CN115783399A - Reversing device, packaging machine and packaging method - Google Patents

Abstract

The invention discloses a reversing device, a packaging machine and a packaging method. The reversing device includes: a conveyor belt with a conveying surface, which is divided into a preparation area, a reversing area and a converging area in turn along its conveying direction. There is an input center line on the conveying surface; a reversing assembly is arranged above the reversing area, and the reversing assembly includes a first stopper, two first stoppers are located on both sides of the input centerline, and the lower end of the first stopper It can extend downwards into or out of the reversing area, and the extension direction of the preparation area is directly opposite to the first stopper extending into the reversing area; the feeding assembly, two feeding assemblies are arranged on both sides of the conveyor belt and enclose the feeding channel , the width of the feeding channel gradually narrows from the direction of the reversing area to the converging area. The invention not only enables the material to automatically realize the reversing during the conveying process, but also ensures that the commodity code on the side of the material can be definitely diverted to between two adjacent materials. time, reduce manpower waste, and improve production efficiency.

Description

A reversing device, a packaging machine and a packaging method

technical field

The invention relates to the field of packaging equipment, in particular to a reversing device, a packaging machine and a packaging method.

Background technique

Some promotional shopping malls often pack multiple packs of sanitary napkins into a whole pack, and paste the total product code on the whole pack for sale, but a side of a single pack of sanitary napkins also has a product code. Personnel need to arrange and arrange each package of sanitary napkins in a straight line in advance to ensure that the position of the commodity code faces between two adjacent sanitary napkin packaging bags before subsequent feeding and packaging can be carried out. The process of arranging and feeding is inefficient. At the same time, the orientation of sanitary napkins is also prone to errors, resulting in the wrong orientation of the product code of a single pack of sanitary napkins, which may easily lead to mis-scanning in the subsequent machine and sales process.

Contents of the invention

The purpose of the present invention is to provide a reversing device, a packaging machine and a packaging method to solve one or more technical problems in the prior art, and at least provide a beneficial option or create conditions.

The solution that the present invention solves its technical problem is:

A reversing device, comprising: a conveyor belt with a conveying surface, the conveying surface is sequentially divided into a preparation area, a reversing area and a converging area along its conveying direction, and the conveying surface has an input centerline; a reversing assembly, It is arranged above the reversing area, the reversing assembly includes a first stopper, two first stoppers are located on both sides of the input centerline, and the lower ends of the first stoppers can face downward Extending into or out of the reversing area, the extension direction of the preparation area is directly opposite to the first stopper extending into the reversing area; the feeding assembly, two of the feeding assemblies are arranged on the conveyor belt The two sides of the feeder are surrounded by a confluence channel, and the width of the confluence channel gradually decreases from the direction of the diversion zone to the confluence zone.

The technical solution has at least the following beneficial effects: when the materials are conveyed one by one from the preparation area to the reversing area, the center of the material conveying track and the input center line of the conveying surface overlap each other, and the two first stoppers can be offset against each other on the material On both sides of the center, according to the individual action of any first stop, the material can be driven by the friction of the conveyor belt to achieve forward or reverse horizontal conversion around the first stop. The lanes are arranged in order and are continuously conveyed along the conveying direction, which facilitates the realization of the subsequent packaging process. The invention can adjust the timing of the two first stoppers extending into the reversing area according to the packing quantity of the material, so as to ensure the period of the two first stoppers. Staggered into the reversing area, not only makes the material automatically realize the reversing during the conveying process, but also ensures that the commodity code on the side of the material can be deferentially diverted between two adjacent materials, reducing manpower waste and improving production efficiency. Prevent the false scanning of combined products in the subsequent upgrade and sales process.

As a further improvement of the above technical solution, a roller is sheathed on the lower end of the first stop, and the rotation axis of the roller extends up and down. The side of the material facing the conveying direction of the conveying surface can directly touch the rollers, and the rollers that rotate with the material movement can reduce the friction during the material conversion process and improve the material conversion effect.

As another improvement of the above technical solution, the material feeding assembly includes a partition and a pressing piece, the partitions of the two feeding assemblies form a feeding channel, and the pressing piece has a telescopic connection end, so The connecting end is connected to a side of the partition plate away from the feeding channel. According to the width and length of the material in the conveying process, the staff can stretch and adjust the connecting end, and then change the width of the feeding channel to ensure that the feeding channel provides horizontal conversion space for the material, and make the downstream part of the feeding section The width matches the conveying width of the material after conversion. The materials arranged regularly along the feeding section facilitate the subsequent packaging process. The adjustable feeding channel is suitable for packaging sanitary napkins of various sizes and specifications, improving applicability.

As another improvement of the above-mentioned technical solution, the present invention also includes a second blocking head, the downstream of the converging area joins the turning area, the second blocking head vertically extends into the turning area, and the converging area The extending direction is facing the second stopper. The packaging materials are continuously conveyed from the converging area to the diverting area. When the material touches the second stopper, the distance between the second stopper and the inner wall of one side of the feeding channel occupies about 1/3 of the width of the feeding channel. Under the frictional force, the direction of the side wall of the feeding channel on the other side is changed, so that the material can be turned 90° again, and then the direction of the commodity code on the side wall of the material can be adjusted, which is convenient for subsequent packaging, and the structure is simple and reliable.

The present invention also provides: a packaging machine, which includes a frame and the above-mentioned reversing device, and the frame is provided with a stacking platform, a packing platform and a bag sealing platform arranged sequentially from the back to the front, including: Packages, which can push the materials accumulated at the conveying end of the conveying surface into the stacking platform; bag feeding devices, which can convey a single packaging bag to the packing platform; opening devices, which have adsorption parts, The suction part can suck open the pocket of the packaging bag on the packing platform; the bag stretching device has a stretchable end that can expand and shrink, and the shrinkable stretch end can extend into the bag Open the packaging bag in the mouth, and the opened end of the bag will form a feeding port, and the front and rear ends of the feeding port are respectively connected to the inner cavity of the packaging bag and the stacking platform; above the stacking platform, packing platform and bag sealing platform and reset backwards; a sealing device, which can heat seal the bag mouth located in the bag sealing platform.

The technical solution has at least the following beneficial effects: the horizontally converted materials are piled up at the conveying end of the conveying surface in sequence along the conveying direction of the conveying belt, and the pushing package pushes the materials piled up front and back in the same group into the stacking platform, and then enters the bag The device feeds individual packaging bags onto the packaging platform one by one and lays them flat. The opening device includes an adsorption piece, which can suck open the opening of the packaging bag on the packaging platform, so that the opening of the packaging bag is facing backwards and facing the push head. The bag supporting end of the bag supporting device extends into the opening of the packaging bag and opens to expand the opening of the packaging bag to ensure that the materials can enter. Moreover, the push head can move back and forth and pass through the stacking platform, packing platform and sealing platform in sequence. Above the bag platform, when the push head moves forward, the material can be pushed from the stacking platform into the packaging bag on the packaging platform, and then the packaging bag is separated from the bag support end under the thrust of the push head and moves toward the It is moved forward to the bag sealing platform, and the sealing device heat-seals the mouth of the packaging bag on the bag sealing platform to complete the packaging of the entire group of materials and improve the automation effect.

As a further improvement of the above technical solution, the sealing device includes a cutter, a pressing assembly, and a side pull member arranged in sequence along the material conveying direction, there is a sealing gap between the packing platform and the bag sealing platform, and the sealing The surface of the gap flush with the sealing bag platform is the reference plane, and the two side pull members are located on both sides of the sealing gap, and the side pull members have clamping ends facing the reference plane, and the two side pull members are located on both sides of the sealing gap. The clamping ends on the side pull members can be close to or far away from each other, and the pressing assembly includes an upper pressing block and a lower pressing block respectively located on the upper and lower sides of the reference surface, and the upper pressing block and the lower pressing block can be At the same time close to or away from the reference plane, a heating wire is arranged on the top surface of the lower pressing block, and the heating wire is perpendicular to the material conveying direction, and the frame is attached to the reference plane to be provided with a feeding trough, and the The cutting knife is facing downwards to the opening of the cutting chute. After the packaging bag is pushed into the bag sealing platform with the push head, the clamping end clamps and pulls the two sides of the packaging bag close to the bag mouth to ensure that the bag mouth is flattened, reducing the folds of the bag mouth, and facilitating the pressure of the pressing component on the bag mouth Tight and heat-sealed to prevent pressure leakage and crookedness of the press-fit assembly on the bag mouth, improve the stability of the sealing quality of the product packaging bag, and at the same time, the part that grows out of the heat-sealed part and the sealing gap can be cut off by a cutter , The cut off material falls into the chute for collection, which improves the sealing effect and efficiency of the bag opening.

As a further improvement of the above technical solution, the pressing assembly includes a driving member, a connecting rod, a pull rod a and a pull rod b, and the upper pressing block and the lower pressing block are both slidably connected to the frame along the up and down direction, The driving member rotates to drive the middle part of the connecting rod, the rotation axis of the connecting rod extends along the left and right direction, the pull rod a and the pull rod b respectively rotate and connect the front and rear ends of the connecting rod, and the upper end of the pull rod a rotates The upper pressing block is connected, and the upper end of the pull rod b is rotatably connected with the lower pressing block. The driving part drives the middle part of the connecting rod to rotate and swing. When the front end of the connecting rod moves up or down, the rear end of the connecting rod moves down or up correspondingly. The swinging connecting rod pulls the pull rod a and the pull rod b to move simultaneously. Make the upper pressing block and the lower pressing block slide close to or away from the frame at the same time, improve the movement stability of the upper pressing block and the lower pressing block, and ensure the stroke length at the same time, and the upper pressing block and the lower pressing block can be realized through a single drive Blocks are driven at the same time, reducing production costs.

The present invention also provides: a packaging method, which is applied to the above-mentioned packaging machine, comprising the following steps:

Step 1. When the material is transported along the conveying surface, the center line coincides with the input center line. The two first stoppers correspond to about 1/3 and 2/3 of the material width respectively. The number of materials packed together in each group is n pieces , when the 1st or 1st to (n-1)th material of the same group enters the reversing area along the reserve area, a first stopper extends into the reversing area, so that the corresponding material can be converted 90 in the direction close to the input center line °, when the 2nd to nth or nth materials of the same group enter the reversing area along the preparation area, the first stop is raised, and the other first stop is extended into the reversing area, so that the corresponding material can move toward The direction close to the input center line is reversely converted by 90°; step 2, the converted materials gradually converge with the reduction of the conveying surface along the feedway, and accumulate sequentially along the conveying direction.

This technical solution has at least the following beneficial effects: the side with the input center line on the first block is the turning side, when the first block extends into the reversing area, because the first block is roughly against the material 1/3, so that about 2/3 of the material is located on the turning side of the first stop. Under the friction of the conveying surface, the part of the material on the turning side overcomes the pressure on the other side of the first stop. Part of the friction resistance makes the material transfer along the first stop on the turning side. At the same time, the width of the feeding channel gradually narrows along the conveying direction. Packaging, under the action of the first stopper and the second stopper, automatically realizes the forward and reverse conversion of the material, ensuring that the commodity code on the side of the material can be definitely shifted between two adjacent materials, reducing manpower waste and improving Productivity.

As a further improvement of the above technical solution, the downstream of the merging zone is joined to the diverting zone, and the second stopper extends into the turning zone and faces the extension direction of the merging zone, so that the materials being transported are turned by 90°. Among the materials in the same group, the commodity codes of the first package material and the last package material converted by the first stopper and the second stopper are respectively located on the opposite side of the position, and multiple materials are sequentially converted at the same angle by the second stopper , to ensure that the grouped materials are arranged in a good position before being packaged into the bag, and the concealment of the commodity code on each material is completed.

As another improvement of the above-mentioned technical solution, the present invention also includes the following steps: step 3, push the package to push the materials accumulated at the conveying end of the conveying surface into the stacking platform; step 4, the opening device will be positioned at the packing The bag opening of the single packaging bag on the platform is opened, and the bag stretching device drives the shrinking bag stretching end to extend forward into the pocket opening; step 5, the bag stretching end is opened and the pocket opening is stretched, and the bag stretching device drives the opened stretching bag The end is reset backwards, so that the packaging bag is always placed on the bag support end; step 6, the pile head pushes the materials on the stacking platform into the packaging bag forward, and continues to push forward, so that the packaging bag is separated from the bag support end and is Push it into the sealing bag platform, and the packaging bag will be sealed and output by the sealing device. The bag-supporting end moves back and forth and puts on the packaging bag, so that the inner cavity of the packaging bag and the feeding port are connected to each other, and the pushing part automatically pushes the material into the stacking platform, and the material is located on the moving track of the pushing head, so that the pushing head moves forward When moving, the material can be directly pushed into the packaging bag, and then the packaging bag is separated from the bag support end under the continuous advancement of the push head and enters the bag sealing platform forward, and finally the bag is heat-sealed by the sealing device and then output directly to ensure the packaging The product code on the side of the last material can be hidden between two adjacent materials in the same group, improving the automation effect and improving production efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings that need to be used in the description of the embodiments. Apparently, the described drawings are only some embodiments of the present invention, not all embodiments, and those skilled in the art can obtain other designs and drawings based on these drawings without creative work.

Fig. 1 is a structural diagram of a reversing device provided by an embodiment of the present invention;

Fig. 2 is a structural diagram including a steering area in a reversing device provided by an embodiment of the present invention;

Fig. 3 is a top view of a packaging machine provided by an embodiment of the present invention;

Fig. 4 is a partial structural diagram of a packaging machine provided by an embodiment of the present invention, which includes a bag-holding device and a pushing head;

Fig. 5 is a structural diagram of a sealing device provided by an embodiment of the present invention;

Fig. 6 is a structural diagram of a side pull provided by an embodiment of the present invention.

In the accompanying drawings: 110-conveyor belt, 111-conveying surface, 112-preparation area, 113-reversing area, 114-merging area, 120-first stop, 121-roller, 131-partition, 132-pressure piece, 133-Connecting rod, 210-Steering area, 220-Second block head, 230-Push package, 231-Push plate, 232-Stuff plate, 310-Rack, 311-Stacking platform, 312-Packing platform, 313-Bag sealing platform, 320-Pushing head, 330-Bag feeding device, 331-Input belt, 332-Dial, 333-Bag taking component, 340-Absorbing parts, 350-Bag supporting device, 360-Sealing device, 361 -limit plate, 362-discharge conveyor belt, 410-feed inlet, 420-installation plate, 430-moving plate, 440-fixed plate, 450-adjustment component, 460-pressure plate, 510-cutter, 521-upper Press block, 522-lower press block, 523-heating wire, 530-side pull piece, 540-sealing gap, 550-feeding trough, 561-tie rod a, 562-tie rod b, 610-motor, 620-claw cylinder , 630-turntable, 640-transmission rod a, 650-transmission rod b.

Detailed ways

The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the present invention can be combined interactively on the premise of not conflicting with each other.

In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, several means one or more, and multiple means two or more. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

Referring to Fig. 1, the reversing device includes a conveyor belt 110, a reversing assembly and a feeding assembly. The conveyor belt 110 has a conveying surface 111 that is continuously conveyed. Zone 113 and confluence zone 114, there is an input center line on the conveying surface 111, the center of the material conveying track and the input center line coincide with each other, and the reversing assembly is arranged above the reversing area 113, and the reversing assembly includes a first stopper 120 and a first cylinder , the position of the first cylinder and the conveyor belt 110 are fixed to each other, the first stopper 120 extends in the vertical direction, the first cylinder can drive the first stopper 120 to move up and down, so that the lower end of the first stopper 120 can extend downwards or withdraw In the reversing area 113, the first stoppers 120 in the two reversing assemblies are respectively located on both sides of the input center line, and the two first stoppers 120 can periodically extend into the reversing area 113 in a staggered manner, while the reserve area 112 The extension direction is facing the first block 120 extending into the reversing area 113, so that the packaging materials output from the preparation area 112 can be against the first block 120. There are two feeding assemblies, two feeding assemblies It is arranged on both sides of the conveyor belt 110 and forms a feeding channel between them. The feeding channel extends along the conveying direction of the conveyor belt 110 , and the width of the feeding channel gradually decreases from the direction of the reversing area 113 to the converging area 114 .

It should be noted that the width of the end of the feeding channel close to the reversing area 113 is relatively large, providing a conversion space for the material, and the width of the part of the feeding channel close to the converging area 114 matches the conveying width of the converted material, and the converted material Arranged neatly along the gradually gathered feeding channel and continuously conveyed along the conveying direction, which is convenient for the realization of the subsequent packaging process. In addition, the conveying width of the preparation area 112 can also be close to the conveying width of the sanitary napkin, so as to reduce the skewing of the sanitary napkin and ensure that the sanitary napkin can be offset against the first stopper 120 .

In actual use, the center of the sanitary napkin conveying track coincides with the input center line, so that the two first stoppers 120 can be respectively offset against the two sides of the center of the sanitary napkin. When the sanitary napkin is conveyed to the reversing area 113, the corresponding first A stopper 120 sanitary napkins extends downwards into the reversing area 113, and the first stopper 120 abuts against the position where the sanitary napkin deviates from the center line. The first stopper 120 divides the sanitary napkin into two parts along the conveying direction, and the sanitary napkin is conveyed The bottom surface of the part where the trajectory passes has a larger contact area with the conveyor belt 110. The sanitary napkin is driven by the friction of the conveyor belt 110 and blocked by the first stopper 120. After division, the larger part overcomes the friction of the smaller part. And continue to move along the conveyor belt 110, and the relatively small part is blocked and stagnated by the first stop head 120, so that the sanitary napkin is automatically turned around the first stop head 120 horizontally by 90°, and after the sanitary napkin has walked around the first stop head 120 completely, then Continue to convey along the conveying surface 111, because the two first stoppers 120 are respectively facing the two sides of the center line of the sanitary napkin, when switching to the other first stopper 120 to block the movement of the sanitary napkin, the corresponding sanitary napkin will reverse horizontally 90°, the present invention can adjust the timing of the two first stoppers 120 extending into the reversing area 113 according to the packing quantity of the material, so as to ensure that the two first stoppers 120 extend into the reversing area 113 alternately periodically, not only making the material Automatically realize the reversing during the transmission process, and at the same time ensure that the commodity code on the side of the material can be definitely shifted between two adjacent materials, reducing manpower waste, improving production efficiency, and preventing the occurrence of combined commodities in the subsequent upgrading and sales process. False scanning situation.

In addition, in this embodiment, the first blocking head 120 is in the shape of a rod extending vertically. In fact, the first blocking head 120 can also be in the shape of a plate, as long as it can cover the smaller portion after the sanitary napkin is divided, so as to ensure that the larger portion can always be transferred along the conveying surface 111 . In addition, besides packaging sanitary napkins, the material can also be other square products.

In order to ensure that the material can be turned smoothly under the action of the first stop 120 , a roller 121 is sheathed on the lower end of the first stop 120 , and the rotation axis of the roller 121 extends up and down.

Specifically, the side of the material facing the conveying direction of the conveying surface 111 can directly touch the roller 121, and the roller 121 that rotates with the movement of the material can reduce the friction during the material conversion process and improve the material conversion effect.

In this embodiment, the roller 121 can be a bearing structure with a stable structure and smooth use, or it can be a swivel ring sleeved at the bottom end of the first stopper 120 with low cost.

Further, the material feeding assembly includes a partition 131 and a pressure piece 132, the two partitions 131 of the material feeding assembly enclose a feeding channel, and the pressure piece 132 has a telescopic connection end, and the connection end Connect the partition 131 to the side away from the feed channel.

Specifically, according to the width and length of the material in the conveying process, the staff can then stretch and adjust the connecting end of the pressing member 132, and then change the width of the feeding channel to ensure that the feeding channel provides horizontal conversion space for the material, and, The width of the downstream part of the feeding section matches the conveying width of the material after conversion. The materials arranged along the feeding section facilitate the subsequent packaging process. The adjustable width of the feeding channel is suitable for packaging of various sizes and specifications. Towel, improve applicability.

In fact, the pressing piece 132 includes a fixing seat and a connecting rod 133. One end of the connecting rod 133 connected to the side wall of the partition 131 is a connecting end. The connecting rod 133 can slide back and forth along the fixing seat and be fixed by bolts, so that the connecting ends are opposite to each other. The expansion and contraction of the pressing piece 132 .

Moreover, the pressing member 132 can move back and forth and be positioned along the conveying direction of the conveying surface 111 . This can facilitate the adjustment of the width of the feedway. In this embodiment, the conveyor belt 110 is arranged on the frame 310, and the fixing seat of the pressing member 132 is slidably connected to the frame 310 along the conveying direction of the conveying surface 111, and can be connected by screws, etc. The fixing member is positioned on the frame 310 .

Referring to Fig. 2, in order to be applicable to a variety of materials with different feeding directions and to ensure that the commodity code on the material can be adjusted to a suitable position, in this embodiment, the present invention also includes a second stopper 220, and the downstream splicing of the converging area 114 In the turning area 210 , the second blocking head 220 vertically extends into the turning area 210 , and the extending direction of the converging area 114 is facing the second blocking head 220 .

Specifically, the packaging materials are continuously conveyed from the confluence area 114 to the diversion area 210. When the material is against the second stopper 220, the distance between the second stopper 220 and the inner wall of one side of the feeder channel accounts for about 1/3 of the feeder channel. The width of the material is transferred to the side wall of the other side of the feeding channel under the friction of the conveyor belt 110, so that the material can be converted 90° again, and then the direction of the commodity code on the material side wall is adjusted to facilitate subsequent packaging. The structure is simple and reliable .

It should be noted that the second stopper 220 can be a vertically extending rod, and the distance between the rod and the inner wall of the feeder is about 2 cm to 4 cm, or the second stopper 220 is plate-shaped, and the second stopper The head 220 is no more than 1/3 of the width of the feeding channel to ensure the reversing of the sanitary napkin.

With reference to Fig. 3, the present invention also provides a kind of packing machine, and it comprises frame 310, above-mentioned reversing device, and described frame 310 is provided with stacking platform 311, packing platform 312 and sealing platform that are arranged sequentially from back to front. The bag platform 313 also includes a package pusher 230 , a bag feeding device 330 , an opening device, a bag supporting device 350 , a pushing head 320 and a sealing device 360 .

Wherein, the pushing package 230 includes a cylinder and a push plate 231, the cylinder can drive the push plate 231 to move left and right, and make the push plate 231 push the materials accumulated at the conveying end of the conveying surface 111 onto the stacking platform 311. A side of the plate 231 close to the confluence area 114 is connected with a material blocking plate 232 bent at 90° with the push plate 231 , and the end surface of the material blocking plate 232 faces the material on the conveying surface 111 . When the push plate 231 pushes the material, the material blocking plate 232 can stop the material from continuing to move along the conveying surface 111 to prevent the material from falling off.

Moreover, the bag feeding device 330 includes a conveying assembly and a bag taking assembly 333. The conveying assembly includes an input belt 331 that is continuously conveyed from the back to the front. Two adjacent dials 332 on the side surround an upper bag area, each upper bag area has packaging bags stacked up and down, and the bag taking assembly 333 has a suction bag end, and the suction bag end is located in the upper bag area above, the bag taking device can drive the suction bag end to move back and forth between the frontmost upper bag area and the packaging platform 312, so that the suction bag end can absorb a single packaging bag and transport it to the packaging platform 312. On the platform 312, automatic feeding of packaging bags is realized. In fact, the bag taking device can drive the suction bag end to move up and down and horizontally through the cylinder. The opening device in the present application has an absorber 340, which can suck open the mouth of the packaging bag on the packaging platform 312, wherein the absorber 340 includes an upper absorber and a lower absorber, and the absorber 340 includes an upper absorber and a lower absorber. The suction port and the suction port of the lower suction part are facing each other up and down, the upper suction part can move downward so that its suction port is flush with the height of the packaging platform 312, and the suction port of the lower suction part is flush with the height of the packaging platform 312 . Moreover, in order to reduce the electrostatic influence of the packaging bag, the present invention is also provided with a stop bar, which extends forward from above the frontmost upper bag area to the lower end of the lower suction member. The packaging bag is limited to the lower front of the suction port of the upper suction part through the stopper rod, reducing the lifting and bending of the packaging bag, ensuring that the packaging bag can be directly compressed after the upper suction part moves down, and ensuring the upper suction part and the lower suction part Can be aligned with the bag.

When in use, after the suction bag end transports a single packaging bag to the packaging platform 312, the upper suction part moves down, and the suction port of the upper suction part and the suction port of the lower suction part are respectively opened and attached to the upper and lower sides of the bag body. The suction port is sucked on the upper and lower sides of the bag body at the same time, and the upper suction part moves up to realize the opening of the bag mouth, ensuring that the subsequent packaging process can be realized.

Referring to Fig. 4, in order to ensure that the material can be fed into the inner cavity of the packaging bag, the bag-holding device 350 can move back and forth through the air cylinder, and has a bag-holding end that can be expanded and contracted, and the contracted bag-holding end can extend into the The opening of the bag is opened and the bag is opened, and the opened end of the bag is surrounded by a feeding port 410, and the front and rear ends of the feeding port 410 are respectively connected to the inner cavity of the packing bag and the stacking platform 311.

In some specific embodiments, the bag supporting device 350 includes a mounting plate 420, a moving plate 430, a fixed plate 440, and an adjustment assembly 450. The mounting plate 420 is arranged on the frame 310, and the front end of the mounting plate 420 is provided with a through hole. The fixed plate 440 is fixed on the mounting plate 420, and the feed inlet 410 is formed around the through hole between the left and right moving plates 430 and the front and rear fixed plates 440, and the two adjustment components 450 are respectively located on the two moving plates 430 away from the feed inlet 410 and is located on the left side of the mounting plate 420. The adjustment assembly 450 includes an opening and closing cylinder and a transmission member. One end of the opening and closing cylinder is rotatably connected to the installation plate 420. The transmission member is hinged on the installation plate 420. The rotation axis of the opening and closing cylinder The rotation axis of the transmission part and the transmission part both extend in the vertical direction, one end of the transmission part is rotatably connected to the telescopic end of the opening and closing cylinder, and the other end of the transmission part is synchronously connected with the moving plate 430 . The two moving plates 430 are arranged at intervals left and right, and the two fixed plates 440 are arranged at intervals up and down. The two moving plates 430 and the two fixed plates 440 form a feed port 410. When the telescopic end of the opening and closing cylinder stretches, Drive the transmission part to rotate along the mounting plate 420, so that the moving plate 430 rotates with the transmission part, so as to realize the opening and contraction of the front ends of the two moving plates 430, and then open the bag opening to facilitate the subsequent pushing of the bagged sanitary napkin. The opening and closing cylinders are located on the side of the moving plate 430 away from the feed port 410, and are connected to the left end surface of the mounting plate 420, preventing the adjustment assembly 450 from hindering the push head 320 and the bagged sanitary napkin, and can push the material The components and the driving components of the push head 320 are avoided to reduce interference and the structure is reliable.

The pushing head 320 can pass over the stacking platform 311 , packing platform 312 and bag sealing platform 313 in sequence forwardly and reset backward. In fact, the push head 320 is provided with a rack, and the push head 320 can rotate the drive gear through the motor 610. The toothed belt is sleeved on the gear, and the rack meshes with the toothed belt, thereby realizing the reciprocating movement of the push head 320 to ensure the smoothness of the push head 320. The stroke length is sufficient.

In addition, the present invention also includes a pressing plate 460, which can be moved down to a position flush with the upper side of the feed port 410 or moved up to reset, before the push head 320 pushes the material, the pressing plate 460 moves down and flattens the top surface of the material , to ensure that the material can be smoothly pushed into the feed port 410 by the push head 320, reducing the damage caused by the material being stuck at the feed port 410, and also reducing the downtime adjustment time and improving work efficiency.

The sealing device 360 can heat-seal the bag mouth located in the bag sealing platform 313 to realize packaging.

In actual use, the horizontally shifted materials are piled up at the conveying end of the conveying surface 111 along the conveying direction of the conveyor belt 110, and the pusher 230 pushes the materials accumulated in the same group onto the stacking platform 311, and the pressing plate 460 moves down And press the top surface of the material, the suction bag end of the bag feeding device 330 feeds the individual packaging bags onto the packaging platform 312 one by one, and lays them flat. The upper suction piece and the lower suction piece are sucked on the upper side and the lower side of the packaging bag respectively. When the upper suction piece moves up, the opening of the packaging bag on the packaging platform 312 can be sucked open, so that the opening of the packaging bag faces Back facing the pushing head 320, the bag supporting end of the bag supporting device 350 stretches into the mouth of the packaging bag and opens, so that the opening of the packaging bag is stretched to ensure that the material can enter. When the pushing head 320 moves forward, it can Push the material from the stacking platform 311 into the packaging bag on the packaging platform 312, then, the packaging bag is separated from the bag support end under the thrust of the pushing head 320 and moved forward to the bag sealing platform 313, and the sealing device 360 heat-seals the mouth of the packaging bag located on the sealing platform 313 to complete the packaging of the entire group of materials and improve the automation effect.

Referring to FIG. 5 , in some specific embodiments, the sealing device 360 includes a cutter 510, a pressing assembly, and a side pull member 530 arranged in sequence along the material conveying direction, and the packaging platform 312 and the bag sealing platform 313 There is a sealing gap 540 between them, and the sealing gap 540 is flush with the surface of the sealing bag platform 313 as a reference plane, and the two side pulling members 530 are located on both sides of the sealing gap 540, and the side pulling members 530 has a clamping end facing the reference plane, and the clamping ends on the two side pull members 530 can approach or move away from each other. Block 521 and lower pressing block 522, the upper pressing block 521 and the lower pressing block 522 can be close to or far away from the reference plane at the same time, the top surface of the lower pressing block 522 is provided with a heating wire 523, and the heating wire 523 is vertical In the conveying direction of the material, the frame 310 is attached to the reference plane and is provided with a cutting chute 550 , and the cutting knife 510 is facing downwards to the opening of the cutting chute 550 .

Specifically, after the packaging bag is pushed into the bag sealing platform 313 with the push head 320, the clamping end clamps and pulls the two sides of the packaging bag close to the pocket opening to ensure that the pocket opening is flattened, reducing the pocket opening folds, and conveniently pressing the components The compression and heat sealing of the bag mouth prevents the pressing components from leaking and crooked on the bag mouth, improves the stability of the sealing quality of the product packaging bag, and at the same time, grows the heat-sealed part and the sealing gap 540 A part can be cut off by the cutter 510, and the cut off material falls into the discharge chute 550 for collection, and the way of pulling first, then pressing, and then cutting improves the sealing effect and efficiency of the bag mouth.

In addition, in this embodiment, the cutter 510, the pressing assembly, and the side pull member 530 are arranged in sequence from the back to the front, and the opening of the packaging bag faces backwards, so that the sealing can be realized after the pushing head 320 pushes the packaging bag into place, improving Increase production efficiency and improve space utilization. Moreover, the lengths of the upper pressing block 521, the lower pressing block 522 and the heating wire 523 are all greater than the conveying width of the packaging bag, so as to ensure the sealing of the opening of the packaging bag.

Moreover, the side pull member 530 may include a motor 610, a jaw cylinder 620, a turntable 630, a transmission rod a640 and a transmission rod b650, the motor 610 is rotatably connected to the turntable 630, the rotation axis of the turntable 630 extends in the up-down direction, and the two grippers The cylinders 620 are respectively located on the left and right sides of the turntable 630, and are slidably connected to the frame 310 along the left and right directions. One end of the transmission rod a640 is connected to one side of the turntable 630, and the other end of the transmission rod a640 is connected to a gripper. On the air cylinder 620, one end of the transmission rod b650 is connected to the other side of the turntable 630, and the other end of the transmission rod b650 is connected to the other jaw cylinder 620. The clamping part of the two jaw cylinders 620 is the clamping end , the two clamping ends face each other, when the motor 610 drives the turntable 630 to rotate, the transmission rod a640 and the transmission rod b650 simultaneously pull the two jaw cylinders 620 close to each other, or simultaneously push the two jaw cylinders 620 away from each other, Simultaneous driving of the upper pressing block 521 and the lower pressing block 522 can be realized by a single driving member, thereby reducing production costs.

In addition, the side pull member 530 can also drive its clamping end to move left and right through two screw motors 610 or two air cylinders respectively, which is not specifically limited in this embodiment.

Further, the pressing assembly includes a driving member, a connecting rod, a pull rod a561 and a pull rod b562, the conveying direction of the material extends forward and backward, and the upper pressing block 521 and the lower pressing block 522 are slidably connected to the upper and lower pressing blocks. On the frame 310, the driving member rotates to drive the middle part of the connecting rod, the rotation axis of the connecting rod extends along the left and right direction, and the pull rod a561 and the pull rod b562 are respectively connected to the front and rear ends of the connecting rod in rotation, so The upper end of the pull rod a561 is rotatably connected to the upper pressing block 521 , and the upper end of the pull rod b562 is rotatably connected to the lower pressing block 522 .

Specifically, the driving part is a motor 610, and the connecting rod is actually rotatably connected to the frame 310 to improve the installation stability of the connecting rod. The driving part drives the middle part of the connecting rod to rotate and swing. When the front end of the connecting rod moves up or down, then The rear end of the connecting rod moves down or up correspondingly, and the swinging connecting rod pulls the pull rod a561 and the pull rod b562 to move at the same time, so that the upper pressing block 521 and the lower pressing block 522 slide close to or away from the frame 310 at the same time, improving the upper The movement stability of the pressing block 521 and the lower pressing block 522 can ensure the stroke length at the same time, and the simultaneous driving of the upper pressing block 521 and the lower pressing block 522 can be realized through a single driving member, thereby reducing the production cost.

It should be noted that, in this embodiment, the frame 310 is provided with a rotating shaft extending left and right, and both ends of the rotating shaft are connected with connecting rods, so that the two ends of the upper pressing block 521 are respectively connected with two pull rods a561, and the lower pressing block The two ends of the 522 are respectively connected with two tie rods b562, so as to improve the force uniformity and movement stability of the upper pressing block 521 and the lower pressing block 522, and reduce jamming and misalignment. In addition, the sliding connection relationship structure between the upper pressing block 521, the lower pressing block 522 and the frame 310 or even other parts can be realized by means of slide rail sliders or slide rail pulleys.

In this embodiment, the sealing device 360 also includes a discharge conveyor belt 362 and a limit plate 361 that can move up and down, the bag sealing platform 313 is located on the discharge conveyor belt 362, and the limit plate 361 is located Above the material conveyor belt 362, when the limiting plate 361 moves down, the bag sealing platform 313 encloses a limiting cavity with the opening facing backward, and the pushing head 320 can extend into the limiting cavity.

The push head 320 pushes the group of sanitary napkins covered with the packaging bag into the bag sealing platform 313, and the limit plate 361 restricts the movement of the packaging bag on the discharge conveyor belt 362, so that the packaging bag is kept in position and is convenient for bag sealing. After the packaging bag is heat-sealed and cut by the cutter 510, the clamping end of the side pull member 530, the upper pressing block 521, the lower pressing block 522, and the cutting knife 510 are all reset, and the limit plate 361 is moved up at the same time, so that the packaging The bag can be automatically unloaded through the discharge conveyor belt 362, which improves the automation effect and ensures production efficiency.

And, the present invention also provides a kind of packing method, and it is applied on above-mentioned packing machine, comprises the following steps:

The preparatory step is to adjust the telescopic length of the connecting section relative to the pressing piece 132 according to the width of the material input, and then adjust the width of the feed channel and the reduction slope;

Step 1. When the material is transported along the conveying surface 111, the center line coincides with the input center line. The two first stoppers 120 correspond to 1/3 and 2/3 of the width of the material respectively. The quantity of materials packed together in each group is n pieces, when it is detected that the 1st or 1st to (n-1) materials of the same group enter the reversing area 113 along the preparation area 112, a first stopper 120 extends into the reversing area 113, so that the corresponding material It can switch 90° toward the direction of the input centerline. When the second to nth or nth materials of the same group enter the reversing area 113 along the preparation area 112, the first stopper 120 rises, and the other first stopper 120 extends into the reversing area 113, so that the corresponding material can be reversed by 90° in the direction close to the input center line;

Step 2. The converted materials gradually converge as the conveying surface 111 shrinks along the feedway, and are piled up sequentially along the conveying direction;

If in the same group of materials that are piled up sequentially, the commodity codes on the materials are always on the exposed sides instead of being hidden between two adjacent materials, the downstream splicing turning area 210 of the converging area 114, the first The second stopper 220 extends into the diversion zone 210 and is facing the extension direction of the confluence zone 114, so that the material being transported is turned by 90°;

Step 3. After detecting that the same group of materials has been accumulated, the pressing plate 460 moves down and presses the top surface of the materials until it is flush with the top side of the feeding port 410, and the pushing package 230 pushes the materials accumulated at the end of the conveying surface 111 into the stacking platform 311;

Step 4. The opening device opens the mouth of a single packaging bag located on the packaging platform 312, and the bag stretching device 350 drives the contracted bag stretching end forward into the mouth of the bag;

Step 5. Open the bag-supporting end and stretch the bag opening described in step 4. The bag-supporting device 350 drives the opened bag-supporting end to reset backwards, so that the packaging bag is always set on the bag-supporting end;

Step 6. The limit plate 361 moves down, and the pile head pushes the material on the stacking platform 311 into the packaging bag in step 5 forward, and continues to push forward, so that the packaging bag is separated from the bag support end and pushed into the discharge On the sealing bag platform 313 on the conveyor belt 362, the limit plate 361 limits the movement of the material;

Step 7. The two clamping ends respectively clamp and pull apart the two sides of the packaging bag near the mouth of the bag, the upper pressing block 521 and the lower pressing block 522 are close to each other and clamped on the packaging bag, and the heating wire 523 heats the opening of the bag , the cutting knife 510 cuts off the part of the packaging bag that grows out of the sealing gap 540 towards the rear, and the cut off material falls into the chute 550 for collection;

Step 8: After the clamping end, the upper pressing block 521 and the lower pressing block 522 release the pressure on the packaging bag, the limiting plate 361 moves upward, and the heat-sealed packaging bag is output along the discharge conveyor belt 362 .

Specifically, the side with the input center line on the first stop 120 is the turning side, when the first stop 120 extends into the reversing area 113, because the first stop 120 is about 1/3 of the material place, so that about 2/3 of the material is located on the turning side of the first stop 120, and under the friction of the conveying surface 111, the part of the material on the turning side overcomes the pressure on the other side of the first stop 120. Part of the frictional resistance makes the material transfer along the first stopper 120 on the turning side. At the same time, the width of the feeding channel gradually narrows along the conveying direction. Under the action of the first stopper 120 and the second stopper 220, the forward and reverse conversion of the material is automatically realized, ensuring that the commodity code on the side of the material can be definitely shifted between two adjacent materials, and the bag is supported The end moves back and forth and puts on the packaging bag, so that the inner cavity of the packaging bag and the feeding port 410 communicate with each other, and the pushing package 230 automatically pushes the material into the stacking platform 311, and the material is located on the moving track of the pushing head 320, so that the pushing head When the 320 moves forward, the material can be directly pushed into the packaging bag, and then the packaging bag is separated from the bag support end under the continuous advancement of the pushing head 320 and enters the bag sealing platform 313 forward, and finally the bag opening is heat-sealed by the sealing device 360 After output directly, improve the automation effect, reduce the waste of manpower, and improve the production efficiency.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can also make various equivalent modifications or replacements without departing from the spirit of the present invention. These equivalent Modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims (10)

1. A reversing device, characterized in that: the method comprises the following steps:

the conveying belt (110) is provided with a conveying surface (111), the conveying surface (111) is sequentially divided into a preparation area (112), a reversing area (113) and a converging area (114) along the conveying direction of the conveying surface, and an input central line is arranged on the conveying surface (111);

the reversing assembly is arranged above the reversing area (113), the reversing assembly comprises first blocking heads (120), the two first blocking heads (120) are positioned on two sides of the input center line, the lower end of each first blocking head (120) can downwards extend into or withdraw from the reversing area (113), and the extending direction of the preparation area (112) is opposite to the first blocking heads (120) extending into the reversing area (113);

the two gathering components are arranged on two sides of the conveyor belt (110) and enclose a gathering channel, and the width of the gathering channel is gradually reduced from the reversing area (113) to the gathering area (114).

2. A reversing device according to claim 1, characterized in that: the lower end of the first stopper (120) is sleeved with a roller (121), and the rotation axis of the roller (121) extends up and down.

3. A reversing device according to claim 1, characterized in that: the gathering assembly comprises partition plates (131) and pressing pieces (132), the partition plates (131) of the two gathering assemblies form a gathering channel in an enclosed mode, and each pressing piece (132) is provided with a telescopic connecting end which is connected with one side, away from the gathering channel, of each partition plate (131).

4. A reversing device according to claim 1, characterized in that: still include second fender head (220), the downstream concatenation of meeting district (114) turns to district (210), second fender head (220) vertically stretches into turn to in the district (210), the extending direction of meeting district (114) is just right second fender head (220).

5. A packaging machine comprising a machine frame (310) and a reversing device according to any one of claims 1 to 4, wherein the machine frame (310) is provided with a stacking platform (311), a packing platform (312) and a bag sealing platform (313) which are arranged in sequence from back to front, characterized in that: the method comprises the following steps:

a pack pushing member (230) capable of pushing the materials stacked at the conveying end of the conveying surface (111) into the stacking platform (311);

a bag feeder (330) for feeding individual packages onto the packing platform (312);

the opening device is provided with a suction piece (340), and the suction piece (340) can suck the mouth of the packaging bag positioned on the packaging platform (312) open;

the bag opening device (350) is provided with a bag opening end capable of being opened and contracted, the contracted bag opening end can extend into the bag opening and open the packaging bag, the opened bag opening end is enclosed to form a feeding hole (410), and the front end and the rear end of the feeding hole (410) are respectively communicated with the packaging bag inner cavity and the stacking platform (311);

the push head (320) can pass through the stacking platform (311), the packaging platform (312) and the bag sealing platform (313) in sequence forwards and reset backwards;

a sealing device (360) capable of heat sealing the bag mouth positioned in the bag sealing platform (313).

6. A packaging machine according to claim 5, characterized in that: sealing device (360) include cutter (510), pressing components, the side that sets gradually along material direction of delivery pull (530), packing platform (312) with envelope platform (313) between have seal clearance (540), seal clearance (540) flush in the face of envelope platform (313) is the reference surface, two side pull (530) are located the both sides in seal clearance (540), side pull (530) have just right the exposed core of reference surface, two the exposed core on side pull (530) can be close to or keep away from each other, pressing components is including being located respectively last briquetting (521) and lower briquetting (522) of both sides about the reference surface, go up briquetting (521) and lower briquetting (522) can be close to or keep away from simultaneously the reference surface, be equipped with heater (523) on lower briquetting (522) top surface, heater (523) perpendicular to material direction of delivery, frame (310) laminating the reference surface is equipped with down silo (550), cutter (510) are just to the opening of lower briquetting (550).

7. A packaging machine according to claim 6, characterized in that: the pressing component comprises a driving piece, a connecting rod, a pull rod a (561) and a pull rod b (562), the upper pressing piece (521) and the lower pressing piece (522) are connected to the rack (310) in a sliding mode in the vertical direction, the driving piece drives the middle of the connecting rod in a rotating mode, the rotating axis of the connecting rod extends in the left-right direction, the pull rod a (561) and the pull rod b (562) are connected to the front end and the rear end of the connecting rod in a rotating mode respectively, the upper end of the pull rod a (561) is connected to the upper pressing piece (521) in a rotating mode, and the upper end of the pull rod b (562) is connected to the lower pressing piece (522) in a rotating mode.

8. A packaging method applied to the packaging machine according to any one of claims 7, characterized in that: the method comprises the following steps:

step 1, a central line of materials when the materials are conveyed along a conveying surface (111) is coincident with an input central line, two first blocking heads (120) approximately correspond to 1/3 and 2/3 of the width of the materials respectively, the number of the materials packed in one group is n, when the 1 st or 1 st to (n-1) th materials of the same group enter a reversing area (113) along a preparation area (112), one first blocking head (120) extends into the reversing area (113) to enable the corresponding material to be converted 90 degrees towards the direction close to the input central line, when the 2 nd to nth or nth materials of the same group enter the reversing area (113) along the preparation area (112), the first blocking head (120) rises, and the other first blocking head (120) extends into the reversing area (113) to enable the corresponding material to be converted 90 degrees towards the direction close to the input central line;

and 2, converging the converted materials gradually along the reduction of the material converging channel along the conveying surface (111), and sequentially stacking the materials along the conveying direction.

9. A method of packaging as claimed in claim 8, wherein: the downstream of the confluence area (114) is spliced with a diversion area (210), and a second stop head (220) extends into the diversion area (210) and is opposite to the extension direction of the confluence area (114) so that the conveyed materials are changed by 90 degrees.

10. A method of packaging as claimed in claim 8, wherein: further comprising:

step 3, pushing the materials stacked at the conveying tail end of the conveying surface (111) into the stacking platform (311) by a package pushing piece (230);

step 4, opening the bag mouth of a single packaging bag positioned on the packaging platform (312) by the opening device, and driving the contracted bag opening end to extend forwards into the bag mouth by the bag opening device (350);

step 5, opening the bag opening end and opening the bag opening, and driving the opened bag opening end to reset backwards by a bag opening device (350) so that the packaging bag is always sleeved on the bag opening end;

and 6, the stacking head forwards pushes the materials of the stacking platform (311) into the packaging bag in the step 5, and continuously forwards, so that the packaging bag is separated from the bag opening end and pushed into the bag sealing platform (313), and the packaging bag is sealed and output through the sealing device (360).

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