Split type injection mold opening device

Abstract

The utility model relates to the technical field of injection molds, in particular to a split type injection mold opening device, which comprises an upper mold and a lower mold, the upper mold is arranged right above the lower mold, the bottom of the lower mold is fixedly connected with a bottom plate, mold opening components are symmetrically arranged on two sides of the top of the bottom plate, a jacking structure is arranged in the lower mold, and the jacking structure is fixedly connected with the bottom plate. The mold opening assembly comprises fixing frames arranged on the two sides of the top of the bottom plate, the two fixing frames are arranged on the two sides of the lower mold correspondingly, driving motors are fixedly connected to the front faces of the two fixing frames correspondingly, and the output ends of the two driving motors extend into the two fixing frames correspondingly and are connected with driving gears. And connecting plates penetrate through the opposite sides of the two fixing frames correspondingly, guide rods penetrate through the interiors of the two connecting plates correspondingly, the top ends of the two guide rods are fixedly connected with the tops of inner cavities of the two fixing frames correspondingly, automatic mold opening can be achieved, and product demolding is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a split injection mold opening device. Background Technology

[0002] Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic into the mold cavity under high pressure using an injection molding machine, and then cooling and solidifying it to obtain the molded product. However, due to the generally large weight of the mold and the tight fit between the upper and lower molds, it is very inconvenient to open the mold, and the product may stick to the inner wall of the mold cavity, making it difficult to remove the product. Utility Model Content

[0003] The purpose of this invention is to provide a split injection mold opening device to solve the problems mentioned in the background art.

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

[0005] The split injection mold opening device includes an upper mold and a lower mold. The upper mold is located directly above the lower mold. A base plate is fixedly connected to the bottom of the lower mold. Opening components are symmetrically arranged on both sides of the top of the base plate. A lifting structure is provided inside the lower mold.

[0006] The mold opening assembly includes two fixed frames disposed on the top sides of the base plate. The two fixed frames are respectively disposed on both sides of the lower mold. A drive motor is fixedly connected to the front of each of the two fixed frames. The output ends of the two drive motors extend into the interior of the two fixed frames and are connected to drive gears. A connecting plate passes through the opposite side of each of the two fixed frames. A guide rod passes through the interior of each of the two connecting plates. The top ends of the two guide rods are fixedly connected to the top of the inner cavity of each of the two fixed frames. The bottom ends of the two guide rods are fixedly connected to the top of the base plate. A rack is provided on the inner side of each of the two fixed frames. Sliding blocks are fixedly connected to the upper and lower ends of the racks on the side away from the drive gears.

[0007] As a preferred embodiment of this utility model, the ends of the two connecting plates that are close to each other are fixedly connected to the outer walls of the two sides of the upper mold, the inner walls of the two connecting plates are fixedly connected to the outer walls of the two guide rods, and the top ends of the two racks are fixedly connected to the bottom of the two connecting plates on the side away from the upper mold.

[0008] As a preferred embodiment of this utility model, the two racks are respectively connected to two drive gears on opposite sides, and the inner walls of the four sliding blocks are respectively connected to the outer walls of the two guide rods.

[0009] As a preferred embodiment of this utility model, the lifting structure includes an installation cavity formed below the inner cavity of the lower mold, a rotary motor is fixedly connected to the front of the lower mold, the output end of the rotary motor extends into the interior of the installation cavity and is fixedly connected to a drive gear, and a top plate penetrates through the bottom of the inner cavity of the lower mold.

[0010] As a preferred embodiment of this utility model, driven half gears are symmetrically arranged on both sides of the drive gear, both driven half gears are meshed with the drive gear, and cams are fixedly connected to the front of both driven half gears. L-shaped connecting plates are symmetrically connected to both sides of the bottom of the top plate.

[0011] As a preferred embodiment of this utility model, a limiting rod passes through the middle of each of the two L-shaped connecting plates, and the upper and lower ends of the two limiting rods are respectively fixedly connected to the upper and lower inner walls of the mounting cavity. A spring is sleeved on the outer wall of each of the two limiting rods.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the connecting plate is moved upward by driving the rack and pinion through the drive gear, which can drive the two upper molds to move upward, and the upper mold and lower mold are separated to realize automatic mold opening.

[0014] 2. In this utility model, the two cams are driven to rotate by the driven half gears on both sides through the active gear, which pushes the top plate to eject the product, making it convenient for the product to be demolded. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the mold opening component of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the lower mold of this utility model.

[0018] In the diagram: 1. Upper mold; 2. Lower mold; 3. Base plate; 4. Mold opening assembly; 5. Lifting structure; 401. Fixing frame; 402. Drive motor; 403. Connecting plate; 404. Drive gear; 405. Guide rod; 406. Rack; 407. Sliding block; 501. Mounting cavity; 502. Rotary motor; 503. Top plate; 504. Drive gear; 505. Driven half gear; 506. Cam; 507. Limiting rod; 508. L-shaped connecting plate; 509. Spring. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0024] The split injection mold opening device includes an upper mold 1 and a lower mold 2. The upper mold 1 is located directly above the lower mold 2. A base plate 3 is fixedly connected to the bottom of the lower mold 2. Opening components 4 are symmetrically arranged on both sides of the top of the base plate 3. A lifting structure 5 is provided inside the lower mold 2. The opening components 4 include two fixing frames 401 arranged on both sides of the top of the base plate 3. The two fixing frames 401 are respectively arranged on both sides of the lower mold 2. A drive motor 402 is fixedly connected to the front of each of the two fixing frames 401. The output ends of the two drive motors 402 extend to the two fixing frames respectively. Inside 401, a drive gear 404 is connected. A connecting plate 403 passes through one side of each of the two fixed frames 401. A guide rod 405 passes through the inside of each of the two connecting plates 403. The top ends of the two guide rods 405 are fixedly connected to the top of the inner cavity of each of the two fixed frames 401, and the bottom ends of the two guide rods 405 are fixedly connected to the top of the base plate 3. A rack 406 is provided on the inner side of each of the two fixed frames 401. Sliding blocks 407 are fixedly connected to the upper and lower ends of the rack 406 on the side away from the drive gear 404.

[0025] The ends of the two connecting plates 403 that are close to each other are fixedly connected to the outer walls of the two sides of the upper mold 1, the inner walls of the two connecting plates 403 are fixedly connected to the outer walls of the two guide rods 405, the tops of the two racks 406 are fixedly connected to the bottom of the two connecting plates 403 on the side away from the upper mold 1, the sides of the two racks 406 that are far from each other are meshed with the two drive gears 404, and the inner walls of the four sliding blocks 407 are slidably connected to the outer walls of the two guide rods 405.

[0026] The lifting structure 5 includes an installation cavity 501 located below the inner cavity of the lower mold 2. A rotary motor 502 is fixedly connected to the front of the lower mold 2. The output end of the rotary motor 502 extends into the interior of the installation cavity 501 and is fixedly connected to a drive gear 504. A top plate 503 passes through the bottom of the inner cavity of the lower mold 2. Driven half gears 505 are symmetrically arranged on both sides of the drive gear 404. Both driven half gears 505 are meshed with the drive gear 504. Cams 506 are fixedly connected to the front of both driven half gears 505. L-shaped connecting plates 508 are symmetrically connected to both sides of the bottom of the top plate 503. Limiting rods 507 pass through the middle of both L-shaped connecting plates 508. The upper and lower ends of the two limiting rods 507 are fixedly connected to the upper and lower inner walls of the installation cavity 501, respectively. Springs 509 are sleeved on the outer walls of both limiting rods 507.

[0027] The working process of this utility model is as follows: After the product is injection molded, the drive motors 402 on both sides drive the drive gears 404 to rotate. The drive gears 404 use the rack 406 to push the two connecting plates 403 to move upward, so that the two top plates 503 drive the upper mold 1 to move upward. The upper mold 1 and the lower mold 2 separate to open the mold. Then, the rotary motor 502 uses the drive gear 504 to drive the driven half gears 505 on both sides to drive the cams 506 to rotate. The two cams 506 push the top plates 503 upward to lift the product, which facilitates demolding of the product.

[0028] 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. Split injection mould opening device, comprising an upper mould (1) and a lower mould (2), characterised in that: The upper mold (1) is located directly above the lower mold (2). The bottom of the lower mold (2) is fixedly connected to a base plate (3). Opening components (4) are symmetrically arranged on both sides of the top of the base plate (3). A lifting structure (5) is provided inside the lower mold (2). The mold opening assembly (4) includes two fixed frames (401) on the top two sides of the base plate (3). The two fixed frames (401) are respectively located on both sides of the lower mold (2). The front of each of the two fixed frames (401) is fixedly connected to a drive motor (402). The output ends of the two drive motors (402) extend into the interior of the two fixed frames (401) and are connected to drive gears (404). A connecting plate (403) passes through the opposite side of each of the two fixed frames (401). A guide rod (405) passes through the interior of each of the two connecting plates (403). The top ends of the two guide rods (405) are fixedly connected to the top of the inner cavity of each of the two fixed frames (401). The bottom ends of the two guide rods (405) are fixedly connected to the top of the base plate (3). A rack (406) is provided on the inner side of each of the two fixed frames (401). Sliding blocks (407) are fixedly connected to the upper and lower ends of the rack (406) on the side away from the drive gear (404).

2. The split injection mold opening apparatus of claim 1, wherein: The two connecting plates (403) are fixedly connected to the outer walls of the upper mold (1) at their respective ends, and the inner walls of the two connecting plates (403) are fixedly connected to the outer walls of the two guide rods (405). The top ends of the two racks (406) are fixedly connected to the bottom of the two connecting plates (403) on the side away from the upper mold (1).

3. The split injection mold opening apparatus of claim 1, wherein: The two racks (406) are respectively connected to the two drive gears (404) on their opposite sides, and the inner walls of the four sliding blocks (407) are respectively connected to the outer walls of the two guide rods (405).

4. The split injection mold opening apparatus of claim 1, wherein: The lifting structure (5) includes an installation cavity (501) located below the inner cavity of the lower mold (2). A rotary motor (502) is fixedly connected to the front of the lower mold (2). The output end of the rotary motor (502) extends into the interior of the installation cavity (501) and is fixedly connected to a drive gear (504). A top plate (503) passes through the bottom of the inner cavity of the lower mold (2).

5. The split injection mold opening apparatus of claim 4, wherein: The drive gear (404) is symmetrically provided with driven half gears (505) on both sides. Both driven half gears (505) are meshed with the drive gear (504). Cams (506) are fixedly connected to the front of both driven half gears (505). L-shaped connecting plates (508) are symmetrically connected to both sides of the bottom of the top plate (503).

6. The split injection mold opening device according to claim 5, characterized in that: Both L-shaped connecting plates (508) have a limiting rod (507) passing through their middle parts. The upper and lower ends of the two limiting rods (507) are fixedly connected to the upper and lower inner walls of the mounting cavity (501), respectively. The outer walls of the two limiting rods (507) are fitted with springs (509).

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