Transmission structure of paper cup bottom rolling device

Abstract

The utility model belongs to the field of paper cup machines, and provides a paper cup bottom rolling device transmission structure which comprises a driving shaft, a flange sleeve and a bearing. Wherein the driving shaft forms a plane area and an arc-shaped area which are connected in the circumferential direction of the driving shaft; a through hole for the driving shaft to penetrate through is formed in the flange sleeve, the cross section shape of the through hole in the axial direction is matched with the cross section shape of the driving shaft in the axial direction, and the driving shaft is movably connected with the flange sleeve through the through hole and can move relative to the flange sleeve in the axial direction of the driving shaft. And the bearing is sleeved on the flange sleeve and is coaxial with the driving shaft.

Description

Technical Field

[0001] This application belongs to the field of paper cup machines, and particularly relates to a transmission structure of a paper cup bottom rolling device. Background Art

[0002] In the paper cup production industry, the bottom rolling device is a crucial part. It is responsible for rolling and forming the bottom of the paper cup and ensuring that the paper cup has a certain structural strength and sealing performance.

[0003] However, in the traditional transmission structure of the paper cup bottom rolling device, since the drive shaft is usually designed to be able to rotate around its own central axis to transmit power to the bottom rolling pressure wheel to make the bottom rolling pressure wheel revolve, and also be able to move along its own axial direction to translate the bottom rolling pressure wheel so that the bottom rolling pressure wheel cooperates with the bottom rolling outer mold during revolution to complete the rolling of the cup bottom. The design of the drive shaft and the flange sleeve supporting it in the prior art is unreasonable, which easily leads to early wear of the flange sleeve. After long-term wear, the flange sleeve will not only affect the accuracy and stability of the transmission system, but may also cause the drive shaft to jam or deviate during movement, thereby affecting the rolling quality of the paper cup. Therefore, it is necessary to solve the above technical problems. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a transmission structure of a paper cup bottom rolling device to solve the technical problem of poor running stability of the paper cup bottom rolling device in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by this application is: to provide a transmission structure of a paper cup bottom rolling device, including a drive shaft, a flange sleeve, and a bearing, wherein:

[0006] The drive shaft forms a connected planar region and an arc region in its own circumferential direction;

[0007] The flange sleeve forms a through hole for the drive shaft to pass through. The cross-sectional shape of the through hole in the axial direction is adapted to the cross-sectional shape of the drive shaft in the axial direction. The drive shaft is movably connected to the flange sleeve through the through hole and can move relative to the flange sleeve along its own axial direction;

[0008] The bearing is sleeved on the flange sleeve and is coaxially arranged with the drive shaft.

[0009] Optionally, at least two of the planar regions are arranged at intervals along the circumferential direction of the drive shaft.

[0010] Optionally, several of the planar regions are symmetrically arranged about the central axis of the drive shaft.

[0011] Optionally, the bearing is a thrust bearing.

[0012] Optionally, an external thread coaxial with the drive shaft is formed on the surface of the drive shaft;

[0013] The transmission structure of the paper cup bottom rolling device further includes a clamping groove sleeve that is threadedly connected to the drive shaft through the external thread and is used to drive the drive shaft to move, a locking ring that is threadedly connected to the drive shaft through the external thread, and a bolt that is threadedly connected to the locking ring;

[0014] The bolt is parallel to the drive shaft and passes through the locking ring to abut against the clamping groove sleeve.

[0015] Optionally, the transmission structure of the paper cup bottom rolling device further includes a nut that is threadedly connected to the bolt and abuts against the locking ring.

[0016] Optionally, a plurality of pry holes are formed on the clamping groove sleeve and are arranged around the drive shaft, and the pry holes extend along the radial direction of the drive shaft.

[0017] Optionally, a counterbore adapted to the bolt is formed on the clamping groove sleeve, and the clamping groove sleeve is detachably connected to the bolt through the counterbore.

[0018] Optionally, a plurality of bolts are arranged at intervals around the central axis of the drive shaft.

[0019] The beneficial effect of the transmission structure of the paper cup bottom rolling device provided by this application is that: compared with the prior art, in the transmission structure of the paper cup bottom rolling device provided by this application, since the drive shaft forms a connected planar area and an arc area on its own circumference and movably passes through the through hole on the flange sleeve adapted to the drive shaft, and since a bearing coaxial with the drive shaft and capable of supporting the rotation of the flange sleeve is sleeved on the flange sleeve, the drive shaft can drive the flange sleeve to rotate during the process of rotating around its own central axis rather than rotating relative to the flange sleeve. This makes it possible that there is only friction along the axial direction of the drive shaft between the drive shaft and the flange sleeve and no friction along the circumferential direction of the drive shaft, thereby effectively avoiding the wear of the flange sleeve and significantly improving the running stability of the paper cup bottom rolling device in this application, far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is an exploded structural schematic diagram of the transmission structure of the paper cup bottom rolling device provided by the embodiment of this application;

[0022] Figure 2 It is a connection state schematic diagram of the transmission structure of the paper cup bottom rolling device provided by the embodiment of this application.

[0023] Among them, the reference numerals in the figures are as follows: 101, drive shaft; 102, planar region; 103, arc region; 104, flange sleeve; 105, through hole; 106, bearing; 107, external thread; 108, groove sleeve; 109, locking ring; 110, bolt; 111, nut; 112, pry hole; 113, counterbore; 114, push seat; 115, roller; 116, annular groove. Specific embodiments

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the following further details this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0025] 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 indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0028] Please refer to Figure 1 and Figure 2 to describe a transmission structure of a paper cup bottom rolling device provided by an embodiment of this application. The transmission structure of this paper cup bottom rolling device includes a drive shaft 101, a flange sleeve 104 and a bearing 106. Among them:

[0029] The drive shaft 101 forms a connected planar region 102 and an arc-shaped region 103 in its own circumferential direction; the flange sleeve 104 forms a through hole 105 for the drive shaft 101 to pass through. The cross-sectional shape of the through hole 105 in the axial direction is adapted to the cross-sectional shape of the drive shaft 101 in the axial direction. The drive shaft 101 is movably connected to the flange sleeve 104 through the through hole 105 and can move relative to the flange sleeve 104 along its own axial direction; the bearing 106 is sleeved on the flange sleeve 104 and is coaxially arranged with the drive shaft 101.

[0030] According to the above structure provided in this embodiment, in the transmission structure of the paper cup bottom rolling device provided in this embodiment, since the drive shaft 101 forms a connected planar region 102 and an arc-shaped region 103 in its own circumferential direction and movably passes through the through hole 105 on the flange sleeve 104 adapted to the drive shaft 101, and since the bearing 106 that is coaxially arranged with the drive shaft 101 and can support the rotation of the flange sleeve 104 is sleeved on the flange sleeve 104, the drive shaft 101 can drive the flange sleeve 104 to rotate during the process of rotating around its own central axis instead of rotating relative to the flange sleeve 104. This enables only the frictional force along the axial direction of the drive shaft 101 to be generated between the drive shaft 101 and the flange sleeve 104, and no frictional force along the circumferential direction of the drive shaft 101 will be formed. Thereby, it can effectively avoid the wear of the flange sleeve 104 and significantly improve the running stability of the paper cup bottom rolling device in this embodiment, far superior to the prior art.

[0031] In the above structure provided in this application, please refer to Figure 1 and Figure 2 , at least two planar regions 102 are arranged at intervals along the circumferential direction of the drive shaft 101. According to the above structure provided in this embodiment, by arranging a plurality of planar regions 102, the through hole 105 on the flange sleeve 104 adapted to the drive shaft 101 can have a plurality of planar portions. This is beneficial to significantly increasing the wall thickness of the flange sleeve 104 and improving the structural strength of the flange sleeve 104, and thereby is also beneficial to further improving the running stability of the paper cup bottom rolling device in this embodiment.

[0032] In the above structure provided in this application, please refer to Figure 1 and Figure 2 , several planar regions 102 are symmetrically arranged about the central axis of the drive shaft 101. According to the above structure provided in this embodiment, the symmetry of the planar region 102 about the drive shaft 101 can effectively improve the force uniformity of the flange sleeve 104, and this is also beneficial to further improving the running stability of the paper cup bottom rolling device in this embodiment.

[0033] In the above structure provided in this application, please refer to Figure 1 and Figure 2, the bearing 106 is a thrust bearing. According to the above structure provided in this embodiment, the thrust bearing coaxially arranged with the drive shaft 101 can stably bear the axial load from the drive shaft 101, which is beneficial to further improving the running stability of the paper cup bottom rolling device in this embodiment.

[0034] In the above structure provided by this application, please refer to Figure 1 and Figure 2 , an external thread 107 coaxial with the drive shaft 101 is formed on the surface of the drive shaft 101; the transmission structure of the paper cup bottom rolling device further includes a clamping groove sleeve 108 that is threadedly connected to the drive shaft 101 through the external thread 107 and is used to drive the drive shaft 101 to move, a locking ring 109 that is threadedly connected to the drive shaft 101 through the external thread 107, and a bolt 110 that is threadedly connected to the locking ring 109. Generally, a ring groove 116 is formed on the clamping groove sleeve 108, and this ring groove 116 is used to accommodate a roller 115 installed on the pushing seat 114. The pushing seat 114 is used to be in transmission connection with an external linear power source, so as to drive the drive shaft 101 to move axially through the roller 115 by the clamping groove sleeve 108; the bolt 110 is parallel to the drive shaft 101 and passes through the locking ring 109 to abut against the clamping groove sleeve 108. According to the above structure provided in this embodiment, the bolt 110 parallel to the drive shaft 101 can adjust the tightening force between it and the clamping groove sleeve 108 during the process of rotating relative to the locking ring 109. When the clamping groove sleeve 108 is installed in place, the bolt 110 can be rotated to abut against the clamping groove sleeve 108 so that the clamping groove sleeve 108 and the locking ring 109 bear a large axial acting force along the drive shaft 101. Since this acting force is equal in magnitude and opposite in direction on the clamping groove sleeve 108 and the locking ring 109, the internal threads of the clamping groove sleeve 108 and the locking ring 109 tightly abut against the threads of the external thread 107, and then the positions of the two on the drive shaft 101 are locked. This is beneficial to significantly improving the position stability of the clamping groove sleeve 108 in the axial direction of the drive shaft 101 and has a good anti-loosening effect. That is, when the external power source drives the drive shaft 101 to move axially through the pushing seat 114, the clamping groove sleeve 108 will always maintain a stable position relative to the drive shaft 101, further improving the running reliability of the paper cup bottom rolling device in this embodiment.

[0035] In the above structure provided by this application, please refer to Figure 1 and Figure 2, the transmission structure of the paper cup bottom rolling device further includes a nut 111 threadedly connected to the bolt 110 and abutted against the locking ring 109. According to the above structure provided in this embodiment, after the nut 111 connected to the bolt 110 is adjusted to the in-place position at the position of the slot sleeve 108, it can be rotated on the bolt 110 to lock the bolt 110 on the locking ring 109 and make it difficult for the bolt 110 to change its position, that is, effectively prevent the bolt 110 from loosening, which is beneficial to further improve the operation stability of the paper cup bottom rolling device in this embodiment.

[0036] In the above structure provided in this application, please refer to Figure 1 and Figure 2 , a plurality of pry holes 112 are formed on the slot sleeve 108 and arranged around the drive shaft 101, and the pry holes 112 extend radially along the drive shaft 101. According to the above structure provided in this embodiment, the plurality of pry holes 112 arranged around the drive shaft 101 can make it more convenient for the operator to control the rotation of the slot sleeve 108 relative to the drive shaft 101, which is beneficial to more quickly and conveniently adjust the slot sleeve 108 to a predetermined position on the drive shaft 101 and further improve the adjustment convenience of the paper cup bottom rolling device in this embodiment.

[0037] In the above structure provided in this application, please refer to Figure 1 and Figure 2 , a counterbore 113 adapted to the bolt 110 is formed on the slot sleeve 108, and the slot sleeve 108 is detachably connected to the bolt 110 through the counterbore 113. According to the above structure provided in this embodiment, after the bolt 110 is connected to the slot sleeve 108 through the counterbore 113, on the one hand, when adjusting the position of the slot sleeve 108, the locking ring 109 can follow the slot sleeve 108 and rotate relative to the drive shaft 101, so that when the slot sleeve 108 is adjusted, the locking ring 109 is adjusted accordingly, which is beneficial to improving the assembly efficiency of the transmission structure of the paper cup bottom rolling device in this embodiment; on the other hand, the bolt 110 abuts against the slot sleeve 108 more stably during the rotation relative to the locking ring 109, so that the slot sleeve 108 can more reliably abut against the thread of the external thread 107, which is beneficial to further improving the operation stability of the paper cup bottom rolling device in this embodiment.

[0038] In the above structure provided in this application, please refer to Figure 1 and Figure 2 , a plurality of bolts 110 are arranged at intervals around the central axis of the drive shaft 101. According to the above structure provided in this embodiment, the uniform arrangement of the plurality of bolts 110 can make the slot sleeve 108 more reliably abut against the thread of the external thread 107, which is beneficial to further improving the operation stability of the paper cup bottom rolling device in this embodiment.

[0039] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A transmission structure of a paper cup bottom rolling device, comprising a drive shaft (101), a flange sleeve (104), and a bearing (106), characterized in that: The driving shaft (101) forms a connected plane area (102) and an arc area (103) in its circumferential direction; The flange sleeve (104) forms a through hole (105) for the drive shaft (101) to pass through, the cross-sectional shape of the through hole (105) in the axial direction is adapted to the cross-sectional shape of the drive shaft (101) in the axial direction, and the drive shaft (101) is movably connected to the flange sleeve (104) through the through hole (105) and can move relative to the flange sleeve (104) along its own axial direction; The bearing (106) is sleeved on the flange sleeve (104) and is coaxially arranged with the drive shaft (101).

2. The transmission structure of the paper cup bottom rolling device according to claim 1, characterized in that: At least two of the planar areas (102) are arranged at intervals along the circumference of the drive shaft (101).

3. The transmission structure of the paper cup bottom rolling device according to claim 2, characterized in that: The plurality of plane regions (102) are symmetrically arranged about the central axis of the drive shaft (101).

4. The transmission structure of the paper cup bottom rolling device according to claim 3, characterized in that: The bearing (106) is a thrust bearing.

5. The transmission structure of the paper cup bottom rolling device according to claim 1, characterized in that: A coaxial external thread (107) is formed on the surface of the drive shaft (101); The transmission structure of the paper cup bottom rolling device further comprises a slot sleeve (108) threadedly connected to the drive shaft (101) via the external thread (107) and used to drive the drive shaft (101) to move, a locking ring (109) threadedly connected to the drive shaft (101) via the external thread (107), and a bolt (110) threadedly connected to the locking ring (109); The bolt (110) is parallel to the drive shaft (101) and passes through the locking ring (109) to abut against the slot sleeve (108).

6. The transmission structure of the paper cup bottom rolling device according to claim 5, characterized in that: The paper cup bottom rolling device transmission structure also includes a nut (111) threadedly connected to the bolt (110) and abutting against the locking ring (109).

7. The transmission structure of the paper cup bottom rolling device according to claim 5, characterized in that: A plurality of pry holes (112) arranged around the drive shaft (101) are formed on the slot sleeve (108), and the pry holes (112) extend in the radial direction of the drive shaft (101).

8. The transmission structure of the paper cup bottom rolling device according to claim 7, characterized in that: A countersunk hole (113) adapted to fit the bolt (110) is formed on the slot sleeve (108), and the slot sleeve (108) is detachably connected to the bolt (110) via the countersunk hole (113).

9. The transmission structure of the paper cup bottom rolling device according to claim 8, characterized in that: A plurality of bolts (110) are arranged at intervals around the central axis of the drive shaft (101).

Images