CN211763194U

CN211763194U - Tiny pitched roof mechanism and die thereof

Info

Publication number: CN211763194U
Application number: CN201922378902.XU
Authority: CN
Inventors: 谭柏赞
Original assignee: Hong Te Li Plastic Dongguan Co ltd
Current assignee: Hong Te Li Plastic Dongguan Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-27
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a tiny inclined ejection mechanism which is suitable for demoulding a product by back-off, and comprises a mold core, an inclined ejection and an ejector block; the inclined ejector is arranged on the ejector block in a sliding mode, and the sliding direction is intersected with the demolding direction; the mold core is provided with a chute, and the inclined top is slidably arranged on the chute; the ejector block is arranged on the mold core in a sliding manner along the demolding direction so as to eject a product and drive the inclined ejector to be separated from the product back-off during demolding. The utility model discloses tiny oblique top mechanism can make the problem of solving the product because of the narrow and small unable smooth drawing of patterns in back-off drawing of patterns space. In addition, the utility model discloses still disclose a mould that has this tiny oblique top mechanism.

Description

Tiny pitched roof mechanism and die thereof

Technical Field

The utility model relates to a mould especially relates to a tiny pushes up mechanism and mould to one side.

Background

When the existing mold is used for demolding the product back-off, an inclined ejection mechanism is generally used, and the inclined ejection mechanism is used for ejecting the product and simultaneously enabling the inclined ejection mechanism to slide relative to the mold so as to realize the back-off. The thickness of a common inclined top is generally 6-8 mm (or larger), and in the demolding process, the inclined top directly provides a large ejection force to enable a product to be demolded. Therefore, for the product with larger demoulding space, the common inclined top is thicker and longer, has enough strength and can directly eject the product.

However, when the product is subjected to a narrow back-off demolding space, for example, the demolding space is smaller than the thickness of the pitched roof, the size of the ordinary pitched roof cannot meet the demolding requirement, and the ordinary ejection mode is limited. If the thickness of the common pitched roof is directly reduced to meet the requirement of demoulding, the strength of the pitched roof is greatly reduced, products cannot be ejected, and the requirement of demoulding cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tiny oblique top mechanism, it can make the problem of solving the product because of the narrow and small unable smooth drawing of patterns in back-off drawing of patterns space.

Another object of the present invention is to provide a mold for smoothly releasing a product due to the narrow space of the reverse-buckling mold.

In order to achieve the purpose, the utility model provides a tiny angle ejection mechanism which is suitable for the product back-off demoulding and comprises a mould core, an angle ejector and an ejector block; the inclined ejector is arranged on the ejector block in a sliding mode, and the sliding direction is intersected with the demolding direction; the mold core is provided with a chute, and the inclined top is slidably arranged on the chute; the ejector block is arranged on the mold core in a sliding manner along the demolding direction so as to eject a product and drive the inclined ejector to be separated from the product back-off during demolding.

Compared with the prior art, the utility model has the advantages that the inclined ejector is arranged and is arranged on the ejector block in a sliding way, and the sliding direction is crossed with the demoulding direction; and the mold core is provided with a chute, so that the inclined top is arranged on the chute in a sliding manner, and the ejector block is used for ejecting a product and simultaneously driving the inclined top to be separated from the product back-off when the mold is demolded. The ejector block is utilized to directly eject a product, and the inclined ejector only needs to be separated from the reverse buckle when demoulding, so that the inclined ejector cannot be subjected to larger ejection force, the requirement on strength is low, and therefore, the inclined ejector can adapt to a narrow demoulding space by reducing the thickness, and smooth demoulding in the narrow demoulding space is further ensured.

Preferably, a sliding groove is formed in the ejector block, a protruding block is arranged on one side of the inclined top of the sliding groove, and the protruding block is in sliding fit with the sliding groove. Through the sliding groove with the lug cooperation can make the oblique top can be in accurate, smooth slip on the kicking block guarantees to break away from the product smoothly and falls off.

Preferably, the extending direction of the sliding groove is perpendicular to the sliding direction of the top block.

Preferably, the top block extends outward to form a limiting portion, the mold insert is provided with a limiting groove extending along the sliding direction of the top block, and the limiting portion is slidably disposed in the limiting groove. The limit groove is matched with the limit part, so that the ejection block is prevented from being ejected excessively, and the demolding is more accurate and stable.

Preferably, the thickness of the inclined top is 1.0mm to 1.2mm, and the length is less than or equal to 30 mm.

A mould comprises a front mould, a rear mould and a fine pitched roof mechanism, wherein the fine pitched roof mechanism is arranged on the rear mould, and the rear mould slides relative to the front mould.

Preferably, the rear mold is provided with a thimble, and the thimble is slidably arranged relative to the rear mold and abuts against the ejector block.

Specifically, the rear die is provided with an ejector plate, and the ejector plate is arranged in a sliding manner relative to the rear die and is connected with the ejector pins. The ejector plate transmits the ejecting force to each ejector pin, so that the stress of each ejector pin is uniform, and the product is smoothly demoulded.

Drawings

Fig. 1 is a structural diagram of the fine pitched roof mechanism of the present invention.

Fig. 2 is a schematic view of the fine pitched roof mechanism of the present invention in a mold.

Fig. 3 is a state diagram of the fine pitched roof mechanism of the utility model for demoulding the product.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses the mould is applicable to the drawing of patterns to product 200 back-off 201, reach including front mould, back mould tiny mechanism 100 that pushes up to one side, tiny mechanism 100 that pushes up to one side set up in the back mould, the back mould is relative the front mould slides.

Referring to fig. 1 and 2, the small lifter mechanism 100 includes a mold core 1, a lifter 2 and a lifter block 3; the mold insert 1 is arranged in the rear mold, the upper surface of the mold insert 1 is provided with a cavity 11, the upper end of the ejector block 3 is provided with a surface, and the surface of the ejector block 3 is exposed out of the bottom surface of the cavity 11, so that a mold cavity for the injection molding product 200 is formed between the wall surface of the cavity 11 of the mold insert 1 and the wall surface of the front mold. The number that the 2 of pushing up to one side can set up the correspondence according to product 200's back-off 201 number, the quantity of 2 of pushing up to one side is four, corresponds to the back-off 201 department at four angles of product 200 respectively, and the opening of product 200's back-off 201 is inboard. The inclined ejector 2 is slidably arranged on the ejector block 3, and the sliding direction is intersected with the demolding direction; specifically, the top block 3 is provided with a sliding groove 31, an extending direction of the sliding groove 31 is the same as an opening direction of the reverse buckle 201 of the product 200, and the extending direction of the sliding groove 31 is perpendicular to the sliding direction of the top block 3. One side of the inclined top 2 is provided with a convex block 21, and the convex block 21 is in sliding fit with the sliding groove 31. Through the sliding groove 31 and the lug 21 are matched, the inclined top 2 can accurately and stably slide on the top block 3, and the product 200 can be smoothly separated and fall off. The mold insert 1 is provided with a chute 12, and an included angle between the chute 12 and the sliding groove 31 is an acute angle. The inclined top 2 is slidably arranged on the inclined groove 12; the ejector block 3 is slidably disposed on the mold insert 1 along a mold-releasing direction, so as to eject the product 200 and drive the lifter 2 to disengage from the undercut 201 of the product 200 during mold releasing.

The top block 3 extends outwards to form a limiting part 32, and the limiting part 32 is columnar. The mold insert 1 is provided with a limit groove 13 extending along the sliding direction of the top block 3, and the limit portion 32 is slidably disposed in the limit groove 13. By utilizing the matching of the limiting groove 13 and the limiting part 32, the ejection block 3 can be prevented from being ejected excessively, so that the demolding is more accurate and stable.

The thickness of the inclined top 2 is 1.0mm to 1.2mm, and the length is less than or equal to 30 mm.

Referring to fig. 1 and 2, the rear mold is provided with a thimble 301, and the thimble 301 is slidably disposed relative to the rear mold and abuts against the top block 3. The rear die is provided with an ejector plate 302, and the ejector plate 302 is arranged in a sliding manner relative to the rear die and is connected with the ejector pins 301. The ejector pins 301 are uniformly stressed by transmitting the ejector thrust to the ejector pins 301 through the ejector pin plate 302, so that the product 200 is smoothly demoulded.

Referring to fig. 3, during demolding, the rear mold leaves the front mold, the ejector plate 302 is pushed by a connecting rod of the injection molding machine, the ejector plate 302 drives the ejector pin 301 to eject forwards, the ejector pin 301 pushes the ejector block 3 to slide, the ejector block 3 drives the lifter 2 to slide, at this time, the ejector block 3 ejects the product 200 out of the mold core 1, and meanwhile, the lifter 2 slides in the chute 12 and slides in the sliding groove 31, so that the top end of the lifter 2 corresponding to the back-off 201 moves towards the inside of the product 200, and the top end of the lifter 2 is separated from the back-off 201. When the limiting part 32 slides to the top end of the limiting groove 13, demolding is completed.

Compared with the prior art, the utility model has the advantages that the inclined top 2 is arranged, the inclined top 2 is arranged on the top block 3 in a sliding way, and the sliding direction is crossed with the demoulding direction; the mold core 1 is further provided with a chute 12, so that the inclined top 2 is slidably arranged on the chute 12, and thus, when the mold is demolded, the ejector block 3 ejects the product 200 and drives the inclined top 2 to be separated from the product 200 and the reverse buckle 201. Because utilize the kicking block 3 directly ejecting product 200, and the oblique top 2 only need break away from back-off 201 when the drawing of patterns can, make oblique top 2 can not receive great ejecting power like this to the requirement to intensity is little, consequently, can adapt to narrow and small demoulding space through reducing thickness, and then guarantee to demold smoothly in narrow and small demoulding space.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims

1. The utility model provides a tiny pushes up mechanism to one side, is applicable to the product back-off drawing of patterns, its characterized in that: comprises a mold core, an inclined top and a top block; the inclined ejector is arranged on the ejector block in a sliding mode, and the sliding direction is intersected with the demolding direction; the mold core is provided with a chute, and the inclined top is slidably arranged on the chute; the ejector block is arranged on the mold core in a sliding manner along the demolding direction so as to eject a product and drive the inclined ejector to be separated from the product back-off during demolding.

2. The fine pitched roof mechanism of claim 1, wherein: the ejector block is provided with a sliding groove, one side of the inclined top is provided with a convex block, and the convex block is in sliding fit with the sliding groove.

3. The fine pitched roof mechanism of claim 2, wherein: the extending direction of the sliding groove is perpendicular to the sliding direction of the top block.

4. The fine pitched roof mechanism of claim 1, wherein: the top block extends outwards to form a limiting part, the die core is provided with a limiting groove extending along the sliding direction of the top block, and the limiting part is slidably arranged in the limiting groove.

5. The fine pitched roof mechanism of claim 1, wherein: the thickness of the oblique top is 1.0mm to 1.2mm, and the length is less than or equal to 30 mm.

6. A mold, characterized in that: the fine pitched roof mechanism comprises a front die, a rear die and the fine pitched roof mechanism as claimed in any one of claims 1 to 5, wherein the fine pitched roof mechanism is arranged on the rear die, and the rear die slides relative to the front die.

7. The mold of claim 6, wherein: the rear die is provided with an ejector pin, and the ejector pin is arranged in a sliding manner relative to the rear die and abuts against the ejector block.

8. The mold of claim 7, wherein: the rear die is provided with an ejector plate, and the ejector plate is arranged in a sliding mode relative to the rear die and is connected with the ejector pins.