CN212366399U

CN212366399U - Injection molding spare autogenous cutting runner mould of connector

Info

Publication number: CN212366399U
Application number: CN202021621476.4U
Authority: CN
Inventors: 倪晓杨; 倪圣建; 吴建竹; 许海波; 肖则鹏; 马欢
Original assignee: Zhejiang Hefeng Technology Co ltd
Current assignee: Zhejiang Hefeng Technology Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-01-15
Anticipated expiration: 2030-08-06

Abstract

The utility model relates to an injection molding piece autogenous cutting runner mould of connector, including back mould backup pad, back mould frame, back mould backing plate, a plurality of springs, back template, front formword, annotate the flitch, be formed with the model chamber between back template and the front formword, be provided with the material flow channel who is linked together with the model chamber between back template and the front formword, be provided with on annotating the flitch and annotate the material hole, be provided with the through-hole that is used for connecting material flow channel and notes material hole on the front formword, the junction activity that corresponds model chamber and material flow channel on the back template is provided with cuts the runner spare, should cut and be provided with the dead lever on the runner spare, this dead lever passes back template, back mould backing plate in proper order and connects in the back mould backup pad, cut the runner spare on be provided with the runner hole that cuts that is used for communicateing model chamber and material flow. The utility model has the advantages of simple structure, stable and reliable performance and high production efficiency.

Description

Injection molding spare autogenous cutting runner mould of connector

Technical Field

The utility model relates to a connector technical field, concretely relates to injection molding autogenous cutting runner mould of connector.

Background

A Flexible Printed Circuit Board (FPC) is a Printed Circuit Board made of a Flexible insulating base material (mainly, polyimide or a polyester film), and has many advantages that a rigid Printed Circuit Board does not have. For example, it can be freely bent, rolled, folded. The FPC can be used for greatly reducing the volume of electronic products, and is suitable for the development of the electronic products in the directions of high density, miniaturization and high reliability. Therefore, the FPC is widely applied to the fields or products of aerospace, military, mobile communication, laptop computers, computer peripherals, PDAs, digital cameras and the like. The interface component for connecting the flexible circuit board is a flexible circuit board connector, commonly known as an FPC connector. FPC connector is including gluing the core, flip, the terminal piece, the welding piece, the gluey core of this connector, flip is the injection molding, glue the core, flip is in the manufacturing process, must use injection mold, however, the current injection mold's that is used for gluing the core, flip structural design is unreasonable, glue the core, flip when the drawing of patterns, glue the core, flip tears easily, thereby lead to gluing the core, flip's yields is lower, the production efficiency of this connector has been influenced greatly, and this injection mold still has the structure complicacy, the insecure defect of performance.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance is reliable, the injection molding autogenous cutting runner mould of the high connector of production efficiency.

In order to realize the purpose, the utility model discloses an injection molding piece self-cutting sprue die of connector, which comprises a rear die supporting plate, a rear die frame movably arranged on the rear die supporting plate, a rear die backing plate which is linked and arranged on the rear die frame, a plurality of springs arranged between the rear die supporting plate and the rear die backing plate in a rectangular array, a rear die plate arranged on the rear die backing plate, a front die plate arranged on the rear die plate, and a material injection plate arranged on the front die plate, wherein a die cavity is formed between the rear die plate and the front die plate, a material flow channel communicated with the die cavity is arranged between the rear die plate and the front die plate, the material injection plate is provided with a material injection hole, the front die plate is provided with a through hole for connecting the material flow channel and the material injection hole, the rear die plate is movably provided with a cutting sprue piece corresponding to the connection part of the die cavity and the material flow channel, and the cutting sprue piece is provided with a fixed rod, the fixed rod sequentially penetrates through the rear template and the rear template base plate and is connected to the rear template supporting plate, and a sprue cutting hole for communicating the model cavity with the material flow channel is formed in the sprue cutting piece.

The beneficial effect of above-mentioned structure is: the rear template is provided with the gate cutting piece, and when the connector is demolded, the gate cutting piece can automatically cut off the connection part of the gate, so that the injection molding piece of the connector can be completely demolded, and the improvement of the yield of the injection molding piece of the connector is facilitated. When the die is removed, the compressed spring releases pressure, the spring pushes the rear die plate away, and the die cavity and the gate cutting hole of the gate cutting piece are staggered, so that the gate connecting part can be automatically cut off by the gate cutting piece. Therefore, the automatic sprue die for the injection molding part of the connector has the advantages of simple structure, stable and reliable performance and high production efficiency.

Particularly, a V-shaped guide cutting surface is arranged on one side of the cutting gate piece corresponding to the cutting gate hole, and the guide cutting surface is in transition connection between the material flowing channel and the cutting gate hole. The design has the direction blank face that is the V type on cutting the runner piece, and preceding template and back template are when the drawing of patterns, and the runner junction can be cut off fast to the direction blank face, can avoid the injection molding of connector to be torn because of the drawing of patterns to be favorable to improving the yields of this connector injection molding, thereby can improve the production efficiency of this connector.

Particularly, the rear die supporting plate is provided with positioning grooves corresponding to the springs respectively, one end of each spring is clamped in each positioning groove, and the other end of each spring abuts against the lower end face of the rear die base plate. The spring is clamped in the positioning groove on the rear mold supporting plate, so that the assembly of the spring, the rear mold supporting plate and the rear mold backing plate is facilitated.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an internal structure diagram of the embodiment of the present invention.

Fig. 3 is an assembly view of the sprue cut-off member and the rear mold plate according to the embodiment of the present invention.

Fig. 4 is a cross-sectional view of a gate member according to an embodiment of the present invention.

Fig. 5 is a perspective view of a rear mold support plate according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 5, an embodiment of the present invention is a self-cutting gate mold for injection molding parts of a connector, including a rear mold supporting plate 10, a rear mold frame 11 movably disposed on the rear mold supporting plate 10, a rear mold backing plate 12 linked to the rear mold frame 11, a plurality of springs disposed between the rear mold supporting plate 10 and the rear mold backing plate 12 in a rectangular array, a rear mold plate 13 disposed on the rear mold backing plate 12, a front mold plate 14 disposed on the rear mold plate 13, and a material injection plate 15 disposed on the front mold plate 14, wherein a mold cavity 100 is formed between the rear mold plate 13 and the front mold plate 14, a material flow channel 101 communicated with the mold cavity 100 is disposed between the rear mold plate 13 and the front mold plate 14, a material injection hole 151 is disposed on the material injection plate 15, a through hole for connecting the material flow channel 101 and the material injection hole 151 is disposed on the front mold plate 14, a movable cutting gate 16 is disposed on the rear mold plate 13 corresponding to a connection position of the mold cavity 100 and the material flow channel 101, the cut gate piece 16 is provided with a fixing rod 17, the fixing rod 17 sequentially passes through the rear mold plate 13 and the rear mold backing plate 12 and is connected to the rear mold supporting plate 10, and the cut gate piece 16 is provided with a cut gate hole 161 for communicating the mold cavity 100 with the material flow channel 101.

As shown in fig. 4, a V-shaped guiding blanking surface 162 is disposed on the cutting gate member 16 at a side corresponding to the cutting gate hole 161, and the guiding blanking surface 162 is transitionally connected between the flow channel 101 and the cutting gate hole 161. The design has the direction blank face that is the V type on cutting the runner piece, and preceding template and back template are when the drawing of patterns, and the runner junction can be cut off fast to the direction blank face, can avoid the injection molding of connector to be torn because of the drawing of patterns to be favorable to improving the yields of this connector injection molding, thereby can improve the production efficiency of this connector. As shown in fig. 5, the rear mold supporting plate 10 is provided with positioning grooves 102 corresponding to the springs, one end of each spring is engaged in the positioning groove 102, and the other end of each spring abuts against the lower end surface of the rear mold backing plate 12. The spring is clamped in the positioning groove on the rear mold supporting plate, so that the assembly of the spring, the rear mold supporting plate and the rear mold backing plate is facilitated.

The rear template is provided with the gate cutting piece, and when the connector is demolded, the gate cutting piece can automatically cut off the connection part of the gate, so that the injection molding piece of the connector can be completely demolded, and the improvement of the yield of the injection molding piece of the connector is facilitated. When the die is removed, the compressed spring releases pressure, the spring pushes the rear die plate away, and the die cavity and the gate cutting hole of the gate cutting piece are staggered, so that the gate connecting part can be automatically cut off by the gate cutting piece. Therefore, the automatic sprue die for the injection molding part of the connector has the advantages of simple structure, stable and reliable performance and high production efficiency.

Claims

1. The utility model provides an injection molding autogenous cutting runner mould of connector which characterized in that: the self-cutting sprue die comprises a rear die supporting plate, a rear die frame movably arranged on the rear die supporting plate, a rear die base plate which is arranged on the rear die frame in a linkage manner, a plurality of springs which are arranged between the rear die supporting plate and the rear die base plate in a rectangular array manner, a rear die plate arranged on the rear die base plate, a front die plate arranged on the rear die plate, and a material injection plate arranged on the front die plate, wherein a die cavity is formed between the rear die plate and the front die plate, a material flowing channel communicated with the die cavity is arranged between the rear die plate and the front die plate, a material injection hole is formed in the material injection plate, a through hole for connecting the material flowing channel with the material injection hole is formed in the front die plate, a cutting sprue piece is movably arranged at the position, corresponding to the connection part of the die cavity and the material flowing channel, on the cutting sprue piece, and a fixing rod is arranged on the cutting sprue piece and sequentially penetrates through the rear die supporting plate and the rear, and the sprue cutting part is provided with a sprue cutting hole for communicating the model cavity with the material flow channel.

2. The injection-molded piece autogenous cutting gate mold of a connector according to claim 1, wherein: and a V-shaped guide cutting surface is arranged on one side of the cutting gate piece corresponding to the cutting gate hole, and the guide cutting surface is in transition connection between the material flowing channel and the cutting gate hole.

3. The injection-molded piece autogenous cutting gate mold of the connector according to claim 1 or 2, wherein: the back mould backup pad on correspond each spring punishment and be provided with the constant head tank respectively, the one end block of spring in the constant head tank, the other end of spring contradict on the lower terminal surface of back mould backing plate.