CN215882441U

CN215882441U - Injection mold for producing automobile relay shell

Info

Publication number: CN215882441U
Application number: CN202121937071.6U
Authority: CN
Inventors: 栾承亚; 李申; 魏小菊; 陈政祥
Original assignee: Ningbo Wanlin Electronic Technology Co ltd
Current assignee: Ningbo Wanlin Electronic Technology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-22
Anticipated expiration: 2031-08-18

Abstract

The utility model relates to an injection mold for producing an automobile relay shell, which comprises an upper mold base and a lower mold base, wherein an upper mold core and a lower mold core which are stacked up and down are arranged between the upper mold base and the lower mold base, two rows of mold cavities are arranged between the upper mold core and the lower mold core side by side, a molding insert is arranged in each mold cavity on the lower mold core, two inclined guide grooves are symmetrically arranged on two sides of the molding insert, the transverse distance between the two inclined guide grooves is gradually reduced from bottom to top, a fixture block insert is slidably arranged in each inclined guide groove, core pulling devices are respectively arranged on the lower mold base and positioned on two sides of the lower mold core, and a primary top plate assembly and a secondary top plate assembly are sequentially arranged at the lower end of the lower mold base from top to bottom. The two fixture block inserts slide obliquely with the forming insert, so that the demolding difficulty is greatly reduced; the forming insert is internally provided with a cooling pipeline in an inverted V shape, the cooling pipeline in the shape is suitable for cooling small parts, the cooling effect is good, and the occupied space is small.

Description

Injection mold for producing automobile relay shell

Technical Field

The utility model relates to the technical field of automobile relays, in particular to an injection mold for producing an automobile relay shell.

Background

The automobile relay plays a role in protection, prevents switch contacts from burning in a mode of controlling large current by small current, and protects a switch control circuit.

When the input quantity (such as voltage, current, temperature and the like) reaches a specified value, the controlled output circuit is turned on or off. It can be divided into two categories, i.e. electrical (such as current, voltage, frequency, power, etc.) and non-electrical (such as temperature, pressure, speed, etc.) relays. Has the advantages of quick action, stable work, long service life, small volume and the like. The device is widely applied to devices of power protection, automation, motion, remote control, measurement, communication and the like.

A relay is an electronic control device having a control system (also known as an input loop) and a controlled system (also known as an output loop). Is generally applied to automatic control circuits. It is actually an "automatic switch" that controls a larger current with a smaller current. Therefore, the circuit has the functions of automatic adjustment, safety protection, circuit conversion and the like. With the popularization of automobiles, the automation degree of the automobiles is higher and higher. The application of the automobile relay is also increasingly wider, and the shell of the automobile relay is an important component of the automobile relay.

As shown in fig. 7, the bottom of the automotive relay housing 20 has an inner cavity 23, two sides of the bottom of the inner cavity 23 are respectively provided with a plurality of locking blocks 21, the locking blocks 21 are inclined and cannot be ejected normally, a side hole 22 is further formed on the side edge of the upper portion of the automotive relay housing 20, and the locking blocks 21 and the inner cavity 23 are both difficult to form by the side hole 22.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an injection mold for producing an automobile relay shell, wherein two fixture block inserts and a forming insert slide obliquely, so that the demolding difficulty is greatly reduced; the forming insert is internally provided with a cooling pipeline in an inverted V shape, the cooling pipeline in the shape is suitable for cooling small parts, the cooling effect is good, and the occupied space is small.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the injection mold for producing the automobile relay shell comprises an upper mold base and a lower mold base, wherein an upper mold core and a lower mold core which are stacked up and down are arranged between the upper mold base and the lower mold base, two rows of mold cavities are arranged between the upper mold core and the lower mold core side by side, a molding insert is arranged in each mold cavity on the lower mold core, two inclined guide grooves are symmetrically arranged on the front side and the rear side of the molding insert, the transverse distance between the two inclined guide grooves is gradually reduced from bottom to top, a fixture block insert is slidably arranged in each inclined guide groove, core pulling devices are respectively arranged on the lower mold base and positioned on two sides of the lower mold core, a first-stage top plate component and a second-stage top plate component are sequentially arranged at the lower end of the lower mold base from top to bottom, an ejector rod penetrating through the molding insert is arranged at the upper end of the first-stage top plate component, and a connecting rod connected with the fixture block insert is arranged at the upper end of the second-stage top plate component, and a button machine is arranged between the front end of the first-stage top plate component and the front end of the second-stage top plate component.

As a supplement to the technical scheme of the utility model, the core pulling device comprises a slider seat and side inserts, the slider seat is transversely slidably mounted on the lower die seat, the side inserts are mounted on one side of the slider seat close to the die cavity, the side inserts are arranged on the inner sides of the side inserts and correspond to the forming inserts one by one, and the lower end of the upper die seat is provided with inclined guide posts inserted into the slider seat.

As a supplement to the technical scheme of the utility model, the forming insert is internally provided with a cooling pipeline in an inverted V shape.

As a supplement to the technical scheme of the utility model, two sides of the lower end of the lower die holder are respectively provided with a die foot, and the primary top plate component and the secondary top plate component are positioned between the two die feet.

As a supplement to the technical scheme of the utility model, the lower end of the forming insert is provided with a clamping groove, the section of the clamping groove is in an inverted T shape, and the upper end of the connecting rod is provided with a clamping part matched with the clamping groove.

Has the advantages that: the utility model relates to an injection mold for producing an automobile relay shell, wherein during mold closing, a forming insert and two fixture block inserts are spliced together to jointly assist an inner cavity, two core pulling devices are closed, a side insert on one side of each core pulling device assists in forming a row of side holes, the mold is opened after the product is formed, the two core pulling devices are opened, a first-stage top plate component and a second-stage top plate component are upwards together, the product and the fixture block inserts are jacked up through a top rod and a connecting rod, so that the lower end of the automobile relay shell is separated from the bottom of a mold cavity, meanwhile, the two fixture block inserts move relatively close to each other, the fixture block inserts are separated from fixture blocks of the automobile relay shell, and then the second-stage top plate component is controlled to be still, the first-stage top plate component continues to be upwards, the connecting rod on the first-stage top plate component jacks up the product, demolding is completed, and the demolding difficulty is greatly reduced; the forming insert is internally provided with a cooling pipeline in an inverted V shape, the cooling pipeline in the shape is suitable for cooling small parts, the cooling effect is good, and the occupied space is small.

Drawings

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

FIG. 2 is a schematic structural view of a lower die holder and a lower die core according to the present invention;

FIG. 3 is a schematic view of the structure of a lower mold core and a lower mold core according to the present invention;

FIG. 4 is a schematic view of the mold insert and fixture insert of the present invention;

fig. 5 is a schematic view of a molding insert according to the present invention;

fig. 6 is a schematic view of the construction of the molding insert and lower core of the present invention;

fig. 7 is a schematic structural view of an automotive relay case produced by the present invention.

The figure is as follows: 1. the die comprises an upper die base, 2, an upper die core, 3, a lower die core, 4, a lower die base, 5, a first-level top plate assembly, 6, a second-level top plate assembly, 7, an ejector rod, 8, a connecting rod, 9, a core pulling device, 10, a forming insert, 11, a die foot, 12, a side insert, 13, a slider base, 14, a fixture block insert, 15, a cooling pipeline, 16, an inclined guide groove, 17, a buckling machine, 18, a side hole insert, 19, a clamping groove, 20, an automobile relay shell, 21, a fixture block, 22, a side hole, 23 and an inner cavity.

Detailed Description

The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

The embodiment of the utility model relates to an injection mold for producing an automobile relay shell, which comprises an upper mold base 1 and a lower mold base 4, wherein an upper mold core 2 and a lower mold core 3 which are stacked up and down are arranged between the upper mold base 1 and the lower mold base 4, two rows of mold cavities are arranged between the upper mold core 2 and the lower mold core 3 side by side, a forming insert 10 is arranged in each mold cavity on the lower mold core 3, two inclined guide grooves 16 are symmetrically arranged on the front side and the rear side of the forming insert 10, the transverse distance between the two inclined guide grooves 16 is gradually reduced from bottom to top, a fixture block insert 14 is slidably arranged in each inclined guide groove 16, core pulling devices 9 are respectively arranged on the lower mold base 4 and on the two sides of the lower mold core 3, a primary top plate component 5 and a secondary top plate component 6 are sequentially arranged at the lower end of the lower mold base 4 from top to bottom, ejector rods 7 penetrating through the forming inserts 10 are installed at the upper end of the first-stage top plate assembly 5, each forming insert 10 corresponds to four ejector rods 7, the four ejector rods 7 are located at four corners of the forming insert 10 respectively, a connecting rod 8 connected with a fixture block insert 14 is installed at the upper end of the second-stage top plate assembly 6, and a fastening machine 17 is installed between the front end of the first-stage top plate assembly 5 and the front end of the second-stage top plate assembly 6.

The core pulling device 9 comprises a slider seat 13 and a side insert 12, the slider seat 13 is transversely installed on the lower die seat 4 in a sliding mode, the side insert 12 is installed on one side, close to the die cavity, of the slider seat 13, the side insert 12 is arranged on the inner side of the side insert 12 and is provided with side hole inserts 18 in one-to-one correspondence with the forming inserts 10, the side hole inserts 18 are used for assisting in forming side holes 22, and the lower end of the upper die seat 1 is provided with an inclined guide post inserted into the slider seat 13.

The button machine 17 controls the ejection sequence of the primary ejection plate assembly 5 and the secondary ejection plate assembly 6, and the button machine 17 belongs to the existing part and can be directly purchased in the market. When the mold is closed, the molding insert 10 and the two fixture block inserts 14 are spliced together to jointly assist the inner cavity 23, the two core pulling devices 9 are closed, the side insert 12 on one side of each core pulling device 9 assists in molding a row of side holes 22, the mold is opened after the product is molded, the two core pulling devices 9 are opened, the first-stage top plate assembly 5 and the second-stage top plate assembly 6 firstly move upwards together, the product and the fixture block inserts 14 are jacked up together through the ejector rod 7 and the connecting rod 8, the lower end of the automobile relay shell 20 is separated from the bottom of the mold cavity, meanwhile, the two fixture block inserts 14 move relatively close together, the fixture block inserts 14 are separated from the fixture blocks 21 of the automobile relay shell 20, then the second-stage top plate assembly 6 is controlled to be stationary, the first-stage top plate assembly 5 continues to move upwards, the connecting rod 8 on the first-stage top plate assembly 5 jacks up the product, and demolding is completed.

The forming insert 10 is internally provided with an inverted V-shaped cooling pipeline 15, the cooling pipeline 15 in the shape is suitable for cooling small parts, the cooling effect is good, and the occupied space is small.

And two sides of the lower end of the lower die base 4 are respectively provided with a die foot 11, and the primary top plate assembly 5 and the secondary top plate assembly 6 are positioned between the two die feet 11.

The lower end of the forming mold insert 10 is provided with a clamping groove 19, the section of the clamping groove 19 is in an inverted T shape, the upper end of the connecting rod 8 is provided with a clamping portion matched with the clamping groove 19, the clamping portion can slide along the clamping groove 19, and the clamping portion and the clamping groove 19 are arranged to facilitate the disassembly and assembly of the forming mold insert 10 and the connecting rod 8.

Claims

1. The utility model provides an injection mold for producing automobile relay shell, includes upper die base (1) and die holder (4), upper die base (1) and die holder (4) between install last mould core (2) and lower mould core (3) that stack from top to bottom, its characterized in that: two rows of mold cavities are arranged between the upper mold core (2) and the lower mold core (3) side by side, a forming insert (10) is arranged in each mold cavity on the lower mold core (3), two inclined guide grooves (16) are symmetrically arranged on the front side and the rear side of each forming insert (10), the transverse distance between the two inclined guide grooves (16) is gradually reduced from bottom to top, a fixture block insert (14) is slidably arranged in each inclined guide groove (16), core pulling devices (9) are respectively arranged on the lower die base (4) on the two sides of the lower mold core (3), a primary top plate component (5) and a secondary top plate component (6) are sequentially arranged at the lower end of the lower die base (4) from top to bottom, an ejector rod (7) penetrating through the forming insert (10) is arranged at the upper end of the primary top plate component (5), and a connecting rod (8) connected with the fixture block insert (14) is arranged at the upper end of the secondary top plate component (6), and a button machine (17) is arranged between the front end of the first-stage top plate component (5) and the front end of the second-stage top plate component (6).

2. The injection mold for producing the automobile relay housing as claimed in claim 1, wherein: the core pulling device (9) comprises a slider seat (13) and side mold inserts (12), the slider seat (13) is transversely installed on the lower die seat (4) in a sliding mode, the side mold inserts (12) are installed on one side, close to the die cavity, of the slider seat (13), the inner sides of the side mold inserts (12) are provided with side hole mold inserts (18) corresponding to the forming mold inserts (10) one by one, and the lower end of the upper die seat (1) is provided with an inclined guide post inserted into the slider seat (13).

3. The injection mold for producing the automobile relay housing as claimed in claim 1, wherein: and a cooling pipeline (15) in an inverted V shape is arranged in the forming insert (10).

4. The injection mold for producing the automobile relay housing as claimed in claim 1, wherein: and two sides of the lower end of the lower die seat (4) are respectively provided with a die foot (11), and the primary top plate component (5) and the secondary top plate component (6) are positioned between the two die feet (11).

5. The injection mold for producing the automobile relay housing as claimed in claim 1, wherein: the lower end of the forming insert (10) is provided with a clamping groove (19), the section of the clamping groove (19) is in an inverted T shape, and the upper end of the connecting rod (8) is provided with a clamping part matched with the clamping groove (19).