Servo control loop device of spinning machine equipment
By introducing a servo control circuit device into the spinning machine, the hydraulic circuit is precisely controlled by servo valve blocks and control components, which solves the problem of resource waste caused by complex circuits of multiple valve blocks and realizes high-precision displacement control and energy-efficient spinning machine operation.
Patent Information
- Application Number
- CN202422302495.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The complex circuit control of multiple valve blocks in existing spinning machines leads to resource waste, makes it difficult to achieve high-precision displacement control, and is costly.
The system employs a servo control loop device, including a servo valve block, a control component, and a pressure sensor. By precisely controlling the pressure and flow of the hydraulic circuit, it simplifies the control of multi-way valve groups and achieves high-precision displacement control.
It achieves high-precision displacement control of spinning machines, simplifies multi-way valve group control, reduces costs, and improves the working efficiency and energy saving of spinning machines.
Smart Images
Figure CN223578333U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spinning machine equipment technical field, concretely is servo control loop device of spinning machine equipment. BACKGROUND
[0002] With the development of society, spinning machine serves lamps and lanterns, kitchenware, automobile, fan, packaging, hardware, chemical industry and building and many other industries, people's control precision requirement of scrapless metal forming technology is continuously improved, in order to meet the higher precision control performance of the wall thickness and profile of various spinning machine products to workpiece, usually many valve groups are equipped to control the high-precision displacement stroke of oil cylinder, and each group of oil cylinder needs many valve groups, which will cause the repetitive waste of cost.
[0003] Therefore, the market urgently needs to improve the complex control loop method, to meet the high-precision displacement control requirement in the spinning process, a servo control loop is designed for high-precision displacement control spinning machine equipment, so as to realize the simultaneous control of multiple valve groups and oil cylinder, and realize higher precision and simple displacement control, so that the spinning machine works more energy-saving and efficient, thereby saving cost. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of control loop of accurate and efficient oil cylinder displacement to solve the waste resource phenomenon of complex loop control spinning machine equipment oil supply of multiple valve blocks in the use process of current spinning machine equipment on the market proposed in the above background art.
[0005] To achieve the above object, the utility model provides the following technical scheme, a kind of servo control loop device of spinning machine equipment, comprising: servo valve block, the oil inlet and oil return of servo valve block front side are equipped, control quantity component, the control quantity component is equipped in the servo valve block, for controlling the pressure and flow of two oil chambers of oil cylinder A and B, the control quantity component includes: electromagnetic reversing valve, cartridge type hydraulic control check valve a, cartridge type hydraulic control check valve b, pressure sensor a, pressure sensor b and high-frequency servo valve, the top of servo valve block is equipped with electromagnetic reversing valve, one side of electromagnetic reversing valve is equipped with high-frequency servo valve, one side of servo valve block is equipped with pressure stabilizing accumulator and cartridge type hydraulic control check valve a, the back side of servo valve block is equipped with cartridge type hydraulic control check valve b, the other side of servo valve block is equipped with pressure sensor a and pressure sensor b.
[0006] Further, the oil inlet one end is equipped with the input P port of electromagnetic reversing valve and high-frequency servo valve respectively It can form main oil inlet, the port of pressure stabilizing accumulator is directly connected to the main oil inlet of oil inlet.
[0007] Further, one end of the oil return port is connected with the output T port of the electromagnetic reversing valve and the high-frequency servo valve respectively to form a main oil return path.
[0008] Further, the A port of the high-frequency servo valve is connected with the A port of the cartridge valve a, the B port of the cartridge valve a is connected with the pressure sensor a, one end of the pressure sensor a is connected with the bottom of the oil cylinder and is in communication with the inside of the oil cylinder A cavity.
[0009] Further, the B port of the high-frequency servo valve is connected with the A port of the cartridge valve b, the B port of the cartridge valve b is connected with the pressure sensor b, one end of the pressure sensor b is connected with the bottom of the oil cylinder and is in communication with the inside of the oil cylinder B cavity.
[0010] Further, the cartridge valve a is connected with the input X port of the cartridge valve b and is connected with the B port of the electromagnetic reversing valve, and the A port of the electromagnetic reversing valve is in a normally closed state.
[0011] Further, two support feet are arranged at the bottom of the servo valve block.
[0012] The utility model provides a kind of servo control loop device of spinning machine equipment, with following beneficial effects:
[0013] The utility model has the advantages that the pressure and flow of hydraulic circuit can be accurately controlled by the setting of control quantity component, and then high-precision displacement control equipment on spinning machine can be realized, so that the situation of multiple valve group simultaneously controlling oil cylinder is simplified, higher-precision and simple displacement control is realized, so that spinning machine works more energy-saving and efficient, and cost is saved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is the schematic diagram of the loop principle of the utility model.
[0015] Fig. 2 It is the overall structure sectional view of the utility model.
[0016] Fig. 3 It is the overall structure plan view of the utility model.
[0017] Figs. 1-3 Middle: 1, electromagnetic reversing valve; 2, pressure stabilizing accumulator; 3, high-frequency servo valve; 4, cartridge valve a; 41, cartridge valve b; 5, pressure sensor a; 51, pressure sensor b; 6, servo valve block; 7, support foot. DETAILED DESCRIPTION
[0018] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0019] The embodiment of the present application provides a servo control loop device of a spinning machine equipment, which can accurately control the pressure and flow of a hydraulic circuit through the setting of a control component, and then can realize high-precision displacement control of the equipment on the spinning machine, so as to simplify the simultaneous control of the oil cylinder by the multi-way valve group, and realize higher-precision and simple displacement control, so that the spinning machine works more energy-saving and efficiently, thereby saving cost.
[0020] The servo control loop device of the spinning machine equipment will be described in detail below. It should be noted that the description order of the following embodiments is not used as a limitation on the preferred order of the embodiments.
[0021] The present application will be described in detail below with reference to the drawings and specific embodiments.
[0022] Embodiment 1
[0023] Please refer to Figs. 1-3 In the present embodiment, the servo control loop device of the spinning machine equipment comprises: a servo valve block 6, an oil inlet 61 and an oil return port 62 are arranged on the front side of the servo valve block 6, two supporting feet 7 are arranged on the bottom of the servo valve block 6, the two supporting feet 7 are symmetrically arranged, a control component is arranged on the servo valve block 6, which is used to control the pressure and flow of two oil chambers of the oil cylinder A and B, the control component comprises: an electromagnetic reversing valve 1, a plug-in hydraulic control check valve a4, a plug-in hydraulic control check valve b41, a pressure sensor a5, a pressure sensor b51 and a high-frequency servo valve 3, the electromagnetic reversing valve 1 is arranged on the top of the servo valve block 6, the high-frequency servo valve 3 is arranged on one side of the electromagnetic reversing valve 1, the stable pressure accumulator 2 and the plug-in hydraulic control check valve a4 are arranged on one side of the servo valve block 6, the plug-in hydraulic control check valve b41 is arranged on the back side of the servo valve block 6, and the pressure sensor a5 and the pressure sensor b51 are arranged on the other side of the servo valve block 6.
[0024] In use, the oil supply pipe of the hydraulic oil station is connected with the oil inlet 61, the oil return pipe of the hydraulic oil station is connected with the oil return port 62, and the AB pipe of the oil cylinder is connected with the output end of the pressure sensor a5 and the pressure sensor b51 respectively, the servo valve block 6 can be installed to the specified position through the supporting foot 7, the electromagnetic reversing valve 1, the cartridge valve a4, the cartridge valve b41, the pressure sensor a5, the pressure sensor b51 and the high-frequency servo valve 3 are all installed on the servo valve block 6, the structure is compact, the space occupation rate is small, and the installation is convenient. The pressure and flow of the two oil chambers of the oil cylinder A and B can be accurately controlled through the control assembly, so that the piston rod of the oil cylinder can be accurately moved to the specified position.
[0025] Example 2
[0026] On the basis of example 1, the oil inlet 61 is provided with a main oil inlet path connected with the input P port of the electromagnetic reversing valve 1 and the high-frequency servo valve 3 respectively, the port of the pressure stabilizing accumulator 2 is directly connected to the main oil inlet path of the oil inlet 61, the oil return port 62 is connected with the output T port of the electromagnetic reversing valve 1 and the high-frequency servo valve 3 respectively to form a main oil return path, the A port of the high-frequency servo valve 3 is connected with the A port of the cartridge valve a4, the B port of the cartridge valve a4 is connected with the pressure sensor a5, one end of the pressure sensor a5 is connected with the bottom of the oil cylinder and is in communication with the inside of the oil cylinder A cavity, the B port of the high-frequency servo valve 3 is connected with the A port of the cartridge valve b41, the B port of the cartridge valve b41 is connected with the pressure sensor b51, one end of the pressure sensor b51 is connected with the bottom of the oil cylinder and is in communication with the inside of the oil cylinder B cavity, the input X port of the cartridge valve a4 is connected with the cartridge valve b41, and the B port of the electromagnetic reversing valve 1 is connected with the input X port of the cartridge valve a4 and the cartridge valve b41, and the A port of the electromagnetic reversing valve 1 is in a normally closed state.
[0027] When the piston rod of the oil cylinder needs to do piston movement, the hydraulic oil of the hydraulic oil station flows into the oil inlet 61 through the oil supply pipe, and then flows into the servo valve block 6. The high-frequency servo valve 3 is started to switch under the action of electricity. At this time, the P port of the high-frequency servo valve 3 is communicated with the B port, and the A port of the high-frequency servo valve 3 is communicated with the T port. At the same time, the electromagnetic reversing valve 1 is started to switch under the action of electricity. At this time, the A end of the electromagnetic reversing valve 1 is communicated with the T end, and the P end is communicated with the B end. Part of the hydraulic oil flows from the B end of the electromagnetic reversing valve 1 to the X port of the cartridge-mounted hydraulic control check valve a4 and the cartridge-mounted hydraulic control check valve b41. The cartridge-mounted hydraulic control check valve a4 and the cartridge-mounted hydraulic control check valve b41 accept the hydraulic signal that the A port and the B port are bidirectionally communicated. The hydraulic oil flows from the P port of the high-frequency servo valve 3 to the B port, and then flows into the A port of the cartridge-mounted hydraulic control check valve b41 from the B port, flows to the B oil chamber of the oil cylinder, and further pushes the piston rod to retract. The piston rod extrudes the hydraulic oil in the A oil chamber of the oil cylinder. The hydraulic oil in the A oil chamber flows out from the B port of the cartridge-mounted hydraulic control check valve a4, flows into the A port from the B port, and then flows into the A port of the high-frequency servo valve 3. Since the A port is communicated with the T port at this time, the hydraulic oil in the A oil chamber flows back to the hydraulic station. In this way, the piston rod of the oil cylinder retracts.
[0028] When the high-frequency servo valve 3 loses power, it resets, at which time the B port of the high-frequency servo valve 3 communicates with the T port, the T port communicates with the main oil return, the A port communicates with the P port, the P port communicates with the main oil inlet, hydraulic oil flows from the P port of the high-frequency servo valve 3 to the A port, and then from the A port of the high-frequency servo valve 3 to the A port of the cartridge-type hydraulic control non-return valve a4, hydraulic oil flows from the A port of the cartridge-type hydraulic control non-return valve a4 into the B port, flows into the A oil chamber of the oil cylinder, and under the action of the hydraulic oil, pushes the piston rod outwards, the piston rod extrudes the hydraulic oil in the B oil chamber of the oil cylinder, under the action of the pressure, the hydraulic oil in the B oil chamber of the oil cylinder flows out, flows from the B port of the cartridge-type hydraulic control non-return valve b41 into the A port, hydraulic oil flows from the B port of the high-frequency servo valve 3 into the T port, and then flows out, flows into the main oil return, and the hydraulic oil in the B oil chamber of the oil cylinder flows back to the hydraulic station, so that the piston rod of the oil cylinder is pushed out, by controlling the power-on and power-off of the high-frequency servo valve 3, the function of the piston movement of the oil cylinder is realized, the pressures of the AB two oil chambers of the oil cylinder can be detected by the pressure sensor a5 and the pressure sensor b51, and the specified pressure values of the AB two oil chambers of the oil cylinder can be set by the pressure sensor a5 and the pressure sensor b51, when the piston rod of the oil cylinder is pushed out, the pressure sensor a5 detects the pressure of the A oil chamber of the oil cylinder in real time, when the pressure reaches a certain set value, the pressure sensor a5 sends an electric signal to the control center, so that the high-frequency servo valve 3 is powered on and changes direction, and by analogy, when the piston rod of the oil cylinder is retracted, the pressure sensor b51 detects the pressure in the B oil chamber of the oil cylinder in real time, and when the set value is reached, an electric signal is generated, so that the high-frequency servo valve 3 loses power and changes direction, the size of the values set by the pressure sensor a5 and the pressure sensor b51 determines the movement distance of the piston rod when it is pushed out and retracted, so as to achieve the function of precise control of the pressure and flow of the AB two oil chambers of the oil cylinder, so as to achieve the function of precise positioning of the movement of the piston rod of the oil cylinder, and the stable pressure accumulator 2 connected to the main oil inlet can absorb the pulsation of the hydraulic oil and stabilize the oil pressure.
[0029] In the case of the oil cylinder not working, the electromagnetic reversing valve 1 is in a power-off state, at this time the P port of the electromagnetic reversing valve 1 communicates with the A port, and since the A port of the electromagnetic reversing valve 1 is normally closed, the hydraulic oil cannot flow into the X port of the cartridge valve hydraulic control check valve a4 and the cartridge valve hydraulic control check valve b41 through the electromagnetic reversing valve 1, and the cartridge valve hydraulic control check valve a4 and the cartridge valve hydraulic control check valve b41 cannot receive the hydraulic signal, so that the A port and the B port of the cartridge valve hydraulic control check valve a4 and the cartridge valve hydraulic control check valve b41 can only be unidirectionally passed, and the hydraulic oil cannot flow from the B port to the A port of the cartridge valve hydraulic control check valve a4 and the cartridge valve hydraulic control check valve b41 and then flow into the main oil return line, at this time the cartridge valve hydraulic control check valve a4 and the cartridge valve hydraulic control check valve b41 are in a closed state, and the high-frequency servo valve 3 is also not powered, but since the oil in the two oil chambers of the oil cylinder cannot flow out, it also cannot flow from the A port of the cartridge valve hydraulic control check valve a4 and the cartridge valve hydraulic control check valve b41, so as to keep the oil pressure in the oil cylinder AB cavity. When starting again, the oil cylinder can continue the uncompleted action.
[0030] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.
[0031] The servo control circuit device of the spinning machine equipment provided by the embodiment of the application is described in detail above, and the principle and implementation manner of the application are described by applying specific examples in this paper. The above embodiment is only used to help understand the technical solution and core idea of the application; those skilled in the art should understand that the technical solution recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the application.
Claims
1. A servo control loop device for a spinning machine, characterized in that, include: Servo valve block (6), the servo valve block (6) is provided with an oil inlet (61) and an oil return port (62) on the front side; The control component is located on the servo valve block (6) and is used to control the pressure and flow of the two oil chambers of cylinder A and B. The control component includes: electromagnetic directional valve (1), cartridge hydraulic control check valve a (4), cartridge hydraulic control check valve b (41), pressure sensor a (5), pressure sensor b (51) and high frequency servo valve (3). The servo valve block (6) is provided with an electromagnetic reversing valve (1) on the top, a high-frequency servo valve (3) is provided on one side of the electromagnetic reversing valve (1), a voltage accumulator (2) and a cartridge-type hydraulic control check valve a (4) are provided on one side of the servo valve block (6), a cartridge-type hydraulic control check valve b (41) is provided on the back side of the servo valve block (6), and a pressure sensor a (5) and a pressure sensor b (51) are provided on the other side of the servo valve block (6).
2. The servo control loop device for the spinning machine according to claim 1, characterized in that, One end of the oil inlet (61) is provided with a main oil inlet path that is connected to the input P port of the electromagnetic reversing valve (1) and the high-frequency servo valve (3) respectively. The port of the voltage accumulator (2) is directly connected to the main oil inlet path of the oil inlet (61).
3. The servo control loop device for the spinning machine according to claim 1, characterized in that, One end of the return oil port (62) is connected to the output T port of the electromagnetic reversing valve (1) and the high-frequency servo valve (3) respectively to form the main return oil circuit.
4. The servo control loop device for the spinning machine according to claim 1, characterized in that, The A port of the high-frequency servo valve (3) is connected to the A port of the cartridge-type hydraulic check valve a (4), the B port of the cartridge-type hydraulic check valve a (4) is connected to the pressure sensor a (5), and one end of the pressure sensor a (5) is connected to the bottom of the cylinder and communicates with the inside of the cylinder A cavity.
5. The servo control loop device for the spinning machine according to claim 1, characterized in that, The B port of the high-frequency servo valve (3) is connected to the A port of the cartridge-type hydraulic check valve b (41), the B port of the cartridge-type hydraulic check valve b (41) is connected to the pressure sensor b (51), and one end of the pressure sensor b (51) is connected to the bottom of the cylinder and communicates with the inside of the cylinder B cavity.
6. The servo control loop device for the spinning machine according to claim 3, characterized in that, The cartridge-type hydraulic control check valve a (4) is connected to the input X port of the cartridge-type hydraulic control check valve b (41) and to the B port of the solenoid directional valve (1). The A port of the solenoid directional valve (1) is normally closed.
7. The servo control loop device for the spinning machine according to claim 1, characterized in that, The servo valve block (6) has two support feet (7) at its bottom, and the two support feet (7) are arranged symmetrically.