Cup lug internal pressing mechanism and cup cylinder production equipment

Abstract

The utility model relates to a cup lug internal pressing mechanism and cup cylinder production equipment, the cup lug internal pressing mechanism is used for pressing a cup lug of a cup cylinder to the inner wall of the cup cylinder, the cup lug internal pressing mechanism comprises a mounting disc, a pressing part, a plurality of lug folding parts and a driving assembly, the pressing part is arranged on one side of the mounting disc in a manner of axially approaching or leaving from the mounting disc, and the lug folding parts are annularly arranged on the pressing part; the lug folding piece is rotatably mounted on the mounting disc and is provided with an abutting end which can be rotatably close to or far away from the pressing piece, the driving assembly is in driving connection with the lug folding piece so that the abutting end can be rotatably close to or far away from the pressing piece, and when the abutting end is close to the pressing piece, the abutting end abuts against the cup lug so that the cup lug can be turned over. The driving assembly is in driving connection with the pressing piece and used for pressing the folded cup lug to the inner wall of the cup cylinder. Therefore, the lug folding piece and the pressing piece are driven by the driving assembly to sequentially fold and press the cup lugs of the cup cylinder to the inner wall of the cup cylinder, a user does not need to fold the cup lugs by himself / herself, and the user can directly use the cup conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of cup ear internal pressure mechanisms, in particular to a cup ear internal pressure mechanism and a cup barrel production device. Background Art

[0002] Disposable paper cups have been widely used due to their environmental protection and low cost. However, the paper cups are relatively thin, and it is easy to frostbite or scald users when containing too cold or too hot liquids, which is inconvenient to use. Usually, the improvement solution is not to set another cup barrel outside the paper cup to slow down the heat transfer. In order to save costs, there is a kind of cup barrel that also has a plurality of cup ears at the cup mouth to increase the local thickness at the cup mouth. The cup ears are usually cut integrally with the barrel body. When users use it, they need to manually fold and press the cup ears into the barrel, which is cumbersome and inefficient, and it is easy to damage the barrel body when folding, resulting in unnecessary waste. Summary of the Utility Model

[0003] Based on the problem that the existing cup barrel is easy to damage the barrel body due to the need for manual folding of the cup ears, it is necessary to provide a cup ear internal pressure mechanism and a paper cup production device.

[0004] A cup ear internal pressure mechanism for pressing the cup ears of a cup barrel to the inner wall of the cup barrel, comprising:

[0005] A mounting disk;

[0006] A pressing member, which is axially movably arranged on one side of the mounting disk;

[0007] A plurality of ear folding members arranged around the pressing member, the ear folding members are rotatably mounted on the mounting disk and have a pressing end for radially pressing the cup ear; and

[0008] A driving assembly, the driving assembly is drivingly connected to the ear folding member to make the pressing end rotate close to or away from the pressing member, for radially pressing the cup ear to make the cup ear fold inward when the pressing end approaches the pressing member, the driving assembly is drivingly connected to the pressing member to make the pressing member approach or away from the mounting disk, for axially pressing the folded cup ear to press the cup ear to the inner wall of the cup barrel when the pressing member is away from the mounting disk.

[0009] With such a setting, the ear folding member and the pressing member sequentially fold and press the cup ears of the cup barrel to the inner wall of the cup barrel under the drive of the driving assembly, without the need for users to fold them by themselves, which is convenient for users to directly use. The plurality of ear folding members are arranged around the pressing member, so that the pressing member can press the cup ears folded by the ear folding members smoothly. The cooperation between the ear folding member and the pressing member is tight, which is beneficial to improving the quality of the cup barrel forming.

[0010] In one embodiment, the mounting plate includes a plate body and a plurality of rotating shafts mounted on the plate body, the rotating shafts extend along the circumference of the plate body, and the folding ear members are rotatably sleeved on the rotating shafts.

[0011] With such arrangement, the rotating shaft limits the rotation direction of the folding ear member, which can prevent the rotation path of the folding ear member from deviating, and ensure that the cup ears of the cup tube are folded toward the center of the cup tube, which is beneficial to improving the molding quality of the cup tube.

[0012] In one embodiment, the folding ear member further has a first connecting end and a second connecting end which are arranged in a triangle with the pressing end, the first connecting end is rotatably connected to the mounting plate, and the second connecting end is rotatably connected to the driving assembly.

[0013] With such arrangement, during the rotation of the folding ear member, when the pressing end just abuts against the cup ear of the cup tube, the distance between the second connecting end and the central axis of the mounting disk is greater than the diameter of the cup tube, that is, the second connecting end does not need to be rotated into the cup tube, thereby reducing the rotation angle of the folding ear member, further reducing the driving stroke of the driving assembly, and facilitating production speed-up. Since the stroke required for the driving assembly is smaller, a more economical driving member can be used, which is beneficial to saving production costs.

[0014] In one of the embodiments, the pressing piece is provided with a recess for accommodating the folding ear piece.

[0015] With such arrangement, the pressing part will not be hindered by the folding ear part during axial movement. After the folding ear part folds the cup ear of the cup tube, the pressing part can directly abut the bent cup ear to prevent the cup ear from rebounding without having to wait for the folding ear part to reverse and exit, which is beneficial to avoid the rebound of the cup ear affecting the forming quality of the cup tube.

[0016] In one embodiment, the driving assembly includes a synchronous member connected to the plurality of folding ear members, a first driving member drivingly connected to the synchronous member, and a second driving member drivingly connected to the pressing member.

[0017] With such arrangement, the synchronous member drives the multiple ear folding members to fold the cup ears synchronously, ensuring that the force on the cup tube is balanced when the multiple cup ears are folded, which is beneficial to ensuring the flatness of the cup mouth of the cup tube on the cup ear side.

[0018] In one embodiment, the synchronizing member includes a guide cylinder mounted on the mounting plate, a sliding sleeve slidably mounted on the guide cylinder, and a plurality of first transmission rods arranged around the sliding sleeve, and both ends of the first transmission rod are rotatably connected to the sliding sleeve and the folding ear member, respectively.

[0019] With such arrangement, the guide cylinder guides the sliding sleeve to slide, ensuring that the sliding sleeve applies the same pressing force to the folding ear member through the first transmission rod, thereby achieving the consistency of the rotation of the plurality of folding ear members.

[0020] In one embodiment, the second driving member includes a second transmission rod slidably passing through the guiding cylinder and the mounting disc, and a second driving cylinder drivingly connected to one end of the second transmission rod, and the other end of the second transmission rod is fixedly connected to the pressing member.

[0021] With such a setting, since the first transmission rod passes through the mounting disc, the first driving member and the second driving member can be axially stacked, which is beneficial to further reduce the occupied space of the driving assembly and improve the integration degree of the driving assembly.

[0022] In one embodiment, an adjustment window is formed in the peripheral wall of the guiding cylinder. The sliding sleeve includes a sleeve body sleeved on the second transmission rod and a plurality of extending bodies extending from the sleeve body and passing through the adjustment window. The first transmission rod is rotatably connected to the extending bodies. The first driving member includes a first driving cylinder and a first driving rod fixedly connected to the sleeve body, and the first driving cylinder is drivingly connected to the first driving rod.

[0023] With such a setting, in this embodiment, the second transmission rod is used as the sliding track of the sliding sleeve, and the first driving rod of the first driving member can directly drive the sliding sleeve to move synchronously, so as to drive the folding ear member to move synchronously, which is convenient for adjusting the rotation angle of the folding ear member.

[0024] In one embodiment, the sliding sleeve is sleeved on the guiding cylinder. The first driving member includes a return spring sleeved on the guiding cylinder and a driving seat for pressing the sliding sleeve towards the mounting disc, and two ends of the return spring respectively abut against the mounting disc and the sliding sleeve.

[0025] With such a setting, in this embodiment, the guiding cylinder is used as the sliding track of the sliding sleeve, and the folding ear member is realized to rotate and reset by means of the return spring, and the driving seat does not have to be fixedly connected to the sliding sleeve, which facilitates disassembly, assembly and maintenance.

[0026] The present application also provides a cup barrel production device, including:

[0027] A mounting platform; and

[0028] The cup ear internal pressure mechanism as described above, and the driving assembly of the cup ear internal pressure mechanism is fixedly connected to the mounting platform.

[0029] With such a setting, since the cup ear internal pressure mechanism provided by the present application only uses one station to complete the folding and pressing of the cup ear, it saves space and is beneficial to the miniaturization of the cup barrel production device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of a cup barrel related to the present application;

[0031] Figure 2 Schematic structural diagram of a cup barrel production device in an embodiment of the present application;

[0032] Figure 3 is Figure 2 Cross-sectional view of the shown cup barrel production device in the A-A direction;

[0033] Figure 4 is Figure 2 Schematic structural diagram of the mounting plate, pressing member, ear folding member and synchronizing member in;

[0034] Figure 5 Schematic structural diagram of an inner ear pressing mechanism of a cup ear in another embodiment of the present application;

[0035] Figure 6 is Figure 5 Cross-sectional view of the shown inner ear pressing mechanism in the B-B direction.

[0036] Reference numerals:

[0037] 1P, barrel body; 2P, upper cup ear; 3P, lower cup ear; 10, mounting plate; 11, disk body; 12, rotating shaft; 20, ear folding member; 21, first connection end; 22, second connection end; 23, pressing end; 231, pressing plane; 30, pressing member; 31, relief groove; 40, driving assembly; 41, first driving member; 411, driving seat; 4111, mounting plate; 4112, support column; 4113, pressing rod; 412, return spring; 413, first driving cylinder; 4131, first driving rod; 414, synchronizing disk; 415, third transmission rod; 42, second driving member; 421, mounting seat; 422, second driving cylinder; 4221, second driving rod; 423, second transmission rod; 4231, first transmission part; 4232, second transmission part; 43, synchronizing member; 431, guiding cylinder; 4311, adjusting window; 4312, stop step; 432, sliding sleeve; 4321, sleeve body; 4322, extension body; 433, first transmission rod; 44, fixed seat; 441, fixing plate; 442, fixing column; 45, first copper sleeve; 46, second copper sleeve; 50, mounting platform; 51, platform plate; 60, cup bottom pre-folding mechanism; 61, pre-folding cylinder; 611, convex block; 612, arc surface; 62, third driving member; 70, glue spraying mechanism. Detailed implementation manners

[0038] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following describes the specific embodiments of the present utility model in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present utility model.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0041] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0044] Disposable paper cups have been widely used due to their environmental protection and low cost characteristics. However, the thickness of the paper cup is relatively thin, and it is easy to frostbite or scald users when containing too cold or too hot liquids, which is inconvenient to use. The usual improvement solutions do not provide for sleeving another cup holder outside the paper cup to slow down the heat transfer. In order to save costs, there is a type of cup holder that also has a plurality of cup ears at the cup mouth to increase the local thickness at the cup mouth. As Figure 1 shown, Figure 1 is a schematic structural diagram of a cup holder related to the present application. The cup ear is usually integrally cut from the barrel body 1P. The cup holder is provided with cup ears at its end. When the user uses it, the cup ear needs to be manually folded and pressed into the barrel, which is cumbersome and inefficient, and it is easy to damage the barrel body 1P when folding, causing unnecessary waste.

[0045] Based on this, it is necessary to provide a cup ear inner pressing mechanism and a cup holder production device that can automatically fold the cup ears of the cup holder.

[0046] Please refer to Figures 2 to 4 , Figure 2 which is a schematic structural diagram of a cup holder production device in an embodiment of the present application, Figure 3 is Figure 2The cross-sectional view of the cup barrel production equipment shown in the A-A direction. A cup barrel production equipment provided by the present application specifically includes an installation platform 50 and a cup ear inner pressing mechanism, a glue spraying mechanism 70, a cup bottom pre-folding mechanism 60 and a cup bottom forming mechanism installed on the installation platform 50. The installation platform 50 includes two layers of platform plates 51. The driving assembly 40 of the cup ear inner pressing mechanism is installed on the upper platform plate 51, and the cup bottom pre-folding mechanism 60, the cup bottom forming mechanism (not shown in the figure) and the glue spraying mechanism 70 are installed on the lower platform plate 51 (not shown in the figure). Specifically, the glue spraying mechanism 70 is used to spray glue on the lower cup ear 3P of the cup barrel. The cup bottom pre-folding mechanism 60 includes a pre-folding cylinder 61 and a third driving member 62 drivingly connected to the pre-folding cylinder 61. A convex block 611 is provided at the center of the bottom of the pre-folding cylinder 61. An arc surface 612 is provided between the arc-shaped protrusion and the inner wall of the pre-folding cylinder 61 to guide the lower cup ear 3P of the cup barrel to be bent along the arc surface 612. The cup bottom forming mechanism is used to press the lower cup ear 3P bent by the cup bottom pre-folding mechanism 60 against the inner wall of the cup barrel.

[0047] Please refer to Figure 4 , Figure 4 for Figure 2 the structural schematic diagram of the mounting disc 10, the pressing member 30, the ear folding member 20 and the synchronizing member 43 in

[0048] The cup ear inner pressing mechanism involved in the present application includes a mounting disc 10, a pressing member 30, a plurality of ear folding members 20 and a driving assembly 40. The pressing member 30 is located below the mounting disc 10 and can axially approach or move away from the mounting disc 10. The plurality of ear folding members 20 are arranged around the pressing member 30. The ear folding member 20 is rotatably installed on the mounting disc 10 and has a pressing end 23 for radially pressing the cup ear. The pressing end 23 approaches or moves away from the pressing member 30 as the ear folding member 20 rotates. The driving assembly 40 includes a first driving member 41 and a second driving member 42. The first driving member 41 is drivingly connected to the ear folding member 20 to make the pressing end 23 rotate closer to or away from the pressing member 30. When the pressing end 23 approaches the pressing member 30, the pressing end 23 presses the cup ear to turn the cup ear inward. The second driving member 42 is drivingly connected to the pressing member 30 to make the pressing member 30 approach or move away from the mounting disc, and is used to press the folded cup ear against the inner wall of the cup barrel when the pressing member 30 moves away from the mounting disc 10. Under the driving action of the two driving members, the ear folding member 20 and the pressing member 30 can successively turn over and press the cup ear of the cup barrel against the inner wall of the cup barrel, without the user folding it by himself, which is convenient for the user to directly use the formed cup barrel. In addition, the cooperation between the ear folding member 20 and the pressing member 30 is tight, and there is no need to process the cup ear in two stations, which is beneficial to improving the quality of cup barrel forming. Further, the pressing end 23 is provided with a pressing plane 231 (as shown in Figure 2 ), so as to reduce the large deformation of the cup ear caused by excessive local pressure.

[0049] Optionally, in an embodiment provided in the present application, the mounting plate 10 includes a plate body 11 and a plurality of rotating shafts 12 mounted on the plate body 11, and the folding ear member 20 is rotatably sleeved on the rotating shaft 12. Specifically, the plate body 11 is provided with a plurality of mounting grooves extending in the axial direction, and the rotating shaft 12 is located in the mounting grooves and fixedly connected to the plate body 11. The rotating shaft 12 limits the rotation direction of the folding ear member 20, which can prevent the rotation path of the folding ear member 20 from being offset, ensuring that the upper cup ear 2P of the cup barrel faces the center of the cup barrel and folds along a preset direction, which is beneficial to improving the molding quality of the cup barrel.

[0050] Optionally, in an embodiment provided in the present application, the folding ear member 20 further has a first connection end 21 and a second connection end 22 arranged in a triangle with the pressing end 23, the first connection end 21 is rotatably connected to the mounting plate 10, and the second connection end 22 is rotatably connected to the driving assembly 40. Specifically, the folding ear member 20 is triangular in shape, and the second connection end 22 is located on the side of the folding ear member 20 away from the pressing member 30. During the rotation of the folding ear member 20, when the pressing end 23 just abuts against the cup ear of the cup barrel, the distance between the second connection end 22 and the central axis of the mounting plate 10 is greater than the diameter of the cup barrel, that is, the second connection end 22 does not need to rotate into the cup barrel, thereby reducing the rotation angle of the folding ear member 20, further reducing the driving stroke of the driving assembly 40, and facilitating the production speed-up. Since the required stroke of the driving assembly 40 is smaller, a more economical driving member can be used, which is conducive to saving production costs. Furthermore, the folding ear member 20 , the pressing member 30 and the mounting plate 10 are all provided with a plurality of holes for reducing weight, which also helps to reduce the load of the driving assembly 40 .

[0051] Optionally, in an embodiment provided in the present application, the pressing member 30 is provided with a clearance groove 31 for accommodating the folding ear member 20. The setting of the clearance groove 31 ensures that the pressing member 30 will not be hindered by the folding ear member 20 when moving axially. When the folding ear member 20 folds the cup ear of the cup tube, the pressing member 30 can directly abut against the folded cup ear to prevent the cup ear from rebounding without waiting for the folding ear member 20 to reverse and exit, which is conducive to preventing the cup ear rebound from affecting the forming quality of the cup tube.

[0052] Furthermore, the driving assembly 40 includes a synchronizing member 43 connected to a plurality of folding ears 20, a first driving member 41 drivingly connected to the synchronizing member 43, and a second driving member 42 drivingly connected to the pressing member 30. The synchronizing member 43 drives the plurality of folding ears 20 to turn over synchronously, ensuring that the cup barrel is balanced in force when the plurality of cup ears are turned over, which is beneficial to ensuring the flatness of the cup mouth on the cup ear side of the cup barrel. Specifically, the synchronizing member 43 includes a guiding cylinder 431 installed on the mounting plate 10, a sliding sleeve 432 slidably installed in the guiding cylinder 431, and a plurality of first transmission rods 433 disposed around the sliding sleeve 432. Both ends of the first transmission rod 433 are rotatably connected to the sliding sleeve 432 and the folding ear respectively. The guiding cylinder 431 guides the sliding of the sliding sleeve 432, ensuring that the sliding sleeve 432 applies the same pressing force to the folding ear member 20 through the first transmission rod 433, thereby realizing the consistency of the rotation of the plurality of folding ear members 20. Preferably, the first transmission rod 433 is rotatably connected to the second connection end 22 of the folding ear member 20. Since the first connection end 21, the second connection end 22, and the pressing end 23 are arranged in a triangle, during the rotation of the folding ear member 20, the second connection end 22 will not rotate to the side where the first connection end 21 is close to the central axis of the mounting plate 10. That is to say, when the first transmission rod 433 rises upward, the pressing end 23 of the folding ear member 20 can rotate away from the pressing member 30 instead of approaching or even pressing against the pressing member 30, thereby avoiding jamming when the folding ear member 20 rotates back.

[0053] Please refer to Figure 2 and Figure 4 Optionally, in an embodiment provided by the present application, the second driving member 42 includes a second transmission rod 423 and a second driving cylinder 422. The second transmission rod 423 is slidably disposed through the guiding cylinder 431 and the mounting plate 10. One end of the second driving member 42 is drivingly connected to the second transmission rod 423, and the other end of the second transmission rod 423 is fixedly connected to the pressing member 30. Since the first transmission rod 433 is disposed through the mounting plate 10, the first driving member 41 and the second driving member 42 can be axially stacked, which is beneficial to further reducing the occupied space of the driving assembly 40 and improving the integration degree of the driving assembly 40.

[0054] This application relates to two main embodiments. The first embodiment is as Figure 2 and Figure 3 shown, and the second embodiment is as Figure 5 and Figure 6 shown. Figure 5 Schematic structural diagram of the inner pressure mechanism of the cup ear in another embodiment of the present application. Figure 6 is Figure 5 The cross-sectional view of the inner pressure mechanism of the cup ear in the B-B direction shown in the figure.

[0055] Please refer to Figure 2 and Figure 3, in the first embodiment, an adjustment window 4311 is formed in the peripheral wall of the guide cylinder 431. The sliding sleeve 432 includes a sleeve body 4321 and an extension body 4322 extending from the sleeve body 4321. The sleeve body 4321 is sleeved on the second transmission rod 423, the first transmission rod 433 is rotatably connected to the extension body 4322, the first driving cylinder 413 is drivingly connected to the first driving rod 4131, and the extension body 4322 passes through the adjustment window 4311. Specifically, the driving assembly 40 further includes a fixed seat 44. The fixed seat 44 includes two fixing plates 441 arranged at intervals in the vertical direction and a plurality of fixing columns 442 connecting the two fixing plates 441. The first driving member 41 includes a first driving cylinder 413 fixedly connected to the upper fixing plate 441, a synchronous disk 414 located between the two fixing plates 441, and a plurality of third transmission rods 415 fixedly connected to the synchronous disk 414. The third transmission rod 415 is fixedly connected to the sliding sleeve 432 of the synchronizing member 43. The second driving member 42 is a second driving cylinder 422 fixedly connected to the lower mounting plate 4111. The second transmission rod 423 includes a first transmission portion 4231 located inside the guide cylinder 431 and a second transmission portion 4232 inserted into the guide cylinder 431 at one end and connecting the first transmission portion 4231. The first transmission portion 4231 is connected to the second driving rod 4221 of the second driving cylinder 422 by bolts. The second transmission portion 4232 also passes through the mounting disk 10 and is fixedly connected to the pressing member 30 below the mounting disk 10. In this embodiment, the second transmission rod 423 is used as the sliding track of the sliding sleeve 432. The first driving rod 4131 of the first driving member 41 can directly drive the sliding sleeve 432 to move synchronously, thereby driving the folding ear member 20 to move synchronously, which is convenient for adjusting the rotation angle of the folding ear member 20.

[0056] Optionally, in the first embodiment, a stop step 4312 is provided on the inner wall of the guide cylinder 431 near the mounting disk 10. The first transmission portion 4231 and the second transmission portion 4232 are connected by a flange, and the flange is used to axially abut against the stop step 4312. The stop step 4312 limits the second transmission rod 423, which can prevent the second transmission rod 423 from accidentally falling off and also facilitates assembly. Further, in order to reduce the shaking problem when the second transmission rod 423 and the sliding sleeve 432 slide vertically, a first copper sleeve 45 and a second copper sleeve 46 are respectively attached to the inner and outer sides of the sliding sleeve 432. The first copper sleeve 45 abuts against the first transmission portion 4231 of the second transmission rod 423, and the second copper sleeve 46 abuts against the inner side wall of the guide cylinder 431.

[0057] Please refer to Figure 5 and Figure 6, in the second embodiment, the sliding sleeve 432 is sleeved on the guiding cylinder 431. The first driving member 41 includes a driving seat 411 and a return spring 412 sleeved on the guiding cylinder 431. Two ends of the return spring 412 respectively abut against the mounting plate 10 and the sliding sleeve 432. Specifically, the driving seat 411 includes two mounting plates 4111 arranged at intervals in the vertical direction and a plurality of support columns 4112 connecting the two mounting plates 4111. Corresponding holes for the guiding cylinder 431 to pass through are respectively formed in the upper and lower mounting plates 4111. A plurality of pressing rods 4113 are further mounted on the upper mounting plate 4111. When the driving seat 411 moves in the vertical direction, the pressing rods 4113 can press the sliding sleeve 432 to drive the lower folding ear member 20 to rotate through the first transmission rod 433. The second driving member 42 includes a mounting seat 421 fixedly connected to the mounting platform 50 and a second driving cylinder 422 mounted on the mounting seat 421. A second driving rod 4221 of the second driving cylinder 422 is fixedly connected to a second transmission rod 423 to drive the pressing member 30 below the mounting plate 10 to move. The guiding cylinder 431 is fixedly connected to a platform plate 51 of the mounting platform 50. In this embodiment, the guiding cylinder 431 is used as the sliding track of the sliding sleeve 432, and the folding ear member 20 is rotated and reset by means of the return spring 412. The driving seat 411 does not need to be fixedly connected to the sliding sleeve 432, which facilitates disassembly, assembly and maintenance.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope described in this specification.

[0059] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A cup ear internal pressure mechanism, used to press the cup ear of a cup tube to the inner wall of the cup tube, characterized in that: include: Mounting plate (10); A pressing piece (30), the pressing piece (30) being axially movably arranged on one side of the mounting plate (10); A plurality of folding ear pieces (20) are arranged around the pressing piece (30), the folding ear pieces (20) are rotatably mounted on the mounting plate (10) and have pressing ends (23) for radially pressing the cup ears; as well as A driving assembly (40), wherein the driving assembly (40) is drivingly connected to the folding ear member (20) so that the pressing end (23) rotates toward or away from the pressing member (30), and is used to radially press the cup ear when the pressing end (23) approaches the pressing member (30) so that the cup ear is folded inwardly; the driving assembly (40) is drivingly connected to the pressing member (30) so that the pressing member (30) approaches or away from the mounting plate (10), and is used to axially press the folded cup ear when the pressing member (30) is away from the mounting plate (10) so that the cup ear is pressed onto the inner wall of the cup tube.

2. The cup ear internal pressure mechanism according to claim 1, characterized in that: The mounting plate (10) comprises a plate body (11) and a plurality of rotating shafts (12) mounted on the plate body (11); the rotating shafts (12) extend along the circumference of the plate body (11); and the folding ear pieces (20) are rotatably sleeved on the rotating shafts (12).

3. The cup ear internal pressure mechanism according to claim 1, characterized in that: The folding ear member (20) further comprises a first connecting end (21) and a second connecting end (22) which are arranged in a triangle with the pressing end (23); the first connecting end (21) is rotatably connected to the mounting plate (10), and the second connecting end (22) is rotatably connected to the driving assembly (40).

4. The cup ear internal pressure mechanism according to claim 1, characterized in that: The pressing piece (30) is provided with a clearance groove (31) for accommodating the folding ear piece (20).

5. The cup ear internal pressure mechanism according to any one of claims 1 to 4, characterized in that: The driving assembly (40) comprises a synchronous member (43) connected to the plurality of folding ear members (20), a first driving member (41) drivingly connected to the synchronous member (43), and a second driving member (42) drivingly connected to the pressing member (30).

6. The cup ear internal pressure mechanism according to claim 5, characterized in that: The synchronous member (43) comprises a guide cylinder (431) mounted on the mounting plate (10), a sliding sleeve (432) slidably mounted on the guide cylinder (431), and a plurality of first transmission rods (433) arranged around the sliding sleeve (432), wherein the two ends of the first transmission rods (433) are rotatably connected to the sliding sleeve (432) and the folding ear member (20), respectively.

7. The cup ear internal pressure mechanism according to claim 6, characterized in that: The second driving member (42) comprises a second transmission rod (423) slidably inserted into the guide cylinder (431) and the mounting plate (10) and a second driving cylinder (422) drivingly connected to one end of the second transmission rod (423); the other end of the second transmission rod (423) is fixedly connected to the pressing member (30).

8. The cup ear internal pressure mechanism according to claim 7, characterized in that: The peripheral wall of the guide cylinder (431) is provided with an adjustment window (4311), the sliding sleeve (432) comprises a sleeve body (4321) sleeved on the second transmission rod (423) and a plurality of extension bodies (4322) extending from the sleeve body (4321) and passing through the adjustment window (4311), the first transmission rod (433) is rotatably connected to the extension body (4322), the first driving member (41) comprises a first driving cylinder (413) and a first driving rod (4131) fixedly connected to the sleeve body (4321), and the first driving cylinder (413) is drivingly connected to the first driving rod (4131).

9. The cup ear internal pressure mechanism according to claim 7, characterized in that: The sliding sleeve (432) is sleeved on the guide cylinder (431), and the first driving member (41) comprises a return spring (412) sleeved on the guide cylinder (431) and a driving seat (411) for pressing the sliding sleeve (432) toward the mounting plate (10), and two ends of the return spring (412) are respectively in contact with the mounting plate (10) and the sliding sleeve (432).

10. A cup tube production equipment, characterized in that: include: Mounting platform (50); and According to any one of claims 1 to 9, the driving assembly (40) of the cup ear internal pressure mechanism is fixedly connected to the mounting platform (50).

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