CN210679551U - Rotary demolding mechanism with large torsion - Google Patents

Rotary demolding mechanism with large torsion Download PDF

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Publication number
CN210679551U
CN210679551U CN201921281257.3U CN201921281257U CN210679551U CN 210679551 U CN210679551 U CN 210679551U CN 201921281257 U CN201921281257 U CN 201921281257U CN 210679551 U CN210679551 U CN 210679551U
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threaded
core
threaded core
cavity
finished
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CN201921281257.3U
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方伟
刘益发
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Lne Precision Engineering Shanghai Co ltd
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Lne Precision Engineering Shanghai Co ltd
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Abstract

The utility model relates to the technical field of mold equipment, in particular to a rotary demolding mechanism with large torsion, which comprises a female mold and a male mold, wherein the female mold and the male mold are matched with each other to form a cavity; the threaded core is rotationally connected to the male die, the top end of the threaded core extends into the cavity, and the bottom of the threaded core with the external thread is arranged on the base with the internal thread in a threaded connection mode; the driving assembly is used for driving the threaded core to rotate; and the ejection assembly is used for demolding the finished product in the cavity. The embodiment of the utility model provides an among the big rotatory demoulding mechanism of torsion, before the branch mould, make the driving gear drive threaded core rotate by hydro-cylinder pulling rack, in view of the relation that has a plurality of keyways on the threaded core, after the finished product regulation pitch is released to the straight line in the rotation in, public mould and master model part afterwards, under the effect of ejecting machine, ejector pin passes through the connecting rod and promotes about ejector plate group drive hollow ejector pin messenger finished product drawing of patterns.

Description

Rotary demolding mechanism with large torsion
Technical Field
The utility model relates to a mould equipment technical field specifically is a rotatory demoulding mechanism that torsion is big.
Background
The die refers to various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge.
The inner cavity shape of the die can enable the blank to obtain a corresponding three-dimensional shape. The mold generally comprises two parts, namely a movable mold and a fixed mold (or a male mold and a female mold), which can be combined or separated. When the blank is closed, the blank is injected into the die cavity for forming. The demoulding mechanism in the existing mould equipment has a single structure and a traditional demoulding mode, so that innovative improvement needs to be provided for the demoulding mechanism.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rotatory demoulding mechanism that torsion is big to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a rotary demoulding mechanism with large torsion comprises a female die and a male die, wherein the female die and the male die are matched with each other to form a cavity;
the threaded core is rotationally connected to the male die, the top end of the threaded core extends into the cavity, and the bottom of the threaded core with the external thread is arranged on the base with the internal thread in a threaded connection mode;
the driving assembly is used for driving the threaded core to rotate, when the threaded core rotates, the threaded core can rotate to move upwards or downwards according to the rotating direction, and when the threaded core rotates to move downwards, the top end of the threaded core is gradually separated from the cavity; and
and the ejection assembly is used for demolding the finished product in the cavity.
As a further aspect of the present invention: the driving assembly comprises a rack and a driving gear linked with the rack, the driving gear is meshed with a driven gear sleeved on the outer ring of the middle part of the threaded core, and a guide rail matched with a key groove of the outer ring of the middle part of the threaded core is arranged on the inner wall of the inner ring of the driven gear, so that the driven gear and the threaded core can rotate synchronously and can keep relative sliding in the vertical direction, and the threaded core can move in the vertical direction while rotating.
As a further aspect of the present invention: a rotating shaft is fixedly arranged on a central axis of the driving gear, and the rotating shaft is provided with another gear meshed with the rack; the driving assembly further comprises an oil cylinder used for pushing the rack to move, and when the rack moves horizontally, the driving gear can be rotated, so that the threaded core is driven to rotate.
As a further aspect of the present invention: the ejection assembly comprises a hollow ejector rod which is slidably sleeved on the outer ring of the upper part of the threaded mold core, and the top end of the hollow ejector rod extends into the mold cavity;
the bottom end of the hollow ejector rod is in supporting connection with the upper and lower ejector plate groups, the bottom surface of one side of each of the upper and lower ejector plate groups is fixedly connected with a connecting rod, an ejector rod linked with the ejector is installed at the bottom end of each connecting rod, and under the action of the ejector, the ejector rod pushes the upper and lower ejector plate groups to drive the hollow ejector rod through the connecting rod to demould a finished product.
As a further aspect of the present invention: at least four key grooves are uniformly distributed on the outer ring of the threaded core in a circumferential array.
As a further aspect of the present invention: the movement distance of the threaded core is larger than the thread pitch of the finished product.
As a further aspect of the present invention: the thread pitch of the threaded core is completely the same as that of the finished product, so that smooth demolding of the finished product is guaranteed.
Compared with the prior art, the embodiment of the utility model provides an among the big rotatory demoulding mechanism of torsion, before the branch mould, make the driving gear drive threaded core rotate by hydro-cylinder pulling rack, in view of the relation that has a plurality of keyways on the threaded core, after the sharp release off-the-shelf regulation pitch in the rotation becomes, public mould and master model part afterwards, under the effect of ejecting machine, ejecting rod passes through about the connecting rod promotes ejecting plate group drives hollow ejector pin and makes the finished product drawing of patterns.
Drawings
In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural view of a rotary demolding mechanism with a large torsion according to an embodiment of the present invention.
In the figure: the method comprises the following steps of 1-female die, 2-upper and lower ejector plate groups, 3-threaded core, 4-driving gear, 5-rack, 6-ejector rod, 7-connecting rod, 8-key groove, 9-hollow ejector rod and 10-male die.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, in an embodiment of the present invention, a rotary demolding mechanism with large torsion includes a female mold 1 and a male mold 10, wherein the female mold 1 and the male mold 10 cooperate with each other to form a cavity;
the threaded core 3 is rotationally connected to the male die 10, the top end of the threaded core 3 extends into the cavity, and the bottom of the threaded core 3 with external threads is arranged on a base with internal threads in a threaded connection mode;
the driving assembly is used for driving the threaded core 3 to rotate, when the threaded core 3 rotates, the threaded core can be rotated to move upwards or downwards according to the rotating direction, and when the threaded core 3 rotates to move downwards, the top end of the threaded core is gradually separated from the cavity; and
and the ejection assembly is used for demolding the finished product in the cavity.
Specifically, in the embodiment of the present invention, the pitch of the threaded core 3 is identical to that of the finished product.
Further, in the embodiment of the present invention, the driving assembly includes a rack 5 and a driving gear 4 linked with the rack 5, the driving gear 4 is engaged with a driven gear sleeved on the outer ring of the middle portion of the threaded core 3, and the inner ring inner wall of the driven gear is provided with a guide rail matched with the key groove 8 of the outer ring of the middle portion of the threaded core 3, so that the driven gear and the threaded core 3 can rotate synchronously and can keep relative sliding in the vertical direction, and thus, the threaded core can move in the vertical direction while rotating.
Furthermore, a rotating shaft is fixedly arranged on the central axis of the driving gear 4, and the rotating shaft is provided with another gear meshed with the rack 5; the driving assembly further comprises an oil cylinder not shown in the figure for pushing the rack 5 to move, and when the rack 5 moves horizontally, the driving gear 4 can be rotated, so that the threaded core 3 is driven to rotate.
The ejection assembly comprises a hollow ejector rod 9 which is slidably sleeved on the outer ring of the upper part of the threaded mold core 3, and the top end of the hollow ejector rod 9 extends into the mold cavity; the bottom end of the hollow ejector rod 9 is in supporting connection with the upper and lower ejector plate groups 2, the bottom surface of one side of the upper and lower ejector plate groups 2 is fixedly connected with a connecting rod 7, the bottom end of the connecting rod 7 is provided with an ejector rod 6 linked with the ejector, and under the action of the ejector, the ejector rod 6 pushes the upper and lower ejector plate groups 2 through the connecting rod 7 to drive the hollow ejector rod 9 to demould a finished product.
The utility model discloses demoulding mechanism's theory of operation is: before mold separation, the rack 5 is pulled by the oil cylinder to enable the driving gear 4 to drive the threaded mold core 3 to rotate, in view of the relationship that a plurality of key grooves 8 are formed in the threaded mold core 3, after a specified thread pitch of a finished product is pushed out linearly from rotation, the male mold 10 and the female mold 1 are separated, and under the action of an ejector, the ejector rod 6 pushes the upper ejector plate group 2 and the lower ejector plate group 2 through the connecting rod 7 to drive the hollow ejector rod 9 to enable the finished product to be demolded.
It is to be noted that the distance of travel of the threading core 3 is greater than the pitch of the thread on the finished product. The material of the key grooves 8 has certain rigidity, the torsion is large due to the fact that rotation is changed into linear motion, and preferably, at least four key grooves 8 are uniformly distributed on the outer ring of the threaded mold core 3 in a circumferential array mode. The appearance shape of the finished product is required to prevent autorotation, and a rotation stopping device is allowed to be added without the autorotation function.
In addition, the thread pitch of the threaded core 3 is completely the same as that of the finished product, so that smooth demolding of the finished product is guaranteed.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. A rotary demoulding mechanism with large torsion is characterized by comprising a female die (1) and a male die (10), wherein the female die (1) and the male die (10) are matched with each other to form a cavity;
the threaded mold core (3) is rotationally connected to the male die (10), the top end of the threaded mold core (3) extends into the cavity, and the bottom of the threaded mold core (3) with the external thread is arranged on a seat with the internal thread in a threaded connection mode;
the driving assembly is used for driving the threaded core (3) to rotate; and
the ejection assembly is used for demolding the finished product in the cavity;
the ejection assembly comprises a hollow ejector rod (9) which is slidably sleeved on the outer ring of the upper part of the threaded mold core (3), and the top end of the hollow ejector rod (9) extends into the mold cavity;
the bottom end of the hollow ejector rod (9) is in supporting connection with the upper and lower ejector plate groups (2);
the bottom surface of one side of the upper and lower ejection plate groups (2) is fixedly connected with a connecting rod (7), and the bottom end of the connecting rod (7) is provided with an ejection rod (6) which is linked with the ejection machine.
2. The torsional rotary demolding mechanism according to claim 1, wherein the driving assembly comprises a rack (5) and a driving gear (4) linked with the rack (5), the driving gear (4) is meshed with a driven gear sleeved on the outer ring of the middle part of the threaded core (3); and the inner wall of the inner ring of the driven gear is provided with a guide rail matched with a key groove (8) of the middle outer ring of the threaded mold core (3).
3. The torsional rotary demoulding mechanism according to claim 2, wherein a rotary shaft is fixedly arranged on the central axis of the driving gear (4), and another gear meshed with the rack (5) is arranged on the rotary shaft;
the driving assembly further comprises an oil cylinder for pushing the rack (5) to move.
4. The torsional rotary demolding mechanism according to claim 2 or 3, wherein at least four key slots (8) are uniformly distributed on the outer ring of the threaded core (3) in a circumferential array.
5. The torsional rotary stripper mechanism of claim 4, wherein the distance of travel of the threaded core (3) is greater than the pitch of the thread on the finished product.
6. The torsional rotary stripper unit of claim 5, wherein the thread pitch of the threaded core (3) is the same as the thread pitch of the finished product.
CN201921281257.3U 2019-08-08 2019-08-08 Rotary demolding mechanism with large torsion Active CN210679551U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921281257.3U CN210679551U (en) 2019-08-08 2019-08-08 Rotary demolding mechanism with large torsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921281257.3U CN210679551U (en) 2019-08-08 2019-08-08 Rotary demolding mechanism with large torsion

Publications (1)

Publication Number Publication Date
CN210679551U true CN210679551U (en) 2020-06-05

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113001894A (en) * 2021-02-09 2021-06-22 莱克电气股份有限公司 Injection mold and manufacturing method of rotating body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113001894A (en) * 2021-02-09 2021-06-22 莱克电气股份有限公司 Injection mold and manufacturing method of rotating body
CN113001894B (en) * 2021-02-09 2021-10-26 莱克电气股份有限公司 Injection mold and manufacturing method of rotating body

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