CN214000419U

CN214000419U - Side core-pulling structure of electrode injection mold

Info

Publication number: CN214000419U
Application number: CN202022945292.XU
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 an electrode injection mold's side structure of loosing core, loose core the slider including sliding a plurality of sides that set up on the movable mould die surface of mould, it is a plurality of the side core on the side slider of loosing core centers on the die cavity setting of mould, one of them the support column is worn to be equipped with in the side activity on loosing core the slider, the support column extends in die cavity and activity butt accept in the support surface of encapsulating of the metalwork of die cavity, slope protruding being equipped with and a plurality of on the cover half die surface of mould the side slider of loosing core corresponds complex guide pillar to one side. The utility model discloses a side structure of loosing core sets up the support column through the activity on the slider is loosed core to the side, supports the support package face of metalwork, and the demolding not only is convenient for can also prevent that the metalwork from warping.

Description

Side core-pulling structure of electrode injection mold

Technical Field

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

Background

The existing hardware (copper material, aluminum material and the like) is soft in material, the in-process of injection molding and rubber coating in a die cavity is extremely easy to deform, the thickness of the hardware is not uniform, particularly, a large-area hardware lithium battery electrode is large in size, the metal deformation is more serious in the rubber coating process, and meanwhile, the hardware rubber coating product is difficult to directly demold due to the fact that screw holes, grooves or bulges and other structures exist on the side surface, so that the complex hardware rubber coating product with uniform thickness of the hardware cannot be prepared in a common direct die opening mode.

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 an electrode injection mold's side structure of loosing core sets up the support column through the activity on the side slider of loosing core, supports the support package face of gluing of metalwork, and the demolding not only is convenient for can also prevent that the metalwork from warping.

In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:

the utility model provides an electrode injection mold's side structure of loosing core, sets up a plurality of sides sliders of loosing core on the movable mould die cavity of mould including sliding, and is a plurality of the side core on the slider of loosing core centers on the die cavity setting of mould, one of them the support column is worn to be equipped with in the activity on the slider of loosing core of side, the support column extends in die cavity and activity butt accept in the support surface of gluing of the metalwork in the die cavity, slope protruding being equipped with and a plurality of on the cover half die cavity of mould the side slider of loosing core corresponds complex guide pillar to one side.

When the plastic injection action on the fixed die is finished and the injection molding pressure maintaining is carried out, the supporting column is far away from the supporting and plastic wrapping surface of the metal piece, and a plastic body partially wrapped on the metal piece is formed in the cavity.

In the process of moulding plastics, the melt contracts because of the cooling, but because the screw rod will continue to move forward slowly, make the fuse-element in the material pipe continue to pour into the die cavity into to the needs (preventing the product shrink) of supplementary goods shrink, call for the pressurize, the product after the pressurize is not only produced more stably, can also adjust the size of product size, deformation such as weld line, sunken, overlap and warpage can not appear again, the utility model discloses utilize the injection pressurize to fill the breach that the support column withdrawed from forming, promptly, when the support column moves back to when the already rubber coating of metalwork is out of the plane, can form the support breach on the metalwork, utilize the pressurize of moulding plastics to supplement the breach that the support column withdrawed from forming.

As the utility model discloses electrode injection mold's side core pulling structure's an improvement, the support column is located to correspond side core side, the support column with correspond the side core is parallel.

As the utility model discloses electrode injection mold's side core pulling structure's an improvement, the support column is by hydro-cylinder drive butt or keep away from metalwork in the die cavity, the hydro-cylinder is fixed set up in corresponding on the slider is loosed core to the side.

As an improvement of the side core-pulling structure of the electrode injection mold, the cavity is used for accommodating the support rubber-coated surface area of the metal piece is formed by the side core and the movable mold core of the mold are enclosed, the side core is slidably arranged in the groove of the movable mold core.

As an improvement of the side core-pulling structure of the electrode injection mold, one of the side core-pulling structure is a notch and another adjacent to the notch on the side core, and the side core is surrounded and arranged to form a groove.

As the utility model discloses electrode injection mold's side core pulling structure's an improvement, at least one the side is loosed core and is equipped with the side on the slider and inlay the post, the side is inlayed the post and is passed the correspondence the side core extends the screw hole of metalwork is downthehole or be close to the metalwork.

As the utility model discloses electrode injection mold's side core pulling structure's an improvement, at least one the side core pulling slider side is equipped with the stopper, should incline core pulling slider one end with correspond side core elastic connection, its other end through a plurality of slide bars with the stopper slides the butt.

As the utility model discloses electrode injection mold's side core pulling structure's an improvement, it is a plurality of the slide bar level is passed and is corresponded side core pulling slider and interval set up.

As the utility model discloses electrode injection mold's side core pulling structure's an improvement, the slide bar end be circular-arc and with spout sliding contact on the stopper, the slide bar with the spout sets up perpendicularly.

As an improvement of the side core-pulling structure of the electrode injection mold, the support column is perpendicular to the supporting rubber coating surface.

Compared with the prior art, the utility model discloses electrode injection mold's side structure of loosing core sets up the support column through the activity on the slider of loosing core in the side, supports the support surface of encapsulating of metalwork, and the demoulding not only is convenient for, can also prevent that the metalwork from warping, makes the thick even of meat behind the metalwork rubber coating, improves product quality.

Description of the drawings:

fig. 1 is a sectional view of an electrode injection mold of the present invention;

fig. 2 is another sectional view of the electrode injection mold of the present invention;

FIG. 3 is a perspective view of the movable mold of the present invention;

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

FIG. 5 is a three-dimensional exploded enlarged view of the third side core pulling mechanism of the present invention;

FIG. 6 is a perspective enlarged view of the injection molded product of the present invention;

fig. 7 is a perspective enlarged view of the metal member of the present invention.

Illustration of the drawings:

1. the die comprises a fixed die, 11, a fixed die plate, 111, an inclined guide post, 12, a fixed die core, 2, a movable die, 21, a movable die plate, 211, a limiting block, 22, a movable die core, 3, a support pillar, 31, an oil cylinder, 4, a first side core-pulling slide block, 41, a first side core, 5, a second side core-pulling slide block, 51, a second side core, 6, a third side core-pulling slide block, 61, a third side core, 62, a spring, 63, a side embedded column, 64, a slide bar, 7, an injection molding product, 71, a metal piece, 711, a support rubber coating surface, 712, an exposed part, 713, an exposed surface, 72, a plastic body, 721 and a protruding part.

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 and 2, a side core-pulling structure of an electrode injection mold comprises a plurality of side core-pulling mechanisms (not marked) slidably disposed in the electrode injection mold, wherein a movable mold 2 of the electrode injection mold comprises a movable mold base (not marked), an ejection mechanism (not marked) for ejecting an injection product, two support plates (not marked), a movable mold plate 21 and a movable mold core 22 embedded on the movable mold plate 21, the ejection mechanism is located between the two support plates, the ejection mechanism comprises a thimble push plate (not marked), a thimble fixing plate (not marked) and a plurality of thimbles (not shown), the thimble fixing plate and the thimble push plate are stacked and disposed between the movable mold plate 21 and the movable mold base, the thimbles are fixed on the thimble push plate and sequentially pass through the thimble fixing plate, the movable mold plate 21 and the movable mold core 22, the thimbles are used for ejecting the injection product 7 after injection molding, and a fixed mold base 1 of the electrode injection mold comprises a fixed mold base (not marked) and a fixed mold base (not stacked from top to bottom), The utility model discloses a take electrode injection molding encapsulation mould of new energy automobile lithium cell as an example and illustrate, in this embodiment, the injection-molded product 7 of the lithium battery is composed of a metal piece 71 (electrode) and a plastic body 72, wherein the metal member 71 is a bent member and is provided with a plurality of nuts, after the metal member 71 is encapsulated with rubber, only the nut holes, the exposed surface 713 and the exposed part 712 are exposed to form an electric contact part, for over-current, the plurality of side core-pulling mechanisms are preferably three side core-pulling mechanisms, in the utility model, one side surface of the metal member 71 with the nut is a stress concentration surface (not shown) of the metal member 71 in the injection molding process, and the reverse surface of the stress concentration surface of the metal member 71 is a supporting adhesive coating surface 711 of the metal member 71.

Referring to fig. 1 to 5, the three side core-pulling mechanisms are specifically a first side core-pulling mechanism (not labeled), a second side core-pulling mechanism (not labeled) and a third side core-pulling mechanism (not labeled), and the first side core-pulling mechanism, the second side core-pulling mechanism and the third side core-pulling mechanism are disposed around the movable mold core 22.

Referring to fig. 3 and 4, the first side core pulling mechanism includes a first side core pulling slider 4, a first side core 41, and an inclined guide post (not shown) fixed on the fixed mold 1 and matched with the first side core pulling slider 4, the first side core pulling slider 4 is slidably disposed at the left end of the movable mold plate 21, the first side core 41 and the first side core pulling slider 4 are fixedly connected and slidably disposed in a groove at the left end of the movable mold core 22, the first side core 41 corresponds to a supporting and glue-coating surface 711 of a metal member 71, in this embodiment, a notch (not labeled) is disposed at the end of the first side core pulling slider 4, a supporting pillar 3 is movably penetrated through the first side core pulling slider 4, the supporting pillar 3 is driven by an oil cylinder 31 to abut against or be away from the metal member 71 in the mold cavity and is perpendicular to the supporting and glue-coating surface 711, in this embodiment, since a force-bearing point of the metal member 71 is mainly concentrated at the nut side, a supporting position of the supporting pillar 3 needs to face away from the nut, therefore, the supporting pillar 3 of the embodiment is located beside the first side core 41, the supporting pillar 3 is parallel to the first side core 41, the oil cylinder 31 is fixed on the first side core-pulling slider 4, the oil cylinder 31 is used for driving the supporting pillar 3 to abut against or be far away from the supporting rubber-coated surface 711 of the metal piece 71, the supporting pillar 3 is arranged on the oil cylinder 31 and horizontally and movably penetrates through the first side core-pulling slider 4, and finally extends into the cavity and movably abuts against the supporting rubber-coated surface 711 of the metal piece 71 in the cavity, when the injection molding action on the fixed mold 1 is completed and the injection molding pressure maintaining is performed, the supporting pillar 3 is far away from the supporting rubber-coated surface 711 of the metal piece 71, and a plastic body 72 partially coated on the metal piece 71 is formed in the cavity.

Referring to fig. 3 and 4, the second side core-pulling mechanism includes a second side core-pulling slider 5, a second side core 51, and an inclined guide post (not shown) fixed on the fixed mold 1 and engaged with the second side core-pulling slider 5, the second side core-pulling slider 5 is slidably disposed at the front end of the movable mold platen 21, the second side core 51 and the second side core-pulling slider 5 are fixedly connected and slidably disposed in a groove at the front end of the movable mold core 22, the second side core 51 corresponds to an exposed surface 713 of the metal member 71, the second side core 51 and a gap on the first side core 41 are surrounded to form a groove (not shown) for molding a protrusion 721 of the plastic body 72, meanwhile, the second side core 51 is also used for abutting against the exposed surface 713 of the metal member 71 to prevent the exposed surface 713, a plurality of side insert posts (not shown) are disposed on the second side core-pulling slider 5, and a part of the side insert posts pass through the second side core 51 and extend into screw holes of the exposed surface 713, part of the side stud forms a plastic groove adjacent to the metal piece 71.

Referring to fig. 1 to 5, the third side core pulling mechanism includes a third side core pulling slider 6, a third side core 61 and an inclined guide post 111 fixed on the fixed mold 1 and matched with the third side core pulling slider 6, the third side core pulling slider 6 is slidably arranged at the right end of the movable mold plate 21, the third side core 61 is located in a groove at the right end of the movable mold core 22, two limiting blocks 211 for limiting the elastic sliding of the third side core pulling slider 6 are arranged beside the third side core pulling slider 6, one end of the third side core pulling slider 6 is elastically connected with the third side core 61 through a spring 62, the other end thereof is slidably abutted against the limiting blocks 211 through a plurality of sliding rods 64, the plurality of sliding rods 64 horizontally penetrate through the third side core pulling slider 6 and are arranged at intervals, the tail end of the sliding rod 64 is arc-shaped and slidably contacts with a sliding groove (not marked) on the limiting blocks 211, the sliding rod 64 is vertically arranged with the sliding groove, a plurality of side embedding posts 63 penetrate through the third side core pulling slider 6, the plurality of side studs 63 penetrate through the third side core 61, and a part of the side studs 63 extend into screw holes of the metal member 71 or are close to the metal member 71 to form injection molding grooves, the region of the mold cavity for accommodating the support rubber coating surface 711 of the metal member 71 is defined by the first side core 41, the second side core 51, the third side core 61 and the movable mold core 22, and the specific structure of the three side cores is determined by the structure of the injection molding product 7 and will not be described in detail herein.

Referring to fig. 1 to 7, the side core-pulling principle of the present invention is: the method comprises the steps of placing a metal piece 71 to be encapsulated in a fixed position of a movable die 2, closing the movable die 2 and a fixed die 1, enabling an oil cylinder 31 to push a support column 3 to abut against a support encapsulating surface 711 of the metal piece 71, injecting molten plastic into a die cavity, withdrawing the support column 3 in advance under the driving of the oil cylinder 31 until the injection and pressure maintaining are not finished, continuously applying injection force to a product by utilizing the pressure maintaining of an injection molding machine, filling the vacant position of the support column 3, achieving the purpose of sealing the gap, completing injection molding, forming an injection product 7, opening the movable die 2, driving three side core-pulling sliders to slide through an inclined guide post 111, keeping the three side cores away from the die cavity, ejecting the injection product 7 by an ejector pin push plate and an ejector pin fixing plate, and taking out the injection product 7.

The utility model discloses electrode injection mold's side structure of loosing core will incline and loose core slider and support column 3 cooperation, support rubber coating face 711 that support column support metalwork 3 that can withdraw from through setting up on the side slider of loosing core, avoids metalwork 71 to warp at the rubber coating in-process, prevents that metalwork 71 from moulding plastics rubber coating back meat thickness inhomogeneous, simultaneously, still makes things convenient for the drawing of patterns.

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 an electrode injection mold's side structure of loosing core, its characterized in that, sets up a plurality of sides on the movable mould die cavity of mould including sliding and looses core the slider, and is a plurality of the side core on the slider is loosed core to the side centers on the die cavity setting of mould, one of them the support column is worn to be equipped with in the side activity of loosing core on the slider, the support column extends in die cavity and activity butt accept in the support surface of gluing of the metalwork of die cavity, slope protruding being equipped with and a plurality of on the cover half die cavity of mould the side the slider of loosing core corresponds complex guide pillar to the side.

2. The side core pulling structure of the electrode injection mold according to claim 1, wherein the supporting columns are located at sides of the corresponding side cores, and the supporting columns are parallel to the corresponding side cores.

3. The electrode injection mold's side core pulling structure of claim 2, wherein the support column is driven by an oil cylinder to abut against or be away from the metal piece in the cavity, and the oil cylinder is fixedly arranged on the corresponding side core pulling slide block.

4. The side core pulling structure of the electrode injection mold according to claim 1, wherein the supporting rubber coating surface area of the cavity for accommodating the metal piece is formed by surrounding the side core and a movable mold core of the mold, and the side core is slidably disposed in a groove of the movable mold core.

5. The side core pulling structure of the electrode injection mold according to claim 1, wherein a notch in one of the side cores and another adjacent side core are surrounded to form a groove.

6. The electrode injection mold's side core pulling structure of claim 1, characterized in that at least one side core pulling slider is provided with a side embedding column, and the side embedding column passes through the corresponding side core and extends into a screw hole of the metal piece or is close to the metal piece.

7. The electrode injection mold's side structure of loosing core according to claim 1, characterized in that, at least one side of loosing core slider is equipped with the stopper, and this side is loosed core slider one end with correspond side core elastic connection, its other end through a plurality of slide bars with the stopper slip butt.

8. The electrode injection mold's side core pulling structure of claim 7, wherein a plurality of the slide bars horizontally pass through corresponding side core pulling sliders and are arranged at intervals.

9. The electrode injection mold's side structure of loosing core according to claim 8, wherein, the slide bar terminal is circular-arc and with spout sliding contact on the stopper, the slide bar with the spout perpendicular setting.

10. The side core pulling structure of the electrode injection mold according to claim 1, wherein the supporting columns are perpendicular to the supporting rubber coating surface.