Ejection mechanism of injection mold for automobile parts

Abstract

The utility model discloses an automobile part injection mold ejection mechanism, which belongs to the technical field of automobile part injection molds, and comprises an ejector pin, the ejector pin comprises a mounting seat, a threaded core, a threaded sleeve and a rotation limiting elastic clamp, the lower end of the threaded core is fixedly connected to the upper end of the mounting seat, and the upper part of the threaded core is buckled and matched with the rotation limiting elastic clamp; the threaded core is movably inserted into the threaded sleeve in a penetrating mode, the lower portion of the threaded sleeve is installed on the lower portion of the threaded core in a threaded mode, so that the threaded sleeve spirally ascends and descends along the outer wall of the threaded core, the overall length of the ejector pin is adjusted, and after the ejector pin is installed in a target mold, the inner wall of the mold is used for limiting opening of the rotation limiting elastic clamp, and the threaded core cannot expand outwards to form the rotation limiting elastic clamp. The rotation limiting elastic clamp acts on the threaded sleeve, so that the stability of the adjustment result is improved; the matching degree between the length of the ejector pin and different molds is improved by adjusting the length of the ejector pin.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts injection mold, especially relates to automobile parts injection mold ejection mechanism. BACKGROUND

[0002] Injection mold is the plastic material processing industry and plastic forming machine supporting, endow plastic material products with complete configuration and accurate size tool, injection mold adopts the needle to eject the product of forming, then retracts the needle when closing.

[0003] Because the mould model is different, the length of the ejector pin required is also different, not only the thickness needs to be corresponding, but also the length needs to be corresponding, wherein the thickness model is relatively less, and the length model is relatively more, thereby causing the matching degree of the conventional automobile parts injection mold ejector pin and different mold to be low.

[0004] Therefore, the automobile parts injection mold ejection mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a automobile parts injection mold ejection mechanism is provided to solve the matching degree of the conventional automobile parts injection mold ejector pin and different mold to be low.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The automobile parts injection mold ejection mechanism, including the ejector pin, the ejector pin includes the mounting seat, the threaded core, the threaded sleeve and the limit rotation elastic clamp, the lower end of threaded core is fixedly connected in the upper end of mounting seat, the upper portion of threaded core is matched with the limit rotation elastic clamp buckle, threaded core is movably inserted in threaded sleeve, the lower portion of threaded sleeve is screw mounted in the lower portion of threaded core, the upper end of threaded sleeve is fixedly connected with the upper portion of limit rotation elastic clamp, the lower portion of limit rotation elastic clamp is movably clamped in the inside of threaded sleeve.The mounting seat is screwed limit rotation elastic clamp, and threaded sleeve is rotated by limit rotation elastic clamp, in the process, the upper portion of threaded core is used to open limit rotation elastic clamp and realizes rotation, makes threaded sleeve spiral lifting along the outer wall of threaded core, adjusts the overall length of ejector pin, after installing ejector pin in target mold, limit rotation elastic clamp is opened by using the inner wall of mold, so that threaded core cannot expand limit rotation elastic clamp outward, so that threaded core and limit rotation elastic clamp cannot relatively rotate, limit rotation elastic clamp acts on threaded sleeve, and the stability of adjusting result is increased;The matching degree between the length of ejector pin and different mold is improved by adjusting the length of ejector pin.

[0008] Preferably, the mounting seat includes a connecting block and a mounting block, the lower end of the connecting block is fixedly connected with the mounting block.The mounting block facilitates the assembly of the ejector pin and the mold.

[0009] Preferably, the threaded core comprises an octagonal column and a threaded column, and the lower end of the octagonal column is fixedly connected to the upper end of the threaded column.

[0010] Preferably, the threaded sleeve comprises a sleeve shell and a threaded ring, and the sleeve shell is symmetrically fixedly connected to the upper end of the threaded ring.

[0011] Preferably, the threaded sleeve further comprises a filling block, and the filling block is fixedly connected to the inner end of the upper portion of the sleeve shell.

[0012] Preferably, the limit-rotation elastic clamp comprises a top block and an elastic strip, and the elastic strip is symmetrically fixedly connected to the lower end of the top block.

[0013] In summary, the technical effects and advantages of the present application are as follows:

[0014] 1. The fixed mounting seat is screwed with the limit-rotation elastic clamp, the threaded sleeve is driven to rotate by the limit-rotation elastic clamp, in the process, the upper portion of the threaded core is used to open the limit-rotation elastic clamp to realize rotation, the threaded sleeve is spirally lifted along the outer wall of the threaded core, the overall length of the ejector pin is adjusted, after the ejector pin is installed in the target mold, the limit-rotation elastic clamp is limited to be opened by the inner wall of the mold, the threaded core cannot expand outward to limit the elastic clamp, so that the threaded core and the limit-rotation elastic clamp cannot rotate relatively, the limit-rotation elastic clamp acts on the threaded sleeve to increase the stability of the adjustment result, and the matching degree between the length of the ejector pin and different molds is improved by adjusting the length of the ejector pin.

[0015] 2. When the octagonal column and the limit-rotation elastic clamp rotate, the edges of the octagonal column are used to open the limit-rotation elastic clamp, when the limit-rotation elastic clamp cannot be opened, the octagonal column acts on the threaded column to prevent the threaded column from rotating relatively, so that the adjustment and limiting are facilitated.

[0016] 3. When the outer side of the elastic strip is not constrained, the octagonal column can open the elastic strip to rotate freely, when the outer side of the elastic strip is blocked by the inner wall of the mold, the elastic strip cannot be opened, so that the automatic rotation limiting is facilitated when the limit-rotation elastic clamp is used. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the mounting seat structure of the present application;

[0019] Figure 3 It is the threaded core structure schematic view of the utility model;

[0020] Figure 4 It is the threaded sleeve structure schematic view of the utility model;

[0021] Figure 5 It is the limit rotation elastic clamp structure schematic view of the utility model.

[0022] In the drawing: 2, mounting seat; 3, threaded core; 4, threaded sleeve; 5, limit rotation elastic clamp; 21, connecting block; 22, mounting block; 31, octagonal column; 32, threaded column; 41, filling block; 42, sleeve shell; 43, threaded ring; 51, top block; 52, elastic strip. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Referring to Figure 1 , the automobile part injection mold ejection mechanism includes a ejector pin, the ejector pin includes a mounting seat 2, a threaded core 3, a threaded sleeve 4 and a limit rotation elastic clamp 5, the lower end of the threaded core 3 is fixedly connected to the upper end of the mounting seat 2, the upper part of the threaded core 3 is matched with the limit rotation elastic clamp 5, the threaded core 3 is movably inserted into the threaded sleeve 4, the lower part of the threaded sleeve 4 is threadedly installed on the lower part of the threaded core 3, the upper end of the threaded sleeve 4 is fixedly connected to the upper part of the limit rotation elastic clamp 5, and the lower part of the limit rotation elastic clamp 5 is movably clamped in the inside of the threaded sleeve 4.

[0025] Referring to Figure 1 and 2 , the mounting seat 2 includes a connecting block 21 and a mounting block 22, and the lower end of the connecting block 21 is fixedly connected to the mounting block 22. The mounting block 22 is used for assembling the mold.

[0026] Referring to Figure 1 , 2 and 3, the threaded core 3 includes an octagonal column 31 and a threaded column 32, the lower end of the threaded column 32 is fixedly connected to the upper end of the connecting block 21, and the lower end of the octagonal column 31 is fixedly connected to the upper end of the threaded column 32. When rotation occurs between the octagonal column 31 and the limit rotation elastic clamp 5, the edges of the octagonal column 31 are used to open the limit rotation elastic clamp 5, and when the limit rotation elastic clamp 5 cannot be opened, the octagonal column 31 acts on the threaded column 32 to prevent the threaded column 32 from rotating relatively.

[0027] Referring to Figure 1 , 3And 4, the threaded sleeve 4 includes a sleeve shell 42 and a threaded ring 43, the threaded ring 43 is screwed on the threaded column 32, the octagonal column 31 is movably inserted in the sleeve shell 42, and the sleeve shell 42 is symmetrically fixedly connected to the upper end of the threaded ring 43. The threaded ring 43 is guided to spiral up and down by the threaded column 32.

[0028] Referring to Figure 1 And 4 , the threaded sleeve 4 further includes a filling block 41, which is fixedly connected to the inner upper end of the sleeve shell 42. The filling block 41 is used to increase the stability of the upper structure of the sleeve shell 42.

[0029] Referring to Figure 1 、 3 , 4 and 5, the limited rotation elastic clamp 5 includes a top block 51 and an elastic strip 52, the elastic strip 52 is movably clamped on the side of the octagonal column 31, the top block 51 is fixedly connected to the upper end of the sleeve shell 42, the upper end of the filling block 41 is fixedly connected to the top block 51, and the elastic strip 52 is symmetrically fixedly connected to the lower end of the top block 51. When the outer side of the elastic strip 52 is not constrained, the octagonal column 31 can be pushed to open the elastic strip 52 to rotate freely; when the outer side of the elastic strip 52 is blocked by the inner wall of the mold, the elastic strip 52 cannot be pushed open.

[0030] Working principle: the fixed mounting seat 2 is screwed to the limited rotation elastic clamp 5, which drives the threaded sleeve 4 to rotate, in the process, the upper part of the threaded core 3 pushes open the limited rotation elastic clamp 5 to rotate, so that the threaded sleeve 4 spirally ascends and descends along the outer wall of the threaded core 3, the overall length of the ejector pin is adjusted, after the ejector pin is installed in the target mold, the inner wall of the mold limits the opening of the limited rotation elastic clamp 5, so that the threaded core 3 cannot expand outward to limit the limited rotation elastic clamp 5, so that the threaded core 3 and the limited rotation elastic clamp 5 cannot rotate relative to each other, the limited rotation elastic clamp 5 acts on the threaded sleeve 4, thereby increasing the stability of the adjustment result.

[0031] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0032] In the description, the existing technology known to those skilled in the art and not changed is simply mentioned and the application direction is combined with the utility model to form a complete technology; the well-known technology is used to avoid excessive popularization, so that those skilled in the art can quickly understand the main content of the utility model.

Claims

1. An ejection mechanism for an injection mold for an automotive component, comprising an ejector pin, characterized in that: The top pin comprises a mounting seat (2), a threaded core (3), a threaded sleeve (4) and a limited rotation elastic clamp (5), the lower end of the threaded core (3) is fixedly connected to the upper end of the mounting seat (2), the upper part of the threaded core (3) is buckled and matched with the limited rotation elastic clamp (5), the threaded core (3) is movably inserted into the threaded sleeve (4), the lower part of the threaded sleeve (4) is screwedly installed on the lower part of the threaded core (3), the upper end of the threaded sleeve (4) is fixedly connected to the upper part of the limited rotation elastic clamp (5), and the lower part of the limited rotation elastic clamp (5) is movably clamped in the interior of the threaded sleeve (4).

2. The automotive part injection mold ejection mechanism of claim 1, wherein: The mounting seat (2) comprises a connecting block (21) and a mounting block (22), and the lower end of the connecting block (21) is fixedly connected to the mounting block (22).

3. The automotive part injection mold ejection mechanism of claim 1, wherein: The threaded core (3) comprises an octagonal column (31) and a threaded column (32), and the lower end of the octagonal column (31) is fixedly connected to the upper end of the threaded column (32).

4. The automotive part injection mold ejection mechanism of claim 1, wherein: The threaded sleeve (4) comprises a sleeve shell (42) and a threaded ring (43), and the sleeve shell (42) is symmetrically fixedly connected to the upper end of the threaded ring (43).

5. The automotive part injection mold ejection mechanism of claim 4, wherein: The threaded sleeve (4) further comprises a filling block (41), and the filling block (41) is fixedly connected to the inner end of the upper part of the sleeve shell (42).

6. The automotive parts injection mold ejection mechanism of claim 1, wherein: The limited rotation elastic clamp (5) comprises a top block (51) and an elastic strip (52), and the elastic strip (52) is symmetrically fixedly connected to the lower end of the top block (51).

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