A slider film covering mechanism

Abstract

The application relates to the technical field of slider devices, and provides a slider film covering mechanism which comprises a bottom plate and a pressing unit arranged above the bottom plate, the pressing unit is connected with a lifting driving mechanism for driving the pressing unit to perform up-down lifting movement, and further comprises: a bearing boss fixedly arranged on the upper surface of the bottom plate and used for bearing and placing a slider and making the sliding groove opening of the slider face upwards; a film covering unit connected below the pressing unit, the film covering unit comprises two side plates oppositely arranged and roller shafts rotatably installed on the outer side surfaces of the two side plates, the bottom of each side plate is provided with a curled arc surface used for guiding a film into the sliding groove when the pressing unit descends and pressing the film on the inner wall and the inner bottom surface of the sliding groove through the roller shafts; and a resisting side plate fixed on the pressing unit and used for continuing to descend with the pressing unit after the film covering unit finishes film covering in the groove and retracts to avoid the film, and pressing the film on the top wall and the outer side wall of the slider.

Description

Technical Field

[0001] This invention relates to the field of slider equipment technology, and more specifically to a slider coating mechanism. Background Technology

[0002] During the manufacturing and distribution of slider equipment, to protect the slider surface and its internal precision tracks from wear, contamination, or oxidation, it is usually necessary to coat or package them. Existing packaging often only involves simple external wrapping of the slider. Because the slider's grooves have a certain depth, they form a recessed structure similar to a "bridge," making it difficult for simple external films to penetrate and adhere to the inner wall of the grooves. During transportation and handling, the film is easily damaged due to being suspended under stress, and dust and impurities can directly contaminate the tracks, affecting the slider's subsequent assembly accuracy and service life. Therefore, we propose a slider coating mechanism. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides a slider coating mechanism, which overcomes the shortcomings of the prior art, has a reasonable design and compact structure, and solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A slider coating mechanism includes a base plate and a pressing unit disposed above the base plate. The pressing unit is connected to a lifting drive mechanism that drives it to move up and down. The mechanism is characterized by further comprising:

[0006] The support boss is fixedly installed on the upper surface of the base plate and is used to support and place the slider with the slider's groove opening facing upwards.

[0007] The laminating unit is connected below the pressing unit. The laminating unit includes two opposing side plates and rollers rotatably mounted on the outer sides of the side plates. The bottom of the side plates is provided with a curved surface, which is used to guide the film into the chute when it moves down with the pressing unit, and press the film onto the inner wall and bottom surface of the chute by the rollers.

[0008] The side plate is fixed to the pressing unit and is used to press the film onto the top and outer walls of the slider after the film coating unit has finished coating the groove and retracted to avoid it.

[0009] Preferably, the supporting boss has an enclosing structure for positioning and placing groups of sliders in the longitudinal direction.

[0010] Preferably, an end seat is fixedly provided on the upper surface of the base plate at both ends of the bearing boss; the end seats are respectively located at the two ends of the slider groove, and the two side walls of the end seats are connected sequentially from top to bottom to form a top chamfer, an upper vertical cut surface, an inclined surface and a lower vertical cut surface, which constitutes a guide path for guiding the coating unit to move vertically and obliquely downward.

[0011] Preferably, the pressing unit includes two mounting frames corresponding to the two end seats respectively, and a top plate fixedly connected between the tops of the two mounting frames; the output end of the lifting drive mechanism is fixedly connected to the upper surface of the top plate and symmetrically fixed to the two sides of the top plate against the side plates.

[0012] Preferably, each mounting frame has a first groove and a second groove that are interconnected and set at a set angle at the lower corner; the film covering unit is located between the two mounting frames, and the longitudinal ends of the side plate are fixedly provided with mounting shafts, which extend outward and into the corresponding first groove, and form a rolling fit with the guide path and the first groove.

[0013] Preferably, a first telescopic rod is provided in the second slide groove along its length direction, and an arc-shaped abutment block is fixedly connected to the movable end of the first telescopic rod. The arc-shaped concave surface of the arc-shaped abutment block faces the junction and connection point of the first slide groove and the second slide groove.

[0014] Preferably, a return spring is also fitted inside the second slide groove, located around the first telescopic rod. The two ends of the return spring abut against the bottom surface of the arc-shaped support block and the inner end wall of the second slide groove, respectively, to provide the arc-shaped support block with an elastic preload pointing in the direction of the first slide groove.

[0015] Preferably, the mounting shaft is configured to abut against and squeeze the arc-shaped support block as the pressing unit continues to descend, pushing the arc-shaped support block and the first telescopic rod to retract into the second slide groove against the elastic force of the return spring, so that the mounting shaft slides from the first slide groove into the second slide groove to avoid the coating unit.

[0016] Preferably, the two side plates are arranged back to back and opposite each other, and the two side plates are elastically connected by a second telescopic rod and a retraction spring sleeved on the second telescopic rod. The fixed end and the output end of the second telescopic rod are respectively hinged to the two side plates.

[0017] Preferably, the cross-section of the side plate is divided into an upper arc-shaped section, a middle vertical section, and a bottom curved arc surface from top to bottom. The upper arc-shaped section is a smooth, non-sharp-cornered convex transition area to prevent the film from tearing when it is bent under stress.

[0018] This invention provides a slider coating mechanism. It has the following advantages:

[0019] 1. This invention, through the coordinated operation of the pressing unit and the film-coating unit, allows for the sequential and complete application of the inner sidewall, inner bottom surface, outer sidewall, and top wall of the slider groove during a single downward press of the lifting drive mechanism. In particular, the ingenious avoidance design, through the installation of the rotating shaft from the first groove into the second groove, enables the film-coating unit to automatically retract and make way after completing the film application within the groove, allowing the supporting side plate to continue advancing downwards to complete the film application on the remaining surfaces. The entire action is fluid and highly automated.

[0020] 2. The upper part of the side plate of the laminating unit is designed with a smooth, non-sharp-angled convex arc section, which effectively avoids severe friction between the film and the edge of the side plate when the film is bent under tension, thereby preventing the film material from being damaged. At the same time, the curled arc surface at the bottom of the side plate can provide smooth downward pressure in the initial stage to pre-fold the film into an inverted trapezoid shape; combined with the rolling action of the roller, it ensures that the film can adhere to the inner wall and bottom surface of the chute. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a side view of the present invention.

[0023] Figure 3 This is a partial structural diagram of the present invention.

[0024] Figure 4 This is a schematic diagram of the base plate structure of the present invention.

[0025] Figure 5 This is a schematic diagram of the pressing unit of the present invention.

[0026] Figure 6 For the present invention Figure 5 A magnified view of a portion of the image.

[0027] Figure 7 This is a schematic diagram of the coating unit of the present invention.

[0028] In the diagram: 1. Base plate; 11. Bearing boss; 12. End seat; 2. Pressing unit; 21. Mounting frame; 22. Top plate; 23. First slide groove; 24. Second slide groove; 25. First telescopic rod; 26. Arc-shaped abutment block; 27. Return spring; 3. Abutment side plate; 4. Film coating unit; 41. Side plate; 42. Curved arc surface; 43. Roller shaft; 44. Mounting shaft; 45. Second telescopic rod; 46. Retraction spring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of this invention, not all of it. All other works obtained by those skilled in the art based on this invention without inventive effort are within the scope of protection of this invention.

[0030] See attached document Figures 1-7 A slider coating mechanism includes a base plate 1, a pressing unit 2, a supporting side plate 3, and a coating unit 4.

[0031] An enclosing support boss 11 is fixedly provided on the upper surface of the base plate 1. The support boss 11 is used for longitudinal positioning and placing a group of sliders, with the groove openings of the group of sliders extending upwards.

[0032] On the upper surface of the base plate 1, at both ends of the bearing boss 11, end seats 12 are fixedly provided. The end seats 12 are located at both ends of the group of slider grooves. The two side walls of the end seats 12 are connected from top to bottom to form a top chamfer, an upper vertical cut surface, an inclined surface and a lower vertical cut surface. These continuous cut surfaces together constitute a guide path for guiding the coating unit 4 to move vertically and obliquely downward.

[0033] The pressing unit 2 is located directly above the base plate 1. It is driven by an external lifting drive mechanism (such as a linear motor, cylinder, or electric cylinder) to achieve reciprocating up and down movement. The pressing unit 2 includes two symmetrically arranged mounting frames 21 corresponding to the end seat 12. The tops of the two mounting frames 21 are fixedly connected to each other by a top plate 22. The output end of the lifting drive mechanism is fixedly connected to the upper surface of the top plate 22. Supporting side plates 3 are fixedly connected to both sides of the top plate 22. The downward position of the supporting side plate 3 corresponds to the position of the slider side wall and top wall placed on the bearing boss 11.

[0034] At the lower corner of each mounting frame 21, a first groove 23 and a second groove 24, which are interconnected and set at a certain angle, are provided. The end of the coating unit 4 can slide along the first groove 23 and the second groove 24;

[0035] A first telescopic rod 25 is provided along the length of the second slide groove 24, and an arc-shaped abutment block 26 is fixedly connected to the movable end of the first telescopic rod 25. The arc-shaped concave surface of the arc-shaped abutment block 26 faces the junction of the first slide groove 23 and the second slide groove 24. A return spring 27 is also provided in the second slide groove 24, which is sleeved around the first telescopic rod 25. The two ends of the return spring 27 abut against the bottom surface of the arc-shaped abutment block 26 and the inner end wall of the second slide groove 24, respectively, providing an elastic preload force to the arc-shaped abutment block 26 in the direction of the first slide groove 23.

[0036] The laminating unit 4 is connected between the lower layers of the two mounting frames 21. The laminating unit 4 includes two side plates 41 arranged back-to-back. The two side plates 41 are elastically connected by a second telescopic rod 45 and a contraction spring 46 sleeved on the second telescopic rod 45. The fixed end and the output end of the second telescopic rod 45 are respectively hinged to the two side plates 41 to maintain the tension and elastic restoring ability of the two side plates 41 during lateral movement, and to prevent the two side plates 41 from deflecting under the action of the contraction spring 46.

[0037] The cross-section of the side plate 41 is divided into an upper arc-shaped section, a middle vertical section, and a bottom curled arc surface 42 section from top to bottom. The lower curled arc surface 42 section is used to make initial contact with the flat film, providing guiding downward pressure and initially folding the flat film into an inverted trapezoidal profile. The middle vertical section mainly provides structural rigidity and stable support for the side plate 41 during the vertical downward pressure process. At the same time, it forms a parallel fit with the vertical cross-section of the end seat 12 during the middle of the downward pressure to ensure the trajectory accuracy of the side plate 41 as it descends vertically. The upper arc-shaped section, as a smooth, non-sharp-cornered convex transition area, is used to avoid severe sharp friction between the film and the upper edge of the side plate when the film is bent under tension, which could cause the film to be torn or damaged. At the same time, it plays a smooth guiding role when the film is tilted and extended, preventing mechanical interference with other components of the pressing unit.

[0038] Each side plate 41 has a roller 43 rotatably mounted on its outer surface, with the roller 43 facing the inner side of the slide groove of the slider. Both longitudinal ends of the side plate 41 are fixedly provided with mounting shafts 44, which extend outward and into the corresponding first slide groove 23, and the outer peripheral surface of the mounting shaft 44 forms a rolling fit with the guide path of the first slide groove 23 and the second slide groove 24.

[0039] Working principle:

[0040] First, place the group of sliders to be coated horizontally on the bearing boss 11, with the slider groove opening facing upwards. Start the external film stretching machine, lay the film to be coated flat and suspend it directly above the end face of the slider groove opening.

[0041] The lifting drive mechanism is activated, driving the pressing unit 2 and the film coating unit 4 to move downwards as a whole. During this process, the curled arc surface 42 at the bottom of the side plate 41 first contacts the suspended film. As the downward pressure proceeds, the film stretching machine gradually releases the film, and the curled arc surface 42 guides the film downwards into the slider groove opening, so that the film is initially stretched and bent in cross-section to form an inverted trapezoidal profile.

[0042] The lifting drive mechanism continues to drive the downward pressure, and the side plate 41 slides downward along the top chamfer and upper vertical tangent on both sides of the end seat 12. At this stage, the inclined surface of the film, guided by the curled arc surface 42, contacts the outer peripheral surface of the roller 43 on the side plate 41. Under the pressing and rolling action of the roller 43, the film is pressed and adhered flatly to the inner wall and inner bottom surface of the slider groove.

[0043] When the side plate 41 moves along the inclined surface of the end seat 12, driving the mounting shaft 44 to the end of the first slide groove 23, the middle vertical section of the side plate 41 corresponds exactly to the lower vertical section of the end seat 12. At this time, the film bonding and laminating process inside the slider slide groove is completed. The lifting drive mechanism continues to control the pressing unit 2 to move downward, and the mounting shaft 44 abuts against and squeezes the arc-shaped convex surface of the arc-shaped support block 26. The mounting shaft 44 overcomes the elastic force of the return spring 27 and pushes the arc-shaped support block 26 and the first telescopic rod 25 to retract into the second slide groove 24. The mounting shaft 44 then slides from the first slide groove 23 into the second slide groove 24, thereby achieving structural avoidance of the laminating unit 4 after completing the laminating in the groove.

[0044] As the mounting shaft 44 slides into the second groove 24, the lifting drive mechanism continues to drive the pressing unit 2 to descend steadily. The supporting side plates 3, fixed to both sides of the top plate 22, descend smoothly and synchronously with the pressing unit 2. The supporting side plates 3, in conjunction with the external film cutting mechanism, cut the film on the film stretching machine and then push the cut film downwards to press and adhere it flatly to the remaining top and outer walls of the slider. At this point, the inner wall, top wall, and outer wall of the slider's groove are all completely covered with film.

[0045] After the film coating is completed, the lifting drive mechanism drives the pressing unit 2 to lift up and reset. Under the elastic action of the reset spring 27 and the contraction spring 46, the first telescopic rod 25 pushes the arc-shaped support block 26 to reset, and the mounting shaft 44 returns to the initial position along the second slide groove 24 and the first slide groove 23, completing one work cycle.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0047] The above description is only used to illustrate the technical solutions of the present invention, and is not intended to limit them. Although the present invention has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the foregoing technical solutions, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A slider coating mechanism, comprising a base plate (1) and a pressing unit (2) disposed above the base plate (1), wherein the pressing unit (2) is connected to a lifting drive mechanism for driving it to move up and down, characterized in that, Also includes: The support boss (11) is fixedly set on the upper surface of the base plate (1) and is used to support the slider and arrange the slider's groove opening facing upward. The film coating unit (4) is connected below the pressing unit (2). The film coating unit (4) includes two side plates (41) arranged opposite to each other and a roller (43) rotatably mounted on the outer side of the two side plates (41). The bottom of the side plate (41) is provided with a curled arc surface (42) for guiding the film into the chute when it moves down with the pressing unit (2), and pressing the film onto the inner wall and inner bottom surface of the chute by the roller (43). The side plate (3) is fixed on the pressing unit (2) and is used to press the film onto the top and outer walls of the slider after the film covering unit (4) has completed the film covering in the groove and retracted to avoid it.

2. The slider coating mechanism as described in claim 1, characterized in that: The support boss (11) has an enclosed structure and is used to position and place groups of sliders in the longitudinal direction.

3. The slider coating mechanism as described in claim 1, characterized in that: The upper surface of the base plate (1) is fixed with end seats (12) at both ends of the bearing boss (11); the end seats (12) are located at both ends of the slider groove, and the two side walls of the end seats (12) are connected sequentially from top to bottom to form a top chamfer, an upper vertical cut surface, an inclined surface and a lower vertical cut surface, which constitute a guide path for guiding the coating unit (4) to move vertically and obliquely downward.

4. The slider coating mechanism as described in claim 3, characterized in that: The pressing unit (2) includes two mounting frames (21) corresponding to the two end seats (12) respectively, and a top plate (22) fixedly connected between the tops of the two mounting frames (21); the output end of the lifting drive mechanism is fixedly connected to the upper surface of the top plate (22), and the side plate (3) is symmetrically fixed to both sides of the top plate (22).

5. The slider coating mechanism as described in claim 4, characterized in that: Each mounting frame (21) has a first groove (23) and a second groove (24) that are interconnected and set at a set angle at the lower corner; the film covering unit (4) is located between the two mounting frames (21), and the two ends of the side plate (41) are fixedly provided with mounting shafts (44). The mounting shafts (44) extend outward and into the corresponding first groove (23), and form a rolling fit with the guide path and the first groove (23).

6. The slider coating mechanism as described in claim 5, characterized in that: A first telescopic rod (25) is provided along its length inside the second slide groove (24). An arc-shaped abutment block (26) is fixedly connected to the movable end of the first telescopic rod (25). The arc-shaped concave surface of the arc-shaped abutment block (26) faces the intersection and connection point of the first slide groove (23) and the second slide groove (24).

7. A slider coating mechanism as described in claim 6, characterized in that: The second slide groove (24) is also fitted with a return spring (27) located outside the first telescopic rod (25). The two ends of the return spring (27) abut against the bottom surface of the arc-shaped support block (26) and the inner end wall of the second slide groove (24) respectively, and are used to provide the arc-shaped support block (26) with an elastic preload pointing towards the first slide groove (23).

8. A slider coating mechanism as described in claim 7, characterized in that: The mounting shaft (44) is configured to abut against and squeeze the arc-shaped support block (26) as the pressing unit (2) continues to descend, pushing the arc-shaped support block (26) and the first telescopic rod (25) to retract into the second slide groove (24) against the elastic force of the return spring (27), so that the mounting shaft (44) slides from the first slide groove (23) into the second slide groove (24) to avoid the film covering unit (4).

9. A slider coating mechanism as described in claim 1, characterized in that: The two side plates (41) are arranged facing each other, and the two side plates (41) are elastically connected by a second telescopic rod (45) and a retraction spring (46) sleeved on the second telescopic rod (45). The fixed end and the output end of the second telescopic rod (45) are respectively hinged to the two side plates (41).

10. A slider coating mechanism as described in claim 1, characterized in that: The cross section of the side plate (41) is divided into an upper arc section, a middle vertical section and a bottom curled arc surface (42) from top to bottom. The upper arc section is a smooth, non-sharp-cornered convex transition area used to prevent the film from tearing when it is bent under stress.

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