Roller shaft assembly and etching transfer module

Abstract

The utility model relates to a kind of roller shaft assembly and etching transmission module in etching transmission technical field, including main shaft and bearing seat, the main shaft is installed in the bearing seat by bearing, the one end of the bearing seat is provided with shaft sleeve portion along the axial direction of the main shaft, the main shaft is provided with rubber layer, working shaft surface and waterproof shaft surface are provided on the rubber layer, the utility model main shaft adopts height difference design, effectively cut off the liquid flow direction of working shaft surface and waterproof shaft surface, ensure that etching liquid flowing through working shaft surface does not flow into the inside of shaft sleeve, to avoid bearing corrosion, significantly improve the stability and service life of roller shaft assembly, simultaneously, higher working shaft surface can effectively prevent etching sputtering to gap, further reduce the adverse effects caused by liquid infiltration to the internal structure of bearing seat.In addition, by the recess setting between working shaft surface and waterproof shaft surface, effectively guide etching liquid flow direction working shaft surface low end, prevent its penetration to waterproof shaft surface.

Description

Technical Field

[0001] This utility model relates to the field of etching conveying technology, specifically to a roller assembly and an etching conveying module. Background Technology

[0002] Existing etching conveyor modules mainly consist of a drive unit, a transmission structure, and a roller assembly. The roller assembly, as the core component, is responsible for carrying and conveying the workpiece to be etched. The drive unit provides power, and the transmission structure is responsible for transmitting this power to the roller assembly, enabling it to operate continuously and stably.

[0003] However, existing roller assemblies typically use sealing rings on the main shaft to prevent bearing corrosion from etching solutions, achieving a waterproof seal. However, this method suffers from problems such as easy wear and difficulty in replacement of the sealing rings. Once the sealing ring fails, the etching solution can seep into the bearing housing, corroding the bearing and affecting the stability and service life of the roller assembly. To address these issues, this invention proposes a roller assembly and an etching conveying module. Summary of the Invention

[0004] This invention provides a roller assembly and an etching conveyor module to solve the problems mentioned in the background art.

[0005] The objective of this utility model is achieved through the following means: A roller assembly includes a main shaft and a bearing housing. The main shaft is mounted in the bearing housing via a load-bearing bearing. One end of the bearing housing is provided with a bushing portion along the axial direction of the main shaft. The main shaft is provided with a rubber coating layer. The rubber coating layer is provided with a working shaft surface and a waterproof shaft surface. The waterproof shaft surface is disposed within the bushing portion. A gap is provided between the inner wall of the bushing portion and the waterproof shaft surface. A groove is provided between the working shaft surface and the waterproof shaft surface. In a direction perpendicular to the main shaft, the working shaft surface is higher than the waterproof shaft surface.

[0006] Furthermore, the groove is formed by a plane perpendicular to the main axis and an inclined plane that slopes outward from bottom to top, the plane and the inclined plane making the groove form a triangle.

[0007] Furthermore, the plane is located at one end near the bearing.

[0008] Furthermore, a number of support rollers are spaced apart on the working shaft surface.

[0009] Furthermore, a sealing ring is provided on the waterproof shaft surface for engaging with the inner wall of the bushing portion.

[0010] The etching conveyor module includes a support frame and the aforementioned roller assembly.

[0011] Furthermore, the roller assembly is provided in several units, and the several roller assemblies are evenly divided into multiple groups and fixed by corresponding mounting brackets to form a conveying module.

[0012] Furthermore, the supporting frame is provided with a track groove for accommodating the conveying module, the conveying module can move up and down along the track groove, and the conveying module is mounted on the upper end of the track groove by a support frame.

[0013] Furthermore, the bottom of the track groove is horizontally provided with a slide rail for cooperating with the conveying module.

[0014] This invention features a high-low design for the main shaft, effectively isolating the liquid flow between the working shaft surface and the waterproof shaft surface. This ensures that the etching solution flowing over the working shaft surface does not enter the bushing, thus preventing bearing corrosion and significantly improving the stability and service life of the roller assembly. Simultaneously, the higher working shaft surface effectively prevents etching splashes into the gaps, further reducing the adverse effects on the internal structure of the bearing housing caused by liquid infiltration. Furthermore, the groove between the working shaft surface and the waterproof shaft surface effectively guides the etching solution to the lower end of the working shaft surface, preventing it from penetrating into the waterproof shaft surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the transmission module in this utility model; Figure 2 This is a cross-sectional view of the transmission module in this utility model; Figure 3 for Figure 2 Enlarged diagram of A in the middle; Figure 4 This is a schematic diagram of the etching conveying module of this utility model; Figure 5 This is a first usage diagram of the etching transmission module of this utility model; Figure 6 This is a second schematic diagram of the etching conveying module of this utility model; The reference numerals in the figure are as follows: 1-bearing frame, 11-track groove, 2-roller assembly, 21-main shaft, 22-bearing seat, 221-shaft sleeve, 23-bearing bearing, 24-rubber coating layer, 241-working shaft surface, 242-waterproof shaft surface, 243-groove, 2431-flat surface, 2432-sloping surface, 25-sealing ring, 26-support roller, 200-transmission module, 3-support frame, 4-slide rail. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] In this embodiment, refer to Figure 1 - Figure 3 A roller assembly 2, specifically implemented therein, includes a main shaft 21 and a bearing housing 22. The main shaft 21 is mounted in the bearing housing 22 via a bearing 23. One end of the bearing housing 22 is provided with a bushing portion 221 along the axial direction of the main shaft 21. A rubber coating layer 24 is provided on the main shaft 21. A working shaft surface 241 and a waterproof shaft surface 242 are provided on the rubber coating layer 24. The waterproof shaft surface 242 is disposed in the bushing portion 221. A gap is provided between the inner wall of the bushing portion 221 and the waterproof shaft surface 242. A groove 243 is provided between the working shaft surface 241 and the waterproof shaft surface 242. In the direction perpendicular to the main shaft 21, the working shaft surface 241 is higher than the waterproof shaft surface 242.

[0018] The groove 243 is formed by a plane 2431 perpendicular to the main shaft 21 and an inclined surface 2432 sloping outward from bottom to top. The plane 2431 and the inclined surface 2432 make the groove 243 form a triangle. The plane 2431 is located at one end near the bearing. Thus, the plane 2431 forms a barrier to the liquid flow, and the inclined surface 2432 forms a guide to the liquid flow, thereby correctly guiding the etching solution to the working shaft surface 241 for discharge, preventing liquid from stagnating in the groove 243, and further improving the waterproof effect.

[0019] Furthermore, a plurality of support rollers 26 are spaced apart on the working shaft surface 241. The support rollers 26 are interference-fitted onto the working shaft surface 241 and are used to support the workpiece, reducing the contact area with the workpiece and avoiding affecting the etching accuracy of the workpiece.

[0020] Furthermore, a sealing ring 25 is provided on the waterproof shaft surface 242 for engaging with the inner wall of the bushing portion 221. This sealing ring 25 serves as the final waterproofing line, effectively preventing liquid from seeping into the gap between the waterproof shaft surface 242 and the inner wall of the bushing portion 221, thereby further improving the waterproof performance.

[0021] Reference Figure 4 - Figure 6 In this embodiment, the etching conveying module includes a support frame 1 and several roller assemblies 2. The roller assemblies 2 are evenly divided into multiple groups and fixed by corresponding mounting brackets to form conveying modules 200. This modular design reduces assembly difficulty and maintenance costs. Each group of conveying modules 200 is connected by gears or chains to achieve synchronous drive operation.

[0022] The supporting frame 1 is provided with a track groove 11 for accommodating the conveying module 200. The conveying module 200 can move up and down along the track groove 11. The conveying module 200 is mounted on the upper end of the track groove 11 via a support frame 3. When it is necessary to replace or maintain the conveying module 200, the support frame 3 is first disassembled, and then the conveying module 200 can be unloaded from the upper end to the lower end of the track groove 11, thereby offsetting adjacent support rollers 26 and avoiding affecting other conveying modules 200. The design of the conveying module 200 being detachable individually effectively improves the maintenance efficiency of the conveying module 200.

[0023] The bottom of the track groove 11 is horizontally provided with a slide rail 4 for cooperating with the conveying module 200. After the conveying module 200 is unloaded from the upper end to the lower end of the track groove 11, the conveying module 200 can be pulled outward along the slide rail 4 so as to completely detach from the supporting frame 1, which facilitates the maintenance or replacement of the conveying module 200.

[0024] The main shaft 21 of this invention adopts a height difference design, which effectively isolates the liquid flow between the working shaft surface 241 and the waterproof shaft surface 242, ensuring that the etching solution flowing through the working shaft surface 241 does not flow into the bushing, thereby avoiding bearing corrosion and significantly improving the stability and service life of the roller assembly 2. At the same time, the higher working shaft surface 241 can effectively prevent etching splashes into the gap, further reducing the adverse effects on the internal structure of the bearing housing 22 caused by liquid seepage. In addition, the groove 243 between the working shaft surface 241 and the waterproof shaft surface 242 effectively guides the etching solution to the lower end of the working shaft surface 241, preventing it from penetrating into the waterproof shaft surface 242.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A roller assembly comprising a main shaft (21) and a bearing housing (22), the main shaft (21) being mounted within the bearing housing (22) via a load-bearing bearing (23), characterized in that, One end of the bearing housing (22) is provided with a bushing portion (221) along the axial direction of the main shaft (21). The main shaft (21) is provided with a rubber coating layer (24). The rubber coating layer (24) is provided with a working shaft surface (241) and a waterproof shaft surface (242). The waterproof shaft surface (242) is located inside the bushing portion (221). A gap is provided between the inner wall of the bushing portion (221) and the waterproof shaft surface (242). A groove (243) is provided between the working shaft surface (241) and the waterproof shaft surface (242). In the direction perpendicular to the main shaft (21), the working shaft surface (241) is higher than the waterproof shaft surface (242).

2. The roller assembly according to claim 1, characterized in that: The groove (243) is formed by a plane (2431) perpendicular to the main axis (21) and an inclined plane (2432) that slopes outward from bottom to top. The plane (2431) and the inclined plane (2432) make the groove (243) form a triangle.

3. The roller assembly according to claim 2, characterized in that: The plane (2431) is located at one end near the bearing.

4. The roller assembly according to claim 1, characterized in that: A number of support rollers (26) are spaced apart on the working shaft surface (241).

5. A roller assembly according to any one of claims 1-4, characterized in that: The waterproof shaft surface (242) is provided with a sealing ring (25) for engaging with the inner wall of the bushing portion (221).

6. An etching conveyor module, characterized in that, It includes a support frame (1) and a roller assembly as described in any one of claims 1-5.

7. The etching transfer module according to claim 6, characterized in that: The roller assembly (2) is provided in several units, and the roller assembly (2) is divided into multiple groups on an average basis and fixed by corresponding mounting brackets to form a conveying module (200).

8. The etching transfer module according to claim 7, characterized in that: The supporting frame (1) is provided with a track groove (11) for accommodating the transmission module (200). The transmission module (200) can move up and down along the track groove (11). The transmission module (200) is installed at the upper end of the track groove (11) by a support frame (3).

9. The etching transfer module according to claim 8, characterized in that: The bottom of the track groove (11) is horizontally provided with a slide rail (4) for cooperating with the transmission module (200).

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