Oil cylinder sliding block connecting rod arc drawing mechanism

Abstract

The utility model discloses an oil cylinder sliding block connecting rod arc pulling mechanism. The oil cylinder sliding block connecting rod arc pulling mechanism comprises an oil cylinder, a main sliding block, a swing rod, an arc sliding block, a mold core, an outer guide block and an inner guide block. The rod end of a piston rod of the oil cylinder is connected with the outer end of the main sliding block, one end of the swing rod is hinged to the main sliding block, the other end of the swing rod is hinged to the arc sliding block, the inner end of the arc sliding block is connected with the mold core, and the outer side and the inner side of the arc sliding block are connected to the outer guide block and the inner guide block in a sliding mode respectively. Due to the fact that the oil cylinder drives the arc-shaped sliding block to conduct arc-shaped movement through the main sliding block and the swing rod, the outer guide block and the inner guide block have the guide effect on the arc-shaped sliding block, the arc-shaped sliding block can move stably and smoothly, and the clamping stagnation phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to an oil cylinder slider connecting rod arc extraction mechanism. Background Art

[0002] Plastic injection molds are tools for producing plastic products and are widely used. Some plastic products have arc-shaped inner holes, and special core-pulling mechanisms need to be designed to complete the core-pulling of plastic products after molding. The traditional arc-pulling core-pulling structure has the following defects:

[0003] 1. The traditional arc core pulling method usually uses a cylinder to drive the thread. One core pulling slider needs to be equipped with a cylinder or a set of driving gears, and the structure is relatively complicated.

[0004] 2. The traditional arc-shaped inner hole core pulling structure is relatively large, and the processing and material costs are relatively high.

[0005] 3. The engagement of the traditional arc-shaped inner hole core pulling thread will be affected by the assembly clearance, and the core pulling action is more likely to get stuck. Utility Model Content

[0006] The utility model aims to provide a cylinder slider connecting rod arc pulling mechanism with stable and smooth core pulling.

[0007] To achieve the above purpose, the technical solution of the utility model is:

[0008] The utility model is an oil cylinder slider connecting rod arc extraction mechanism, comprising an oil cylinder, a main slider, a swing rod, an arc slider, a core, an outer guide block, an inner guide block and an inner swing rod;

[0009] The piston rod end of the oil cylinder is connected to the outer end of the main slider, one end of the swing rod is hinged on the main slider, the other end of the swing rod is hinged on the arc slider, the inner end of the arc slider is connected to the core, the outer side of the arc slider is slidably connected to the outer guide block, and the inner wall of the arc slider is hinged on the inner guide block through the inner swing rod.

[0010] The utility model also includes a movable template; the cylinder body of the oil cylinder is fixedly installed on the outer wall of the movable template, the rod end of the piston rod of the oil cylinder penetrates into the movable template and is connected with the outer end of the main slider, the main slider is slidably connected to the movable template, the arc slider is slidably connected to the movable template, and the outer guide block and the inner guide block are both fixedly installed on the movable template.

[0011] There are two swing rods and two arc sliders; the two sides of the main slider are hinged to the two arc sliders through the swing rods.

[0012] The outer guide block has an arc-shaped inner wall; the inner guide block has an arc-shaped outer wall, and the inner wall of the arc sliding block moves along the arc-shaped outer wall of the inner guide block.

[0013] The outer guide block has an arc-shaped inner wall; the inner guide block has an arc-shaped outer wall.

[0014] After adopting the above scheme, since the utility model includes an oil cylinder, a main slider, a swing rod, an arc slider, a core, an outer guide block, and an inner guide block, the oil cylinder drives the arc slider to perform arc motion through the main slider and the swing rod, and since the outer guide block and the inner guide block have a guiding effect on the arc slider, it has the following advantages:

[0015] The structure is simple, and only a rocker rod is used to drive the arc slider. One oil cylinder can drive three sliders with different core pulling directions. The arc slider moves smoothly and steadily, and the double guide blocks can ensure that the arc slider slides within the specified track, making the arc slider move very stably and smoothly without the occurrence of jamming. The arc slider, the inner guide block, and the outer guide block are concentric circle structures, so that the arc slider's motion track direction is consistent, with high recognition and easy maintenance. The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric drawing of the utility model;

[0017] Figure 2 This is a schematic diagram of the utility model before core pulling;

[0018] Figure 3 It is a schematic diagram of the utility model after core pulling. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 3 As shown, the utility model is a cylinder slider connecting rod arc extraction mechanism, comprising a movable template 1, a cylinder 2, a main slider 3, a swing rod 4, an arc slider 5, a core 6, an outer guide block 7, an inner guide block 8, and an inner swing rod 9.

[0020] The cylinder body of the oil cylinder 2 is fixedly mounted on the outer wall of the movable template 1, and the rod end of the piston rod of the oil cylinder 2 is connected with the outer end of the main slider 3 after passing through the movable template 1, and the main slider 3 is slidably connected to the movable template 1, one end of the rocker arm 4 is hinged on the main slider 3, and the other end of the rocker arm 4 is hinged on the arc slider 5, the inner end of the arc slider 5 is connected with the core 6, and the core 6 extends into the cavity, and the arc slider 5 is slidably connected to the movable template 1, and the outer side of the arc slider 5 is slidably connected to the outer guide block 7, and the outer guide block 7 has an arc-shaped inner wall 71, and the inner wall of the arc slider 5 is hinged on the inner guide block 8 through the inner rocker arm 9, and the inner guide block 8 has an arc-shaped outer wall 81, and the inner wall of the arc slider 5 moves along the arc-shaped outer wall of the inner guide block 8, and the outer guide block 7 and the inner guide block 8 are both fixedly mounted on the movable template 1 and guide the arc slider 5.

[0021] In this embodiment, there are two swing rods and two arc sliders; the two sides of the main slider are hinged to the two arc sliders through the swing rods respectively.

[0022] The working principle of this utility model:

[0023] The oil cylinder 2 drives the arc slider 5 to perform arc motion through the main slider 3 and the rocker arm 4. Under the guidance of the outer guide block 7 and the inner guide block 8, the arc slider 5 moves very stably and smoothly.

[0024] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. A cylinder slider connecting rod arc extraction mechanism, characterized in that: It includes a cylinder, a main slider, a swing rod, an arc slider, a core, an outer guide block, an inner guide block, and an inner swing rod; The piston rod end of the oil cylinder is connected to the outer end of the main slider, one end of the swing rod is hinged on the main slider, the other end of the swing rod is hinged on the arc slider, the inner end of the arc slider is connected to the core, the outer side of the arc slider is slidably connected to the outer guide block, and the inner wall of the arc slider is hinged on the inner guide block through the inner swing rod.

2. According to claim 1, the cylinder slider connecting rod arc-drawing mechanism is characterized in that: It also includes a movable template; the cylinder body of the oil cylinder is fixedly installed on the outer wall of the movable template, the rod end of the piston rod of the oil cylinder penetrates into the movable template and is connected with the outer end of the main slider, the main slider is slidably connected to the movable template, the arc slider is slidably connected to the movable template, and the outer guide block and the inner guide block are both fixedly installed on the movable template.

3. The cylinder slider connecting rod arc-drawing mechanism according to claim 1, characterized in that: There are two swing rods and two arc sliders; the two sides of the main slider are hinged to the two arc sliders through the swing rods.

4. The cylinder slider connecting rod arc-drawing mechanism according to claim 1, characterized in that: The outer guide block has an arc-shaped inner wall; the inner guide block has an arc-shaped outer wall, and the inner wall of the arc sliding block moves along the arc-shaped outer wall of the inner guide block.

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