Roll paper punching machine for paper cup production

Abstract

The invention provides a roll paper punching machine for paper cup production, and belongs to the technical field of roll paper punching, the roll paper punching machine comprises a mounting frame, the top of the mounting frame is fixedly connected with a first female die frame, a first stabilizing frame, a second stabilizing frame and a second female die frame, and the first stabilizing frame and the second stabilizing frame are located between the first female die frame and the second female die frame; a fixing plate is fixedly connected between the first stabilizing frame and the second stabilizing frame, base materials are arranged on the top of the first female die frame and the top of the second female die frame, and the punching assembly is arranged on the top of the mounting frame and used for punching roll paper; according to the invention, the symmetrically arranged cam groups are adopted to drive the male die frames on the two sides to synchronously and reversely move, so that inertia force generated in the moving process is partially counteracted, and the stable operation of equipment is facilitated. Meanwhile, the dies on the two sides can be driven to synchronously complete punching when the rotating shaft rotates by a circle, double-station operation is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of roll paper punching technology, and more specifically, to a roll paper punching machine for paper cup production. Background Technology

[0002] With the continued growth in demand for disposable food containers such as paper cups and bowls, large-scale, high-efficiency automated production has become the industry standard. As a key link in the production process, the performance of roll paper cutting equipment directly determines the quality of the final product, production costs, and the factory environment.

[0003] Most existing punching machines adopt a single-sided drive punching structure, which is prone to generating unbalanced inertial forces and vibrations during high-speed reciprocating motion. This not only affects the punching accuracy and die life, but also limits the further improvement of equipment speed.

[0004] How to invent a paper roll cutting machine for paper cup production to improve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a roll paper punching machine for paper cup production, which aims to improve the problems mentioned in the background.

[0006] This invention is implemented as follows: This invention provides a roll paper punching machine for paper cup production, including a mounting frame. A first die frame, a first stabilizing frame, a second stabilizing frame, and a second die frame are fixedly connected to the top of the mounting frame. The first and second stabilizing frames are located between the first and second die frames, and a fixing plate is fixedly connected between them. A substrate is provided on the top of both the first and second die frames. The machine also includes: a punching assembly disposed on the top of the mounting frame for punching roll paper; a cam assembly disposed on the fixing plate for providing power to the punching assembly; and a sealing assembly disposed on the first and second die frames for limiting the arbitrary diffusion of dust during punching.

[0007] Preferably, the first die holder has multiple die holes arranged in a fan shape, and multiple paper holders are fixedly connected to the side wall of the first die holder for supporting the roll of paper. Multiple T-tubes are fixedly connected to the side wall of the first die holder.

[0008] Preferably, the cam assembly includes a rotating shaft rotatably connected to a fixed plate. The rotating shaft is connected to an external drive assembly. Multiple cam groups are provided on the rotating shaft. Each cam group includes a first cam and a second cam fixedly sleeved on the rotating shaft. The apexes of the first cam and the second cam are distributed at 180 degrees. A ring body is rotatably connected to the circumferential sidewall of both the first cam and the second cam. A first connecting rod is fixedly connected to the ring body on the first cam, and a second connecting rod is fixedly connected to the ring body on the second cam. The first connecting rod is slidably connected to a second stabilizer, and the second connecting rod is slidably connected to the first stabilizer.

[0009] Preferably, the sealing assembly includes a sealing frame fixedly connected to the first die frame. The sealing frame is rectangular with rounded corners, and paper grooves are provided at the top and bottom. An air-blocking strip is fixedly connected to the inner wall of the sealing frame located at the paper groove. The air-blocking strip is made of rubber and has a V-shaped cross-section. A slit is provided at the bottom of the V-shape of the upper air-blocking strip.

[0010] Preferably, a punch frame is slidably disposed within the sealing frame, the punch frame is rotatably connected to the first connecting rod or the second connecting rod, a sealing ring is embedded in the contour sidewall of the punch frame, multiple guide posts are fixedly connected to the first die frame, an installation cap is fixedly connected to the end of the guide post, multiple steel sleeves are fixedly connected to the sidewall of the punch frame, a retainer is sleeved on the guide post, multiple circumferentially distributed steel balls are installed on the retainer, and relative axial displacement is achieved between the guide post and the steel sleeve through the rolling of the multiple steel balls, a bellows is disposed between the steel sleeve and the installation cap, and the two ends of the bellows are fixedly connected to the steel sleeve and the installation cap by threaded engagement.

[0011] Preferably, the punching assembly includes a plurality of die bodies fixedly connected to the first die holder. The die bodies are arranged in a fan-shaped frame shape, and the positions of the die bodies correspond to the die holes. A fan-shaped groove is formed on the side wall of the die body. A plurality of air guide grooves are formed on the fan-shaped side wall within the fan-shaped groove. The air guide grooves are distributed along the inner side wall of the fan-shaped die body. A through groove is formed at the side wall where the air guide groove is located. The air guide groove is connected to the fan-shaped groove through the through groove. The air guide groove is located on the side wall of the die body that contacts the first die holder.

[0012] Preferably, a plurality of punch seats are fixedly connected to the punch holder, and a punch body is fixedly connected to the punch seat. The punching surface area of ​​the punch body is larger than the area of ​​the surface connected to the punch seat. The punch body and the punch seat are provided with mounting grooves. An air chamber is provided in the mounting groove. The air chamber is fixedly connected to the side wall of the punch holder. The side wall of the air chamber located on the same plane as the punch body has a plurality of air holes. The air chamber is a hollow cavity, and the internal space of the air chamber is connected to the external space only through the air holes.

[0013] Preferably, the first concave mold frame has multiple air passages, one end of which is connected to the interior of the fan-shaped groove, and the other end of which is connected to a three-way pipe. The other two ports of the three-way pipe are respectively connected to one-way valves.

[0014] Preferably, one of the one-way valves is connected to an external air filter, and the other one-way valve is connected to an external gas collection mechanism.

[0015] The beneficial effects of this invention are: 1. The symmetrical cam assembly drives the two punch holders to move synchronously in opposite directions, partially offsetting the inertial forces generated during the movement and contributing to smoother equipment operation. Simultaneously, each rotation of the shaft drives the two dies to complete the punching process synchronously, enabling dual-station operation and improving production efficiency.

[0016] 2. By forming a locally enclosed cavity around the punching area through sealing components, the diffusion range of most dust-laden air can be limited. Combined with the "Z"-shaped gap guide and low-pressure one-way valve collection system, the dust-laden airflow can be directed to a specific processing channel, helping to reduce the escape of dust into the working environment.

[0017] 3. During punching, the compressed air forms an airflow that passes through the "Z"-shaped gap between the punch and die. This airflow can have a certain scouring effect on the mating surfaces of the die, carrying away some of the paper scraps and dust attached to them, which helps to reduce wear caused by dust accumulation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of a roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the cam assembly structure of a roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of the sealing frame structure of a roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 4 This is a schematic diagram of the air-blocking strip structure of a roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 5 This is a schematic diagram of the punch frame structure of a roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 6 This is a schematic diagram of the die body structure of a roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 7 This is a schematic diagram of the punch body structure of a roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 8 This is a schematic cross-sectional view of the first concave die frame of a paper roll paper punching machine for paper cup production provided by an embodiment of the present invention; Figure 9 yes Figure 8 Enlarged view of point A in the middle; Figure 10 This is a schematic diagram of the displacement of the punch body of a roll paper punching machine for paper cup production provided by an embodiment of the present invention.

[0020] In the diagram: 1. Mounting bracket; 2. First die holder; 3. First stabilizing bracket; 4. Second stabilizing bracket; 5. Second die holder; 6. Fixing plate; 7. Base material; 8. Die hole; 9. Paper holder; 10. T-shaped pipe; 12. Rotating shaft; 13. First cam; 14. Second cam; 15. Ring body; 16. First connecting rod; 17. Second connecting rod; 21. Sealing bracket; 22. Paper groove; 23. Air baffle strip; 31. Punch holder; 32. Sealing ring; 33. Guide post; 34. Mounting cover; 35. Steel sleeve; 36. Retainer; 37. Bellows; 41. Die body; 42. Fan-shaped groove; 43. Air guide groove; 44. Through groove; 51. Punch seat; 52. Punch body; 53. Air chamber; 54. Air hole; 55. Air passage. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example, refer to Figure 1A paper roll paper punching machine for paper cup production includes a mounting frame 1. A first die frame 2, a first stabilizing frame 3, a second stabilizing frame 4, and a second die frame 5 are fixedly connected to the top of the mounting frame 1. The first stabilizing frame 3 and the second stabilizing frame 4 are located between the first die frame 2 and the second die frame 5. A fixing plate 6 is fixedly connected between the first stabilizing frame 3 and the second stabilizing frame 4. A substrate 7 is provided on the top of both the first die frame 2 and the second die frame 5. The machine also includes: a punching assembly, which is located on the top of the mounting frame 1 and is used for punching paper rolls; a cam assembly, which is located on the fixing plate 6 and is used to provide power to the punching assembly; and a sealing assembly, which is located on the first die frame 2 and the second die frame 5 and is used to limit the arbitrary diffusion of dust during punching.

[0023] It should be noted that: Mounting bracket 1 is the basic support structure used to support and fix the entire punching machine. It is usually placed horizontally and provides an installation reference for other functional components. The first die holder 2 and the second die holder 5 are respectively fixed to the top sides of mounting bracket 1. The two are symmetrical in structure and are both vertically arranged plate frames used to install the die and support the forces during the punching process. The first stabilizing bracket 3 and the second stabilizing bracket 4 are located between the first die holder 2 and the second die holder 5. They are also vertically fixed to mounting bracket 1 and are mainly used to support the fixing plate 6 connected between them, thereby providing a stable mounting base for the rotating shaft 12 of the cam assembly.

[0024] The first die holder 2 has multiple die holes 8 arranged in a fan shape. Multiple paper holders 9 are fixedly connected to the side wall of the first die holder 2. The paper holders 9 are used to support the roll of paper. Multiple T-tubes 10 are fixedly connected to the side wall of the first die holder 2.

[0025] It should be noted that multiple die holes 8 are provided on the side wall of the first die holder 2. The outline of the die hole 8 is designed according to the fan-shaped unfolded diagram of the target paper cup, and its shape precisely matches the individual cup body paper sheet after punching. After punching, the paper sheet falls and temporarily stays in the die hole 8. The paper sheets produced by subsequent continuous punching will be stacked in sequence. This stacking state can form a relatively sealed effect at the die hole 8, thereby reducing the leakage of dust-laden airflow generated during the punching process.

[0026] On the side wall of the first die holder 2, multiple paper holders 9 are fixedly installed on the outer side of each die hole 8. Their main function is to support and collect the punched paper sheets falling from the die holes 8. The vertical paper sheets are pushed horizontally out of the die holes 8 by the subsequent paper sheets, and their lower edges are naturally supported on the paper holders 9. As production continues, the continuously pushed new paper sheets will push the stack of vertical paper sheets already on the paper holders 9 outward along the length of the paper holders 9, thereby achieving continuous and orderly collection and output of finished products.

[0027] Reference Figures 2-5 The cam assembly includes a rotating shaft 12 rotatably connected to a fixed plate 6. The rotating shaft 12 is connected to an external drive assembly. Multiple cam groups are provided on the rotating shaft 12. Each cam group includes a first cam 13 and a second cam 14 fixedly sleeved on the rotating shaft 12. The highest points of the first cam 13 and the second cam 14 are distributed at 180 degrees. A ring body 15 is rotatably connected to the circumferential sidewall of both the first cam 13 and the second cam 14. A first connecting rod 16 is fixedly connected to the ring body 15 on the first cam 13. A second connecting rod 17 is fixedly connected to the ring body 15 on the second cam 14. The first connecting rod 16 is slidably connected to the second stabilizer 4. The second connecting rod 17 passes through the first stabilizer 3.

[0028] It should be noted that the rotating shaft 12 is driven by an external drive assembly, continuously rotating on the fixed plate 6 and causing multiple sets of cams mounted on it to rotate synchronously. Each set of cams consists of a first cam 13 and a second cam 14, which are fixed to the rotating shaft 12 at a relatively close distance, while the sets of cams maintain a large distance from each other along the axial direction of the rotating shaft 12. All first cams 13 are located on one side of the rotating shaft 12, and all second cams 14 are located on the opposite side.

[0029] The cam itself is an eccentric structure, and its rotational motion will drive the ring body 15, which is rotatably connected to it, to move. Taking the first cam 13 on the same side as an example, its eccentric rotation drives the ring body 15 to oscillate in a circle, and the first connecting rod 16, which is fixedly connected to the ring body 15, converts this oscillation into the linear reciprocating motion of the punch 31 along the guide post 33 through its rotational connection with the punch frame 31.

[0030] The first cam 13 and the second cam 14 in the same cam group have a 180-degree phase difference between their highest eccentric points, ensuring that the punch holders 31 on both sides always move synchronously in opposite directions in a symmetrical manner. This symmetrical drive design cancels out the inertial forces generated on both sides during the movement, thereby improving the overall balance of the equipment and helping to suppress machine vibration. At the same time, each rotation of the rotating shaft 12 drives the punch holders 31 on both sides to complete one punching operation, achieving synchronous processing of the substrates 7 on both sides and improving production efficiency.

[0031] Reference Figures 3-4 The sealing assembly includes a sealing frame 21 fixedly connected to the first die frame 2. The sealing frame 21 is rectangular with rounded corners. Paper grooves 22 are provided at the top and bottom of the sealing frame 21. An air-blocking strip 23 is fixedly connected to the inner wall of the sealing frame 21 located at the paper groove 22. The air-blocking strip 23 is made of rubber and has a "V" shaped cross-section. A slit is provided at the bottom of the "V" shape of the upper air-blocking strip 23.

[0032] It should be noted that the top and bottom of the sealing frame 21 are respectively provided with a paper inlet slot and a paper outlet slot. Corresponding to the position of the paper slot 22, a rubber air-blocking strip 23 with a "V" shaped cross-section is fixedly installed on the inner wall of the sealing frame 21. The upper air-blocking strip 23 has a slit at the bottom of its "V" shape to allow the substrate paper tape to pass through.

[0033] Its working principle is as follows: when the punch holder 31 moves inside the sealing holder 21 to punch, it will compress the internal air. At this time, the compressed airflow will squeeze the elastic sidewall of the "V"-shaped air-blocking strip 23 from both sides, forcing the slit at the bottom of it to close. Its function is similar to a duckbill check valve, thereby effectively preventing dust-laden air from escaping from the paper groove 22.

[0034] During production, the substrate 7 is pulled and conveyed by the paper feed roller assembly located above the punching assembly, passing sequentially through the slit of the upper air-blocking strip 23, the punching station, and the slit of the lower air-blocking strip 23. After the paper strip is punched in the area between the two slits, it is clamped by the traction roller assembly located below and continues to be pulled out, achieving continuous production.

[0035] A punch frame 31 is slidably disposed inside the sealing frame 21. The punch frame 31 is rotatably connected to the first connecting rod 16 or the second connecting rod 17. A sealing ring 32 is embedded in the contour side wall of the punch frame 31. Multiple guide posts 33 are fixedly connected to the first die frame 2. A mounting cover 34 is fixedly connected to the end of the guide post 33. Multiple steel sleeves 35 are fixedly connected to the side wall of the punch frame 31. A retainer 36 is sleeved on the guide post 33. Multiple circumferentially distributed steel balls are installed on the retainer 36. The guide post 33 and the steel sleeve 35 achieve relative axial displacement through the rolling of multiple steel balls. Multiple circumferentially distributed steel balls enable the steel sleeve 35 to slide axially along the guide post 33 with low resistance and high precision, thereby ensuring the stability of the punch frame 31 during movement. A bellows 37 is disposed between the steel sleeve 35 and the mounting cover 34. The two ends of the bellows 37 are fixedly connected to the steel sleeve 35 and the mounting cover 34 through threaded engagement. The two ends of the bellows 37 are fixedly connected to the steel sleeve 35 and the mounting cover 34 by threads, forming a flexible sealed cavity that can expand and contract with the movement of the punch frame 31, sealing the gap between the moving parts. The sealing ring 32 is embedded in the contour side wall of the punch frame 31 to seal the sliding gap between the punch frame 31 and the inner wall of the sealing frame 21, preventing dust and airflow from leaking out.

[0036] Reference Figures 6-8The punching assembly includes multiple die bodies 41 fixedly connected to the first die holder 2. The die bodies 41 are arranged in a fan-shaped frame shape. The die bodies 41 correspond to the die holes 8. A fan-shaped groove 42 is opened on the side wall of the die body 41. Multiple air guide grooves 43 are opened on the fan-shaped side wall inside the fan-shaped groove 42. The air guide grooves 43 are distributed along the inner side wall of the fan-shaped die body 41. A through groove 44 is opened at the side wall where the air guide groove 43 is located. The air guide groove 43 is connected to the fan-shaped groove 42 through the through groove 44. The air guide groove 43 is located on the side wall of the die body 41 that is in contact with the first die holder 2.

[0037] Multiple punch seats 51 are fixedly connected to the punch holder 31. A punch body 52 is fixedly connected to the punch seat 51. The punching surface area of ​​the punch body 52 is larger than the area of ​​the surface connected to the punch seat 51. The punch body 52 and the punch seat 51 are provided with mounting grooves. An air chamber 53 is provided in the mounting groove. The air chamber 53 is fixedly connected to the side wall of the punch holder 31. Multiple air holes 54 are opened on the side wall of the air chamber 53 located on the same plane as the punch body 52. ​​The air chamber 53 is a hollow cavity. The internal space of the air chamber 53 is connected to the external space only through the air holes 54.

[0038] It should be noted that when the punch holder 31 moves towards the first die holder 2, the punch body 52 moves towards the inside of the fixed die body 41. The cutting edge of the punch body 52 and the cutting edge of the die body 41 form a precise shearing pair. The moving punch body 52 presses the substrate 7 material covering the die body 41 into its cavity. Under the shearing action of the punch and die cutting edges, the material is cut and separated along the preset fan-shaped contour, completing the punching of a single paper cup body. After punching, the punch holder 31 retracts under the drive of the cam to prepare for the next punching.

[0039] The punch body 52 is designed with a stepped structure, and the area of ​​its punching end face is larger than the root area connected to the punch seat 51. When the punch body 52 fully enters the inner side of the die body 41 during the punching stroke, a surrounding gap is formed between its stepped edge and the inner wall of the die body 41. This gap, together with the air guide groove 43 opened on the side wall of the die body 41, forms a zigzag airflow channel. Figure 9 As shown, the channel has an overall "Z" shaped structure.

[0040] During the punching process, the punch holder 31 moves towards the first die holder 2 and compresses the sealed space between them. Under pressure, the compressed air passes through the "Z"-shaped gap between the punch body 52 and the die body 41 at high speed. The airflow first passes through the gap, then enters the air guide slot 43, and then flows through the through slot 44 into the fan-shaped slot 42 inside the die body 41. Finally, it is guided to the external collection and processing system through the air passage 55 connecting the fan-shaped slot 42.

[0041] The first concave mold frame 2 has multiple air passages 55. One end of the air passage 55 is connected to the interior of the fan-shaped groove 42, and the other end of the air passage 55 is connected to the three-way pipe 10. The other two ports of the three-way pipe 10 are respectively connected to one-way valves.

[0042] One of the one-way valves is connected to an external air filter, allowing only filtered clean air to flow into the air duct 55 and the connected sealed cavity in one direction to replenish the gas required for changes in space volume. The other one-way valve is connected to an external gas collection mechanism (e.g., a collection bag in conjunction with a low-pressure induced draft fan), allowing only the dust-laden airflow discharged from the sealed cavity to flow out in one direction and enter the subsequent treatment system.

[0043] It should be noted that paper scraps and dust generated during the punching process easily adhere to the cutting edges and mating surfaces of the die body 41 and the punch body 52, accelerating die wear. To address this issue, this structure utilizes the synergistic effect of sealing components and airflow channels to control dust.

[0044] This structure forms a partially enclosed area between the punch holder 31 and the first die holder 2 through a sealing assembly. This area confines most of the dust-laden air generated during punching, thereby reducing the diffusion of dust into the surrounding space.

[0045] During the punching process, the movement of the punch holder 31 compresses the air within the enclosed area. The compressed air forms an airflow that flows out from the "Z"-shaped gap between the punch body 52 and the die body 41. The airflow passes through the air guide groove 43 and the through groove 44, enters the fan-shaped groove 42 of the die body 41, and is finally discharged through the air passage 55.

[0046] It should be noted that: reference Figure 10 When the punch body 52 completes the punching and continues to move, its punching surface passes over the die body 41 and enters the die hole 8 of the first die holder 2. This squeezes the air between the stacked paper sheets in the die hole 8 and the front face of the punch. This squeezed air enters the cavity of the air chamber 53 through multiple air holes 54 opened on the punching surface of the punch body 52, thereby compressing the gas in the air chamber 53. Subsequently, when the punch body 52 begins its return motion, the temporarily compressed air in the air chamber 53 is discharged outward through the air holes 54. This airflow fills the tiny gap formed between the punching surface and the uppermost paper sheet during the punch's retraction, avoiding the suction effect caused by a momentary local vacuum, thus preventing the punched paper sheets that should remain in the die hole 8 from being carried out.

[0047] Initially, the exit of die hole 8 is blocked by a sliding stop block. When the punch body 52 enters die hole 8 after punching, the air between it and the stop block is compressed and enters air chamber 53 through air hole 54. The stop block does not move temporarily due to friction, ensuring that the air can be effectively compressed. When the punch body 52 retracts, the compressed air in air chamber 53 is discharged from air hole 54, filling the gap between the punch and the paper. At the same time, the contact surface between the stop block and the paper also plays an adsorption role. Together, they prevent the paper from being carried away from die hole 8 as the punch retracts.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A roll paper punching machine for paper cup production, comprising a mounting frame (1), characterized in that, The top of the mounting frame (1) is fixedly connected to a first mold base (2), a first stabilizing frame (3), a second stabilizing frame (4), and a second mold base (5). The first stabilizing frame (3) and the second stabilizing frame (4) are located between the first mold base (2) and the second mold base (5). A fixing plate (6) is fixedly connected between the first stabilizing frame (3) and the second stabilizing frame (4). The top of both the first mold base (2) and the second mold base (5) is provided with a base material (7). The mounting frame (1) also includes: A punching assembly is disposed on the top of the mounting frame (1) and is used for punching paper rolls; A cam assembly is mounted on a fixed plate (6) and is used to provide power to the punching assembly; A sealing assembly is disposed on the first die holder (2) and the second die holder (5), and the sealing assembly is used to limit the arbitrary diffusion of dust during punching.

2. The roll paper punching machine for paper cup production according to claim 1, characterized in that, The first concave mold frame (2) has multiple mold holes (8) arranged in a fan shape. Multiple paper holders (9) are fixedly connected to the side wall of the first concave mold frame (2). The paper holders (9) are used to support the roll paper. Multiple three-way pipes (10) are fixedly connected to the side wall of the first concave mold frame (2).

3. A roll paper punching machine for paper cup production according to claim 1, characterized in that, The cam assembly includes a rotating shaft (12) rotatably connected to a fixed plate (6). The rotating shaft (12) is connected to an external drive assembly. Multiple cam groups are provided on the rotating shaft (12). Each cam group includes a first cam (13) and a second cam (14) fixedly sleeved on the rotating shaft (12). The apexes of the first cam (13) and the second cam (14) are distributed at 180 degrees. A ring body (15) is rotatably connected to the circumferential sidewall of the first cam (13) and the second cam (14). A first connecting rod (16) is fixedly connected to the ring body (15) on the first cam (13). A second connecting rod (17) is fixedly connected to the ring body (15) on the second cam (14). The first connecting rod (16) is slidably connected to the second stabilizer (4). The second connecting rod (17) is slidably connected to the first stabilizer (3).

4. A roll paper punching and cutting machine for paper cup production according to claim 3, characterized in that, The sealing assembly includes a sealing frame (21) fixedly connected to the first mold frame (2). The sealing frame (21) is a rectangular frame with rounded corners. Paper grooves (22) are provided at the top and bottom of the sealing frame (21). An air-blocking strip (23) is fixedly connected to the inner wall of the sealing frame (21) located at the paper groove (22). The air-blocking strip (23) is made of rubber and has a "V" shaped cross section. A slit is provided at the bottom of the "V" shape of the upper air-blocking strip (23).

5. A roll paper punching machine for paper cup production according to claim 4, characterized in that, A punch frame (31) is slidably disposed inside the sealing frame (21). The punch frame (31) is rotatably connected to the first connecting rod 16 or the second connecting rod (17). A sealing ring (32) is embedded in the contour side wall of the punch frame (31). A plurality of guide posts (33) are fixedly connected to the first die frame (2). An installation cover (34) is fixedly connected to the end of the guide post (33). A plurality of steel sleeves (35) are fixedly connected to the side wall of the punch frame (31). A retainer (36) is sleeved on the guide post (33). A plurality of circumferentially distributed steel balls are installed on the retainer (36). The relative axial displacement between the guide post (33) and the steel sleeve (35) is achieved by the rolling of the plurality of steel balls. A bellows (37) is disposed between the steel sleeve (35) and the installation cover (34). The two ends of the bellows (37) are fixedly connected to the steel sleeve (35) and the installation cover (34) by threaded engagement.

6. A roll paper punching machine for paper cup production according to claim 2, characterized in that, The punching assembly includes multiple die bodies (41) fixedly connected to the first die holder (2). The die bodies (41) are arranged in a fan-shaped frame. The die bodies (41) correspond to the die holes (8). A fan-shaped groove (42) is provided on the side wall of the die body (41). Multiple air guide grooves (43) are provided on the fan-shaped side wall inside the fan-shaped groove (42). The air guide grooves (43) are distributed along the inner side wall of the fan-shaped die body (41). A through groove (44) is provided at the side wall where the air guide groove (43) is located. The air guide groove (43) is connected to the fan-shaped groove (42) through the through groove (44). The air guide groove (43) is located on the side wall of the die body (41) that is in contact with the first die holder (2).

7. A roll paper punching machine for paper cup production according to claim 5, characterized in that, Multiple punch seats (51) are fixedly connected to the punch frame (31), and a punch body (52) is fixedly connected to the punch seat (51). The punching surface area of ​​the punch body (52) is larger than the area of ​​the connecting surface with the punch seat (51). The punch body (52) and the punch seat (51) are provided with mounting grooves. An air chamber (53) is provided in the mounting groove. The air chamber (53) is fixedly connected to the side wall of the punch frame (31). The side wall of the air chamber (53) located on the same plane as the punch body (52) is provided with multiple air holes (54). The air chamber (53) is a hollow cavity. The internal space of the air chamber (53) is connected to the external space only through the air holes (54).

8. A roll paper punching machine for paper cup production according to claim 2, characterized in that, The first concave mold frame (2) has multiple air passages (55) inside. One end of the air passage (55) is connected to the inside of the fan-shaped groove (42), and the other end of the air passage (55) is connected to the three-way pipe (10). The other two ports of the three-way pipe (10) are respectively connected to one-way valves.

9. A roll paper punching machine for paper cup production according to claim 8, characterized in that, One of the one-way valves is connected to the external air filter, and the other one-way valve is connected to the external gas collection mechanism.

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