Server case upper cover film pasting device

Abstract

The utility model discloses a film pasting device for an upper cover of a server case. The film pasting device comprises a base, two stand columns, two inner supporting blocks used for supporting the middle of the upper cover of the case and a plurality of outer supporting blocks used for supporting the outer edge of the upper cover of the case. The upper end of the stand column is rotationally connected with a turntable; a first U-shaped frame is slidably connected to the two rotating discs. The first U-shaped frame is rotationally connected with a pressure roller; and a blade is connected to the first U-shaped frame in a sliding manner. The laminating machine is suitable for laminating the upper cover of the case manually by a single person and is simple and compact in structure. Especially for a metal plate workpiece with a protruding riveting piece or a bent edge, the protective film is flatly attached to the surface of the workpiece, bubbles and wrinkles are reduced, and the film covering quality and attractiveness are improved. The blade slides to cut off the protective film, the protective film cannot be lengthened in the cutting-off process, the second U-shaped frame is turned to the upper end of the first U-shaped frame, the blade slides into the sliding block under the action of gravity, and the blade is prevented from being scratched accidentally; and the safety is high.

Description

Technical Field

[0001] This utility model belongs to the field of product packaging technology, and in particular relates to a server chassis cover film application device. Background Technology

[0002] As customer chassis appearance requirements become increasingly stringent, server chassis are now required to have protective films applied to their front surfaces. Sheet metal chassis are susceptible to scratches and impacts during production, transportation, and use. Without a protective film, scratches and abrasions will remain on the chassis surface, affecting the overall aesthetics and reducing the product's visual appeal and perceived quality. Currently, the application method involves one person holding both ends of a roll of film while another pulls it to adhere to the chassis cover surface. This method is slow and the application results are inconsistent.

[0003] Chinese patent document CN221738256U discloses a coating device for sheet metal processing, including a frame. The frame has evenly distributed rotating shafts rotatably connected internally. A drive motor is fixedly connected to one side of the frame's outer wall, and the output end of the drive motor passes through the frame and is fixedly connected to one of the rotating shafts. A rotating roller passes through and is fixedly connected to the outer wall of the rotating shaft. A conveyor belt is provided on the outer wall of the rotating roller. A first fixing block is fixedly connected to the top of the frame. Through the linkage between the mounting block, limiting hole, limiting groove, limiting bolt, moving block, coating roller, support shaft, support block, screw motor, second nut pair, screw, moving block, slide bar, slider, and first support frame, the height of the device can be adjusted during use, and the position of the coating roller can be adjusted according to the size of the sheet metal part.

[0004] The aforementioned patented solution uses a conveyor line to coat sheet metal workpieces. The entire coating device occupies a large volume, has a complex mechanical and electrical structure, and results in high overall construction costs. Furthermore, when applied to sheet metal workpieces with bent structures (such as server chassis cover coating), the bends on both sides create a hollow bottom structure, allowing for downward elastic deformation in the middle. Therefore, the coating roller cannot smoothly adhere the film to the surface of the sheet metal workpiece; the film often does not adhere tightly in the middle, and even air bubbles and wrinkles may appear, directly affecting the aesthetics of the sheet metal workpiece surface. Utility Model Content

[0005] To overcome the technical problem in existing technology where sheet metal workpieces with bends on both sides can experience downward elastic deformation in the middle, resulting in poor adhesion of the protective film in the middle when applying protective film to the sheet metal workpieces on the conveyor line using a film-coating roller, this utility model aims to provide a server chassis cover film-applying device. This device is suitable for manual film application to chassis covers by a single person. A column supports the rolled-up protective film, and inner and outer support blocks respectively support the middle and outer edges of the chassis cover to prevent deformation. It also includes pressure rollers for easy film application and blades for easy cutting of the protective film, improving the convenience of manual operation.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a server chassis cover film application device, comprising a base, two uprights symmetrically arranged on the base, two inner support blocks arranged on the base for supporting the middle of the chassis cover, and multiple outer support blocks arranged on the base for supporting the outer edge of the chassis cover; a roll of protective film is rotatably connected between the two uprights and located above the inner support blocks; wherein, a turntable is rotatably connected to the upper end of each upright; a first U-shaped frame is slidably connected to the two turntables; a pressure roller abutting against the upper end of the protective film is rotatably connected to the first U-shaped frame; and a blade for cutting the protective film is slidably connected to the first U-shaped frame.

[0007] The inner and outer support blocks provide support to prevent deformation of the chassis cover. The operator uses one hand to pull up the protective film and attach it to the chassis cover, then pushes the pressure roller to press the protective film firmly against the cover. While the pressure roller maintains pressure on the protective film, the sliding blade cuts the film.

[0008] Furthermore, a second U-shaped frame is rotatably connected to the first U-shaped frame; a slider is slidably connected to the second U-shaped frame; a pressure block for mounting the blade is slidably connected to the slider; the blade can be selectively located inside the slider or extend from the lower end of the slider.

[0009] When the pressure roller applies the protective film, the second U-shaped frame rotates to above the first U-shaped frame, and the blade slides into the slider under the action of gravity. This prevents the blade from scratching the protective film and the operator during the application of the protective film. After the application is completed, the second U-shaped frame is rotated downwards onto the protective film, and the pressure block is pressed down to make the blade extend from the lower end of the slider. Then, the slider is slid to cut the protective film.

[0010] Specifically, the first U-shaped frame is provided with a plurality of damping grooves evenly distributed along its sliding direction; a ball bearing that abuts against the first U-shaped frame is slidably connected to the turntable; a spring is provided between the ball bearing and the turntable; the elastic force of the spring is used to make the ball bearing slide into the damping groove directly opposite it.

[0011] Preferably, an adjusting screw is slidably connected to the turntable and threadedly connected to the turntable; the sliding direction of the adjusting screw is on the same axis as the spring force direction; the two ends of the spring abut against the end of the adjusting screw and the ball bearing, respectively.

[0012] The spring and the ball bearing enable the first U-shaped frame to maintain a certain position, ensuring a smooth cut during the cutting of the protective film; the adjusting screw can adjust the elastic force applied by the spring.

[0013] Furthermore, the pressure block is threaded with a locking screw for fixing the blade; the slider is provided with two limiting stops for limiting the sliding distance of the locking screw.

[0014] Furthermore, the ends of the two sides of the second U-shaped frame are rotatably connected to the first U-shaped frame; the slider is provided with a non-circular through hole that is slidably connected to the bottom edge of the second U-shaped frame; and the outer wall of the bottom edge is provided with a notch for restricting the rotation of the non-circular through hole.

[0015] Optionally, the upper end of the outer support block is provided with a slot with openings at both ends; the edge of the chassis cover is located inside the slot.

[0016] Optionally, the upper end of the outer support block is provided with an insertion hole; the protruding structure of the chassis cover is located inside the insertion hole; the protruding structure is a riveted part or a machined bend or other structure that protrudes from the surface of the chassis cover.

[0017] The slots and holes enable the chassis cover to be accurately positioned, preventing it from slipping during the film application process.

[0018] Furthermore, the column has a downward-sloping insertion port at one end away from the inner support block; a rotating shaft is provided between the two opposing insertion ports; a rolled protective film is disposed on the outer periphery of the rotating shaft; retaining rings are detachably connected to both ends of the protective film on the rotating shaft; the insertion port facilitates the replacement of the protective film.

[0019] Preferably, the upper end of the base is provided with a plurality of evenly distributed array holes.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model is suitable for single-person manual film application to machine casing covers. It has a simple and compact structure, occupies little space, has low manufacturing cost, is easy to operate manually, reduces manual labor intensity, and improves film application efficiency.

[0022] 2. This utility model is specifically designed for sheet metal chassis covers with protruding riveted parts or bent edges. The inner and outer support blocks provide stable support for the chassis cover, especially the inner top of the chassis cover, to prevent displacement or central deformation of the chassis cover during the film coating process. This ensures that the protective film adheres smoothly to the surface of the chassis cover, reduces the generation of bubbles and wrinkles, and improves the quality and aesthetics of the film coating.

[0023] 3. This utility model also includes a pressure roller for pressing the mold and a blade for cutting the film. The pressure roller makes it easy for the protective film to be pressed flat on the surface of the machine cover by hand. While keeping the protective film pressed, the sliding blade cuts the protective film, making the cut of the protective film flat. The cutting process will not stretch the protective film, preventing the rolled protective film from being stretched too much and curling up. It also prevents the protective film on the surface of the machine cover from wrinkling due to stretching.

[0024] 4. In this utility model, the second U-shaped frame flips to the top of the first U-shaped frame, and the blade slides into the slider under the action of gravity to prevent accidental cuts. After the second U-shaped frame is flipped downward, the sliding pressure block drives the blade to slide out of the slider and horizontally cut the protective film. It is simple to use and highly safe. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the film application process of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the first U-shaped frame and the second U-shaped frame of this utility model;

[0028] Figure 4 This is a schematic diagram of the slider and pressure block of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the turntable of this utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the rotating shaft of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure during the film cutting process of this utility model.

[0032] In the diagram: 1. Base; 11. Column; 111. Angled insertion port; 21. Inner support block; 22. Outer support block; 221. Insertion hole; 222. Slot; 31. Turntable; 32. First U-shaped frame; 321. Damping groove; 33. Pressure roller; 34. Ball bearing; 35. Spring; 36. Adjusting screw; 41. Rotating shaft; 42. Retaining ring; 51. Second U-shaped frame; 511. Notch; 52. Slider; 521. Non-circular through hole; 522. Limiting stop; 53. Pressure block; 54. Blade; 55. Locking screw; 6. Protective film; 7. Chassis top cover. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0034] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] See Figures 1-7A server chassis cover film application device includes a base 1, two uprights 11 symmetrically arranged on the upper end of the base 1, two inner support blocks 21 arranged on the base 1 for supporting the middle of the chassis cover 7, and a plurality of outer support blocks 22 arranged on the base 1 for supporting the outer edge of the chassis cover 7. Three longitudinally arranged, downwardly inclined slots 111 are provided at one end of the uprights 11 away from the inner support blocks 21; a rotating shaft 41 is arranged between two opposite slots 111; a rolled protective film 6 is disposed on the outer periphery of the rotating shaft 41; retaining rings 42 are detachably connected to both ends of the protective film 6 on the rotating shaft 41; the protective film 6 is located above the inner support blocks 21.

[0038] A turntable 31 is rotatably connected to the upper end of the column 11 facing the protective film 6; a first U-shaped frame 32 is slidably connected to the two turntables 31; a pressure roller 33, which abuts against the upper end of the protective film 6, is rotatably connected to the opening of the first U-shaped frame 32 near the inner support block 21. A second U-shaped frame 51 is rotatably connected to the end of the first U-shaped frame 32 near the inner support block 21; the rotation axis of the second U-shaped frame 51 is coaxial with the rotation axis of the pressure roller 33.

[0039] The ends of the two sides of the second U-shaped frame 51 are rotatably connected to the first U-shaped frame 32 respectively; the bottom edge of the second U-shaped frame 51 is slidably connected to a slider 52 along the length direction; a pressure block 53 is slidably connected to the slider 52; a blade 54 is installed on the pressure block 53; the sliding direction of the pressure block 53 is perpendicular to the sliding direction of the slider 52; the blade 54 can be selectively located inside the slider 52 or extend from the lower end of the slider 52.

[0040] The slider 52 is provided with a non-circular through hole 521 that is slidably connected to the bottom edge of the second U-shaped frame 51; the outer wall of the bottom edge is provided with a notch 511 for restricting the rotation of the non-circular through hole 521. The pressure block 53 is threadedly connected with a locking screw 55 for fixing the blade 54; the slider 52 is provided with two limiting stops 522 for limiting the sliding distance of the locking screw 55.

[0041] The first U-shaped frame 32 is provided with a plurality of damping grooves 321 evenly distributed along its sliding direction; a ball bearing 34 is slidably connected to the turntable 31 and abuts against the side of the first U-shaped frame 32; a spring 35 is provided between the ball bearing 34 and the turntable 31; the elastic force of the spring 35 is used to make the ball bearing 34 slide into the damping groove 321 directly opposite it. An adjusting screw 36 is slidably connected to the turntable 31 and threadedly connected to the turntable 31; the sliding direction of the adjusting screw 36 is on the same axis as the elastic force direction of the spring 35; the two ends of the spring 35 abut against the end of the adjusting screw 36 and the ball bearing 34, respectively.

[0042] The base 1 has a plurality of evenly distributed array holes on its upper end; the inner support block 21 and the outer support block 22 are flexibly adjusted and installed according to the specific shape of the chassis cover 7; the outer support block 22 has a slot 222 with openings at both ends on its upper end; the edge of the chassis cover 7 is located within the slot 222. In other embodiments, the outer support block 22 may also have an insertion hole 221 on its upper end; the protruding structure of the chassis cover 7 may be located within the insertion hole 221; the protruding structure may be a riveted part or a machined bend that protrudes from the surface of the chassis cover 7.

[0043] Usage: Align the outer edge of the chassis cover 7 with the slot 222 on the outer support block 22, or align its protruding structure with the insertion hole 221 on the outer support block 22. Snap the chassis cover 7 onto the base 1, with the inner support block 21 abutting against the inner top of the chassis cover 7. Pull out the protective film 6, allowing it to pass under the pressure roller 33. Attach the end of the protective film 6 to the end of the chassis cover 7 furthest from the column 11. The weight of the pressure roller 33 causes the protective film 6 to dip downwards, providing a certain tension and improving the flatness and aesthetics of the protective film.

[0044] Subsequently, keeping the second U-shaped frame 51 above the first U-shaped frame 32, the pressure block 53 slides along the slider 52 under gravity, so that the blade 54 is located inside the pressure block 53 to prevent scratches. The pressure roller 33 is rolled from the end away from the column 11 to the other end closer to the column 11 to complete the application of the protective film 6. Keeping the pressure roller 33 and the outer support block 22 pressing the protective film 6 tightly, the second U-shaped frame 51 is rotated downward so that the slider 52 abuts against the upper end of the protective film 6. The pressure block 53 is pressed down to extend the blade 54 downward, while the slider 52 is slid to cut the protective film 6 with the blade 54, completing the film application process for one chassis cover 7.

[0045] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A server chassis cover film application device, characterized in that: The device includes a base, two uprights symmetrically arranged on the base, two inner support blocks arranged on the base to support the middle of the chassis cover, and multiple outer support blocks arranged on the base to support the outer edge of the chassis cover. A roll of protective film is rotatably connected between the two uprights and located above the inner support blocks. A turntable is rotatably connected to the upper end of each upright. A first U-shaped frame is slidably connected to the two turntables. A pressure roller that abuts against the upper end of the protective film is rotatably connected to the first U-shaped frame. A blade for cutting the protective film is slidably connected to the first U-shaped frame.

2. The film-applying device as described in claim 1, characterized in that: A second U-shaped frame is rotatably connected to the first U-shaped frame; a slider is slidably connected to the second U-shaped frame; a pressure block for mounting the blade is slidably connected to the slider; the blade can be selectively located inside the slider or extend from the lower end of the slider.

3. The film-applying device as described in claim 2, characterized in that: The first U-shaped frame is provided with a plurality of damping grooves evenly distributed along its sliding direction; a ball bearing is slidably connected to the turntable and abuts against the first U-shaped frame; a spring is provided between the ball bearing and the turntable; the elastic force of the spring is used to make the ball bearing slide into the damping groove directly opposite it.

4. The film-applying device as described in claim 3, characterized in that: An adjusting screw is slidably connected to the turntable and threadedly connected to the turntable; the sliding direction of the adjusting screw is on the same axis as the spring force direction; the two ends of the spring abut against the end of the adjusting screw and the ball respectively.

5. The film application device as described in any one of claims 2-4, characterized in that: The pressure block is threaded with a locking screw for fixing the blade; the slider is provided with two limiting stops for limiting the sliding distance of the locking screw.

6. The film application device as described in any one of claims 2-4, characterized in that: The ends of the two sides of the second U-shaped frame are rotatably connected to the first U-shaped frame; the slider is provided with a non-circular through hole that is slidably connected to the bottom edge of the second U-shaped frame; the outer wall of the bottom edge is provided with a notch for restricting the rotation of the non-circular through hole.

7. The film application device as described in any one of claims 1-4, characterized in that: The upper end of the outer support block is provided with a slot with openings at both ends; the edge of the chassis cover is located inside the slot.

8. The film application device as described in any one of claims 1-4, characterized in that: The upper end of the outer support block is provided with an insertion hole; the protruding structure of the chassis cover is located inside the insertion hole.

9. The film application device as described in any one of claims 1-4, characterized in that: The column has a downward-sloping insertion port at one end away from the inner support block; a rotating shaft is provided between two opposite insertion ports; a rolled protective film is provided on the outer periphery of the rotating shaft; retaining rings are detachably connected to both ends of the protective film on the rotating shaft.

10. The film-applying device as described in any one of claims 1-4, characterized in that: The upper end of the base is provided with a plurality of evenly distributed array holes.

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