An ultra-thin flat panel backlight panel segmented flattening device

Abstract

The utility model discloses a kind of ultra-thin flat plate backlight segmented type leveling device, comprising: stand and transmission roller, the inside of the stand is rotatably provided with several transmission rollers from left to right;The front side of the stand is fixedly provided with shell;The front side of the transmission roller extends into the inner chamber of the shell and is keyed with first gear;Leveling limiting mechanism is arranged at the top side of the stand;Secondary leveling mechanism is arranged at the other side of the top of the stand.Ultra-thin flat plate backlight segmented type leveling device, adopts segmented type leveling structure of preliminary leveling and secondary leveling, preliminary flattening and position correction to backlight are realized by leveling limiting mechanism, then accurate pressurizing leveling is carried out by secondary leveling mechanism, and double procedure effectively eliminates the deformation problems such as bending, edge lifting of backlight.

Description

Technical Field

[0001] This utility model relates to the technical field of backlight panel processing equipment, specifically to a segmented leveling device for ultra-thin flat backlight panels. Background Technology

[0002] As one of the core components of display devices, the surface flatness of ultra-thin flat backlight panels directly affects the display effect and product qualification rate. During the production and processing of backlight panels, due to factors such as raw material characteristics, cutting process, transportation and stacking, slight bending, warping, or uneven surface deformation problems are very likely to occur. If these deformation problems are not effectively corrected, they will lead to defects such as loose bonding, uneven light refraction, and display ghosting in the subsequent assembly process, which will seriously affect the quality of the end product. Existing backlight panel leveling equipment mostly adopts a single roller pressing structure, and the leveling method is relatively simple. It can only achieve single-pass leveling. For backlight panels with large deformation or irregular deformation, it is difficult to achieve high-precision leveling requirements. It lacks an effective limiting and guiding mechanism, and the backlight panel is prone to deviation during the conveying process, resulting in uneven leveling force and further affecting the leveling effect. Utility Model Content

[0003] The purpose of this utility model is to provide a segmented leveling device for ultra-thin flat backlight panels, so as to solve the problems in the prior art that it is difficult to achieve high-precision leveling requirements, lack effective limiting and guiding mechanisms, and affect the leveling effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a segmented leveling device for an ultra-thin flat panel backlight, comprising: Erecting the frame; The inner side of the upright frame is provided with several drive rollers that rotate from left to right. The housing is fixedly installed on the front side of the support frame; The first gear is connected to the front side of the transmission roller, which extends into the inner cavity of the housing. The second gear, a plurality of second gears are rotatably arranged from left to right at the bottom of the inner cavity of the housing, and the second gears mesh with the first gear in sequence; A geared motor is fixedly mounted at one end of the front side of the housing, and the output end of the geared motor extends into the inner cavity of the housing and is fixedly connected to one end of one of the second gears; A leveling and limiting mechanism is installed on one side of the top of the upright frame; The secondary leveling mechanism is located on the other side of the top of the upright.

[0005] Preferably, the leveling and limiting mechanism includes: a support frame, with support frames fixedly installed on both the front and rear sides of the top of the support frame; a support plate inserted into the inner side of the support frame, with limiting grooves opened on both the left and right sides of the inner cavity of the support frame along the vertical direction, and the two ends of the support plate being adapted to be inserted into the inner cavity of the limiting groove; a screw threaded to the top of the support frame, and the bottom end of the screw extending into the inner side of the support frame and rotatably connected to the top of the support plate through a bearing; a rotating handle fixedly installed at the top of the screw; and a plurality of first leveling rollers rotatably installed on the inner side of the support plate along the left and right direction, with the first leveling rollers located between two adjacent transmission rollers.

[0006] Preferably, the leveling and limiting mechanism further includes: a fixing plate, which is fixedly disposed on one side of the support frame; a guide rod is fixedly disposed between the two fixing plates; limiting plates are sleeved on both the front and rear sides of the outer wall of the guide rod; bolts are screwed to the top of the limiting plates, and the bottom of the bolts are tightly attached to the outer wall of the guide rod.

[0007] Preferably, the bottom end of the limiting plate extends between the two drive rollers.

[0008] Preferably, the secondary leveling mechanism includes: a housing, which is fixedly mounted on the other side of the top of the upright; first sliding grooves are formed on both the front and rear sides and the left and right ends of the inner cavity of the housing along the vertical direction, and a first slider is inserted into the inner cavity of the first sliding groove; a fixed frame is fixedly mounted on the inner side of the first slider; a hydraulic cylinder is fixedly mounted on the top of the housing, and the driving end of the hydraulic cylinder extends into the inner cavity of the housing and is fixedly mounted on the top of the fixed frame; a plurality of second sliding grooves are formed on the inner side of the fixed frame along the vertical direction from left to right, and a second slider is inserted into the inner cavity of the second sliding groove; a second leveling roller is rotatably mounted on the inner side of the second slider, and the second leveling roller is located between two adjacent drive rollers; a spring is fixedly mounted between the top of the inner cavities of the second slider and the second sliding groove.

[0009] Preferably, the second slider contacts the bottom end of the inner cavity of the second groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This segmented leveling device for ultra-thin flat backlight panels adopts a segmented leveling structure with preliminary leveling and secondary leveling. The initial flattening and position correction of the backlight panel is achieved through the leveling limiting mechanism, and then the precise pressure leveling is performed through the secondary leveling mechanism. The dual process effectively eliminates deformation problems such as bending and warping of the backlight panel, greatly improves the leveling accuracy and surface flatness, and meets the high-precision production requirements of ultra-thin flat backlight panels. The guide rod, limiting plate and bolts in the leveling limiting mechanism can flexibly adjust the position of the limiting plate and lock it in place according to the width of the backlight panel. The backlight panel is precisely limited and corrected in position during the conveying process, avoiding uneven leveling force caused by backlight panel deviation, ensuring that all areas can be leveled evenly, and ensuring the consistency of the leveling effect of products in mass production. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the leveling and limiting mechanism of this utility model; Figure 3 This is a right-side sectional view of the casing of this utility model; Figure 4 This is a left-side sectional view of the casing of this utility model.

[0012] Explanation of reference numerals in the attached drawings: 1. Frame, 2. Transmission roller, 3. Housing, 4. First gear, 5. Second gear, 6. Gear reducer, 7. Leveling and limiting mechanism, 71. Support frame, 72. Support plate, 73. Limiting groove, 74. Screw, 75. Rotary handle, 76. First leveling roller, 77. Fixing plate, 78. Guide rod, 79. Limiting plate, 710. Bolt, 8. Secondary leveling mechanism, 81. Machine housing, 82. First slider, 83. First slide groove, 84. Fixing frame, 85. Hydraulic cylinder, 86. Second slider, 87. Second slide groove, 88. Second leveling roller, 89. Spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a technical solution: a segmented leveling device for an ultra-thin flat backlight panel, comprising: a support frame 1, a transmission roller 2, a housing 3, a first gear 4, a second gear 5, a reduction motor 6, a leveling limiting mechanism 7, and a secondary leveling mechanism 8; Several transmission rollers 2 are rotatably arranged on the inner side of the support frame 1 from left to right. The backlight panel to be leveled is placed on one of the transmission rollers 2. A housing 3 is fixedly arranged on the front side of the support frame 1. The front side of the transmission roller 2 extends into the inner cavity of the housing 3 and is keyed to a first gear 4. Several second gears 5 are rotatably arranged on the bottom end of the inner cavity of the housing 3 from left to right, and the second gears 5 mesh with the first gears 4 in sequence. A reduction motor 6 is fixedly arranged on one end of the front side of the housing 3, and the output end of the reduction motor 6 extends into the inner cavity of the housing 3 and is fixedly connected to one end of one of the second gears 5. The reduction motor 6 is existing technology. After the reduction motor 6 is started, it can drive the second gear 5 to rotate counterclockwise. Thus, under the meshing action of the second gear 5 and the first gear 4, the multiple first gears 4 drive the transmission rollers 2 to rotate clockwise synchronously. The leveling limit mechanism 7 is arranged on one side of the top of the support frame 1, and the secondary leveling mechanism 8 is arranged on the other side of the top of the support frame 1.

[0015] As a preferred embodiment, the leveling and limiting mechanism 7 further includes: a support frame 71, a support plate 72, a limiting groove 73, a screw 74, a rotating handle 75, a first leveling roller 76, a fixing plate 77, a guide rod 78, a limiting plate 79, and a bolt 710. To perform initial leveling of the backlight panel, support frames 71 are fixedly installed on both the front and rear sides of the top of the support frame 1. Support plates 72 are inserted into the inner side of the support frames 71. Limiting grooves 73 are opened on both the left and right sides of the inner cavity of the support frame 71 in the vertical direction. The two ends of the support plates 72 are adapted to be inserted into the inner cavity of the limiting grooves 73. The screw 74 is screwed to the top of the support frame 71, and the bottom end of the screw 74 extends into the inner side of the support frame 71 and is rotatably connected to the top of the support plate 72 through a bearing. The rotating handle 75 is fixedly installed on the top of the screw 74. Rotating the rotating handle 75 drives the screw 74 to rotate, thereby driving the support plate 72 to move up and down under the restriction of the limiting grooves 73. Several first leveling rollers 76 are rotatably installed on the inner side of the support plate 72 in the left and right direction. The first leveling rollers 76 are located between two adjacent transmission rollers 2. After adjusting the height of the first leveling rollers 76, the backlight panel will be leveled by force when passing between the transmission rollers 2 and the first leveling rollers 76.

[0016] In order to limit the backlight panel conveyed on the transmission roller 2, a fixed plate 77 is fixedly installed on one side of the support frame 71, and a guide rod 78 is fixedly installed between the two fixed plates 77. Limiting plates 79 are sleeved on both the front and rear sides of the outer wall of the guide rod 78. The guide rod 78 can limit the movement of the limiting plate 79. The bolt 710 is screwed to the top of the limiting plate 79, and the bottom end of the bolt 710 is close to the outer wall of the guide rod 78. The limiting plate 79 can be locked and fixed on the guide rod 78 by the bolt 710. By moving and fixing the position of the limiting plate 79, the position of the backlight panel passing through the inner side of the limiting plate 79 is corrected to ensure that the backlight panel is accurately leveled.

[0017] As a preferred embodiment, the bottom end of the limiting plate 79 extends between the two drive rollers 2, so that the backlight plate transmitted on the drive rollers 2 can move between the two limiting plates 79.

[0018] As a preferred embodiment, the secondary leveling mechanism 8 further includes: a housing 81, a first slider 82, a first slide groove 83, a fixing frame 84, a hydraulic cylinder 85, a second slider 86, a second slide groove 87, a second leveling roller 88, and a spring 89. To enable secondary leveling of the backlight panel, the housing 81 is fixedly mounted on the other side of the top of the support frame 1. The inner cavity of the housing 81 has first sliding grooves 83 on both the front and rear sides and the left and right ends, arranged vertically. A first slider 82 is inserted into the inner cavity of the first sliding groove 83. A fixing frame 84 is fixedly mounted inside the first slider 82. A hydraulic cylinder 85 is fixedly mounted on the top of the housing 81, with its driving end extending into the inner cavity of the housing 81 and fixedly mounted on the top of the fixing frame 84. The hydraulic cylinder 85 is existing technology and can drive the fixing frame 84 to move up and down. The inner side of the fixing frame 84 has several second sliding grooves 87 arranged vertically from left to right. The inner cavity of the second sliding grooves 87 is inserted into... A second slider 86 is connected, and a second leveling roller 88 is rotatably disposed inside the second slider 86. The second leveling roller 88 is located between two adjacent transmission rollers 2. The hydraulic cylinder 85 drives the fixed frame 84 to move, thereby driving the second slider 86 and the second leveling roller 88 to move. A spring 89 is fixedly disposed between the top of the inner cavity of the second slider 86 and the second slide groove 87. Under the elastic force of the spring 89, the second slider 86 is limited. When the second leveling roller 88 contacts the backlight panel under the drive of the hydraulic cylinder 85, it can actively press down on the backlight panel, so that the backlight panel is further flattened by force. The spring 89 is provided to buffer the force on the second leveling roller 88, so as to avoid the backlight panel being squeezed and deformed.

[0019] As a preferred embodiment, the second slider 86 further contacts the bottom end of the inner cavity of the second groove 87, so that the second slider 86 and the second leveling roller 88 can be moved up and down by the movable fixing frame 84.

[0020] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0021] Step 1: Based on the width of the backlight panel to be leveled, loosen the bolt 710 at the top of the limiting plate 79, move the limiting plates 79 on both sides along the guide rod 78 to the appropriate width, tighten the bolt 710 to lock and fix the limiting plate 79, and complete the adjustment of the limiting range of the backlight panel. By rotating the rotor 75, the screw 74 is driven to rotate, so that the support plate 72 moves up and down under the restriction of the limiting groove 73. Adjust the height of the first leveling roller 76 until the distance between the first leveling roller 76 and the transmission roller 2 is adapted to the initial leveling requirements of the backlight panel. Start the hydraulic cylinder 85 to drive the fixing frame 84 to move up and down along the first slide groove 83 through the first slider 82. Adjust the initial height of the second leveling roller 88 so that the distance between the second leveling roller 88 and the transmission roller 2 meets the pressure preset requirements of the secondary leveling. The spring 89 is in a natural extension and contraction state. Step 2: Start the reduction motor 6. The output end of the reduction motor 6 drives the second gear 5 connected to it to rotate counterclockwise. Since each second gear 5 meshes with the first gear 4 on the front side of the transmission roller in sequence, it drives all the first gears 4 to rotate synchronously. Finally, multiple transmission rollers 2 rotate clockwise synchronously. Place the backlight panel to be leveled on the transmission roller 2 on the left side of the stand 1. The rotation of the transmission roller 2 drives the backlight panel to be conveyed to the right at a uniform speed. Step 3: The backlight panel enters the leveling and limiting mechanism area under the drive of the transmission roller 2. The limiting plates 79 on both sides limit and guide the backlight panel, correcting its deviation during the conveying process, and ensuring that the backlight panel enters accurately between the first leveling roller 76 and the transmission roller 2. The first leveling roller 76 applies downward pressure to the backlight panel under the support of the support plate 72, and together with the upward support force of the transmission roller 2, it achieves the initial flattening of the backlight panel and eliminates obvious bending, warping and other deformations on its surface. Step 4: The backlight panel, after initial leveling, continues to be conveyed to the right and enters the secondary leveling mechanism area. The hydraulic cylinder 85 drives the fixed frame 84 to move downward, causing the second slider 86 and the second leveling roller 88 to move downward synchronously, so that the second leveling roller 88 contacts the surface of the backlight panel and applies a preset pressure. Under the squeezing action of the second leveling roller 88 and the transmission roller 2, the backlight panel is precisely leveled a second time, further eliminating residual minor deformations. During this process, the spring 89 is squeezed by the second slider 86 and generates elastic restoring force, which buffers and adjusts the pressure of the second leveling roller 88 to avoid excessive pressure causing deformation and damage to the backlight panel, while ensuring the uniformity of the leveling pressure. After secondary leveling, the backlight panel is output from the right side of the stand under the continuous conveying of the transmission roller, completing the entire segmented leveling process.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A segmented leveling device for an ultra-thin flat panel backlight, characterized in that, include: A support frame (1); a transmission roller (2), a plurality of transmission rollers (2) are rotatably arranged on the inner side of the support frame (1) from left to right; a housing (3), a housing (3) is fixedly arranged on the front side of the support frame (1); a first gear (4), the front side of the transmission roller (2) extends into the inner cavity of the housing (3) and is keyed to the first gear (4); a second gear (5), a plurality of second gears (5) are rotatably arranged on the bottom end of the inner cavity of the housing (3) from left to right, and the second gears (5) mesh with the first gears (4) in sequence; a reduction motor (6), fixedly arranged on one end of the front side of the housing (3), and the output end of the reduction motor (6) extends into the inner cavity of the housing (3) and is fixedly connected to one end of one of the second gears (5); a leveling and limiting mechanism (7), arranged on one side of the top end of the support frame (1); a secondary leveling mechanism (8), arranged on the other side of the top end of the support frame (1).

2. The segmented leveling device for an ultra-thin flat backlight panel according to claim 1, characterized in that: The leveling and limiting mechanism (7) includes: a support frame (71), which is fixedly provided on both the front and rear sides of the top of the upright frame (1); a support plate (72), which is inserted into the inner side of the support frame (71), and limiting grooves (73) are opened on both the left and right sides of the inner cavity of the support frame (71) in the vertical direction, and the two ends of the support plate (72) are adapted to be inserted into the inner cavity of the limiting groove (73); a screw (74), which is screwed to the top of the support frame (71), and the bottom end of the screw (74) extends into the inner side of the support frame (71) and is rotatably connected to the top of the support plate (72) through a bearing; a handle (75), which is fixedly provided on the top of the screw (74); and a first leveling roller (76), which is rotatably provided on the inner side of the support plate (72) in the left and right direction, and the first leveling roller (76) is located between two adjacent transmission rollers (2).

3. The segmented leveling device for an ultra-thin flat backlight panel according to claim 2, characterized in that: The leveling and limiting mechanism (7) further includes: a fixing plate (77), which is fixedly disposed on one side of the support frame (71); a guide rod (78), which is fixedly disposed between the two fixing plates (77); a limiting plate (79), which is sleeved on both the front and rear sides of the outer wall of the guide rod (78); and a bolt (710), which is screwed to the top of the limiting plate (79), and the bottom end of the bolt (710) is close to the outer wall of the guide rod (78).

4. The segmented leveling device for an ultra-thin flat backlight panel according to claim 3, characterized in that: The bottom end of the limiting plate (79) extends between the two drive rollers (2).

5. The segmented leveling device for an ultra-thin flat backlight panel according to claim 1, characterized in that: The secondary leveling mechanism (8) includes: a housing (81), fixedly disposed on the other side of the top of the upright (1); a first slider (82), wherein the inner cavity of the housing (81) has first grooves (83) on both the front and rear sides and the left and right ends along the vertical direction, and the first slider (82) is inserted into the inner cavity of the first grooves (83); a fixing frame (84), fixedly disposed on the inner side of the first slider (82); and a hydraulic cylinder (85), fixedly disposed on the top of the housing (81), and the driving end of the hydraulic cylinder (85) extends into the housing (81). The inner cavity is fixedly disposed at the top of the fixed frame (84); the second slider (86) is provided with a plurality of second slide grooves (87) on the inner side of the fixed frame (84) from left to right along the vertical direction, and the second slider (86) is inserted into the inner cavity of the second slide groove (87); the second leveling roller (88) is rotatably disposed on the inner side of the second slider (86), and the second leveling roller (88) is located between two adjacent transmission rollers (2); the spring (89) is fixedly disposed between the top of the inner cavity of the second slider (86) and the second slide groove (87).

6. The segmented leveling device for an ultra-thin flat backlight panel according to claim 5, characterized in that: The second slider (86) contacts the bottom end of the inner cavity of the second groove (87).

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