A mechanism for ejecting a part from a mold

Abstract

This invention relates to an internal ejection mechanism for a slanted pin, belonging to the field of mold technology. This mechanism includes a slanted pin, an upper ejector plate, a lower ejector plate, ejector pins, and a wear-resistant plate. The slanted pin has a product forming groove on its inner side and an ejector plate groove on its outer side. The ejector plate groove has a recess on one side to accommodate the upper and lower ejector plates. The upper ejector plate is positioned within the ejector plate groove, where the ejector pin is locked and passes through. The lower ejector plate is positioned within the ejector plate groove, its inner side abutting against the upper ejector plate, and its outer side abutting against the wear-resistant plate. The advantage of this invention is that, by using upper and lower ejector plates, it replaces the previous method of using a spring structure requiring break-out return, allowing for wider application in different mold designs. It is a convenient, stable, and economical solution.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to an inclined pin inner ejection mechanism.

BACKGROUND

[0002] In the current mold technology, in order to eject the molded product and separate it from the mold, the inclined pin has become one of the indispensable ejection structures. Different products have completely different inclined pin ejection designs. According to the current mold technology, if there is some lateral structure inside the mold, only inclined pins or sliders will have the problem of sticking to the mold, and it is necessary to increase the ejection. The general practice at present is to use the structure combined with spring pins and ejectors, but because the spring pin structure needs to rely on the broken position to reset, there is great limitation in mold design.

[0003] Therefore, it is necessary to improve the existing technology.

SUMMARY

[0004] The technical problem to be solved by the present application is that the current practice is to use the structure combined with spring pins and ejectors, but because the spring pin structure needs to rely on the broken position to reset, there is great limitation in mold design, and other problems.

[0005] The solution to the technical problem of the present application is an inclined pin inner ejection mechanism, comprising: an inclined pin, an upper top plate, a lower top plate, an ejector, and a wear plate.

[0006] The inclined pin is provided with a product forming groove on one side of the mold, and a top plate groove is provided on the side close to the mold outside. The top plate groove is recessed on one side and is used to accommodate the upper top plate and the lower top plate. The top plate groove is provided with grooves and holes for the spring and the ejector to extend. The inclined pin is in close contact with the wear plate on one side of the top plate groove.

[0007] The upper top plate is arranged in the top plate groove and is provided with a spring groove for accommodating the spring. The spring is arranged between the inclined pin and the upper top plate. The upper top plate cooperates with the spring to make the upper top plate move away from the side of the mold by the spring force and tightly abut against the lower top plate.

[0008] The lower top plate is arranged in the top plate groove and is in close contact with the upper top plate on the side of the mold and in close contact with the wear plate on the side of the mold outside. The side of the lower top plate in close contact with the wear plate slightly extends outward, which cooperates with the wear plate to make the inclined pin use the difference in thickness to press the upper top plate and the lower top plate in the direction of the mold when being ejected, so that the ejector ejects the molded product.

[0009] The wear-resistant plate is close to the lower ejector plate on one side of the mold, and the side of the wear-resistant plate that is close to the lower ejector plate is slightly reduced on the side that is close to the lower ejector plate. It is used to cooperate with the lower ejector plate so that when the inclined pin is ejected, it uses the difference in thickness to squeeze the upper ejector plate and the lower ejector plate inward towards the mold, so that the ejector pin ejects the molded product; the wear-resistant plate is provided with locking holes for fixing in the template. [Attached Image Description]

[0010] Figure 1 This is a schematic diagram of the structure of an inclined pin inner ejection mechanism of the present invention.

[0011] Figure 2 This is a side view of an inclined pin inner ejection mechanism according to the present invention.

[0012] Figure 3 This is a front view of an inclined pin inner ejection mechanism according to the present invention.

[0013] Figure 4 This invention relates to a slanted pin internal ejection mechanism. Figure 3 A cross-sectional view of Aa.

[0014] Figure 5 This invention relates to a slanted pin internal ejection mechanism. Figure 3 A sectional view of Bb.

[0015] Figure 6 This invention relates to a slanted pin internal ejection mechanism. Figure 4 Enlarged view of point C in the middle.

Detailed Implementation Methods

[0016] To further illustrate the technical means and effects of the present invention, the following detailed description is provided in conjunction with the embodiments of the present invention and their accompanying drawings.

[0017] Please see Figures 1-6 , Figure 1 A schematic diagram of an inclined pin internal ejection mechanism is shown. Figure 2 A side view of an inclined pin ejection mechanism is shown. Figure 3 A front view of an inclined pin internal ejection mechanism is shown. Figure 4 A slanted pin internal ejection mechanism is illustrated. Figure 3 The sectional view of Aa. Figure 5 A slanted pin internal ejection mechanism is illustrated. Figure 3 Sectional view of Bb, Figure 6 A slanted pin internal ejection mechanism is illustrated. Figure 4 Enlarged view of point C in the middle.

[0018] Please see Figure 1 The present invention provides, comprising:

[0019] The inclined pin 10 has a product forming groove 11 on one side near the mold and a top plate groove 12 on the side near the outside of the mold. The top plate groove 12 is a groove with one side to accommodate the upper top plate 20 and the lower top plate 30. The top plate groove 12 has slots and holes for the spring 23 and the ejector pin 21 to extend. The inclined pin 10 is close to the wear-resistant plate 40 on one side of the top plate groove 12.

[0020] Please see Figure 2 and Figure 5 The upper top plate 20 is disposed in the top plate groove 12, through which the ejector pin 21 is locked and inserted. The upper top plate 20 is provided with a spring groove 22 to accommodate a spring 23. The spring 23 is disposed between the inclined pin 10 and the upper top plate 20. The upper top plate 20 cooperates with the spring 23 so that the upper top plate 20 can move away from the mold side by the spring force and close to the lower top plate 30.

[0021] Please see Figure 4 and Figure 6 The lower top plate 30 is disposed in the top plate groove 12. It is close to the upper top plate 20 on the side facing inward and close to the wear-resistant plate 40 on the side facing outward. The side of the lower top plate 30 that is close to the wear-resistant plate 40 gradually extends 2.5mm (31) outward. The extension 31 is used to cooperate with the wear-resistant plate so that when the inclined pin is ejected, it uses the difference in thickness to squeeze the upper top plate 20 and the lower top plate 30 inward, so that the ejector pin 21 ejects the molded product.

[0022] Wear-resistant plate 40 is fixed in the mold. The wear-resistant plate 40 is close to the lower top plate 30 on one side of the mold. The side of the wear-resistant plate 40 that is close to the lower top plate 30 gradually shrinks by 1mm (41) towards the outside of the mold. The shrinkage 41 is used to cooperate with the lower top plate 30 so that when the inclined pin 10 is ejected, it uses the difference in thickness to squeeze the upper top plate 20 and the lower top plate 30 towards the inside of the mold, so that the ejector pin 21 ejects the molded product. The wear-resistant plate 40 is provided with locking holes 42 for fixing in the template.

[0023] When using the inclined pin ejection mechanism of the present invention for ejection, the thickness difference generated by the extension 31 and reduction 41 of the lower ejector plate 30 and the wear-resistant plate 40 is used to press the upper ejector plate 20 and the lower ejector plate 30 in the direction of mold inward, so that the ejector pin 21 ejects the molded product.

[0024] The benefits of this invention are that the inclined pin ejection mechanism of this invention, through the design of the upper and lower top plates, replaces the original method of breaking and returning to its original position using a spring structure, making this invention more widely applicable in mold designs with different needs. It is a convenient, stable and economical solution.

[0025] It should be noted that the technical principles of the present invention have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way.

[0026] Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without any creative effort, and these embodiments will all fall within the protection scope of the invention.

Claims

1. A tilting pin internal ejection mechanism, comprising: The components include a slanted pin, an upper top plate, a spring, a lower top plate, an ejector pin, and a wear-resistant plate. The characteristics are as follows: A slanted pin; the slanted pin has a product forming groove on one side near the mold, and a top plate groove on the side near the outside of the mold. The top plate groove is a groove with a recess on one side to accommodate the upper and lower top plates. The top plate groove has slots and holes for the spring and ejector pin to extend. The slanted pin is close to the wear-resistant plate on one side of the top plate groove. An upper top plate is provided, which is set in a top plate groove for the ejector pin to be locked and inserted therein. The upper top plate is provided with a spring groove to accommodate a spring. The spring is set between the inclined pin and the upper top plate. The upper top plate cooperates with the spring so that the upper top plate can move away from the mold side by the spring force and close to the lower top plate. The lower top plate is set in the top plate groove. Its side facing inward is close to the upper top plate, and its side facing outward is close to the wear-resistant plate. The side of the lower top plate that is close to the wear-resistant plate gradually extends 1 to 2.5 mm outward. A wear-resistant plate is fixed in the mold. The wear-resistant plate is close to the lower top plate on the side that is close to the lower top plate. The side that is close to the lower top plate gradually shrinks by 1 to 2.5 mm towards the outside of the mold.

2. The inclined pin internal ejection mechanism according to claim 1, characterized in that: When the inclined pin is ejected, the thickness difference generated by the extension and reduction of the lower ejector plate and the wear-resistant plate is used to press the upper ejector plate and the lower ejector plate inward towards the mold, so that the ejector pin ejects the molded product.

3. The inclined pin internal ejection mechanism according to claim 1, characterized in that: The wear-resistant plate is provided with locking holes, which are used to fix the wear-resistant plate in the mold.

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