CN112497671A

CN112497671A - Zipper head die

Info

Publication number: CN112497671A
Application number: CN202011317945.8A
Authority: CN
Inventors: 王文川; 韩生平; 杨道正
Original assignee: Dongguan Helian Die Co ltd
Current assignee: Dongguan Helian Die Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-03-16

Abstract

The invention discloses a zipper head die, which comprises a front die core, a rear die core, an ejector pin, a first die core, a second die core and a drawing component, wherein the first die core and the second die core are arranged between the front die core and the rear die core, the first die core, the second die core, the front die core and the rear die core form a die cavity together; when the product is formed, the first mold core and the second mold core are pulled away, the ejector pins abut against the product and eject out the product, and no ejector pin mark is generated on the surface of the product.

Description

Zipper head die

Technical Field

The invention relates to a die, in particular to a zipper head die.

Background

In the injection molding process of the mold, when the mold cavity is filled with glue and demolding is started, the ejector pin is ejected out to a preset position by the mold rear mold push plate, the ejector pin ejects the product to separate the product from the mold, and the ejector pin plays a role in the mold in the process.

In the prior art, the thimble is located below the cavity, and in order to prevent the molten raw material from leaking, the thimble must be tightly fitted with a thimble hole on the mold core. After the mould is used for a long time, the abrasion of the thimble hole is increased, so that the thimble hole leaks materials, and the stability and the service life of the mould are influenced. And the raw material in a molten state is contacted with the thimble, so that the surface of the molded product has thimble marks.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the zipper head die which is free of thimble marks on the surface of a formed product and free of material leakage of a thimble hole.

The purpose of the invention is realized by adopting the following technical scheme:

the utility model provides a draw zipper head mould, includes preceding mould benevolence, back mould benevolence and thimble, draw zipper head mould still includes first mold core, second mold core and pull subassembly, first mold core and the second mold core install in preceding mould benevolence and between the back mould benevolence, first mold core the second mold core preceding mould benevolence and back mould benevolence is formed into the chamber altogether, first mold core and the second mold core install respectively in the pull subassembly, thimble movable mounting in back mould benevolence is located first mold core and second mold core below, the pull subassembly drives first mold core and second mold core reverse motion makes first mold core and the second mold core is taken out finished product in the die cavity, the thimble is ejecting with finished product and material ditch.

Furthermore, the rear die core is provided with an installation groove, and the first die core and the second die core are installed in the installation groove.

Furthermore, the rear die core is also provided with a through hole which is communicated with the mounting groove, and when the first die core and the second die core are drawn out of finished products in the die cavity, the thimble penetrates through the through hole and extends into the mounting groove.

Furthermore, the number of the mounting grooves is multiple, and the mounting grooves are uniformly arranged on the rear mold core at intervals.

Further, the pull assembly includes a movable block on which the end of the first mold core and the end of the second mold core are mounted.

Furthermore, the tail end of the first mold core and the tail end of the second mold core are both T-shaped, a boss is arranged on the movable block, and the tail end of the first mold core and the tail end of the second mold core are buckled on the boss.

Furthermore, the pulling assembly further comprises an inclined rod, the inclined rod is installed on the movable block, and the inclined rod drives the movable block to move.

Further, draw zipper head mould still includes back framed and preceding framed, preceding mould benevolence with the back mould benevolence install in back framed and between the preceding framed, movable block slidable mounting in back framed.

Further, the zipper head die further comprises a pressing block, wherein the pressing block is arranged on the movable block and abuts against the tail end of the first die core and the tail end of the second die core, and the first die core and the second die core are prevented from being separated from the movable block.

Further, draw the zipper head mould still including ejecting subassembly, ejecting subassembly includes mounting panel, push rod and the thimble, thimble fixed mounting in the mounting panel, mounting panel slidable mounting in back framed, the push rod with mounting panel fixed connection, the push rod drives the mounting panel and the thimble removes.

Compared with the prior art, the first mold core and the second mold core of the zipper head mold are arranged between the front mold core and the rear mold core, the first mold core, the second mold core, the front mold core and the rear mold core form a cavity together, the first mold core and the second mold core are respectively arranged on the drawing component, the ejector pins are movably arranged on the rear mold core and are positioned below the first mold core and the second mold core, the drawing component drives the first mold core and the second mold core to move in reverse directions, so that the first mold core and the second mold core are drawn out of a finished product in the cavity, and the ejector pins eject the finished product and the material channel out; when the product is formed, the first mold core and the second mold core are pulled away, the ejector pins abut against the product and eject out the product, and no ejector pin mark is generated on the surface of the product.

Drawings

FIG. 1 is a perspective view of a slider mold of the present invention;

fig. 2 is a perspective view of an inner structure of the slider mold of fig. 1;

fig. 3 is a perspective view of a rear mold insert of the zipper head mold of fig. 2;

fig. 4 is a perspective sectional view of the slider mold of fig. 1;

fig. 5 is an open view of the slider mold of fig. 1.

In the figure: 10. a rear mold core; 11. mounting grooves; 12. a through hole; 20. a front mold core; 21. pouring a mouth; 30. a first mold core; 40. a second mold core; 50. a pull assembly; 51. a movable block; 52. a diagonal bar; 60. briquetting; 70. a rear mold frame; 80. ejecting the assembly; 81. mounting a plate; 82. a thimble; 83. a push rod; 90. and a front mold frame.

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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, the zipper head mold of the present invention includes a rear mold core 10, a front mold core 20, a first mold core 30, a second mold core 40, a drawing assembly 50, a pressing block 60, a rear mold frame 70, an ejecting assembly 80, and a front mold frame 90.

The rear mold core 10 is provided with a mounting groove 11 and a through hole 12. Each mounting groove 11 is linear. The number of the mounting grooves 11 is plural, and the mounting grooves 11 are uniformly distributed on the rear mold core 10 at intervals. The through hole 12 is used for the thimble 82 to enter and exit the rear mold core 10. The number of the through holes 12 is plural, and the through holes 12 communicate with the mounting groove 11. The diameter of the through hole 12 is larger than that of the thimble 82.

The front mold core 20 is provided with a pouring opening 21.

The first mold core 30 is linear, and one end of the first mold core 30 is used for forming a cavity of a product, and the other end of the first mold core 30 is used for being mounted on the drawing component 50. In this embodiment, the end of the first mold core 30 mounted on the pulling assembly 50 is T-shaped.

The second mold core 40 is linear, and one end of the second mold core 40 is used for forming a cavity of a product, and the other end is used for being mounted on the drawing assembly 50. In this embodiment, the end of the second mold core 40 mounted on the pulling assembly 50 is T-shaped.

The drawing assembly 50 includes a movable block 51 and a diagonal rod 52. The movable block 51 is provided with bosses for mounting the first mold core 30 and the second mold core 40. The inclined rod 52 is mounted on the movable block 51, the inclined rod 52 has an inclination angle of 20 °, and the inclined rod 52 can extend out of the rear mold frame 70 and the front mold frame 90, so that the movable block 51 can be pulled conveniently.

The ejection assembly 80 includes a mounting plate 81, a thimble 82, and a push rod 83. The thimble 82 is fixedly attached to the mounting plate 81. The push rod 83 is connected to the mounting plate 81.

When the zipper head mold is assembled, the rear mold core 10 is installed on the rear mold frame 70, and the first mold core 30 and the second mold core 40 are located in the installation groove 11 of the rear mold core 10. The movable block 51 is mounted on the rear mold frame 70, the end of the first mold core 30 is buckled with the boss of the movable block 51, and the end of the second mold core 40 is buckled with the boss of the movable block 51. The pressing block 60 is mounted on the movable block 51 and presses against the first mold core 30 and the second mold core 40, preventing the first mold core 30 and the second mold core 40 from separating from the movable block 51. At this time, the first mold core 30 and the second mold core 40 are respectively located at two ends of the rear mold core 10, and the inclined rod 52 extends from the rear mold frame 70. The front mold core 20 is installed on the rear mold core 10, and at this time, the front mold core 20, the rear mold core 10, the first mold core 30 and the second mold core 40 form a mold cavity together, and the mold cavity is communicated with the pouring opening 21 of the front mold core 20. The front mold frame 90 is mounted on the rear mold frame 70. The mounting plate 81 and the ejector pins 82 of the ejector assembly 80 are located in the rear mold frame 70, and the ejector pins 82 are located below the first mold core 30 and the second mold core 40. The push rod 83 is slidably mounted to the rear mold frame 70.

When the slider mold is used, the molten material flows into the cavity from the pouring gate 21 and is injection molded. After the product is cooled, the mold is opened, the front mold frame 90 and the front mold core 20 are moved away, the movable block 51 is driven by the inclined rod 52, the first mold core 30 and the second mold core 40 are moved in opposite directions and are pulled away to the installation position away from the finished product and the material channel, the push rod 83 of the ejection assembly 80 drives the ejector pin 82 to extend into the through hole 12 and the installation groove 11, the finished product and the material channel are ejected together, and the mold ejection is completed. The push rod 83 of the ejector assembly 80 drives the ejector pin 82 to return to the initial position, so that the ejector pin 82 is prevented from interfering with the first mold core 30 and the second mold core 40 during mold closing. And (3) closing the first mold core 30, the second mold core 40, the front mold frame 90 and the front mold core 20, and performing next injection molding.

Through the design, the thimble 82 is positioned below the first mold core 30 and the second mold core 40 and is not in direct contact with the mold cavity, so that the thimble 82 and the through hole 12 on the rear mold core 10 do not need to be tightly matched, and the abrasion can not be caused after long-term use; when the product is formed, the ejector pins 82 abut against the product after the first mold core 30 and the second mold core 40 are pulled away, the product is ejected, and no ink is generated on the surface of the product by the ejector pins 82.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a draw zipper head mould, includes front mould benevolence, back mould benevolence and thimble, its characterized in that: draw zipper head mould still includes first mold core, second mold core and pull subassembly, first mold core and the second mold core install in front mould benevolence and between the back mould benevolence, first mold core the second mold core front mould benevolence and back mould benevolence coform becomes the die cavity, first mold core and the second mold core install respectively in the pull subassembly, thimble movable mounting in back mould benevolence is located first mold core and second mold core below, the pull subassembly drives first mold core and second mold core reverse motion makes first mold core and the second mold core is taken out finished product in the die cavity, the thimble is ejecting with finished product and ditch.

2. The slider mold according to claim 1, wherein: the rear die core is provided with an installation groove, and the first die core and the second die core are installed in the installation groove.

3. The slider mold according to claim 2, wherein: the rear die core is also provided with a through hole which is communicated with the mounting groove, and when the first die core and the second die core are pulled out of finished products in the die cavity, the thimble penetrates through the through hole and extends into the mounting groove.

4. The slider mold according to claim 2, wherein: the number of the mounting grooves is multiple, and the mounting grooves are uniformly arranged on the rear mold core at intervals.

5. The slider mold according to claim 1, wherein: the drawing component comprises a movable block, and the tail end of the first mold core and the tail end of the second mold core are arranged on the movable block.

6. The slider mold according to claim 5, wherein: the tail end of the first mold core and the tail end of the second mold core are both T-shaped, a boss is arranged on the movable block, and the tail end of the first mold core and the tail end of the second mold core are buckled on the boss.

7. The slider mold according to claim 5, wherein: the drawing component further comprises an inclined rod, the inclined rod is installed on the movable block, and the inclined rod drives the movable block to move.

8. The slider mold according to claim 7, wherein: draw zipper head mould still includes back framed and preceding framed, preceding mould benevolence and back mould benevolence install in back framed and between the preceding framed, movable block slidable mounting in back framed.

9. The slider mold according to claim 5, wherein: the zipper puller die further comprises a pressing block, wherein the pressing block is installed on the movable block and abuts against the tail end of the first die core and the tail end of the second die core, and the first die core and the second die core are prevented from being separated from the movable block.

10. The slider mold according to claim 1, wherein: draw zipper head mould still includes ejecting subassembly, ejecting subassembly includes mounting panel, push rod and the thimble, thimble fixed mounting in the mounting panel, mounting panel slidable mounting in back framed, the push rod with mounting panel fixed connection, the push rod drives the mounting panel and the thimble removes.