CN216359742U

CN216359742U - Pitched roof type LED plastic external member forming die

Info

Publication number: CN216359742U
Application number: CN202122956281.6U
Authority: CN
Inventors: 吴纪炳; 陆建安
Original assignee: Yixing Nanbu Plastic Electronics Co ltd
Current assignee: Yixing Nanbu Plastic Electronics Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-22
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses an inclined top type LED plastic suite forming die which comprises an upper die and a lower die, wherein the upper die comprises an upper die pressing block and an upper die connecting block, the lower die comprises a front die block, a rear die block and a supporting base, the front die block and the rear die block are arranged on the supporting base, a forming groove is formed in the front die block, inclined top grooves are formed in two sides, located on the forming groove, of the front die block, inclined top inserts are arranged in the inclined top grooves in a matched mode, the bottoms of the inclined top inserts are connected with ejector rods, the ejector rods extend downwards and longitudinally to form the front die block and the rear die block, and fixing blocks and butting blocks are arranged between the supporting base and the rear die block. The utility model adopts the inclined top type demoulding way to replace the prior thimble demoulding way, can be suitable for forming and demoulding the LED plastic external member with any structure and specification, thoroughly solves the problem that the prior thimble demoulding is easily limited by the size and the structure of the product, and ensures good production efficiency.

Description

Pitched roof type LED plastic external member forming die

Technical Field

The utility model relates to an LED plastic external member forming technology, in particular to an inclined top type LED plastic external member forming die.

Background

The existing LED external member mold ejection structure generally uses an ejector pin to eject out a plastic product in a molding groove, so that a corresponding position must be reserved for the ejector pin, and the demolding mode has the problems that for some plastic products with special structures or small sizes, the ejector pin cannot be used for ejection due to the limitation of the size or the internal position, so that the molding and demolding of the plastic products are difficult, and the production efficiency is seriously influenced.

Disclosure of Invention

The purpose of the utility model is as follows: in order to overcome the defects in the prior art, the inclined-top LED plastic suite forming die is provided, adopts an inclined-top demolding mode, is suitable for forming and demolding LED plastic suites of any structures and specifications on the basis of not influencing the forming of normal products, and ensures good production efficiency.

The technical scheme is as follows: in order to achieve the purpose, the utility model provides an inclined top type LED plastic suite forming die, which comprises an upper die and a lower die, wherein the upper die comprises an upper die pressing block and an upper die connecting block, the lower die comprises a front module, a rear module and a supporting base, the front module and the rear module are arranged on the supporting base, a forming groove is formed in the front module, inclined top grooves are formed in two sides of the forming groove in the front module, inclined top inserts are arranged in the inclined top grooves in a matching mode, the bottoms of the inclined top inserts are connected with ejector rods, the ejector rods extend downwards and longitudinally to the front module and the rear module, a fixing block and a butt-joint block are arranged between the supporting base and the rear module, the fixing block is fixed on the butt-joint block, the bottoms of the ejector rods are fixed on the fixing block, the butt-joint block is connected to a punch of an injection molding machine, and the punch is used for driving the butt-joint block to ascend, the needle returning columns vertically penetrate through the rear module and the front module upwards, the outer side face of the pitched roof insert is matched with the outer groove face of the pitched roof groove, the inner side face of the pitched roof insert is attached to the inner groove face of the pitched roof groove, and the outer groove face of the pitched roof groove is inclined outwards to guide the pitched roof insert to move obliquely.

Furthermore, return to be provided with the spring part that resets on the needle post, the spring part that resets is located between back module and the fixed block for return to the needle post and the oblique top mold insert can in time automatic re-setting, ensure production technology's smoothness nature.

Further, the pitched roof insert comprises a guide portion and an acting portion, the pitched roof groove comprises a guide groove and an acting groove, and the guide portion and the acting portion are respectively matched in the guide groove and the acting groove.

Further, the length of the backstitch post is equal to the sum of the lengths of the pitched roof insert and the ejector rod, so that the backstitch post and the pitched roof insert can be located on the same horizontal plane, and the backstitch post is prevented from being exposed out of the front module independently.

Furthermore, a positioning column and a positioning groove which are matched with each other are respectively arranged on the front module and the upper pressing block.

Has the advantages that: compared with the prior art, the utility model has the advantages that through the matching arrangement of the pitched roof groove and the pitched roof insert, the inclined roof groove is used for guiding the slant of the pitched roof insert, so that the ascending track of the pitched roof insert is outwards moderately inclined, the inner side surface of the pitched roof insert can gradually clamp the plastic product in the forming groove in the ascending process, the plastic product is clamped out of the forming groove along with the trend to complete the demoulding, the existing thimble demoulding mode is replaced by the pitched roof type demoulding mode, the utility model can be suitable for the forming demoulding of the LED plastic external member with any structure and specification, the problem that the existing thimble demoulding is easily limited by the size and the structure of the product is thoroughly solved, and the good production efficiency is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention in a mold clamping state;

FIG. 2 is a schematic structural view of the present invention in a mold-splitting state;

FIG. 3 is a top view of the front module;

fig. 4 is a schematic view of the pitched roof insert and the lift pins.

Detailed Description

The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the utility model, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.

As shown in fig. 1 to 4, the utility model provides an inclined top type LED plastic external member forming die, which comprises an upper die and a lower die, wherein the upper die comprises an upper die pressing block 4 and an upper die connecting block 5, the lower die comprises a front die block 3, a rear die block 2 and a supporting base 1, the front die block 3 and the rear die block 2 are arranged on the supporting base 1, the front die block 3 is provided with a forming groove 31, the front die block 3 is provided with inclined top grooves 32 at two sides of the forming groove 31, the two inclined top grooves 32 are symmetrically arranged, the inclined top grooves 32 comprise a guide groove 322 and an action groove 321, an inclined top insert 7 is arranged in the inclined top groove 32 in a matching manner, the inclined top insert 7 comprises a guide part 71 and an action part 72, the guide part 71 and the action part 72 are respectively arranged in the guide groove 322 and the action groove 321, the side wall of the guide groove 322 is designed as an inclined plane which inclines outwards, the side wall of the action groove 321 is designed vertically, therefore, the side wall of the guide part 71 is also designed to be an inclined plane which inclines outwards, the inclination angle is 2 degrees, the side wall of the action part 72 is designed to be vertical and can be attached to the action groove 321, the bottom of the inclined ejection insert 7 is connected with the ejector rod 6, the ejector rod 6 longitudinally extends downwards to form the front module 3 and the rear module 2, a fixed block 12 and a butt joint block 11 are arranged between the supporting base 1 and the rear module 2, the fixed block 12 is fixed on the butt joint block 11, the bottoms of the two ejector rods 6 are both fixed on the fixed block 12, the butt joint block 11 is connected on a punch 10 of the injection molding machine, the punch 10 is used for driving the butt joint block 11 to ascend, two needle return columns 9 are symmetrically arranged on the fixed block 12, the needle return columns 9 vertically penetrate through the rear module 2 and the front module 3 upwards, the needle return columns 9 are provided with reset spring parts 8, the reset spring parts 8 are positioned between the rear module 2 and the fixed block 12, the length of the needle return columns 9 is equal to the sum of the lengths of the inclined ejection insert 7 and the ejector rod 6, the front module 3 and the upper pressing block 4 are respectively provided with a positioning column 33 and a positioning groove 41 which are matched with each other.

Based on above-mentioned scheme, be applied to the shaping of LED mould shell product with above-mentioned oblique top formula LED plastics external member forming die in this embodiment, its specific operation flow is:

1) as shown in fig. 1, an upper die is pressed down on a lower die, an upper die pressing block 4 is pressed on a front die block 3, so that die assembly is realized, at the moment, an inclined top insert 7 is just pressed in an inclined top groove 32, an action part 72 of the inclined top insert 7 can be tightly attached to the inner side wall of the inclined top groove 32, a forming groove 31 is in a sealing state under the action of the action part 72, and then material is injected into the forming groove 31 to form an LED plastic shell product 100;

2) when the LED plastic shell product 100 needs to be taken out in a mold splitting manner, as shown in fig. 2, the upper mold is lifted away from the lower mold, at this time, under the action of the injection molding machine, the punch 10 is lifted, so as to drive the butt-joint block 11 and the fixing block 12 to lift, the ejector rod 6 and the return pin 9 are lifted along with the lift, the lift tracks of the ejector rod 6 and the return pin 9 are vertical, the pitched top insert 7 is lifted along the slope with the slope of 2 degrees of the pitched top groove 32, and the movement track of the pitched top insert 7 is inclined upwards and outwards, so that the action part 72 of the pitched top insert 7 is gradually tightened inwards in the lifting process, so that the action parts 72 of the two pitched top inserts 7 have enough inward clamping force in the lifting process, and the LED plastic shell product 100 in the forming groove 31 can be clamped out in a proper position, and the demolding is completed;

3) and finally, taking out the LED plastic shell product 100, wherein the reset spring part 8 is in a contraction state under the blocking of the rear module 2 after the return pin 9 rises, and the fixed block 12 can be flicked downwards due to the elasticity of the reset spring part 8, so that the ejector rod 6, the return pin 9 and the pitched roof insert 7 are reset, and the forming operation can be continuously carried out by the workers.

Claims

1. A pitched roof type LED plastic suite forming die comprises an upper die and a lower die, wherein the upper die comprises an upper die pressing block and an upper die connecting block, the lower die comprises a front die block, a rear die block and a supporting base, the front die block and the rear die block are arranged on the supporting base, and the front die block is provided with a forming groove, and the die is characterized in that pitched roof grooves are arranged on two sides of the forming groove on the front die block, pitched roof inserts are arranged in the pitched roof grooves in a matching manner, the bottoms of the pitched roof inserts are connected with ejector rods, the ejector rods longitudinally extend out of the front die block and the rear die block downwards, a fixing block and a butt-joint block are arranged between the supporting base and the rear die block, the fixing block is fixed on the butt-joint block, the bottoms of the ejector rods are fixed on the fixing block, the butt-joint block is connected to a punch of an injection molding machine, the punch is used for driving the butt-joint block to ascend, and two needle returning columns are arranged on the fixing block, the back needle column vertically penetrates through the rear module and the front module upwards, the outer side face of the pitched roof insert is matched with the outer groove face of the pitched roof groove, the inner side face of the pitched roof insert is attached to the inner groove face of the pitched roof groove, and the outer groove face of the pitched roof groove is inclined outwards to guide the pitched roof insert to move obliquely.

2. The pitched roof type LED plastic suite forming die as claimed in claim 1, wherein a return pin column is provided with a return spring part, and the return spring part is positioned between the rear module and the fixed block.

3. The pitched-roof type LED (light-emitting diode) plastic suite forming die according to claim 1, wherein the pitched-roof insert comprises a guide part and an action part, the pitched-roof groove comprises a guide groove and an action groove, and the guide part and the action part are respectively matched in the guide groove and the action groove.

4. The pitched-roof LED (light-emitting diode) plastic suite forming die as claimed in claim 1, wherein the length of the backsetting column is equal to the sum of the lengths of the pitched-roof insert and the ejector rod.

5. The mold of claim 1, wherein the front mold block and the upper mold pressing block are respectively provided with a positioning column and a positioning groove which are matched with each other.