Automatic stacking, packaging and bundling device and method for long-strip light and thin sheets

Abstract

The invention relates to an automatic stacking, packaging and bundling device and method for long-strip light and thin pieces, belongs to the technical field of packaging and bundling of the long-strip light and thin pieces, and provides the automatic stacking, packaging and bundling device for the long-strip light and thin pieces to solve the problem that in the prior art, a certain number of regular stacking, packaging and bundling cannot be conducted on the long-strip light and thin pieces. Comprising a material collecting unit, a material stacking unit and a packaging, bundling and transporting unit, through mutual cooperation of the multiple units, long-strip light and thin sheets are guided, clamped and conveyed into the material stacking unit, the material stacking unit receives the multiple long-strip light and thin sheets conveyed by the material collecting unit, and the multiple long-strip light and thin sheets are packaged, bundled and transported through the packaging, bundling and transporting unit. And the strip light and thin sheets are collected and stacked in order and are matched with the packaging, bundling and conveying unit, and the strip light and thin sheets stacked in order are packaged, bundled and conveyed out. And the purposes of full-automatic arrangement, stacking, packaging and bundling of a certain number of long-strip light and thin sheets are achieved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of packaging and bundling technology, specifically relating to an automatic stacking, packaging, and bundling device and method for long, thin, lightweight sheets. Background Technology

[0002] After long, thin, strip-shaped materials (such as thin wood veneers and fan ribs) are processed piece by piece, they need to be neatly stacked and bundled in a certain quantity (e.g., 20 pieces per bundle) for easy transportation and subsequent processing. Currently, the stacking and packaging of long, thin, strip-shaped materials (such as thin wood veneers and fan ribs) is mostly done manually, picking each piece individually, stacking them neatly, and binding them with thin rope. However, this method is time-consuming, inefficient, and cannot be matched with fully automated production lines. Existing automatic picking and stacking technology for long, thin, strip-shaped materials after processing cannot achieve synchronous movement with the processing process, controllable picking posture, and stable and neat stacking into the silo. In existing packaging technologies, packaging can be achieved through plastic wrapping machines, sealing machinery, vegetable packaging machines, etc. However, the aforementioned existing packaging equipment cannot achieve the goal of neatly bundling strip-shaped thin items. Consequently, it cannot automatically bundle and pack long strip-shaped thin items after processing in the previous process, stacking them in the required quantity, automatically aligning and aligning them, and achieving fully automatic bundling and packaging to prevent scattering and facilitate transportation and subsequent processing.

[0003] Furthermore, existing packaging and bundling devices are mostly suitable for packaging single, whole items, or for packaging and bundling several items that have a certain weight, will not scatter, and do not require additional clamping. Therefore, existing packaging and bundling devices cannot meet the fully automatic bundling and packaging requirements for long, thin, and lightweight sheet materials.

[0004] For example, patent document CN114194448A discloses an automatic strapping and packaging machine, including a frame, and a head module, a wrapping module, a belt tensioning module, a belt threading module, a belt guard module, and a belt roll module installed on the frame. The machine achieves the purpose of strapping the entire item through the cooperation of various modules. However, this packaging machine cannot neatly stack and pack long, thin, and light items, and cannot neatly stack and pack long, thin, and light items in a certain quantity.

[0005] Therefore, there is an urgent need to design an automatic stacking, packaging, and bundling device and method for long, thin sheets to solve the above problems. Summary of the Invention

[0006] To address the problem in existing technologies that cannot neatly stack, pack, and bundle a certain number of long, thin sheets, this invention provides an automatic stacking, packing, and bundling device and method for long, thin sheets. This device and method enable the automatic stacking, neat stacking, packing, and bundling of a certain number of long, thin sheets, thereby facilitating transportation and subsequent processing.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] An automatic stacking, packaging, and bundling device for long, thin, lightweight sheets, the device comprising: [the following components are mounted on a platform:]

[0009] The material gathering unit is used to guide, clamp, and transport long, thin sheets into the material stacking unit;

[0010] The material stacking unit receives multiple long, thin strips transported by the material gathering unit, and gathers and stacks the multiple long, thin strips neatly.

[0011] The packing and bundling transport unit, in conjunction with the material stacking unit, packs and bundles multiple neatly stacked long, thin sheets and transports them out.

[0012] Preferably, the material gathering unit includes:

[0013] The lifting guide mechanism is set at the exit of the long, thin sheet to change the movement trajectory of the long, thin sheet so that it can smoothly enter the swing arm chuck.

[0014] The swing arm chuck is located at the end of the lifting guide mechanism and is used to receive and clamp long, thin strips of material passing through the lifting guide mechanism.

[0015] The linear guide rail is connected to the swing arm chuck and is used to drive the swing arm chuck to move.

[0016] Preferably, the lifting guide mechanism includes:

[0017] The lifting cylinder is mounted on the platform;

[0018] The guide groove is located at the extension and retraction end of the lifting cylinder;

[0019] The curved blade is set on the inner wall of the guide groove and is used to guide long, thin strips into the guide groove.

[0020] Preferably, the material stacking unit includes:

[0021] The material feeding box is set on the platform;

[0022] The side alignment mechanism is set on the material box and is used to push and align multiple long, thin strips inside the material box.

[0023] Rotary pressing mechanism one is set on the side of the material box and is used to press down multiple long, thin strips after alignment;

[0024] The clamping mechanical claw, in conjunction with the rotary clamping mechanism, clamps and transfers multiple long, thin strips that are clamped by the rotary clamping mechanism.

[0025] Preferably, the material feeding box includes:

[0026] Material feeding box one is set on the platform;

[0027] The second material drop box is retractable and mounted on the platform, and is used in conjunction with the first material drop box.

[0028] Preferably, the packaging and bundling transport unit includes:

[0029] A single-piece heat shrink film tub is set on the platform;

[0030] The pressing and cutting hot melt assembly presses the single heat shrink film on the single heat shrink film barrel to form a film wall with the single heat shrink film barrel, and cooperates with the rotating clamping mechanical claw to fuse and cut the single heat shrink film.

[0031] A rotating gripper, in conjunction with a gripper, clamps and rotates multiple long, thin strips on the gripper, causing a single heat-shrink film to wrap around multiple long, thin strips.

[0032] The lifting heat shrink film pressure plate is set between the rotating clamping mechanical claw and the single heat shrink film barrel, and is used to press down the single heat shrink film on the single heat shrink film barrel.

[0033] Preferably, the clamping and cutting hot melt assembly includes:

[0034] Two rotating pressing mechanisms are set on both sides of the lifting heat shrink film pressing plate and cooperate with the lifting heat shrink film pressing plate to complete the pressing of a single heat shrink film.

[0035] A heat-sealing knife is set at the upper end of a rotating gripper claw and is used to heat-seal a single piece of heat-shrink film wound on the second gripper claw.

[0036] The hot melt knife is located on one side of the rotary pressing mechanism and cooperates with the rotary pressing mechanism to melt and cut a single piece of heat shrink film.

[0037] The second objective of this invention is to provide an operating method for an automatic stacking, packaging, and bundling device for long, thin sheets, the operating method comprising:

[0038] The material gathering unit guides and clamps individual long, thin sheets, and moves them sequentially to the material stacking unit;

[0039] The material stacking unit stacks multiple long, thin sheets into bundles, and then clamps them with mechanical claws in the material stacking unit in preparation for bundling.

[0040] The packaging and transport unit works in conjunction with the gripping mechanical claw to package, bundle, and transport long, thin sheets.

[0041] Preferably, the specific operation method for packaging, bundling, and transporting bundles of long, thin sheets by means of the cooperation between the packaging and transport unit and the gripping mechanical claw includes:

[0042] Use a gripping mechanical claw to hold multiple long, thin strips of material in the material box, and rotate the gripping mechanical claw to wrap a single heat shrink film around the multiple long, thin strips of material.

[0043] The heat sealing knife and the heat melting knife are used to perform heat melting and fusion on the rotating clamping mechanical claw and the single heat shrink film.

[0044] By using a material rotation and reversal device and a clamping mechanical claw, the ends of multiple long, thin sheets of material are heat-shrinked inside a heat-shrinking barrel.

[0045] Using the gripping mechanical claw two in conjunction with the gripping mechanical claw, multiple long, thin strips of material that have been bundled and packaged are sent out onto the conveyor belt.

[0046] The beneficial effects of this invention are: This invention discloses an automatic stacking, packaging, and bundling device and method for long, thin sheets. Compared with the prior art, the improvement of this invention lies in:

[0047] (1) The present invention designs a technical solution in which long strips of thin and light materials are processed one by one, and then held by a claw that can move in a straight line and rotate, and neatly stacked in a material trough. Another mechanical claw that can move in both X and Y directions clamps the bundle of long strips of thin and light materials, so as to realize the wrapping of a section of heat-shrinkable film along the length direction to form a completely wrapped heat-shrinkable film layer. After heat shrinking, the heat-shrinkable film layer is slightly longer than one end of the bundle of long strips of thin and light materials. After heat shrinking, this part forms a slit smaller than the radial dimension of the bundle of thin and light materials, which is more conducive to achieving a more secure packaging and bundling effect.

[0048] (2) The material gathering unit designed in this invention can screen qualified and unqualified products during the stacking of long, thin strips. Specifically, when the long, thin strip is qualified, the lifting guide mechanism is raised, the swing arm claw moves forward and opens, and the processed long, thin strip is guided into the swing arm claw by the lifting guide mechanism. After the swing arm claw clamps the strip from the end, it moves backward to the swing position along with the linear guide rail. The swing arm rotates, and the strip smoothly enters the dropping box. When unqualified long, thin strips are processed, the lifting guide mechanism falls, the swing arm claw moves backward to the swing position, and the unqualified long, thin strip falls freely onto the platform and is then pushed into the waste bin.

[0049] (3) The present invention designs a single heat shrink film barrel, a pressing and cutting hot melt assembly and a lifting heat shrink film pressure plate. Through the cooperation of these multiple components, a single film wall can be formed. The single film wall is conducive to cooperating with the clamping mechanical claw, thereby facilitating the automatic application of heat shrink film to the stack of materials, and at the same time preparing for the next heat shrink film application.

[0050] (4) The present invention utilizes hot melting to achieve the process objective of sealing and wrapping multiple layers of film without disintegration, and heat shrinking to achieve tight wrapping. Specifically, a temperature-controlled heat sealing knife is used to achieve hot melting and bonding of multiple layers of film, ensuring that the heat shrink film wrapping layer will not loosen. At the same time, a hot melting knife is used to cut off the single film connected to the film tube on the side, so that the film tightly wraps the thin sheet of material, achieving a firm packaging and binding. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the automatic stacking, packaging, and bundling device of the present invention. Figure 1 ;

[0052] Figure 2 This is a schematic diagram of the automatic stacking, packaging, and bundling device of the present invention. Figure 2 ;

[0053] Figure 3 A schematic diagram of the material gathering unit structure for the invention;

[0054] Figure 4 A schematic diagram of the structure of the lifting guide mechanism for the invention;

[0055] Figure 5 Schematic diagram of the feeding box structure for invention Figure 1 ;

[0056] Figure 6 Schematic diagram of the feeding box structure for invention Figure 2 ;

[0057] Figure 7 A schematic diagram of the invention's clamping mechanical claw structure;

[0058] Figure 8 Schematic diagram of the structure for packaging, bundling, and transporting units. Figure 1 ;

[0059] Figure 9 Schematic diagram of the structure for packaging, bundling, and transporting units. Figure 2 ;

[0060] Figure 10 A schematic diagram of the structure of the rotary reversing device for the invention;

[0061] The components include: 1. Saw blade; 2. Side alignment mechanism; 201. Needle cylinder; 202. Push plate; 3. Material drop box; 301. Material drop box one; 302. Material drop box two; 3021. Lifting hydraulic rod; 4. Clamping mechanical claw feed cylinder; 5. Clamping mechanical claw; 501. Finger cylinder two; 502. Clamping claw two; 6. Damped rolling support wheel; 7. Drive screw; 8. Single heat shrink film canister; 801. Single heat shrink film; 802. Rotary pressing mechanism two; 803. Lifting heat shrink film pressure plate; 8031. Cylinder one. 8032, Pressure plate; 8033, Concave arc groove; 804, Guide wheel; 9, Heat shrink tub; 10, Rotary clamping mechanical claw; 11, Heat sealing knife; 12, Heat melting knife; 13, Rotary clamping mechanism one; 1301, Rotary clamping cylinder; 1302, Pressure block; 14, Rotary reversing device; 1401, Finger cylinder three; 1402, Claw three; 15, Lifting guide mechanism; 1501, Lifting cylinder; 1502, Guide groove; 1503, Arc blade; 16, Swing arm claw; 1601, Linear guide rail. Detailed Implementation

[0062] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0063] Example:

[0064] See attached document Figure 1-10 The device shown is an automatic stacking, packaging, and bundling device for long, thin sheets. It includes a material gathering unit, a material stacking unit, and a packaging, bundling, and transporting unit. The material gathering unit guides, clamps, and moves the processed, qualified long, thin sheets, transporting them to the material stacking unit. The material stacking unit gathers and stacks multiple long, thin sheets neatly, and works with the packaging, bundling, and transporting unit to package and bundle them. Finally, the packaged and bundled materials are transported to a conveyor belt for shipment.

[0065] The material gathering unit includes a lifting guide mechanism 15, a swing arm claw 16, and a linear guide rail 1601. The lifting guide mechanism 15 is located near the exit of the long, thin sheet (item) and is used to change the movement trajectory of the item so that it falls into the swing arm claw 16. The swing arm claw 16 is located at the rear end of the lifting guide mechanism 15. When the item passes through the lifting guide mechanism 15, it can fall accurately into the swing arm claw 16. The swing arm claw 16 is connected to the linear guide rail 1601 and can move linearly through the linear guide rail 1601.

[0066] The working principle of the material collection unit is as follows:

[0067] S1. When a qualified long strip of thin material (hereinafter referred to as material) is produced, the lifting guide mechanism 15 is raised, the swing arm chuck 16 moves forward and opens, and the processed material is guided by the lifting guide mechanism 15 and enters the opened swing arm chuck 16.

[0068] For details, please refer to the appendix. Figure 3-4 As shown, the lifting guide mechanism 15 includes a lifting cylinder 1501, a guide groove 1502, and an arc-shaped blade 1503. The lifting cylinder 1501 is fixedly mounted on the platform, the guide groove 1502 is fixedly connected to the telescopic end of the lifting cylinder 1501, and the arc-shaped blade 1503 is fixedly installed in the guide groove 1502 against the groove wall. The arc-shaped blade 1503 is located at the front end of the saw blade 1 and is aligned with the saw blade 1.

[0069] The swing arm chuck 16 includes a finger cylinder and two chucks. The two chucks are fixedly connected to the finger cylinder by bolts. The finger cylinder drives the two chucks to open and close. At the same time, a telescopic rotary cylinder is connected to the finger cylinder. The telescopic rotary cylinder can drive the swing arm chuck 16 to move back and forth and rotate, so that the swing arm chuck 16 can keep the cutting piece at the same speed and release the material. When in use, the swing arm chuck 16 clamps a single piece of material, and the single piece of material is in a vertical state.

[0070] If a defective piece is produced, the lifting guide mechanism 15 descends, the swing arm chuck 16 retracts to the swing position (near the drop box 3), and the defective piece falls freely onto the platform and is then pushed into the waste bin.

[0071] During use, the material being cut by the saw blade 1 is guided by the arc blade 1503, deviating from the saw blade and entering the guide groove 1502. When the material extends out of the guide groove 1502, the swing arm chuck 16 moves backward and moves backward at the same speed as the material, and clamps it. After the saw blade 1 completely separates the material from the material body, the material is carried backward by the swing arm chuck 16 to the discharge box 3, where it is flipped over and discharged.

[0072] S2. The swing arm chuck 16 moves backward along with the linear guide rail 1601 to the swing position (directly above the material box 3). The swing arm chuck 16 rotates 90 degrees to change the material from a vertical state to a horizontal state, and releases the chuck. The material falls vertically into the material box 3. The swing arm chuck 16 rotates in the opposite direction back to the initial position, waiting for the next material.

[0073] See attached document Figure 5-6As shown, the material stacking unit includes a material drop box 3, a side alignment mechanism 2, and a rotary pressing mechanism 13. The material drop box 3 corresponds to the swing position of the swing arm claw 16. The side alignment mechanism 2 is set on the material drop box 3 and moves up and down synchronously with the material drop box 3 to push and align the pieces inside the material drop box 3. The rotary pressing mechanism 13 is erected on one side of the material drop box 3 and is located directly above it. It works in conjunction with the side alignment mechanism 2 to press down and fix the aligned pieces for easy clamping later.

[0074] The material drop box 3 includes a first material drop box 301 and a second material drop box 302. The first material drop box 301 is fixedly installed on the platform. The lower end of the second material drop box 302 is connected to a lifting hydraulic rod 3021. The lifting hydraulic rod 3021 can drive the second material drop box 302 to move up and down, so that the second material drop box 302 can be aligned with the first material drop box 301 and stably catch the material. When the second material drop box 302 moves down to a height lower than the first material drop box 301, the end of the material is suspended in the air, which is convenient for clamping.

[0075] The side alignment mechanism 2 includes a needle cylinder 201 and a push plate 202. The push plate 202 is mounted on the inner wall of the first material box 301 via the needle cylinder 201, and the needle cylinder 201 is mounted on the outer wall of the first material box 301. In the initial state, the push plate 202 is in close contact with the inner wall of the first material box 301. When in use, the needle cylinder 201 is activated, and the needle cylinder 201 pushes the push plate 202 from one side of the first material box 301 to the symmetrical side, thereby pushing the pieces that have fallen into the first material box 301 and the second material box 302 to be aligned from the side.

[0076] The rotary clamping mechanism 13 includes a rotary clamping cylinder 1301 and a clamping block 1302. The clamping block 1302 is set on one side of the material box 301 through the rotary clamping cylinder 1301, and the clamping block 1302 is vertically connected to the rotary clamping cylinder 1301 and located directly above the material box 301. When in use, the rotary clamping cylinder 1301 drives the clamping block 1302 to move up and down and rotate directly above the material box 301, thereby clamping the thin sheets above the stack. When not in use, it rotates to the outside of the material box 301 without affecting the material dropping. The rotary clamping cylinder 1301 can be a standard pneumatic rotary clamping cylinder.

[0077] The working principle of the material stacking unit is as follows:

[0078] S3. After the required number of pieces fall into the material box 3 (material box 1 301 and material box 2 302 are in a flush state), the cylinder 201 of the side alignment mechanism 2 drives the push plate 202 to move. The push plate 202 moves and squeezes one side of the material pile in the material box 3, pushing it to be aligned.

[0079] S4. The rotary pressing mechanism 13's rotary pressing cylinder 1301 drives the pressing block 1302 to move down. The pressing block 1302 presses down on the pile of pieces that are squeezed and fixed by the side alignment mechanism 2, and presses and fixes them from the top position. Then the side alignment mechanism 2 returns to the initial state.

[0080] S5. The second material box 302 is lowered to a height lower than the first material box 301, so that the end of the material stack is suspended in the air, which is convenient for clamping.

[0081] S6. The clamping mechanical claw feed cylinder 4 pushes the clamping mechanical claw 5 close to the material box 3, and makes the clamping mechanical claw 5 clamp the stack of materials in the material box 3.

[0082] For details, please refer to the attached document. Figure 7 As shown, the gripping mechanical claw 5 includes a finger cylinder 2 501 and two gripper claws 2 502. The two gripper claws 2 502 are fixedly connected to the finger cylinder 2 501 by bolts. The finger cylinder 2 501 can drive the two gripper claws 2 502 to open and close. The gripping mechanical claw feed cylinder 4 is fixedly connected to the finger cylinder 2 501 and is used to drive the gripping mechanical claw 5 to extend and retract.

[0083] To ensure the stability of the two grippers 502 when holding a stack of objects, several silicone protrusions to increase friction are provided on the inner side of the two mechanical grippers 502.

[0084] The packing and bundling transport unit includes: a drive screw 7, a single heat shrink film tube 8, a lifting heat shrink film pressure plate 803, two rotating clamping mechanisms 802, a rotating clamping mechanical claw 10, a heat sealing knife 11 and a heat melting knife 806, and a heat shrink tube 9.

[0085] The gripper 5 is connected to the drive screw 7, which drives the gripper 5 to move linearly. Specifically, a mounting plate is fixed to the nut of the drive screw 7, and the mounting plate is fixedly connected to the gripper feed cylinder 4. The gripper feed cylinder 4 is fixedly connected to the finger cylinder 501 of the gripper 5. When the drive screw 7 is started, the nut of the drive screw 7 moves linearly on the screw of the drive screw 7, thereby driving the gripper feed cylinder 4 and the gripper 5 to move linearly synchronously.

[0086] See attached document Figure 8-9 As shown, a single heat shrink film canister 8 is rotatably mounted on a platform, with damped rolling support wheels 6 on both sides of its lower end. The damped rolling support wheels 6 are in contact with the outer bottom of the single heat shrink film canister 8. When the single heat shrink film canister 8 rotates, the damped rolling support wheels 801 rotate synchronously. When the single heat shrink film canister 8 stops rotating, the damped rolling support wheels 801 prevent the single heat shrink film canister 8 from reversing.

[0087] Two guide wheels 804 are also provided at the lower end of the single heat shrink film barrel 8. The guide wheels 804 can have the same structure as the damped rolling support wheel 6. They are located directly below the single heat shrink film barrel 8, and the single heat shrink film 801 on the single heat shrink film barrel 8 passes between the two guide wheels 804. The two guide wheels 804 are in contact with the front and back of the single heat shrink film 801. When the free end of the single heat shrink film 801 is pulled, the single heat shrink film 801 drives the two guide wheels 804 to rotate synchronously, and finally drives the single heat shrink film barrel 8 to rotate. When the force applied to the free end of the single heat shrink film 801 disappears, the single heat shrink film 801 will not rotate back under the action of the two guide wheels 804.

[0088] The lifting heat shrink film pressure plate 803 is set on one side of the single heat shrink film barrel 8, and is used to press down the single heat shrink film 801 from the middle of the single heat shrink film barrel 8 and the stretching end, so that the two rotating pressing mechanisms 802 can fix the single heat shrink film 801 on the platform.

[0089] Specifically, the lifting heat shrink film pressure plate 803 includes a cylinder 8031 ​​and a pressure plate 8032. The cylinder 8031 ​​is mounted on the platform via a frame, and the pressure plate 8032 is located at the telescopic end of the cylinder 8031. The pressure plate 8032 has concave arc-shaped grooves 8033 on both sides, which cooperate with the rotating pressing mechanism 802.

[0090] Two rotary pressing mechanisms 802 are symmetrically arranged on the platform and located on both sides of the pressure plate 8032. The rotary pressing mechanism 802 has the same structure and operating principle as the rotary pressing mechanism 13, so it will not be described in detail here. After the pressure plate 8032 presses down on the single heat shrink film 801, the rotary pressing mechanism 802 moves up and rotates to the upper side of the concave arc groove 8033, and then moves down to press the single heat shrink film 801 from both sides at the concave arc groove 8033.

[0091] The heat-sealing knife 11 and the heat-melting knife 806 are fixedly connected to the frame set on the platform by the cylinder 2. The heat-sealing knife 11 and the heat-melting knife 806 are set at intervals. In use, the cylinder 2 drives the heat-sealing knife 11 to descend so that the heat-sealing knife 11 presses against the surface of the fully wrapped material stack. At the same time, the high temperature independently and accurately controlled by the heat-melting knife 806 melts the single heat-shrink film 801. At this time, the free end of the melted single heat-shrink film 801 is pressed against the lower end of the rotating clamping mechanism 2 802. Then, under the independent and accurate control of the high temperature of the heat-sealing knife 11, the heat-sealing knife 11 cooperates with the moving clamping mechanical claw 5 to wrap the outer periphery of the material stack with multiple layers of film and heat-melt bond it to form a fully wrapped single heat-shrink film 801 wrapping layer.

[0092] See attached document Figure 10As shown, the rotary reversing device 14 includes a finger cylinder 1401 and two grippers 1402. The two grippers 1402 are fixed to the finger cylinder 1401 by bolts. The finger cylinder 1401 is fixedly connected to a rotary motor 1403. The rotary motor 1403 is fixed to the platform by a frame. In use, the output end of the rotary motor 1403 drives the finger cylinder 1401 to rotate, and the finger cylinder 1401 drives the two grippers 1402 to open and close for clamping.

[0093] Among them, the two jaws 31402 are equipped with teeth on both sides to facilitate the stability of the object during the clamping process.

[0094] S7. Manually stretch the free end of the single heat shrink film 801 on the single heat shrink film barrel 8, and pull the end of the single heat shrink film 801 down to the two rotary pressing mechanisms 802. Use the two rotary pressing mechanisms 802 to press the two sides of the end of the single heat shrink film 801, so that the end of the single heat shrink film 801 forms a single film wall, and the single film wall is located on the forward path of the moving clamping mechanical claw 5.

[0095] S8. The feed cylinder 4 and the moving gripper 5 of the mechanical claw are moved horizontally by the drive screw 7, and the moving gripper 5 contacts and pushes the single film wall, so that the single heat shrink film 801 is partially wrapped around one side of the stack of objects. Finally, the single heat shrink film 801 is driven into the open rotating gripper 10, forming a state in which the single heat shrink film 801 partially wraps around the stack of objects. Then the rotating gripper 10 closes and clamps, and the gripper 5 is released and retracted.

[0096] The structure and operating principle of the second mechanical gripper 10 are the same as those of the fifth mechanical gripper, so they will not be described in detail here. The second mechanical gripper 10 is connected to the output end of the motor. When the motor is turned on, the second mechanical gripper 10 will rotate.

[0097] S9. The mechanical claw 10 rotates the material stack 360° or multiple times, while simultaneously activating the rotating clamping mechanism 802 to move upward and rotate to release the single heat shrink film 801, so that the single heat shrink film 801 can be wrapped in multiple layers on the material stack, forming a completely enclosed wrapping film layer on the outer periphery of the material stack. During the wrapping process, the single heat shrink film 801 drives the single heat shrink film barrel 8 to rotate synchronously.

[0098] S10. After the required number of turns are wound, the clamping mechanical claw 2 10 stops rotating, and the lifting heat shrink film pressure plate 803 moves down, pressing the stretched single heat shrink film 801 onto the platform from the middle of the clamping mechanical claw 2 10 and the single heat shrink film barrel 8. At this time, the single heat shrink film 801 has a V-shaped structure. Then, the two rotating pressing mechanisms 2 802 are activated to move them up and rotate, pressing the single heat shrink film 801 down from both sides to fix the single heat shrink film 801.

[0099] S11. The heat-sealing knife 11 and the hot-melt knife 806 rise synchronously. After the heat-sealing knife 11 rises, it is aligned with the clamping mechanical claw 2 10 wrapped with multiple layers of single-piece heat-shrink film 801 and hot-melt bonded. At the same time, the hot-melt knife 806 melts the single-piece heat-shrink film 801 from the rear side of the rotary pressing mechanism 2 802. At this time, the rotary pressing mechanism 2 802 presses down on the free end of the single-piece heat-shrink film 801, forming a single-piece film wall with the single-piece heat-shrink film barrel 8, which facilitates the next passage and winding of the clamping mechanical claw 5.

[0100] S12. The clamping mechanical claw feed cylinder 4 drives the clamping mechanical claw 5 to extend forward again and clamp the stack of objects wrapped by the single heat shrink film 801, and retracts to the original position of the clamping mechanical claw feed cylinder 4.

[0101] S13. The mechanical claw 5 is moved to the position of the heat shrink tub 9 by the drive screw 7. The mechanical claw feed cylinder 4 extends forward and inserts the end of the stack of objects wrapped by the single heat shrink film 801 into the heat shrink tub 9. The end of the stack of objects wrapped by the single heat shrink film 801 is heated to make the single heat shrink film 801 tightly wrap the end of the stack of objects. The mechanical claw feed cylinder 4 drives the mechanical claw 5 and the long strip of thin objects that have been heat-shrinked to retract.

[0102] S14. Move the clamping mechanical claw 5 to the material rotation and reversing device 14, and drive the long strip of thin material bundle that has been heat-shrinked at one end to extend forward, so that the long strip of thin material bundle that has been heat-shrinked at one end enters the clamping claw of the rotation and reversing device 14 and is clamped by it. Move the clamping mechanical claw 5 to open and retract, and the rotation and reversing device 14 drives the long strip of thin material bundle to rotate 180 degrees to turn around, so that the heat-shrinked end of the long strip of thin material bundle is aligned with the clamping mechanical claw 5. The clamping mechanical claw feed cylinder 4 drives the clamping mechanical claw 5 to return again and clamp the long strip of thin material bundle that has been reversed. Repeat step S14 to complete the heat shrinking of the other end of the material stack.

[0103] S15. Move the clamping mechanical claw 5 to the position of the clamping mechanical claw 2 10, and drive the long strip of thin material bundle forward, so that the heat-shrinked long strip of thin material bundle re-enters the clamping mechanical claw 2 10 and is clamped. Move the clamping mechanical claw 5 to release it and return to the initial state (i.e., near the material drop box 3) to wait for the next batch of packaging.

[0104] S16. The mechanical gripper 210 rotates 90 degrees and releases, allowing the heat-shrinked long strip of thin material to fall into the conveyor belt for transport through the conveyor belt inlet.

[0105] This invention also provides an automatic stacking, packaging, and bundling method for long, thin sheets, the method comprising:

[0106] S1. Manually stretch the free end of the single heat shrink film 801 on the single heat shrink film barrel 8, and pull the end of the single heat shrink film 801 down to the two rotary pressing mechanisms 802. Use the two rotary pressing mechanisms 802 to press the two sides of the end of the single heat shrink film 801, so that the end of the single heat shrink film 801 forms a single film wall, and the single film wall is located on the forward path of the moving clamping mechanical claw 5.

[0107] S2. When a qualified long strip of thin material (hereinafter referred to as material) is produced, the lifting guide mechanism 15 is raised, the swing arm chuck 16 moves forward and opens, and the processed material is guided by the lifting guide mechanism 15, enters the opened swing arm chuck 16 and is finally clamped by the swing arm chuck 16.

[0108] S3. The swing arm chuck 16 moves backward along with the linear guide rail 1601 to the swing position (directly above the material box 3). The swing arm chuck 16 rotates 90 degrees to change the material from a vertical state to a horizontal state, and releases the chuck. The material falls vertically into the material box 3. The swing arm chuck 16 rotates in the opposite direction back to the initial position, waiting for the next material.

[0109] S4. After the required number of pieces have fallen into the material box 3, the side alignment mechanism 2 presses one side of the material pile in the material box 3 to push it straight and align it.

[0110] S5. The rotating clamping mechanism 13 moves down and presses down on the stack of pieces that are squeezed and fixed by the side alignment mechanism 2, and then the side alignment mechanism 2 returns to the initial state.

[0111] S6. The second material box 302 is lowered to a height lower than the first material box 301, so that the end of the material stack is suspended in the air, which is convenient for clamping.

[0112] S7. Push the clamping mechanical claw 5 close to the material box 3, and make the clamping mechanical claw 5 clamp the stack of materials in the material box 3.

[0113] S8. The movable clamping mechanical claw 5 moves horizontally and contacts and pushes the single-piece film wall formed in step 1, so that the single-piece heat shrink film 801 is partially wrapped around one side of the stack of objects. Finally, the single-piece heat shrink film 801 is driven into the open rotating clamping mechanical claw 10, forming a state in which the single-piece heat shrink film 801 partially wraps around the stack of objects. Then the rotating clamping mechanical claw 10 closes and clamps, and the clamping mechanical claw 5 is released and retracted.

[0114] S9. The mechanical claw 10 rotates the material stack multiple times, while the rotating clamping mechanism 802 moves upward and rotates to release the single heat shrink film 801, so that the single heat shrink film 801 can be wrapped in multiple layers on the material stack, forming a completely enclosed wrapping film layer on the outer periphery of the material stack. During the wrapping process, the single heat shrink film 801 drives the single heat shrink film barrel 8 to rotate synchronously.

[0115] S10. After the required number of turns are wound, the clamping mechanical claw 2 10 stops rotating, the lifting heat shrink film pressure plate 803 moves down, and presses the stretched single heat shrink film 801 down onto the platform from the middle of the clamping mechanical claw 2 10 and the single heat shrink film barrel 8. Then, the two rotating pressing mechanisms 2 802 are started to move up and rotate, pressing down on the single heat shrink film 801 from both sides to fix the single heat shrink film 801.

[0116] S11. The heat-sealing knife 11 and the hot-melt knife 806 rise synchronously. After the heat-sealing knife 11 rises, it is aligned with the clamping mechanical claw 2 10 wrapped with multiple layers of single-piece heat-shrink film 801 and hot-melt bonded. At the same time, the hot-melt knife 806 melts the single-piece heat-shrink film 801 from the rear side of the rotary pressing mechanism 2 802. At this time, the rotary pressing mechanism 2 802 presses down on the free end of the single-piece heat-shrink film 801, forming a single-piece film wall with the single-piece heat-shrink film barrel 8, which facilitates the next passage and winding of the clamping mechanical claw 5.

[0117] S12. The gripping mechanical claw 5 extends forward again to grip the stack of sheets wrapped by the single heat-shrink film 801, and then retracts.

[0118] S13. Move the clamping mechanical claw 5 to the position of the heat shrink tub 9 and extend it forward to insert the end of the stack of objects wrapped by the single heat shrink film 801 into the heat shrink tub 9. Heat the end of the stack of objects wrapped by the single heat shrink film 801 to achieve tight wrapping of the end of the stack of objects by the single heat shrink film 801. After heat shrinking is completed, the clamping mechanical claw 5 retracts.

[0119] S14. Move the clamping mechanical claw 5 to the material rotation and reversing device 14, and drive the material stack with one end completed by heat shrinking to extend forward, so that the material stack with one end completed by heat shrinking enters the clamping claw of the rotation and reversing device 14 and is clamped by it. Move the clamping mechanical claw 5 to open and retract, and the rotation and reversing device 14 rotates the material stack 180 degrees to turn around, so that the heat-shrinked end of the material stack is aligned with the clamping mechanical claw 5. The clamping mechanical claw 5 returns again and clamps the material stack with the reversal completed. Repeat step S13 to complete the heat shrinking of the other end of the material stack.

[0120] S15. Move the clamping mechanical claw 5 to the position of the clamping mechanical claw 2 10, and extend the animal piece stack forward so that the heat-shrinked animal piece stack re-enters the clamping mechanical claw 2 10 and is clamped. Move the clamping mechanical claw 5 to release it and return it to its initial state (i.e., near the drop box 3) to wait for the next batch of packaging.

[0121] S16. The mechanical gripper 210 rotates 90 degrees and releases, allowing the heat-shrinked long strip of thin material to fall into the conveyor belt for transport through the conveyor belt inlet.

[0122] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic stacking, packaging, and bundling device for long, thin, lightweight sheets, characterized in that, The device includes components mounted on a platform: The material gathering unit is used to guide, clamp, and transport long, thin sheets into the material stacking unit; The material stacking unit receives multiple long, thin strips transported by the material gathering unit, and gathers and stacks the multiple long, thin strips neatly. The packing and bundling transport unit, in conjunction with the material stacking unit, packs and bundles multiple neatly stacked long, thin sheets and transports them out.

2. The automatic stacking, packaging, and bundling device for long, thin sheets according to claim 1, characterized in that, The material collection unit includes: The lifting guide mechanism (15) is set at the outlet of the long strip of thin sheet to change the movement trajectory of the long strip of thin sheet so that it can smoothly enter the swing arm chuck (16). The swing arm chuck (16) is located at the end of the lifting guide mechanism (15) and is used to receive and clamp the long, thin sheet passing through the lifting guide mechanism (15). A linear guide (1601) is set on the platform and connected to the swing arm chuck (16) to drive the swing arm chuck (16) to move.

3. The automatic stacking, packaging, and bundling device for long, thin sheets according to claim 2, characterized in that, The lifting guide mechanism (15) includes: The lifting cylinder (1501) is mounted on the platform; The guide groove (1502) is located at the telescopic end of the lifting cylinder (1501); An arc-shaped blade (1503) is disposed on the inner wall of the guide groove (1502) for guiding a long, thin sheet into the guide groove (1502).

4. The automatic stacking, packaging, and bundling device for long, thin sheets according to claim 1, characterized in that, The material stacking unit includes: The material drop box (3) is set on the platform; The side alignment mechanism (2) is set on the material box (3) and is used to push and align multiple long and thin strips in the material box (3); Rotary pressing mechanism 1 (13) is set on the side of the material box (3) and is used to press down multiple long strips of thin sheet after alignment; The clamping mechanical claw (5) cooperates with the rotary clamping mechanism (13) to clamp and transfer multiple long, thin strips clamped by the rotary clamping mechanism (13).

5. The automatic stacking, packaging, and bundling device for long, thin sheets according to claim 4, characterized in that, The material drop box (3) includes: Material feeding box 1 (301) is set on the platform; The second material drop box (302) is retractable and can be installed on the platform and is used in conjunction with the first material drop box (301).

6. The automatic stacking, packaging, and bundling device for long, thin sheets according to claim 4, characterized in that, Packaging and bundling of transport units include: A single heat shrink film tub (8) is set on the platform; The pressing and cutting hot melt assembly presses the single heat shrink film (801) on the single heat shrink film barrel (8) and cooperates with the rotating clamping mechanical claw (10) to fuse and cut the single heat shrink film (801). The rotating gripper (10) cooperates with the gripper (5) to make a single heat shrink film (801) wrap multiple long strips of thin film; A lifting heat shrink film pressure plate (803) is set between the rotating clamping mechanical claw (10) and the single heat shrink film barrel (8) for pressing down the single heat shrink film (801) on the single heat shrink film barrel (8).

7. The automatic stacking, packaging, and bundling device for long, thin sheets according to claim 6, characterized in that, The clamping and cutting hot melt assembly includes: Two rotary pressing mechanisms (802) are set on both sides of the lifting heat shrink film press plate (803) and cooperate with the lifting heat shrink film press plate (803) to complete the pressing of a single heat shrink film (801); A heat-sealing knife (11) is set on the upper end of a rotating gripper (10) and is used to heat-seal a single heat-shrink film (801) wrapped on the second gripper (10). A hot melt knife (806) is located on one side of the rotary pressing mechanism (802) and cooperates with the rotary pressing mechanism (802) to melt and cut a single piece of heat shrink film (801).

8. The operating method of the automatic stacking, packaging, and bundling device for long, thin sheets as described in any one of claims 1-7, characterized in that, The operation method includes: The material gathering unit guides and clamps individual long, thin sheets, and moves them sequentially to the material stacking unit; The material stacking unit stacks multiple long, thin strips into bundles, and clamps them with the clamping mechanical claw (5) in the material stacking unit in preparation for bundling; The packaging and transport unit works in conjunction with the gripping mechanical claw (5) to package, bundle, and transport the long, thin sheets.

9. The operating method according to claim 8, characterized in that, The specific operation method for packaging, bundling, and transporting bundles of long, thin sheets by means of the cooperation between the packaging and transport unit and the clamping mechanical claw (5) includes: Using the clamping mechanical claw (5) to clamp multiple long, thin strips of material in the material box (3), rotating the clamping mechanical claw (10) to wrap a single heat shrink film (801) around the multiple long, thin strips of material; The heat-sealing knife (11) and the heat-melting knife (806) are used to act on the rotating clamping mechanical claw (10) and the single heat-shrink film (801) to complete the heat-shrinking and melting process; Using the material rotation and reversing device (14) and the clamping mechanical claw (5), the ends of multiple long, thin sheets are heat-shrinked in the heat shrink tub (9); Using the gripping mechanical claw 2 (10) in conjunction with the gripping mechanical claw (5), multiple long, thin strips of material that have been bundled and packaged are sent out onto the conveyor belt.

Images