Quick-change roller device

Abstract

The utility model discloses a quick-change roller device which comprises a roller extending in the transverse direction, a rotating connector arranged at the first end of the roller, a coupling outer gear coaxially arranged at the second end of the roller in a sleeving mode, a speed reducer detachably connected with the second end and a pair of bearing assemblies connected with the first end and the second end in a matched mode. A liquid passage which is in fluid communication with an external liquid source is formed in the roller, and the rotary joint is detachably connected with the first end part and is in fluid communication between the external liquid source and the liquid passage; a circle of outer tooth patterns are machined in the circumferential direction of the coupling outer gear. The speed reducer comprises an inner tooth driving shaft meshed with the coupling outer gear, and a circle of inner tooth patterns are machined in the inner tooth driving shaft. Each bearing assembly comprises a bearing seat, a bearing cover detachably connected with the bearing seat and a bearing arranged in the bearing seat, and the roller is coaxially sleeved with the bearing; the roller and the speed reducer are conveniently separated, the convenience of replacing the roller is improved, and the replacement time is shortened.

Description

Technical Field

[0001] The present application relates to the technical field of quick-release rollers, and in particular to a quick-change roller device. Background Art

[0002] In the production of plastic products, in order to meet the needs of different customers for surface patterns of products, different patterns must be replaced with different pattern rollers. The roller replacement process is often complicated and involves many disassembly and assembly parts. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of this application is to provide a quick-change roller device.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a quick-change roller device, comprising:

[0005] The roller extends in the transverse direction and includes a first end and a second end that are away from each other in the transverse direction, wherein a liquid passage that is in fluid communication with an external liquid source is provided in the roller, and the roller;

[0006] a rotary joint, disposed at the first end, the rotary joint being detachably connected to the first end and being fluidically connected between the external liquid source and the liquid passage;

[0007] A coupling external gear is coaxially sleeved on the second end of the roller, and a circle of external teeth is processed on the circumference of the coupling external gear;

[0008] A reducer, comprising an internal gear drive shaft meshing with the coupling external gear, wherein the internal gear drive shaft is processed with a circle of internal teeth; and

[0009] A pair of bearing assemblies are respectively connected to the first end and the second end, each of the bearing assemblies includes a bearing seat, a bearing cover detachably connected to the bearing seat and a bearing arranged in the bearing seat, and the bearing is coaxially sleeved on the roller.

[0010] In the above technical solution, it is further preferred that the pair of bearing assemblies include a first bearing assembly and a second bearing assembly, the first bearing assembly cooperates with the first end portion, and the second bearing assembly cooperates with the second end portion.

[0011] In the above technical solution, it is further preferred that a pair of oil seals are also provided in the first bearing assembly, the bearing of the first bearing assembly includes an outer end face and an inner end face arranged opposite to each other in the transverse direction, and the pair of oil seals are respectively arranged at the connection between the outer end face and the first end portion and at the connection between the inner end face and the first end portion.

[0012] In the above technical solution, it is further preferred that the second end is also provided with a connecting disk, and the connecting disk is connected between the second bearing assembly and the reducer, and the inner teeth and the outer teeth that are meshed with each other are surrounded by the inside of the connecting disk.

[0013] In the above technical solution, it is further preferred that the bearings of the first bearing assembly and the second bearing assembly are both spherical roller bearings.

[0014] In the above technical solution, it is further preferred that a connecting flange is provided between the first end portion and the rotating joint, and the connecting flange includes a first portion and a second portion detachably connected to the first portion.

[0015] In the above technical solution, it is further preferred that each tooth of the outer tooth flower and each tooth of the inner tooth flower extend in a transverse direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present application realizes convenient separation of the roller and the reducer through the tooth meshing between the external gear of the coupling and the internal gear driving shaft, thereby improving the convenience of replacing the roller and reducing the replacement time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a quick-change roller device provided in an embodiment of the present application;

[0019] Figure 2 For along Figure 1 The cross-sectional view cut along the AA line in the figure;

[0020] Figure 3 for Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0021] Figure 4 for Figure 2 A partial enlarged schematic diagram of point C in the middle.

[0022] Among them: 1. roller; 11. first end; 12. second end; 13. liquid passage; 2. rotary joint; 3. reducer; 31. internal gear drive shaft; 4. coupling external gear; 5. first bearing assembly; 51. bearing seat; 52. bearing cover; 53. bearing; 6. second bearing assembly; 7. oil seal; 8. connecting plate; 9. connecting flange. DETAILED DESCRIPTION

[0023] To describe the technical content, structural features, achieved purpose and effect of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0024] The terms “left” and “right” in this application refer to the attached Figure 1 Left and right shown.

[0025] The present application embodiment provides a quick-change roller device, such as Figure 1 As shown, the quick-change roller device includes: a roller 1, a rotary joint 2 detachably connected to one end of the roller 1, and a reducer 3 detachably connected to the other end of the roller 1.

[0026] like Figure 2 As shown, the roller 1 extends in the left-right direction, and has a first end 11 and a second end 12 which are away from each other in the left-right direction. A liquid passage 13 which can be connected to an external liquid source fluid is opened inside the roller 1. Liquid circulates in the liquid passage 13 to adjust the roller surface temperature of the roller 1.

[0027] The rotary joint 2 is detachably connected to the first end 11, and the rotary joint 2 fluid is connected between the external liquid source and the liquid passage 13; the reducer 3 is detachably connected to the second end 12 to drive the roller 1 to rotate around its own axis.

[0028] A connecting flange 9 is also provided between the rotary joint 2 and the first end portion 11. The rotary joint 2 is detachably connected to the roller 1 via the connecting flange 9. The connecting flange 9 is configured to be a first part and a second part that are detachably connected. When the roller 1 is replaced, the first part and the second part of the connecting flange 9 are disassembled so that the roller 1 can be disengaged from the rotary joint 2 and removed from the connecting flange 9.

[0029] like Figure 1 , 2 As shown in FIG. 4 , the second end portion 12 of the roller 1 is coaxially sleeved with a coupling external gear 4, and the coupling external gear 4 is key-connected to the roller 1. When the roller 1 rotates around its own axis, the coupling external gear 4 rotates around the axis along with the roller 1; the coupling external gear 4 is circumferentially processed with a circle of external teeth.

[0030] The reducer 3 includes an internal gear drive shaft 31 meshed with the coupling external gear 4. The internal gear drive shaft 31 is processed with a circle of internal gear flowers. The external gear flowers and the internal gear flowers cooperate with each other, so that the coupling external gear 4 can mesh with the internal gear drive shaft 31. The power of the reducer 3 is transmitted to the roller 1 through the meshed coupling external gear 4 and the internal gear drive shaft 31, so that the roller 1 rotates under the power output by the reducer 3. Each tooth of the internal gear flower and each tooth of the external gear flower extend in the left and right direction. When the internal gear flower and the external gear flower are meshed, the reducer 3 and the roller 1 are connected in transmission. When the roller 1 needs to be replaced, the coupling external gear 4 is withdrawn from the internal gear drive shaft 31 to separate the roller 1 and the reducer 3. The operation is convenient and the replacement time is saved.

[0031] like Figure 2 , 3 As shown, the quick-change roller device also includes a first bearing assembly 5 that is connected to the first end 11 and a second bearing assembly 6 that is connected to the second end 12; the first bearing assembly 5 includes a bearing seat 51, a bearing cover 52 that is detachably connected to the bearing seat 51, and a bearing 53 arranged in the bearing seat 51. The detachable connection between the bearing cover 52 and the bearing seat 51 can be quickly opened when replacing the roller 1, thereby reducing the replacement time and improving the replacement efficiency. The second bearing assembly 6 has the same structure and function as the first bearing assembly 5, and will not be described in detail here. The roller 1 can be rotatably supported on other equipment around its own axis through the first bearing assembly 5 and the second bearing assembly 6. The bearings of the first bearing assembly 5 and the second bearing assembly 6 are spherical roller bearings, which help to bear the axial and radial loads of the roller 1.

[0032] A pair of oil seals 7 are also provided in the first bearing assembly 5, and the pair of oil seals 7 are accommodated in the bearing seat 51. The bearing 53 includes an outer end face and an inner end face opposite to each other on the left and right. The pair of oil seals 7 are respectively arranged at the connection between the outer end face and the first end portion 11 and at the connection between the inner end face and the first end portion 11 to seal the mechanical oil added in the bearing seat 51 to prevent leakage of the mechanical oil.

[0033] like Figure 1 , 2 As shown, the second end portion 12 is also provided with a connecting plate 8, which is connected between the second bearing assembly 6 and the reducer 3, and encloses the mutually meshing internal and external teeth inside, so as to prevent external factors from affecting the connection between the coupling external gear 4 and the internal gear drive shaft 31 during the rotation of the roller 1, thereby ensuring the stable operation of the roller 1 and the reducer 3.

[0034] When replacing the roller 1, open the bearing covers of the first bearing assembly 5 and the second bearing assembly 6, then open the connecting flange 9, remove the rotary joint 2 from the first end 11 of the roller 1, and then withdraw the coupling external gear 4 from the internal gear drive shaft 31, and then remove the roller 1. After replacing the roller 1, put the coupling external gear 4 on the replaced roller 1 and match it with the internal gear drive shaft 31, and finally lock the bearing cover and the connecting flange 9 to complete the quick replacement of the roller.

[0035] The present application realizes convenient separation of the roller and the reducer through the tooth meshing between the external gear of the coupling and the internal gear driving shaft, thereby improving the convenience of replacing the roller and reducing the replacement time.

[0036] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A quick-change roller device, characterized in that: include: The roller extends in the transverse direction and includes a first end and a second end that are away from each other in the transverse direction, wherein a liquid passage that is in fluid communication with an external liquid source is provided in the roller, and the roller; a rotary joint, disposed at the first end, the rotary joint being detachably connected to the first end and being fluidically connected between the external liquid source and the liquid passage; A coupling external gear is coaxially sleeved on the second end of the roller, and a circle of external teeth is processed on the circumference of the coupling external gear; A reducer, comprising an internal gear drive shaft meshing with the coupling external gear, wherein the internal gear drive shaft is processed with a circle of internal teeth; and A pair of bearing assemblies are respectively connected to the first end and the second end, each of the bearing assemblies includes a bearing seat, a bearing cover detachably connected to the bearing seat and a bearing arranged in the bearing seat, and the bearing is coaxially sleeved on the roller.

2. The quick-change roller device according to claim 1, characterized in that: The pair of bearing assemblies comprises a first bearing assembly and a second bearing assembly, wherein the first bearing assembly is matched with the first end portion, and the second bearing assembly is matched with the second end portion.

3. The quick-change roller device according to claim 2, characterized in that: A pair of oil seals are also provided in the first bearing assembly. The bearing of the first bearing assembly includes an outer end face and an inner end face which are arranged opposite to each other in the transverse direction. The pair of oil seals are respectively arranged at the connection between the outer end face and the first end portion and at the connection between the inner end face and the first end portion.

4. The quick-change roller device according to claim 2, characterized in that: The second end is also provided with a connecting disk, which is connected between the second bearing assembly and the reducer, and the inner teeth and the outer teeth that are meshed with each other are surrounded by the inside of the connecting disk.

5. The quick-change roller device according to claim 2, characterized in that: The bearings of the first bearing assembly and the second bearing assembly are both spherical roller bearings.

6. The quick-change roller device according to claim 2, characterized in that: A connecting flange is arranged between the first end and the rotating joint, and the connecting flange comprises a first part and a second part detachably connected to the first part.

7. The quick-change roller device according to claim 1, characterized in that: Each tooth of the outer tooth flower and each tooth of the inner tooth flower extend in the transverse direction.

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