CN218019939U

CN218019939U - Injection mold is used in production of lithium battery slurry filter shell

Info

Publication number: CN218019939U
Application number: CN202221955515.3U
Authority: CN
Inventors: 汪其江; 郭均
Original assignee: Zhuhai Huanshun Technology Co ltd
Current assignee: Zhuhai Huanshun Technology Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-12-13
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses an injection mold for producing a lithium battery slurry filter shell, which comprises a lower mold seat, an upper mold and a forming mechanism; a lower die base: the middle part of the upper surface of the upper die is provided with a lower die, four corners of the upper surface of the lower die are uniformly provided with guide pillars, the upper surface of the upper die is provided with an upper die base, and four corners of the upper die and the upper die base are provided with guide holes in sliding connection with the guide pillars; a forming mechanism: the die comprises a mounting groove and a core, wherein the mounting groove is arranged in the middle of the lower die, the core is connected in the mounting groove in a sliding manner, and a cavity corresponding to the core is arranged in the middle of the lower surface of the upper die; wherein: the injection mold is characterized in that a sprue bush is arranged in the mounting hole in the middle of the upper mold base, the lower end of the sprue bush is communicated with an injection molding hole in the middle of an upper mold, the forming mechanism further comprises a spring, a T-shaped ejector rod and a limiting cover plate, the injection mold is used for producing the lithium battery slurry filter shell, automatic demolding of a workpiece is facilitated, demolding is more convenient and rapid, and the quality of the workpiece can be guaranteed.

Description

Injection mold is used in production of lithium battery slurry filter shell

Technical Field

The utility model relates to a lithium battery slurry filter produces technical field, specifically is an injection mold is used in production of lithium battery slurry filter shell.

Background

The preparation of the lithium battery positive electrode slurry and the negative electrode slurry comprises a series of technological processes of mutual mixing, dissolving, dispersing and the like between liquid and between liquid and solid materials, and the process is accompanied with changes of temperature, viscosity, environment and the like, in the positive electrode slurry and the negative electrode slurry, the dispersibility and uniformity of granular active substances directly affect the movement of lithium ions between two electrodes of a battery, so that the mixing and dispersing of the slurry of each pole piece material in the production of the lithium ion battery are critical, the quality of the slurry dispersing directly influences the quality of the subsequent production of the lithium ion battery and the performance of a product thereof, therefore, the lithium battery slurry needs to be filtered by a filter when in use, so as to ensure the quality of the slurry, the shell of the filter is generally formed by injection molding of an injection mold, the quality of the shell of the filter directly influences the quality of the shell of the filter, the injection mold of the existing filter shell needs to be manually demolded when in use, most of the molds for automatic demolding adopt ejector rods to demold, dents are easy to leave a workpiece, so that the sealing performance of the shell of the filter shell of the lithium battery is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide an injection mold is used in production of lithium battery thick liquids filter shell, make things convenient for the automatic drawing of patterns of work piece, the drawing of patterns is convenient and fast more, can also guarantee the quality of work piece, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an injection mold for producing a lithium battery slurry filter shell comprises a lower die base, an upper die and a forming mechanism;

a lower die base: the middle part of the upper surface of the upper die is provided with a lower die, four corners of the upper surface of the lower die are uniformly provided with guide pillars, the upper surface of the upper die is provided with an upper die base, and four corners of the upper die and the upper die base are provided with guide holes in sliding connection with the guide pillars;

a forming mechanism: the die comprises a mounting groove and a core, wherein the mounting groove is arranged in the middle of the lower die, the core is connected in the mounting groove in a sliding manner, and a cavity corresponding to the core is arranged in the middle of the lower surface of the upper die;

wherein: be equipped with the sprue bush in the mounting hole at upper die base middle part, the lower extreme of sprue bush and the hole intercommunication of moulding plastics at last mould middle part make things convenient for the automatic drawing of patterns of work piece, and the drawing of patterns is convenient and fast more, can also guarantee the quality of work piece.

Further, forming mechanism still includes T type ejector pin and spacing apron, T type ejector pin sets up in the bottom surface center department of core, and spacing apron sets up in the lower extreme opening part of mounting groove, and the middle part of spacing apron is equipped with in the through-hole that T type ejector pin corresponds, and the lower extreme of T type ejector pin is located the step hole that die holder bottom surface center department set up, and the bottom surface of T type ejector pin and the bottom surface parallel and level of die holder make things convenient for the automatic drawing of patterns.

Furthermore, the upper end movable sleeve of the T-shaped ejector rod is provided with a spring, and the spring is positioned between the mold core and the limiting cover plate and can assist the T-shaped ejector rod and the mold core to reset.

Furthermore, the middle of the left side surface and the middle of the right side surface of the lower die are both provided with a boss, and the middle of the left side surface and the right side surface of the lower die base are both provided with openings corresponding to the bosses, so that the lower die is convenient to limit.

Furthermore, T-shaped pull rods are symmetrically arranged in the left and right of the middle of the upper surface of the lower die base, jacks in sliding connection with the T-shaped pull rods are symmetrically arranged in the left and right of the lower die, and a sliding guiding effect is achieved on the relative movement of the lower die base and the lower die.

Furthermore, cooling channels matched with the cavity are symmetrically arranged in the upper die in the front and back direction, so that the workpiece can be rapidly cooled conveniently.

Furthermore, four corners of the lower die holder and four corners of the upper die holder are provided with fixing holes, so that the lower die holder and the upper die holder can be conveniently installed and fixed.

Compared with the prior art, the beneficial effects of the utility model are that: this injection mold is used in production of lithium battery thick liquids filter housing has following benefit:

1. the lower extreme of T type ejector pin is located the step hole that die holder bottom surface center department set up, and the bottom surface of T type ejector pin is parallel and level with the bottom surface of die holder, and during moulding plastics, the bottom surface contact of die holder and T type ejector pin to play the supporting role to the core, guarantee the quality of work piece.

2. After the work piece cooling shaping, the removal of injection molding machine drives the backward movement of die holder and lower mould to last mould, lower mould and last mould separation this moment, the work piece is because expend with heat and contract with cold and the cladding outside to the core, after lower mould moved certain distance, the inside fore-set of unloading of injection molding machine passes the opening and contacts with the boss of lower mould both sides, thereby the restriction lower mould removes, the die holder continues to remove this moment, the die holder passes through T type ejector pin simultaneously and drives the core and slide along the mounting groove, the spring is compressed, make work piece and core separation, make things convenient for the automatic drawing of patterns of work piece, drawing of patterns convenient and fast more.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is the schematic view of the internal cross-sectional structure of the present invention.

In the figure: the die comprises a lower die base 1, a forming mechanism 2, a mounting groove 21, a spring 22, a 23T-shaped ejector rod, a limiting cover plate 24, a mold core 25, a lower die 3, an upper die 4, an upper die base 5, a sprue bush 6, a die cavity 7, a guide pillar 8, a guide hole 9, an insertion hole 10, a T-shaped pull rod 11, a boss 12, a notch 13, a cooling channel 14 and a fixing hole 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present embodiment provides a technical solution: an injection mold for producing a lithium battery slurry filter shell comprises a lower die holder 1, an upper die 4 and a forming mechanism 2;

a lower die holder 1: the middle part of the upper surface of the lower die is provided with the lower die 3, four corners of the upper surface of the lower die 3 are uniformly provided with guide pillars 8, the upper surface of the upper die 4 is provided with an upper die base 5, four corners of the upper die 4 and the upper die base 5 are respectively provided with a guide hole 9 which is in sliding connection with the guide pillars 8, so that the sliding guide effect on the movement of the upper die 4 and the lower die 3 can be realized, four corners of the lower die base 1 and four corners of the upper die base 5 are respectively provided with a fixing hole 15, and the installation and fixation of the lower die base 1 and the upper die base 5 are facilitated;

the forming mechanism 2: the die comprises a mounting groove 21 and a die core 25, wherein the mounting groove 21 is arranged in the middle of a lower die 3, the die core 25 is connected in the mounting groove 21 in a sliding manner, a die cavity 7 corresponding to the die core 25 is arranged in the middle of the lower surface of an upper die 4, the die core 25 is matched with the die cavity 7 to facilitate the forming of a workpiece, the forming mechanism 2 further comprises a T-shaped ejector rod 23 and a limiting cover plate 24, the T-shaped ejector rod 23 is arranged in the center of the bottom surface of the die core 25, the limiting cover plate 24 is arranged at an opening at the lower end of the mounting groove 21, a through hole corresponding to the T-shaped ejector rod 23 is arranged in the middle of the limiting cover plate 24, the lower end of the T-shaped ejector rod 23 is positioned in a step hole arranged in the center of the bottom surface of a lower die holder 1, the bottom surface of the T-shaped ejector rod 23 is flush with the bottom surface of the lower die holder 1, during injection molding, the lower die holder 1 is in contact with the bottom surface of the T-shaped ejector rod 23 to support the die core 25, a movable spring 22 is sleeved on the upper end of the T-shaped ejector rod 23, the spring 22 is positioned between the die core 25 and the limiting cover plate 24, assisting the resetting of a T-shaped ejector rod 23 and a mold core 25, arranging bosses 12 in the middle of the left side surface and the right side surface of a lower mold 3, arranging notches 13 corresponding to the bosses 12 in the middle of the left side surface and the right side surface of a lower mold base 1, after a workpiece is cooled and formed, moving the injection molding machine to drive the lower mold base 1 and the lower mold 3 to move reversely towards an upper mold 4, separating the lower mold 3 from the upper mold 4 at the moment, coating the workpiece to the outer side of the mold core 25 due to expansion and contraction, after the lower mold 3 moves for a certain distance, an unloading ejector column in the injection molding machine penetrates through the notches 13 and contacts with the bosses 12 on two sides of the lower mold 3 to limit the movement of the lower mold 3, continuing to move the lower mold base 1, simultaneously driving the mold core 25 to slide along a mounting groove 21 through the T-shaped ejector rod 23 by the lower mold base 1, compressing a spring 22 to separate the workpiece from the mold core 25, facilitating the automatic demolding of the workpiece, symmetrically arranging T-shaped pull rods 11 in the middle of the upper surface of the lower mold base 1, jacks 10 connected with a T-shaped pull rod 11 in a sliding manner are symmetrically arranged in the lower die 3 from left to right, and play a role in sliding guiding the relative sliding of the lower die 3 and the lower die base 1;

wherein: a sprue bush 6 is arranged in the mounting hole in the middle of the upper die base 5, and the lower end of the sprue bush 6 is communicated with an injection molding hole in the middle of the upper die 4, so that injection molding of molten plastics is facilitated.

Wherein: and cooling channels 14 matched with the cavity 7 are symmetrically arranged in the upper die 4 in the front-back direction, so that the workpiece can be rapidly cooled and formed conveniently.

The utility model provides a pair of injection mold is used in production of lithium battery thick liquids filter shell's theory of operation as follows: the lower die holder 1 and the upper die holder 5 are respectively fixed to proper stations of an external injection molding machine through a fixing hole 15, an injection port of the injection molding machine corresponds to the position of a sprue bush 6 in the middle of the upper die holder 5, a moving end of the external injection molding machine drives the lower die holder 1 and the lower die 3 to approach to an upper die 4 until the lower die 3 is completely attached to the upper die 4, the injection molding machine passes molten plastics, the sprue bush 6 is injected into a gap between a mold core 25 and a cavity 7 for pressure maintaining, then external cooling liquid flows through the cooling channel 14 to cool a workpiece, and during injection molding, the lower die holder 1 is contacted with the bottom surface of a T-shaped ejector rod 23, so that the mold core 25 is supported, after the workpiece is cooled and formed, the movement of the injection molding machine drives the lower die holder 1 and the lower die 3 to move reversely to the upper die 4, the lower die 3 is separated from the upper die 4 at the moment, the workpiece is coated to the outer side of the core 25 due to expansion and contraction, after the lower die 3 moves for a certain distance, the unloading ejection column inside the injection molding machine penetrates through the notch 13 and is in contact with the bosses 12 on the two sides of the lower die 3, so that the lower die 3 is limited to move, at the moment, the lower die holder 1 continues to move, meanwhile, the lower die holder 1 drives the core 25 to slide along the mounting groove 21 through the T-shaped ejector rod 23, the spring 22 is compressed, the workpiece is separated from the core 25, the workpiece is convenient to automatically demold, and after demolding, the lower die holder 1 and the upper die holder 5 reset and continue to perform next injection molding.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides an injection mold is used in production of lithium cell thick liquids filter shell which characterized in that: comprises a lower die holder (1), an upper die (4) and a forming mechanism (2);

lower die holder (1): the middle part of the upper surface of the die is provided with a lower die (3), four corners of the upper surface of the lower die (3) are uniformly provided with guide posts (8), the upper surface of the upper die (4) is provided with an upper die base (5), and four corners of the upper die (4) and the upper die base (5) are respectively provided with a guide hole (9) which is in sliding connection with the guide posts (8);

molding mechanism (2): the die comprises a mounting groove (21) and a core (25), wherein the mounting groove (21) is arranged in the middle of a lower die (3), the core (25) is connected to the inside of the mounting groove (21) in a sliding manner, and a cavity (7) corresponding to the core (25) is arranged in the middle of the lower surface of an upper die (4);

wherein: a sprue bush (6) is arranged in a mounting hole in the middle of the upper die base (5), and the lower end of the sprue bush (6) is communicated with an injection molding hole in the middle of the upper die (4).

2. The injection mold for producing the lithium battery slurry filter housing as claimed in claim 1, wherein: forming mechanism (2) still include T type ejector pin (23) and spacing apron (24), T type ejector pin (23) set up in the bottom surface center department of core (25), and spacing apron (24) set up in the lower extreme opening part of mounting groove (21), and the middle part of spacing apron (24) is equipped with the through-hole that corresponds in T type ejector pin (23), and the lower extreme of T type ejector pin (23) is located the step hole that die holder (1) bottom surface center department set up, and the bottom surface of T type ejector pin (23) is parallel and level with the bottom surface of die holder (1).

3. The injection mold for producing the lithium battery slurry filter casing as claimed in claim 2, wherein: the upper end of the T-shaped ejector rod (23) is movably sleeved with a spring (22), and the spring (22) is located between the mold core (25) and the limiting cover plate (24).

4. The injection mold for producing the lithium battery slurry filter housing as claimed in claim 1, wherein: the middle parts of the left side surface and the right side surface of the lower die (3) are respectively provided with a boss (12), and the middle parts of the left side surface and the right side surface of the lower die base (1) are respectively provided with a notch (13) corresponding to the bosses (12).

5. The injection mold for producing the lithium battery slurry filter casing as claimed in claim 1, wherein: the middle part of the upper surface of the lower die holder (1) is provided with T-shaped pull rods (11) in a bilateral symmetry mode, and the inner part of the lower die (3) is provided with insertion holes (10) in a bilateral symmetry mode, wherein the insertion holes are connected with the T-shaped pull rods (11) in a sliding mode.

6. The injection mold for producing the lithium battery slurry filter housing as claimed in claim 1, wherein: and cooling channels (14) matched with the cavity (7) are symmetrically arranged in the upper die (4) in front and back.

7. The injection mold for producing the lithium battery slurry filter housing as claimed in claim 1, wherein: four corners of the lower die holder (1) and four corners of the upper die holder (5) are provided with fixing holes (15).