Injection mold convenient to disassemble and assemble

Abstract

The utility model discloses an injection mold convenient to disassemble and assemble, which belongs to the technical field of injection molds and comprises a base, a mounting groove is formed in the base, a lower mold is matched in the mounting groove, arc-shaped clamping grooves are formed in two sides of the lower mold, a rectangular groove is formed in the mounting groove, and a bidirectional screw is rotatably mounted in the rectangular groove. Two driving blocks are in threaded fit with the outer surface of the two-way screw, a fixing assembly is arranged on the driving blocks and comprises a U-shaped plate, an arc-shaped clamping block is arranged in the center of the top of the U-shaped plate and matched with the arc-shaped clamping groove, two elastic pieces are arranged on the U-shaped plate, and the two ends of the U-shaped plate are matched with the inner walls of the two sides of the mounting groove. Through the structural design of the two-way screw rod and the fixing assembly, the lower die can be conveniently and rapidly assembled and disassembled, and the problem that the lower die is troublesome to assemble and disassemble is solved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold that is easy to assemble and disassemble. Background Technology

[0002] Injection molds are precision molding tools that inject molten plastic into a cavity and obtain a product of a specific shape after cooling. Their core capabilities lie in precision replication, efficient mass production, and complex shaping. Structurally, injection molds consist of upper and lower molds, a gating system, guiding components, a demolding mechanism, a core-pulling mechanism, a mold temperature control system, a venting system, and other structural parts.

[0003] However, the lower mold of existing injection molds is usually fixed to the base with multiple bolts. After long-term use, when the lower mold needs to be maintained or replaced, the installation and disassembly of the lower mold is relatively troublesome, the disassembly and assembly process is slow, the operation is inconvenient, time-consuming and labor-intensive, and it is easy to affect the disassembly and assembly efficiency of the mold. Utility Model Content

[0004] The purpose of this utility model is to provide an injection mold that is easy to assemble and disassemble. Through the structural design of the bidirectional screw and fixing components, the lower mold can be easily installed and disassembled, solving the problem that the installation and disassembly of the lower mold is relatively troublesome.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to an injection mold that is easy to assemble and disassemble. It includes a base with an installation groove on the base. A lower mold is fitted in the installation groove. Arc-shaped slots are provided on both sides of the lower mold. A rectangular groove is provided in the installation groove. A bidirectional screw is rotatably installed in the rectangular groove. Two drive blocks are threaded on the outer surface of the bidirectional screw. A fixing component is provided on the drive block. The fixing component includes a U-shaped plate. An arc-shaped block is provided at the top center of the U-shaped plate. The arc-shaped block cooperates with the arc-shaped slot. Two elastic elements are provided on the U-shaped plate. The two ends of the U-shaped plate cooperate with the inner walls of the two sides of the installation groove.

[0007] Furthermore, two circular grooves are formed inside the rectangular groove, and bearings are fitted inside the circular grooves. The inner rings of the two bearings are respectively fitted to the outer surfaces of both ends of the bidirectional screw.

[0008] Furthermore, one end of the bidirectional screw passes through the circular groove to the outside of the base, and a motor is installed on the base, with the output end of the motor connected to one end of the bidirectional screw.

[0009] Furthermore, limit blocks are provided at both ends of the U-shaped plate, and two pairs of limit grooves are provided in the mounting groove, with the mounting groove cooperating with the limit grooves.

[0010] Furthermore, the elastic element includes a movable rod and a fixed ring. One side of the fixed ring is connected to one end surface of the U-shaped plate. The outer surface of one end of the movable rod is engaged with the inner ring of the fixed ring. A spring is engaged on the outer surface of the movable rod. A right-angle retaining plate is provided at the end of the movable rod away from the fixed ring. The spring is located between the fixed ring and the right-angle retaining plate. The right-angle retaining plate is in contact with the surface of the lower mold.

[0011] Furthermore, the bottom of the lower mold has two positioning holes, and two positioning pins are provided in the mounting groove. The positioning pins cooperate with the positioning holes. The upper mold is fitted on the lower mold, and the upper mold is provided with a liquid injection port.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model, through the structural design of a bidirectional screw and fixing components, uses the output end of a motor to drive the bidirectional screw to rotate within a rectangular groove. This causes two arc-shaped locking blocks on the two fixing components to engage with corresponding arc-shaped locking slots on the lower mold, thus fixing and restricting the lower mold within the mounting groove between the two arc-shaped locking blocks. This achieves the installation and fixation of the lower mold, enabling convenient installation and disassembly of the lower mold, effectively improving the speed of lower mold assembly and disassembly, shortening operation time, simplifying operation steps, and greatly improving the efficiency of lower mold assembly and disassembly.

[0014] 2. This utility model, through the structural design of elastic elements, uses the rebound force generated by the contraction of four springs to make the four right-angle clamping plates fit tightly with the four corners of the lower mold, thereby achieving axial limiting and fixing of the lower mold. This allows for convenient and fixed limiting of the four corners of the lower mold, effectively improving the overall stability of the lower mold and ensuring its reliability during the injection molding process.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of an injection mold.

[0017] Figure 2 This is a schematic diagram of the injection mold structure.

[0018] Figure 3 This is a schematic diagram of the base and the bidirectional screw.

[0019] Figure 4 This is a schematic diagram of the base structure.

[0020] Figure 5 This is a structural diagram of a fixed component.

[0021] Figure 6 This is a schematic diagram of the installation structure of the elastic element.

[0022] In the diagram: 1. Base; 101. Mounting slot; 102. Rectangular slot; 103. Limiting slot; 104. Positioning post; 2. Lower mold; 201. Arc-shaped slot; 202. Positioning hole; 3. Bidirectional screw; 301. Drive block; 4. Fixing component; 401. U-shaped plate; 4011. Limiting block; 402. Arc-shaped locking block; 403. Elastic element; 4031. Movable rod; 4032. Fixing ring; 4033. Spring; 4034. Right-angle locking plate; 5. Motor; 6. Upper mold. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: an injection mold that is easy to assemble and disassemble, including a base 1, an installation groove 101 on the base 1, a lower mold 2 fitted in the installation groove 101, arc-shaped slots 201 on both sides of the lower mold 2, a rectangular groove 102 in the installation groove 101, two positioning holes 202 at the bottom of the lower mold 2, two positioning posts 104 in the installation groove 101, the positioning posts 104 cooperating with the positioning holes 202 to facilitate the positioning and installation of the lower mold 2, an upper mold 6 fitted on the lower mold 2, the upper mold 6 having an injection port for easy injection molding, and a hydraulic lifting mechanism connected to the top of the upper mold 6 for easy injection molding operations.

[0025] A bidirectional screw 3 is rotatably mounted within a rectangular slot 102. Two circular slots are formed within the rectangular slot 102, each housing a bearing. The inner rings of the two bearings mate with the outer surfaces of both ends of the bidirectional screw 3, enabling rotation of the bidirectional screw 3 within the rectangular slot 102. One end of the bidirectional screw 3 passes through a circular slot to the outside of a base 1. A motor 5 is mounted on the base 1, and its output is connected to one end of the bidirectional screw 3, providing power for its rotation within the rectangular slot 102. Two drive blocks 301 are threaded into the outer surface of the bidirectional screw 3, and each drive block 301 has a fixing assembly. Component 4, the fixing assembly 4 includes a U-shaped plate 401, an arc-shaped locking block 402 is provided at the top center of the U-shaped plate 401, the arc-shaped locking block 402 cooperates with the arc-shaped locking groove 201, two elastic members 403 are provided on the U-shaped plate 401, the two ends of the U-shaped plate 401 cooperate with the inner walls of the two sides of the mounting groove 101, and limit blocks 4011 are provided at both ends of the U-shaped plate 401. Two pairs of limit grooves 103 are provided in the mounting groove 101. The mounting groove 101 cooperates with the limit grooves 103 to facilitate the limiting of the U-shaped plate 401 and ensure the stability of the two U-shaped plates 401 moving towards each other in the mounting groove 101.

[0026] When installing the lower mold 2, place the lower mold 2 above the mounting groove 101, then align the two positioning holes 202 at the bottom of the lower mold 2 with the two positioning posts 104 in the mounting groove 101. The positioning posts 104 cooperate with the positioning holes 202 to stably place the lower mold 2 into the center position in the mounting groove 101. Then start the motor 5, and drive the bidirectional screw 3 to rotate in the rectangular groove 102 through the output end of the motor 5. This causes the two driving blocks 301 on the outer surface of the bidirectional screw 3 to slide towards each other in the rectangular groove 102, so that the two fixing components 4 move closer to each other in the mounting groove 101. The two arc-shaped locking blocks 402 on the two fixing components 4 cooperate with the corresponding two arc-shaped locking slots 201 on the lower mold 2, so that the lower mold 2 is fixed and restricted between the two arc-shaped locking blocks 402 in the mounting groove 101, thereby realizing the installation and fixation of the lower mold 2. Similarly, when it is necessary to disassemble the lower mold 2, repeat the above operation in reverse order to achieve quick disassembly of the lower mold 2.

[0027] The elastic element 403 includes a movable rod 4031 and a fixed ring 4032. One side of the fixed ring 4032 is connected to one end surface of the U-shaped plate 401. The outer surface of one end of the movable rod 4031 is engaged with the inner ring of the fixed ring 4032. A limit piece is provided at one end of the movable rod 4031 to limit the movable rod 4031 and prevent it from sliding out of the fixed ring 4032. A spring 4033 is engaged on the outer surface of the movable rod 4031. A right-angle retaining plate 4034 is provided at the end of the movable rod 4031 away from the fixed ring 4032. The spring 4033 is located between the fixed ring 4032 and the right-angle retaining plate 4034. The right-angle retaining plate 4034 is in contact with the surface of the lower mold 2.

[0028] During the process of fixing the lower mold 2 in the mounting groove 101 by the two fixing components 4 approaching each other, as the two U-shaped plates 401 move towards each other, the four elastic elements 403 on the two U-shaped plates 401 gradually approach the four corners of the lower mold 2. When the four right-angle clamping plates 4034 come into contact with the four corner surfaces of the lower mold 2 and are pressed, the reaction force generated causes the right-angle clamping plates 4034 to push the movable rod 4031 to slide in the fixing ring 4032 and compress the spring 4033. The spring 4033 is compressed and then contracts until the arc-shaped clamping block 402 is completely inserted into the arc-shaped clamping groove 201 on the lower mold 2. At this time, the rebound force generated by the contraction of the four springs 4033 makes the four right-angle clamping plates 4034 fit tightly with the four corners of the lower mold 2, thereby achieving axial limiting and fixing of the lower mold 2.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An injection mold easy to disassemble comprising a base (1), characterized in that: The base (1) has an installation groove (101) and a lower mold (2) is fitted inside the installation groove (101). The lower mold (2) has arc-shaped slots (201) on both sides and a rectangular slot (102) inside the installation groove (101). A bidirectional screw (3) is rotatably installed in the rectangular groove (102). Two drive blocks (301) are threadedly fitted on the outer surface of the bidirectional screw (3). A fixing component (4) is provided on the drive block (301). The fixing component (4) includes a U-shaped plate (401). An arc-shaped locking block (402) is provided at the top center of the U-shaped plate (401). The arc-shaped locking block (402) cooperates with the arc-shaped slot (201). Two elastic elements (403) are provided on the U-shaped plate (401). The two ends of the U-shaped plate (401) cooperate with the inner walls of the two sides of the mounting groove (101).

2. The injection mold of claim 1, wherein Two circular grooves are formed in the rectangular groove (102), and bearings are fitted in the circular grooves. The inner rings of the two bearings are respectively fitted with the outer surfaces of the two ends of the bidirectional screw (3).

3. The injection mold of claim 2, wherein One end of the bidirectional screw (3) passes through the circular groove to the outside of the base (1). A motor (5) is provided on the base (1), and the output end of the motor (5) is connected to one end of the bidirectional screw (3).

4. The injection mold of claim 3, wherein Both ends of the U-shaped plate (401) are provided with limit blocks (4011), and two pairs of limit grooves (103) are provided in the mounting groove (101), and the mounting groove (101) cooperates with the limit grooves (103).

5. The injection mold according to any one of claims 1 to 4, wherein The elastic element (403) includes a movable rod (4031) and a fixed ring (4032). One side of the fixed ring (4032) is connected to one end surface of the U-shaped plate (401). The outer surface of one end of the movable rod (4031) is engaged with the inner ring of the fixed ring (4032). A spring (4033) is engaged on the outer surface of the movable rod (4031). A right-angle clamping plate (4034) is provided at the end of the movable rod (4031) away from the fixed ring (4032). The spring (4033) is located between the fixed ring (4032) and the right-angle clamping plate (4034). The right-angle clamping plate (4034) is in contact with the surface of the lower mold (2).

6. The injection mold of claim 1, wherein The bottom of the lower mold (2) has two positioning holes (202), and the mounting groove (101) is provided with two positioning pins (104). The positioning pins (104) cooperate with the positioning holes (202). The lower mold (2) is fitted with an upper mold (6), and the upper mold (6) is provided with a liquid injection port.

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