Steel belt sealed linear module

Abstract

The utility model provides a kind of steel band sealing type linear module, it includes: module main body, including the accommodation portion with upper opening, the guide rail being located in the accommodation portion and the steel band assembly being located at opening, steel band assembly includes the magnetic attraction strip being located in the length direction of opening two side edges, steel band and the tablet that will steel band front and back two ends be fixed in opening front and back two ends;Drive assembly, including motor and the transmission mechanism being connected with motor power;Sliding seat, be located in transmission mechanism, the bottom of sliding seat is equipped with the slider matched with guide rail, transmission mechanism drives sliding seat to move along guide rail;Slide table, be located in the top of sliding seat, including mounting seat, first roller, second roller and cover plate, two first rollers are arranged on mounting seat along slide table moving direction, two second rollers are respectively two first rollers front and rear, two first rollers lift the middle part of steel band to preset height, two second rollers are located above steel band, and steel band is pressed to the plane where opening is.

Description

Technical Field

[0001] This utility model relates to the field of linear transmission device technology, and in particular to a steel belt sealed linear module. Background Technology

[0002] Linear modules, as core actuators for achieving high-precision linear motion in automated equipment, are widely used in semiconductor manufacturing, precision testing, laser processing, logistics sorting, and 3C electronics assembly. Their reliability, accuracy retention, and service life directly affect the overall operating efficiency and stability of the equipment.

[0003] When traditional linear modules operate in open or harsh conditions with dust, debris, or liquid splashes, critical moving components such as guide rails, ball screws or belts, and sliders are highly susceptible to contaminant intrusion. Once contaminants (such as metal shavings, dust, oil, and coolant) enter the module, they can cause abnormal wear of guide rails and sliders, ball screw jamming, belt slippage or accelerated aging, leading to decreased positioning accuracy, increased operating noise, increased resistance, significantly shortened equipment lifespan, and increased maintenance costs.

[0004] To address such issues, existing technologies primarily employ the following protection methods:

[0005] Telescopic protective covers: They have good rigidity and strong protective capabilities, but their structure is complex and bulky, their cost is high, they require a large installation space, and they may also increase frictional resistance.

[0006] Contact-type sealing strips / scrapers: While relatively simple in structure, they maintain contact and friction with moving parts (such as the slide base) throughout the entire length of the module, inevitably generating additional sliding friction resistance. Especially during high-speed or long-stroke operation, this significantly increases the drive load, consumes more energy, generates heat, and accelerates the wear of the seal itself, affecting the smoothness of movement and positioning accuracy. Furthermore, excessive contact pressure can easily lead to seal deformation and failure.

[0007] Therefore, it is necessary to design a steel strip sealed linear module to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to provide a steel belt sealed linear module that can provide comprehensive and effective protection, minimize additional running resistance, ensure smooth movement, and has a compact structure.

[0009] To achieve the above objectives, this utility model adopts the following technical solution: a steel strip sealed linear module, comprising:

[0010] The module body includes a receiving part with an upper opening, a guide rail disposed in the receiving part, and a steel strip assembly disposed at the opening. The steel strip assembly includes magnetic strips disposed on both sides of the opening along its length, a steel strip, and pressure plates that fix the front and rear ends of the steel strip to the front and rear ends of the opening.

[0011] The drive assembly includes a motor and a transmission mechanism that is poweredly connected to the motor.

[0012] A sliding seat is provided on the transmission mechanism. The bottom of the sliding seat is provided with a slider that cooperates with the guide rail. The transmission mechanism drives the sliding seat to move along the guide rail.

[0013] A slide table, located on top of the sliding seat, includes a mounting base, a first roller, a second roller, and a cover plate. Two first rollers are arranged on the mounting base along the sliding table's moving direction. Two second rollers are located in front of and behind the two first rollers, respectively. The two first rollers lift the middle part of the steel strip to a preset height. The two second rollers are located above the steel strip and press the steel strip against the plane where the opening is located.

[0014] As a further improvement of the present invention, the ratio of the height at which the first roller lifts the steel strip to the horizontal distance between the adjacent first roller and second roller is 1:6-1:3.

[0015] As a further improvement of this utility model, the horizontal distance between the two first rollers is 2-4 times the horizontal distance between adjacent first rollers and second rollers.

[0016] As a further improvement of the present invention, the mounting base has two through slots that extend vertically between adjacent first and second rollers. The steel strip enters from bottom to top through one of the through slots, passes above the first roller, and exits from top to bottom through the other through slot.

[0017] As a further improvement of the present invention, the transmission mechanism includes a lead screw rotatably disposed in the receiving part via a bearing seat and a lead screw nut disposed on the sliding seat. The lead screw is poweredly connected to the motor and drives the sliding seat to move.

[0018] As a further improvement of the present invention, the transmission mechanism further includes a driving wheel, a driven wheel and a transmission belt connecting the driving wheel and the driven wheel, all mounted on the output shaft of the motor, and the lead screw is coaxially connected to the driven wheel.

[0019] As a further improvement of the present invention, the mounting base includes a body connected to the sliding base and two arms located on both sides of the body with their upper surfaces higher than the body. The front and rear ends of the two arms protrude from the body, and the body and the two arms form the through groove.

[0020] As a further improvement of the present invention, the first roller is disposed between the two arm portions that protrude from the body.

[0021] As a further improvement of this utility model, the front and rear ends of the two arms are provided with mounting frames, and the second roller is provided on the mounting frame and located below the mounting frame.

[0022] As can be seen from the above technical solutions, the steel strip sealed linear module of this utility model has the following advantages:

[0023] 1. In the steel strip assembly at the opening of the module body, the magnetic strips on both sides can tightly adhere to the steel strip, and together with the pressure plates at the front and rear ends, they form a closed protective structure. During the movement of the slide table, the second rollers at the front and rear ends press the steel strip against the opening plane, ensuring that the steel strip in the area not covered by the slide table is always in contact with the magnetic strips, effectively preventing dust and other impurities from entering the receiving part, providing reliable protection for the internal guide rails and transmission mechanism, and significantly reducing the risk of failure caused by impurities intruding.

[0024] 2. The first roller on the slide lifts the middle of the steel strip to a preset height, providing ample space for the slide to move and preventing direct friction between the steel strip and the bottom of the slide. Simultaneously, the pressing action of the second roller creates a smooth transition for the steel strip as it moves across the slide, reducing tension fluctuations during movement. This design significantly reduces the resistance of the steel strip to the slide's movement, ensuring the stability of the transmission mechanism as it drives the sliding block along the guide rail, effectively maintaining the module's motion accuracy, and meeting the operational requirements of high-precision equipment.

[0025] 3. The rolling contact method of the steel strip and rollers greatly reduces the wear of the steel strip, while the magnetic contact between the magnetic strip and the steel strip avoids hard impact, further extending the service life of the steel strip assembly and the module as a whole, and reducing the maintenance frequency and cost of the equipment.

[0026] 4. The module has a simple overall structure, with the steel strip assembly tightly integrated with the main body of the module, without adding excessive volume, making it suitable for installation scenarios with limited space. Furthermore, this structure is not limited by the stroke length and can adapt to linear motion requirements of different lengths, thus having a wide range of applications. Attached Figure Description

[0027] Figure 1 This is a perspective view of a steel strip sealed linear module according to an embodiment of the present invention.

[0028] Figure 2 for Figure 1 A three-dimensional view of the sealed linear module of Zhonggang Steel from another angle (slide table and part of the equipment housing are omitted).

[0029] Figure 3 for Figure 1 Cross-sectional view of a steel-sealed linear module.

[0030] Figure 4 for Figure 3 A three-dimensional view of the middle slide (cover plate omitted).

[0031] Figure 5 This is a sectional view of the slide (without cover plate) mating with the steel strip.

[0032] Figure 6 for Figure 3 A three-dimensional view of the middle cover plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Please refer to Figure 1 and Figure 2 As shown, this utility model provides a steel strip sealed linear module, which includes a module body 10, a drive assembly 40, a sliding seat 20 and a slide table 30.

[0035] The module body 10 includes a receiving portion 11 with an upper opening, a guide rail 12 disposed within the receiving portion 11, and a steel strip assembly 13 disposed at the opening. The steel strip assembly 13 includes magnetic strips 131 disposed on both sides along the length of the opening, a steel strip 132, and pressure plates 133 that fix the front and rear ends of the steel strip 132 to the front and rear ends of the opening. The bottom of the sliding seat 20 is provided with a slider 21 that cooperates with the guide rail 12, and the drive assembly 40 drives the sliding seat 20 to move along the guide rail 12.

[0036] Please refer to Figure 2 As shown, the drive assembly 40 includes a motor 41 and a transmission mechanism poweredly connected to the motor 41. The transmission mechanism includes a drive wheel 42 and a driven wheel 43 on the output shaft of the motor 41, a transmission belt 44 connecting the drive wheel 42 and the driven wheel 43, a lead screw 45 rotatably disposed in the receiving part 11 via a bearing seat, and a lead screw nut (not shown) disposed on the sliding seat 20. The lead screw 45 is coaxially connected to the driven wheel 43 and drives the sliding seat 20 to move. Preferably, a mounting plate 46 is provided at one end of the receiving part 11, and the drive wheel 42 and the driven wheel 43 are both disposed on the side of the mounting plate 46 away from the receiving part 11. The motor 41 is mounted on the side of the mounting plate 46 close to the receiving part 11.

[0037] Please refer to Figure 3 and Figure 4 As shown, the slide table 30 is located on top of the slide seat 20, and includes a mounting base 31, a first roller 32, a second roller 33, and a cover plate 34. Figure 6 Two first rollers 32 are arranged on the mounting base 31 along the moving direction of the slide table 30, and two second rollers 33 are respectively located in front of and behind the two first rollers 32. The slide table 30 is installed through the steel strip 132 and can slide along the steel strip 132. Specifically, the two first rollers 32 lift the middle of the steel strip 132 to a preset height, and the two second rollers 33 are located above the steel strip 132 and press the steel strip 132 against the plane where the opening is located. Two through slots 310 are opened on the mounting base 31 between adjacent first rollers 32 and second rollers 33. The steel strip 132 enters from bottom to top in one of the through slots 310, passes above the first roller 32, and exits from top to bottom in the other through slot 310.

[0038] The mounting base 31 includes a body 311 connected to the sliding base 20 and two arms 312 located on both sides of the body 311 with their upper surfaces higher than the body 311. The front and rear ends of the two arms 312 protrude from the body 311, and the body 311 and the two arms 312 enclose the aforementioned through groove 310. A first roller 32 is disposed between the portions of the two arms 312 that protrude from the body 311. The front and rear ends of the two arms 312 are each provided with a mounting bracket 34, and a second roller 33 is disposed on the mounting bracket 34 and located below the mounting bracket 34.

[0039] Please refer to Figure 5 As shown, the ratio of the height H that the first roller 32 lifts the steel strip 132 to the horizontal distance L between adjacent first rollers 32 and second rollers 33 is 1:6-1:3. The horizontal distance between the two first rollers 32 is 2-4 times the horizontal distance between adjacent first rollers 32 and second rollers 33. Under the above ratio, the deformation amplitude of the steel strip 132 between the first rollers 32 and second rollers 33 is moderate, and the elastic stress distribution inside the material is uniform, avoiding plastic deformation caused by excessive stress in local areas, and significantly reducing the probability of steel strip 132 breakage, wrinkling and other failures. Because the steel strip 132 transitions smoothly, the second roller 33 can press the steel strip 132 evenly onto the plane where the opening is located, so that the contact pressure between the steel strip 132 and the magnetic strip 131 remains stable.

[0040] Please refer to Figure 1 , Figure 4 and Figure 6As shown, the cover plate 34 is placed over the mounting base 31 and completely covers the mounting base 31, the first roller 32, and the second roller 33. The cover plate 34 specifically includes a flat plate portion 341 and a vertical portion 342 located on the edge of the flat plate portion 341 and perpendicular to the flat plate portion 341. The flat plate portion 341 has clearance openings 340 on both sides. When the cover plate 34 is placed on the mounting base 31, the two arms 312 of the mounting base 31 are located in the clearance openings 340, and their upper surfaces are exposed from the clearance openings 340 for installing or placing the required transfer fixture (for placing the material to be moved).

[0041] The terms used herein, such as “up,” “down,” “front,” “back,” “left,” and “right,” indicating relative spatial positions, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims.

[0042] Furthermore, the above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A steel strip sealed linear module, characterized in that, include: The module body includes a receiving part with an upper opening, a guide rail disposed in the receiving part, and a steel strip assembly disposed at the opening. The steel strip assembly includes magnetic strips disposed on both sides of the opening along its length, a steel strip, and pressure plates that fix the front and rear ends of the steel strip to the front and rear ends of the opening. The drive assembly includes a motor and a transmission mechanism that is poweredly connected to the motor. A sliding seat is provided on the transmission mechanism. The bottom of the sliding seat is provided with a slider that cooperates with the guide rail. The transmission mechanism drives the sliding seat to move along the guide rail. A slide table, located on top of the sliding seat, includes a mounting base, a first roller, a second roller, and a cover plate. Two first rollers are arranged on the mounting base along the sliding table's moving direction. Two second rollers are located in front of and behind the two first rollers, respectively. The two first rollers lift the middle part of the steel strip to a preset height. The two second rollers are located above the steel strip and press the steel strip against the plane where the opening is located.

2. The steel strip sealed linear module as described in claim 1, characterized in that: The ratio of the height to which the first roller lifts the steel strip to the horizontal distance between the adjacent first roller and second roller is 1:6 to 1:

3.

3. The steel strip sealed linear module as described in claim 1, characterized in that: The horizontal distance between the two first rollers is 2-4 times the horizontal distance between adjacent first rollers and second rollers.

4. The steel strip sealed linear module as described in claim 1, characterized in that: The mounting base has two through slots located between adjacent first and second rollers. The steel strip enters from bottom to top in one of the through slots, passes over the top of the first roller, and exits from top to bottom in the other through slot.

5. The steel strip sealed linear module as described in claim 1, characterized in that: The transmission mechanism includes a lead screw rotatably mounted in the receiving part via a bearing seat and a lead screw nut mounted on the sliding seat. The lead screw is powered by the motor and drives the sliding seat to move.

6. The steel strip sealed linear module as described in claim 5, characterized in that: The transmission mechanism also includes a driving wheel, a driven wheel, and a transmission belt connecting the driving wheel and the driven wheel, all mounted on the output shaft of the motor. The lead screw is coaxially connected to the driven wheel.

7. The steel strip sealed linear module as described in claim 4, characterized in that: The mounting base includes a body connected to the sliding seat and two arms located on both sides of the body with their upper surfaces higher than the body. The front and rear ends of the two arms protrude from the body, and the body and the two arms enclose the through groove.

8. The steel strip sealed linear module as described in claim 7, characterized in that: The first roller is positioned between the portions of the two arms that protrude from the body.

9. The steel strip sealed linear module as described in claim 7, characterized in that: The front and rear ends of both arms are provided with mounting frames, and the second roller is located on the mounting frame and below the mounting frame.

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