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CN-122014704-A - Lifting cylinder of stripper and hydraulic control system thereof

CN122014704ACN 122014704 ACN122014704 ACN 122014704ACN-122014704-A

Abstract

The invention discloses a lifting cylinder of a stripper and a hydraulic control system thereof, which are applied to the field of hydraulic control of the stripper and comprise a stripper and a hydraulic control assembly, wherein the stripper comprises a plurality of groups of lifting cylinders, the hydraulic control assembly comprises an oil tank module and a circuit module, the oil tank module is communicated with the lifting cylinders, the oil tank module comprises an oil tank, a first temperature sensor and a first viscosity sensor are arranged in the oil tank, a first pump body is arranged outside the oil tank, an oil inlet end of the first pump body is connected with an oil tank pipeline, an oil outlet end of the first pump body is communicated with the circuit module, and one side of the oil tank is provided with a second pump body, a temperature control assembly and an oil pressure assembly.

Inventors

  • YANG ZHAO
  • YANG LIHONG
  • LU JUN

Assignees

  • 常州雕匠液压科技有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. The stripper lift cylinder and the hydraulic control system thereof comprise a stripper (1) and a hydraulic control assembly, and are characterized in that the stripper (1) comprises a plurality of groups of lift cylinders (2), and the hydraulic control assembly comprises an oil tank module and a circuit module; The circuit module is used for communicating the oil tank module with the lifting oil cylinder (2), the oil tank module comprises an oil tank (3), a first temperature sensor (4) and a first viscosity sensor (5) are arranged in the oil tank (3), a first pump body (6) is arranged outside the oil tank (3), the oil inlet end of the first pump body (6) is connected with the oil tank (3) through a pipeline, and the oil outlet end of the first pump body (6) is communicated with the circuit module; One side of the oil tank (3) is provided with a pump body II (7), a temperature control assembly and an oil pressure assembly; The circuit module comprises a first main oil pipe (12), a second main oil pipe (13), a first oil pipe (16), a second oil pipe (17), an oil inlet pipe (18) and an oil outlet pipe (19).
  2. 2. The lifting cylinder of a stripper machine and a hydraulic control system thereof according to claim 1, wherein the temperature control assembly comprises a first electromagnetic directional valve (9), a heater (10) and an oil cooler (11), two ends of a second pump body (7) are respectively connected with the first electromagnetic directional valve (9) and the oil tank (3) through pipelines, inlet ends of the heater (10) and the oil cooler (11) are respectively connected with the first electromagnetic directional valve (9) through pipelines, and outlet ends of the heater (10) and the oil cooler (11) are respectively communicated with the oil tank (3).
  3. 3. The lifting cylinder of the stripper machine and a hydraulic control system thereof according to claim 2, wherein the output end of the first pump body (6) is connected with the inlet end of the first main oil pipe (12), a pipeline of the first main oil pipe (12) close to the first pump body (6) is connected with a second temperature sensor (14), a second viscosity sensor (15) and a filter (8), a plurality of branch pipelines are arranged on the pipeline of the first main oil pipe (12), the first main oil pipe (12) is separated into a plurality of branch pipelines, each branch pipeline is respectively communicated with the inlet ends of different groups of oil inlet pipes (18), the outlet ends of the oil inlet pipes (18) are connected into the stripper machine (1) in a plugging mode, the outlet ends of the oil inlet pipes (18) are connected with a second electromagnetic reversing valve (20), and the pipeline of the oil inlet pipes (18) close to the second electromagnetic reversing valve (20) is connected with a third temperature sensor (21) and a third viscosity sensor (22).
  4. 4. The lifting cylinder of a stripper machine and a hydraulic control system thereof according to claim 3, wherein the outlet end of the second electromagnetic directional valve (20) is respectively connected with the third electromagnetic directional valve (23) and a backflow box (24) through pipelines, the backflow box (24) is arranged outside the stripper machine (1), the fourth pump body is arranged inside the backflow box (24), and the backflow box (24) is connected with the first electromagnetic directional valve (9) through pipelines.
  5. 5. The lifting cylinder of the stripper machine and a hydraulic control system thereof according to claim 4, wherein the second electromagnetic directional valve (20) and the third electromagnetic directional valve (23) are both arranged in the stripper machine (1), and the output end of the third electromagnetic directional valve (23) is communicated with the first oil pipe (16) and the second oil pipe (17); an oil port I (25) is formed in a shaft body far away from the output end of the lifting oil cylinder (2), an oil port II (26) is formed in a shaft body close to the output end of the lifting oil cylinder (2), and the oil pipe I (16) and the oil pipe II (17) are respectively connected with the oil port I (25) and the oil port II (26) through pipelines.
  6. 6. The lifting cylinder of a stripper machine and a hydraulic control system thereof according to claim 5, wherein the electromagnetic directional valve III (23) is connected with an oil outlet pipe (19), a plurality of groups of flow dividing valves are arranged on a pipeline of the main oil pipe II (13) to divide the main oil pipe II (13) into a plurality of branch pipelines, each group of branch pipelines is respectively communicated with the oil outlet pipe (19), the output end of the main oil pipe II (13) is communicated with the oil tank (3), and the oil pressure assembly comprises an oil pressure sensor I (27), an overflow valve (28), an energy accumulator (29), a throttle valve (30), an oil pressure sensor II (31), an oil pressure sensor III (32), an oil pressure sensor IV (33) and an oil pressure sensor V (34).
  7. 7. The lifting cylinder of a stripper machine and a hydraulic control system thereof according to claim 6, wherein the oil pressure sensor I (27) is arranged in the oil tank (3), the overflow valve (28) is connected with the output end of the pump body I (6) through the pipeline of the main oil pipe I (12), the energy accumulator (29) is connected in parallel on the pipeline of the main oil pipe I (12) between the overflow valve (28) and the viscosity sensor II (15), and the oil pressure sensor III (32) is connected on the pipeline of the main oil pipe I (12) downstream of a parallel interface of the energy accumulator (29); The throttle valve (30) and the oil pressure sensor II (31) are sequentially connected in series between the electromagnetic directional valve II (20) and the electromagnetic directional valve III (23), the oil pressure sensor IV (33) is provided with two groups, the two groups of oil pressure sensors IV (33) are symmetrically arranged on the pipeline of the oil pipe I (16) and the oil pipe II (17) respectively, and the oil pressure sensor V (34) is connected in series on the pipeline of the oil outlet pipe (19).
  8. 8. The lifting cylinder of the stripper machine and a hydraulic control system thereof according to claim 7, wherein the hydraulic control system comprises the following using method: When the demoulding machine (1) works, a hydraulic control assembly is started, so that the output end of the lifting oil cylinder (2) is driven to lift, and demoulding is realized; Detecting the state of hydraulic oil by using each group of viscosity sensors and temperature sensors to ensure the stable oil pressure of the hydraulic oil; and thirdly, the load of the stripper (1) changes along with different specifications of products, and the dynamic adjustment of the working condition and hydraulic oil parameters of the stripper (1) is realized on the basis of the first method and the second method.
  9. 9. The lift cylinder of a stripper machine and a hydraulic control system thereof according to claim 8, wherein the second method comprises the following working steps: the first step is that the temperature sensor I (4) and the viscosity sensor I (5) are utilized to detect the temperature and viscosity of hydraulic oil in the oil tank (3), and the temperature control component is utilized to regulate and control the temperature of the hydraulic oil in the oil tank (3); Detecting the viscosity change of the hydraulic oil in the process of conveying the hydraulic oil from the oil tank (3) to the lifting oil cylinder (2) by utilizing various groups of temperature sensors and viscosity sensors arranged outside the oil tank (3), and adjusting the oil temperature by utilizing the reflux tank (24) and a temperature control assembly to compensate the temperature loss of the hydraulic oil in the process of conveying, so that the fluctuation of the viscosity is ensured to be in an ideal range; Step three, on the basis of the step two, regulating and controlling the hydraulic oil pressure of hydraulic oil in a line module through an oil pressure component, and establishing a combined regulating and controlling system of the oil temperature, the viscosity and the oil pressure, so as to further ensure the thrust stability and the oil path safety of the lifting oil cylinder (2); Step four, detecting and obtaining heat loss of hydraulic oil in the conveying process, establishing a combined regulation and control system of oil temperature, viscosity and oil pressure in step three, and integrating data of all groups of sensors to ensure that the oil temperature, viscosity and oil pressure are all in a qualified range; And fifthly, when the electromagnetic directional valve III (23) switches oil paths, the flow direction change of hydraulic oil can generate instantaneous fluctuation in the primary oil pipe I (12) and the primary oil pipe II (13), the fluctuation is absorbed and compensated by the energy accumulator (29), the stability of oil pressure is ensured, the working stability of the lifting oil cylinder (2) is further improved, and the working precision of the stripper (1) is improved.
  10. 10. The lifting cylinder of the stripper machine and a hydraulic control system thereof according to claim 8, wherein the method III comprises the following working steps: Step one, working condition identification, namely determining the telescopic operation of the lifting oil cylinder (2) through the switching state of the electromagnetic directional valve III (23), avoiding misjudgment, and judging the load state of the stripper machine (1) by combining the real detection data of the oil pressure sensor II (31) and the oil pressure sensor IV (33) in the step three; step two, according to the working condition detection result in the step one, the temperature compensation in the step two of the method, the oil pressure regulation and control in the step three of the method and the fluctuation compensation of the accumulator (29) in the step five are combined, and parameters of hydraulic oil are adjusted in a reasonable range; and thirdly, in the process of working condition adaptation adjustment, comparing the real-time data obtained through detection in the second step and the third step of the method with standard parameters of the current working condition, and if deviation occurs, dynamically adjusting the parameters of the hydraulic oil to a standard range by using the reflux tank (24), the temperature control assembly, the overflow valve (28) and the throttle valve (30), so that the parameters of the hydraulic oil are quickly restored to form a closed-loop control system which is detected and adjusted to be fed back to the detection and adjustment, and further improving the working efficiency of the hydraulic control system.

Description

Lifting cylinder of stripper and hydraulic control system thereof Technical Field The invention relates to the technical field of hydraulic control of a stripper, in particular to a lifting oil cylinder of the stripper and a hydraulic control system of the lifting oil cylinder. Background The stripper is a key automatic device for realizing automatic separation of a formed product and a die in industry, and has the core functions of stably and safely removing the cured and formed product from a die cavity, and the lifting oil cylinder is a core execution part of the stripper and is used for providing linear pushing force and pulling force by virtue of extension and contraction of the lifting oil cylinder so as to realize the removal of the product. In the process of conveying hydraulic oil, the hydraulic system further influences the working stroke of the lifting oil cylinder due to fluctuation of viscosity and oil pressure caused by loss of the temperature of the hydraulic oil, and in the prior art, the hydraulic oil is regulated and controlled still in a simple temperature control layer, and the viscosity and the oil pressure are not related only to the numerical value of the temperature, so that the control method of the hydraulic system is complex, and the production efficiency is influenced. Therefore, the lifting oil cylinder of the stripper and the hydraulic control system thereof are designed, the combined regulation and control of hydraulic oil are realized, and the working stability of the stripper is improved. Disclosure of Invention The invention aims to provide a lifting cylinder of a stripper and a hydraulic control system thereof, which are used for solving the problems in the background technology. In order to solve the technical problems, the invention provides the technical scheme that the lifting oil cylinder of the stripper and the hydraulic control system thereof comprise a stripper and a hydraulic control assembly, wherein the stripper comprises a plurality of groups of lifting oil cylinders, and the hydraulic control assembly comprises an oil tank module and a circuit module; The circuit module is used for communicating the oil tank module with the lifting oil cylinder, the oil tank module comprises an oil tank, a first temperature sensor and a first viscosity sensor are arranged in the oil tank, a first pump body is arranged outside the oil tank, an oil inlet end of the first pump body is connected with the oil tank through a pipeline, and an oil outlet end of the first pump body is communicated with the circuit module; One side of the oil tank is provided with a pump body II, a temperature control assembly and an oil pressure assembly; The circuit module comprises a first main oil pipe, a second main oil pipe, a first oil pipe, a second oil pipe, an oil inlet pipe and an oil outlet pipe. According to the technical scheme, the temperature control assembly comprises the electromagnetic directional valve I, the heater and the oil cooler, two ends of the pump body II are respectively connected with the electromagnetic directional valve I and the oil tank pipeline, the inlet ends of the heater and the oil cooler are respectively connected with the electromagnetic directional valve I through the pipeline, and the outlet ends of the heater and the oil cooler are respectively communicated with the oil tank. According to the technical scheme, the output end of the pump body I is connected with the inlet end of the main oil pipe I, a pipeline, which is close to the pump body I, of the main oil pipe I is connected with the temperature sensor II, the viscosity sensor II and the filter, a plurality of groups of flow dividing valves are arranged on the pipeline of the main oil pipe I, the main oil pipe I is divided into a plurality of branch pipelines, each group of branch pipelines are respectively communicated with the inlet end of the oil inlet pipe, the outlet end pipeline of the oil inlet pipe is inserted into the inside of the stripper, the outlet end of the oil inlet pipe is connected with the electromagnetic directional valve II, and the pipeline, which is close to the electromagnetic directional valve II, of the oil inlet pipe is connected with the temperature sensor III and the viscosity sensor III. According to the technical scheme, the outlet end of the electromagnetic directional valve II is connected with the electromagnetic directional valve III and the backflow box through pipelines respectively, the backflow box is arranged outside the stripper, the pump body IV is arranged inside the backflow box, and the backflow box is connected with the electromagnetic directional valve I through a pipeline. According to the technical scheme, the second electromagnetic reversing valve and the third electromagnetic reversing valve are both arranged in the stripper, and the output end of the third electromagnetic reversing valve is communicated with the first oil pipe and the second oil pipe; a