CN116357672A

CN116357672A - Linear slide rail with jet dedusting device

Info

Publication number: CN116357672A
Application number: CN202111625692.5A
Authority: CN
Inventors: 梁裕旼; 陈贤佑; 杨文豪
Original assignee: Hiwin Technologies Corp
Current assignee: Hiwin Technologies Corp
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2023-06-30

Abstract

The invention provides a linear slide rail with an air-jet dust-removing device, which comprises a slide rail, a slide block and an air-jet dust-removing device. The air-jet dust-removing device comprises a set of rail parts which are arranged around the sliding rail; an air inlet connected with an air pressure source; a main runner connected with the air inlet; a plurality of secondary flow channels communicated with the main flow channel; each secondary runner is sequentially arranged from small to large according to the distance between the secondary runner and the air inlet hole; and the outlet flow passage is annularly arranged on the sleeve rail part and communicated with each secondary flow passage. Therefore, the dust is removed completely and uniformly all around the sliding rail.

Description

Linear slide rail with jet dedusting device

Technical Field

The invention relates to a linear sliding rail, in particular to a linear sliding rail with an air injection dust removing device.

Background

JP2012219989a discloses a cooling nozzle for a motion guiding device, which has the disadvantage: 1. lateral air supply is strong near the air source end, but weak far from the air supply end. 2. If the gas enters from the right, the dust removal effect of the bead groove positioned at the lower left is the weakest.

JP6008934B2 discloses a cooling nozzle for a movement guiding device, which has the disadvantage that: 1. the gas supply flow passage has the same aperture, so that the more far from the gas source, the weaker the gas is obtained. 2. The air passage is not designed with different inclination angles, so that the air cannot be completely sprayed along the inclined surface; the two points are combined, and dirt is easy to be blocked in the grooves of the inclined surface and the sliding rail.

The CN207297633U patent discloses a pneumatic booster linear guide rail, which has the disadvantage that the air flow channel is designed to be uniform in thickness, which can cause the situation that the sliding rail is not completely cleaned easily due to the fact that the air flow only preferentially moves and approaches, and the cleaning effect is not good, so that the whole circumference of the rail cannot be cleaned.

Disclosure of Invention

The invention mainly aims at providing a linear slide rail with an air injection dust removing device, which can completely and uniformly remove dust on the whole periphery of the slide rail.

The present invention provides a linear sliding rail with an air-jet dust-removing device, comprising a sliding rail, a sliding block slidably disposed on the sliding rail, and an air-jet dust-removing device. The air-jet dust-removing device comprises: the rail part is arranged around the sliding rail; an air inlet; a main runner connected with the air inlet; a plurality of secondary flow channels communicated with the main flow channel; each secondary runner is sequentially arranged from small to large according to the distance between the secondary runner and the air inlet hole; and the outlet flow passage is annularly arranged on the sleeve rail part and communicated with each secondary flow passage.

By arranging each secondary runner from small to large in sequence according to the distance between the secondary runner and the air inlet hole, the air pressure can be evenly distributed to the outflow runner, so that the dust can be removed completely and evenly around the sliding rail.

Preferably, the air-jet dust-removing device further comprises a through-exhaust part and an exhaust groove, wherein the through-exhaust part is arranged around the sliding rail to form a through-exhaust gap, the through-exhaust gap is communicated with the outflow channel, and the exhaust groove is positioned at one side of the outflow channel, surrounds the sliding rail and is communicated with the through-exhaust gap.

Preferably, the air-jet dust-removing device has a first body and a second body, and the main flow channel, each secondary flow channel and the outflow channel are positioned between the first body and the second body.

Preferably, the main runner has a plurality of first main runners and a second main runner, the second main runner is directly communicated with the outflow runner, and the flow carrying surface of the second main runner is smaller than the flow carrying surface of each first main runner communicated with the secondary runner.

Preferably, the outflow channel has an outflow end facing the exhaust channel.

Preferably, the outflow channel forms an extrusion gap, which is smaller than 0.3mm and larger than 0.1mm.

Preferably, the outflow channel is connected with an outflow inclined surface, and the outflow inclined surface and the outflow channel form an outflow guide angle, and the outflow guide angle is between 130 degrees and 150 degrees.

Preferably, the through-air gap is less than 0.3mm and greater than 0.1mm.

Preferably, the exhaust groove is connected with an exhaust inclined plane, the exhaust inclined plane and the exhaust groove form an exhaust guide angle, and the exhaust guide angle is between 105 and 125 DEG

Preferably, the air-jet dust-removing device is integrally formed.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of an air jet dust removal device according to a preferred embodiment of the present invention.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 1.

Fig. 4 is a partial enlarged view of fig. 3.

Fig. 5 is a sectional view taken along line 5-5 of fig. 1.

Fig. 6 is a perspective view of another preferred embodiment of the present invention.

FIG. 7 is a sectional view taken along line 7-7 of FIG. 6.

Fig. 8 is a sectional view taken along line 8-8 of fig. 6.

Fig. 9 is a perspective view of an air jet dust removal device according to another preferred embodiment of the present invention.

FIG. 10 is a sectional view taken along line 10-10 of FIG. 9.

[ reference numerals description ]

Jet dedusting device-1

Slider-2

Slide rail-10

Body-20

End cap-30

Cover body-40

Scraper element-50

First body-70

Second body 80

Rail sleeve part-91

Air inlet hole-92

Main runner-93

Main runner-93A

Main runner 93B

Secondary flow channel-94

Flow channel-95

Outflow end-96

Through-exhaust part-97

Exhaust groove-98

Guide portion-941

Outflow inclined plane-961

Exhaust bevel 981

Outflow guide angle-A1

Exhaust guide angle-A2

Through-exhaust gap-G1

Extrusion gap-G2

Detailed Description

Applicant hereby gives notice that throughout this specification, including the examples presented below and claims, directional terms are used to refer to the directions in the drawings. Next, in the embodiments to be described below and the drawings, the same reference numerals denote the same or similar components or structural features thereof.

As shown in fig. 1 to 5, a linear slide having an air-jet dust-removing device according to a preferred embodiment of the present invention includes a slide rail 10, a slide block 2 slidably disposed on the slide rail 10, and an air-jet dust-removing device 1. The slider 2 has a body 20, an end cap 30, a cover 40, and a scraper 50. The cover 40 and the scraping member 50 are disposed on the end cover 30, which is a common lubrication module configuration, and is not repeated.

The air-jet dust-removing device 1 comprises a first body 70 and a second body 80.

The first body 70 is coupled to the second body 80, and the second body 80 is coupled to the end cap 30.

The first body 70 has an air inlet 92 for receiving an air pressure source.

The first body 70 has a row portion 97 surrounding the slide rail 10; the through-row portion 97 forms a through-row gap G1 with the slide rail 10, and the through-row gap G1 is preferably smaller than 0.3mm and larger than 0.1mm. The reason is that if the through-air gap G1 exceeds 0.3mm, the air pressure at the through-air gap G1 is easily insufficient, and the dust removal effect is insufficient; if the through-air gap G1 is smaller than 0.1mm, the air pressure at the through-air gap G1 is easily increased, and the air is sometimes not smooth.

The first body 70 has an exhaust slot 98 disposed around the sliding rail 10 and having a predetermined depth, and is in communication with the through-hole G1.

The second body 80 has a set of rail portions 91 surrounding the slide rail 10.

The second body 80 has a main flow channel 93, and the main flow channel 93 has a plurality of first main flow channels 93A and a second main flow channel 93B. The plurality of secondary flow passages 94 communicate with the first primary flow passage 93A. An outlet flow passage 95 communicates with each of the first main flow passage 93A, the second main flow passage 93B, and each of the sub flow passages 94.

Each first main flow passage 93A opens to both sides of the slide rail 10. The second main flow channel 93B communicates with the outflow channel 95 at a position closer to the second main flow channel 93B, i.e., to the top of the slide rail 10. In this embodiment, the width of the second main flow channel 93B leading to the top of the sliding rail 10 is smaller than the width of the first main flow channel 93A located at both sides of the sliding rail 10, so that the air flow is more evenly distributed.

In this embodiment, the depth of the primary flow channel 93 is the same as the depth of the secondary flow channel 94, and the depth of the flow channel 95 is shallower to allow the re-extrudable gas.

Each of the sub-channels 94 has a larger flow-carrying surface for a longer flow distance from the inlet 92 to evenly distribute the air flow. The flow distance referred to herein is illustrative of the flow distance of the gas.

The air-jet dust-removing device 1 further forms a guiding portion 941 in front of each sub-flow passage 94 in the main flow passage 93 to split the air flow to the corresponding sub-flow passage 94.

The outflow channel 95 is disposed around one side of the rail portion 91 and communicates with the through-hole G1.

Furthermore, the second body 80 forms an outflow end 96 at the end of the outflow channel 95.

The outflow end 96 and the through-drain 97 define a pressing gap G2, and the pressing gap G2 is preferably smaller than 0.3mm and larger than 0.1mm. The reason is that if the extrusion gap G2 exceeds 0.3mm, the insufficient air pressure at the extrusion gap G2 is easily formed, and the dust removing effect is insufficient; if the extrusion gap G2 is smaller than 0.1mm, the air pressure at the extrusion gap G2 tends to be too high, and the air may be out of order.

The outflow end 96 forms an outflow inclined surface 961, and the outflow inclined surface 961 and the outflow channel 95 form an outflow guiding angle A1, preferably 90 degrees to 180 degrees, more preferably 130 degrees to 150 degrees, so that the airflow can generate a stronger dust removing effect on the sliding rail 10.

As noted above, the primary flow channel 93, secondary flow channel 94 and outflow channel 95 can also be defined as being located between the first body 70 and the second body 80.

The exhaust groove 98 is connected with an exhaust inclined plane 981, and the exhaust inclined plane 981 and the exhaust groove 98 form an exhaust guiding angle A2 in the longitudinal direction, preferably 90 degrees to 180 degrees, more preferably 105 degrees to 125 degrees, so that the air flow is smoother.

By providing a larger flow surface for each of the sub-channels 94 with a longer flow distance from the air inlet 92 in this embodiment, the air pressure can be evenly distributed to the air outlet 95 and be ejected to the air outlet 98 through the air outlet gap G1, so that the sliding rail 10 can be completely and evenly cleaned all around, and the purpose of the present invention is achieved.

As shown in fig. 6 to 10, another embodiment of the present invention provides an air-jet dust-removing device 1, which has substantially the same component names and symbols as those of the previous embodiment, and the difference is that:

the first body 70 and the second body 80 of the foregoing embodiment are combined, and the first body 70 and the second body 80 of the foregoing embodiment are modified to be integral, for example, integrally formed by using 3D printing.

Therefore, the embodiment can simplify the structure, facilitate the manufacture, reduce the assembly operation and the like, and achieve the aim of the invention.

However, the present invention is not limited to the above-described configuration, and the present invention can be achieved by only one main flow channel 93 and a plurality of sub flow channels 94.

In addition, the depth of the main flow channel 93 and the secondary flow channel 94 may be different, or the depth of each secondary flow channel 94 may be different, so long as the depth and width are adjusted to achieve a desired flow cross-sectional area.

The primary flow channel 93, the secondary flow channel 94 and the outflow channel 95 are not necessarily provided in the second body 80 as described above; if necessary, the primary flow channel 93, the secondary flow channel 94 and the outflow channel 95 may be provided in the first body 70.

Claims

1. A linear slide having an air jet dedusting device, comprising:

a slide rail;

the sliding block is slidably arranged on the sliding rail; a kind of electronic device with high-pressure air-conditioning system

The air-jet dust-removing device is arranged on the sliding block and comprises:

the rail part is arranged around the sliding rail;

an air inlet connected with an air pressure source;

a main runner connected with the air inlet;

a plurality of secondary flow channels communicated with the main flow channel, wherein each secondary flow channel is sequentially arranged from small to large according to the distance between the secondary flow channel and the air inlet hole;

and the outlet flow passage is annularly arranged on the sleeve rail part and communicated with each secondary flow passage.

2. The linear slide with air-jet dust-removing device according to claim 1, further comprising a through-exhaust part and an exhaust groove, wherein the through-exhaust part is arranged around the slide to form a through-exhaust gap, the through-exhaust gap is communicated with the outflow channel, and the exhaust groove is arranged at one side of the outflow channel, surrounds the slide and is communicated with the through-exhaust gap.

3. The linear slide with an air-jet dust-removing device according to claim 2, further comprising a first body and a second body, wherein the main flow channel, each secondary flow channel and the outflow channel are located between the first body and the second body.

4. The linear slide with a jet dedusting device as claimed in claim 1, wherein the main runner has a plurality of first main runners and a second main runner, the second main runner is directly connected to the outflow runner, and the flow carrying surface is smaller than the flow carrying surface of each first main runner connected to the secondary runner.

5. The linear slide with air-jet dust collector according to claim 1, wherein the main flow channel is formed with a guiding part in front of each sub flow channel to split the air flow to each corresponding sub flow channel.

6. The linear slide with air jet dust collector according to claim 2, wherein the outlet channel has an outlet end facing the air discharge channel.

7. The linear slide with an air jet dust collector according to claim 1, wherein the outflow channel forms an extrusion gap, and the extrusion gap is smaller than 0.3mm and larger than 0.1mm.

8. The linear slide with an air jet dust collector according to claim 1, wherein the outflow channel is connected to an outflow slope, the outflow slope and the outflow channel form an outflow guiding angle, and the outflow guiding angle is between 130 degrees and 150 degrees.

9. The linear slide with air jet dedusting device as in claim 2, wherein the through-air gap is less than 0.3mm and greater than 0.1mm.

10. The linear slide with an air jet dust collector according to claim 2, wherein the air discharge groove is connected with an air discharge inclined surface, the air discharge inclined surface and the air discharge groove form an air discharge guiding angle, and the air discharge guiding angle is between 105 degrees and 125 degrees.