A pneumatic device for controlling the pressure of a rubber roller

Abstract

A pneumatic device for controlling the pressure of rubber roller belongs to the technical field of spinning equipment, including a box, characterized by that: the inside of the box is provided with a mounting plate for installing equipment, the top of the box is respectively provided with an air inlet and two groups of air outlets, the mounting plate is respectively provided with a filter pressure reducing valve, a manual valve, a first precision pressure regulating valve, a second precision pressure regulating valve, a third precision pressure regulating valve, a pneumatic three-way valve and a pneumatic two-way valve; the utility model discloses a box is set up as the external structure, and the internal structure is compactly installed, and the occupied space is smaller, the state of the rubber roller and the size of the pressure can be flexibly adjusted through the manual valve, meanwhile, the manual valve can adjust multiple modes, and the working conditions of different pressure requirements can be well adapted, so that the subsequent use can reduce the damage to the surface of the rubber roller due to the insufficient pressure state, thereby increasing the service life of the rubber roller.

Description

Technical Field

[0001] This utility model belongs to the field of spinning equipment technology, specifically relating to a pneumatic device for controlling the clamping force of rubber rollers. Background Technology

[0002] In the spinning industry, the control of the pressure of the rubber roller is one of the core parameters affecting fiber processing quality, equipment stability, and production efficiency. The rising and falling of the rubber roller is mainly controlled by the cylinder above the roller, and the jaws formed by the rubber roller and the roller (steel roller) are the key area for fiber drafting.

[0003] Insufficient clamping force will cause the fibers to be poorly held, slip during the drafting process, and result in uneven yarn (such as increased yarn CV value), fine or thick knots, and other defects. Excessive clamping force will damage the fibers (especially chemical fibers) and even lead to an increase in the breakage rate, which is not conducive to the processing and production of yarn bundles. Moreover, excessive clamping force will accelerate the wear or deformation of the rubber roller surface, shorten its service life, increase the replacement frequency and production costs. At the same time, long-term overload clamping may cause wear of roller bearings, peeling of surface coating, and even mechanical deformation, affecting the accuracy of the equipment. Utility Model Content

[0004] The present invention mainly addresses the technical problems existing in the prior art and provides a pneumatic device for controlling the clamping force of rubber rollers.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: A pneumatic device for controlling the pressing force of a rubber roller, comprising a housing, characterized in that: the housing is provided with an installation plate for mounting the equipment, the top of the housing is provided with an air inlet and two sets of air outlets, the installation plate is provided with a filter pressure reducing valve, a manual valve, a first precision pressure regulating valve, a second precision pressure regulating valve, a third precision pressure regulating valve, a pneumatic three-way valve, and a pneumatic two-way valve, the filter pressure reducing valve is correspondingly located on the side near the air inlet, and an air pipe is connected between the filter pressure reducing valve and the air inlet, a three-way connector is connected to the output end of the filter pressure reducing valve, and a first feed pipe is sleeved on each of the three ports of the output end of the three-way connector, wherein one end of two of the first feed pipes is respectively connected to the input ends of the first precision pressure regulating valve and the second precision pressure regulating valve, and a three-way valve is sleeved on one end of the other first feed pipe, and one output end of the three-way valve is connected to... There is a second feed pipe, the other end of which is connected to the input end of a third precision pressure regulating valve. The output ends of the first, second, and third precision pressure regulating valves are all connected to a first discharge pipe. The output ends of the first discharge pipes on the first and second precision pressure regulating valves are connected to a pneumatic three-way valve. The output end of the first discharge pipe on the third precision pressure regulating valve is connected to a manual valve. A second discharge pipe connects the manual valve and the pneumatic three-way valve. A first connecting pipe is connected to one output end of the manual valve, the other end of which is connected to a pneumatic two-way valve. A second connecting pipe is connected to the output end of the pneumatic three-way valve. The pipe at the other output end of the manual valve is connected to one end of the second connecting pipe via a tee, and the last port of the tee is connected to one of the air outlets via a pipe. The output end of the pneumatic two-way valve is connected to another air outlet via a pipe.

[0006] Preferably, a third discharge pipe is connected to another output port of the three-way valve, and the other end of the third discharge pipe is connected to a pneumatic two-way valve.

[0007] Preferably, the two air outlets are externally connected to cylinders, and the output ends of the cylinders are connected to rubber rollers.

[0008] The beneficial effects of this utility model are as follows: by setting the housing as the external structure and the internal installation structure is compact, it occupies less space. By setting a manual valve inside, the state of the rubber roller and the magnitude of the clamping force can be flexibly adjusted. At the same time, the manual valve can be adjusted in multiple modes, which can well adapt to different working conditions with different clamping force requirements. This reduces damage to the surface of the rubber roller due to insufficient pressure during subsequent use, thereby increasing the service life of the rubber roller. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a pneumatic principle diagram of this utility model;

[0011] Figure 3 This is a schematic diagram of the air circuit when the manual valve of this utility model is in state a;

[0012] Figure 4 This is a schematic diagram of the air circuit when the manual valve of this utility model is in state b;

[0013] Figure 5 This is a schematic diagram of the air circuit when the manual valve of this utility model is in state c.

[0014] In the diagram: 1. Housing; 2. Air inlet; 3. Air pipe; 4. One-to-three connector; 5. Filter pressure reducing valve; 6. T-connector; 7. Manual valve; 8.1. First precision pressure regulating valve; 8.2. Second precision pressure regulating valve; 8.3. Third precision pressure regulating valve; 9. Pneumatic three-way valve; 10. Pneumatic two-way valve; 11. Air outlet; 12. Cylinder; 13. Rubber roller; 14. First feed pipe; 15. First discharge pipe; 16. Third discharge pipe; 17. Second feed pipe; 18. Second discharge pipe; 19. First connecting pipe; 110. Second connecting pipe. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] Example: A pneumatic device for controlling the clamping force of a rubber roller, such as Figures 1-5As shown, the device includes a housing 1, inside which is a mounting plate for installing equipment. The top of the housing 1 has an air inlet 2 and two sets of air outlets 11. The mounting plate is equipped with a filter pressure reducing valve 5, a manual valve 7, a first precision pressure regulating valve 8.1, a second precision pressure regulating valve 8.2, a third precision pressure regulating valve 8.3, a pneumatic three-way valve 9, and a pneumatic two-way valve 10. The filter pressure reducing valve 5 is positioned near the air inlet 2, and an air pipe 3 connects the filter pressure reducing valve 5 to the air inlet 2. A three-way connector 4 is connected to the output end of the filter pressure reducing valve 5. The three ports of the output end of the 1-to-3 connector 4 are each fitted with a first feed pipe 14. One end of two of the first feed pipes 14 are respectively connected to the input ends of the first precision pressure regulating valve 8.1 and the second precision pressure regulating valve 8.2. One end of the other first feed pipe 14 is fitted with a tee 6. One output end of the tee 6 is connected to a second feed pipe 17. The other end of the second feed pipe 17 is connected to the input end of the third precision pressure regulating valve 8.3. The first precision pressure regulating valve 8.1, the second precision pressure regulating valve 8.2, and the third precision pressure regulating valve 8.3 are connected. Each of the three valves 3 has a first discharge pipe 15 connected to its output end. The output ends of the first discharge pipes 15 on the first precision pressure regulating valve 8.1 and the second precision pressure regulating valve 8.2 are connected to the pneumatic three-way valve 9. The output end of the first discharge pipe 15 on the third precision pressure regulating valve 8.3 is connected to the manual valve 7. A second discharge pipe 18 is connected between the manual valve 7 and the pneumatic three-way valve 9. A third discharge pipe 16 is connected to the other output port of the three-way valve 6. The other end of the third discharge pipe 16 is connected to the pneumatic two-way valve 10. One of the output ends of the manual valve 7 is connected to... A first connecting pipe 19 is connected to the other end of the first connecting pipe 19, which is connected to the pneumatic two-way valve 10. A second connecting pipe 110 is connected to the output end of the pneumatic three-way valve 9. The pipe of the other output end of the manual valve 7 is connected to one end of the second connecting pipe 110 through a three-way valve 6. The last port of the three-way valve 6 is connected to one of the air outlets 11 through a pipe. The output end of the pneumatic two-way valve 10 is connected to another air outlet 11 through a pipe. A cylinder 12 is connected to the outside of the two air outlets 11. A rubber roller 13 is connected to the output end of the cylinder 12.

[0017] The principle of this invention: Gas in the pipeline enters the pneumatic system through the inlet 2, and first passes through the filter and pressure reducing valve 5. This valve filters impurities from the gas to prevent pipeline blockage and stabilizes the gas pressure within a set range, preventing pressure fluctuations from affecting equipment operation. The filtered and pressure-reduced gas then passes through the three-way connector 4 to the next component.

[0018] One gas path passes through the first precision pressure regulating valve 8.1 to reach the pneumatic three-way valve 9; another gas path passes through the second precision pressure regulating valve 8.2 to reach the pneumatic three-way valve 9; two gas paths emerge from the pneumatic three-way valve 9, one path reaching the manual valve 7, and the other path passing through another three-way valve 6 to the outlet 11.

[0019] One gas path first passes through the three-way valve 6, which converts the one path into two. One path passes through the third precision pressure regulating valve 8.3 to reach the manual valve 7, while the other gas path reaches the pneumatic two-way valve 10 and then to the exhaust port.

[0020] The manual valve 7 can be adjusted to three states (a, b, and c) via a handle. Two gas streams exit from the manual valve 7: one through the three-way valve 6 to the outlet 11, and the other through the pneumatically controlled two-way valve 10 to the outlet 11. After setting the pressure of the three precision pressure regulating valves, switching the state of the manual valve 7 can achieve three states for the cylinder 12: rising, hovering, and pressing down. Moreover, the clamping force of the rubber roller 13 during pressing down can also be controlled by adjusting the pressure of the corresponding precision pressure regulating valve.

[0021] When the manual valve 7 handle is in position a, such as Figure 3 At this time, the gas direction in the air circuit is as follows: one gas comes out of the pipeline and passes through the first precision pressure regulating valve 8.1, the pneumatic three-way valve 9, and the manual valve 7 in sequence to reach the cylinder 12; another gas passes through the third precision pressure regulating valve 8.3, the manual valve 7, and the pneumatic two-way valve 10 in sequence to reach the cylinder 12. Because the pressure set by the first precision pressure regulating valve 8.1 is greater than the pressure of the third precision pressure regulating valve 8.3, the cylinder 12 can be lowered, thereby lowering the rubber roller 13 and increasing the clamping force of the rubber roller 13.

[0022] When the manual valve 7 handle is in position b, such as Figure 4 At this time, the direction of the gas in the air circuit is: it comes out of the pipe, passes through the third precision pressure regulating valve 8.3, and then passes through the manual valve 7 and the pneumatic two-way valve 10 to reach the cylinder 12. By adjusting the pressure displayed by the third precision pressure regulating valve 8.3, the pulling force of the cylinder 12 can be balanced with the gravity, so that the rubber roller 13 is in a suspended state.

[0023] When the manual valve 7 handle is in position c, such as Figure 5 At this time, the direction of the gas in the air circuit is as follows: it comes out of the pipe, passes through the second precision pressure regulating valve 8.2, and then passes through the manual valve 7 and the pneumatic two-way valve 10 to reach the cylinder 12. By adjusting the pressure displayed by the second precision pressure regulating valve, the cylinder 12 can be contracted, thereby causing the rubber roller 13 to be in an upward state.

[0024] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A pneumatic device for controlling the clamping force of a rubber roller, comprising a housing (1), characterized in that: The housing (1) has an internal mounting plate for installing equipment. The top of the housing (1) has an air inlet (2) and two sets of air outlets (11). The mounting plate is equipped with a filter pressure reducing valve (5), a manual valve (7), a first precision pressure regulating valve (8.1), a second precision pressure regulating valve (8.2), a third precision pressure regulating valve (8.3), a pneumatic three-way valve (9), and a pneumatic two-way valve (10). The filter pressure reducing valve (5) is positioned on the side closest to the air inlet (2), and an air pipe (3) connects the filter pressure reducing valve (5) to the air inlet (2). A three-way connector (4) is connected to the output end of the pressure reducing valve (5). Each of the three ports on the output end of the three-way connector (4) is fitted with a first feed pipe (14). Two of the first feed pipes (14) are connected at one end to the input ends of the first precision pressure regulating valve (8.1) and the second precision pressure regulating valve (8.2), respectively. A three-way valve (6) is fitted to one end of the other first feed pipe (14). A second feed pipe (17) is connected to one of the output ends of the three-way valve (6). The other end of the second feed pipe (17) is connected to the third precision pressure regulating valve (8.3). The input terminals are interconnected. The output terminals of the first precision pressure regulating valve (8.1), the second precision pressure regulating valve (8.2), and the third precision pressure regulating valve (8.3) are all connected to a first discharge pipe (15). The output terminals of the first discharge pipes (15) on the first and second precision pressure regulating valves (8.1 and 8.2) are interconnected with a pneumatic three-way valve (9). The output terminal of the first discharge pipe (15) on the third precision pressure regulating valve (8.3) is interconnected with a manual valve (7). A second discharge pipe (18) connects the manual valve (7) and the pneumatic three-way valve (9). The manual valve (7) has a first connecting pipe (19) connected to one of its output ends. The other end of the first connecting pipe (19) is connected to the pneumatic two-way valve (10). The pneumatic three-way valve (9) has a second connecting pipe (110) connected to its output end. The other output end of the manual valve (7) is connected to one end of the second connecting pipe (110) via a three-way valve (6). The last port of the three-way valve (6) is connected to one of the air outlets (11) via a pipe. The output end of the pneumatic two-way valve (10) is connected to the other air outlet (11) via a pipe.

2. The pneumatic device for controlling the clamping force of the rubber roller (13) according to claim 1, characterized in that: The third discharge pipe (16) is connected to another output port of the three-way valve (6), and the other end of the third discharge pipe (16) is connected to the pneumatic two-way valve (10).

3. The pneumatic device for controlling the clamping force of the rubber roller (13) according to claim 1, characterized in that: Two air outlets (11) are externally connected to cylinders (12), and rubber rollers (13) are connected to the output end of the cylinders (12).

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