Plastic bag folding and bundling device

Abstract

The invention discloses a plastic bag folding and bundling device which comprises a conveying table and supporting legs. According to the plastic bag folding device, the moving arms and the clamping grooves are adopted, when plastic bags are folded, a person can adjust the positions of the moving arms according to different types and sizes of the plastic bags, then the distance between the moving arms is changed, the moving arms can be located at the positions of bag bodies of the plastic bags or the positions of multiple sets of lifting handles, and therefore the plastic bags can be folded conveniently. According to the plastic bag clamping device, the clamping ends of the plastic bags can be inserted into the clamping grooves after clamping of the different plastic bags is completed, and due to the fact that the length of the clamping grooves is far larger than that of the plastic bags, the plastic bags of the different types can be fixed; and subsequent rotary folding operation is facilitated, the device can fold different types of plastic bags, the using effect of the device is improved, and the device has the advantages of being high in universality and multipurpose.

Description

Technical Field

[0001] The invention relates to the technical field of plastic bag production, and in particular to a plastic bag folding and bundling device. Background Art

[0002] In the production process of plastic bags, it is necessary to punch and cut out handles, then fold the two handles, and then fold the bag body of the plastic bag. After folding, it is bundled by a bundling mechanism for easy packaging, storage, counting, sales and use.

[0003] However, the existing plastic folding and bundling devices need to adopt different structures for different types of plastic bags when in use. For example, for flat-mouth plastic bags, the bag body can be folded directly, while for plastic bags with handles, the handles need to be folded first, and then the bag body can be processed. This results in poor versatility of the device and high procurement costs for enterprises, which is not conducive to wider use. In addition, the folding steps are relatively complicated, and the handles need to be folded relative to the bag body. Once an error occurs, the folding will not be in place, affecting the subsequent bundling operation. The overall use effect of the device is not very ideal. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a plastic bag folding and bundling device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a plastic bag folding and bundling device, comprising a conveying platform and supporting legs, a conveying groove is provided at one side of the top of the conveying platform, a plurality of groups of rollers are connected to the conveying groove in a uniformly rotatable manner, an adjusting groove is provided at one side of the conveying groove at the top of the conveying platform, a moving block is slidably connected to the adjusting groove, one end of the moving block is located at the adjusting groove and a cylinder is fixedly installed therein, a moving frame is welded at the top of the moving block, a plurality of groups of moving arms are symmetrically slidably connected to the bottom surface of the moving frame, and a load-bearing bearing is welded at the bottom of the moving arm. The support frame is provided with a support, and an outer contact plate is slidably connected to the surface of the movable arm above the support frame, and a second electric push rod is fixedly installed between the top of the outer contact plate and the bottom surface of the movable frame, a shaping box is arranged above one side of the conveying groove, a fixed disk is welded at one end of the shaping box, and the fixed disk is welded to the surface of the conveying platform, a folding box is rotatably connected to the inside of the shaping box, a clamping groove is provided at the bottom position of one side surface of the folding box, a third electric push rod is fixedly installed at the top position of the clamping groove, an inner contact plate is installed at one end of the third electric push rod, and the inner contact plate is slidably connected to the inner wall of the clamping groove.

[0006] As a further description of the above technical solution:

[0007] One end of the folding box passes through one side of the fixed disk and is connected to the output end of the motor; a plurality of fixed blocks are installed around the inner surface of the shaping box; a moving rod is slidably connected to the inner position of the fixed block; a limiting wheel is installed at one end of the moving rod; a spring is fixedly installed at the other end of the moving rod at the inner position of the fixed block; an extrusion ring is provided on the outer periphery of the folding box; a plurality of first electric push rods are installed at one end of the extrusion ring; the other end of the first electric push rod is connected to the surface of the fixed disk.

[0008] As a further description of the above technical solution:

[0009] One end of the shaping box is welded with an extrusion frame on the other side of the top of the conveyor platform, a hydraulic rod is symmetrically installed at the bottom end of the top surface of the extrusion frame, a pressure plate is installed at the bottom of the hydraulic rod, an electric crawler is installed directly below the pressure plate at the top of the conveyor platform, one end of the electric crawler is symmetrically installed with a bundling rod on the surface of the extrusion frame, a rubber band is ringed around the outer periphery of the bundling rod, and a material guide plate is installed between the electric crawler and the shaping box.

[0010] As a further description of the above technical solution:

[0011] The conveying frame is an L-shaped structure.

[0012] As a further description of the above technical solution:

[0013] A plurality of groups of supporting legs are installed at the bottom of the conveying frame.

[0014] As a further description of the above technical solution:

[0015] The length of the moving frame is greater than the length of the clamping groove.

[0016] As a further description of the above technical solution:

[0017] The shaping box and the folding box are both rectangular structures.

[0018] As a further description of the above technical solution:

[0019] The size of the shaping box is larger than the rotation size of the folding box.

[0020] As a further description of the above technical solution:

[0021] A storage battery for energy supply is installed inside the folding box.

[0022] As a further description of the above technical solution:

[0023] The extrusion ring has a size larger than the folding box and smaller than the shaping box.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. In the present invention, a movable arm and a clamping groove are adopted. When folding the plastic bags, the personnel can adjust the position of the movable arm according to the type and size of the plastic bags, and then change the distance between the movable arms, so that the movable arms can be respectively located at the bag body of the plastic bag or the positions of multiple groups of handles, so as to facilitate the subsequent clamping of different types of plastic bags, thereby expanding the overall application range of the device. Moreover, after clamping the different plastic bags, the clamping end of the plastic bag will be inserted into the clamping groove. Since the length of the clamping groove is much larger than the length of the plastic bag, different types of plastic bags can be fixed, which is convenient for the subsequent rotation and folding operation, so that the device can fold different types of plastic bags, improve the use effect of the device, and has the advantages of strong versatility and multi-purpose of one machine.

[0026] 2. In the present invention, a folding box, a shaping box and a spring are used. The plastic bag can be inserted into the clamping groove on the surface of the folding box through the protruding position. At this time, the inner contact plate can be driven to move downward by the ejection of the third electric push rod inside the clamping groove, thereby realizing the clamping operation of the plastic bag. Then, the folding box can be driven to rotate by the rotation of the motor. At this time, the folding box can pull the plastic bag to rotate synchronously. Since a shaping box is provided on the outside of the folding box, the plastic bag will rotate along the space between the two. The folding box and the shaping box are both rectangular structures. Therefore, after the rotation is completed, the plastic bag becomes a rectangular structure, realizing the rotation and folding operation. During the rotation, the moving rod inside the shaping box and the deformation movement of the spring can continuously squeeze the plastic bag, thereby avoiding the loosening of the plastic bag during folding, ensuring the folding effect, and having the advantage of simple folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0028] Figure 1 This is a structural schematic diagram of a plastic bag folding and bundling device proposed by the present invention;

[0029] Figure 2 A schematic structural diagram of a movable arm and a movable frame of a plastic bag folding and bundling device proposed by the present invention;

[0030] Figure 3 A schematic diagram of the internal structure of a clamping groove of a plastic bag folding and bundling device proposed by the present invention;

[0031] Figure 4A schematic diagram of the structure of an extrusion ring of a plastic bag folding and bundling device proposed by the present invention;

[0032] Figure 5 A schematic diagram of the internal structure of a fixed block of a plastic bag folding and bundling device proposed by the present invention;

[0033] Figure 6 A schematic diagram of the structure of a fixed plate of a plastic bag folding and bundling device proposed by the present invention;

[0034] Figure 7 This is a structural schematic diagram of a material guide plate of a plastic bag folding and bundling device proposed by the present invention;

[0035] Figure 8 This is a schematic diagram of the internal structure of a shaping box of a plastic bag folding and bundling device proposed by the present invention.

[0036] Legend:

[0037] 1. Conveying platform; 2. Conveying trough; 3. Roller; 4. Adjusting trough; 5. Cylinder; 6. Moving arm; 7. Moving frame; 8. Moving block; 9. Fixed plate; 10. Motor; 11. Extrusion ring; 12. First electric push rod; 13. Shaping box; 14. Folding box; 15. Fixed block; 16. Clamping groove; 17. Extrusion frame; 18. Pressing plate; 19. Hydraulic rod; 20. Bundling rod; 21. Electric crawler; 22. Guide plate; 23. Support leg; 24. Bearing seat; 25. Second electric push rod; 26. Outer contact plate; 27. Inner contact plate; 28. Third electric push rod; 29. ​​Spring; 30. Moving rod; 31. Limiting wheel. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Embodiment 1, refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8A plastic bag folding and bundling device comprises a conveying platform 1 and supporting legs 23. A conveying trough 2 is provided at one side of the top of the conveying platform 1. A plurality of rollers 3 are connected to the conveying trough 2 in a uniformly rotating manner. An adjusting trough 4 is provided at one side of the conveying trough 2 at the top of the conveying platform 1. A moving block 8 is slidably connected to the adjusting trough 4. A cylinder 5 is fixedly installed at one end of the moving block 8 at the adjusting trough 4. A moving frame 7 is welded at the top of the moving block 8. A plurality of moving arms 6 are symmetrically slidably connected to the bottom surface of the moving frame 7. A bearing seat 24 is welded at the bottom of the moving arm 6. An external contact plate 26 is slidably connected to the surface of the moving arm 6 above the bearing seat 24. A second electric push rod 25 is fixedly installed between the top of the touch plate 26 and the bottom surface of the moving frame 7, a shaping box 13 is mounted above one side of the conveying groove 2, a fixed disk 9 is welded to one end of the shaping box 13, the fixed disk 9 is welded to the surface of the conveying platform 1, a folding box 14 is rotatably connected to the inside of the shaping box 13, a clamping groove 16 is provided at the bottom position of one side surface of the folding box 14, a third electric push rod 28 is fixedly installed at the top position inside the clamping groove 16, an inner contact plate 27 is installed at one end of the third electric push rod 28, the inner contact plate 27 is slidably connected to the inner wall of the clamping groove 16, and a threaded hole for the moving arm 6 to be installed and fastened by bolts is provided at the bottom position of the moving frame 7.

[0040] Example 2, refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 One end of the folding box 14 passes through one side of the fixed disk 9 and is connected to the output end of the motor 10. Several groups of fixed blocks 15 are installed around the inner surface of the shaping box 13. A moving rod 30 is slidably connected to the inner position of the fixed block 15. A limiting wheel 31 is installed at one end of the moving rod 30. The other end of the moving rod 30 is located at the inner position of the fixed block 15 and is fixedly installed with a spring 29. An extrusion ring 11 is provided on the outer periphery of the folding box 14. Several groups of first electric push rods 12 are installed at one end of the extrusion ring 11. The other end of the first electric push rod 12 is connected to the surface of the fixed disk 9. The setting of the limiting wheel 31 is to continuously abut against the surface position of the plastic bag under the deformation reset of the spring 29, thereby ensuring that the plastic bag will not become loose when folded, thereby ensuring the tight folding effect.

[0041] Example 3, refer to Figure 1 and Figure 7, one end of the shaping box 13 is welded with an extrusion frame 17 at the other side of the top of the conveyor platform 1, a hydraulic rod 19 is symmetrically installed at the bottom end of the top surface of the extrusion frame 17, and a pressing plate 18 is installed at the bottom of the hydraulic rod 19, and an electric crawler 21 is installed directly below the pressing plate 18 at the top of the conveyor platform 1, one end of the electric crawler 21 is located on the surface of the extrusion frame 17 and a bundling rod 20 is symmetrically installed, and a rubber band is sleeved on the outer periphery of the bundling rod 20, and a material guide plate 22 is installed between the electric crawler 21 and the shaping box 13. The bundling rod 20 is provided to facilitate personnel to support the rubber band, and then the folded plastic bag can be bundled through the supported rubber band. After the plastic bag moves to the middle position of the bundling rod 20, the bottom of the plastic bag will contact one end of the rubber band, and the other end can be located below the rubber band. Subsequent personnel only need to push out the rubber band to realize the bundling operation of the plastic bag, which is convenient and quick to operate.

[0042] Embodiment 4, referring to Figure 1 The conveyor frame is an L-shaped structure. The structure of the conveyor frame is set to enable the folding and bundling of plastic bags to be realized on the same structure, ensuring the continuity of the operation, while reducing the mutual interference between folding and bundling, and improving the use effect of the device.

[0043] Example 5, refer to Figure 1 A plurality of support legs 23 are installed at the bottom of the conveyor frame, and the support legs 23 can be used to fix the entire device, thereby enhancing the overall stability of use.

[0044] Example 6, refer to Figure 1 and Figure 2 The length of the movable frame 7 is greater than the length of the clamping groove 16. The length of the movable frame 7 is set to ensure that the plastic bag can be fully moved to the position of the clamping groove 16, thereby expanding the types of plastic bags that can be clamped by the device, thereby expanding the scope of application of the device and facilitating the folding operation of different types of plastic bags.

[0045] Embodiment 7, reference Figure 1 and Figure 8 The shaping box 13 and the folding box 14 are both rectangular structures. The rectangular structure is set to ensure that the plastic bags can be stacked after the rotation is completed, thereby realizing the rotation and folding operation of the plastic bags, which is convenient for subsequent extrusion and shaping.

[0046] Embodiment 8, refer to Figure 1 and Figure 8 The size of the shaping box 13 is larger than the rotation size of the folding box 14. The size of the shaping box 13 is set to ensure that it does not affect the rotation of the folding box 14, thereby ensuring that the plastic bag can move normally when it is rotated and folded.

[0047] Embodiment 9, refer to Figure 1 A battery for power supply is installed inside the folding box 14. The battery is provided to provide energy for the operation of the third electric push rod 28. Similarly, a space can be opened inside the folding box 14 for the installation of a controller to facilitate the control of the use of the third electric push rod 28. Since the controllers are of various types and mature application technologies in actual production and life, they will not be described in detail. Personnel can choose the corresponding model according to their needs.

[0048] Embodiment 10, referring to Figure 1 , Figure 4 and Figure 8 The size of the extrusion ring 11 is larger than the size of the folding box 14 and smaller than the size of the shaping box 13. The size of the extrusion ring 11 is set to ensure that it can move smoothly outside the folding box 14, thereby achieving the purpose of pushing out the folded plastic bag, and at the same time will not contact with the shaping box 13 to cause blockage, ensuring the normal use and operation of the structure.

[0049] Working principle: In actual use, the cut plastic bags can be conveyed through the conveyor platform 1, which is convenient for the subsequent folding and bundling operations of different types of plastic bags. When conveying different types of plastic bags, the position of the movable arm 6 can be moved first. After the spacing of the movable arm 6 is adjusted, it can be fastened to the bottom position of the movable arm 6 by bolts, which is convenient for subsequent use. For example, when it comes to plastics without handles, the spacing of the movable arms 6 can be relatively increased to adapt to the spacing of the bag body of the plastic bag. When it comes to plastic bags with handles, the spacing of the movable arms 6 needs to be shortened accordingly, so that the movable arms 6 on both sides can be aligned with the position of the handles, which is convenient for subsequent gripping. After all adjustments are completed, the contraction of the cylinder 5 can drive the moving frame 7 to move in the direction of the plastic bag. At this time, the bearing seat 24 at the bottom of the moving arm 6 can be moved to the bottom position of the plastic bag through the slope of the side, so that part of the surface of the plastic bag is between the bearing seat 24 and the outer contact plate 26. Then, the outer contact plate 26 can fix the plastic bag by the ejection of the second electric push rod 25. Then, the moving frame 7 can be driven to move toward the position of the folding box 14 by the ejection of the cylinder 5. Since the length of the moving frame 7 is greater than the length of the folding box 14, the plastic bag clamped by the moving arm 6 at the bottom of the moving frame 7 can be smoothly moved to any position of the folding box 14, which is convenient for subsequent clamping operations, and the moving arm 6 can be When the plastic bag is clamped, excessive clamping is adopted, that is, one end of the plastic bag will protrude from the surface of the supporting seat 24, so that when the subsequent moving frame 7 moves to the position of the folding box 14, the plastic bag can be inserted into the clamping groove 16 on the surface of the folding box 14 through the protruding position. At this time, the ejection of the third electric push rod 28 inside the clamping groove 16 can drive the inner contact plate 27 to move downward, thereby realizing the clamping operation of the plastic bag, and then the rotation of the motor 10 can drive the folding box 14 to rotate. At this time, the folding box 14 can pull the plastic bag to rotate synchronously. Since the shaping box 13 is provided on the outside of the folding box 14, the plastic bag will rotate along the space between the two, and the folding box 14 and the shaping box 13 are both rectangular. Therefore, after the rotation is completed, the plastic bag becomes a rectangular structure, realizing the rotation and folding operation, and during the rotation, the moving rod 30 inside the shaping box 13 and the deformation movement of the spring 29 can continuously apply pressure to the plastic bag, thereby preventing the plastic bag from loosening during folding and ensuring the folding effect. Then, after the folding is completed, the squeezed corners of the plastic bag can be released by resetting the third electric push rod 28. At this time, the first electric push rod 12 inside the shaping box 13 can be pushed out to drive the extrusion ring 11 to move along the outer periphery of the folding box 14. At this time, the extrusion ring 11 can push out the folded plastic bag, and the pushed out plastic bag will slide along the guide plate 22 to the top of the electric crawler 21.The operation of the electric crawler 21 can drive the plastic bag to move. At this time, the movement of the hydraulic rod 19 and the pressure plate 18 above the electric crawler 21 can squeeze the folded plastic bag to achieve secondary shaping, avoiding deformation and expansion that lead to the recovery of the plastic bag. At the same time, with the continuous transportation of the electric crawler 21, the plastic bag will move to the position between the multiple groups of strapping rods 20. Since the strapping rods 20 are provided with rubber bands on the periphery, the plastic bag can be tied with the rubber bands when it moves to the position between them, so as to facilitate the subsequent personnel to take it. When the personnel take out the plastic bag, they need to put the rubber band on the surface of the strapping rod 20 again, which is convenient for the subsequent strapping operation of the plastic bag. The overall device has the advantages of simple folding, strong versatility, and one machine with multiple uses.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic bag folding and bundling device, comprising a conveying platform (1) and supporting legs (23), characterized in that: A conveying groove (2) is provided at one side of the top of the conveying platform (1), and a plurality of rollers (3) are connected to the inner position of the conveying groove (2) in a uniformly rotatable manner. An adjusting groove (4) is provided at one side of the conveying groove (2) at the top of the conveying platform (1), and a moving block (8) is slidably connected to the inner position of the adjusting groove (4). A cylinder (5) is fixedly installed at one end of the moving block (8) at the inner position of the adjusting groove (4). A moving frame (7) is welded at the top of the moving block (8), and a plurality of moving arms (6) are symmetrically slidably connected to the bottom surface of the moving frame (7). A bearing seat (24) is welded at the bottom of the moving arm (6), and an outer contact plate (24) is slidably connected to the surface of the moving arm (6) above the bearing seat (24). 6), a second electric push rod (25) is fixedly installed between the top of the outer contact plate (26) and the bottom surface of the movable frame (7), a shaping box (13) is mounted above one side of the conveying groove (2), a fixed plate (9) is welded to one end of the shaping box (13), and the fixed plate (9) is welded to the surface of the conveying platform (1), a folding box (14) is rotatably connected to the inside of the shaping box (13), a clamping groove (16) is provided at the bottom position of one side surface of the folding box (14), a third electric push rod (28) is fixedly installed at the top position inside the clamping groove (16), an inner contact plate (27) is installed at one end of the third electric push rod (28), and the inner contact plate (27) is slidably connected to the inner wall of the clamping groove (16).

2. A plastic bag folding and bundling device according to claim 1, characterized in that: One end of the folding box (14) passes through one side of the fixed disk (9) and is connected to the output end of the motor (10); a plurality of fixed blocks (15) are installed around the inner surface of the shaping box (13); a moving rod (30) is slidably connected to the inner position of the fixed block (15); a limiting wheel (31) is installed at one end of the moving rod (30); a spring (29) is fixedly installed at the other end of the moving rod (30) at the inner position of the fixed block (15); an extrusion ring (11) is provided on the outer periphery of the folding box (14); a plurality of first electric push rods (12) are installed at one end of the extrusion ring (11); the other end of the first electric push rod (12) is connected to the surface of the fixed disk (9).

3. A plastic bag folding and bundling device according to claim 1, characterized in that: One end of the shaping box (13) is welded with an extrusion frame (17) at the other side of the top of the conveying platform (1), a hydraulic rod (19) is symmetrically installed at the bottom end of the top surface of the extrusion frame (17), a pressure plate (18) is installed at the bottom of the hydraulic rod (19), an electric crawler (21) is installed directly below the pressure plate (18) at the top of the conveying platform (1), one end of the electric crawler (21) is symmetrically installed with a bundling rod (20) at the surface of the extrusion frame (17), a rubber band is sleeved around the outer periphery of the bundling rod (20), and a material guide plate (22) is installed between the electric crawler (21) and the shaping box (13).

4. A plastic bag folding and bundling device according to claim 1, characterized in that: The conveying frame is an L-shaped structure.

5. The plastic bag folding and bundling device according to claim 1, characterized in that: A plurality of groups of supporting legs (23) are installed at the bottom of the conveying frame.

6. A plastic bag folding and bundling device according to claim 1, characterized in that: The length of the movable frame (7) is greater than the length of the clamping groove (16).

7. A plastic bag folding and bundling device according to claim 1, characterized in that: The shaping box (13) and the folding box (14) are both rectangular structures.

8. The plastic bag folding and bundling device according to claim 1, characterized in that: The size of the shaping box (13) is larger than the rotational size of the folding box (14).

9. The plastic bag folding and bundling device according to claim 1, characterized in that: A storage battery for power supply is installed inside the folding box (14).

10. A plastic bag folding and bundling device according to claim 2, characterized in that: The size of the extrusion ring (11) is larger than the size of the folding box (14) and smaller than the size of the shaping box (13).

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