Automatic stacking device and stacking method for producing a carton liner

Abstract

This invention relates to the field of packaging box liner production technology, and discloses an automatic stacking device and method for packaging box liner production. The device includes a support frame and an anvil plate fixedly connected within the support frame. It further includes: a stacking section disposed on the support frame; a pressing section mounted on the support frame; a cutting section disposed on the pressing section; and a resetting section mounted on the stacking section. The stacking section includes a transport component disposed on the support frame; and a lowering component mounted on the transport component. The transport component includes a transport plate disposed within the support frame. This invention, by incorporating a stacking section, solves the problem that when the stacking height increases, the fixed support plate cannot descend synchronously with the stacking height, causing the bottom packaging box liner to continuously bear the weight of the upper layer and gradually deform under pressure, even leading to stack tilting or collapse.

Description

Technical Field

[0001] This invention relates to the field of packaging box liner production technology, specifically to an automatic stacking device and stacking method for packaging box liner production. Background Technology

[0002] With the popularization of automated production technology, efficient and precise stacking operations have become a key link in improving the overall efficiency of the production line. In the traditional process of stacking packaging box liners, sorting, stacking and placement operations are mostly completed manually or by semi-automated equipment, which has obvious technical bottlenecks. Manual stacking is not only labor-intensive and inefficient, but also prone to insufficient stacking neatness due to operator fatigue, leading to packaging damage during transportation. Although semi-automated equipment partially replaces manual labor, its mechanical structure mostly uses fixed support or simple lifting mechanisms, which is difficult to adapt to the stacking requirements of packaging box liners of different sizes, especially when dealing with stacking tasks with varying heights. Problems such as deformation of the bottom packaging under pressure and poor stacking stability often occur. At the same time, in traditional equipment, the cutting and stacking processes are independent, and material transfer requires the assistance of additional mechanical grippers, resulting in complex equipment structure, high energy consumption, and insufficient production continuity. In addition, facing the high requirements of the food, electronics and other industries for the appearance and integrity of packaging, traditional stacking methods are difficult to meet the quality control needs of modern production due to low positioning accuracy and lack of cushioning protection. Therefore, there is an urgent need for a high-efficiency device that can realize automatic positioning, dynamic support, and integrated cutting and stacking operations to solve the problems of low efficiency, poor stability and weak adaptability in traditional technologies.

[0003] However, in the process of using existing automatic stacking devices for packaging box lining production, when the stacking height increases, the fixed support plate is difficult to descend synchronously with the stacking height. This causes the bottom packaging box lining to continuously bear the weight of the upper layer and gradually become deformed under pressure, and even problems such as stacking tilting and collapse may occur. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic stacking device and stacking method for producing packaging box liners. By setting up a stacking section, the problem is solved that when the stacking height increases, the fixed support plate is difficult to descend synchronously with the stacking height, causing the bottom packaging box liner to continuously bear the weight of the upper layer and gradually deform under pressure, or even causing the stack to tilt or collapse.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to an automatic stacking device for producing packaging box liners, comprising a support frame and an anvil fixedly connected within the support frame, and further comprising: a stacking section disposed on the support frame; a pressing section mounted on the support frame; a cutting section disposed on the pressing section; and a resetting section mounted on the stacking section; the stacking section includes a transport assembly disposed on the support frame; and a lowering assembly mounted on the transport assembly; the transport assembly includes a transport plate disposed within the support frame, the bottom of the transport plate being provided with universal wheels equipped with brakes, and the top of the transport plate being fixedly connected to a storage box; wherein the storage box is a rectangular ring that wraps around the internal packaging box liner.

[0007] Furthermore, the pressing part includes an electric telescopic rod that passes through the support frame. The electric telescopic rod is fixedly connected to the support frame, and the output shaft of the electric telescopic rod is fixedly connected to a pressure chamber. An air pipe is connected to the pressure chamber, and several adsorption elements are provided on the pressure chamber. The adsorption elements are arranged in a linear array on the pressure chamber, and each adsorption element includes a connecting pipe connected to the pressure chamber. A suction cup is connected to the bottom of the connecting pipe. The suction cup contacts the inner lining of the packaging box, and the pressing part enables the cut inner lining of the packaging box to fall smoothly onto the support plate.

[0008] Furthermore, the cutting section includes two fixed blocks three fixedly connected to the transformer chamber. Each of the two fixed blocks three has a sliding rod slidably connected to it. Each of the two sliding rods has a fixed plate fixedly connected to its bottom. Each of the two sliding rods is fitted with a spring two. The tops of each of the two spring two are fixedly connected to the fixed blocks three, and the bottoms of each of the two spring two are fixedly connected to the fixed plates. A cutting component is disposed between the two fixed plates. The fixed blocks three, sliding rods, fixed plates, and spring two are arranged in a mirror image. The cutting component includes a cutter fixedly connected to one side of each fixed plate that is close to the other. The cutter is adapted to an anvil. The cutter contacts the inner lining of the packaging box, and the cutting section can cut the connection between the inner linings of the packaging box and maintain the same cutting position for each batch.

[0009] Furthermore, the reset part includes a rotating shaft rotatably connected to the support plate. The storage box has a sliding groove. The left side of the rotating shaft passes through the sliding groove. A take-up reel is fixedly connected to the outer wall of the rotating shaft. Two connecting lines are wound around the outer wall of the take-up reel. A sliding plate is rotatably connected to the outer wall of the rotating shaft. A connecting rod is fixedly connected to the right side of the sliding plate. The connecting rod extends into the sliding groove. A handle is fixedly connected to the left side of the rotating shaft. A conical spring is sleeved on the outer wall of the rotating shaft. The left side of the conical spring is fixedly connected to the handle, and the right side of the conical spring is fixedly connected to the sliding plate. The sliding plate slides in the sliding groove via the connecting rod, and an anti-slip pad is provided on the handle.

[0010] Furthermore, the lowering assembly includes two limiting rods fixedly connected to the top of the transport plate. A support plate is provided inside the storage box. Two fixing blocks are fixedly connected to the right side of the support plate. Each of the two fixing blocks is slidably connected to a sliding rod. Limiting blocks are fixedly connected to the sides of the two sliding rods that are far apart from each other, and fixing blocks are fixedly connected to the sides of the two sliding rods that are close to each other. Springs are sleeved on the outer walls of the two sliding rods. The sides of the two springs that are close to each other are fixedly connected to the two fixing blocks, and the sides of the two springs that are far apart from each other are fixedly connected to the two fixing blocks. Two sliding members are installed on the transport plate. The fixing blocks, sliding rods, limiting blocks, fixing blocks, and springs are arranged in a mirror image. The sliding member includes a sliding rod fixedly connected to the top of the transport plate. The sliding rod passes through the support plate. The length of the sliding rod is the same as the length of the limiting rod. The lowering assembly can continuously adjust the height of the support plate as the height of the inner lining of the packaging box increases.

[0011] The present invention also provides a stacking method for producing packaging box liners, using the aforementioned automatic stacking device for producing packaging box liners, comprising the following steps:

[0012] S1: Place the compressed packaging box liner on the cutting board, and then start the electric telescopic rod. At this time, the electric telescopic rod will move the pressure chamber downwards. When the pressure chamber moves downwards, the fixed block three, the slide rod, the fixed plate, the spring two, and the cutter will all move downwards. When moving downwards, the cutter will first contact the connection point of the packaging box liner. As the pressure chamber continues to move downwards, it will increase the pressure of the cutter on the contact point of the packaging box liner. As the pressure chamber moves downwards, it will move the fixed block three downwards and compress the spring two. After the spring two is compressed, it will increase the pressure at the contact point again, thereby achieving the cutting of the connection point of the packaging box liner.

[0013] S2: When the pressure chamber moves downward, the suction cup and the cutter will simultaneously contact the inner lining of the packaging box. After contact, the air pipe is activated, which will suck out the air from the pressure chamber and the connecting pipe. After the air is expelled, a negative pressure will be generated, forming a certain sealed space through the contact surface between the suction cup and the inner lining of the packaging box. At this time, the change in air pressure will attract the inner lining of the packaging box. After the cutting is completed, the inner linings of the packaging box will not be connected, but they will not fall downward due to the attraction of the inner lining of the packaging box through the connecting pipe and the suction cup. At this time, the electric telescopic rod continues to descend, and the pressure chamber will bring the cut inner lining of the packaging box to contact the support plate through the connecting pipe and the suction cup. After the inner lining of the packaging box contacts the support plate, the air pipe is closed to restore the air pressure. At this time, the inner lining of the packaging box will detach from the suction cup and be placed on the support plate, thus stacking the inner lining of the packaging box.

[0014] S3: As the height of the stacked packaging box lining increases, when the connecting tube and suction cup move the packaging box lining downwards again, they will press the support plate downwards. After being pressed, the support plate will move downwards along with the fixing block 1, sliding rod 1, limiting block, fixing block 2, and spring 1. When the limiting block moves downwards, it will be pushed outwards by the toothed block on the limiting rod. When the limiting block moves outwards, it will move along with the sliding rod 1 and fixing block 2. When the sliding rod 1 moves on the fixing block 1, it will push the fixing block 2. At this time, spring 1 will be pulled outwards by the fixing block 2. As the limiting block moves outwards, it will pass through a toothed block on the limiting rod, and thus the support plate will fall downwards. When the support plate falls, it will slide on the sliding rod 2. Thus, as the height of the packaging box lining increases, the support plate will continue to move downwards.

[0015] S4: Push the storage box. The inner lining of the box can then be transferred using the casters with brakes. After reaching the designated position, remove the inner lining and reset the support plate. To reset, turn the handle, and the shaft will move accordingly. As the shaft rotates, the take-up reel will wind up the two connecting lines. The conical spring will contract due to the twisting. As the connecting lines are wound up, the two fixing blocks will move closer together, which will move the sliding rod and the limiting block. When the fixing block moves, the spring will be compressed. When the limiting block moves, it will stop engaging with the limiting rod. Then, pull the handle upward, and the support plate will be pulled upward, thus resetting and allowing it to be used again.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the stacking section of this invention, as the height of the stacked packaging box liner increases, when the connecting tube and suction cup move the packaging box liner downwards again, they will press the support plate downwards. After pressing, the support plate will move downwards along with the fixing block one, the sliding rod one, the limiting block, the fixing block two, and the spring one. When the limiting block moves downwards, it will be pushed outwards by the toothed block on the limiting rod. When the limiting block moves outwards, it will move the sliding rod one and the fixing block two along with it. When the sliding rod one moves on the fixing block one, it will push the fixing block two. At this time, the spring one will be pulled outwards by the fixing block two. As the limiting block moves outwards, it will pass through a toothed block on the limiting rod, so that the support plate will fall downwards. When the support plate falls, it will slide on the sliding rod two. Thus, as the height of the packaging box liner increases, the support plate will continue to move downwards, allowing the support plate to automatically adjust its position according to the stacking height, always maintaining support for the bottom packaging box liner, and ensuring that the support plate descends synchronously with the increase of the stacking height.

[0018] 2. In this invention, during the downward movement of the pressure chamber, the suction cup and the cutter simultaneously contact the inner lining of the packaging box. After contact, the air pipe is activated, drawing air out of the pressure chamber and connecting pipe. This air release creates a certain air pressure, which, upon increasing, forms a sealed space between the suction cup and the inner lining of the packaging box. This pressure change then adheres to the inner lining of the packaging box. After cutting, the inner linings of the packaging box are no longer connected, but the adhesion between them is maintained through the connecting pipe and the suction cup. It will not fall downwards. At this time, the electric telescopic rod continues to descend, and the pressure chamber will bring the cut packaging box liner to contact the support plate through the connecting pipe and suction cup. After the packaging box liner contacts the support plate, the air pipe is closed to restore the air pressure. At this time, the packaging box liner will detach from the suction cup and be placed on the support plate, thus achieving the effect of stacking the packaging box liner. After cutting, the suction force prevents the packaging box liner from falling, and the electric telescopic rod controls the descent of the pressure chamber to accurately place the packaging box liner on the support plate.

[0019] 3. The cutting section of this invention places the compressed packaging box liner on a cutting board, and then activates the electric telescopic rod. At this time, the electric telescopic rod will move the pressure chamber downwards. When the pressure chamber moves downwards, the fixing block three, the sliding rod, the fixing plate, the spring two, and the cutter will all move downwards. During the downward movement, the cutter will first contact the connection point of the packaging box liner. As the pressure chamber continues to move downwards, it will increase the pressure of the cutter on the contact point of the packaging box liner. As the pressure chamber moves downwards, it will move the fixing block three downwards and compress the spring two. After the spring two is compressed, it will increase the pressure at the contact point again, thereby achieving the effect of cutting the connection of the packaging box liner. This ensures that the cutter cuts into the connection point with stable pressure, avoiding damage to the packaging box liner due to excessive initial pressure. It can also release greater impact force at the moment of cutting through the energy stored in the spring, accurately cutting the connection without damaging the main body of the packaging. This allows the cutting process to have both force control and cutting efficiency.

[0020] 4. The reset unit of this invention, after the inner lining of the packaging box is stacked, pushes the storage box, and the inner lining of the packaging box can be transferred by the universal wheels with brakes. After reaching the designated position, the inner lining of the packaging box is removed, and the support plate needs to be reset. When resetting, turn the handle, and the rotating shaft will move accordingly. When the rotating shaft rotates, the take-up wheel will wind up the two connecting lines. At this time, the conical spring will be contracted due to being twisted. When the connecting lines are wound up, the two fixing blocks will move closer to each other. When they move closer to each other, they will move the sliding rod and the limiting block accordingly. When the fixing block moves, the spring will be compressed. When the limiting block moves, it will stop engaging with the limiting rod. At this time, the handle can be pulled up, and the support plate will be pulled up accordingly, thereby achieving the reset effect, so that it can be put into use again. It can quickly restore the equipment to a usable state, effectively reduce the waiting time during operation, improve the overall efficiency, and make the equipment adaptable to the needs of continuous operation, enhancing the convenience and practicality of use.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a partial cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 This is a partial cross-sectional view of the stacking section of the present invention;

[0026] Figure 4 This is a partial cross-sectional view of the pressing part of the present invention;

[0027] Figure 5 This is a partial cross-sectional view of the rear side of the present invention;

[0028] Figure 6 This is a partial structural schematic diagram of the groove of the present invention;

[0029] Figure 7 This is a partial cross-sectional view of the reset part of the present invention;

[0030] Figure 8 For the present invention Figure 3A magnified structural diagram of A in the middle;

[0031] Figure 9 For the present invention Figure 2 A magnified structural diagram of B in the diagram;

[0032] Figure 10 For the present invention Figure 7 A magnified structural diagram of C.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] In the diagram: 111, Support frame; 112, Cutting board; 2, Stacking section; 21, Transport assembly; 211, Transport plate; 212, Casters with brakes; 213, Storage box; 22, Lowering assembly; 221, Limiting rod; 222, Support plate; 223, Fixing block one; 224, Slide rod one; 225, Limiting block; 226, Fixing block two; 227, Spring one; 228, Slide rod two; 3, Pressing section; 311, Electric... 312. Telescopic rod; 313. Pressure chamber; 314. Air pipe; 315. Connecting pipe; 316. Suction cup; 4. Cutting part; 411. Fixing block three; 412. Slide rod; 413. Fixing plate; 414. Spring two; 415. Cutter; 5. Reset part; 511. Rotating shaft; 512. Slide groove; 513. Take-up reel; 514. Connecting line; 515. Slide plate; 516. Connecting rod; 517. Handle; 518. Conical spring. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-10 As shown, the present invention is an automatic stacking device and stacking method for producing packaging box liners, including a support frame 111 and an anvil 112 fixedly connected in the support frame 111, and further including: a stacking part 2 disposed on the support frame 111; a pressing part 3 mounted on the support frame 111; a cutting part 4 disposed on the pressing part 3; and a resetting part 5 mounted on the stacking part 2.

[0037] The stacking section 2 includes a transport assembly 21 mounted on a support frame 111; and a lowering assembly 22 mounted on the transport assembly 21. The transport assembly 21 includes a transport plate 211 disposed within the support frame 111, with casters 212 equipped with brakes at the bottom of the transport plate 211 and a storage box 213 fixedly connected to the top of the transport plate 211. The storage box 213 is a rectangular ring that wraps around the inner lining of the packaging box. The lowering assembly 22 includes two limiting rods 221 fixedly connected to the top of the transport plate 211. A support plate 222 is disposed within the storage box 213. Two fixing blocks 223 are fixedly connected to the right side of the support plate 222. Each fixing block 223 is slidably connected to a sliding rod 224. Limiting blocks 225 are fixedly connected to the sides of the two sliding rods 224 that are far apart from each other. One side is fixedly connected to a fixing block 226. The outer walls of the two sliding rods 224 are fitted with springs 227. The sides of the two springs 227 that are close to each other are fixedly connected to the two fixing blocks 226 respectively, and the sides of the two springs 227 that are far apart from each other are fixedly connected to the two fixing blocks 223 respectively. Two sliding parts are installed on the transport plate 211. The fixing blocks 223, sliding rods 224, limiting blocks 225, fixing blocks 226 and springs 227 are arranged in a mirror image. The sliding parts include a sliding rod 228 fixedly connected to the top of the transport plate 211. The sliding rod 228 passes through the support plate 222. The length of the sliding rod 228 is the same as the length of the limiting rod 221. By setting the stacking part 2, the support plate can automatically adjust its position according to the stacking height, always maintaining the support for the inner lining of the bottom packaging box, and ensuring that the support plate descends synchronously as the stacking height increases.

[0038] The pressing part 3 includes an electric telescopic rod 311 that passes through the support frame 111. The electric telescopic rod 311 is fixedly connected to the support frame 111. The output shaft of the electric telescopic rod 311 is fixedly connected to a pressure chamber 312. An air pipe 313 is connected to the pressure chamber 312. Several adsorption components are provided on the pressure chamber 312. The adsorption components are arranged in a linear array on the pressure chamber 312. Each adsorption component includes a connecting pipe 314 connected to the pressure chamber 312. A suction cup 315 is connected to the bottom of the connecting pipe 314. The suction cup 315 contacts the inner lining of the packaging box. By setting the pressing part 3, the inner lining of the packaging box is prevented from falling off after cutting by adsorption force. The pressure chamber is lowered by controlling the electric telescopic rod, so that the inner lining of the packaging box is accurately placed on the support plate.

[0039] The cutting section 4 includes two fixed blocks 411 fixedly connected to the transformer chamber 312. Each fixed block 411 is slidably connected to a slide rod 412. The bottom of each slide rod 412 is fixedly connected to a fixing plate 413. Each slide rod 412 is fitted with a spring 414. The top of each spring 414 is fixedly connected to the fixed block 411, and the bottom of each spring 414 is fixedly connected to the fixing plate 413. A cutting element is disposed between the two fixing plates 413. The fixed blocks 411, slide rods 412, and fixing plates 413 form a single unit. Plate 413 and spring 414 are arranged in a mirror image. The cutting component includes a cutter 415 fixedly connected to one side of the two fixed plates 413 that are close to each other. The cutter 415 is adapted to the anvil 112. The cutter 415 contacts the inner lining of the packaging box. By setting the cutting part 4, it is ensured that the cutter cuts into the connection point with stable pressure, avoiding damage to the inner lining of the packaging box due to excessive initial pressure. At the same time, the spring can release a greater impact force at the moment of cutting, accurately cutting the connection point without damaging the main body of the packaging. This allows the cutting process to have both force control and cutting efficiency.

[0040] The reset part 5 includes a rotating shaft 511 rotatably connected to the support plate 222. A groove 512 is provided on the storage box 213. The left side of the rotating shaft 511 passes through the groove 512. A take-up reel 513 is fixedly connected to the outer wall of the rotating shaft 511. Two connecting lines 514 are wound around the outer wall of the take-up reel 513. A sliding plate 515 is rotatably connected to the outer wall of the rotating shaft 511. A connecting rod 516 is fixedly connected to the right side of the sliding plate 515, extending into the groove 512. A handle 517 is fixedly connected to the left side of the rotating shaft 511. A conical spring 518 is sleeved on the outer wall of the rotating shaft 511. The left side of the conical spring 518 is fixedly connected to the handle 517, and the right side is fixedly connected to the sliding plate 515. The sliding plate 515 slides within the groove 512 via the connecting rod 516. An anti-slip pad is provided on the handle 517. The reset part 5 is thus implemented.

[0041] The packaging box liner of this invention is a blister-formed packaging box liner. When using the automatic stacking device for producing the packaging box liner of this invention, the compressed packaging box liner is placed on the cutting board 112. Then, the electric telescopic rod 311 is activated. At this time, the electric telescopic rod 311 will move the pressure chamber 312 downwards. During the downward movement of the pressure chamber 312, the fixing block 411, the sliding rod 412, the fixing plate 413, the spring 414, and the cutter 415 will all move downwards. During this downward movement, the cutter 415 will first contact the connection point of the packaging box liner. As the pressure chamber 312 continues to move downwards, the pressure of the cutter 415 on the contact point of the packaging box liner will increase. The downward movement of the pressure chamber 312 will also cause the fixing block 411 to move downwards. The third spring 411 moves downwards and compresses the second spring 414. This compression increases the pressure at the contact point, effectively cutting the inner lining of the packaging box. Simultaneously, as the pressure chamber 312 moves downwards, the suction cup 315 and the cutter 415 contact the inner lining of the packaging box. Upon contact, the air pipe 313 is activated, drawing air out of the pressure chamber 312 and the connecting pipe 314. This creates a negative pressure, forming a sealed space between the suction cup 315 and the inner lining. The pressure change then adheres to the inner lining. After cutting, the inner linings are no longer connected, but the connection pipe 314 and suction cup 315 maintain the connection between the inner lining and the packaging box. The liner will not fall downwards due to adsorption. At this time, the electric telescopic rod 311 continues to descend, and the pressure chamber 312 will bring the cut packaging box liner to contact the support plate 222 through the connecting pipe 314 and suction cup 315. After the packaging box liner contacts the support plate 222, the air pipe 313 is closed to restore the air pressure. At this time, the packaging box liner will detach from the suction cup 315 and be placed on the support plate 222, thereby achieving the effect of stacking the packaging box liner. As the stacked packaging box liner gets higher and higher, when the connecting pipe 314 and suction cup 315 move the packaging box liner downwards again, they will press the support plate 222 downwards. After pressing, the support plate 222 will bring the fixing block 223, the sliding rod 224, the limiting block 225, and the fixing... Block 226 and spring 227 move downwards. When the limiting block 225 moves downwards, it is pushed outwards by the toothed block on the limiting rod 221. When the limiting block 225 moves outwards, it will move the sliding rod 224 and the fixing block 226 along with it. When the sliding rod 224 moves on the fixing block 223, it will push the fixing block 226. At this time, spring 227 will be pulled outwards by the fixing block 226. As the limiting block 225 moves outwards, it will pass through a toothed block on the limiting rod 221, so the support plate 222 will fall downwards. When the support plate 222 falls, it will slide on the sliding rod 228. Thus, as the height of the inner lining of the packaging box increases, the support plate 222 will continue to move downwards. After the inner lining of the packaging box is stacked,Pushing the storage box 213 allows the inner lining of the packaging box to be transferred via the universal wheels 212 with brakes. After reaching the designated position, the inner lining of the packaging box is removed, and the support plate 222 needs to be reset. To reset, turn the handle 517, causing the rotating shaft 511 to move. As the shaft 511 rotates, the take-up wheel 513 winds up the two connecting lines 514. The conical spring 518 contracts due to the twisting motion. As the connecting lines 514 are wound up, the two fixing blocks 226 move closer together, causing the sliding rod 224 and the limiting block 225 to move as well. When the fixing block 226 moves, the spring 227 is compressed. When the limiting block 225 moves, it stops engaging with the limiting rod 221. Then, pull the handle 517 upwards, causing the support plate 222 to move upwards, thus achieving the reset effect and allowing it to be used again.

[0042] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic stacking device for producing packaging box liners, comprising a support frame (111) and an anvil (112) fixedly connected within the support frame (111), characterized in that, Also includes: The stacking section (2) is mounted on the support frame (111); the stacking section (2) includes a transport component (21), which is mounted on the support frame (111); the transport component (21) includes a transport plate (211) mounted inside the support frame (111), the bottom of the transport plate (211) is provided with a universal wheel (212) with a brake, and the top of the transport plate (211) is fixedly connected to a storage box (213); wherein the storage box (213) is a rectangular ring that wraps around the inner packaging box lining inside; The pressing part (3) is mounted on the support frame (111). The pressing part (3) includes an electric telescopic rod (311) that passes through the support frame (111). The electric telescopic rod (311) is fixedly connected to the support frame (111). The output shaft of the electric telescopic rod (311) is fixedly connected to a pressure chamber (312). An air pipe (313) is connected to the pressure chamber (312). Several adsorption components are provided on the pressure chamber (312). The adsorption component includes a connecting pipe (314) that is connected to the pressure chamber (312). A suction cup (315) is connected to the bottom of the connecting pipe (314). The suction cup (315) contacts the inner lining of the packaging box. A cutting section (4) is provided on the pressing section (3); the cutting section (4) includes two fixed blocks (411) fixedly connected to the pressure chamber (312), each of the two fixed blocks (411) is slidably connected to a slide rod (412), the bottom of each of the two slide rods (412) is fixedly connected to a fixing plate (413), each of the two slide rods (412) is fitted with a spring (414), the top of each of the two springs (414) is fixedly connected to the fixed block (411), the bottom of each of the two springs (414) is fixedly connected to the fixing plate (413), and a cutting component is provided between the two fixing plates (413); the cutting component includes a cutter (415) fixedly connected to one side of the two fixing plates (413) that are close to each other, and the cutter (415) is adapted to the cutting board (112); wherein, the cutter (415) contacts the inner lining of the packaging box; A reset part (5) is installed on the stacking part (2); the reset part (5) includes a rotating shaft (511) rotatably connected to a support plate (222), a groove (512) is provided on the storage box (213), the left side of the rotating shaft (511) passes through the groove (512), a take-up reel (513) is fixedly connected to the outer wall of the rotating shaft (511), two connecting lines (514) are wound around the outer wall of the take-up reel (513), and a sliding plate (515) is rotatably connected to the outer wall of the rotating shaft (511). A connecting rod (516) is fixedly connected to the right side of the shaft (511), and the connecting rod (516) extends into the slide groove (512). A handle (517) is fixedly connected to the left side of the shaft (511). A conical spring (518) is sleeved on the outer wall of the shaft (511). The left side of the conical spring (518) is fixedly connected to the handle (517), and the right side of the conical spring (518) is fixedly connected to the slide plate (515). The slide plate (515) slides in the slide groove (512) through the connecting rod (516), and an anti-slip pad is provided on the handle (517). and a lowering assembly (22), which is mounted on the transport assembly (21); the lowering assembly (22) includes two limiting rods (221) fixedly connected to the top of the transport plate (211), a support plate (222) is provided inside the storage box (213), two fixing blocks (223) are fixedly connected to the right side of the support plate (222), and sliding rods (224) are slidably connected to the two fixing blocks (223), a limiting block (225) is fixedly connected to the side of the two sliding rods (224) that are far apart from each other, and a fixing block (226) is fixedly connected to the side of the two sliding rods (224) that are close to each other, and the two connecting lines ( 514) The sides of the two sliding rods (224) that are far apart from each other are fixedly connected to the second fixed block (226). The outer walls of the two sliding rods (224) are fitted with springs (227). The sides of the two springs (227) that are close to each other are fixedly connected to the two second fixed blocks (226). The sides of the two springs (227) that are far apart from each other are fixedly connected to the two first fixed blocks (223). Two sliding parts are installed on the transport plate (211). The sliding parts include a second sliding rod (228) that is fixedly connected to the top of the transport plate (211). The second sliding rod (228) passes through the support plate (222). The length of the second sliding rod (228) is the same as the length of the limiting rod (221). The stacking method using the automated stacking device for producing the packaging box liner includes the following steps: S1: Place the compressed packaging box liner on the cutting board (112), and then start the electric telescopic rod (311). At this time, the electric telescopic rod (311) will move the pressure chamber (312) downward. When the pressure chamber (312) moves downward, the fixing block three (411), the slide rod (412), the fixing plate (413), the spring two (414), and the cutter (415) will all move downward. The cutter (415) will first contact the connection point of the packaging box liner. As the pressure chamber (312) continues to move downward, the pressure of the cutter (415) on the contact point of the packaging box liner will increase. As the pressure chamber (312) moves downward, it will move the fixing block three (411) downward and compress the spring two (414). After the spring two (414) is compressed, the pressure of the contact point will increase again, thereby achieving the cutting of the connection point of the packaging box liner. S2: When the pressure chamber (312) moves downward, the suction cup (315) and the cutter (415) will simultaneously contact the inner lining of the packaging box. After contact, the air pipe (313) will be activated. At this time, the air pipe (313) will suck out the air from the pressure chamber (312) and the connecting pipe (314). After the air is discharged, a negative pressure will be generated. A certain sealed space will be formed through the contact surface between the suction cup (315) and the inner lining of the packaging box. At this time, the change in air pressure will attract the inner lining of the packaging box. After the cutting is completed, the inner linings of the packaging box will not be connected, but through the connecting pipe ( 314) and suction cup (315) will not fall down when they are attached to the inner lining of the packaging box. At this time, the electric telescopic rod (311) continues to descend, and the pressure chamber (312) will bring the cut inner lining of the packaging box to contact the support plate (222) through the connecting pipe (314) and suction cup (315). After the inner lining of the packaging box contacts the support plate (222), the air pipe (313) is closed to restore the air pressure. At this time, the inner lining of the packaging box will fall off the suction cup (315) and be placed on the support plate (222) to stack the inner lining of the packaging box. S3: As the stacked packaging box liner gets higher and higher, when the connecting pipe (314) and suction cup (315) move the packaging box liner downwards again, they will press the support plate (222) downwards. After being pressed, the support plate (222) will move downwards along with the fixing block 1 (223), the sliding rod 1 (224), the limiting block (225), the fixing block 2 (226), and the spring 1 (227). When the limiting block (225) moves downwards, it will be pushed outwards by the toothed block on the limiting rod (221). When the limiting block (225) moves outwards, it will push the sliding rod 1 (224) and the spring 2 (227) downwards. The second fixed block (226) moves accordingly. When the first sliding rod (224) moves on the first fixed block (223), it will push the second fixed block (226). At this time, the first spring (227) will be pulled outward by the second fixed block (226). As the limit block (225) moves outward, it will pass through a toothed block on the limit rod (221), so the support plate (222) will fall downward. When the support plate (222) falls, it will slide on the second sliding rod (228). Thus, as the height of the inner lining of the packaging box increases, the support plate (222) will continue to move downward. S4: Push the storage box (213). At this time, the inner lining of the packaging box can be transferred by the universal wheel (212) with brake. After reaching the designated position, the inner lining of the packaging box is removed and the support plate (222) needs to be reset. When resetting, turn the handle (517). At this time, the rotating shaft (511) will move accordingly. When the rotating shaft (511) rotates, the take-up reel (513) will wind up the two connecting lines (514). At this time, the conical spring (518) will contract due to being twisted. When the connecting line (514) is wound up, the two fixed blocks (226) will move closer to each other. When they move closer to each other, they will move the sliding rod (224) and the limiting block (225) accordingly. When the fixed block (226) moves, the spring (227) will be compressed. When the limiting block (225) moves, it will stop engaging with the limiting rod (221). At this time, the handle (517) can be pulled up. At this time, the support plate (222) will be pulled up accordingly, thus resetting and being put into use again.

2. The automatic stacking device for producing packaging box liners according to claim 1, characterized in that, Several adsorption elements are arranged in a linear array on the pressure chamber (312).

3. The automatic stacking device for producing packaging box liners according to claim 1, characterized in that, The two fixed blocks (411), the two slide bars (412), the two fixed plates (413), and the two springs (414) are arranged in a mirror image.

4. The automatic stacking device for producing packaging box liners according to claim 1, characterized in that, Two fixed blocks (223), two sliding rods (224), two limiting blocks (225), two fixed blocks (226), and two springs (227) are arranged in a mirror image.

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