CN216182461U

CN216182461U - Novel die structure with secondary ejection function

Info

Publication number: CN216182461U
Application number: CN202122601155.9U
Authority: CN
Inventors: 蔡昌帮; 蔡瑞灵
Original assignee: Jiaxing Zhifeng Automobile Technology Co ltd
Current assignee: Jiaxing Zhifeng Automobile Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-04-05
Anticipated expiration: 2031-10-27

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a novel mold structure with a secondary ejection function. The utility model aims to solve the problem that in the prior art, a product can be hung on an inclined top, and an injection product is easily scratched when a manipulator is taken out. The utility model provides a novel mould structure with ejecting function of secondary, includes movable mould board and fixed die plate, has the shaping chamber between movable mould board and the fixed die plate, and one side that is close to the movable mould board is equipped with the bottom plate, be equipped with ejection mechanism between movable mould board and the bottom plate, ejection mechanism includes to one side subassembly and straight top subassembly, to one side the subassembly stops ejecting back, straight top subassembly continues ejecting messenger injection moulding product and the phase separation of subassembly of pushing up to one side. After the inclined ejection assembly is ejected, the straight ejection assembly can further realize secondary ejection, so that the injection product is separated from the inclined ejection assembly, and the injection product is prevented from being scratched when being taken out.

Description

Novel die structure with secondary ejection function

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a novel mold structure with a secondary ejection function.

Background

A plastic mold is a tool which is matched with a plastic molding machine in the plastic processing industry and gives a complete configuration and accurate dimension to a plastic product. Because of the variety and processing method of plastic, and the structure of plastic molding machines and plastic products are various, the variety and structure of plastic molds are also various. After the injection mold in the prior art is opened, the four-side lifter is used for ejecting once, after the product is completely separated from the mold core insert, the product can move along with the lifter on one side, the product can be hung on the lifter, and the injection product is easily scratched when a manipulator is taken out.

For example, the chinese utility model discloses an oblique top structure of taking oblique top thimble in injection mold [ application number: 201822001196.2], the utility model comprises a rear mold core, a rear mold core and a side sticking to the inclined top rod, a horizontal penetrating through the inclined top rod, an inclined top pin, an inclined top wear block and a driving piece, wherein the inclined top pin is arranged on the inclined top rod, the inclined top wear block is arranged in the injection mold and is provided with a guide inclined hole for the inclined top to match and pass, the driving piece drives the inclined top to move back and forth along the direction of the guide inclined hole, the inclined top rod is also provided with an elastic piece which drives one end of the inclined top pin to always abut against the inclined top shaft, the inclined top moving direction is arranged on the inclined top, the inclined top shaft comprises a first groove section, an inclined basic section and a second groove section which are sequentially connected in a transition way from bottom to top, when one end of the inclined top pin abuts against the inclined basic section, the other end of the inclined top pin extends out the inclined top rod and abuts against a product inverted hook area arranged on the rear mold core, and when one end of the inclined top pin is positioned in the deepest part of the first groove section or the second groove section, the other end of the inclined ejector pin retracts into the inclined ejector.

The utility model discloses a have the oblique ejector pin slip stroke of reducible, improve product stability, make the advantage of product quality assurance in the separation process, but it still does not solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a novel mold structure with a secondary ejection function, which can realize complete separation of an injection molding product from a buckling position and prevent the injection molding product from being scratched when being taken out.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a novel mould structure with ejecting function of secondary, includes movable mould board and fixed die plate, has the shaping chamber that is used for injection moulding product shaping between movable mould board and the fixed die plate, and one side that is close to the movable mould board is equipped with the bottom plate, be equipped with ejection mechanism between movable mould board and the bottom plate, ejection mechanism and movable mould board sliding connection, and ejection mechanism's one end extends to the shaping chamber bottom surface, ejection mechanism includes oblique top subassembly and straight top subassembly, the oblique top subassembly stops ejecting back, straight top subassembly continues ejecting messenger injection moulding product and oblique top subassembly phase separation.

In foretell novel mould structure with secondary ejection function, the oblique top subassembly is including pressing the first liftout plate of establishing on the bottom plate, be equipped with oblique top installation piece on the first liftout plate, oblique ejector pin one end is rotated and is connected on oblique top installation piece, and the other end extends to the shaping chamber bottom surface.

In the above-mentioned novel mould structure with secondary ejection function, the one end fixedly connected with kicking block that oblique ejector pin kept away from oblique top installation piece, the cross-sectional area of kicking block is greater than the cross-sectional area of oblique ejector pin, the one end that oblique ejector pin was kept away from to the kicking block has the inclined plane.

In foretell novel mould structure with ejecting function of secondary, directly push up the subassembly including pressing the second liftout plate of establishing on first liftout plate, oblique ejector pin runs through the second liftout plate, be equipped with on the second liftout plate and directly push up the installation piece, straight ejector pin one end fixed connection is on directly pushing up the installation piece, and the other end extends to the shaping chamber bottom surface, directly pushes up the subassembly and still includes the ejecting drive structure of secondary, the ejecting drive structure one end fixed connection of secondary is on the movable mould board, and other end fixed connection is on the second liftout plate.

In the above-mentioned novel mold structure with secondary ejection function, the end of the slanted ejector rod is located at the edge of the molding cavity, and the end of the straight ejector rod is located at the center of the molding cavity.

In foretell novel mould structure with ejecting function of secondary, ejecting drive structure of secondary includes that fixed connection drives actuating cylinder on the movable mould board, it is connected with the cylinder output shaft to drive actuating cylinder drive, the cylinder output shaft is kept away from the one end fixed connection who drives actuating cylinder and is on the second liftout plate.

In the above-mentioned novel mould structure with secondary ejection function, the straight ejector assembly still includes the spacing panel of pressure setting on the second liftout plate, oblique ejector pin and straight ejector pin all run through spacing panel and with spacing panel swing joint.

In the above novel mold structure with the secondary ejection function, the injection molded product comprises a front part and a rear part, the front part and the rear part are connected through a bone position, and the bone position protrudes out of the inner surfaces of the front part and the rear part.

In foretell novel mould structure with ejecting function of secondary, the surface of bone position has the recess, a plurality of mutual parallel arrangement's connecting rib has in the recess, the both ends of connecting rib respectively with anterior and rear portion fixed connection.

In the above-mentioned novel mold structure with secondary ejection function, the ejection mechanism further includes a limiting part, and one end of the limiting part extends to the bone position and is attached to the side surface of the bone position.

Compared with the prior art, the utility model has the advantages that:

1. after the inclined ejection assembly is ejected, the straight ejection assembly can further realize secondary ejection, so that the injection product is separated from the inclined ejection assembly, and the injection product is prevented from being scratched when being taken out.

2. The utility model is also provided with a limiting piece which can be matched with the bone position of the injection product, and the limiting piece is propped against the bone position in the demoulding process, so that the injection product can be effectively prevented from moving along with the inclined top, the injection product is further prevented from being scratched when being taken out, and the product quality is ensured.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of a portion of the structure of the present invention;

FIG. 3 is an exploded view of a portion of the structure of the present invention;

in the figure: the injection molding device comprises a movable mold plate 1, an ejection mechanism 2, a bottom plate 3, a molding cavity 4, an inclined ejection assembly 21, a straight ejection assembly 22, a limiting piece 23, an injection molding product 100, a front portion 101, a rear portion 102, a bone position 103, a groove 104, a connecting rib 105, a first ejection plate 211, an inclined ejection mounting block 212, an inclined ejection rod 213, an ejection block 214, an inclined surface 215, a second ejection plate 221, a straight ejection mounting block 222, a straight ejection rod 223, a secondary ejection driving structure 224, a driving cylinder 225, a cylinder output shaft 226 and a limiting panel 227.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a novel mould structure with secondary ejection function, as shown in figure 1, includes movable mould board 1 and fixed die plate (not shown in the figure), has the shaping chamber 4 that is used for injection moulding product 100 shaping between movable mould board 1 and the fixed die plate, and one side that is close to movable mould board 1 is equipped with bottom plate 3, be equipped with ejection mechanism 2 between movable mould board 1 and the bottom plate 3, ejection mechanism 2 and movable mould board 1 sliding connection, and ejection mechanism 2's one end extends to shaping chamber 4 bottom surface, ejection mechanism 2 includes oblique top subassembly 21 and straight top subassembly 22, after oblique top subassembly 21 stopped ejecting, straight top subassembly 22 continues ejecting messenger injection moulding product 100 and oblique top subassembly 21 phase separation.

When the injection molding machine is used, molten plastic in the injection molding machine is injected into the molding cavity 4 through the injection molding runner, and the injection molding product 100 is obtained after cooling. And opening the mold, moving the movable mold plate 1, moving the ejection mechanism 2 close to the movable mold plate 1 at the moment, performing primary ejection on the inclined ejection assembly 21, and performing secondary ejection on the straight ejection assembly 22 to separate the injection product 100 from the inclined ejection assembly 21. Therefore, after the inclined ejection assembly 21 is ejected, the straight ejection assembly 22 can further realize secondary ejection, so that the injection product 100 is separated from the inclined ejection assembly 21, and the injection product 100 is prevented from being scratched when being taken out.

As shown in fig. 3, the lifter assembly 21 includes a first ejector plate 211 pressed on the bottom plate 3, the first ejector plate 211 is provided with a lifter mounting block 212, one end of the lifter rod 213 is rotatably connected to the lifter mounting block 212, and the other end extends to the bottom surface of the forming cavity 4. One end of the oblique ejector rod 213, which is far away from the oblique ejector installation block 212, is fixedly connected with an ejector block 214, the cross-sectional area of the ejector block 214 is larger than that of the oblique ejector rod 213, and one end of the ejector block 214, which is far away from the oblique ejector rod 213, is provided with an inclined surface 215. This increases the contact area between the injection product 100 and the lifter, thereby reducing the surface pressure on the injection product 100 during the lifter ejection.

With reference to fig. 1 and 3, the straight ejection assembly 22 includes a second ejection plate 221 press-fitted on the first ejection plate 211, the oblique ejector rod 213 penetrates through the second ejection plate 221, the second ejection plate 221 is provided with a straight ejection mounting block 222, one end of the straight ejector rod 223 is fixedly connected to the straight ejection mounting block 222, the other end of the straight ejector rod extends to the bottom surface of the molding cavity 4, the straight ejection assembly 22 further includes a secondary ejection driving structure 224, one end of the secondary ejection driving structure 224 is fixedly connected to the movable mold plate 1, and the other end of the secondary ejection driving structure is fixedly connected to the second ejection plate 221. The end of the diagonal ejector rod 213 is located at the edge of the molding cavity 4, and the end of the straight ejector rod 223 is located at the center of the molding cavity 4.

Specifically, the secondary ejection driving structure 224 includes a driving cylinder 225 fixedly connected to the movable die plate 1, the driving cylinder 225 is connected to a cylinder output shaft 226 in a driving manner, and one end of the cylinder output shaft 226, which is far away from the driving cylinder 225, is fixedly connected to the second ejection plate 221.

After the mold is opened, the first ejector plate 211 and the second ejector plate 221 synchronously move close to the movable mold plate 1, at the moment, the ejector block 214 at the end part of the inclined ejector rod 213 abuts against the inner surface of the injection product 100 to realize primary ejection, after the first ejection is completed, the driving cylinder 225 is started, the driving cylinder 225 drives the second ejector plate 221 to move closer to the movable mold plate 1 through the cylinder output shaft 226, so that the straight ejector rod 223 is driven to realize secondary ejection, and the injection product 100 is separated from the inclined ejector.

As shown in fig. 1, the straight ejection assembly 22 further includes a limit panel 227 pressed on the second ejection plate 221, and the oblique ejection rod 213 and the straight ejection rod 223 both penetrate through the limit panel 227 and are movably connected with the limit panel 227. The position restriction panel 227 can restrict the positions of the diagonal ejector rod 213 and the straight ejector rod 223 penetrating therethrough within a certain range.

As shown in fig. 2, the injection molded product 100 includes an anterior portion 101 and a posterior portion 102, the anterior portion 101 and the posterior portion 102 are connected by a bone site 103, and the bone site 103 protrudes from the inner surfaces of the anterior portion 101 and the posterior portion 102. The outer surface of the bone position 103 is provided with a groove 104, a plurality of connecting ribs 105 which are arranged in parallel are arranged in the groove 104, and two ends of each connecting rib 105 are fixedly connected with the front part 101 and the rear part 102 respectively. The injection molded product 100 comprises an anterior portion 101 and a posterior portion 102, wherein the anterior portion 101 and the posterior portion 102 are connected by a bone site 103, and the bone site 103 protrudes from the inner surfaces of the anterior portion 101 and the posterior portion 102. The utility model is also provided with the limiting piece 23 which can be matched with the bone position 103 of the injection product 100, the limiting piece 23 is propped against the bone position 103 in the demoulding process, the injection product 100 can be effectively prevented from moving along with the top block 214, the injection product 100 is further ensured not to be scratched when being taken out, and the product quality is ensured.

The working principle of the utility model is as follows: when in use, the molten plastic in the injection molding machine is injected into the molding cavity 4 through the injection runner, and the injection molding product 100 is obtained after cooling. And opening the mold, moving the movable mold plate 1, synchronously moving the first ejector plate 211 and the second ejector plate 221 close to the movable mold plate 1, wherein the ejector block 214 at the end part of the inclined ejector rod 213 abuts against the inner surface of the injection product 100 to realize one-time ejection, and the limiting part 23 abuts against the bone position 103 of the injection product 100 to limit the movement of the injection product 100. After the first ejection is completed, the driving cylinder 225 is started, the driving cylinder 225 drives the second ejection plate 221 to move closer to the movable mold plate 1 through the cylinder output shaft 226, so that the straight ejection rod 223 is driven to realize secondary ejection, and the injection molding product 100 is separated from the inclined ejection. Therefore, after the inclined ejection assembly 21 is ejected, the straight ejection assembly 22 can further realize secondary ejection, so that the injection product 100 is separated from the inclined ejection assembly 21, and the injection product 100 is prevented from being scratched when being taken out.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms of the movable mold plate 1, the ejection mechanism 2, the bottom plate 3, the molding cavity 4, the lifter assembly 21, the straight-top assembly 22, the stopper 23, the injection molded product 100, the front portion 101, the rear portion 102, the rib 103, the groove 104, the connecting rib 105, the first ejector plate 211, the lifter mounting block 212, the lifter rod 213, the ejector block 214, the inclined surface 215, the second ejector plate 221, the straight-top mounting block 222, the straight-top rod 223, the secondary ejection driving structure 224, the driving cylinder 225, the cylinder output shaft 226, the stopper panel 227, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a novel mould structure with ejecting function of secondary, includes movable mould board (1) and fixed die plate, has between movable mould board (1) and the fixed die plate and is used for fashioned shaping chamber (4) of injection moulding product (100), and the one side that is close to movable mould board (1) is equipped with bottom plate (3), be equipped with ejection mechanism (2) between movable mould board (1) and bottom plate (3), ejection mechanism (2) and movable mould board (1) sliding connection, and the one end of ejection mechanism (2) extends to shaping chamber (4) bottom surface, its characterized in that: the ejection mechanism (2) comprises an inclined ejection assembly (21) and a straight ejection assembly (22), and after the inclined ejection assembly (21) stops ejecting, the straight ejection assembly (22) continues ejecting so that the injection molding product (100) is separated from the inclined ejection assembly (21).

2. The novel mold structure with secondary ejection function as claimed in claim 1, wherein: the inclined top component (21) comprises a first ejection plate (211) which is arranged on the bottom plate (3) in a pressing mode, an inclined top installation block (212) is arranged on the first ejection plate (211), one end of an inclined top rod (213) is rotatably connected to the inclined top installation block (212), and the other end of the inclined top rod extends to the bottom surface of the forming cavity (4).

3. The novel mold structure with secondary ejection function as claimed in claim 2, wherein: one end, far away from oblique top installation piece (212), of oblique ejector pin (213) is fixedly connected with ejector block (214), the cross-sectional area of ejector block (214) is greater than the cross-sectional area of oblique ejector pin (213), and the one end, far away from oblique ejector pin (213), of ejector block (214) has inclined plane (215).

4. The novel mold structure with secondary ejection function as claimed in claim 2, wherein: straight top subassembly (22) is including pressing second liftout plate (221) of establishing on first liftout plate (211), oblique ejector pin (213) run through second liftout plate (221), be equipped with straight top installation piece (222) on second liftout plate (221), straight ejector pin (223) one end fixed connection is on straight top installation piece (222), and the other end extends to shaping chamber (4) bottom surface, and straight top subassembly (22) still includes secondary ejection drive structure (224), secondary ejection drive structure (224) one end fixed connection is on movable mould board (1), and other end fixed connection is on second liftout plate (221).

5. The novel mold structure with secondary ejection function as claimed in claim 4, wherein: the end part of the inclined ejector rod (213) is positioned at the edge of the molding cavity (4), and the end part of the straight ejector rod (223) is positioned at the center of the molding cavity (4).

6. The novel mold structure with secondary ejection function as claimed in claim 4, wherein: the secondary ejection driving structure (224) comprises a driving cylinder (225) fixedly connected to the movable template (1), the driving cylinder (225) is connected with a cylinder output shaft (226) in a driving mode, and one end, far away from the driving cylinder (225), of the cylinder output shaft (226) is fixedly connected to the second ejection plate (221).

7. The novel mold structure with secondary ejection function as claimed in claim 4, wherein: the straight ejection assembly (22) further comprises a limiting panel (227) pressed on the second ejection plate (221), and the inclined ejection rod (213) and the straight ejection rod (223) penetrate through the limiting panel (227) and are movably connected with the limiting panel (227).

8. The novel mold structure with secondary ejection function as claimed in claim 1, wherein: the injection-molded product (100) comprises an anterior part (101) and a posterior part (102), wherein the anterior part (101) and the posterior part (102) are connected through a bone site (103), and the bone site (103) protrudes out of the inner surfaces of the anterior part (101) and the posterior part (102).

9. The novel mold structure with secondary ejection function as claimed in claim 8, wherein: the external surface of the bone position (103) is provided with a groove (104), a plurality of connecting ribs (105) which are arranged in parallel are arranged in the groove (104), and two ends of each connecting rib (105) are fixedly connected with the front part (101) and the rear part (102) respectively.

10. The novel mold structure with secondary ejection function as claimed in claim 8, wherein: the ejection mechanism (2) further comprises a limiting piece (23), and one end of the limiting piece (23) extends to the bone position (103) and is attached to the side face of the bone position (103).