CN211616490U

CN211616490U - Injection mold of front mold spring needle

Info

Publication number: CN211616490U
Application number: CN201922131930.1U
Authority: CN
Inventors: 袁巍林
Original assignee: Guangdong Jingshi Jingmo Technology Co ltd
Current assignee: Guangdong Jingshi Jingmo Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-10-02
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses an injection mold of a front mold spring needle, which comprises a front mold and a rear mold matched with the front mold, wherein the front mold comprises an upper mold base, an upper mold plate, a line position pushing piece, a spring needle guide block and a spring needle mechanism, the upper mold plate, the line position pushing piece and the spring needle guide block are all fixedly arranged on the upper mold base, the upper mold plate is provided with an upper mold cavity, the spring needle guide block is arranged at the side position of the upper mold plate, and the spring needle mechanism is arranged at the spring needle guide block; the rear die comprises a lower die base, a lower die plate, an oblique ejecting piece and a slide block which is matched with the lower die plate to form a lower cavity, the lower die plate is fixedly installed on the lower die base, the oblique ejecting piece is obliquely arranged on the lower die base in a sliding mode along an X axis, and the slide block is arranged on the lower die base in a sliding mode along a Y axis. The utility model discloses an adopt bullet needle mechanism, make oblique top piece can move back the translation passageway of line position piece when the compound die to avoided the oblique top piece to block the condition of line position piece effectively.

Description

Injection mold of front mold spring needle

Technical Field

The utility model relates to an injection mold technical field, in particular to injection mold of front mould bullet needle.

Background

A flanged injection product is shown in figure 5, and the flanged side wall of the flanged injection product is also provided with a related injection molding shape which can be realized only by a lower cavity formed by matching a line block and a lower template. However, the related parts on the mold for ejecting the injection-molded product interfere with the mold, so that the slide block is jammed, and how to solve the above problem becomes a technical problem to be overcome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provide an injection mold of front mould bullet needle.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an injection mold of a front mold spring needle comprises a front mold and a rear mold matched with the front mold, wherein the front mold comprises an upper mold base, an upper mold plate, a line pushing piece, a spring needle guide block and a spring needle mechanism, the upper mold plate, the line pushing piece and the spring needle guide block are fixedly arranged on the upper mold base, the upper mold plate is provided with an upper mold cavity, the spring needle guide block is arranged at the side position of the upper mold plate, and the spring needle mechanism is arranged at the spring needle guide block;

the rear die comprises a lower die base, a lower die plate, an inclined ejecting piece and a slide block which is matched with the lower die plate to form a lower cavity, the lower die plate is fixedly arranged on the lower die base, the inclined ejecting piece is obliquely and slidably arranged on the lower die base along an X axis, and the slide block is flatly and slidably arranged on the lower die base along a Y axis; when the die is closed, the elastic needle mechanism pushes the inclined ejector out of the slide block, the slide pusher drives the slide block to translate, the slide block and the lower die plate are matched to form a lower die cavity, and the upper die cavity and the lower die cavity of the upper die plate form an injection die cavity together.

Further elaborating, the back mould is including the down tube, oblique top member fixed mounting in the one end of down tube, the other end of down tube is located an inclined plane department of upper die base, bullet needle mechanism promotes oblique top member, oblique top member with the down tube is followed the inclined plane skew.

Further elaborating, bullet needle mechanism is including pressure spring, needle bar, the upper end of needle bar is equipped with the flange, the lower extreme of needle bar when the compound die with oblique liftout piece contacts, bullet needle guide block opens has the guiding hole, the lower extreme of needle bar passes the guiding hole, the diameter of flange is greater than the aperture of guiding hole, the one end of pressure spring with the punch holder is contradicted, the other end of pressure spring with the needle bar the flange is contradicted.

Further, the slide block is provided with an oblique T-shaped groove, and the slide pushing piece is provided with an oblique T-shaped convex block matched with the oblique T-shaped groove.

The beneficial effects of the utility model reside in that: the utility model discloses an adopt bullet needle mechanism, make oblique top piece can move back the translation passageway of line position piece when the compound die to avoided the oblique top piece to block the condition of line position piece effectively.

Drawings

Fig. 1 is a schematic structural diagram of the present invention during mold opening.

FIG. 2 is a schematic view of the rear mold in the open position (note: the lower mold plate has been hidden).

Fig. 3 is a schematic structural view of the rear mold when the mold is closed (note: the lower mold plate is hidden).

Fig. 4 is a schematic structural view of the front mold.

Fig. 5 is a schematic view of the structure of a finished injection molded product.

FIG. 6 is a schematic diagram of a row pusher.

Reference numerals: 10. a front mold; 11. an upper die holder; 12. mounting a template; 13. a slide pusher; 131. an oblique T-shaped bump; 14. a bullet needle guide block; 15. a needle ejection mechanism; 151. a pressure spring; 152. a needle bar; 16. a sprue bush; 20. a rear mold; 21. a lower die holder; 22. a lower template; 23. a slanted ejecting member; 24. a row bit block; 241. an oblique T-shaped groove; 25. a diagonal rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

With reference to fig. 1 to 4, an injection mold for a front mold spring needle includes a front mold 10 and a rear mold 20 matched with the front mold 10, where the front mold 10 includes an upper mold base 11, an upper mold plate 12, a slide pushing member 13, a spring needle guide block 14, and a spring needle mechanism 15, the slide pushing member 13 is specifically combined with fig. 6, the upper mold plate 12, the slide pushing member 13, and the spring needle guide block 14 are all fixedly mounted on the upper mold base 11, the upper mold plate 12 is provided with an upper cavity, the spring needle guide block 14 is disposed at a side position of the upper mold plate 12, and the spring needle mechanism 15 is disposed at the spring needle guide block 14;

the rear die 20 comprises a lower die base 21, a lower die plate 22, an inclined ejecting piece 23 and a slide block 24 which is matched with the lower die plate 22 to form a lower cavity, the lower die plate 22 is fixedly mounted on the lower die base 21, as shown in fig. 2, the inclined ejecting piece 23 is obliquely arranged on the lower die base 21 in a sliding manner along an X axis, and the slide block 24 is arranged on the lower die base 21 in a sliding manner along a Y axis in a horizontal direction; when the die is closed, the elastic needle mechanism 15 pushes the inclined ejector 23 away from the slide block 24, the slide pusher 13 drives the slide block 24 to translate, so that the slide block 24 and the lower die plate 22 are matched to form a lower cavity, and the upper cavity and the lower cavity of the upper die plate 12 together form an injection molding die cavity. Specifically, a sprue bush 16 is provided at the front mold 10, and molten plastic is injected into the mold through the sprue bush 16 during mold closing.

Referring to fig. 2 and fig. 3, the rear mold 20 includes an inclined rod 25, the slanted ejecting member 23 is fixedly mounted at one end of the inclined rod 25, the other end of the inclined rod 25 is disposed at an inclined plane of the upper mold base 11, the elastic needle mechanism 15 pushes the slanted ejecting member 23, and the slanted ejecting member 23 and the inclined rod 25 are offset along the inclined plane.

Referring to fig. 1, the elastic needle mechanism 15 includes a pressure spring 151 and a needle bar 152, a flange is disposed at an upper end of the needle bar 152, a lower end of the needle bar 152 contacts with the slanted ejecting member 23 when the mold is closed, the elastic needle guide block 14 is provided with a guide hole, a lower end of the needle bar 152 passes through the guide hole, a diameter of the flange is larger than a bore diameter of the guide hole, one end of the pressure spring 151 abuts against the upper mold base 11, and the other end of the pressure spring 151 abuts against the flange of the needle bar 152. Since the slanted ejecting part 23 is used for ejecting a product after injection molding, as shown in fig. 2, when the product is ejected, the slanted ejecting part 23 enters the translation channel of the traveling block 24, in order to avoid the situation that the traveling block 24 is blocked by the slanted ejecting part 23, and the traveling block 24 cannot be folded with the lower mold plate 22 to form a lower cavity, before the front mold 10 and the rear mold 20 are completely closed, the needle ejecting mechanism 15 can drive the slanted ejecting part 23 to retreat from the translation channel of the traveling block 24, so that the situation that the slanted ejecting part 23 blocks the traveling block 24 is effectively avoided.

Referring to fig. 1, the slide block 24 is provided with an inclined T-shaped groove 241, and as shown in fig. 6, the slide pushing member 13 is provided with an inclined T-shaped protrusion 131 matched with the inclined T-shaped groove 241. During mold closing, the slide pushing member 13 drives the slide block 24 to translate through the cooperation of the inclined T-shaped protrusion 131 and the inclined T-shaped groove 241 of the slide block 24.

The working mode is as follows: when the front mold 10 and the rear mold 20 are closed, the front mold 10 moves downwards, the needle rod 152 of the elastic needle mechanism 15 contacts with the inclined ejecting piece 23 of the rear mold 20 firstly, as shown in the attached drawing, the needle rod 152 pushes the inclined ejecting piece 23 away from the traveling block 24, as shown in the attached drawing, 3, after the needle rod 152 pushes the inclined ejecting piece 23 away from the traveling block 24, the traveling block 24 is driven by the traveling block pushing piece 13 of the front mold 10 to move horizontally, the traveling block 24 is matched with the lower mold plate 22 to form a lower cavity, the lower cavity and the upper cavity of the upper mold plate 12 form an injection mold cavity together, and then the mold is subjected to injection molding; after the injection molding is completed, the front mold 10 and the rear mold 20 are opened, and during the opening of the mold, along with the continuous upward movement of the front mold 10, the row pushing member 13 of the front mold 10 first drives the row block 24 to translate in the opposite direction so as to reset, after the row block 24 is reset to the original position, the needle bar 152 of the elastic needle mechanism 15 loses contact with the inclined ejecting member 23 of the rear mold 20, the inclined ejecting member 23 loses the pushing force of the needle bar 152 to reset, as shown in fig. 2, while the inclined ejecting member 23 is reset to the row block 24, the inclined ejecting member 23 ejects the injection molded product, and the injection molded product is shown in fig. 5.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an injection mold of front mould bullet needle which characterized in that: the device comprises a front die (10) and a rear die (20) matched with the front die (10), wherein the front die (10) comprises an upper die base (11), an upper die plate (12), a row pushing piece (13), a spring needle guide block (14) and a spring needle mechanism (15), the upper die plate (12), the row pushing piece (13) and the spring needle guide block (14) are fixedly arranged on the upper die base (11), the upper die plate (12) is provided with an upper die cavity, the spring needle guide block (14) is arranged at the side position of the upper die plate (12), and the spring needle mechanism (15) is arranged at the position of the spring needle guide block (14);

the rear die (20) comprises a lower die seat (21), a lower die plate (22), an inclined ejecting piece (23) and a slide block (24) which is matched with the lower die plate (22) to form a lower cavity, the lower die plate (22) is fixedly arranged on the lower die seat (21), the inclined ejecting piece (23) is obliquely arranged on the lower die seat (21) in a sliding manner along an X axis, and the slide block (24) is arranged on the lower die seat (21) in a sliding manner along a Y axis in the horizontal direction; when the die is closed, the elastic needle mechanism (15) pushes the inclined ejecting piece (23) away from the slide block (24), the slide pushing piece (13) drives the slide block (24) to translate, the slide block (24) is matched with the lower template (22) to form a lower die cavity, and the upper die cavity and the lower die cavity of the upper template (12) form an injection molding die cavity together.

2. The injection mold of the front mold pogo pin as set forth in claim 1, wherein: the rear die (20) comprises an inclined rod (25), an inclined ejector piece (23) is fixedly installed at one end of the inclined rod (25), the other end of the inclined rod (25) is arranged at an inclined plane of the upper die base (11), the elastic needle mechanism (15) pushes the inclined ejector piece (23), and the inclined ejector piece (23) and the inclined rod (25) are along the inclined plane to deviate.

3. The injection mold of the front mold pogo pin as set forth in claim 2, wherein: the elastic needle mechanism (15) comprises a pressure spring (151) and a needle rod (152), a flange is arranged at the upper end of the needle rod (152), the lower end of the needle rod (152) is in contact with the inclined ejecting piece (23) when the needle rod is assembled, a guide hole is formed in the elastic needle guide block (14), the lower end of the needle rod (152) penetrates through the guide hole, the diameter of the flange is larger than the aperture of the guide hole, one end of the pressure spring (151) is abutted to the upper die base (11), and the other end of the pressure spring (151) is abutted to the flange of the needle rod (152).

4. The injection mold of the front mold pogo pin as set forth in claim 1, wherein: the slide block (24) is provided with an inclined T-shaped groove (241), and the slide pushing piece (13) is provided with an inclined T-shaped lug (131) matched with the inclined T-shaped groove (241).