CN214000418U

CN214000418U - Side core-pulling structure of copper bar injection mold

Info

Publication number: CN214000418U
Application number: CN202022945245.5U
Authority: CN
Inventors: 戴柏名; 陈斌
Original assignee: Ruisheng New Energy Technology Guangdong Co ltd
Current assignee: Ruisheng New Energy Technology Guangdong Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-20
Anticipated expiration: 2030-12-10

Abstract

The utility model belongs to the technical field of injection mold, especially, disclose a copper bar injection mold's side structure of loosing core, set up first side core, second side core and third side core on injection mold's movable mould including sliding, be equipped with a plurality of oblique guide pillars on injection mold's the cover half, first side core, second side core and third side core loose core slider and corresponding through the side respectively the oblique guide pillar clearance fit, first side core, second side core, third side core the cover half benevolence of cover half with five people of movable mould enclose and establish into the die cavity that is used for acceping the copper bar, first side core is located the lower portion of bending top of copper bar, the second side core is located on the horizontal part of copper bar, third side core butt the portion of bending on the copper bar. The utility model discloses a slide in the mould and set up three kinds of side cores, one of them side core butt copper bar makes the even rubber coating of copper bar that the secondary was bent, improves product quality, the smooth drawing of patterns.

Description

Side core-pulling structure of copper bar injection mold

Technical Field

The utility model belongs to the technical field of injection mold, especially, relate to a copper bar injection mold's side structure of loosing core.

Background

Insert molding is a molding method in which a previously prepared insert of a different material is placed in a mold, and then a molten material is injected, and the molten material and the insert are joined and solidified to form an integrated product.

When a metal piece with a simple structure is subjected to injection molding, the metal piece is directly placed in a cavity of a mold to be subjected to injection molding and glue coating molding, the ejector pin is used for directly ejecting after mold opening, a product can be subjected to demolding, and when side bulge or side recess is required to be formed after injection molding and glue coating for a copper bar with a complex structure, a common injection mold cannot meet the molding requirement of the common injection mold, especially for the copper bar which is bent for multiple times and has a softer material, the copper bar is required to be subjected to glue coating at the bending part and also required to be subjected to injection molding and glue coating together with hardware such as nuts and the like, an irregular glue coating product with the side bulge or side recess of a plastic body is formed, and the copper bar cannot be subjected to direct demolding after glue coating and the glue coating requirement is higher (the copper bar cannot be deformed during injection molding, the.

Therefore, the inventors have endeavored to design a side core pulling structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a copper bar injection mold's side structure of loosing core sets up three kinds of side cores through sliding in the mould, and one of them side core butt copper bar makes the even rubber coating of copper bar that the secondary was bent, improves product quality, the drawing of patterns smoothly.

The utility model provides a copper bar injection mold's side structure of loosing core, sets up first side core, second side core and third side core on injection mold's movable mould including sliding, be equipped with a plurality of oblique guide pillars on injection mold's the cover half, first side core, second side core and third side core are respectively through the side loose core slider with correspond oblique guide pillar clearance fit, first side core, second side core, third side core the cover half benevolence of cover half with five people of movable mould enclose and establish into the die cavity that is used for acceping the copper bar, first side core is located the portion top of bending down of copper bar, second side core is located on the horizontal part of copper bar, third side core butt the portion of bending up of copper bar.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, the quantity of die cavity is two and the two symmetry sets up, the quantity of first side core, second side core and third side core respectively with the quantity of die cavity is the same, two the die cavity interval sets up between two first side cores, two the second side core and two the third side core all sets up the interval side by side.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, first side core is close to the protruding arch and the boss that are equipped with two cylinder shapes of interval on the terminal surface of die cavity, the boss is located first side core edge.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, first side core bottom is close to the corner of die cavity is equipped with a breach.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, second side core is close to the protruding a plurality of bulges, adjacent four that are equipped with in interval on the terminal surface of die cavity the bulge encloses to establish and forms a columniform.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, both ends face and being close to about third side core be equipped with a side groove on the terminal surface of die cavity, the copper bar butt the side groove.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, the third side core is close to the interval is equipped with two reference columns, two on the terminal surface of die cavity the reference column is located side groove bottom.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, the slope is equipped with the confession on the slider is pulled core to the side the through-hole that the guide pillar passed to one side, be equipped with on the movable mould board of movable mould with the terminal constant head tank that matches that corresponds of guide pillar to one side.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, the interval is equipped with two sets of locating pins on the slider is pulled core to the side, the through-hole is located two sets ofly between the locating pin.

As the utility model discloses copper bar injection mold's side core pulling structure's an improvement, the inclination of oblique guide pillar is less than 10 degrees.

Compared with the prior art, the utility model discloses copper bar injection mold's side structure of loosing core sets up first side core through sliding in the mould, second side core and third side core, first side core is located the lower top of bending of copper bar, second side core is located the horizontal part of copper bar, form the side structure of rubber coating product, the portion of bending on the third side core butt copper bar, prevent that the copper bar from exposing (electric contact region promptly) rubber coating or long deckle edge, three kinds of side core cooperations make the even rubber coating of copper bar that the secondary was bent, and the product quality is improved, and smooth drawing of patterns of messenger's product is realized.

Description of the drawings:

FIG. 1 is a sectional view of the fixed mold of the present invention;

FIG. 2 is a perspective view of the movable mold of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an exploded perspective view of three side core-pulling mechanisms on the movable mold of the present invention;

FIG. 5 is an enlarged view at B in FIG. 4;

fig. 6 is a perspective enlarged view of the encapsulated product of the present invention.

Illustration of the drawings:

1. the fixed die comprises a fixed die, 11, a fixed die base, 12, a fixed die plate, 13, a fixed die core, 2, a movable die, 21, a movable die base, 22, an ejection mechanism, 23, a movable die plate, 231, a positioning groove, 24, a movable die core, 3, an inclined guide pillar, 4, a rubber-coated product, 41, a copper bar, 411, a horizontal part, 412, an upper bending part, 413, a lower bending part, 42, a plastic body, 421, a connecting column, 422, a cavity, 5, a first side core-pulling slider, 51, a first side core, 511, a protrusion, 512, a notch, 6, a second side core-pulling slider, 61, a second side core, 611, a protrusion, 7, a third side core-pulling slider, 71, a third side core, 711, a side groove, 7111 and a positioning column.

Detailed Description

The following embodiments of the present invention will be specifically explained with reference to the accompanying drawings, which are only used for reference and illustration, and do not limit the scope of the present invention.

Referring to fig. 1 to 6, a side core-pulling structure of a copper bar injection mold comprises two first side core-pulling mechanisms (not labeled), two second side core-pulling mechanisms (not labeled), two third side core-pulling mechanisms (not labeled) and a plurality of inclined guide pillars 3, wherein the two first side core-pulling mechanisms, the two second side core-pulling mechanisms and the two third side core-pulling mechanisms are all slidably arranged on a movable mold 2 of the injection mold, the plurality of inclined guide pillars 3 are arranged on a fixed mold 1 of the injection mold and are movably matched with the three side core-pulling mechanisms, in the embodiment, because the number of the first side core-pulling mechanisms, the number of the second side core-pulling mechanisms and the number of the third side core-pulling mechanisms are respectively the same as the number of cavities of the injection mold, the movable mold 2 and the fixed mold 1 are closed to form two symmetrical cavities (not shown), the cavity 3 is used for accommodating a copper bar 41, and the two cavities are arranged between the two first side, two second side core pulling mechanisms and two third side core pulling mechanisms are arranged side by side at intervals, in the embodiment, the copper bar 41 is provided with a horizontal portion 411, one end of the horizontal portion 411 is upwards and vertically bent to form an upper bending portion 412, the other end of the horizontal portion 411 is downwards and vertically bent to form a lower bending portion 413, the upper bending portion 412 and the lower bending portion 413 are vertically arranged, a plastic body 42 is formed after the copper bar 41 is encapsulated by rubber, a plurality of cavities 422 are arranged on the front side of the plastic body 42, the four adjacent cavities 422 are connected through a connecting column 421, the rear side of the upper bending portion 412 is exposed out of the plastic body 42, the rear side of the upper bending portion 412 is an electrical contact area of the copper bar 41, the lower end of the lower bending portion 413 is exposed out of the plastic body 42, and the lower end of the lower bending portion 413 is another electrical contact area of the copper bar 41.

Referring to fig. 1 and 2, the fixed mold 1 includes a fixed mold base 11, a fixed mold plate 12 and a fixed mold core 13, the fixed mold plate 12 is stacked below the fixed mold base 11, the plurality of inclined guide pillars 3 are fixed on the fixed mold plate 12, an inclination angle of the plurality of inclined guide pillars 3 is smaller than 10 degrees, and the fixed mold core 13 is located at the bottom of the fixed mold plate 12.

Referring to fig. 1 and 2, the movable mold 2 includes a movable mold base 21, an ejector 22, two supporting plates (not labeled), a movable mold plate 23 and a movable mold core 24, the movable mold base 21 is fixed on the injection molding machine, the two supporting plates are respectively fixed at two ends of the upper surface of the movable mold base 21, the movable mold plate 23 is fixed on the two supporting plates in an overlapping manner, the movable mold plate 23 is provided with a positioning slot 231 corresponding to the end of the inclined guide post 3, the ejector 22 is located between the two supporting plates, the ejector 22 includes an ejector push plate (not labeled), an ejector fixing plate (not labeled) and a plurality of ejectors (not shown), the ejector fixing plate and the ejector push plate are arranged between the movable mold plate 23 and the movable mold base 21 in an overlapping manner, the ejectors are fixed on the ejector push plate and sequentially pass through the ejector fixing plate, the movable mold plate 23 and the movable mold core 24, the ejectors are used for ejecting the encapsulated product 4 after injection molding, the movable die core 24 is embedded on the die joint surface of the movable die plate 23.

Referring to fig. 2 to 5, since the two cavities of the present embodiment are symmetrical, the structure of the side core-pulling mechanism of the present embodiment is symmetrical, which is illustrated by taking the left cavity in fig. 2 and 4 as an example, three sides of the left cavity are respectively provided with a first side core-pulling mechanism, a second side core-pulling mechanism and a third side core-pulling mechanism, the first side core-pulling mechanism is located at the left side of the left cavity 3, the first side core-pulling mechanism includes a first side core-pulling slider 5 and a first side core 51, the first side core-pulling slider 5 is movably matched with the corresponding oblique guide pillar 3, the first side core 51 is fixed on the first side core-pulling slider 5, the first side core 51 is located above the lower bending portion 413 of the copper bar 41, two cylindrical protrusions 511 and a boss (not labeled) are protruded on the end surface of the first side core 51 close to the cavity at intervals, the boss is located at the edge of the first side core 51, a notch 512 is arranged at a corner of the bottom of the first side core 51 close to the cavity, the notch 512 is used for forming a 90-degree bent part of the side surface of the plastic body 42, the second side core-pulling mechanism is arranged at the front side of the left cavity, the second side core-pulling mechanism comprises a second side core-pulling slider 6 and a second side core 61, the second side core-pulling slider 6 is movably matched with the corresponding inclined guide post 3, the second side core 61 is fixed on the second side core-pulling slider 6, the second side core 61 is arranged on the horizontal part 411 of the copper bar 41, a plurality of bulges 611 are convexly arranged on the end surface of the second side core 61 close to the cavity at intervals, four adjacent bulges 611 are enclosed to form a cylinder and are used for forming a cavity 422 and a connecting post 421 of the plastic body 42, the third side core-pulling mechanism is arranged at the rear side of the left cavity, the third side core-pulling mechanism comprises a third side core 7 and a third core 71, the third side core-pulling slider 7 is movably matched with the corresponding inclined guide post 3, the third side core 71 is fixed on the third side core-pulling slider 7, the third side core 71 abuts against the upper bending part 412 of the copper bar 41, a U-shaped side groove 711 is arranged on the upper and lower end faces of the third side core 71 and the end face close to the cavity, two positioning columns 7111 are arranged on the end face of the third side core 71 close to the cavity at intervals, the two positioning columns 7111 are positioned at the bottom of the side groove 711, the upper bending part 412 of the copper bar 41 is positioned in the side groove 711 and abuts against the side groove 711, the two positioning columns 7111 extend into a nut of the upper bending part 412, the side groove 711 and the positioning columns 7111 are used for forming an electrical contact area at the upper end of the encapsulated product 4 to prevent the electrical contact area from being encapsulated or long burrs, the first side core 51, the second side core 61, the third side core 71, the fixed core 13 and the movable core 24 are enclosed into the cavity for accommodating the copper bar 41, the first side core 5, the second side core-pulling slider 6 and the third side core 7 are slidably arranged on the movable die plate 23 and are matched with the plurality of guide columns 3, the first side core-pulling slider 5, the second side core-pulling slider 6 and the third side core-pulling slider 7 are all obliquely provided with through holes (not marked) for the inclined guide pillars 3 to penetrate through, the first side core-pulling slider 5, the second side core-pulling slider 6 and the third side core-pulling slider 7 are all provided with two sets of positioning pins (not marked) at intervals, and the through holes on each side core-pulling slider are located between the two sets of corresponding positioning pins.

The utility model discloses copper bar injection mold's side structure of loosing core's theory of operation does: two copper bars 41 are respectively placed into two cavities, a lower bending portion 413 of each copper bar 41 extends into a movable die core 24, a movable die 2 and a fixed die 1 are matched, a plurality of inclined guide pillars 3 extend into a first side core-pulling slide block 5, a second side core-pulling slide block 6 and a third side core-pulling slide block 7, the first side core-pulling slide block 5 drives a first side core 51 to slide above the lower bending portion 413 of the copper bar 41, the second side core-pulling slide block 6 drives a second side core 61 to slide above a horizontal portion 411 of the copper bar 41, the third side core-pulling slide block 7 drives an upper bending portion 412 of a third side core 71 to abut against the copper bar 41, molten plastic is injected into an injection die to fill the whole cavity, after cooling, the first side core 51, the second side core 61 and the third side core 71 are far away from the cavity, and an ejection mechanism 22 ejects an encapsulation product 4.

The utility model discloses copper bar injection mold's side structure of loosing core, set up first side core 51 through sliding in the mould, second side core 61 and third side core 71, first side core 51 is located the portion 413 top of bending down of copper bar 41, second side core 61 is located the horizontal part 411 of copper bar 41, form the side structure of rubber coating product 4, the portion 412 of bending on third side core 71 butt copper bar 41, prevent the exposed part (electric contact region promptly) rubber coating or long deckle edge of copper bar, three kinds of side cores (be first side core 51, second side core 61 and third side core 71) cooperation make the even rubber coating of copper bar 41 that the secondary was bent, improve product quality, make the smooth drawing of patterns of product.

The above disclosure is only for the preferred embodiment of the present invention, and the scope of the right protection of the present invention cannot be limited thereby, and therefore, the equivalent changes made in the claims of the present invention still belong to the scope covered by the present invention.

Claims

1. The utility model provides a copper bar injection mold's side structure of loosing core, its characterized in that sets up first side core, second side core and third side core on injection mold's movable mould including sliding, be equipped with a plurality of oblique guide pillars on injection mold's the cover half, first side core, second side core and third side core loose core slider and corresponding through the side respectively oblique guide pillar clearance fit, first side core, second side core, third side core the cover half benevolence of cover half with five of movable mould enclose and establish into the die cavity that is used for acceping the copper bar, first side core is located the portion top of bending down of copper bar, second side core is located on the horizontal part of copper bar, third side core butt the portion of bending up of copper bar.

2. The side core pulling structure of the copper bar injection mold according to claim 1, wherein the number of the cavities is two, the two cavities are symmetrically arranged, the number of the first side cores, the number of the second side cores and the number of the third side cores are respectively the same as the number of the cavities, the two cavities are arranged between the two first side cores at intervals, and the two second side cores and the two third side cores are arranged side by side at intervals.

3. The side core pulling structure of the copper bar injection mold according to claim 1, wherein two cylindrical protrusions and a boss are convexly arranged on the end surface of the first side core close to the cavity at intervals, and the boss is located at the edge of the first side core.

4. The side core pulling structure of the copper bar injection mold according to claim 3, wherein a notch is formed in the bottom of the first side core, the notch being close to a corner of the cavity.

5. The side core pulling structure of the copper bar injection mold according to claim 1, wherein a plurality of protruding portions are convexly arranged on the end surface of the second side core close to the cavity at intervals, and four adjacent protruding portions are arranged in a surrounding manner to form a cylinder.

6. The side core pulling structure of the copper bar injection mold according to claim 1, wherein a side groove is formed in the upper end surface and the lower end surface of the third side core and the end surface close to the cavity, and the copper bar is abutted against the side groove.

7. The side core pulling structure of the copper bar injection mold according to claim 6, wherein two positioning columns are arranged on the end surface of the third side core close to the cavity at intervals, and the two positioning columns are located at the bottom of the side groove.

8. The side core pulling structure of the copper bar injection mold according to claim 1, wherein a through hole for the inclined guide post to pass through is formed in the side core pulling slider in an inclined manner, and a positioning groove correspondingly matched with the tail end of the inclined guide post is formed in a movable mold plate of the movable mold.

9. The side core pulling structure of the copper bar injection mold according to claim 8, wherein two sets of positioning pins are arranged on the side core pulling slider at intervals, and the through hole is located between the two sets of positioning pins.

10. The side core pulling structure of the copper bar injection mold according to claim 1, wherein an inclination angle of the inclined guide post is less than 10 degrees.