CN113650232A

CN113650232A - Connector shell forming die and forming process thereof

Info

Publication number: CN113650232A
Application number: CN202111094817.6A
Authority: CN
Inventors: 王坚波; 徐浙帅; 刘利超
Original assignee: Dongguan Jinling Electronics Co ltd
Current assignee: Dongguan Jinling Electronics Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-11-16

Abstract

The invention relates to the technical field of connector processing, in particular to a connector shell molding die and a molding process thereof. The front mold base includes a front mold base plate and a front mold plate, the rear mold base includes a rear mold plate, a square iron, a thimble plate, a thimble cover plate and a rear mold base plate, and the mold core includes a front mold core and a rear mold core. and the positioning assembly, a plurality of injection molding cavities for injection molding the connector housing are formed between the front mold core and the rear mold core. The molding die in the present invention can realize mass production, the product is easy to demould, not easily damaged, the product yield is high, and the production efficiency is high. It is convenient for the disassembly and maintenance of the connector shell forming mold, and only the easily worn parts need to be separated and replaced in the maintenance process, which is convenient for maintenance and effectively reduces the maintenance cost.

Description

Connector shell forming die and forming process thereof

Technical Field

The invention relates to the technical field of connector processing, in particular to a connector shell forming die and a forming process thereof.

Background

A connector is a component that is often contacted by those skilled in our electrical engineering. Its effect is very simple: a bridge for communication is built between the blocked or isolated dead circuits in the circuit, so that current flows and the circuit realizes the predetermined function. Connectors are indispensable components in electronic devices, and one or more connectors are always found by observing a current flowing path. The connector forms and structures are widely varied, and there are various types of connectors depending on the application, frequency, power, application environment, and the like. For example, connectors for court lights and hard drives, and connectors for rocket lights are quite different. However, in any connector, it is necessary to ensure smooth, continuous and reliable flow of current.

The connector generally comprises a connector shell and terminals, the terminals are installed in the connector shell, in the production and processing process, the terminals are formed by die casting, the connector shell is formed by an injection molding process, a traditional forming mold is that a mold cavity is formed in an upper mold and a lower mold, the mode can only be used for injection molding of one plastic shell at a time, mass production cannot be realized, meanwhile, the connector shell formed in the mold is difficult to demould, products are easy to damage in the ejection process, the product yield is low, the production and processing efficiency is low, meanwhile, the mold is inconvenient to maintain, and the maintenance cost is high. Therefore, there is a need for an improved connector housing forming mold.

Disclosure of Invention

The invention aims to provide a connector shell forming die and a forming process thereof, and aims to solve the technical problems that the existing connector shell forming die only can be used for injection molding of one plastic shell at a time, mass production cannot be realized, and meanwhile, the connector shell formed in the die is difficult to demould, a product is easy to damage in the ejection process, so that the product yield is low, the production and processing efficiency is low, and meanwhile, the die is inconvenient to maintain and the maintenance cost is high.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a connector shell forming die, forming die includes front die base, back die base and sets up the mold core between front die base and back die base, the front die base includes front die bedplate and front template, the front die bedplate is installed on the front template, back die base includes back template, square iron, thimble board, faller and back die bedplate, and wherein the back template is located the lower terminal surface of front template, and is formed with the mounting groove that is used for installing the mold core between back template and the front template, the square iron is provided with two, two one end and the back template of square iron are connected, and the other end is connected with back die bedplate, and two be formed with the holding chamber between square iron and back template and the back die bedplate, thimble board and thimble apron set up in this holding chamber, the up end and the thimble board of thimble apron are connected, and lower terminal surface and back die bedplate are connected, the mold core includes the front die core, Back mold core and capable position subassembly, preceding mold core is located back mold core top, and is formed with a plurality of injection molding cavities that are used for the connector shell of moulding plastics between preceding mold core and the back mold core, the capable position subassembly is provided with two, two the both sides at the injection molding cavity of capable position subassembly symmetric distribution, forming die still includes the feeding and irritates the mouth, the mouth is irritated through the feeding and is linked together with the injection molding cavity through the runner.

Preferably, the front die base is provided with a positioning ring, the positioning ring is used for fixing the feeding filling nozzle, and the positioning ring and the feeding filling nozzle are coaxially arranged.

Preferably, guide pillars are arranged at two ends of the square iron and penetrate through the rear template from bottom to top and then are connected with guide sleeves embedded and mounted on the front template.

Preferably, a plurality of thimbles are arranged on the thimble plate, and the thimbles sequentially penetrate through the rear template and the rear mold core from bottom to top and extend into the injection molding cavity.

Preferably, be provided with a plurality of return needles on the apron, it is a plurality of the return needle passes in proper order from bottom to top behind thimble board and the back template and is connected with the contact of front form board, every the cover is equipped with return spring on the return needle and lies in between thimble board and the back template.

Preferably, the through hole that is used for ejecting the thimble cover board is seted up to the bottom centre department of back die block board, and still is provided with a plurality of support column on the back die block board, a plurality of the support column is connected with the contact of back die block after thimble cover board and thimble board are run through from bottom to top.

Preferably, preceding mold core includes the preceding die backing plate be connected with preceding template and sets up preceding end plate, back end plate, left end board and the right end board of terminal surface under preceding die backing plate, preceding end plate, back end plate, left end board and right end board enclose into a framework, and mold core before first mold core and second is provided with in this framework, keep apart through the baffle between first preceding mold core and the second preceding mold core.

Preferably, the rear mold core comprises a rear mold backing plate fixedly connected with the rear mold plate and a mold base arranged on the upper end surface of the rear mold backing plate, mold feet are arranged at four corners of the mold base, a mold core plate is arranged in the mold base, and a plurality of mold cores are arranged on the mold core plate.

Preferably, the slide subassembly includes shovel base, slider seat, slider, wear-resisting piece and oblique top, wear-resisting piece is located the lower terminal surface of slider seat, and wear-resisting piece and back template spacing connection, the slider is installed on the slider seat, shovel base one end face is connected with the contact of slider seat, and another terminal surface is connected with the front template, the oblique top is provided with two, two the oblique top from top to bottom runs through behind the slider seat and is connected with wear-resisting piece contact.

The invention also provides a molding process of the connector shell molding die, which comprises the following steps:

s1, performing preliminary preparation work, namely installing a connector shell forming mold in a horizontal injection molding machine, wherein a front mold base and a front mold core are installed in the direction of a gun platform of the injection molding machine, and simultaneously positioning and connecting a filling nozzle and a nozzle of the injection molding machine through a positioning ring;

s2, die assembly is carried out, the front die holder and the rear die holder are closed, and an injection molding cavity for injection molding of the connector shell is formed among the front die holder, the rear die holder and the two slide assemblies;

s3, setting injection molding parameters to mold the connector shell, setting glue filling amount and cooling time according to the size of the injection molding connector shell, and then enabling liquid plastic to enter an injection molding cavity through a feeding and filling nozzle to mold the connector shell;

and S4, opening the mold, opening the rear mold base under the action of the injection molding machine, driving the rear mold core to open, sliding the slide block on the slide component backwards, horizontally sliding, ejecting the injection molded connector shell by the ejector pin, and taking out a finished product by the manipulator.

Compared with the prior art, the invention has the following beneficial effects:

1. the connector shell forming die is simple in overall structure and reasonable in design, wherein the die core of the connector shell forming die comprises a front die core, a rear die core and a slide component, the front die core comprises a front die backing plate connected with a front die plate, a front end plate, a rear end plate, a left end plate and a right end plate, the front end plate is arranged on the lower end face of the front die backing plate, the rear die core comprises a rear die backing plate fixedly connected with the rear die plate, a die frame arranged on the upper end face of the rear die backing plate and a die core plate arranged in the die frame, the front die core and the rear die core are of an inlaid structure, the connector shell forming die is convenient to disassemble, assemble and maintain, only parts prone to wear need to be separated and replaced independently in the maintenance process, the connector shell forming die is convenient to maintain, and the maintenance cost is effectively reduced.

2. The plurality of mold cores are arranged on the mold core plate, and are matched with the first front mold core and the second front mold core to form a plurality of injection molding cavities for injection molding of the connector shell, so that the plurality of connector shells can be molded simultaneously, mass production can be realized, and the production efficiency is improved.

3. The rear die holder is opened under the action of the injection molding machine in the demolding process of the connector shell forming die, the rear die core is driven to be opened, the sliding block on the slide component extends backwards and slides left and right, the ejector pin ejects the connector shell which is subjected to injection molding, the demolding purpose is achieved through the matching of the slide component and the ejector pin, the product is not easy to damage in the demolding process, and the yield of the product is effectively improved.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a block diagram of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an exploded view of the mold core of the present invention;

FIG. 5 is an exploded view of the rear die holder of the present invention;

FIG. 6 is an exploded view of the front core of the present invention;

FIG. 7 is an exploded view of the rear mold core of the present invention;

FIG. 8 is a block diagram of a row bit assembly of the present invention.

The reference numerals and names in the figures are as follows:

1. a front die holder; 11. a front mold base plate; 12. a front template; 2. a rear die holder; 21. a rear template; 22. square iron; 23. an ejector plate; 24. a thimble cover plate; 25. a rear mold base plate; 3. a mold core; 31. a front mold core; 311. a front mold backing plate; 312. a front end plate; 313. a rear end plate; 314. a left end plate; 315. a right end plate; 316. a first front mold core; 317. a second front mold core; 318. a partition plate; 32. a rear mold core; 321. a rear mold backing plate; 322. a mold frame; 323. a mould leg; 324. a core plate; 325. a mold core; 33. a row bit component; 331. a shovel base; 332. a slider seat; 333. a slider; 334. a wear-resistant block; 335. obliquely ejecting; 34. injection molding a cavity; 4. mounting grooves; 5. feeding and filling a nozzle; 6. a positioning ring; 7. a guide post; 8. a guide sleeve; 9. a thimble; 10. a return needle; 13. a return spring; 14. a through hole; 15. a support pillar; 16. and a flow passage.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1 to 5, an embodiment of the present invention includes: a connector shell forming die comprises a front die holder 1, a rear die holder 2 and a die core 3 arranged between the front die holder 1 and the rear die holder 2, wherein the front die holder 1 comprises a front die base plate 11 and a front die plate 12, the front die base plate 11 is installed on the front die plate 12, the rear die holder 2 comprises a rear die plate 21, square irons 22, ejector pins 23, ejector pin cover plates 24 and a rear die base plate 25, the rear die plate 21 is positioned on the lower end face of the front die plate 12, an installation groove 4 for installing the die core 3 is formed between the rear die plate 21 and the front die plate 12, the square irons 22 are provided with two blocks, one ends of the two square irons 22 are connected with the rear die plate 21, the other ends of the two square irons are connected with the rear die base plate 25, an accommodating cavity is formed between the two square irons 22 and the rear die plate 21 as well as between the rear die base plate 25, the ejector pin plates 23 and the ejector pin cover plates 24 are arranged in the accommodating cavity, the upper end face of the ejector pin cover plates 24 is connected with the ejector pin plates 23, the lower end face is connected with the rear mold base plate 25, the mold core 3 comprises a front mold core 31, a rear mold core 32 and a slide component 33, the front mold core 31 is located above the rear mold core 32, a plurality of injection molding cavities 34 used for injection molding of the connector shell are formed between the front mold core 31 and the rear mold core 32, the slide component 33 is provided with two slide components 33, the two slide components 33 are symmetrically distributed on two sides of the injection molding cavities 34, the forming mold in the embodiment further comprises a feeding filling nozzle 5, and the feeding filling nozzle 5 is communicated with the injection molding cavities 34 through a flow channel 16.

Specifically, be provided with holding ring 6 in this embodiment on the front die base 1, holding ring 6 is used for fixed feeding to irritate mouth 5, and holding ring 6 irritates 5 coaxial settings of mouth with the feeding, when fixing forming die on the injection molding machine, irritates the feed inlet that mouth 5 and injection molding machine are connected through holding ring 6 with the feeding.

Specifically, guide pillars 7 are arranged at two ends of the square iron 22, the guide pillars 7 penetrate through the rear die plate 21 from bottom to top and then are connected with guide sleeves 8 embedded in the front die plate 12, and the guide pillars 7 guide the rear die holder 2 when the die is closed, so that the rear die holder is prevented from being displaced and damaging a forming die.

Specifically, a plurality of ejector pins 9 are arranged on the ejector pin plate 23, and the ejector pins 9 sequentially penetrate through the rear mold plate 21 and the rear mold core 32 from bottom to top and extend into the injection molding cavity 34.

Specifically, a plurality of return needles 10 are arranged on the ejector pin cover plate 24, the return needles 10 sequentially penetrate through the ejector pin plate 23 and the rear template 21 from bottom to top and then are in contact connection with the front template 12, and each return needle 10 is sleeved with a return spring 13 between the ejector pin plate 23 and the rear template 21.

Specifically, a through hole 14 for ejecting the thimble cover plate 24 is formed in the middle of the bottom of the rear mold base plate 25, a plurality of support columns 15 are further arranged on the rear mold base plate 25, and the support columns 15 penetrate through the thimble cover plate 24 and the thimble plate 23 from bottom to top and are connected with the rear mold plate 21 in a contact manner.

Referring to fig. 6, the front mold core 31 in the drawing includes a front mold backing plate 311 connected to the front mold plate 12, and a front end plate 312, a rear end plate 313, a left end plate 314, and a right end plate 315 disposed on a lower end surface of the front mold backing plate 311, the front end plate 312, the rear end plate 313, the left end plate 314, and the right end plate 315 enclose to form a frame, a first front mold core 316 and a second front mold core 317 are disposed in the frame, the first front mold core 316 and the second front mold core 317 are separated by a partition plate 318, the front mold core 31 is in a splicing structure, which facilitates disassembly, assembly, and maintenance of the connector housing forming mold, only the easily worn parts need to be separated and replaced individually in the maintenance process, which facilitates maintenance, and effectively reduces maintenance cost.

Referring to fig. 7, the rear mold core 32 in the drawing includes a rear mold backing plate 321 fixedly connected to the rear mold plate 21 and a mold base 322 disposed on an upper end surface of the rear mold backing plate 321, mold legs 323 are disposed at four corners of the mold base 322, a mold insert plate 324 is disposed in the mold base 322, a plurality of mold inserts 325 are disposed on the mold insert plate 324, and the plurality of mold inserts 325 cooperate with the first front mold core 316 and the second front mold core 317 to form a connector housing.

Referring to fig. 8, the slide assembly 33 in the drawing includes a shovel base 331, a slider seat 332, a slider 333, a wear-resistant block 334, and two slanted tops 335, the wear-resistant block 334 is located on a lower end surface of the slider seat 332, the wear-resistant block 334 is connected with the rear die plate 21 in a limiting manner, the slider 333 is mounted on the slider seat 332, one end surface of the shovel base 331 is connected with the slider seat 332 in a contact manner, the other end surface of the shovel base 331 is connected with the front die plate 12, the two slanted tops 335 are provided, and the two slanted tops 335 penetrate through the slider seat 332 from top to bottom and then are connected with the wear-resistant block 334 in a contact manner.

Referring to fig. 1 to 8 again, the present invention further provides a molding process of a connector housing molding mold, the molding process includes the following steps:

s1, performing preliminary preparation work, namely installing a connector shell forming mold in a horizontal injection molding machine, wherein a front mold base 1 and a front mold core 31 are installed in the direction of a gun platform of the injection molding machine, and simultaneously positioning and connecting a filling nozzle and a nozzle of the injection molding machine through a positioning ring 6;

s2, die assembly is carried out, the front die holder 1 and the rear die holder 2 are subjected to die assembly, and an injection molding cavity 34 for injection molding of the connector shell is formed among the front die core 31, the rear die core 32 and the two slide assemblies 33;

s3, setting injection molding parameters to mold the connector shell, setting the glue filling amount and the cooling time according to the size of the injection molding connector shell, and then enabling liquid plastic to enter the injection molding cavity 34 through the feeding filling nozzle 5 to mold the connector shell;

and S4, opening the mold, wherein the rear mold base 2 is opened under the action of the injection molding machine and drives the rear mold core 32 to be opened, the slide block 333 on the slide component 33 extends backwards and slides left and right, the ejector pin 9 ejects the connector shell formed by injection molding, and a finished product is taken out by the manipulator.

The connector shell is formed by the forming die in the technical scheme, mass production can be realized, the product is easy to demould and is not easy to damage, the product yield is high, the production efficiency is high, meanwhile, the front die core and the rear die core of the forming die are of the inlaid structure, the connector shell forming die is convenient to disassemble, assemble and maintain, only the easily worn parts are required to be separated and replaced independently in the maintenance process, the connector shell is convenient to maintain, and the maintenance cost is effectively reduced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A connector housing forming mold, characterized in that: the forming mold comprises a front mold seat (1), a rear mold seat (2), and a mold seat (1) and a rear mold seat (2) disposed between the front mold seat (1) and the rear mold seat (2). The mold core (3) of the The rear mold base (2) includes a rear template (21), a square iron (22), a thimble plate (23), a thimble cover (24) and a rear mold seat plate (25), wherein the rear template (21) is located in the front template ( 12), and a mounting groove (4) for mounting the mold core (3) is formed between the rear template (21) and the front template (12), the square iron (22) is provided with two pieces, two pieces One end of the square iron (22) is connected with the rear formwork (21), and the other end is connected with the rear mold base plate (25), and the two square irons (22) are connected with the rear formwork (21) and the rear mold base plate An accommodating cavity is formed between (25), the thimble plate (23) and the thimble cover plate (24) are arranged in the accommodating cavity, and the upper end face of the thimble cover plate (24) and the thimble plate (23) connection, the lower end face is connected with the rear mold base plate (25), the mold core (3) includes a front mold core (31), a rear mold core (32) and a positioning assembly (33), the front mold core (31) ) is located above the rear mold core (32), and a plurality of injection molding cavities (34) for injection molding the connector housing are formed between the front mold core (31) and the rear mold core (32). 33) There are two positioning components (33) symmetrically distributed on both sides of the injection molding cavity (34), and the molding die further includes a feeding nozzle (5), the feeding nozzle (5) It is communicated with the injection molding cavity (34) through the flow channel (16).

2 . The connector shell forming mold according to claim 1 , wherein a positioning ring ( 6 ) is provided on the front mold base ( 1 ), and the positioning ring ( 6 ) is used to fix the feeding material. 3 . The filling nozzle (5), and the positioning ring (6) is coaxially arranged with the feeding filling nozzle (5).

3. A connector housing forming mold according to claim 1, characterized in that: both ends of the square iron (22) are provided with guide posts (7), the guide posts (7) from bottom to top After passing through the rear template (21), it is connected with the guide sleeve (8) embedded in the front template (12).

4. A connector housing forming mold according to claim 1, characterized in that: the ejector pin plate (23) is provided with a plurality of ejector pins (9), and the plurality of ejector pins (9) are arranged from bottom to bottom The upper part runs through the rear mold plate (21) and the rear mold core (32) in sequence, and extends into the injection molding cavity (34).

5. A connector housing forming mold according to claim 1, characterized in that: a plurality of return pins (10) are provided on the ejector pin cover (24), and a plurality of the return pins (10) ) from bottom to top pass through the thimble plate (23) and the rear template (21) in order and then contact and connect with the front template (12), and each return pin (10) is located on the thimble plate (23) and the rear template ( 21) A return spring (13) is sleeved between.

6 . The connector housing forming mold according to claim 1 , wherein a through hole ( 14), and a number of support columns (15) are also provided on the rear die base plate (25), and several of the support columns (15) pass through the ejector cover plate (24) and the ejector plate (23) from bottom to top. Contact with the rear template (21).

7. The connector housing forming mold according to claim 1, wherein the front mold core (31) comprises a front mold backing plate (311) connected with the front mold plate (12), and a front mold backing plate (311) disposed on the front mold The front end plate (312), the rear end plate (313), the left end plate (314) and the right end plate (315) of the lower end surface of the backing plate (311), the front end plate (312), the rear end plate (313), the left end plate ( 314 ) and the right end plate ( 315 ) are enclosed into a frame body, in which a first front mold core ( 316 ) and a second front mold core ( 317 ) are arranged, the first front mold core ( 316 ) and the The second front mold cores (317) are separated by partition plates (318).

8 . The connector housing forming mold according to claim 1 , wherein the rear mold core ( 32 ) comprises a rear mold backing plate ( 321 ) fixedly connected with the rear mold plate ( 21 ), and a rear mold plate ( 321 ) arranged in the rear The mold base (322) on the upper end face of the formwork plate (321), the four corners of the mold base (322) are provided with mold feet (323), and the mold base (322) is provided with a mold core plate (324), the A plurality of mould cores (325) are arranged on the mould core plate (324).

9 . The connector housing forming mold according to claim 1 , characterized in that: the positioning assembly ( 33 ) comprises a shovel base ( 331 ), a slider seat ( 332 ), a slider ( 333 ), a resistance Abrasive block (334) and inclined top (335), the wear-resistant block (334) is located on the lower end surface of the slider seat (332), and the wear-resistant block (334) is connected to the rear template (21) at a limit, the said The slider (333) is installed on the slider seat (332), one end face of the shovel base (331) is in contact with the slider seat (332), and the other end face is connected with the front template (12). 335 ) is provided with two, and the two inclined tops ( 335 ) penetrate the slider seat ( 332 ) from top to bottom and then contact and connect with the wear-resistant block ( 334 ).

10. A molding process of the connector housing molding die according to any one of claims 1-9, wherein the molding process comprises the following steps:

S1. Preparatory work, install the connector shell forming mold in the horizontal injection molding machine, wherein the front mold base (1) and the front mold core (31) are installed in the direction of the turret of the injection molding machine, and at the same time, the positioning ring (6) The filling nozzle is positioned and connected with the injection nozzle of the injection molding machine;

S2. Clamp the mold, the front mold base (1) and the rear mold base (2) are closed. At this time, the front mold core (31), the rear mold core (32) and the two positioning components (33) are formed between for the injection molding cavity (34) of the injection molding connector shell;

S3. Set the injection molding parameters to form the connector shell, set the glue filling amount and cooling time according to the size of the injection molding connector shell, and then the liquid plastic enters the injection molding cavity (34) through the feeding filling nozzle (5) to form the connector shell. ;

S4. Open the mold, the rear mold base (2) is opened under the action of the injection molding machine, and drives the rear mold core (32) to open, and the slider (333) on the position component (33) slides backward and left and right, The ejector pin (9) pushes out the injection-molded connector housing, and the finished product is taken out by the manipulator.