CN217315482U - Ejection structure for quickly demoulding of thin-wall part mould - Google Patents

Abstract

The utility model discloses an ejector structure for rapid demoulding of a thin-walled part mold, comprising a lower mold and an upper mold, the upper mold is arranged directly above the lower mold, and the left part of the bottom side wall of the upper mold A punching die is fixed; the groove provided on the top side wall of the lower die is a top groove, the through hole provided at the lower right end of the top groove is an outlet, a template is provided in the top port of the top groove, and the The grooves provided on the top side wall of the left part and the bottom side wall of the right part are punching grooves, and the bottom side wall of the left part of the template and the top side wall of the right A rotating shaft is fixed in the central through hole to be rotatably connected to the lower die; the structure of the ejector includes a pressing plate and a plurality of top plates, each top plate is arranged at the bottom of a punching groove, and a top column is fixed at the bottom end of each top plate , and each top column is fixedly connected with the pressure plate after passing through the formwork. When the utility model is ejected, the stamping and forming work is not affected.

Description

An ejector structure for rapid demoulding of thin-walled molds

technical field

The utility model relates to the technical field of molds, in particular to an ejector structure for rapid demoulding of a thin-walled part mold.

Background technique

Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In a nutshell, a mold is a tool used to make a shaped item, this tool is made up of various parts, and different molds are made up of different parts. In addition to the mold itself, it also needs a mold base, a mold base, and a mold core to cause the ejection device of the product, etc. These parts are generally made into a general-purpose type.

The ejection structure of the prior art can realize the manual or automatic demoulding of the product, but the die needs to be stopped during the demolding process, which prolongs the die gap and reduces the efficiency of the punched product. Therefore, those skilled in the art provide an ejector structure for rapid demolding of a thin-walled part mold, so as to solve the above-mentioned problems in the background art.

Utility model content

In order to solve the above technical problems, the present invention provides an ejector structure for rapid demolding of thin-walled molds, including a lower mold and an upper mold, the upper mold is arranged directly above the lower mold, and the bottom of the upper mold is provided. The left part of the side wall is fixed with a punching die; the groove provided on the top side wall of the lower die is a top groove, the through hole provided at the lower right end of the top groove is an outlet, and a template is provided in the top port of the top groove , the grooves provided on the top side wall of the left part and the bottom side wall of the right part of the template are punching grooves, and the bottom side wall of the left part of the template and the top side wall of the right part are provided with ejectors , the central through hole of the template is fixed with a rotating shaft to be rotatably connected to the lower die; the structure of the ejector includes a pressure plate and several top plates, each top plate is arranged at the bottom of a punching groove, and the bottom of each top plate is A top column is fixed at the end, and each top column is fixedly connected with the pressing plate after passing through the formwork.

Preferably: a No. 1 spring is sleeved on each top post, and both ends of each No. 1 spring are respectively abutted on the template and the pressing plate.

Preferably: a positioning column is fixed on the bottom side of the four corners of the upper mold, each positioning column is sleeved with a No. 3 spring, and the bottoms of the four positioning columns are respectively inserted into the positioning holes of the four corners of the lower mold middle.

Preferably, a support member is provided on the left and right sides of the top groove.

Preferably: the structure of each support member includes a support block, a guide post and a push block, the wedge-shaped block with the top of the support block protruding upward is a wedge-shaped head, and the support block is arranged in the top notch of the side wall of the top groove; The guide post is arranged in the side wall through hole of the lower die, the left end of the guide post is fixed with a limiting head, the left part is sleeved with a No. 2 spring, and the inner end of the guide post is fixedly connected with the support block; the push block It is fixed on the bottom side wall of the upper die, and the push block is aligned up and down with the wedge head.

Preferably: the upper side of the upper mold is provided with a hydraulic cylinder, the rear side of the lower mold is provided with a motor, the rotor of the motor is fixedly connected with the rotating shaft, the controller controls the hydraulic cylinder to shrink and leave the upper mold, and then controls the motor The drive shaft rotates one hundred and eighty degrees.

Technical effects and advantages of the present utility model:

1. The utility model is provided with a template. After the thin plate is punched and formed by the die on the top and side walls of the left half of the template, it is then turned over to the lower right side by the motor drive, and then the upper die is used to press the movable platen so that the push plate will be pushed into the punching groove. At the same time, the new sheet can be punched on the upper left side of the template without affecting the punched product.

2. The utility model is provided with a support. Before the die punches the thin plate, the push block first contacts the wedge head and pushes the support block to move inward, so that the support block moves to the bottom end of the template to prevent the template from rotating during punching.

Description of drawings

1 is a schematic structural diagram of an ejection structure for rapid demolding of a thin-walled part mold provided by an embodiment of the present application;

2 is a schematic diagram of the left structure of the template of the ejection structure for the rapid demolding of the thin-walled part mold provided by the embodiment of the present application;

FIG. 3 is a schematic structural diagram of the upper left corner of the lower mold of the ejector structure for rapid demolding of the thin-walled part mold provided by the embodiment of the present application.

In the figure: lower die 10, top groove 11, outlet 12, template 13, punching groove 14, rotating shaft 15, top plate 16, top column 17, pressure plate 18, No. 1 spring 19, motor 20, support block 21, wedge head 22, Guide post 23 , limit head 24 , No. 2 spring 25 , upper die 26 , punch 27 , push block 28 , positioning post 29 , No. 3 spring 30 .

Detailed ways

The present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are presented for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for the design of various embodiments with various modifications as are suited to the particular use.

Example 1

Referring to FIGS. 1 to 3 , in this embodiment, an ejector structure for rapid demolding of a thin-walled part mold is provided, including a lower mold 10 and an upper mold 26 , and the upper mold 26 is disposed directly above the lower mold 10 . , the left part of the bottom side wall of the upper die 26 is fixed with a die 27 for stamping and forming; the groove provided on the top side wall of the lower die 10 is a top groove 11, and the lower right end of the top groove 11 The provided through hole is the outlet 12, the top port of the top groove 11 is provided with a template 13, and the grooves provided on the top side wall of the left part and the bottom side wall of the right part of the template 13 are punching grooves 14, so The bottom side wall of the left part and the top side wall of the right part of the template 13 are provided with ejector parts, and the central through hole of the template 13 is fixed with a rotating shaft 15 to be rotatably connected to the lower mold 10, so that the template 13 can be mounted on the top. The structure of the ejector includes a pressing plate 18 and a plurality of top plates 16, each top plate 16 is arranged at the bottom of a punching groove 14, and is used for withdrawing the products in the punching groove 14. Each top plate 16 A top post 17 is fixed at the bottom end of the clasp, and each top post 17 is fixedly connected with the pressing plate 18 after passing through the template 13 .

A No. 1 spring 19 is sleeved on each top post 17 , and both ends of each No. 1 spring 19 abut on the template 13 and the pressing plate 18 respectively to push the top post 17 to reset.

The bottom side of the four corners of the upper mold 26 is fixed with a positioning column 29, each positioning column 29 is sleeved with a No. 3 spring 30, and the bottoms of the four positioning columns 29 are respectively inserted into the four corners of the lower mold 10. in the positioning hole for guiding and buffering.

The left and right sides of the top groove 11 are respectively provided with a support piece. The structure of each support piece includes a support block 21 , a guide post 23 and a push block 28 . 22. The support block 21 is arranged in the top notch of the side wall of the top groove 11 to support the template 13; the guide post 23 is arranged in the through hole of the side wall of the lower die 10, and the left end of the guide post 23 is fixed to a limited extent. The position head 24 and the left part are covered with a No. 2 spring 25, and the inner end of the guide post 23 is fixedly connected with the support block 21 to guide the left and right movement of the support block 21; the push block 28 is fixed on the bottom of the upper die 26. On the side wall, the push block 28 is vertically aligned with the wedge head 22 for pushing the support block 21 to move.

The upper side of the upper die 26 is provided with a hydraulic cylinder, the rear side of the lower die 10 is provided with a motor, the rotor of the motor 20 is fixedly connected with the rotating shaft 15, and the controller controls the hydraulic cylinder to shrink and leave the upper die, and then controls The motor 20 drives the shaft 15 to rotate 180 degrees to prevent the template 13 from hitting the upper mold 26 when it is turned over.

The working principle of the utility model: when in use, the controller is used to control the hydraulic cylinder and the motor 20 to work together; the thin plate is placed on the top and side walls of the left part of the template 13, and then the hydraulic cylinder is stretched and the upper die 26 is pressed downwards. Moving downward, the push block 28 first contacts the wedge head 22 and then pushes the support block 21 inward, so that the support block 21 protrudes into the bottom side wall of the template 13 to support the template 13 horizontally; The thin plate is punched and embedded in the punching groove 14 for forming; then the hydraulic cylinder shrinks so that the upper die 26 moves upward under the action of the No. 3 spring 30. After the push block 28 leaves the wedge head 22, the No. 2 spring 25 pushes the guide post 23 to the outside, so that the The guide post 23 pulls the support block 21 to the outside, so that the support block 21 leaves the die plate 13; when the hydraulic cylinder leaves the upper die 26, the motor 20 drives the shaft 15 to rotate 180 degrees, so that the die plate 13 is turned 180 degrees, so that The formed sheet is rotated to the lower right side of the template 13; then the new sheet is placed on the upper side wall of the left part of the template 13, and the hydraulic cylinder drives the upper die 26 to move down again to stamp the sheet, while the upper die 26 presses down the right side. The side pressing plate 18 makes the top column 17 push the top plate 16 downward, so that the top plate 16 punches the product in the punching groove 14 down, and the product falls under the top groove 11 and slides out from the outlet 12 . When the utility model is ejected, the stamping and forming work is not affected.

Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art and related fields without creative work shall fall within the protection scope of the present invention. The structures, devices and operation methods that are not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to conventional means in the art.

Claims (5)

1. The ejection structure for the rapid demoulding of the thin-wall part mould is characterized by comprising a lower mould (10) and an upper mould (26), wherein the upper mould (26) is arranged right above the lower mould (10), and a punching mould (27) is fixed at the left part of the bottom side wall of the upper mould (26); the die comprises a lower die (10), a die plate (13) and a rotating shaft (15), wherein a groove formed in the top side wall of the lower die (10) is a top groove (11), a through hole formed in the right lower end of the top groove (11) is an outlet (12), a die plate (13) is arranged in a top end opening of the top groove (11), grooves formed in the top side wall of the left part and the bottom side wall of the right part of the die plate (13) are punching grooves (14), ejecting pieces are arranged on the bottom side wall of the left part and the top side wall of the right part of the die plate (13), and the rotating shaft (15) is fixed in a central through hole of the die plate (13) and is rotatably connected with the lower die (10); the structure of the ejection piece comprises a pressing plate (18) and a plurality of top plates (16), each top plate (16) is arranged at the bottom of one punching groove (14), one ejection column (17) is fixed at the bottom end of each top plate (16), and each ejection column (17) penetrates through the template (13) and then is fixedly connected with the pressing plate (18).

2. The ejection structure for the rapid demoulding of the thin-wall part mould according to the claim 1, characterized in that each ejection column (17) is sleeved with a first spring (19), and two ends of each first spring (19) respectively abut against the mould plate (13) and the pressure plate (18).

3. The ejection structure for the rapid demolding of thin-walled workpiece molds as claimed in claim 1, wherein a positioning column (29) is fixed to each of the bottom sides of the four corners of the upper mold (26), a third spring (30) is sleeved on each positioning column (29), and the bottoms of the four positioning columns (29) are inserted into the positioning holes of the four corners of the lower mold (10) respectively.

4. The ejection structure for the rapid demoulding of the thin-wall part mould according to the claim 1, characterized in that the left side and the right side of the top groove (11) are respectively provided with a supporting piece.

5. The ejection structure for the rapid demoulding of the thin-wall part mould according to claim 4, wherein the structure of each supporting piece comprises a supporting block (21), a guide pillar (23) and a pushing block (28), the top end of the supporting block (21) protrudes upwards to form a wedge-shaped block which is a wedge-shaped head (22), and the supporting block (21) is arranged in a top end gap of the side wall of the top groove (11); the guide post (23) is arranged in a through hole in the side wall of the lower die (10), a limiting head (24) is fixed at the left end of the guide post (23), a second spring (25) is sleeved at the left end of the guide post (23), and the inner side end of the guide post (23) is fixedly connected with the support block (21); the push block (28) is fixed on the bottom side wall of the upper die (26), and the push block (28) is vertically aligned with the wedge-shaped head (22).

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