Auxiliary structure for injection mold and working method of auxiliary structure

Abstract

The invention discloses an auxiliary structure for an injection mold and a working method of the auxiliary structure, and relates to the technical field of injection molds. The seat body is of a concave structure, four guide rods are welded in the seat body, an injection molding part is mounted on the four guide rods, and a discharging part is welded on the mold. Through the arrangement of the discharging part, on one hand, a second electric cylinder is controlled to contract, the second electric cylinder drives a driving block to move rightwards, a baffle drives a discharging rod to move rightwards under pushing of the driving block, and at the moment, blocking of a liquid inlet hole is relieved; injection molding liquid in the sleeve enters the gap between the mold A and the mold B through the liquid inlet hole to complete injection of the injection molding liquid; and on the other hand, during discharging, a second electric cylinder is controlled to contract, a baffle drives a discharging rod to move rightwards under pushing of a driving block, discharging can be completed at the moment, compared with an existing device, discharging can be achieved by adjusting a liquid inlet structure, a pushing discharging structure does not need to be independently arranged, and cost is saved.

Description

[0001] This is a divisional application. The application number of the original application is 2024109241717, and the patent title is: An injection mold with auxiliary structure. The original application date is July 11, 2024. The entire content of the original application is incorporated herein by reference. Technical Field

[0002] The present invention belongs to the technical field of injection molds, and more specifically, particularly relates to an injection mold with auxiliary structure. Background Art

[0003] An injection mold is a mold that injects high-temperature plastic liquid into the mold and forms it by cooling. When processing household appliance injection parts, an injection mold is required for injection molding. After the injection mold is opened, a discharging structure is needed to discharge the formed plastic products.

[0004] Although the existing device is provided with a discharging structure, its discharging structure is single. When the discharging structure fails, discharging cannot be carried out, and it needs to be repaired before the discharging action can be continued, which affects the production efficiency; the existing device has poor structure and cannot achieve the discharging action through the liquid inlet adjustment structure. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an injection mold with auxiliary structure to solve the problems that although the existing device is provided with a discharging structure, its discharging structure is single. When the discharging structure fails, discharging cannot be carried out, and it needs to be repaired before the discharging action can be continued, which affects the production efficiency; the existing device has poor structure and cannot achieve the discharging action through the liquid inlet adjustment structure.

[0006] The purpose and effect of the injection mold with auxiliary structure of the present invention are achieved by the following specific technical means: An injection mold with auxiliary structure includes a base body; the base body is of a concave structure, and four guide rods are welded inside the base body, and an injection part is installed on the four guide rods.

[0007] Among them, the injection part is composed of mold A, mold B, a threaded rod, and a first electric cylinder. Mold A and mold B slide on the four guide rods at a position to the right. A first electric cylinder is fixed to the left end face of the base body, and the extending end of the first electric cylinder is fixed to the left end face of mold B.

[0008] Among them, a threaded rod is threadedly connected to the base body, and the left end of the threaded rod rotates on mold A.

[0009] Among them, both mold A and mold B are of hollow structure, and two pipes for the circulation of cooling liquid inside mold A and mold B are welded on both mold A and mold B.

[0010] Among them, a discharging part is welded on the mold B. The discharging part is composed of a sleeve, a liquid inlet pipe, a discharging rod, a baffle, a stress rod, a liquid inlet hole, a first auxiliary block, a clamping groove, a protrusion, a second electric cylinder, a driving block and a spiral spring. A sleeve is welded on the left end face of the mold B. The sleeve is not communicated with the hollow part inside the mold B. A liquid inlet pipe is welded on the sleeve. The liquid inlet pipe is communicated with the sleeve and is connected to an injection liquid supply device.

[0011] Among them, a discharging rod slides in the sleeve. The discharging rod is of a stepped shaft structure and slides on the mold B. Six liquid inlet holes are arranged in an annular array inside the mold B. A baffle with a concave structure is welded on the discharging rod. A spiral spring is sleeved on the discharging rod. The left end of the spiral spring is in elastic contact with the baffle, and the right end of the spiral spring is in elastic contact with the sleeve. Under the elastic action of the spiral spring, the discharging rod is elastically clamped with the mold B, and at this time, the liquid inlet holes are in a sealed state.

[0012] Among them, a second electric cylinder is fixed on the left end face of the mold B. A driving block is welded on the extending end of the second electric cylinder. The driving block slides on the discharging rod, and the right end face of the driving block contacts the baffle.

[0013] Among them, when the first electric cylinder contracts, the discharging rod contacts the left end face of the inner wall of the seat body.

[0014] Among them, the baffle is of a concave structure. A stress rod is welded on the front end face and the rear end face of the inner wall of the baffle. Both stress rods are of a cylindrical rod structure. The inner ends of both stress rods are polished. After being polished, the inner ends of both stress rods are of an arc structure. A first auxiliary block in the shape of a rectangular block is welded on the front end face and the rear end face of the mold B. A clamping groove is arranged in a linear array on each first auxiliary block. A protrusion is welded in a linear array on each first auxiliary block. The protrusions and the clamping grooves are arranged in a staggered manner. Both stress rods are clamped with the clamping grooves.

[0015] Among them, a connecting block is rotated at the middle position of the front end face and the rear end face of the seat body. Both connecting blocks are welded to the base. A groove in the shape of a rectangular groove is arranged on the front end face of the seat body. An auxiliary part is welded on the mold B. The auxiliary part is composed of a mounting arm and a second auxiliary block. A mounting arm is welded on the front end face of the mold B. A second auxiliary block is welded at the lower end of the mounting arm. The second auxiliary block is of a rectangular block structure. The top end face of the second auxiliary block is polished. After being polished, the top end face of the second auxiliary block is of an arc structure. The top end face of the second auxiliary block contacts the bottom end face of the seat body. At this time, the seat body is in a horizontal state. The second auxiliary block is located on the left side of the groove. When the second auxiliary block moves to the left, the second auxiliary block is located inside the groove.

[0016] Among them, two rectangular block-shaped wooden blocks are fixed on the top surface of the base, and the two wooden blocks are aligned with the two bottom corners of the seat body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In this application, through the setting of the auxiliary part, when the mold is opened, the installation arm and the second auxiliary block move leftward with the mold B. When the second auxiliary block moves to the groove position, the seat body loses support. At this time, the seat body tilts to the right, and the seat body will hit the base at this time. Vibration can be generated through the impact, and the auxiliary unloading action can be completed through this vibration, and the unloading effect is good.

[0018] In this application, through the setting of the injection molding part and the unloading part, when the mold is opened, the unloading rod moves rightward under the blockage of the seat body to push out the finished product in the mold B.

[0019] In this application, through the setting of the unloading part, on the one hand, control the second electric cylinder to contract. The second electric cylinder drives the driving block to move rightward. Under the push of the driving block, the baffle drives the unloading rod to move rightward. At this time, the liquid inlet hole is released from the blockage, and the injection molding liquid in the sleeve enters the gap between the mold A and the mold B through the liquid inlet hole to complete the injection molding liquid filling; on the other hand, during unloading, control the second electric cylinder to contract. Under the push of the driving block, the baffle drives the unloading rod to move rightward. At this time, unloading can be completed. Compared with the existing device, unloading can also be achieved by adjusting the liquid inlet structure, and there is no need to separately set a structure for pushing and unloading, saving costs.

[0020] In this application, through the setting of the card slot and the protrusion, while the unloading rod moves rightward for unloading, both stress rods are continuously engaged with the card slot. When both stress rods are continuously engaged with the card slot, vibration will be generated, and the unloading can be assisted through this vibration, ensuring the unloading quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an axonometric structural schematic diagram of the injection mold with an auxiliary structure of the present invention.

[0022] Figure 2 is a front view structural schematic diagram of the injection mold with an auxiliary structure of the present invention.

[0023] Figure 3 is a top view structural schematic diagram of the injection mold with an auxiliary structure of the present invention.

[0024] Figure 4 is the present invention Figure 3 is an enlarged structural schematic diagram of part A.

[0025] Figure 5 is an axonometric structural schematic diagram of the injection mold with an auxiliary structure of the present invention after being partially cut open.

[0026] Figure 6 It is an axial structural schematic diagram of the discharge part of the present invention.

[0027] Figure 7 The present invention Figure 6 Schematic diagram of the enlarged structure at B.

[0028] Figure 8 It is a schematic diagram of the axial structure of the mold B of the present invention after being cut open.

[0029] Figure 9 The present invention Figure 8 Enlarged structural diagram at C.

[0030] In the figure, the corresponding relationship between the component names and the figure numbers is as follows: 1. seat body; 101. guide rod; 102. connection block; 103. base; 104. wooden block; 105. groove; 2. Injection molding part; 201. Mold A; 202. Mold B; 203. Threaded rod; 204. First electric cylinder; 3. Discharging part; 301. Casing; 302. Liquid inlet pipe; 303. Discharging rod; 304. Baffle; 305. Force rod; 306. Liquid inlet hole; 307. First auxiliary block; 308. Slot; 309. Protrusion; 310. Second electric cylinder; 311. Driving block; 312. Coil spring; 4. Auxiliary part; 401. Mounting arm; 402. Second auxiliary block. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments 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 described 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.

[0032] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which the present invention pertains. The words such as "a", "an", or "the" used in the description and claims of the present patent application do not denote a limitation in quantity either, but rather mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before such words cover the elements or objects listed after such words and their equivalents. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Words such as "upper", "lower", "left", and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0033] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples.

[0034] Example 1: As shown in the attached Figure 1 to the attached Figure 9 figures: The present invention provides an injection mold with an auxiliary structure, including a base body 1; the base body 1 is of a concave structure, and four guide rods 101 are welded inside the base body 1, and an injection part 2 is installed on the four guide rods 101.

[0035] Among them, the injection part 2 is composed of a mold A 201, a mold B 202, a threaded rod 203, and a first electric cylinder 204. The mold A 201 and the mold B 202 slide on the four guide rods 101 at a position to the right. A first electric cylinder 204 is fixed to the left end face of the base body 1, and the extending end of the first electric cylinder 204 is fixed to the left end face of the mold B 202. During use, by controlling the telescopic movement of the first electric cylinder 204, the mold opening and closing actions can be completed.

[0036] Among them, a threaded rod 203 is threadedly connected to the base body 1, and the left end of the threaded rod 203 rotates on the mold A 201. During use, when the threaded rod 203 is rotated, the mold A 201 is adjusted left and right under the drive of the threaded rod 203.

[0037] Among them, both the mold A 201 and the mold B 202 are of hollow structures, and two pipes for the circulation of cooling liquid inside the mold A 201 and the mold B 202 are welded on both the mold A 201 and the mold B 202. During use, the cooling liquid enters the inside of the mold A 201 and the mold B 202 through the circulation pipes, and rapid cooling of the injection molded parts can be achieved.

[0038] Among them, a discharging part 3 is welded on the mold B202. The discharging part 3 is composed of a sleeve 301, a liquid inlet pipe 302, a discharging rod 303, a baffle 304, a stress rod 305, a liquid inlet hole 306, a first auxiliary block 307, a clamping groove 308, a protrusion 309, a second electric cylinder 310, a driving block 311 and a spiral spring 312. A sleeve 301 is welded on the left end face of the mold B202. The sleeve 301 is not communicated with the hollow part inside the mold B202. A liquid inlet pipe 302 is welded on the sleeve 301. The liquid inlet pipe 302 is communicated with the sleeve 301. The liquid inlet pipe 302 is connected to the injection liquid supply device.

[0039] Among them, a discharging rod 303 slides in the sleeve 301. The discharging rod 303 is of a stepped shaft structure. The discharging rod 303 slides on the mold B202. Six liquid inlet holes 306 are arranged in an annular array inside the mold B202. A baffle 304 with a concave structure is welded on the discharging rod 303. A spiral spring 312 is sleeved on the discharging rod 303. The left end of the spiral spring 312 is elastically in contact with the baffle 304. The right end of the spiral spring 312 is elastically in contact with the sleeve 301. Under the elastic action of the spiral spring 312, the discharging rod 303 is elastically clamped with the mold B202. At this time, the liquid inlet holes 306 are in a sealed state.

[0040] Among them, a second electric cylinder 310 is fixed on the left end face of the mold B202. A driving block 311 is welded on the extending end of the second electric cylinder 310. The driving block 311 slides on the discharging rod 303. The right end face of the driving block 311 is in contact with the baffle 304. When it is necessary to inject injection liquid, control the second electric cylinder 310 to contract. The second electric cylinder 310 drives the driving block 311 to move to the right. Under the push of the driving block 311, the baffle 304 drives the discharging rod 303 to move to the right. At this time, the liquid inlet holes 306 are released from being blocked. The injection liquid in the sleeve 301 enters the gap between the mold A201 and the mold B202 through the liquid inlet holes 306. The same operation can also be used for discharging when the injection is completed.

[0041] Among them, when the first electric cylinder 204 contracts, the discharging rod 303 contacts the left end face of the inner wall of the seat body 1. During the mold opening process, under the block of the seat body 1, the discharging rod 303 moves to the right to push out the finished product in the mold B202.

[0042] Among them, the baffle 304 is of a concave structure. A stress rod 305 is welded to both the front end face and the rear end face of the inner wall of the baffle 304. Both stress rods 305 are of a cylindrical rod structure. The inner ends of both stress rods 305 are polished. After polishing, the inner ends of both stress rods 305 are of an arc structure. A first auxiliary block 307 in the shape of a rectangular block is welded to both the front end face and the rear end face of the mold B202. A card slot 308 is linearly arrayed on each first auxiliary block 307. A protrusion 309 is linearly arrayed and welded on each first auxiliary block 307. The protrusion 309 and the card slot 308 are arranged in a staggered manner. Both stress rods 305 are clamped with the card slot 308. While the discharging rod 303 moves to the right for discharging, both stress rods 305 are continuously clamped with the card slot 308. When both stress rods 305 are continuously clamped with the card slot 308, vibration will be generated, and the discharging can be assisted through this vibration.

[0043] Among them, a connecting block 102 is rotatably arranged at the middle positions of both the front end face and the rear end face of the seat body 1. Both connecting blocks 102 are welded to the base 103. A groove 105 in the shape of a rectangular groove is formed on the front end face of the seat body 1. An auxiliary part 4 is welded to the mold B202. The auxiliary part 4 is composed of a mounting arm 401 and a second auxiliary block 402. A mounting arm 401 is welded to the front end face of the mold B202. A second auxiliary block 402 is welded to the lower end of the mounting arm 401. The second auxiliary block 402 is of a rectangular block structure. The top end face of the second auxiliary block 402 is polished. After polishing, the top end face of the second auxiliary block 402 is of an arc structure. The top end face of the second auxiliary block 402 contacts the bottom end face of the seat body 1. At this time, the seat body 1 is in a horizontal state. The second auxiliary block 402 is located on the left side of the groove 105. When the second auxiliary block 402 moves to the left, the second auxiliary block 402 is located inside the groove 105. When the mold is opened, the mounting arm 401 and the second auxiliary block 402 move to the left following the mold B202. When the second auxiliary block 402 moves to the position of the groove 105, the seat body 1 loses support. At this time, the seat body 1 tilts to the right, and at this time, the seat body 1 will impact the base 103. Vibration can be generated through the impact, and the auxiliary discharging action can be completed through this vibration.

[0044] Among them, two wooden blocks 104 in the shape of rectangular blocks are fixed on the top end face of the base 103. The two wooden blocks 104 are aligned with the two lower corners of the seat body 1. When the seat body 1 tilts left and right, it will contact the wooden blocks 104. At this time, the degree of bump damage to the seat body 1 can be reduced.

[0045] Embodiment Two: On the basis of Embodiment One, the elastic force of the spiral spring 312 is greater than the resistance of the clamping of the two stress rods 305 with the card slot 308. During use, under the push of the elastic force of the spiral spring 312, the stress rod 305 can be reset to the left.

[0046] Working principle: Control the first electric cylinder 204 to extend. When the first electric cylinder 204 extends, it pushes the mold B202 to move to the right to complete mold closing; after mold closing, inject the injection liquid into the gap between the mold A201 and the mold B202. Control the second electric cylinder 310 to contract. The second electric cylinder 310 drives the driving block 311 to move to the right. Under the push of the driving block 311, the baffle 304 drives the unloading rod 303 to move to the right. At this time, the liquid inlet hole 306 is released from being blocked, and the injection liquid in the sleeve 301 enters the gap between the mold A201 and the mold B202 through the liquid inlet hole 306; start the cooling liquid circulation pump, and the cooling liquid enters the mold A201 and the mold B202 for internal circulation to realize the cooling of the injection liquid; after cooling, control the first electric cylinder 204 to contract, and the first electric cylinder 204 drives the mold B202 to move to the left to open the mold. When the mold B202 moves to the left, the seat body 1 blocks the unloading rod 303. At this time, the unloading rod 303 pushes the finished product to fall to complete unloading; while the unloading rod 303 moves to the right for unloading, both force-bearing rods 305 are continuously engaged with the card slots 308. When both force-bearing rods 305 are continuously engaged with the card slots 308, vibrations will be generated, and the unloading can be assisted through this vibration; at the same time, when the mold is opened, the mounting arm 401 and the second auxiliary block 402 move to the left with the mold B202. When the second auxiliary block 402 moves to the position of the groove 105, the seat body 1 loses support. At this time, the seat body 1 tilts to the right, and at this time, the seat body 1 will impact the base 103, and vibrations can be generated through this impact, and the auxiliary unloading action can be completed through this vibration; after the left end of the unloading rod 303 is damaged, unloading can also be completed by controlling the second electric cylinder 310 to contract. When the second electric cylinder 310 contracts, it drives the driving block 311 to move to the right. Under the push of the driving block 311, the baffle 304 and the force-bearing rod 305 move to the right to complete unloading.

[0047] Although the present application has been described with reference to the above embodiments, those skilled in the art will understand that various changes can be made without departing from the concept and scope of the present application as defined by the appended claims. Although this specification contains many details of specific implementation manners, these should not be construed as limitations on the scope of the claims of the present application, but rather as descriptions of the features specific to a particular embodiment. The scope of the present application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

[0048] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A discharging auxiliary structure for an injection mold, characterized in that: include: The injection molding part (2) is composed of a mold A (201) and a mold B (202). The mold A (201) and the mold B (202) slide on the right side of the four guide rods (101). The mold B (202) is welded with a discharge part (3). The discharge part (3) is composed of a sleeve (301), a liquid inlet pipe (302), a discharge rod (303), a baffle (304), a force rod (305), a liquid inlet hole (306), a first auxiliary block (307), a slot ( 308), a protrusion (309), a second electric cylinder (310), a driving block (311) and a coil spring (312); a sleeve (301) is welded on the left end surface of the mold B (202); the sleeve (301) is not connected to the hollow part inside the mold B (202); a liquid inlet pipe (302) is welded on the sleeve (301); the liquid inlet pipe (302) is connected to the sleeve (301), and the liquid inlet pipe (302) is connected to the injection molding liquid supply device.

2. The unloading auxiliary structure for injection mold according to claim 1, characterized in that: A discharge rod (303) slides inside the sleeve (301). The discharge rod (303) is a stepped shaft structure. The discharge rod (303) slides on the mold B (202). Six liquid inlet holes (306) are provided in a circular array inside the mold B (202). A baffle plate (304) with a concave structure is welded to the discharge rod (303). A coil spring (312) is sleeved on the discharge rod (303). The left end of the coil spring (312) is in elastic contact with the baffle plate (304), and the right end of the coil spring (312) is in elastic contact with the sleeve (301). Under the elastic action of the coil spring (312), the discharge rod (303) is elastically clamped with the mold B (202). At this time, the liquid inlet hole (306) is in a sealed state.

3. A discharge auxiliary structure for an injection mold as claimed in claim 2, characterized in that: A second electric cylinder (310) is fixed to the left end surface of the mold B (202); a driving block (311) is welded to the protruding end of the second electric cylinder (310); the driving block (311) slides on the discharge rod (303); and the right end surface of the driving block (311) contacts the baffle plate (304).

4. A discharge auxiliary structure for an injection mold as claimed in claim 2, characterized in that: The baffle (304) is a concave structure. A force-bearing rod (305) is welded to the front end face and the rear end face of the inner wall of the baffle (304). The two force-bearing rods (305) are both cylindrical rod-shaped structures. The inner ends of the two force-bearing rods (305) are polished. After the polishing, the inner ends of the two force-bearing rods (305) are both arc-shaped structures. A first auxiliary block (307) with a rectangular block structure is welded to the front end face and the rear end face of the mold B (202). A clamping groove (308) is provided in a linear array on each first auxiliary block (307). A protrusion (309) is welded to each first auxiliary block (307) in a linear array. The protrusion (309) and the clamping groove (308) are arranged in a staggered manner. The two force-bearing rods (305) are clamped to the clamping groove (308).

5. A discharge auxiliary structure for an injection mold as claimed in claim 1, characterized in that: It also comprises a seat body (1), four guide rods (101) are welded inside the seat body (1), the four guide rods (101) are mounted with an injection molding part (2), a first electric cylinder (204) is fixed to the left end surface of the seat body (1), and the extended end of the first electric cylinder (204) is fixed to the left end surface of the mold B (202).

6. A discharge auxiliary structure for an injection mold as claimed in claim 5, characterized in that: When the first electric cylinder (204) contracts, the unloading rod (303) contacts the left end surface of the inner wall of the seat body (1).

7. A discharge auxiliary structure for an injection mold as claimed in claim 5, characterized in that: A connecting block (102) is rotatably provided at the middle position of the front end face and the rear end face of the seat body (1), and the two connecting blocks (102) are welded to the base (103); a groove (105) with a rectangular groove structure is provided on the front end face of the seat body (1); an auxiliary part (4) is welded on the mold B (202), and the auxiliary part (4) is composed of a mounting arm (401) and a second auxiliary block (402); a mounting arm (401) is welded on the front end face of the mold B (202), and a mounting arm (401) is welded at one end below the mounting arm (401). The second auxiliary block (402) is a rectangular block structure. The top surface of the second auxiliary block (402) is polished. After the polishing, the top surface of the second auxiliary block (402) is an arc structure. The top surface of the second auxiliary block (402) contacts the bottom surface of the seat body (1). At this time, the seat body (1) is in a horizontal state. The second auxiliary block (402) is located on the left side of the groove (105). When the second auxiliary block (402) moves to the left, the second auxiliary block (402) is located inside the groove (105).

8. A discharge auxiliary structure for an injection mold as claimed in claim 1, characterized in that: The mold A (201) and the mold B (202) are both hollow structures, and two pipes for circulating cooling liquid inside the mold A (201) and the mold B (202) are welded to the mold A (201) and the mold B (202).

9. A method for operating a discharge auxiliary structure for an injection mold, characterized in that: The specific working method is as follows: 1): Control the first electric cylinder (204) to extend, and when the first electric cylinder (204) extends, the mold B (202) is pushed to move to the right to complete mold closing; 2): After closing the mold, injecting the injection liquid into the gap between mold A (201) and mold B (202); 3): Control the second electric cylinder (310) to contract, the second electric cylinder (310) drives the driving block (311) to move rightward, and the baffle plate (304) drives the unloading rod (303) to move rightward under the push of the driving block (311), at which time the liquid inlet hole (306) is unblocked, and the injection liquid in the sleeve (301) enters the gap between the mold A (201) and the mold B (202) through the liquid inlet hole (306); 4): Start the cooling liquid circulation pump, and the cooling liquid enters the mold A (201) and the mold B (202) for circulation to cool the injection molding liquid; 5): After cooling, the first electric cylinder (204) is controlled to contract, and the first electric cylinder (204) drives the mold B (202) to move leftward to open the mold. When the mold B (202) moves leftward, the seat body (1) blocks the unloading rod (303). At this time, the unloading rod (303) pushes the finished product to fall and complete the unloading; 6): When the unloading rod (303) moves to the right to unload, the two force-bearing rods (305) are continuously engaged with the slots (308). When the force-bearing rods (305) are continuously engaged with the slots (308), vibration is generated, and the unloading can be assisted by the vibration; 7): At the same time, when the mold is opened, the mounting arm (401) and the second auxiliary block (402) move to the left following the mold B (202). When the second auxiliary block (402) moves to the position of the groove (105), the seat body (1) loses support. At this time, the seat body (1) tilts to the right. At this time, the seat body (1) hits the base (103), and vibration is generated by the collision. The auxiliary unloading action can be completed by the vibration; 8): After the left end of the unloading rod (303) is damaged, unloading can also be completed by controlling the second electric cylinder (310) to retract. When the second electric cylinder (310) retracts, it drives the driving block (311) to move rightward. Under the push of the driving block (311), the baffle plate (304) and the force rod (305) move rightward to complete unloading.

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