Eight-station fine integrated cylinder
By designing an eight-position precision integrated cylinder, the cylinder barrel and push rod are arranged side by side to achieve individual control and lubrication. This solves the problems of large installation space, large error, and inconvenient maintenance of traditional cylinders, and achieves precise control and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HANGYUAN PNEUMATIC TECHNOLOGY CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional warp knitting machines have multiple independent cylinders installed in parallel, which takes up a lot of space, has large positional errors, and is inconvenient to maintain, requiring the piston to be disassembled and lubricated, which is time-consuming.
Design an eight-position precision-programmed integrated cylinder that integrates eight sets of cylinder barrels and push rods in a concentrated and parallel manner. Through structures such as flow channels, oil grooves, and oil outlets, it achieves individual control and lubrication, eliminates positional errors, and simplifies the maintenance process.
It saves installation space, eliminates positional errors, enables precise control, simplifies lubrication and maintenance, and improves maintenance convenience.
Smart Images

Figure CN224496975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cylinder technology, and more specifically, to an eight-station precision-machined integrated cylinder. Background Technology
[0002] A warp knitting machine is a textile device that uses needles to knit yarn by feeding yarn in the warp direction and forming loops to create knitted fabric.
[0003] In warp knitting machines, multiple cylinders are often required to synchronously execute actions to control the movement of the guide bars. The traditional approach is to configure one independent cylinder for each station. However, installing multiple independent cylinders in parallel at each station occupies a large amount of installation space, and positional errors inevitably occur when multiple cylinders are installed in parallel, resulting in inaccurate positioning of the guide bars. Furthermore, the cylinders require periodic application of lubricating grease between the piston and cylinder barrel during operation; however, existing cylinders require the piston to be removed from the cylinder barrel before lubrication can be applied, a time-consuming process that makes maintenance inconvenient. Utility Model Content
[0004] This utility model provides an eight-station precision-woven integrated cylinder, which solves the technical problems in the prior art.
[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0006] An eight-station precision-woven integrated cylinder includes a cylinder body with eight sets of cylinder barrels arranged side by side inside the cylinder body. Each cylinder barrel contains a piston. Interfaces are located at the front and rear ends of each set of cylinder barrels on the cylinder body. A push rod is fixedly connected to the piston. An end cap is fixedly connected to the front end of the cylinder body by screws. Each set of push rods passes through the end cap and extends outward from the outside of the cylinder body. A flow channel is provided inside the push rod, and an oil inlet communicating with the flow channel is located at the front end of the push rod. An oil groove communicating with the end of the flow channel is provided inside the piston. Several sets of oil outlet holes are provided around the oil groove inside the piston, with the ends of the oil outlet holes extending outward from the piston and evenly distributed along the edge of the piston.
[0007] Furthermore, a sealing plug is threaded onto the oil filling port, a knob is provided at the top of the sealing plug, a retaining ring is provided on the surface of the sealing plug, and a sealing gasket is provided on the retaining ring.
[0008] Furthermore, the piston surface is provided with two sets of grooves, which are distributed at the front and rear ends of the piston, and an X-shaped sealing ring is nested inside the groove.
[0009] Furthermore, a sealing lip is installed between the end cap and the end of each set of cylinders, and the push rod passes through the inside of the end cap and extends out of the outside of the cylinder body.
[0010] Furthermore, the edge of the end cap is provided with mounting holes, and the two sides of the end cap are also provided with positioning pin holes.
[0011] Furthermore, the top rod is made of 430R stainless steel and has a rounded ball end.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This structure integrates eight sets of cylinders, cylinder barrels and push rods into one unit, and allows for individual control of the movement of each set of push rods without interference between them. This enables precise control of the comb bars of the warp knitting machine, while eliminating the need for parallel installation of multiple cylinders, saving considerable installation space and eliminating positional errors caused by parallel installation of multiple cylinders. Furthermore, the design of flow channels, oil grooves, oil outlets, and oil inlets facilitates the application of lubricating grease between the cylinder barrels and pistons, eliminating the need to disassemble the pistons from the inside of the cylinder barrels, thus effectively improving the convenience of maintenance. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0016] Figure 3 This is a cross-sectional view of the cylinder in this utility model;
[0017] Figure 4 This is a schematic diagram of the piston structure in this utility model;
[0018] Figure 5 This is a cross-sectional view of the piston in this utility model.
[0019] In the diagram: 1. Cylinder body; 2. Cylinder barrel; 3. Piston; 4. Interface; 5. Push rod; 6. End cap; 7. Flow channel; 8. Oil groove; 9. Oil outlet; 10. Oil inlet; 11. Sealing plug; 12. Knob; 13. Retaining ring; 14. Slot; 15. X-type sealing ring; 16. Sealing lip; 17. Mounting hole; 18. Locating pin hole; 19. Rounded ball head. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0022] Please see Figure 1-5An eight-station precision-machined integrated cylinder includes a cylinder body 1, which is integrally cast and has eight sets of cylinder barrels 2 arranged side by side inside. Pistons 3 are installed inside the cylinder barrels 2, and the pistons 3 are in contact with the inner wall of the cylinder barrels 2. Interfaces 4 are provided at the front and rear ends of each set of cylinder barrels 2 on the cylinder body 1. The interfaces 4 at the front and rear ends of each set of cylinder barrels 2 are connected to a pneumatic valve. The pneumatic valve introduces high-pressure gas to the front or rear end of the cylinder barrel 2 through the interfaces 4, allowing the pistons 3 to slide back and forth along the interior of the cylinder barrel 2 under the action of air pressure. Push rods 5 are fixedly connected to the pistons 3. An end cap 6 is fixedly connected to the front end of the cylinder body 1 by screws. Each set of push rods 5 passes through the end cap 6 and extends outward from the outside of the cylinder body 1. When the piston 3 slides back and forth along the inside of the cylinder 2 under the action of air pressure, it can drive the push rod 5 extending out of the cylinder body 1 to perform telescopic movement. In addition, the push rod 5 is provided with a flow channel 7 inside, and the front end of the push rod 5 is provided with an oil inlet 10 communicating with the flow channel 7. The piston 3 is provided with an oil groove 8 communicating with the end of the flow channel 7 inside. The piston 3 is provided with several sets of oil outlet holes 9 around the oil groove 8 inside. The ends of the oil outlet holes 9 all extend to the outside of the piston 3 and are evenly distributed on the edge of the piston 3. Lubricating grease can be injected into the inside of the flow channel 7 through the oil inlet 10, so that the injected lubricating grease can be injected into the oil groove 8 through the flow channel 7 and evenly discharged to the outside edge of the piston 3 through the several sets of oil outlet holes 9.
[0023] In this cylinder structure, eight sets of push rods 5 extending outward from the cylinder body 1 are all connected to the guide bars of the warp knitting machine. The interfaces 4 at the front and rear ends of each set of cylinder barrels 2 are then connected to pneumatic valves. Each pneumatic valve can independently control the piston 3 inside the cylinder barrel 2 to slide back and forth. During this back-and-forth sliding, the piston 3 drives the push rods 5 extending outward from the cylinder body 1 to extend and retract. The extension and retraction of each set of push rods 5 is controlled by a separate starting valve, thus preventing interference between them. Because this structure integrates eight sets of cylinder barrels 2 and push rods 5 into a single unit, and allows for individual control of the movement of each set of push rods 5 without interference, it enables precise control of the guide bars of the warp knitting machine. Furthermore, it eliminates the need for parallel installation of multiple cylinders, saving considerable installation space and eliminating the need for multiple... The positional error generated by the parallel installation of cylinders further ensures precise control of the comb bar of the warp knitting machine. In addition, when it is necessary to lubricate the piston inside the cylinder 2, grease can be injected into the flow channel 7 through the oil inlet 10. The injected grease can be injected into the oil groove 8 through the flow channel 7 and evenly discharged to the outer edge of the piston 3 through several sets of oil outlet holes 9. At this time, the grease will be attached to the outer wall of the piston 3. When the piston 3 moves inside the cylinder 2, it can evenly coat the inner wall of the cylinder 2 with grease to reduce the friction between the cylinder 2 and the piston 3. Therefore, this cylinder structure can easily apply grease between the cylinder 2 and the piston 3 without having to disassemble the piston 3 from the inside of the cylinder 2, thus effectively improving the convenience of maintenance.
[0024] For further details, please refer to Figure 1 and Figure 2 A sealing plug 11 is threaded onto the oil filling port 10. A knob 12 is provided at the top of the sealing plug 11. By holding and turning the knob 12, the sealing plug 11 can be tightened onto the oil filling port 10, thereby sealing the oil filling port 10. A retaining ring 13 is provided on the surface of the sealing plug 11, and a sealing washer is provided on it. When the sealing plug 11 is tightened onto the oil filling port 10, the sealing washer on the retaining ring 13 can tightly abut against the port position of the oil filling port 10, which can further improve the sealing performance at the joint between the oil filling port 10 and the sealing plug 11.
[0025] For further details, please refer to Figure 4 and Figure 5The piston 3 has two sets of grooves 14 on its surface, distributed at the front and rear ends of the piston 3. An X-shaped sealing ring 15 is nested inside the groove 14. When no gas is introduced into the piston 3, the X-shaped sealing ring 15 is in a contracted state. When compressed air enters the cylinder 2, the X-shaped sealing ring 15 can expand slightly under the action of air pressure. Therefore, the piston 3 experiences low resistance when starting. After starting, the X-shaped sealing ring 15 can quickly seal between the cylinder 2 and the piston 3. This avoids the piston 3 experiencing high resistance when starting, which would affect the synchronicity of the extension and retraction of the push rod 5. This ensures that the push rod 5 can move smoothly and synchronously, meeting the requirements of synchronicity.
[0026] For further details, please refer to Figure 3 A sealing lip 16 is installed between the end cap 6 and the end of each cylinder 2. The push rod 5 passes through the inside of the end cap 6 and extends out of the outside of the cylinder body 1. The sealing lip 16 can form a seal between the end of the cylinder 2 and the push rod 5 to prevent gas leakage inside the cylinder 2.
[0027] For further details, please refer to Figure 1 The edge of the end cover 6 is provided with mounting holes 17, which can be used to fix the position of the cylinder as a whole by screws. The two sides of the end cover 6 are also provided with positioning pin holes 18, which correspond to the positioning pins on the cylinder mounting position, so as to facilitate the initial positioning of the cylinder as a whole during the installation process, thereby improving the convenience of installation.
[0028] For further details, please refer to Figure 1 The top rod 5 is made of 430R stainless steel, which has high hardness, wear resistance and corrosion resistance. Its end is equipped with a rounded ball head 19, and the smooth and rounded surface can avoid damage to the yarn during operation.
[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An eight-station precision-woven integrated cylinder, comprising a cylinder body (1), characterized in that, The cylinder body (1) has eight sets of cylinder barrels (2) arranged side by side inside. The cylinder barrels (2) are equipped with pistons (3). The cylinder body (1) has interfaces (4) at the front and rear ends of each set of cylinder barrels (2). The pistons (3) are fixedly connected with push rods (5). The front end of the cylinder body (1) is fixedly connected with an end cap (6) by screws. Each set of push rods (5) passes through the end cap (6) and extends out of the cylinder body (1). The push rods (5) have flow channels (7) inside. The front end of the push rods (5) has an oil inlet (10) that communicates with the flow channels (7). The pistons (3) have oil grooves (8) that communicate with the end of the flow channels (7) inside. The pistons (3) have several sets of oil outlet holes (9) around the oil grooves (8) inside. The ends of the oil outlet holes (9) extend to the outside of the pistons (3) and are evenly distributed on the edge of the pistons (3).
2. The eight-station precision-woven integrated cylinder according to claim 1, characterized in that, A sealing plug (11) is threaded onto the oil inlet (10). A knob (12) is provided at the top of the sealing plug (11). A retaining ring (13) is provided on the surface of the sealing plug (11), and a sealing gasket is provided on it.
3. The eight-station precision-woven integrated cylinder according to claim 1, characterized in that, The piston (3) has two sets of slots (14) on its surface, which are distributed at the front and rear ends of the piston (3). An X-shaped sealing ring (15) is nested inside the slot (14).
4. The eight-station precision-woven integrated cylinder according to claim 1, characterized in that, A sealing lip (16) is installed between the end cap (6) and the end of each set of cylinders (2), and the push rod (5) passes through the inside of the end cap (6) and extends out of the outside of the cylinder body (1).
5. The eight-station precision-woven integrated cylinder according to claim 1, characterized in that, The edge of the end cap (6) is provided with mounting holes (17), and the two sides of the end cap (6) are also provided with positioning pin holes (18).
6. The eight-station precision-woven integrated cylinder according to claim 1, characterized in that, The top rod (5) is made of 430R stainless steel and has a rounded ball head (19) at its end.