Detachable and recyclable linear material door high-speed air cylinder

By designing a linear high-speed cylinder with detachable end caps and a built-in buffer mechanism, the problems of complex structure and dust accumulation have been solved, achieving efficient buffering and simplified maintenance of the cylinder, and extending its service life.

CN121611664APending Publication Date: 2026-03-06BEIJING WEIDE YUSHENG TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202610043796.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-14
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional linear material gate high-speed cylinders suffer from problems such as complex structure, difficult maintenance, limited service life, insufficient buffering performance, and insufficient disassembly, making it difficult to meet the requirements of efficient cyclic use, and dust accumulation affects the movement of the piston rod.

Method used

A linear high-speed cylinder for material gates was designed, comprising a cylinder body, a buffer mechanism, and a detachable end cover. The built-in buffer mechanism provides buffering, and the detachable end cover helps to clean dust, preventing piston rod breakage and simplifying the maintenance process.

Benefits of technology

This has optimized the cylinder's cushioning performance, extended its service life, simplified the maintenance process, reduced maintenance costs, and ensured the efficient and cyclical use of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a detachable and recyclable linear material door high-speed air cylinder which comprises an air cylinder body, a buffer mechanism and a detachable end cover, the air cylinder body comprises a cylinder body, the two ends of the cylinder body are connected with a front end cover and a rear end cover respectively, a piston is movably arranged in the cylinder body, and the front end cover is slidably provided with a piston rod connected with the piston; the buffer mechanism is arranged on the surface, corresponding to the front end cover and the rear end cover, in the cylinder body; the detachable end cover comprises a connecting sleeve arranged on the surface of the side, away from the cylinder body, of the front end cover, and a groove used for containing the connecting sleeve is formed in the surface of the front end cover. Buffering can be achieved by making contact with the annular buffering plate and the buffering plate when the piston moves, adjustment of the buffering spring is achieved by arranging the annular movable plate and the adjusting plate, the buffering effect is guaranteed, and disassembly is not needed.
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Description

Technical Field

[0001] This invention relates to the field of mechanical automation technology, specifically to a detachable and reusable linear high-speed cylinder for material gates. Background Technology

[0002] In the pharmaceutical industry, the counting and bottling of uncoated tablets, capsules, and coated tablets is performed, with a specified filling volume per bottle. To ensure fast and accurate tablet filling, a linear high-speed cylinder is used for the feed gate. This cylinder requires continuous, frequent, and high-speed movement for material cutting. The cylinder itself is a wear part with a limited lifespan. Furthermore, dust from the material enters the cylinder along with it, and high dust levels can easily damage the cylinder. If the cylinder malfunctions or is damaged, the feed gate cannot close or open promptly, leading to inaccurate counting. The feed gate cylinder detection device uses motion sensors to monitor the movement of all cylinders in real time. If a cylinder slows down or fails to reach its designated position, an alarm signal is issued, and the damaged cylinder is accurately identified, reminding the operator to replace it promptly to ensure accurate tablet counting.

[0003] Due to limitations in current technology, traditional high-speed cylinders often suffer from complex structures, difficult maintenance, and limited service life, making it difficult to meet the requirements for efficient cyclic use. Their buffering performance is also insufficient. While research on built-in adaptive pneumatic buffer structures has made some progress, it still suffers from limited buffering adjustment range and poor adaptability to operating conditions, hindering the widespread application of these cylinders. Furthermore, their lack of disassembly capability is a significant drawback; most components of traditional cylinders are fixedly connected, making quick disassembly and cyclic use difficult, increasing maintenance costs and downtime.

[0004] Current cylinders have some shortcomings. During the extension and retraction process, dust adheres to the surface of the piston rod. This dust cannot be effectively cleaned during the extension and retraction process, and the accumulated dust over a long period of time will affect the extension and retraction of the piston rod. The extension and retraction time of the cylinder is 20 milliseconds / cycle. Due to the high reciprocating speed of the cylinder, the piston rod breakage phenomenon is relatively serious. Therefore, a detachable and reusable linear high-speed cylinder for material gate is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a detachable and reusable linear high-speed cylinder for material gates to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a detachable and reusable linear material gate high-speed cylinder, including a cylinder body, a buffer mechanism and a detachable end cover, wherein the cylinder body includes a cylinder body, and a front end cover and a rear end cover are respectively connected to the two ends of the cylinder body, a piston is movably provided inside the cylinder body, and a piston rod connected to the piston is slidably provided on the front end cover. A buffer mechanism is installed inside the cylinder on the surfaces corresponding to the front and rear end covers. The detachable end cap includes a connecting sleeve disposed on the side surface of the front end cap away from the cylinder body, and the surface of the front end cap is provided with a groove for receiving the connecting sleeve.

[0007] According to the above technical solution, the sidewall of the groove is provided with a through groove in an annular shape, the inside of the through groove is provided with a movable fixed steel ball, the outer peripheral surface of the connecting sleeve is provided with an annular groove that cooperates with the fixed steel ball, the outer wall of the front cover is provided with a movable ring, and an elastic element is provided between the movable ring and the front cover.

[0008] According to the above technical solution, the groove is coaxially provided with an annular groove inside, and an annular push plate is movably provided on the inner surface of the annular groove. A spring is provided between the annular push plate and the annular groove.

[0009] According to the above technical solution, the buffer mechanism includes buffer grooves disposed on the surfaces of the front cover and the rear cover. An annular buffer plate is movably disposed on the inner surface of the buffer groove of the front cover, and a buffer plate is movably disposed on the inner surface of the buffer groove of the rear cover.

[0010] According to the above technical solution, the front end cover is provided with an annular movable groove coaxially inside, and an annular movable plate is movably provided on the inner surface of the annular movable groove. The annular movable plate is connected to the annular buffer plate through a connecting pipe, and a first buffer spring is provided between the annular movable plate and the annular movable groove.

[0011] According to the above technical solution, the inner wall of the annular movable groove is provided with an adjusting tube, the first buffer spring is disposed between the adjusting tube and the annular movable plate, the outer wall of the adjusting tube is provided with an external thread, the outer wall of the annular movable groove is coaxially provided with an annular rotating groove, and the inner wall of the annular rotating groove is rotatably provided with an adjusting ring that is screwed to the adjusting tube.

[0012] According to the above technical solution, the interior of the rear cover is provided with a movable groove, and an adjusting plate is screwed into the interior of the movable groove. A second buffer spring is provided between the adjusting plate and the buffer plate.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting up a cylinder body, a buffer mechanism and a detachable end cover, achieves buffering by building a buffer mechanism inside the cylinder body, and the piston moves and contacts the annular buffer plate and the buffer plate. Furthermore, by setting up an annular movable plate and an adjusting plate, the buffer spring can be adjusted, ensuring the buffering effect without disassembly. By setting up a connecting sleeve, after the equipment has been working for a long time, only the connecting sleeve needs to be replaced to clean up the accumulated dust, preventing the piston rod from fatigue and breaking after long-term work, and at the same time, there is no need to disassemble the cylinder body. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the disassembly structure of the connecting sleeve of the present invention; Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the front cover buffer mechanism of the present invention; Figure 5 This is a schematic diagram of the rear cover buffer mechanism of the present invention; In the diagram: 1-Cylinder body, 2-Front end cover, 3-Rear end cover, 4-Piston, 5-Piston rod, 6-Connecting sleeve, 7-Groove, 8-Through groove, 9-Fixing steel ball, 10-Annular groove, 11-Moving ring, 12-Annular groove, 13-Annular push plate, 14-Spring, 15-Buffer groove, 16-Annular buffer plate, 17-Buffer plate, 18-Annular movable groove, 19-Annular movable plate, 20-First buffer spring, 21-Adjusting tube, 22-Annular buffer groove, 23-Adjusting ring, 24-Moving groove, 25-Adjusting plate, 26-Second buffer spring. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-4 The present invention provides a technical solution: a detachable and reusable linear high-speed cylinder for material gates, comprising a cylinder body, a buffer mechanism, and a detachable end cap, such as... Figure 1 As shown, the cylinder body includes a cylinder body 1, with a front end cover 2 and a rear end cover 3 connected to both ends of the cylinder body 1 respectively. A piston 4 is movably disposed inside the cylinder body 1, and a piston rod 5 connected to the piston 4 is slidably disposed on the front end cover 2. The other necessary structures required for the equipment are technical means commonly used by those skilled in the art and will not be described in detail here. A buffer mechanism is installed inside the cylinder 1 on the surfaces corresponding to the front end cover 2 and the rear end cover 3. When the piston reciprocates inside the cylinder 1, it contacts the buffer mechanism to achieve buffering. The detachable end cap includes a connecting sleeve 6 disposed on the side surface of the front end cap 2 away from the cylinder body 1. The surface of the front end cap 2 is provided with a groove 7 for accommodating the connecting sleeve 6. When the piston rod 5 moves, dust will adhere to its surface. The dust will adhere to the contact point between the front end cap 2 and the piston rod 5, affecting the movement of the piston rod 5. However, by providing the connecting sleeve 6, the dust will be re-contaminated on the surface of the connecting sleeve 6. The connecting sleeve 6 can be directly replaced without disassembling the entire cylinder body. Specifically, such as Figure 3 As shown, the sidewall of the groove 7 has a ring-shaped distribution of through grooves 8. The inside of the through grooves 8 is provided with a movable fixing steel ball 9. The fixing steel ball 9 can move in the radial direction of the front end cover 2. The outer peripheral surface of the connecting sleeve 6 is provided with an annular groove 10 that cooperates with the fixing steel ball 9. The outer wall of the front end cover 2 is provided with a movable ring 11. An elastic element, which can be a spring, is provided between the movable ring 11 and the front end cover 2. Under the action of the elastic element, the fixing steel ball 9 is stuck inside the annular groove 10, fixing the connecting sleeve 6 to the front end cover 2. When disassembly is required, the movable ring 11 is moved, and the fixing steel ball 9 can move away from the axis of the front end cover 2, so the connecting sleeve 6 can be pulled out to complete the disassembly. Specifically, the groove 7 is coaxially provided with an annular groove 12 inside, and an annular push plate 13 is movably provided on the inner surface of the annular groove 12. A spring 14 is provided between the annular push plate 13 and the annular groove 12. When it is necessary to disassemble the connecting sleeve 6, the annular push plate 13 can push out the connecting sleeve 6 under the action of the spring 14 to complete the disassembly of the connecting sleeve 6. Specifically, the buffer mechanism includes buffer grooves 15 disposed on the surfaces of the front cover 2 and the rear cover 3. An annular buffer plate 16 is movably disposed on the inner surface of the buffer groove 15 of the front cover 2, and a buffer plate 17 is movably disposed on the inner surface of the buffer groove 15 of the rear cover 3. Figure 3 As shown, when piston 4 moves, it contacts the annular buffer plate 16 and the buffer plate 17 to achieve buffering. Specifically, the front cover 2 has an annular movable groove 18 coaxially arranged inside, and an annular movable plate 19 is movably arranged on the inner surface of the annular movable groove 18. The annular movable plate 19 is connected to the annular buffer plate 16 through a connecting pipe. A first buffer spring 20 is provided between the annular movable plate 19 and the annular movable groove 18, and the buffer is achieved by the first buffer spring 20. Specifically, an adjusting tube 21 is movably provided on the inner wall of the annular movable groove 18, and a first buffer spring 20 is disposed between the adjusting tube 21 and the annular movable plate 19. The outer wall of the adjusting tube 21 is provided with external threads, and an annular rotating groove 22 is coaxially provided on the outer wall of the annular movable groove 18. An adjusting ring 23, which is screwed to the adjusting tube 21, is rotatably provided on the inner wall of the annular rotating groove 22. By controlling the rotation of the adjusting ring 23, the adjusting tube 21 can be controlled to slide inside the annular movable groove 18 under the action of the threaded engagement, thereby controlling the preload of the first buffer spring 20. This allows the annular movable plate 19 to maintain good buffering performance. Figure 4 As shown, the outer wall of the regulating tube 21 is provided with a limiting groove, and the annular movable groove 18 is provided with a limiting block that cooperates with the limiting groove, thereby restricting the degree of freedom of the regulating tube 21 and preventing the regulating tube 21 from moving and rotating with the regulating ring 23. Figure 3 As shown, a crown gear is coaxially connected to the outer wall of the adjusting ring 23, and an adjusting nut for controlling the rotation of the gear is rotatably provided on the outer wall of the front cover 2. The gear meshes with the crown gear, so that the preload of the first buffer spring 20 can be adjusted without disassembly. Specifically, the rear end cover 3 has a movable groove 24 inside, and an adjusting plate 25 is screwed into the movable groove 24. A second buffer spring 26 is provided between the adjusting plate 25 and the buffer plate 17. Figure 5 As shown, the adjusting plate 25 moves inside the movable groove 24 to adjust the second buffer spring 26. An adjusting nut is provided at the rear end of the rear end cover 3. The adjusting nut is coaxially connected to a connecting block that is movably connected to the adjusting plate 25. The outer surface of the connecting block is provided with a slider, and the surface of the adjusting plate 25 is provided with a sliding groove that is movably connected to the slider. By rotating the adjusting nut, the connecting block is controlled to rotate. With the cooperation of the sliding groove and the slider, the adjusting plate 25 is controlled to rotate. With the action of the threaded engagement, the adjusting plate 25 is controlled to move inside the movable groove 24. In use, the piston 4 reciprocates inside the cylinder 1. When it comes into contact with the annular buffer plate 16 and the buffer plate 17, it is buffered by the action of the first buffer spring 20 and the second buffer spring 26. Under the action of the elastic element, the fixed steel ball 9 is stuck inside the annular groove 10, fixing the connecting sleeve 6 to the front end cover 2. When disassembly is required, the movable ring 11 is moved, and the fixed steel ball 9 can move away from the axis of the front end cover 2, so the connecting sleeve 6 can be pulled out to complete the disassembly. By controlling the rotation of the adjusting ring 23, the adjusting tube 21 is controlled to slide inside the annular movable groove 18 under the action of the threaded engagement, controlling the preload of the first buffer spring 20, so that the annular movable plate 19 can maintain good buffering performance. By rotating the adjusting nut, the connecting block is controlled to rotate. Under the action of the sliding block, the adjusting plate 25 is controlled to rotate. Under the action of the threaded engagement, the adjusting plate 25 is controlled to move inside the movable groove 24, realizing the adjustment of the preload of the second buffer spring 26.

[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0018] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A detachable and reusable linear valve high-speed cylinder, comprising a cylinder body, a buffer mechanism and a detachable end cover, characterized in that: The cylinder body includes a cylinder body (1), the front end cover (2) and the rear end cover (3) are connected to both ends of the cylinder body (1) respectively, a piston (4) is movably arranged in the cylinder body (1), the piston rod (5) connected with the piston (4) is slidably arranged on the front end cover (2); A buffer mechanism is arranged on the surface of the front end cover (2) and the rear end cover (3) in the cylinder body (1); A detachable end cover includes a connecting sleeve (6) arranged on the surface of the front end cover (2) away from the cylinder body (1), and a groove (7) is arranged on the surface of the front end cover (2) for accommodating the connecting sleeve (6).

2. The detachable and reusable linear valve high speed cylinder of claim 1, wherein: The side wall of the groove (7) is annularly distributed with a through groove (8), the inside of the through groove (8) is movably provided with a fixed steel ball (9), the outer periphery of the connecting sleeve (6) is provided with an annular groove (10) matched with the fixed steel ball (9), the outer wall of the front end cover (2) is movably provided with a movable ring (11), and an elastic element is arranged between the movable ring (11) and the front end cover (2).

3. The detachable and reusable linear valve high speed cylinder of claim 2, wherein: The inside of the groove (7) is coaxially provided with an annular groove (12), the inner surface of the annular groove (12) is movably provided with an annular push plate (13), and a spring (14) is arranged between the annular push plate (13) and the annular groove (12).

4. The detachable and reusable linear valve high speed cylinder of claim 3, wherein: The buffer mechanism includes a buffer groove (15) arranged on the surface of the front end cover (2) and the rear end cover (3), the inner surface of the buffer groove (15) of the front end cover (2) is movably provided with an annular buffer plate (16), and the inner surface of the buffer groove (15) of the rear end cover (3) is movably provided with a buffer plate (17).

5. The dismountable and reusable linear valve high speed cylinder according to claim 4, wherein: The inside of the front end cover (2) is coaxially provided with an annular movable groove (18), the inner surface of the annular movable groove (18) is movably provided with an annular movable plate (19), the annular movable plate (19) is connected with the annular buffer plate (16) through a connecting pipe, and a first buffer spring (20) is arranged between the annular movable plate (19) and the annular movable groove (18).

6. The dismountable and reusable linear valve high speed cylinder according to claim 5, wherein: The inner wall of the annular movable groove (18) is movably provided with an adjusting pipe (21), the first buffer spring (20) is arranged between the adjusting pipe (21) and the annular movable plate (19), the outer wall of the adjusting pipe (21) is provided with an external thread, the outer wall of the annular movable groove (18) is coaxially provided with an annular rotating groove (22), and the inner wall of the annular rotating groove (22) is rotatably provided with an adjusting ring (23) screwed with the adjusting pipe (21).

7. The dismountable and reusable linear valve high speed cylinder according to claim 6, wherein: The inside of the rear end cover (3) is provided with a movable groove (24), the inside of the movable groove (24) is screwed with an adjusting plate (25), and a second buffer spring (26) is arranged between the adjusting plate (25) and the buffer plate (17).