CN112497681A

CN112497681A - Round shaft moving rotation-preventing mechanism

Info

Publication number: CN112497681A
Application number: CN202011384821.1A
Authority: CN
Inventors: 王慧; 蔡奇陵
Original assignee: CYG Semiconductor Equipment Zhuhai Co Ltd
Current assignee: CYG Semiconductor Equipment Zhuhai Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-16

Abstract

The invention discloses a circular shaft movement anti-rotation mechanism, which comprises a base, a movement shaft, an elastic part and an anti-rotation structure, wherein the movement shaft, the elastic part and the anti-rotation structure are arranged on the base, two ends of the elastic part are respectively abutted against the base and the movement shaft to enable the movement shaft to move in a reciprocating manner relative to the base, the anti-rotation structure comprises an anti-rotation shaft and a limiting block, the anti-rotation shaft and the limiting block are respectively fixed on the base and the movement shaft, the limiting block is provided with a limiting groove, the anti-rotation shaft is positioned in the limiting groove to prevent the movement shaft from rotating relative to the base, through the design, when the movement shaft moves in a reciprocating manner relative to the base, the limiting block moves up and down along the anti-rotation shaft without influencing the movement of the movement shaft, and when the movement shaft rotates, the.

Description

Round shaft moving rotation-preventing mechanism

Technical Field

The invention relates to an anti-rotation mechanism, in particular to a circular shaft movement anti-rotation mechanism.

Background

In the mold equipment, after a product is molded, a thimble is needed to eject the product out of the mold. After the product is ejected, the ejector pin needs to leave the cavity to reset to wait for next ejection. Therefore, in the injection molding process, the ejector pin needs to move up and down relative to the base continuously.

In practical use, the ejector pin and the base rotate relatively, so that the ejector pin is abraded and the movement precision is influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a circular shaft movement anti-rotation mechanism.

One of the purposes of the invention is realized by adopting the following technical scheme:

the utility model provides a round axle removes rotation-proof mechanism, include the base and install in removal axle, elastic component and the rotation-proof structure of base, the elastic component both ends respectively with the base and remove the axle conflict and make it is relative to remove the axle base reciprocating motion, rotation-proof structure is including preventing pivot and stopper, prevent the pivot and reach the stopper is fixed in respectively the base and remove the axle, the stopper is equipped with the spacing groove, prevent that the pivot is located in the spacing groove, prevent that it is relative to remove the axle the base rotates.

Further, the rotation preventing shaft is fixed to the base, and the limiting block is fixed to the moving shaft.

Further, the rotation preventing shaft is fixed to the moving shaft, and the limiting block is fixed to the base.

Further, the circular shaft movement anti-rotation mechanism further comprises a bearing, and the bearing is installed between the movement shaft and the base.

Further, the bearing is a linear bearing.

Furthermore, the circular shaft movement anti-rotation mechanism further comprises a driver, the driver is slidably mounted on the base, and the driver is abutted against the moving shaft to drive the moving shaft to move up and down.

Further, the circular shaft movement anti-rotation mechanism further comprises a roller, the roller is rotatably mounted on the movement shaft, and the roller is in rolling contact with the driver.

Further, the driver comprises a transmission block and a transmission cam, and the transmission cam is rotatably mounted on the transmission block.

Furthermore, the circular shaft movement anti-rotation mechanism further comprises a sliding block, the transmission block is fixed on the sliding block, the base is provided with a sliding rail, and the sliding block and the sliding rail are matched to enable the driver to be installed on the base in a sliding mode.

Further, the elastic member is a spring.

Compared with the prior art, the anti-rotation structure of the circular shaft moving anti-rotation mechanism comprises the anti-rotation shaft and the limiting block, the anti-rotation shaft and the limiting block are respectively fixed on the base and the moving shaft, the limiting block is provided with the limiting groove, the anti-rotation shaft is positioned in the limiting groove, and the moving shaft is prevented from rotating relative to the base.

Drawings

FIG. 1 is a perspective view of the circular shaft movement anti-rotation mechanism of the present invention;

FIG. 2 is another perspective view of the circular shaft movement anti-rotation mechanism of FIG. 1;

fig. 3 is a partial structural view of the circular shaft movement rotation preventing mechanism of fig. 1.

In the figure: 10. a base; 11. a first plate body; 12. a second plate body; 13. a slide rail; 20. a driver; 21. a transmission block; 22. a drive cam; 30. a slider; 40. a movable shaft; 50. a bearing; 60. an elastic member; 70. an anti-rotation structure; 71. a rotation prevention shaft; 72. a limiting block; 720. a limiting groove; 80. and a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 3 illustrate a circular shaft movement anti-rotation mechanism according to the present invention, which includes a base 10, a driver 20, a slider 30, a moving shaft 40, a bearing 50, an elastic member 60, an anti-rotation structure 70, and a roller 80.

The base 10 includes a first board 11, a second board 12, and a slide rail 13. The second plate 12 extends from the end of the first plate 11 and is perpendicular to the first plate 11. The slide rail 13 is disposed on the first board 11. The sliding rail 13 extends perpendicularly to the second plate 12.

The driver 20 includes a driving block 21 and a driving cam 22. The driving cam 22 is rotatably mounted at the bottom of the driving block 21.

The slider 30 is engaged with the slide rail 13 of the base 10, so that the slider 30 is slidably mounted on the base 10. The actuator block 21 is fixed to the slider 30, and slidably mounts the actuator 20 to the base 10.

The moving shaft 40 is mounted to the second plate 12 of the base 10. The bearing 50 is installed between the moving shaft 40 and the second plate 12, and reduces friction between the moving shaft 40 and the second plate 12. The bearing 50 is a linear bearing.

The elastic member 60 is a spring. The elastic member 60 is sleeved on the moving shaft 40, and two ends of the elastic member respectively abut against the moving shaft 40 and the second plate 12 of the base 10, so that the roller 80 on the moving shaft 40 keeps close contact with the driver 20.

The rotation preventing structure 70 includes a rotation preventing shaft 71 and a stopper 72. The rotation preventing shaft 71 is fixed to the second plate 12, and the stopper 72 is fixed to the moving shaft 40. The limiting block 72 is provided with a limiting groove 720, and the rotation-preventing shaft 71 is located in the limiting groove 720. In other embodiments, the rotation-preventing shaft 71 is fixed to the moving shaft 40, the limiting block 72 is fixed to the second plate 12, and the rotation-preventing shaft 71 is located in the limiting groove 720, so as to achieve the rotation-preventing effect.

The roller 80 is rotatably installed at the end of the moving shaft 40, and the roller 80 is abutted against the driving block 21 of the driver 20, so that the moving shaft 40 is in rolling contact with the driver 20. The elastic member 60 keeps the roller 80 of the moving shaft 40 in close contact with the driver 20.

When the circular shaft movement rotation preventing mechanism is used, the driver 20 slides relative to the base 10, and the driving block 21 abuts against the roller 80, so that the moving shaft 40 moves up and down. During the up and down movement of the moving shaft 40, the stopper 72 moves along the rotation preventing shaft 71. When the moving shaft 40 rotates, the edge of the limiting groove 720 is abutted against the rotation-preventing shaft 71, and the limiting block 72 cannot rotate, so that the moving shaft 40 does not rotate, and the rotation-preventing effect is achieved.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.

Claims

1. The utility model provides a round axle removes prevents rotation mechanism, includes the base and install in the removal axle of base, its characterized in that: the round axle removes prevents that rotation mechanism still includes the elastic component and prevents the rotating-structure, the elastic component both ends respectively with the base with it contradicts to make to remove the axle relatively base reciprocating motion, prevent the rotating-structure including preventing pivot and stopper, prevent the pivot and the stopper is fixed in respectively the base with remove the axle, the stopper is equipped with the spacing groove, prevent that the pivot is located in the spacing groove, prevent to remove the axle relatively the base rotates.

2. The circular shaft movement anti-rotation mechanism of claim 1, wherein: the rotation-proof shaft is fixed on the base, and the limiting block is fixed on the moving shaft.

3. The circular shaft movement anti-rotation mechanism of claim 1, wherein: the rotation-preventing shaft is fixed on the moving shaft, and the limiting block is fixed on the base.

4. The circular shaft movement anti-rotation mechanism of claim 1, wherein: the circular shaft moving anti-rotation mechanism further comprises a bearing, and the bearing is installed between the moving shaft and the base.

5. The circular shaft movement anti-rotation mechanism of claim 4, wherein: the bearing is a linear bearing.

6. The circular shaft movement anti-rotation mechanism of claim 1, wherein: the circular shaft movement anti-rotation mechanism further comprises a driver, the driver is slidably mounted on the base, and the driver is abutted against the moving shaft to drive the moving shaft to move up and down.

7. The circular shaft movement anti-rotation mechanism of claim 6, wherein: the circular shaft movement anti-rotation mechanism further comprises a roller, the roller is rotatably mounted on the movement shaft, and the roller is in rolling contact with the driver.

8. The circular shaft movement anti-rotation mechanism of claim 6, wherein: the driver comprises a driving block and a driving cam, and the driving cam is rotatably arranged on the driving block.

9. The circular shaft movement anti-rotation mechanism of claim 8, wherein: the circular shaft moving anti-rotation mechanism further comprises a sliding block, the transmission block is fixed on the sliding block, the base is provided with a sliding rail, and the sliding block and the sliding rail are matched to enable the driver to be installed on the base in a sliding mode.

10. The circular shaft movement anti-rotation mechanism of claim 1, wherein: the elastic piece is a spring.