Automatic pipe die dismounting system and method

Abstract

An automatic pipe die dismounting system comprises a die dismounting base, a pull rod dismounting system, a hydraulic pump station system and a guide rail supporting system, and the die dismounting base is used for supporting and fixing a formed pipe die; the pull rod dismounting system comprises an end cover chuck structure and a hydraulic ejection system, and is used for clamping and dragging a pipe die end cover through an end cover chuck under the action of the hydraulic ejection system; the hydraulic ejection system comprises a mold removal oil cylinder, the mold removal oil cylinder is reversed through an electromagnetic reversing valve, and buffer devices are designed at the two ends of the mold removal oil cylinder; the hydraulic pump station system comprises a pump station subsystem, an oil cooling subsystem and an electric control subsystem, the pump station subsystem adopts an up-down layout structure of an oil tank and a motor pump set, and the oil cooling subsystem adopts an oil cooler to carry out independent circulating cooling on hydraulic oil in the oil tank. Under the condition that the normal form removal function is ensured, through process optimization and automatic design, the labor cost is saved, and the automation degree of form removal of the pipe form is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe pile forming, in particular to an automatic demoulding system for a pipe mold, and also to a demoulding method using the automatic demoulding system for a pipe mold. Background Art

[0002] Since the successful development of large pipe piles in China, this field has made significant breakthroughs in production technology, providing important supporting materials for infrastructure construction. However, in the current pipe pile forming process, manual operation still occupies a dominant position, which not only leads to high labor costs and increases the operating burden of enterprises, but also the accuracy and efficiency of manual operation are often difficult to guarantee, affecting the quality and consistency of products. In particular, in the current pipe pile forming process, the assembly and disassembly process of the pipe mold still requires a lot of manual participation, which not only increases the complexity of the operation, but also reduces production efficiency. At the same time, it will also lead to high production costs of large pipe piles and declining market competitiveness. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies in the prior art and to provide an automatic tube mold demolding system that can save labor costs and greatly improve the degree of automation of tube mold demolding by optimizing the process and automated design while ensuring the normal demolding function.

[0004] Another technical problem to be solved by the present invention is to provide a demolding method using the above-mentioned automatic demolding system for pipe molds.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention is an automatic mold removal system for pipe molds, including a mold removal base, a tie rod removal system, a hydraulic pump station system and a guide rail support system. The demoulding base is used to support and fix the formed pipe mold. The demoulding base includes a pipe mold support seat and a support seat fixed embedded bracket. The pipe mold support seat is used to be installed on the support seat fixed embedded bracket. The pipe mold support seat is also provided with a vertical support plate and a horizontal baffle for bearing the vertical gravity and horizontal drag force of the pipe mold. The tie rod disassembly system includes an end cover chuck structure and a hydraulic ejection system. The end cover chuck structure is installed on the hydraulic ejection system and is used to complete the clamping and dragging operations of the tube mold end cover through the end cover chuck under the action of the hydraulic ejection system; the hydraulic ejection system includes a demolding cylinder, which is switched by an electromagnetic reversing valve and has buffer devices designed at both ends; The hydraulic pump station system is used to provide hydraulic oil for the demoulding cylinder. The hydraulic pump station system includes three subsystems: pump station, oil cooling and electronic control. The pump station subsystem adopts an upper and lower layout structure of an oil tank and a motor pump group. The oil cooling subsystem adopts an oil cooler to independently circulate and cool the hydraulic oil in the oil tank, and separately leads the oil inlet and outlet to the oil cooler on one side of the oil tank. The guide rail support system includes a load-bearing guide rail bracket and a cylinder guide rail bracket, which are used to support and guide the movement of the hydraulic ejection system and the end cover chuck structure during the tube mold disassembly process.

[0006] The technical problem to be solved by the present invention can also be further achieved through the following technical solutions. For the automatic mold removal system for pipe molds described above, the end cover chuck structure includes a chuck seat, a connecting rod sliding seat, three groups of claws, a side pull rod and a connecting rod. The three groups of claws are hinged to the connecting rod sliding seat through the connecting rod, and the three groups of claws are hinged to the chuck seat. The connecting rod sliding seat is connected to the side pull rod, which is used to drive the connecting rod to realize the opening and closing of the three groups of claws under the drive of the side pull rod.

[0007] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the automatic demolding system for pipe molds described above, slide plates are installed on both sides of the chuck seat to play a role in supporting and transmitting force.

[0008] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the automatic demolding system for pipe molds described above, a push plate bracket cooperating with a side pull rod is connected to the piston rod end of the demolding cylinder. When the demolding cylinder is extended, the push plate bracket is driven to move, and the chuck seat is driven to move through the side pull rod to realize the merging and dragging of the three groups of claws; similarly, the retraction of the demolding cylinder can realize the opening of the three groups of claws and their approach to the end cover of the pipe mold.

[0009] The technical problem to be solved by the present invention can also be further achieved through the following technical solutions. For the automatic demolding system for pipe molds described above, a cylinder mounting bracket is connected to the cylinder of the demolding cylinder, and the cylinder mounting bracket is connected to a cylinder pre-embedded bracket through a number of cylinder intermediate brackets.

[0010] The technical problem to be solved by the present invention can be further achieved through the following technical scheme. For the automatic mold removal system for pipe molds described above, an exhaust duct is separately installed above the oil cooler to discharge the hot air to the outside, and the air intake and exhaust outlets are independently separated to prevent the exhausted hot air from being circulated to the air inlet.

[0011] The technical problem to be solved by the present invention can also be further achieved through the following technical solutions. For the automatic mold removal system for pipe molds described above, the electronic control subsystem is controlled by panel buttons and / or remote control, which is used to control the hydraulic pump source, reciprocating motion of the cylinder, cylinder stroke and oil source parameter monitoring.

[0012] The technical problem to be solved by the present invention can also be further achieved through the following technical scheme. For the automatic demolding system for pipe molds described above, an electronic travel limit switch is installed at each end of the cylinder guide rail bracket to limit the extension and retraction movement range of the cylinder during the demolding process.

[0013] The technical problem to be solved by the present invention can be further achieved by the following technical solutions. For the above-mentioned automatic mold removal system for pipe molds, a method for automatic mold removal for pipe molds is provided, and the steps are as follows: (1) Preparation stage Place the formed pipe mold on the demoulding base and ensure that the pipe mold is stably installed on the pipe mold support seat; (2) Preparation of the tie rod disassembly system Install the end cover chuck structure of the tie rod disassembly system on the demolding cylinder of the hydraulic ejection system to ensure that the end cover chuck can accurately clamp the end cover of the tube mold, and start the hydraulic pump station system through the electronic control subsystem to provide hydraulic oil to the demolding cylinder to prepare for the end cover dragging operation; (3) Pulling the rod and removing the end cover Under the control of the electronic control subsystem, the electromagnetic reversing valve is switched to drive the mold removal cylinder to perform telescopic movement. Under the action of the hydraulic ejection system, the end cover chuck structure completes the clamping operation of the tube mold end cover and drags the pull rod to move the tube mold end cover until the tube mold pull rod is completely pulled out; (4) Pipe mold support and disassembly: During the dragging process, the guide rail support system supports and guides the movement of the end cover chuck structure to ensure the smooth disassembly process; As the tube mold tie rod is completely pulled out, the tube mold remains stable under the support of the demolding base, and then the tube mold can be removed from the demolding base by other auxiliary equipment or manual methods; (5) System reset and subsequent operations: After the demoulding is completed, the demoulding cylinder is controlled to retract through the electronic control subsystem to reset the end cover chuck structure; Shut down the hydraulic pump station system, stop the hydraulic oil supply, and perform necessary cleaning and maintenance on the system; Prepare for the next round of demoulding operation.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The automatic demolding system for pipe molds realizes the automation of the pipe mold disassembly process by integrating the demolding base, the tie rod disassembly system, the hydraulic pump station system and the guide rail support system. The end cover chuck structure and the hydraulic ejection system in the tie rod disassembly system can accurately clamp the end cover of the pipe mold and drag the tie rod, which greatly reduces the complexity and time cost of manual operation. At the same time, the design of the electromagnetic reversing valve and the buffer device makes the movement of the demolding cylinder more stable and fast, further improving the demolding efficiency; 2. The design of the demoulding base of the present invention fully considers the stress of the pipe mold during the disassembly process. The vertical gravity and horizontal drag force of the pipe mold are effectively borne by the vertical support plate and the horizontal baffle, ensuring the stability of the demoulding process. In addition, the buffer devices at both ends of the hydraulic ejection system can reduce the impact and vibration during the movement of the oil cylinder and protect the system from damage. The oil cooling subsystem in the hydraulic pump station system independently circulates and cools the hydraulic oil, effectively preventing system failures caused by excessive oil temperature, and further enhancing the safety and reliability of the system. 3. The hydraulic pump station system of the present invention adopts an upper and lower layout structure of the oil tank and the motor pump group, so that the entire system has a compact structure and occupies a small area, which is convenient for installation and use in a limited space. At the same time, the oil cooling subsystem realizes independent circulation cooling of the hydraulic oil by independently leading the oil inlet and outlet to the oil cooler, which not only improves the cooling efficiency but also facilitates the maintenance and maintenance of the system. The design of the guide rail support system also fully considers the guidance and support requirements during the disassembly process, so that the movement of the end cover chuck structure is smoother and more stable, reducing the complexity and cost of system maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of the present invention; Figure 2 A top view of the structure of the present invention; Figure 3 It is a structural schematic diagram of the end cover chuck structure of the present invention. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Reference Figure 1-3 , an automatic demoulding system for pipe molds, including a demoulding base, a tie rod disassembly system, a hydraulic pump station system and a guide rail support system, The demoulding base is used to support and fix the formed pipe mold, and is mainly welded with a Q235 steel plate with a thickness of 30 mm, and the design load is not less than 80 tons. The demoulding base includes a pipe mold support seat 1 and a support seat fixed embedded bracket 2. The pipe mold support seat 1 is used to be installed on the support seat fixed embedded bracket 2. The pipe mold support seat 1 is also provided with a vertical support plate and a horizontal baffle for bearing the vertical gravity and horizontal drag force of the pipe mold; The tie rod disassembly system includes an end cover chuck structure 6 and a hydraulic ejection system. The end cover chuck structure 6 is installed on the hydraulic ejection system to complete the clamping and dragging operations of the end cover of the pipe mold through the end cover chuck under the action of the hydraulic ejection system. For the disassembly of an 8m long tie rod, the hydraulic ejection system is designed to have an ejection force of 100 tons and a maximum ejection force of 160 tons. Specifically: The end cover chuck structure 6 includes a chuck seat 61, a connecting rod 64 sliding seat 62, three groups of claws 63, a side pull rod 65 and a connecting rod 64. The three groups of claws 63 are all hinged to the connecting rod 64 sliding seat 62 through the connecting rod 64, and the three groups of claws 63 are all hinged to the chuck seat 61. The connecting rod 64 sliding seat 62 is connected to the side pull rod 65, which is used to drive the connecting rod 64 to realize the opening and closing of the three groups of claws 63 under the drive of the side pull rod 65. When in use, before clamping the end cover, the claws 63 are first controlled to open, and the pull rods 65 on both sides need to be controlled to advance to drive the connecting rod 64 sliding seat 62 to move, and then the claws 63 are opened through the connecting rod 64. When the side pull rod 65 limit plate contacts the chuck seat 61, it will further push the chuck seat 61 to move together until the claws 63 reach the end cover position of the pipe mold; When the clamping claw 63 reaches the preset position of the tube mold end cover, it starts to pull back the side tie rod 65 in the opposite direction until the connecting rod 64 sliding seat 62 contacts the chuck seat 61. During this process, the three clamping claws 63 will gradually merge until the end completely clamps the tube mold end cover; thereafter, when the side tie rod 65 is continuously pulled to the left, the chuck system starts to drive the tube mold end cover to move to the left until the tube mold tie rod is completely pulled out; Slide plates are installed on both sides of the chuck seat 61 to play the role of supporting and transmitting force; Secondly, during the demolding process, the claw 63 serves as a direct force-bearing element between the tube mold end cover, and the end of the claw 63 is greatly worn and deformed. In order to avoid unnecessary waste by replacing the entire claw 63 structure after damage, the claw 63 is designed to be composed of two parts: the claw 63 connecting rod 64 and the claw 63 head. The claw 63 head is made of wear-resistant material of manganese steel alloy and is connected to the claw 63 connecting rod 64 through a perforated shaft, which is convenient for replacement and disassembly.

[0018] The hydraulic ejection system includes a demolding cylinder 10, which is installed and fixed by a cylinder fixing bracket 11. The designed rated pressure of the hydraulic system is 21MPa, the inner diameter of the cylinder barrel is 310mm, the piston rod diameter is 150mm, and the stroke is 8.3m. The demolding cylinder 10 is switched by an electromagnetic reversing valve, and buffer devices are designed at both ends. Under normal working conditions, the cylinder retraction speed is 200mm / s, the ejection speed is 120mm / s, and the flow rate required for the system to work is 543L / min. Therefore, two 250cc displacement variable pumps are selected to supply oil in parallel to meet the maximum flow rate requirement. When slow movement is required, only one pump can be kept to supply oil by switching the switch valve state.

[0019] In order to improve the disassembly force of the pull rod, the demolding process is designed to correspond to the extended state of the hydraulic cylinder. The piston rod end of the demolding cylinder 10 is connected to a push plate bracket 7 that cooperates with the side pull rod 65 through the cylinder connecting bracket 8. When the demolding cylinder 10 is extended, the push plate bracket 7 is driven to move, and the chuck seat 61 is driven to move through the side pull rod 65 to achieve the merging and dragging of the three groups of claws 63; similarly, the retraction of the demolding cylinder 10 can achieve the opening of the three groups of claws 63 and their approach to the end cover of the pipe mold; a demolding load-bearing guide rail 3 is also installed on the ground to cooperate with the push plate bracket 7, and the demolding load-bearing guide rail 3 is pre-buried and fixed through the pre-buried base I4 and the pre-buried base II5; In order to increase the demolding load force of the demolding cylinder 10 and reduce the lateral force between the piston rod and the cylinder, a cylinder mounting bracket 12 is connected to the cylinder of the demolding cylinder 10, and the cylinder mounting bracket 12 is connected to the cylinder embedded bracket 9 through a plurality of cylinder intermediate brackets.

[0020] The hydraulic pump station system is used to provide hydraulic oil for the demoulding cylinder 10. The hydraulic pump station system includes three subsystems: pump station, oil cooling and electronic control. The pump station subsystem adopts an upper and lower layout structure of an oil tank and a motor pump group. The oil cooling subsystem 14 adopts an oil cooler to independently circulate and cool the hydraulic oil in the oil tank, and separately leads the oil inlet and outlet to the oil cooler on one side of the oil tank. Among them, the motor pump group and the oil tank occupy an area of ​​about 3.5m in length, 2.74m in width and 2.2m in height. The total space occupied by the oil cooler is 2.3m in length, 2m in width and 3.9m in height. An exhaust duct is installed separately above the oil cooler to discharge the hot air to the outside. The air intake and exhaust outlet are separated independently to prevent the discharged hot air from being recirculated to the air inlet. An exhaust duct is installed separately above the oil cooler to discharge the hot air to the outside. The air intake and exhaust outlet are separated independently to prevent the discharged hot air from being recirculated to the air inlet.

[0021] The electronic control subsystem 13 is controlled by panel buttons and / or remote control, and is used to control the hydraulic pump source, reciprocating motion of the cylinder, cylinder stroke and oil source parameter monitoring. Specifically, the electronic control subsystem 13 also includes two subsystems: hydraulic oil source and pull rod disassembly. All components of the two subsystems share an electronic control cabinet and a PLC control center. The system is mainly composed of a programmable controller and automatic control software. Manual or semi-automatic remote control of each system is achieved through communication with the PLC through a handheld remote control to complete the actions required for mold installation.

[0022] Secondly, the electric control cabinet also includes oil source power components and demoulding control components. The oil source power components include pump station motor and oil cooler motor soft start and system power supply components. The demoulding control components include pump station control components, oil cooler control components and sensor signal acquisition components. The cabinet is also connected to the remote control, emergency stop switch, alarm indicator light, operation button and other wiring accessories. According to the design requirements, the remote control button functions are set to include: ejection / retraction of the demoulding cylinder 10, pump source motor start / stop, pump source unloading / working, emergency stop, etc. The buttons on the industrial control cabinet operation table panel also include pump source motor start / stop, pump source unloading / working, emergency stop, etc., to facilitate long and short distance operation.

[0023] The guide rail support system includes a load-bearing guide rail bracket 16 and a cylinder guide rail bracket 15, which are used to support and guide the movement of the hydraulic ejection system and the end cover chuck structure during the disassembly of the tube mold. A push plate that cooperates with the demolding cylinder 10 is also installed on the cylinder guide rail bracket 15 through a locking nut 19. Considering the transportation size limit, it is divided into two identical left and right parts; the embedded bracket below the ground is also divided into two parts. In order to improve the installation accuracy, the two parts below the ground are connected by steel plates through anchor bolts 17. In addition to the mechanical limit of the cylinder itself, an electronic travel limit switch is installed at each end of the cylinder guide rail bracket 15 to limit the extension and retraction range of the cylinder during the demolding process.

[0024] A method for automatically removing a pipe mold, the steps of which are as follows: (1) Preparation stage Place the formed pipe mold on the demoulding base, which consists of a pipe mold support base and a pre-embedded bracket for fixing the support base, to ensure that the pipe mold is stably installed on the pipe mold support base, and that the vertical support plate and the horizontal baffle plate correctly bear the vertical gravity and horizontal drag force of the pipe mold; (2) Preparation of the tie rod disassembly system Install the end cover chuck structure of the tie rod disassembly system on the demolding cylinder of the hydraulic ejection system to ensure that the end cover chuck can accurately clamp the end cover of the tube mold, and start the hydraulic pump station system through the electronic control subsystem to provide hydraulic oil to the demolding cylinder to prepare for the end cover dragging operation; (3) Pulling the rod and removing the end cover Under the control of the electronic control subsystem, the electromagnetic reversing valve is switched to drive the mold removal cylinder to perform telescopic movement. Under the action of the hydraulic ejection system, the end cover chuck structure completes the clamping operation of the tube mold end cover and drags the pull rod to move the tube mold end cover until the tube mold pull rod is completely pulled out; (4) Pipe mold support and disassembly: During the dragging process, the guide rail support system supports and guides the movement of the end cover chuck structure to ensure the smooth disassembly process; As the tube mold tie rod is completely pulled out, the tube mold remains stable under the support of the demolding base, and then the tube mold can be removed from the demolding base by other auxiliary equipment or manual methods; (5) System reset and subsequent operations: After the demoulding is completed, the demoulding cylinder is controlled to retract through the electronic control subsystem to reset the end cover chuck structure; Shut down the hydraulic pump station system, stop the hydraulic oil supply, and perform necessary cleaning and maintenance on the system; Prepare for the next round of demoulding operation.

Claims

1. A pipe mold automatic demoulding system, characterized by: Including demoulding base, tie rod disassembly system, hydraulic pump station system and guide rail support system, The demoulding base is used to support and fix the formed pipe mold. The demoulding base includes a pipe mold support seat and a support seat fixed embedded bracket. The pipe mold support seat is used to be installed on the support seat fixed embedded bracket. The pipe mold support seat is also provided with a vertical support plate and a horizontal baffle for bearing the vertical gravity and horizontal drag force of the pipe mold. The tie rod disassembly system includes an end cover chuck structure and a hydraulic ejection system. The end cover chuck structure is installed on the hydraulic ejection system and is used to complete the clamping and dragging operations of the tube mold end cover through the end cover chuck under the action of the hydraulic ejection system; the hydraulic ejection system includes a demolding cylinder, which is switched by an electromagnetic reversing valve and has buffer devices designed at both ends; The hydraulic pump station system is used to provide hydraulic oil for the demoulding cylinder. The hydraulic pump station system includes three subsystems: pump station, oil cooling and electronic control. The pump station subsystem adopts an upper and lower layout structure of an oil tank and a motor pump group. The oil cooling subsystem adopts an oil cooler to independently circulate and cool the hydraulic oil in the oil tank, and separately leads the oil inlet and outlet to the oil cooler on one side of the oil tank. The guide rail support system includes a load-bearing guide rail bracket and a cylinder guide rail bracket, which are used to support and guide the movement of the hydraulic ejection system and the end cover chuck structure during the tube mold disassembly process.

2. The automatic mold removal system for pipe molds according to claim 1 is characterized in that: The end cover chuck structure includes a chuck seat, a connecting rod sliding seat, three groups of jaws, a side pull rod and a connecting rod. The three groups of jaws are hinged to the connecting rod sliding seat through the connecting rod, and the three groups of jaws are hinged to the chuck seat. The connecting rod sliding seat is connected to the side pull rod, and is used to drive the connecting rod to realize the opening and closing of the three groups of jaws under the drive of the side pull rod.

3. The automatic tube mold removal system according to claim 2 is characterized in that: Slide plates are installed on both sides of the chuck seat to play the role of supporting and transmitting force.

4. The automatic tube mold removal system according to claim 2 is characterized in that: A push plate bracket cooperating with the side pull rod is connected to the piston rod end of the demolding cylinder. When the demolding cylinder is extended, it drives the push plate bracket to move, and drives the chuck seat to move through the side pull rod, so that the three sets of claws can be merged and dragged; similarly, the retraction of the demolding cylinder can realize the opening of the three sets of claws and their approach to the end cover of the tube mold.

5. The automatic mold removal system for pipe molds according to claim 1 is characterized in that: A cylinder mounting bracket is connected to the cylinder of the demoulding oil cylinder, and the cylinder mounting bracket is connected to a cylinder pre-buried bracket through a plurality of cylinder intermediate brackets.

6. The automatic tube mold removal system according to claim 1, characterized in that: An exhaust duct is installed above the oil cooler to discharge the hot air to the outside. The air intake and exhaust vents are separated to prevent the exhausted hot air from being circulated to the air inlet.

7. The automatic tube mold removal system according to claim 1 or 6, characterized in that: The electronic control subsystem is controlled by panel buttons and / or remote controller, and is used to control the hydraulic pump source, the reciprocating motion of the cylinder, the cylinder stroke and the oil source parameter monitoring.

8. The automatic tube mold removal system according to claim 1 is characterized by: An electronic travel limit switch is installed at each end of the cylinder guide bracket to limit the extension and retraction range of the cylinder during the demoulding process.

9. A method for automatically removing a pipe mold, characterized in that: The method uses the automatic mold removal system for pipe molds according to any one of claims 1 to 8, and the steps are as follows: (1) Preparation Place the formed pipe mold on the demoulding base and ensure that the pipe mold is stably installed on the pipe mold support seat; (2) Preparation of the tie rod disassembly system Install the end cover chuck structure of the tie rod disassembly system on the demolding cylinder of the hydraulic ejection system to ensure that the end cover chuck can accurately clamp the end cover of the tube mold, and start the hydraulic pump station system through the electronic control subsystem to provide hydraulic oil to the demolding cylinder to prepare for the end cover dragging operation; (3) Pulling the rod and removing the end cover Under the control of the electronic control subsystem, the electromagnetic reversing valve is switched to drive the mold removal cylinder to perform telescopic movement. Under the action of the hydraulic ejection system, the end cover chuck structure completes the clamping operation of the tube mold end cover and drags the pull rod to move the tube mold end cover until the tube mold pull rod is completely pulled out; (4) Pipe mold support and disassembly: During the dragging process, the guide rail support system supports and guides the movement of the end cover chuck structure to ensure the smooth disassembly process; As the tube mold tie rod is completely pulled out, the tube mold remains stable under the support of the demolding base, and then the tube mold can be removed from the demolding base by other auxiliary equipment or manual methods; (5) System reset and subsequent operations: After the demoulding is completed, the demoulding cylinder is controlled to retract through the electronic control subsystem to reset the end cover chuck structure; Shut down the hydraulic pump station system, stop the hydraulic oil supply, and perform necessary cleaning and maintenance on the system; Prepare for the next round of demoulding operation.

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