CN113650864A

CN113650864A - Multi-specification carton packaging production line and production method thereof

Info

Publication number: CN113650864A
Application number: CN202110873630.XA
Authority: CN
Inventors: 曹宇轩; 陶通涓; 杨永泽; 黄建生; 吴深潭; 路立刚; 汪建华; 王卫红; 韩立斌; 段平英; 向纯彬
Original assignee: Guangdong Netna Intelligent Equipment Co ltd; Honorfaith Furniture Co Ltd
Current assignee: Guangdong Netna Intelligent Equipment Co ltd; Honorfaith Furniture Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-16

Abstract

The invention discloses a multi-specification carton packaging production line which comprises a positioning mechanism, a folding mechanism, a packaging mechanism and a box sealing mechanism, wherein the positioning mechanism, the folding mechanism, the packaging mechanism and the box sealing mechanism are sequentially arranged along a processing direction and are mutually communicated; the edge folding mechanism comprises an edge folding frame, the edge folding frame is provided with an installation table and edge folding blocks, the edge folding blocks are fixedly arranged on the installation table, and two sides of the edge folding frame are provided with second adjusting devices for adjusting the positions of the installation table on the edge folding frame; the packaging mechanism comprises a packaging frame, the box sealing mechanism comprises a box sealing frame, two box sealing devices are arranged on the box sealing frame, and a telescopic carton clamping device is arranged below the box sealing devices. The invention also discloses a production method of the multi-specification carton packaging production line, and solves the problems that the traditional carton packaging production line cannot be adapted to continuous production of cartons with different specifications, so that the production cost of the cartons is high, and the production efficiency is low.

Description

Multi-specification carton packaging production line and production method thereof

Technical Field

The invention relates to the technical field of automatic production equipment of cartons, in particular to a multi-specification carton packaging production line and a production method thereof.

Background

When the carton is produced, the raw material plate needs to be cut to form a specific shape, then edge folding and gluing are carried out through edge folding equipment, and finally, after the product is filled, the carton is bonded and sealed for forming.

Traditional carton packing production line can only correspond the carton packing production of single specification, if need produce the carton of different specifications then need put into a large amount of production lines, perhaps stop the function of production line, adjust production line equipment and make its adaptation in the production of the carton of another specification, all can lead to manufacturing cost to increase, the problem that production efficiency reduces.

Therefore, it is necessary to develop a packaging production line and a production method thereof, which can be adapted to cartons of different specifications in real time, so as to reduce the cost input of the production line and ensure the production and packaging efficiency of the cartons.

Disclosure of Invention

The invention aims to provide a multi-specification carton packaging production line and a production method thereof, which are used for solving the problems that the traditional carton packaging production line cannot be adapted to continuous production of cartons with different specifications, so that the production cost of the cartons is high, and the production efficiency is low.

In order to achieve the purpose, the specific implementation scheme of the multi-specification carton packaging production line provided by the invention is as follows:

a multi-specification carton packaging production line comprises a positioning mechanism, a folding mechanism, a packaging mechanism and a carton sealing mechanism which are sequentially arranged along a processing direction and are mutually communicated, wherein the positioning mechanism comprises a positioning frame, a first conveying device and a first adjusting device are arranged on the positioning frame, the first adjusting device is in transmission connection with the first conveying device, is positioned on two sides of the first conveying device and is used for adjusting the positions of the two sides of the first conveying device on the positioning frame; the folding mechanism comprises a folding frame, an installation table and folding blocks are arranged on the folding frame, the folding blocks are fixedly arranged on the installation table, second adjusting devices are arranged on two sides of the folding frame and connected with the installation table for adjusting the positions of the installation table on the folding frame, and a forming device is arranged at the tail end of the folding mechanism and used for carrying out folding forming on two ends of a carton; the packaging mechanism comprises a packaging frame, a guide device is arranged on the packaging frame, and the guide device is used for guiding the carton from the edge folding frame to the packaging frame; the carton sealing mechanism comprises a carton sealing frame, two carton sealing devices are arranged on the carton sealing frame, a telescopic carton clamping device is arranged below the carton sealing devices, the carton sealing devices are used for sealing two ends of a carton, and the carton clamping devices are used for clamping and fixing the carton below the carton sealing devices.

Compared with the prior art, the multi-specification carton packaging production line has the advantages that the first adjusting device for adjusting the position of the first conveying device on the positioning frame is arranged on the positioning mechanism, so that the positioning mechanism can be adapted to positioning treatment of paperboards of different specifications; the second adjusting device for adjusting the position of the mounting table on the edge folding frame is arranged on the edge folding mechanism, so that the edge folding block can be adapted to edge folding treatment of paper boards with different specifications; through set up telescopic carton clamping device on the joint sealing frame at joint sealing mechanism, make carton clamping device can be through the centre gripping of flexible adaptation in different specification cartons, with carton centre gripping to joint sealing device's bottom, joint sealing device carries out the joint sealing processing to the tip of carton, thereby make the production process equipment of carton packing only need cooperate control terminal's control can adjust the adaptation by oneself according to the size of carton, need not to stop production postreadjustment, also need not to drop into the production facility of a large amount of different specifications, the unable continuous production of adaptation in the carton of different specifications of traditional carton packaging line has been solved effectively, lead to the manufacturing cost of carton high, the problem that production efficiency is low.

As a further improvement of the invention, the first conveying device comprises a fixed conveying belt fixedly arranged on the positioning frame and a sliding conveying belt slidably arranged on the positioning frame, the sliding conveying belt is positioned at two side parts of the fixed conveying belt, and the first adjusting device is connected with the sliding conveying belt.

Furthermore, a first slidable positioning device and a second liftable positioning device are arranged on the first transportation group device, the first positioning device is arranged at the outer side part of one of the sliding conveying belts, a positioning baffle matched with the first positioning device is arranged at the outer side part of the other sliding conveying belt, the second positioning device is arranged at one end, close to the edge folding mechanism, of the fixed conveying belt and the sliding conveying belt, and the first positioning device and the second positioning device are used for positioning the carton through a motor connecting rod structure.

As a further improvement of the present invention, the second adjusting device includes a second motor and a second lead screw fixedly disposed on a side portion of the hemming frame, one end of the second lead screw is in transmission connection with the second motor, and the other end of the second lead screw is in threaded connection with the mounting table.

Furthermore, first guide rails are arranged at two ends of the positioning frame, and a first sliding block which can slide and is sleeved on the first guide rails is arranged at the bottom of the mounting table.

As a further improvement of the present invention, the carton clamping device includes a first baffle, a second baffle, a first fixing plate, a third motor, a third screw rod and a third slider, the first baffle and the second baffle are respectively disposed at two side portions of the carton sealing frame, the first fixing plate is disposed at one side of the carton sealing frame, the first baffle and the first fixing plate are connected in a lifting manner, the third motor is disposed at one side of the carton sealing frame, a motor shaft of the third motor is connected with the third screw rod in a transmission manner, the third slider is slidably sleeved on the third screw rod, and the second baffle is fixed on the third slider.

Further, the joint sealing frame comprises a first joint sealing frame and a second joint sealing frame which are sequentially arranged along the machining direction, mounting frames are arranged on the first joint sealing frame and the second joint sealing frame, the joint sealing device is arranged on the mounting frames, the first joint sealing frame and the second joint sealing frame are located at positions below the joint sealing device, and a third positioning device is arranged at the position below the joint sealing device and used for blocking the carton below the joint sealing device, so that the carton clamping device can clamp the carton, and the joint sealing device can be used for folding and sealing two ends of the carton.

Furthermore, a plurality of reset rollers are arranged at the tail end of the second carton sealing frame, the transport direction of the reset rollers is opposite to the processing direction, the reset rollers are used for transporting the carton subjected to the tail end carton sealing treatment back to the second carton sealing frame to carry out folding carton sealing treatment on the front end of the carton, a third positioning device located on the second carton sealing frame is used for blocking the front end of the carton, and a third positioning device located on the first carton sealing frame is used for blocking the tail end of the carton.

A production method of a multi-specification carton packaging production line comprises the following steps:

a1: the paperboard enters a first conveying device of the positioning mechanism, and the first positioning device and the second positioning device respectively position the side part and the end part of the paperboard and then convey the paperboard into the edge folding mechanism;

a2: the folding blocks on the folding mechanism carry out folding processing on two sides of the paper board, so that the paper board is preliminarily formed into a shape of a paper box, and the paper board is conveyed to a forming device to carry out folding bonding processing on two ends of the paper box and then conveyed into a packaging mechanism under the guiding action of a guiding device;

a3; after the paper box enters the packaging mechanism, a needed product is placed into the paper box by a manual or mechanical arm mode and then conveyed into the box sealing mechanism;

a4: and the carton sealing device on the carton sealing frame of the carton sealing mechanism is used for carrying out folding carton sealing treatment on two ends of the carton.

Further, the step a4 further includes the following steps:

b1: the carton enters the first carton sealing frame, the third positioning device blocks the tail end of the carton, the carton clamping device clamps the carton, the carton sealing device performs carton sealing treatment on the tail end of the carton, and then the carton is conveyed into the second carton sealing frame;

b2: the carton gets into the end of second joint sealing frame, and under the transportation effect of the roller that resets, reentry second joint sealing frame is interior, and third positioner blocks the front end of carton, and carton clamping device centre gripping carton, joint sealing device carry out the joint sealing processing to the front end of carton.

Based on the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. first adjusting device and second adjusting device all adopt lead screw slider structure, improve the regulation convenience and the stability of first conveyer and mount table effectively.

2. Through setting up first guide rail on the locating rack, establish the mount table slidable ground cover on first guide rail, improve the regulation convenience and the smoothness nature of mount table.

3. Carry the second through the joint sealing device of first joint sealing frame to carry out the joint sealing to the end of carton in handling the second joint sealing frame, set up the roller that resets at the end of second joint sealing frame, utilize the roller that resets to transport the carton again to the second joint sealing frame in for the joint sealing device can carry out the joint sealing to the front end of carton and handle, need not the angle of artifical rotatory carton, improves joint sealing efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a positioning mechanism of the present invention;

FIG. 3 is a schematic view of the first transportation device of the present invention;

FIG. 4 is a schematic structural diagram of a first positioning device according to the present invention;

FIG. 5 is a schematic structural diagram of a second positioning device according to the present invention;

FIG. 6 is a schematic view of a first adjustment mechanism of the present invention;

FIG. 7 is a schematic structural diagram of a first driving device according to the present invention;

FIG. 8 is a schematic view of the folding mechanism of the present invention;

FIG. 9 is a schematic structural view of the folding frame of the present invention;

FIG. 10 is a schematic view of the folding block of the present invention mounted on a folding frame;

FIG. 11 is a schematic structural view of the hem block of the invention with portions broken away;

FIG. 12 is an enlarged partial view of portion A of FIG. 10 in accordance with the present invention;

FIG. 13 is a schematic structural view of the carton transport device of the present invention;

FIG. 14 is an enlarged partial view of portion B of FIG. 13 in accordance with the present invention;

FIG. 15 is a schematic view of the packaging mechanism of the present invention;

FIG. 16 is a schematic structural view of the box sealing mechanism of the present invention;

FIG. 17 is a schematic view of a first enclosure frame according to the present invention;

FIG. 18 is a schematic structural view of a second enclosure frame of the present invention;

FIG. 19 is a schematic view of a third positioning device according to the present invention;

FIG. 20 is a bottom view of a third positioning device of the present invention;

FIG. 21 is a schematic view of the structure of the lance adjustment assembly of the present invention;

FIG. 22 is a flow chart of the production method of the present invention.

Detailed Description

The invention discloses a multi-specification carton packaging production line and a production method thereof, which are described in the specification with reference to the accompanying drawings.

As shown in fig. 1, the multi-specification carton packaging line includes a positioning mechanism 1, a folding mechanism 2, a packaging mechanism 3, and a box sealing mechanism 4, which are sequentially arranged along a processing direction and are communicated with each other.

The positioning mechanism 1 is used for positioning the paper board and then conveying the paper board to the edge folding mechanism 2.

The folding mechanism 2 is used for folding the paper boards conveyed by the positioning mechanism 1 into cartons.

The packaging mechanism 3 is used to place the products into the formed cartons.

The carton sealing mechanism 4 is used for carrying out carton sealing treatment on the carton.

A transport frame 5 is arranged between the packing mechanism 3 and the box sealing mechanism 4

Example 1:

as shown in fig. 2 to 7, the positioning mechanism 1 includes a positioning frame 10, a first transportation device 11 is disposed on the positioning frame 10, and the first transportation device 11 is used for transporting the cardboard.

Specifically, the first transportation device 11 includes a fixed transportation belt 111 fixed on the spacer 10 and a sliding transportation belt 112 slidably disposed on the spacer 10, and the sliding transportation belt 112 is disposed on both sides of the fixed transportation belt 111.

Further, the sliding conveyer belt 112 is connected with a first adjusting device 12, and the first adjusting device 12 drives the sliding conveyer belt 112 to move on the positioning frame 10 so as to adapt to the transportation of the paperboards with different specifications.

The positioning frame 10 is provided with a first seat 101 and a second seat 102, the first seat 101 is fixed on the positioning frame 10, and the second seat 102 is slidably disposed on the positioning frame 10 and located at two sides of the first seat 101.

Further, the fixed conveyer 111 is disposed on the first seat 101, and the sliding conveyer 112 is disposed on the second seat 102.

Further, two end portions of the positioning frame 10 are provided with first rails 103, and the bottom of the second base 102 is sleeved on the first rails 103.

Further, a first sliding block 105 is disposed at the bottom of the second base 102, and the first sliding block 105 is sleeved on the first rail 103.

Specifically, the first adjusting device 12 is provided with two sets, each set is connected to one sliding conveyor belt 112, and includes a first motor 121, a first transmission belt 122, a first screw 123, a first sliding block 124 and a first insertion block 125, the first insertion block 125 is fixedly disposed on the first base 101, the first sliding block 124 is fixedly disposed on the second base 102, the first motor 121 is fixed on a side portion of the positioning frame 10, a motor shaft thereof is connected to the first transmission belt 122 through a gear structure, one end portion of the first screw 123 is connected to the first transmission belt 122 through a gear structure, so as to realize transmission connection with the first motor 121, and the other end thereof is rotatably inserted into the first insertion block 125, and the first sliding block 124 is slidably sleeved on the first screw 123.

According to the above, when the first motor 121 operates, the first lead screw 123 is driven to rotate, so that the first slider 124 moves on the first lead screw 123, and the second seat 102 is driven to move, and the position of the sliding conveyor belt 112 disposed on the second seat 102 on the positioning frame 10 is adjusted, so as to adapt to the transportation of the paperboards with different specifications.

Further, the first motor 121 is fixed on the positioning frame 10 by a mounting block 126.

The positioning frame 10 is further provided with a first driving device 16 for driving the first transportation device 11 to operate, the first driving device 16 includes a first driving motor 161, a second transmission belt 162, a first rotating shaft 163 and a first fixing block 164, the first fixing block 164 is fixedly arranged at two side portions of the positioning frame 10, two ends of the first rotating shaft 163 are rotatably inserted into the first fixing block 164, one end of the first rotating shaft is penetrated through the first fixing block 34 and is connected with the first transmission belt 162 through a gear structure, the first transmission belt 162 is sleeved on a motor shaft of the first driving motor 161 through the gear structure, and the first driving motor 161 is fixedly arranged at a side portion of the positioning frame 10 through a motor base 165.

Specifically, the first seat 101 and the second seat 102 are provided with a first rotating roller 166, and the first rotating roller 166 is rotatably sleeved on the first rotating shaft 163.

Further, a first frame body 167 is arranged on the first seat body 101 and the second seat body 102, and the first rotating roller 166 is rotatably sleeved or inserted on the first frame body 167.

Further, first auxiliary rollers 168 are disposed on two sides of the first rotating roller 166 to assist the first rotating roller 166 to rotate the belts on the fixed conveyor belt 111 and the sliding conveyor belt 112.

Wherein, the side of the first transportation device 11 is also provided with a first positioning device 13.

Specifically, the first positioning device 13 is disposed at an outer side portion of one of the slide conveyor belts 112, and a positioning baffle 15 cooperating with the first positioning device 13 to position the paper board is disposed at an outer side portion of the other slide conveyor belt 112.

Further, the positioning baffle 15 is fixed to the outer side of the slide conveyor 112 by screws, pins, bolts, or the like.

Further, the first positioning device 13 includes a first positioning cylinder 131, a first positioning push plate 132, a second fixing plate 133, and a first connecting rod 134.

The first positioning cylinder 131 is fixed on the second fixing plate 133, and is connected to the first link 134, for pushing the first link 134 to swing.

The second fixing plate 133 is fixedly connected to the outer side of the sliding conveyor 112, two ends of the second fixing plate 133 are connected to the first connecting rod 134 capable of swinging, and the other end of the first connecting rod 134 is connected to the first positioning pushing plate 132, so that the first positioning pushing plate 132 can be slidably mounted on the second fixing plate 133.

Further, both ends of the second fixing plate 133 and the side of the first positioning pushing plate 132 are provided with first mounting blocks 135 having openings for inserting the ends of the first connecting rods 134, and the first connecting rods 134 are swingably connected to the first mounting blocks 135 by means of pins.

The first pushing block 1311 is connected to a piston rod of the primary positioning cylinder 131, the first pushing block 1311 is connected to a first swing rod 1312, and the first swing rod 1312 and the first connecting rod 134 are connected in a swinging mode.

Further, a first connecting block 1313 is arranged between the first swing rod 1312 and the first pushing block 1311, the first connecting block 1313 is fixedly connected with the first pushing block 1311, a first mounting block 135 with an opening is arranged on the first connecting block 1313, one end of the first swing rod 1312 is connected with the first mounting block 135 in a swinging mode through a pin shaft, and the other end of the first swing rod 1312 is connected with the first connecting rod 134 in a swinging mode through a pin shaft.

The first positioning device 13 of the present embodiment mainly realizes the lateral positioning of the cardboard by cooperating with the positioning baffle 15.

Wherein, the end of the first transportation device 11 close to the folding mechanism 2 is provided with a second positioning device 14.

Specifically, the second positioning device 14 is provided with three sets, which are respectively located at the ends (the end close to the folding mechanism 2) of the fixed conveyor belt 111 and the sliding conveyor belt 112.

Further, the second positioning device 14 includes a second positioning cylinder 141, a second positioning stopper 142, a second connecting block 143, and a second connecting rod 144.

The second positioning cylinder 141 is fixedly arranged on the second connecting block 143, and two second connecting blocks 143 are arranged on two sides of the conveying belt respectively.

Of course, the conveyor belts are the fixed conveyor belt 111 and the slide conveyor belt 112, that is, the second connecting blocks 143 are disposed on both sides of the fixed conveyor belt 111 and the slide conveyor belt 112.

The second positioning cylinder 141 is fixedly arranged on the second connecting block 143 on one side thereof.

The second connecting block 143 is further provided with the second connecting rod 144 capable of swinging, and the end of the second connecting rod 144 is connected with the second positioning stop 142.

The two sides of the second positioning stopper 142 are connected with the second connecting rod 144, and the second connecting rod 144 is driven to lift, so that the paperboard is longitudinally positioned.

The second positioning cylinder 141 may be connected to one of the second connecting rods 144.

Specifically, a piston rod of the second positioning cylinder 141 is connected with a second pushing block 1411, the second pushing block 1411 is connected with a second swinging rod 1412, and the second swinging rod 1412 is connected with the second connecting rod 144 in a swinging manner.

Further, a first mounting plate 1431 is fixedly arranged on the second connecting block 143, the second positioning cylinder 141 is fixedly arranged at one end of the first mounting plate 1431 far away from the discharging end, and the second connecting rod 144 is swingably arranged at the other end of the first mounting plate 1431 through a pin shaft.

Further, a second connecting block 1413 is arranged between the second pushing block 1411 and the second swing rod 1412, the second connecting block 1413 is fixedly connected with the second pushing block 1411, a second mounting block 145 with an opening is arranged on the second connecting block 1413, one end of the second swing rod 1412 is swingably connected with the second mounting block 145 through a pin shaft, and the other end of the second swing rod 1412 is swingably connected with the second connecting rod 144 through a pin shaft.

Plate bodies 104 are arranged on two sides of the positioning frame 10, and the motor base 165, the first fixing block 164 and the mounting block 126 are all fixedly arranged on the plate bodies 104.

Example 2:

as shown in fig. 8-14, the folding mechanism 2 includes a folding frame 20, two slidable mounting tables 21 are provided on the folding frame 20, and a folding block 22 for folding the cardboard into a carton is mounted on the mounting tables 21.

Wherein, the two ends of the folding frame 20 are provided with second adjusting devices 23 in transmission connection with the mounting table 21.

Specifically, two ends of the folding frame 20 are provided with first guide rails 25, and the bottom of the mounting table 21 is provided with a first sliding block 211 slidably sleeved on the first guide rails 25.

Specifically, the second adjusting device 23 includes a second motor 231 and a second lead screw 232 fixedly disposed on a side portion of the hemming frame 20, one end of the second lead screw 232 is in transmission connection with the second motor 231, and the other end of the second lead screw 232 is in threaded connection with the mounting table 21, when the second motor 231 operates, the second lead screw 232 rotates to drive the mounting table 21 to move on the hemming frame 20, and the position of the hemming block 22 fixedly disposed on the mounting table 21 is adjusted.

A cardboard conveying belt 26 is arranged at one end of the hemming frame 20 close to the positioning mechanism 1, and the cardboard conveying belt 26 is fixedly arranged on the hemming block 22.

Further, the outer side of the paper board conveying belt 26 is provided with a paper board conveying motor 261 for driving the paper board conveying belt 26 to operate, and the paper board conveying motor 261 is in transmission connection with the paper board conveying belt 26 through a gear structure.

Wherein, the outer side of the cardboard conveying belt 26 is provided with a guiding block 27, the guiding block 27 is fixedly arranged on the outer side of the cardboard conveying belt 26, and the tail end of the guiding block 27 is fixedly connected with the flanging block 22.

Specifically, the guide block 27 is gradually bent upward from one end close to the positioning mechanism 1 to the other end, and one end connected to the hemming block 22 is perpendicular to the mounting table 21.

Specifically, the folding block 22 includes a first folding block 221 and a second folding block 222, the first folding block 221 is fixedly arranged on the mounting table 21, the top of the second folding block 222 is connected to the top of the first folding block 221, a folding gap 223 is formed between the first folding block 221 and the second folding block 222, and the folding gap 223 is used for a portion of the paper feeding plate bent and folded at the guide block 27 to pass through.

Further, a connecting piece 224 is arranged between the tops of the first folding block 221 and the second folding block 222, and the connecting piece 224 is fixedly connected with the first folding block 221 and the second folding block 222 respectively to connect the first folding block 221 and the second folding block 222 together.

One end of the folding block 22 close to the packaging mechanism 3 is provided with a molding cavity 220, and a molding device 24 is arranged in the molding cavity 220.

Specifically, an accommodating cavity 2220 is formed in the second folding block 222, a first spray gun 225 is arranged at a position close to the forming cavity 220 in the accommodating cavity 2220, and the first spray gun 225 is used for spraying glue on two end portions of the preliminarily formed carton, so that the forming device 24 can fold and adhere to form the carton.

Further, the forming device 24 includes a carton transporting device 241, a carton folding device 242, and a carton pressing device 243, the carton transporting device 241 is disposed between the two installation stations 21, the folding frame 20 is provided with a second guide rail 201, and the carton transporting device 241 is slidably disposed on the second guide rail 201 for transporting the carton on the carton transporting belt 26 into the forming cavity 220.

The carton folding devices 242 are disposed at two ends of the forming cavity 220, and are symmetrically disposed at two sides of the forming cavity 220 with the second guide rail 201 as a center.

The carton pressing device 243 is fixedly disposed in the accommodating cavity 2220, and can swing into the forming cavity 220 to press the carton.

The carton conveying device 241 is provided with at least two groups, wherein one group is used for conveying the cartons to the carton folding device 242 and the carton pressing device 243 for pressing and edge folding bonding treatment, and the other group is used for receiving and conveying the cartons at the carton conveying belt 26 to the next group, so that the edge folding efficiency of the cartons is improved.

Wherein the carton transport device 241 includes a carriage 2411 and a slide motor 2412.

Specifically, the sliding frame 2411 is slidably sleeved on the second guide rail 201, and the sliding motor 2412 is fixedly arranged on the sliding frame 2411.

Specifically, a driving rack 202 is arranged at a position of the positioning frame 20, which is located at a side portion of the first guide rail 201, a driving gear 24121 is sleeved on a motor shaft of the sliding motor 2412, and the driving gear 24121 is meshed with the driving rack 202, so that when the sliding motor 2412 operates, the sliding frame 2411 is driven to move on the driving rack 202, and the carton is transported.

The carton conveying device 241 of the present embodiment is provided with three sets, wherein the front set is used for conveying the cartons at the folding blocks 22 into the forming cavity 220, the middle set is used for conveying the cartons in the forming cavity 220, and the tail set is used for conveying the cartons subjected to folding bonding treatment to subsequent processing equipment for subsequent treatment.

Wherein, the top of the sliding frame 2411 is provided with a supporting plate 24111.

Alternatively, the cartons are shipped resting directly on the support panels 24111.

Optionally, a plurality of suction cups 24112 are disposed on the supporting board 24111 for sucking the bottom of the carton to increase the transportation stability of the carton.

Further, a cylinder 24113 for supplying gas to the suction cup 24112 is also provided on the carriage 2411.

The carton pressing device 243 comprises a connecting fixing plate 2431, a pressing plate 2432, a swing cylinder 2433 and a pressing cylinder 2434.

The connecting fixing plate 2431 is fixedly arranged in the accommodating cavity 2220 of the second flanging block 222, and the pressing plate 2432 is swingably arranged at the bottom of the connecting fixing plate 2431 in a pin manner.

The swing cylinder 2433 is fixedly arranged on the side portion of the connecting fixing plate 2431, a piston rod of the swing cylinder 2433 is connected with the side portion of the pressing plate 2432, the pressing plate 2432 can swing by following the expansion and contraction of the piston rod of the swing cylinder 2433, the swing cylinder is used for pressing a carton, the stability of the carton during folding edge bonding is improved, and the situation that the carton is bonded unstably or cannot be bonded due to the fact that glue at the end of the carton is scraped during folding edge is avoided.

Specifically, a convex block 24322 is arranged at the side of the pressing plate 2432, an insertion block 24331 with an opening is connected to the end of the piston rod of the swing cylinder 2433, and the insertion block 24331 is sleeved on the convex block 24322 and rotatably connected with the convex block 24322 in a pin shaft manner.

The pressing air cylinder 2434 is fixedly arranged on the pressing plate 2432 and used for further pressing the paper box in an abutting mode.

Specifically, the side of the pressing plate 2432 is provided with an inclined mounting block 24321, the pressing cylinder 2434 is fixedly arranged on the mounting block 24321, and a piston rod of the pressing cylinder 2434 penetrates through the mounting block 24321 and the pressing plate 2432 and is telescopically abutted against a pressing carton.

The carton folding device 242 includes a second mounting plate 2421, a first folding block 2422, a second folding block 2423, a first telescopic rod 2424 and a second telescopic rod 2425.

The second mounting plate 2421 is fixedly arranged on the first folding block 221, the first folding rod 2424 is slidably arranged on the second mounting plate 2421, the first folding block 2422 is connected to an end of the first folding rod 2424, and the first folding block 2422 can be pushed by the first folding rod 2424 to telescopically enter the molding cavity 220 from the side of the molding cavity 220.

Specifically, a linear guide rail structure 24211 is arranged at an end of the second mounting plate 2421, the first telescopic rod 2424 is fixedly arranged on the linear guide rail structure 24211, and is driven by the linear guide rail structure 24211 to move on the second mounting plate 2421, so that the folding gluing device is suitable for folding edges of cartons with different specifications and sizes.

The second telescopic rod 2425 is fixedly arranged at the outer side of the first folding block 221, the end of the second telescopic rod 2425 is connected with a rotating shaft 2426, the rotating shaft 2426 is rotatably and fixedly arranged on the second mounting plate 2421, the other end of the rotating shaft 2426 is connected with the second folding block 2423, and the second folding block 2423 is rotatably arranged in the molding cavity 220.

A boss 2211 is fixedly arranged at the outer side of the first folding block 221, the second expansion link 2425 is fixedly arranged on the boss 2211, and a piston rod of the second expansion link 2425 is connected with the rotating shaft 2426 through a third connecting rod 2427.

Specifically, the side of the second mounting plate 2421 is provided with two outward extending plugs 24212, the rotating shaft 2426 includes a first rotating shaft 24261 and a second rotating shaft 24262, the first rotating shaft 24261 is slidably plugged into the two plugs 24212, and further includes a connecting plug 24263, the first rotating shaft 24261 and the second rotating shaft 24262 are respectively fixed at two ends of the connecting plug 24263, and the second rotating shaft 24262 is connected with the second folding plug 2423.

Further, the second rotating shaft 24262 is connected with a base plate 2428, two telescopic support columns 2429 are arranged on the base plate 2428, and the top of the support columns 2429 is connected with the second folding block 2423.

Preferably, the support columns 2429 are sleeved with springs 24291.

A supporting block 203 is arranged between the two carton folding devices 242 on the first folding block 221, and is used for supporting the carton when the carton transporting device 241 transports the carton.

Example 3:

as shown in fig. 15, the packing mechanism 3 includes a packing frame 30, and a guiding device 31 is disposed on the packing frame 30, and the guiding device 31 is used for guiding the cartons from the folding frame 20 to the packing frame 30 for packing the products.

Specifically, the guiding device 31 includes a guiding motor 311, a plurality of guiding rollers 312 and a guiding rod 313, the guiding rollers 312 are rotatably erected on the packaging frame 30, the guiding motor 311 is arranged on the packaging frame 30 and is in transmission connection with the guiding rollers 312 through a gear chain structure, the guiding rod 313 is erected above the guiding rollers 312, and one end of the guiding rod is arranged close to the molding cavity 220.

Further, the bottom of the packaging frame 30 is further provided with a deviation correcting device 32, the deviation correcting device 32 comprises a deviation correcting motor 321, a deviation correcting screw rod 322 and a deviation correcting plate 323, the deviation correcting motor 321 is arranged at the side of the packaging frame 30, the deviation correcting screw rod 322 is in transmission connection with the deviation correcting motor 321 through a gear structure, and the deviation correcting plate 323 is slidably sleeved on the deviation correcting screw rod 322.

Furthermore, the two sides of the deviation rectifying screw rod 322 are provided with deviation rectifying guide rods 324, and the deviation rectifying guide rods 324 penetrate through the deviation rectifying plate 323.

Furthermore, the deviation-correcting screw rod 322 and the deviation-correcting guide rod 324 are both fixedly arranged at the bottom of the packaging frame 30.

The deviation correcting device 32 is used for correcting and guiding the cartons to a specific area, so that products can be conveniently placed in the cartons by manpower or a mechanical arm.

Example 4:

as shown in fig. 16-21, the box sealing mechanism 4 includes a box sealing frame 40, a box sealing device 41 is disposed on the box sealing frame 40, and a retractable carton clamping device 42 is disposed below the box sealing device 41.

The box sealing frame 40 includes a first box sealing frame 401 and a second box sealing frame 402, wherein the first box sealing frame 401 and the second box sealing frame 402 are both provided with a mounting frame 403, the mounting frame 403 is provided with the box sealing device 41, the packaging device 41 on the first box sealing frame 401 is used for sealing the tail end of the carton, and the packaging device 41 on the second box sealing frame 402 is used for sealing the front end of the carton.

Specifically, a plurality of reset rollers 4021 are arranged at the tail end of the second carton sealing frame 402, and the rotation direction of the reset rollers 4021 is opposite to the processing direction, so that the cartons are conveyed back into the second carton sealing frame 402, the front ends of the cartons are sealed, manual operation or equipment is not needed to rotate the cartons, and the carton sealing efficiency is improved.

Further, the reset roller 4021 is driven by a reset motor 4022 arranged at the bottom of the second box sealing frame 402, and is in transmission connection specifically through a gear chain structure or a gear belt structure.

Further, the box sealing device 41 includes a box sealing block 411, a pressing block 412, a box sealing cylinder 413 and a pressing cylinder 414, the box sealing cylinder 413 and the pressing cylinder 414 are both disposed on a side wall of the end of the first mounting frame 121, the box sealing cylinder 413 is located on the outer side, the pressing cylinder 414 is located on the inner side, a piston rod of the box sealing cylinder 413 is connected to the box sealing block 411, and a piston rod of the pressing cylinder 414 is connected to the pressing block 412.

Furthermore, both sides of the box sealing cylinder 413 and both sides of the pressing cylinder 414 are provided with box sealing guide blocks 415, and movable box sealing guide rods 416 are inserted into the box sealing guide blocks 415.

The piston rods of the box sealing cylinder bodies 413 are connected with box sealing connecting blocks 417, and the box sealing connecting blocks 417 are fixedly connected with the box sealing blocks 411.

The joint block 417 and the block 411 may be connected by welding, screws, pins, screws or bolts.

The ends of the packing guide rods 416 located at both sides of the packing cylinder 413 are connected to the packing connection block 417.

Wherein, the sealing guide rods 416 positioned at both sides of the pressing cylinder 414 are connected with the pressing block 412.

The cylinder block 413 and the block guide 415 on both sides thereof are inclined inward of the mounting frame 403.

When the carton enters the first carton sealing frame 401, after the carton is clamped by the carton clamping device 42, the pressing block 412 presses the top of the carton under the pushing of the pressing cylinder 414, and the carton sealing block 411 performs a carton sealing process on the end of the carton under the pushing of the carton sealing cylinder 413.

The carton clamping device 42 comprises a first baffle 421, a second baffle 422, a first fixing plate 423, a third motor 424, a third screw rod 425 and a third sliding block 426, the first baffle 421 and the second baffle 422 are respectively arranged at two side parts of the box sealing frame 40, the first fixing plate 423 is arranged at one side of the box sealing frame 40, the first baffle 421 is connected with the first fixing plate 423 in a lifting manner, the third motor 424 is arranged at one side of the box sealing frame 40, a motor shaft of the third motor 424 is in transmission connection with the third screw rod 425, the third sliding block 426 is slidably sleeved on the third screw rod 425, and the second baffle 422 is fixed on the third sliding block 426.

Further, a second frame body 404 is arranged at the bottom of each of the first box sealing frame 401 and the second box sealing frame 402, and the carton clamping device 42 is fixedly arranged on the second frame body 404.

Further, the first fixing plate 423 is fixedly disposed on the second frame body 404 and located at a side of the first box-sealing frame 401 and the second box-sealing frame 402.

Further, a third guide rail 4041 is arranged at the bottom of the second frame body 404, and a third slider 4221 matched with the third guide rail 4041 is arranged at the bottom of the second baffle 422.

The side of the second frame body 404 is provided with a motor mounting plate 4042, the third motor 424 is fixedly arranged on the motor mounting plate 4042, and the end of the third screw rod 425 is inserted into the motor mounting plate 4042 and is in transmission connection with the third motor 424 through a gear belt structure.

An opening 4231 for the third motor 424 to pass through is formed on the first fixing plate 423.

A plurality of grooves are formed in the tops of the first baffle 421 and the second baffle 422, a plurality of carton conveying rollers are arranged on the first box sealing frame 401 and the second box sealing frame 402, and the carton conveying rollers are accommodated in the grooves.

A lifting cylinder 427 is arranged at the bottom of the first baffle 421, a second guide rail 4232 is arranged at the back of the first fixing plate 423, and a fourth slider 4212 matched with the second guide rail 4232 is arranged on the first baffle 421.

In order to perform the box sealing treatment on the side portions of the cartons, at least one box sealing device 41 can be arranged on the side portions of the mounting frames 403 on the first box sealing frame 401 or the second box sealing frame 402, and the number of the arranged box sealing devices can be adjusted according to the size of the side portions of the cartons.

Wherein, the front end of the first box sealing frame 401 is provided with a second spray gun 405 for spraying glue on the side of the carton.

Third spray guns 406 are arranged on the first box sealing frame 401 and the second box sealing frame 402 at positions corresponding to the sealing device 41, the third spray guns 406 are connected with a spray gun adjusting device 44, and the third spray guns 406 are used for spraying glue on the side portions of the cartons.

Further, the spray gun adjusting device 44 includes an adjusting motor 441, an adjusting screw 442, an adjusting slider 443, an adjusting guide rod 444 and a third plate body 445, the third plate body 445 is fixedly disposed on both sides of the first enclosure frame 12 and the second enclosure frame 13, the adjusting motor 441 is fixedly disposed on the third plate body 445, both ends of the adjusting screw 442 are rotatably inserted into the third plate body 445, and at least one end of the adjusting screw is in transmission connection with the adjusting motor 441, the adjusting slider 443 is slidably sleeved on the adjusting screw 442, the adjusting guide rod 444 penetrates through the adjusting slider 443, both ends of the adjusting screw 443 are respectively inserted into the third plate body 445, and the third spray gun 406 is swingably disposed on the adjusting slider 443.

Furthermore, an arc-shaped groove 4431 is formed in the adjusting slider 443, and the third spray gun 406 is connected with the adjusting slider 443 by a bolt, a pin or a screw, and swings on the arc-shaped groove 4431 by an angle.

The adjusting motor 441 and the adjusting screw rod 442 are in transmission connection through a gear chain.

The first box sealing frame 401 and the second box sealing frame 402 are provided with third positioning devices 43 for blocking cartons, the third positioning devices 43 located at the first box sealing frame 401 are used for blocking the tail ends of the cartons, and the third positioning devices 43 located at the second box sealing frame 402 are used for blocking the front ends of the cartons.

Further, the third positioning device 43 includes a second positioning baffle 431, a fourth plate 432 and a lifting cylinder 433, which are capable of being lifted, the fourth plate 432 is disposed between the third plates 445 and is fixedly connected to the two third plates 445, the lifting cylinder 433 is fixedly disposed on the fourth plate 432, a piston rod of the lifting cylinder is connected to the second positioning baffle 431, and the second positioning baffle 431 is driven to lift by the extension of the lifting cylinder.

Example 5:

as shown in fig. 22, a method for producing a multi-size carton packaging line according to the above embodiments 1 to 5 is further included, which includes the following steps:

a1: the paperboard enters a first conveying device 11 of the positioning mechanism 1, and the side and the end of the paperboard are respectively positioned by a first positioning device 13 and a second positioning device 14 and then conveyed into the edge folding mechanism 2;

a2: the folding blocks 22 on the folding mechanism 2 carry out folding processing on two sides of the paper board, so that the paper board is preliminarily formed into a shape of a paper box, and the paper board is conveyed to a forming device 24 to carry out folding bonding processing on two ends of the paper box and then conveyed into the packaging mechanism 3 under the guiding action of a guiding device 31;

a3; after the paper box enters the packaging mechanism 3, a needed product is placed into the paper box by a manual or mechanical arm mode and then conveyed into the box sealing mechanism 4;

a4: the box sealing device 41 on the box sealing frame 40 of the box sealing mechanism 4 performs folding and sealing processing on two ends of the carton.

Further, the step a4 further includes the following steps:

b1: the carton enters the first carton sealing frame 401, the third positioning device 43 blocks the tail end of the carton, the carton clamping device 42 clamps the carton, the carton sealing device 41 performs carton sealing treatment on the tail end of the carton, and then the carton is conveyed into the second carton sealing frame 402;

b2: the carton enters the tail end of the second carton sealing frame 402 and enters the second carton sealing frame 402 again under the transportation action of the reset roller 4021, the third positioning device 43 blocks the front end of the carton, the carton clamping device 42 clamps the carton, and the carton sealing device 41 seals the front end of the carton.

The positioning mechanism 1 comprises the following steps of:

firstly, a paperboard enters a first conveying device 11 of a positioning mechanism 1 and is driven by the first conveying device 11 to move;

then, the first positioning cylinder 131 on the first positioning device 13 located at the side of the sliding conveyor belt 112 operates to push the first positioning pushing plate 142 to displace on the second fixing plate 133 until the first positioning pushing plate 142 and the positioning baffle 15 respectively abut against two sides of the paperboard, thereby completing the transverse positioning of the paperboard;

finally, the cardboard is transported to the end under the driving of the first transporting device 11, and the second positioning cylinder 141 on the second positioning device 14 at the end of the fixed transporting belt 111 and the sliding transporting belt 112 operates to push the second positioning stopper 142 to ascend to block the cardboard from continuing moving, so as to complete the longitudinal positioning of the cardboard, and the cardboard can accurately enter the folding mechanism 2.

The folding mechanism 2 folds the paper boards into cartons by the following steps:

firstly, the paper board is conveyed from the first conveying device 11 of the positioning mechanism 1 to the paper board conveying belt 26 of the folding mechanism 2 for conveying, after the two sides of the paper board are folded for the first time through the curved surface of the guide block 27, the bottom of the paper board is conveyed on the paper board conveying belt 26 and enters the folding block 22 from the bottom of the folding block 22, and the two side parts enter the folding block 22 from the folding gap 223;

then, after the first spray gun 225 in the second folding block 222 sprays glue on the two end parts of the paperboard, the carton conveying device 241 conveys the paperboard after the first folding to the forming cavity 220 from the paperboard conveying belt 26;

then, when the tail end of the paperboard enters the forming cavity 220, the carton conveying device 241 stops moving, the swing cylinder 2433 of the carton pressing device 243 operates to push the pressing plate 2432 to swing until the tail end of the paperboard is pressed against the upper surface of the paperboard, the pressing cylinder 2434 operates to extend and press the piston rod of the pressing cylinder to the upper surface of the paperboard, the first folding plate 2422 of the carton folding device 242 folds the two sides of the paperboard inwards under the pushing of the first telescopic rod 2424, and the second folding plate 2423 folds the tail end of the paperboard upwards and bonds the two sides of the paperboard under the pushing of the second telescopic rod 2425;

then, the carton conveying device 241 resumes to operate to continue conveying the carton with the formed tail end until the front end of the carton is moved to the tail end of the forming cavity 220, and then stops moving, and the carton pressing device 243 and the carton folding device 242 repeat the above operations to perform edge folding forming on the front end of the carton;

finally, the cartons formed at both ends are transported by carton transport device 241 into packaging mechanism 3.

The packaging steps of the carton by the packaging mechanism 3 are as follows:

firstly, the guiding rods of the guiding device 31 guide the carton to the deviation correcting device 32;

then, the deviation correcting plate 323 of the deviation correcting device 32 is driven to a specific position of the packaging frame 30 by the rotation of the deviation correcting screw rod 322;

finally, the products to be packaged are placed into the cartons in a manual or mechanical mode, and then are placed into the transport frame 5 to be transported to the box sealing mechanism 4 for box sealing treatment.

The carton sealing treatment of the carton box sealing mechanism 4 comprises the following steps:

firstly, the carton enters the first carton sealing frame 401, the tail end of the carton is blocked by the third positioning device 43, the second baffle 422 of the carton clamping device 42 is driven by the third slider 426 to clamp two side parts of the carton, so that the other side of the carton is abutted to the first baffle 421, the third spray gun 405 sprays glue on the tail end of the carton, the pressing block 412 on the carton sealing device 41 on the first carton sealing frame 401 is pushed by the pressing cylinder 414 to press the top of the carton, and the carton sealing block 411 is pushed by the carton sealing cylinder 413 to press and adhere the top of the carton to the tail end of the carton;

finally, the carton is conveyed into the second carton sealing frame 402, the reset roller 4021 at the tail end of the second carton sealing frame 402 conveys the carton back to the front end of the second carton sealing frame 402, the front end of the carton is blocked by the third positioning device 43, and then the steps are repeated to seal the front end of the carton.

When the front end or the rear end of the carton is sealed, a sealing device 41 for sealing the side surface of the carton is also provided on the side of the mounting frame 403.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The multi-specification carton packaging production line is characterized by comprising a positioning mechanism (1), a folding mechanism (2), a packaging mechanism (3) and a carton sealing mechanism (4) which are sequentially arranged along the processing direction and are mutually communicated, wherein the positioning mechanism (1) comprises a positioning frame (10), a first conveying device (11) and a first adjusting device (12) are arranged on the positioning frame (10), and the first adjusting device (12) is in transmission connection with the first conveying device (11) and is positioned on two sides of the first conveying device (11) and used for adjusting the positions of the two sides of the first conveying device (11) on the positioning frame (10); the folding mechanism (3) comprises a folding frame (20), an installation table (21) and a folding block (22) are arranged on the folding frame (20), the folding block (22) is fixedly arranged on the installation table (21), second adjusting devices (23) are arranged on two sides of the folding frame (20), the second adjusting devices (23) are connected with the installation table (21) and used for adjusting the positions of the installation table (21) on the folding frame (20), and a forming device (24) is arranged at the tail end of the folding mechanism (2) and used for carrying out folding forming on two ends of a carton; the packaging mechanism (3) comprises a packaging frame (30), a guide device (31) is arranged on the packaging frame (30), and the guide device (31) is used for guiding the carton from the folding frame (20) to the packaging frame (30); the carton sealing mechanism (4) comprises a carton sealing frame (40), two carton sealing devices (41) are arranged on the carton sealing frame (40), a telescopic carton clamping device (42) is arranged below the carton sealing devices (41), the carton sealing devices (41) are used for sealing two ends of a carton, and the carton clamping device (42) is used for clamping and fixing the carton below the carton sealing devices (41).

2. The multi-format carton packaging line according to claim 1, wherein the first transporting device (11) comprises a fixed conveyor belt (111) fixed on the positioning frame (10) and a sliding conveyor belt (112) slidably arranged on the positioning frame (10), the sliding conveyor belt (112) is positioned at two side portions of the fixed conveyor belt (111), and the first adjusting device (12) is connected with the sliding conveyor belt (112).

3. The multi-specification carton packaging production line according to claim 2, wherein a first slidable positioning device (13) and a second liftable positioning device (14) are arranged on the first transportation group device (11), the first positioning device (13) is arranged at the outer side of one of the sliding conveyor belts (112), a positioning baffle (15) matched with the first positioning device (13) is arranged at the outer side of the other sliding conveyor belt (112), the second positioning device (14) is arranged at one end of the fixed conveyor belt (111) and one end of the sliding conveyor belt (112) close to the folding mechanism (3), and the first positioning device (13) and the second positioning device (14) are used for positioning cartons through a motor connecting rod structure.

4. The multi-specification carton packaging production line according to claim 1, wherein the second adjusting device (23) comprises a second motor (231) and a second lead screw (232) which are fixedly arranged on the side portion of the flanging frame (20), one end of the second lead screw (232) is in transmission connection with the second motor (231), the other end of the second lead screw is in threaded connection with the mounting table (21), when the second motor (231) operates, the second lead screw (232) rotates to drive the mounting table (21) to displace on the flanging frame (20), and the position of the flanging block (22) fixedly arranged on the mounting table (21) is adjusted.

5. The multi-specification carton packaging production line according to claim 4, wherein first guide rails (25) are arranged at two ends of the positioning frame (20), and a first sliding block (211) which is slidably sleeved on the first guide rails (25) is arranged at the bottom of the mounting table (21).

6. The multi-format carton packaging line of claim 1, wherein the carton clamping device (42) comprises a first baffle plate (421), a second baffle plate (422), a first fixing plate (423), a third motor (424), a third screw (425) and a third slider (426), the first baffle (421) and the second baffle (422) are respectively arranged at the two side parts of the box sealing frame (40), the first fixing plate (423) is arranged on one side of the box sealing frame (40), the first baffle plate (421) is connected with the first fixing plate (423) in a lifting manner, the third motor (424) is arranged on one side of the box sealing frame (40), the motor shaft of the motor is in transmission connection with the third screw rod (425), the third sliding block (426) is slidably sleeved on the third screw rod (425), and the second baffle plate (422) is fixed on the third sliding block (426).

7. The multi-specification carton packaging production line according to claim 6, wherein the carton sealing frame (40) comprises a first carton sealing frame (401) and a second carton sealing frame (402) which are sequentially arranged along a processing direction, each of the first carton sealing frame (401) and the second carton sealing frame (402) is provided with a mounting frame (403), the carton sealing device (41) is arranged on the mounting frame (403), a third positioning device (43) is arranged on each of the first carton sealing frame (401) and the second carton sealing frame (402) at a position below the carton sealing device (41), and the third positioning device (43) is used for blocking the carton below the carton sealing device (41) so that the carton clamping device (42) can clamp the carton, and the carton sealing device (41) can fold and seal the two ends of the carton.

8. The multi-specification carton packaging production line according to claim 7, characterized in that a plurality of reset rollers (4021) are arranged at the tail end of the second carton sealing frame (402), the transport direction of the reset rollers (4021) is opposite to the processing direction, the reset rollers are used for transporting the carton subjected to the tail end sealing treatment back into the second carton sealing frame (402) to carry out folding sealing treatment on the front end of the carton, a third positioning device (43) on the second carton sealing frame (402) is used for blocking the front end of the carton, and a third positioning device (43) on the first carton sealing frame (401) is used for blocking the tail end of the carton.

9. A production method of a multi-specification carton packaging production line is characterized by comprising the following steps:

a1: the paperboard enters a first conveying device (11) of the positioning mechanism (1), and the side part and the end part of the paperboard are respectively positioned by a first positioning device (13) and a second positioning device (14) and then conveyed into the edge folding mechanism (2);

a2: the folding blocks (22) on the folding mechanism (2) carry out folding processing on two sides of the paper board, so that the paper board is preliminarily formed into a shape of a paper box, and the paper board is conveyed into the packaging mechanism (3) through the guiding action of the guiding device (31) after being conveyed to the forming device (24) to carry out folding bonding processing on two ends of the paper box;

a3; after the paper box enters the packaging mechanism (3), the needed products are placed into the paper box by a manual or mechanical arm mode and then conveyed into the box sealing mechanism (4);

a4: the carton sealing device (41) on the carton sealing frame (40) of the carton sealing mechanism (4) carries out folding and carton sealing treatment on two ends of the carton.

10. The method of manufacturing a multi-format carton packaging line according to claim 9, wherein the step a4 further comprises the steps of:

b1: the carton enters a first carton sealing frame (401), the third positioning device (43) blocks the tail end of the carton, the carton clamping device (42) clamps the carton, the carton sealing device (41) seals the tail end of the carton, and then the carton is conveyed into a second carton sealing frame (402);

b2: the carton enters the tail end of the second carton sealing frame (402), and enters the second carton sealing frame (402) again under the transportation action of the reset roller (4021), the third positioning device (43) blocks the front end of the carton, the carton clamping device (42) clamps the carton, and the carton sealing device (41) seals the front end of the carton.