Synchronous ejection mechanism for iron piece and product

Abstract

The utility model discloses an iron piece and product synchronous ejection mechanism which comprises a rear mold core and a product, an iron piece is clamped on the inner side of the product, threads are arranged on the outer side of the iron piece, and an injection molding groove matched with the product is formed in the rear mold core; the lower end of the injection molding groove is connected with a rear mold insert; a groove is formed in the middle of the rear mold insert; the lower end of the iron piece is arranged in the groove; a threaded fixing block is further connected into the groove. A slot matched with the lower end of the iron piece is formed in the inner side of the threaded fixing block; the lower end of the threaded fixing block is inserted into the slot; a thread matched with the lower end of the iron piece is arranged on the inner wall of the slot; the lower end of the iron piece is fixedly connected with the threaded fixing block through threads. The rear mold insert is arranged in the injection molding groove of the rear mold core, the threaded fixing block is inserted into the rear mold insert, a product, an iron piece and the threaded fixing block are ejected out at the same time through the ejector pin after injection molding is completed, then the threaded fixing block is taken out, operation is easy, and machining is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field especially relates to a iron piece and product synchronous ejection mechanism. BACKGROUND

[0002] Injection molding production is applied to the production process of various plastic products, when the outside of plastic products needs to be connected with the insert of other materials, usually the insert is connected on the mold first, so that the insert is directly set on the outside of products after injection molding, and the production is completed after ejection; when the insert or the outside of products needs to be injection molded with threads, it cannot be directly ejected, and only the threads can be processed after the products are processed, which is complicated to operate. SUMMARY

[0003] The utility model discloses a kind of iron piece and product synchronous ejection mechanism to solve the problems in prior art.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of iron piece and product synchronous ejection mechanism, including rear mould and product, the product inside is connected with iron piece, and the outside of the iron piece is equipped with thread, and the rear mould is equipped with injection molding groove matched with product;The rear mould insert is connected with the lower end of injection molding groove;The middle of the rear mould insert is equipped with recess;The lower end of the iron piece is arranged in recess;Thread fixing block is also connected in the recess;The lower end of the thread fixing block is inverted circular truncated cone;The inside of the thread fixing block is equipped with the insertion slot matched with the lower end of iron piece;The lower end of the thread fixing block is inserted with insertion slot;And the inner wall of the insertion slot is equipped with the thread matched with the lower end of iron piece;The lower end of the iron piece is fixedly connected with thread fixing block by thread.

[0006] Preferably, the rear mould is also connected with ejector pin;The upper end of the ejector pin is through thread fixing block and abuts with the lower end of iron piece.

[0007] Preferably, the lower end of the thread fixing block is equipped with the installation slot matched with ejector pin;The upper end of the installation slot is communicated with insertion slot;And the diameter of the installation slot is greater than the diameter of insertion slot;The thread fixing block and iron piece are driven to move upwards simultaneously by ejector pin.

[0008] Preferably, the lower end of the ejector pin is connected with ejector pin plate;The ejector pin is driven to move up and down by ejector pin plate.

[0009] Compared with prior art, the utility model provides a kind of iron piece and product synchronous ejection mechanism, with the following beneficial effects:

[0010] This mechanism for simultaneous ejection of the iron part and the product involves setting a rear mold insert in the injection groove of the rear mold core, inserting a threaded fixing block into the rear mold insert, and connecting the threaded fixing block to the iron part with a thread. This fixes the iron part while protecting its exposed portion. An ejector pin is set at the lower end of the rear mold core. After injection molding, the product, iron part, and threaded fixing block are ejected simultaneously by the ejector pin. The threaded fixing block can then be removed to complete the production of the product and iron part as a whole. The operation is simple and the processing is convenient. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0012] Fig. 2 This is a schematic diagram of the structure of the threaded fixing block of this utility model;

[0013] Fig. 3 This is a schematic diagram of the structure of the rear mold insert of this utility model.

[0014] In the diagram: 10. Rear mold core; 11. Product; 12. Iron part; 21. Injection groove; 22. Rear mold insert; 23. Groove; 24. Threaded fixing block; 25. Slot; 26. Ejector pin; 27. Mounting groove; 28. Ejector plate. Detailed Implementation

[0015] The following will refer to Figs. 1-3 The present invention describes the specific implementation of the mechanism for synchronous ejection of iron parts and products, including a rear mold core 10 and a product 11. An iron part 12 is snapped into the inner side of the product 11 to be injection molded. The upper end of the iron part 12 needs to be wrapped and snapped into the inner side of the product 11, and the lower end of the iron part 12 is provided with threads, i.e., threaded rods. An injection groove 21 matching the product 11 is pre-fabricated on the rear mold core 10; a rear mold insert 22 is connected to the lower end of the injection groove 21; a groove 23 is provided in the middle of the rear mold insert 22; the lower end of the iron part 12 is set in the groove 23; a threaded fixing block 24 is also connected in the groove 23; the lower end of the threaded fixing block 24 is an inverted frustum shape, which facilitates the insertion and installation of the threaded fixing block 24; the inner side of the threaded fixing block 24 is provided with a slot 25 that matches the lower end of the iron part 12; the lower end of the threaded fixing block 24 is inserted into the slot 25; and the inner wall of the slot 25 is provided with a thread that matches the lower end of the iron part 12. The lower end of the iron part 12 is inserted into the threaded fixing block 24 and can be fixedly connected to the threaded fixing block 24 through the thread, thus protecting the threaded structure of the lower end of the iron part 12.

[0016] In order to facilitate the product to be taken out, a ejector pin 26 is connected to the rear mold core 10; the upper end of the ejector pin 26 is in abutment with the lower end of the iron piece 12 through the threaded fixing block 24; the lower end of the ejector pin 26 is connected to an ejector pin plate 28; the ejector pin 26 is driven to move up and down through the ejector pin plate 28, and after the injection molding is completed, the product is ejected through the ejector pin 26.

[0017] Since the iron piece 12 is fixed together with the insert threaded fixing block 24 through threads and is ejected together, a mounting groove 27 is arranged at the lower end of the threaded fixing block 24 and is matched with the ejector pin 26; the upper end of the mounting groove 27 is communicated with the insertion groove 25; and the diameter of the mounting groove 27 is larger than that of the insertion groove 25, so that the upper end of the ejector pin 26 can contact the iron piece 12 and the threaded fixing block 24 at the same time and is ejected at the same time; the threaded fixing block 24 and the iron piece 12 are driven to move up at the same time through the ejector pin 26.

[0018] Before the injection molding, the threaded fixing block 24 is inserted into the recess 23, and then the iron piece 12 is screwed and fixed tightly on the threaded fixing block 24; when the product is ejected, the ejector pin 26 is driven to move up through the ejector pin plate 28, so that the product 11, the iron piece 12 and the threaded fixing block 24 are ejected together; after the ejection, the threaded fixing block 24 is manually rotated and taken out from the product 11, and the processing of the product is completed.

[0019] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A mechanism for synchronously ejecting an iron piece and a product, comprising a back mold core (10) and a product (11), an iron piece (12) is clamped inside the product (11), and a screw thread is arranged outside the iron piece (12), characterized in that, The back mould core (10) is provided with an injection slot (21) matched with the product (11); the lower end of the injection slot (21) is connected with a back mould insert (22); the middle of the back mould insert (22) is provided with a groove (23); the lower end of the iron piece (12) is arranged in the groove (23); the groove (23) is further connected with a threaded fixing block (24); the lower end of the threaded fixing block (24) is an inverted circular truncated cone; the inner side of the threaded fixing block (24) is provided with an insertion slot (25) matched with the lower end of the iron piece (12); the lower end of the threaded fixing block (24) is inserted with the insertion slot (25); and the inner wall of the insertion slot (25) is provided with a thread matched with the lower end of the iron piece (12); the lower end of the iron piece (12) is fixedly connected with the threaded fixing block (24) through the thread.

2. A mechanism for synchronously ejecting an iron piece and a product according to claim 1, characterized in that, The back mould core (10) is further connected with an ejector pin (26); the upper end of the ejector pin (26) penetrates the threaded fixing block (24) and abuts against the lower end of the iron piece (12).

3. A mechanism for synchronously ejecting an iron piece and a product according to claim 2, characterized in that, The lower end of the threaded fixing block (24) is provided with a mounting slot (27) matched with the ejector pin (26); the upper end of the mounting slot (27) is communicated with the insertion slot (25); and the diameter of the mounting slot (27) is larger than that of the insertion slot (25); the threaded fixing block (24) and the iron piece (12) are driven to move upward simultaneously through the ejector pin (26).

4. The mechanism according to claim 2, wherein The lower end of the ejector pin (26) is connected with an ejector pin plate (28); the ejector pin (26) is driven to move up and down through the ejector pin plate (28). The lower end of the ejector pin (26) is connected with an ejector pin plate (28); the ejector pin (26) is driven to move up and down through the ejector pin plate (28).

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