Wrapper control system for withdrawing and straightening bottoming

Abstract

The wrapper control system comprises an electromagnetic proportional directional valve, a first electromagnetic directional valve and a second electromagnetic directional valve, the electromagnetic proportional directional valve is connected with a wrapper walking oil cylinder, the first electromagnetic directional valve is connected with a wrapper holding oil cylinder, and the second electromagnetic directional valve is connected with a wrapper tensioning oil cylinder; the output end of the PLC is electrically connected with the control ends of the electromagnetic proportional directional valve, the first electromagnetic directional valve and the second electromagnetic directional valve. The electric control system further comprises a first proximity switch, a second proximity switch, a third proximity switch, a fourth proximity switch, a fifth proximity switch, a sixth proximity switch, a pressure sensor and an encoder which are connected with the PLC. The electric control system and the hydraulic system are arranged, stable operation of the wrapper is achieved through the electromagnetic proportional directional valve, and one-key work of the wrapper is achieved through the electric control system.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum material processing, in particular to a control system of a winding machine for tensioning, straightening and bottoming. Background Art

[0002] The tension and bending straightening machine is a metal plate and strip processing equipment. Through stretching and bending and other process methods, the metal plate is leveled and its internal stress is eliminated to achieve the effect of improving the quality and performance of the material. Tensile straightening primer refers to the process of performing some auxiliary processing to increase the support and positioning accuracy of the metal plate to ensure that the metal plate can pass through the tension straightening machine smoothly and obtain the required shape and size during the tension straightening process, so as to ensure the smooth progress of the tension straightening process. Tensile straightening primer is an important part of the tension straightening process, which is completed by the auxiliary coiling machine. Tensile straightening primer can ensure that the metal plate obtains the accurate shape and size during the tension straightening process, thereby improving product quality and production efficiency.

[0003] During the process of straightening and bottoming, the staff needs to control the coiling machine to perform three actions, which are realized by three switching switches, including the coiling machine frame moving forward and backward, the coiling machine arm raising and lowering, and the coiling machine belt tightening and loosening. Slow manual operation will lead to the following problems:

[0004] (1) Failure to withdraw in time may cause an increase in waste at the bottom of the sleeve;

[0005] (2) The advance and retreat of the auxiliary coiler and the tension of the belt of the auxiliary coiler are both controlled by a 3-position solenoid valve. The advance and retreat speed of the auxiliary coiler cannot be automatically controlled, and the belt tensioning cannot achieve automatic pressure control, resulting in hydraulic shock when the frame moves forward and backward. The large vibration of the frame often causes increased wear and cracking of the hydraulic cylinder base;

[0006] (3) The belt tension of the auxiliary winding machine is also damaged due to excessive tension force caused by operational reasons, which reduces the service life.

[0007] Therefore, a control system for a rolling machine is urgently needed to realize one-key operation of the rolling machine. Summary of the invention

[0008] In order to solve the problem that the existing auxiliary coiling machine has slow operation during the straightening and bottoming operation, the utility model proposes a control system for an auxiliary coiling machine for straightening and bottoming, which is equipped with an electric control system and a hydraulic system. The electromagnetic proportional reversing valve is used to realize the smooth operation of the auxiliary coiling machine. The state of the auxiliary coiling machine is detected by a first proximity switch, a second proximity switch, a third proximity switch, a fourth proximity switch, a fifth proximity switch, a sixth proximity switch, a pressure sensor and an encoder. The operation feedback of the auxiliary coiling machine is realized by a PLC controller, which provides a hardware basis for one-key operation of the auxiliary coiling machine.

[0009] In order to achieve the above-mentioned purpose, the utility model provides a control system for a tension-correcting and bottoming auxiliary coiling machine, a control system for a tension-correcting and bottoming auxiliary coiling machine, including an auxiliary coiling machine, a hydraulic system and an electric control system, the auxiliary coiling machine including a frame, a bracket, an arm, a winding guide roller and a belt, the electric control system including a PLC controller, the hydraulic system including a hydraulic pipeline, an auxiliary coiling machine travel cylinder, an auxiliary coiling machine clamping cylinder and an auxiliary coiling machine tensioning cylinder, the auxiliary coiling machine travel cylinder is used to drive the frame to move, the auxiliary coiling machine travel cylinder is used to drive the arm to rise and fall, the auxiliary coiling machine tensioning cylinder is used to control the belt tensioning, and an electromagnetic proportional reversing valve, a first electromagnetic reversing valve and a second electromagnetic reversing valve are arranged on the hydraulic pipeline, the electromagnetic proportional reversing valve is respectively connected to the left chamber and the right chamber of the auxiliary coiling machine travel cylinder, the first electromagnetic reversing valve is respectively connected to the left chamber and the right chamber of the auxiliary coiling machine clamping cylinder, and the second electromagnetic reversing valve is connected to the left chamber and the right chamber of the auxiliary coiling machine tensioning cylinder;

[0010] The output end of the PLC controller is electrically connected to the control end of the electromagnetic proportional reversing valve, the first electromagnetic reversing valve and the second electromagnetic reversing valve, and the electric control system also includes a first proximity switch, a second proximity switch, a third proximity switch, a fourth proximity switch, a fifth proximity switch, a sixth proximity switch, a pressure sensor and an encoder electrically connected to the input end of the PLC controller

[0011] Optimize the hardware configuration of the PLC controller to achieve closed-loop control and provide a hardware foundation for one-button control.

[0012] Further, the first proximity switch, the second proximity switch, the fifth proximity switch and the sixth proximity switch are all fixed to the bracket, and the first proximity switch, the second proximity switch, the fifth proximity switch and the sixth proximity switch are used to detect the position of the rack;

[0013] The third proximity switch and the fourth proximity switch are both fixed to the bracket, and the third proximity switch and the fourth proximity switch are used to detect the arm position;

[0014] The pressure sensor is connected to the tensioning cylinder of the auxiliary coiling machine, and the pressure sensor is used to detect the pressure of the hydraulic pipeline at the position of the tensioning cylinder of the auxiliary coiling machine;

[0015] The encoder is fixed to the winding guide roller, and the encoder is used to detect the length of the aluminum material.

[0016] Furthermore, the hydraulic pipeline includes an oil inlet, a stop valve, a filter, a first pipeline, a second pipeline and a third pipeline, and the oil inlet is connected to the first pipeline, the second pipeline and the third pipeline respectively through the stop valve and the filter.

[0017] Furthermore, the first pipeline is connected to an electromagnetic proportional reversing valve, an output end of the electromagnetic proportional reversing valve is connected to a double hydraulically controlled one-way valve, an output end of the double hydraulically controlled one-way valve is connected to a one-way valve, and the one-way valve is connected to a traveling cylinder of the auxiliary winding machine.

[0018] The hydraulic pipeline structure is optimized to achieve stable hydraulic drive of the frame.

[0019] Furthermore, the second pipeline is connected to a stop valve, and the second pipeline is connected to the first solenoid reversing valve through the stop valve. The output end of the first solenoid reversing valve is sequentially connected to a double hydraulically controlled one-way valve and a double one-way throttle valve, and the other end of the double one-way throttle valve is connected to a one-way valve, and the double one-way throttle valve is connected to two auxiliary winding machine holding cylinders through the one-way valve.

[0020] The hydraulic pipeline structure is optimized to achieve smooth hydraulic drive of the boom.

[0021] Furthermore, the third pipeline is connected to a stop valve, the second pipeline is connected to a second electromagnetic reversing valve through the stop valve, the output end of the second electromagnetic reversing valve is sequentially connected to a double hydraulically controlled one-way valve and a double one-way throttle valve, the other end of the double one-way throttle valve is connected to a one-way valve, the double one-way throttle valve is connected to the auxiliary winding machine tensioning cylinder through the one-way valve, and a pressure sensor is connected between the auxiliary winding machine tensioning cylinder and the one-way valve.

[0022] The hydraulic pipeline structure is optimized to achieve belt tensioning, smooth speed regulation and stable hydraulic drive.

[0023] Furthermore, the PLC controller is communicatively connected to an HMI module.

[0024] Set up the HMI module to facilitate human-computer interaction.

[0025] Through the above technical solution, the beneficial effects of the utility model are:

[0026] The utility model provides a hardware foundation for the closed-loop one-button control of the straightening and bottoming operation of the auxiliary coiling machine. The PLC controller receives the signals of the first proximity switch, the second proximity switch, the third proximity switch, and the fourth proximity switch to obtain the position of the frame, and controls the auxiliary coiling machine travel cylinder through the electromagnetic proportional reversing valve to ensure automatic and smooth speed regulation of the frame to avoid hydraulic shock; the PLC controller receives the signals of the third proximity switch and the fourth proximity switch to obtain the position of the frame, and controls the auxiliary coiling machine clamping cylinder through the first electromagnetic reversing valve to ensure automatic and smooth operation of the arm; the PLC controller receives the input signals of the encoder and the pressure sensor, controls the second electromagnetic reversing valve, and controls the auxiliary coiling machine tensioning cylinder through the second electromagnetic reversing valve to avoid hydraulic shock and belt damage. While reducing the workload of the operator, it also increases the accuracy and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the hydraulic system of a control system of a tension and leveling auxiliary rolling machine of the utility model;

[0028] Figure 2 The utility model is a schematic diagram of the electric control system of a control system of an auxiliary winding machine for tensioning, straightening and bottoming.

[0029] Figure numbers: 1 is a PLC controller, 2 is a traveling cylinder of an auxiliary coiling machine, 3 is a holding cylinder of an auxiliary coiling machine, 4 is a tensioning cylinder of an auxiliary coiling machine, 6 is an electromagnetic proportional reversing valve, 7 is a first electromagnetic reversing valve, 8 is a second electromagnetic reversing valve, 9 is a first proximity switch, 10 is a second proximity switch, 11 is a pressure sensor, 12 is an encoder, 13 is a stop valve, 14 is a filter, 15 is a double hydraulically controlled one-way valve, 16 is a one-way valve, 17 is a double one-way throttle valve, 18 is an HMI module, 19 is a third proximity switch, 20 is a fourth proximity switch, 21 is a fifth proximity switch, and 22 is a sixth proximity switch. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0031] Example 1

[0032] like Figure 1~2 As shown, a control system of a winding machine for tensioning and leveling, comprising a winding machine, a hydraulic system and an electric control system, wherein the winding machine comprises a frame, a bracket, an arm, a winding guide roller and a belt, the electric control system comprises a PLC controller 1, the hydraulic system comprises a hydraulic pipeline, a winding machine travel cylinder 2, a winding machine clamping cylinder 3 and a winding machine tensioning cylinder 4, the winding machine travel cylinder 2 is used to drive the frame to move, the winding machine travel cylinder 2 is used to drive the arm to rise and fall, the winding machine tensioning cylinder 4 is used to control the belt tensioning, and an electromagnetic proportional reversing valve 6, a first electromagnetic reversing valve 7 and a second electromagnetic reversing valve 8 are arranged on the hydraulic pipeline, the electromagnetic proportional reversing valve 6 is respectively connected to the left chamber and the right chamber of the winding machine travel cylinder 2, the first electromagnetic reversing valve 7 is respectively connected to the left chamber and the right chamber of the winding machine clamping cylinder 3, and the second electromagnetic reversing valve 8 is connected to the left chamber and the right chamber of the winding machine tensioning cylinder 4;

[0033] The output end of the PLC controller 1 is connected to the SV1 and SV2 ends of the electromagnetic proportional reversing valve 6, the output end of the PLC controller 1 is connected to the YV1 and YV2 ends of the first electromagnetic reversing valve, and the output end of the PLC controller 1 is connected to the YV3 and YV4 ends of the second electromagnetic reversing valve 8;

[0034] The electric control system further includes a first proximity switch 9 , a second proximity switch 10 , a third proximity switch 19 , a fourth proximity switch 20 , a fifth proximity switch 21 , a sixth proximity switch 22 , a pressure sensor 11 and an encoder 12 , which are electrically connected to the input end of the PLC controller 1 .

[0035] The first proximity switch 9, the second proximity switch 10, the third proximity switch 19, the fourth proximity switch 20, the fifth proximity switch 21 and the sixth proximity switch 22 include one or a combination of inductive proximity switches, capacitive proximity switches and magnetic proximity switches, and in the present embodiment they are capacitive proximity switches.

[0036] Preferably, the first proximity switch 9, the second proximity switch 10, the fifth proximity switch 21 and the sixth proximity switch 22 are all fixed to the bracket, and the first proximity switch 9, the second proximity switch 10, the fifth proximity switch 21 and the sixth proximity switch 22 are used to detect the rack position;

[0037] The third proximity switch 19 and the fourth proximity switch 20 are both fixed to the bracket, and the third proximity switch 19 and the fourth proximity switch 20 are used to detect the arm position;

[0038] The pressure sensor 11 is connected to the tensioning cylinder 4 of the auxiliary coiling machine, and the pressure sensor 11 is used to detect the pressure of the hydraulic pipeline at the position of the tensioning cylinder 4 of the auxiliary coiling machine;

[0039] The encoder 12 is fixed to the winding guide roller, and the encoder 12 is used to detect the length of the aluminum material.

[0040] Preferably, the hydraulic pipeline includes an oil inlet, a stop valve 13, a filter 14, a first pipeline, a second pipeline and a third pipeline, and the oil inlet is connected to the first pipeline, the second pipeline and the third pipeline respectively through the stop valve 13 and the filter 14.

[0041] Preferably, the first pipeline is connected to the electromagnetic proportional reversing valve 6, the output end of the electromagnetic proportional reversing valve 6 is connected to a double hydraulically controlled one-way valve 15, the output end of the double hydraulically controlled one-way valve 15 is connected to a one-way valve 16, and the one-way valve 16 is connected to the auxiliary winding machine walking cylinder 2.

[0042] Preferably, the second pipeline is connected to a stop valve 13, and the second pipeline is connected to the first electromagnetic reversing valve 7 through the stop valve 13. The output end of the first electromagnetic reversing valve 7 is sequentially connected to a double hydraulically controlled one-way valve 15 and a double one-way throttle valve 17, and the other end of the double one-way throttle valve 17 is connected to a one-way valve 16, and the double one-way throttle valve 17 is connected to two auxiliary winding machine holding cylinders 3 through the one-way valve 16.

[0043] Preferably, the third pipeline is connected to a stop valve 13, the second pipeline is connected to the second electromagnetic reversing valve 8 through the stop valve 13, the output end of the second electromagnetic reversing valve 8 is sequentially connected to a double hydraulically controlled one-way valve 15 and a double one-way throttle valve 17, the other end of the double one-way throttle valve 17 is connected to a one-way valve 16, the double one-way throttle valve 17 is connected to the auxiliary winding machine tensioning cylinder 4 through the one-way valve 16, and a pressure sensor 11 is connected between the auxiliary winding machine tensioning cylinder 4 and the one-way valve 16.

[0044] Preferably, the PLC controller 1 is communicatively connected to an HMI module 18 .

[0045] The automatic mode of the auxiliary winding machine is selected through the HMI module 18, and the HMI module 18 sends a control signal to the PLC controller 1. The PLC controller 1 energizes the SV1 of the electromagnetic proportional reversing valve 6, and the piston of the auxiliary winding machine travel cylinder 2 moves under the action of oil pressure, thereby moving the frame. When the frame moves to the position of the first proximity switch 9, the first proximity switch 9 is triggered. After the PLC controller 1 receives the signal, the PLC controller 1 outputs a control signal to adjust the valve port size of the electromagnetic proportional reversing valve 6, and the frame slowly decelerates until it reaches the position of the second proximity switch 10, and SV1 is powered off and the frame stops. The second proximity switch 10 is triggered. After the PLC controller 1 receives the signal, the PLC controller 1 outputs a control signal to energize the YV1 of the first electromagnetic reversing valve 7, and then the auxiliary winding machine clamping cylinder 3 works, and the arm is clamped. When the third proximity switch 19 is triggered, the PLC controller 1 controls the YV1 of the first electromagnetic reversing valve 7 to be powered off. Then, after receiving the signal from the third proximity switch 19, the PLC controller 1 controls the YV3 of the second electromagnetic reversing valve 8 to be energized, the tensioning cylinder 4 of the auxiliary coiling machine works, and the pressure sensor 11 detects the pressure of the tensioning cylinder 4 of the auxiliary coiling machine. When the tension reaches the set pressure upper limit, the PLC controller 1 controls YV3 to lose power and stop tensioning. The conveyor belt feeds the material, and then the encoder 12 measures the number of meters of aluminum material. When the set value is reached, the auxiliary coiling machine retreats.

[0046] When the auxiliary winding machine moves backward, the PLC controller 1 controls SV2 to be energized, the auxiliary winding machine travel cylinder 2 works, and the frame moves in the opposite direction. When the frame moves to the position of the fifth proximity switch 21, the fifth proximity switch 21 is triggered. After receiving the signal, the PLC controller 1 outputs a control signal to adjust the valve port size of the electromagnetic proportional reversing valve 6. The frame slowly decelerates until it reaches the position of the fifth proximity switch 21, and the frame stops and SV2 is powered off.

[0047] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A control system for a winding machine for straightening and bottoming, comprising a winding machine, a hydraulic system and an electric control system, wherein the winding machine comprises a frame, a bracket, an arm, a winding guide roller and a belt, the electric control system comprises a PLC controller (1), the hydraulic system comprises a hydraulic pipeline, a winding machine travel cylinder (2), a winding machine clamping cylinder (3) and a winding machine tensioning cylinder (4), the winding machine travel cylinder (2) is used to drive the frame to move, the winding machine travel cylinder (2) is used to drive the arm to rise and fall, and the winding machine tensioning cylinder (4) is used to control the belt tensioning, characterized in that: The hydraulic pipeline is provided with an electromagnetic proportional reversing valve (6), a first electromagnetic reversing valve (7) and a second electromagnetic reversing valve (8); the electromagnetic proportional reversing valve (6) is respectively connected to the left chamber and the right chamber of the auxiliary winding machine travel cylinder (2); the first electromagnetic reversing valve (7) is respectively connected to the left chamber and the right chamber of the auxiliary winding machine clamping cylinder (3); and the second electromagnetic reversing valve (8) is connected to the left chamber and the right chamber of the auxiliary winding machine tensioning cylinder (4); The output end of the PLC controller (1) is electrically connected to the control ends of the electromagnetic proportional reversing valve (6), the first electromagnetic reversing valve (7) and the second electromagnetic reversing valve (8), and the electric control system further comprises a first proximity switch (9), a second proximity switch (10), a third proximity switch (19), a fourth proximity switch (20), a fifth proximity switch (21), a sixth proximity switch (22), a pressure sensor (11) and an encoder (12) electrically connected to the input end of the PLC controller (1).

2. The control system of the tension and leveling bottoming auxiliary coiling machine according to claim 1 is characterized in that: The first proximity switch (9), the second proximity switch (10), the fifth proximity switch (21) and the sixth proximity switch (22) are all fixed to the bracket, and the first proximity switch (9), the second proximity switch (10), the fifth proximity switch (21) and the sixth proximity switch (22) are used to detect the position of the rack; The third proximity switch (19) and the fourth proximity switch (20) are both fixed to the bracket, and the third proximity switch (19) and the fourth proximity switch (20) are used to detect the arm position; The pressure sensor (11) is connected to the tensioning cylinder (4) of the auxiliary coiling machine, and the pressure sensor (11) is used to detect the pressure of the hydraulic pipeline at the position of the tensioning cylinder (4) of the auxiliary coiling machine; The encoder (12) is fixed to the winding guide roller, and the encoder (12) is used to detect the length of the aluminum material.

3. The control system of a tension and leveling bottoming auxiliary winding machine according to claim 1, characterized in that: The hydraulic pipeline comprises an oil inlet, a stop valve (13), a filter (14), a first pipeline, a second pipeline and a third pipeline, and the oil inlet is connected to the first pipeline, the second pipeline and the third pipeline respectively through the stop valve (13) and the filter (14).

4. A control system for a tension and leveling bottoming machine according to claim 3, characterized in that: The first pipeline is connected to an electromagnetic proportional reversing valve (6), the output end of the electromagnetic proportional reversing valve (6) is connected to a double hydraulically controlled one-way valve (15), the output end of the double hydraulically controlled one-way valve (15) is connected to a one-way valve (16), and the one-way valve (16) is connected to the traveling oil cylinder (2) of the auxiliary winding machine.

5. The control system of the tension and leveling bottoming auxiliary coiling machine according to claim 3 is characterized in that: The second pipeline is connected to a stop valve (13), and the second pipeline is connected to a first electromagnetic reversing valve (7) via the stop valve (13); an output end of the first electromagnetic reversing valve (7) is sequentially connected to a double hydraulically controlled check valve (15) and a double one-way throttle valve (17); the other end of the double one-way throttle valve (17) is connected to a check valve (16), and the double one-way throttle valve (17) is connected to two auxiliary winding machine holding cylinders (3) via the check valve (16).

6. The control system of the tension and leveling bottoming auxiliary winding machine according to claim 3 is characterized in that: The third pipeline is connected to a stop valve (13); the second pipeline is connected to a second electromagnetic reversing valve (8) via the stop valve (13); the output end of the second electromagnetic reversing valve (8) is sequentially connected to a double hydraulically controlled check valve (15) and a double one-way throttle valve (17); the other end of the double one-way throttle valve (17) is connected to a one-way valve (16); the double one-way throttle valve (17) is connected to the auxiliary winding machine tensioning cylinder (4) via the one-way valve (16); and a pressure sensor (11) is connected between the auxiliary winding machine tensioning cylinder (4) and the one-way valve (16).

7. The control system of the tension and leveling bottoming auxiliary winding machine according to claim 1 is characterized in that: The PLC controller (1) is communicatively connected to an HMI module (18).

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