A locking mechanism for an injection mold for automotive parts

Abstract

This utility model relates to the field of automotive component injection molding technology, and in particular to a locking mechanism for an automotive component injection mold. It includes a base plate, a top plate directly above the base plate, and support rods fixedly connected to the four corners of the top of the base plate. The top ends of the four support rods are respectively fixedly connected to the four corners of the bottom of the top plate. A mold body is disposed between the base plate and the top plate. The mold body includes a lower mold disposed in the middle of the top of the base plate, and an upper mold directly above the lower mold. Locking components for locking the mold body are disposed on both sides of the lower mold and both sides of the upper mold. A cooling component for cooling the lower mold is disposed on one side of the lower mold. Extension plates are fixedly connected to the top of both sides of the upper mold. This mechanism enables rapid locking and fixing of the mold body, preventing loosening or displacement during injection molding, improving cooling efficiency, and ensuring the molding quality of the injection molded parts.

Description

Technical Field

[0001] This utility model relates to the field of automotive component injection molding technology, specifically a locking mechanism for automotive component injection molds. Background Technology

[0002] Automotive component injection molds are molds used to manufacture automotive parts. Through the injection molding process, plastic granules are heated and melted, then injected into the mold cavity. Under the constraint of the mold, they cool and solidify, thus obtaining automotive parts with specific shapes and sizes. During the actual use of injection molds, due to the influence of various external factors, such as vibration during equipment operation or pressure fluctuations during injection, loosening and displacement may gradually occur, leading to problems such as mold misalignment and incorrect mold. This not only directly affects the molding quality and precision of the product, but in severe cases, it may even lead to the complete scrapping of the produced products. Utility Model Content

[0003] The purpose of this invention is to provide a locking mechanism for an injection mold of automotive parts to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A locking mechanism for an injection mold of an automotive part includes a base plate, a top plate directly above the base plate, support rods fixedly connected to the four corners of the top of the base plate, the top ends of the four support rods being fixedly connected to the four corners of the bottom of the top plate, a mold body between the base plate and the top plate, the mold body including a lower mold disposed in the middle of the top of the base plate, an upper mold disposed directly above the lower mold, locking components for locking the mold body being disposed on both sides of the lower mold and both sides of the upper mold, a cooling component for cooling the lower mold being disposed on one side of the lower mold, and extension plates fixedly connected to the top of both sides of the upper mold, with guide rods penetrating both ends of the two extension plates.

[0006] As a preferred embodiment of this utility model, the bottom ends of the four guide rods are fixedly connected to the top of the base plate, the top ends of the four guide rods are fixedly connected to the bottom of the top plate, and the outer walls of the four guide rods are slidably connected to the inner walls of the two extension plates respectively.

[0007] As a preferred embodiment of this utility model, a hydraulic rod is fixedly connected to the top of the top plate, the bottom end of the hydraulic rod penetrates the top plate and is fixedly connected to the top of the upper mold, and a cooling cavity is provided on the inner wall of the lower mold.

[0008] As a preferred embodiment of this utility model, the locking assembly includes plug-in rods fixedly connected to the bottom of the two extension plates. Each of the two plug-in rods has a snap-fit ​​block fixedly connected to its bottom on the side furthest from each other. The cross-sections of the two snap-fit ​​blocks are both trapezoidal. Fixed housings are provided on both sides of the lower mold. The bottom of each of the two fixed housings is fixedly connected to the top of the base plate.

[0009] As a preferred embodiment of this utility model, the two plug-in rods are respectively inserted into the interiors of the two fixed housings. A pull rod passes through the two fixed housings on the side away from each other. A spring is sleeved on the end of each pull rod located outside the fixed housing. A locking block is fixedly connected to the end of each pull rod extending into the interior of the fixed housing. The bottom of each locking block is slidably connected to the bottom of the inner cavity of the two fixed housings.

[0010] By using the above technical solution, the locking block can be released by pulling the lever to disengage it from the top of the latching block.

[0011] As a preferred embodiment of this utility model, the cross-sections of the two locking blocks are also trapezoidal, and the bottom of the inner cavity of the two fixed housings is provided with a snap-fit ​​groove. The two snap-fit ​​grooves are symmetrically arranged and are respectively located directly below the two plug-in rods and the snap-fit ​​blocks. The two snap-fit ​​blocks are movably connected to the two snap-fit ​​grooves respectively.

[0012] Through the above technical solution, the plug-in rod and the snap-fit ​​block extend into the interior of the fixed shell, are inserted into the interior of the snap-fit ​​groove, and are positioned and locked by the locking block, so as to realize the quick locking and fixing of the mold body, avoid loosening or displacement during the injection molding process, and ensure the molding quality and precision of the product.

[0013] As a preferred embodiment of this utility model, the cooling assembly includes a water storage tank disposed on one side of the lower mold, a water pump fixedly connected to the front of the water storage tank, a water pump connected to a suction pipe on the side of the water pump away from the lower mold, the other end of the suction pipe extending into the interior of the water storage tank, and a delivery pipe connected to the side of the water pump near the lower mold.

[0014] Through the above technical solution, cold water can be delivered to the interior of the cooling chamber by the water pump, water extraction pipe and delivery pipe, so as to quickly cool the lower mold, improve the cooling efficiency and ensure the molding quality of the injection molded parts.

[0015] As a preferred embodiment of this utility model, the other end of the conveying pipe extends through the side wall of the lower mold to the interior of the cooling chamber. A return pipe is passed through the side of the lower mold away from the conveying pipe. The other end of the return pipe is fixedly connected to the back of the water storage tank. A cooling plate is connected to one side of the inner cavity of the water storage tank. A heat sink is fixedly connected to one side of the cooling plate. The other end of the heat sink extends to the outside of the water storage tank.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, during the descent of the upper mold, the plug-in rods and snap-fit ​​blocks on both sides extend into the interior of the fixed outer shell, insert into the interior of the snap-fit ​​groove, and are positioned and locked by the locking block, thereby realizing the quick locking and fixing of the mold body, avoiding loosening or displacement during the injection molding process, and ensuring the molding quality and precision of the product. At the same time, by pulling the pull rod, the locking block is disengaged from the top of the snap-fit ​​block, thus releasing the locking state.

[0018] 2. In this utility model, the water inside the water storage tank is cooled by heat sink. With the help of water pump, water suction pipe and delivery pipe, the cold water can be delivered to the interior of the cooling chamber to quickly cool the lower mold, improve cooling efficiency and ensure the molding quality of the injection molded parts. At the same time, the cooled water is delivered back to the water storage tank through the return pipe to realize water recycling and save water resources. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the mold body and locking assembly of this utility model;

[0021] Figure 3 This is a schematic diagram of the cooling component of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the locking assembly of this utility model;

[0023] Figure 5 This is a cross-sectional structural diagram of the cooling component of this utility model.

[0024] In the diagram: 1. Base plate; 2. Top plate; 3. Support rod; 4. Mold body; 5. Locking assembly; 6. Cooling assembly; 7. Hydraulic rod; 401. Lower mold; 402. Upper mold; 403. Extension plate; 404. Guide rod; 405. Cooling chamber; 501. Insert rod; 502. Snap-fit ​​block; 503. Fixed outer shell; 504. Pull rod; 505. Spring; 506. Locking block; 507. Snap-fit ​​groove; 601. Water tank; 602. Water pump; 603. Pumping pipe; 604. Delivery pipe; 605. Return pipe; 606. Cooling element; 607. Heat sink. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0027] For examples, please refer to Figure 1-5 This utility model provides a technical solution:

[0028] A locking mechanism for an injection mold of an automotive part includes a base plate 1, a top plate 2 directly above the base plate 1, support rods 3 fixedly connected to the four corners of the top of the base plate 1, the top ends of the four support rods 3 being fixedly connected to the four corners of the bottom of the top plate 2 respectively, a mold body 4 being disposed between the base plate 1 and the top plate 2, the mold body 4 including a lower mold 401 disposed in the middle of the top of the base plate 1, an upper mold 402 disposed directly above the lower mold 401, locking components 5 for locking the mold body 4 being disposed on both sides of the lower mold 401 and both sides of the upper mold 402, a cooling component 6 for cooling the lower mold 401 being disposed on one side of the lower mold 401, extension plates 403 being fixedly connected to the top of both sides of the upper mold 402, guide rods 404 penetrating both ends of the two extension plates 403, the extension plates 403 and the guide rods 404 can guide the upper mold 402, so that the upper mold 402 moves down precisely to fit with the lower mold 401;

[0029] The bottom ends of the four guide rods 404 are fixedly connected to the top of the base plate 1, the top ends of the four guide rods 404 are fixedly connected to the bottom of the top plate 2, the outer walls of the four guide rods 404 are slidably connected to the inner walls of the two extension plates 403 respectively, a hydraulic rod 7 is fixedly connected to the top of the top plate 2, the bottom end of the hydraulic rod 7 passes through the top plate 2 and is fixedly connected to the top of the upper mold 402, and a cooling cavity 405 is opened on the inner wall of the lower mold 401;

[0030] The locking assembly 5 includes insertion rods 501 fixedly connected to the bottom of two extension plates 403. Each insertion rod 501 has a locking block 502 fixedly connected to its bottom on the side furthest from each other. The cross-sections of both locking blocks 502 are trapezoidal. Fixed housings 503 are provided on both sides of the lower mold 401. The bottoms of both fixed housings 503 are fixedly connected to the top of the base plate 1. The two insertion rods 501 are respectively inserted into the interiors of the two fixed housings 503. Pull rods 504 extend through the side of each fixed housing 503 furthest from each other. Springs 505 are fitted onto the ends of both pull rods 504 located outside the fixed housings 503. The pull rods 504 extend... One end of each mold 402 extending into the fixed housing 503 is fixedly connected to a locking block 506. The bottom of the two locking blocks 506 is slidably connected to the bottom of the inner cavity of the two fixed housings 503 respectively. The insertion rods 501 and the snap-fit ​​blocks 502 on both sides of the upper mold 402 then enter the fixed housing 503. The snap-fit ​​blocks 502 press the locking blocks 506, and under the action of the spring 505, the locking blocks 506 slide along the bottom of the inner cavity of the fixed housing 503 until the snap-fit ​​blocks 502 snap into the inside of the snap-fit ​​groove 507. Then, under the action of the spring 505, the locking blocks 506 move to the top of the snap-fit ​​blocks 502, thereby achieving quick locking and fixing of the mold body 4.

[0031] The cross-sections of the two locking blocks 506 are also trapezoidal. The bottom of the inner cavity of the two fixed housings 503 is provided with a snap-fit ​​groove 507. The two snap-fit ​​grooves 507 are symmetrically arranged. The two snap-fit ​​grooves 507 are respectively located directly below the two plug-in rods 501 and the snap-fit ​​block 502. The two snap-fit ​​blocks 502 are movably connected to the two snap-fit ​​grooves 507 respectively.

[0032] The cooling assembly 6 includes a water tank 601 disposed on one side of the lower mold 401. A water pump 602 is fixedly connected to the front of the water tank 601. A water pump 603 is connected to a flange on the side of the water pump 602 away from the lower mold 401. The other end of the water pump 603 extends into the interior of the water tank 601. A delivery pipe 604 is connected to a flange on the side of the water pump 602 near the lower mold 401. The other end of the delivery pipe 604 extends through the side wall of the lower mold 401 into the interior of the cooling chamber 405. The lower mold 401 is located away from the delivery pipe 605. A return pipe 605 passes through one side of the pipe 604, and the other end of the return pipe 605 is fixedly connected to the back of the water storage tank 601. A cooling plate 606 is connected to one side of the inner cavity of the water storage tank 601, and a heat sink 607 is fixedly connected to one side of the cooling plate 606. The other end of the heat sink 607 extends to the outside of the water storage tank 601. The water pump 602 draws cold water from the water storage tank 601 through the water pumping pipe 603 and delivers it to the cooling cavity 405 of the lower mold 401 through the conveying pipe 604 to cool the mold body 4.

[0033] Among them, the plug rods 501 and the snap-fit ​​blocks 502 on both sides of the upper mold 402 enter the fixed shell 503. The snap-fit ​​blocks 502 squeeze the locking blocks 506. Under the action of the spring 505, the locking blocks 506 slide along the bottom of the inner cavity of the fixed shell 503. After the snap-fit ​​blocks 502 are snapped into the snap-fit ​​groove 507, under the action of the spring 505, the locking blocks 506 move to the top of the snap-fit ​​blocks 502, so as to realize the quick locking and fixing of the mold body 4.

[0034] Furthermore, the water pump 602 draws cold water from the water storage tank 601 through the water pumping pipe 603 and delivers it to the cooling chamber 405 of the lower mold 401 through the delivery pipe 604 to cool the mold body 4, improve cooling efficiency, and ensure the molding quality of the injection molded parts.

[0035] The working process of this utility model is as follows: During use, the hydraulic rod 7 pushes the upper mold 402 downward. During the downward movement, the extension plate 403 and the guide rod 404 guide the upper mold 402, allowing it to accurately move downward and fit against the lower mold 401. Simultaneously, the insertion rods 501 and locking blocks 502 on both sides of the upper mold 402 enter the fixed housing 503. The locking blocks 502 press against the locking blocks 506, and under the action of the spring 505, the locking blocks 506 slide along the bottom of the inner cavity of the fixed housing 503 until the locking blocks 502 are engaged inside the locking groove 507. Then, under the action of the spring 505, the locking blocks 506 move to the top of the locking blocks 502, thus completing the mold... The main body 4 is quickly locked and fixed. At this time, the injection molding process begins. Simultaneously, the water pump 602 draws cold water from the water storage tank 601 through the water pumping pipe 603 and delivers it to the cooling chamber 405 of the lower mold 401 through the delivery pipe 604 to cool the mold body 4. The cooled water flows back to the water storage tank 601 through the return pipe 605 to realize the recycling of water. During this process, the cooling plate 606 cools the water in the water storage tank 601 to ensure cooling efficiency. After the injection molded part is cooled and formed, the pull rod 504 is pulled, and the locking block 506 disengages from the locking state of the snap-fit ​​block 502. At this time, the hydraulic rod 7 rises, causing the upper mold 402 to separate from the lower mold 401, and the injection molded part is taken out, completing one injection molding production process.

[0036] The hydraulic rod 7 and water pump 602 used in this utility model are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the hydraulic rod 7 and water pump 602 will not be described in detail here.

[0037] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0038] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A locking mechanism for an injection mold of an automotive part, comprising a base plate (1), characterized in that: A top plate (2) is provided directly above the bottom plate (1). Support rods (3) are fixedly connected to the four corners of the top of the bottom plate (1). The top ends of the four support rods (3) are fixedly connected to the four corners of the bottom of the top plate (2). A mold body (4) is provided between the bottom plate (1) and the top plate (2). The mold body (4) includes a lower mold (401) located in the middle of the top of the bottom plate (1). An upper mold (402) is provided directly above the lower mold (401). Locking components (5) for locking the mold body (4) are provided on both sides of the lower mold (401) and both sides of the upper mold (402). A cooling component (6) for cooling the lower mold (401) is provided on one side of the lower mold (401). Extension plates (403) are fixedly connected to the top of both sides of the upper mold (402). Guide rods (404) pass through both ends of the two extension plates (403).

2. The locking mechanism of an automotive component injection mold according to claim 1, characterized in that: The bottom ends of the four guide rods (404) are fixedly connected to the top of the base plate (1), the top ends of the four guide rods (404) are fixedly connected to the bottom of the top plate (2), and the outer walls of the four guide rods (404) are slidably connected to the inner walls of the two extension plates (403).

3. The locking mechanism of an automotive component injection mold according to claim 1, characterized in that: A hydraulic rod (7) is fixedly connected to the top of the top plate (2). The bottom end of the hydraulic rod (7) passes through the top plate (2) and is fixedly connected to the top of the upper mold (402). A cooling cavity (405) is opened on the inner wall of the lower mold (401).

4. The locking mechanism of an automotive component injection mold according to claim 1, characterized in that: The locking assembly (5) includes a plug rod (501) fixedly connected to the bottom of the two extension plates (403). The bottom of each of the two plug rods (501) on the side away from each other is fixedly connected to a snap block (502). The cross-section of each of the two snap blocks (502) is trapezoidal. The lower mold (401) is provided with a fixed housing (503) on both sides. The bottom of each of the two fixed housings (503) is fixedly connected to the top of the base plate (1).

5. The locking mechanism of an automotive component injection mold according to claim 4, characterized in that: The two plug rods (501) are respectively inserted into the interior of the two fixed housings (503). A pull rod (504) passes through the two fixed housings (503) on the side away from each other. A spring (505) is sleeved on the end of the two pull rods (504) located outside the fixed housing (503). A locking block (506) is fixedly connected to the end of the two pull rods (504) extending into the interior of the fixed housing (503). The bottom of the two locking blocks (506) is slidably connected to the bottom of the inner cavity of the two fixed housings (503).

6. The locking mechanism of an automotive component injection mold according to claim 5, characterized in that: The cross-sections of the two locking blocks (506) are also trapezoidal. The bottom of the inner cavity of the two fixed housings (503) is provided with a snap-fit ​​groove (507). The two snap-fit ​​grooves (507) are symmetrically arranged. The two snap-fit ​​grooves (507) are respectively located directly below the two plug rods (501) and the snap-fit ​​block (502). The two snap-fit ​​blocks (502) are movably connected to the two snap-fit ​​grooves (507).

7. The locking mechanism of an injection mold for automotive parts according to claim 1, characterized in that: The cooling assembly (6) includes a water tank (601) disposed on one side of the lower mold (401). A water pump (602) is fixedly connected to the front of the water tank (601). A water pump (602) is connected to a water suction pipe (603) via a flange on the side of the water pump (602) away from the lower mold (401). The other end of the water suction pipe (603) extends into the interior of the water tank (601). A delivery pipe (604) is connected to a flange on the side of the water pump (602) closer to the lower mold (401).

8. The locking mechanism of an injection mold for automotive parts according to claim 7, characterized in that: The other end of the delivery pipe (604) extends through the side wall of the lower mold (401) into the interior of the cooling chamber (405). A return pipe (605) passes through the side of the lower mold (401) away from the delivery pipe (604). The other end of the return pipe (605) is fixedly connected to the back of the water storage tank (601). A cooling plate (606) is connected to one side of the inner cavity of the water storage tank (601). A heat sink (607) is fixedly connected to one side of the cooling plate (606). The other end of the heat sink (607) extends to the outside of the water storage tank (601).

Images