A kind of installation and adjustment tool device for large rubber roll of forming machine
By designing a self-positioning installation and adjustment fixture, the problem of coaxiality deviation between the rubber roller and the rubber roller seat was solved, achieving efficient and precise rubber roller installation and improving the stability of equipment operation and maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGYUN HONGHE TOBACCO (GRP) CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing technology, the coaxiality deviation between the rubber roller and the rubber roller seat makes it difficult to install the rubber roller, which affects the opening quality of the filament bundle and the stability of the suction resistance. Moreover, the installation process relies on manual experience and is time-consuming.
Design a self-positioning installation and adjustment fixture for the large rubber roller of a molding machine. It adopts a cylindrical structure with an inner cylindrical surface and an outer frustum surface. The fixture automatically matches the inner diameter of the rubber roller to achieve self-positioning installation.
It simplifies the installation process of rubber rollers and rubber roller seats, improves installation accuracy and efficiency, reduces suction resistance fluctuations caused by coaxiality deviation, and reduces wear on rubber rollers and bearings.
Smart Images

Figure CN224488311U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tobacco equipment, specifically relating to a tooling device for installing and adjusting the large rubber roller of a molding machine. Background Technology
[0002] Rubber rollers are a crucial component of the AF-KDF4 filter rod forming machine. During operation, they rotate against steel rollers with grooved and raised surfaces, crushing the cellulose acetate filaments and separating the curled fibers. The speed difference between different rubber and steel roller pairs straightens the curled filaments. However, during prolonged production, the high-speed rotation of the rubber and steel roller pairs causes friction between the roller pairs and between the rollers and the filaments, resulting in wear on the rubber roller surface. After wear, the rubber roller surface deforms, reducing the crushing and loosening effect on the filaments at the deformed areas. This leads to poor filament loosening, uneven filter rod suction resistance and hardness, necessitating replacement of the rubber rollers. When removing the old rubber roller and installing the new one, the rubber roller and the rubber roller seat should have a clearance fit, with an installation gap of approximately 0.2mm. Figure 1 As shown, due to the weight of the rubber roller itself, it will move downwards during installation, causing an increase in the coaxiality deviation between the rubber roller and the rubber roller seat. When the equipment is running, the coaxiality deviation between the rubber roller and the rubber roller seat will cause the rubber roller to run radially, affecting the opening quality of the filament bundle and the stability of the suction resistance index, and also accelerating the wear of the rubber roller and bearing.
[0003] The common practice currently is for equipment maintenance personnel to use a feeler gauge to adjust the gap between the inner surface of the rubber roller seat and the outer surface of the speed measuring disc. Figure 2 The photos shown demonstrate how consistent gaps ensure coaxiality. Therefore, to guarantee coaxiality between the rubber roller and its mounting base during installation, constant gap adjustments using feeler gauges are necessary, typically taking over 20 minutes. This adjustment method heavily relies on the experience of maintenance personnel, resulting in significant variations. Furthermore, the repeated adjustments involving tightening and measurement consume considerable time, impacting maintenance efficiency. Some have designed a positioning fixture to maintain coaxiality between the rubber roller and its mounting base through a transition fit. However, due to machining errors in the rubber roller, mounting base, and fixture, ensuring a perfect fit between the fixture and the rubber roller is difficult, and disassembly and assembly are also challenging.
[0004] This utility model is proposed for this purpose. Utility Model Content
[0005] This utility model provides a self-positioning installation and adjustment fixture for the large rubber roller of a molding machine. The fixture is designed as an outer circular platform, and equipment maintenance personnel can use the fixture to automatically match the inner diameter of the rubber roller, thereby achieving the purpose of self-positioning installation of the rubber roller.
[0006] The technical solution of this utility model is as follows:
[0007] A tooling device for installing and adjusting the loosening rubber roller of a molding machine is cylindrical, and the wall thickness of the cylinder gradually decreases from one end to the other.
[0008] Preferably, the inner surface of the cylinder is an inner cylindrical surface 603 with a uniform diameter everywhere; the outer surface of the cylinder is an outer frustum 602 extending from one end of the cylinder to the other end.
[0009] Preferably, a handle 601 spanning the diameter of the cylinder is installed at the port with a thicker cylinder wall.
[0010] Preferably, from one end of the cylinder to the other end, the wall thickness of the cylinder gradually decreases from thick to thin, from 5.0 mm to 0.01 mm.
[0011] The working principle of the molding machine loosening rubber roller installation and adjustment fixture of this utility model is as follows: Figure 1 As shown, when installing the rubber roller 1, simply install and fix the speed measuring disc 3 onto the rubber roller seat 2 using screws 5, then place the rubber roller 1 onto the rubber roller seat 2, without first screwing on the screws 5; Figures 6-8 As shown, hold the handle 601 of the tooling device 6 of this utility model, insert the thinner end of the tooling device 6 into the rubber roller 1 and the speed measuring disk 3, so that the inner cylindrical surface 603 of the tooling device 6 and the outer cylindrical surface of the speed measuring disk 3 are in contact. While rotating the rubber roller 1, press the tooling device 6 with your hand until the outer cylindrical surface 602 of the tooling device 6 is completely tangent to the inner hole surface of the rubber roller 1. Use screws 5 to install and fix the rubber roller 1 on the rubber roller seat 2. Then pull the handle 601 to remove the tooling device 6, cover the end cover 4, and the installation and adjustment of the rubber roller 1 is completed.
[0012] The beneficial effects of this utility model are:
[0013] This utility model provides a self-positioning installation and adjustment fixture for the large rubber roller of a molding machine, which enables the rubber roller to automatically maintain coaxiality with the rubber roller seat during installation and adjustment; it reduces the difficulty of installation and adjustment of the rubber roller 1 and the rubber roller seat 2, improves the installation progress and installation accuracy of the rubber roller; and reduces the problem of suction resistance fluctuation caused by the misalignment of the rubber roller 1 and the rubber roller seat 2 during installation.
[0014] The self-positioning, installation, and adjustment fixture for the large rubber roller of the molding machine in this invention is self-made; the wall material of the fixture can be steel or polymer material. The manufacturing process is simple. Attached Figure Description
[0015] Figure 1 This is a perspective view of the rubber roller, rubber roller seat, and other components of this utility model.
[0016] Figure 2 For equipment maintenance personnel using existing technology, a feeler gauge is used to adjust the gap between the inner surface of the rubber roller seat and the outer surface of the speed measuring disc.
[0017] Figure 3 This is a perspective view of the tooling device of this utility model.
[0018] Figure 4 for Figure 3 The main view.
[0019] Figure 5 for Figure 4 Vertical cross-sectional view.
[0020] Figure 6 This is a perspective view of the tooling device of this utility model being installed and adjusted on a rubber roller.
[0021] Figure 7 for Figure 6 Vertical cross-sectional view.
[0022] Figure 8 for Figure 7 A magnified view of circle A in the middle.
[0023] The attached figures are labeled as follows: 1. Rubber roller; 2. Rubber roller seat; 3. Speed measuring disc; 4. End cap; 5. Screw; 6. Tooling device; 601. Handle; 602. Outer conical surface; 603. Inner cylindrical surface. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "adhesion," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] In this specification, the illustrative expressions of the terms used above should not be construed as necessarily referring to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0028] See Figure 3-5 As shown, a tooling device for installing and adjusting the opening rubber roller of a molding machine is cylindrical, and the wall thickness of the cylinder gradually decreases from one end to the other. Figure 3 As shown, the inner surface of the cylinder is an inner cylindrical surface 603 with a uniform diameter everywhere; the outer surface of the cylinder is an outer frustum 602 extending from one end to the other. The dimensions of the inner cylindrical surface 603 match the outer diameter of the speed measuring disc 3; the outer frustum 602 adapts to the inner diameter of the rubber roller 1; a handle 601 spanning the cylinder diameter is installed at the end with the thicker cylinder wall, facilitating the handling and use of the tooling device. Figure 5 As shown, from one end of the cylinder to the other end, the thickness of the cylinder wall gradually decreases, from 5.0 mm to 0.01 mm.
[0029] The working principle of the molding machine loosening rubber roller installation and adjustment fixture of this utility model is as follows: Figure 1 As shown, when installing the rubber roller 1, simply install and fix the speed measuring disc 3 onto the rubber roller seat 2 using screws 5, then place the rubber roller 1 onto the rubber roller seat 2, without first screwing on the screws 5; Figures 6-8 As shown, holding the handle 601 of the tooling device 6 of this utility model, insert the thinner end of the tooling device 6 into the rubber roller 1 and the speed measuring disk 3. The inner cylindrical surface 603 of the tooling device 6 and the outer cylindrical surface of the speed measuring disk 3 are in contact. While rotating the rubber roller 1, press the tooling device 6 with your hand until the outer cylindrical surface 602 of the tooling device 6 is completely tangent to the inner hole surface of the rubber roller 1. Use screws 5 to install and fix the rubber roller 1 on the rubber roller seat 2. Then pull the handle 601 to remove the tooling device 6, and put on the end cover 4 to complete the installation and adjustment of the rubber roller 1. This ensures that the rubber roller can automatically keep coaxial with the rubber roller seat during installation and adjustment.
[0030] This utility model discloses a self-positioning installation and adjustment fixture for the large rubber roller of a molding machine. This reduces the difficulty of installing and adjusting the rubber roller 1 and the rubber roller seat 2, improves the installation accuracy of the rubber roller, and reduces the problem of suction resistance fluctuations caused by misalignment of the rubber roller 1 and the rubber roller seat 2. This self-positioning installation and adjustment fixture for the large rubber roller of a molding machine is self-made; the wall material of the fixture can be steel or polymer material. The manufacturing process is simple.
[0031] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.
Claims
1. A tooling device for installing and adjusting the large rubber roller of a molding machine, characterized in that, It is cylindrical in shape, and the thickness of the cylinder wall gradually decreases from one end to the other. The inner surface of the cylinder is an inner cylindrical surface with a uniform diameter (603); the outer surface of the cylinder is an outer frustum (602) extending from one end of the cylinder to the other end.
2. The molding machine loosening large rubber roller installation and adjustment fixture device according to claim 1, characterized in that, A handle (601) spanning the diameter of the cylinder is installed at one of the thicker ends of the cylinder wall.
3. The molding machine loosening large rubber roller installation and adjustment fixture device according to claim 1, characterized in that, From one end of the cylinder to the other, the thickness of the cylinder wall gradually decreases, from 5.0 mm to 0.01 mm.