Quick-disassembly end cover and core-pulling assembly of vacuum press roll

Abstract

The utility model relates to the technical field of papermaking machinery, and discloses a quick-disassembly end cover and core-pulling assembly of a vacuum press roll, which comprises a vacuum press roll body, a quick-disassembly end cover and a core-pulling piece, and the quick-disassembly end cover is arranged at one end of the vacuum press roll body. According to the quick-disassembly end cover and core-pulling assembly of the vacuum press roll, by arranging the quick-disassembly end cover, especially a clamp type locking mechanism, a traditional tedious multi-bolt fixing mode is abandoned, the end cover body can be assembled and disassembled in a short time, the working efficiency is remarkably improved, stable power is provided through a hydraulic core-pulling mechanism in the core-pulling piece, and the core-pulling effect is good. Smooth pulling and inserting operation of the mandrel is guaranteed, the mandrel can be accurately guided to move through the positioning and guiding device, abrasion caused by dislocation of the mandrel and the vacuum press roll body is avoided, the service life of equipment is prolonged, good sealing performance between the end cover body and the vacuum press roll body is guaranteed through the sealing piece, and the situation that vacuum leakage affects the performance of the equipment is prevented.

Description

Technical Field

[0001] This utility model relates to the field of papermaking machinery technology, and in particular to a quick-release end cap and core-pulling assembly for a vacuum press roller. Background Technology

[0002] Vacuum press rolls are machines commonly used in industries such as pulp, chemical, and food processing. Their main function is to dry and compact wet pulp to produce various paper, film, and board products. Vacuum press rolls are important components in papermaking machinery. During use, the end caps and mandrels need to be disassembled for maintenance, cleaning, and replacement of internal parts.

[0003] Traditional methods for disassembling and removing the end caps of vacuum press rollers typically involve using multiple bolts to secure the end caps. Disassembly requires unscrewing each bolt individually, which is cumbersome, time-consuming, and reduces work efficiency. Furthermore, inaccurate positioning of the mandrel during the core removal process can easily cause wear on the mandrel and roller body, affecting the service life and performance of the equipment. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantages of cumbersome operation, long time consumption and inaccurate core positioning in the process of disassembling the end cap of the vacuum press roller and core pulling. To this end, we propose a quick disassembly end cap and core pulling assembly for the vacuum press roller.

[0005] To achieve the above objectives, this application adopts the following technical solution: a quick-release end cap and core-pulling assembly for a vacuum press roller, comprising a vacuum press roller body, a quick-release end cap, and a core-pulling component. The quick-release end cap is installed at one end of the vacuum press roller body, and the core-pulling component is disposed inside the vacuum press roller body. The quick-release end cap includes an end cap body, a clamp-type locking mechanism, and a sealing element. The edge of the end cap body is provided with an annular flange, and the clamp-type locking mechanism is sleeved on the outside of the annular flange. The core-pulling component includes a mandrel, a hydraulic core-pulling mechanism, and a positioning guide device. The mandrel has a hollow structure and a vacuum channel is provided inside. The positioning guide device is disposed between the mandrel and the vacuum press roller body.

[0006] Preferably, the clamp-type locking mechanism includes two semi-circular clamps and a fastening bolt. The two semi-circular clamps are spliced ​​together and fitted onto the outside of the annular flange. The fastening bolt passes through the corresponding mounting holes on the two semi-circular clamps to fasten the two semi-circular clamps together.

[0007] Preferably, the sealing element is disposed on the contact surface between the end cap body and the vacuum press roller body.

[0008] Preferably, the hydraulic core-pulling mechanism includes a hydraulic cylinder, a piston rod, and a connecting flange. The hydraulic cylinder is fixedly installed at one end of the vacuum pressing roller body, one end of the piston rod is connected to the piston of the hydraulic cylinder, and the other end of the piston rod is fixedly connected to the mandrel through the connecting flange.

[0009] Preferably, the positioning and guiding device includes a positioning block and a positioning groove. The positioning block is disposed on the outer surface of the mandrel, and the positioning groove matching the positioning block is formed on the inner wall of the vacuum press roller body.

[0010] Preferably, the end cap body is provided with an observation window, which is made of transparent material.

[0011] Preferably, a fixed end cap is provided at the other end of the vacuum pressing roller body, and the fixed end cap is fixedly connected to the vacuum pressing roller body by bolts.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, by setting up a quick-release end cap, especially a clamp-type locking mechanism, the traditional cumbersome multi-bolt fixing method is eliminated, enabling the installation and disassembly of the end cap body in a short time, significantly improving work efficiency. The hydraulic core-pulling mechanism in the core-pulling component provides stable power, ensuring smooth core-shaft insertion and removal operations. The positioning and guiding device can accurately guide the movement of the core shaft, avoiding wear caused by misalignment between the core shaft and the vacuum pressing roller body, thus extending the service life of the equipment. The sealing component ensures good sealing between the end cap body and the vacuum pressing roller body, preventing vacuum leakage from affecting equipment performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the clamp-type locking mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the hydraulic core-pulling mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the vacuum press roller body of this utility model.

[0018] Legend: 1. Vacuum press roller body; 2. Quick-release end cap; 3. Core pulling component; 4. Fixed end cap; 201. End cap body; 202. Clamp-type locking mechanism; 203. Sealing component; 204. Annular flange; 2021. Semi-circular clamp; 2022. Fastening bolt; 301. Mandrel; 302. Hydraulic core pulling mechanism; 303. Positioning guide device; 3021. Hydraulic cylinder; 3022. Piston rod; 3023. Connecting flange; 3031. Positioning block; 3032. Positioning groove. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] Reference Figures 1-4 As shown, this utility model provides a technical solution: a quick-release end cap and core-pulling assembly for a vacuum press roller, including a vacuum press roller body 1, a quick-release end cap 2, and a core-pulling component 3. The quick-release end cap 2 is installed at one end of the vacuum press roller body 1, and the core-pulling component 3 is disposed inside the vacuum press roller body 1. The quick-release end cap 2 includes an end cap body 201, a clamp-type locking mechanism 202, and a sealing component 203. An annular flange 204 is provided on the edge of the end cap body 201, and the clamp-type locking mechanism 202 is sleeved on the outside of the annular flange 204. The core-pulling component 3 includes a mandrel 301, a hydraulic core-pulling mechanism 302, and a positioning guide device 303. The mandrel 301 has a hollow structure and a vacuum channel is provided inside. The positioning guide device 303 is disposed between the mandrel 301 and the vacuum press roller. Between the roller bodies 1, the sealing element 203 is set on the contact surface between the end cap body 201 and the vacuum pressing roller body 1. By setting the quick-release end cap 2, especially the clamp-type locking mechanism 202, the traditional cumbersome multi-bolt fixing method is abandoned, and the installation and removal of the end cap body 201 can be realized in a short time, which significantly improves work efficiency. The hydraulic core pulling mechanism 302 in the core pulling component 3 provides stable power to ensure the smooth insertion and removal of the core shaft 301. The positioning guide device 303 can accurately guide the movement of the core shaft 301, avoid wear caused by misalignment between the core shaft 301 and the vacuum pressing roller body 1, and extend the service life of the equipment. The sealing element 203 ensures good sealing between the end cap body 201 and the vacuum pressing roller body 1, preventing vacuum leakage from affecting the performance of the equipment.

[0021] Reference Figure 2As shown in this embodiment: the clamp-type locking mechanism 202 includes two semi-circular clamps 2021 and a fastening bolt 2022. The two semi-circular clamps 2021 are spliced ​​together and fitted onto the outside of the annular flange 204. The fastening bolt 2022 passes through the corresponding mounting holes on the two semi-circular clamps 2021 to fasten the two semi-circular clamps 2021 together. Through the structure of the two semi-circular clamps 2021 and the fastening bolt 2022, during disassembly, only the fastening bolt 2022 needs to be loosened to separate the two semi-circular clamps 2021, thereby quickly removing the end cap body 201.

[0022] Reference Figure 3 As shown in this embodiment: the hydraulic core-pulling mechanism 302 includes a hydraulic cylinder 3021, a piston rod 3022, and a connecting flange 3023. The hydraulic cylinder 3021 is fixedly installed at one end of the vacuum press roller body 1. One end of the piston rod 3022 is connected to the piston of the hydraulic cylinder 3021. The other end of the piston rod 3022 is fixedly connected to the mandrel 301 through the connecting flange 3023. Through the arrangement of the hydraulic cylinder 3021, the piston rod 3022, and the connecting flange 3023, the operation of the hydraulic cylinder 3021 can be controlled by the hydraulic system, thereby pushing the fastening bolt 2022 to move, thereby realizing the extraction and insertion of the mandrel 301.

[0023] Reference Figure 4 As shown in this embodiment: the positioning guide device 303 includes a positioning block 3031 and a positioning groove 3032. The positioning block 3031 is disposed on the outer surface of the mandrel 301, and the positioning groove 3032 matching the positioning block 3031 is provided on the inner wall of the vacuum press roller body 1. Through the structure of the positioning block 3031 and the positioning groove 3032, the accurate position of the mandrel 301 when inserted can be ensured, thereby ensuring the smooth movement of the mandrel 301.

[0024] Reference Figure 1 As shown in this embodiment: an observation window is provided on the end cap body 201. The observation window is made of transparent material. By providing the observation window, it is convenient for operators to observe the working condition inside the vacuum press roller body 1, and to promptly identify and handle problems.

[0025] Reference Figure 4 As shown in this embodiment: a fixed end cap 4 is provided at the other end of the vacuum press roller body 1. The fixed end cap 4 is fixedly connected to the vacuum press roller body 1 by bolts. The setting of the fixed end cap 4 ensures the stability of the overall structure of the vacuum press roller body 1.

[0026] Working principle: When it is necessary to disassemble the quick-release end cap 2, loosen the fastening bolts 2022 on the clamp-type locking mechanism 202, remove the two semi-circular clamps 2021, and the end cap body 201 can be removed from the vacuum press roller body 1. Then, when performing the core pulling operation, start the hydraulic system of the hydraulic core pulling mechanism 302. The hydraulic cylinder 3021 pushes the piston rod 3022, which drives the mandrel 301 to be pulled out of the vacuum press roller body 1 under the guidance of the positioning guide device 303 through the connecting flange 3023. When installing, follow the reverse steps. First, insert the mandrel 301 into the vacuum press roller body 1 and accurately position it through the positioning guide device 303. Then install the quick-release end cap 2 and fix the end cap body 201 on the vacuum press roller body 1 through the clamp-type locking mechanism 202. The operation is simple and significantly improves work efficiency.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-release end cap and core-pulling assembly for a vacuum press roller, comprising a vacuum press roller body (1), a quick-release end cap (2), and a core-pulling component (3), characterized in that: The quick-release end cap (2) is installed at one end of the vacuum press roller body (1), and the core-pulling component (3) is located inside the vacuum press roller body (1). The quick-release end cap (2) includes an end cap body (201), a clamp-type locking mechanism (202), and a sealing component (203). The edge of the end cap body (201) is provided with an annular flange (204). The clamp-type locking mechanism (202) is sleeved on the outside of the annular flange (204). The core-pulling component (3) includes a mandrel (301), a hydraulic core-pulling mechanism (302), and a positioning guide device (303). The mandrel (301) is a hollow structure with a vacuum channel inside. The positioning guide device (303) is located between the mandrel (301) and the vacuum press roller body (1).

2. The quick-release end cap and core-pulling assembly for a vacuum press roller according to claim 1, characterized in that: The clamp-type locking mechanism (202) includes two semi-circular clamps (2021) and a fastening bolt (2022). The two semi-circular clamps (2021) are spliced ​​together and fitted on the outside of the annular flange (204). The fastening bolt (2022) passes through the corresponding mounting holes on the two semi-circular clamps (2021) to fasten the two semi-circular clamps (2021) together.

3. The quick-release end cap and core-pulling assembly for a vacuum press roller according to claim 1, characterized in that: The sealing element (203) is disposed on the contact surface between the end cap body (201) and the vacuum press roller body (1).

4. The quick-release end cap and core-pulling assembly for a vacuum press roller according to claim 1, characterized in that: The hydraulic core-pulling mechanism (302) includes a hydraulic cylinder (3021), a piston rod (3022), and a connecting flange (3023). The hydraulic cylinder (3021) is fixedly installed at one end of the vacuum press roller body (1). One end of the piston rod (3022) is connected to the piston of the hydraulic cylinder (3021), and the other end of the piston rod (3022) is fixedly connected to the mandrel (301) through the connecting flange (3023).

5. The quick-release end cap and core-pulling assembly for a vacuum press roller according to claim 1, characterized in that: The positioning and guiding device (303) includes a positioning block (3031) and a positioning groove (3032). The positioning block (3031) is disposed on the outer surface of the mandrel (301), and the inner wall of the vacuum press roller body (1) is provided with a positioning groove (3032) that matches the positioning block (3031).

6. The quick-release end cap and core-pulling assembly for a vacuum press roller according to claim 1, characterized in that: An observation window is provided on the end cap body (201), and the observation window is made of transparent material.

7. The quick-release end cap and core-pulling assembly for a vacuum press roller according to claim 1, characterized in that: The other end of the vacuum press roller body (1) is provided with a fixed end cap (4), which is fixedly connected to the vacuum press roller body (1) by bolts.

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