CN211941903U

CN211941903U - A tooth pushes up structure to one side in spiral cover for mould drawing of patterns

Info

Publication number: CN211941903U
Application number: CN202020120059.5U
Authority: CN
Inventors: 刘伟伟
Original assignee: Hongrita Mold Shenzhen Co ltd
Current assignee: Hongrita Mold Shenzhen Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-11-17
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a tooth pushes up structure to one side in spiral cover for mould drawing of patterns, including the back mould, the higher authority of back mould is inlayed and is connected with the big body of back mould, the below of back mould is provided with the thimble board, the thimble board with be provided with the structure of pushing up to one side between the back mould, the guide cylinder is installed to the higher authority of the big body of back mould, the thimble board promotes the structure of pushing up to one side is followed wear out in the guide cylinder. The utility model discloses a tooth pushes up structure to one side in spiral cover, simple structure, simple to operate, with low costs, the action is nimble, the cycle is short, the product is good, tooth or the product of medial zone back-off in being adapted to multiple spiral cover are ejecting simultaneously when taking off interior tooth, and the yield is high, the stable quality.

Description

A tooth pushes up structure to one side in spiral cover for mould drawing of patterns

Technical Field

The utility model relates to a mould drawing of patterns technical field specifically is a tooth pushes up structure to one side in spiral cover for mould drawing of patterns.

Background

At present, products with internal teeth or inverted buckles of the existing screw cap are usually demolded in three modes, one mode is that the products are damaged by pulling when the products are forcedly demolded by using the traditional technology, the other mode is that a gear structure is driven by an oil cylinder, the cost is quite high, the processing is difficult and the assembly is difficult, and the other mode is that the products are demolded by using an internal tooth demolding structure, so that the cost is high due to the increase of a mold; therefore, it is an urgent problem to design a mold release structure that is cost effective and difficult to process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tooth pushes up structure to one side in spiral cover for mould drawing of patterns, through tooth pushes up structure to one side in the spiral cover and replaces traditional drawing of patterns mode, has simple structure, simple to operate, with low costs, and the action is nimble, advantage such as cycle weak point, product is good, has solved the problem of proposing in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tooth pushes up structure to one side in spiral cover for mould drawing of patterns, includes the back mould, the higher authority of back mould is inlayed and is connected with the big body of back mould, the below of back mould is provided with the thimble board, the thimble board with be provided with the structure of pushing up to one side between the back mould, the guide cylinder is installed to the higher authority of the big body of back mould, the thimble board promotes the structure of pushing up to one side is followed wear out in the guide cylinder.

Preferably, the inclined ejecting structure comprises an ejector rod, the bottom end of the ejector rod is movably connected with the upper surface of the ejector plate, and the ejector rod extends into the top end of the guide cylinder and is fixedly connected with an inclined ejecting block.

Preferably, the bottom outer wall of ejector pin has seted up detains the position, the top grafting of thimble board is fixed with the fixing base, the inside of fixing base seted up with detain the trench of position joint.

Preferably, the number of the ejector rods is consistent with that of the inclined ejector blocks, the number of the ejector rods is not less than four, and the inclined ejector blocks are arranged in a circular manner around the circle center of the guide cylinder.

Preferably, the top of the guide cylinder on the inner side of each inclined ejector block is fixedly connected with a rear mold insert, and the rear mold insert is closed together with each inclined ejector block in a normal state.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses a tooth pushes up structure to one side in spiral cover, simple structure, simple to operate, with low costs, the action is nimble, the cycle is short, the product is good, tooth or the product of medial zone back-off in being adapted to multiple spiral cover, it is ejecting simultaneously when taking off interior tooth or inboard back-off in the drawing of patterns, the yield is high, the stable quality.

Drawings

FIG. 1 is a schematic structural diagram of a rear mold perspective view of the present invention;

fig. 2 is a schematic structural diagram of a side view of the rear mold of the present invention;

fig. 3 is a schematic structural diagram of a top view of the rear mold of the present invention;

fig. 4 is a schematic structural view of the present invention along the sectional view a-a in fig. 3.

In the figure: 1-rear die, 2-rear die large body, 3-ejector plate, 4-inclined top structure, 41-ejector rod, 411-buckling position, 42-inclined top block, 43-fixed seat, 431-groove position, 44-rear die insert and 5-guide cylinder

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 to 4, the present invention provides a technical solution: the utility model provides a tooth pushes up structure to one side in spiral cover for mould drawing of patterns, includes back mould 1, and the higher authority of back mould 1 is inlayed and is connected with back mould big body 2, and the below of back mould 1 is provided with thimble board 3, is provided with between thimble board 3 and the back mould 1 and pushes up structure 4 to one side, and guide cylinder 5 is installed to the higher authority of back mould big body 2, and thimble board 3 promotes to push up structure 4 to one side and wears out from guide cylinder 5, and then pushes up structure 4 to one side gives the jack-up with the fashioned product in back mould 1 top.

Specifically, the pitched roof structure 4 comprises an ejector rod 41, the bottom end of the ejector rod 41 is movably connected with the upper surface of the ejector plate 3, the ejector rod 41 extends into a top end fixedly connected with a pitched roof block 42 in the guide cylinder 5, when the ejector plate 3 is pushed up, the ejector rod 41 is pitched, the pitched roof block 42 acts on the screw cap to jack up the formed screw cap, and the screw cap can be smoothly demoulded.

Furthermore, the outer wall of the bottom end of the ejector rod 41 is provided with a buckling position 411, the top of the ejector plate 3 is fixedly connected with a fixed seat 43 in an inserting mode, and a slot 431 clamped with the buckling position 411 is formed in the fixed seat 43, so that the ejector rod 41 and the ejector plate 3 can be conveniently disassembled.

Further, the quantity of ejector pin 41 is unanimous with oblique kicking block 42, and all be no less than four, and each oblique kicking block 42 all with the centre of a circle annular array of circular guide cylinder 5 for the product atress is more even, and the drawing of patterns is more smooth, and the difficult problem that takes place each position drawing of patterns process differentiation, tear in the time of the drawing of patterns, and as shown in the drawing, the oblique top structure 4 on the big body 2 of back mould can set up the multiunit side by side, and this multiunit promotes by an ejector plate 3, can accomplish a plurality of products of once only drawing of patterns like this.

Furthermore, the top of the guide cylinder 5 inside each inclined ejecting block 42 is fixedly connected with a rear mold insert 44, the rear mold insert 44 is normally folded with each inclined ejecting block 42 to form a cylindrical body inside the screw cap, so that a cavity of the screw cap is formed after injection molding, and the outer side of the inclined ejecting block 42 is provided with a thread, so that an internal thread of the screw cap is formed after injection molding, during demolding, along with the inclined upward movement of the ejector rod 41, each inclined ejecting block 42 is gradually drawn close, the rear mold body 2, the guide cylinder 5 and the rear mold insert 44 are fixed, so that the outer diameter of the structure surrounded by each inclined ejecting block 42 is smaller than the outer diameter of the cylindrical body before demolding, at the moment, the screw cap can be directly taken down without being rotated and disassembled, time and labor are saved, and demolding is fast.

The working principle is as follows: when the screw cap inner tooth inclined ejecting structure for mold stripping is used, firstly, before injection molding, the ejector plate 3 moves downwards due to gravity, the rear mold 1 can be supported and fixed on a table top through a supporting leg, then the front mold is covered, a melted material is poured from an injection port on the front mold, the rear mold insert 44 is normally folded with each inclined ejecting block 42 to form a cylindrical body at the inner side of the screw cap, so that a cavity of the screw cap is formed after injection molding, in addition, the outer side of each inclined ejecting block 42 is provided with a thread, so that an internal thread of the screw cap is formed after injection molding, after cooling molding, the front mold is detached, then the ejector plate 3 is pushed upwards to drive the ejector rod 41 to move upwards in an inclined mode, each inclined ejecting block 42 is gradually closed, the outer diameter of the rear mold large body 2, the guide cylinder 5 and the rear mold insert 44 is fixed, so that the outer diameter of a structure enclosed by each inclined ejecting block 42 is smaller than the outer diameter of the cylindrical body before stripping, the screw cap can be directly taken down without being rotated and detached, so that time and labor are saved, and the demoulding is quick.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tooth pushes up structure to one side in spiral cover for mould drawing of patterns, includes back mould (1), its characterized in that: the upper surface of the rear die (1) is connected with a rear die large body (2) in an embedded mode, an ejector plate (3) is arranged below the rear die (1), an inclined ejection structure (4) is arranged between the ejector plate (3) and the rear die (1), a guide cylinder (5) is installed on the upper surface of the rear die large body (2), and the ejector plate (3) pushes the inclined ejection structure (4) to penetrate out of the guide cylinder (5).

2. The screw cap inner thread pitched roof structure for the demolding of molds of claim 1, wherein: the inclined ejection structure (4) comprises an ejector rod (41), the bottom end of the ejector rod (41) is movably connected with the upper surface of the ejector plate (3), and the ejector rod (41) extends into the top end of the guide cylinder (5) and is fixedly connected with an inclined ejection block (42).

3. The screw cap inner thread pitched roof structure for the demolding of molds of claim 2, wherein: detain position (411) have been seted up to the bottom outer wall of ejector pin (41), the top of thimble board (3) is pegged graft and is fixed with fixing base (43), the inside of fixing base (43) seted up with detain trench (431) of position (411) joint.

4. The screw cap inner thread pitched roof structure for the mold stripping as claimed in claim 2 or 3, characterized in that: the number of the ejector rods (41) is consistent with that of the inclined ejector blocks (42), the number of the ejector rods is not less than four, and the inclined ejector blocks (42) are arrayed in a circular manner at the circle center of the guide cylinder (5).

5. The screw cap inner thread pitched roof structure for the demolding of molds of claim 4, wherein: the top of the guide cylinder (5) on the inner side of each inclined ejecting block (42) is fixedly connected with a rear mold insert (44), and the rear mold insert (44) is normally folded with each inclined ejecting block (42).