CN115476484A - Automatic disconnected material of mould drawing of patterns is device - Google Patents

Abstract

The invention relates to the technical field of injection molds, and provides an automatic material-breaking handle device for mold demolding, which comprises a fixed mold and a movable mold; further comprising: the top plate is arranged between the movable die and the movable die base; the top plate can move back and forth between the movable die and the movable die base; the inclined ejector rod is slidably connected with the movable die in a penetrating manner, one end of the inclined ejector rod is fixedly connected with a jacking block positioned at the combination position of the fixed die and the movable die, and the other end of the inclined ejector rod is slidably arranged on the top plate; the inclined ejector rod and the moving direction of the movable die form a preset included angle; an ingate is formed between the top pulling block and the fixed die. Therefore, the invention has the advantages that through the arrangement of the top-pulling block and the inclined ejector rod, the top-pulling block props the fixed die after the die is opened and drives the ingate and the movable die to move relatively, so that the top-pulling block is torn and separated from the workpiece. The invention realizes the automatic separation of the ingate along with the movement of the movable mould when the mould is opened, replaces the subsequent cutting-off process, shortens the production flow and reduces the production cost.

Description

Automatic disconnected material of mould drawing of patterns is device

Technical Field

The invention belongs to the technical field of injection molds, and particularly relates to an automatic material-breaking handle device for mold demolding.

Background

And (3) performing injection molding and mold opening, generally retreating the product along with the movable mold, ejecting the product to be separated from the movable mold, and taking down the workpiece through manpower or a mechanical arm.

The material that the inside corner mouth formed after the cooling is connected on the product, needs the manual work to cut off, has increased operating procedure. After manual excision, the incision is usually inspected and repaired, which increases the workload and reduces the work efficiency.

In view of the foregoing, it is apparent that the prior art has inconvenience and disadvantages in practical use, and thus, needs to be improved.

Disclosure of Invention

The invention solves the technical problem that the automatic separation of the ingate is realized along with the movement of the movable mould when the mould is opened, thereby replacing the subsequent cutting-off process, shortening the production flow and reducing the production cost.

In order to solve the problems, the invention provides an automatic material-breaking handle device for demoulding a mould, which comprises a fixed mould and a movable mould; further comprising:

the top plate is arranged between the movable die and the movable die base; the top plate can move between the movable die and the movable die base in a reciprocating manner;

the inclined ejector rod is slidably connected with the movable die in a penetrating manner, one end of the inclined ejector rod is fixedly connected with a jacking block positioned at the combination position of the fixed die and the movable die, and the other end of the inclined ejector rod is slidably arranged on the top plate; the inclined ejector rod and the moving direction of the movable die form a preset included angle; an ingate is formed between the top pulling block and the fixed die.

According to the automatic material handle breaking device for mold stripping, the top pulling block is further fixedly connected with the auxiliary pulling block, and the auxiliary pulling block is provided with the easy-to-break groove.

According to the automatic material handle breaking device for mold demolding, a fulcrum groove is formed in the fixed mold.

According to the automatic material-breaking handle device for mold stripping, the included angle between the inclined ejector rod and the moving direction of the movable mold is not more than 12 degrees.

According to the automatic material cutting handle device for mold stripping, two parallel slotted plate parts are fixed on the top plate; a rail groove is formed in the slotted plate, and a hinged sliding block is arranged in the rail groove in a sliding manner; an inclined rod push block is clamped between the two hinged sliding blocks; the inclined rod pushing block is fixedly connected with an inclined ejector rod.

According to the automatic material cutting handle device for mold stripping, the inclined rod push block is rotatably clamped between the two hinged sliding blocks.

According to the automatic material cutting handle device for mold demolding, a draw hook rod is connected between the fixed mold and the top plate; one end of the pull hook rod is provided with a hook groove, and the other end of the pull hook rod is rotatably arranged on the pull rod seat; the rod body of the draw hook rod is also sleeved with a stroke block in a sliding manner; the fixed die is fixedly connected with a hook plate seat, and a hook plate fastened with the hook groove is arranged on the hook plate seat; the stroke block is arranged on the movable die in a rotating mode, and the pull rod seat is arranged on the top plate in a rotating mode;

a guide groove is formed in the stroke block, and a pulley moving in the guide groove is fixedly connected to the pull hook rod; two sections of straight portions of guide way adopt arc portion transition between two straight portions.

In summary, the top-pulling block and the inclined ejector rod are arranged, after the die is opened, the top-pulling block props the fixed die and drives the ingate and the movable die to move relatively, and therefore the top-pulling block and the movable die are torn and separated from the workpiece. The invention realizes the automatic separation of the ingate along with the movement of the movable mould when the mould is opened, replaces the subsequent cutting-off process, shortens the production flow and reduces the production cost.

Drawings

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

FIG. 2 is a schematic view of the structure in the direction B-B in FIG. 1;

FIG. 3 is a schematic structural diagram of the region C in FIG. 2;

FIG. 4 is a schematic structural view of the region A in FIG. 1;

FIG. 5 is a schematic view of the construction of the drawbar of the present invention;

FIG. 6 is a schematic structural view of the stroke block of FIG. 5;

in the figure: 1-fixed die, 11-sprue, 12-ingate and 13-branch groove; 2-moving die, 21-moving die holder and 22-top plate; 3-inclined ejector rod, 31-top pulling block, 32-auxiliary pulling block and 33-easy breaking groove; 4-slotted plate, 41-hinged sliding block, 42-inclined rod push block and 43-limit baffle; 5-draw rod, 51-draw rod seat, 52-stroke block, 53-hook plate, 54-hook plate seat, 55-pulley, 56-guide groove.

Detailed Description

Referring to fig. 1, the invention provides an automatic die-stripping and handle-breaking device, which comprises a fixed die 1 and a movable die 2; further comprising:

a top plate 22 provided between the movable mold 2 and the movable mold base 21; the top plate 22 can move back and forth between the movable die 2 and the movable die base 21;

referring to fig. 2, the inclined ejector rod 3 is slidably inserted into the movable mold 2, one end of the inclined ejector rod is fixedly connected with a top pull block 31 positioned at the joint position of the fixed mold 1 and the movable mold 2, and the other end of the inclined ejector rod is slidably arranged on the top plate 22; the inclined ejector rod 3 and the moving direction of the movable die 2 form a preset included angle; referring to fig. 3, an ingate 12 is formed between the top pulling block 31 and the fixed die 1;

in the initial stage of opening the die, the movable die 2 and the movable die holder 21 move, the top plate 22 keeps still, and the top pull block 31 pushes the fixed die 1 at a certain pressure;

with reference to fig. 3, the oblique ejector rod 3 is driven to move transversely relative to the top plate 22 as the die 2 moves continuously, so that the top pulling block 31 drives the ingate 12 to move, and the ingate and the workpiece are torn off.

Preferably, the top pulling block 31 is further fixedly connected with an auxiliary pulling block 32, and the auxiliary pulling block 32 is provided with an easy-to-break groove 33; after injection molding and mold filling, a breakable bulge is formed on the ingate 12; the auxiliary pulling block 32 is fastened to the breakable bulge of the ingate 12, so that the ingate 12 is easier to break.

Further, a fulcrum groove 13 is formed in the fixed die 1; after injection molding and mold filling, a fulcrum bulge is formed on the ingate 12; during the movement of the top-pulling block 31, the ingate 12 rotates around the fulcrum protrusion, promoting the breaking thereof.

After the movable mold 2 and the movable mold seat 21 move for a predetermined stroke, the ingate 12 is broken, then the movable mold 2 drives the top plate 22 to retreat together, and the broken and fallen ingate 12 is taken out together with the top pull block 31.

Referring to fig. 4, as an embodiment, two parallel slotted plate members 4 are fixed on the top plate 22; a rail groove is formed in the slotted plate 4, and a hinged sliding block 41 is arranged in the rail groove in a sliding manner; an inclined rod push block 42 is clamped between the two hinged sliding blocks 41; the inclined rod pushing block 42 is fixedly connected with an inclined ejector rod 3;

when the movable mold 2 moves, the inclined ejector rod 3 drives the inclined rod push block 42 and the hinge sliding block 41 to slide in the rail groove again, and the included angle between the inclined rod push block and the moving direction of the movable mold 2 is kept unchanged.

The included angle between the inclined ejector rod 3 and the moving direction of the movable mould 2 is not more than 12 degrees. The size of the included angle can be set adaptively by the person skilled in the art according to the stroke of the snapping.

Preferably, the inclined rod pushing block 42 is rotatably clamped between the two hinge sliding blocks 41, and when the inclined rod pushing block is installed, the inclination angle of the inclined rod 3 can be adjusted to meet the preset requirement.

In order to ensure sufficient strength, the oblique ejector rod 3 of the invention is a solid rod.

Preferably, in order to precisely control the separating time of the top pulling block 31 and the fixed mold 1, referring to fig. 6, as an embodiment, a pulling hook rod 5 is connected between the fixed mold 1 and the top plate 22; one end of the draw hook rod 5 is provided with a hook groove, and the other end is rotatably arranged on the draw rod seat 51; the rod body of the draw hook rod 5 is also sleeved with a stroke block 52 in a sliding way; a hook plate seat 54 is fixedly connected to the fixed die 1, and a hook plate 53 fastened with the hook groove is arranged on the hook plate seat 54; the stroke block 52 is arranged on the movable die 2 in a rotating mode, and the pull rod seat 51 is arranged on the top plate 22 in a rotating mode;

referring to fig. 6, a guide groove 56 is formed in the stroke block 52, and a pulley 55 moving in the guide groove 56 is fixedly connected to the drawbar 5; the guide groove 56 is provided with two sections of straight parts, and the two straight parts are in transition by adopting an arc part;

before opening the mold, the hook groove of the hook rod 5 is buckled on the hook plate 53, and the pulley 55 is positioned in the lower straight part; in the initial stage of opening the die, the fixed die 1 and the top plate 22 are connected together by the drag hook rod 5, so that the fixed die and the top plate are kept relatively static; when the pulley 55 enters another straight portion from the arc portion, the hook groove is disengaged from the hook plate 53, and the top plate 22 moves along with the movable mold 2.

Through setting up the position of arc portion in the guide way 56, the separation opportunity of top pulling block 31 and cover half 1 is controlled to the timely separation after guaranteeing that ingate 12 breaks.

In summary, the invention provides an automatic die-stripping and handle-breaking device, which is provided with a top-pulling block and an inclined ejector rod, wherein the top-pulling block props against a fixed die after die opening and drives an ingate and a movable die to move relatively, so that the top-pulling block is torn and separated from a workpiece. The invention realizes the automatic separation of the ingate along with the movement of the movable mould when the mould is opened, replaces the subsequent cutting-off process, shortens the production flow and reduces the production cost.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (7)

1. An automatic material cutting handle device for mold demolding comprises a fixed mold and a movable mold; it is characterized by also comprising:

the top plate is arranged between the movable die and the movable die base; the top plate can move back and forth between the movable die and the movable die base;

the inclined ejector rod is slidably connected with the movable die in a penetrating manner, one end of the inclined ejector rod is fixedly connected with a jacking block positioned at the combination position of the fixed die and the movable die, and the other end of the inclined ejector rod is slidably arranged on the top plate; the inclined ejector rod and the moving direction of the movable die form a preset included angle; an ingate is formed between the top pulling block and the fixed die.

2. The automatic die-stripping and material-breaking handle device as claimed in claim 1, wherein the top-pulling block is further fixedly connected with an auxiliary-pulling block, and the auxiliary-pulling block is provided with a breakable groove.

3. The automatic die stripping and breaking handle device as claimed in claim 2, wherein the fixed die is provided with a fulcrum groove.

4. The automatic die stripper shoe handle apparatus of claim 1, wherein said angle between said lifter bar and the direction of movement of the movable die is not more than 12 °.

5. The automatic die stripper shoe apparatus of claim 1, wherein two parallel slotted plate members are secured to said top plate; a rail groove is formed in the slotted plate, and a hinged sliding block is arranged in the rail groove in a sliding manner; an inclined rod push block is clamped between the two hinged sliding blocks; the diagonal rod pushing block is fixedly connected with the diagonal rod.

6. The automatic die stripper apparatus of claim 5, wherein the lifter pusher is pivotally clamped between two hinged slides.

7. The automatic cutting handle device for demoulding of the die as claimed in any one of the claims 1 to 6, characterized in that a draw hook rod is connected between the fixed die and the top plate; one end of the pull hook rod is provided with a hook groove, and the other end of the pull hook rod is rotatably arranged on the pull rod seat; the rod body of the draw hook rod is also sleeved with a stroke block in a sliding manner; a hook plate seat is fixedly connected to the fixed die, and a hook plate fastened with the hook groove is arranged on the hook plate seat; the stroke block is arranged on the movable die in a rotating mode, and the pull rod seat is arranged on the top plate in a rotating mode;

a guide groove is formed in the stroke block, and a pulley moving in the guide groove is fixedly connected to the pull hook rod; two sections of straight portions of guide way adopt arc portion transition between two straight portions.

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