Paper tableware forming machine

Abstract

The utility model discloses a paper tableware forming machine which comprises a punch forming device, a feeding device and a discharging device. The feeding device and the discharging device are arranged on the two sides of the punch forming device. The punch forming device comprises a bottom frame, a plurality of guide rods arranged on the bottom frame, a hydraulic cylinder arranged at the upper ends of the guide rods, an upper die set arranged at the output end of the hydraulic cylinder and a lower die set arranged on the bottom frame, a plurality of upper pressing blocks are arranged at the lower end of the upper die set, and a plurality of lower die grooves are formed in the upper end of the lower die set; the feeding device comprises a material base and a first carrying mechanism, a plurality of material grooves used for containing the composite paperboards are formed in the material base, and the first carrying mechanism is used for carrying the composite paperboards in the multiple material grooves to the punch forming device. The discharging device comprises a second carrying mechanism and a discharging conveying belt. The second carrying mechanism is used for carrying the multiple formed tableware on the punch forming device to the discharging conveying belt. According to the paper tableware feeding device, efficient feeding, forming and discharging of paper tableware can be achieved, and the production efficiency of the paper tableware is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of paper tableware production equipment, and in particular to a paper tableware forming machine. 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 issues, the applicant has developed a method that involves laminating multiple layers of paper together with adhesive, drying them, die-cutting them, and finally stamping them to form complete tableware. Compared to pulp tableware, this method offers advantages such as greater environmental friendliness and higher compressive strength. However, in the aforementioned production process, after the composite paperboard is die-cut into multiple flat tableware shapes, achieving efficient feeding and unloading during the stamping process becomes a key factor in improving the production efficiency of composite tableware. Utility Model Content

[0005] The purpose of this invention is to provide a paper tableware forming machine. This invention can realize efficient feeding, forming and discharging of paper tableware, greatly improve the production efficiency of paper tableware, and facilitate mass production.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper tableware forming machine, comprising a stamping forming device and a feeding device and a discharging device disposed on both sides of the stamping forming device;

[0007] The stamping forming device includes a base frame, a plurality of guide rods disposed on the base frame, a hydraulic cylinder disposed on the upper end of the guide rods, an upper die assembly disposed on the output end of the hydraulic cylinder, and a lower die assembly disposed on the base frame. The lower end of the upper die assembly is provided with a plurality of upper pressure blocks, and the upper end of the lower die assembly is provided with a plurality of lower die grooves adapted to the upper pressure blocks.

[0008] The feeding device includes a material base and a first conveying mechanism. The material base is provided with multiple material slots for placing composite paperboard. The first conveying mechanism is used to repeatedly convey the composite paperboard in the multiple material slots to the stamping and forming device for stamping.

[0009] The discharge device includes a second conveying mechanism and a discharge conveyor belt. The second conveying mechanism is used to transport multiple formed tableware items from the stamping device to the discharge conveyor belt.

[0010] By adopting the above technical solution, the die-cut composite paperboard is placed in the material trough of the material seat. The first conveying mechanism simultaneously transports multiple composite paperboards to the stamping and forming device. When the upper and lower molds of the stamping and forming device cooperate, multiple composite paperboards are stamped and formed. Then, the second conveying mechanism simultaneously transports multiple formed tableware to the discharge conveyor belt for discharge. By repeating this process, efficient feeding, forming and discharging of paper tableware can be achieved, which greatly improves the production efficiency of paper tableware and is conducive to mass production operations.

[0011] The present invention is further configured such that the first conveying mechanism and the second conveying mechanism have the same structure. The first conveying mechanism includes a suction cup fixing plate, a plurality of suction cups disposed on the suction cup fixing plate, a lifting module for driving the suction cup fixing plate to move up and down, and a horizontal moving module for driving the suction cup fixing plate to move toward or away from the stamping forming device.

[0012] By adopting the above technical solution, the lifting module is combined with the horizontal moving module to realize the up-down and back-and-forth movements of the suction cup fixing plate, ensuring that after the suction cup on the suction cup fixing plate grabs the composite cardboard, it can quickly and accurately reach the processing position of the stamping and forming device.

[0013] The present invention is further configured such that there are two sets of lifting modules, which are symmetrically arranged on both sides of the suction cup fixing plate. Each lifting module includes a base, a bracket set on the base, and a lifting cylinder set on the bracket. The output end of the lifting cylinder is connected to the suction cup fixing plate for driving the suction cup fixing plate to lift.

[0014] By adopting the above technical solution, two sets of lifting cylinders are used to drive the suction cup fixing frame to lift and lower, which can quickly realize the gripping and lifting of the suction cup, thus improving processing efficiency.

[0015] The present invention is further configured such that vertical sliders are symmetrically arranged on both sides of the suction cup fixing plate, and vertical guide rails that cooperate with the vertical sliders are arranged on the side of the base.

[0016] By adopting the above technical solution, the overall stability of the suction cup fixing plate during lifting and lowering can be further improved, and shaking during movement can be avoided.

[0017] The present invention is further configured such that the horizontal moving module includes a first drive motor and a first guide rail and a second guide rail disposed on both sides of the suction cup fixing plate. The base has a first slider cooperating with the first guide rail and a second slider cooperating with the second guide rail on both sides. A first lead screw seat and a second lead screw seat are respectively disposed on the sides of the first and second guide rails. A first ball screw and a second ball screw are rotatably disposed on the first and second lead screw seats respectively. A first threaded sleeve is connected to the first ball screw, and the first threaded sleeve is connected to one side of the base via a first connecting plate. A second threaded sleeve is connected to the second ball screw, and the second threaded sleeve is connected to the other side of the base via a second connecting plate. The output end of the first drive motor is connected to the first ball screw, and the first ball screw and the second ball screw are connected by a synchronous belt transmission assembly.

[0018] By adopting the above technical solution, the horizontal displacement of the suction cup fixing plate is achieved by using a motor to drive the lead screw transmission. This not only provides precise control, enabling accurate gripping and deployment of the suction cup, but also ensures that the mechanism operates stably and reliably.

[0019] The present invention is further configured such that the feeding device includes a material support mechanism, the material troughs are distributed in a matrix, and the material base is provided with a through groove that connects each row of material troughs. The material support mechanism includes a material support plate and a lifting module for driving the material support plate to rise and fall. The material support plate extends into each through groove for gradually lifting the vertically stacked composite cardboard.

[0020] By adopting the above technical solution, the lifting module drives the material support plate to gradually lift the vertically stacked composite paperboard, so that the top layer of composite paperboard is always in the same position, which is convenient for the suction cup to grasp accurately.

[0021] The present invention is further configured such that the lifting module includes a second drive motor, a third ball screw, and a fourth ball screw; the base frame is provided with a third screw seat that cooperates with the third ball screw and a fourth screw seat that cooperates with the fourth ball screw; the material support plate is provided with a third threaded sleeve that cooperates with the third ball screw and a fourth threaded sleeve that cooperates with the fourth ball screw; the third ball screw and the fourth ball screw are connected by a synchronous chain transmission assembly; the output end of the second drive motor is connected to the third ball screw; the base frame is also provided with a plurality of first guide rods and second guide rods extending vertically; and a first linear bearing that cooperates with the first guide rod and a second linear bearing that cooperates with the second guide rod are respectively installed on both sides of the material support plate.

[0022] By adopting the above technical solution, the material support plate is lifted by the structure of motor and lead screw, the stroke control is precise, and the stability of the material support plate's upward movement can be guaranteed.

[0023] The present invention is further provided that bearings are respectively installed on both sides of the material support plate to abut against the side of the material seat and form a rolling fit during lifting.

[0024] By adopting the above technical solution, the stability of the movement of the support plate when lifting the composite paperboard can be further improved. Attached Figure Description

[0025] Figure 1 This is a first-view structural schematic diagram of the entire utility model;

[0026] Figure 2 This is a second view structural diagram of the entire utility model;

[0027] Figure 3 This is a schematic diagram of the stamping forming device of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the first handling mechanism of this utility model;

[0029] Figure 5 This is a schematic diagram of the mating structure of the material holder and the material support plate of this utility model;

[0030] Figure 6 This is a first-view structural schematic diagram of the material support mechanism of this utility model;

[0031] Figure 7 This is a second view of the material support mechanism of this utility model.

[0032] In the diagram: 1. Stamping and forming device; 2. Feeding device; 3. Discharging device; 4. Base frame; 5. Guide rod; 6. Hydraulic cylinder; 7. Upper die assembly; 8. Lower die assembly; 9. Upper pressure block; 10. Lower die groove; 11. Material seat; 12. First conveying mechanism; 13. Material trough; 14. Second conveying mechanism; 15. Discharge conveyor belt; 16. Suction cup fixing plate; 17. Suction cup; 18. Lifting module; 19. Horizontal moving module; 20. Base; 21. Bracket; 22. Lifting cylinder; 23. Vertical slider; 24. Vertical guide rail; 25. First drive motor; 26. First guide rail; 27. Second guide rail; 28. First slider; 29. ​​Second slider; 30. First screw... 31. Second lead screw seat; 32. First ball screw; 33. Second ball screw; 34. First threaded sleeve; 35. First connecting plate; 36. Second threaded sleeve; 37. Second connecting plate; 38. Synchronous belt drive assembly; 39. Material support mechanism; 40. Through groove; 41. Material support plate; 42. Lifting module; 43. Second drive motor; 44. Third ball screw; 45. Fourth ball screw; 46. Third lead screw seat; 47. Fourth lead screw seat; 48. Third threaded sleeve; 49. Fourth threaded sleeve; 50. Synchronous chain drive assembly; 51. First guide rod; 52. Second guide rod; 53. First linear bearing; 54. Second linear bearing; 55. Bearing. Detailed Implementation

[0033] 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.

[0034] Example: As attached Figures 1-7 The paper tableware forming machine shown includes a stamping forming device 1 and a feeding device 2 and a discharging device 3 disposed on both sides of the stamping forming device 1.

[0035] The stamping forming device 1 includes a base frame 4, a plurality of guide rods 5 disposed on the base frame 4, a hydraulic cylinder 6 disposed on the upper end of the guide rods 5, an upper die 7 disposed on the output end of the hydraulic cylinder 6, and a lower die 8 disposed on the base frame 4. The lower end of the upper die 7 is provided with a plurality of upper pressing blocks 9, and the upper end of the lower die 8 is provided with a plurality of lower die grooves 10 adapted to the upper pressing blocks 9. The upper die 7 and the lower die 8 can be provided with corresponding upper pressing blocks 9 and lower die grooves 10 according to the corresponding product. In this embodiment, a spoon-shaped tableware is used.

[0036] The feeding device 2 includes a material base 11 and a first conveying mechanism 12. The material base 11 is provided with a plurality of material slots 13 for placing composite paperboard. The first conveying mechanism 12 is used to repeatedly convey the composite paperboard in the plurality of material slots 13 to the stamping and forming device 1 for stamping.

[0037] The discharge device 3 includes a second conveying mechanism 14 and a discharge conveyor belt 15. The second conveying mechanism 14 is used to transport multiple formed tableware from the stamping device 1 to the discharge conveyor belt 15.

[0038] The die-cut composite cardboard is placed in the material trough 13 of the material base 11. The first conveying mechanism 12 simultaneously conveys multiple composite cardboards to the stamping and forming device 1. When the upper mold 7 and lower mold 8 of the stamping and forming device 1 cooperate, the multiple composite cardboards are stamped and formed. Then, the second conveying mechanism 14 simultaneously conveys multiple formed tablewares to the discharge conveyor belt 15 for discharge. This process is repeated to achieve efficient feeding, forming and discharge of paper tableware, which greatly improves the production efficiency of paper tableware and is conducive to mass production.

[0039] The first transport mechanism 12 and the second transport mechanism 14 have the same structure, as shown in the attached figure. Figure 4 As shown, the first conveying mechanism 12 includes a suction cup fixing plate 16, a plurality of suction cups 17 disposed on the suction cup fixing plate 16, a lifting module 18 for driving the suction cup fixing plate 16 to move up and down, and a horizontal moving module 19 for driving the suction cup fixing plate 16 to move toward or away from the stamping forming device 1. The number of suction cups 17 is the same as the number of lower mold slots 10, and their distribution is also the same as that of the lower mold slots 10. The lifting module 18, in conjunction with the horizontal moving module 19, enables the suction cup fixing plate 16 to move up and down and back and forth, ensuring that after the suction cups 17 on the suction cup fixing plate 16 grasp the composite cardboard, they can quickly and accurately reach the processing position of the stamping forming device 1.

[0040] As attached Figure 4 As shown, there are two sets of lifting modules 18, symmetrically arranged on both sides of the suction cup fixing plate 16. Each lifting module 18 includes a base 20, a bracket 21 mounted on the base 20, and a lifting cylinder 22 mounted on the bracket 21. The output end of the lifting cylinder 22 is connected to the suction cup fixing plate 16 to drive the suction cup fixing plate 16 to rise and fall. By using two sets of lifting cylinders 22 to drive the suction cup 17 fixing frame to rise and fall, the gripping and lifting of the suction cup 17 can be quickly realized, which is beneficial to improving processing efficiency.

[0041] As attached Figure 4As shown, vertical sliders 23 are symmetrically arranged on both sides of the suction cup fixing plate 16, and vertical guide rails 24 that cooperate with the vertical sliders 23 are arranged vertically on the side of the base 20. This design can further improve the overall stability of the suction cup fixing plate 16 during lifting and lowering, and avoid shaking during movement.

[0042] As attached Figure 4 As shown, the horizontal moving module 19 includes a first drive motor 25 and a first guide rail 26 and a second guide rail 27 disposed on both sides of the suction cup fixing plate 16. The base 20 has a first slider 28 cooperating with the first guide rail 26 and a second slider 29 cooperating with the second guide rail 27 on both sides. A first lead screw seat 30 and a second lead screw seat 31 are respectively disposed on the sides of the first guide rail 26 and the second guide rail 27. A first ball screw 32 and a second ball screw 33 are rotatably disposed on the first lead screw seat 30 and the second lead screw seat 31, respectively. A first threaded sleeve 34 is connected to the first ball screw 32 via a first connecting plate 35. Connected to one side of the base 20, the second ball screw 33 is fitted with a second threaded sleeve 36, which is connected to the other side of the base 20 via a second connecting plate 37. The output end of the first drive motor 25 is connected to the first ball screw 32, and the first ball screw 32 and the second ball screw 33 are connected by a synchronous belt drive assembly 38. The synchronous belt drive assembly 38 is a common transmission structure, including a drive pulley on the first ball screw 32, a driven pulley on the second ball screw 33, and a belt covering the drive pulley and the driven pulley. In addition, a tensioning pulley can be added to adjust the belt tension. The horizontal displacement of the suction cup fixing plate 16 is achieved by the motor driving the screw drive, which not only provides precise control and enables precise gripping and deployment of the suction cup 17, but also ensures stable and reliable operation of the mechanism.

[0043] As attached Figures 5-7 As shown, the feeding device 2 also includes a material support mechanism 39. The material troughs 13 are arranged in a matrix, and the material base 11 is provided with a through groove 40 that connects each row of material troughs 13. That is, each material trough 13 is composed of grooves on both sides of the through groove 40, which are used for positioning the two ends of the composite paperboard. The material support mechanism 39 includes a material support plate 41 and a lifting module 42 for driving the material support plate 41 to rise and fall. The material support plate 41 extends into each through groove 40 to gradually lift the vertically stacked composite paperboard. Through the lifting module 42, the material support plate 41 is driven to gradually lift the vertically stacked composite paperboard, so that the top layer of composite paperboard is always in the same position, which is convenient for the suction cup 17 to grasp accurately.

[0044] As attached Figures 5-7As shown, the lifting module 42 includes a second drive motor 43, a third ball screw 44, and a fourth ball screw 45. The base frame 4 is provided with a third screw seat 46 that cooperates with the third ball screw 44 and a fourth screw seat 47 that cooperates with the fourth ball screw 45. The material support plate 41 is provided with a third threaded sleeve 48 that cooperates with the third ball screw 44 and a fourth threaded sleeve 49 that cooperates with the fourth ball screw 45. The third ball screw 44 and the fourth ball screw 45 are connected by a synchronous chain transmission assembly 50. The output end of the second drive motor 43 is connected to the third ball screw 44. The base frame 4 is also provided with a plurality of first guide rods 51 and second guide rods 52 extending vertically. The material support plate 41 is respectively equipped with a first linear bearing 53 that cooperates with the first guide rod 51 and a second linear bearing 54 that cooperates with the second guide rod 52. The synchronous chain drive assembly 50 is a conventional transmission structure, comprising a drive sprocket mounted on the output end of the second drive motor 43, a first driven sprocket mounted on the third ball screw 44, a second driven sprocket mounted on the fourth ball screw 45, and a chain meshing with the drive sprocket, the first driven sprocket, and the second driven sprocket. The structure of the motor and the screw working together drives the material support plate 41 to rise, achieving precise stroke control and ensuring the stability of the upward movement of the material support plate 41.

[0045] As attached Figures 5-7 As shown, bearings 55 are installed on both sides of the material support plate 41 to abut against the sides of the material base 11 and form a rolling fit during lifting. Specifically, screw bearings 55 can be used for easy installation. This design can further improve the stability of the material support plate 41 during the lifting of the composite paperboard.

Claims

1. A paperware forming machine characterized by: It includes a stamping forming device (1) and a feeding device (2) and a discharging device (3) disposed on both sides of the stamping forming device (1); The stamping forming device (1) includes a base frame (4), a plurality of guide rods (5) disposed on the base frame (4), a hydraulic cylinder (6) disposed on the upper end of the guide rods (5), an upper die assembly (7) disposed on the output end of the hydraulic cylinder (6), and a lower die assembly (8) disposed on the base frame (4). The lower end of the upper die assembly (7) is provided with a plurality of upper pressure blocks (9), and the upper end of the lower die assembly (8) is provided with a plurality of lower die grooves (10) adapted to the upper pressure blocks (9). The feeding device (2) includes a material seat (11) and a first conveying mechanism (12). The material seat (11) is provided with a plurality of material slots (13) for placing composite paperboard. The first conveying mechanism (12) is used to repeatedly convey the composite paperboard in the plurality of material slots (13) to the stamping forming device (1) for stamping. The discharge device (3) includes a second conveying mechanism (14) and a discharge conveyor belt (15). The second conveying mechanism (14) is used to transport multiple formed tableware from the stamping device (1) to the discharge conveyor belt (15).

2. A paperware forming machine according to claim 1 wherein: The first transport mechanism (12) and the second transport mechanism (14) have the same structure. The first transport mechanism (12) includes a suction cup fixing plate (16), a plurality of suction cups (17) disposed on the suction cup fixing plate (16), a lifting module (18) for driving the suction cup fixing plate (16) to move up and down, and a horizontal moving module (19) for driving the suction cup fixing plate (16) to move toward or away from the stamping forming device (1).

3. A paperware forming machine according to claim 2 wherein: The number of lifting modules (18) is two sets, and they are symmetrically arranged on both sides of the suction cup fixing plate (16). The lifting module (18) includes a base (20), a bracket (21) set on the base (20), and a lifting cylinder (22) set on the bracket (21). The output end of the lifting cylinder (22) is connected to the suction cup fixing plate (16) to drive the suction cup fixing plate (16) to lift.

4. A paperware forming machine according to claim 3 wherein: The suction cup fixing plate (16) is symmetrically provided with vertical sliders (23) on both sides, and the base (20) is provided with a vertical guide rail (24) on the side that cooperates with the vertical sliders (23).

5. A paperware forming machine as defined in claim 3, wherein: The horizontal moving module (19) includes a first drive motor (25) and a first guide rail (26) and a second guide rail (27) disposed on both sides of the suction cup fixing plate (16). The base (20) is provided with a first slider (28) cooperating with the first guide rail (26) and a second slider (29) cooperating with the second guide rail (27) on both sides respectively. A first lead screw seat (30) and a second lead screw seat (31) are respectively provided on the sides of the first guide rail (26) and the second lead screw seat (31). A first ball screw (32) and a second ball screw (33) are rotatably disposed on the first lead screw seat (30) and the second lead screw seat (31) respectively. Two ball screws (33), a first threaded sleeve (34) is connected to the first ball screw (32), the first threaded sleeve (34) is connected to one side of the base (20) through a first connecting plate (35), a second threaded sleeve (36) is connected to the second ball screw (33), the second threaded sleeve (36) is connected to the other side of the base (20) through a second connecting plate (37), the output end of the first drive motor (25) is connected to the first ball screw (32), and the first ball screw (32) and the second ball screw (33) are connected by a synchronous belt drive assembly (38).

6. A paperware forming machine as defined in claim 1, wherein: The feeding device (2) also includes a material support mechanism (39). The material troughs (13) are arranged in a matrix, and the material base (11) is provided with a through groove (40) that connects each row of material troughs (13). The material support mechanism (39) includes a material support plate (41) and a lifting module (42) for driving the material support plate (41) to rise and fall. The material support plate (41) extends into each through groove (40) to gradually lift the vertically stacked composite paperboard.

7. A paperware forming machine according to claim 6 wherein: The lifting module (42) includes a second drive motor (43), a third ball screw (44), and a fourth ball screw (45). The base frame (4) is provided with a third screw seat (46) that cooperates with the third ball screw (44) and a fourth screw seat (47) that cooperates with the fourth ball screw (45). The material support plate (41) is provided with a third threaded sleeve (48) that cooperates with the third ball screw (44) and a fourth threaded sleeve (49) that cooperates with the fourth ball screw (45). (44) and the fourth ball screw (45) are connected by a synchronous chain drive assembly (50). The output end of the second drive motor (43) is connected to the third ball screw (44). The base frame (4) is also provided with a plurality of first guide rods (51) and second guide rods (52) extending vertically. The material support plate (41) is respectively equipped with a first linear bearing (53) that cooperates with the first guide rod (51) and a second linear bearing (54) that cooperates with the second guide rod (52).

8. A paperware forming machine according to claim 7 wherein: The material support plate (41) is equipped with bearings (55) on both sides for rolling contact with the side of the material seat (11) during lifting.

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