CN214645541U

CN214645541U - Built-in secondary mechanism of loosing core of header board mould kicking block

Info

Publication number: CN214645541U
Application number: CN202120009347.8U
Authority: CN
Inventors: 钱科强
Original assignee: ZHEJIANG MOULD FACTORY
Current assignee: ZHEJIANG MOULD FACTORY
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-11-09
Anticipated expiration: 2031-01-04

Abstract

The utility model belongs to the technical field of the header board mould, especially, relate to a built-in secondary mechanism of loosing core of header board mould kicking block. The utility model provides a built-in secondary mechanism of loosing core of motormeter panel mould kicking block, including kicking block and two ejector pins with kicking block fixed connection, the kicking block in be provided with core pulling block and turning block, the turning block set up in rotating the inslot, turning block and core pulling block sliding connection, core pulling in be provided with and inlay the needle and inlay needle delay slot. The utility model discloses an utilize the dead weight of turning block to realize loosing core of core pulling piece, need not additionally to add actuating system, simple structure just need not to control separately, can also improve the precision when improving drawing of patterns efficiency.

Description

Built-in secondary mechanism of loosing core of header board mould kicking block

Technical Field

The utility model belongs to the technical field of the header board mould, especially, relate to a built-in secondary mechanism of loosing core of header board mould kicking block.

Background

Because the header board structure is comparatively complicated, often need the secondary to loose core the ejector pad just can not damage the smooth drawing of patterns of injection molding in drawing of patterns process. However, the prior art is often complex in structure, and a driving system is generally required to be additionally added to realize secondary core pulling. The precision is also affected while the cost is high. For example, the application of chinese utility model discloses a secondary slider mechanism of loosing core [ application number: 201611215553.4], the utility model discloses an engine block, be provided with cover half and movable mould in the engine block, form the zigzag die cavity of slope behind cover half and the movable mould compound die, zigzag die cavity has injection molding and sprue waste material through the first injection moulding that moulds plastics, be provided with demoulding mechanism in cover half and the movable mould, demoulding mechanism is including articulated seat, articulated seat is connected with the side sleeve pipe, the intraductal stripper rod that is provided with of side sleeve, the side sleeve outside is provided with the guide holder, still be provided with borrow mechanism in movable mould and the cover half, borrow mechanism comprises slider and slide two parts, still be provided with the push pedal in the movable mould, the push pedal is driven by independent control system, be provided with in the push pedal and be used for the thimble mechanism of sprue waste discharge, thimble mechanism constitute by push rod, telescopic link and thimble.

The utility model discloses a accomplish the cooling back of moulding plastics, hydraulic stem drive movable mould backward movement, separate with the cover half, retreat the in-process, the injection molding is hugged closely the movable mould has together trend of retreating, demoulding mechanism in the cover half and the movable mould starts simultaneously this moment, articulated seat can adjust the angle of side sleeve pipe in advance, the intraductal telescopic stripper rod that is provided with of cover, the flexible ball screw that can pass through inside of stripper rod realizes with screw-nut's cooperation, adjust the stripper rod and the drawing of patterns position of injection molding on same straight line, when the stripper rod extension, after contacting with the rake of injection molding, the effect of rake production power to the injection molding. To the Z font injection molding of slope, demoulding mechanism and borrow mechanism mutually support, accomplish the process of drawing of patterns and shearing waste material, raise the efficiency and product quality greatly. But still the above problems cannot be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, a built-in secondary mechanism of loosing core of motormeter panel mould kicking block is provided, including kicking block and two ejector pins with kicking block fixed connection, the kicking block in be provided with core pulling block and turning block, the turning block set up in rotating the inslot, the turning block with loose core a sliding connection, loose core in be provided with and inlay the needle and inlay needle delay tank.

In the built-in secondary core-pulling mechanism for the automobile instrument panel mold ejector block, the rotating groove is formed in the side surface of the ejector block, the bottom of the rotating groove is inclined towards the upper surface of the ejector block, so that a rotating gap of the rotating block is formed, and chamfers are arranged at the connecting positions of the two side walls of the rotating groove and the bottom of the rotating groove.

In the built-in secondary core-pulling mechanism of the automobile instrument panel mould ejector block, a core-pulling lug connected with the rotating block is further arranged on one side of the core-pulling block, and the upper surface of the core-pulling lug inclines upwards and is matched with the bottom of the rotating groove.

In the built-in secondary core-pulling mechanism of the automobile instrument panel mould ejector block, the rotating block is provided with a rotating convex part matched with the upper surface of the core-pulling lug, and a fillet groove matched with the core-pulling lug is arranged between the rotating convex part and the rotating block.

In the secondary core-pulling mechanism arranged in the automobile instrument panel mould top block, the rotating groove is provided with a clamping groove matched with the core-pulling block, and a sliding groove is arranged between the rotating convex part and the rotating block.

In the built-in secondary core-pulling mechanism of the automobile instrument board die top block, the insert pin is further provided with an insert pin rod and an insert pin base, and a base delay groove is formed in the core-pulling block.

In the built-in secondary mechanism of loosing core of motormeter board mould kicking block of foretell, the piece of loosing core still be provided with the lug that resets, the lug that resets set up in the one side that the piece of loosing core did not set up the lug that looses core, the lug that resets in be provided with the release link and with the release link complex release link delay tank.

In the built-in secondary core-pulling mechanism for the automobile instrument panel die ejector block, the reset rod is further provided with a reset rod base, the reset rod delay groove is matched with the reset rod base, and the reset rod extends out of the reset rod delay groove and is connected with the ejector block.

In the built-in secondary core-pulling mechanism of the automobile instrument panel mould ejector block, a reset spring is arranged at the joint of the reset rod and the ejector block, and the ejector block is further provided with a limiting hole matched with the reset spring.

In the built-in secondary core-pulling mechanism of the automobile instrument panel die ejector block, two ejector rod fixing seats are respectively arranged at two ends of the ejector block, the two ejector rods and the two ejector rod fixing seats correspond to each other one by one and are provided with ejector rod clamping grooves, and the two ejector rod fixing seats are arranged in a staggered mode.

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

1. the utility model discloses an utilize the dead weight of turning block to realize loosing core of core pulling piece, need not additionally to add actuating system, simple structure just need not to control separately, can also improve the precision when improving drawing of patterns efficiency.

2. The utility model discloses a series of settings are guaranteed the turning block and are loosed core the piece cooperation in-process and appear the card and die, can also make the drawing of patterns stroke more stable simultaneously.

3. The utility model discloses still set up canceling release mechanical system, avoid the piece of loosing core especially the secondary is loosed core and is loosed core the in-process and cause the strain of injection molding, influence the yield.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

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

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

FIG. 4 is a schematic view of a part of the structure of the present invention;

FIG. 5 is a schematic view of a part of the structure of the present invention;

FIG. 6 is a schematic view of a part of the structure of the present invention;

fig. 7 is a partial structural schematic diagram of the present invention;

fig. 8 is a partial structural schematic diagram of the present invention;

fig. 9 is a schematic structural view of the jack.

In the figure: the core pulling device comprises a top block 1, a top rod 2, a core pulling block 3, a rotating block 4, a rotating groove 5, an insert pin 31, an insert pin delay groove 32, a chamfer 51, a core pulling lug 33, a rotating convex part 41, a fillet groove 411, a clamping groove 52, a sliding groove 412, an insert pin rod 34, an insert pin base 35, a base delay groove 351, a reset lug 36, a reset rod 361, a reset rod delay groove 362, a reset rod base 363, a reset spring 364, a limiting hole 11, a top rod fixing base 12 and a top rod clamping groove 21.

Detailed Description

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

As shown in fig. 1-5, a secondary core pulling mechanism with a built-in top block of an automobile instrument panel mold comprises a top block 1 and two top rods 2 fixedly connected with the top block 1, wherein a core pulling block 3 and a rotating block 4 are arranged in the top block 1, the rotating block 4 is arranged in a rotating groove 5, the rotating block 4 is connected with the core pulling block 3 in a sliding manner, and an insert pin 31 and an insert pin delay groove 32 are arranged in the core pulling block 3.

When the device is used, the ejector rod 2 drives the ejector block 1 to eject upwards, and the rotating block 4 arranged in the rotating groove 5 rotates downwards under the action of gravity; the rotating block 4 is connected with the core-pulling block 3 in a sliding manner, so that the core-pulling block 3 is driven to move downwards to realize secondary core pulling; after the core back block 3 finishes the stroke with the same length as the insert pin delay groove 32, the insert pin 31 realizes secondary core back. The embodiment has a simple structure, does not need high cost, namely realizes secondary core pulling in the ejector block, and is easy for practical operation and application.

Specifically, the rotating groove 5 is arranged on the side surface of the top block 1, the bottom of the rotating groove 5 is obliquely arranged towards the upper surface of the top block 1, so that a rotating gap of the rotating block 4 is formed, and chamfers 51 are arranged at the connecting parts of two side walls of the rotating groove 5 and the bottom of the rotating groove 5. When the mold is closed, the rotating block 4 is attached to the bottom of the rotating groove 5, when the mold is opened, the rotating block 4 rotates downwards due to the action of gravity, and the inclination angle of the bottom of the rotating groove 5 to the upper surface of the top block 1 is the rotation angle of the rotating block 4. The chamfer 51 reduces the impact damage generated in the movement process and prolongs the service life.

More specifically, one side of the core pulling block 3 is further provided with a core pulling convex block 33 connected with the rotating block 4, and the upper surface of the core pulling convex block 33 is inclined upwards and matched with the bottom of the rotating groove 5. The turning block 4 rotates to drive the core-pulling convex block 33 to move downwards, and then the core-pulling block 3 is driven to pull the core. In addition, the core back projection 33 can also ensure the stability of the rotating block 4 during the mold closing process.

Referring to fig. 6, the rotation block 4 is provided with a rotation protrusion 41 to match with the upper surface of the core back protrusion 33, and a circular groove 411 matching with the core back protrusion 33 is provided between the rotation protrusion 41 and the rotation block 4. The rotating convex part 41 ensures that the connection with the core pulling convex block 33 is smoother on one hand, and also effectively prevents the possibility of the rotating block 4 and the core pulling block 3 from being blocked.

Furthermore, the rotating groove 5 is provided with a blocking groove 52 matched with the core block 3, and a sliding groove 412 is arranged between the rotating convex part 41 and the rotating block 4. The core block 3 is displaced in the locking groove 52 and the sliding groove 412, on the one hand, to guide the movement of the core block 3. On the other hand, the possibility of blocking in the mold opening process is also reduced.

It will be understood by those skilled in the art that the insert pin 31 is further provided with an insert pin rod 34 and an insert pin base 35, and the core back block 3 is provided with a base delay groove 351. The insert pin 31 is drawn by providing the insert pin base 35 to prevent the insert pin 31 from being stuck. The upper surface of the insert pin 31 is arranged to be an inclined surface in cooperation with the ejector block 1.

In order to prevent the pulling damage to the injection molding part caused by the core pulling process, the core pulling block 3 is further provided with a reset bump 36, the reset bump 36 is arranged on one side of the core pulling block 3 where the core pulling bump 33 is not arranged, and a reset rod 361 and a reset rod delay slot 362 matched with the reset rod 361 are arranged in the reset bump 36. In practical applications, the height of the reset bump 36 is greater than that of the core back bump to ensure the stability of operation.

As shown in fig. 5, the reset rod 361 is further provided with a reset rod base 363, the reset rod delay slot 362 is matched with the reset rod base 363, and the reset rod 361 extends out of the reset rod delay slot 362 and is connected with the top block 1. The connecting of the reset rod 361 and the top block 1 further ensures the stability of the core-pulling block 3 and the top block 1, and also can generate a certain guiding function.

Referring to fig. 8, a return spring 364 is disposed at a connection position of the return rod 361 and the top block 1, and the top block 1 is further provided with a limiting hole 11 engaged with the return spring 364. The automatic reset of the core-pulling block 3 is realized by arranging the reset spring 364 and the limiting hole 11, and the production efficiency is improved. And also plays a certain role in protecting the core pulling process.

In order to ensure the stability of the ejector block mechanism, two ends of the ejector block 1 are respectively provided with an ejector rod fixing seat 12, as shown in a combined figure 9, the two ejector rods 2 and the two ejector rod fixing seats 12 are in one-to-one correspondence and provided with ejector rod clamping grooves 21, and the two ejector rod fixing seats 12 are arranged in a staggered mode. Through dislocation set two ejector pin fixing bases 12 and then dislocation set two ejector pins 2 for ejector block 1 can be ejecting smoothly. The two ejector rods 2 are preferably arranged at two ends of the ejector block 1 in the length direction, the core-pulling block 3 is arranged along the width direction of the ejector block 1, and the core-pulling block 3 is not connected with the side face of the ejector block 1 without the rotating groove 5.

The working principle of the utility model is as follows: when demoulding, firstly, the ejector rod 2 drives the ejector block 1 to eject, and the rotating block 4 rotates downwards along the rotating gap of the rotating groove 5 under the action of gravity to drive the core-pulling lug 33 to move downwards, so that the first core-pulling of the core-pulling block 3 is realized; due to the arrangement of the pin delay groove 32 and the base delay groove 351 in the core-pulling block 3, the inserted pin 31 delays the core pulling, and secondary core pulling is realized; the return spring 364 stores power in the core-pulling process of the core-pulling block 3, and drives the core-pulling block 3 to reset after core-pulling.

Although the top block 1, the ejector pin 2, the core-pulling block 3, the turning block 4, the turning groove 5, the insert pin 31, the insert pin delay groove 32, the chamfer 51, the core-pulling projection 33, the turning projection 41, the fillet groove 411, the detent groove 52, the slide groove 412, the insert pin bar 34, the insert pin base 35, the base delay groove 351, the reset projection 36, the reset lever 361, the reset lever delay groove 362, the reset lever base 363, the reset spring 364, the stopper hole 11, the ejector pin holder 12, and the ejector pin catching groove 21 are used more frequently, 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 in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a built-in secondary mechanism of loosing core of header board mould kicking block, includes kicking block (1) and two ejector pins (2) with kicking block (1) fixed connection, its characterized in that: the novel core pulling device is characterized in that a core pulling block (3) and a rotating block (4) are arranged in the top block (1), the rotating block (4) is arranged in a rotating groove (5), the rotating block (4) is connected with the core pulling block (3) in a sliding mode, and an insert needle (31) and an insert needle delay groove (32) are arranged in the core pulling block (3).

2. The automobile instrument panel die top block built-in secondary core pulling mechanism according to claim 1, characterized in that: the rotation groove (5) set up on the side surface of kicking block (1), the bottom that rotates groove (5) sets up to kicking block (1) upper surface slope to form the turning gap of turning block (4), two lateral walls in rotation groove (5) and the department of meeting in rotation groove (5) bottom all set up chamfer (51).

3. The automobile instrument panel mold top block built-in secondary core-pulling mechanism according to claim 2, characterized in that: and a core-pulling convex block (33) connected with the rotating block (4) is further arranged on one side of the core-pulling block (3), and the upper surface of the core-pulling convex block (33) is inclined upwards and matched with the bottom of the rotating groove (5).

4. The automobile instrument panel mold top block built-in secondary core-pulling mechanism according to claim 3, characterized in that: the rotary block (4) is provided with a rotary convex part (41) matched with the upper surface of the core-pulling convex block (33), and a circular bead groove (411) matched with the core-pulling convex block (33) is arranged between the rotary convex part (41) and the rotary block (4).

5. The automobile instrument panel mold top block built-in secondary core-pulling mechanism according to claim 4, characterized in that: the rotating groove (5) is provided with a clamping groove (52) matched with the core-pulling block (3), and a sliding groove (412) is arranged between the rotating convex part (41) and the rotating block (4).

6. The automobile instrument panel die top block built-in secondary core pulling mechanism according to claim 1, characterized in that: the needle (31) is also provided with an insert needle rod (34) and an insert needle base (35), and the core block (3) is internally provided with a base delay groove (351).

7. The automobile instrument panel mold top block built-in secondary core-pulling mechanism according to claim 3, characterized in that: the core-pulling block (3) is further provided with a reset lug (36), the reset lug (36) is arranged on one side of the core-pulling block (3) where the core-pulling lug (33) is not arranged, and a reset rod (361) and a reset rod delay groove (362) matched with the reset rod (361) are arranged in the reset lug (36).

8. The automobile instrument panel mold top block built-in secondary core-pulling mechanism according to claim 7, characterized in that: the reset rod (361) is further provided with a reset rod base (363), the reset rod delay groove (362) is matched with the reset rod base (363), and the reset rod (361) extends out of the reset rod delay groove (362) and is connected with the top block (1).

9. The automobile instrument panel die top block built-in secondary core pulling mechanism according to claim 8, characterized in that: reset rod (361) and kicking block (1) junction set up reset spring (364), kicking block (1) still set up with reset spring (364) complex spacing hole (11).

10. The automobile instrument panel die top block built-in secondary core pulling mechanism according to claim 1, characterized in that: ejector pin fixing base (12) are provided with respectively in kicking block (1) both ends, two ejector pins (2) and two ejector pin fixing base (12) one-to-one and be equipped with ejector pin draw-in groove (21), two ejector pin fixing base (12) dislocation set.