CN219381473U - Mould structure for preventing main blade shaft pin from breaking - Google Patents

Abstract

The utility model discloses a main blade shaft pin breakage-proof mold structure, which comprises a body and a shaft pin formed by extending one side of the body, wherein the shaft pin is provided with a shaft hole, the mold structure comprises a front mold with a front mold core and a rear mold with a rear mold core, a cavity for injection molding the main blade is formed between the front mold core and the rear mold core, the rear mold further comprises a needle and a core pulling block, the core pulling block is arranged at the side of the rear mold core, one end of the needle is fixedly connected with the core pulling block, the other end of the needle transversely extends into the cavity for forming the shaft hole on the shaft pin, and a rear support column propped against the needle is vertically arranged on the rear mold. According to the utility model, the support column is arranged to support the insert pin, so that the strength of the insert pin can be greatly increased, the impact force can be borne, and the shaft pin can be ensured to be molded.

Description

Mould structure for preventing main blade shaft pin from breaking

Technical Field

The utility model relates to the technical field of dies, in particular to a die structure for preventing a main blade shaft pin from breaking.

Background

With the continuous promotion of the aesthetic of the public, the automobile air outlet forms are updated and diversified continuously, wherein the prolate head uses the main blade structure in the form of a bolt, and simultaneously, the preference of the client side for the slim type makes the shaft pin of the main blade connecting part always have the diameter within 1.2 mm. The long and thin insert needle with the diameter within 1.2mm on the die is easy to break or be punched and bent by the glue inlet in the injection molding process, and the existing solutions are all manufactured by spare parts of the insert needle, and meanwhile, the spare parts are timely repaired and replaced by the process of detecting the breakage or punching and bending of the insert needle. This results in production plans that cannot be accurately predicted, and at the same time, the production requirements cannot be met when the customer order volume is large.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the anti-breaking die structure for the main blade shaft pin is provided, and the support column is arranged to support the insert pin, so that the strength of the insert pin can be greatly increased, the impact force can be borne, and the shaft pin can be formed.

In order to achieve the above object, the present utility model provides the following technical solutions.

The utility model provides a mould structure that main blade pivot was prevented disconnected, main blade includes the body and extends the pivot that forms by body one side, be formed with the shaft hole on the pivot, mould structure is including the front mould that has the front mould benevolence and the back mould that has the back mould benevolence, be formed with the die cavity that is used for moulding plastics main blade between front mould benevolence and the back mould benevolence, the back mould still includes the mold insert and the piece of loosing core, the piece of loosing core sets up in the side of back mould benevolence, the one end and the piece fixed connection of loosing core of inserting the needle, the other end of inserting the needle transversely stretches into in the die cavity is used for the shaft hole on shaping pivot, the back mould is last vertically be equipped with the back support column that the needle offseted.

The beneficial effects of the utility model are as follows: according to the mold structure, the rear support columns are arranged in the rear mold and abutted against the insert pins, the main blade structure is formed through the cavity during injection molding, the shaft hole structure is formed through the insert pins, and meanwhile, due to the existence of the rear support columns, when the insert pins bear injection molding pressure, the rear support columns can support the insert pins, so that the strength of the insert pins is greatly improved, the impact force can be borne, the shaft pins can be formed, insert pin breakage is avoided, the spare part utilization rate is reduced, and the production efficiency is improved.

As an improvement of the utility model, the insert pin is transversely arranged, and the rear support column is vertically arranged and is vertical to the insert pin. Through above-mentioned improvement for the back support column can bear the impact force when moulding plastics steadily.

As an improvement of the utility model, the end surface of the rear supporting column is concavely formed with a rear supporting part matched with the insert pin. Through above-mentioned improvement for the cooperation is more stable between back support column and the mold insert.

As an improvement of the utility model, the rear support column and the rear mould are of an integrated structure.

As an improvement of the utility model, the front mould is provided with a front support column which is propped against the insert pin.

As an improvement of the present utility model, the axis of the front support column is collinear with the axis of the rear support column.

As an improvement of the utility model, the end surface of the front support column is concavely formed with a front support part matched with the insert pin.

As an improvement of the utility model, the front support column and the front mould are of an integrated structure.

As an improvement of the utility model, the rear support column movably stretches into the cavity, the rear mold further comprises a mounting block and a connecting block, the mounting block is arranged below the rear mold core, the tail end of the rear support column is arranged on the mounting block, the top end of the rear support column stretches into the cavity through the rear mold core, the connecting block is fixedly connected with the core pulling block, and the connecting block is propped against the mounting block to support the mounting block.

As an improvement of the utility model, an elastic piece is arranged between the mounting block and the rear die core, a first inclined plane is formed at the bottom of the mounting block, and a second inclined plane matched with the first inclined plane is formed on the connecting block.

Drawings

FIG. 1 is a schematic view of the main blade structure of the present utility model.

Fig. 2 is a schematic diagram of the overall structure of the present utility model.

Fig. 3 is a schematic cross-sectional view of the overall structure of the present utility model.

Fig. 4 is a schematic view of a partially enlarged structure of fig. 3 a according to the present utility model.

Fig. 5 is a schematic structural view of another embodiment of the present utility model.

FIG. 6 is a schematic view of the rear mold insert hidden in FIG. 5 according to the present utility model.

In the figure, 1, a rear mold core; 2. inserting a needle; 3. a core pulling block; 4. a rear support column; 5. a mounting block; 6. a connecting block; 7. an elastic member; 8. a front mold core; 8.1, front support columns; 9. a main blade; 9.1, a shaft pin; 9.2, shaft holes;

Detailed Description

The utility model is further explained in connection with the drawings.

Referring to the mold structure for preventing the main blade shaft pin from breaking shown in fig. 1 to 4, the main blade 9 comprises a body and a shaft pin 9.1 formed by extending from one side of the body, the shaft pin 9.1 is provided with a shaft hole 9.2, the mold structure comprises a front mold with a front mold core 8 and a rear mold with a rear mold core 1, a cavity for injecting the main blade 9 is formed between the front mold core 8 and the rear mold core 1, the rear mold further comprises an insert needle 2 and a core pulling block 3, the core pulling block 3 is arranged at the side of the rear mold core 1, one end of the insert needle 2 is fixedly connected with the core pulling block 3, the other end of the insert needle 2 extends into the cavity to be used for forming the shaft hole 9.2 on the shaft pin 9.1, and the rear mold is provided with a rear support column 4 extending into the cavity to prop against the insert needle 2. The insert pin 2 is transversely arranged, and the rear support column 4 is vertically arranged and is perpendicular to the insert pin 2. The end surface of the rear support column 4 is concavely provided with a rear support part matched with the insert pin 2. So that the cooperation between the rear support column 4 and the insert needle 2 is more stable.

The front support column 8.1 which stretches into the cavity and abuts against the insert needle 2 is arranged on the front die, the axis of the front support column 8.1 is collinear with the axis of the rear support column 4, and a front support part matched with the insert needle 2 is formed in an inward concave manner on the end face of the front support column 8.1, so that the cooperation between the front support column 8.1 and the insert needle 2 is more stable. The rear support column 4 and the rear mould are of an integrated structure, and the front support column 8.1 and the front mould are of an integrated structure. The processing and the manufacturing are more convenient,

according to the mold structure, the rear support column 4 which is arranged in the rear mold and abuts against the insert needle 2 is used for forming the main blade 9 structure through the cavity during injection molding, the shaft hole 9.2 structure is formed through the insert needle 2, meanwhile, due to the existence of the rear support column 4, when the insert needle 2 bears injection molding pressure, the rear support column 4 can play a supporting role on the insert needle 2, the strength of the insert needle 2 is greatly increased, the impact force can be borne, the shaft pin 9.1 can be ensured to be formed, the insert needle 2 is prevented from being broken, the spare part utilization rate is reduced, the production efficiency is improved, and the front support column 8.1 and the rear support column 4 are arranged vertically to the insert needle 2, so that the front support column 8.1 and the rear support column 4 can stably bear the impact force during injection molding. After the die is opened, the front support column 8.1 of the front die is separated from the insert needle 2, the core pulling block 3 moves to drive the insert needle 2 to do core pulling action to separate from the main blade 9 in the cavity, so that the insert needle 2 moves from the cavity, and then the product is ejected, so that the main blade 9 is separated from the rear die, namely, the product is synchronously separated from the rear support column 4 on the rear die, the insert needle 2 does reset action, the front support column 8.1 of the synchronous front die is synchronously close along with die assembly until the die assembly is completed, and the front support column 8.1 and the rear support column 4 respectively support the front end of the insert needle 2, so that the insert needle 2 is stabilized in the die cavity.

Referring to fig. 5 to 6, in another embodiment of the present application, the overall structure is the same as that of the previous embodiment, except that: the back support column 4 is split type structure with back mould benevolence 1, and the back mould still includes installation piece 5 and connecting block 6, and back support column 4 sets up in the below of back mould benevolence 1, the terminal fixed setting of back support column 4 is on installation piece 5, and back support column 4's top passes back mould benevolence 1 activity and go deep into the die cavity for back support column 4 is vertical setting, connecting block 6 with loose core 3 fixed connection, and be formed with on the connecting block 6 with installation piece 5 matched with butt portion, support connecting block 6 through butt portion, the bottom of installation piece 5 is formed with first inclined plane, be formed with the second inclined plane on connecting block 6 and the 5 matched with terminal surface of installation piece. The installation piece 5 is equipped with elastic component 7 with back mould benevolence 1 between, in this embodiment, elastic component 7 is the spring, elastic component 7 one end offsets with installation piece 5, the elastic component 7 other end offsets with back mould benevolence 1, and during the compound die, elastic component 7 is in compression, during the drawing of patterns, loose core piece 3 lateral shifting, drive insert needle 2 and do the action of loosing core and break away from the main blade 9 in the die cavity, loose core piece 3 drives connecting block 6 synchronous movement simultaneously in the in-process that removes, cooperation through first inclined plane and second inclined plane, make connecting block 6 and installation piece 5 separate, elastic component 7 elasticity resets, promote installation piece 5 and move down, thereby make back support column 4 shift out from the die cavity, with the product separation, thereby realize the drawing of patterns, in the last embodiment, the demoulding mode of product and back support column 4 is promoted through elastic component 7, in this embodiment, make back support column 4 be difficult for causing the damage to the product during the drawing of patterns.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims (7)

1. The utility model provides a mould structure that main blade pivot was prevented disconnected, main blade includes the body and extends the pivot that forms by body one side, be formed with the shaft hole on the pivot, mould structure is including the front mould that has the front mould benevolence and the back mould that has the back mould benevolence, be formed with the die cavity that is used for moulding plastics main blade between front mould benevolence and the back mould benevolence, its characterized in that: the rear mould further comprises a needle and a core-pulling block, the core-pulling block is arranged at the side of the rear mould core, one end of the needle is fixedly connected with the core-pulling block, the other end of the needle transversely stretches into the cavity to be used for forming a shaft hole on the shaft pin, and a rear supporting column propped against the needle is vertically arranged on the rear mould.

2. The mold structure for preventing breakage of a main blade pin according to claim 1, wherein: the end face of the rear support column is inwards recessed to form a rear support part matched with the insert pin.

3. The mold structure for preventing breakage of a main blade pin according to claim 1, wherein: the rear support column and the rear mould core are of an integrated structure.

4. The mold structure for preventing breakage of a main blade pin according to claim 1, wherein: the back support column activity stretches into in the die cavity, the back mould still includes installation piece and connecting block, the installation piece sets up in the below of back mould benevolence, the end of back support column sets up on the installation piece, the top of back support column passes back mould benevolence and stretches into in the die cavity, the connecting block with loose core piece fixed connection, and the connecting block offsets with the installation piece in order to support the installation piece.

5. The mold structure for preventing breakage of a main blade pin according to claim 4, wherein: an elastic piece is arranged between the mounting block and the rear mold core, a first inclined plane is formed at the bottom of the mounting block, and a second inclined plane matched with the first inclined plane is formed on the connecting block.

6. The mold structure for preventing breakage of a main blade pin according to claim 1, wherein: and a front support column propped against the insert pin is arranged on the front die.

7. The mold structure for preventing breakage of a main blade pin according to claim 6, wherein: the axis of the front support column is collinear with the axis of the rear support column.