CN118560094B

CN118560094B - Three-piece carton forming machine

Info

Publication number: CN118560094B
Application number: CN202311622841.1A
Authority: CN
Inventors: 王雷; 冯孝贤; 肖利昌
Original assignee: Zhirui Intelligent Equipment Wuxi Co ltd
Current assignee: Zhirui Intelligent Equipment Wuxi Co ltd
Priority date: 2023-11-29
Filing date: 2023-11-29
Publication date: 2025-04-15
Anticipated expiration: 2043-11-29
Also published as: CN118560094A

Abstract

The present disclosure discloses a three-piece carton forming machine. The machine comprises a frame, a main paperboard bin, a conveyor, a picking and placing device, a dispensing system, a control system and a paper box forming female die, wherein the main paperboard bin is arranged on the frame and used for placing a main paperboard to be processed, the conveyor is arranged on the lower side of a discharging part of the main paperboard bin, the picking and placing device is arranged on the upper side of the conveyor and used for taking the main paperboard out of the main paperboard bin and placing the main paperboard on the conveyor, the dispensing system is arranged on the frame, two side paperboard bins are used for placing side paperboards to be processed, the side paperboard picking and placing device is arranged on the lower side of the side paperboard bin and used for taking the side paperboards out of the side paperboard bin, the paper box male die is arranged between the two side paperboard bins, the paper box forming female die is arranged on the lower side of the paper box male die and used for forming the main paperboard and the side paperboards into a paper box, and the control system is connected with the above devices. The equipment can realize full automation, and main cardboard feed bin, conveyer, side cardboard feed bin and carton shaping master model all can be adjusted in order to adapt to not unidimensional and different grade type carton shaping manually.

Description

Three-piece type carton forming machine

Technical Field

The present disclosure relates generally to the field of packaging equipment technology. And more particularly to a three-piece carton forming machine.

Background

At present, the three-piece type carton has the characteristics of high strength, material saving, high standardization degree and the like, and is widely accepted, so that the market demand of the three-piece type carton forming machine is also becoming vigorous. The main cardboard of the current three-piece type cardboard box is taken out from the main cardboard storage bin and then placed into the cardboard conveying track. The paperboard pushing hand pushes the paperboard to move forward in the paperboard conveying track, and spraying of the adhesive is completed in the process until the paperboard is conveyed to the position above the forming female die. The first side paperboard and the second side paperboard are respectively taken out from the horizontal bin of the first side paperboard and the second side paperboard in the horizontal direction through the sucker. The sucker releases vacuum, the side paper board freely falls down along the guide channel and falls into the C-shaped space of the side paper board pusher, the side paper board is in a floating state in the C-shaped space, the side paper board pusher pushes out, and the C-shaped space drives the paper board to be clamped into the male die. The male mould drives the side paper to move downwards along the inner wall of the C-shaped space until the side paper contacts the main paper board in place. The male die continues to descend to drive the side paper boards and the main paper boards to be inserted into the female die, and corresponding folding and bonding work is completed.

However, in the prior art, the problem of difficult adjustment of changing cartons with different sizes exists in the whole process of storage, conveying and forming of the storage bin, and the degree of mechanization of the poor matching degree between all the parts is low.

In view of the foregoing, there is a need for a three-piece carton forming machine that addresses at least one of the above-described problems.

Disclosure of Invention

To address at least one or more of the technical problems mentioned above, the present disclosure presents, among other things, a three-piece carton forming machine.

The present disclosure provides a three-piece carton forming machine. The three-piece type carton forming machine comprises a frame, a main carton bin, a conveying device, a picking and placing device, a dispensing system, two side carton bins, a side carton picking and placing device, a carton male die, a carton forming female die and a control system. The machine comprises a frame, a main paperboard bin, a conveying device, a picking and placing device, a dispensing system, a side paperboard picking and placing device, a carton male die and a carton female die, wherein the main paperboard bin is arranged on the frame and used for placing a main paperboard to be processed, the conveying device is arranged on the lower side of a discharging part of the main paperboard bin and used for conveying the main paperboard taken out from the main paperboard bin, the picking and placing device is arranged on the upper side of the conveying device and used for taking out the main paperboard from the main paperboard bin and placing the main paperboard on the conveying device, the dispensing system is arranged on the frame, the two side paperboard bins are used for placing side paperboards to be processed, the side paperboard picking and placing device is arranged on the lower side of the side paperboard bin and used for taking out the side paperboards from the side paperboard bin, the carton male die is arranged between the two side paperboard bins, and the carton female die is arranged on the lower side of the carton male die and used for forming the main paperboard and the side paperboard into a carton. The control system is connected with the main paperboard bin, the conveying device, the picking and placing device, the dispensing system, the side paperboard bin, the side paperboard picking and placing device, the carton male die and the carton forming female die, wherein the dispensing system dispenses the main paperboard before the main paperboard is transmitted to the carton forming female die so as to finish pressing of the main paperboard and the side paperboard in the carton forming female die.

In some embodiments, the main cardboard silo includes a silo frame, side guard plates, a guide device, a guard plate adjusting device, a conveying adjusting device, and a conveying holding device. The automatic feeding device comprises a frame, a storage bin frame, side guard plates, a guide device, a guard plate adjusting device, a conveying adjusting device and a conveying adjusting device, wherein the storage bin frame is arranged on the frame, the side guard plates are arranged on two sides of the storage bin frame and used for protecting the side faces of a main paperboard, the guide device is arranged on the storage bin frame and used for supporting the main paperboard and guiding the side guard plates to move to two sides, the guard plate adjusting device is arranged on the storage bin frame and used for adjusting the distance between the side guard plates, the conveying adjusting device is arranged on the storage bin frame, the conveying adjusting device is arranged on the conveying adjusting device and the guide device and used for conveying the main paperboard, and the conveying adjusting device can adjust the conveying adjusting device to move along the guide device.

In some embodiments, the bin rack includes first and second support profiles, first and second upper connection plates, first and second lower connection plates. The first support section bar is parallel to the second support section bar, one end of the first upper connecting plate is connected to the first support section bar, a first through hole is formed in the other end of the first upper connecting plate, one end of the second upper connecting plate is connected to the second support section bar, a second through hole is formed in the other end of the second upper connecting plate, one end of the first lower connecting plate is connected to the first support section bar, a third through hole and a fourth through hole are formed in the other end of the first lower connecting plate, one end of the second lower connecting plate is connected to the second support section bar, and a fifth through hole and a sixth through hole are formed in the other end of the second lower connecting plate.

In some embodiments, the guide includes a first guide shaft, a second guide shaft, and a third guide shaft. The first guide shaft is inserted into the third through hole and the fifth through hole through a round shaft sleeve, the second guide shaft is inserted into the fourth through hole and the sixth through hole through a round shaft sleeve, the third guide shaft is inserted into the first through hole and the second through hole through a round shaft sleeve, and the first guide shaft is parallel to the second guide shaft and the third guide shaft.

In some embodiments, a seventh through hole is further formed between the third through hole and the fourth through hole of the first lower connecting plate, an eighth through hole is further formed between the fifth through hole and the sixth through hole of the second lower connecting plate, a ninth through hole is further formed in the first upper connecting plate, a tenth through hole is further formed in the second upper connecting plate, and the guard plate adjusting device comprises a first positive and negative screw rod and a second positive and negative screw rod. The first positive and negative screw rod is inserted into the seventh through hole and the eighth through hole through two positive and negative T-shaped nuts, the second positive and negative screw rod is inserted into the ninth through hole and the tenth through hole through two positive and negative T-shaped nuts, and the second positive and negative screw rod is parallel to the first positive and negative screw rod.

In some embodiments, the guard plate adjusting device further comprises a transmission device, wherein the transmission device is arranged at the end part of the same side of the first positive and negative screw rod and the second positive and negative screw rod, so that the first positive and negative screw rod and the second positive and negative screw rod synchronously rotate.

In some embodiments, the guard plate adjusting device further comprises a guard plate rotating handle arranged at one end of the first positive and negative screw rod far away from the transmission device and used for manually adjusting the distance between the first support section bar and the second support section bar.

In some embodiments, the skirt includes a first skirt and a second skirt. The first side guard plate is connected to the first support section bar and the first lower connecting plate, and the second side guard plate is connected to the second support section bar and the second lower connecting plate.

In some embodiments, an eleventh through hole is further formed between the fourth through hole and the seventh through hole of the first lower connecting plate, and a twelfth through hole is further formed between the sixth through hole and the eighth through hole of the second lower connecting plate. The conveying and adjusting device comprises a conveying and adjusting positive and negative screw rod, and the conveying and adjusting positive and negative screw rod is inserted into the eleventh through hole and the twelfth through hole through two positive and negative T-shaped nuts.

In some embodiments, the conveying adjustment device further comprises a conveying rotating handle, wherein the conveying rotating handle is arranged at one end of the conveying adjustment positive and negative screw rod and is used for manually adjusting the conveying containing device.

In some embodiments, the transport pod includes a first transport pod and a second transport pod. The first conveying and containing device is sleeved on the first guide shaft and the second guide shaft respectively through two circular shaft sleeves and sleeved on the conveying and adjusting positive and negative screw rod through a positive and negative rotation T-shaped nut, the second conveying and containing device is sleeved on the first guide shaft and the second guide shaft respectively through two circular shaft sleeves and sleeved on the conveying and adjusting positive and negative screw rod through a positive and negative rotation T-shaped nut, and the first conveying and containing device is parallel to the second conveying and containing device.

In some embodiments, the conveyor includes a conveyor frame, a linear drive mechanism, a pusher, and an extension rod. The conveying device frame comprises a mould pressing station and a conveying station for conveying materials to the mould pressing station, the linear driving mechanism is arranged on the conveying device frame, the initial position of the pushing piece is located on the conveying station of the conveying device frame, one end of the extending rod is connected with the pushing piece, the other end of the extending rod is connected with the linear driving mechanism and used for extending the pushing stroke of the pushing piece, and the linear driving mechanism drives the extending rod and the pushing piece to do linear reciprocating movement in the conveying device frame so as to push materials with different sizes to enter the mould pressing station.

In some embodiments, the linear drive mechanism includes a conveyor mechanism and a servo motor. The conveying mechanism comprises a conveying rod connected to the conveying device frame, a driving wheel arranged on one side of the conveying rod, a driven wheel arranged on the other side of the conveying rod and a belt sleeved between the driving wheel and the driven wheel and connected with the extension rod, wherein the servo motor is arranged on the conveying rod, and an output shaft of the servo motor is connected with the driving wheel.

In some embodiments, the belt is a synchronous belt, the linear driving mechanism further comprises an adapter, the adapter comprises a belt connecting part and an extension rod connecting part connected with the belt connecting part, wherein the extension rod is connected with the extension rod connecting part, a limiting groove is formed in the belt connecting part, limiting teeth are embedded in the groove wall of the limiting groove, and the limiting teeth are meshed with the belt.

In some embodiments, the transfer device further comprises a glide mechanism comprising a slide rail and a slider slidingly coupled to the slide rail, wherein the slider is coupled to the adapter and the slide rail is coupled to the transfer bar and parallel to the belt.

In some embodiments, the pusher member includes a push plate, a carrier plate, and a back-off baffle. The push plate is connected to one end of the extension rod, which is far away from the linear driving mechanism, the bearing plate is connected to the bottom of the push plate, the avoidance baffle is connected to the top of the push plate, and an obtuse angle is formed between the avoidance baffle and the push plate.

In some embodiments, the conveyor frame includes a first conveyor rail and a second conveyor rail that are parallel to each other, and the conveyor further includes two support assemblies, each of which is coupled to the first conveyor rail and the second conveyor rail, respectively, for supporting material.

In some embodiments, the conveyor further comprises a carrier assembly comprising four connection plates and two carrier bars. Every two connecting plates are arranged on the first conveying guide rail and the second conveying guide rail at intervals and symmetrically, each connecting plate is provided with a bearing rod through hole, and each bearing rod is inserted into the first conveying guide rail and the second conveying guide rail through the corresponding bearing rod through hole so as to support the two supporting components and the linear driving mechanism.

In some embodiments, each connecting plate is further provided with a frame positive and negative screw rod through hole, and the conveying device further comprises a frame adjusting device, wherein the frame adjusting device comprises two frame positive and negative screw rods, a frame transmission device and a frame adjusting handle. The frame positive and negative screw rods of the machine frame are respectively inserted into corresponding two frame positive and negative screw rod through holes on the connecting plate through two positive and negative T-shaped nuts, the frame transmission device is connected with the same side end parts of the two frame positive and negative screw rods and is used for driving the two frame positive and negative screw rods to synchronously move, and the frame adjusting handle is arranged at one end of one frame positive and negative screw rod and is used for manually adjusting the distance between the first conveying guide rail and the second conveying guide rail.

In some embodiments, the conveying device further comprises two positioning stop blocks symmetrically arranged on the first conveying guide rail and the second conveying guide rail at two sides of the molding station so as to slide along the first conveying guide rail and the second conveying guide rail and be locked and fixed after sliding in place.

In some embodiments, the pick-and-place device includes a power mechanism, an extraction device, and a linkage mechanism. The three-piece type carton forming machine comprises a frame, a power mechanism arranged on the frame, an extracting device used for extracting and releasing materials, a connecting rod mechanism comprising a swing arm, a sliding seat, a sliding rod device and a conveying device, wherein one end of the swing arm is rotatably connected to the frame through a first rotating shaft and connected with the power mechanism, one end of the sliding rod device is rotatably connected to the other end of the swing arm through a second rotating shaft and is arranged on the extracting device after penetrating through the sliding seat, the power mechanism can drive the sliding rod device to slide in the sliding seat through the swing arm and simultaneously rotate, and the sliding rod device can drive the extracting device to take materials from a material storage area of the three-piece type carton forming machine and place the materials into the conveying device.

In some embodiments, the extraction device includes a carrier member and a gripping device. The gripping device is arranged on the bearing member and is used for gripping materials.

In some embodiments, the gripping device is at least one vacuum chuck or at least one pneumatic jaw.

In some embodiments, the pick-and-place device further comprises a disturbing line comprising at least one branch line tube, a first repeater, a second repeater, a first trunk line tube, a second trunk line tube, and a third trunk line tube. At least one of the branch pipes is arranged on the bearing member and is connected with at least one of the vacuum chuck or at least one pneumatic clamping jaw one by one; the first transfer device is fixedly arranged on the rack and provided with a first axis which is collinear with the central axis of the first rotating shaft, the second transfer device is fixedly arranged on the swing arm or the second rotating shaft and provided with a second axis which is collinear with the central axis of the second rotating shaft, one end of the first main line pipe is used for being connected with a vacuum pumping device, the other end of the second main line pipe is connected with the first transfer device, the other end of the second main line pipe is connected with the second transfer device, one end of the third main line pipe is connected with the second transfer device, the other end of the third main line pipe is connected with each vacuum sucker through at least one branch line pipe, and the first transfer device can communicate the first main line pipe with the second main line pipe and allow the second main line pipe to rotate around the first axis relative to the first main line pipe, and the second transfer device can communicate the third main line pipe with the second main line pipe and allow the second main line pipe to rotate around the second axis relative to the third main line pipe.

In some embodiments, the slide bar apparatus includes a slide bar and a first connecting end plate. One end of the sliding rod is rotatably connected with the other end of the swing arm through a second rotating shaft, one end of the first connecting end plate is fixedly connected with the bearing member, and the other end of the first connecting end plate is fixedly connected with the other end of the sliding rod so as to enhance the connection strength of the sliding rod and the bearing member.

In some embodiments, the slide bar device further comprises a reinforcing plate secured to the load bearing member and fixedly coupled to the slide bar.

In some embodiments, the slide bar arrangement includes a first slide bar, a second slide bar, and a second connecting end plate. The first connecting end plate is rotatably connected to the other end of the swing arm through a second rotating shaft, and the other ends of the first sliding rod and the second sliding rod are connected to the second connecting end plate.

In some embodiments, the included angle between the central line of the swing arm and the central line of the slide bar device along the length direction at the initial position is 85-105 degrees.

In some embodiments, the power mechanism comprises a motor, an engine, a swing cylinder, or an assembly consisting essentially of a cylinder, a rack, and a pinion, and configured to drive the swing arm to rotate.

In some embodiments, the side board storage bin includes a side board storage bin rack, side board side guard plates, a platen device, and a paper pallet. The side paper board storage bin is arranged on the frame, the side paper board side guard board is connected to the side paper board storage bin and used for protecting the side face of the side paper board, the pressing plate device is arranged on the side paper board storage bin and used for compacting the top of the side paper board, and the paper supporting plate is arranged at the bottom of the side paper board side guard board and used for supporting the side paper board.

In some embodiments, the number of the side paper board side guard plates is two, and the two side paper board side guard plates are both arranged on one side of the side paper board storage bin frame away from the male die of the paper box.

In some embodiments, the side panel is a unitary panel structure and the side panel has a width greater than the width of the side panel.

In some embodiments, the platen apparatus includes a platen slide bar, a platen slide block, and a platen. The pressing plate sliding rod is fixedly connected to the side paper board storage bin frame and is positioned at the middle position of the two side paper board side guard boards, the pressing plate sliding block is slidably arranged on the pressing plate sliding rod, one end of the pressing plate is arranged on the pressing plate sliding block and moves along the pressing plate sliding rod along with the pressing plate sliding block, and the other end of the pressing plate sliding block extends out to the upper part of the side paper board to be pressed against the side paper board under the action of gravity.

In some embodiments, the bottom of the side paper board side guard board is provided with a strip groove, and the paper supporting board comprises a supporting board and a baffle. The baffle can be slidably arranged at the bottom of the side paper board side guard plate and used for stopping the forward tilting of the side paper board and limiting the falling position of the side paper board.

In some embodiments, the side board bin further comprises a side board adjusting device connected with the two side board side boards for adjusting the distance between the two side board side boards.

In some embodiments, shaft sleeves are arranged on one sides of the two side paper board side guard plates facing the side paper board storage bin frame, side paper board through holes are formed in the side paper board storage bin frame, and the side guard plate adjusting device comprises side guard plate positive and negative screw rods and side paper board adjusting handles. The side board adjusting handle is arranged at one end of the side board positive and negative screw rod penetrating out of the side board through hole and used for rotating the side board positive and negative screw rods to drive the two side board side boards to move relatively or oppositely.

In some embodiments, the carton male mold comprises a male mold drive and a male mold module. The male die driving device is arranged on the frame, and the male die module is arranged on the male die driving device and is driven by the male die driving device to reciprocate up and down.

In some embodiments, the male mold module includes a male mold plate, two male mold plates, and a drive connection plate. The two male mold guard plates are symmetrically arranged on two sides of the male mold Cheng Xingban, which are opposite to the side paperboard storage bin, one end of the driving connecting plate is fixedly connected with the male mold Cheng Xingban, and the other end of the driving connecting plate is connected with the male mold driving device.

In some embodiments, the three-piece carton forming machine further comprises two side paperboard bending mechanisms, wherein the two side paperboard bending mechanisms are used for bending the side paperboards taken out by the side paperboard taking and placing device after the side paperboards are pushed to the male carton mould.

In some embodiments, the side board bending mechanism comprises a side board bending power device and a side board bending plate. The side paper board bending power device is arranged on the frame, and the side paper board bending plate is connected with the side paper board bending power device so as to move towards the male mold guard plate under the drive of the side paper board bending power device to bend the side paper board.

In some embodiments, the carton forming master mold includes a base frame, a CD-way carriage, corner mold fixtures, and an adjustment device. The CD-oriented sliding frame is movably arranged on the base frame, the corner die fixing piece is arranged on the CD-oriented sliding frame and used for installing forming die parts, and the adjusting device is arranged on the base frame, connected with the CD-oriented sliding frame and used for adjusting the position of the CD-oriented sliding frame.

In some embodiments, the base frame includes a first CD-oriented guide bar, a second CD-oriented guide bar, a first MD-oriented guide bar, a second MD-oriented guide bar, four connection blocks, and four adjustment units. The first CD guide rod is parallel to the second CD guide rod, the first MD guide rod is parallel to the second MD guide rod and perpendicular to the first CD guide rod, each connecting seat comprises a first connecting seat through hole and a fixing part perpendicular to the axis of the first through hole, each adjusting unit is used for adjusting the position of the base frame, two ends of the first CD guide rod and the second CD guide rod respectively penetrate through the first connecting seat through holes of the two connecting seats, each end of the first CD guide rod and each end of the second CD guide rod is connected to one connecting seat through one adjusting unit, and two ends of the first MD guide rod and the second MD guide rod are respectively connected with the fixing parts of one connecting seat.

In some embodiments, the CD-directed carriage includes two CD-directed carriage end plates and two CD-directed carriage guide bars. Each CD-oriented sliding frame end plate comprises a CD guide sleeve, two CD-oriented sliding frame guide rods are respectively connected to the CD-oriented sliding frame end plates, and the CD-oriented sliding frames are respectively sleeved on the first CD-oriented guide rod and the second CD-oriented guide rod through the CD guide sleeves at the two ends so as to be capable of sliding along the first CD-oriented guide rod and the second CD-oriented guide rod.

In some embodiments, the corner mold fixture includes a first side plate and a second side plate. The first side plate is provided with two corner mold through holes, the two CD-oriented sliding frame guide rods are respectively inserted into the two corner mold through holes through shaft sleeves, and the second side plate is vertically connected with the first side plate.

In some embodiments, the number of the CD-directed sliding frames is two, and each CD-directed sliding frame is symmetrically provided with two corner mold fixing pieces, wherein the first side plates of the two corner mold fixing pieces on the same CD-directed sliding frame are oppositely arranged, and the second side plates of the two adjacent corner mold fixing pieces on different CD-directed sliding frames are oppositely arranged.

In some embodiments, a second connecting seat through hole is formed in one connecting seat on the second CD-direction guide rod side, the CD-direction sliding frame end plate further comprises connecting lug parts, lug holes are formed in the connecting lug parts, the connecting lug parts are located on the CD-direction guide sleeve side of the CD-direction sliding frame end plate, and the adjusting device comprises a CD-direction reversing mechanism, wherein the CD-direction reversing mechanism comprises a first CD-direction positive and negative screw rod, a second CD-direction positive and negative screw rod, a CD-direction transmission device and a CD-direction adjusting handle. The CD forward and backward guide rod comprises a first CD forward and backward guide rod, a second CD forward and backward guide rod, a CD forward and backward transmission device and a CD forward and backward adjustment handle, wherein the first CD forward and backward guide rod is connected to a connecting seat on two sides of the first CD guide rod through a bearing seat and is inserted into two lug holes on the same side through a forward and backward T-shaped nut, the second CD forward and backward guide rod is connected to the connecting seat on two sides of the second CD guide rod through a bearing seat, one end of the second CD forward and backward guide rod penetrates through the connecting seat and is inserted into two lug holes on the other side through the forward and backward T-shaped nut, the CD forward and backward guide rod and the second CD forward and backward guide rod are synchronously rotated, and the CD forward and backward adjustment handle is arranged at one end of the second CD forward and backward guide rod penetrates out of the connecting seat and is used for adjusting the two CD forward sliding frames along the direction of the first CD guide rod.

In some embodiments, a positive and negative screw rod through hole is further formed between the two corner mold through holes on the first side plate, the adjusting device further comprises an MD direction reversing mechanism, and the MD direction reversing mechanism comprises a sliding shaft, two sliding frame positive and negative screw rods, two pairs of first bevel gears, two pairs of second bevel gears and an MD direction adjusting handle. One end of the sliding shaft penetrates through a connecting seat on one side of the first CD guide rod and is rotatably connected to the connecting seat on one side of the first CD guide rod, the sliding shaft is parallel to the first CD guide rod, each sliding frame positive and negative screw rod is inserted into two positive and negative screw rod through holes on the same CD sliding frame through a pair of positive and negative T-shaped nuts, two ends of each CD sliding frame are rotatably connected to two CD sliding frame end plates on the same CD sliding frame and one side, which is close to the sliding shaft, of the sliding shaft penetrates through the CD sliding frame end plates, each first bevel gear is arranged on the positive and negative screw rods of the sliding frame penetrating through the CD sliding frame end plates, each second bevel gear is correspondingly arranged on the CD sliding frame end plate where the first bevel gear is located and is meshed with the first bevel gear, each second bevel gear is provided with a bevel gear hole, the MD adjusting handle is mounted on the sliding shaft on the connecting seat on one side of the first CD guide rod and penetrates through the two bevel gears on the same side in sequence, and the two bevel gears are driven to rotate synchronously when inserted into the two bevel gears on the same side in sequence.

In some embodiments, the carton forming master mold further comprises an MD-direction slider comprising two MD-direction slider end plates and two MD-direction slider guide bars. Each MD sliding frame end plate comprises an MD guiding sleeve, two MD sliding frame guide rods are respectively connected to the two MD sliding frame end plates, and the MD sliding frames are respectively sleeved on the first MD guiding rods and the second MD guiding rods through the MD guiding sleeves at the two ends so as to be capable of sliding along the first MD guiding rods and the second MD guiding rods.

In some embodiments, the second side plate of the corner mold fixing member is provided with two elongated holes, and two MD sliding frames are provided, and two MD sliding frame guide rods of each MD sliding frame pass through the elongated holes of the two symmetrical second side plates so as to move synchronously with the corner mold fixing member.

In some embodiments, each corner mold fixture further comprises a third side plate parallel to the first side plate and sleeved on two CD-directed carriage guide bars on the same side.

In some embodiments, the carton forming master mold further comprises four first glue pressing mechanisms and four second glue pressing mechanisms. The four first glue pressing mechanisms are symmetrically arranged on the third side plate respectively and used for compacting glue between the side paper plates and the main paper plates along the direction from the first CD to the guide rod, and the four second glue pressing mechanisms are symmetrically arranged on the second side plate respectively and used for compacting glue between the side paper plates and the main paper plates along the direction from the first MD to the guide rod.

In some embodiments, the first glue pressing mechanism comprises a first glue pressing plate and a first glue pressing cylinder. The first glue pressing cylinder is arranged on the third side plate and connected with the first glue pressing plate through a piston so as to drive the first glue pressing plate to reciprocate towards the forming area of the carton forming female die.

In some embodiments, the second glue pressing mechanism comprises a second glue pressing plate and a second glue pressing cylinder. The second glue pressing cylinder is arranged on the second side plate and connected with the second glue pressing plate through a piston so as to drive the second glue pressing plate to reciprocate towards the forming area of the paper box forming female die along the moving direction perpendicular to the first glue pressing plate.

In some embodiments, the carton forming master mold further comprises a unidirectional mechanism comprising a blocking portion and a unidirectional rotating portion. The blocking part is arranged on the third side plate on the upper side of the first glue pressing plate, the unidirectional rotating part is rotatably arranged on the third side plate, wherein the unidirectional rotating part can rotate towards the forming area of the paper box forming female die when the paper box male die punches the paper box, and the unidirectional rotating part is stopped at the blocking part when the paper box male die withdraws so as to prevent the paper box from being brought out of the paper box forming female die.

In some embodiments, the carton forming master mold further comprises 4 folding compacting modules, wherein the 4 folding compacting modules are respectively arranged on one corner mold fixing piece and used for stamping forming of the three-piece carton.

In some embodiments, the tucker compression module includes a first forming plate, a second forming plate, and a third forming plate. The first forming plate is connected to the second side plate, the second forming plate is connected to the first side plate, the third forming plate is connected to the third side plate, and the third forming plates of two adjacent folding compaction modules are spliced together.

In some embodiments, the three-piece carton forming machine further comprises an out-of-box device comprising an out-of-box conveyor, an out-of-box gripping device, and an out-of-box conveyor. The carton discharging and grabbing device is arranged on the carton discharging and conveying device in a sliding mode and used for grabbing the formed cartons on the carton forming female die, and the carton discharging and conveying device is arranged on the lower side of the carton discharging and conveying device and used for conveying the cartons placed through the carton discharging and grabbing device.

In some embodiments, the out-of-box conveyor includes an out-of-box base plate, an out-of-box timing belt, and an out-of-box power device. The box discharging base plate extends from the box forming female die to the box discharging conveying device, the box discharging synchronous conveyor belt is arranged on the box discharging base plate along the length direction of the box discharging base plate, and the box discharging power device is connected with the box discharging synchronous conveyor belt so as to drive the box discharging synchronous conveyor belt to rotate.

In some embodiments, the out-of-box gripping device includes an out-of-box slip portion, an out-of-box support portion, and an out-of-box suction cup. The box discharging sliding part is slidably arranged on the box discharging synchronous conveyor belt, the box discharging supporting part is connected with the box discharging sliding part, and the box discharging sucker is arranged at one end, far away from the box discharging sliding part, of the box discharging supporting part and is used for grabbing the paper boxes from the paper box forming female die.

The three-piece type carton forming machine provided by the embodiment of the disclosure can realize the following technical effects:

as provided above, the main board is sucked from the main board storage bin by the pick-and-place device and placed on the conveyor. The main paper board is conveyed to the paper box forming female die by the conveying device, and then the side paper board picking and placing device sucks the side paper board from the side paper board storage bin and bends at the paper box male die by matching with the side paper board bending mechanism to enter the paper box forming female die. The carton is formed into corresponding cartons under the combined action of the carton male mold and the carton forming female mold, so that the cartons are output through the carton discharging device, and the whole process is fully automated.

The guard plate adjusting device of the main paperboard bin adjusts the first side guard plate and the second side guard plate in a mode of adding T-shaped nuts to the positive and negative screw rods, so that the distance between the first side guard plate and the second side guard plate can be manually changed to adapt to main paperboards of different sizes. The conveying adjusting device also adjusts the conveying and accommodating device in a mode of adding a T-shaped nut to the front and back screw rods, so that the distance between the first conveying and accommodating device and the second conveying and accommodating device can be manually changed to adapt to conveying work of main paperboards with different sizes.

The conveying device can increase the stroke of the pushing piece by adding an extension rod at the end part of the conveying rod, so that materials with different sizes, such as a main paperboard, are pushed to a proper position for punching, and the position of the conveying device does not need to be integrally adjusted.

The taking and placing device has compact structure, small load inertia force and good mechanism rigidity, and is suitable for taking and placing materials at high speed.

The side paperboard bin adopts the pressing plate device to compact the side paperboard by gravity, so that the compacting effect is good and the energy is saved.

The side paperboard bending mechanism is matched with the side paperboard taking and placing device to bend the side paperboards at the male die module, the whole process is controlled, and the yield of the produced cartons is increased.

The corner die fixing piece of the paper box forming female die can adapt to paper box forming of different sizes, and is convenient to replace and good in compatibility. The carton forming female die can easily adjust the CD to the sliding frame along two vertical directions through the CD to reversing mechanism and the MD to the reversing mechanism, and the forming space in the carton forming female die is conveniently adjusted so as to adapt to carton forming of different sizes and different types.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 shows a schematic view of a main paperboard silo according to an embodiment of the disclosure;

FIG. 2 illustrates a schematic diagram of a conveyor of an embodiment of the present disclosure;

FIG. 3 illustrates another schematic view of a conveyor of an embodiment of the present disclosure;

FIG. 4 illustrates a partial enlarged view of portion A of FIG. 3 in accordance with an embodiment of the present disclosure;

FIG. 5 illustrates a partial enlarged view of portion B of FIG. 3 in accordance with an embodiment of the present disclosure;

FIG. 6 illustrates a schematic view of a pick-and-place device in accordance with an embodiment of the present disclosure;

FIG. 7 illustrates another schematic view of a pick-and-place device in accordance with an embodiment of the present disclosure;

FIG. 8 illustrates yet another schematic view of a pick-and-place device in accordance with an embodiment of the present disclosure;

FIG. 9 shows a schematic view of a side board bending mechanism according to an embodiment of the present disclosure;

FIG. 10 illustrates a schematic view of a side liner magazine, carton male mold and side liner pick-and-place apparatus cooperation in accordance with an embodiment of the present disclosure;

FIG. 11 illustrates another schematic view of a side liner magazine, carton male mold and side liner pick and place apparatus engagement in accordance with an embodiment of the present disclosure;

FIG. 12 shows a schematic view of a side cardboard silo of an embodiment of the disclosure;

FIG. 13 illustrates a schematic view of a base frame of a carton forming master mold in accordance with an embodiment of the disclosure;

FIG. 14 illustrates a schematic view of a CD-oriented slide of a carton forming master mold in accordance with an embodiment of the disclosure;

FIG. 15 illustrates a schematic view of an MD glide of a carton forming master in accordance with an embodiment of the present disclosure;

FIG. 16 illustrates a schematic view of a first and second glue mechanism of a carton forming master mold in accordance with an embodiment of the disclosure;

FIG. 17 illustrates a schematic view of a one-way mechanism of a carton forming master mold in accordance with an embodiment of the disclosure;

FIG. 18 illustrates a schematic view of a tucking die block of a carton forming master die according to an embodiment of the disclosure;

FIG. 19 shows a schematic view of a carton forming master mold in accordance with an embodiment of the disclosure;

FIG. 20 illustrates another schematic view of a carton forming master mold in accordance with embodiments of the disclosure;

FIG. 21 shows a schematic view of portion A of FIG. 20 in accordance with an embodiment of the present disclosure;

FIG. 22 shows a schematic view of a box ejection device according to an embodiment of the present disclosure;

fig. 23 shows a schematic view of a three-sheet carton forming machine in accordance with an embodiment of the disclosure;

fig. 24 illustrates a schematic structural view of a three-piece carton forming process according to an embodiment of the disclosure;

fig. 25 illustrates a flow chart of a three-piece carton forming process according to an embodiment of the disclosure.

Reference numerals:

1. The main paper board storage bin comprises a main paper board storage bin, 11, a storage bin frame, 111, a first supporting section bar, 112, a second supporting section bar, 113, a first upper connecting plate, 114, a second upper connecting plate, 115, a first lower connecting plate, 116, a second lower connecting plate, 12, a side guard plate, 121, a first side guard plate, 122, a second side guard plate, 13, a guiding device, 131, a first guiding shaft, 132, a second guiding shaft, 133, a third guiding shaft, 14, a guard plate adjusting device, 141, a first positive and negative screw rod, 142, a second positive and negative screw rod, 143, a transmission device, 144, a guard plate rotating handle, 15, a conveying adjusting device, 151, a conveying adjusting positive and negative screw rod, 152, a conveying rotating handle, 16, a conveying containing device, 161, a first conveying containing device, 162 and a second conveying containing device;

2. Conveyor, 21, conveyor frame, 211, molding station, 212, conveying station, 213, first conveying rail, 214, second conveying rail, 22, linear drive mechanism, 221, conveying mechanism, 2211, conveying rod, 2212, driving wheel, 2213, driven wheel, 2214, belt, 222, servo motor, 223, adapter, 2231, belt connection, 22311, limit slot, 2232, extension rod connection, 23, pusher, 231, push plate, 232, bearing plate, 233, avoidance baffle, 24, extension rod, 25, sliding mechanism, 251, slide rail, 252, slider, 26, support assembly, 27, bearing assembly, 271, connection plate, 272, bearing rod, 28, frame adjustment device, 281, frame forward and backward lead screw, 282, frame transmission device, 283, frame adjustment handle, 29, positioning stop;

3. The device comprises a picking and placing device, 31, a power mechanism, 32, an extracting device, 321, a bearing member, 322, a grabbing device, 33, a connecting rod mechanism, 331, a swing arm, 332, a sliding seat, 333, a sliding rod device, 3331, a sliding rod, 3332, a first connecting end plate, 3333, a first sliding rod, 3334, a second sliding rod, 3335, a second connecting end plate, 334, a first rotating shaft, 335, a second rotating shaft, 34, a disturbing pipeline, 341, a branch pipeline, 342, a first transfer device, 343, a second transfer device, 344, a first line pipe, 345, a second line pipe, 346, a third line pipe, 347 and a bracket;

4. Side paper board bin frame, side paper board side guard board, 43, pressing board device, 431, pressing board sliding rod, 432, pressing board sliding block, 433, pressing board, 44, paper supporting board, 441, supporting board, 442, baffle;

5. a side paper board taking and placing device;

6. The carton male mould, 61, a male mould driving device, 62, a male mould module, 621, a male mould Cheng Xingban, 622, a male mould guard plate, 623, a driving connecting plate;

7. Forming a female mold by using a paper box; 71 a base frame; 711, first CD guide bar; 712, second CD guide bar, 713, first MD guide bar, 714, second MD guide bar, 715, connection base, 7151, first connection base through hole, 7152, second connection base through hole, 7153, fixing portion, 716, adjustment unit, 72, CD-direction carriage, 721, CD-direction carriage end plate, 7211, connection lug portion, 72111, lug hole, 722, CD-direction carriage guide bar, 723, CD-direction guide sleeve, 73, corner die holder, 731, first side plate, 7311, corner die through hole, 732, second side plate, 7321, strip hole, 733, third side plate, 74, adjustment device, 741, CD-direction reversing mechanism, 7411, first CD-direction forward and reverse screw, 7412, second CD-direction forward and reverse screw, 7413, CD-direction transmission device, 7414, CD-direction adjustment handle, 742, MD-direction reversing mechanism, 7421, sliding shaft, 7422, sliding frame, 7423, first bevel gear, 7424, second bevel gear, 74241, bevel gear hole, handle, 7425, MD-direction guide bar, 733, third side plate, 74, adjustment device, 741, CD-direction reversing mechanism, 7411, first die plate, second die plate, 7478, second die set, 7421, 7412, second die set, wire guide plate, 7422, 7413, second die set, guide plate, 7423, guide plate, 7424, suction plate suction, suction;

8. The device comprises a box discharging device, 81, a box discharging conveying device, 811, a box discharging substrate, 812, a box discharging synchronous conveying belt, 813, a box discharging power device, 82, a box discharging grabbing device, 821, a box discharging sliding part, 822, a box discharging supporting part, 823, a box discharging sucking disc, 83 and a box discharging conveying device;

9. a side paper board bending mechanism, 91, a side paper board bending power device and 92, a side paper board bending plate.

Detailed Description

The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the disclosure. Based on the embodiments in this disclosure, all other embodiments that may be made by those skilled in the art without the inventive effort are within the scope of the present disclosure.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the present disclosure is for the purpose of describing particular embodiments only, and is not intended to be limiting of the disclosure. As used in the specification and claims of this disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the present disclosure and claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As used in this specification and the claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, the term "coupled" may be a fixed connection, a removable connection, or a unitary construction, may be a mechanical connection, or an electrical connection, may be a direct connection, or may be an indirect connection via an intermediary, or may be an internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

As shown in fig. 23, an embodiment of the present disclosure provides a three-piece carton forming machine. The three-piece type carton forming machine comprises a frame, a main carton bin 1, a conveying device 2, a picking and placing device 3, two side carton bins 4, a side carton picking and placing device 5, a carton male die 6, a carton forming female die 7 and a carton discharging device 8. The main paperboard bin 1 is arranged on the frame and is used for placing main paperboards to be processed. The conveying device 2 is arranged at the lower side of the discharging part of the main board storage bin 1 and is used for conveying the main board taken out from the main board storage bin 1. The pick-and-place device 3 is arranged on the upper side of the conveyor 2 for taking out the main board from the main board storage bin 1 and placing it on the conveyor 2. Two side cardboard silos 4 are used for placing the side cardboard to be processed. The side board pick-and-place device 5 is arranged at the lower side of the side board storage bin 4 for taking out side boards from the side board storage bin 4. The carton male mould 6 is arranged between the two side paperboard bins 4. The carton forming female die 7 is arranged at the lower side of the carton male die 6 and is used for forming a main paperboard and a side paperboard into a carton. The box discharging device 8 is arranged at the lower side of the box forming female die 7 and is used for conveying the formed boxes out.

Specifically, the frame may be a rectangular parallelepiped frame structure disposed outside the entire three-sheet type carton forming machine for fixing the components of the respective portions of the three-sheet type carton forming machine. In the preferred embodiment shown in fig. 23, there are, in order from left to right, a main cardboard silo 1, a conveyor 2, a carton forming master 7 and an ejection device 8. Wherein the pick-and-place device 3 is located in the upper part of the conveyor 2. Two side cardboard silos 4 are located on the upper outer side of the carton forming master 7. The carton male mold 6 is located on the upper side of the carton forming female mold 7 and between the two side paperboard bins 4. In addition, the limitation based on the place can be other forms and directions as long as the whole conveying and forming process can be realized. The control system is in communication connection with the main paperboard bin 1, the conveying device 2, the picking and placing device 3, the dispensing system, the side paperboard bin 4, the side paperboard picking and placing device 5, the carton male die 6, the carton forming female die 7 and the carton discharging device 8 so as to control the components and the subordinate components thereof to complete corresponding work.

As shown in fig. 1, the main cardboard silo 1 preferably comprises a silo frame 11, side shields 12, a guiding device 13, a shield adjusting device 14, a transport adjusting device 15 and a transport holding device 16. The stock bin rack 11 is mounted on the frame. The side guard plates 12 are installed at both sides of the bin frame 11 for protecting the sides of the main cardboard. The guide device 13 is provided to the stock bin 11 for supporting the main cardboard and guiding the side guard 12 to move to both sides. Guard plate adjusting means 14 are provided to the magazine 11 for adjusting the distance between the side guard plates 12. The conveyance regulating device 15 is provided to the stock bin rack 11. The transport accommodating means 16 is mounted to the transport regulating means 15 and the guide means 13 for transporting the main board. Wherein the transport adjustment device 15 is capable of adjusting the movement of the transport container 16 along the guide 13.

Specifically, the bin rack 11 is located at two side portions of the main cardboard bin 1, and is two support frames in an inverted zigzag shape as a whole. Which is strong enough to support the other components of the whole main cardboard silo 1. The two inverted Z-shaped supporting frames are symmetrically arranged. The number of the side guard plates 12 can be two, and the two side guard plates 12 are symmetrically arranged on branches at the bottoms of the two inverted Z-shaped supporting frames respectively. The side guard 12 prevents the main board from moving to the outside of the side guard 12 after the main board is placed in the main board storage bin 1. The guide means 13 together with the magazine 11 form a supporting frame for the entire main cardboard magazine 1, wherein the arrangement of the guide means 13 on the one hand increases the firmness of the magazine 11 and on the other hand guides the sliding of other components thereon. The guard adjustment device 14 is a combination of a set of positive and negative lead screws and positive and negative T-nuts that allow manual adjustment of the relative positions of the two side guards 12. So that different sizes of main cardboard can be placed between the two side guards 12, and also to accommodate the size of the main cardboard to prevent it from moving between the two side guards 12. The conveyor run 16 may be used to transport the main cartons. The delivery adjustment device 15 is also a combination of a set of positive and negative lead screws and positive and negative T-nuts that allow manual adjustment of the relative position of the delivery holding device 16.

As shown in fig. 1, the silo rack 11 preferably comprises a first support profile 111 and a second support profile 112, a first upper connecting plate 113 and a second upper connecting plate 114, and a first lower connecting plate 115 and a second lower connecting plate 116. The first support profile 111 is parallel to the second support profile 112, one end of the first upper connecting plate 113 is connected to the first support profile 111, the other end is provided with a first through hole, one end of the second upper connecting plate 114 is connected to the second support profile 112, and the other end is provided with a second through hole. One end of the first lower connecting plate 115 is connected to the first supporting section bar 111, the other end is provided with a third through hole and a fourth through hole, one end of the second lower connecting plate 116 is connected to the second supporting section bar 112, and the other end is provided with a fifth through hole and a sixth through hole.

Specifically, the bin rack 11 as described above may be of an inverted zigzag structure. The first support profile 111 is arranged along an incline to the vertical direction. The first upper connecting plate 113 is fixedly connected to the upper end of the first support profile 111 and extends in a direction away from the interior of the silo. The first lower connection plate 115 is fixedly connected to the lower end portion of the first support profile 111 to extend in the direction of the inside of the silo. For example, the inclination angle of the first support profile 111 may be 95 °, 100 ° or the like with respect to the first upper connection plate 113 and the first lower connection plate 115. Of course other values are possible, depending on the space requirements and strength requirements of the main board magazine 1, etc. The second support profile 112, the second upper connecting plate 114 and the second lower connecting plate 116 are arranged symmetrically to the first support profile 111, the first upper connecting plate 113 and the first lower connecting plate 115, respectively. And will not be described in detail herein.

As shown in fig. 1, the guide 13 preferably includes a first guide shaft 131, a second guide shaft 132, and a third guide shaft 133. The first guide shaft 131 is inserted into the third through hole and the fifth through hole through a circular shaft sleeve. The second guide shaft 132 is inserted into the fourth and sixth through holes through a circular shaft sleeve. The third guide shaft 133 is inserted into the first through hole and the second through hole through a circular shaft sleeve. Wherein the first guide shaft 131 is parallel to the second guide shaft 132 and the third guide shaft 133.

Specifically, the first guide shaft 131, the second guide shaft 132, and the third guide shaft 133 are each long cylindrical shafts. In a preferred embodiment, the first guide shaft 131, the second guide shaft 132, and the third guide shaft 133 are the same in length, and the shaft diameters are the same. The guide 13 can support the entire bin and the direction is different from that of the bin rack 11, so that the stability of the bin rack 11 can be ensured. At the same time, the guide 13 may also allow the parts it supports to slide on it, thus providing a convenient adjustment.

As shown in fig. 1, preferably, a seventh through hole is further formed between the third through hole and the fourth through hole of the first lower connecting plate 115, an eighth through hole is further formed between the fifth through hole and the sixth through hole of the second lower connecting plate 116, a ninth through hole is further formed in the first upper connecting plate 113, and a tenth through hole is further formed in the second upper connecting plate 114. The apron adjusting apparatus 14 includes a first positive feedback screw 141 and a second positive feedback screw 142. The first positive and negative screw rod 141 is inserted into the seventh through hole and the eighth through hole through two positive and negative rotation T-shaped nuts. The second positive and negative screw rod 142 is inserted into the ninth through hole and the tenth through hole through two positive and negative T-shaped nuts, and the second positive and negative screw rod 142 is parallel to the first positive and negative screw rod 141.

Specifically, two sections of threads with different rotation directions are provided on two sides of the first front and back screw rod 141, and the middle part can be left free to be tapped to form a transition region. The first front and back screw rods 141 penetrate out of the first lower connecting plate 115 and the second lower connecting plate 116, and the first lower connecting plate 115 and the second lower connecting plate 116 are provided with holes and a T-shaped nut is arranged in the holes, so that the first lower connecting plate 115 and the second lower connecting plate 116 can move relatively or oppositely. The relative or opposite movement of the two side guards 12 can drive the two side guards 12 arranged thereon to move relative or opposite to each other, thereby adjusting the distance between the two side guards 12. Similarly, two sides of the second positive feedback screw 142 are two threads with different screw directions, and the middle part can be free to be tapped to form a transition area. The second positive and negative screw rod 142 penetrates through the first upper connecting plate 113 and the second upper connecting plate 114, holes are formed in the first upper connecting plate 113 and the second upper connecting plate 114, and a T-shaped nut is arranged in each hole, so that the first upper connecting plate 113 and the second upper connecting plate 114 can move relatively or oppositely. The two side guards 12 are driven to move relatively or in opposite directions together, as are the first lower connecting plate 115 and the second lower connecting plate 116.

As shown in fig. 1, the guard plate adjusting device 14 preferably further includes a transmission device 143, and the transmission device 143 is mounted to the same side end of the first and second positive and negative screw rods 141 and 142 such that the first and second positive and negative screw rods 141 and 142 are rotated in synchronization.

In particular, the transmission 143 may preferably be a synchronous conveyor belt. In practical devices, the height of the second forward and reverse screw rod 142 is relatively high, and is not easy to adjust. By adopting the scheme of the application, the first positive and negative screw rod 141 and the second positive and negative screw rod 142 can synchronously rotate by adjusting the first positive and negative screw rod 141, so that the method is convenient and quick.

As shown in fig. 1, the guard adjustment device 14 preferably further comprises a guard turning handle 144, which guard turning handle 144 is arranged at the end of the first counter screw 141 remote from the transmission device 143 for manually adjusting the distance between the first support profile 111 and the second support profile 112.

Specifically, the guard rotating handle 144 may be manually adjusted to rotate the first forward and reverse screw 141. Since the first and second positive and negative screw rods 141 and 142 are synchronously adjusted, the adjustment of the entire bin rack 11 is achieved. Thus, the two side guards 12 mounted thereon are also adjusted accordingly.

As shown in fig. 1, the skirt 12 preferably includes a first skirt 121 and a second skirt 122. The first side guard 121 is connected to the first support profile 111 and the first lower web 115. The second side guard 122 is connected to the second support profile 112 and the second lower connecting plate 116.

Specifically, the side shields 12 may be two. The side guards 12 are slightly wider overall than the main board. The side of the first side guard 121 is fixedly connected to the first support profile 111. The bottom of the first side guard 121 is fixedly connected to the first lower connecting plate 115. Similarly, the side portion of the second side guard 122 is fixedly secured to the second support profile 112. The bottom of the second side guard 122 is fixedly connected to the second lower connecting plate 116.

As shown in fig. 1, preferably, an eleventh through hole is further formed between the fourth through hole and the seventh through hole of the first lower connecting plate 115, a twelfth through hole is further formed between the sixth through hole and the eighth through hole of the second lower connecting plate 116, and the conveying adjustment device 15 includes a conveying adjustment positive and negative screw rod 151, and the conveying adjustment positive and negative screw rod 151 is inserted into the eleventh through hole and the twelfth through hole through two positive and negative T-shaped nuts.

Specifically, two sections of threads with different rotation directions are arranged on two sides of the conveying adjustment positive and negative screw rod 151, and the middle part can be free from tapping to form a transition area. The conveying and adjusting positive and negative screw rod 151 adjusts the conveying and accommodating device 16 through positive and negative rotation T-shaped nuts.

As shown in fig. 1, the delivery adjustment device 15 preferably further includes a delivery rotation handle 152, and the delivery rotation handle 152 is disposed at one end of the delivery adjustment positive and negative screw 151 for manually adjusting the delivery holding device 16.

In particular, the transport turning handle 152 functions similarly to the apron turning handle 144 described above. The function is to manually rotate and convey the regulating front and back screw rod 151.

As shown in fig. 1, the transport pod 16 preferably includes a first transport pod 161 and a second transport pod 162. The first conveying device 161 is sleeved on the first guide shaft 131 and the second guide shaft 132 through two circular shaft sleeves respectively, and is sleeved on the conveying adjustment positive and negative screw rod 151 through positive and negative rotation T-shaped nuts. The second conveying device 162 is sleeved on the first guide shaft 131 and the second guide shaft 132 through two circular shaft sleeves respectively, and is sleeved on the conveying adjustment positive and negative screw rod 151 through positive and negative rotation T-shaped nuts.

Specifically, the shape and the size direction of the first and second conveying means 161 and 162 may be the same and symmetrically disposed. Under the action of the conveying and adjusting positive and negative screw rods 151, the two can move relatively or oppositely.

In addition, the upper part of the main board stock bin 1 is also provided with an upper blocking rod for upper blocking of the main board.

The first side guard plate 121 and the second side guard plate 122 of the main paperboard bin 1 are integrated, and have no gap in the middle, so that the side guard plates 12 can play a role in protecting when cartons of different types are processed, and the condition of leaking main paperboard can not occur. The guard plate adjusting device 14 adjusts the first guard plate 121 and the second guard plate 122 in a way of positive and negative screw rods and T-nuts so that the distance between the first guard plate 121 and the second guard plate 122 can be manually changed to adapt to main paperboards with different sizes. The conveying and adjusting device 15 also adjusts the conveying and accommodating device 16 in a mode of positive and negative screw rods and T-shaped nuts, so that the distance between the first conveying and accommodating device 161 and the second conveying and accommodating device 162 can be manually changed to adapt to conveying work of main paperboards with different sizes. The bin rack 11 is adjusted by sleeving the guide device 13, so that a positioning plane does not need to be processed, and the cost is reduced.

As shown in fig. 2 to 5, the conveyor 2 preferably includes a conveyor frame 21, a linear drive mechanism 22, a pusher 23, and an extension bar 24. The conveyor frame 21 comprises a molding station 211 and a conveying station 212 for conveying materials to the molding station 211, a linear driving mechanism 22 is arranged on the conveyor frame 21, an initial position of a pushing piece 23 is located on the conveying station 212 of the conveyor frame 21, one end of an extension rod 24 is connected with the pushing piece 23, the other end of the extension rod is connected with the linear driving mechanism 22 and used for extending the pushing stroke of the pushing piece 23, and the linear driving mechanism 22 drives the extension rod 24 and the pushing piece 23 to linearly reciprocate in the conveyor frame 21 so as to push materials with different sizes to enter the molding station 211.

In particular, the conveyor 2 conveys the main cardboard taken out from the end of the main cardboard stock 1 and placed to the conveying station 212 to the carton forming master 7, i.e. the molding station 211. The linear drive mechanism 22 may act on the extension bar 24 with the pusher 23 at the end of the extension bar 24 such that after the main cardboard has been placed in the transfer station 212, the pusher 23 begins to push the main cardboard along the length of the conveyor frame 21 as desired until the embossing station 211.

As shown in fig. 2 to 5, the linear driving mechanism 22 preferably includes a conveying mechanism 221 and a servo motor 222. The conveying mechanism 221 includes a conveying rod 2211 connected to the conveyor frame 21, a driving wheel 2212 mounted on one side of the conveying rod 2211, a driven wheel 2213 mounted on the other side of the conveying rod 2211, and a belt 2214 interposed between the driving wheel 2212 and the driven wheel 2213 and connected to the extension rod 24. The servo motor 222 is mounted on the transmission rod 2211, and an output shaft of the servo motor 222 is connected to the driving wheel 2212.

In particular, the linear drive mechanism 22 extends entirely from the bottom of the main cardboard silo 1 to the carton forming master 7. The transport mechanism 221 is generally an elongated structure. The transfer rod 2211 is an elongated rod. One end of the transfer rod 2211 is positioned at the lower portion of the main paperboard bin 1. There is a driving wheel 2212, and the driving wheel 2212 is connected with an output shaft of the servo motor 222. The other end of the conveying rod 2211, which is close to the carton forming female die 7, is fixedly connected with a driven wheel 2213. A belt 2214 is provided on the driving pulley 2212 and the driven pulley 2213. The belt 2214 is a synchronous belt. The transmission rod 2211 on the driven wheel 2213 side is also connected to an extension rod 24, and the other side of the extension rod 24 is connected to the pushing member 23. Thus, the pushing member 23 can reciprocate along the length direction of the transmission rod 2211 under the driving of the servo motor 222. Initially, the pusher 23 is located behind the transfer station 212 so as to push the main cardboard towards the moulding station 211 after it has been put in place.

As shown in fig. 2 to 5, the belt 2214 is preferably a synchronous belt, the linear driving mechanism 22 further comprises an adaptor 223, the adaptor 223 comprises a belt connecting portion 2231 and an extension rod connecting portion 2232 connected to the belt connecting portion 2231, wherein the extension rod 24 is connected to the extension rod connecting portion 2232, a limit groove 22311 is formed in the belt connecting portion 2231, and limit teeth are embedded in the wall of the limit groove 22311 and meshed with the belt 2214.

Specifically, the timing belt is a toothed belt. The belt connecting portion 2231 may be a vertical plate, in which a limit groove 22311 is formed, the limit groove 22311 just blocks the belt 2214, and then a limit tooth is further disposed in the limit groove 22311, and the adapter 223 and the belt 2214 move together through the engagement of the limit tooth and the tooth of the synchronous belt.

As shown in fig. 2 to 5, the transfer device 2 further preferably comprises a sliding mechanism 25, the sliding mechanism 25 comprising a sliding rail 251 and a sliding block 252 slidingly connected to the sliding rail 251, wherein the sliding block 252 is connected to the adapter 223, and the sliding rail 251 is connected to the transfer rod 2211 and parallel to the belt 2214.

Specifically, the slip mechanism 25 reduces the wobbling of the pusher 23 during pushing and increases the stability during material pushing. The slide rail 251 is fixed to the transfer rod 2211, for example, by bolting together. The slider 252 is connected to the adapter 223, and the adapter 223 is disposed on the belt 2214. In one aspect, the adapter 223 and the slide 252 may move with the belt 2214. The slider 252 must move along the sliding rail 251 so that the adapter 223 is prevented from shaking due to the shaking of the belt 2214.

As shown in fig. 2 to 5, the pusher 23 preferably includes a push plate 231, a bearing plate 232, and a dodge flap 233. The push plate 231 is connected to one end of the extension rod 24 away from the linear driving mechanism 22, the bearing plate 232 is connected to the bottom of the push plate 231, and the avoidance baffle 233 is connected to the top of the push plate 231, wherein an obtuse angle is formed between the avoidance baffle 233 and the push plate 231.

Specifically, the push plate 231, the bearing plate 232, and the avoidance flap 233 combine to form a tiger-mouth structure. When the material enters the molding station 211, the supporting plate 232 supports the end of the material to enable the end of the material to be in a suspended state, and at this time, the supporting plate 232 can support the end of the material to ensure the stability of the material. When the material enters the molding station 211 for molding, the avoidance baffle 233 can form a gap with the upper surface of the material, so as to provide an avoidance space, and the material can be smoothly separated from the pushing piece 23 in the molding process.

As shown in fig. 2 to 5, the conveyor frame 21 preferably comprises a first conveyor rail 213 and a second conveyor rail 214 parallel to each other, and the conveyor 2 further comprises two support assemblies 26, each support assembly 26 being connected to the first conveyor rail 213 and the second conveyor rail 214, respectively, for supporting the material.

Specifically, the first and second transfer rails 213 and 214 are parallel to the transfer rod 2211. The support assembly 26 is an elongated plate. Which are mounted inside the first and second transfer rails 213 and 214. A material, such as a main cardboard, may be placed on the support assembly 26.

As shown in fig. 2 to 5, the transfer device 2 preferably further comprises a carrying assembly 27, which carrying assembly 27 comprises four connection plates 271 and two carrying bars 272. Every two connecting plates 271 are arranged on the first conveying guide rail 213 and the second conveying guide rail 214 at intervals and symmetrically, and each connecting plate 271 is provided with a through hole for a bearing rod. Each carrier bar 272 is inserted onto the first and second transfer rails 213, 214 through the corresponding carrier bar through-hole to support the two support assemblies 26 and the linear drive mechanism 22.

Specifically, two connection plates 271 are fixedly provided to the lower side of the first conveying rail 213. The other two connection plates 271 are fixedly provided to the lower side of the second transfer rail 214. And the two connection plates 271 located at the lower side of the first transfer rail 213 and the two connection plates 271 located at the lower side of the second transfer rail 214 are symmetrical. Each of the carrier bars 272 passes through corresponding carrier bar through holes in the first and second transfer rails 213 and 214 through the shaft sleeve, so that the first and second transfer rails 213 and 214 can slide along the carrier bars 272. Meanwhile, the carrier bar 272 also functions as the support assembly 26, the first transfer rail 213, the second transfer rail 214, and the linear driving mechanism 22 supported thereon.

As shown in fig. 2 to 5, each connecting plate 271 is preferably further provided with a frame front and back screw through hole, and the conveying device 2 further comprises a frame adjusting device 28. The rack adjustment device 28 includes two rack forward and reverse lead screws 281, a rack transmission 282, and a rack adjustment handle 283. Each frame positive and negative screw rod 281 is inserted into two corresponding frame positive and negative screw rod through holes on the connecting plate 271 through two positive and negative T-shaped nuts, and a frame transmission device 282 is connected with the same side end parts of the two frame positive and negative screw rods 281 and is used for driving the two frame positive and negative screw rods 281 to synchronously move. The rack adjusting handle 283 is disposed at one end of one of the rack front and back screws 281 for manually adjusting the distance between the first and second transfer rails 213 and 214.

Specifically, the frame adjustment device 28 is also adjusted by a positive and negative lead screw in cooperation with a T-nut. The frame front and back screw 281 passes through the connecting plate 271. The two frame front and back screws 281 are parallel to each other and also parallel to the carrier rod 272. When the first conveying guide rail 213 and the second conveying guide rail 214 need to be adjusted to adapt to the sizes of the materials such as the main boards with different sizes, the rack adjusting handle 283 is manually rotated, the rack adjusting handle 283 is rotated to drive the rack front and back screw 281 connected with the rack adjusting handle 283 to rotate, and then the rack transmission device 282 drives the other rack front and back screw 281 to synchronously rotate. This causes the first and second transfer rails 213, 214 to move relative to or toward each other. The frame transmission 282 is similar in construction to the transmission 143 and may preferably be a timing belt.

As shown in fig. 2 to 5, the conveying device 2 preferably further comprises two positioning stoppers 29, and the two positioning stoppers 29 are symmetrically arranged on the first conveying rail 213 and the second conveying rail 214 at both sides of the molding station 211, so as to slide along the first conveying rail 213 and the second conveying rail 214 and be locked and fixed after sliding in place.

Specifically, the positioning stoppers 29 extend between the first conveying rail 213 and the second conveying rail 214, and the position of the material is defined by the two positioning stoppers 29 when pushing the material. The position of the positioning stops 29 is adjustable to accommodate different sizes of material.

The conveying device 2 of the application can increase the stroke of the pushing piece 23 by adding the extension rod 24 at the end part of the conveying rod 2211, thereby being suitable for pushing materials with different sizes, such as a main paperboard, to a proper position for punching without integrally adjusting the position of the conveying device 2. The distance between the first conveying rail 213 and the second conveying rail 214 is adjusted by the rack adjusting device 28 to accommodate the placement of materials with different sizes, such as main paper boards, without changing the shape.

As shown in fig. 6 to 8, the pick-and-place device 3 preferably includes a power mechanism 31, an extraction device 32, and a link mechanism 33. The power mechanism 31 is arranged on a frame, the extracting device 32 is used for extracting and releasing materials, the connecting rod mechanism 33 comprises a swing arm 331, a sliding seat 332 and a sliding rod device 333, one end of the swing arm 331 is rotatably connected to the frame through a first rotating shaft 334 and connected with the power mechanism 31, the sliding seat 332 is rotatably connected to the frame, one end of the sliding rod device 333 is rotatably connected to the other end of the swing arm 331 through a second rotating shaft 335, and the other end of the sliding rod device is arranged on the extracting device 32 after passing through the sliding seat 332.

Specifically, the power mechanism 31 may be a servo motor 222 or the like. The extraction device 32 is located at the forefront of the entire pick-and-place device 3, next to the main cardboard silo 1, and is capable of extracting and releasing the main cardboard in the main cardboard silo 1to a suitable location, such as a transport station 212. The link mechanism 33 is an operation execution means of the entire pick-and-place apparatus 3. The swing arm 331 is a long arm, and one end of the swing arm 331 is connected to the output shaft of the servo motor 222 through the first rotation shaft 334, so that the swing arm 331 is driven by the servo motor 222 to rotate around the first rotation shaft 334. The body of the slide 332 is hinged to the frame, and the slide 332 has a through hole therein for allowing the slide bar device 333 to pass through. And one end of the slide bar device 333 is rotatably connected to one end of the swing arm 331 far away from the first rotation shaft 334 through the second rotation shaft 335. That is to say the slide bar arrangement 333 is rotatable about the second rotation axis 335. The other end of the slide bar means 333 is fixed to the extraction means 32. Thus, the servo motor 222 is turned on to drive the first rotating shaft 334 to rotate, and the first rotating shaft 334 drives the swing arm 331 thereon to swing. The slide bar device 333 connected to the swing arm 331 swings along with sliding in the slide 332, so as to drive the extracting device 32 to extract the main board and release the main board to the conveying station 212.

As shown in fig. 6 to 8, preferably, the extraction device 32 comprises a carrying member 321 and a gripping device 322. The carrier 321 is connected to the other end of the slide bar arrangement 333. The gripping device 322 is disposed on the carrying member 321 and is used for gripping the material. The gripping device 322 is at least one vacuum chuck or at least one pneumatic gripper.

In particular, the carrier 321 may be a frame made up of horizontal bars and vertical bars. Or may be a single plate. The gripping means 322 may be one or more. The plurality of gripping means 322 is preferably distributed uniformly over the carrier member 321. The gripping device 322 may be a vacuum chuck to draw the main cardboard, or a pneumatic gripper to grip the main cardboard. The power source is from a pneumatic source.

As shown in fig. 6 to 8, the pick-and-place device 3 preferably further comprises a disturbing line 34, which disturbing line 34 comprises at least one branch line 341, a first transfer 342, a second transfer 343, a first main line pipe 344, a second main line pipe 345 and a third main line pipe 346. At least one branch line pipe 341 is provided on the carrying member 321 and connected to at least one vacuum chuck or at least one pneumatic jaw one by one, a first transfer device 342 is fixedly provided on the frame and has a first axis collinear with the central axis of the first rotation shaft 334, a second transfer device 343 is fixedly provided on the swing arm 331 or the second rotation shaft 335 and has a second axis collinear with the central axis of the second rotation shaft 335, a first main line pipe 344 is connected at one end to the vacuum pumping device and at the other end to the first transfer device 342, a second main line pipe 345 is connected at one end to the first transfer device 342 and at the other end to the second transfer device 343, and a third main line pipe 346 is connected at one end to the second transfer device 343 and at the other end to the respective vacuum chuck through at least one branch line pipe 341. Wherein the first relay 342 is capable of communicating the first stem pipe 344 with the second stem pipe 345 and allowing rotational movement of the second stem pipe 345 about a first axis relative to the first stem pipe 344, and the second relay 343 is capable of communicating the third stem pipe 346 with the second stem pipe 345 and allowing rotational movement of the second stem pipe 345 about a second axis relative to the third stem pipe 346.

Specifically, the second trunk pipe 345 can synchronously rotate along the swing arm 331 with the aid of the first repeater 342 and the second repeater 343, thereby ensuring that the entire disturbance pipeline 34 does not interfere with the movement of the linkage 33. In a preferred embodiment, the first transfer 342 comprises a swivel elbow and an elbow, wherein the swivel elbow comprises a fixed tube portion secured to the frame by brackets 347 and disposed along the first axis and a swivel tube portion in communication with the fixed tube portion and rotatable about the first axis, the swivel tube portion being adapted to connect to the second stem conduit 345, and the fixed tube portion being adapted to connect to the first stem conduit 344 by the elbow. In this manner, the combination of the swivel elbow and the elbow may communicate the first stem pipe 344 and the second stem pipe 345 and allow rotational movement of the second stem pipe 345 relative to the first stem pipe 344 about the first axis.

In a preferred embodiment, the second transfer 343 comprises a swivel elbow and an adapter, wherein the swivel elbow also comprises a stationary tube portion fixedly disposed on the swing arm 331 or the second rotary shaft 335 via the adapter and disposed along the second axis, and a rotating tube portion in communication with the stationary tube portion and rotatable about the second axis. The rotary pipe portion is used for connecting with the second trunk pipe 345, and the fixed pipe portion is communicated with the third trunk pipe 346 through the adapter. In this way, the combination of the swivel elbow and adapter may communicate the second stem conduit 345 with the third stem conduit 346 and allow rotational movement of the second stem conduit 345 about the first axis relative to the first stem conduit 344.

As shown in fig. 6 to 8, it is preferable that the slide bar device 333 includes a slide bar 3331 and a first connection end plate 3332, and one end of the slide bar 3331 is rotatably connected to the other end of the swing arm 331 through a second rotation shaft 335. One end of the first connecting end plate 3332 is fixedly connected to the bearing member 321, and the other end of the first connecting end plate is fixedly connected to the other end of the sliding rod 3331, so as to enhance the connection strength between the sliding rod 3331 and the bearing member 321. The slide bar device 333 further comprises a reinforcing plate fixedly arranged on the bearing member 321 and fixedly connected with the slide bar 3331.

In particular, the slide bar means 333 is not just a single bar, and it is conceivable to add a first connecting end plate 3332 at the end connection thereof for the purpose of reinforcing the strength thereof. A reinforcing plate may also be welded along the length of the slide bar 3331 to increase strength.

As shown in fig. 6 to 8, the slide bar device 333 preferably includes a first slide bar 3333, a second slide bar 3334, and a second connection end plate 3335, one ends of the first slide bar 3333 and the second slide bar 3334 passing through the slide 332 and then being disposed on the bearing member 321. The second connection end plate 3335 is rotatably connected to the other end of the swing arm 331 through a second rotation shaft 335, and the other ends of the first slide bar 3333 and the second slide bar 3334 are disposed on the second connection end plate 3335.

Specifically, the slider 332 may have two through holes formed therein, the dimensions of which are adapted to the dimensions of the first slide bar 3333 and the second slide bar 3334, such that the first slide bar 3333 and the second slide bar 3334 can slide through the two through holes. The second connecting end plate 3335 is rotatably connected to the swing arm 331 through a second rotating shaft 335, and meanwhile, the other ends of the first sliding rod 3333 and the second sliding rod 3334 are fixedly connected to the second connecting end plate 3335, and the first sliding rod 3333 and the second sliding rod 3334 are arranged in parallel. The arrangement of the two slide bars 3331 thus both swings as a unit and increases strength.

As shown in fig. 6 to 8, preferably, the angle between the center line of the swing arm 331 and the center line of the slide bar device 333 in the length direction at the initial position is in the range of 85 ° to 105 °.

Specifically, an angular range of 85 ° to 105 ° enables the extraction device 32 to move approximately straight when extracting the main board from the main board magazine 1.

As shown in fig. 6 to 8, the power mechanism 31 preferably includes a motor, an engine, a swing cylinder, or an assembly mainly composed of a cylinder, a rack, and a gear for driving the swing arm 331 to rotate.

Specifically, the power mechanism 31 mainly provides rotation to the swing arm 331, and thus, the power mechanism 31 is diverse in form.

The picking and placing device 3 has the advantages of compact structure, small load inertia force and good mechanism rigidity, and is suitable for picking and placing materials at high speed. And the initial material taking position, the included angle range between the central line of the swing arm 331 and the central line of the slide bar device 333 along the length direction is 85-105 degrees, and the main paperboard is taken out from the paperboard storage bin along the direction of the perpendicular of the material storage bin material taking plane along the approximately linear motion track. The double slide bars and the reinforcing plates are beneficial to reinforcing the strength of the whole picking and placing device 3 and preventing the slide bars from being broken in the high-speed rotation process. The swing arm 331 of the pick-and-place device 3 is connected to the extracting device 32 by a slide bar device 333, and the slide bar device 333 passes through the slide base 332 and slides along the slide base 332. The size of the swing arm 331 is irrelevant to the size of the main paper board, and the swing arm 331 rotates to prevent the inertial force of the slide bar 3331 from being too large, so that the slide bar 3331 is not damaged. The combination of the slide bar 3331 and the slide base 332 can continuously restrict the overturning range and the overturning angle of the bearing member 321, so that the bearing member 321 can grasp materials (such as a paperboard or a paper box), the output torque of the power mechanism 31 can be effectively reduced, vibration, impact, abrasion and the like generated by the picking and placing device 3 during operation can be reduced, and the picking and placing device 3 can be guaranteed to better carry large-size materials.

As shown in fig. 10 to 12, the side board stock bin 4 preferably includes a side board stock bin frame 41, a side board side guard 42, a platen device 43, and a paper pallet 44. The side paper board storage bin 41 is arranged on the frame, the side paper board side guard plate 42 is connected to the side paper board storage bin 41 and used for protecting the side face of the side paper board, the pressing plate device 43 is arranged on the side paper board storage bin 41 and used for compacting the top of the side paper board, and the paper supporting plate 44 is arranged at the bottom of the side paper board side guard plate 42 and used for supporting the side paper board.

Specifically, the side board stock bin 4 is provided on the upper side of the carton forming master model 7. The side cardboard is placed in the silo without transport and thus differs from the main cardboard silo 1 in that there is no transport containing means 16. The side cardboard silo frame 41 is preferably two side plates in the present application. The side guards 42 are an integral, approximately rectangular parallelepiped plate that is greater in length and height than the side guards to protect the side guards from sliding out sideways. The pressing means 43 presses the side sheet by gravity. The paper pallet 44 is sized larger than the side paper boards to be able to hold the side paper boards.

As shown in fig. 10 to 12, preferably, there are two side cardboard side guard plates 42, and both side cardboard side guard plates 42 are disposed on the side of the side cardboard stock bin 41 away from the cardboard box male mold 6.

Specifically, the three-sheet type carton forming machine has to bond the side sheets on both sides of the main sheet, so that the side sheet side guards 42 are optimally provided in two.

As shown in fig. 10 to 12, the side board cover 42 is preferably of a unitary board type structure, and the width of the side board side cover 42 is greater than the width of the side board.

Specifically, the side guards 42 have a width that is greater than the width of the side guards so that the side guards do not slide out of the side guard bins 4 from the sides.

As shown in fig. 10 to 12, the platen device 43 preferably includes a platen slide 431, a platen slider 432, and a platen 433. The platen sliding rod 431 is fixedly connected to the side paperboard bin frame 41 and is located at the middle position of the two side paperboard side guard plates 42, the platen sliding block 432 is slidably arranged on the platen sliding rod 431, one end of the platen 433 is arranged on the platen sliding block 432 and moves along the platen sliding rod 431 along with the platen sliding block 432, and the other end extends to the upper portion of the side paperboard to press against the side paperboard under the action of gravity.

Specifically, a platen slide 431 is fixed to the side-board magazine frame 41 in the depth direction of the side-board magazine 4. The platen slide 431 is located at an intermediate position of the side board stock bin rack 41. The two sides of the platen sliding rod 431 are provided with sliding rails, the platen sliding block 432 is clamped into the sliding rails, and a fixing device is not arranged in the vertical direction, so that the platen sliding block 432 can move along the platen sliding rod 431 under the action of gravity. The side board pressing slider 432 moves down each time one side board is taken out, and presses the remaining side boards.

As shown in fig. 10 to 12, the side board side guard 42 is preferably provided with a long groove 421 at the bottom thereof, and the paper pallet 44 includes a pallet 441 and a baffle 442. The supporting plate 441 is fixedly connected to the bottom of the side board side guard 42, and extends into the inner side of the side board storage bin 4 to support the side board. The baffle 442 is slidably disposed at the bottom of the side guard 42, for stopping the forward tilting of the side paper and limiting the falling position of the side paper.

Specifically, the bracket 441 may be welded or bolted to the bottom of the side liner 42. The blade 441 is preferably a long slat. The baffle 442 is preferably an L-shaped plate, and the end of the horizontal plate is clamped into the elongated slot 421 and can slide along the elongated slot 421. The length of the vertical plate is preferably higher than the thickness of 10 side plates. So that the side cardboard can be stopped well while saving material.

As shown in fig. 10 to 12, the side board magazine 4 preferably further includes a side board adjusting device connecting the two side board side boards 42 for adjusting the distance of the two side board side boards 42.

Specifically, the side guard adjustment device is similar in structure and function to the guard adjustment device 14. Different sized side guards are placed by adjusting the distance between the two side guard plates 42.

As shown in fig. 10 to 12, preferably, two side guard plates 42 are provided with a shaft sleeve on one side facing the side guard plate bin frame 41, the side guard plate bin frame 41 is provided with a side guard plate through hole, and the side guard plate adjusting device comprises a side guard plate positive and negative screw rod and a side guard plate adjusting handle. The front and back screw rods of the side guard plates are connected to the side paper board storage bin frame 41 through bearing blocks, and one ends of the front and back screw rods penetrate through the side paper board through holes and are inserted into the two shaft sleeves through positive and negative rotation T-shaped nuts. The side paper board adjusting handle is arranged at one end of the side paper board positive and negative screw rod penetrating out of the side paper board through hole and used for rotating the side paper board positive and negative screw rod so as to drive the two side paper board side paper boards 42 to move relatively or oppositely.

Specifically, the relative or opposite movement of the two side guards 42 is achieved by adjusting the side guard positive and negative lead screws by the side guard adjustment handles in the same manner as described above.

The side paperboard bin 4 adopts the pressing plate device 43 to compact the side paperboard by gravity, so that the compacting effect is good and the energy is saved. The platen device 43 cooperates with the side sheet side guard 42 and the sheet pallet 44 to prevent displacement of the side sheet. The side board bin 4 also adopts a side board adjusting device, and two side board side boards 42 are opposite or opposite to each other through arranging a side board positive and negative screw rod, a side board adjusting handle and a positive and negative rotation T-shaped nut, so that the side board bin can adapt to the side boards 12 with different specifications.

As shown in fig. 10-11, the carton male die 6 preferably includes a male die drive 61 and a male die module 62. The male die driving device 61 is arranged on the frame, and the male die module 62 is arranged on the male die driving device 61 to reciprocate up and down under the drive of the male die driving device 61.

In particular, the structure of the carton male mould 6 is simple. The male die driving device 61 is a power device for providing power for the up-and-down movement of the male die module 62. The male mold module 62 has a rectangular frame structure with various specifications to accommodate different sizes of boxes. When the box or size changes, the male mold module 62 needs to be replaced.

As shown in fig. 10 to 11, the male mold module 62 preferably includes a male mold forming plate 621, two male mold protecting plates 622, and a drive connection plate 623. The two male mold guard plates 622 are symmetrically arranged on two sides of the male mold Cheng Xingban 621 opposite to the side paperboard storage bin 4. One end of the driving connecting plate 623 is fixedly connected with the male mold forming plate 621, and the other end is connected with the male mold driving device 61.

Specifically, the male die module 62 is a component for stamping. The male mold Cheng Xingban has a size matching the box to be formed. Two male mold cover plates 622 are vertically connected to both sides of the male mold Cheng Xingban to form a hollow and open-topped rectangular parallelepiped structure. A driving connection plate 623 is provided in the middle of the male molding plate 621, and the male driving device 61 is connected to the driving connection plate 623 to drive the entire male mold module 62 to move up and down.

The male die block 62 structure of the present application receives the bill. When the carton forming female die 7 forms cartons of different specifications, the replacement can be completed rapidly.

As shown in fig. 9 to 11, the three-sheet type carton forming machine preferably further comprises two side-board bending mechanisms 9, and the two side-board bending mechanisms 9 are used for bending the side boards after the side boards taken out by the side-board taking and placing device 5 are pushed to the carton male mold 6.

Specifically, two side board bending mechanisms 9 are respectively located at two sides of the side board picking and placing device 5, and the side board bending mechanisms 9 cooperate with a male mold protection plate 622 of the male mold 6 of the carton to complete bending work of the side board.

As shown in fig. 9 to 11, the side board bending mechanism 9 preferably includes a side board bending power device 91 and a side board bending plate 92. The side paper board bending power device 91 is arranged on the frame, and the side paper board bending plate 92 is connected with the side paper board bending power device 91 so as to move towards the male mold guard 622 under the drive of the side paper board bending power device 91 to bend the side paper board.

Specifically, the side board bending power device 91 may be an air cylinder or a linear motor. The side cardboard bending plate 92 is a vertical plate. When the side board bending plates 92 of the two side board bending mechanisms 9 travel to the vicinity of the male mold plate 622, the distance between the two side board bending plates 92 is slightly larger than the width of the male mold plate 622 to enable bending of the side board along the crease for standby.

The side paperboard bending mechanism 9 is mainly used for bending the side paperboard in advance by matching with the male die module 62 so as to facilitate the subsequent forming work of the whole paper box by the paper box forming female die 7.

As shown in fig. 13 to 21, the carton forming master mold 7 preferably includes a base frame 71, a CD-direction carriage 72, corner mold fixtures 73, and an adjusting device 74. The CD-direction carriage 72 is movably provided to the base frame 71, a corner mold fixing member 73 is provided to the CD-direction carriage 72 for mounting a molding mold part, and an adjusting device 74 is provided to the base frame 71, connected to the CD-direction carriage 72, and for adjusting the position of the CD-direction carriage 72.

Specifically, the base frame 71 forms the bottom support of the carton forming master 7 to support the other components of the carton forming master 7. The main body of the base frame 71 is a frame structure composed of a plurality of bars and plates, and may be a square frame, a rectangular frame, or the like, and preferably, the base frame 71 is a square frame. The base frame 71 is used for supporting the carton forming female die 7 and can play a role of adjusting the position of the carton forming female die 7. The main body of the CD-direction carriage 72 is a rectangular parallelepiped frame, and the CD-direction carriage 72 is movable along the base frame 71. Corner mold fixtures 73 are for mounting a molding mold and are secured to CD-side carriage 72 for movement therewith to accommodate different mold requirements. The adjusting device 74 can conveniently adjust the position of the CD-direction sliding frame 72 on the base frame 71, so that the adjustment of cartons with different sizes and different types of cartons in the same box type can be conveniently and quickly realized.

As shown in fig. 13, the base frame 71 preferably includes a first CD guide 711, a second CD guide 712, a first MD guide 713, a second MD guide 714, four connection seats 715, and four adjustment units 716. The first CD guide bar 711 is parallel to the second CD guide bar 712, the first MD guide bar 713 is parallel to the second MD guide bar 714 and perpendicular to the first CD guide bar 711, each connection pad 715 includes a first connection pad through hole 7151 and a fixing portion 7153 perpendicular to the first through hole axis, each adjustment unit 716 is used for adjusting the position of the base frame 71, wherein both ends of the first CD guide bar 711 and the second CD guide bar 712 respectively pass through the first connection pad through holes 7151 of the two connection pads 715 and each end is connected to one connection pad 715 through one adjustment unit 716, and both ends of the first MD guide bar 713 and the second MD guide bar 714 respectively connect the fixing portions 7153 of one connection pad 715.

Specifically, the first CD guide bar 711, the second CD guide bar 712, the first MD guide bar 713, and the second MD guide bar 714 are elongated bars, which are preferably cylindrical bars of the same size. The first and second CD guides 711 and 712 are perpendicular to the first and second MD guides 713 and 714, respectively. The first CD guide 711, the first MD guide 713, the second CD guide 712, and the second MD guide 714 are connected end-to-end to four connection pads 715. Thus, the base frame 71 forms a square frame structure. The connection block 715 is a plate-like structure. The front face of the plate is wide and the sides are narrow. The front surface of the plate is provided with a first connecting seat through hole 7151 and a side surface is fixedly connected with a fixing part 7153. The adjustment unit 716 is mounted to the frame and is capable of adjusting the position of the base frame 71 relative to other components.

As shown in fig. 14, the CD-directed carriage 72 preferably includes two CD-directed carriage end plates 721 and two CD-directed carriage guide bars 722. Each CD-directed carriage end plate 721 includes a CD-directed guide sleeve 723, and two CD-directed carriage guide rods 722 are respectively connected to the CD-directed carriage end plates 721, wherein the CD-directed carriage 72 is respectively sleeved on the first CD guide rod 711 and the second CD-directed guide rod 712 through the CD-directed guide sleeves 723 at both ends so as to be capable of sliding along the first CD guide rod 711 and the second CD-directed guide rod 712.

Specifically, the CD-direction carriage end plate 721 may be two and may have a plate shape, the CD-direction guide sleeve 723 may have a prismatic shape as a whole, a through hole is opened at a center thereof, and the CD-direction guide sleeve 723 is fixedly connected to the CD-direction carriage end plate 721 and is sleeved on the first CD-direction guide 711 and the second CD-direction guide 712 so that the CD-direction carriage 72 can slide along the first CD-direction guide 711 and the second CD-direction guide 712. When both CD guide bars 711 and 712 are coupled to each other, the relative distance between the two CD guide bars can be adjusted because both can slide along the first CD guide bar 711 and the second CD guide bar 712.

The CD-direction carriage guide 722 may have a bar shape, or may have two bars in number. And two CD-directed carriage guides 722 are connected in parallel to the CD-directed carriage end plate 721. In particular, the two CD-directed carriage guides 722 may be parallel to the first MD guide 713 and the second MD guide 714 described above. Specifically, CD-directed carriage guide 722 is fixedly attached to CD-directed carriage end plate 721. The connection is usually by welding or bolting.

As shown in fig. 14, the corner mold fixture 73 preferably includes a first side plate 731 and a second side plate 732. The first side plate 731 is provided with two corner mold through holes 7311, and the two CD-direction carriage guide rods 722 are respectively inserted into the two corner mold through holes 7311 through shaft sleeves. The second side plate 732 is vertically connected to the first side plate 731. Two CD-directed carriages 72 are provided, and two corner mold fixing members 73 are symmetrically arranged on each CD-directed carriage 72, wherein the first side plates 731 of the two corner mold fixing members 73 on the same CD-directed carriage 72 are oppositely arranged, and the second side plates 732 of the two adjacent corner mold fixing members 73 on different CD-directed carriages 72 are oppositely arranged.

Specifically, the first side plate 731 and the second side plate 732 of the corner mold fixture 73 are vertically connected together. The first side plates 731 of the two corner mold fixtures 73 of the same CD-way carriage 72 are oppositely disposed. The second side plates 732 of the two corner mold fixtures 73 on the same side of the different CD-direction carriage 72 are oppositely disposed. The corner mold fixing member 73 is designed to be vertically arranged with two plates, so that the mounting position of the mold mounted on the corner mold fixing member can be conveniently adjusted, and the molding of various boxes can be realized.

As shown in fig. 13 to 21, preferably, one of the connecting seats 715 on the side of the second CD guide 712 is provided with a second connecting seat through hole 7152, the CD-oriented carriage end plate 721 further includes connecting lug portions 7211, each of the connecting lug portions 7211 is provided with a lug hole 72111, and the connecting lug portions 7211 are located on the CD-oriented guide sleeve 723 side of the CD-oriented carriage end plate 721. The adjustment device 74 includes a CD-direction reversing mechanism 741, the CD-direction reversing mechanism 741 including a first CD-direction reversing screw 7411, a second CD-direction reversing screw 7412, a CD-direction transmission 7413, and a CD-direction adjustment handle 7414. The first CD forward and reverse screw 7411 is connected to the connection base 715 on both sides of the first CD guide 711 through a bearing housing and is inserted into the two lug holes 72111 on the same side through a forward and reverse T-nut. The second CD forward and backward screw 7412 is connected to the connection base 715 on both sides of the second CD guide 712 through a bearing base, one end of which passes through the second connection base through hole 7152, and is inserted into two lug holes 72111 on the other side through a forward and backward T-shaped nut. The CD-direction transmission means 7413 is in transmission connection with the first CD-direction forward and reverse screw 7411 and the second CD-direction forward and reverse screw 7412 so that the first CD-direction forward and reverse screw 7411 and the second CD-direction forward and reverse screw 7412 rotate synchronously. The CD-direction adjusting handle 7414 is mounted to an end of the second CD-direction forward and reverse screw 7412 penetrating the connection holder 715 for adjusting the two CD-direction sliding frames 72 along the first CD-direction guide 711.

Specifically, CD directional reversing mechanism 741 is used to adjust the relative position of the two CD directional carriages 72 along the second CD direction of guide 712. The first CD forward and reverse lead screw 7411 and the second CD forward and reverse lead screw 7412 are parallel and perpendicular to the length direction of the CD forward carriage 72. A CD-direction transmission device 7413 is connected between the first CD-direction forward and reverse screw 7411 and the second CD-direction forward and reverse screw 7412, so as to realize synchronous rotation of the two. The CD-direction drive 7413 may be a synchronous belt, sprocket, or other mechanism that enables synchronous movement of the two. Preferably a synchronous belt. The first CD forward and reverse screw 7411 and the second CD forward and reverse screw 7412 are connected at the connecting seat 715 through bearings, and are realized by forward and reverse T-nuts with the CD forward and reverse sliding frames 72, so that the first CD forward and reverse screw 7411 and the second CD forward and reverse screw 7412 can rotate relative to the connecting seat 715 and drive the two CD forward and reverse sliding frames 72 to move relatively or oppositely. This adjustment enables the male carton mold 6 to be always positioned at the center of the molding space of the female carton molding mold 7.

In a preferred embodiment, when it is desired to adjust the relative position of the two CD-directed carriages 72 along the second CD-directed guide bar 712, rotation of the CD-directed adjustment handle 7414 rotates the second CD-directed counter-lead screw 7412, which in turn causes the first CD-directed counter-lead screw 7411 to rotate synchronously as the first CD-directed counter-lead screw 7411 and the second CD-directed counter-lead screw 7412 are connected by the CD-directed transmission 7413. The first CD forward and reverse screw 7411 and the second CD forward and reverse screw 7412 achieve adjustment of the relative positions of the two CD forward and reverse carriages 72 along the second CD toward the guide rod 712 by forward and reverse rotation of the T-nuts.

As shown in fig. 13 to 21, preferably, a front and back screw through hole 7312 is further formed between the two corner mold through holes 7311 of the first side plate 731, and the adjusting device 74 further includes an MD direction reversing mechanism 742, where the MD direction reversing mechanism 742 includes a sliding shaft 7421, two carriage front and back screws 7422, two pairs of first bevel gears 7423 and second bevel gears 7424, and an MD direction adjusting handle 7425. One end of the sliding shaft 7421 passes through and is rotatably connected to the connection seat 715 at one side of the first CD guide 711, and the sliding shaft 7421 is parallel to the first CD guide 711. Each carriage forward and reverse screw rod 7422 is inserted into two forward and reverse screw rod through holes 7312 on the same CD-directed carriage 72 through a pair of forward and reverse T-nuts, both ends of each CD-directed carriage 72 are rotatably connected to two CD-directed carriage end plates 721 on the same CD-directed carriage 72, and one side close to the sliding shaft 7421 passes through the CD-directed carriage end plates 721. Each first bevel gear 7423 is disposed on a carriage forward and reverse screw rod 7422 passing through the CD-direction carriage end plate 721, and each second bevel gear 7424 is disposed on the CD-direction carriage end plate 721 where the first bevel gear 7423 is disposed, so as to engage with the first bevel gear 7423, where each second bevel gear 7424 is provided with a bevel gear hole 74241.MD adjustment handle 7425 is mounted on slide shaft 7421 on connection block 715 passing through one side of first CD guide 711. Wherein, the sliding shaft 7421 is sequentially inserted into two bevel gear holes 74241 on the same side to drive the two sliding frame positive and negative screw rods 7422 to synchronously rotate when rotating.

Specifically, the MD directional reversing mechanism 742 is used to adjust the relative positions of the two CD directional carriages 72 along the direction of the first MD guide bars 713. The sliding shaft 7421 is perpendicular to the two carriage forward and reverse lead screws 7422. The first bevel gear 7423 and the second bevel gear 7424 are present in pairs, two pairs in total. MD adjustment handle 7425 is a manual rotation handle. The second bevel gear 7424 is provided with a bevel gear hole 74241 in the axial direction.

In a preferred embodiment, when it is desired to adjust the relative position of the two CD-directed carriages 72 in the direction of the first MD guide bars 713, the MD adjustment handle 7425 is first rotated, wherein forward and reverse rotation may effect the approaching and departing of the two CD-directed carriages 72. MD adjustment handle 7425 rotates slide shaft 7421. The second bevel gear 7424 rotates together with the sliding shaft 7421, the second bevel gear 7424 meshes with the first bevel gear 7423 and drives the first bevel gear 7423 to rotate, the first bevel gear 7423 is arranged on the carriage forward and reverse screw rod 7422, thereby driving the carriage forward and reverse screw rod 7422 to rotate, and the relative positions of the two CD-direction carriages 72 along the direction of the first MD guide 713 are adjusted by the forward and reverse T-nuts.

As shown in fig. 13 to 21, the carton forming master mold 7 preferably further includes an MD slide 75, the MD slide 75 includes two MD slide end plates 751 and two MD slide guide bars 752, each MD slide end plate 751 includes an MD guide sleeve 751, the two MD slide guide bars 752 are connected to the two MD slide end plates 751, and the MD slide 75 is respectively sleeved on the first MD guide bar 713 and the second MD guide bar 714 through the MD guide sleeves 751 at both ends so as to be slidable along the first MD guide bar 713 and the second MD guide bar 714.

Specifically, the two MD-direction slider guides 752 are parallel to each other and to the first CD guide 711. The two MD glide guides 752 are also elongated cylindrical bars. Various mold forming fixtures may be provided on MD glide 75 to provide a formed base structure.

As shown in fig. 13 to 21, preferably, the second side plate 732 of the corner mold fixture 73 is provided with two elongated holes 7321, and two MD sliding frames 75 are provided, and two MD sliding frame guide rods 752 of each MD sliding frame 75 pass through the elongated holes 7321 of the two symmetrical second side plates 732 to move synchronously with the corner mold fixture 73.

Specifically, the roles of the corner mold fixtures 73 and the MD slide 75 are identical. The two can set up the mould shaping mounting in all directions just in the cooperation, thereby can set up the carton of various models on the mould shaping mounting again. The MD glide guide 752 is a small clearance fit with the slot 7321.

As shown in fig. 13 to 21, each of the corner mold fixtures 73 preferably further includes a third side plate 733, the third side plate 733 being parallel to the first side plate 731 and sleeved on two CD-direction carriage guide bars 722 on the same side.

Specifically, to accommodate the structure of the carton forming master mold 7 of the three-piece carton forming machine, the corner mold fixing members 73 need to be provided with the third side plate 733 parallel to the first side plate 731 to accommodate the three-piece forming mold.

As shown in fig. 13 to 21, the female carton forming mold 7 preferably further includes four first glue pressing mechanisms 76 and four second glue pressing mechanisms 77, and the four first glue pressing mechanisms 76 are symmetrically disposed on the third side plate 733 respectively, for compacting glue dispensing between the side paper board and the main paper board along the direction of the first CD guide 711. The four second glue pressing mechanisms 77 are symmetrically disposed on the second side plate 732, respectively, and are used for compacting glue between the side paper plate and the main paper plate along the direction of the first MD guide rod 713.

Specifically, before glue pressing, a glue dispensing system is utilized to dispense glue to the corresponding position of the main paperboard. The dispensing system is an existing device in the art and will not be discussed further herein. The combination of four first and four second glue presses 76, 77 enables compaction of the four faces eight ends between the main and side sheets. So that no shifting occurs during compaction. Since the hot melt adhesive is used in dispensing, but the molding process is short, the main board and the side boards cannot be firmly adhered without compacting the side boards by the first and second adhesive pressing mechanisms 76 and 77. During compaction, the four first glue presses 76 and the four second glue presses 77 are located on the outside of the board, and the carton male mould 6 is located on the inside of the board, so that the co-operation can complete the compaction.

As shown in fig. 13 to 21, the first glue pressing mechanism 76 preferably includes a first glue pressing plate 761 and a first glue pressing cylinder 762. The first glue pressing cylinder 762 is arranged on the third side plate 733 and connected with the first glue pressing plate 761 through a piston so as to drive the first glue pressing plate 761 to reciprocate towards the forming area of the carton forming female die 7. The second glue pressing mechanism 77 includes a second glue pressing plate 771 and a second glue pressing cylinder 772. The second glue pressing cylinder 772 is arranged on the second side plate 732 and connected with the second glue pressing plate 771 through a piston, so as to drive the second glue pressing plate 771 to reciprocate along the moving direction perpendicular to the first glue pressing plate 761 towards the forming area of the carton forming female die 7.

Specifically, the moving direction of the first adhesive plate 761 is perpendicular to the third side plate 733. The direction of movement of the second glue plate 771 is perpendicular to the second side plate 732. It has been described above that the third side plate 733 and the second side plate 732 are perpendicular to each other, and thus the moving directions of the first and second adhesive pressing plates 761 and 771 are necessarily perpendicular to each other. Which is adapted to the corner position of the main board and the side board after bending.

As shown in fig. 13 to 21, the female carton forming mold 7 preferably further comprises a unidirectional mechanism 78, wherein the unidirectional mechanism 78 comprises a blocking portion 781 and a unidirectional rotating portion 782, the blocking portion 781 is disposed on the third side plate 733 on the upper side of the first glue pressing plate 761, the unidirectional rotating portion 782 is rotatably disposed on the third side plate 733, and the unidirectional rotating portion 782 can rotate towards a forming area of the female carton forming mold 7 when the male carton mold 6 punches the paper sheet, and the unidirectional rotating portion 782 stops against the blocking portion 781 to prevent the paper sheet from being carried out of the female carton forming mold 7 when the male carton mold 6 exits.

In particular, the one-way mechanism 78 is primarily used to block movement of the carton upon withdrawal of the carton male mold 6. The unidirectional rotation portion 782 has a shape similar to a hook. And the portion of the unidirectional rotation portion 782 facing the molding region of the carton forming master 7 is lighter than the portion facing away from the molding region of the carton forming master 7, so that the unidirectional rotation portion 782 is inclined rearward in the normal state to stop against the blocking portion 781. So that the front portion of the entire unidirectional rotation portion 782 is located in the molding region of the carton forming master 7. The front part of the unidirectional rotation part 782 is arc-shaped, and can move towards the forming area of the carton forming female die 7 under the action of impact force when the carton male die 6 punches the paperboard, so that the punching work is not affected. But returns to its original state upon withdrawal of the carton male mold 6 to block upward movement of the paperboard and fall back into the molding area of the carton forming female mold 7.

As shown in fig. 13 to 21, the female carton forming die 7 preferably further includes 4 folding and pressing modules 79, and the 4 folding and pressing modules 79 are respectively provided at one of the corner die fixing members 73 for press forming of the three-sheet carton. Among other things, tucker compression module 79 includes a first forming plate 791, a second forming plate 792, and a third forming plate 793. The first shaping plate 791 is connected to the second side plate 732, the second shaping plate 792 is connected to the first side plate 731, and the third shaping plate 793 is connected to the third side plate 733, wherein the third shaping plates 793 of two adjacent folding and compacting modules 79 are plugged into each other.

In particular, tucker compression module 79 may be a bent plate structure of an L-shaped corner. The device consists of three parts, namely a main paperboard and a side paperboard to be formed are guided to be bent and formed into a designed shape. The third forming plates 793 are inserted into each other along the direction of the first MD guide bars 713, thereby saving space and protecting the side portions while adjusting the relative distance of the corner mold fixtures 73. When the cartons to be formed are changed from the minimum size to the maximum size, the third forming plate 793 does not need to be replaced, so that cartons of different sizes and models can be adapted.

In the application, the carton male die 6 drives the paper board to enter the carton forming female die 7, so that folding and bonding of paper board foldouts are realized, and glue is compacted to bond the carton. The carton forming female mold 7 has different sizes and different types of production changing requirements. The carton forming female die 7 is simple in structure, good in compatibility and convenient to change. It is compatible with cartons of the same box type and different sizes, and is also preferably compatible with cartons of different types. The base frame 71 may connect the first CD guide bar 711 and the second CD guide bar 712 to the four connection pads 715 through the first MD guide bar 713 and the second MD guide bar 714, thereby forming a square frame, which is different from the case of only two CD guide bars of the related art. The base frame 71 is conveniently adjusted as a whole. The adjusting device 74 comprises a CD direction reversing mechanism 741 and an MD direction reversing mechanism 742, so that the adjustment of the CD direction sliding frame 72 along two vertical directions can be easily realized, and the forming space in the carton forming female die 7 can be conveniently adjusted to adapt to carton forming of different sizes and different types.

As shown in fig. 22, the out-of-box device 8 preferably includes an out-of-box conveying device 81, an out-of-box gripping device 82, and an out-of-box conveying device 83. The out-box grabbing device 82 is slidably arranged on the out-box conveying device 81 and used for grabbing the formed paper boxes on the paper box forming female die 7, and the out-box conveying device 83 is arranged on the lower side of the out-box conveying device 81 and used for conveying the paper boxes placed through the out-box grabbing device 82.

Specifically, the entire ejection device 8 protrudes gradually from the lower portion of the carton forming master 7 to the outside to facilitate removal of the formed carton. After the carton forming female die 7 completes the carton forming, the discharging grabbing device 82 of the discharging device 8 grabs under the action of the discharging conveying device 81 and places the carton grabbing device on the discharging conveying device 83 to convey the carton outwards.

As shown in fig. 22, the out-of-box conveyor 81 preferably includes an out-of-box substrate 811, an out-of-box timing conveyor 812, and an out-of-box power device 813. The out-of-box substrate 811 extends from the carton forming master 7 to the out-of-box conveyor 83. The out-of-box timing belt 812 is provided on the out-of-box substrate 811 along the longitudinal direction of the out-of-box substrate 811. The out-box power device 813 is connected to the out-box synchronous conveyor 812 to drive the out-box synchronous conveyor 812 to rotate. The out-of-box gripping means 82 comprises an out-of-box sliding part 821 out-of-box support 822 and an out-of-box suction cup 823. The out-of-box sliding portion 821 is slidably provided to the out-of-box timing belt 812. The out-box support part 822 is connected to the out-box sliding part 821. The ejection chuck 823 is disposed at one end of the ejection support portion 822 away from the ejection sliding portion 821, and is used for grabbing the carton from the carton forming female die 7.

Specifically, the discharge base 811 may be a long strip in the vertical direction for placing the entire discharge timing belt 812. Pulleys are provided on the upper and lower parts of the discharge substrate 811, and a discharge timing belt 812 is provided on the pulleys. The upper belt wheel is connected with a motor to rotate under the drive of the motor, so that the box discharging synchronous conveyor 812 is driven to rotate. The out-of-box slide 821 of the out-of-box gripping device 82 is fixedly connected to the out-of-box timing belt 812 to move together with the out-of-box timing belt 812. The out suction cup 823 moves downward with the out timing belt 812 together with the suction-molded cartons when reaching the lower side of the carton molding female die 7, and places the cartons on the out conveying device 83. In this way, the formed cartons do not fall onto the outfeed conveyor 83 preventing unnecessary damage.

According to the three-piece type carton forming machine, a main paperboard is sucked from a main paperboard bin 1 through a pick-and-place device 3 and is placed on a conveying device 2. The main paper board is conveyed to the position of the paper box forming female die 7 by the conveying device 2, and then the side paper board picking and placing device 5 sucks the side paper board from the side paper board storage bin 4 and bends the side paper board into the paper box forming female die 7 at the position of the paper box male die 6 in cooperation with the side paper board bending mechanism 9. The carton is formed into corresponding cartons under the combined action of the carton male die 6 and the carton forming female die 7, so that the cartons are output through the carton discharging device 8, and the whole process is fully automated.

The guard plate adjusting device 14 of the main paper board storage bin 1 adjusts the first side guard plate 121 and the second side guard plate 122 in a mode of positive and negative screw rods and T-shaped nuts, so that the distance between the first side guard plate 121 and the second side guard plate 122 can be manually changed to adapt to main paper boards with different sizes. The conveying and adjusting device 15 also adjusts the conveying and accommodating device 16 in a mode of positive and negative screw rods and T-shaped nuts, so that the distance between the first conveying and accommodating device 161 and the second conveying and accommodating device 162 can be manually changed to adapt to conveying work of main paperboards with different sizes.

The conveying device 2 can be used for increasing the stroke of the pushing piece 23 by adding an extension rod 24 at the end of the conveying rod 2211, so that the conveying device 2 is suitable for pushing materials with different sizes, such as main paperboards, to a proper position for punching without integrally adjusting the position of the conveying device 2.

The pick-and-place device 3 has compact structure, small load inertia force and good mechanism rigidity, and is suitable for picking and placing materials at high speed.

The side paperboard bin 4 adopts the pressing plate device 43 to compact the side paperboard by gravity, so that the compacting effect is good and the energy is saved.

The side paper board bending mechanism 9 is matched with the side paper board taking and placing device 5 to bend the side paper board at the male die module 62, the whole process is controlled, and the yield of the produced paper boxes is increased.

The corner die fixing piece 73 of the carton forming female die 7 can adapt to carton forming of different sizes, and is convenient to replace and good in compatibility. The carton forming female die 7 can easily realize the adjustment of the CD to the sliding frame 72 along two vertical directions through the CD to reversing mechanism 741 and the MD to the reversing mechanism 742, and the forming space in the carton forming female die 7 is conveniently adjusted so as to adapt to the carton forming of different sizes and different types.

As shown in fig. 24 to 25, the three-sheet type carton forming machine is mainly used for forming three-sheet type cartons. The paper box is formed by folding, lapping and bonding a main body part paper board 100, a first side part paper board 200 and a second side part paper board 300, wherein the main body part paper board 100, the first side part paper board 200 and the second side part paper board 300 are all prefabricated with crease lines, the main body part paper board 100 is folded along the crease lines to form a paper box bottom 1001, a paper box front vertical surface 1002, a paper box rear vertical surface 1003, a top small rocking cover 1004 and a top large rocking cover 1005 of the paper box, the top small rocking cover 1004 and the top large rocking cover 1005 are overlapped when the box is sealed, the top small rocking cover 1004 is used for supporting and lapping the top large rocking cover 1005, the top large rocking cover 1005 is arranged at the outermost side to form a complete top cover of the paper box, the first side part paper board 200 and the second side part paper board 300 are vertically arranged at two sides of the main body part paper board 100 and lapped with the main body part paper board 100, A first side elevation 2001 and a second side elevation 3001 bonded to form a carton; both sides of the carton bottom 1001 are folded along the crease lines to form a first bottom flap 10011 and a second bottom flap 10012; the two sides of the front elevation 1002 are folded along the score line to form a first front elevation flap 10021 and a second front elevation flap 10022 of the carton, the two sides of the rear elevation 1003 are folded along the score line to form a first rear elevation flap 10031 and a second rear elevation flap 10032 of the carton, the two sides of the top major flap 1005 are folded along the score line to form a first top cover flap 10051 and a second top cover flap 10052, the first bottom flap 10011 is bonded to the outside lower side of the first side paperboard 200, the first front elevation flap 10021 is bonded to the outside end of the first side paperboard 200, the first rear elevation flap 10031 is bonded to the outside other end of the first side paperboard 200, the first top cover flap 10051 is bonded to the outside upper side of the first side paperboard 200, the second bottom flap 10012 is bonded to the outside lower side of the second side paperboard 300, the second front elevation flap 10022 is bonded to the outside end of the second side paperboard 300, the first bottom flap 10032 is bonded to the outside other end of the second side paperboard 300, the first inner side paperboard 2002 is bonded to the first inner side paperboard 1002 of the first side elevation flap 200, the first front elevation flap 2 is bonded to the inside inner side web 2002 of the first side paperboard 11 is bonded to the first side inner side web 11 of the first side paperboard 1002, the second rear inner riser 30012 is adhered to the inside of the carton rear riser 1003. the middle of the top large shake cover 1005 is provided with a hand-tearing hole 10053. The middle parts of the first side paperboard 200 and the second side paperboard 300 are provided with handle holes 30013 so as to facilitate the carrying of the carton by consumers, and simultaneously, the carton can be used for ventilation when fresh articles are contained.

While various embodiments of the present disclosure have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present disclosure. It should be understood that various alternatives to the embodiments of the disclosure described herein may be employed in practicing the disclosure. The appended claims are intended to define the scope of the disclosure and are therefore to cover all equivalents or alternatives falling within the scope of these claims.

Claims

1. A three-piece carton forming machine, comprising:

frame;

A main paperboard bin, which is arranged on the frame and is used to place the main paperboard to be processed;

A conveying device, which is arranged at the lower side of the discharge portion of the main paperboard bin and is used to convey the main paperboard taken out from the main paperboard bin;

A pick-up and place device, which is arranged on the upper side of the conveying device and is used to take out the main paperboard from the main paperboard bin and place it on the conveying device;

A glue dispensing system, wherein the glue dispensing system is arranged on the frame;

Two side paperboard bins, the two side paperboard bins are used to place the side paperboards to be processed;

A side paperboard taking and placing device, which is arranged at the lower side of the side paperboard bin and is used to take out the side paperboard from the side paperboard bin;

A carton male mold, the carton male mold is arranged between the two side paperboard bins;

A carton forming female mold, which is arranged at the lower side of the carton male mold and is used to form the main paperboard and the side paperboard into a carton;

A control system, wherein the control system is connected to the main paperboard bin, the conveying device, the pick-and-place device, the glue dispensing system, the side paperboard bin, the side paperboard pick-and-place device, the carton male mold, and the carton forming female mold;

Wherein, the glue dispensing system dispenses glue on the main paperboard before the main paperboard is transferred to the carton forming mother mold, so as to complete the pressing of the main paperboard and the side paperboard in the carton forming mother mold;

The carton forming master mold comprises:

Basic framework;

A CD sliding frame, wherein the CD sliding frame is movably arranged on the base frame;

A corner mold fixing part, which is arranged on the CD sliding frame and is used for installing molding mold parts;

An adjusting device is arranged on the basic frame, connected to the CD sliding frame, and used for adjusting the position of the CD sliding frame.

2. The three-piece carton forming machine according to claim 1, wherein the main paperboard bin comprises:

A silo rack, the silo rack being mounted on the frame;

Side guard plates, which are installed on both sides of the silo frame and are used to protect the sides of the main paperboard;

A guide device, which is arranged on the silo frame and is used to support the main paperboard and guide the side guard plates to move to both sides;

A guard plate adjusting device, the guard plate adjusting device is arranged on the silo frame and is used to adjust the distance between the side guard plates;

A conveying and regulating device, wherein the conveying and regulating device is arranged on the silo frame;

A conveying and containing device, the conveying and containing device is installed on the conveying adjustment device and the guiding device, and is used for conveying the main paperboard;

Wherein, the conveying adjustment device can adjust the conveying holding device to move along the guiding device.

3. The three-piece carton forming machine according to claim 2, characterized in that the silo frame comprises:

a first supporting profile and a second supporting profile, wherein the first supporting profile is parallel to the second supporting profile;

A first upper connecting plate and a second upper connecting plate, wherein one end of the first upper connecting plate is connected to the first supporting profile and the other end is provided with a first through hole, and one end of the second upper connecting plate is connected to the second supporting profile and the other end is provided with a second through hole;

A first lower connecting plate and a second lower connecting plate, wherein one end of the first lower connecting plate is connected to the first supporting profile, and the other end is provided with a third through hole and a fourth through hole, and one end of the second lower connecting plate is connected to the second supporting profile, and the other end is provided with a fifth through hole and a sixth through hole.

4. The three-piece carton forming machine according to claim 3, characterized in that the guiding device comprises:

A first guide shaft, wherein the first guide shaft is inserted into the third through hole and the fifth through hole through a circular sleeve;

a second guide shaft, the second guide shaft being inserted into the fourth through hole and the sixth through hole through a circular sleeve;

a third guide shaft, the third guide shaft being inserted into the first through hole and the second through hole through a circular sleeve;

Wherein, the first guide axis is parallel to the second guide axis and the third guide axis.

5. The three-piece carton forming machine according to claim 4, characterized in that a seventh through hole is further provided between the third through hole and the fourth through hole of the first lower connecting plate, an eighth through hole is further provided between the fifth through hole and the sixth through hole of the second lower connecting plate, a ninth through hole is further provided on the first upper connecting plate, and a tenth through hole is further provided on the second upper connecting plate.

The guard plate adjusting device comprises:

A first forward and reverse screw rod, wherein the first forward and reverse screw rod is inserted into the seventh through hole and the eighth through hole through two forward and reverse rotation T-shaped nuts;

A second forward and reverse screw rod is inserted into the ninth through hole and the tenth through hole through two forward and reverse rotating T-shaped nuts, and the second forward and reverse screw rod is parallel to the first forward and reverse screw rod.

6. The three-piece carton forming machine according to claim 5 is characterized in that the guard plate adjustment device also includes: a transmission device, which is installed at the end of the first forward and reverse screw rod and the second forward and reverse screw rod on the same side, so that the first forward and reverse screw rod and the second forward and reverse screw rod rotate synchronously.

7. The three-piece carton forming machine according to claim 6 is characterized in that the guard plate adjustment device also includes: a guard plate rotating handle, which is arranged at the end of the first forward and reverse screw rod away from the transmission device, and is used to manually adjust the distance between the first supporting profile and the second supporting profile.

8. The three-piece carton forming machine according to claim 7, wherein the side guard plate comprises:

a first side guard plate connected to the first supporting profile and the first lower connecting plate;

A second side guard plate is connected to the second supporting profile and the second lower connecting plate.

9. The three-piece carton forming machine according to claim 8, characterized in that an eleventh through hole is further provided between the fourth through hole and the seventh through hole of the first lower connecting plate, and a twelfth through hole is further provided between the sixth through hole and the eighth through hole of the second lower connecting plate;

The conveying adjustment device comprises: a conveying adjustment forward and reverse screw rod, and the conveying adjustment forward and reverse screw rod is inserted into the eleventh through hole and the twelfth through hole through two forward and reverse rotating T-shaped nuts.

10. The three-piece carton forming machine according to claim 9, characterized in that the conveying and adjusting device further comprises:

A conveying rotating handle is arranged at one end of the conveying adjusting forward and reverse screw rod and is used for manually adjusting the conveying containing device.

11. The three-piece carton forming machine according to claim 10, characterized in that the conveying and containing device comprises:

A first conveying and containing device, wherein the first conveying and containing device is respectively sleeved on the first guide shaft and the second guide shaft through two circular sleeves, and is sleeved on the conveying and adjusting forward and reverse screw rods through forward and reverse rotating T-shaped nuts;

A second conveying and containing device, wherein the second conveying and containing device is respectively sleeved on the first guide shaft and the second guide shaft through two circular sleeves, and is sleeved on the conveying and adjusting forward and reverse screw rod through a forward and reverse rotating T-shaped nut;

Wherein, the first conveying and containing device is parallel to the second conveying and containing device.

12. The three-piece carton forming machine according to claim 1, wherein the conveying device comprises:

A conveyor frame, the conveyor frame comprising a molding station and a conveying station for conveying materials to the molding station;

A linear drive mechanism, wherein the linear drive mechanism is arranged on the conveying device frame;

A pushing member, wherein the initial position of the pushing member is located on the conveying station of the conveying device frame;

An extension rod, one end of which is connected to the pushing member, and the other end of which is connected to the linear drive mechanism, for extending the pushing stroke of the pushing member;

The linear drive mechanism drives the extension rod and the pusher to move linearly back and forth in the conveyor frame to push materials of different sizes into the molding station.

13. The three-piece carton forming machine according to claim 12, wherein the linear drive mechanism comprises:

A conveying mechanism, the conveying mechanism comprising a conveying rod connected to the conveying device frame, a driving wheel installed on one side of the conveying rod, a driven wheel installed on the other side of the conveying rod, and a belt sleeved between the driving wheel and the driven wheel and connected to the extension rod;

A servo motor is installed on the transmission rod, and an output shaft of the servo motor is connected to the driving wheel.

14. The three-piece carton forming machine according to claim 13, characterized in that the belt is a synchronous belt, and the linear drive mechanism further comprises: a transfer member, the transfer member comprising a belt connection portion and an extension rod connection portion connected to the belt connection portion;

Wherein, the extension rod is connected to the extension rod connecting part, a limiting groove is provided in the belt connecting part, a groove wall of the limiting groove is embedded with limiting teeth, and the limiting teeth are engaged with the belt.

15. The three-piece carton forming machine according to claim 14 is characterized in that the conveying device also includes: a sliding mechanism, the sliding mechanism includes a slide rail and a slider slidably connected to the slide rail, wherein the slider is connected to the adapter, and the slide rail is connected to the conveying rod and is parallel to the belt.

16. The three-piece carton forming machine according to claim 12, wherein the pushing member comprises:

A push plate connected to an end of the extension rod away from the linear drive mechanism;

A supporting plate connected to the bottom of the push plate;

An avoidance baffle, the avoidance baffle is connected to the top of the push plate;

Wherein, an obtuse angle is formed between the avoidance baffle and the push plate.

17. The three-piece carton forming machine according to claim 12 is characterized in that the conveying device frame includes a first conveying rail and a second conveying rail parallel to each other, and the conveying device also includes: two supporting assemblies, each of which is respectively connected to the first conveying rail and the second conveying rail for supporting materials.

18. The three-piece carton forming machine according to claim 17, characterized in that the conveying device further comprises: a bearing assembly, the bearing assembly comprising:

Four connecting plates, every two of which are spaced apart and symmetrically arranged on the first conveying guide rail and the second conveying guide rail, and each of the connecting plates is provided with a bearing rod through hole;

Two bearing rods, each of which passes through a corresponding bearing rod through hole and is plugged onto the first conveying guide rail and the second conveying guide rail to support the two supporting assemblies and the linear drive mechanism.

19. The three-piece carton forming machine according to claim 18, characterized in that each of the connecting plates is provided with a through hole for the positive and negative screw rods of the frame, and the conveying device further comprises: a frame adjusting device, and the frame adjusting device comprises:

Two rack forward and reverse screw rods, each of which is inserted into two corresponding rack forward and reverse screw rod through holes on the connecting plate through two forward and reverse rotating T-shaped nuts;

A frame transmission device, the frame transmission device is connected to the same side end of the two frame forward and reverse screw rods, and is used to drive the two frame forward and reverse screw rods to move synchronously;

A rack adjustment handle is arranged at one end of one of the rack forward and reverse screw rods, and is used to manually adjust the distance between the first conveying guide rail and the second conveying guide rail.

20. The three-piece carton forming machine according to claim 19 is characterized in that the conveying device also includes: two positioning blocks, which are symmetrically arranged on the first conveying guide rail and the second conveying guide rail on both sides of the molding station to slide along the first conveying guide rail and the second conveying guide rail and lock and fix after sliding into place.

21. The three-piece carton forming machine according to claim 1, wherein the pick-and-place device comprises:

A power mechanism, wherein the power mechanism is arranged on the frame;

An extraction device, the extraction device is used to extract and release the material;

A connecting rod mechanism, the connecting rod mechanism comprising: a swing arm, one end of which is rotatably connected to the frame and connected to the power mechanism through a first rotating shaft; a slide seat, the slide seat is rotatably connected to the frame; a slide rod device, one end of which is rotatably connected to the other end of the swing arm through a second rotating shaft, and the other end is arranged on the extraction device after passing through the slide seat;

Among them, the power mechanism can drive the slide rod device to slide in the slide seat and rotate at the same time through the swing arm, and the slide rod device drives the extraction device to take materials from the storage area of the three-piece carton forming machine and place them on the conveying device.

22. The three-piece carton forming machine according to claim 21, wherein the extraction device comprises:

A load-bearing member connected to the other end of the slide bar device;

A grabbing device is arranged on the bearing member and is used for grabbing materials.

23. The three-piece carton forming machine according to claim 22, characterized in that the gripping device is at least one vacuum suction cup or at least one pneumatic gripper.

24. The three-piece carton forming machine according to claim 23, characterized in that the pick-up and placement device further comprises: a perturbation pipeline, the perturbation pipeline comprising:

At least one branch pipe, at least one branch pipe is arranged on the bearing member and is connected to at least one vacuum suction cup or at least one pneumatic clamp one by one;

A first transfer device, the first transfer device is fixedly mounted on the frame and has a first axis that is colinear with the center axis of the first rotating shaft;

A second transfer device, the second transfer device is fixed to the swing arm or the second rotating shaft and has a second axis that is colinear with the center axis of the second rotating shaft;

a first trunk pipe, one end of which is used to connect to a vacuum pumping device and the other end of which is connected to the first transfer device;

a second trunk pipe, one end of the second trunk pipe being connected to the first transfer device and the other end of the second trunk pipe being connected to the second transfer device;

a third trunk pipe, one end of which is connected to the second transfer device and the other end of which is connected to each of the vacuum suction cups through at least one branch pipe;

Among them, the first transfer device can connect the first trunk pipe with the second trunk pipe and allow the second trunk pipe to rotate around the first axis relative to the first trunk pipe, and the second transfer device can connect the third trunk pipe with the second trunk pipe and allow the second trunk pipe to rotate around the second axis relative to the third trunk pipe.

25. The three-piece carton forming machine according to claim 22, wherein the slide bar device comprises:

A sliding rod, one end of which is rotatably connected to the other end of the swing arm via a second rotating shaft;

A first connecting end plate, one end of which is fixedly connected to the bearing member, and the other end of which is fixedly connected to the other end of the sliding rod, so as to enhance the connection strength between the sliding rod and the bearing member.

26. The three-piece carton forming machine according to claim 25, characterized in that the slide bar device also includes a reinforcing plate fixedly mounted on the bearing member and fixedly connected to the slide bar.

27. The three-piece carton forming machine according to claim 22, wherein the slide bar device comprises:

a first sliding rod and a second sliding rod, wherein one end of the first sliding rod and the second sliding rod pass through the sliding seat and are arranged on the bearing member;

A second connecting end plate, wherein the second connecting end plate is rotatably connected to the other end of the swing arm through a second rotating shaft, and the other ends of the first sliding rod and the second sliding rod are connected to the second connecting end plate.

28. The three-piece carton forming machine according to claim 21, characterized in that the angle between the center line of the swing arm and the center line of the slide bar device along the length direction in the initial position is in the range of 85° to 105°.

29. The three-piece carton forming machine according to claim 21, characterized in that the power mechanism includes a motor, an engine, a swing cylinder or a component mainly composed of a cylinder, a rack and a gear and used to drive the swing arm to rotate.

30. The three-piece carton forming machine according to claim 1, wherein the side paperboard bin comprises:

A side paperboard material storage rack, wherein the side paperboard material storage rack is arranged on the frame;

Side paperboard side guard plates, the side paperboard side guard plates are connected to the side paperboard material storage racks and are used to protect the side surfaces of the side paperboards;

A pressing plate device, which is arranged on the side paperboard material storage rack and is used to press the top of the side paperboard;

A paper support plate is arranged at the bottom of the side paperboard side guard plate and is used for supporting the side paperboard.

31. The three-piece carton forming machine according to claim 30 is characterized in that there are two side cardboard side guard plates, and the two side cardboard side guard plates are both arranged on the side of the side cardboard material storage rack away from the carton male mold.

32. The three-piece carton forming machine according to claim 30 or 31, characterized in that the side paperboard and side guard plates are integral plate structures, and the width of the side paperboard and side guard plates is greater than the width of the side paperboard.

33. The three-piece carton forming machine according to claim 31, wherein the pressing plate device comprises:

A pressing plate sliding rod, the pressing plate sliding rod is fixedly connected to the side paperboard material storage rack and is located in the middle of the two side paperboard side guard plates;

A pressure plate slider, the pressure plate slider can be slidably arranged on the pressure plate sliding rod;

A pressure plate, one end of which is arranged on the pressure plate slider and moves along the pressure plate sliding rod along with the pressure plate slider, and the other end of which extends to the upper part of the side paperboard to press against the side paperboard under the action of gravity.

34. The three-piece carton forming machine according to claim 31, characterized in that a long groove is provided at the bottom of the side paperboard side guard plate, and the paper support plate comprises:

A support plate, which is fixed to the bottom of the side paperboard side guard plate and extends into the inner side of the side paperboard bin to support the side paperboard;

The baffle plate can be slidably arranged at the bottom of the side paperboard side guard plate, and is used to stop the side paperboard from tilting forward and limit the falling position of the side paperboard.

35. The three-piece carton forming machine according to claim 30, wherein the side paperboard bin further comprises:

A side guard plate adjusting device is connected to the two side paperboard side guard plates and is used to adjust the distance between the two side paperboard side guard plates.

36. The three-piece carton forming machine according to claim 35, characterized in that the two side paperboard side guard plates are provided with shaft sleeves on one side facing the side paperboard material storage rack, the side paperboard through holes are provided on the side paperboard material storage rack, and the side guard plate adjustment device comprises:

The side guard plate forward and reverse screw rods are connected to the side paperboard material storage rack through a bearing seat, and one end of the side guard plate forward and reverse screw rods passes through the side paperboard through-hole and is inserted into two shaft sleeves through forward and reverse rotating T-shaped nuts;

A side paperboard adjustment handle is installed at one end of the side guard plate forward and reverse screw rod passing through the side paperboard through hole, and is used to rotate the side guard plate forward and reverse screw rod to drive the two side paperboard side guard plates to move relative to or towards each other.

37. The three-piece carton forming machine according to claim 1, wherein the carton male mold comprises:

A male mold driving device, wherein the male mold driving device is arranged on the frame;

A male mold module is installed on the male mold driving device to reciprocate up and down under the drive of the male mold driving device.

38. The three-piece carton forming machine according to claim 37, wherein the male mold module comprises:

Male mold forming plate;

Two male mold guard plates, the two male mold guard plates are symmetrically arranged on two sides of the male mold forming plate facing the side paperboard bin;

A driving connecting plate, one end of which is fixedly connected to the male mold forming plate, and the other end of which is connected to the male mold driving device.

39. The three-piece carton forming machine according to claim 38 is characterized in that the three-piece carton forming machine also includes: two side cardboard bending mechanisms, which are used to bend the side cardboards taken out by the side cardboard picking and placing device after they are pushed to the carton male mold.

40. The three-piece carton forming machine according to claim 39, wherein the side paperboard bending mechanism comprises:

A side paperboard bending power device, wherein the side paperboard bending power device is installed on the frame;

A side paperboard bending plate is connected to the side paperboard bending power device so as to move toward the male mold guard plate to bend the side paperboard under the drive of the side paperboard bending power device.

41. The three-piece carton forming machine according to claim 1, wherein the base frame comprises:

a first CD guide rod and a second CD guide rod, wherein the first CD guide rod is parallel to the second CD guide rod;

a first MD guide rod and a second MD guide rod, wherein the first MD guide rod is parallel to the second MD guide rod and perpendicular to the first CD guide rod;

Four connecting seats, each of which comprises a first connecting seat through hole and a fixing portion perpendicular to the axis of the first connecting seat through hole;

Four adjustment units, each of which is used to adjust the position of the base frame;

Among them, the two ends of the first CD guide rod and the second CD guide rod respectively pass through the first connecting seat through holes of the two connecting seats and each end is connected to one of the connecting seats through an adjustment unit, and the two ends of the first MD guide rod and the second MD guide rod are respectively connected to a fixing part of the connecting seat.

42. The three-piece carton forming machine according to claim 41, wherein the CD sliding frame comprises:

Two CD sliding frame end plates, each of the CD sliding frame end plates includes a CD guide sleeve;

Two CD sliding frame guide rods, the two CD sliding frame guide rods are respectively connected to the CD sliding frame end plates;

Wherein, the CD guide frame is respectively sleeved on the first CD guide rod and the second CD guide rod through the CD guide sleeves at both ends so as to be able to slide along the first CD guide rod and the second CD guide rod.

43. The three-piece carton forming machine according to claim 42, wherein the corner mold fixing member comprises:

A first side plate, wherein the first side plate is provided with two corner mold through holes, and the two CD sliding frame guide rods are respectively inserted into the two corner mold through holes through shaft sleeves;

A second side plate, wherein the second side plate is vertically connected to the first side plate.

44. The three-piece carton forming machine according to claim 43 is characterized in that there are two CD-direction sliding frames, and two corner mold fixing members are symmetrically arranged on each CD-direction sliding frame, wherein the first side panels of the two corner mold fixing members on the same CD-direction sliding frame are arranged opposite to each other, and the second side panels of the two adjacent corner mold fixing members on different CD-direction sliding frames are arranged opposite to each other.

45. The three-piece carton forming machine according to claim 44 is characterized in that a second connecting seat through hole is provided on one of the connecting seats on the side of the second CD guide rod, the CD sliding frame end plate further comprises a connecting lug portion, each of the connecting lug portions is provided with a lug hole, the connecting lug portion is located on the CD guide sleeve side of the CD sliding frame end plate, the adjusting device comprises: a CD reversing mechanism, the CD reversing mechanism comprises:

A first CD forward and reverse screw rod, which is connected to the connecting seats on both sides of the first CD guide rod through a bearing seat and inserted into two lug holes on the same side through a forward and reverse rotating T-shaped nut;

A second CD-direction forward and reverse screw rod, which is connected to the connection seats on both sides of the second CD guide rod through a bearing seat, one end of which passes through the through hole of the second connection seat and is inserted into the two lug holes on the other side through a forward and reverse rotating T-shaped nut;

A CD transmission device, wherein the CD transmission device is connected to the first CD forward and reverse screw rod and the second CD forward and reverse screw rod so that the first CD forward and reverse screw rod and the second CD forward and reverse screw rod rotate synchronously;

A CD-direction adjustment handle is installed on one end of the second CD-direction forward and reverse screw rod passing through the connecting seat, and is used to adjust the two CD-direction sliding frames along the direction of the first CD guide rod.

46. The three-piece carton forming machine according to claim 44, characterized in that a positive and negative screw through hole is provided between the two corner mold through holes on the first side plate, and the adjustment device further comprises: an MD direction reversing mechanism, and the MD direction reversing mechanism comprises:

A sliding shaft, one end of which passes through and is rotatably connected to a connecting seat on one side of the first CD guide rod, and the sliding shaft is parallel to the first CD guide rod;

Two forward and reverse screw rods of the two sliding frames, each of which is inserted into two forward and reverse screw rod through holes on the same CD-direction sliding frame through a pair of forward and reverse rotating T-shaped nuts, both ends of each CD-direction sliding frame can be rotatably connected to two CD-direction sliding frame end plates on the same CD-direction sliding frame, and the side close to the sliding shaft passes through the CD-direction sliding frame end plate;

Two pairs of first bevel gears and second bevel gears, each of the first bevel gears is arranged on the forward and reverse screw rods of the sliding frame passing through the CD sliding frame end plate, and each of the second bevel gears is correspondingly arranged on the CD sliding frame end plate where the first bevel gear is located to mesh with the first bevel gear, wherein each of the second bevel gears is provided with a bevel gear hole;

An MD-direction adjustment handle, wherein the MD-direction adjustment handle is installed on the sliding shaft passing through the connection seat on one side of the first CD guide rod;

The sliding shaft is sequentially inserted into the two bevel gear holes on the same side to drive the forward and reverse screw rods of the two sliding frames to rotate synchronously when the sliding shaft rotates.

47. The three-piece carton forming machine according to claim 44, characterized in that the carton forming mother mold further comprises: an MD sliding frame, and the MD sliding frame comprises:

Two MD sliding frame end plates, each of the MD sliding frame end plates includes an MD guide sleeve;

Two MD-direction sliding frame guide rods, wherein the two MD-direction sliding frame guide rods are respectively connected to the two MD-direction sliding frame end plates;

Wherein, the MD sliding frame is respectively connected to the first MD guide rod and the second MD guide rod through the MD guide sleeves at both ends, so as to be able to slide along the first MD guide rod and the second MD guide rod.

48. The three-piece carton forming machine according to claim 47 is characterized in that a long hole is opened on the second side plate of the corner mold fixing part, and there are two MD-direction sliding frames, and the two MD-direction sliding frame guide rods of each of the MD-direction sliding frames pass through the long holes of two symmetrical second side plates to move synchronously with the corner mold fixing part.

49. The three-piece carton forming machine according to claim 48 is characterized in that each of the corner mold fixing parts also includes: a third side plate, the third side plate is parallel to the first side plate, and is sleeved on the two CD sliding frame guide rods on the same side.

50. The three-piece carton forming machine according to claim 49, wherein the carton forming mother mold further comprises:

Four first glue pressing mechanisms, which are symmetrically arranged on the third side plate and are used to press glue spots between the side paperboard and the main paperboard along the direction of the first CD guide rod;

Four second glue pressing mechanisms are symmetrically arranged on the second side plate, and are used to press the glue spots between the side paperboard and the main paperboard along the direction of the first MD guide rod.

51. The three-piece carton forming machine according to claim 50, wherein the first glue pressing mechanism comprises:

A first glue pressing plate, wherein the first glue pressing plate is perpendicular to the third side plate and faces the molding area of the carton molding mother mold;

The first glue pressing cylinder is arranged on the third side plate and is connected to the first glue pressing plate through a piston to drive the first glue pressing plate to reciprocate toward the molding area of the carton molding mother mold.

52. The three-piece carton forming machine according to claim 51, wherein the second glue pressing mechanism comprises:

A second glue pressing plate, wherein the second glue pressing plate is perpendicular to the second side plate and faces the molding area of the carton molding mother mold;

The second glue pressing cylinder is arranged on the second side plate and connected to the second glue pressing plate through a piston to drive the second glue pressing plate to reciprocate toward the molding area of the carton molding mother mold along a moving direction perpendicular to the first glue pressing plate.

53. The three-piece carton forming machine according to claim 51, characterized in that the carton forming mother mold further comprises: a one-way mechanism, the one-way mechanism comprising:

A blocking portion, the blocking portion is arranged on the third side plate on the upper side of the first glue pressing plate;

a one-way rotating portion, the one-way rotating portion being rotatably disposed on the third side plate;

When the carton male mold is punching the cardboard, the one-way rotating part can rotate toward the molding area of the carton forming female mold, and when the carton male mold is withdrawn, the one-way rotating part stops at the blocking part to prevent the cardboard from being brought out of the carton forming female mold.

54. The three-piece carton forming machine according to claim 53 is characterized in that the carton forming mother mold also includes: a folding and pressing module, and there are four folding and pressing modules, which are respectively arranged in one of the corner mold fixing parts and are used for stamping and forming of the three-piece carton.

55. The three-piece carton forming machine according to claim 54, wherein the folding and pressing module comprises:

a first forming plate, the first forming plate being connected to the second side plate;

a second forming plate, the second forming plate being connected to the first side plate;

A third forming plate, the third forming plate being connected to the third side plate;

Wherein, the third forming plates of two adjacent folding and pressing modules are plugged into each other.

56. The three-piece carton forming machine according to claim 1, characterized in that the three-piece carton forming machine further comprises: a carton discharging device, the carton discharging device comprising:

Out-of-box conveyor;

A carton grabbing device, which can be slidably arranged on the carton conveying device and is used to grab the carton formed on the carton forming mother mold;

The out-of-box conveying device is located at the lower side of the out-of-box conveying device and is used to convey the cartons placed by the out-of-box grabbing device.

57. The three-piece carton forming machine according to claim 56, characterized in that the carton delivery conveying device comprises:

A box-out substrate, the box-out substrate extending from the carton-forming mother mold to the box-out conveying device;

An out-of-box synchronous conveyor belt, the out-of-box synchronous conveyor belt is arranged on the out-of-box substrate along the length direction of the out-of-box substrate;

A box discharging power device is connected to the box discharging synchronous conveyor belt to drive the box discharging synchronous conveyor belt to rotate.

58. The three-piece carton forming machine according to claim 57, wherein the carton grabbing device comprises:

An out-of-box sliding part, the out-of-box sliding part can be slidably arranged on the out-of-box synchronous conveyor belt;

A box-out support portion, the box-out support portion being connected to the box-out sliding portion;

The box-out suction cup is arranged at one end of the box-out support portion away from the box-out sliding portion, and is used to grab the carton from the carton forming mother mold.