CN111070585A - Turnover core-pulling device and core-pulling type mold applied by same - Google Patents

Abstract

The overturning core-pulling device comprises a base, a driving device arranged on the base and a movable core movably arranged on the base; the device is characterized by further comprising an adapter arranged between a power output shaft of the driving device and the movable core, wherein the adapter is used for transmitting an X axial driving force of the power output shaft in the X axis direction to the movable core and providing support for the movable core to overturn around the Y axis by taking the XY axis coordinate as a reference system; the movable core is provided with an overturning combination part, the base is also provided with an overturning support body, and the overturning combination part of the movable core can be propped against the overturning support body; the beneficial technical effects are that: because convertible device of loosing core disposes above-mentioned structure for movable core can upwards overturn around the Y axis, forms certain angle between movable core and the X axis, thereby is convenient for spray on movable core's the surface release agent, reduces to loose core the in-process and appears the sticking phenomenon.

Description

Turnover core-pulling device and core-pulling type mold applied by same

Technical Field

The invention relates to a turnover core-pulling device and a core-pulling type mold applied to the same.

Background

In the case of a relatively complex structure of a die cast or injection molded part, a movable core is often required to be provided on the mold. A mold having a position adjustable core driving device such as that disclosed in patent 201721759907.1, including a cavity for casting a casting, a moving core slidably extending into the cavity, and a core driving device for driving the moving core to slide; the mold core driving device is characterized by further comprising a position adjusting device which is arranged on the outer side of the mold cavity and used for adjusting the height position of the mold core driving device, wherein the position adjusting device comprises a pair of cushion blocks capable of sliding transversely, namely a left cushion block and a right cushion block, the pair of cushion blocks are respectively arranged on the left side and the right side of the movable mold core, and at least two stages of positioning steps are respectively arranged on the pair of cushion blocks; the position adjusting device also comprises a support frame capable of sliding vertically, wherein the support frame is approximately in an arch bridge shape and is provided with a cross arm and a pair of connecting feet connected to the left end and the right end of the cross arm, namely a left connecting foot and a right connecting foot; a vertically extending clamping groove is formed in the tail end wall of the movable mold core, the mold core driving device is arranged on the cross arm, and an output shaft of the mold core driving device is clamped to the clamping groove of the movable mold core in a sliding mode; the left connecting foot rest of the supporting frame is arranged on one of the positioning steps of the left cushion block, and the right connecting foot rest of the supporting frame is arranged on one of the positioning steps of the right cushion block. Therefore, the height position of the core driving device can be conveniently adjusted, when the movable core has a deep cavity structure, the release agent is difficult to spray on all outer surfaces of the movable core after the demoulding process of a finished part is finished, and the core pulling process is caused to damage the finished part due to the mold sticking phenomenon.

Disclosure of Invention

In order to solve the technical problem, the invention provides a turnover type core pulling device, which comprises a base, a driving device arranged on the base and a movable core movably arranged on the base; the movable core overturning mechanism is characterized by further comprising an adapter arranged between a power output shaft of the driving device and the movable core, wherein the adapter is used for transmitting X-axis driving force of the power output shaft in the X-axis direction to the movable core and providing support for overturning the movable core around the Y axis by taking XY-axis coordinates as a reference system; the movable core is provided with an overturning combination part, the base is also provided with an overturning support body, and the overturning combination part of the movable core can be abutted against the overturning support body; when the overturning combination part of the movable core abuts against the overturning support body, the force application position of the adapter applying force on the movable core is higher than the support position of the overturning support body supporting the movable core when viewed along the Y axis direction, so that the movable core can be upwards overturned around the Y axis by utilizing the support provided by the overturning support body and under the action of the X axial driving force.

When the movable core is seen along the Y-axis direction, the force application position of the adapter applying force on the movable core is higher than the support position of the turnover support body supporting on the movable core, namely, a force arm is formed between the force application position and the support position, so that under the action of the X-axis driving force, a moment which is applied to the movable core and can drive the movable core to turn is formed.

According to the technical scheme, the invention has the beneficial technical effects that: because the turnover type core-pulling device is provided with the structure, the movable core can turn upwards around the Y axis, and a certain angle is formed between the movable core and the X axis, so that a release agent is conveniently sprayed on the outer surface of the movable core, and the phenomenon of mold sticking in the core-pulling process is reduced.

As for the adapter, one of the following configurations may be further selected:

the first structural form of the adapter piece is as follows: the adapter is T-shaped and comprises an X-direction connecting part extending along the X axis direction and a Y-direction supporting shaft extending along the Y axis direction, the X-direction connecting part is in transmission connection with a power output shaft of the driving device, and the Y-direction supporting shaft is movably connected with the movable core.

The second structural form of the adapter piece is as follows: the adapter comprises an X-direction connecting part extending along the X axis direction and a spherical head part arranged on the X-direction connecting part, the X-direction connecting part is in transmission connection with a power output shaft of the driving device, and the head part is movably connected with the movable core.

The further technical scheme can also be that an inclined working surface is arranged on the overturning combination part and can be abutted against the overturning support body. This makes it possible to increase the turning angle of the moving core by means of the inclined working surface.

In a further aspect, a guide mechanism may be disposed between the base and the moving core, and the guide mechanism may guide the moving core to move in the X axis direction under the action of the X axial driving force. In this way, the moving core can be moved linearly away from the mold cavity.

Further technical solution may also be, the guide mechanism includes a bottom guide mechanism provided between the bottom wall of the moving core and the bottom wall of the base.

Further technical solution may also be, the guide mechanism includes side guide mechanisms respectively provided between left and right side walls of the movable core and left and right side walls of the base.

The side guide mechanism may include a first guide portion and a second guide portion that are slidable relative to each other, the first guide portion and the second guide portion may be interchangeably provided on a side wall of the movable core and a side wall of the base, the first guide portion may include a closed slide and an open slide, the open slide may have a side opening, and when the turning coupling portion of the movable core abuts against the turning support, the second guide portion may move from the closed slide to the open slide, so that when the movable core is turned upward about the Y axis, the second guide portion may pass through the side opening and leave the first guide portion. In this way, the side guide mechanism can provide guidance for the moving core to move in the X-axis direction without hindering the turning of the moving core. Wherein the first guide portion and the second guide portion are provided interchangeably on the side wall of the moving core and on the side wall of the base, the above feature defining that, when the first guide portion is provided on the side wall of the base, the second guide portion is provided on the side wall of the moving core, and when the second guide portion is provided on the side wall of the base, the first guide portion is provided on the side wall of the moving core.

The further technical scheme can also be that the movable core comprises a core main body and a core connecting seat, the overturning combination part and the adaptor are respectively arranged on the core connecting seat, and the core main body or/and the core connecting seat are/is of a hollow shell structure. Thus, the core body and the core attachment seat may be made of different materials, and the amount of consumed materials may be reduced.

In addition, the invention also provides a core-pulling type mold which is characterized by comprising a manufacturing cavity and the turnover core-pulling device as claimed in any one of claims 1 to 9, wherein a movable core of the turnover core-pulling device can be inserted into the manufacturing cavity.

The invention has the characteristics and advantages, so the invention can be applied to the turnover core-pulling device and the core-pulling mould.

Drawings

Fig. 1 is a schematic perspective view of a turnover core-pulling device 100 to which the technical solution of the present invention is applied;

fig. 2 is an exploded schematic view of the convertible core-pulling device 100;

fig. 3 is a schematic perspective view of the first guide part 91;

fig. 4 is a schematic diagram of a turning dynamic structure of the turning core-pulling device 100;

fig. 5 is a schematic sectional view of the movable core 3 in an exploded state.

Detailed Description

The following describes the structure of the turnover core pulling device and the core pulling mold using the technical scheme of the invention with reference to the accompanying drawings.

As shown in the drawings, the present invention provides a core-pulling mold, which includes a manufacturing cavity (not shown) and a convertible core-pulling device 100. The movable core 3 of the convertible core-pulling device 100 can be inserted into the molding cavity. The turnover core-pulling device 100 comprises a base 1, a driving device 2 installed on the base 1 and a movable core 3 movably arranged on the base 1; the movable core overturning device is characterized by further comprising an adapter 4 arranged between a power output shaft 21 of the driving device 2 and the movable core 3, wherein the adapter 4 is used for transmitting an X-axis driving force of the power output shaft 21 in an X-axis direction to the movable core 3 and providing support for overturning the movable core 3 around a Y-axis by taking an XY-axis coordinate as a reference system; the movable core 3 is provided with turnover combining parts (6, 6 a), the base 1 is also provided with turnover supports (5, 5 a), and the turnover combining parts (6, 6 a) of the movable core 3 can be abutted against the turnover supports (5, 5 a); when the turning joint portions (6, 6 a) of the movable core 3 respectively abut against the turning support bodies (5, 5 a), when viewed along the Y axis direction, the force application position a where the adaptor 4 applies force to the movable core 3 is higher than the support position B where the turning support bodies (5, 5 a) support on the movable core 3, so that the movable core 3 can be turned upward around the Y axis by the support provided by the turning support bodies (5, 5 a) and by the drive force of the X axis.

The above technical solution is further explained with reference to the accompanying drawings. As shown in fig. 1 to 5, the base 1 includes a bottom plate 11 and a U-shaped body provided on the bottom plate, and the U-shaped body includes base side walls (12, 12 a) that are separated to the left and right and a back wall 13 connected between the base side walls (12, 12 a). The drive means 2 is mounted on the back wall 13 with a power take-off shaft 21 of the drive means 2 extending forwardly through the back wall 13. The turning supports (5, 5 a) are respectively arranged on the side walls (12, 12 a) of the base. The movable core 3 comprises a core main body 31 and a core connecting seat 32, the overturning combination parts (6, 6 a) and the adaptor 4 are respectively arranged on the core connecting seat 32, and the core main body 31 and the core connecting seat 32 are of a hollow shell structure. Thus, the core body 31 and the core attachment seat 32 can be made of different materials, and the amount of consumables can be reduced. The adaptor 4 is in a T shape and comprises an X-direction connecting part 41 extending along the X axis direction and a Y-direction supporting shaft 42 extending along the Y axis direction, the X-direction connecting part 41 is in transmission connection with the power output shaft 21 of the driving device 2, and the Y-direction supporting shaft 42 is movably connected with the movable core 3. Specifically, a first groove 321 is formed in the back wall of the core connecting seat 32, the core connecting seat further comprises press blocks (7, 7 a) which are arranged on the left and right, a second groove which can be in butt joint with the first groove 321 is formed in the press blocks (7, 7 a), the press blocks (7, 7 a) are fixed to the back wall of the core connecting seat 32 through bolts, the first groove 321 is in butt joint with the second groove, a rotating space of the Y-direction supporting shaft 42 is formed between the first groove 321 and the second groove, and the Y-direction supporting shaft 42 is rotatably arranged on the first groove 321 and the second groove. The adaptor 4 may also adopt another structural form, specifically, the adaptor 4 includes an X-direction connecting portion 41 extending along an X-axis direction and a head portion arranged on the X-direction connecting portion 41 and in a spherical shape, the X-direction connecting portion 41 is in transmission connection with the power output shaft 21 of the driving device 2, and the head portion is movably connected with the movable core 3. The turnover connecting parts (6, 6 a) and the movable mold core 3 are of a split structure, inclined working faces (61, 61 a) are arranged on the turnover connecting parts (6, 6 a), and the inclined working faces (61, 61 a) can respectively abut against the turnover support bodies (5, 5 a). This increases the turning angle of the moving core 3 by the inclined working faces (61, 61 a).

A guide mechanism capable of guiding the moving core 3 to move in the X axis direction by the X axial driving force is provided between the base 1 and the moving core 3. The guide means comprise bottom guide means 8 arranged between the bottom wall of the moving core 3 and the bottom wall of the base 1, i.e. the bottom plate 11. The bottom guide mechanism 8 comprises a mounting bottom plate 81 and a sliding block 82 arranged on the mounting bottom plate 81 in a sliding manner, the mounting bottom plate 81 is arranged on the bottom plate 11, the sliding block 82 is arranged on the core connecting seat 32, and the movable core 3 is arranged on the mounting bottom plate 81 in a sliding manner through the sliding block 82. The guide mechanism further includes side guide mechanisms (9, 9 a) respectively provided between the left and right side walls of the moving core 3 and the left and right side walls of the base 1. The side guide means (9, 9 a) have a similar structure, and the side guide means 9 will be described as an example. The side guide mechanism 9 includes a first guide portion 91 and a second guide portion 92 which are slidable relative to each other, the first guide portion 91 and the second guide portion 92 are provided on the side wall of the movable core 3 and the side wall 12 of the base 1 in an interchangeable manner, the first guide portion 91 includes a closed slide rail 911 and an open slide rail 912, and when the turning coupling portions (6, 6 a) of the movable core 3 are respectively abutted against the turning supports (5, 5 a), the second guide portion 92 is movable from the closed slide rail 911 to the open slide rail 912, so that when the movable core is turned upward about the Y axis, the first guide portion 91 and the second guide portion 92 can be separated from each other. Specifically, in the present embodiment, the first guide portion 91 is provided on the base side wall 12, and the second guide portion 92 is provided on the side wall of the core attachment seat 32. First guide part 91 includes closed slide 911 and open slide 912, wherein sees from the cross section, closed slide 911 is the U-shaped, including preceding horizontal gib (9111, 9113) and the connection that divide from top to bottom put preceding vertical gib 9112 between preceding horizontal gib (9111, 9113), and open slide 912 is L shape, including horizontal gib 9121 in back and the vertical gib 9122 in back, preceding horizontal gib 9111 with horizontal gib 9121 in back docks, preceding vertical gib 9112 with the vertical gib 9122 in back docks, open slide 912 has the uncovered 9123 of lateral part up. The second guide portion 92 is slidable from the closed slide 911 into the open slide 912 so that the second guide portion 92 can exit the first guide portion 91 through the side open opening 9123 when the movable core 3 is flipped up about the Y axis. In this way, the side guide mechanism (9, 9 a) can provide a guide for the moving core 3 to move in the X axis direction without hindering the turning of the moving core 3. Of course, in other embodiments, the second guide portion may be disposed on the base side wall 12, and the first guide portion may be disposed on the side wall of the core connecting seat 32, in which case the open slide of the first guide portion has a downward side opening.

The operation of the convertible core-pulling device 100 will be further described with reference to fig. 4. During the process of manufacturing the product, the power output shaft 21 of the driving device 2 moves forwards along the X-axis to push the movable core 3 to be inserted into the molding cavity, when the product in the molding cavity is solidified and molded, the power output shaft 21 of the driving device 2 moves backwards along the X-axis to draw the movable core 3 out of the molding cavity, and make the inclined working surfaces (61, 61 a) on the turnover combining parts (6, 6 a) respectively abut against the turnover supports (5, 5 a), and simultaneously the second guide part 92 moves backwards along the X-axis following the movable core 3 and moves from the closed slide 911 to the open slide 912; the power take-off shaft 21 of the drive means 2 continues to move backwards along the X axis, driving the moving core 3 to turn upwards around the Y axis and also around the support position B, the second guide 92 leaving the first guide 91 through the lateral opening 9123 following the turning of the moving core 3. Therefore, a certain angle is formed between the movable core 3 and the X axis, so that a release agent is conveniently sprayed on the outer surface of the movable core 3, and the phenomenon of mold sticking in the core pulling process is reduced.

Claims (10)

1. The turnover core-pulling device comprises a base, a driving device arranged on the base and a movable core movably arranged on the base; the movable core overturning mechanism is characterized by further comprising an adapter arranged between a power output shaft of the driving device and the movable core, wherein the adapter is used for transmitting X-axis driving force of the power output shaft in the X-axis direction to the movable core and providing support for overturning the movable core around the Y axis by taking XY-axis coordinates as a reference system; the movable core is provided with an overturning combination part, the base is also provided with an overturning support body, and the overturning combination part of the movable core can be abutted against the overturning support body; when the overturning combination part of the movable core abuts against the overturning support body, the force application position of the adapter applying force on the movable core is higher than the support position of the overturning support body supporting the movable core when viewed along the Y axis direction, so that the movable core can be upwards overturned around the Y axis by utilizing the support provided by the overturning support body and under the action of the X axial driving force.

2. The turnover core-pulling device of claim 1, wherein the adaptor is T-shaped and comprises an X-direction connecting portion extending along an X-axis direction and a Y-direction supporting shaft extending along a Y-axis direction, the X-direction connecting portion is in transmission connection with a power output shaft of the driving device, and the Y-direction supporting shaft is movably connected with the movable core.

3. The turnover core-pulling device of claim 1, wherein the adaptor comprises an X-direction connecting portion extending along an X-axis direction and a spherical head portion arranged on the X-direction connecting portion, the X-direction connecting portion is in transmission connection with a power output shaft of the driving device, and the head portion is movably connected with the movable core.

4. The turnover core-pulling device according to claim 1, wherein an inclined working surface is disposed on the turnover combining portion, and the inclined working surface can abut against the turnover support.

5. The turnover core-pulling device according to any one of claims 1 to 4, wherein a guide mechanism is disposed between the base and the movable core, and the guide mechanism can guide the movable core to move in the X-axis direction under the action of the X-axis driving force.

6. The convertible core-pulling device according to claim 5, wherein the guide mechanism includes a bottom guide mechanism disposed between the bottom wall of the movable core and the bottom wall of the base.

7. The convertible core-pulling device according to claim 5, wherein the guide mechanism includes side guide mechanisms respectively provided between left and right side walls of the movable core and left and right side walls of the base.

8. The convertible core-pulling device according to claim 7, wherein the side guide mechanism includes a first guide portion and a second guide portion that are slidable relative to each other, the first guide portion and the second guide portion are interchangeably provided on a side wall of the movable core and a side wall of the base, the first guide portion includes a closed slide and an open slide, the open slide has a side opening, and when the turning coupling portion of the movable core abuts against the turning support, the second guide portion moves from the closed slide to the open slide, so that when the movable core is turned upward about the Y axis, the second guide portion can leave the first guide portion through the side opening.

9. The turnover core-pulling device according to any one of claims 1 to 4, wherein the movable core comprises a core main body and a core connecting seat, the turnover combining part and the adaptor are respectively arranged on the core connecting seat, and the core main body or/and the core connecting seat are/is of a hollow shell structure.

10. The core-pulling type mold is characterized by comprising a manufacturing cavity and the turnover core-pulling device according to any one of claims 1 to 9, wherein a movable core of the turnover core-pulling device can be inserted into the manufacturing cavity.

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