A shaping press

Abstract

This invention discloses a plastic forming press, including a base, a mounting frame fixedly installed on the top of the base, a hydraulic rod fixedly installed inside the mounting frame, and a pressure head fixedly installed at the output end of the hydraulic rod. This invention incorporates a cooling mechanism that uses a gear pump to drive a cooling medium to form a stable circulation flow within a connecting pipe, a water injection cylinder, and a cooling tank. Combined with an automatic docking structure of a first self-sealing male plug and a first self-sealing female plug, it achieves automatic connection and sealing control of the cooling passages between the top and bottom molds, allowing the cooling process to be completed without manual intervention, improving cooling efficiency and continuous processing stability. Simultaneously, under water pressure, the lifting cylinder achieves an adaptive sealing connection, ensuring stable liquid supply during mold lifting and preventing leakage, thus improving system reliability and safety. Furthermore, it can restrict the position of the bottom mold during cooling, ensuring stability.

Description

Technical Field

[0001] This invention relates to the field of vibration damping equipment technology, specifically a plastic forming press. Background Technology

[0002] Plastic forming presses are widely used in the forming and processing of metals and composite materials. They typically use a hydraulic drive mechanism to move the pressure head, which works in conjunction with upper and lower molds to complete the heating, forming, and pressing of the workpiece. In actual production, to ensure forming quality and processing efficiency, the molds often need to operate under high temperature, high pressure, and continuous cyclic working conditions. Therefore, high requirements are placed on the positioning accuracy, cooling efficiency, and ease of assembly and disassembly of the molds.

[0003] Plastic forming presses belong to the B30B1 technical category and are mainly used to apply pressure to workpieces via hydraulic or mechanical drives to achieve heat forming, hot pressing, and mold pressing of metals or composite materials. During hot pressing, upper and lower molds are typically used for high-temperature and high-pressure forming to ensure the forming accuracy and structural strength of the workpiece.

[0004] In existing technologies, to improve molding efficiency, molds often operate continuously at high temperatures. Therefore, continuous cooling of the bottom mold is necessary to prevent mold deformation or workpiece quality degradation due to excessive temperature. However, existing cooling systems mostly use external hoses or manual connections to circulate the cooling medium, which is not only cumbersome to operate but also prone to problems such as poor sealing, leakage, or interface wear, affecting the stability of continuous equipment operation.

[0005] Meanwhile, existing presses mostly use mechanical bolts or simple insertion positioning for the positioning of the top and bottom molds, which leads to manual alignment errors during assembly, easily causing problems such as uneven mold stress, reduced processing accuracy, and vibration displacement. Summary of the Invention

[0006] The purpose of this invention is to provide a plastic forming press to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A plastic forming press includes a base, a mounting frame fixedly installed on the top of the base, a hydraulic rod fixedly installed inside the mounting frame, a pressure head fixedly installed at the output end of the hydraulic rod, a heated top mold provided at the bottom of the pressure head, and a bottom mold provided at the top of the base.

[0009] The base is equipped with a cooling mechanism for cooling the bottom mold.

[0010] The bottom of the pressure head is provided with a positioning mechanism for mold positioning.

[0011] Preferably, the cooling mechanism includes a storage box, inside which a gear pump is fixedly installed. The output end of the gear pump is fixedly connected to a connecting pipe. Water injection cylinders are fixedly connected to the top of both sides of the connecting pipe. An installation frame is installed and connected to the top of the base. The bottom mold is movably inserted into the installation frame. Movable holes are opened through the front sides of both sides of the bottom of the installation frame. The top of the water injection cylinder extends into the interior of the movable hole. A lifting and connecting assembly is provided on the top of the water injection cylinder. A cooling groove is opened inside the bottom mold.

[0012] Preferably, the positioning mechanism includes a mounting block, which is fixedly connected to the bottom of the pressure head. The top of the top mold has a mounting slot, and the top mold is inserted into the surface of the mounting block through the mounting slot. First positioning components are provided on both sides inside the mounting block, and a mounting groove is provided on the rear side of the bottom of the inner wall of the mounting frame. A second positioning component is movably connected inside the mounting groove.

[0013] Preferably, the lifting and connecting assembly includes a first tension spring, a lifting cylinder is fixedly connected to the top end of the first tension spring, a telescopic protective sleeve is sleeved on the surface of the first tension spring, the top end of the telescopic protective sleeve is fixedly connected to the bottom of the lifting cylinder, the bottom end of the telescopic protective sleeve is fixedly connected to the top of the water injection cylinder, a first self-sealing male plug is fixedly connected to the top end of the lifting cylinder, and a first self-sealing female plug is installed on both sides of the bottom of the bottom mold, the top end of the first self-sealing female plug is connected to the cooling tank, and the bottom end of the first self-sealing female plug is inserted and engaged with the first self-sealing male plug.

[0014] Preferably, the first positioning component includes a piston groove, a first piston is movably connected inside the piston groove, a first spring is fixedly connected to the bottom of the first piston, the bottom end of the first spring is fixedly connected to the bottom of the inner wall of the piston groove, a positioning rod is fixedly connected to the bottom of the first piston, the bottom end of the positioning rod extends through to the bottom of the mounting block and is movably connected to the mounting block, positioning grooves are provided on both sides of the bottom of the mounting slot, the positioning rod is movably connected to the positioning groove, a water pipe is provided on the rear side of the mounting block, a flexible hose is fixedly connected to the rear end of the water pipe, the bottom end of the flexible hose is fixedly connected to the rear end of the connecting pipe, and the front end of the water pipe is connected to the piston groove.

[0015] Preferably, the second positioning component includes a conical block, a second spring is fixedly connected to the bottom of the conical block, the bottom end of the second spring is fixedly connected to the mounting groove, a second self-sealing male plug is fixedly installed inside the conical block, a conical groove is opened on the rear side of the bottom of the bottom mold, a second self-sealing female plug is installed inside the conical groove, the second self-sealing female plug and the second self-sealing male plug are plugged in and cooperate, the bottom end of the second self-sealing male plug is fixedly connected to a telescopic flexible tube, the bottom end of the telescopic flexible tube is fixedly connected to a drain pipe, and the other end of the drain pipe is connected to the storage box.

[0016] Preferably, a lubricating oil reservoir is provided on the rear side inside the mounting frame. A connecting pipe is fixedly connected to the bottom end of the lubricating oil reservoir, and the bottom end of the connecting pipe is connected to the connecting pipe. A second tension spring is fixedly connected to the bottom inside the lubricating oil reservoir, and a second piston is fixedly connected to the top end of the second tension spring. Oil leakage grooves are provided on both sides of the inner wall of the mounting frame. An oil tank is fixedly installed on the rear side of the top of the mounting frame. A first one-way valve is fixedly connected to the bottom end of the oil tank, and the oil tank is connected to the lubricating oil reservoir through the first one-way valve. A second one-way valve is fixedly connected to both sides of the top of the inner wall of the lubricating oil reservoir, and the lubricating oil reservoir is connected to the oil leakage groove through the second one-way valve.

[0017] Preferably, ball bearings are movably embedded on both sides of the top of the mounting block, and a plurality of ball bearings are provided and are evenly distributed, and the ball bearings are movably connected to the inner wall of the mounting slot.

[0018] Preferably, a filling port is fixedly installed on the rear side of the top of the oil storage tank.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention features a cooling mechanism that uses a gear pump to drive the cooling medium to form a stable circulation flow within the connecting pipe, water injection cylinder, and cooling tank. Combined with an automatic docking structure of the first self-sealing male plug and the first self-sealing female plug, it achieves automatic connection and sealing control of the cooling passages between the top and bottom molds. This allows the cooling process to be completed without manual intervention, improving cooling efficiency and continuous processing stability. Simultaneously, under water pressure, the lifting cylinder achieves an adaptive sealing connection, ensuring stable liquid supply during mold lifting and preventing leakage, thus improving system reliability and safety. Furthermore, it can restrict the position of the bottom mold during cooling, ensuring stability.

[0021] 2. The present invention is equipped with a positioning mechanism. Through the cooperation of the first piston, the first spring and the positioning rod, the top mold is automatically positioned and locked by water pressure during the installation process, so that the top mold can be quickly aligned and installed, improving assembly accuracy and reducing manual adjustment errors. At the same time, after the pressure is released, the positioning structure is automatically reset by the spring, which facilitates quick disassembly and assembly of the mold, improves operating efficiency and stability for repeated use.

[0022] 3. The present invention provides a lubricating oil reservoir so that lubricating oil can be injected into the mounting frame through the oil drain groove during the cooling process of the bottom mold, thereby lubricating the bottom mold inside the mounting frame and facilitating the disassembly of the bottom mold. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the base of the present invention;

[0025] Figure 3 This is an enlarged structural diagram of point A in the present invention;

[0026] Figure 4 This is an enlarged structural diagram of section B of the present invention;

[0027] Figure 5 This is a three-dimensional exploded cross-sectional view of the mounting block of the present invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the bottom mold of the present invention;

[0029] Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the bottom mold of the present invention.

[0030] In the diagram: 100, base; 101, mounting frame; 102, hydraulic rod; 103, pressure head; 104, top mold; 105, bottom mold; 200, cooling mechanism; 201, storage tank; 202, gear pump; 203, connecting pipe; 204, water injection cylinder; 205, mounting frame; 206, movable hole; 207, lifting and connecting assembly; 207a, first tension spring; 207b, lifting cylinder; 207c, telescopic protective sleeve; 207d, first self-sealing male plug; 207e, first self-sealing female plug; 208, cooling tank; 209, lubricating oil reservoir; 210, connecting pipe; 211, second tension spring; 212, second piston; 213, oil leakage tank; 214, filling point. 215. Oil reservoir; 216. First check valve; 217. Second check valve; 300. Positioning mechanism; 301. Mounting block; 302. Mounting slot; 303. First positioning assembly; 303a. Piston groove; 303b. First piston; 303c. First spring; 303d. Positioning rod; 303e. Positioning groove; 303f. Water pipe; 303g. Flexible hose; 304. Mounting groove; 305. Second positioning assembly; 305a. Conical block; 305b. Second spring; 305c. Second self-sealing male plug; 305d. Conical groove; 305e. Second self-sealing female plug; 305f. Telescopic flexible hose; 305g. Drain pipe; 306. Ball bearing. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-7 The present invention provides a technical solution:

[0033] Example 1

[0034] A plastic forming press includes a base 100 for supporting the entire machine structure; a mounting frame 101 is fixedly installed on the top of the base 100 for mounting a hydraulic drive assembly; a hydraulic rod 102 is fixedly installed inside the mounting frame 101, and a pressure head 103 is fixedly connected to the output end of the hydraulic rod 102 for applying forming pressure to the workpiece; a heating top mold 104 is provided at the bottom of the pressure head 103 for heating and forming the workpiece; and a bottom mold 105 is provided on the top of the base 100 for cooperating with the heating top mold 104 to complete the plastic forming process.

[0035] The base 100 is equipped with a cooling mechanism 200 for cooling the bottom mold 105, which is used to achieve rapid cooling of the bottom mold 105 during the molding process, so as to improve processing efficiency and continuous production stability.

[0036] The cooling mechanism 200 includes a storage tank 201 for storing cooling medium; a gear pump 202 is fixedly installed inside the storage tank 201 for providing power to transport the cooling medium; a connecting pipe 203 is fixedly connected to the output end of the gear pump 202 for transporting the cooling medium; water injection cylinders 204 are fixedly connected to the top of both sides of the connecting pipe 203 for introducing the cooling medium into the bottom mold 105; an installation frame 205 is installed and connected to the top of the base 100, and the bottom mold 105 is movably inserted into the installation frame 205; movable holes 206 are opened on both sides of the bottom of the installation frame 205, and the water injection cylinders 204 pass through the movable holes 206 to achieve conduction; a lifting and connecting assembly 207 is provided on the top of the water injection cylinder 204 for achieving adaptive sealing connection during the lifting and lowering process of the bottom mold 105; a cooling groove 208 is opened inside the bottom mold 105 to enhance the heat exchange effect.

[0037] The cooling mechanism 200 operates using a water pressure circulation cooling method. The gear pump 202 applies delivery pressure to the cooling medium in the storage tank 201, causing the cooling medium to enter the connecting pipe 203 and the water injection cylinder 204 in sequence under water pressure, and then enter the cooling tank 208 of the bottom mold 105 through the first self-sealing male plug 207d and the first self-sealing female plug 207e. Thus, the cooling medium enters the bottom mold 105 under pressure, improving the heat dissipation efficiency of the bottom mold 105.

[0038] The lifting and connecting assembly 207 includes a first tension spring 207a, which provides an elastic restoring force; a lifting cylinder 207b is fixedly connected to the top of the first tension spring 207a, which is used to realize the lifting compensation of the conductive structure; a telescopic protective sleeve 207c is sleeved on the surface of the first tension spring 207a, which ensures the connection between the lifting cylinder 207b and the water injection cylinder 204 and is used for protection and sealing; the top of the telescopic protective sleeve 207c is fixedly connected to the bottom of the lifting cylinder 207b, and the bottom is fixedly connected to the top of the water injection cylinder 204; a first self-sealing male plug 207d is fixedly connected to the top of the lifting cylinder 207b, and a first self-sealing female plug 207e is provided at the bottom of the bottom mold 105 and connected to the cooling tank 208, and the two are plugged in to realize the water channel connection.

[0039] In the absence of water pressure, the first tension spring 207a releases its elastic restoring force and drives the lifting cylinder 207b to return to its original position, causing the first self-sealing male plug 207d and the first self-sealing female plug 207e to automatically separate, thereby closing the cooling passage.

[0040] Under water pressure operation, the cooling medium forms a stable water pressure under the action of the gear pump 202, thereby pushing the lifting cylinder 207b upward and stretching the first tension spring 207a and the telescopic protective sleeve 207c, so that the first self-sealing male plug 207d can move upward and maintain a tight seal with the first self-sealing female plug 207e, thereby connecting the water path and positioning the bottom mold 105 to ensure the stability of the bottom mold 105 during use.

[0041] The mounting frame 205 has a lubricating oil reservoir 209 inside for storing lubricating media. A connecting pipe 210 is fixedly connected to the bottom of the lubricating oil reservoir 209, connecting it to a connecting pipe 203. The bottom of the connecting pipe 210 is connected to the connecting pipe 203, allowing the gear pump 202 to start. Under pressure, the coolant pushes the second piston 212 inside the lubricating oil reservoir 209, causing the second piston 212 to move upwards and squeeze the lubricating oil inside the reservoir 209. Simultaneously, it stretches the second tension spring 211. The second tension spring 211 is fixedly connected to the bottom of the lubricating oil reservoir 209. After the gear pump 202 is turned off, the second tension spring 211 uses its own tension to reset the second piston 212. The top of the second tension spring 211 is fixedly connected to the second piston 212, allowing the second piston 212 to push the lubricating oil upwards. Oil leakage grooves 213 are provided on both sides of the inner wall of the mounting frame 205. An oil reservoir 215 is fixedly installed on the rear side of the top of the frame 205. The bottom end of the oil reservoir 215 is fixedly connected to a first one-way valve 216. The oil reservoir 215 is connected to the lubricating oil reservoir 209 through the first one-way valve 216. The two sides of the top of the inner wall of the lubricating oil reservoir 209 are fixedly connected to second one-way valves 217. The lubricating oil reservoir 209 is connected to the oil leakage groove 213 through the second one-way valves 217, so that the compressed lubricating oil can be injected into the oil leakage groove 213 through the second one-way valve 217 and enter the interior of the mounting frame 205, thereby lubricating the installation gap between the mounting frame 205 and the bottom mold 105, making the installation or disassembly of the bottom mold 105 more convenient and without jamming. At the same time, when the second tension spring 211 drives the second piston 212 to move downward and reset, the lubricating oil reservoir 209 forms a negative pressure, thereby drawing the lubricating oil inside the oil reservoir 215 into the lubricating oil reservoir 209 through the first one-way valve 216 to replenish the lubricating oil.

[0042] Example 2

[0043] Based on Example 1, in order to further improve the assembly positioning accuracy of the top mold 104 and the bottom mold 105, and to realize the linkage control between the cooling system and the mold positioning system, a positioning mechanism 300 for mold positioning is provided at the bottom of the pressure head 103. Through this structure, automatic guidance, automatic locking and water pressure assisted stable support can be realized during mold installation and forming process, thereby improving the overall processing accuracy and operational stability.

[0044] The positioning mechanism 300 includes a mounting block 301, which is fixedly connected to the bottom of the pressure head 103. The top of the top mold 104 is provided with a mounting slot 302, and the top mold 104 is inserted into the surface of the mounting block 301 through the mounting slot 302 to achieve preliminary guiding and positioning. The mounting block 301 has a first positioning component 303 on both sides inside for double-sided clamping and positioning of the top mold 104. The bottom of the inner wall of the mounting frame 205 is provided with a mounting groove 304, and a second positioning component 305 is movably connected inside the mounting groove 304 to achieve guiding and positioning of the bottom mold 105 and water channel docking.

[0045] The first positioning component 303 includes a piston groove 303a, a first piston 303b is movably connected inside the piston groove 303a, a first spring 303c is fixedly connected to the bottom of the first piston 303b, the first spring 303c is used to provide a reset force so that the first piston 303b automatically resets after losing external pressure; a positioning rod 303d is fixedly connected to the bottom of the first piston 303b, the bottom end of the positioning rod 303d passes through to the bottom of the mounting block 301 and is movably connected to the mounting block 301.

[0046] After the gear pump 202 starts, the cooling medium, under pressure, is sequentially transported through the connecting pipe 203, the hose 303g, and the water pipe 303f, and enters the piston groove 303a, creating a water pressure environment inside the piston groove 303a. The water pressure acts on the bottom of the first piston 303b, causing the first piston 303b to move downward against the elastic force of the first spring 303c, and driving the positioning rod 303d to move downward synchronously, thereby inserting the positioning rod 303d into the positioning groove 303e at the bottom of the mounting slot 302 of the top mold 104, realizing the automatic centering and locking of the top mold 104.

[0047] When the gear pump 202 stops working, the water pressure inside the piston groove 303a gradually disappears, the first spring 303c releases its elastic restoring force, pushes the first piston 303b to drive the positioning rod 303d to automatically reset, thereby releasing the locking state of the top mold 104, which is convenient for quick disassembly and assembly.

[0048] The second positioning component 305 includes a conical block 305a, a second self-sealing male plug 305c fixedly installed inside the conical block 305a, a conical groove 305d opened on the rear side of the bottom of the bottom mold 105, a second self-sealing female plug 305e installed inside the conical groove 305d, and the second self-sealing male plug 305c and the second self-sealing female plug 305e are plugged in to realize the conduction and sealing connection of the cooling water channel of the bottom mold 105.

[0049] A second spring 305b is fixedly connected to the bottom of the conical block 305a. The bottom end of the second spring 305b is fixedly connected to the inner wall of the mounting groove 304. The second spring 305b is used to provide elastic support and reset force for the conical block 305a, so that the conical block 305a has buffer and automatic reset functions during insertion and removal.

[0050] During the installation of the bottom mold 105, the conical block 305a is gradually inserted into the conical groove 305d under the guidance of the second spring 305b, so that the second self-sealing male plug 305c and the second self-sealing female plug 305e automatically complete the docking, thereby realizing the conduction of the cooling medium passage and allowing the cooling medium to enter the cooling tank 208 inside the bottom mold 105 for heat exchange, improving the heat dissipation efficiency. The bottom of the second self-sealing male plug 305c is fixedly connected to a telescopic flexible tube 305f, which can ensure the stable movement of the second self-sealing male plug 305c. The bottom end of the telescopic flexible tube 305f is fixedly connected to a drain pipe 305g, so that the coolant inside the cooling tank 208 can enter the telescopic flexible tube 305f through the second self-sealing male plug 305c and the second self-sealing female plug 305e and be discharged into the storage tank 201 through the drain pipe 305g to complete the rotational circulation. The other end of the drain pipe 305g is connected to the storage tank 201.

[0051] During the disassembly of the bottom mold 105, as the bottom mold 105 is gradually pulled away, the conical block 305a automatically resets under the elastic restoring force of the second spring 305b. At the same time, under the reverse guiding action, it drives the second self-sealing male plug 305c and the second self-sealing female plug 305e to gradually separate. When they are completely separated, the self-sealing structure automatically closes, thereby cutting off the cooling medium passage, avoiding coolant leakage, and improving disassembly safety and sealing reliability.

[0052] Both sides of the top of the mounting block 301 are movably embedded with ball bearings 306. Several ball bearings 306 are provided and are evenly distributed. The ball bearings 306 are movably connected to the inner wall of the mounting slot 302. The ball bearings 306 roll in contact with the inner wall of the mounting slot 302, playing a guiding and drag-reducing role during the insertion and removal of the top mold 104, thereby reducing frictional resistance, improving assembly efficiency and extending service life.

[0053] Working principle: Before use, the top mold 104 is installed on the mounting block 301 at the bottom of the pressure head 103, and the mounting slot 302 at the top of the top mold 104 is initially inserted into the mounting block 301. At the same time, the ball bearings 306 on both sides of the mounting block 301 contact the inner wall of the mounting slot 302 to achieve the guiding and resistance-reducing installation of the top mold 104, so that the top mold 104 can smoothly enter the predetermined installation position.

[0054] The bottom mold 105 is then inserted into the mounting frame 205. During insertion, the bottom mold 105 first engages with the internal structure of the mounting frame 205 and gradually enters the conical groove 305d under the action of the conical block 305a. During this process, the conical block 305a is displaced by the structural guidance and compresses the second spring 305b, causing the second self-sealing male plug 305c and the second self-sealing female plug 305e to gradually align and connect, thereby enabling the coolant inside the cooling tank 208 of the bottom mold 105 to automatically connect with the storage tank 201 through the telescopic flexible pipe 305f and the drain pipe 305g, forming a cooling medium circulation path.

[0055] After the bottom mold 105 is installed, the gear pump 202 is started. The cooling medium in the storage tank 201 generates a stable water pressure under the action of the pump body, and is then transported into each channel of the system through the connecting pipe 203, the water injection cylinder 204 and the hose 303g in sequence.

[0056] Under water pressure, the lifting cylinder 207b is pushed upward by the fluid pressure and stretches the first tension spring 207a and the telescopic protective sleeve 207c, so that the first self-sealing male plug 207d and the first self-sealing female plug 207e fit tightly together, realizing the automatic conduction and sealing connection of the cooling passage of the top mold 104, thereby ensuring the temperature control of the top mold 104 during the heating and molding process, and ensuring the stability of the bottom mold 105 during use.

[0057] Meanwhile, the cooling medium continues to enter the piston groove 303a, forming a hydraulic thrust that causes the first piston 303b to move downwards against the elastic force of the first spring 303c, and simultaneously drives the positioning rod 303d to descend. During the descent, the positioning rod 303d inserts into the positioning groove 303e at the bottom of the mounting slot 302 of the top mold 104, realizing automatic centering, guiding, limiting, and locking of the top mold 104, thereby ensuring precise fit between the top mold 104 and the bottom mold 105.

[0058] During pressure processing, the hydraulic rod 102 drives the pressure head 103 to press down, heating the top mold 104 to apply forming pressure to the workpiece. The bottom mold 105 cooperates with the top mold 104 to complete the shaping process. Throughout the process, the cooling system runs continuously, enabling rapid heat dissipation and stable temperature control of the bottom mold 105, thereby improving continuous production efficiency and processing quality stability.

[0059] Meanwhile, during equipment operation, the lubricating oil reservoir 209 inside the mounting frame 205 is squeezed by the second piston 212 under water pressure, causing the lubricating oil to be injected into the oil leakage groove 213 through the second one-way valve 217 under pressure and enter the installation gap between the mounting frame 205 and the bottom mold 105, thereby lubricating the sliding contact parts of the bottom mold 105, reducing the frictional resistance of disassembly and assembly, and improving the convenience of assembly and maintenance.

[0060] At the same time, when the second tension spring 211 drives the second piston 212 to move downward and reset, the lubricating oil reservoir 209 forms a negative pressure, thereby drawing the lubricating oil inside the oil tank 215 into the lubricating oil reservoir 209 through the first one-way valve 216 to replenish the lubricating oil.

[0061] After processing is completed, the gear pump 202 is turned off, and the water pressure inside the pipeline gradually decreases. At this time, the first tension spring 207a releases its elastic restoring force, pushing the lifting cylinder 207b to return to its original position, causing the first self-sealing male plug 207d and the first self-sealing female plug 207e to automatically separate, thereby cutting off the cooling passage of the top mold 104; at the same time, the first spring 303c pushes the first piston 303b to return to its original position, and drives the positioning rod 303d to exit the positioning groove 303e, releasing the locking state of the top mold 104.

[0062] The mold disassembly operation was then carried out, and the top mold 104 could be easily disassembled.

[0063] During the disassembly of the bottom mold 105, the bottom mold 105 is gradually pulled out from inside the mounting frame 205. The conical block 305a automatically rebounds under the elastic recovery action of the second spring 305b and gradually exits the conical groove 305d structure. During this process, the second self-sealing male plug 305c and the second self-sealing female plug 305e gradually separate under the reverse guiding action and eventually completely detach.

[0064] Once completely detached, the self-sealing structure automatically resets and closes, thereby quickly cutting off the cooling medium passage, preventing residual coolant leakage, and improving the safety and sealing reliability of the disassembly process.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forming press, comprising a base (100), characterized in that: An installation frame (101) is fixedly installed on the top of the base (100). A hydraulic rod (102) is fixedly installed inside the installation frame (101). A pressure head (103) is fixedly installed at the output end of the hydraulic rod (102). A heating top mold (104) is provided at the bottom of the pressure head (103). A bottom mold (105) is provided on the top of the base (100). The base (100) is provided with a cooling mechanism (200) for cooling the bottom mold (105). The bottom of the pressure head (103) is provided with a positioning mechanism (300) for mold positioning.

2. The forming press according to claim 1, characterized in that: The cooling mechanism (200) includes a storage box (201), a gear pump (202) is fixedly installed inside the storage box (201), the output end of the gear pump (202) is fixedly connected to a connecting pipe (203), the top of both sides of the connecting pipe (203) is fixedly connected to a water injection cylinder (204), the top of the base (100) is connected to an installation frame (205), the bottom mold (105) is movably inserted into the installation frame (205), the front sides of both sides of the bottom of the installation frame are provided with a movable hole (206), the top of the water injection cylinder (204) extends into the interior of the movable hole (206), the top of the water injection cylinder (204) is provided with a lifting and connecting component (207), and the bottom mold (105) is provided with a cooling groove (208).

3. A forming press according to claim 2, characterized in that: The positioning mechanism (300) includes a mounting block (301), which is fixedly connected to the bottom of the pressure head (103). The top of the top mold (104) is provided with a mounting slot (302), and the top mold (104) is inserted into the surface of the mounting block (301) through the mounting slot (302). The two sides inside the mounting block (301) are provided with first positioning components (303). The rear side of the bottom of the inner wall of the mounting frame (205) is provided with a mounting groove (304), and the interior of the mounting groove (304) is movably connected with a second positioning component (305).

4. A forming press according to claim 3, characterized in that: The lifting and connecting assembly (207) includes a first tension spring (207a), the top end of which is fixedly connected to a lifting cylinder (207b). A telescopic protective sleeve (207c) is fitted on the surface of the first tension spring (207a). The top end of the telescopic protective sleeve (207c) is fixedly connected to the bottom of the lifting cylinder (207b), and the bottom end of the telescopic protective sleeve (207c) is fixedly connected to the top of the water injection cylinder (204). The top end of the lifting cylinder (207b) is fixedly connected to a first self-sealing male plug (207d). A first self-sealing female plug (207e) is installed on both sides of the bottom of the bottom mold (105). The top end of the first self-sealing female plug (207e) is connected to the cooling tank (208), and the bottom end of the first self-sealing female plug (207e) is inserted into the first self-sealing male plug (207d).

5. A forming press according to claim 4, characterized in that: The first positioning assembly (303) includes a piston groove (303a), inside which a first piston (303b) is movably connected. A first spring (303c) is fixedly connected to the bottom of the first piston (303b), and the bottom end of the first spring (303c) is fixedly connected to the bottom of the inner wall of the piston groove (303a). A positioning rod (303d) is fixedly connected to the bottom of the first piston (303b), and the bottom end of the positioning rod (303d) extends through to the bottom of the mounting block (301) and is connected to the... The mounting block (301) is movably connected. Positioning grooves (303e) are provided on both sides of the bottom of the mounting slot (302). The positioning rod (303d) is movably connected to the positioning groove (303e). A water pipe (303f) is provided on the rear side of the mounting block (301). A flexible hose (303g) is fixedly connected to the rear end of the water pipe (303f). The bottom end of the flexible hose (303g) is fixedly connected to the rear end of the connecting pipe (203). The front end of the water pipe (303f) is connected to the piston groove (303a).

6. A forming press according to claim 5, characterized in that: The second positioning component (305) includes a conical block (305a), a second spring (305b) is fixedly connected to the bottom of the conical block (305a), the bottom end of the second spring (305b) is fixedly connected to the mounting groove (304), a second self-sealing male plug (305c) is fixedly installed inside the conical block (305a), a conical groove (305d) is opened on the rear side of the bottom of the bottom mold (105), a second self-sealing female plug (305e) is installed inside the conical groove (305d), the second self-sealing female plug (305e) is plugged into the second self-sealing male plug (305c), the bottom end of the second self-sealing male plug (305c) is fixedly connected to a telescopic flexible tube (305f), the bottom end of the telescopic flexible tube (305f) is fixedly connected to a drain pipe (305g), and the other end of the drain pipe (305g) is connected to the storage box (201).

7. A forming press according to claim 6, characterized in that: A lubricating oil reservoir (209) is provided on the rear side inside the mounting frame (205). A connecting pipe (210) is fixedly connected to the bottom end of the lubricating oil reservoir (209). The bottom end of the connecting pipe (210) is connected to the connecting pipe (203). A second tension spring (211) is fixedly connected to the bottom inside the lubricating oil reservoir (209). A second piston (212) is fixedly connected to the top end of the second tension spring (211). Oil leakage grooves (213) are provided on both sides of the inner wall of the mounting frame (205). An oil reservoir (215) is fixedly installed on the rear side of the top of the mounting frame (205). The bottom end of the oil reservoir (215) is fixedly connected to a first one-way valve (216). The oil reservoir (215) is connected to the lubricating oil reservoir (209) through the first one-way valve (216). The top two sides of the inner wall of the lubricating oil reservoir (209) are fixedly connected to a second one-way valve (217). The lubricating oil reservoir (209) is connected to the oil leakage groove (213) through the second one-way valve (217).

8. A forming press according to claim 7, characterized in that: Both sides of the top of the mounting block (301) are movably inlaid with balls (306). There are several balls (306) and they are evenly distributed. The balls (306) are movably connected to the inner wall of the mounting slot (302).

9. A forming press according to claim 8, characterized in that: A filling port (214) is fixedly installed on the rear side of the top of the oil storage tank.

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