Auxiliary tool for sticking adhesive tape to LED substrate and capable of adsorbing adhesive tape
Through the combination of the negative pressure adsorption table and the cutting knife, the wrinkle problem when the LED substrate is pasted, the flat pasting of the adhesive is achieved, and the adhesion firmness and accuracy are improved.
Patent Information
- Application Number
- CN202422360960.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, LED substrates tend to curl or wrinkle when pasting tape due to soft tape, resulting in unstable and uneven sticking.
The negative pressure adsorption table is used in combination with a cutting knife. The negative pressure adsorption table is equipped with a main adsorption area and a secondary adsorption area. The cutting knife cuts off excess tape along the guide cut joint and is positioned sideways with the substrate positioning member to ensure that the tape is flat and pasted.
It improves the adhesion firmness and flatness of the tape, reduces the possibility of wrinkling of the tape, and improves the adhesion accuracy and efficiency.
Smart Images
Figure CN223218266U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LED substrate adhesive tape sticking, in particular to an LED substrate adhesive tape sticking auxiliary tool capable of absorbing adhesive tape. 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 process is primarily performed manually: first, a length of tape is drawn 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 each end protrudes beyond the substrate. Finally, a cutter is used to remove the excess tape. Because the tape is relatively soft, it can easily curl or wrinkle during application, resulting in a loose or uneven application. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an LED substrate adhesive tape-sticking auxiliary tool capable of absorbing adhesive tape, wherein the tool can keep the adhesive tape flat during sticking and is not prone to wrinkling.
[0004] In order to solve the above technical problems, the utility model is an LED substrate taping auxiliary tool that can adsorb tape, which is provided with a negative pressure adsorption platform, which adsorbs the protective surface of the flatly placed tape so that the LED substrate can be pasted to the adhesive surface of the effective part of the tape. The negative pressure adsorption platform is provided with a main adsorption area for adsorbing the protective surface of the effective part of the tape, and two auxiliary adsorption areas are respectively provided at the beginning and end of the main adsorption area to adsorb the excess parts of the beginning and end of the tape. The negative pressure adsorption platform is provided with a cutter, which cuts off the excess parts of the beginning and end of the tape horizontally at the beginning and end of the main adsorption area.
[0005] Furthermore, a cutting guide is left between the main adsorption area and the auxiliary adsorption area, and the cutter moves along the cutting guide through the beginning and the end of the main adsorption area to cut off the redundant part of the tape.
[0006] Furthermore, a substrate positioning member for lateral positioning of the LED substrate is installed on the negative pressure adsorption platform.
[0007] Furthermore, the substrate positioning member specifically limits the LED substrate laterally in at least two non-parallel directions to achieve lateral positioning of the LED substrate.
[0008] Furthermore, the substrate positioning piece is angular and rests on a corner of the LED substrate.
[0009] Furthermore, there are two opposite substrate positioning members that together laterally clamp the LED substrate.
[0010] Furthermore, the substrate positioning member is specifically a right-angled shape.
[0011] Furthermore, a tape roll support cylinder is provided at the beginning of the negative pressure adsorption platform, and the tape roll support cylinder guides the free end of the tape roll to the end of the negative pressure adsorption platform.
[0012] Furthermore, two auxiliary adsorption areas are respectively arranged at the beginning and end of the negative pressure adsorption platform. A pressure wheel is provided at the beginning of the negative pressure adsorption platform to press the tape, and the pressure wheel rotates to send the tape to the end of the negative pressure adsorption platform.
[0013] Furthermore, one or both of the secondary adsorption areas is provided with a tape stripping plate for removing excess tape, and the tape stripping plate leaves the secondary adsorption area to take away the excess tape.
[0014] The operator first pulls out an appropriate amount of tape, places it flat on the negative pressure adsorption table, and then sticks the LED substrate to the effective part of the tape. During this process, the negative pressure adsorption table adsorbs the tape to keep it flat and not easy to wrinkle, thereby improving the firmness and flatness of the adhesive. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the auxiliary tool.
[0016] Figure 2 yes Figure 1 A partial enlarged view of the Figure 1 Part A.
[0017] Figure 3 This is a schematic diagram of tape being laid flat on a negative pressure adsorption table, with the tape peeling plate lifted up.
[0018] Figure 4 This is a schematic diagram of the excess portion of the front end of the tape being spread flat on the front secondary adsorption area, in which the tape stripping plate has pressed the excess portion of the front end of the tape.
[0019] Figure 5 This is a schematic diagram of the LED substrate being attached to the tape.
[0020] Figure 6 yes Figure 5 A partial enlarged view of the Figure 5 Part B.
[0021] Figure 7 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 8 is a schematic diagram of a substrate positioning member. DETAILED DESCRIPTION
[0023] The present invention is further described in detail below in conjunction with specific embodiments.
[0024] LED substrate tape auxiliary tools see Figure 1 , including a negative pressure adsorption platform 1 and a negative pressure fan 100 for providing negative pressure to the negative pressure adsorption platform 1. The negative pressure adsorption platform 1 includes a main adsorption area 11 and front and rear auxiliary adsorption areas 12 and 13 located on the front and rear sides of the main adsorption area 11, respectively. A front guide cutting slit 14 is left between the front end 111 of the main adsorption area 11 and the front auxiliary adsorption area 12, and a rear guide cutting slit 15 is left between the rear end 112 of the main adsorption area 11 and the rear auxiliary adsorption area 13. The front and rear guide cutting slits 14 and 15 are both in the left and right directions. A cutter 2 is installed on the left side of the negative pressure adsorption 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 inserted into the front and rear guide cutting slits 14 and 15, and are respectively equipped with right-facing blades 22, as shown in FIG. Figure 2 As shown. A pressure wheel 52 is rotatably mounted on the secondary adsorption area 13 at the rear, and the pressure wheel 52 presses on the top surface of the secondary adsorption area 13 at the rear; a tape stripping plate 6 is hingedly connected to the secondary adsorption area 12 at the front, as shown. Figure 4 The adhesive tape stripping plate 6 is provided with a torsion spring 60 at the hinge axis. The torsion spring 60 applies a torsion force to the adhesive tape stripping plate 6 so that it is pressed against the top surface of the auxiliary adsorption area 12 in front. Figure 1 , a tape roll support cylinder 51 is provided at the rear side of the negative pressure adsorption platform 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:
[0025] See Figure 3With the front-to-back direction as the longitudinal direction, the tape roll 90 is manually moved. The tape roll support tube 51 guides the tape roll 90 to rotate, and the free end 905 of the tape roll 90 is longitudinally fed 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. The negative pressure fan 100 is activated to provide negative pressure to the negative pressure adsorption platform 1. The free end 905 of the tape roll 9 is then fed between the pressure roller 52 and the secondary adsorption area 13 located behind it, allowing the pressure roller 52 to press against the free end 905 of the tape roll 9. Because the negative pressure adsorption platform 1 adsorbs the free end 905 of the tape roll 9 and the contact area between the pressure roller 52 and the adhesive surface 901 of the tape roll 90 is small, the tape roll 90 will not stick to the pressure roller 52. Rotating the pressure roller 52 overcomes the lateral friction between the protective surface of the tape roll 90 and the negative pressure adsorption platform 1, and the free end 905 of the tape roll 90 is longitudinally fed forward to the front side of the pressure roller 52. Manually lift the tape stripping plate 6 and pull the free end 905 of the tape roll 90 forward longitudinally to the front secondary adsorption zone 12, thereby pulling out a section of longitudinal tape 9 in the front-to-back direction. The rear end of the longitudinal tape 9 is connected to the tape roll 90 and serves as the starting end of the longitudinal tape 9. The free end 905 of the tape roll 90 serves as the front end and also the end of the longitudinal tape 9. Accordingly, the rear end of the negative pressure adsorption platform 1 is the starting end 101, and the front end is the end 102. The rear end 112 of the main adsorption zone 11 is the starting end, and the front end 111 is the end. The front secondary adsorption zone 12 is located at the end 102 of the negative pressure adsorption platform 1 and is also located in front of the end of the main adsorption zone 11. The rear secondary adsorption zone 13 is located at the starting end 101 of the negative pressure adsorption platform 1 and is also located behind the starting end of the main adsorption zone 11. The tape roll support cylinder 51 and the pressure wheel 52 are both located at the starting end 101 of the negative pressure adsorption platform 1. The tape roll support cylinder 51 guides the free end 905 of the tape roll 90 to the end 102 of the negative pressure adsorption platform by guiding the tape roll 90 to rotate. The negative pressure adsorption platform 1 serves as a tape placement platform, and the longitudinal tape 9 is laid flat on it; the main adsorption area 11 of the negative pressure adsorption platform 1 adsorbs the protective surface of the effective middle part 91 of the longitudinal tape 9, the auxiliary adsorption area 12 in the front adsorbs the protective surface of the excess part 92 at the front end of the longitudinal tape 9, and the auxiliary adsorption area 13 in the rear adsorbs the protective surface of the excess part 93 at the rear end of the longitudinal tape 9, so that the longitudinal tape 9 remains flat. Figure 4 , put down the tape stripping plate 6, and the tape stripping plate 6 is driven by the torsion spring 60 to be pressed onto the adhesive surface 921 of the excess portion 92 at the front end of the longitudinal tape 9, and is adhered to the excess portion 92 at the front end of the tape 9, thus completing the preparation work.
[0026] See Figure 5 , stick the LED ceramic substrate 8 to the sticking surface 911 of the middle effective part 91 of the longitudinal tape 9 (see Figure 3) during this process, the negative pressure adsorption platform 1 adsorbs the longitudinal tape 9, keeping it flat and preventing it from curling or wrinkling, thus improving the adhesive firmness and flatness. After pasting, the excess portions 92 and 93 at the front and rear ends of the longitudinal tape 9 extend from the edge of the LED ceramic substrate 8 to the front and rear sides of the LED ceramic substrate 8. 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 111 and 112 of the main adsorption area 11, 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 at the rear end of the tape 9 serves as the new free end 93 of the tape roll 90. Because the adhesive force between the effective part 91 of the tape 9 and the LED ceramic substrate 8 is stronger than the negative pressure adsorption force, and the adhesive force between the excess part 92 at the front end of the tape and the tape stripping plate 6 is stronger than the negative pressure adsorption force, there is no need to stop the negative pressure fan 100. The LED ceramic substrate 8 and the effective part 91 of the tape 9 adhered thereto can be separated by directly picking up the LED ceramic substrate 8 by hand (see Figure 3 ) together, then directly turn and lift the tape stripping plate 6 by hand to move the tape stripping plate 6 upward and away from the front secondary adsorption area 12, and the tape stripping plate 6 will take away the excess part 92 of the front end of the tape 9 pasted thereon, thus completing the work of sticking the tape 9.
[0027] See Figure 4 and Figure 7 The excess portion 92 of the tape 9 at the front end is stuck to the tape stripping plate 6 and will not stick to the operator's hands or significantly affect the tape stripping plate 6. Therefore, cleaning is not necessary and the next taping operation can be started directly. The tape stripping plate 6 remains raised, and the operator then pulls the new free end 93 of the tape roll 90 forward onto the forward secondary suction zone 12, thereby pulling out another longitudinal section of tape. The subsequent operation is the same as for the initial taping operation and will not be described in detail. The operator cleans the excess portion 92 of the tape 9 at the front end of the tape stripping plate 6 only after completing multiple taping operations.
[0028] See Figure 5During 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 negative pressure adsorption platform 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 6 , including a mounting block 33, which is mounted on the side wall of the auxiliary adsorption area 12 at the front, and has a mounting hole in the front-to-back direction (not shown in the figure due to viewing angle), through which a sliding rod 34 is passed, with the front and rear ends 341 and 342 of the sliding rod 34 extending out of the mounting hole respectively. The front end 341 of the sliding rod 34 is larger than the mounting hole and cannot pass through the mounting hole backward; the rear end 342 of the sliding rod 34 is mounted with the substrate positioning member 3; the sliding rod 34 is covered with a positioning spring 35, which 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 5 and Figure 6First, 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 6 and Figure 8 If the LED ceramic substrate 8 is positioned to the right, its right edge 803 will push against the second guide surface 304 of the substrate positioning member 3. This guide surface 304 guides the LED ceramic substrate 8 downward and leftward toward the second positioning surface 302, thereby positioning the LED ceramic substrate 8 in the correct position. 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 corner 81 and rear right corner 82 of the LED ceramic substrate 8, respectively, jointly clamping the LED ceramic substrate 8 laterally. The front substrate positioning member 3 laterally restrains 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 laterally restrains the LED ceramic substrate 8 in the rear and right directions, thereby achieving lateral positioning of the LED ceramic substrate 8.
[0030] (2) See Figure 6 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, and then Figure 5 , 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 5 、 Figure 6Release 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 rest on the front right corner 81 and rear right corner 82 of the LED ceramic substrate 8, respectively, and together laterally clamp the LED ceramic substrate 8. The front substrate positioning member 3 laterally 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 laterally 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 5 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 7 As shown, the cutter 2 is operated to cut away the excess portions 92 and 93 of the tape 9. As the cutter 2 cuts, the two blades 22 pass horizontally across the front and rear edges 801 and 802 of the LED ceramic substrate 8, respectively. If the two substrate retaining members 3 were to rest against the front right corner 81 and rear right corner 82 of the LED ceramic substrate 8, they would block the cutter 2. To ensure that the cutter 2 can successfully remove the excess portions 92 and 93 of the tape 9, before operating the cutter 2, use an object (not shown) to prop the two substrate retaining members 3 apart. This will allow the front retaining member 3 to move forward and the rear retaining member 3 to move backward. This will prevent the two retaining members 3 from blocking the cutter 2.
[0032] See Figure 3 In this embodiment, since the longitudinal tape 9 is pulled out from the tape roll 90, the excess portion 93 at the rear end is cut off and used as the new free end 93 of the tape roll 90, and no cleaning is required, so the tape stripping plate 6 is as shown in FIG. Figure 4 , only pressing the redundant portion 92 at the front end of the longitudinal tape 9 without pressing the redundant portion 93 at the rear end of the longitudinal tape 9. Figure 3 、 Figure 4 The operator first cuts out a section of longitudinal tape 9 and then spreads it flat on the negative pressure adsorption table 1. After cutting, the excess parts 92 and 93 at the front and rear ends of the longitudinal tape 9 need to be cleaned. Then the tape stripping plate 6 is correspondingly changed to press onto the adhesive surface of the excess parts 92 and 93 at the front and rear ends of the longitudinal tape 9 at the same time. After cutting, the tape stripping plate 6 is lifted to take away the excess parts 92 and 93 at the front and rear ends of the longitudinal tape 9.
[0033] 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 attaching adhesive tape to LED substrates, which can absorb adhesive tape and is characterized by: A negative pressure adsorption platform is provided, which adsorbs the protective surface of the flatly placed tape so that the LED substrate can be pasted to the adhesive surface of the effective part of the tape. The negative pressure adsorption platform is provided with a main adsorption area for adsorbing the protective surface of the effective part of the tape, and two auxiliary adsorption areas are respectively provided at the beginning and end of the main adsorption area to adsorb the excess parts of the beginning and end of the tape. The negative pressure adsorption platform is provided with a cutter, which cuts off the excess parts of the beginning and end of the tape horizontally at the beginning and end of the main adsorption area.
2. The auxiliary tool according to claim 1, characterized in that: A cutting guide is left between the main adsorption area and the auxiliary adsorption area. The cutter moves along the cutting guide through the beginning and the end of the main adsorption area to cut off the redundant part of the tape.
3. The auxiliary tool according to claim 1, characterized in that: A substrate positioning piece for lateral positioning of the LED substrate is installed on the negative pressure adsorption table.
4. The auxiliary tool according to claim 3, characterized in that: The substrate positioning member specifically limits the LED substrate laterally in at least two non-parallel directions, thereby achieving lateral positioning of the LED substrate.
5. The auxiliary tool according to claim 4, characterized in that: The substrate positioning piece is angular and rests on the corner of the LED substrate.
6. The assisting tool according to any one of claims 3 to 5, characterized in that: There are two opposite substrate positioning pieces that together laterally clamp the LED substrate.
7. The auxiliary tool according to claim 5, characterized in that: The substrate positioning piece is specifically in a right-angle shape.
8. The auxiliary tool according to claim 1, characterized in that: A tape roll support cylinder is provided at the beginning of the negative pressure adsorption platform, and the tape roll support cylinder guides the free end of the tape roll to the end of the negative pressure adsorption platform.
9. The auxiliary tool according to claim 1, characterized in that: The two auxiliary adsorption areas are respectively arranged at the beginning and end of the negative pressure adsorption platform. A pressure wheel is provided at the beginning of the negative pressure adsorption platform to press the tape, and the pressure wheel rotates to send the tape to the end of the negative pressure adsorption platform.
10. The auxiliary tool according to claim 1, characterized in that: One or two of the secondary adsorption areas are provided with a tape stripping plate for pasting excess tape. The tape stripping plate leaves the secondary adsorption area to take away the excess tape.