Composite die-cutting machine for paper tableware

Abstract

The utility model discloses a composite die-cutting machine for paper tableware, which comprises a blanking mechanism for blanking and forming a plurality of layers of pressed and formed paper strips and a waste material winding mechanism for winding waste materials, and further comprises a rack, a plurality of groups of discharging mechanisms for unwinding the paper strips are sequentially arranged on the rack along the length direction, and a plurality of groups of discharging mechanisms are sequentially arranged on the rack along the length direction. In the length direction of the rack, the paper strips discharged by the multiple sets of discharging mechanisms are stacked one by one, and the rack is further sequentially provided with multiple sets of compounding mechanisms used for pressing the paper strips stacked every time together in the length direction. The compounding mechanism comprises a mounting frame, a gluing assembly which is arranged on the mounting frame and is used for gluing the paper strip material on the lower layer, and a heating and pressing assembly which is used for pressing the glued paper strip material on the paper strip material on the upper layer; and the laminated multi-layer paper strip material is blanked by the blanking mechanism and then is wound by the waste material winding mechanism. According to the utility model, the production efficiency can be obviously improved, and the stability of product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of paper tableware production equipment, and in particular to a composite die-cutting machine for paper tableware. Background Technology

[0002] Tableware refers to non-edible utensils that come into direct contact with food during meals. They are used to assist in the distribution or consumption of food. Currently, there are many disposable plastic tableware items on the market, which are not good for the environment. There are also some handheld tableware items (such as knives, forks, and spoons) made of biodegradable materials. Among them, paper tableware has the advantage of being environmentally friendly and is widely used.

[0003] Currently, the production of paper tableware mainly relies on pulp molding technology. In the actual production process, the dispersion of pulp requires a large amount of water resources, and the large amount of wastewater generated in this process has caused environmental pollution.

[0004] To address the aforementioned problems, Chinese invention patent application number CN202110785354.1 discloses a paper tableware processing equipment, which includes a forming device for processing paper strips into paper tableware, a setting device for heating and setting the paper tableware, and a film-coating device for coating the paper tableware. The forming device includes a feeding mechanism for releasing multiple layers of paper strips, a gluing mechanism for applying glue to the paper strips, a pressing mechanism for pressing the glued multiple layers of paper strips into shape, and a punching mechanism for punching the pressed multiple layers of paper strips into shape. The feeding mechanism, gluing mechanism, pressing mechanism, and punching mechanism are arranged end-to-end. Multiple layers of paper strips are simultaneously glued, stacked together, pressed, punched, and then heated and set. However, because this design involves stacking and pressing multiple layers of paper strips together, the glue on the inner layers of paper strips does not dry easily during the heat setting process, which can easily lead to wrinkles, peeling, and other problems. Usually, the drying time needs to be increased to ensure that the glue is completely dry, resulting in low production efficiency and unstable product quality. Utility Model Content

[0005] The purpose of this invention is to provide a composite die-cutting machine for paper tableware, which can significantly improve production efficiency and ensure the stability of product quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper tableware composite die-cutting machine, comprising a punching mechanism for punching and forming multi-layer paper strips pressed together, and a waste material winding mechanism for winding up waste material, and a frame, wherein multiple sets of feeding mechanisms for feeding paper strips are sequentially arranged along the length direction of the frame, and the paper strips fed out by the multiple feeding mechanisms are stacked one by one along the length direction of the frame, and multiple sets of composite mechanisms for pressing the stacked paper strips together are also sequentially arranged along the length direction of the frame, the composite mechanism comprising a mounting frame, a gluing component disposed on the mounting frame for applying glue to the lower layer of paper strips, and a heating pressing component for pressing the glued lower layer of paper strips onto the upper layer of paper strips, wherein the multi-layer paper strips after pressing are punched by the punching mechanism and then wound up by the waste material winding mechanism.

[0007] By adopting the above technical solution, this design applies glue, presses, and heats the paper strips layer by layer, with the pressing and heating occurring simultaneously. Each layer is heated and dried during pressing, thus avoiding the problem of the middle layer glue being difficult to dry when multiple layers of paper strips are glued and pressed together. Each layer of glue is guaranteed to be completely dry without the need for subsequent drying, which not only significantly improves production efficiency but also ensures the stability of product quality.

[0008] The present invention is further configured such that the gluing assembly includes a glue tank, a first gluing roller and a second gluing roller, the first gluing roller and the second gluing roller are rotatably mounted on the mounting frame from top to bottom, and the outer circular surfaces of the first gluing roller and the second gluing roller are in close contact, the paper strip to be glued passes through the space between the first gluing roller and the second gluing roller, the glue tank is located below the second gluing roller, and part of the second gluing roller extends into the glue tank.

[0009] By adopting the above technical solution, the second gluing roller extends into the glue tank to adhere the glue. When it rolls, it presses the glue onto the paper strip, thereby achieving the gluing of the paper strip.

[0010] The present invention is further configured such that each side of the mounting frame is provided with a first height adjustment structure connected to both ends of the first gluing roller. The first height adjustment structure includes a first cylinder and a bearing seat. The mounting frame has a first sliding groove opened vertically on both sides. A gluing cylinder seat is installed at the upper end of the first sliding groove. The first cylinder is installed on the corresponding gluing cylinder seat. The extended end of the first cylinder is connected to the bearing seat for driving the bearing seat to rise and fall within the first sliding groove. A first bearing is installed on the bearing seat. Both ends of the first gluing roller are respectively rotatably engaged with the corresponding first bearing.

[0011] By adopting the above technical solution, the pre-tightening force between the first and second gluing rollers can be adjusted, thereby achieving effective compression of paper strips with different layers.

[0012] The present invention is further configured such that a first guide roller for guiding paper strips is provided on the mounting frame at a position corresponding to both sides of the first gluing roller.

[0013] By adopting the above technical solution, the paper strips that need to be glued can be guided and accurately guided between the first glue roller and the second glue roller for glue application.

[0014] The present invention is further provided in that the bottom of the mounting frame is provided with a lifting cylinder, the extended end of the lifting cylinder is connected to the glue tank, the lower end of the glue tank is provided with multiple guide shafts, and the bottom of the mounting frame is provided with multiple linear bearings that cooperate with the guide shafts.

[0015] By adopting the above technical solution, the height of the glue tank can be adjusted by the second cylinder, which controls the relative entry or exit of the second glue roller into the glue tank and the depth of its relative immersion in the glue tank. This facilitates raising the height of the glue tank when the glue level drops, ensuring that the second glue roller is always immersed in the glue. It also facilitates lowering the height of the glue tank to replenish the glue when the glue in the tank is used up.

[0016] The present invention is further configured such that the heating and pressing assembly includes a drive motor and a conductive ring respectively disposed on both sides of the mounting frame, and a rubber-coated pressure roller and a heating roller rotatably disposed on the mounting frame from top to bottom. The outer circular surface of the rubber-coated pressure roller and the outer circular surface of the heating roller are tightly fitted together. Multiple layers of paper strips pass through the rubber-coated pressure roller and the heating roller. The heating roller has multiple axially extending mounting holes distributed in a circumferential array. Heating tubes are inserted into the mounting holes. The conductive ring is sleeved on one end of the heating roller and electrically connected to the heating tube through a wire. The drive motor is connected to the other end of the heating roller to drive the heating roller to rotate.

[0017] By adopting the above technical solution, it is possible to press multiple layers of paper strips together while heating them to dry the glue, which not only reduces the size of the equipment but also greatly improves the processing efficiency.

[0018] The present invention is further configured such that each end of the heating roller is connected by screws to a plurality of baffles for pressing the heating tube into the corresponding mounting holes.

[0019] By adopting the above technical solution, the heating element can be fixedly installed. Its installation structure is simple and reliable, and it is very convenient to disassemble and assemble.

[0020] The present invention is further configured such that a second height adjustment structure is provided on each side of the mounting frame and connected to both ends of the rubber-coated pressure roller. The second height adjustment structure includes a second cylinder and a slider seat. A second slide groove is provided on both sides of the mounting frame along the vertical direction. A tableting cylinder seat is installed at the upper end of the second slide groove. The second cylinder is installed on the corresponding tableting cylinder seat. The extended end of the second cylinder is connected to the slider seat for driving the slider seat to rise and fall in the second slide groove. A second bearing is installed on the slider seat. Both ends of the rubber-coated pressure roller are respectively rotatably engaged with the corresponding second bearing.

[0021] By adopting the above technical solution, the pre-tightening force between the coating roller and the heating roller can be adjusted, thereby enabling effective pressing of paper strips with different layers.

[0022] The present invention is further configured such that a guide roller fixing seat is symmetrically arranged on both sides of the slider seat, and a second guide roller is connected to each side of the two slider seats through the corresponding two guide roller fixing seats.

[0023] By adopting the above technical solution, multi-layer paper strips can be guided and accurately introduced between the coating roller and the heating roller for heating and pressing. At the same time, during separation, the multi-layer paper strips can also be driven upward, preventing them from being constantly pressed against the heating roller and damaging the multi-layer paper strips.

[0024] The present invention is further configured such that the feeding mechanism includes a feeding shaft and a magnetic powder brake, wherein the magnetic powder brake is connected to the feeding shaft via a transmission component.

[0025] By adopting the above technical solution, automatic feeding of paper strips can be achieved. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a first view of the structure of the heating and pressing assembly of this utility model;

[0028] Figure 3 This is a second view of the structure of the heating and pressing assembly of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the heating roller of this utility model;

[0030] Figure 5 This is a schematic diagram of the feeding mechanism of this utility model.

[0031] In the diagram: 1. Punching mechanism; 2. Waste material winding mechanism; 3. Frame; 4. Feeding mechanism; 5. Laminating mechanism; 6. Mounting frame; 7. Gluing assembly; 8. Heating and pressing assembly; 9. Glue tank; 10. First glue roller; 11. Second glue roller; 12. First height adjustment structure; 13. First cylinder; 14. Bearing seat; 15. First chute; 16. Gluing cylinder seat; 17. First bearing; 18. First guide roller; 19. Lifting cylinder; 20. 21. Guide shaft; 22. Linear bearing; 23. Drive motor; 24. Conductive ring; 25. Rubber-coated pressure roller; 26. Heating roller; 27. Mounting hole; 28. Heating tube; 29. ​​Baffle plate; 30. Second height adjustment structure; 31. Second cylinder; 32. Slider seat; 33. Second slide groove; 34. Pressing cylinder seat; 35. Second bearing; 36. Guide roller fixing seat; 37. Second guide roller; 38. Feeding shaft; 39. Magnetic powder brake; 30. Transmission component. Detailed Implementation

[0032] 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.

[0033] Example: As attached Figures 1-5The paper tableware composite die-cutting machine shown includes a punching mechanism 1 for punching and forming multi-layered paper strips that have been pressed together, and a waste material winding mechanism 2 for winding up waste material. The punching mechanism 1 and the waste material winding mechanism 2 are existing technologies, so their specific structures will not be described in detail here. The composite die-cutting machine also includes a frame 3, and the frame 3 is arranged along its length with multiple sets of feeding mechanisms 4 for feeding the rolled paper strips. The paper strips fed out by the multiple sets of feeding mechanisms 4 are stacked one by one along the length of the frame 3. The process involves layering paper strips, with each layer glued on top of the other. The frame 3 is further equipped with multiple composite mechanisms 5 along its length for pressing the stacked paper strips together. Each composite mechanism 5 includes a mounting frame 6, an adhesive applicator 7 mounted on the mounting frame 6 for applying adhesive to the lower layer of paper strips, and a heating and pressing mechanism 8 for pressing the glued lower layer onto the upper layer. The pressed multi-layered paper strips are then cut by a cutting mechanism 1 and wound up by a waste material winding mechanism 2. In this embodiment, there are 9 feeding mechanisms 4 and 8 composite mechanisms 5. This design, by applying adhesive, pressing, and heating the paper strips layer by layer, with pressing and heating occurring simultaneously, and each layer undergoing heating and drying, avoids the problem of difficult-to-dry glue in the middle layers caused by applying adhesive to and pressing multiple layers of paper strips together. Each layer of glue is guaranteed to be completely dry without subsequent drying, significantly improving production efficiency and ensuring product quality stability.

[0034] As attached Figure 2 As shown, the gluing assembly 7 includes a glue tank 9, a first gluing roller 10, and a second gluing roller 11. The first gluing roller 10 and the second gluing roller 11 are rotatably mounted on the mounting frame 6 from top to bottom, with the outer surfaces of the first gluing roller 10 and the second gluing roller 11 in close contact. The paper strip to be glued passes between the first gluing roller 10 and the second gluing roller 11. The glue tank 9 is located below the second gluing roller 11 and holds glue. A portion of the second gluing roller 11 extends into the glue tank 9. The second gluing roller 11, with a portion extending into the glue tank 9, adheres to the glue. When it rolls, it presses the glue onto the paper strip, thereby achieving gluing of the paper strip.

[0035] As attached Figure 2As shown, the mounting frame 6 has a first height adjustment structure 12 on each side, connected to both ends of the first gluing roller 10. The first height adjustment structure 12 includes a first cylinder 13 and a bearing seat 14. The mounting frame 6 has vertically extending first grooves 15 on both sides. A gluing cylinder seat 16 is mounted on the upper end of the first groove 15. The first cylinder 13 is mounted on the corresponding gluing cylinder seat 16. The extended end of the first cylinder 13 is connected to the bearing seat 14 to drive the bearing seat 14 to rise and fall within the first groove 15. A first bearing 17 is mounted on the bearing seat 14. Both ends of the first gluing roller 10 are rotatably engaged with the corresponding first bearing 17. Two additional bearings can also be provided on the mounting frame 6 for engagement with the second gluing roller 11. This design allows for adjustment of the preload between the first gluing roller 10 and the second gluing roller 11, thereby effectively compressing paper strips with different layers.

[0036] As attached Figure 2 As shown, the mounting frame 6 has a first guide roller 18 on each side corresponding to the first gluing roller 10 for guiding paper strips. This design can guide the paper strips that need to be glued, and accurately guide them between the first gluing roller 10 and the second gluing roller 11 for gluing.

[0037] As attached Figure 3 As shown, the mounting frame 6 is also equipped with a lifting cylinder 19 at its bottom. The extended end of the lifting cylinder 19 is connected to the glue tank 9. The lower end of the glue tank 9 is equipped with multiple guide shafts 20, and the bottom of the mounting frame 6 is equipped with multiple linear bearings 21 that cooperate with the guide shafts 20. The height of the glue tank 9 can be adjusted by the second cylinder 30, controlling the relative entry or exit of the second glue roller 11 into the glue tank 9, and controlling its relative immersion depth in the glue tank 9. This facilitates raising the height of the glue tank 9 when the glue level drops, ensuring that the second glue roller 11 is always immersed in the glue. It also facilitates lowering the height of the glue tank 9 to replenish the glue when the glue in the glue tank 9 is used up.

[0038] As attached Figure 2 and attached Figure 4As shown, the heating and pressing assembly 8 includes a drive motor 22 and a conductive ring 23 respectively disposed on both sides of the mounting frame 6, and a rubber-coated pressure roller 24 and a heating roller 25 rotatably disposed on the mounting frame 6 from top to bottom. The outer circular surface of the rubber-coated pressure roller 24 and the outer circular surface of the heating roller 25 are tightly fitted together. Multiple layers of paper strips pass between the rubber-coated pressure roller 24 and the heating roller 25. The heating roller 25 has a plurality of axially extending mounting holes 26 distributed in a circumferential array. Heating tubes 27 are inserted into the mounting holes 26. The conductive ring 23 is sleeved on one end of the heating roller 25 and electrically connected to the heating tube 27 through a wire. An external power supply is provided by electrically connecting the conductive ring 23 through a wire. The drive motor 22 is connected to the other end of the heating roller 25 to drive the heating roller 25 to rotate. More specifically, the drive motor 22 is a servo motor, and the servo motor is connected to the heating roller 25 through a reducer. It can simultaneously compress multiple layers of paper strips and heat them to dry the glue, which not only reduces the size of the equipment but also greatly improves processing efficiency.

[0039] As attached Figure 4 As shown, the heating roller 25 has multiple baffles 28 connected to both ends by screws to press the heating tube 27 into the corresponding mounting holes 26. This design enables the fixed installation of the heating tube 27, and its installation structure is simple, reliable, and very convenient to assemble and disassemble.

[0040] As attached Figure 2 As shown, the mounting frame 6 has a second height adjustment structure 29 on each side, connected to both ends of the coated pressure roller 24. The second height adjustment structure 29 includes a second cylinder 30 and a slider seat 31. The mounting frame 6 has a second sliding groove 32 vertically formed on both sides. A pressing cylinder seat 33 is mounted on the upper end of the second sliding groove 32. The second cylinder 30 is mounted on the corresponding pressing cylinder seat 33. The extended end of the second cylinder 30 is connected to the slider seat 31 to drive the slider seat 31 to rise and fall within the second sliding groove 32. A second bearing 34 is mounted on the slider seat 31. Both ends of the coated pressure roller 24 are rotatably engaged with the corresponding second bearing 34. Additionally, two bearings can be provided on the mounting frame 6 to engage with both ends of the heating roller 25. This design allows for adjustment of the preload between the coated pressure roller 24 and the heating roller 25, thereby achieving effective pressing of paper strips with different layers.

[0041] As attached Figure 2 As shown, a guide roller fixing seat 35 is symmetrically arranged on both sides of the slider seat 31, and a second guide roller 36 is connected to each side of the two slider seats 31 through the corresponding two guide roller fixing seats 35. This design can guide the multi-layer paper strips and accurately guide them between the glue-coating pressure roller 24 and the heating roller 25 for heating and pressing. At the same time, it can also drive the multi-layer paper strips upward during separation, preventing them from being constantly pressed against the heating roller 25 and damaging the multi-layer paper strips.

[0042] As attached Figure 5 As shown, the feeding mechanism 4 includes a feeding shaft 37 and a magnetic powder brake 38. The magnetic powder brake 38 is connected to the feeding shaft 37 via a transmission component 39. The transmission component 39 can be a gear transmission component 39, a sprocket and chain transmission component 39, or a belt transmission component 39, thereby realizing automatic feeding of paper strips.

Claims

1. A composite die-cutting machine for paper tableware, comprising a punching mechanism (1) for punching out multi-layered paper strips formed by compression and a waste material winding mechanism (2) for winding up waste material, characterized in that: It also includes a frame (3), which is provided with multiple sets of feeding mechanisms (4) for feeding paper strips along the length direction. The paper strips fed by the multiple sets of feeding mechanisms (4) are stacked one by one along the length direction of the frame (3). The frame (3) is also provided with multiple sets of composite mechanisms (5) for pressing the stacked paper strips together. The composite mechanism (5) includes a mounting frame (6), a gluing component (7) for applying glue to the lower layer of paper strips on the mounting frame (6), and a heating pressing component (8) for pressing the glued lower layer of paper strips onto the upper layer of paper strips. The multi-layer paper strips after pressing are punched by the punching mechanism (1) and then wound by the waste material winding mechanism (2).

2. The paper tableware composite die-cutting machine according to claim 1, characterized in that: The gluing assembly (7) includes a glue tank (9), a first gluing roller (10), and a second gluing roller (11). The first gluing roller (10) and the second gluing roller (11) are rotatably mounted on the mounting frame (6) from top to bottom. The outer surface of the first gluing roller (10) and the outer surface of the second gluing roller (11) are closely attached. The paper strips to be glued pass between the first gluing roller (10) and the second gluing roller (11). The glue tank (9) is located below the second gluing roller (11), and part of the second gluing roller (11) extends into the glue tank (9).

3. A paper tableware composite die-cutting machine according to claim 2, characterized in that: The mounting frame (6) has a first height adjustment structure (12) on each side, which is connected to both ends of the first gluing roller (10). The first height adjustment structure (12) includes a first cylinder (13) and a bearing seat (14). The mounting frame (6) has a first slide groove (15) on both sides along the vertical direction. A gluing cylinder seat (16) is installed at the upper end of the first slide groove (15). The first cylinder (13) is installed on the corresponding gluing cylinder seat (16). The extended end of the first cylinder (13) is connected to the bearing seat (14) to drive the bearing seat (14) to rise and fall in the first slide groove (15). A first bearing (17) is installed on the bearing seat (14). Both ends of the first gluing roller (10) are rotatably engaged with the corresponding first bearing (17).

4. A paper tableware composite die-cutting machine according to claim 2, characterized in that: The mounting frame (6) is provided with a first guide roller (18) for guiding paper strips on both sides of the first gluing roller (10).

5. A paper tableware composite die-cutting machine according to claim 2, characterized in that: The mounting bracket (6) is also provided with a lifting cylinder (19) at the bottom. The extended end of the lifting cylinder (19) is connected to the glue tank (9). The lower end of the glue tank (9) is provided with multiple guide shafts (20). The bottom of the mounting bracket (6) is provided with multiple linear bearings (21) that cooperate with the guide shafts (20).

6. A paper tableware composite die-cutting machine according to claim 1, characterized in that: The heating and pressing assembly (8) includes a drive motor (22) and a conductive ring (23) respectively disposed on both sides of the mounting frame (6), and a rubber-coated pressure roller (24) and a heating roller (25) rotatably disposed on the mounting frame (6) from top to bottom. The outer circular surface of the rubber-coated pressure roller (24) and the outer circular surface of the heating roller (25) are tightly fitted together. Multiple layers of paper strips pass between the rubber-coated pressure roller (24) and the heating roller (25). The heating roller (25) has multiple mounting holes (26) arranged in a circumferential array extending along the axial direction. A heating tube (27) is inserted into the mounting hole (26). The conductive ring (23) is sleeved on one end of the heating roller (25) and electrically connected to the heating tube (27) through a wire. The drive motor (22) is connected to the other end of the heating roller (25) to drive the heating roller (25) to rotate.

7. A paper tableware composite die-cutting machine according to claim 6, characterized in that: The heating roller (25) has multiple baffles (28) at both ends connected by screws to press the heating tube (27) into the corresponding mounting hole (26).

8. A paper tableware composite die-cutting machine according to claim 6, characterized in that: The mounting frame (6) is provided with a second height adjustment structure (29) on each side, which is connected to both ends of the rubber-coated pressure roller (24). The second height adjustment structure (29) includes a second cylinder (30) and a slider seat (31). The mounting frame (6) is provided with a second slide groove (32) on both sides in a vertical direction. A pressing cylinder seat (33) is installed at the upper end of the second slide groove (32). The second cylinder (30) is installed on the corresponding pressing cylinder seat (33). The extended end of the second cylinder (30) is connected to the slider seat (31) for driving the slider seat (31) to rise and fall in the second slide groove (32). A second bearing (34) is installed on the slider seat (31). Both ends of the rubber-coated pressure roller (24) are respectively rotated and engaged with the corresponding second bearing (34).

9. A paper tableware composite die-cutting machine according to claim 8, characterized in that: A guide roller fixing seat (35) is symmetrically arranged on both sides of the slider seat (31), and a second guide roller (36) is connected to each side of the two slider seats (31) through the corresponding two guide roller fixing seats (35).

10. A paper tableware composite die-cutting machine according to claim 1, characterized in that: The feeding mechanism (4) includes a feeding shaft (37) and a magnetic powder brake (38), and the magnetic powder brake (38) is connected to the feeding shaft (37) via a transmission component (39).

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