Linear rail with dust removal device

TWI937590BActive Publication Date: 2026-09-01PRECISION MOTION INDS INC
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Patent Information

Application Number
TW113140741
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2026-09-01
Estimated Expiration
2044-10-24

AI Technical Summary

Technical Problem

Existing linear guide rails face issues with dust accumulation affecting movement accuracy and sealing effectiveness due to dust entering the scraper element, which conventional designs fail to adequately address.

Method used

A linear guide rail equipped with a dust removal device featuring a scraper blade and an oscillating element, optionally with a shock-absorbing plate, to generate vibrations for timely dust removal and maintain precision.

Benefits of technology

The solution effectively removes accumulated dust, ensuring smooth operation and precision by using an oscillating element to shake off dust, while a shock-absorbing plate mitigates vibration impact on transmission accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a linear guide rail with a dust removal device, comprising a guide rail, a slider, an end cap, and the dust removal device. The slider is movably mounted on the guide rail. The end cap is attached to one end face of the slider. The dust removal device includes a scraper blade attached to one side of the slider and an oscillating element disposed within the scraper blade; thereby achieving a dust removal effect on the linear guide rail, and thus maintaining the normal operation of the linear guide rail.
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Description

Technical Field

[0001] This case relates to linear guideways, particularly a type of linear guideway with a dustproof structure. Prior Technology

[0002] Linear guide rail devices primarily involve mounting a slider structure on a track for repetitive linear motion. The slider structure typically includes a U-shaped slider, end caps, and multiple ball bearings within the slider. These ball bearings reduce friction between the slider and the track during relative movement, resulting in smoother slider movement.

[0003] Furthermore, dust and other foreign matter may adhere to the surface of the slide rail. To ensure smooth sliding of the slider, a scraper structure is often provided on the side of the slider to remove dust and other foreign matter from the slide rail surface. However, some dust still falls into and accumulates inside the scraper element, thus affecting the movement accuracy of the linear slide rail device. In addition, the presence of dust can also affect the sealing effect of the dust cover or sealing material. Therefore, how to incorporate a dust removal structure into the linear slide rail is the motivation for this applicant's research.

[0004] In view of this, the applicant has devoted himself to studying the aforementioned prior art and applying theoretical principles to try his best to solve the above-mentioned problems, which has become the target of the applicant's improvement. Summary of the Invention

[0005] One of the objectives of this invention is to provide a linear guide rail with a dust removal device, thereby providing a dust removal function for the linear guide rail and maintaining its normal operation.

[0006] To achieve the above objectives, this invention relates to a linear guide rail with a dust removal device, comprising a guide rail, a slider, an end cap, and a dust removal device. The slider is movably mounted on the guide rail. The end cap is attached to one end face of the slider. The dust removal device includes a scraper blade attached to one side of the slider and an oscillating element disposed within the scraper blade.

[0007] In one embodiment of this invention, the linear guide rail further includes a shock-absorbing sheet disposed between the end cap and the scraper.

[0008] In one embodiment of this invention, the linear guide rail further includes a positioning piece, which is attached to one side of the scraper blade, and an oscillating element is sandwiched between the scraper blade and the positioning piece.

[0009] In one embodiment of this invention, the scraper blade has a groove on the side facing the positioning plate, the positioning plate has a hollow portion, and the oscillating element is disposed in the installation space formed by the groove and the hollow portion.

[0010] In one embodiment of this invention, the scraper blade has a positioning groove on the side facing the positioning plate, and the positioning plate has a positioning post on the side facing the scraper blade. The positioning plate is inserted into the positioning groove through the positioning post and is attached to one side of the scraper blade.

[0011] In one embodiment of this invention, the scraper blade is configured as a scraper section at the part that contacts the slide rail.

[0012] In one embodiment of this case, the number of end caps and dust removal devices is multiple, and the two sides of the slider are respectively connected to end caps and dust removal devices.

[0013] In one embodiment of this invention, the number of oscillating elements is multiple, and the multiple oscillating elements are spaced apart on the scraper blade.

[0014] In one embodiment of this invention, the oscillating element is an oscillator.

[0015] In one embodiment of this invention, the linear guide rail further includes a control element electrically connected to an oscillating element, the oscillating element being controlled by the control element to generate vibration.

[0016] Compared to conventional methods, the linear guide rail of this invention is equipped with a dust removal device. This dust removal device includes a scraper blade attached to one side of the slider and an oscillating element disposed on the scraper blade. Furthermore, a shock-absorbing plate can be disposed between the slider and the scraper blade to absorb vibrations transmitted to the slider and the guide rail, preventing vibrations from affecting the precision of the linear guide rail's transmission. Accordingly, the oscillating element can generate oscillations during operation to timely remove dust accumulated between the guide rail and the slider, thereby achieving the effect of dust removal from the linear guide rail and maintaining its normal operation. Simple Explanation of the Diagram

[0017] Figure 1 is a three-dimensional view of the linear guide rail with dust removal device in this case.

[0018] Figure 2 is a three-dimensional view of the combined appearance of the slider and dust removal device in this case.

[0019] Figure 3 is a three-dimensional exploded view of the slider and dust removal device in this case.

[0020] Figure 4 is a schematic diagram of the combination of the oscillating element in this case.

[0021] Figure 5 is a schematic diagram of the combination of linear guide rails with dust removal device in this case.

[0022] Figure 6 is a partial enlarged view of the linear guide rail with dust removal device in this case.

[0023] Figure 7 is a schematic diagram of the application of the linear guide rail with dust removal device in this case. Implementation

[0024] The detailed description and technical content of this case are illustrated below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit this case.

[0025] Please refer to Figure 1, which is a perspective view of the linear guide rail with a dust removal device according to this invention. The linear guide rail 1 with a dust removal device includes a guide rail 10, a slider 20, an end cap 30, and a dust removal device 40. The slider 20 is mounted on the guide rail 10. The end cap 30 is attached to one end face of the slider 20. The dust removal device 40 is attached to one side of the slider 20. The dust removal device 40 is configured to perform dust removal on the linear guide rail 1. The structure of the dust removal device 40 is described in more detail below.

[0026] Please refer to Figures 2 to 4, which are perspective views of the combined slider and dust removal device, exploded perspective views of the slider and dust removal device, and combined perspective views of the oscillating element. The dust removal device 40 of this invention includes a scraper blade 41 and an oscillating element 42. The scraper blade 41 is attached to one side of the slider 20 and has a scraper portion 411 that abuts the slide rail 10. Furthermore, the oscillating element 42 is disposed within the scraper blade 41. The oscillating element 42 can be an oscillator or an electronic component capable of generating oscillation signals.

[0027] In this embodiment, the number of end caps 30 and dust removal devices 40 is multiple. An end cap 30 and a dust removal device 40 are respectively attached to each side of the slider 20. In addition, the number of oscillating elements 42 is multiple, and the multiple oscillating elements 42 are spaced apart on the scraper blade 41.

[0028] In one embodiment of this invention, the dust removal device 40 further includes a positioning plate 43 and a shock-absorbing plate 44. The positioning plate 43 is attached to one side of the scraper blade 41. The oscillating element 42 is sandwiched between the scraper blade and the positioning plate 43. In addition, the shock-absorbing plate 44 is disposed between the end cap 30 and the scraper blade 41. The shock-absorbing plate 44 is disposed to absorb the vibration transmitted to the slider 20 and the slide rail 10, so as to avoid the vibration of the oscillating element 42 affecting the transmission precision of the linear slide rail 1.

[0029] Specifically, the scraper blade 41 has a groove 410 on the side facing the positioning plate. On the other hand, the positioning plate 43 has a cutout 430. The oscillating element 42 is disposed in a mounting space 400 formed by the groove 410 and the cutout 430. Furthermore, the scraper blade 41 has a plurality of positioning grooves 412 on the side facing the positioning plate 43. The positioning plate 43 has a plurality of positioning posts 431 on the side facing the scraper blade. The positioning plate 43 is inserted into the positioning grooves 412 through the positioning posts 431 and thus attached to one side of the scraper blade 41.

[0030] Please refer to Figures 5 and 6, which are schematic diagrams and partial enlarged views of the linear slide rail with dust removal device of this invention. The slider 20 and end cap 30 of this invention are integrally formed and fitted onto the slide rail 10. The dust removal device 40 is disposed on one side of the end cap 30 and includes a scraper blade 41 (and a positioning plate 43), an oscillating element 42, and a shock-absorbing plate 44. The scraper blade 41 has an installation space 400, and the oscillating element 42 is disposed within the installation space 400. The shock-absorbing plate 44 is sandwiched between the scraper blade 41 and the end cap 30. Accordingly, the slider 20 can move relative to the slide rail 10, and the oscillating element 42 in the dust removal device 40 can generate oscillations to shake off dust accumulated around the scraper blade 41.

[0031] Please refer to Figure 7, which is a schematic diagram of the application of the linear guide rail with dust removal device in this invention. The linear guide rail 1 of this invention further includes a control element 50 electrically connected to the oscillating element 42. The oscillating element 42 is controlled by the control element 50 to generate vibration. Accordingly, the user can control the operation of the oscillating element 42 according to the actual usage conditions to remove dust accumulated between the guide rail 10 and the slider 20 in a timely manner.

[0032] The above description is merely a preferred embodiment of this case and is not intended to define the scope of the patent in this case. Other equivalent variations that utilize the spirit of the patent in this case should all fall within the scope of the patent in this case.

[0033] 1: Linear guide rail 10: Slide rail 20: Slider 30: End cap 40: Dust removal device 400: Installation space 41: Scraper blade 410: Groove 411: Scraper section 412: Positioning groove 42: Oscillating element 43: Positioning Piece 430: Openwork section 431: Positioning Post 44: Shock Absorbing Pads 50: Control element

Claims

1. A linear guide rail with a dust removal device, comprising: One slide rail; A slider is movably mounted on the slide rail; One end cap is attached to one end face of the slider; And a dust removal device, including: a scraper blade attached to one side of the slider; And an oscillating element is disposed in the scraper blade.

2. The linear guide rail with a dust removal device as described in claim 1, further comprising a shock-absorbing plate disposed between the end cap and the scraper blade.

3. The linear guide rail with dust removal device as described in claim 1, further comprising a positioning plate attached to one side of the scraper blade, and the oscillating element sandwiched between the scraper blade and the positioning plate.

4. The linear slide rail with a dust removal device as described in claim 3, wherein the scraper blade has a groove on the side facing the positioning plate, the positioning plate has a hollow portion, and the oscillating element is disposed in an installation space formed by the groove and the hollow portion.

5. The linear guide rail with a dust removal device as described in claim 3, wherein the scraper blade is provided with a plurality of positioning grooves on the side facing the positioning plate, and the positioning plate is provided with a plurality of positioning posts on the side facing the scraper blade, and the positioning plate is engaged with one side of the scraper blade by inserting the positioning posts into the positioning grooves.

6. The linear slide rail with a dust removal device as described in claim 1, wherein the scraper blade is configured as a scraper portion at the part that is attached to the slide rail.

7. A linear slide rail with a dust removal device as described in claim 1, wherein the number of the end cap and the dust removal device is multiple, and an end cap and a dust removal device are respectively attached to each side of the slide.

8. A linear slide rail with a dust removal device as described in claim 1, wherein the number of the oscillating elements is multiple, and the multiple oscillating elements are spaced apart on the scraper blade.

9. A linear slide rail with a dust removal device as described in claim 1, wherein the oscillating element is an oscillator.

10. The linear guide rail with a dust removal device as described in claim 1, further comprising a control element electrically connected to the oscillating element, the oscillating element being controlled by the control element to generate vibration.

Citation Information

Patent Citations

  • Rolling linear guide rail with dustproof function

    CN218670221U

  • Rolling linear guide rail with dustproof function

    CN220622487U

  • Novel highly-efficient dustproof sliding block

    WO2022077733A1