A device for gluing the back of PCB board of LED long strip lamp

Abstract

The present invention relates to a device for gluing the back of a PCB board of an LED long strip light, the device comprising a frame; a transmission track, the transmission track having multiple sections and arranged in a straight line on the frame along the length direction of the PCB board to convey the PCB board; a roller assembly, the roller assembly being arranged between the intervals, comprising a driving wheel and a driven wheel correspondingly arranged on both sides of the transmission track, the width between the driving wheel and the driven wheel being suitable for clamping the PCB board in a working state and enabling it to be transmitted and moved along with the synchronous rotation of the driving wheel and the driven wheel; a gluing module, the gluing module being arranged on one side of the transmission track, and gluing the PCB board transmitted by the transmission track and the roller assembly. Compared with the prior art, the present invention can realize automatic gluing of PCB boards, and has a high production qualification rate.

Description

Technical Field

[0001] The invention relates to the field of processing equipment, and in particular to a device for gluing the back side of a PCB board of an LED long strip lamp. Background Art

[0002] When conducting a withstand voltage test on LED lamps, insulating mylar tape needs to be attached to the back of the PCB board to insulate it from the aluminum base. With the change of technology, most LED lamps are now long strip lamps, which brings many problems.

[0003] One of the prominent phenomena is that currently, manual glue sticking is mainly adopted. When the length of the PCB board continues to increase, the problem of not sticking straight will appear, especially for the extra-long PCB board. This problem is particularly obvious, which leads to low production efficiency, low consistency of product sticking, and low pass rate of LED lamps voltage resistance test.

[0004] Moreover, as the number of LED types increases, the corresponding PCB board widths will also be different. Faced with the situation where the number of products to be tested is small but the types are large, manufacturers still have to frequently change production lines according to actual glue needs, which greatly increases production costs and wastes manpower and material resources. Summary of the invention

[0005] In view of the above problems, an object of the present invention is to provide a device that can be used for automatic gluing of the back side of a PCB board of an LED long light strip and has a high gluing pass rate.

[0006] The present invention also aims to provide a device which can be used for gluing PCB boards of different widths and has a wide application range and high production efficiency.

[0007] In order to achieve the above object, the technical solution of the present invention is: a device for gluing the back of a PCB board of an LED long light strip, characterized in that: the device comprises:

[0008] frame;

[0009] A transmission track, wherein the transmission track has multiple sections and is arranged on the frame in a straight line at intervals along the length direction of the PCB board to transport the PCB board;

[0010] A roller assembly, the roller assembly is arranged between the intervals, and comprises a driving wheel and a driven wheel correspondingly arranged on both sides of the transmission track, wherein the width between the driving wheel and the driven wheel is suitable for clamping the PCB board in a working state and enabling the PCB board to be transmitted and moved along with the synchronous rotation of the driving wheel and the driven wheel;

[0011] The gluing module is arranged on one side of the transmission track and performs gluing on the PCB board transmitted by the transmission track and the roller assembly.

[0012] Preferably, the driving wheel surface is provided with a first annular groove, the driven wheel surface is provided with a second annular groove, and the driving wheel and the driven wheel respectively perform synchronous rotational motion around the vertical coordinate axis as the center;

[0013] The first annular groove and the second annular groove are in the same plane and the distance between the inner side wall of the first annular groove and the inner side wall of the second annular groove is equivalent to the width of the PCB board in the working state, so as to clamp the PCB board transported by the transmission track and drive the PCB board forward under the synchronous movement of the driving wheel and the driven wheel.

[0014] Preferably, the driving wheel is fixed and the distance between the driven wheel and the driving wheel is adjustable.

[0015] Preferably, the driven wheel is driven by a cylinder to move forward or backward relative to the driving wheel to change the distance between the driving wheel and the driven wheel.

[0016] Preferably, the transmission track includes a first track and a second track arranged in parallel with the first track, and the width between the first track and the second track is equivalent to the width of the PCB board.

[0017] Preferably, the position of the first track is fixed, and the position of the second track relative to the first track is adjustable to adjust the width therebetween.

[0018] Preferably, a fixing piece with a fixed position is provided on the lower surface of the first track, and an adjusting component fixedly connected to the second track and corresponding to the position of the fixing piece is provided on the lower surface of the second track;

[0019] The adjusting component is connected to the fixing component through a screw rod, and the pitch of the screw rod screwed into the fixing component is adjustable to change the distance between the adjusting component and the fixing component.

[0020] Preferably, the adjusting component comprises a fixing block located on the lower surface of the second track and fixedly connected to the second track, the fixing block is provided with a through hole, the screw passes through the through hole and is screwed into the assembly hole on the fixing member.

[0021] Preferably, the device further comprises slide rails spaced apart in a vertical direction of the length of the PCB board, and both ends of the second rails are respectively arranged on the slide rails and can slide on the slide rails as the position of the adjusting component changes relative to the fixing component.

[0022] Preferably, a sensor for detecting the position of the PCB board is provided at the rear end of the roller assembly.

[0023] Preferably, the adhesive laminating module comprises a first roller, a second roller, a third roller, and a scissors located on one side of the second roller for cutting the adhesive tape, which are sequentially arranged along the conveying direction of the PCB board, wherein the axis of the roller is perpendicular to the length direction of the PCB board and each roller can rotate around its own axis;

[0024] The first roller is located above the second roller and guides the tape to be transported to the second roller through its own rotation;

[0025] The second roller is adhered to the end of the adhesive tape and can move in a vertical direction relative to the PCB to contact the PCB and press the adhesive tape onto the PCB by rotating itself;

[0026] The third roller can move relative to the PCB in the vertical direction to contact the PCB and apply pressure to the PCB after gluing. The scissors are driven by the cylinder to move forward or backward relative to the second roller.

[0027] Compared with the prior art, the advantages of the present invention are as follows: by arranging a roller assembly on the transmission track, the PCB board is driven forward by the rotation of the roller assembly, so as to realize automatic transmission of the PCB board, and at the same time, the automatic gluing is realized in cooperation with the gluing module. The cooperation of the transmission track, the roller assembly and the gluing module can make the gluing of the PCB board straight and consistent, thereby improving the gluing qualification rate and production efficiency; and the transmission track is formed by a first track and a second track that are relatively arranged, the distance between the first track and the second track is adjustable, and the spacing between the driving wheel and the driven wheel in the roller assembly is variable, so as to adapt to the gluing application of PCB boards of different widths, thereby improving the application range of the equipment and greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the preferred structure of the device for gluing the back side of the PCB board of the LED long light strip according to the present invention.

[0029] Figure 2 It is a cross-sectional view of the device for gluing the back side of the PCB board of the LED long light bar according to the present invention.

[0030] Figure 3 It is a partial exploded view of the device for gluing the back side of the PCB board of the LED long light bar of the present invention.

[0031] Figure 4 for Figure 2 Partial exploded view.

[0032] Figure 5 This is a schematic diagram of the gluing module results in the device for gluing the back of the PCB board of the LED long strip light used in this application.

[0033] Figure 6 for Figure 1 Schematic diagram from another angle. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] like Figures 1 to 4 Shown is a schematic diagram of the structure of an embodiment of the device for gluing the back side of the PCB board of an LED long strip light of the present invention. It should be mentioned that this embodiment only shows one structure of the device claimed for protection by the present application, but this does not mean that the device only corresponds to this structure. On the contrary, structures that are equivalent to and similar to the structure of the present application all fall within the protection scope of the present application.

[0036] Depend on Figure 1 It can be seen that the equipment includes a frame 1, a transmission track 2, a roller assembly 3, and a glue-applying module 4. Obviously, this type of processing machine tool equipment must also include components such as a motor, a drive power supply, and a control circuit (not shown in the figure), but these are well known to those skilled in the art and are not the focus of protection of this application, so they will not be elaborated here.

[0037] See also Figure 1 and Figure 3 The transmission track 2 has multiple sections, and the multiple sections of the transmission track 2 are arranged on the frame 1 at intervals along the length direction of the PCB board 5 and are arranged in a straight line to transport the PCB board 5, and the roller assembly 3 is arranged between the intervals of the multiple sections of the transmission track 2 to transport the PCB board transported by the transmission track 2 to enable it to continue to move forward.

[0038] Specifically, the roller assembly 3 includes a driving wheel 31 and a driven wheel 32 correspondingly arranged on both sides of the transmission track 2. In the working state, the distance between the driving wheel 31 and the driven wheel 32 is suitable for clamping the PCB board 5 and enabling the PCB board 5 to continue to be transmitted and moved along with the synchronous rotation movement of the driving wheel 31 and the driven wheel 32.

[0039] Obviously, in order to securely clamp and transport the PCB board 5, the width between the driving wheel 31 and the driven wheel 32 is adapted to the width of the PCB board. Figure 2 and Figure 4 As shown, the driving wheel 31 is provided with a first annular groove 311 on its surface, and the driven wheel 32 is provided with a second annular groove 321 on its surface. The driving wheel 31 and the driven wheel 32 respectively rotate synchronously with the vertical coordinate axis as the center, that is, the axes of the driving wheel 31 and the driven wheel 32 are parallel to the vertical axis, and the driving wheel 31 and the driven wheel 32 perform synchronous circular motion around their respective axes.

[0040] At the same time, the first annular groove 311 and the second annular groove 321 are in the same plane and the distance between the inner wall of the first annular groove 311 and the inner wall of the second annular groove 321 is equivalent to the width of the PCB board 5. In this way, the PCB board 5 transported by the transmission track 2 can naturally fall into the track formed by the first annular groove 311 and the second annular groove 321, and continue to move forward under the synchronous movement of the driving wheel 31 and the driven wheel 32.

[0041] It is easy to imagine that, in order to ensure the normal transportation of the PCB board, the track formed by the first annular groove 311 and the second annular groove 321 must coincide with the transportation direction of the PCB board, which is common technical knowledge known to those skilled in the art, so it is not repeated here. At the same time, the gluing module 4 is arranged on one side of the transmission track 2, and is used to glue the PCB board 5 transmitted by the transmission track 2 and the roller assembly 3.

[0042] Through the cooperation of the transmission track and the roller assembly, the PCB board can be automatically transported, and combined with the film assembly to achieve automatic gluing, the automated production of gluing on the back of the LED long light PCB board is realized, thus improving production efficiency.

[0043] The transmission track 2 can be a transmission track with conveying power in the conventional understanding, such as a track similar to a belt conveyor, which can convey the PCB board to the roller assembly behind by its own movement, or it can be a transmission track without conveying power, as shown in this embodiment. Obviously, when the transmission track 2 can move and convey the PCB board by itself, there are more stringent requirements and matching degrees for the placement position, installation height, rotation speed, etc. of the roller assembly 3, which are specifically selected by those skilled in the art according to actual needs and are not elaborated here one by one.

[0044] In order to reduce development costs, the present application preferably uses a transmission track without conveying power, such as Figure 1 and 3 As shown, the transmission track 2 includes a first track 21 and a second track 22 arranged in parallel with the first track 21 , and the width between the first track 21 and the second track 22 is equivalent to the width of the PCB board 5 .

[0045] It is easy to imagine that when this type of transmission track is used, the transmission track is mainly used to guide the PCB board to be placed along the transmission direction, making the operation easier, and the real driving force for the movement of the PCB board still depends on the rotation of the roller assembly 3. Therefore, in order to facilitate the placement of the PCB board and drive the subsequent movement of the PCB board, and at the same time to solve the problem of conveying PCB boards of different widths, as an improvement of the present application, the spacing between the driving wheel 31 and the driven wheel 32 is adjustable. In order to simplify the operation, the present embodiment adopts a design structure in which the driving wheel 31 is fixed and the driven wheel 32 can be driven by the cylinder 6 to feed or retreat relative to the driving wheel 31.

[0046] In other words, in order for the PCB board 5 to be smoothly placed in the roller assembly 3, before the PCB board is placed, the driven wheel 32 is separated from the driving wheel 31 by a large distance, and the width of the separation is greater than the width of the PCB board 5. After the PCB board 5 enters the track formed by the driving wheel 31 and the driven wheel 32, the driven wheel 32 is driven by the cylinder 6 to move toward the driving wheel 31 to close, so that the width of the track formed between the first annular groove 311 on the driving wheel 31 and the second annular groove 321 on the driven wheel 32 is equivalent to the PCB 5 board to securely clamp the PCB board, and then the driving wheel 31 and the driven wheel 32 rotate synchronously to drive the PCB board 5 to move forward, thereby realizing the transmission of the PCB board.

[0047] When the driven wheel 32 moves forward or backward toward the driving wheel 31, that is, when the driving wheel 31 and the driven wheel 32 are separated or closed, all depends on the sensor 7 at the rear end of the rolling assembly 3. Figure 1 As shown, after the sensor 7 transmits the sensed PCB information to the control circuit of the device (not shown in the figure), the control circuit sends a forward or backward instruction to the driven wheel 32, thereby completing the above operation. The specific model of the sensor 7 is determined according to actual needs and will not be discussed here.

[0048] In order to implement the gluing operation on PCB boards of different widths, as an improvement, the first track 21 is fixed in position, and the position of the second track 22 relative to the first track 21 is adjustable, and the amount of position adjustment is determined according to the width of the PCB board to be glued. Of course, the second track 22 can also be fixed and the relative position of the first track 21 can be adjusted.

[0049] In this embodiment, a fixed fixing piece 23 is provided on the lower surface of the first track 21, and an adjusting component 24 is provided on the lower surface of the second track 22, which is fixedly connected thereto and corresponds to the position of the fixing piece 23. The adjusting component 24 is connected to the fixing piece 23 via a screw 25, and the pitch of the screw 25 screwed into the fixing piece 23 is adjustable, thereby changing the distance between the adjusting component 24 and the fixing piece 23. Since the adjusting component 24 is fixedly connected to the second track 22, the position of the first track 21 is fixed, and the position of the fixing piece 23 is fixed. In this way, changing the distance between the adjusting component 24 and the fixing piece 23 actually changes the spacing between the second track 22 and the first track 21, thereby realizing the adjustable width of the transmission track to adapt to PCB boards of different widths.

[0050] like Figure 3 As shown, the adjusting component 24 includes a fixing block 241 located on the lower surface of the second track 22 and fixedly connected to the second track 22 . The fixing block 241 is provided with a through hole 242 . The screw 25 passes through the through hole 242 and is screwed into the assembly hole 232 on the fixing member 23 .

[0051] In order to ensure that the overall displacement of the second track 22 is the same when adjusting the distance between the adjusting component 24 and the fixing component 23, the device also includes slide rails 8 arranged at intervals in the length direction of the vertical PCB board 5. The two ends of the second track 22 are respectively arranged on the slide rails 8 and can slide on the slide rails 8 as the position of the adjusting component 24 changes relative to the fixing component 23.

[0052] See also Figure 1 and Figure 5 and Figure 6 The gluing module 4 comprises a first roller 41, a second roller 42, a third roller 43 which are sequentially arranged along the conveying direction of the PCB board 5, and a scissors 44 which are located at one side of the second roller 42 to cut the adhesive tape 45. The axis of each roller is perpendicular to the length direction of the PCB board 5 and each roller can rotate around its own axis, wherein the first roller 41 is located above the second roller 42 and guides the adhesive tape 45 to be conveyed to the second roller 42 through its own rotation, the second roller 42 is adhered to the end of the adhesive tape 45 and can move relative to the PCB board 5 in the vertical direction to contact the PCB board 5, and press the adhesive tape 45 onto the PCB board 5 through its own rotation, the third roller 43 can move relative to the PCB board 5 in the vertical direction to contact the PCB board 5 and press the PCB board 5 after gluing, and the scissors 44 can be driven by the cylinder 6 to feed relative to the second roller 42, so as to cut the adhesive tape 45 after the current PCB board is finished gluing.

[0053] In this embodiment, if Figure 1As shown, the roller assembly 3 has three groups, one group is located in front of the glue sticking module 4, one group is located at the front side below the glue sticking module 4, and one group is located at the rear of the glue sticking module 4. For the convenience of description, the three groups of roller assemblies are named A, B, and C respectively. In the initial state, the driven wheels 32 in A, B, and C are all far away from the driving wheel 31, and the spacing distance is greater than the width of the PCB board 5. When performing the glue sticking operation, first put the PCB board 5 into the track groove of the transmission track 2 and make its end extend into the roller assembly A. The sensor 7 at the rear end of A detects that the PCB board has been extended, and sends the signal to the control circuit (not shown in the figure). The control circuit commands the driven wheel 31 to move toward the driving wheel 31 to close to clamp the PCB board 5. Then the driving wheel 31 and the driven wheel 32 rotate synchronously, driving the PCB board 5 to move along the transmission track 2. When the PCB board 5 extends into the roller assembly B, the driven wheel 32 of B is also closed and aligned with the driving wheel 3 2 clamps and transports the PCB board together, and at the same time, the sensor 7 at the rear end of B transmits the detected information of the PCB board 5 to the control circuit, and the control circuit commands the gluing module 4 to work, and the second roller 42 moves toward the PCB board 5 to fit the PCB board 5, and the adhesive tape 45 is attached to the PCB board. As the PCB board 5 continues to move forward, the first roller 41 rotates continuously to guide the adhesive tape 45 to the second roller 42, and the third roller 43 applies pressure to the PCB board 5 after the bonding, so that the adhesive tape is more firmly attached. In this process, the sensor 7 continuously sends the position information of the PCB board 5 to the control circuit. When the PCB board is about to be glued, the control circuit commands the second roller 42 to separate from the PCB board 5 and commands the cylinder 6 to drive the scissors 44 to move toward the second roller 42 to cut the adhesive tape 45. Thereafter, the third roller 43 is also separated from the PCB board, and the PCB board 5 after the gluing is completed continues to be transported out by the roller assembly C, thereby completing the automatic gluing operation.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A device for gluing the back of a PCB board of an LED long light strip, characterized in that: The device comprises, Rack(1); A transmission track (2), the transmission track (2) having a plurality of sections and arranged in a straight line on the frame (1) at intervals along the length direction of the PCB board (5) to transport the PCB board (5); A roller assembly (3), the roller assembly (3) being arranged between the intervals, comprising a driving wheel (31) and a driven wheel (32) arranged correspondingly on both sides of the transmission track (2), wherein the width between the driving wheel (31) and the driven wheel (32) is suitable for clamping the PCB board (5) in a working state and enabling the PCB board (5) to be transmitted and moved along with the synchronous rotation of the driving wheel (31) and the driven wheel (32); A gluing module (4), the gluing module (4) being arranged on one side of the transmission track (2) and performing gluing on the PCB board (5) transmitted by the transmission track (2) and the roller assembly (3); wherein: The transmission track (2) comprises a first track (21) and a second track (22) arranged in parallel with the first track (21), and the width between the first track (21) and the second track (22) is equivalent to the width of the PCB board (5); The driving wheel (31) is fixed and the distance between the driven wheel (32) and the driving wheel (31) is adjustable; The position of the first track (21) is fixed, and the position of the second track (22) relative to the first track (21) is adjustable; A fixed fixing member (23) is provided on the lower surface of the first track (21), and an adjusting member (24) is provided on the lower surface of the second track (22) and is fixedly connected to the second track and corresponds to the position of the fixing member; the adjusting member (24) is connected to the fixing member (23) via a screw (25); the screw (25) is screwed into the fixing member (23) with an adjustable pitch so as to change the distance between the adjusting member (24) and the fixing member (23); The device further comprises slide rails (8) arranged at intervals in the longitudinal direction of the vertical PCB board (5), and the two ends of the second rail (22) are respectively arranged on the slide rails (8) and can slide on the slide rails (8) as the position of the adjustment component (24) relative to the fixing component (23) changes.

2. The device according to claim 1, characterized in that: The driving wheel (31) is provided with a first annular groove (311) on its surface, and the driven wheel (32) is provided with a second annular groove (321) on its surface; the driving wheel (31) and the driven wheel (32) respectively perform synchronous rotational motion around a vertical coordinate axis; The first annular groove (311) and the second annular groove (321) are located in the same plane, and the distance between the inner side wall of the first annular groove (311) and the inner side wall of the second annular groove (321) is equivalent to the width of the PCB board (5) in the working state, so as to clamp the PCB board (5) transported by the transmission track (2) and drive the PCB board (5) forward under the synchronous movement cooperation of the driving wheel (31) and the driven wheel (32).

3. The device according to claim 1, characterized in that: The driven wheel (32) is driven by the cylinder (6) to move forward or backward relative to the driving wheel (31) to change the distance between the driving wheel (31) and the driven wheel (32).

4. The device according to claim 1, characterized in that: The adjusting component (24) comprises a fixing block (241) located on the lower surface of the second track (22) and fixedly connected to the second track (22); a through hole (242) is provided on the fixing block (241); the screw rod (25) passes through the through hole (242) and is screwed into the assembly hole (232) on the fixing member (23).

5. The device according to claim 1, characterized in that: A sensor (7) for detecting the position of the PCB board (5) is provided at the rear end of the roller assembly (3).

6. The device according to claim 1, characterized in that: The adhesive laminating module (4) comprises a first roller (41), a second roller (42), and a third roller (43) which are sequentially arranged along the conveying direction of the PCB board (5), and a pair of scissors (44) located on one side of the second roller (42) for cutting the adhesive tape (45), wherein the axis of each roller is perpendicular to the length direction of the PCB board (5) and each roller can rotate around its own axis; The first roller (41) is located above the second roller (42) and is transported to the second roller (42) by the guide belt (45) through its own rotation; The second roller (42) is adhered to the end of the adhesive tape (45) and can move in a vertical direction relative to the PCB board (5) to contact the PCB board (5) and press the adhesive tape (45) onto the PCB board by rotating itself; The third roller (43) can move in a vertical direction relative to the PCB board (5) to contact the PCB board (5) and apply pressure to the PCB board (5) after gluing, and the scissors (44) can be driven by the cylinder (6) to move forward or backward relative to the second roller (42).

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