Fixed-distance fusion cutting device for plastic packaging bag production

Abstract

The utility model discloses a fixed-distance melting and cutting device for plastic packaging bag production, which comprises a bottom plate, a placing mechanism for placing a plastic packaging bag to be melted and cut is arranged above the bottom plate, and a conveying mechanism for conveying the plastic packaging bag to be melted and cut is arranged above the bottom plate. A transferring mechanism used for transferring the plastic packaging bags taken out by the containing mechanism to the conveying mechanism is arranged above the conveying mechanism. Compared with an existing method that the material packaging bag needs to be disassembled again and moved to the needed position to be assembled again, the distance fixing mechanism is arranged to conduct distance fixing fusion cutting on the material packaging bag. And when plastic packaging bags with different lengths are produced, the fixed-distance fusion cutting of the plastic packaging bags can be intelligently adjusted. And the replacement time is saved. And waste materials generated when the plastic packaging bags are melt-cut due to the fact that manual replacement is not in place are avoided, the output of the waste materials is effectively reduced, and the production efficiency and the equipment productivity are improved.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology, specifically to a fixed-distance melting and cutting device for the production of plastic packaging bags. Background Technology

[0002] The fixed-distance melting and cutting device for plastic packaging bag production is a specialized piece of equipment used in the continuous production process of plastic film or packaging bags to achieve integrated fixed-distance cutting and heat-sealing. Its core function is to precisely cut continuous rolls of material to a preset length using heat-sealing technology, and simultaneously complete edge sealing to prevent material from fraying.

[0003] Referring to the existing Chinese patent with publication number CN217319517U, a fixed-distance melting and cutting device for the production of plastic packaging bags is disclosed, which relates to the field of plastic bag production technology. The fixed-distance melting and cutting device for the production of plastic packaging bags includes a connecting plate connected to the telescopic end of the electric telescopic rod, a melting and cutting plate installed on the lower surface of the connecting plate, second mounting frames symmetrically arranged on both sides of the third mounting frame on the upper surface of the workbench, a flattening shaft arranged on the lower surface of the second mounting frame above the conveyor belt, a first mounting frame arranged on one side of the second mounting frame on the upper surface of the workbench, and a mounting block arranged on the lower surface of the first mounting frame above the conveyor belt.

[0004] The aforementioned spaced melting and cutting device for plastic packaging bag production utilizes a threaded connection between an installation rod and a fixing hole, and embeds the top of a limiting rod into the limiting groove to install a second mounting frame. A flattening shaft is installed inside the second mounting frame, which helps to flatten the packaging bag during transport, thus preventing wrinkles and ensuring proper melting and cutting. However, this device still has some drawbacks. For example, spaced melting and cutting requires disassembly and reassembly, which is inconvenient. Furthermore, negligence during manual installation can lead to waste, hindering production efficiency and equipment capacity. Therefore, we need to propose a turbine flow meter with shock absorption capabilities. Utility Model Content

[0005] The purpose of this invention is to provide a fixed-distance melting and cutting device for the production of plastic packaging bags, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixed-distance melting and cutting device for producing plastic packaging bags, comprising a base plate, a placement mechanism for placing plastic packaging bags to be melted and cut is provided above the base plate, a transmission mechanism for transporting the plastic packaging bags to be melted and cut is provided above the base plate, and a transfer mechanism for transferring plastic packaging bags taken out by the placement mechanism to the transmission mechanism is provided above the transmission mechanism.

[0007] Above the conveying mechanism is a rolling mechanism for rolling and flattening the plastic packaging bag and sealing the melt-cut plastic packaging bag. Above the conveying mechanism is a melting and cutting blade for melting and cutting the plastic packaging bag. Above the conveying mechanism is a fixed-distance melting and cutting mechanism for melting and cutting the plastic packaging bag at a fixed distance.

[0008] Preferably, the placement mechanism includes a support rod, which is disposed above the base plate. An installation rod is disposed above the support rod, and a roll of plastic packaging bag is slidably mounted on the surface of the installation rod. A cover plate is disposed above the installation rod and corresponds to the top of the support rod. A connecting mechanism is disposed on one side of the support rod.

[0009] Preferably, the connecting mechanism includes a metal hinge, which is disposed on one side of the support rod. A first mounting ring is disposed on the side of the support rod away from the metal hinge. A second mounting ring is disposed on one side of the cover plate and is adapted to the first mounting ring. A screw is disposed on the top of the first mounting ring. The screw is inserted into the interior of the first mounting ring and the second mounting ring. A nut is threaded onto the surface of the screw and is located below the second mounting ring.

[0010] Preferably, the transmission mechanism includes a support leg, which is disposed above the base plate. A conveyor is disposed on the top of the support leg. The transmission end of the conveyor is coated with a heat-insulating coating. Baffles are disposed on both sides of the conveyor.

[0011] Preferably, the transfer mechanism includes a first extrusion rod disposed above the conveyor. A first mounting plate is provided on the side of the baffle away from the conveyor. A first bearing is disposed inside the first mounting plate, and a second bearing is disposed inside the first mounting plate and located above the first bearing. Both ends of the first extrusion rod are inserted into the inner wall of the first bearing. A second extrusion rod is disposed above the first extrusion rod, and both ends of the second extrusion rod are inserted into the inner wall of the second bearing. A first belt reel is disposed at one end of the first extrusion rod, and a second belt reel is disposed at one end of the second extrusion rod, corresponding to the first belt reel. A belt is fitted onto the surfaces of the first and second belt reels. A second mounting plate is disposed on the side of the first mounting plate away from the baffle. A first motor is disposed above the second mounting plate, and the output end of the first motor is connected to the first belt reel via a coupling. A plastic packaging bag body is disposed between the first and second extrusion rods.

[0012] Preferably, the rolling mechanism includes a rolling rod, which is disposed above the conveyor. A first mounting block is provided on the side of the baffle away from the conveyor. Both ends of the rolling rod are inserted into the interior of the first mounting block. A second mounting block is provided on the side of the first mounting block away from the baffle. A second motor is disposed above the second mounting block. The output end of the second motor is connected to one end of the rolling rod through a coupling.

[0013] Preferably, the distance fixing mechanism includes a top plate, which is disposed above the conveyor. A bracket is provided on the side of the baffle away from the conveyor. The top of the bracket is installed with the bottom of the top plate. An electric slide rail is provided at the bottom of the top plate. A placement plate is provided at the moving end of the electric slide rail. A servo electric cylinder is provided at the bottom of the placement plate. The output end of the servo electric cylinder is installed with the top of the melting and cutting blade.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a fixed-distance melting and cutting mechanism to precisely melt and cut plastic packaging bags at a fixed distance. Compared to existing methods that require disassembly, repositioning, and reassembly, this method is faster and more convenient. When producing plastic packaging bags of varying lengths, the fixed-distance melting and cutting can be intelligently adjusted, saving replacement time. It also avoids waste generated during the melting and cutting of plastic packaging bags due to incomplete manual replacement, effectively reducing waste production and improving production efficiency and equipment capacity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the servo electric cylinder of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the rolling bar of this utility model;

[0020] Figure 5 This is the left view of the present invention;

[0021] Figure 6 This is a cross-sectional view of the second extrusion rod of this utility model;

[0022] Figure 7 This utility model Figure 6 Enlarged view of point A;

[0023] Figure 8 This utility model Figure 6 Enlarged view of point B.

[0024] In the diagram: 1. Base plate; 2. Melting and cutting blade; 3. Support rod; 4. Mounting rod; 5. Plastic packaging bag roll; 6. Cover plate; 7. Metal hinge; 8. First mounting ring; 9. Second mounting ring; 10. Screw; 11. Nut; 12. Support leg; 13. Conveyor; 14. Baffle; 15. First extrusion rod; 16. First mounting plate; 17. First bearing; 18. Second bearing; 19. Second extrusion rod; 20. First pulley; 21. Second pulley; 22. Belt; 23. Second mounting plate; 24. First motor; 25. Plastic packaging bag body; 26. Rolling rod; 27. First mounting block; 28. Second mounting block; 29. ​​Second motor; 30. Top plate; 31. Bracket; 32. Electric slide rail; 33. Placement plate; 34. Servo electric cylinder; 35. Heat insulation coating. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-8 This utility model provides a technical solution: a fixed-distance melting and cutting device for producing plastic packaging bags, including a base plate 1, a placement mechanism for placing plastic packaging bags to be melted and cut is provided above the base plate 1; the placement mechanism includes a support rod 3, the support rod 3 is provided above the base plate 1, an installation rod 4 is provided above the support rod 3, a plastic packaging bag roll 5 is slidably installed on the surface of the installation rod 4, a cover plate 6 is provided above the installation rod 4 and corresponds to the top of the support rod 3, and a connecting mechanism is provided on one side of the support rod 3.

[0027] The connecting mechanism includes a metal hinge 7, which is located on one side of the support rod 3. A first mounting ring 8 is located on the side of the support rod 3 away from the metal hinge 7. A second mounting ring 9 is located on one side of the cover plate 6 and is adapted to the first mounting ring 8. A screw 10 is located at the top of the first mounting ring 8, and the screw 10 is inserted into the interior of the first mounting ring 8 and the second mounting ring 9. A nut 11 is threaded onto the surface of the screw 10 and is located below the second mounting ring 9. When it is necessary to replace the plastic packaging bag roll 5, use a tool to remove the nut 11 from the screw 10, pull out the screw 10, open the cover plate 6 in the opening and closing direction of the metal hinge 7, remove the mounting rod 4, fit a new plastic packaging bag roll 5 onto the surface of the mounting rod 4, and then reverse the installation and removal process.

[0028] A conveying mechanism for transporting plastic packaging bags to be melted and cut is provided above the base plate 1. The conveying mechanism includes support legs 12, which are positioned above the base plate 1. A conveyor 13 is mounted on top of the support legs 12. The conveying end of the conveyor 13 is coated with a heat-insulating coating 35, and baffles 14 are provided on both sides of the conveyor 13. The heat-insulating coating 35 is to prevent the melting and cutting blade 2 from damaging the conveyor 13 and to prevent the melted and cut plastic packaging bag body 25 from sticking to the conveying end of the conveyor 13.

[0029] Above the conveying mechanism is a placement device for transferring plastic packaging bags removed by the mechanism to the conveying mechanism; the conveying mechanism includes a first extrusion rod 15, which is positioned above the conveyor 13. A first mounting plate 16 is provided on the side of the baffle 14 away from the conveyor 13. A first bearing 17 is disposed inside the first mounting plate 16, and a second bearing 18 is disposed inside the first mounting plate 16 and positioned above the first bearing 17. Both ends of the first extrusion rod 15 are inserted into the inner wall of the first bearing 17. A second extrusion rod 19 is positioned above the first extrusion rod 15. Both ends of the rod 19 are inserted into the inner wall of the second bearing 18. One end of the first extrusion rod 15 is provided with a first belt reel 20, and one end of the second extrusion rod 19 is provided with a second belt reel 21 corresponding to the first belt reel 20. A belt 22 is sleeved on the surface of the first belt reel 20 and the second belt reel 21. A second mounting plate 23 is provided on the side of the first mounting plate 16 away from the baffle 14. A first motor 24 is provided above the second mounting plate 23. The output end of the first motor 24 is connected to the first belt reel 20 through a coupling. A plastic packaging bag body 25 is provided between the first extrusion rod 15 and the second extrusion rod 19.

[0030] In the process of use, the first motor 24 is started, which drives the first reel 20. The first reel 20 and the second reel 21 are linked by the belt 22, which drives the first extrusion rod 15 and the second extrusion rod 19 to rotate. The plastic packaging bag body 25 is placed between the first extrusion rod 15 and the second extrusion rod 19 to realize the transfer of the plastic packaging bag body 25.

[0031] Above the conveyor mechanism is a rolling mechanism for flattening and sealing the melt-cut plastic packaging bags. The rolling mechanism includes a rolling rod 26 positioned above the conveyor 13. A first mounting block 27 is provided on the side of the baffle 14 away from the conveyor 13. Both ends of the rolling rod 26 are inserted into the first mounting blocks 27. A second mounting block 28 is provided on the side of the first mounting block 27 away from the baffle 14. A second motor 29 is positioned above the second mounting block 28, and its output end is connected to one end of the rolling rod 26 via a coupling. During operation, the second motor 29 is activated to rotate the rolling rod 26, thus rolling the plastic packaging bag body 25. The equipment has three sets of rolling mechanisms. Figure 1The diagram shows, from left to right, the first rolling mechanism, the second rolling mechanism, and the third rolling mechanism. The function of the first rolling mechanism is to flatten the plastic packaging bag body 25. Its rotation speed is relatively slower than that of the conveyor 13. The second and third rolling mechanisms are used for sealing and rolling after the plastic packaging bag body 25 has been melted and cut by the melting and cutting blade 2.

[0032] Above the conveyor mechanism is a melting and cutting blade 2 for melting and cutting plastic packaging bags. Above the conveyor mechanism is a distance-fixed melting and cutting mechanism for melting and cutting plastic packaging bags at a fixed distance. The distance-fixed mechanism includes a top plate 30, which is positioned above the conveyor 13. A bracket 31 is mounted on the side of the baffle 14 away from the conveyor 13. The top of the bracket 31 is installed at the bottom of the top plate 30. An electric slide rail 32 is mounted at the bottom of the top plate 30. A placement plate 33 is mounted at the moving end of the electric slide rail 32. A servo cylinder 34 is mounted at the bottom of the placement plate 33. The output end of the servo cylinder 34 is mounted at the top of the melting and cutting blade 2. When the size of the plastic packaging bag body 25 needs to be adjusted, only the moving end of the electric slide rail 32 needs to be adjusted. During melting and cutting, the output end of the servo cylinder 34 extends and drives the melting and cutting blade 2 to contact the plastic packaging bag body 25 for melting and cutting.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic packaging bag production fixed distance melting cutting device, comprising a base plate (1), characterized in that: Above the base plate (1) is a placement mechanism for placing plastic packaging bags to be melted and cut, and above the base plate (1) is a transfer mechanism for transporting plastic packaging bags to be melted and cut. Above the transfer mechanism is a transfer mechanism for transferring plastic packaging bags taken out by the placement mechanism to the transfer mechanism. Above the transmission mechanism is a rolling mechanism for rolling and flattening plastic packaging bags and sealing the melt-cut plastic packaging bags. Above the transmission mechanism is a melting and cutting blade (2) for melting and cutting plastic packaging bags. Above the transmission mechanism is a fixed-distance melting and cutting mechanism for plastic packaging bags.

2. The fixed-distance melting and cutting device for producing plastic packaging bags according to claim 1, characterized in that: The placement mechanism includes a support rod (3), which is positioned above the base plate (1). An installation rod (4) is positioned above the support rod (3). A plastic packaging bag roll (5) is slidably mounted on the surface of the installation rod (4). A cover plate (6) is positioned above the installation rod (4) and corresponds to the top of the support rod (3). A connecting mechanism is positioned on one side of the support rod (3).

3. The fixed-distance melting and cutting device for producing plastic packaging bags according to claim 2, characterized in that: The connecting mechanism includes a metal hinge (7), which is disposed on one side of the support rod (3). A first mounting ring (8) is disposed on the side of the support rod (3) away from the metal hinge (7). A second mounting ring (9) is disposed on one side of the cover plate (6) and is adapted to the first mounting ring (8). A screw (10) is disposed on the top of the first mounting ring (8). The screw (10) is inserted into the interior of the first mounting ring (8) and the second mounting ring (9). A nut (11) is threaded onto the surface of the screw (10) and is located below the second mounting ring (9).

4. The fixed-distance melting and cutting device for producing plastic packaging bags according to claim 3, characterized in that: The transmission mechanism includes a support leg (12) which is positioned above the base plate (1). A conveyor (13) is mounted on the top of the support leg (12). The transmission end of the conveyor (13) is coated with a heat-insulating coating (35). Baffles (14) are mounted on both sides of the conveyor (13).

5. The fixed-distance melting and cutting device for producing plastic packaging bags according to claim 4, characterized in that: The transfer mechanism includes a first pressing rod (15) disposed above the conveyor (13). A first mounting plate (16) is provided on the side of the baffle (14) away from the conveyor (13). A first bearing (17) is disposed inside the first mounting plate (16). A second bearing (18) is disposed inside the first mounting plate (16) and located above the first bearing (17). Both ends of the first pressing rod (15) are inserted into the inner wall of the first bearing (17). A second pressing rod (19) is disposed above the first pressing rod (15), and both ends of the second pressing rod (19) are inserted into the inner wall of the second bearing (18). The first extrusion rod (15) has a first reel (20) at one end, and the second extrusion rod (19) has a second reel (21) at one end, which corresponds to the first reel (20). A belt (22) is sleeved on the surface of the first reel (20) and the second reel (21). A second mounting plate (23) is provided on the side of the first mounting plate (16) away from the baffle (14). A first motor (24) is provided above the second mounting plate (23). The output end of the first motor (24) is connected to the first reel (20) through a coupling. A plastic packaging bag body (25) is provided between the first extrusion rod (15) and the second extrusion rod (19).

6. The fixed-distance melting and cutting device for producing plastic packaging bags according to claim 5, characterized in that: The rolling mechanism includes a rolling rod (26), which is positioned above the conveyor (13). A first mounting block (27) is provided on the side of the baffle (14) away from the conveyor (13). Both ends of the rolling rod (26) are inserted into the interior of the first mounting block (27). A second mounting block (28) is provided on the side of the first mounting block (27) away from the baffle (14). A second motor (29) is positioned above the second mounting block (28). The output end of the second motor (29) is connected to one end of the rolling rod (26) via a coupling.

7. The fixed-distance melting and cutting device for producing plastic packaging bags according to claim 6, characterized in that: The distance fixing mechanism includes a top plate (30) which is positioned above the conveyor (13). A bracket (31) is provided on the side of the baffle (14) away from the conveyor (13). The top of the bracket (31) is installed at the bottom of the top plate (30). An electric slide rail (32) is provided at the bottom of the top plate (30). A placement plate (33) is provided at the moving end of the electric slide rail (32). A servo electric cylinder (34) is provided at the bottom of the placement plate (33). The output end of the servo electric cylinder (34) is installed at the top of the melting and cutting blade (2).

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