CN112406039A

CN112406039A - Core-pulling mechanism with composite inner-pulling slide block

Info

Publication number: CN112406039A
Application number: CN201910781369.3A
Authority: CN
Inventors: 王明达; 周忠祥; 成才
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2021-02-26

Abstract

The invention relates to a core pulling mechanism for composite internal pulling of a sliding block, which comprises the sliding block and a power device for driving the sliding block to slide, wherein the sliding block is arranged on a movable mould frame in a sliding manner, one side of the sliding block is also provided with a clearance groove, an internal pulling is arranged in the clearance groove, the clearance groove drives the internal pulling to move, and the sliding directions of the internal pulling and the sliding block are consistent. The invention abandons the traditional design form of a single component of the sliding block and the internal core pulling, and is formed by a composite form, thereby meeting the common realization of lateral core pulling and internal core pulling; most parts of a single internal pulling structure are reduced, steel materials are saved, and the repair difficulty of a fitter is reduced; the overall size of the die is optimized, the die processing procedure is improved, and the die manufacturing and processing period is shortened; the mould assembly requires, and the structure is reliable, and the practicality is strong.

Description

Core-pulling mechanism with composite inner-pulling slide block

Technical Field

The invention belongs to the field of molds, can realize the delay core-pulling function of the composite inner pulling of a sliding block, and particularly relates to the structural requirement of a complex mold with lateral core-pulling and inner core-pulling buckle on the same side.

Background

Along with the continuous development of the automobile lamp industry, the product structure is continuously advanced towards the direction of complexity and diversification. In order to avoid overlarge local wall thickness of a product, a glue stealing processing mode is adopted at the invisible buckle part of the product, so that the phenomenon of reduction printing is reduced.

At present, the mold opening direction of an injection molding machine is single, so that the mold opening direction is unique, but in order to realize the structural parting of the buckle of a product, structural forms such as a sliding block and an inner core are designed, and the functional requirements of lateral core pulling and inner core pulling are met. However, the traditional sliding block mechanism and the traditional internal pulling mechanism have too many components and single function realization, and are not suitable for the core pulling requirement of a composite form.

Zhang and shuang in the book of 'plastic forming technology and die design' of the editor, offer guidance and analysis to the design and application form of the side parting of the die and core pulling mechanism, but the structure can only realize the single core pulling demand mostly, when the angle drop of the product is too big, have side direction and internal to examine the core pulling at the same time, the direction of core pulling is opposite, can use slide block, internal pulling mechanism alone; but the direction is the same, according to traditional slider, interior pump mechanism design, must make the whole size of mould increase, and the inner space digs iron seriously, causes the mould processing complicacy, and the assembly is difficult, makes the mould cost rise.

Disclosure of Invention

The invention provides a time-delay core pulling mechanism with a sliding block combined internal pulling, aiming at solving the problems of complex processing and difficult assembly caused by the fact that the size of a die needs to be increased when the die moves on the same side.

Preferably, the power device comprises an inclined guide post and a fixed block, the fixed block is arranged on the sliding block, one end of the inclined guide post is fixed on the fixed die frame, the inclined guide post penetrates through the sliding block and is arranged in the fixed block in a sliding mode, and an included angle between the inclined guide post and the horizontal plane is 15-25 degrees. The inclined guide post is offset by a certain angle, and the larger the angle is, the larger the stress of the inclined guide post in the die assembly process is, and the larger the risk of fracture is, so that in the design, the angle is as small as possible while the completion of lateral core pulling is ensured, and the angle is generally 15-25 degrees. Because the oblique guide pillar is fixed on the fixed die frame, when the die is closed, the fixed die frame drives the oblique guide pillar to move upwards, and because the oblique guide pillar is inclined with the horizontal plane, the oblique guide pillar moves forwards while moving upwards, and the oblique guide penetrates through the sliding block to be arranged in the fixed block in a sliding manner, so that the oblique guide pillar pushes the sliding block to move forwards along the horizontal direction.

Furthermore, the sliding die further comprises a guide device used for limiting the moving direction of the sliding block, the guide device comprises a guide strip arranged on the moving die frame, a sliding groove is formed in the sliding block, and the sliding block is arranged on the guide strip in a sliding mode through the sliding groove. The guide strip limits the sliding direction of the sliding block, and the stability of movement is guaranteed.

Preferably, the guide device further comprises a guide rail arranged on the movable mould frame, a guide groove is formed in the inner drawer, and the inner drawer is arranged on the guide rail in a sliding mode through the guide groove. The guide rail limits the sliding direction of the inner drawer and improves the stability of movement.

Furthermore, the movable mould further comprises a positioning device for limiting the sliding distance of the sliding block, the positioning device comprises a limiting block arranged on one side of the movable mould frame, and the position of the limiting block corresponds to the position of the sliding block.

Preferably, the inner drawer is provided with a convex block, and the convex block is arranged in the clearance groove in a sliding manner. The lug slides in keeping away the dead groove, when the slider removed, because keep away the dead groove setting on the slider, keep away the dead groove and remove to the pulling slider removes, the lug is unilateral with keeping away the unilateral clearance of reserving 0.5mm in groove, prevents to block and dies.

Has the advantages that: (1) the invention abandons the traditional design form of a single component of the sliding block and the internal core pulling, and is formed by a composite form, thereby meeting the common realization of lateral core pulling and internal core pulling;

(2) the invention reduces most parts of a single internal pulling structure, saves steel materials and reduces the repair difficulty of a fitter;

(3) the invention optimizes the whole size of the die, improves the die processing procedure and reduces the die manufacturing and processing period;

(4) the invention has the advantages of conforming to the assembly requirement of the die in the overall structure form, reliable structure and strong practicability.

Drawings

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

FIG. 2 is a cross-sectional view of the clearance groove of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

1. a slider; 2. internal pumping; 3. a fixed block; 4. an inclined guide post; 5. a guide strip; 6. a chute; 7. a guide groove; 8. a guide rail; 9. a limiting block; 10. an empty avoiding groove; 11. a bump; 12. a fixed mould frame; 13. movable mould frame

Detailed Description

As shown in the figure, the core pulling mechanism for the composite inner pulling of the sliding block comprises the sliding block 1 and a power device for driving the sliding block 1 to slide, wherein the sliding block 1 is arranged on a movable die frame 13 in a sliding mode, a clearance groove 10 is further formed in one side of the sliding block 1, an inner pulling rod 2 is arranged in the clearance groove 10, the clearance groove 10 drives the inner pulling rod 2 to move, and the sliding directions of the inner pulling rod 2 and the sliding block 1 are consistent. The power device comprises an inclined guide post 4 and a fixed block 3, the fixed block 3 is arranged on the sliding block 1, one end of the inclined guide post 4 is fixed on a fixed die frame 12, the inclined guide post 4 penetrates through the sliding block 1 and is arranged in the fixed block 3 in a sliding mode, and the included angle between the inclined guide post 4 and the horizontal plane is 15-25 degrees. The sliding block mechanism further comprises a guiding device used for limiting the moving direction of the sliding block 1, the guiding device comprises a guide strip 5 arranged on the movable mould frame 13, a sliding groove 6 is formed in the sliding block 1, and the sliding block 1 is arranged on the guide strip 5 in a sliding mode through the sliding groove 6. The guide device further comprises a guide rail 8 arranged on the movable mould frame 12, a guide groove 7 is formed in the inner drawer 2, and the inner drawer 2 is arranged on the guide rail 8 in a sliding mode through the guide groove 7.

The sliding mechanism further comprises a positioning device for limiting the sliding distance of the sliding block 1, the positioning device comprises a limiting block 9 arranged on one side of the movable mould frame 13, and the position of the limiting block 9 corresponds to the position of the sliding block 1. The inner drawer 2 is provided with a convex block 11, and the convex block 11 is arranged in the clearance groove 10 in a sliding mode.

The specific working principle is as follows: the inclined guide post 4 is arranged in the fixed block 3 in a sliding mode through the sliding block 1 and fixed on a fixed die frame 12, when a die is opened, the fixed die frame 12 drives the inclined guide post 4 to move upwards, the inclined guide post 4 moves upwards and moves backwards simultaneously due to the inclined arrangement of the inclined guide post 4, so that the sliding block 1 is driven to move backwards, an empty avoiding groove 10 is formed in one side of the sliding block 1, a lug 11 is arranged on the inner drawer 2, the lug 11 is arranged in the empty avoiding groove 10 in a sliding mode, the sliding block 1 moves backwards, the empty avoiding groove 10 drives the lug 11 to move backwards, so that the inner drawer 2 is driven to move backwards, the inner drawer 2 is separated from a product, a guide rail 8 and a guide strip 5 on the movable die frame 13 are respectively matched with the guide groove 7 and the sliding groove 6 to play a guiding role, the movement smoothness is ensured, a limit block 9 is arranged on the movable die frame 13, the position of the limit block 9 corresponds to the position of the sliding block 1, and when the sliding block, the motion is stopped, and the limit block 9 limits the backward moving distance of the slide block 1; when the die is assembled, the fixed die frame 12 moves downwards to drive the inclined guide post 4 to move downwards, the inclined guide post 4 is arranged obliquely, so that the inclined guide post 4 also moves forwards, the inclined guide post 4 is arranged in the fixed block 3 in a sliding mode, the inclined guide post 4 pushes the sliding block 1 to move forwards, the clearance groove 10 also moves forwards while the sliding block 1 moves forwards, the lug 11 is pulled by the clearance groove 10 to move forwards, the lug 11 is fixed on the inner drawer 2, and the inner drawer 2 moves forwards until the die assembly is completed.

Claims

1. The utility model provides a mechanism of loosing core that slider is compound is taken out in which characterized in that: including slider (1) and the gliding power device of drive slider (1), slider (1) slides and sets up on movable mould frame (13), one side of slider (1) still is equipped with keeps away dead slot (10), it takes out (2) in being equipped with in dead slot (10) to keep away, it drives to keep away dead slot (10) interior taking out (2) remove, interior taking out (2) with slider (1) slip direction is unanimous.

2. The core pulling mechanism for composite internal pulling of the sliding block according to claim 1, is characterized in that: the power device comprises an inclined guide post (4) and a fixed block (3), one end of the inclined guide post (4) is fixed on a fixed die frame (12), the fixed block (3) is arranged on the sliding block (1), the inclined guide post (4) penetrates through the sliding block (1) to be arranged in the fixed block (3) in a sliding mode, and the included angle between the inclined guide post (4) and the horizontal plane is 15-25 degrees.

3. The core pulling mechanism for composite internal pulling of the sliding block according to claim 1, is characterized in that: the sliding block (1) is characterized by further comprising a guiding device used for limiting the moving direction of the sliding block (1), the guiding device comprises a guiding strip (5) arranged on the movable die frame (13), a sliding groove (6) is formed in the sliding block (1), and the sliding block (1) is arranged on the guiding strip (5) in a sliding mode through the sliding groove (6).

4. The core pulling mechanism for composite internal pulling of the sliding block as claimed in claim 3, wherein: the guide device further comprises a guide rail (8) arranged on the movable mould frame (13), a guide groove (7) is formed in the inner drawer (2), and the inner drawer (2) is arranged on the guide rail (8) in a sliding mode through the guide groove (7).

5. The core pulling mechanism for composite internal pulling of the sliding block according to claim 1, is characterized in that: the positioning device comprises a limiting block (9) arranged on one side of the movable die frame (13), and the position of the limiting block (9) corresponds to the position of the sliding block (1).

6. The core pulling mechanism for slider composite internal pulling according to claim 5, wherein: a lug (11) is arranged on the inner drawer (2), and the lug (11) is arranged in the clearance groove (10) in a sliding mode.