LED substrate adhesive tape pasting auxiliary tool capable of automatically avoiding cutter through positioning piece
By setting up substrate positioning parts and linkage mechanisms on the LED substrate placement table, the problem of inaccurate positioning during the LED substrate tape sticking process and difficulty in cutting off excess tape is solved, and high-precision tape sticking and cutting are achieved.
Patent Information
- Application Number
- CN202422361016.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, LED substrates are prone to misalignment of tape sticking due to manual positioning during tape sticking, and it is difficult for the cutter to cut off excess tape smoothly.
A substrate placement table with substrate positioning members is designed, and the linkage mechanism is used to realize the linkage between the cutting knife and the substrate positioning member to ensure that the cutting knife automatically abdicates and avoids the substrate positioning member when cutting excess tape, and improves the adhesive accuracy of the tape.
It can improve the adhesive accuracy without manually holding the substrate, ensure that the cutter successfully removes excess tape, and avoid misalignment problems caused by hand shaking or visual errors.
Smart Images
Figure CN223273247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LED substrate adhesive tape pasting, in particular to an LED substrate adhesive tape pasting auxiliary tool with a positioning part that automatically avoids a knife. Background Art
[0002] LED light sources require pre-processing before injection molding. One of these steps involves applying tape to the bottom of the LED substrate to prevent it from sticking to the resin during molding. Currently, this step is primarily performed manually by the operator: first, a length of tape is pulled out that exceeds the LED substrate. The effective center portion of the tape is then evenly applied to the bottom of the LED substrate. After application, the excess tape at either end protrudes outside the substrate. Finally, a cutter is used to cut off the excess tape. Because the operator manually grasps the LED substrate to position it during the tape application process, it can be easily misplaced due to hand shaking or visual errors. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an auxiliary tool for sticking adhesive tape on an LED substrate, which can improve the sticking accuracy of the adhesive tape.
[0004] To this end, the inventor designed a substrate placement table with a substrate positioning part. The operator does not need to manually hold the LED substrate to position it. The operator only needs to place the substrate on the substrate placement table, and then use the substrate positioning part to position the substrate at the edge of the LED substrate. This can improve the accuracy of the tape pasting. After the tape is pasted, the excess parts at both ends extend outside the edge of the LED substrate. Since the substrate has been positioned and its edge position is fixed, the inventor set a cutter on the substrate placement table. The cutter passes through the edge of the substrate and cuts off the excess part of the tape. However, since the substrate positioning part blocks the edge of the substrate, it will block the cutter. For this reason, the utility model is designed so that the cutter and the substrate positioning part are linked together. The linkage relationship is: when the cutter passes through the substrate positioning part, the substrate positioning part automatically retreats to avoid the knife, ensuring that the cutter can smoothly cut off the excess part of the tape.
[0005] In order to solve the above technical problems, the utility model provides an auxiliary tool for LED substrate tape pasting with a positioning part that automatically avoids the knife, including a substrate placement table for placing the LED substrate, a substrate positioning part is installed on the substrate placement table, which laterally positions the LED substrate at the edge of the LED substrate, and is also installed with a cutter for cutting off the excess part of the tape after pasting; a linkage mechanism is provided to allow the cutter and the substrate positioning part to work together, and the linkage relationship is: when the cutter cuts through the substrate positioning part, the substrate positioning part retreats to avoid the knife.
[0006] Furthermore, the substrate positioning member limits the LED substrate in at least two non-parallel directions to achieve lateral positioning of the LED substrate.
[0007] Furthermore, the substrate positioning piece is angular and rests on the corner of the LED substrate.
[0008] Furthermore, there are two opposite substrate positioning members that clamp the LED substrate together.
[0009] Furthermore, the substrate positioning member is specifically a right-angled shape.
[0010] Furthermore, the linkage relationship is specifically as follows: the cutting knife drives the substrate positioning member to retreat to avoid the knife.
[0011] Furthermore, the knife avoidance mechanism includes an oblique transmission member for converting lateral motion into longitudinal motion. The cutter cuts horizontally, and the oblique surface of the oblique transmission member pushes the substrate positioning member to retreat longitudinally to avoid the knife.
[0012] Furthermore, the knife avoidance mechanism includes a roller, and the roller and the oblique transmission member are in contact with each other at an inclined surface. The cutter pushes one of the rollers through the inclined surface of the other, thereby indirectly pushing the substrate positioning member at an inclined surface.
[0013] Furthermore, a return spring is included to drive the substrate positioning member to return to its original position.
[0014] Furthermore, a guide surface is provided on the top of the positioning surface of the substrate positioning piece to guide the LED substrate obliquely downward to the positioning surface of the substrate positioning piece.
[0015] The operator no longer needs to manually hold the LED substrate to position it; instead, they simply place the substrate on the substrate table and use the substrate positioning member to position it along the edge of the LED substrate, improving the tape application accuracy. Because the cutter and substrate positioning member are linked by a linkage mechanism, after the tape is applied, the operator uses the cutter to cut away the excess tape. During this process, when the cutter passes over the substrate positioning member, the substrate positioning member automatically retreats to avoid the cutter, allowing the cutter to smoothly remove the excess tape. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the auxiliary tool.
[0017] Figure 2 yes Figure 1 A partial enlarged view of the Figure 1 Part A.
[0018] Figure 3 It is a schematic diagram of the tape being spread flat on the tape placement table.
[0019] Figure 4 This is a schematic diagram of the LED substrate being attached to the tape.
[0020] Figure 5 yes Figure 4 A partial enlarged view of the Figure 4 Part B.
[0021] Figure 6 This is a schematic diagram of the cutter cutting the tape to the right, and the positioning spring is hidden in the figure.
[0022] Figure 7 yes Figure 6 A partial enlarged view of the Figure 6 The positioning spring is hidden in the figure.
[0023] Figure 8 is a schematic diagram of a substrate positioning member. DETAILED DESCRIPTION
[0024] The present invention is further described in detail below in conjunction with specific embodiments.
[0025] LED substrate tape auxiliary tools see Figure 1 , including a tape placement platform 1, a front guide slit 14 is left between the front end 111 of the middle part 11 and the front part 12, and a rear guide slit 15 is left between the rear end 112 of the middle part 11 and the rear part 13. The front and rear guide slits 14 and 15 are both in the left and right direction. A cutter 2 is installed on the left side of the tape placement platform 1. The cutter 2 includes a handle 21 in the front and rear directions. The front and rear ends of the handle 21 are respectively installed in the front and rear guide slits 14 and 15, and are respectively equipped with right-facing blades 22. Figure 2 As shown. The rear portion 13 of the adhesive tape placement platform 1 is rotatably mounted with a pressure wheel 52, which presses on the top surface of the rear portion 13 of the adhesive tape placement platform 1. Figure 1 , a tape roll support tube 51 is provided at the rear side of the tape placement table 1; the tape roll 90 is as shown Figure 3 , put it on the outside of the tape roll support tube 51, and in this way support it on the tape roll support tube 51. The operator's first tape application operation is as follows:
[0026] See Figure 3With the front-to-back direction as the longitudinal direction, manually move the tape roll 90. The tape roll support tube 51 guides the tape roll 90 to rotate, so that the free end 905 of the tape roll 90 is fed longitudinally forward, with the adhesive surface 901 of the free end 905 facing upward and the protective surface (not shown in the figure due to viewing angle) facing downward. Feed the free end 905 of the tape roll 9 between the pressure roller 52 and the rear portion 13 of the tape placement platform 1, allowing the pressure roller 52 to press the free end 905 of the tape roll 9. Rotate the pressure roller 52 to overcome the lateral friction between the protective surface of the tape roll 90 and the tape placement platform 1, and feed the free end 905 of the tape roll 90 forward longitudinally to the front side of the pressure roller 52. Pull the free end 905 of the tape roll 90 longitudinally forward to the front portion 12 of the tape placement platform 1, thereby pulling out a section of tape 9 in the longitudinal direction of the front-to-back direction. The rear end of the longitudinal tape 9 is connected to the tape roll 90, serving as the starting point of the longitudinal tape 9. The free end 905 of the tape roll 90 serves as the leading and trailing end of the longitudinal tape 9. The longitudinal tape 9 is laid flat on the tape placement table 1. The center portion 11 of the tape placement table 1 supports the protective surface of the effective middle portion 91 of the longitudinal tape 9. The front portion 12 of the tape placement table 1 supports the protective surface of the excess portion 92 at the front end of the longitudinal tape 9. The rear portion 13 of the tape placement table 1 supports the protective surface of the excess portion 93 at the rear end of the longitudinal tape 9. This completes the preparation.
[0027] See Figure 4 , use the tape placement table 1 as the substrate placement table, and stick the LED ceramic substrate 8 to the sticking surface 911 of the effective part 91 in the middle of the longitudinal tape 9 (see Figure 3 ) and, in this manner, place the LED ceramic substrate 8 on the tape placement platform 1. After affixing, the excess portions 92 and 93 at the front and rear ends of the longitudinal tape 9 extend from the edges of the LED ceramic substrate 8 to the front and rear sides of the LED ceramic substrate 8. Since the pressure roller 52 has already pressed the excess portion 93 at the rear end of the longitudinal tape 9, an object (not shown) is now used to press the excess portion 92 at the front end of the longitudinal tape 9. The excess portions 92 and 93 at the front and rear ends of the longitudinal tape 9 are now pressed against the tape placement platform 1. Figure 6 and Figure 7 , with the left and right directions as the horizontal direction, pull the handle 21 of the cutter 2 to the right horizontally so that the cutter 2 moves along the front and rear guide slits 14 and 15 (see Figure 1 ) moves horizontally to the right, driving the two blades 22 to pass through the front and rear ends of the middle part 11 of the tape placement table 1, thereby cutting off the excess parts 92 and 93 of the front and rear ends of the tape 9, respectively. Then, the cutter 2 is reset to the left. After that, the excess part 93 of the rear end of the tape 9 serves as the new free end 93 of the tape roll 90. Pick up the LED ceramic substrate 8 by hand and you can separate the LED ceramic substrate 8 and the effective part 91 of the tape 9 pasted on it (see Figure 3 ) together, and then remove the items pressing the excess portion 92 at the front end of the longitudinal tape 9, and the tape 9 work is completed.
[0028] See Figure 4 During the pasting process, if the operator manually holds the LED ceramic substrate 8 to position it, it is easy for the longitudinal tape 9 to be misplaced due to hand shaking or visual errors. In order to improve the pasting accuracy of the longitudinal tape 9, two front and rear substrate positioning units 31 and 32 are installed on the tape placement table 1. The front and rear substrate positioning units 31 and 32 jointly clamp the LED ceramic substrate 8 and perform lateral positioning on the LED ceramic substrate 8 to assist in improving the pasting accuracy of the longitudinal tape 9. The front and rear substrate positioning units 31 and 32 are symmetrical in structure. The following is a detailed description of the front substrate positioning unit 31 as an example. The substrate positioning unit 31 is shown in FIG. Figure 5 and Figure 7 , including a mounting block 33, which is mounted on the side wall of the front portion 12 of the adhesive tape placement table 1 and has a mounting hole 331 extending in the front-to-back direction. A sliding rod 34 extending in the front-to-back direction is inserted through the mounting hole 331, and the front and rear ends 341 and 342 of the sliding rod 34 extend out of the mounting hole 331. The front end 341 of the sliding rod 34 is larger than the mounting hole 331 and cannot pass through the mounting hole 331 backward. The rear end 342 of the sliding rod 34 is mounted with a substrate positioning member 3. A positioning spring 35 is mounted on the sliding rod 34, and the positioning spring 35 pushes the substrate positioning member 3 backward. The substrate positioning member 3 is shown in FIG. Figure 8 , is a right-angled shape, with a rearward-facing first positioning surface 301 and a leftward-facing second positioning surface 302. The top edge of the first positioning surface 301 is chamfered to form a downward-sloping first guide surface 303, and the top edge of the second positioning surface 302 is chamfered to form a downward-sloping second guide surface 304. The center portion of the substrate positioning member 3 is left hollow to form a buckle groove 300. The rear substrate positioning unit 32 is symmetrical with the front substrate positioning unit 31 in structure and will not be described in detail. The operator chooses one of the following two methods to lateral position the LED ceramic substrate 8:
[0029] (1) See Figure 4 and Figure 5First, align the front right corner 81 and rear right corner 82 of the LED ceramic substrate 8 with the two substrate positioning members 3 of the front and rear substrate positioning units 31 and 32, respectively. Then, press the front right corner 81 and rear right corner 82 of the LED ceramic substrate 8 between the two substrate positioning members 3. If the LED ceramic substrate 8 is positioned forward, the front edge 801 of the LED ceramic substrate 8 will push against the first guide surface 303 of the forward substrate positioning member 3. The first guide surface 303 of the substrate positioning member 3 guides the front edge 801 of the LED ceramic substrate 8 downward and backward toward the first positioning surface 301. At the same time, the substrate positioning member 3 is pushed forward by the LED ceramic substrate 8, driving the sliding rod 34 to slide forward together, thereby compressing the positioning spring 35. The positioning spring 35 then indirectly applies a backward thrust to the front edge 801 of the LED ceramic substrate 8 through the substrate positioning member 3. Simply loosen the LED ceramic substrate 8 slightly, and the positioning spring 35 will push the LED ceramic substrate 8 backward to the correct position. Similarly, if the LED ceramic substrate 8 is positioned at the rear, the positioning spring 35 of the rear substrate positioning unit 32 pushes the LED ceramic substrate 8 forward to the correct position, which will not be described in detail. Figure 5 and Figure 8 If the LED ceramic substrate 8 is positioned to the right, its right edge 803 will press against the second guide surface 304 of the substrate positioning member 3. This guide surface 304 tilts the LED ceramic substrate 8 downward and to the left, guiding it toward the second positioning surface 302, thereby positioning it correctly. Slightly loosen the LED ceramic substrate 8, then manually push it to the right, ensuring that its right edge 803 is in contact with the substrate positioning member 3. In this state, the two substrate positioning members 3 of the front and rear substrate positioning units 31 and 32 rest against the opposite front right corners 81 and rear right corners 82 of the LED ceramic substrate 8, respectively, jointly clamping the LED ceramic substrate 8 laterally. The front substrate positioning member 3, located at the front edge 801 and right edge 803 of the LED ceramic substrate 8, limits the LED ceramic substrate 8 in both the forward and right directions, thereby achieving lateral positioning of the LED ceramic substrate 8. The rear substrate positioning member 3 is located at the rear edge 802 and the right edge 803 of the LED ceramic substrate 8 , and limits the LED ceramic substrate 8 laterally in the rear and right directions, thereby achieving lateral positioning of the LED ceramic substrate 8 .
[0030] (2) See Figure 7 First, insert your finger into the buckle groove 300 of the front substrate positioning member 3 and push the front substrate positioning member 3 forward to drive the sliding rod 34 to slide forward together to compress the positioning spring 35 (see Figure 5 ), then Figure 4, put the LED ceramic substrate 8 between the two substrate positioning members 3 of the front and rear substrate positioning units 31 and 32, so that the right edge 803 of the LED ceramic substrate 8 is close to the second guide surface 302 of the two substrate positioning members 3 (see Figure 8 ) on. See Figure 4 、 Figure 5 Release the front substrate positioning member 3 and allow the positioning spring 35 to slide the front substrate positioning member 3 backward until the two substrate positioning members 3 respectively rest on the front right corner 81 and rear right corner 82 of the LED ceramic substrate 8, thereby laterally clamping the LED ceramic substrate 8. The front substrate positioning member 3 is located at the front edge 801 and right edge 803 of the LED ceramic substrate 8, and limits the LED ceramic substrate 8 in the front and right directions, thereby achieving lateral positioning of the LED ceramic substrate 8. The rear substrate positioning member 3 is located at the rear edge 802 and right edge 803 of the LED ceramic substrate 8, and limits the LED ceramic substrate 8 in the rear and right directions, thereby achieving lateral positioning of the LED ceramic substrate 8.
[0031] See Figure 3 and Figure 4 After the LED ceramic substrate 8 is positioned, press down the LED ceramic substrate 8 to make it stick to the sticking surface 911 of the middle effective part 91 of the adhesive tape 9, and then Figure 6 As shown, the cutter 2 is operated to cut off the excess portions 92 and 93 of the tape 9. When the cutter 2 is cutting, the two blades 22 respectively pass horizontally across the front and rear edges 801 and 802 of the LED ceramic substrate 8. If the two substrate positioning members 3 are constantly resting on the front right corner 81 and rear right corner 82 of the LED ceramic substrate 8, they will block the cutter 2. To ensure that the cutter 2 can smoothly remove the excess portions 92 and 93 of the tape 9, the tool is provided with a linkage mechanism 4 that allows the cutter 2 to work in conjunction with the two substrate positioning members 3. Taking the front substrate positioning member 3 as an example, the linkage mechanism 4 is shown in FIG. Figure 2 and Figure 5 , including an oblique transmission member 41 with the left end forward and the right end backward, the oblique transmission member 41 is installed on the base plate positioning member 3, and the linkage mechanism 4 also includes a roller 42 installed at the front end of the cutter 2. The cutter 2 moves horizontally to the right to cut the tape 9, driving the roller 42 to move horizontally to the right together. During this process, Figure 7 , the cutter 2 passes the substrate positioning member 3, driving the roller 42 to contact the oblique transmission member 41, thereby pushing the oblique transmission member 41. The oblique transmission member 41 converts the lateral movement of the roller 42 into the longitudinal movement of the substrate positioning member 3. That is, the oblique transmission member 41 indirectly pushes the substrate positioning member 3 obliquely, so that the substrate positioning member 3 automatically retreats forward longitudinally to avoid blocking the cutter 2. In this way, the linkage between the cutter 2 and the substrate positioning member 3 is realized. When the cutter 2 resets to the left, it drives the roller 42 to reset. During this process, see Figure 5The positioning spring 35 serves as a reset spring to drive the substrate positioning member 3 to reset.
[0032] In this embodiment, the cutter 2 and the substrate positioning member 3 are linked by a linkage mechanism 4. The linkage relationship is: when the cutter 2 passes through the substrate positioning member 3, the linkage mechanism 4 drives the substrate positioning member 3 to retreat to avoid the cutter. Other embodiments can be modified as follows:
[0033] (1) The linkage mechanism drives the cutter and the substrate positioning member to move to the right to cut the tape, and at the same time drives the substrate positioning member to retreat to avoid the cutter. For example, the linkage mechanism includes a worm gear mechanism and a rack and pinion mechanism. The worm is placed longitudinally and sleeved together with the gear. As a driving member, the rack and pinion mechanism drives the cutter to cut horizontally. The linkage mechanism includes a longitudinal second rack. The second rack engages the worm gear. The worm drives the worm gear to rotate, thereby driving the second rack to move longitudinally, causing the substrate positioning member to retreat longitudinally to avoid the cutter. Or
[0034] (2) The substrate positioning member is used as a driving member, and the linkage mechanism drives the cutter to move horizontally for cutting. For example, the linkage mechanism includes two gears, two racks and two bevel gears. The substrate positioning member drives the first rack to move longitudinally, thereby driving the first gear to rotate. The first gear and the first bevel gear are coaxial, driving the first bevel gear to rotate. The first bevel gear drives the second bevel gear to rotate. The second bevel gear is coaxial with the second gear, driving the second gear to rotate. The second gear engages with the second rack, driving the second rack to move horizontally, thereby driving the cutter to move horizontally.
[0035] The above is only an embodiment of the present invention and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the present invention and still fall within the scope of patent protection.
Claims
1. An auxiliary tool for taping LED substrates with automatic knife avoidance for positioning parts, characterized by: The invention comprises a substrate placement table for placing an LED substrate, a substrate positioning piece is installed on the substrate placement table, which positions the LED substrate laterally at the edge of the LED substrate for tape pasting, and is also installed with a cutter for cutting off the excess part of the tape after pasting; a linkage mechanism is provided to allow the cutter and the substrate positioning piece to work in conjunction with each other, and the linkage relationship is: when the cutter cuts through the substrate positioning piece, the substrate positioning piece retreats to avoid the cutter.
2. The auxiliary tool according to claim 1, characterized in that: The substrate positioning member limits the LED substrate in at least two non-parallel directions to achieve lateral positioning of the LED substrate.
3. The auxiliary tool according to claim 2, characterized in that: The substrate positioning piece is angle-shaped and rests on the corner of the LED substrate.
4. The auxiliary tool according to any one of claims 1 to 3, characterized in that: There are two opposite substrate positioning pieces that clamp the LED substrate together.
5. The auxiliary tool according to claim 3, characterized in that: The substrate positioning piece is specifically in a right-angle shape.
6. The auxiliary tool according to claim 1, characterized in that: The specific linkage relationship is: the cutter drives the substrate positioning part to retreat to avoid the cutter.
7. The auxiliary tool according to claim 6, characterized in that: The knife avoidance mechanism includes an oblique transmission member for converting lateral motion into longitudinal motion. The cutter cuts horizontally and the oblique surface of the oblique transmission member pushes the substrate positioning member to retreat longitudinally to avoid the knife.
8. The auxiliary tool according to claim 7, characterized in that: The knife avoidance mechanism comprises a roller, and the roller and the oblique transmission member are in contact with each other on an oblique surface. The cutter pushes the substrate positioning member indirectly on the oblique surface through the oblique surface of one of the rollers.
9. The auxiliary tool according to claim 1 or 5, characterized in that: Includes a return spring for driving the substrate positioning member to return to its original position.
10. The auxiliary tool according to claim 2, characterized in that: A guide surface is provided on the top of the positioning surface of the substrate positioning piece to guide the LED substrate obliquely downward to the positioning surface of the substrate positioning piece.