CN108748908B

CN108748908B - Injection mold core-pulling mechanism of automobile lamp shell

Info

Publication number: CN108748908B
Application number: CN201810968269.7A
Authority: CN
Inventors: 章武杰
Original assignee: Ningbo Simu Automobile Mould Co ltd
Current assignee: Ningbo Simu Automobile Mould Co ltd
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2020-05-22
Anticipated expiration: 2038-08-23
Also published as: CN108748908A

Abstract

The invention discloses an injection mold core pulling mechanism of an automobile lamp shell, which relates to an injection mold of automobile parts and solves the problems that all positioning blocks cannot be formed at one time by the existing injection mold, so that the subsequent processing is required after the product is formed, and the production cost is increased.

Description

Injection mold core-pulling mechanism of automobile lamp shell

Technical Field

The invention relates to an injection mold for automobile parts, in particular to a core-pulling mechanism for an injection mold for an automobile lamp shell.

Background

Most of automobile lamp shells of automobile lamps are formed by injection molding through injection molds, the mold opening process is summarized as follows, and after a product is formed in a mold cavity in the mold, a movable mold moves to be separated from a fixed mold, so that the mold cavity is opened, and the product is taken out.

The automobile lamp shell shown in the attached figure 1 is formed by injection molding, a positioning block for mounting the transparent dust cover is arranged in the automobile lamp shell, and a positioning groove for connecting with an automobile body is further formed in the automobile lamp shell.

Because the locating piece setting just is provided with a plurality ofly on the inner wall of car lamp body, all locating pieces of the unable one shot forming of current injection mold lead to needing to carry out the post processing after the product shaping, have increased manufacturing cost.

Disclosure of Invention

The invention aims to provide an injection mold core-pulling mechanism for an automobile lamp shell, which can be used for molding a positioning block at one time during injection molding without post-processing, so that the production cost of the automobile lamp shell is reduced.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides an injection mold mechanism of loosing core of car lamp shell which characterized in that, including a plurality of shaping pieces that are used for the shaping locating piece, drive the control post that the shaping piece was loosed core with shaping piece one-to-one, each the control post all sets firmly on a control cabinet, the control cabinet removes and drives the shaping piece through control assembly and looses core.

Through adopting above-mentioned technical scheme, drive the control cabinet through control assembly and remove, the control cabinet drives the control post and removes, and the control post drives the shaping piece again and looses core to the shaping locating piece can be with the one-time molding of locating piece in the process of moulding plastics, need not the later stage and processes, has reduced the manufacturing cost of car lamp body.

Preferably, the control assembly comprises a control oil cylinder and a force transmission arm which is connected with a piston rod of the control oil cylinder and drives the control seat to move, the telescopic direction of the piston rod of the control oil cylinder is perpendicular to the moving direction of the control column, one end, close to the control seat, of the force transmission arm is provided with an inclined sliding groove, and the control seat is provided with a sliding block which slides along the sliding groove to drive the control seat to move.

By adopting the technical scheme, the piston rod of the control oil cylinder drives the force transmission arm to move, then the sliding block slides in the sliding groove, so that the control seat is driven to move, and the moving direction of the control seat is perpendicular to the telescopic direction of the piston rod.

Preferably, the control seat is provided with a first mounting groove for mounting the sliding block, the sliding block comprises a mounting part embedded in the first mounting groove and a sliding part sliding in the sliding groove, and the cross section of the sliding part is of a T-shaped structure.

Through adopting above-mentioned technical scheme, through the design that includes installation department and the portion of sliding at the piece that slides, the installation department imbeds first mounting groove inside and fixes afterwards, and at the removal in-process of control seat, the portion of sliding can slide along the groove that slides to drive the control seat and remove.

Preferably, the control seat is provided with a plurality of second mounting grooves for the control columns to penetrate, and the control columns penetrate into the second mounting grooves and are fixedly connected with the control seat.

Through adopting above-mentioned technical scheme, penetrate the second mounting groove through making the control post and fix, can improve the connectivity of control post and control seat, can make the control seat drive the control post better and remove.

Preferably, the control seat is provided with a through hole penetrating through the control seat on the bottom surface of the second mounting groove, one side of the through hole far away from the second mounting groove is provided with an expansion cavity, a step is formed between the expansion cavity and the through hole, a threaded hole is formed in one side surface of the control column facing to the bottom surface of the mounting groove, and the control column penetrates into the mounting groove and then is connected with the control seat through a bolt.

Through adopting above-mentioned technical scheme, the back in the control post penetrates the second mounting groove, and the bolt penetrates and the screw thread is twisted in the screwed hole of control post from the perforation to realize being connected of control seat and control post, the nut of bolt can offset with the step, avoids taking place between control seat and the control post not hard up.

Preferably, the cross section of one end of the control column penetrating into the second mounting groove is of a non-circular structure.

Through adopting above-mentioned technical scheme, the cross section through making the control post penetrate second mounting groove one end is non-circular structure, when rotatory bolt got into the screw hole, can restrict the control post and take place the rotation in a circumferential direction to make things convenient for being connected of control post and control seat.

Preferably, the forming block abuts against the inner wall of the car lamp shell, a side face, away from the positioning block, of the forming block is provided with a sliding block which is obliquely arranged relative to the moving direction of the control column, a sliding groove for sliding the sliding block is formed in the control column, and when the control column moves towards one side of the control seat, the forming block is separated from the positioning block on the car lamp shell.

Through adopting above-mentioned technical scheme, when the control post slided, thereby the slider can slide in the spout and drive the shaping piece and remove to keeping away from the locating piece direction, treats shaping piece and locating piece separation back, and the control post can drive the shaping piece and take out and leave.

Preferably, a guide sleeve is sleeved on the outer side of the control column and fixedly arranged on the movable mold.

Through adopting above-mentioned technical scheme, through being provided with guide sleeve, guide sleeve can play the guide effect to the control post at the in-process that slides of control post for the sliding of control post plays the guide effect.

Preferably, the control seat is provided with a butt joint block which is abutted against the guide sleeve at the edge of the opening of the second mounting groove, and the butt joint block is fixedly arranged on the movable die through a bolt.

Through adopting above-mentioned technical scheme, through being provided with the butt joint piece, can avoid the in-process that slides of control post, guide sleeve removes along with the control post in the lump.

In conclusion, the invention has the following beneficial effects:

the piston rod through the control cylinder drives the force transmission arm to move, makes the sliding block slide at the inslot that slides afterwards to drive the control cabinet and remove, and the moving direction of control cabinet is mutually perpendicular with the flexible direction of piston rod, and the control cabinet drives all control posts and carries out synchronous motion, and the control post drives the shaping piece again and looses core, thereby the shaping locating piece can be in the one-off molding of injection molding process with the locating piece, need not the later stage and processes, has reduced the manufacturing cost of car lamp body.

Drawings

FIG. 1 is a schematic structural view of a vehicle lamp housing;

FIG. 2 is an overall schematic view of a vehicle lamp housing core-pulling mechanism;

FIG. 3 is a schematic structural diagram of a first core pack;

fig. 4 is an exploded view of the first core pack;

FIG. 5 is an exploded view of a forming insert;

FIG. 6 is a cross-sectional view of a forming insert;

FIG. 7 is a schematic view of a seismic mass on a forming insert;

FIG. 8 is a first schematic structural diagram of a second core pack;

FIG. 9 is an enlarged view taken at A in FIG. 8;

FIG. 10 is an exploded view of the control pod;

FIG. 11 is a cross-sectional view of the control seat at the second mounting groove;

FIG. 12 is an exploded view of the control seat and control column;

FIG. 13 is an enlarged view at B in FIG. 12;

fig. 14 is a second schematic structural view of the second core pack.

In the figure, 11, positioning grooves; 12. positioning blocks; 2. a first core group; 21. forming the insert; 211. a molding section; 212. a guide portion; 2121. mounting grooves; 2122. a guide groove; 213. a second drive face; 214. a guide groove; 2141. a second sliding groove; 2142. a first sliding groove; 22. a control block; 221. a first drive face; 222. a guide block; 2221. a limiting part; 2222. a fixed part; 23. a drive spring; 24. a guide post; 241. a guide section; 242. a threaded segment; 25. a butting tray; 26. vibrating the block; 261. a guide slope; 3. a second core group; 31. forming a block; 311. a slider; 32. a control column; 321. a chute; 322. a threaded hole; 33. a control seat; 331. a sliding block; 3311. an installation part; 3312. a sliding part; 332. a first mounting groove; 333. a second mounting groove; 334. perforating; 335. a diameter expanding cavity; 336. a step; 34. a control component; 341. controlling the oil cylinder; 342. a force transmission arm; 3421. a sliding groove; 35. a guide sleeve; 36. and a butt joint block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, the invention provides an injection mold core-pulling mechanism of an automobile lamp shell, which is used for an injection mold with two cavities in one mold and comprises a first core-pulling group 2 and a second core-pulling group 3.

Referring to fig. 1 and 3, the first core assembly 2 includes two molding inserts 21 for molding the two side housing positioning grooves 11 and a control block 22 for controlling the molding inserts 21 to be close to or far from the positioning groove 11.

Referring to fig. 4 and 5, two first driving surfaces 221 respectively abutting against the two molding inserts 21 are symmetrically provided at one end of the control block 22 close to the molding insert 21, the molding insert 21 has a second driving surface 213 mutually engaged with the first driving surface 221, and a driving spring 23 for forcing the molding insert 21 to move in the direction of the first driving surface 221 is provided in the molding insert 21.

The control block 22 is provided with guide blocks 222 at two first driving surfaces 221, and the forming insert 21 is provided with guide grooves 214 for the guide blocks 222 to slide at the second driving surface 213. The guiding block 222 is a T-shaped structure and includes a limiting portion 2221 and a fixing portion 2222, and the guiding groove 214 includes a second sliding groove 2141 for the limiting portion 2221 to slide and a first sliding groove 2142 for the fixing portion 2222 to slide.

Referring to fig. 5 and 6, the molding insert 21 includes a molding portion 211 and a guiding portion 212, a mounting groove 2121 for the driving spring 23 to be disposed is disposed on the guiding portion 212, a guiding groove 2122 is disposed at a middle position of a bottom surface of the mounting groove 2121, a guiding column 24 for guiding the sliding of the guiding portion 212 is mounted in the guiding groove 2122 in a penetrating manner, the guiding column 24 is fixedly disposed on the fixed mold, a abutting disc 25 is connected to the guiding column 24 in a threaded manner, the driving spring 23 is wound on an outer side of the guiding column 24, one end of the driving spring 23 abuts against the bottom surface of the mounting groove 2121, and the other end of the driving spring abuts against the abutting disc 25.

The guide post 24 includes a threaded section 242 and a guide section 241, the abutting disk 25 is threaded on the threaded section 242, and the guide section 241 is slidably inserted into the guide slot 2122.

Referring to fig. 7, a vibrating block 26 is protruded from a side surface of the mold insert 21 away from the direction of pulling the control block 22, the vibrating block 26 is detachably connected to the guide portion 212, and both sides of the vibrating block 26 in the core pulling direction of the mold insert 21 have inclined guide slopes 261.

Referring to fig. 8, the second core-pulling group 3 includes a plurality of forming blocks 31 for forming the positioning blocks 12, control columns 32 corresponding to the forming blocks 31 one by one for driving the forming blocks 31 to perform core-pulling, a control base 33 for fixing the control columns 32 and driving the control columns 32 to move synchronously, and a control assembly 34 for controlling the movement of the control base 33.

Referring to fig. 8 and 9, the control assembly 34 includes a control cylinder 341 and a force transmission arm 342 connected to a piston rod of the control cylinder 341 and driving the control seat 33 to move, a telescopic direction of the piston rod of the control cylinder 341 is perpendicular to a moving direction of the control column 32, an inclined sliding groove 3421 is formed at one end of the force transmission arm 342 close to the control seat 33, and a sliding block 331 sliding along the sliding groove 3421 to drive the control seat 33 to move is disposed on the control seat 33.

Referring to fig. 10, the control seat 33 is provided with a first mounting groove 332 for mounting the sliding block 331 thereon, the sliding block 331 includes a mounting portion 3311 embedded in the first mounting groove 332 and a sliding portion 3312 sliding in the sliding groove 3421, wherein the cross section of the sliding portion 3312 is a T-shaped structure.

Referring to fig. 11, the control seat 33 is provided with a plurality of second mounting grooves 333 into which the control posts 32 are inserted, and a through hole 334 penetrating through the control seat 33 is formed on the bottom surface of the second mounting groove 333, a diameter expanding cavity 335 is formed on a side of the through hole 334 away from the second mounting groove 333, and a step 336 is formed between the diameter expanding cavity 335 and the through hole 334.

Referring to fig. 12, the cross section of the end of the control post 32 penetrating into the second mounting groove 333 is a waist-shaped structure, and a side of the control post 32 facing the bottom surface of the mounting groove 2121 is provided with a threaded hole 322, after the control post 32 penetrates into the mounting groove 2121, the control seat 33 and the control post 32 are connected by a bolt, and at this time, the nut of the bolt can abut against the step 336.

Referring to fig. 2 and 13, the forming block 31 abuts against the inner wall of the lamp housing, a side surface of the forming block 31 away from the positioning block 12 is provided with a sliding block 311 which is obliquely arranged relative to the moving direction of the control column 32, the control column 32 is provided with a sliding groove 321 for the sliding block 311 to slide, and when the control column 32 moves towards one side of the control seat 33, the forming block 31 is separated from the positioning block 12 on the lamp housing.

Referring to fig. 14, a guide sleeve 35 is further sleeved outside the control column 32, the guide sleeve 35 is fixedly arranged on the movable mold, an abutting block 36 abutting against the guide sleeve 35 is arranged at the edge of the opening of the second mounting groove 333 of the control seat 33, and the abutting block 36 is fixedly arranged on the movable mold through a bolt.

The use working condition is as follows:

after a product is molded, the control cylinder 341 drives the control seat 33 to move through the transmission arm 342, the control column 32 drives the molding block 31 to perform core pulling, so that the molding block 31 is separated from the positioning block 12, then the movable mold moves to be separated from the fixed mold, the movable mold drives the control seat 33 to move together, at this time, the driving spring 23 can drive the molding insert 21 to move towards the first driving surface 221 of the control seat 33 and slide along the sliding block 331, the vibrating block 26 is firstly separated from a vibrating groove arranged on the fixed mold, so that vibration can be generated in the core pulling process of the molding insert 21, the molding insert 21 can be better separated from the positioning groove 11, and after the molding part 211 of the molding insert 21 is completely separated from the positioning groove 11, the core pulling of the vehicle lamp housing is completed.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides an injection mold mechanism of loosing core of car lamp shell, its characterized in that, including a plurality of shaping piece (31) that are used for shaping locating piece (12), drive shaping piece (31) with shaping piece (31) one-to-one and go on control post (32) of loosing core, each control post (32) all sets firmly on a control seat (33), control seat (33) move and drive shaping piece (31) through control assembly (34) and loose core, control assembly (34) link to each other and drive control seat (33) and carry out the biography arm of force (342) that removes including control cylinder (341) and with the piston rod of control cylinder (341), the flexible direction of control cylinder (341) piston rod is perpendicular with the direction of movement of control post (32), pass arm of force (342) and offer the groove of sliding (3421) of slope near the one end of control seat (33), thereby be provided with on control seat (33) along the groove of sliding (3421) internal slipping to move and drive control seat (33) and advance A sliding block (331) moving in rows.

2. The injection mold core pulling mechanism of the automobile lamp shell as claimed in claim 1, wherein a first mounting groove (332) for mounting the sliding block (331) is formed in the control seat (33), the sliding block (331) comprises a mounting portion (3311) embedded in the first mounting groove (332) and a sliding portion (3312) sliding in the sliding groove (3421), and the cross section of the sliding portion (3312) is of a T-shaped structure.

3. The injection mold core pulling mechanism of the automobile lamp shell as claimed in claim 1, wherein the control seat (33) is provided with a plurality of second mounting grooves (333) for the control column (32) to penetrate through, and the control column (32) penetrates into the second mounting grooves (333) and is fixedly connected with the control seat (33).

4. The injection mold core pulling mechanism for the automobile lamp housing as claimed in claim 3, wherein the control seat (33) is provided with a through hole (334) penetrating through the control seat (33) at the bottom surface of the second mounting groove (333), one side of the through hole (334) far away from the second mounting groove (333) is provided with a diameter expanding cavity (335), a step (336) is formed between the diameter expanding cavity (335) and the through hole (334), one side of the control column (32) facing the bottom surface of the mounting groove (2121) is provided with a threaded hole (322), and after the control column (32) penetrates into the mounting groove (2121), the control seat (33) is connected with the control column (32) through a bolt.

5. An injection mold core pulling mechanism for automotive lamp housings as claimed in claim 4, wherein the cross section of one end of the control post (32) penetrating into the second mounting groove (333) is of a non-circular structure.

6. The injection mold core pulling mechanism of the automobile lamp shell is characterized in that the molding block (31) is abutted against the inner wall of the automobile lamp shell, a side face, away from the positioning block (12), of the molding block (31) is provided with a sliding block (311) which is obliquely arranged relative to the moving direction of the control column (32), a sliding groove (321) for the sliding block (311) to slide is formed in the control column (32), and when the control column (32) moves towards one side of the control seat (33), the molding block (31) is separated from the positioning block (12) on the automobile lamp shell.

7. The injection mold core pulling mechanism of the automobile lamp shell as claimed in claim 5, characterized in that a guide sleeve (35) is sleeved outside the control column (32), and the guide sleeve (35) is fixedly arranged on the movable mold.

8. The injection mold core pulling mechanism of the automobile lamp shell as claimed in claim 7, wherein the control seat (33) is provided with a butting block (36) which is butted with the guide sleeve (35) at the edge of the opening of the second mounting groove (333), and the butting block (36) is fixedly arranged on the movable mold through a bolt.