LED unit panel mask rolling jig

Abstract

The utility model provides a kind of LED unit board face mask rolling press tool, its base is equipped with placing groove, for carrying unit board;Slide rail is equipped in the both sides of base, the support of rolling press mechanism is connected with slide rail, cylinder rolls are equipped on support, and cylinder rolls are rolled to unit board, and annular pressing strip is equipped on cylinder with interval;Placing groove is equipped with movable support unit, movable support unit is at least distributed in the middle of placing groove, and it plays a supporting role to the bottom of unit board.The tool is added adjustable movable support unit, realizes the supporting effect to unit board, and in the case of deformation in long time processing, the recessed part can be adjusted to movable support unit, avoid affecting rolling press processing, so that face mask and the clamping groove on PCBA are pressed in place;Further to the design of movable support unit, realize the targeted adjustment of recess, simplify the overall structure of equipment, convenient operation, low manufacturing cost, good processing quality, high finished product qualification rate, conducive to the popularization and application of product.

Description

Technical Field

[0001] This utility model belongs to the field of LED processing fixture technology, and in particular relates to an LED unit board cover rolling fixture. Background Technology

[0002] Existing LED displays are assembled from modules (LED unit boards), each module consisting of a base shell, a PCBA, and a face mask. Currently, indoor products use face masks with snap-fit ​​mechanisms. This means the face mask is fixed to the PCBA by pressing the snaps on the face mask into the slots between the LED tubes on the PCBA using a rolling face mask fixture. The fixture supports the module (the PCBA and base shell are already locked together), and has several support bosses at its bottom for supporting the module. Rollers are then used to roll and assemble the face mask and module. The applicant previously disclosed CN 206510447U, a face mask pressing fixture for LED modules, which solves the problems of poor uniformity and uneven black color display in existing face mask pressing methods. The assembly fixture includes an LED module placement unit, a motion unit, and a rolling unit. The LED module placement unit includes a base with an LED module placement area on its upper part. The motion unit includes a slide rail and a slider. The slide rail is fixed to both sides of the upper surface of the base, and the slider is mounted on the slide rail and can move along it. The rolling unit includes a roller and a roller bracket. The roller is installed inside the roller bracket, and both ends of the roller bracket are fixed to the slider. The surface of the roller has LED light clearance grooves and pressure strips. However, existing assembly fixtures have at least one of the following problems:

[0003] ① Fixture Deformation: The face mask is assembled by manually pushing the rollers, resulting in uneven force on the entire fixture. After repeated use, the middle of the fixture is prone to sinking and becoming uneven. The support boss on the fixture is integrally formed with the fixture, and the support height cannot be adjusted, causing the face mask to not be pressed into place at the sunken position in the middle of the fixture.

[0004] ② Module deformation: During the production process, PCBA may deform along the long side, with both ends lifting up and the middle concave. This can cause the mask at the concave position to not be pressed into place with the PCBA. In addition, during the rolling process, the two ends of the module will tilt back and forth, which can easily damage the lamp tubes on the module and cause dead lamps. Utility Model Content

[0005] This invention provides a rolling fixture for LED unit board covers, which can effectively solve the above problems.

[0006] This utility model is implemented as follows:

[0007] An LED unit panel cover rolling fixture includes a base, slide rails, and a rolling mechanism. The base has a placement groove for supporting the unit panel. The slide rails are located on both sides of the base of the placement groove. The rolling mechanism includes a bracket and a roller. The bracket spans the placement groove and is connected to the sliders of the slide rails on both sides. The roller is rolled on the bracket and rolls the unit panel. The roller has annular pressure strips spaced apart. The placement groove has movable support units, which are at least distributed in the middle of the placement groove and provide support for the bottom of the unit panel.

[0008] As a further improvement, the movable support unit is provided with a nut and a stud. The nut is at least distributed in the middle of the placement groove and penetrates the base. The stud is located inside the nut and is an internal hexagonal stud.

[0009] As a further improvement, the movable support unit is provided with a slide groove, a sliding block and an adjusting column. The slide groove is arranged in the placement groove along the direction of roller movement. There is at least one slide groove. Several adjusting blocks 44 and adjusting columns are provided in the slide groove 43. The slide groove passes through the base. The sliding block is arranged on the slide groove. The sliding block is provided with a screw hole. The adjusting column is threadedly connected to the screw hole.

[0010] As a further improvement, the stud or adjusting post of the movable support unit is provided with an elastic support member at its front end.

[0011] As a further improvement, the placement slot is provided with a positioning mechanism on the side perpendicular to the direction of movement. The positioning mechanism is provided with a positioning slot, a positioning block and a compression spring. The positioning slot is located on one side of the placement slot, the positioning block is located in the positioning slot, and the compression spring is located between the positioning block and the positioning slot, so that the positioning block moves toward the placement slot.

[0012] As a further improvement, the placement slot is provided with a limiting mechanism at the front and rear ends along the direction of movement. The limiting mechanism is provided with a limiting groove, a limiting block and a return spring. The limiting groove is provided at the front and rear ends of the placement slot. The limiting block is provided with a limiting plate on the side near the placement slot. The return spring causes the limiting block to move toward the placement slot, so that the limiting plate is engaged in the aging groove on the side of the unit board.

[0013] As a further improvement, the limiting block is a limiting box, the limiting box is provided with a limiting hole and an operating hole, one end of the limiting plate is provided with an operating plate, the limiting plate is located inside the limiting box and the operating plate is located inside the pressing hole, the limiting plate extends out of the limiting hole, and the reset spring is located inside the limiting box and connected to the limiting plate, so that the limiting plate extends out of the limiting hole.

[0014] As a further improvement, a roller frame, a connecting column, and a handle are provided between the roller and the support. The upper end face of the support is provided with a pressing hole. The roller is placed on the roller frame. The connecting column passes through the operating hole and is connected to the roller frame. The handle is connected to the other end of the connecting column.

[0015] As a further improvement, the slide rail is provided with limit rods at its front and rear ends.

[0016] As a further improvement, the placement slot on the opposite side of the positioning mechanism is provided with a plate-retrieving slot.

[0017] The beneficial effects of this utility model are as follows: By adding an adjustable movable support unit, the fixture can support the unit board. In the event of deformation during long-term processing, the movable support unit can be adjusted specifically for the recessed parts to avoid affecting the rolling process and ensure that the mask is pressed into place with the slot on the PCBA. Furthermore, the design of the movable support unit enables targeted adjustment of the recessed parts, simplifies the overall structure of the equipment, makes it easy to operate, reduces manufacturing costs, improves processing quality, and increases the finished product qualification rate, which is conducive to the promotion and application of the product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the usage state provided by an embodiment of the LED unit board cover rolling fixture of this utility model;

[0020] Figure 2 This is a cross-sectional view provided by an embodiment of an LED unit board cover rolling fixture of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the structure of an embodiment of an LED unit board cover rolling fixture provided by this utility model;

[0023] Figure 5 yes Figure 4 Enlarged structural diagram at point B;

[0024] Figure 6 This is a schematic diagram of the structure of the movable support unit provided in an embodiment of the LED unit board cover rolling fixture of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the movable support unit provided in another embodiment of the LED unit board cover rolling fixture of this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the movable support unit provided in another embodiment of the LED unit board cover rolling fixture of this utility model;

[0027] Figure 9 This is a schematic diagram of the limiting mechanism provided in an embodiment of the LED unit board cover rolling fixture of this utility model;

[0028] Figure 10 This is a schematic diagram of the limiting mechanism provided in another embodiment of the LED unit board cover rolling fixture of this utility model.

[0029] Figure label:

[0030] Base 1; Placement slot 11; Slide rail 2; Rolling mechanism 3; Bracket 31; Pressing hole 311; Roller 32; Annular pressure strip 321; Roller frame 33; Connecting column 34; Handle 35; Plate taking slot 36; Movable support unit 4; Nut 41; Stud 42; Slide groove 43; Sliding block 44; Adjusting column 45; Positioning mechanism 5; Positioning groove 51; Positioning block 52; Compression spring 53; Limiting mechanism 6; Limiting groove 61; Limiting block 62; Reset spring 63; Limiting plate 64; Limiting hole 65; Operating hole 66; Operating plate 67; Unit plate 7. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0032] In the description of this utility model, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this utility model, the terms "upper", "middle", "side", "side", "upper side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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. Therefore, they should not be construed as limitations on this utility model.

[0034] Reference Figure 1-10 As shown, an LED unit panel cover rolling fixture includes a base 1, a slide rail 2, and a rolling mechanism 3. The base 1 is provided with a placement groove 11 for supporting the unit panel 7. The slide rail 2 is located on both sides of the base 1 of the placement groove 11. The rolling mechanism 3 is provided with a bracket 31 and a roller 32. The bracket 31 spans the placement groove 11 and is connected to the sliders of the slide rails 2 on both sides. The roller 32 is rolled on the bracket 31 and rolls the unit panel 7. The roller 32 is provided with annular pressure strips 321 at intervals. The placement groove 11 is provided with movable support units 4. The movable support units 4 are at least distributed in the middle of the placement groove 11 and provide support for the bottom of the unit panel 7.

[0035] During processing, the PCBA and base shell, already locked together, are placed in the placement slot 11. The movable support unit 4 is adjusted to provide support for the unit board 7. Then, the rolling unit is operated to move along the slide rail 2 to roll the cover, pressing the clips on the cover into the slots between the lamps on the PCBA for fixation. Under prolonged operation, the fixture may deform, especially causing a depression in the middle of the placement slot 11. This prevents the unit board 7 from being supported during rolling, and the cover clips cannot engage properly with the slots on the PCBA, resulting in defective products. In this case, the movable support unit 4 is adjusted again to restore support.

[0036] During normal use, the movable support unit 4 is at a uniform height. When the rolling mask is found to be partially not pressed into place, the height of the movable support unit 4 on the back of the fixture is adjusted to support the recessed area, which can be easily and quickly adjusted.

[0037] Furthermore, the movable support unit 4 is provided with a nut 41 and a stud 42. The nut 41 is at least distributed in the middle of the placement groove 11 and penetrates the base 1. The stud 42 is located inside the nut 41 and is an internal hexagon stud.

[0038] Nuts 41 and studs 42 are provided at the locations where support is required. Nuts 41 are provided at locations where deformation is possible, and studs 42 are provided to provide support in the event of deformation.

[0039] Furthermore, the movable support unit 4 is provided with a sliding groove 43, a sliding block 44 and an adjusting column 45. The sliding groove 43 is arranged in the placement groove 11 along the movement direction of the roller 32. There is at least one sliding groove 43. Several adjusting blocks 44 and adjusting columns 45 are provided in the sliding groove 43. The sliding groove 43 passes through the base 1. The sliding block 44 is arranged on the sliding groove 43. The sliding block 44 is provided with a screw hole. The adjusting column 45 is threadedly connected to the screw hole.

[0040] By using a combination of groove 43, sliding block 44 and adjusting column 45, the support position can be adjusted more precisely and the recessed position can be corrected.

[0041] Furthermore, the stud 42 or adjusting post 45 of the movable support unit is provided with an elastic support member (not shown) at its front end.

[0042] The elastic support can be made of elastic plastic, spring, sheet metal, etc., to provide elastic support and prevent rigid support from damaging the unit plate 7.

[0043] Furthermore, the placement groove 11 is provided with a positioning mechanism 5 on the side perpendicular to the direction of movement. The positioning mechanism 5 is provided with a positioning groove 51, a positioning block 52 and a compression spring 53. The positioning groove 51 is located on one side of the placement groove 11, the positioning block 52 is located in the positioning groove 51, and the compression spring 53 is located between the positioning block 52 and the positioning groove 51, so that the positioning block 52 moves toward the placement groove 11.

[0044] The positioning mechanism 5 pushes the unit plate 7 toward one side of the placement groove 11 through the positioning block 52, so that the roller 32 corresponds to the mask position.

[0045] Furthermore, the placement groove 11 is provided with a limiting mechanism 6 at its front and rear ends along the direction of movement. The limiting mechanism 6 is provided with a limiting groove 61, a limiting block 62 and a return spring 63. The limiting groove 61 is provided at the front and rear ends of the placement groove 11. The limiting block 62 is provided with a limiting plate 64 on the side near the placement groove 11. The return spring 63 causes the limiting block 62 to move toward the placement groove 11, so that the limiting plate 64 is engaged in the aging groove on the side of the unit plate 7.

[0046] Limiting mechanisms 6 are respectively set on the left and right sides (short sides of the module) of the fixture. (Limiting mechanisms 6 are equipped with spring structures. They pop out in the natural state. When assembling unit board 7, the limit plate 64 is pulled outward by hand. After the unit board 7 is placed in, the hand is released and the limit plate 64 returns to its original position, thus fixing the unit board 7.) A limit plate 64 extends from the side of the limit block 62. The aging groove on the side of the bottom shell of the unit board 7 (used to be inserted into the aging rack during product aging) is used to lock the limit plate 64 of the limiting mechanism 6 into the aging groove of the bottom shell. When in use, first put the unit board 7 into the fixture placement slot 11, press or move the button of the limiting mechanism 6, then flatten the right side of the unit board 7 and release the button at the same time. The limit plate 64 extends out and locks the aging groove of the unit board 7. The same operation is performed to limit the left side of the unit board 7, that is, to correct the warping of the PCBA.

[0047] Furthermore, the limiting block 62 is a limiting box, which is provided with a limiting hole 65 and an operating hole 66. One end of the limiting plate 64 is provided with an operating plate 67. The limiting plate 64 is located inside the limiting box, and the operating plate 67 is located inside the operating hole 66. The limiting plate 64 extends out of the limiting hole 65. The reset spring 63 is located inside the limiting box and connected to the limiting plate 64, so that the limiting plate 64 extends out of the limiting hole 65.

[0048] By pressing or pushing the operating plate 67 outward, the limiting plate 64 retracts into the limiting box, and the limiting plate 64 is released to pop out the limiting hole 65, thereby achieving the engagement of the limiting plate 64 with the aging tank.

[0049] Furthermore, a roller frame 33, a connecting column 34, and a handle 35 are provided between the roller 32 and the support 31. The upper end face of the support 31 is provided with a pressing hole 311. The roller 32 is mounted on the roller frame 33. The connecting column 34 passes through the pressing hole 311 and is connected to the roller frame 33. The handle 35 is connected to the other end of the connecting column 34.

[0050] By pressing down on the handle 35, the connecting column 34 moves downward, causing the roller 32 to press downward. The handle 35 also serves as a handle to push the support 31 forward.

[0051] Furthermore, the slide rail 2 is provided with limiting rods (not shown) at its front and rear ends.

[0052] The limiting rod restricts the movement within the slide rail 2. The limiting rod can take many forms, such as bolts, limiting protrusions, insert rods, limiting plates, etc.

[0053] Furthermore, the placement groove 11 on the opposite side of the positioning mechanism 5 is provided with a plate-retrieving groove 36.

[0054] The board retrieval slot 36 facilitates the removal of the unit board 7 from the placement slot 11.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An LED unit panel mask rolling jig, characterized by The device includes a base, slide rails, and a rolling mechanism. The base has a placement groove for supporting unit panels. The slide rails are located on the base on both sides of the placement groove. The rolling mechanism includes a bracket and a roller. The bracket spans the placement groove and is connected to the sliders of the slide rails on both sides. The roller is rolled on the bracket and rolls the unit panels. The roller has annular pressure strips spaced apart on it. The placement groove has movable support units, which are distributed at least in the middle of the placement groove to support the bottom of the unit panels.

2. The LED unit panel cover rolling tool according to claim 1, wherein The movable support unit is provided with a nut and a stud. The nut is at least distributed in the middle of the placement groove and penetrates the base. The stud is located inside the nut and is an internal hexagonal stud.

3. The LED unit board cover rolling tool according to claim 1, wherein The movable support unit is provided with a sliding groove, a sliding block and an adjusting column. The sliding groove is arranged in the placement groove along the direction of roller movement. There is at least one sliding groove. Several adjusting blocks and adjusting columns are provided in the sliding groove. The sliding groove passes through the base. The sliding block is arranged on the sliding groove. The sliding block is provided with a screw hole. The adjusting column is threadedly connected to the screw hole.

4. The LED unit panel cover rolling tool according to claim 2 or 3, wherein The stud or adjusting column of the movable support unit is provided with an elastic support at its front end.

5. The LED unit panel cover rolling tool according to claim 1, 2 or 3, wherein, The placement slot is provided with a positioning mechanism on one side perpendicular to the direction of movement. The positioning mechanism includes a positioning slot, a positioning block and a compression spring. The positioning slot is located on one side of the placement slot, the positioning block is located inside the positioning slot, and the compression spring is located between the positioning block and the positioning slot, so that the positioning block moves toward the placement slot.

6. The LED unit panel cover rolling tool according to claim 1, 2 or 3, wherein, The placement slot is provided with a limiting mechanism at the front and rear ends along the direction of movement. The limiting mechanism is provided with a limiting groove, a limiting block and a return spring. The limiting groove is provided at the front and rear ends of the placement slot. The limiting block is provided with a limiting plate on the side near the placement slot. The return spring causes the limiting block to move toward the placement slot, so that the limiting plate is engaged in the aging groove on the side of the unit board.

7. The LED unit board cover rolling tool according to claim 6, wherein The limiting block is a limiting box, which has a limiting hole and an operating hole. One end of the limiting plate has an operating plate. The limiting plate is located inside the limiting box, and the operating plate is located inside the operating hole. The limiting plate extends out of the limiting hole. The reset spring is located inside the limiting box and connected to the limiting plate, so that the limiting plate extends out of the limiting hole.

8. The LED unit board cover rolling tool according to claim 1, wherein A roller frame, a connecting column, and a handle are provided between the roller and the support. The upper end face of the support is provided with a pressing hole. The roller is placed on the roller frame. The connecting column passes through the pressing hole and is connected to the roller frame. The handle is connected to the other end of the connecting column.

9. The LED unit board cover rolling tool according to claim 1, wherein Limiting rods are provided at the front and rear ends of the slide rail.

10. The LED unit board cover rolling tool according to claim 5, wherein The placement slot on the opposite side of the positioning mechanism is provided with a plate retrieval slot.

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