CN216068467U

CN216068467U - Die set

Info

Publication number: CN216068467U
Application number: CN202122640120.6U
Authority: CN
Inventors: 阳维友; 陈浩; 林宝生
Original assignee: Xinshengxin Precision Technology Xiamen Co ltd
Current assignee: Xinshengxin Precision Technology Xiamen Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-18
Anticipated expiration: 2031-10-29

Abstract

The application discloses mould relates to mould technical field, and its technical scheme includes: locate the movable mould fixed body in the frame to and locate the cover half fixed body on the movable mould fixed body, the movable mould fixed body includes back die carrier bottom plate, square iron, backing plate, push pedal, movable mould bedplate and movable mould benevolence by lower supreme setting, the cover half fixed body includes cover half benevolence, cover half bedplate and the preceding die carrier bottom plate by lower supreme setting, by supreme thimble bottom plate and the thimble panel of being provided with down between the two square irons on the fixed body of cover half, movable mould benevolence on the movable mould fixed body includes half runner, the spout has been seted up in the movable mould bedplate, set up the spacing subassembly of limited brake shoe plate position in the spout of movable mould bedplate and between the push pedal, this application can improve annular part and link to each other with the core when using, difficult drawing of patterns and cause the annular part the condition of damage to appear.

Description

Die set

Technical Field

The application relates to the technical field of molds, in particular to a mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification.

In the production process of the injection mold, a general mold comprises a movable mold fixing body and a fixed mold fixing body arranged on the movable mold fixing body, wherein the movable mold fixing body comprises a rear mold frame bottom plate, square irons, a base plate, a push plate, a movable mold base plate and a movable mold core which are arranged from bottom to top, the fixed mold fixing body comprises a fixed mold core, a fixed mold base plate and a front mold frame bottom plate which are arranged from bottom to top, an ejector pin bottom plate and an ejector pin panel are arranged between the two square irons on the mold frame bottom plate from bottom to top, the ejector pin bottom plate is connected with the ejector pin panel through bolts, the rear mold frame bottom plate, the ejector pin panel, the ejector pin bottom plate and the push plate are connected through a set guide pillar, a mold core is arranged between the movable mold core, the movable mold base plate and the push plate, the movable mold core comprises a half flow passage, the fixed mold core comprises the other half flow passage and a front mold hidden rubber opening arranged at two sides of the other half flow passage, and the mold core is vertically arranged on the push plate, the top end of the mold core extends to the position, corresponding to the front mold hidden glue opening of the fixed mold core, of the movable mold core, the ejector pin is vertically arranged on the ejector pin bottom plate, the upper end of the ejector pin is fixedly connected with the flow channel, when the annular part needs to be demolded, the rear mold base plate, the square iron, the base plate, the push plate, the movable mold base plate and the movable mold core can be lowered firstly, and then the ejector pin bottom plate is pushed to enable the ejector pin to jack the flow channel, so that the annular part is driven to be demolded.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the mold is opened, the ejector pins jack the flow channel to drive the annular part to be demolded, the annular part is possibly connected with the mold core and is not easy to demold, and the annular part is damaged, so that the problem is to be further improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the condition that the annular part links to each other with the core, be difficult for the drawing of patterns and cause the annular part to appear damaging, this application provides a mould.

The application provides a mould adopts following technical scheme:

a die comprises a movable die fixing body arranged on a frame and a fixed die fixing body arranged on the movable die fixing body, the movable mould fixing body comprises a rear mould base plate, square iron, a base plate, a push plate, a movable mould base plate and a movable mould core which are arranged from bottom to top, the fixed die fixing body comprises a fixed die core, a fixed die base plate and a front die frame bottom plate which are arranged from bottom to top, a thimble bottom plate and a thimble panel are arranged between the two square irons on the fixed die body from bottom to top, the movable mold core on the movable mold fixing body comprises a half flow passage, a thimble is vertically arranged on the thimble panel, the upper end of the thimble is connected with the half flow passage of the movable mould core, a mould core is arranged among the movable mould core, the movable mould base plate and the push plate, a sliding groove is formed in the movable die base plate, and a limiting component for limiting the position of the brake die base plate is arranged between the sliding groove of the movable die base plate and the push plate.

Through adopting above-mentioned technical scheme, when needs carry out the drawing of patterns with the annular part, earlier follow the frame with the movable mould fixed body and down, then drive thimble bottom plate along the extending direction rebound of guide pillar, with thimble jack-up, thereby make the thimble with the half runner jack-up on the movable mould benevolence, again with push pedal and core toward descending and movable mould bedplate separation, realize the separation of annular part and core, the spacing subassembly of setting can restrict the position of movable mould bedplate, separate to certain degree when push pedal and movable mould bedplate, the push pedal can drive the movable mould bedplate and down together, thereby can further realize the corresponding movable mould bedplate rebound of annular part, realize the separation of annular part and movable mould bedplate, it links to each other with the core to improve the annular part, difficult drawing of patterns and cause the annular part the condition that damages to appear.

Optionally, the limiting assembly comprises a limiting screw arranged in the sliding groove, the bottom of the sliding groove in the movable mold base plate is provided with a communicating groove, one side, close to the movable mold base plate, of the pushing plate on the movable mold fixing body is provided with a threaded hole, the tip end of the limiting screw is in threaded connection with the threaded hole in the pushing plate, and the head of the limiting screw is arranged in the sliding groove in a sliding mode.

Through adopting above-mentioned technical scheme, in the most advanced of the spacing screw pole portion that sets up and the push pedal, can realize being connected of push pedal and movable mould bedplate, in the head of spacing screw slided and locates the spout, can realize that the push pedal descends certain displacement and makes core and annular part separation back, drives the movable mould bedplate and descends downwards, makes annular part produce for the ascending displacement of movable mould bedplate, realizes the separation of movable mould bedplate and annular part.

Optionally, the size of the sliding groove is matched with the size of the head of the limiting screw, and the size of the communicating groove is consistent with the size of the rod part of the limiting screw.

Through adopting above-mentioned technical scheme, the head that can make limit screw slides in the spout, can realize the separation of core and annular part through the big or small looks adaptation of the size of the spout that sets up and limit screw's head, and the size of the intercommunication groove that sets up is unanimous with limit screw's pole portion size, can realize limit screw's head card in the spout bottom, realizes that the push pedal drives the movable mould bedplate and moves down together.

Optionally, a chamfer is arranged at the sliding chute opening on the moving die base plate.

Through adopting above-mentioned technical scheme, the fillet that sets up can make things convenient for the spacing screw to put into the spout.

Optionally, the core comprises a core upper portion and a core lower portion, and the core upper portion is arranged in a cylindrical shape with a cross section gradually decreasing from bottom to top.

Through adopting above-mentioned technical scheme, the core upper portion of setting is the cylinder setting that the cross section diminishes gradually from bottom to top, can make things convenient for core upper portion and movable mould bedplate to separate.

Optionally, the bottom of core lower part is provided with the fixture block, the one end that the core was kept away from to the fixture block is connected with the push pedal.

Through adopting above-mentioned technical scheme, the bottom of core lower part is provided with the fixture block with push pedal fixed connection, can make the core card in the push pedal, realizes that the push pedal drives the core and toward descending, realizes the separation of core and annular part.

Optionally, a compression spring is arranged on the guide pillar between the base plate on the movable mold fixed body and the ejector pin panel, one end of the compression spring is fixedly connected with the base plate, and the other end of the compression spring is connected with the ejector pin panel.

By adopting the technical scheme, the compression spring can play a role in buffering and damping the thimble bottom plate and the thimble panel when the thimble bottom plate and the thimble panel drive the thimble to descend.

Optionally, a positioning protrusion is disposed on a surface of the push plate on the movable mold fixing body, and a positioning groove adapted to the positioning protrusion is disposed on the movable mold base plate.

Through adopting above-mentioned technical scheme, the spacing recess and the spacing lug looks adaptation of setting can make the better block of movable mould bedplate and push pedal, improve the stability between movable mould bedplate and the push pedal.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the tip of the limiting screw is fixedly connected with the push plate, the head of the limiting screw is arranged in the sliding groove in a sliding manner, after the thimble jacks up a part of the half-flow channel, the part of the push plate below the push plate descends to realize the separation of the annular part and the mold core, the head of the limiting screw slides in the sliding groove to the position of the bottom of the sliding groove, and then the push plate drives the movable mold base plate to move downwards to realize the upward movement of the annular part relative to the movable mold base plate and realize the demolding of the annular part;

2. the compression spring arranged between the thimble bottom plate and the base plate on the lower guide pillar can play a role in buffering and damping the thimble panel and the thimble push plate when the thimble panel and the thimble push plate descend.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional structural view of an embodiment of the present application;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Reference numerals: 2. a movable mold fixed body; 21. a rear mould base plate; 211. a thimble base plate; 212. a thimble panel; 213. a thimble; 214. a guide post; 215. a compression spring; 22. square iron; 23. a base plate; 24. pushing the plate; 241. a core; 242. the upper part of the mold core; 243. the lower part of the mold core; 244. a clamping block; 245. positioning the bump; 25. a movable mould seat plate; 251. a chute; 252. a limiting screw; 253. a communicating groove; 26. a movable mould core; 261. a half runner; 3. fixing the die fixing body; 31. fixing a mold core; 311. the other half of the flow channel; 312. a front mould hidden glue opening; 32. a fixed die base plate; 33. and a front mould frame bottom plate.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a mold, referring to fig. 1 and 2, comprising a movable mold fixing body 2 arranged on a rack and a fixed mold fixing body 3 arranged on the movable mold fixing body 2, wherein the movable mold fixing body 2 comprises a rear mold base bottom plate 21, square irons 22, a backing plate 23, a push plate 24, a movable mold base plate 25 and a movable mold core 26 which are arranged from bottom to top, the rear mold base bottom plate 21, an ejector pin panel 212, the ejector pin bottom plate 211 and the push plate 24 are connected through a set guide post 214, the ejector pin bottom plate 211 and the ejector pin panel 212 are arranged between the two square irons 22 on the rear mold base bottom plate 21 from bottom to top, the ejector pin bottom plate 211 and the ejector pin panel 212 are connected through bolts, an ejector pin 213 is vertically arranged on the ejector pin panel 212, a compression spring 215 is arranged on the guide post 214 between the backing plate 23 and the ejector pin panel 212, one end of the compression spring 215 is fixedly connected with the backing plate 23, the other end of the compression spring 215 is fixedly connected with the ejector pin panel 212, the moving core 26 includes a half flow channel 261, and the upper end of the thimble 213 is fixedly connected to the bottom of the half flow channel 261 of the moving core 26.

In this embodiment, referring to fig. 2, the fixed mold fixing body 3 includes a fixed mold core 31, a fixed mold base plate 32 and a front mold base plate 33, the fixed mold core 31 includes another half runner 311 and a front mold latent rubber opening 312 disposed on two sides thereof, a mold core 241 is vertically disposed on the push plate 24, the mold core 241 includes a mold core upper portion 242 and a mold core lower portion 243, the mold core upper portion 242 is a cylinder whose cross section gradually decreases from bottom to top, separation of the mold core upper portion 242 and the movable mold base plate 25 can be facilitated, a fixture block 244 is disposed at a bottom end of the mold core lower portion 243, one end of the fixture block 244 far away from the mold core 241 is fixedly connected to the push plate 24, and a top end of the mold core 241 extends to a position on the movable mold core 26 corresponding to the front mold latent rubber opening 312 of the fixed mold core 31.

Referring to fig. 3, when a part is poured, firstly, an injection molding material is poured into the runner, and then flows into the front mold latent glue openings 312 on the two sides of the runner, when the part needs to be demolded, the whole movable mold fixing body 2 descends to be separated from the fixed mold fixing body 3, and then the ejector pin panel 212 and the ejector pin bottom plate 211 are driven to drive the ejector pins 213 to move upwards, so that the ejector pins 213 jack up the runner and drive the annular part connected with the runner opening to move upwards, so as to realize the demolding of the annular part, but only one side of the annular part is connected with the runner, and the other side of the annular part may be connected with the mold core 241, so that the annular part is not easy to be demolded, and the annular part is damaged.

Referring to fig. 2, in order to improve the condition that the annular part is connected with the core 241 and the annular part is damaged due to the fact that demolding is not easy to happen, a sliding groove 251 is formed in the movable mold base plate 25, a limit screw 252 for limiting the position of the movable mold base plate 25 is arranged between the sliding groove 251 of the movable mold base plate 25 and the push plate 24, a communicating groove 253 is formed in the bottom of the sliding groove 251 in the movable mold base plate 25, a threaded hole is formed in one side, close to the movable mold base plate 25, of the push plate 24, the tip end of the limit screw 252 is connected in the threaded hole in the push plate 24 in a threaded mode, the head of the limit screw 252 is arranged in the sliding groove 251 in a sliding mode, the push plate 24 is driven to descend, and the core 241 can be separated from the annular part.

Meanwhile, the head of the limit screw 252 slides in the sliding groove 251 of the movable mold base plate 25, and when the head of the limit screw 252 slides to the bottom end of the sliding groove 251, the push plate 24 continues to descend to drive the movable mold base plate 25 to descend, so that the movable mold base plate 25 is separated from the annular part, the annular part is demolded, the annular part is prevented from being connected with the mold core 241, and the annular part is not easy to be demolded to cause damage.

In addition, spout 251 mouth department on movable mould bedplate 25 is provided with the radius angle, can make things convenient for in limit screw 252 puts into spout 251, the size of the spout 251 of setting and limit screw 252's head size looks adaptation, the head card that can realize limit screw 252 slides in spout 251 and in spout 251, the size of intercommunication groove 253 is unanimous with the pole portion size of limit screw 252, the head card that can make limit screw 252 at spout 251 top, prevent that limit screw 252 from slipping off in spout 251, and be located the upper portion of intercommunication groove 253, it descends together to realize push pedal 24 drive movable mould bedplate 25, thereby can realize the separation of annular part and movable mould bedplate 25.

The implementation principle of a mold in the embodiment of the application is as follows: during demoulding, the movable mould fixed body 2 descends to be separated from the fixed mould fixed body 3, the thimble base plate 211 and the thimble panel 212 are jacked up, the thimble 213 jacks up the runner, the push plate 24 and the push plate 24 continue to descend to the rear mould frame base plate 21 as a whole, the core 241 in the push plate 24 descends along with the push plate 24, thereby realizing the separation of the core 241 and the annular part, meanwhile, the head of the limit screw 252 connected with the push plate 24 and the movable mold base plate 25 slides in the slide groove 251, when the head of the limit screw 252 slides to the bottom of the sliding groove 251, the head of the limit screw 252 is clamped in the sliding groove 251, the push plate 24 continuously descends to drive the movable mold base plate 25 to descend together, the separation of the annular part and the movable mold base plate 25 is realized, therefore, the situation that the annular part is connected with the mold core 241 when being demolded, so that the annular part is not easy to demold and is damaged is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A mold, characterized in that: the die comprises a movable die fixing body (2) arranged on a rack and a fixed die fixing body (3) arranged on the movable die fixing body (2), wherein the movable die fixing body (2) comprises a rear die base plate (21), square iron (22), a base plate (23), a push plate (24), a movable die base plate (25) and a movable die core (26) which are arranged from bottom to top, the fixed die fixing body (3) comprises a fixed die core (31), a fixed die base plate (32) and a front die base plate (33) which are arranged from bottom to top, an ejector pin base plate (211) and an ejector pin panel (212) are arranged between the two square iron (22) on the fixed die fixing body (3) from bottom to top, the movable die core (26) on the movable die fixing body (2) comprises a half flow channel (261), an ejector pin (213) is vertically arranged on the ejector pin panel (212), and the upper end of the ejector pin (213) is connected with the half flow channel (261) of the movable die core (26), a mold core (241) is arranged among the movable mold core (26), the movable mold base plate (25) and the push plate (24), a sliding groove (251) is formed in the movable mold base plate (25), and a limiting component for limiting the position of the movable mold base plate (25) is arranged between the sliding groove (251) of the movable mold base plate (25) and the push plate (24).

2. A mold as defined in claim 1, wherein: the limiting assembly comprises a limiting screw (252) arranged in a sliding groove (251), a communicating groove (253) is formed in the bottom of the sliding groove (251) in the movable mold base plate (25), a threaded hole is formed in one side, close to the movable mold base plate (25), of a push plate (24) on the movable mold fixed body (2), the tip end of the limiting screw (252) is in threaded connection with the threaded hole in the push plate (24), and the head of the limiting screw (252) is arranged in the sliding groove (251) in a sliding mode.

3. A mold as in claim 2, wherein: the size of the sliding groove (251) is matched with the size of the head of the limiting screw (252), and the size of the communicating groove (253) is consistent with the size of the rod of the limiting screw (252).

4. A mold as defined in claim 1, wherein: and a chamfer angle is arranged at the position of a sliding groove (251) on the movable mould seat plate (25).

5. A mold as defined in claim 1, wherein: the core (241) comprises a core upper part (242) and a core lower part (243), wherein the core upper part (242) is arranged in a cylinder with a gradually-reduced cross section from bottom to top.

6. A mould according to claim 5, characterized in that: a clamping block (244) is arranged at the bottom end of the lower portion (243) of the mold core, and one end, away from the mold core (241), of the clamping block (244) is fixedly connected with the push plate (24).

7. A mold as defined in claim 1, wherein: a compression spring (215) is arranged on a guide post (214) between a base plate (23) on the movable die fixing body (2) and the ejector pin panel (212), one end of the compression spring (215) is fixedly connected with the base plate (23), and the other end of the compression spring (215) is connected with the ejector pin panel (212).

8. A mold as defined in claim 1, wherein: the surface of a push plate (24) on the movable mold fixing body (2) is provided with a positioning lug (245), and the movable mold base plate (25) is provided with a positioning groove matched with the positioning lug (245).