A pre-deformed structural mold

Abstract

This utility model discloses a pre-deformation structure mold, including a male mold core. A forming groove is provided in the middle of the upper end of the male mold core. Inserts are evenly distributed and connected to the front and rear sides of the bottom wall of the forming groove via screws. Ejector pins are slidably connected to sliding holes on the left and right sides of the bottom wall of the forming groove. The mold also includes a fixing mechanism. The fixing mechanism includes a top plate and a linkage assembly. The top plate is slidably connected to the sliding grooves in the middle of the left and right ends of the male mold core. The linkage assembly is located inside the male mold core and is used for the linkage of the top plate. The fixing mechanism also includes a mounting cover, a guide slide, and a push plate. The mounting cover is located on the left and right sides inside the male mold core. This utility model replaces the traditional method of fixing the male mold core by bolt connection, optimizes the fixing method, solves the problem of the stability of the male mold core affected by loose screws, and ensures the molding accuracy and quality of the injection molded parts.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, specifically to a pre-deformed structural mold. Background Technology

[0002] Pre-deformed molds are molds designed and manufactured with a certain amount of deformation in advance to compensate for the elastic rebound or plastic deformation of materials during the molding process. These molds are widely used in metal stamping, plastic injection molding, rubber molding and other fields to ensure the dimensional accuracy and shape stability of the final product.

[0003] In the prior art, the patent with authorization publication number CN 216708195 U discloses a quick-assembly and disassembly mold. Although the mold core can be fixed by bolt connection, the mold core will be affected by high temperature, high pressure and mechanical vibration during the molding process. Over time, this will cause the bolts to loosen. Loose bolts will cause the mold core to be unstable during the molding process, affecting the molding accuracy and product quality. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a pre-deformable mold structure. Through the coordinated arrangement of push rods and trapezoidal blocks, the top plate can be moved, thereby connecting the inner support of the male mold core to the interior of the external mounting frame. This replaces the traditional method of fixing the male mold core by bolt connection, solving the problem of the stability of the male mold core affected by loose screws, ensuring the molding accuracy and quality of the injection molded parts, and effectively solving the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pre-deformed structure mold, including a male mold core, a forming groove provided in the middle of the upper end of the male mold core, and evenly distributed inserts connected to the front and rear sides of the bottom wall of the forming groove by screws, and ejector pins slidably connected in the sliding holes opened on the left and right sides of the bottom wall of the forming groove, and also including a fixing mechanism. The fixing mechanism includes a top plate and a linkage component. The top plate is slidably connected to the grooves opened in the middle of the left and right ends of the male mold core. The linkage component is set inside the male mold core and is used for linkage of the top plate. Through the cooperation of the push rod and the trapezoidal block, the top plate can be driven to move, thereby connecting the internal support of the male mold core with the internal installation frame of the outside.

[0006] Furthermore, the fixing mechanism also includes a mounting cover, guide slides, and a push plate. The mounting cover is respectively disposed on the left and right sides inside the male mold core. Guide slides are respectively disposed on the upper side inside the mounting cover. The ends of the four guide slides away from the center of the male mold core are fixedly connected to the inner wall of the male mold core. Two longitudinally adjacent guide slides are slidably connected to guide slide holes corresponding to the right end of a push plate. The ends of two longitudinally adjacent top plates near the center of the male mold core are fixedly connected to the ends of a push plate away from the center of the male mold core. The push plate is installed in conjunction with the linkage component and can drive the top plate to move.

[0007] Furthermore, the fixing mechanism also includes rubber pads, which are respectively disposed at the end of the top plate away from the center of the male mold core. The rubber pads can prevent the top plate from damaging the external frame.

[0008] Furthermore, the linkage component includes trapezoidal blocks, push rods, and mounting plates. The trapezoidal blocks are respectively disposed in the middle of one end of the push plate near the center of the male mold core. The push rods are slidably connected to the clearance holes provided in the middle of the front wall of the mounting cover. The rear ends of the push rods are in contact with the inclined surfaces provided on the left ends of the laterally adjacent trapezoidal blocks. The front ends of the two push rods are fixedly connected to the right end of a mounting plate, which can drive the push plate to move.

[0009] Furthermore, a spring is provided between the end of the push plate away from the center of the male mold core and the inner wall of the male mold core. The spring is movably connected to the longitudinally corresponding guide slide column. The tension generated by the spring contraction can drive the top plate to move and reset through the push plate.

[0010] Furthermore, a fixing plate is provided on the front side of the top wall of the male mold core. A screw is rotatably connected between the front end of the fixing plate and the front wall of the male mold core. The mounting plate is threaded to the middle of the outer arc surface of the screw through a threaded hole provided in the middle of its front end. An adjusting wheel is provided at the front end of the screw, which can drive the mounting plate to move.

[0011] Furthermore, corrugated pipes are respectively provided at the front and rear ends of the mounting plate. The front end of the corrugated pipe on the front side is fixedly connected to the front wall of the male mold core, and the rear end of the corrugated pipe on the rear side is fixedly connected to the front end of the fixing plate. The corrugated pipes are respectively sleeved on the outside of the front and rear sides of the screw. The corrugated pipes can prevent the screw from direct contact with the external environment and prevent dust and other debris in the external environment from damaging the screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By using the push rod and trapezoidal block in combination, the top plate can be moved, thereby connecting the inner support of the male mold core to the interior of the external mounting frame. This replaces the traditional method of fixing the male mold core by bolts, solving the problem of the stability of the male mold core affected by loose screws, and ensuring the molding accuracy and quality of the injection molded parts. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the upper sectional structure of this utility model; Figure 3 This is a schematic diagram of the fixing mechanism of this utility model; Figure 4 This is a schematic diagram of the internal structure of the corrugated pipe of this utility model.

[0014] In the diagram: 1. Male mold core, 2. Molding groove, 3. Insert, 4. Ejector pin, 5. Fixing mechanism, 51. Top plate, 52. Mounting cover, 53. Guide slide, 54. Push plate, 55. Rubber pad, 56. Linkage assembly, 561. Trapezoidal block, 562. Push rod, 563. Mounting plate, 6. Spring, 7. Fixing plate, 8. Screw, 9. Adjusting wheel, 10. Corrugated pipe. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This embodiment provides a technical solution: a pre-deformed structure mold, including a male mold core 1, a forming groove 2 is provided in the middle of the upper end of the male mold core 1, and evenly distributed inserts 3 are connected to the front and rear sides of the bottom wall of the forming groove 2 by screws, and ejector pins 4 are slidably connected in the sliding holes opened on the left and right sides of the bottom wall of the forming groove 2.

[0017] The system also includes a fixing mechanism 5; the fixing mechanism 5 includes a top plate 51 and a linkage component 56. The top plate 51 is slidably connected to the grooves opened in the middle of the left and right ends of the male mold core 1. The linkage component 56 is disposed inside the male mold core 1 and is used for linkage of the top plate 51. The fixing mechanism 5 also includes a mounting cover 52, guide slides 53, and a push plate 54. The mounting cover 52 is disposed on the left and right sides inside the male mold core 1. Guide slides 53 are respectively disposed on the upper side inside the mounting cover 52. The four guide slides 53 are far away from the top plate 54. One end of the inner center of the male mold core 1 is fixedly connected to the inner wall of the male mold core 1. Two longitudinally adjacent guide slides 53 are slidably connected to the guide slide holes corresponding to the right end of a push plate 54. The ends of two longitudinally adjacent top plates 51 near the inner center of the male mold core 1 are fixedly connected to the ends of a push plate 54 away from the inner center of the male mold core 1. The push plate 54 is installed in conjunction with the linkage component 56. The fixing mechanism 5 also includes rubber pads 55, which are respectively set at the ends of the top plates 51 away from the inner center of the male mold core 1.

[0018] The linkage component 56 includes a trapezoidal block 561, a push rod 562, and a mounting plate 563. The trapezoidal block 561 is respectively located at the middle of one end of the push plate 54 near the center of the male mold core 1. The push rods 562 are slidably connected to the clearance holes provided in the middle of the front wall of the mounting cover 52. The rear ends of the push rods 562 are in contact with the inclined surfaces provided on the left ends of the laterally adjacent trapezoidal blocks 561. The front ends of the two push rods 562 are fixedly connected to the right end of a mounting plate 563.

[0019] Among them, springs 6 are respectively provided between the end of the push plate 54 away from the inner center of the male mold core 1 and the inner wall of the male mold core 1. The springs 6 are respectively movably connected to the longitudinally corresponding guide slides 53. The tension generated by the spring contraction can drive the top plate 51 to move and reset through the push plate 54.

[0020] The male mold core 1 has a fixing plate 7 on the front side of its top wall. The front end of the fixing plate 7 is rotatably connected to the front wall of the male mold core 1 with a screw 8. The mounting plate 563 is threaded to the middle of the outer arc surface of the screw 8 through a threaded hole in the middle of its front end. The front end of the screw 8 is provided with an adjusting wheel 9. When the operator rotates the adjusting wheel 9, the adjusting wheel 9 will drive the screw 8 to rotate. During the rotation of the screw 8, the mounting plate 563 will move backward through the threaded connection.

[0021] The mounting plate 563 has corrugated pipes 10 at both ends. The front end of the front corrugated pipe 10 is fixedly connected to the front wall of the male mold core 1, and the rear end of the rear corrugated pipe 10 is fixedly connected to the front end of the fixing plate 7. The corrugated pipes 10 are respectively sleeved on the front and rear sides of the screw 8. During the rotation of the screw 8, the mounting plate 563 will move backward through the threaded connection. At this time, the front corrugated pipe 10 extends and the rear corrugated pipe 10 contracts. The corrugated pipes 10 can prevent the screw 8 from direct contact with the external environment and prevent dust and other debris in the external environment from damaging the screw 8.

[0022] The working principle of this utility model is as follows: Before use, install the insert 3 according to the shape of the injection molded part. The insert 3 is used to form the complex shape or local features of the injection molded part, such as threads, holes, grooves, etc. During the installation of the insert 3, after cleaning the surface of the insert 3, use screws to fix the insert into the inside of the molding groove 2. Then, put the male mold core 1 into the inside of the external mounting frame. Then, the operator rotates the adjusting wheel 9. During the rotation of the adjusting wheel 9, the screw 8 will rotate. During the rotation of the screw 8, the mounting plate 563 will move backward through the threaded connection. At this time, the bellows 10 on the front side extends and the bellows 10 on the rear side contracts. The bellows 10 can prevent the screw 8 from direct contact with the external environment and prevent dust and other debris in the external environment from damaging the screw 8. During the movement of the mounting plate 563, the mounting plate 563 will drive the push rod 562 to move backward. When the rear end of the push rod 562 contacts the front end of the trapezoidal block 561, the trapezoidal block 561 will be pushed by the push rod 562 to move. The trapezoidal block 561 will drive the top plate 51 to move through the push plate 54. The spring 7 will contract, so that the top plate 51 will extend out of the inside of the male mold core 1. Finally, the top plate 51 will contact the inner wall of the mounting frame through the rubber pad 55, thereby supporting the male mold core 1 internally with the inside of the external mounting frame. During the use of the pre-deformed mold, the external hydraulic rod drives the male mold core 1 to move through the external mounting frame, so that the lower end of the male mold core 1 contacts the upper end of the external female mold core. Then, the external injection molding equipment injects the molten material into the interior of the female mold core through the nozzle. The molten material fills the molding groove 2 and the cavity of the female mold core under high pressure, thereby forming the required shape. Then, the material solidifies inside the molding groove 2 and the female mold core, finally forming a solid product. During the curing and molding process of injection molded parts, the material may undergo plastic deformation. Under the action of the male mold core 1 and the insert 3, the material can undergo deformation in the opposite direction to plastic deformation during the molding process, so as to achieve the design dimensions after molding. After the injection molded part is formed, the external hydraulic rod drives the male mold core 1 to move through the external mounting frame, so that it separates from the female mold core. At the same time, the external electric push rod gives the injection molded part a push force through the ejector pin 4. The ejector pin 4 pushes the molded product out of the male mold core 1, ensuring that the product can be demolded smoothly.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pre-deformable structure mold, comprising a male mold core (1), a forming groove (2) provided in the middle of the upper end of the male mold core (1), and inserts (3) evenly distributed on the front and rear sides of the bottom wall of the forming groove (2) respectively connected by screws, and ejector pins (4) slidably connected in the sliding holes opened on the left and right sides of the bottom wall of the forming groove (2), characterized in that: It also includes fixed mechanisms (5); The fixing mechanism (5) includes a top plate (51) and a linkage component (56). The top plate (51) is slidably connected to the grooves opened in the middle of the left and right ends of the male mold core (1). The linkage component (56) is set inside the male mold core (1) and is used for the linkage of the top plate (51).

2. A pre-deformation structural mold according to claim 1, characterized in that: The fixing mechanism (5) also includes a mounting cover (52), guide slides (53) and a push plate (54). The mounting cover (52) is respectively set on the left and right sides inside the male mold core (1). The upper side inside the mounting cover (52) is respectively provided with guide slides (53). The ends of the four guide slides (53) away from the center of the male mold core (1) are fixedly connected to the inner wall of the male mold core (1). The two longitudinally adjacent guide slides (53) are respectively slidably connected to the guide slide holes corresponding to the right end of a push plate (54). The ends of the two longitudinally adjacent top plates (51) near the center of the male mold core (1) are respectively fixedly connected to the ends of the push plate (54) away from the center of the male mold core (1). The push plate (54) is installed in conjunction with the linkage component (56).

3. A pre-deformation structural mold according to claim 1, characterized in that: The fixing mechanism (5) also includes rubber pads (55), which are respectively disposed at one end of the top plate (51) away from the center of the male mold core (1).

4. A pre-deformation structural mold according to claim 2, characterized in that: The linkage component (56) includes a trapezoidal block (561), a push rod (562), and a mounting plate (563). The trapezoidal block (561) is respectively located at the middle of one end of the push plate (54) near the center of the male mold core (1). The push rod (562) is slidably connected to the clearance hole provided in the middle of the front wall of the mounting cover (52). The rear end of the push rod (562) is in contact with the inclined surface provided on the left end of the horizontally adjacent trapezoidal block (561). The front ends of the two push rods (562) are fixedly connected to the right end of a mounting plate (563).

5. A predeformation tool according to claim 2, characterized in that: Springs (6) are respectively provided between the end of the push plate (54) away from the center of the male mold core (1) and the inner wall of the male mold core (1). The springs (6) are respectively movably connected to the longitudinally corresponding guide slides (53).

6. A pre-deformation structural mold according to claim 4, characterized in that: A fixing plate (7) is provided on the front side of the top wall of the male mold core (1). A screw (8) is rotatably connected between the front end of the fixing plate (7) and the front wall of the male mold core (1). The mounting plate (563) is threadedly connected to the middle of the outer arc surface of the screw (8) through the threaded hole provided in the middle of its front end. An adjusting wheel (9) is provided at the front end of the screw (8).

7. A pre-deformation structural mold according to claim 6, characterized in that: The mounting plate (563) is provided with corrugated pipes (10) at its front and rear ends respectively. The front end of the corrugated pipe (10) is fixedly connected to the front wall of the male mold core (1), and the rear end of the corrugated pipe (10) is fixedly connected to the front end of the fixing plate (7). The corrugated pipes (10) are respectively sleeved on the outside of the front and rear sides of the screw (8).

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