CN210501230U - Upper-release full-circle reverse buckle structure of sliding block - Google Patents

Abstract

The utility model discloses a take off complete round back-off structure on slider, pop out piece, right deflector, right core, right side and pop out piece and hydro-cylinder including take-up housing, central slider, the core of loosing core, left deflector, left core, a left side, drive central slider through hydro-cylinder drive take-up housing and drive and retreat, realized driving the core of loosing core and carry out the function of loosing core along the axial. The left and right guide plates are driven by the central slider and drive the left and right cores to disengage from the left and right half-circumference reverse buckles of the plastic part product, so that the function of disengaging from the full-circumference reverse buckles on the slider is realized, in order to ensure that the left and right cores only radially disengage from the buckling positions of the long pipe of the plastic part product at the beginning stage, a left and right pop-up block is innovatively designed and used for preventing the left and right guide plates from retreating in the process of disengaging from the left half-circumference reverse buckles, and the left and right cores are prevented from moving along the axial direction. The utility model provides a whole round back-off loose core the unable normal demolding of direction at the slider problem, realized loosing core to the inner bore on the slider and take off the function of whole round back-off simultaneously.

Description

Upper-release full-circle reverse buckle structure of sliding block

Technical Field

The utility model relates to an injection mold technical field especially relates to a take off all around back-off structure on slider.

Background

An injection mold is a tool for producing plastic products and consists of a front mold (also called a fixed mold or a female mold) and a rear mold (a movable mold or a male mold), wherein the front mold and the rear mold are closed to form a pouring system and a cavity during injection molding, and the front mold and the rear mold are separated during mold opening so as to take out the plastic products. However, some plastic products with special structures have the situation that the inner hole is loose core and the full-circle reverse buckle is simultaneously released, referring to fig. 1, the plastic product 100 is a product on an automobile engine, the side surface of the product is provided with a cylindrical long pipe 110, after injection molding, the inner hole 111 of the long pipe needs to be loose core, the outer side of the outer diameter of the long pipe close to the pipe opening is provided with the full-circle reverse buckle 112, the full-circle reverse buckle cannot be normally ejected in the slider core pulling direction, and the outer diameter is inserted into a pipe and cannot have too large section difference and burrs, so a mold structure suitable for releasing the full-circle reverse buckle on the slider of the plastic product needs to be designed.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a take off all around back-off structure on slider has realized on the slider that the function of taking off all around back-off simultaneously is loosed core to the inner hole, and has effectively solved the poor and burr problem of section of product.

The technical scheme of the utility model is realized like this:

a slider upper-stripping full-circumference inverted buckle structure comprises a slider seat, a central slider, a core-pulling core, a left guide plate, a left core, a left pop-up block, a right guide plate, a right core, a right pop-up block and an oil cylinder, the central slider is arranged at the front end of the slider seat, the core-pulling core is arranged at the front end of the central slider, the core-pulling core is used for forming an inner hole of a long pipe of a plastic part product, the left guide plate and the right guide plate are arranged at the bottom of the central sliding block side by side, the left core is arranged on the edge of the top surface of the left guide plate, and surrounds the left side and the front end of the central slider, the right core is arranged on the top surface edge of the right guide plate, the front part of the left mold core is butted with the front part of the right mold core together to form a sleeve which is used for forming the whole circumference of the outer side of a long pipe of a plastic part product and is reversely buckled; the left ejection block is arranged on the edge of the top surface of the left guide plate and is positioned between the left mold core and the slide block seat; the right pop-up block is arranged on the edge of the top surface of the right guide plate and is positioned between the right mold core and the slide block seat; the oil cylinder drives the sliding block seat and the central sliding block to slide along the core pulling direction, the central sliding block further drives the core pulling core to pull core, meanwhile, the central sliding block drives the left guide plate and drives the left core to be separated from the left half-circumference reverse buckle of a plastic part product, the central sliding block drives the right guide plate and drives the right core to be separated from the right half-circumference reverse buckle of the plastic part product, the left ejection block is used for preventing the left guide plate from moving backwards in the left half-circumference reverse buckle removing process, and the right ejection block is used for preventing the right guide plate from moving backwards in the right half-circumference reverse buckle removing process; and after the full-circle back-off, the central slider drives the core-pulling core, the left core and the right core to retreat simultaneously to separate the plastic part product.

The injection mold further comprises a front mold block which is arranged on a front mold of the injection mold and used for preventing the slide block seat from retreating when the mold is closed.

The injection mold further comprises a rear mold first beam block and a rear mold second beam block which are arranged on a rear mold of the injection mold and used for clamping the front part of the left mold core and the front part of the right mold core when the mold is closed.

Further, the center slider drives the left guide plate and drives the left core to separate from the left half-circumference inverted buckle of the plastic part product, and the structure is as follows: the left guide plate is connected with the bottom of the central slider in a sliding mode through a first inclined guide groove and a first inclined guide strip which are matched with each other, and the first inclined guide groove extends from the rear end of the central slider to the left front; the center slider drive right deflector and drive right core throw off the right half circumference back-off structure of moulding a product and do: the right guide plate is connected with the bottom of the central slider in a sliding mode through a second inclined guide groove and a second inclined guide strip which are matched with each other, and the second inclined guide groove extends from the rear end of the central slider to the right front side.

Furthermore, the left ejecting block is in sliding connection with the left side of the central sliding block through a first T-shaped groove and a first T-shaped block which are matched with each other, and a first spring is arranged between the left ejecting block and the sliding block seat; the right side pops out the piece with through the second T type groove and the second T type piece sliding connection who mutually supports between the right side of center slider, just the right side pops out the piece with install the second spring between the slider seat.

Furthermore, the top left side edge of the central sliding block is hollowed to form a first hanging table, the top of the left mold core is provided with a first hook matched with the first hanging table, the top right side edge of the central sliding block is hollowed to form a second hanging table, and the top of the right mold core is provided with a second hook matched with the second hanging table.

The top mold core is fixedly connected to the front end of the slider seat and positioned at the tops of the central slider, the left mold core and the right mold core, and the front end of the top mold core forms a forming surface for forming part of the side surface of a plastic part product.

The utility model has the advantages that: the utility model provides a take off full circle back-off structure on slider, retreat through hydro-cylinder drive take-up housing and drive central slider, realized the drive and taken out the core and carry out the function of loosing core along the axial of moulding a product, and in the time of loosing core, it is left by the drive of central slider, right side deflector is to radial movement, can drive a left side, right side core radially takes off full circle back-off, left side deflector area moves left core promptly and throws left half round back-off, right side deflector drives right core and throws off half round back-off, thereby realized taking off the function of full circle back-off on the slider, only radially throw off the long tube of moulding a product at the beginning stage in order to make left core and right core, the utility model discloses the innovation design left side pops out the piece and pops out the piece with the right side, and a left side pops out the piece and is used for preventing left side deflector to retreat at the in-process of taking off left half round back-off. The right pop-up block is used for preventing the right guide plate from retreating in the process of taking off the right half-circumference reverse buckle, so that the right core is prevented from moving along the axial direction. Therefore, the utility model provides a whole round back-off loose core the unable normal demolding of direction at the slider problem, realized loosing core to the inner bore on the slider and take off whole round back-off's function simultaneously.

Drawings

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

FIG. 2 is a schematic structural view of the slider-up full-circle inverted buckle structure of the present invention;

FIG. 3 is a schematic structural view of the slider after removing the top core from the full-circle undercut structure;

fig. 4 is a schematic structural view of the slider after removing the top core, the left core, the first beam block of the rear mold and the second beam block of the rear mold;

fig. 5 is a schematic view of the center slide block of the present invention cooperating with the left pop-up block and the right pop-up block;

FIG. 6 is a schematic view of the center slide block of the present invention cooperating with the left and right guide plates;

fig. 7 is a schematic diagram of the slider of the present invention for releasing the inverted buckle structure and the plastic product.

Detailed Description

In order to make the present invention more obvious and understandable, the following description of the embodiments of the present invention is made in detail with reference to the accompanying drawings.

FIG. 2 is a schematic structural view of the slider-up full-circle inverted buckle structure of the present invention; FIG. 3 is a schematic structural view of the slider after removing the top core from the full-circle undercut structure; fig. 4 is a schematic structural view of the slider after removing the top core, the left core, the first beam block of the rear mold and the second beam block of the rear mold; fig. 5 is a schematic diagram of the cooperation of the center slide block with the left pop-up block and the right pop-up block of the present invention; fig. 6 is a schematic view of the cooperation of the center slide block with the left guide plate and the right guide plate of the present invention; fig. 7 is a schematic diagram of the slider of the present invention for releasing the inverted buckle structure and the plastic product. As shown in fig. 2, 3, 4, 5, 6 and 7, a slider-on-off full-circumference undercut structure comprises a slider seat 1, a central slider 2, a core pulling core 3, a left guide plate 4, a left core 5, a left pop-up block 6, a right guide plate 7, a right core 8, a right pop-up block 9 and an oil cylinder 10, wherein the central slider is mounted at the front end of the slider seat, the core pulling core is mounted at the front end of the central slider, the core pulling core is used for forming an inner hole 111 of a long pipe 110 of a plastic product 100, the left guide plate and the right guide plate are arranged at the bottom of the central slider side by side, the left core is mounted on the top surface edge of the left guide plate and surrounds the left side and the front end of the central slider, the right core is mounted on the top surface edge of the right guide plate and surrounds the right side and the front end of the central slider, and the front portion of the left core and the front portion of the right core are butted together, a sleeve forming a full-circumference undercut 112 outside the long tube for molding the plastic product; the left ejection block is arranged on the edge of the top surface of the left guide plate and is positioned between the left mold core and the slide block seat; the right pop-up block is arranged on the edge of the top surface of the right guide plate and is positioned between the right mold core and the slide block seat; the oil cylinder drives the sliding block seat and the central sliding block to slide along the core pulling direction, the central sliding block further drives the core pulling core to pull core, meanwhile, the central sliding block drives the left guide plate and drives the left core to be separated from the left half-circumference reverse buckle of a plastic part product, the central sliding block drives the right guide plate and drives the right core to be separated from the right half-circumference reverse buckle of the plastic part product, the left ejection block is used for preventing the left guide plate from moving backwards in the left half-circumference reverse buckle removing process, and the right ejection block is used for preventing the right guide plate from moving backwards in the right half-circumference reverse buckle removing process; and after the full-circle back-off, the central slider drives the core-pulling core, the left core and the right core to retreat simultaneously to separate the plastic part product.

In the structure, the central slider and the slider seat are arranged in the chute on the rear template of the injection mold in a sliding way along the core pulling direction, the oil cylinder is arranged on the side wall of the rear template through the oil cylinder seat, the slider seat is driven by the oil cylinder and drives the central slider to retreat, the function of driving the core-pulling core to withdraw along the axial direction of a plastic product can be realized, and the left and right guide plates are driven by the central slider to move in the radial direction during core pulling, so that the left and right cores can be driven to reversely buckle in the whole circumference along the radial direction, namely the left guide plate drives the left core to disengage from the left half-circumference reverse buckle, the right guide plate drives the right core to disengage from the half-circumference reverse buckle, thereby realizing the function of disengaging from the whole-circumference reverse buckle on the slider, in order to ensure that the left core and the right core only disengage from the long pipe of the plastic product in the radial direction at the beginning stage, the utility model innovatively designs a left pop-up block and a right pop-, the left core is prevented from moving axially. The right pop-up block is used for preventing the right guide plate from retreating in the process of taking off the right half-circumference reverse buckle, so that the right core is prevented from moving along the axial direction. Therefore, the utility model provides a whole round back-off loose core the unable normal demolding of direction at the slider problem, realized loosing core to the inner bore on the slider and take off whole round back-off's function simultaneously.

Preferably, referring to fig. 2 and 3, the injection mold further comprises a front mold block 11 mounted on a front mold of the injection mold for preventing the slide holder from retreating when the mold is closed. Through set up the front mould bunch piece on the front mould, can fix a position the slider seat after the compound die, guarantee that the position of top core, loose core, left core and right core does not take place to remove.

Preferably, referring to fig. 2 and 3, a rear mold first block 12 and a rear mold second block 13 are further included, which are mounted on the rear mold of the injection mold for clamping the front portion of the left core and the front portion of the right core when closing the molds. Through set up the first piece of restrainting of back mould and the second piece of restrainting of back mould on the back mould, crowded tight left core and right core behind the die change, can effectively solve the poor burr problem of the section of moulding a product.

Preferably, referring to fig. 5 and 6, the structure that the central slider drives the left guide plate and drives the left core to disengage from the left half-circumference undercut of the plastic part product is as follows: the left guide plate is in sliding connection with the bottom of the central slider through a first inclined guide groove 14 and a first inclined guide strip 15 which are matched with each other, and the first inclined guide groove extends from the rear end of the central slider to the left front; the center slider drive right deflector and drive right core throw off the right half circumference back-off structure of moulding a product and do: the right guide plate is connected with the bottom of the central slider in a sliding mode through a second inclined guide groove 16 and a second inclined guide strip 17 which are matched with each other, and the second inclined guide groove extends towards the right front from the rear end of the central slider. Through the cooperation of first oblique guide way and first oblique gib block, can realize when loosing core that the central slider moves back, drive left deflector and left type core move to the front left direction, and simultaneously, through the cooperation of second oblique guide way and the oblique gib block of second, can realize when loosing core that the central slider moves back, drive right deflector and left type core move to the front left direction, and a left side, right side guide block is popped out the piece again by a left side, the right side prevents, therefore, when the central slider moves backward, left type core and right core of both sides are left, under the effect that the piece was popped out on the right side, will outwards remove simultaneously and throw off the complete turn-over. The structure design has compact space and very long guide, and can effectively solve the problems of small space on the die, limited structure design, easy blocking and the like.

Preferably, referring to fig. 5 and 6, the left ejection block is slidably connected with the left side of the central slider through a first T-shaped groove 18 and a first T-shaped block 19 which are matched with each other, and a first spring is installed between the left ejection block and the slider seat; the right side pops out the piece with through mutually supporting second T type groove 20 and second T type piece 21 sliding connection between the right side of center slider, just the right side pop out the piece with install the second spring between the slider seat. Therefore, the left ejection block and the central sliding block are connected through the first T-shaped groove and the first T-shaped block, so that the function that the left mold core is prevented from retreating by the left ejection block in the initial stage and the left mold core is driven by the central sliding block to move together after the complete reverse buckle removal is completed can be realized. Similarly, the right pop-up block and the central sliding block are connected through the second T-shaped groove and the second T-shaped block, so that the function that the right core is prevented from retreating by the right pop-up block in the initial stage and the right core is driven by the central sliding block to move together after the complete-circle back-off is finished can be realized. Wherein, at the in-process of moulding plastics, first spring is compression state setting and pops out between the piece at take-up housing and a left side, and the second spring is compression state setting and pops out between the piece at take-up housing and the right side, and like this, when the take-up housing retreats, first spring, second spring restoring force can drive a left side and pop out the piece, the piece is popped out on the right side to play and prevent left and right deflector retreating taking off the in-process of whole week back-off, avoided left and right core along axial displacement's function. The first and second springs are preferably mounted in a structure in which slots are formed in the left and right ejecting blocks and the slider holder, but are not limited thereto, and other mounting methods may be used.

Preferably, referring to fig. 3 and 4, the top left side edge of the central slider is hollowed to form a first hanging platform 201, the top of the left core is formed with a first hook 501 matched with the first hanging platform, the top right side edge of the central slider is hollowed to form a second hanging platform 202, and the top of the right core is formed with a second hook 801 matched with the second hanging platform. The left core and the central sliding block are connected through the first hanging table and the first hook, so that the function that the left core is not driven to retreat in the initial stage, and the left core is driven to retreat simultaneously after the left core is taken off and reversed in the whole circumference can be realized. Similarly, the right core and the center slide block are connected through the second hanging table and the second hook, so that the function that the right core is not driven to retreat in the starting stage, and the right core is driven to retreat simultaneously after the complete round reverse buckle removal is completed can be realized.

Preferably, referring to fig. 2, the mold further includes a top core 22 fixed to the front end of the slider seat and located on the top of the central slider, the left core and the right core, and the front end of the top core forms a molding surface 221 for molding a part of the side surface of the molded product. Thus, the top core is integrated on the slide block and can be used for forming part of the side surface of the plastic part product.

The utility model discloses take off action process as follows of all around back-off structure on the slider:

1) opening the mold in the 1 st stage: the first beam block of the back mould and the second beam block of the back mould are contracted downwards for a distance and are separated from the left mould core, the left guide plate, the right mould core and the right guide plate.

2) Opening the mold in the 2 nd stage: and opening the front die and the rear die, and driving the front die block to leave the sliding block seat by the front die.

3) Opening the mold in the 3 rd stage: the slider seat drives the central slider to move backwards, the slider seat drives the top mold core to separate from the side surface of the plastic product, the central slider retreats to drive the core-pulling mold core to pull core, and meanwhile, under the control action of the left pop-up block and the right pop-up block, the central slider drives the left guide plate and the right guide plate on two sides to move towards two sides (along the radial direction of the long pipe), so that the left mold core and the right mold core separate from the full-circle back-off of the long pipe of the plastic product.

4) Opening the mold in the 4 th stage: the sliding block seat drives the central sliding block to continuously move backwards, and the central sliding block drives the core-pulling mold core, the left mold core, the right mold core and the top mold core to move backwards together until a plastic part product is ejected.

The above embodiments have been described in detail with reference to the accompanying drawings. Those skilled in the art can make various modifications and changes to the above embodiments without departing from the spirit of the present invention, and the scope of the present invention is also covered by the appended claims.

Claims (7)

1. The utility model provides a take off full round back-off structure on slider which characterized in that: the core pulling mechanism comprises a slider seat (1), a central slider (2), a core pulling core (3), a left guide plate (4), a left core (5), a left popping block (6), a right guide plate (7), a right core (8), a right popping block (9) and an oil cylinder (10), wherein the central slider is installed at the front end of the slider seat, the core pulling core is installed at the front end of the central slider and is used for forming an inner hole (111) of a long pipe (110) of a plastic part product (100), the left guide plate and the right guide plate are arranged at the bottom of the central slider side by side, the left core is installed on the top surface edge of the left guide plate and surrounds the left side and the front end of the central slider, the right core is installed on the top surface edge of the right guide plate and surrounds the right side and the front end of the central slider, and the front part of the left core and the front part of the right core are butted together, forming a sleeve of a full-circumference undercut (112) outside the long tube for molding the plastic part product; the left ejection block is arranged on the edge of the top surface of the left guide plate and is positioned between the left mold core and the slide block seat; the right pop-up block is arranged on the edge of the top surface of the right guide plate and is positioned between the right mold core and the slide block seat; the oil cylinder drives the sliding block seat and the central sliding block to slide along the core pulling direction, the central sliding block further drives the core pulling core to pull core, meanwhile, the central sliding block drives the left guide plate and drives the left core to be separated from the left half-circumference reverse buckle of a plastic part product, the central sliding block drives the right guide plate and drives the right core to be separated from the right half-circumference reverse buckle of the plastic part product, the left ejection block is used for preventing the left guide plate from moving backwards in the left half-circumference reverse buckle removing process, and the right ejection block is used for preventing the right guide plate from moving backwards in the right half-circumference reverse buckle removing process; and after the full-circle back-off, the central slider drives the core-pulling core, the left core and the right core to retreat simultaneously to separate the plastic part product.

2. The full-circle undercut on slider structure of claim 1, wherein: the injection mold further comprises a front mold block (11) which is arranged on a front mold of the injection mold and used for preventing the slide block seat from retreating when the mold is closed.

3. The full-circle undercut on slider structure of claim 1, wherein: the injection mold further comprises a rear mold first block (12) and a rear mold second block (13) which are arranged on a rear mold of the injection mold and used for clamping the front part of the left core and the front part of the right core when the mold is closed.

4. The full-circle undercut on slider structure of claim 1, wherein: the center slider drive left deflector and drive left core throw off the structure of the left half turn-back of moulding a product and do: the left guide plate is in sliding connection with the bottom of the central slider through a first inclined guide groove (14) and a first inclined guide strip (15) which are matched with each other, and the first inclined guide groove extends from the rear end of the central slider to the left front; the center slider drive right deflector and drive right core throw off the right half circumference back-off structure of moulding a product and do: the right guide plate is connected with the bottom of the central slider in a sliding mode through a second inclined guide groove (16) and a second inclined guide strip (17) which are matched with each other, and the second inclined guide groove extends towards the right front from the rear end of the central slider.

5. The full-circle undercut on slider structure of claim 1, wherein: the left ejecting block is in sliding connection with the left side of the central sliding block through a first T-shaped groove (18) and a first T-shaped block (19) which are matched with each other, and a first spring is arranged between the left ejecting block and the sliding block seat; the right side pops out the piece with through mutually supporting second T type groove (20) and second T type piece (21) sliding connection between the right side of center slider, just the right side pop out the piece with install the second spring between the slider seat.

6. The full-circle undercut on slider structure of claim 1, wherein: the top left side edge of the central sliding block is hollowed to form a first hanging table (201), the top of the left core is provided with a first hook (501) matched with the first hanging table, the top right side edge of the central sliding block is hollowed to form a second hanging table (202), and the top of the right core is provided with a second hook (801) matched with the second hanging table.

7. The full-circle undercut on slider structure of claim 1, wherein: the top core (22) is fixedly connected to the front end of the slider seat and is positioned on the tops of the central slider, the left core and the right core, and the front end of the top core forms a forming surface (221) for forming part of the side surface of a plastic part product.

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