CN216658720U

CN216658720U - Linkage slider secondary core-pulling device of injection mold

Info

Publication number: CN216658720U
Application number: CN202122811993.9U
Authority: CN
Inventors: 刘云丹
Original assignee: Kunshan Hongjingda Precision Mould Co ltd
Current assignee: Kunshan Hongjingda Precision Mould Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-06-03
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a linkage sliding block secondary core pulling device of an injection mold, and relates to the technical field of molds. The sliding block is used for carrying out transverse displacement under the action of the inclined guide rod, the sliding block drives the push rod to carry out displacement, a limiting component on the lower fixed sliding seat carries out position limitation on a sliding groove opening, after the sliding groove opening stops, the pushing force of the push rod enables the moving block to leave from the position of the limiting component on the sliding groove opening, the moving block is continuously pushed to carry out displacement, an inner core block on the inner guide rod continues to move, the moving stroke of the sliding block is finished, the inner core block carries out secondary core pulling forming on a mold, after the forming is finished, the mold is opened, the sliding groove opening is fixed under the action of the limiting component on the lower fixed sliding seat, the moving block is driven to return along the direction of the sliding groove opening, after the sliding groove opening is in place, the limiting component on the sliding groove opening limits the position of the moving block, then the sliding groove opening is driven to integrally break away from the position of the limiting component on the lower fixed sliding seat, and demolding is realized.

Description

Linkage slider secondary core-pulling device of injection mold

Technical Field

The utility model relates to the technical field of molds, in particular to a linkage sliding block secondary core pulling device of an injection mold.

Background

Moulds (Mule) are used for obtaining various moulds and tools of required products by injection moulding, blow moulding, 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, with different molds being made up of different parts. The method realizes the processing of the appearance of the article mainly by changing the physical state of the formed material, and the article is called as 'industrial mother'.

The blank is formed into a tool 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.

Injection mold is behind injection moulding to the working of plastics, if the outer wall system of working of plastics has annular groove and protruding muscle, then the mould need be followed closely through the slider when the die sinking and is loosed the core, outer wall system when the working of plastics has 2 or during annular groove and protruding muscle more than 2, if adopt once side loose core (the slider directly slides to one side when the mould die sinking promptly, annular groove and protruding muscle on the working of plastics outer wall deviate from), because the slider has the annular groove and the protruding muscle of annular lug more than 2 or 2 equally and working of plastics between the cooperation, both adhere easily or wrap tightly together, direct side loose core leads to the recess and the protruding muscle of working of plastics outer wall to be pulled out and warp easily, even directly snap, break, influence the qualification rate of product.

SUMMERY OF THE UTILITY MODEL

The utility model provides a linkage sliding block secondary core pulling device of an injection mold, which solves the problems in the background technology.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a linkage sliding block secondary core-pulling device of an injection mold comprises an inclined guide rod fixedly arranged with an upper mold and a sliding block movably arranged on the lower mold, the surface of the slide block is provided with an inclined notch, the slide block is movably arranged on the inclined guide rod through the inclined notch, a push rod is fixedly arranged on one side of the slide block, a moving block is arranged on the end surface of the push rod far away from the push rod in a sliding manner, an inner guide rod is fixedly arranged at one side of the moving block, an inner core block is fixedly arranged at one end of the inner guide rod far away from the moving block, a lower fixed sliding seat is fixedly arranged on the lower die, the lower fixed sliding seat is movably provided with a sliding groove opening, the moving block is movably arranged on the sliding groove opening, the die is characterized in that a molding block clamping seat is fixedly arranged at one end, away from the sliding block, of the sliding groove opening, a molding block is clamped at the middle section of the molding block clamping seat, and secondary core pulling action on the die is integrally realized.

As a further scheme of the utility model: the lower fixing sliding seat is provided with a limiting assembly on the surface of the end face far away from the sliding block, the end face, close to the sliding block, of the sliding groove opening is also provided with the limiting assembly, the limiting assembly is used for limiting the positions of the sliding groove opening and the moving block, and core pulling actions of different sections of the sliding groove opening and the moving block are achieved.

As a further scheme of the utility model: the limiting assembly comprises an inner notch formed in the lower fixing sliding seat or the sliding groove opening, a spring part is arranged inside the inner notch, a limiting block is fixedly arranged on the upper end of the spring part, and the corner of the upper end face of the limiting block is rounded, so that the sliding groove opening and the moving block can be conveniently clamped.

As a further scheme of the utility model: round holes matched with the limiting blocks are formed in the surfaces of the bottom of the moving block and the bottom of the sliding groove opening, which is far away from the sliding block end.

As a further scheme of the utility model: the molding surface is arranged on the bottom surface of the molding block, the molding surface is also arranged on the end surface of the inner core block, and the molding surface at the bottom of the molding block protrudes out of the molding surface of the inner core block, so that the purpose of molding twice is realized.

As a further scheme of the utility model: the two ends of the profile block are provided with guide blocks, and notches matched with the guide blocks are formed in the two sides of the profile block clamping seat.

The utility model provides a linkage sliding block secondary core pulling device of an injection mold. Compared with the prior art, the method has the following beneficial effects:

the slide block is transversely displaced under the action of the inclined guide rod, the slide block drives the push rod to displace, the push rod drives the moving block to displace, the moving block is limited at one end of the chute opening by the limiting component on the chute opening at the moment, the movement of the push rod drives the whole chute opening to move along the direction of the limiting component at the moment, the molding block fixedly arranged on the chute opening assists in molding in the mold in the moving direction, after the whole chute opening is moved in place, the limiting component on the lower fixed slide seat limits the position of the chute opening, after the position of the chute opening is stopped, the thrust of the push rod enables the moving block to leave from the position of the limiting component on the chute opening, the moving block is continuously pushed to displace, the inner core block on the inner guide rod continues to move until the movement stroke of the slide block is finished, the inner core block performs secondary molding on the mold, and after the molding is finished, the mold is opened, the spout mouth is earlier motionless under the effect of the spacing subassembly on the fixed slide down, drives the direction return of movable block along the spout mouth, and the back that targets in place, the position of spacing subassembly restriction movable block on the spout mouth drives the whole position that breaks away from the spacing subassembly on the fixed slide down of spout mouth afterwards, realizes the drawing of patterns.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic view of the internal structure at a in fig. 2.

In the figure: 1. a slider; 2. an inclined guide rod; 3. a beveled slot opening; 4. a moving block; 5. an inner guide bar; 6. a lower fixed slide seat; 7. a chute opening; 8. a block clamp seat; 9. molding blocks; 10. a limiting component; 11. A push rod; 12. a limiting block; 13. a spring member; 14. an inner notch; 15. an inner core block.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the utility model, the following detailed description is given for the specific embodiments, structures, features and effects of the present invention in conjunction with the accompanying drawings and preferred embodiments.

Referring to fig. 1-3, a linkage slider secondary core pulling device of an injection mold comprises an inclined guide rod 2 fixedly arranged with an upper mold and a slider 1 movably arranged on a lower mold, wherein an inclined notch 3 is formed on the surface of the slider 1, the slider 1 is movably arranged on the inclined guide rod 2 through the inclined notch 3, a push rod 11 is fixedly arranged on one side of the slider 1, a moving block 4 is slidably arranged on the end surface of the push rod 11, an inner guide rod 5 is fixedly arranged on one side of the moving block 4, an inner core block 15 is fixedly arranged on one end of the inner guide rod 5 far away from the moving block 4, a lower fixed slide seat 6 is fixedly arranged on the lower mold, a slide notch 7 is movably arranged on the lower fixed slide seat 6, the moving block 4 is movably arranged on the slide notch 7, and a molding block clamping seat 8 is fixedly arranged on one end of the slide notch 7 far away from the slider 1, the middle section of the shaped block clamping seat 8 is clamped with a shaped block 9, and secondary core-pulling action on the die is integrally realized.

The lower fixing slide seat 6 is provided with a limiting component 10 on the surface of the end face far away from the slide block 1, the end face of the chute opening 7 close to the slide block 1 is also provided with the limiting component 10, the limiting component 10 is used for limiting the positions of the chute opening 7 and the moving block 4, and the limiting component 10 is used for limiting the positions of the chute opening 7 and the moving block 4 and realizing core pulling actions on different sections of the chute opening.

The limiting assembly 10 comprises an inner notch 14 formed in the lower fixing sliding seat 6 or the sliding groove opening 7, a spring part 13 is arranged inside the inner notch 14, a limiting block 12 is fixedly arranged on the upper end of the spring part 13, and the corner of the upper end face of the limiting block 12 is rounded, so that the sliding groove opening 7 and the moving block 4 can be conveniently clamped.

Round holes matched with the limiting blocks 12 are formed in the bottom of the moving block 4 and the surface of the bottom of the sliding groove opening 7 far away from the sliding block 1.

The bottom surface of the profile block 9 is provided with a profile, the end surface of the inner core block 15 is also provided with a profile, and the profile at the bottom of the profile block 9 protrudes out of the profile of the inner core block 15, so that the purpose of forming twice is realized.

The two ends of the shaped block 9 are provided with guide blocks, and the two sides of the shaped block clamping seat 8 are provided with notches matched with the guide blocks.

When the device is used, the device is integrally installed, after a die is closed, a sliding block 1 is transversely displaced under the action of an inclined guide rod 2, the sliding block 1 drives a push rod 11 to displace, the push rod 11 drives a movable block 4 to displace, the movable block 4 is limited at one end of a chute opening 7 by a limiting component 10 on the chute opening 7 at the moment, the movement of the push rod 11 drives the whole chute opening 7 to move along the direction of the limiting component 10, a molding block 9 fixedly arranged on the chute opening 7 assists in forming in the die in the moving direction, after the whole chute opening 7 moves in place, the limiting component 10 on a lower fixed sliding seat 6 limits the position of the chute opening 7, after the position of the chute opening 7 is stopped, the thrust of the push rod 11 enables the movable block 4 to leave from the position of the limiting component 10 on the chute opening 7, and the movable block 4 is continuously pushed to displace, interior core block 15 on the interior guide bar 5 continues to move, the motion stroke of slider 1 is ended, interior core block 15 carries out the secondary shaping of loosing core to the mould, after the shaping, the mould die sinking, spout opening 7 is at first motionless under the effect of spacing subassembly 10 on fixed slide 6 down, drive the direction return of movable block 4 along spout opening 7, after targetting in place, spacing subassembly 10 on the spout opening 7 limits the position of movable block 4, drive the position that spout opening 7 wholly breaks away from spacing subassembly 10 on fixed slide 6 down afterwards, realize the drawing of patterns.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an injection mold's linkage slider secondary device of loosing core, includes and sets up slider (1) on the lower mould with oblique guide bar (2) and the activity of last mould fixed setting, its characterized in that: an inclined notch (3) is formed in the surface of the sliding block (1), the sliding block (1) is movably arranged on an inclined guide rod (2) through the inclined notch (3), a push rod (11) is fixedly arranged on one side of the sliding block (1), a moving block (4) is arranged on the end face of the push rod (11) in a sliding mode, an inner guide rod (5) is fixedly arranged on one side of the moving block (4), an inner core block (15) is fixedly arranged on one end, away from the moving block (4), of the inner guide rod (5), a lower fixing sliding seat (6) is fixedly arranged on the lower die, a sliding notch (7) is movably arranged on the lower fixing sliding seat (6), a block clamping seat (8) is fixedly arranged on one end, away from the sliding block (1), of the sliding notch (7), and a block (9) is clamped in the middle section of the block clamping seat (8), the end face surface of the lower fixing sliding seat (6) far away from the sliding block (1) is provided with a limiting component (10), and the end face of the sliding groove opening (7) close to the sliding block (1) is also provided with the limiting component (10).

2. The linkage slider secondary core pulling device of the injection mold according to claim 1, characterized in that: the limiting assembly (10) comprises an inner notch (14) formed in a lower fixing sliding seat (6) or a sliding groove opening (7), a spring piece (13) is arranged inside the inner notch (14), a limiting block (12) is fixedly arranged on the upper end of the spring piece (13), and the corner of the upper end face of the limiting block (12) is rounded.

3. The linkage slider secondary core pulling device of the injection mold according to claim 2, characterized in that: round holes matched with the limiting blocks (12) are formed in the bottom of the moving block (4) and the surface of the bottom of the sliding groove opening (7) far away from the sliding block (1).

4. The linkage slider secondary core pulling device of the injection mold according to claim 1, characterized in that: the bottom surface of the profile block (9) is provided with a profile, the end surface of the inner core block (15) is also provided with a profile, and the profile at the bottom of the profile block (9) is protruded out of the profile of the inner core block (15).

5. The linkage slider secondary core pulling device of the injection mold according to claim 1, characterized in that: the two ends of the shaped block (9) are provided with guide blocks, and notches matched with the guide blocks are formed in the two sides of the shaped block clamping seat (8).