CN216373216U - Side core-pulling device - Google Patents
Side core-pulling device Download PDFInfo
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- CN216373216U CN216373216U CN202121771323.2U CN202121771323U CN216373216U CN 216373216 U CN216373216 U CN 216373216U CN 202121771323 U CN202121771323 U CN 202121771323U CN 216373216 U CN216373216 U CN 216373216U
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- driving cylinder
- pulling device
- core
- side core
- block
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Abstract
The utility model discloses a side core-pulling device, which comprises a template, a sliding block, a core-pulling block, a linear sliding rail and a driving part, wherein the sliding block is arranged on the template; the core-pulling block is fixedly connected with the sliding block and is driven by the driving part to move linearly between a forming position and an avoiding position along the linear sliding rail; the linear slide rail is fixed on the template; the driving part comprises a driving cylinder barrel and an output shaft, and the output shaft penetrates through the driving cylinder barrel and can move in a telescopic mode along the axial direction of the driving cylinder barrel; the front end of the output shaft is rotatably connected with the sliding block through a connecting shaft, a positioning seat which is relatively fixed with the template is arranged outside the template, and the positioning seat is connected with the driving cylinder barrel through a movable limiting structure, so that the driving cylinder barrel can freely rotate around the connecting shaft within a certain angle when the core pulling block is positioned at a forming position. The side core-pulling device is reasonable in structure, and the movable installation of the driving part on the side core-pulling device replaces the fixed installation in the prior art, so that the interference influence caused by the driving cylinder barrel does not need to be considered too much when the side core-pulling device is installed and used.
Description
Technical Field
The utility model relates to a side core-pulling device, and belongs to the technical field of structural design of injection molds.
Background
The plastic part is produced by injection molding on an injection molding machine, and the injection mold serving as a core part plays a crucial role on the injection molding machine. The injection mold generally comprises a movable mold plate and a fixed mold plate, a cavity matched with a plastic part is formed between the movable mold plate and the fixed mold plate, and a side core pulling device is required to be arranged on the movable mold plate or the fixed mold plate under the condition that the plastic part has holes or is convex and concave in the direction different from the demolding direction.
The existing side core-pulling device comprises a template, a sliding block, a core-pulling block, a linear sliding rail and a driving part; the core pulling block is fixedly connected with the sliding block and can move between a forming position and an avoiding position along the linear sliding rail, the core pulling block is positioned at the forming position to participate in forming of a plastic part, the core pulling block is positioned at the avoiding position to avoid blocking demolding of the plastic part, the linear sliding rail is fixed on the template, the driving part generally adopts an oil cylinder or an air cylinder, a driving cylinder barrel of the oil cylinder or the air cylinder is fixedly arranged at the outer side part of the template, an output shaft of the oil cylinder or the air cylinder is connected with the sliding block, and the sliding block and the core pulling block are driven to move along the linear sliding rail by controlling the telescopic movement of the output shaft. The problem that above-mentioned current side device of loosing core exists in-service use is, when the stroke of loosing core and the angle of loosing core are great, the length of drive part also can be corresponding great with the inclination when the installation is fixed, and the drive cylinder section of thick bamboo then can occupy great space on injection mold's the mould direction that opens and shuts, when adorning this injection mold on the injection molding machine and using, probably because take place to contradict between drive cylinder section of thick bamboo and the external object (like the template fixing base) and interfere and the difficult mould that closes mould even can't close the mould, consequently current side device structure of loosing core still exists the position that can improve.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention aims to provide a side core pulling device with an optimized and reasonable structure, in which the driving component is movably mounted instead of the fixed mounting in the prior art, so that the interference influence caused by the driving cylinder barrel does not need to be considered too much during mounting and use.
The technical scheme for realizing the purpose of the utility model is as follows:
a side core-pulling device comprises a template, a sliding block, a core-pulling block, a linear slide rail and a driving part;
the core-pulling block is fixedly connected with the sliding block and is driven by the driving part to move linearly between a forming position and an avoiding position along the linear sliding rail;
the linear slide rail is fixed on the template, and at least one of the core-pulling block and the slide block is connected with the linear slide rail in a sliding fit manner;
the driving part comprises a driving cylinder and an output shaft, and the output shaft penetrates through the driving cylinder and can axially extend and retract along the driving cylinder;
the front end of the output shaft is rotatably connected with the sliding block through a connecting shaft, a positioning seat fixed relative to the sliding block is arranged outside the template, and the positioning seat is connected with the driving cylinder barrel through a movable limiting structure, so that the driving cylinder barrel can rotate around the connecting shaft within a certain angle when the core-pulling block is positioned at the forming position.
In the above technical scheme, the movable limiting structure comprises an arc-shaped chute arranged on the positioning seat and a limiting piece arranged on the driving cylinder, the limiting piece is in sliding fit with the arc-shaped chute, and when the core pulling block is located at the forming position, the circle center of the arc where the arc-shaped chute is located on the axis of the connecting shaft.
In the above technical scheme, when the limiting piece moves to one end in the arc-shaped sliding groove, the axial direction of the driving cylinder barrel is parallel to the arrangement direction of the linear sliding rail.
In the above technical scheme, the limiting piece is a bearing or a roller which is rotatably mounted on the driving cylinder barrel.
In the technical scheme, the central angle corresponding to the arc-shaped sliding groove is not more than 45 degrees.
In the above technical scheme, the driving part is an oil cylinder or an air cylinder.
In the technical scheme, the driving cylinder is provided with the contact piece.
In the above technical scheme, the contact piece is a bearing or a roller which is rotatably installed on the driving cylinder.
In the above technical scheme, the template is a movable template.
In the above technical scheme, the template is a fixed template.
The utility model has the positive effects that: in the side core-pulling device, the front end of an output shaft on the driving part is rotatably connected with the sliding block through the connecting shaft, the outside of the template is provided with the positioning seat which is relatively fixed with the template, the positioning seat is connected with the driving cylinder barrel through the movable limiting structure, so that the driving cylinder barrel can rotate around the connecting shaft within a certain angle when the core-pulling block is positioned at the forming position, the driving part has a certain moving range on the template, and can avoid through deflection when the driving part interferes with an external object during installation and use, so that the interference influence of the driving part is not required to be considered too much during installation and use, the structure is reasonable, and the side core-pulling device has good practicability.
Drawings
FIG. 1 is a perspective view of a side core pulling device according to the present invention;
FIG. 2 is a block diagram of the side core pulling device of FIG. 1 with the mold plate removed;
FIG. 3 is a cross-sectional view of the assembly shown in FIG. 2;
FIG. 4 is a perspective view of a positioning plate of the present invention;
fig. 5 is a perspective view of a driving part in the present invention.
The reference symbols shown in the figures are: the device comprises a template 1, a slide block 2, a core-pulling block 3, a linear slide rail 4, a driving part 5, a driving cylinder 51, a contact 510, an output shaft 52, a connecting shaft 520, a movable limiting structure 6, a positioning seat 61, an arc-shaped chute 62 and a limiting part 63.
Detailed Description
The specific structure of the side core-pulling device in the utility model is described below with reference to the attached drawings of the specification:
a side core-pulling device is shown in figures 1 to 5 and comprises a template 1, a slide block 2, a core-pulling block 3, a linear slide rail 4 and a driving part 5; the core-pulling block 3 is fixedly connected with the sliding block 2 and is driven by the driving part 5 to move linearly between a forming position and an avoiding position along the linear sliding rail 4; the linear slide rail 4 is fixed on the template 1, and at least one of the core-pulling block 3 and the slide block 2 is connected with the linear slide rail 4 in a sliding fit manner; the driving part 5 comprises a driving cylinder 51 and an output shaft 52, and the output shaft 52 is arranged in the driving cylinder 51 in a penetrating way and can move in an axial direction along the driving cylinder 51 in a telescopic way; the front end of the output shaft 52 is rotatably connected with the slide block 2 through a connecting shaft 520, a positioning seat 61 fixed relative to the template 1 is arranged outside the template 1, and the positioning seat 61 is connected with the driving cylinder 51 through a movable limiting structure 6, so that the driving cylinder 51 can rotate around the connecting shaft 520 in a certain angle when the core-pulling block 3 is in the molding position. By adopting the structure in the embodiment, the driving part 5 has a certain moving range on the template 1, and can avoid through deflection when the driving part 5 interferes with an external object during installation and use, so that interference influence of the driving part is not required to be considered too much during installation and use, the structure is reasonable, and the practicability is good. More specifically, when an injection mold with the side core-pulling device is installed on an injection molding machine, the core-pulling block is driven by a driving part to move to a forming position, then mold closing is carried out, a movable mold plate and a fixed mold plate are closed, when pressure from an external object acts on a driving cylinder barrel in the mold closing process, the driving cylinder barrel is pushed to rotate to achieve avoidance, after injection molding is completed, the movable mold plate and the fixed mold plate are separated firstly, and then the driving part drives the core-pulling block to move to the avoidance position. In this embodiment, an oil cylinder or an air cylinder may be used as the driving member.
As a further solution of this embodiment, referring to fig. 3 to 5, the movable limiting structure 6 includes an arc-shaped sliding slot 62 disposed on the positioning seat 61 and a limiting member 63 mounted on the driving cylinder 51, the positioning seat 61 may be fixed at an outer end of a linear sliding rail or fixed at a side surface of the formwork 1, the limiting member 63 is in sliding fit with the arc-shaped sliding slot 62, and when the core block 3 is at the forming position, a circle center of an arc where the arc-shaped sliding slot 62 is located on an axis of the connecting shaft 520; in the side core pulling device in the embodiment, the rotation of the driving cylinder 51 is realized by the movable limiting structure 6, the limiting piece 63 is limited to rotate around the axis of the connecting shaft 520 by the arc-shaped sliding chute 62 on the positioning seat 61, and when the limiting piece 63 moves to two ends of the arc-shaped sliding chute 62, the limiting piece reaches a movable limiting position so as to limit the rotatable angle of the driving cylinder; when the core back block 3 is driven to move to the molding position, the driving cylinder 51 can freely rotate to avoid an external object.
As a further solution of this embodiment, when the limiting member 63 moves to one end of the arc-shaped sliding groove 62, the axial direction of the driving cylinder 51 is parallel to the installation direction of the linear sliding rail 4, and in this state, the power loss output from the driving member 5 to the outside is the smallest, and the power value is the largest, so that the slider 2 and the core back block 3 can be driven to move more stably and effectively.
Preferably, the limiting member 63 is a bearing or a roller rotatably mounted on the driving cylinder 51, and the bearing or the roller has a small friction resistance and moves smoothly as the limiting member 63 moves in the arc-shaped sliding slot, so that the driving member 5 can rotate more flexibly.
As a further embodiment of this embodiment, the corresponding central angle of the arc-shaped sliding chute 62 is not greater than 45 degrees, that is, the rotatable angle of the driving cylinder 51 is not greater than 45 degrees under the condition that the arc-shaped sliding chute 62 is matched with the limiting member 63, the smaller the rotatable angle of the driving cylinder 51 is, the better the rotatable angle is, the maximum rotatable angle is not greater than 45 degrees under the condition that the condition allows, and the larger the rotatable angle can affect the effectiveness of the driving component in driving the slider and the core back block.
As a further embodiment of this embodiment, the driving cylinder 51 is provided with a contact element 510, and the contact element 510 is set to enable the driving cylinder 51 to collide with an external object through the contact element 510 when encountering collision interference, so as to reduce damage caused by direct collision of the driving cylinder 51 with the external object; preferably, the contact element 510 is a bearing or a roller rotatably mounted on the driving cylinder 51.
In this embodiment, the template 1 is a moving template, and in practical operation, the template 1 may also be a fixed template.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the utility model are deemed to be covered by the present invention.
Claims (10)
1. A side core-pulling device comprises a template (1), a sliding block (2), a core-pulling block (3), a linear sliding rail (4) and a driving part (5);
the core-pulling block (3) is fixedly connected with the sliding block (2) and is driven by the driving part (5) to move linearly between a forming position and an avoiding position along the linear sliding rail (4);
the linear sliding rail (4) is fixed on the template (1), and at least one of the core-pulling block (3) and the sliding block (2) is connected with the linear sliding rail (4) in a sliding fit manner;
the driving part (5) comprises a driving cylinder (51) and an output shaft (52), and the output shaft (52) penetrates through the driving cylinder (51) and can move in a telescopic mode along the axial direction of the driving cylinder (51);
the die plate is characterized in that the front end of the output shaft (52) is rotatably connected with the sliding block (2) through a connecting shaft (520), a positioning seat (61) fixed relative to the die plate (1) is arranged outside the die plate (1), and the positioning seat (61) is connected with the driving cylinder barrel (51) through a movable limiting structure (6) so that the driving cylinder barrel (51) can rotate around the connecting shaft (520) within a certain angle when the core-pulling block (3) is located at the forming position.
2. The side core pulling device according to claim 1, wherein the movable limiting structure (6) comprises an arc-shaped sliding groove (62) arranged on the positioning seat (61) and a limiting member (63) arranged on the driving cylinder (51), the limiting member (63) is in sliding fit with the arc-shaped sliding groove (62), and when the core pulling block (3) is in the molding position, the center of an arc where the arc-shaped sliding groove (62) is located on the axis of the connecting shaft (520).
3. The side core pulling device according to claim 2, wherein when the limiting piece (63) moves to one end in the arc-shaped sliding chute (62), the axial direction of the driving cylinder (51) is parallel to the arrangement direction of the linear sliding rail (4).
4. Side pulling device according to claim 2, wherein the limiting member (63) is a bearing or a roller rotatably mounted on the driving cylinder (51).
5. The side core pulling device according to claim 2, wherein the arc-shaped sliding chute (62) corresponds to a central angle not greater than 45 degrees.
6. The side core pulling device according to any one of claims 1 to 5, wherein the driving component is an oil cylinder or an air cylinder.
7. The side core pulling device according to claim 1, wherein the driving cylinder (51) is provided with a contact piece (510).
8. The side core pulling device according to claim 7, wherein the abutting piece (510) is a bearing or a roller rotatably mounted on the driving cylinder (51).
9. The side core pulling device according to claim 1, wherein the mold plate (1) is a moving mold plate.
10. The side core pulling device according to claim 1, wherein the mold plate (1) is a stationary mold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121771323.2U CN216373216U (en) | 2021-07-30 | 2021-07-30 | Side core-pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121771323.2U CN216373216U (en) | 2021-07-30 | 2021-07-30 | Side core-pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216373216U true CN216373216U (en) | 2022-04-26 |
Family
ID=81238929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121771323.2U Active CN216373216U (en) | 2021-07-30 | 2021-07-30 | Side core-pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216373216U (en) |
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2021
- 2021-07-30 CN CN202121771323.2U patent/CN216373216U/en active Active
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