TWI608178B - Dust-proof linear slide device - Google Patents

Description

Fully dust-proof linear slide device

The present invention relates to a linear slide device, and more particularly to a linear slide device that is slidably disposed on a linear slide for carrying other objects.

As shown in the first and second figures, the linear slide device 10 (linear slider) currently applied to the linear slide 20 is generally composed of a body 101, two circulators 102, a plurality of rollers 103, and a dust cover 104. The composition is rolled by the roller 103 in the track of the base 101 and the two-end circulator 102, so that the linear slide device 10 can smoothly move on the linear slide 20. The dust cover 104 is usually coupled to the end of the circulator 102 to form an end dustproof structure of the linear sliding device 10. The dust cover 104 is formed with a 凸-shaped convex edge 1041 matching the outer shape of the linear slide rail 20, and the convex edge 1041 is used for a straight line. When the slide device 10 moves on the linear slide rail 20, the processed dust or foreign matter falling on the surface of the linear slide rail 20 is scraped off to prevent it from being caught in the running area of the roller 103 on the linear slide rail 20, which interferes with the roller. The smooth rolling of the 103 under high-speed motion causes the linear slide device 10 to fail.

However, the machining dust or foreign matter may invade from the bottom end surface of the linear sliding device 10 or the screw hole 201 on the upper surface of the linear sliding rail 20 in addition to the intrusion of the linear sliding device 10 in the direction in which the linear sliding device 10 travels. The edge invades the running area of the roller 103 to the linear slide 20. To this end, the conventional linear sliding device 10 has various types of dust-proof and dust-proof structures, which are respectively disposed at the bottom of the base 101 and the upper end of the rail groove 1011 of the base 101, for example, as shown in Chinese Patent Publications CN101612625, CN101025197, CN201241917, CN103883620, and the United States. Various conventional dustproof structures disclosed in the patent publications US Pat. No. 4,918,846, US Pat. No. 4, 092, 095, US Pat. No. 5, 001, 1300, US Pat. No. 5, 527, 549, US Pat. No. 5, 594, 720, US Pat.

As shown in the third figure, the upper dust-proof structure is formed by using a stamped iron piece 105, and the two dust-proof strips 106 are joined to the two sides or the bottom surface of the iron piece 105 to lock the iron piece 105 to the seat body 101. Above the rail groove 1011, or the iron piece 105 is disposed on the rail groove 1011, and then the two ends are locked or engaged in the two circulators 102, so that the two dustproof strips 106 abut against the top surface of the linear slide rail 20, To prevent dust and foreign matter from being caught in the roller 103. However, the design of the above dust-proof structure is equivalent to opening a stamping die for punching out the iron piece 105, and opening a plastic injection die for injecting the dust-proof strip 106 into the iron piece 105, so that the manufacturing cost thereof will be special. expensive. Moreover, the iron piece 105 must be locked or engaged at a predetermined position, resulting in a cumbersome assembly process, affecting assembly cost and production efficiency.

SUMMARY OF THE INVENTION An object of the present invention is to provide a linear sliding device having a comprehensive dustproof, thereby simplifying the manufacturing and assembling procedures of the dustproof structure, thereby achieving the purpose of reducing manufacturing and assembly costs and improving production efficiency.

In order to achieve the above object, the present invention has a fully dustproof linear sliding device for slidingly assembling on a linear slide rail, which is preferred. The solution includes: a body having a top surface, a bottom surface opposite to the top surface, and two opposite end surfaces, a rail groove recessed in the center of the bottom surface, and at least one load disposed on two sides of the rail groove a track, and at least one unloaded track disposed on the seat body and respectively connected to the two ends; a second circulator coupled to the two ends of the seat body, wherein the inner side of the corresponding body is respectively connected to the load track a circulating track with the unloaded track; a plurality of rollers arranged in a rolling manner in the load track and the unloaded track for rolling between the load track and the linear slide; and an integral injection of plastic The molded dustproof unit is formed with two dustproof end caps respectively corresponding to the outer sides of the two circulators, one of the two dustproof end caps for abutting against the top surface and the side surface of the linear slide rail a sliding rail port having a top edge and two side edges; the two rails are connected between the sliding rail ports of the two dustproof end covers for abutting against the upper dustproof strip on the top surface of the linear sliding rail, The dust-proof strip is integrally formed at the top The cross-sectional shape of the upper dustproof strip includes a concave surface at a lower end, and a first lip portion on a side of the concave surface for abutting against a top surface of the linear slide rail; and two pieces are connected to the two dustproof end covers And corresponding to the lower dustproof sheet which is combined with the bottom surface of the two sides of the rail groove of the base body.

In the linear sliding device having the overall dustproof, the cross-sectional shape of the upper dustproof strip is a trapezoidal shape having a narrow upper end and a narrow lower end.

In the above-mentioned linear sliding device with full dustproof, the top edge and the two side edges of the sliding rail opening are respectively provided with a second lip portion abutting against the linear sliding rail.

In the above linear sliding device with full dustproof, the lower dustproof sheet has a third lip that abuts against the two side walls of the linear slide rail.

In the above-mentioned linear sliding device with comprehensive dustproof, the dustproof unit is formed by DuPont TPU 1254D plastic integrated injection molding.

In the above-mentioned linear sliding device with full dustproof, the circulator forms a receiving portion opposite to the outer side surface of the inner side surface thereof, and a convex wall surrounding the top edge and the side edge of the receiving portion, the convex wall is provided with at least one The dustproof end cover of the dustproof unit is disposed on the outer side of the circulator, and the edge of the dustproof end cover is provided with a second positioning portion that is engaged with the first positioning portion.

In the above-mentioned linear sliding device with full dustproof, the first positioning portion is a notch formed in the convex wall, and the second positioning portion is a tab formed on an edge of the dustproof end cover, the shape of the tab and the notch Match.

The invention has a full-dust-proof linear sliding device, which can be integrally formed on the two dust-proof strips of the dustproof unit, so that when the linear sliding device is slidably coupled to the linear sliding rail, the first lip of the upper dustproof strip is abutted against The top surface of the linear slide prevents machining dust or foreign matter in the screw holes of the linear slide from entering the roller and the load rail. Moreover, the two dustproof strips of the present invention are integrally formed with the two dustproof end caps of the dustproof unit, which simplifies the manufacturing and assembling procedures of the dustproof structure, and achieves the benefits of cost reduction and production efficiency improvement.

1‧‧‧ body

11‧‧‧ top surface

12‧‧‧ bottom

13‧‧‧ end face

14‧‧‧ rail slot

15‧‧‧Load track

16‧‧‧Unloaded orbit

2‧‧‧Circulator

21‧‧‧ 容部

22‧‧‧Bulge wall

23‧‧‧First Positioning Department

231‧‧ ‧ gap

3‧‧‧Roller

4‧‧‧Dust unit

41‧‧‧Dust end caps

42‧‧‧Slide rail

421‧‧‧ top side

422‧‧‧ side

423‧‧‧second lip

43‧‧‧Upper dust strip

431‧‧‧ concave

432‧‧‧First lip

44‧‧‧Under the dustproof sheet

441‧‧‧ Third lip

45‧‧‧Second Positioning Department

451‧‧‧Slice

20‧‧‧Linear slides

201‧‧‧ screw holes

The first figure is a schematic perspective view of a conventional linear sliding device and a linear sliding rail.

The second figure is a schematic cross-sectional view of a conventional linear slide device and a linear slide.

The third figure is a schematic perspective view of the dustproof structure on the conventional linear sliding device.

The fourth figure is a perspective view of a preferred embodiment of the linear sliding device of the present invention.

Figure 5 is an exploded perspective view of a preferred embodiment of the linear slide device of the present invention.

Figure 6 is a cross-sectional perspective view of a preferred embodiment of the dustproof unit of the present invention.

The seventh figure is a schematic cross-sectional view of the combination of the dustproof unit and the linear slide of the present invention.

The structural features and other functions and purposes of the present invention are described in detail below with reference to the accompanying drawings:

As shown in the fourth and fifth figures, the present invention has a fully dust-proof linear sliding device, and a preferred embodiment thereof comprises: a body 1 having a top surface 11 opposite to the bottom surface 12 of the top surface 11, The two opposite end faces 13, a rail groove 14 recessed in the center of the bottom surface 12, are respectively disposed on at least one load rail 15 on both sides of the rail groove 14, and at least one provided on the seat body 1 and respectively provided with the two end faces 13 Load rail 16. The two circulators 2 are coupled to the two ends of the base body 1, and are provided with circulating tracks (not shown) that communicate the load rails 15 and the unloaded rails 16 on the inner side surfaces of the corresponding base bodies 1, respectively. A plurality of rollers 3, which may be balls or rollers, are arranged in a rolling arrangement in the load rail 15, the unloaded rail 16 and the circulating track for rolling between the load rail 15 and the linear rail 20. And a dustproof unit 4, which is a plastic injection molding structure; the structure has two dustproof end caps 41 respectively corresponding to the outer side surfaces of the two circulators 2, respectively disposed at the center of the two dustproof end covers 41 for abutting In the linear a sliding rail 42 on the top surface and the side of the sliding rail; two upper moldings are integrally connected to the upper dustproof strip 43 between the sliding rails 42 of the dustproof end cover 41, and the upper dustproof strip 43 is used for abutting against the linear sliding rail a top surface of the second surface (as shown in the seventh figure); and two lower dust-proof sheets 44 connected between the two dust-proof end covers 41 and correspondingly to the bottom surface 12 of the base body 1; The entire dustproof unit 4 can be made.

As shown in the fifth and sixth figures, the dustproof unit 4 is preferably formed by DuPont TPU 1254D plastic integrated injection molding. The sliding rail 42 of the dustproof unit 4 has a top edge 421 and two side edges 422. The upper dustproof strip 43 is integrally molded and connected between the top edges 421 of the two dustproof end caps 41. Each of the upper dust-proof strips 43 preferably has a trapezoidal shape with a cross-sectional shape having a narrow upper end and a narrower end. The cross-sectional shape includes a concave surface 431 at the lower end and a first lip portion 432 at the two sides of the concave surface 431. A lip portion 432 is used to abut against the top surface of the linear slide rail 20, so that the screw hole 201 of the linear slide rail 20 is located between the two upper dust-proof strips 43, and the processing of the dust or foreign matter in the screw hole 201 can be prevented. Into the roller 3 and the load rail 15 .

Further, as shown in the fifth, sixth, and seventh figures, the top edge 421 and the two side edges 422 of the slide rail 42 of the dustproof end cover 41 of the dustproof unit 4 are respectively provided with a second lip portion 423. The second lip portion 423 is for abutting against the top surface and the two side surfaces of the linear slide rail 20. Further, the lower dustproof sheet 44 is also integrally molded with the dustproof end cap 41 and the upper dustproof strip 43, and the lower dustproof sheet 44 has a third lip portion 441 that abuts against the two side walls of the linear slide rail 20.

Further, as shown in the fifth and sixth figures, the circulator 2 is formed with a receiving portion 21 opposite to the outer side surface of the inner side surface thereof, and a convex wall 22 surrounding the top side and the two side edges of the receiving portion 21. The convex wall 22 is provided with at least one first set The first positioning portion 23 is preferably located on the top side and the two sides (three in total), and the first positioning portion 23 is preferably formed in the notch 231 of the convex wall 22. . The dustproof end cover 41 of the dustproof unit 4 is accommodated in the accommodating portion 21 on the outer surface of the circulator 2, and the edge of the dustproof end cover 41 is provided with the first positioning portion 23 The second positioning portion 45 is preferably located on the top side and the two sides, and the second positioning portion 45 is preferably a tab formed on the edge of the dustproof end cover 41. 451. The shape of the tab 451 matches the notch 231. Therefore, when the dustproof unit 4 is combined in the accommodating portion 21 of the circulator 2, the first positioning portion 23 and the second positioning portion 45 can be quickly and accurately aligned and engaged to achieve the foregoing simplified assembly procedure. efficacy.

The present invention has a full-dust-proof linear sliding device capable of firstly forming the upper dust-proof strip 43 when the linear sliding device is slidably coupled to the linear slide rail 20 by integrally forming the structure of the dust-proof strip 43 on the two sides of the dustproof unit 4. The lip portion 432 abuts against the top surface of the linear slide rail 20, preventing processing dust or foreign matter in the screw hole 201 of the linear slide rail 20 from entering the roller and the load rail. In particular, the two upper dustproof strips 43 of the present invention are integrally formed with the two dustproof end caps 41 and the lower dustproof sheets 44 of the dustproof unit 4, and the dustproof unit 4 can be formed by a single injection molding die, and only By assembling the two dustproof end caps 41 on the outer side surface of the two circulators 2, the two upper dustproof strips 43 can be placed on the rail grooves 14 of the base body 1, so that the manufacturing and assembling procedures of the dustproof structure can be greatly simplified and achieved. Reduce costs and improve production efficiency and other benefits.

In summary, the present invention has a comprehensive dust-proof linear sliding device, which has practicality and creativity, and its technical means are also new. Ying is undoubted, and the effect is in line with the design purpose, which has been said to be reasonable and clear. To this end, the invention patent application was filed according to law, but the bureau was requested to give a detailed examination, and the patent was granted as a prayer.

1‧‧‧ body

11‧‧‧ top surface

12‧‧‧ bottom

13‧‧‧ end face

14‧‧‧ rail slot

15‧‧‧Load track

16‧‧‧Unloaded orbit

2‧‧‧Circulator

3‧‧‧Roller

4‧‧‧Dust unit

41‧‧‧Dust end caps

42‧‧‧Slide rail

421‧‧‧ top side

422‧‧‧ side

423‧‧‧second lip

43‧‧‧Upper dust strip

44‧‧‧Under the dustproof sheet

Claims (7)

A linear sliding device with comprehensive dustproofing for sliding assembly on a linear sliding rail, comprising: a body having a top surface, a bottom surface opposite to the top surface, two opposite end surfaces, and a recess a rail groove at a center of the bottom surface, at least one load rail disposed on two sides of the rail groove, and at least one unloaded rail disposed on the base body and respectively provided with two ends; a second circulator coupled to the seat The two ends of the body are respectively provided with a circulating track connecting the load rail and the unloaded track to the inner side surface of the body; a plurality of rollers are arranged in the rolling track and the unloaded track in a rolling manner, Rolling between the load rail and the linear slide rail; and a dust-proof unit integrally formed by plastic injection molding, which is formed with two dust-proof end caps respectively corresponding to the outer side surfaces of the two circulators, one for each The center of the two dustproof end caps is used for abutting against the top rails of the linear rails and the side rails. The rail rails have a top edge and two side edges; the two rails are connected to the rails of the two dustproof end caps. Used for abutment An upper dust-proof strip on a top surface of the linear slide rail, wherein the upper dust-proof strip is integrally formed on the top edge, and the cross-sectional shape of the upper dust-proof strip includes a concave surface at a lower end, and is located at a side of the concave surface for abutting a first lip portion of the top surface of the linear slide rail; and two lower dustproof sheets connected between the two dustproof end covers and corresponding to the bottom surfaces of the two sides of the rail groove of the base body. The linear sliding device with full dust prevention according to claim 1, wherein the upper dustproof strip has a sectional shape of a trapezoidal shape having a narrow upper end and a lower end. The linear sliding device of claim 1 , wherein the top edge and the two sides of the sliding rail are respectively provided with a second lip that abuts the linear sliding rail, and the second lip and the second lip A lip is connected. A linear sliding device having a full dustproofing according to claim 3, wherein the lower dustproof sheet has a third lip that abuts against the side walls of the linear sliding rail. The linear sliding device with full dust prevention according to any one of claims 1 to 4, wherein the dustproof unit is formed by DuPont TPU 1254D plastic integrated injection molding. The linear sliding device with full dust prevention according to claim 1, wherein the circulator forms an accommodating portion opposite to the outer side surface of the inner side surface thereof, and a convex wall surrounding the top edge and the side edge of the accommodating portion, the convex portion The wall is provided with at least one first positioning portion; and the dustproof end cover of the dustproof unit is received in the receiving portion of the outer side of the circulator, and the edge of the dustproof end cover is provided with the first positioning portion Two positioning parts. The linear sliding device with full dust prevention according to claim 6, wherein the first positioning portion is a notch formed in the convex wall, and the second positioning portion is a tab formed on an edge of the dustproof end cover, the tab The shape matches the gap.