CN213675189U

CN213675189U - Traceless injection mold for electronic product

Info

Publication number: CN213675189U
Application number: CN202021832357.3U
Authority: CN
Inventors: 林燕华
Original assignee: Dongguan Yonghui Electroacoustic Technology Co ltd
Current assignee: Dongguan Yonghui Electroacoustic Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-07-13
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses an electron product does not have trace injection mold, including the die block of moulding plastics, the die block one side of moulding plastics is fixed with the locating lever, and moulds plastics the die block outer wall and set up flutedly to be equipped with the shaping die body in the recess on the die block of moulding plastics, the outside cover of locating lever is equipped with the moulding-die mould, the die block fixed orifices has been seted up to the die block outer wall of moulding plastics, the die body fixed orifices has been seted up to the outer wall of shaping die body, and inside the inserting of die body fixed orifices and die block fixed orifices is equipped with the work piece ejector pin to the one end of work piece ejector pin is. The inner convex column of the traceless injection mold of the electronic product has a movable structure, so that the molding mold body is extruded by the movable convex column in the using process, and the mold body can be subjected to hole opening.

Description

Traceless injection mold for electronic product

Technical Field

The utility model relates to an injection mold technical field specifically is an electron product does not have trace injection mold.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can be classified into injection molding and die casting. An injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die.

When the present injection molding material enters into the shaping chamber of mould from the feed inlet gradually, generally open the hole site for the shaping, can set up a projection on the mould, when making injection molding material meet the projection on the mould, the reposition of redundant personnel becomes two strands of injection molding material and flow through the back along the both sides of this projection and join at the opposite side of projection, after the cooling shaping, the position shaping that corresponds the projection place of mould on the product goes out the trompil, however, the weld mark appears in the department of joining very easily after cooling in two strands of injection molding material that join again after the reposition of redundant personnel, especially under the condition of black material, the weld mark on the product that has the highlight requirement is more obvious, the appearance of weld mark can influence product appearance, lead to the product defective rate to improve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electron product does not have trace injection mold to the weld mark of the material of moulding plastics that provides in solving the background art is more obvious, and the appearance of weld mark can influence the product outward appearance, leads to the problem that the product defective rate improves.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electron product does not have trace injection mold, includes the die block of moulding plastics, the die block one side of moulding plastics is fixed with the locating lever, and moulds plastics the die block outer wall and set up flutedly to be equipped with the shaping die body in the recess on the die block of moulding plastics, the outside cover of locating lever is equipped with the moulding-die mould, the die block fixed orifices has been seted up to the die block outer wall of moulding plastics, the die body fixed orifices has been seted up to the outer wall of shaping die body, and inside the inserting of die body fixed orifices and die block fixed orifices is equipped with the work piece ejector pin to the one end of.

Preferably, the outer wall of the injection molding die is fixed with a feeding pipe, and the outer wall of the injection molding die is also fixed with a first cylinder.

Preferably, the second cylinder is located on a center line of the moving platen.

Preferably, the external shape of the workpiece ejector rod is matched with the internal shape of the die body fixing hole, and the workpiece ejector rod is larger than the thickness of the injection molding bottom die.

Preferably, the outer wall of the forming die body is provided with a through hole, and a fixing screw is arranged in the through hole on the outer wall of the forming die body.

Preferably, the position of the bottom die fixing hole on the injection bottom die corresponds to the position of the die body fixing hole and the position of the molding die body.

Compared with the prior art, the beneficial effects of the utility model are that: the inner convex column of the traceless injection mold of the electronic product has a movable structure, so that the molding mold body is extruded by the movable convex column in the using process, and the mold body can be subjected to hole opening. The device's injection moulding die outer wall's inlet pipe plays the effect of guide, can be with the leading-in moulded die of material in, first cylinder plays the effect of control injection moulding die in addition, make injection moulding die slide on the locating lever, and the second cylinder can promote to remove clamp plate and work piece ejector pin and remove, make the work piece ejector pin can remove in die block fixed orifices and die body fixed orifices, the work piece ejector pin can be followed the die body fixed orifices and stretched out like this, extrude the inside shaping die body of shaping die body.

Drawings

FIG. 1 is a schematic structural view of a traceless injection mold for electronic products of the present invention;

fig. 2 is an enlarged schematic structural view of a position a in fig. 1 of the traceless injection mold for electronic products of the present invention;

fig. 3 is the utility model relates to an electronic product does not have trace injection mold die block side view of moulding plastics.

In the figure: 1. the injection molding die block comprises an injection molding die block body, 2, a positioning rod, 3, an injection molding die, 4, a feeding pipe, 5, a first air cylinder, 6, a second air cylinder, 7, a movable pressing plate, 8, a workpiece ejector rod, 9, a molding die body, 10, a fixing screw, 11, a die block fixing hole, 12 and a die body fixing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a traceless injection mold for electronic products comprises an injection bottom mold 1, wherein one surface of the injection bottom mold 1 is fixed with a positioning rod 2, the outer wall of the injection bottom mold 1 is provided with a groove, a forming mold body 9 is arranged in the groove on the injection bottom mold 1, an injection molding die 3 is sleeved outside the positioning rod 2, the outer wall of the injection molding die 3 is fixed with a feeding pipe 4, the outer wall of the injection molding die 3 is also fixed with a first air cylinder 5, the feeding pipe 4 on the outer wall of the injection molding die 3 of the structure plays a role of guiding materials, the materials can be guided into the forming mold body 9 through the feeding pipe 4, the first air cylinder 5 can drive the injection molding die 3 to move to play a role of controlling the injection molding die 3, the outer wall of the injection bottom mold 1 is provided with a bottom mold fixing hole 11, the position of the bottom mold fixing hole 11 on the injection bottom mold 1 corresponds to the position of the mold body fixing hole 12 and the forming, thus, the workpiece ejector rod 8 can extend out of the bottom die fixing hole 11 and the die body fixing hole 12 and extend into the forming die body 9, the outer wall of the forming die body 9 is provided with the die body fixing hole 12, the workpiece ejector rod 8 is inserted into the die body fixing hole 12 and the bottom die fixing hole 11, one end of the workpiece ejector rod 8 is connected with the movable pressing plate 7, the outer wall of the movable pressing plate 7 is provided with the second air cylinder 6, the second air cylinder 6 is positioned on the central line of the movable pressing plate 7, the second air cylinder 6 of the structure plays a role in controlling the movable pressing plate 7 to enable the movable pressing plate 7 and the workpiece ejector rod 8 to move, the extrusion force of the workpiece ejector rod 8 on the movable pressing plate 7 is balanced, the external shape of the workpiece ejector rod 8 is matched with the internal shape of the die body fixing hole 12, the workpiece ejector rod 8 is larger than the thickness of the injection molding bottom die 1, one end, and work piece ejector pin 8 can stretch out from die body fixed orifices 12, extrudees the inside material of shaping die body 9, and the through-hole has been seted up to the outer wall of shaping die body 9, and is equipped with set screw 10 in the through-hole of the outer wall of shaping die body 9, and the through-hole of the outer wall of the shaping die body 9 of this structure plays the effect that holds set screw 10, can fix shaping die body 9 in die block 1 of moulding plastics through set screw 10.

The working principle is as follows: when using this electron product no trace injection mold, at first with the device setting in suitable place, then it removes at locating lever 2 through first cylinder 5 drive injection mould 3, make injection mould 3 can press on the die block 1 of moulding plastics, later through inlet pipe 4 with the material leading-in to in the shaping die body 9, it is inside until the material is full of shaping die body 9, later start second cylinder 6, it removes to move clamp plate 7 and work piece ejector pin 8 through the drive of second cylinder 6, make work piece ejector pin 8 remove in die block fixed orifices 11 and die body fixed orifices 12, later work piece ejector pin 8 stretches out from die body fixed orifices 12 is inside, extrude the inside material of shaping die body 9, make the material surface form the shrinkage pool, thereby accomplish a series of work.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an electron product does not have trace injection mold, includes injection mold die block (1), its characterized in that: mould plastics die block (1) one side and be fixed with locating lever (2), and mould plastics die block (1) outer wall and set up flutedly to be equipped with shaping die body (9) in the recess on the die block (1) of moulding plastics, the outside cover of locating lever (2) is equipped with injection moulding die (3), die block fixed orifices (11) have been seted up to die block (1) outer wall of moulding plastics, die body fixed orifices (12) have been seted up to the outer wall of shaping die body (9), and inside the inserting of die body fixed orifices (12) and die block fixed orifices (11) is equipped with work piece ejector pin (8) to the one end of work piece ejector pin (8) is connected with moving clamp plate (7), and the outer wall of moving clamp plate (7.

2. The traceless injection mold of claim 1, wherein: the outer wall of the injection molding die (3) is fixed with a feeding pipe (4), and the outer wall of the injection molding die (3) is also fixed with a first cylinder (5).

3. The traceless injection mold of claim 1, wherein: the second air cylinder (6) is positioned on the central line of the movable pressing plate (7).

4. The traceless injection mold of claim 1, wherein: the external shape of the workpiece ejector rod (8) is matched with the internal shape of the die body fixing hole (12), and the workpiece ejector rod (8) is larger than the thickness of the injection molding bottom die (1).

5. The traceless injection mold of claim 1, wherein: the outer wall of the forming die body (9) is provided with a through hole, and a fixing screw (10) is arranged in the through hole in the outer wall of the forming die body (9).

6. The traceless injection mold of claim 1, wherein: the position of the bottom die fixing hole (11) on the injection bottom die (1) corresponds to the positions of the die body fixing hole (12) and the forming die body (9).