CN216732844U - Ejection structure of mold - Google Patents

Abstract

The utility model provides an ejection structure of a mold, and belongs to the technical field of molds. It has solved the inconvenient problem of current mould drawing of patterns, and work efficiency is low. The ejection structure of the die comprises a fixed die and a movable die, a die holder is arranged between the fixed die and the movable die, a plurality of accommodating holes are formed in the die holder, a die core is embedded in the accommodating holes, the movable die, the accommodating holes and the die core can surround to form a die cavity for injection molding, a pushing assembly is arranged between the fixed die and the die holder, the setting position of the pushing assembly corresponds to each accommodating hole in the die holder, a worker can push the pushing assembly through a pneumatic device, each workpiece in the die cavity is pushed through the pushing assembly, therefore, each workpiece is ejected out of the die cavity together, and the adhesion of each workpiece in the die cavity is avoided. The ejection structure of the die ensures convenient operation and improves production efficiency.

Description

Ejection structure of mold

Technical Field

The utility model belongs to the technical field of molds, and relates to an ejection structure of a mold.

Background

The mould is a variety of moulds and tools for obtaining required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, and is a tool for making blanks into products with specific shapes and sizes under the action of external force. The method is widely applied to the forming processing of blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like.

The mold in the prior art generally comprises a movable mold and a fixed mold (or a male mold and a female mold), wherein the fixed mold (the female mold) is provided with a plurality of cavities; in the state of opening the mold, a worker can fill a proper amount of blanks into each cavity, then cover the movable mold (the convex film) on the fixed mold to cool and shape each blank in the cavity to form a workpiece meeting the manufacturing standard, and then take out each workpiece from each cavity (i.e. demolding).

In the existing demoulding step, a worker generally holds a special clamping tool to clamp workpieces out of each cavity one by one, although the workpiece can be taken out sequentially in the mode, the outer surface of the workpiece is more or less adhered to the inner wall of the cavity in the cooling forming process, the worker needs to spend a large amount of effort to pull the workpiece out of the cavity, the operation is very inconvenient, and the working efficiency is low.

Disclosure of Invention

The utility model aims to provide an ejection structure of a die aiming at the problems in the prior art, and the technical problems to be solved by the utility model are as follows: the demolding convenience of the mold is guaranteed, and the working efficiency of the demolding machine is improved.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides an ejecting structure of mould, includes that cover half and lid close the movable mould on the cover half, a serial communication port, be equipped with the die holder between cover half and the movable mould, a plurality of accommodation holes have been seted up on the die holder, every the embedded mold core that is equipped with of accommodation hole, the cover half with be equipped with between the die holder with a plurality of the top push subassembly that the mold core position corresponds works as the movable mould lid closes when on the die holder, movable mould, accommodation hole inner wall and mold core three can surround and form the die cavity that is used for moulding plastics, works as the movable mould with when the cover half separates, the top push subassembly can push up the stock that makes the cooling design through the pneumatic means top that is used for doing the piston motion and be ejected the die cavity.

The ejection structure of the die comprises a fixed die and a movable die, wherein the movable die can cover the fixed die to realize die assembly, the movable die can be separated from the movable die to realize die opening, a die holder is arranged between the fixed die and the movable die, a plurality of accommodating holes are formed in the die holder, a die core is embedded in each accommodating hole, when the die is assembled, the movable die covered on the die holder can surround the inner walls of the accommodating holes and the die cores to form a die cavity, a certain amount of blank can be injected into the die cavity by a worker, so that the blank is cooled and shaped in the die cavity to form a workpiece meeting the manufacturing standard, an ejection component is arranged between the fixed die and the die holder, the arrangement position of the ejection component corresponds to each die core on the die holder, and the worker can upwards eject the ejection component through a pneumatic device (specifically a cylinder) in the process of demolding the workpiece, so that each die core is upwardly ejected through the ejection component, the workpieces in the cavity are pushed by the mold core, so that the workpieces are pushed out of the cavity together, and the workers can clamp the workpieces one by a special clamping tool, so that the workpieces are prevented from being adhered in the cavity, the convenience in operation is guaranteed, and the production efficiency is improved.

In the ejection structure of the die, the cross section of the die holder is rectangular, the die holder is detachably connected to the fixed die, and a plurality of groups of the accommodating holes are formed in one side, close to the movable die, of the die holder at intervals along the width direction of the die holder.

The cross-section of die holder specifically is the rectangle, and the die holder specifically adopts the mode of can dismantling the connection to fix on the cover half, makes things convenient for subsequent clearance, maintenance, and a plurality of accommodation hole divide into the multiunit, and arranges (specifically arranges to be the matrix form) along the width direction interval of cover half to make the staff can once only produce a plurality of work pieces, and the even and rule of setting up of multiunit accommodation hole, the portion that is favorable to follow-up top to push away the subassembly puts the convenience.

In the above ejection structure of the mold, the ejection assembly includes a plurality of ejector rods, and each ejector rod corresponds to one of the groups of the accommodating holes and is fixedly connected to the mold core in the group of the accommodating holes.

The pushing assembly specifically comprises a plurality of pushing rods, the positions of the pushing rods correspond to the positions of the groups of accommodating holes one by one, the mold cores in the groups of accommodating holes are fixedly connected with one of the pushing rods, the pneumatic device can drive the pushing rods and the mold cores to lift or lower through the movement of the piston of the pneumatic device in the demolding process, and in the lifting process, because the workpieces are shaped in the mold cavity, the bottoms of the workpieces are abutted against the mold cores, the mold cores continuously extrude the workpieces out of the mold cavity in the lifting process, so that the operation convenience is improved, and the working efficiency is improved.

In the ejection structure of the mold, the ejection assembly further comprises fixing blocks which are located at two ends of the ejector rod and are in a long strip shape, each fixing block is provided with a plurality of fixing blocks corresponding to one side edge of the ejector rod, the end part of the ejector rod is sunken to form a step-shaped clamping part, the ejector rod passes through the clamping part and is clamped in the fixing groove, and the other side of each fixing block is used for clamping a pneumatic device.

The top pushes away the subassembly and still includes the fixed block that is located each ejector pin both ends, every fixed block is rectangular form, its one side edge corresponds a plurality of ejector pins and sets up rather than the position, quantity assorted draw-in groove, the sunken joint portion that is the step form that forms in ejector pin both ends, in the assembling process, assembly personnel can fix the card of ejector pin's joint portion one-to-one to the draw-in groove in, and the opposite side of fixed block is by pneumatic means centre gripping, in the drawing of patterns in-process, pneumatic means can drive the fixed block motion through the piston motion of self, drive each ejector pin lifting or drop through the fixed block, avoid each ejector pin directly to be connected with drive arrangement from this, guarantee the life of each ejector pin.

In the ejecting structure of foretell mould, one side that the die holder is close to the cover half is seted up a plurality of spouts that run through self both ends one, and is a plurality of spout one is followed the die holder width direction interval is arranged and is organized with a plurality of the accommodation hole position one-to-one, the cover half cross-section is the rectangle, a plurality of spouts two that run through self both ends are seted up at the cover half top, and is a plurality of spout two is followed the cover half width direction interval is arranged and with a plurality of spout a position one-to-one, and is a plurality of the inlaying of ejector pin one-to-one is established in the spout two, ejector pin can along the cell wall slip of spout two gets into spout one.

One side of the die holder close to the fixed die is provided with a plurality of first sliding grooves, each first sliding groove penetrates through two ends of the die holder, the first sliding grooves are distributed at intervals along the width direction of the die holder, each first sliding groove corresponds to one group of accommodating holes, the cross section of the fixed die is rectangular, the top of the fixed die is provided with a plurality of second sliding grooves, the second sliding grooves penetrate through two ends of the fixed die, the second sliding grooves are distributed at intervals along the width direction of the fixed die, the positions of the second sliding grooves correspond to the positions of the first sliding grooves one by one, each push rod is embedded in the second sliding grooves one by one, in the actual working process, each push rod can slide into the first sliding grooves from the second sliding grooves along the groove walls of the first sliding grooves and the second sliding grooves due to the thrust of a pneumatic device, so that the demoulding of workpieces is realized on the premise that the die holder is fixed on the fixed die, meanwhile, the arrangement of the first sliding grooves and the second sliding grooves can also limit the sliding amount of the push rods, the ejector rods or the fixed die are prevented from being displaced (namely, the ejector rods and the groups of accommodating holes are not matched) due to vibration and other factors after the die is used for a long time.

In the ejection structure of the die, a first fixing hole is formed in the circumferential corner of one side, close to the movable die, of the die holder, a second fixing hole is formed in the circumferential corner of the top of the fixed die, and the die holder penetrates through the fixing holes through fasteners and is screwed into the second fixing holes for fixing.

The die holder is close to one side circumference edge of movable mould and has seted up fixed orifices one, and the circumference edge at cover half self top has seted up a plurality of fixed orifices two, and the die holder specifically passes the fixed orifices through fastener (bolt, screw, thread pin etc.) and twists fixed orifices two in the lump, makes the die holder can dismantle simultaneously with the cover half from this, guarantees that it is firm when fixing a position on the cover half, avoids stock cooling forming in-process die holder to take place the displacement, causes the stock to finalize the design the back and does not accord with the manufacturing standard.

Compared with the prior art, the ejection structure of the mold has the following advantages:

one, this ejecting structure of mould includes cover half and movable mould, be provided with the die holder between cover half and the movable mould, a plurality of accommodation hole has been seted up on the die holder, the embedded mold core that is equipped with of every accommodation hole, the movable mould behind the compound die, accommodation hole inner wall and mold core three surround and form the die cavity, the staff can inject a certain amount of stock in the die cavity, make the stock cooling design become the work piece, be provided with the top push subassembly between cover half and the die holder, carry out the drawing of patterns in-process, the staff can push the top push subassembly through pneumatic means, make the top push subassembly with the ejecting die cavity of work piece, thereby avoid each work piece adhesion in the die cavity, and then guarantee the operation convenience, and the production efficiency is improved.

The die holder can be detachably connected to the fixed die, subsequent cleaning and maintenance are facilitated, the plurality of accommodating holes are divided into a plurality of groups and are arranged at intervals along the width direction of the fixed die, the die can produce a plurality of workpieces at one time, the plurality of groups of accommodating holes are arranged uniformly and regularly, and convenience is brought to placement of a follow-up pushing assembly.

Thirdly, the top pushes the subassembly and specifically includes a plurality of ejector pins, each ejector pin's position and the position one-to-one of each group accommodation hole, lie in each die core of each group accommodation hole and all link firmly with one of them ejector pin, during follow-up drawing of patterns, pneumatic means can drive each ejector pin, die core lifting or descend for the die core is along with each work piece of continuous extrusion of ejector pin lifting in-process, together extrudes the die cavity with each work piece from this, with this improvement simple operation nature, promotion work efficiency.

Fourthly, the top pushes away the subassembly and still includes the fixed block that is located the ejector pin both ends, and a plurality of draw-in grooves are seted up to fixed block one side reason correspondence ejector pin, and the sunken joint portion that forms the step form in every ejector pin both ends, and the assembler can block into ejector pin's joint portion to the draw-in groove, and the opposite side of fixed block is by pneumatic means centre gripping, drives each ejector pin lifting or descends through the fixed block, avoids each ejector pin directly to be connected with drive arrangement from this, guarantees each ejector pin's life.

And fifthly, a plurality of first sliding grooves are formed in one side, close to the fixed die, of the die holder along the width direction of the die holder, each first sliding groove corresponds to one group of accommodating holes in the corresponding sliding groove, a plurality of second sliding grooves corresponding to the first sliding grooves are formed in the top of the fixed die, each ejector rod is embedded in each second sliding groove in a one-to-one correspondence mode, each ejector rod can slide into the first sliding groove from the second sliding groove along the groove walls of the first sliding groove and the second sliding groove due to the thrust of a pneumatic device, accordingly, demolding of each workpiece is achieved on the premise that the die holder is fixed on the fixed die and cannot move, the sliding amount of the ejector rods can be limited due to the arrangement of the first sliding grooves and the second sliding grooves, and displacement of the ejector rods or the fixed die due to factors such as vibration after the die is used for a long time is avoided.

Sixthly, a circumferential edge of one side, close to the movable die, of the die holder is provided with a first fixing hole, a plurality of second fixing holes are formed in the circumferential edge of the top of the fixed die, the die holder penetrates through the fixing holes through fasteners and is screwed into the second fixing holes together, and the die holder and the fixed die can be detached while the die holder is firmly positioned on the fixed die.

Drawings

Fig. 1 is a first structural schematic diagram of the ejection structure of the mold.

Fig. 2 is a second structural schematic diagram of the ejection structure of the mold.

Fig. 3 is a sectional view of the ejection structure of the present mold and a partially enlarged view thereof.

Fig. 4 is a schematic view of the die holder.

FIG. 5 is a schematic structural diagram of a stationary mold.

Fig. 6 is a schematic view of the pushing assembly and a partially enlarged view thereof.

In the figure, 1, a fixed die; 1a, a second sliding chute; 1b, a second fixing hole; 2. moving the mold; 3. a die holder; 3a, an accommodating hole; 3a1, mold core; 3b, a first sliding chute; 3c, a first sliding chute; 4. a pushing assembly; 4a, pushing the push rod; 4a1, a snap-in part; 4b, fixing blocks; 4b1, fixed slot; 5. a mold cavity.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-6, the ejection structure of the die comprises a fixed die 1 and a movable die 2 covering the fixed die 1, a die holder 3 is arranged between the fixed die 1 and the movable die 2, the cross sections of the fixed die 1, the movable die 2 and the die holder 3 are rectangular, as shown in fig. 4-5, a first fixing hole 3c is formed in the circumferential corner of one side of the die holder 3 close to the movable die 2, a second fixing hole 1b is formed in the circumferential corner of the top of the fixed die 1, and the fixed die 1 and the die holder 3 penetrate through the first fixing hole 3c through a fastener and are screwed into the second fixing hole 1b for fixing.

As shown in fig. 1 to 6, four sliding grooves 1a penetrating through two ends of the fixed mold 1 are formed in the top of the fixed mold 1, the sliding grooves 1a are arranged at intervals along the width direction of the fixed mold 1, four sliding grooves 3b penetrating through two ends of the fixed mold are formed in one side, close to the fixed mold 1, of the mold base 3, the sliding grooves 3b are arranged at intervals along the width direction of the mold base 3, in addition, the sliding grooves 3b correspond to the sliding grooves 1a one by one, four groups of accommodating holes 3a are formed in the top of the mold base 3 along the length direction of the mold base, the accommodating holes 3a in each group are at least four and arranged at intervals, each group of accommodating holes 3a corresponds to one sliding groove 1a, and in addition, a mold core 3a1 is embedded in each accommodating hole 3 a.

As shown in fig. 1-6, a pushing assembly 4 is disposed between the fixed mold 1 and the mold base 3, the pushing assembly 4 specifically includes four strip-shaped pushing rods 4a and two strip-shaped fixing blocks 4b, the two fixing blocks 4b are respectively located at two ends of each pushing rod 4a, one side edge of each fixing block 4b is provided with four fixing grooves 4b1 along the length direction thereof, the position of each fixing groove 4b1 corresponds to each pushing rod 4a, the end of each pushing rod 4a is recessed to form a step-shaped clamping portion 4a1, a plurality of clamping portions 4a1 can be correspondingly clamped in one of the fixing grooves 4b1, the other side of the fixing block 4b is clamped by a pneumatic device (specifically, an air cylinder) and in addition, the pushing rods 4a are correspondingly embedded in the sliding grooves two 1a one by one to one, a cavity 5 can be formed by the mold core 3a1, the inner wall of the accommodating hole 3a and the movable mold 2, and the bottoms of the mold cores 3a1 positioned in each group of accommodating holes 3a are welded and fixed with the outer surface of one ejector rod 4a, during demolding, the pneumatic device can move to push the fixed block 4b upwards, the fixed block 4b correspondingly drives each ejector rod 4a to upwards lift along the chute walls of the first chute 3b and the second chute 1a (so that the ejector rod 4a slides from the second chute 1a to the first chute 3b), and at the moment, each ejector rod 4a drives each mold core 3a1 to upwards move, so that each mold core 3a1 can forcibly push the workpiece positioned in the mold cavity 5 upwards, and the workpiece is extruded out of the mold cavity 5.

The working principle is as follows: an operator raises the movable mold 2, lowers the movable mold 2 after filling blanks in each cavity 5, cools and molds the blanks in each cavity 5 to form workpieces, then raises the movable mold 2 again and starts the pneumatic device, so that the pneumatic device pushes the fixed block 4b upwards, the fixed block 4b correspondingly drives each ejector rod 4a to upwards lift along the first chute 3b and the chute wall of the second chute 1a (so that the ejector rod 4a slides into the first chute 3b from the second chute 1a), at the moment, the ejector rod 4a can drive the mold core 3a1 to upwards slide, and the mold core 4b pushes the bottom of each workpiece, so that the workpieces are extruded out of the cavities 5.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although 1, fixed die is used more herein; 1a, a second sliding chute; 1b, a second fixing hole; 2. moving the mold; 3. a die holder; 3a, an accommodating hole; 3a1, mold core; 3b, a first sliding chute; 3c, a first sliding chute; 4. a pushing assembly; 4a, pushing the push rod; 4a1, a snap-in part; 4b, fixing blocks; 4b1, fixed slot; 5. cavity, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (6)

1. An ejection structure of a die comprises a fixed die (1) and a movable die (2) covered on the fixed die (1), it is characterized in that a die holder (3) is arranged between the fixed die (1) and the movable die (2), a plurality of containing holes (3a) are arranged on the die holder (3), a die core (3a1) is embedded in each containing hole, a pushing component (4) corresponding to the mold cores (3a1) is arranged between the fixed mold (1) and the mold base (3), when the movable mold (2) is covered on the mold base (3), the movable mold (2), the inner wall of the containing hole (3a) and the mold core (3a1) can surround to form a mold cavity (5) for injection molding, when the movable die (2) is separated from the fixed die (1), the pushing assembly (4) can push the cooled and shaped blank out of the cavity (5) through a pneumatic device for piston movement.

2. The ejection structure of a mold according to claim 1, wherein the mold base (3) has a rectangular cross section, the mold base (3) is detachably connected to the fixed mold (1), and a plurality of sets of the receiving holes (3a) are formed in the side of the mold base (3) close to the movable mold (2) at intervals along the width direction of the mold base.

3. The ejection structure of a mold according to claim 2, wherein the ejector assembly (4) comprises a plurality of ejector rods (4a), each ejector rod (4a) corresponds to one of the receiving holes (3a) and is fixedly connected to the mold core (3a1) in the receiving hole (3 a).

4. The ejection structure of the mold according to claim 3, wherein the ejection assembly (4) further comprises fixing blocks (4b) located at two ends of the ejector rod (4a) and having a long strip shape, a fixing groove (4b1) is formed at an edge of one side of each fixing block (4b) corresponding to a plurality of ejector rods (4a), the end of each ejector rod (4a) is recessed to form a step-shaped clamping portion (4a1), the ejector rod (4a) is clamped in the fixing groove (4b1) through the clamping portion (4a1), and the other side of each fixing block (4b) is used for clamping a pneumatic device.

5. The mold ejection structure according to claim 4, wherein one side of the mold base (3) close to the fixed mold (1) is provided with a plurality of first sliding grooves (3b) which penetrate through two ends of the mold base, the plurality of first sliding grooves (3b) are arranged at intervals along the width direction of the mold base (3) and correspond to a plurality of groups of accommodating holes (3a) in a one-to-one manner, the section of the fixed die (1) is rectangular, a plurality of sliding chutes II (1a) penetrating through two ends of the fixed die (1) are formed in the top of the fixed die (1), the sliding chutes II (1a) are distributed at intervals along the width direction of the fixed die (1) and correspond to the sliding chutes I (3b) in position one by one, a plurality of push rods (4a) are embedded in the sliding chutes II (1a) in one-to-one correspondence, the ejector rod (4a) can slide along the groove wall of the second sliding groove (1a) to enter the first sliding groove (3 b).

6. The mold ejection structure according to any one of claims 1 to 5, wherein a first fixing hole (3c) is formed at a peripheral corner of one side of the mold base (3) close to the movable mold (2), a second fixing hole (1b) is formed at a peripheral corner of the top of the fixed mold (1), and the mold base (3) is fixed by a fastener passing through the first fixing hole (3c) and screwing into the second fixing hole (1 b).

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