A kind of injection mold pressure maintaining device

Abstract

The utility model discloses a kind of injection mould pressure maintaining devices, including mould body, mould body includes upper die and lower die, further include pressure maintaining locking assembly, the two sides of upper die and lower die are provided with pressure maintaining locking assembly;Pressure maintaining locking assembly includes suction module and locking module, suction module is installed between upper die and lower die, locking module is installed in suction module;When this injection mould pressure maintaining device closes mould, the fixed plate at upper die is engaged into the fixed clamping groove of the fixed seat at lower die, then start first electromagnet and second electromagnet, so that fixed plate is tightly magnetically attracted in fixed seat, while the ejector rod in the mounting hole of fixed plate is magnetically attracted and pushed into fixed clamping hole, further fixed plate and fixed seat are fixed, so that upper die and lower die can be firmly adhered together, so that upper die and lower die can be pressure maintained outside injection molding equipment, facilitate the production of next mould cooperation injection molding equipment, improve the production efficiency of injection molding equipment.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a pressure holding device for injection molds. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of colors and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates, and can create complex shapes. Injection molding is suitable for mass production and molding of complex-shaped products. It involves injecting completely molten plastic material, stirred by a screw at a specific temperature, into an injection mold, and then cooling and solidifying to obtain the molded product. This method is suitable for the mass production of complex-shaped parts and is one of the important processing methods.

[0003] To ensure production efficiency, injection molding equipment often uses turntables and other devices to install multiple sets of molds. After injection molding a single mold, the equipment often needs to hold the mold under pressure for a certain period of time to ensure the quality of the produced workpiece. During this period, the equipment cannot perform other operations and must wait for the workpiece to cool and be removed before the next injection operation can begin. This makes it inconvenient for users to switch between multiple molds for production and affects the production efficiency of the injection molding equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, a pressure holding device for injection molds is provided, which can improve the production efficiency of injection molding equipment.

[0005] To achieve the above objectives, the following solution is provided: a pressure holding device for injection molds, including a mold body, the mold body including an upper mold and a lower mold, and a pressure holding and locking component, wherein the pressure holding and locking component is installed between the upper mold and the lower mold, and pressure holding and locking components are provided on both sides of the upper mold and the lower mold; The pressure-holding and locking assembly includes a suction module and a locking module. The suction module is installed between the upper mold and the lower mold, and the locking module is installed inside the suction module. The attraction module includes a fixed base, a first electromagnet, and a fixed plate. The fixed base is fixedly installed on the outer side wall of the lower mold. A fixing slot is provided on the fixed base. A plate-shaped first electromagnet is installed at the bottom of the fixing slot. The fixed plate is installed on the outer side wall of the upper mold through a mounting plate and the fixed plate is adapted to the fixing slot. The fixed plate is made of magnetic metal, so that the fixed plate can attract the first electromagnet. The locking module is installed at the fixed base and the fixed plate. The locking module includes a locking plate, a second electromagnetic sticker, and several push rods. The push rods are slidably installed in the mounting holes at the side end of the fixed plate. A reset mechanism for resetting the push rods is provided between the mounting holes and the push rods. The locking plate is fixedly installed in the fixing slot of the fixed base. A second electromagnet is installed on the side of the locking plate away from the fixed plate. Several fixing holes are provided at the locking plate. The top of the fixing holes has a sloping structure and is adapted to the push rods. The push rods are made of magnetic metal material.

[0006] Furthermore, the reset mechanism is a push spring, which is sleeved on the push rod. One end of the push spring abuts against a limiting block provided at the end of the push rod away from the card plate. The limiting hole is slidably installed in the mounting hole, and the other end of the push spring abuts against the end of the mounting hole.

[0007] Furthermore, the end of the top rod near the card plate has a hemispherical or conical structure.

[0008] Furthermore, the surfaces of the fixing plate and the fixing base are flush.

[0009] Furthermore, both the fixing plate and the top rod are made of hard steel.

[0010] The working principle and advantages of this utility model are as follows: When the upper mold and lower mold are closed, the fixing plate at the upper mold is engaged in the fixing slot of the fixing seat at the lower mold. Then, the first electromagnet and the second electromagnet are activated, so that the fixing plate is tightly magnetically attracted in the fixing seat. At the same time, the push rod in the mounting hole of the fixing plate is magnetically attracted and pushed into the fixing hole, further fixing the fixing plate and the fixing seat. This allows the upper mold and the lower mold to be firmly attached together, so that the upper mold and the lower mold can be pressure held outside the injection molding equipment, which is convenient for the next mold to cooperate with the injection molding equipment for production and improves the production efficiency of the injection molding equipment. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a structural diagram of the suction and locking component of this utility model.

[0012] The reference numerals in the accompanying drawings include: 1. Lower mold, 2. Upper mold, 3. Fixed base, 31. Fixed slot, 4. First electromagnet, 5. Card plate, 51. Fixed hole, 6. Second electromagnet, 7. Mounting plate, 8. Fixed plate, 81. Mounting hole, 9. Push rod, 91. Limit block, 92. Push spring. Detailed Implementation

[0013] The following detailed explanation illustrates the specific implementation methods: like Figures 1 to 2As shown: A pressure-holding device for injection molds includes a mold body, which includes an upper mold 2 and a lower mold 1. It also includes a pressure-holding locking component, which is installed between the upper mold 2 and the lower mold 1. Pressure-holding locking components are provided on both sides of the upper mold 2 and the lower mold 1. The two pressure-holding locking components are used to perform pressure-holding locking between the upper mold 2 and the lower mold 1 outside the injection molding equipment. The pressure-holding and locking assembly includes a suction module and a locking module. The suction module is installed between the upper mold 2 and the lower mold 1 and is used to tightly fix the upper mold 2 and the lower mold 1. The locking module is installed inside the suction module and is used to lock the suction module to improve the pressure-holding effect of the suction module. The suction module includes a fixed base 3, a first electromagnet 4, and a fixed plate 8. The fixed base 3 is fixedly installed on the outer side wall of the lower mold 1. A fixed slot 31 is provided at the fixed base 3. The plate-shaped first electromagnet 4 is installed at the bottom of the fixed slot 31. The fixed plate 8 is installed on the outer side wall of the upper mold 2 through the mounting plate 7 and the fixed plate 8 is adapted to the fixed slot 31. When the upper mold 2 and the lower mold 1 are closed, the fixed plate 8 can be inserted into the fixed slot 31 at the fixed base 3. The fixed plate 8 is made of magnetic metal, so that the fixed plate 8 can be attracted with the first electromagnet 4, and the fixed plate 8 and the fixed base 3 are magnetically attracted together, thereby making the upper mold 2 and the lower mold 1 fit tightly together for pressure holding operation. The locking module is installed at the fixed base 3 and the fixed plate 8. The locking module includes a locking plate 5, a second electromagnet 6, and several push rods 9. The push rods 9 are slidably installed in the mounting holes 8 at the side end of the fixed plate 8. The mounting holes 8 have a stepped hole structure, and the push rods 9 can slide and extend within the mounting holes 8. A reset mechanism is provided between the mounting holes 8 and the push rods 9. The locking plate 5 is fixedly installed in the fixing slot 31 of the fixed base 3. The second electromagnet 6 is installed on the side of the locking plate 5 away from the fixed plate 8. The push rods 9 are made of magnetic metal material. This allows the second electromagnet 6 to attract the push rod 9, causing the push rod 9 to extend from the mounting hole 8. The clamping plate 5 has several fixing holes 51 that are adapted to the push rod 9, allowing the push rod 9 to be inserted into the fixing holes 51 after it extends. The top of the fixing hole 51 has a sloping structure, so when the push rod 9 presses against the top sloping surface of the fixing hole 51, the sloping surface will press the push rod 9 down, which will then press the fixing plate 8 down, making the fixing plate 8 fit more tightly with the fixing seat 3.

[0014] The reset mechanism is a push spring 92, which is sleeved on the push rod 9. One end of the push spring 92 abuts against the limiting block 91 set at the end of the push rod 9 away from the clamping plate 5. The limiting hole is slidably installed in the mounting hole 8. The other end of the push spring 92 abuts against the end of the mounting hole 8, so that the push rod 9 can be reset under the action of the push spring 92 and retract into the mounting hole 8 when it is not magnetically attracted by the second electromagnet 6.

[0015] The end of the push rod 9 near the card plate 5 is hemispherical or conical, which facilitates the guide of the push rod 9 into the fixing hole 51.

[0016] The surfaces of the fixing plate 8 and the fixing base 3 are flush.

[0017] Both the fixing plate 8 and the top rod 9 are made of hard steel, which has great strength and magnetism.

[0018] The specific implementation process is as follows: When using this injection mold pressure holding device, firstly, the upper mold 2 and the lower mold 1 are closed. The injection molding equipment injects plastic into the upper mold 2 and the lower mold 1. When the upper mold 2 and the lower mold 1 are closed, the lower mold 1, through the mounting plate 7, drives the fixing plate 8 to insert into the fixing slot 31 of the mounting seat at the lower mold 1. Then, the second electromagnet 6 is activated, and the second electromagnet 6 magnetically pulls out the push rod 9 in the mounting hole 8 at the side end of the fixing plate 8, so that the limit block 91 compresses the push spring 92, and the push rod 9 extends and inserts into the fixing hole 51 of the clamping plate 5. The push rod 9 presses against the inclined surface at the top of the fixing hole 51. Under the action of the inclined surface... The reaction force of the ejector pin 9 pushes the ejector pin 9 downward, which in turn pushes the fixing plate 8 downward, making the fixing plate 8 and the fixing seat 3 firmly fixed. Then, the first magnet is activated, and the first electromagnet 4 attracts the fixing plate 8, so that the fixing plate 8 is firmly fixed in the fixing slot 31 of the fixing seat 3. After the injection molding equipment finishes injection molding, the mold is removed from the injection molding equipment and is held under pressure and cooled outside the injection molding equipment. The next mold then enters the injection molding equipment for injection molding. By repeating the above process, the injection molding equipment can be fully utilized to injection molds, thereby improving the overall production efficiency of the injection molding equipment.

[0019] When the upper mold 2 and lower mold 1 are closed, the fixing plate 8 at the upper mold 2 is engaged in the fixing slot 31 of the fixing seat 3 at the lower mold 1. Then, the first electromagnet 4 and the second electromagnet 6 are activated, so that the fixing plate 8 is tightly magnetically attracted in the fixing seat 3. At the same time, the push rod 9 in the mounting hole 8 of the fixing plate 8 is magnetically attracted and pushed into the fixing hole 51, further fixing the fixing plate 8 and the fixing seat 3. This allows the upper mold 2 and the lower mold 1 to be firmly attached together, so that the upper mold 2 and the lower mold 1 can be pressure-held outside the injection molding equipment, which is convenient for the next mold to cooperate with the injection molding equipment for production and improves the production efficiency of the injection molding equipment.

[0020] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the applicability of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pressure-holding device for injection molds, comprising a mold body, the mold body including an upper mold and a lower mold, characterized in that: It also includes a pressure holding and locking assembly, which is installed between the upper mold and the lower mold, and pressure holding and locking assemblies are provided on both sides of the upper mold and the lower mold; The pressure-holding and locking assembly includes a suction module and a locking module. The suction module is installed between the upper mold and the lower mold, and the locking module is installed inside the suction module. The attraction module includes a fixed base, a first electromagnet, and a fixed plate. The fixed base is fixedly installed on the outer side wall of the lower mold. A fixing slot is provided on the fixed base. A plate-shaped first electromagnet is installed at the bottom of the fixing slot. The fixed plate is installed on the outer side wall of the upper mold through a mounting plate and the fixed plate is adapted to the fixing slot. The fixed plate is made of magnetic metal, so that the fixed plate can attract the first electromagnet. The locking module is installed at the fixed base and the fixed plate. The locking module includes a locking plate, a second electromagnetic sticker, and several push rods. The push rods are slidably installed in the mounting holes at the side end of the fixed plate. A reset mechanism for resetting the push rods is provided between the mounting holes and the push rods. The locking plate is fixedly installed in the fixing slot of the fixed base. A second electromagnet is installed on the side of the locking plate away from the fixed plate. Several fixing holes are provided at the locking plate. The top of the fixing holes has a sloping structure and is adapted to the push rods. The push rods are made of magnetic metal material.

2. The injection mold pressure holding device according to claim 1, characterized in that: The reset mechanism is a push spring, which is sleeved on the push rod. One end of the push spring abuts against a limiting block set at the end of the push rod away from the card plate. The limiting hole is slidably installed in the mounting hole, and the other end of the push spring abuts against the end of the mounting hole.

3. The injection mold pressure holding device according to claim 1, characterized in that: The end of the top rod near the card plate has a hemispherical or conical structure.

4. The injection mold pressure holding device according to claim 1, characterized in that: The surface of the fixing plate is flush with the surface of the fixing base.

5. The injection mold pressure holding device according to claim 1, characterized in that: Both the fixing plate and the top rod are made of hard steel.

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