Paper cup hemming linkage device

Abstract

The invention relates to a paper cup hemming linkage device which comprises a cup supporting mechanism, a hemming mechanism and a driving mechanism, and the cup supporting mechanism is used for supporting a paper cup base. The hemming mechanism is located above the cup supporting mechanism in the height direction and used for hemming the cup opening of the paper cup. The driving mechanism comprises an output shaft, two eccentric wheels and two first lifting rod sets, the two eccentric wheels are fixedly arranged at the two ends of the output shaft in a sleeving mode respectively, one end of each first lifting rod set is connected to one eccentric wheel, the other end of each first lifting rod set is connected with the hemming mechanism, and the two first lifting rod sets are connected to the two opposite ends of the hemming mechanism respectively. Along with the rotation of the output shaft, the two first lifting rod groups synchronously descend so as to drive the hemming mechanism and the cup supporting mechanism to be matched to press the paper cup; or the two first lifting rod groups synchronously ascend to drive the hemming mechanism to loosen the paper cup. According to the paper cup hemming linkage device, the lifting stability of the paper cup hemming mechanism can be improved, and the paper cup hemming mechanism is prevented from inclining.

Description

Technical Field

[0001] The present application relates to the technical field of paper cup processing devices, and in particular to a paper cup curling linkage device. Background Art

[0002] In order to improve the strength and comfort of paper cups, a curling mechanism is required to curl the mouth of the paper cup. The curling mechanism is arranged above the paper cup and can be raised and lowered relative to the paper cup. Specifically, the curling mechanism can fall to a predetermined position to press the paper cup and curl the mouth of the paper cup, and after the curling operation is completed, the curling mechanism can rise to a predetermined height to release the paper cup.

[0003] In the related structure, a single cam or eccentric wheel is used to drive the paper cup curling mechanism to rise and fall, and the paper cup curling mechanism has a single force point and tilts, which may result in a poor curling effect at the cup mouth or unstable cup height. Summary of the invention

[0004] Based on this, it is necessary to provide a paper cup curling linkage device to improve the stability of the lifting and lowering of the paper cup curling mechanism and prevent the paper cup curling mechanism from tilting.

[0005] A paper cup curling linkage device, comprising a cup supporting mechanism, a curling mechanism and a driving mechanism, wherein the cup supporting mechanism is used to support a paper cup base. The curling mechanism is located above the cup supporting mechanism in the height direction and is used to curl the mouth of the paper cup. The driving mechanism comprises an output shaft, two eccentric wheels and two first lifting rod groups, wherein the two eccentric wheels are respectively fixedly sleeved on both ends of the output shaft, one end of each first lifting rod group is connected to an eccentric wheel, and the other end is connected to the curling mechanism, and the two first lifting rod groups are respectively connected to the two opposite ends of the curling mechanism, wherein as the output shaft rotates, the two first lifting rod groups are synchronously lowered to drive the curling mechanism to cooperate with the cup supporting mechanism to press the paper cup; or the two first lifting rod groups are synchronously raised to drive the curling mechanism to release the paper cup.

[0006] In one embodiment, the curling mechanism includes a plurality of curling members, the cup support mechanism includes a fixed cup support and a movable cup support, the fixed cup support has a support plane for fitting with the edge of the paper cup base, and the movable cup support has a support head for plugging with the paper cup base. It can be understood that, with such a configuration, the support head has a larger contact area with the paper cup base than the support plane, so that the paper cup can be supported more stably.

[0007] In one embodiment, the movable support cup is configured to be able to rise and fall in the height direction, and the movable support cup has a first position and a second position; in the first position, the upper end surface height of the support head is higher than the height of the supporting plane, so that the paper cup base on the support head and the paper cup base on the supporting plane are at the same height. In the second position, the upper end surface height of the support head is lower than the height of the supporting plane, so that the paper cup on the supporting plane can be translated onto the support head. It can be understood that such a configuration makes it convenient for the descending curling mechanism to curl the paper cup on the support head and the paper cup on the supporting plane respectively, and therefore, when the movable support cup is in the second position, the paper cup that has completed the first curling on the supporting plane can be translated to the top of the support head, and interference between the support head and the paper cup base can be avoided.

[0008] In one embodiment, the driving mechanism is connected to the movable supporting cup in a transmission manner and can drive the movable supporting cup to rise and fall.

[0009] In one embodiment, as the output shaft rotates, the curling member and the movable cup can be synchronously moved closer to each other, or synchronously moved away from each other. It can be understood that, in this configuration, the curling member and the corresponding movable cup are linked, so that the curling member and the movable cup can be quickly moved to press the paper cup, and the curling member and the movable cup can be quickly moved to release the paper cup.

[0010] In one embodiment, the driving mechanism further includes a cam fixedly sleeved on the output shaft; the cup support mechanism further includes a connecting rod, a first swing arm and a second swing arm, one end of the first swing arm is crimped to the top of the cam, and the other end is fixedly connected to the connecting rod; one end of the second swing arm is connected to the movable cup, and the other end is fixedly connected to the connecting rod; wherein, as the cam rotates, the first swing arm and the second swing arm swing around the axis of the connecting rod respectively, and the movable cup is lifted and lowered. The cam, the connecting rod, the first swing arm and the second swing arm can convert the rotation of the output shaft into the lifting and lowering movement of the movable cup.

[0011] In one embodiment, the cup supporting mechanism further includes a fixing seat, and the connecting rod is rotatably mounted on the fixing seat.

[0012] In one embodiment, the cup support mechanism further includes a second lifting rod, and the number of the movable cup, the second swing arm and the second lifting rod are all configured in multiples, and each movable cup is connected to a corresponding second swing arm through a second lifting rod, and is used to cooperate with a curling member to curl the paper cup; and the second lifting rod is coaxially arranged with the corresponding curling member. It can be understood that such an arrangement can prevent the paper cup from tilting.

[0013] In one embodiment, the driving mechanism further includes two mounting seats, and each first lifting rod group is detachably mounted on an eccentric wheel via a mounting seat.

[0014] In one embodiment, the driving mechanism also includes an input shaft and a housing, an arc-surface indexing cam is provided on the outer periphery of the output shaft, the output shaft is rotatably connected to the side wall of the housing, and the arc-surface indexing cam is located inside the housing, and one end of the input shaft extends into the housing and engages with the arc-surface indexing cam.

[0015] Compared with the prior art, the paper cup curling linkage device provided by the present application has two eccentric wheels that rotate synchronously with the rotation of the output shaft, thereby being able to drive the two first lifting rod groups to rise and fall synchronously. By setting up two first lifting rod groups, the curling mechanism can be driven to rise and fall more smoothly. In addition, the two first lifting rod groups are respectively connected to the two opposite ends of the curling mechanism, so that the curling mechanism is more evenly stressed and less likely to tilt. In particular, when the two first lifting rod groups descend synchronously to drive the curling mechanism and the cup supporting mechanism to cooperate in pressing the paper cup, it is helpful to avoid the tilting of the paper cup due to the tilting of the curling mechanism, thereby affecting the curling forming effect of the paper cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of the paper cup curling linkage device provided in this application;

[0018] Figure 2 A schematic structural diagram of the paper cup curling linkage device provided by the present application from another perspective;

[0019] Figure 3 A schematic diagram of the cooperation between the cup support mechanism and the cam provided in this application;

[0020] Figure 4 A schematic diagram of the cooperation between the cup support mechanism and the cam provided in this application from another perspective;

[0021] Figure 5 This is a cross-sectional view of the cup mechanism provided in the present application along the axial direction of the connecting rod.

[0022] 1. The invention relates to a paper cup roll-up linkage device; 2. a cup supporting mechanism; 3. a fixed cup supporting mechanism; 4. a supporting plane; 5. a movable cup supporting mechanism; 6. a supporting head; 7. a connecting rod; 8. a first swing arm; 9. a second swing arm; 10. a fixing seat; 11. a second lifting rod; 12. a second lifting rod; 13. a connecting rod; 14. a first swing arm; 15. a second swing arm; 16. a fixing seat; 17. a second lifting rod; 18. a curling mechanism; 19. a bracket; 20. a curling member; 21. a bracket; 23. a curling member; 30. a driving mechanism; 31. an output shaft; 311. an arc-surface indexing cam; 32. an eccentric wheel; 33. a first lifting rod group; 331. a first lifting rod; 332. a first sleeve; 34. a cam; 341. a raised portion; 342. a recessed portion; 35. a mounting seat; 351. a first plate; 352. a second plate; 353. a pin shaft; 36. an input shaft; 37. a housing; 371. a second sleeve; 200. a paper cup; 210. a base. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0028] See also Figure 1 to Figure 2 The present application provides a paper cup curling linkage device 100, which includes a cup supporting mechanism 10, a curling mechanism 20 and a driving mechanism 30. The cup supporting mechanism 10 is used to support the base 210 of the paper cup 200. The curling mechanism 20 is located above the cup supporting mechanism 10 in the height direction and is used to curl the cup mouth of the paper cup 200. The driving mechanism 30 includes an output shaft 31, two eccentric wheels 32 and two first lifting rod groups 33. The two eccentric wheels 32 are respectively fixedly sleeved on both ends of the output shaft 31. One end of each first lifting rod group 33 is connected to an eccentric wheel 32, and the other end is connected to the curling mechanism 20. The two first lifting rod groups 33 are respectively connected to the two opposite ends of the curling mechanism 20. As the output shaft 31 rotates, the two first lifting rod groups 33 descend synchronously to drive the curling mechanism 20 and the cup supporting mechanism 10 to press the paper cup; or the two first lifting rod groups 33 rise synchronously to drive the curling mechanism 20 to release the paper cup 200.

[0029] It is understandable that as the output shaft 31 rotates, the two eccentric wheels 32 rotate synchronously, thereby being able to drive the two first lifting rod groups 33 to rise and fall synchronously. By providing two first lifting rod groups 33, the curling mechanism 20 can be driven to rise and fall more smoothly. In addition, the two first lifting rod groups 33 are respectively connected to the two opposite ends of the curling mechanism 20, so that the curling mechanism 20 is more evenly stressed and less likely to tilt. In particular, when the two first lifting rod groups 33 descend synchronously to drive the curling mechanism 20 to cooperate with the cup supporting mechanism 10 to press the paper cup, it is helpful to avoid the tilt of the paper cup due to the tilt of the curling mechanism 20, thereby affecting the curling forming effect of the paper cup 200.

[0030] Alternatively, if Figure 1 As shown, each first lifting rod group 33 includes a plurality of first lifting rods 331 arranged at intervals, and the paper cup curling linkage device 100 also includes a frame, on which a plurality of first sleeves 332 are fixedly mounted, and the first sleeves 332 are arranged one by one corresponding to the first lifting rods 331, and each first lifting rod 331 is movably inserted into one of the first sleeves 332. The first sleeves 332 are used to limit the moving track of the first lifting rods 331 to prevent the first lifting rods 331 from deflecting.

[0031] like Figure 1 As shown, the driving mechanism 30 further includes two mounting seats 35, and each first lifting rod group 33 is detachably mounted on an eccentric wheel 32 via a mounting seat 35. By providing the mounting seat 35, it is convenient to mount and fix the first lifting rod group 33 to the corresponding eccentric wheel 32.

[0032] Specifically, the mounting seat 35 includes a first plate 351, a second plate 352 and a pin 353. The first lifting rod group 33 is mounted on one side of the first plate 351, and the other side is attached to and connected to the second plate 352. The second plate 352 is rotatably connected to the eccentric wheel 32 through the pin 353.

[0033] like Figure 1 As shown, the curling mechanism 20 includes a bracket 21 and a plurality of curling members 23 mounted on the bracket 21, and the cup support mechanism 10 includes a fixed cup support 11 and a movable cup support 12, the fixed cup support 11 has a supporting plane 111 for fitting with the edge of the base 210 of the paper cup 200, and the movable cup support 12 has a supporting head 121 for plugging and mating with the base 210 of the paper cup 200.

[0034] Among them, the structure and principle of the curling member 23 curling the mouth of the paper cup 200 are conventional technical means in the field, and will not be repeated here. In the process of curling the mouth of the paper cup 200 by the curling member 23, it is usually necessary to perform multiple curling operations. When the paper cup 200 is curled for the first time, the axial force applied by the curling member 23 to the paper cup 200 is greater than the axial force applied by the curling member 23 to the paper cup 200 during the subsequent second and third curling. In this embodiment, since the supporting plane 111 fits the edge of the base 210 of the paper cup 200, and the supporting head 121 is plugged into the base 210 of the paper cup 200, the contact area of ​​the supporting head 121 is larger than that of the supporting plane 111 and the base 210 of the paper cup 200, so that the paper cup 200 can be supported more stably. Thus, the fixed support cup 11 can cooperate with the corresponding curling piece 23 to perform the first curling on the rim of the paper cup 200 , and the movable support cup 12 can cooperate with the corresponding curling piece 23 to perform the second curling on the rim of the paper cup 200 .

[0035] Specifically, the support head 121 is in the shape of a truncated cone with a small upper end surface and a large lower end surface. The upper end surface of the support head 121 is used to fit with the bottom wall of the base 210 of the paper cup 200.

[0036] Furthermore, if Figure 5 As shown, the movable support cup 12 is configured to be able to rise and fall in the height direction, and the movable support cup 12 has a first position and a second position; in the first position, the upper end surface height of the support head 121 is higher than the height of the supporting plane 111, and the base 210 of the paper cup 200 on the support head 121 is at the same height as the base 210 of the paper cup 200 on the supporting plane 111; in the second position, the upper end surface height of the support head 121 is lower than the height of the supporting plane 111, so that the paper cup 200 on the supporting plane 111 can be translated onto the support head 121.

[0037] Since the movable cup 12 is in the first position, the upper end surface of the supporting head 121 is higher than the height of the supporting plane 111, and the base 210 of the paper cup 200 on the supporting head 121 and the base 210 of the paper cup 200 on the supporting plane 111 are at the same height, so the descending curling mechanism 20 can curl the paper cup on the supporting head 121 and the paper cup 200 on the supporting plane 111 respectively. In addition, since the upper end surface of the supporting head 121 is lower than the height of the supporting plane 111 when the movable cup 12 is in the second position, when the movable cup 12 is in the second position, the paper cup 200 that has completed the first curling on the supporting plane 111 can be translated to the top of the supporting head 121, and the interference between the supporting head 121 and the base 210 of the paper cup 200 can be avoided.

[0038] The driving mechanism 30 is connected to the movable support cup 12 and can drive the movable support cup 12 to rise and fall. In this way, the driving mechanism 30 can drive the crimping mechanism 20 to rise and fall, and can also drive the movable support cup 12 to rise and fall.

[0039] Furthermore, as the output shaft 31 rotates, the curling member 23 and the movable cup 12 can be synchronously moved closer to each other, or synchronously moved away from each other. In this way, the curling member 23 and the corresponding movable cup 12 are linked, so that the curling member 23 and the movable cup 12 can be quickly moved to press the paper cup 200, and can be quickly moved to release the paper cup 200.

[0040] For example, in one embodiment, Figures 1 to 4As shown, the driving mechanism 30 also includes a cam 34 fixedly sleeved on the output shaft 31. The cup support mechanism 10 also includes a connecting rod 13, a first swing arm 14 and a second swing arm 15. One end of the first swing arm 14 is crimped to the top of the cam 34, and the other end is fixedly connected to the connecting rod 13; one end of the second swing arm 15 is connected to the movable cup 12, and the other end is fixedly connected to the connecting rod 13. Among them, as the cam 34 rotates, the first swing arm 14 and the second swing arm 15 swing around the axis of the connecting rod 13 respectively, and the movable cup 12 is lifted and lowered. In this way, by setting the cam 34, the connecting rod 13, the first swing arm 14 and the second swing arm 15, the rotation of the output shaft 31 can be converted into the lifting and lowering movement of the movable cup 12.

[0041] Specifically, Figure 3 As shown, the cam 34 has a convex portion 341 and a concave portion 342 distributed circumferentially of the cam 34. When the convex portion 341 rotates to the top of the cam 34, the convex portion 341 lifts up one end of the first swing arm 14 that is pressed and matched with it, and at the same time drives the connecting rod 13 to rotate, and drives the second swing arm 15 to swing around the connecting rod 13, and the second swing arm 15 drives the movable support cup 12 to rise; when the concave portion 342 rotates to the top of the cam 34, the end of the first swing arm 14 that is pressed and matched with the concave portion 342 descends, and at the same time drives the connecting rod 13 to rotate in the opposite direction, and drives the second swing arm 15 to swing in the opposite direction around the connecting rod 13, and the second swing arm 15 drives the movable support cup 12 to descend. Among them, the end of the first swing arm 14 that is pressed and matched with the cam 34 is configured as a circular structure.

[0042] Optionally, the first swing arm 14 and the second swing arm 15 are arranged in parallel, or the first swing arm 14 and the second swing arm 15 are arranged at an angle, and the angle between the first swing arm 14 and the second swing arm 15 is adjustable. Specifically, the installation angles of the first swing arm 14 and the second swing arm 15 on the connecting rod 13 are respectively configured to be adjustable, so that the angle between the first swing arm 14 and the second swing arm 15 can be adjusted by adjusting the installation angles of the first swing arm 14 and the second swing arm 15 on the connecting rod 13 respectively.

[0043] like Figure 1 As shown, the cup support mechanism 10 further includes a fixing seat 16 , which is fixedly mounted on the frame. The connecting rod 13 is rotatably mounted on the fixing seat 16 .

[0044] like Figure 3 and Figure 4As shown, the cup support mechanism 10 further includes a second lifting rod 17, and the number of the movable cup 12, the second swing arm 15 and the second lifting rod 17 are all configured in multiples, and each movable cup 12 is connected to a corresponding second swing arm 15 through a second lifting rod 17, and is used to cooperate with a curling member 23 to curl the paper cup 200; and the second lifting rod 17 is coaxially arranged with the corresponding curling member 23. In this embodiment, each movable cup 12 is driven by a separate second lifting rod 17 and a second swing arm 15, and the second lifting rod 17 is coaxially arranged with the corresponding curling member 23, which can prevent the paper cup 200 from tilting.

[0045] For example, in one embodiment, the number of the movable support cup 12 , the second lifting rod 17 and the second swing arm 15 are all configured to be two.

[0046] like Figure 1 and Figure 2 As shown, the driving mechanism 30 further includes an input shaft 36 and a box body 37, a cambered indexing cam 311 is provided on the periphery of the output shaft 31, the output shaft 31 is rotatably connected to the side wall of the box body 37, and the cambered indexing cam 311 is located inside the box body 37, one end of the input shaft 36 extends into the box body 37 and meshes with the cambered indexing cam 311. In this way, the rotation of the input shaft 36 can drive the cambered indexing cam 311 to rotate and drive the output shaft 31 to rotate.

[0047] Furthermore, if Figure 1 As shown, a plurality of second sleeves 371 are fixedly mounted on the box body 37, and the second sleeves 371 are arranged one by one corresponding to the second lifting rods 17, and each second lifting rod 17 is movably inserted into a second sleeve 371. The second sleeve 371 is used to limit the movement track of the second lifting rod 17 to prevent the second lifting rod 17 from deflecting.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A paper cup curling linkage device, characterized in that: The paper cup curling linkage device (100) comprises: A cup supporting mechanism (10), the cup supporting mechanism (10) being used to support a base (210) of a paper cup (200); A curling mechanism (20), the curling mechanism (20) being located above the cup supporting mechanism (10) in the height direction and being used for curling the mouth of the paper cup; A driving mechanism (30), the driving mechanism (30) comprising an output shaft (31), two eccentric wheels (32) and two first lifting rod groups (33), the two eccentric wheels (32) being respectively fixedly sleeved on the two ends of the output shaft (31), one end of each of the first lifting rod groups (33) being connected to one of the eccentric wheels (32) and the other end being connected to the crimping mechanism (20), and the two first lifting rod groups (33) being respectively connected to the two opposite ends of the crimping mechanism (20); As the output shaft (31) rotates, the two first lifting rod groups (33) descend synchronously to drive the curling mechanism (20) and the cup supporting mechanism (10) to cooperate and press the paper cup; or the two first lifting rod groups (33) ascend synchronously to drive the curling mechanism (20) to release the paper cup.

2. The paper cup curling linkage device according to claim 1, characterized in that: The curling mechanism (20) comprises a plurality of curling pieces (23); the cup supporting mechanism (10) comprises a fixed cup supporting (11) and a movable cup supporting (12); the fixed cup supporting (11) comprises a supporting plane (111) for fitting with the edge of a base (210) of a paper cup (200); and the movable cup supporting (12) comprises a supporting head (121) for plugging and matching with the base (210) of the paper cup (200).

3. The paper cup curling linkage device according to claim 2, characterized in that: The movable support cup (12) is configured to be able to be raised and lowered in a height direction, and the movable support cup (12) has a first position and a second position; In the first position, the height of the upper end surface of the supporting head (121) is higher than the height of the supporting plane (111), so that the base (210) of the paper cup (200) on the supporting head (121) and the base (210) of the paper cup (200) on the supporting plane (111) are located at the same height; in the second position, the height of the upper end surface of the supporting head (121) is lower than the height of the supporting plane (111), so that the paper cup (200) on the supporting plane (111) can be translated onto the supporting head (121).

4. The paper cup curling linkage device according to claim 3, characterized in that: The driving mechanism (30) is connected to the movable support cup (12) in a transmission manner and is capable of driving the movable support cup (12) to rise and fall.

5. The paper cup curling linkage device according to claim 4, characterized in that: As the output shaft (31) rotates, the curling member (23) and the movable support cup (12) can synchronously approach each other, or synchronously move away from each other.

6. The paper cup curling linkage device according to claim 4, characterized in that: The driving mechanism (30) further comprises a cam (34) fixedly sleeved on the output shaft (31); The cup support mechanism (10) further comprises a connecting rod (13), a first swing arm (14) and a second swing arm (15); one end of the first swing arm (14) is crimped to the top end of the cam (34), and the other end is fixedly connected to the connecting rod (13); one end of the second swing arm (15) is connected to the movable cup (12), and the other end is fixedly connected to the connecting rod (13); Wherein, as the cam (34) rotates, the first swing arm (14) and the second swing arm (15) respectively swing around the axis of the connecting rod (13), and cause the movable support cup (12) to rise and fall.

7. The paper cup curling linkage device according to claim 6, characterized in that: The cup supporting mechanism (10) further comprises a fixing seat (16), and the connecting rod (13) is rotatably mounted on the fixing seat (16).

8. The paper cup curling linkage device according to claim 6, characterized in that: The cup supporting mechanism (10) further comprises a second lifting rod (17), the movable cup (12), the second swing arm (15) and the second lifting rod (17) are all configured in plural numbers, and each movable cup (12) is connected to a corresponding second swing arm (15) via a second lifting rod (17) and is used to cooperate with a curling member (23) to curl the paper cup; Furthermore, the second lifting rod (17) is coaxially arranged with the corresponding curling member (23).

9. The paper cup curling linkage device according to claim 1, characterized in that: The driving mechanism (30) further comprises two mounting seats (35), and each of the first lifting rod groups (33) is detachably mounted on a corresponding eccentric wheel (32) via one of the mounting seats (35).

10. The paper cup curling linkage device according to claim 1, characterized in that: The driving mechanism (30) further comprises an input shaft (36) and a housing (37); a cambered indexing cam (311) is disposed on the outer periphery of the output shaft (31); the output shaft (31) is rotatably connected to a side wall of the housing (37); the cambered indexing cam (311) is located inside the housing (37); one end of the input shaft (36) extends into the housing (37) and meshes with the cambered indexing cam (311).

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