Arc core-pulling mold of sliding block

Abstract

The utility model discloses a sliding block arc core-pulling mold. The sliding block arc core-pulling mold comprises a movable mold plate, a movable mold base plate, a movable mold bottom plate, a top plate, a top plate spring, a spring guide rod and a core-pulling assembly, the movable mold plate and the movable mold base plate are connected together in an abutting mode, the spring guide rod is arranged between the top plate and the movable mold plate, the top plate spring is connected to the spring guide rod in a sleeved mode, the lower end of the top plate spring abuts against the top plate, the upper end of the top plate spring penetrates through the movable mold base plate and then abuts against the movable mold plate, and the core pulling assembly is installed in the movable mold plate. During mold opening, a movable mold plate is firstly separated from a movable mold base plate under the driving of a top plate spring, a side guide block and a middle guide block in a core pulling assembly move upwards along with the movable mold plate, a cross rod is limited by a cross rod side pulling plate and a cross rod middle pulling plate and cannot move upwards, and the cross rod moves in an arc mode along arc-shaped guide grooves of the side guide block and the middle guide block; the arc-shaped core pulling device for the plastic product has the advantages of being simple in structure and reliable in action.

Description

Technical Field

[0001] This utility model relates to an injection mold, and more particularly to a slider arc core-pulling mold. Background Technology

[0002] Plastic injection molds are tools used to produce plastic products and have a wide range of applications. For example... Figure 1 As shown, the plastic product 100 has an arc-shaped bend 101. Traditional core-pulling methods mostly use racks, gears and cylinders for core pulling, which is a relatively complex structure. Utility Model Content

[0003] The purpose of this utility model is to provide a slider arc core-pulling mold with a simple structure and reliable operation.

[0004] To achieve the above objectives, the technical solution of this utility model is:

[0005] This utility model is a slider arc core-pulling mold, including a moving template, a moving mold pad, a moving mold base plate, a top plate, a top plate spring, a spring guide rod, and a core-pulling assembly;

[0006] The moving template is in contact with the moving template pad. The spring guide rod is located between the top plate and the moving template. The top plate spring is sleeved on the spring guide rod and the lower end of the top plate spring abuts against the top plate. The upper end of the top plate spring passes through the moving template pad and abuts against the moving template. The core-pulling assembly is installed inside the moving template.

[0007] The core-pulling assembly includes two side guide blocks, a middle guide block, two crossbar side pull plates, a crossbar middle pull plate, two crossbars, two swing blocks, two bent cores, and two swing block push rods. The two side guide blocks and the middle guide block are both fixed inside the moving mold plate. Arc-shaped guide grooves are provided on both the side guide blocks and the middle guide block. The lower ends of the two crossbar side pull plates are respectively fixed to the moving mold plate and are positioned opposite each other. The lower end of the crossbar middle pull plate is fixed to the moving mold plate and is located between the two crossbar side pull plates. The upper ends of the pull plate and the middle pull plate of the crossbar extend into the moving mold plate, respectively. The two ends of the crossbar are respectively hooked into the horizontal grooves at the top of the side pull plate and the middle pull plate of the crossbar, and the middle part of the crossbar moves through the arc-shaped guide grooves of the side guide block and the middle guide block. The arc-shaped guide grooves can guide the crossbar to move along the arc. The lower end of the swing block is fixedly sleeved in the middle of the crossbar. The lower end of the bent core is fixed on the swing block. The upper end of the bent core extends into the cavity. The lower end of the swing block push rod is fixed on the moving mold plate, and the upper end of the swing block push rod abuts against the swing block.

[0008] The central guide block has a rectangular through groove in the middle, and is a rectangular piece with four side walls. Arc-shaped guide grooves are respectively opened on two symmetrical side walls; the upper end of the crossbar pull plate is movably fitted into the rectangular through groove of the central guide block.

[0009] This utility model also includes a panel, a fixed template, multiple sets of rectangular guide pillars, and multiple sets of small sliders; the panel is in contact with the fixed template, the fixed template is in contact with the moving template, the upper end of the rectangular guide pillar is fixed on the panel, the lower part of the rectangular guide pillar passes through the fixed template and enters the guide groove of the small slider, the small slider slides in the fixed template, and the inner end of the small slider extends into the cavity.

[0010] After adopting the above solution, since the core-pulling assembly of this utility model includes two side guide blocks, a middle guide block, two crossbar side pull plates, a crossbar middle pull plate, two crossbars, two swing blocks, two bent cores, and two swing block push rods, when the mold is opened, the moving mold plate first separates from the moving mold pad under the drive of the top plate spring. The side guide blocks and the middle guide blocks in the core-pulling assembly move upward with the moving mold plate. The crossbars are restricted by the crossbar side pull plates and the crossbar middle pull plates and will not move upward. The crossbars move in an arc along the arc-shaped guide grooves of the side guide blocks and the middle guide blocks, and pull the bent core out of the arc-shaped bent hole of the plastic product to achieve arc-shaped core pulling. It has the advantages of simple structure and reliable operation.

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0012] Figure 1 It is an isometric drawing of a plastic product;

[0013] Figure 2 This is a front view of the present invention;

[0014] Figure 3 This is an isometric view of the panel and the fixed template of this utility model;

[0015] Figure 4 This is an isometric drawing of the core-pulling assembly of this utility model;

[0016] Figure 5 This is a three-dimensional exploded view of the core-pulling component of this utility model;

[0017] Figure 6 This is a schematic diagram of the mold closing mechanism of the fixed mold of this utility model;

[0018] Figure 7 This is a schematic diagram of the mold opening for the fixed mold of this utility model;

[0019] Figure 8 This is a schematic diagram of the mold opening for the core pulling mechanism of this utility model;

[0020] Figure 9 This is a schematic diagram of the mold closing process for core pulling in this utility model. Detailed Implementation

[0021] like Figure 2 , Figure 3As shown, this utility model is a slider arc core-pulling mold, including a panel 1, a fixed template 2, a moving template 3, a moving mold pad 4, a moving mold base plate 5, a top plate 6, a core-pulling assembly 7, multiple sets of rectangular guide pillars 8, multiple sets of small sliders 9, a top plate spring 10, and a spring guide rod 20.

[0022] The panel 1 is abutted against the fixed template 2, the fixed template 1 is abutted against the moving template 3, and the moving template 3 is abutted against the moving template pad 4. The upper end of the rectangular guide post 8 is fixed on the panel 1, and the lower part of the rectangular guide post 8 passes through the fixed template 2 and then enters the guide groove of the small slider 9. The small slider 9 slides in the fixed template 2, and the inner end of the small slider 9 extends into the cavity. The spring guide rod 20 is located between the top plate 6 and the moving template 3. The top plate spring 10 is sleeved on the spring guide rod 20, and the lower end of the top plate spring 10 abuts against the top plate 6. The upper end of the top plate spring 10 passes through the moving template pad 4 and abuts against the moving template 3. The core-pulling assembly 7 is installed in the moving template 3.

[0023] like Figure 4 , Figure 5 As shown, the core-pulling assembly 7 includes two side guide blocks 71, a middle guide block 72, two crossbar side pull plates 73, a crossbar middle pull plate 74, two crossbars 75, two swing blocks 76, two bent cores 77, and two swing block push rods 78. The two side guide blocks 71 and the middle guide block 72 are both fixed inside the moving mold plate 3. Arc-shaped guide grooves 711 and 721 are provided on both the side guide blocks 71 and the middle guide block 72. The lower ends of the two crossbar side pull plates 73 are respectively fixed to the moving mold pad 4 and are positioned opposite each other. The lower end of the crossbar middle pull plate 73 is fixed to the moving mold pad 4 and is located between the two crossbar side pull plates 73. The upper ends of the crossbar middle pull plate 74 extend into the moving mold plate 3, and the two ends of the crossbar 75 are respectively hooked into the horizontal groove 731 on the upper part of the crossbar side pull plate 73 and the crossbar middle pull plate 74. The middle part of the crossbar 75 is movably inserted through the arc-shaped guide grooves 711 and 721 of the side guide block 71 and the middle guide block 72. The arc-shaped guide grooves 711 and 721 can guide the crossbar 75 to move along the arc. The lower end of the swing block 76 is fixedly sleeved on the middle part of the crossbar 75. The lower end of the bent core 77 is fixed on the swing block 76. The upper end of the bent core 77 extends into the cavity. The lower end of the swing block push rod 78 is fixed on the moving mold pad plate 4. The upper end of the swing block push rod 78 abuts against the swing block 76.

[0024] The middle guide block 72 has a rectangular through groove 722 in the middle, and is a rectangular piece with four side walls. Arc-shaped guide grooves 721 are respectively opened on two symmetrical side walls; the upper end of the crossbar pull plate 74 is movably fitted into the rectangular through groove 722 of the middle guide block 72.

[0025] The working principle of this utility model:

[0026] like Figures 6-9As shown, during mold opening, the moving mold plate 3, driven by the top plate spring 10, first separates from the moving mold pad 4. The side guide block 71 and the middle guide block 72 in the core-pulling assembly 7 move upward with the moving mold plate 3. The crossbar 75 is restricted from moving upward by the crossbar side pull plate 73 and the crossbar middle pull plate 74. The crossbar 75 moves downward along the arc-shaped guide grooves 711 and 721 of the side guide block 71 and the middle guide block 72, pulling the bent core 77 out of the arc-shaped bent hole 101 of the plastic product 100, thus achieving arc-shaped core pulling. During mold closing, the crossbar 75 moves upward along the arc-shaped guide grooves 711 and 721 of the side guide block 71 and the middle guide block 72. The swing block push rod 78 abuts against the swing block 76, causing the swing block 76 to return to its original position.

[0027] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model should still fall within the scope of the patent of the present utility model.

Claims

1. A slider arc core-pulling mold characterized by comprising: Includes moving mold plate, moving mold pad, moving mold base plate, top plate, top plate spring, spring guide rod, and core pulling assembly; The moving template is in contact with the moving template pad. The spring guide rod is located between the top plate and the moving template. The top plate spring is sleeved on the spring guide rod and the lower end of the top plate spring abuts against the top plate. The upper end of the top plate spring passes through the moving template pad and abuts against the moving template. The core-pulling assembly is installed inside the moving template. The core-pulling assembly includes two side guide blocks, a middle guide block, two crossbar side pull plates, a crossbar middle pull plate, two crossbars, two swing blocks, two bent cores, and two swing block push rods. The two side guide blocks and the middle guide block are both fixed inside the moving mold plate. Arc-shaped guide grooves are provided on both the side guide blocks and the middle guide block. The lower ends of the two crossbar side pull plates are respectively fixed to the moving mold plate and are positioned opposite each other. The lower end of the crossbar middle pull plate is fixed to the moving mold plate and is located between the two crossbar side pull plates. The upper ends of the pull plate and the middle pull plate of the crossbar extend into the moving mold plate, respectively. The two ends of the crossbar are respectively hooked into the horizontal grooves at the top of the side pull plate and the middle pull plate of the crossbar, and the middle part of the crossbar moves through the arc-shaped guide grooves of the side guide block and the middle guide block. The arc-shaped guide grooves can guide the crossbar to move along the arc. The lower end of the swing block is fixedly sleeved in the middle of the crossbar. The lower end of the bent core is fixed on the swing block. The upper end of the bent core extends into the cavity. The lower end of the swing block push rod is fixed on the moving mold plate, and the upper end of the swing block push rod abuts against the swing block.

2. The slider arc core-pulling mold according to claim 1, wherein: The central guide block has a rectangular through groove in the middle, and is a rectangular piece with four side walls. Arc-shaped guide grooves are respectively opened on two symmetrical side walls; the upper end of the crossbar pull plate is movably fitted into the rectangular through groove of the central guide block.

3. The slider arc core-pulling mold according to claim 1, wherein: It also includes a panel, a fixed template, multiple sets of rectangular guide pillars, and multiple sets of small sliders; the panel is in contact with the fixed template, the fixed template is in contact with the moving template, the upper end of the rectangular guide pillar is fixed on the panel, the lower part of the rectangular guide pillar passes through the fixed template and enters the guide groove of the small slider, the small slider slides in the fixed template, and the inner end of the small slider extends into the cavity.

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