CN210651721U

CN210651721U - Inclined ejection back-off mechanism for die

Info

Publication number: CN210651721U
Application number: CN201921658188.3U
Authority: CN
Inventors: 郭荣灼; 王志斌
Original assignee: Dongguan Yuxin Plastic Mould Co ltd
Current assignee: Dongguan Yuxin Plastic Mould Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-02
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to the technical field of molds, and in particular to an oblique ejection undercut mechanism for molds, wherein a first slider is provided with a transverse inclined surface and a release assembly that reciprocates along the transverse inclined surface, and the release assembly comprises a second slider that is slidably connected to the transverse inclined surface, a longitudinal inclined surface provided on the second slider, and a reverse release block that slides along the longitudinal inclined surface, wherein the second slider is provided with an oblique guide groove that is consistent with the inclination angle of the longitudinal inclined surface, and the reverse release block is provided with an oblique guide portion that is slidably connected to the oblique guide groove. The slider and the inclined surface design are cleverly applied to achieve rapid positioning during injection molding, rapid reverse movement during demoulding to achieve rapid and reliable demoulding, and the overall structure is compact and reliable.

Description

Inclined ejection back-off mechanism for die

Technical Field

The utility model belongs to the technical field of the mould technique and specifically relates to indicate a mould is with ejecting back-off mechanism to one side.

Background

The die is various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The method realizes the processing of the shape of an article mainly by changing the physical state of a formed material, and enables a blank to be a tool of a workpiece with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

In the manufacturing process of an injection mold, the injection molding back-off condition often exists, at this time, the conventional direct demolding structure design cannot be adopted, and the structure of the back-off part needs to be designed emphatically so that the product can be demolded smoothly. Wherein the back-off drawing of patterns of moulding plastics of the medial surface of arc product spare is comparatively difficult, and there is a plurality of local back-off condition in the medial surface of general arc product spare, in time targets in place when needing to mould plastics, and the required space of drawing of patterns is vacated in rapid reverse movement during the drawing of patterns, and present factory design is different, but reliability and compactedness are not good enough, and the structure is comparatively complicated to be unfavorable for manufacturing use and popularization.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a mould is with ejecting back-off mechanism to one side, ingenious application slider and inclined plane design, target in place fast when reaching to mould plastics, rapid reverse movement realizes quick reliable drawing of patterns during the drawing of patterns, and overall structure is compact reliable.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a mould is with oblique back-off mechanism that pushes up, includes first slider and the first drive arrangement of the first slider reciprocating sliding of drive, first slider is provided with horizontal inclined plane and along horizontal inclined plane reciprocating sliding's dropout subassembly, and this dropout subassembly includes the second slider on the horizontal inclined plane of sliding connection, sets up in the longitudinal inclined plane of second slider and along the gliding reverse dropout piece in longitudinal inclined plane, the second slider is provided with the inclined guide way of putting with longitudinal inclined plane inclination is unanimous, and reverse dropout piece is provided with sliding connection in the inclined guide part of putting the guide way to one side.

Preferably, the number of the longitudinal inclined planes is two, the two longitudinal inclined planes are respectively arranged on the upper side surface and the lower side surface of the second sliding block, the tail end parts of the two longitudinal inclined planes are close to the middle of the second sliding block, the number of the reverse tripping blocks is two, and the two reverse tripping blocks are respectively arranged corresponding to the two longitudinal inclined planes.

Preferably, the two longitudinal inclined surfaces are provided with mutually communicated sliding grooves, and one of the reverse trip blocks is provided with a sliding guide rod which extends through the sliding grooves and is connected with the other reverse trip block.

Preferably, the second sliding block is provided with a stable abutting surface which is connected with one end of the longitudinal inclined surface and abutted against the back surface of the reverse tripping block, the inclined guide groove is arranged in the stable abutting surface and extends inwards, and the inclined guide part extends from the back surface of the reverse tripping block and is inserted into the inclined guide groove.

Preferably, the firm butt face is provided with first mounting groove and installs in the elastic component of first mounting groove, the back of reverse trip block is provided with the second mounting groove that aligns with first mounting groove, and the other end of elastic component extends the butt in the second mounting groove, and the inclination of this first mounting groove and second mounting groove all is unanimous with the inclination on longitudinal slope.

Preferably, the transverse inclined plane is provided with a convex sliding guide table, and the second sliding block is provided with a fastening sliding groove corresponding to the sliding guide table.

Preferably, the number of the transverse inclined planes is two, the two transverse inclined planes are respectively arranged on two side faces of the first sliding block, the tail end portions of the two transverse inclined planes are close to the middle of the first sliding block, the number of the tripping assemblies is two, and the two tripping assemblies are respectively arranged corresponding to the two transverse inclined planes.

The beneficial effects of the utility model reside in that: the utility model provides a mould is with oblique back-off mechanism that pushes out, in the actual production activity in-process, this mechanism design is applied to in the mould, combines other mould structures to form a complete interior die cavity promptly, then obtains the product through injection moulding, and other mould structure parts that combine with this application mechanism can refer to conventional mould structural design, also can refer to the structural part that this application drawing demonstrates, and the technical personnel in the art can learn other mould structure parts that can combine with this application mechanism without paying creative work.

This application mechanism is in the operation in-process, order about first slider reciprocal horizontal slip through first drive arrangement, and the second slider can be because of short distance's slip around the design realization on horizontal inclined plane, reverse trip block's terminal portion can be because of longitudinal inclined plane when the second slider backward moves the slip, the design with longitudinal inclined plane inclination unanimous oblique guide way and oblique guide part realizes the short distance and moves down or the slip that shifts up, realize that the product accomplishes to accomplish behind the moulding plastics and accomplish the dropout action to product medial surface reverse movement, so that the smooth drawing of patterns of follow-up product. The rearward movement of the second slider gives a space for the distal end portion of the reverse trip block to move downward or upward, and the rearward movement of the longitudinal slope and the slanted guide groove provides a force to the slanted guide portion, thereby causing the reverse movement of the distal end portion of the reverse trip block to complete the trip. This application mechanism overall design is compact reliable, and reverse dropout can not scratch the product rapidly, and the practicality is strong.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of the first slider, the first driving device and the trip assembly of the present invention.

Fig. 3 is a schematic perspective view of the first slider and the trip assembly at another view angle according to the present invention.

Fig. 4 is a schematic view of the three-dimensional structure of the second slider, the reverse trip block and the elastic member of the present invention.

Fig. 5 is an exploded view of the three-dimensional structure of the middle release assembly of the present invention.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention.

As shown in fig. 1 to 5, an inclined ejecting and reversing mechanism for a mold includes a first slider 1 and a first driving device 11 for driving the first slider 1 to slide reciprocally, the first slider 1 is provided with a transverse inclined surface 12 and a tripping assembly 2 sliding reciprocally along the transverse inclined surface 12, the tripping assembly 2 includes a second slider 21 slidably connected to the transverse inclined surface 12, a longitudinal inclined surface 22 provided on the second slider 21, and a reverse tripping block 23 sliding along the longitudinal inclined surface 22, the second slider 21 is provided with an inclined guide groove 24 having an inclination angle identical to that of the longitudinal inclined surface 22, and the reverse tripping block 23 is provided with an inclined guide portion 25 slidably connected to the inclined guide groove 24.

The mold of the embodiment uses the angle ejection back-off mechanism, in the actual production process, the mechanism design is applied to the mold, namely, the mechanism is combined with other mold structures to form a complete inner mold cavity, then the product is obtained through injection molding and shaping, other mold structure parts combined with the application mechanism can refer to the conventional mold structure design, and also can refer to the structure part shown in the attached drawing of the application, and the skilled person can know other mold structure parts combined with the application mechanism without creative work.

This application mechanism is in the operation in-process, order about first slider 1 reciprocal horizontal slip through first drive arrangement 11, and second slider 21 can be because of the design of horizontal inclined plane 12 realizes the short distance slip around, when second slider 21 back shift slip the time reverse trip block 23 the terminal portion can be because of longitudinal inclined plane 22, with the design of longitudinal inclined plane 22 inclination unanimous oblique guide way 24 and oblique guide part 25 realize the short distance move down or the slip that shifts up, realize the product accomplish to product medial surface reverse movement after moulding plastics and accomplish the tripping action, so that the smooth drawing of patterns of follow-up product. The backward movement of the second slider 21 gives a space for the downward movement or the upward movement of the distal end portion of the reverse trip block 23, and the backward movement of the longitudinal slope 22 and the slanted guide groove 24 provides a force to the slanted guide portion 25, thereby causing the reverse movement of the distal end portion of the reverse trip block 23 to be completely tripped. This application mechanism overall design is compact reliable, and reverse dropout can not scratch the product rapidly, and the practicality is strong.

In this embodiment, the number of the longitudinal inclined planes 22 is two, the two longitudinal inclined planes 22 are respectively disposed on the upper side surface and the lower side surface of the second slider 21, the end portions of the two longitudinal inclined planes 22 are both close to the middle of the second slider 21, the two reverse trip blocks 23 are disposed, and the two reverse trip blocks 23 are respectively disposed corresponding to the two longitudinal inclined planes 22. The upper side surface and the lower side surface of the second sliding block 21 are respectively provided with the reverse tripping blocks 23 so as to meet the tripping requirements of the upper side surface and the lower side surface of the inner end of the product, the structural design of the inner end surface of the product can be flexibly designed, and the adaptability is wide.

In this embodiment, the two longitudinal ramps 22 are provided with mutually communicating slide grooves 26, wherein one counter trip block 23 is provided with a slide guide 27, which slide guide 27 extends through the slide groove 26 to connect with the other counter trip block 23. The sliding groove 26 is matched with the design of the sliding guide rod 27 to better and practically install and limit the reverse trip block 23, so that the reverse trip block 23 is more attached to the longitudinal inclined surface 22 to realize short-distance upward or downward movement at the tail end part.

In this embodiment, the second slider 21 is provided with a stable abutting surface 28 connected to one end of the longitudinal inclined surface 22 and abutting against the back surface of the reverse trip block 23, the inclined guide groove 24 is provided in the stable abutting surface 28 to extend inward, and the inclined guide portion 25 extends from the back surface of the reverse trip block 23 and is inserted into the inclined guide groove 24. The inclined guide slot 24 is disposed on the stable abutting surface 28 to better realize the consistent inclination angle with the longitudinal inclined surface 22, and the inclined guide portion 25 for facilitating reverse trip is designed to directly extend and protrude from the back surface.

In this embodiment, the stable abutting surface 28 is provided with a first mounting groove 3 and an elastic member 31 installed in the first mounting groove 3, the back surface of the reverse trip block 23 is provided with a second mounting groove 32 aligned with the first mounting groove 3, the other end of the elastic member 31 extends to abut against the second mounting groove 32, and the inclination angles of the first mounting groove 3 and the second mounting groove 32 are the same as the inclination angle of the longitudinal inclined surface 22. The design of the elastic piece 31 can better promote the short-distance upward movement or downward movement of the tail end part of the reverse trip, so that the reliability of the reverse trip is further improved, and the production quality is ensured.

In this embodiment, the lateral inclined surface 12 is provided with a convex sliding guide table 13, and the second slider 21 is provided with a fastening sliding groove 29 corresponding to the sliding guide table 13. The guide table of the transverse inclined surface 12 is matched with the buckling chute to realize that the second slide block 21 is driven to slide back and forth in a short distance when the first slide block 1 slides horizontally left and right. The final mold cavity structure is provided with a structure for limiting the movement of the second slide block 21 in other directions, so that when the first slide block 1 slides horizontally left and right, the second slide block 21 can only slide back and forth for a short distance due to the transverse inclined surface 12.

In this embodiment, the number of the transverse inclined planes 12 is two, the two transverse inclined planes 12 are respectively disposed on two side surfaces of the first slider 1, end portions of the two transverse inclined planes 12 are both close to the middle of the first slider 1, the two trip assemblies 2 are disposed, and the two trip assemblies 2 are respectively disposed corresponding to the two transverse inclined planes 12. Two tripping assemblies 2 are arranged to adapt to a plurality of tripping conditions of the inner end face of a product, so that the adaptability is further enhanced, and the flexibility is strong.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The oblique ejection and undercut mechanism for molds includes a first sliding block (1) and a first driving device (11) that drives the first sliding block (1) to slide back and forth, characterized in that: the first sliding block (1) 1) A lateral slope (12) and a trip assembly (2) reciprocatingly sliding along the lateral slope (12) are provided, the trip assembly (2) comprising a second slider (21) slidingly connected to the lateral slope (12), a reverse release block (23) arranged on the longitudinal inclined surface (22) of the second sliding block (21) and sliding along the longitudinal inclined surface (22), the second sliding block (21) is provided with the longitudinal inclined surface (22) The inclined guide grooves (24) with the same inclination angle are provided, and the reverse release block (23) is provided with an inclined guide portion (25) slidably connected to the inclined guide grooves (24).

2 . The oblique ejection undercut mechanism for a mold according to claim 1 , wherein the number of the longitudinal inclined surfaces ( 22 ) is two, and the two longitudinal inclined surfaces ( 22 ) are respectively arranged on the second sliding block. 3 . On the upper and lower sides of (21), the ends of the two longitudinal slopes (22) are both close to the middle of the second sliding block (21). The reverse trip blocks (23) are respectively arranged corresponding to the two longitudinal slopes (22).

3. The oblique ejection undercut mechanism for a mold according to claim 2, wherein the two longitudinal inclined surfaces (22) are provided with sliding grooves (26) that communicate with each other, and one of the reverse tripping blocks (23) A sliding guide rod (27) is installed, and the sliding guide rod (27) extends through the sliding groove (26) and is connected with another reverse release block (23).

4. The oblique ejection undercut mechanism for molds according to claim 1, characterized in that: the second slider (21) is provided with one end connected to the longitudinal slope (22) and is connected with the reverse trip block (23) A firm abutment surface (28) abutting on the back side, the inclined guide groove (24) is provided on the firm abutment surface (28) and extends inward, and the inclined guide portion (25) extends from the reverse release block ( The back of 23) is extended and inserted into the inclined guide groove (24).

5 . The oblique ejection underbuckling mechanism for a mold according to claim 4 , wherein the stable abutting surface ( 28 ) is provided with a first installation groove ( 3 ) and is installed in the first installation groove ( 3 ). 6 . ) of the elastic piece (31), the back of the reverse release block (23) is provided with a second installation groove (32) aligned with the first installation groove (3), and the other end of the elastic piece (31) extends against Connected to the second installation groove (32), the inclination angles of the first installation groove (3) and the second installation groove (32) are both consistent with the inclination angle of the longitudinal inclined plane (22).

6 . The oblique ejection undercut mechanism for molds according to claim 1 , wherein the lateral inclined surface ( 12 ) is provided with a raised sliding guide table ( 13 ), and the second slider ( 21 ) A buckled chute (29) corresponding to the sliding guide table (13) is provided.

7 . The oblique ejection undercut mechanism for molds according to claim 1 , wherein the number of the transverse inclined planes ( 12 ) is two, and the two transverse inclined planes ( 12 ) are respectively arranged on the first sliding block. 8 . On both sides of (1), the end portions of the two transverse inclined surfaces (12) are both close to the middle of the first sliding block (1), the two tripping assemblies (2) are provided, and the two tripping assemblies (2) Corresponding to the two transverse slopes (12) respectively.