LED side light support discharging and stacking device with self-adaptive buffering function

Abstract

The invention belongs to the technical field of LED packaging equipment, and particularly relates to an LED side light support discharging and stacking device with a self-adaptive buffering function, the LED side light support discharging and stacking device comprises a base, a supporting seat is arranged at the top of the base, and a sliding rail is arranged on one side of the supporting seat. Specifically, the linkage assembly converts reciprocating motion of the first suction cup machine into one-way intermittent rotation of an intermittent fluted disc, and a bearing plate and the material receiving box are driven to descend step by step through a lead screw, a sliding block and a slope transmission pair. The descending distance each time is accurately equal to the sum of the thickness of the side light support plate and the combined thickness of the buffer plate and the convex part, due to the incomplete gear design of the fluted disc and the one-way conversion characteristic of the reciprocating hole, it is guaranteed that idling is conducted only in the discharging stroke driving descending process and the return stroke process, invalid movement is effectively filtered, and therefore each support is released at the fixed height; therefore, zero-impact stacking is realized, and the material receiving surface is kept flush with the receiving surface in the material receiving box.

Description

Technical Field

[0001] This invention belongs to the field of LED packaging equipment technology, and particularly relates to an LED side light bracket unloading and stacking device with adaptive buffer. Background Technology

[0002] As the core carrier in the LED packaging process, the LED bracket's material placement is a crucial step in ensuring product appearance, pin accuracy, and subsequent packaging yield. Effectively preventing bracket surface scratches, pin deformation, and silver layer damage during stacking, while ensuring uniform and stable interlayer pressure, is an important technical direction for improving packaging yield.

[0003] In existing technologies, automated LED bracket unloading and stacking equipment still has significant shortcomings in practical applications, as follows: First: When existing automated stacking equipment stacks LED brackets layer by layer, it usually uses fixed pressure parameters for pressing stroke. As the number of stacked layers increases, the cumulative load on the lower brackets increases continuously, while the equipment's stacking action maintains the same pressing speed and impact force. This rigid transmission mechanism means that the instantaneous impact load generated when the top bracket is stacked cannot be effectively buffered or attenuated. Instead, it acts directly on the pins of the bottom bracket through the rigid stacking system, which can easily cause cumulative fatigue deformation of the bottom bracket pins, seriously affecting the coplanarity accuracy of the brackets, and leading to poor soldering or reduced yield in subsequent packaging processes. Second: In the actual production process of LED brackets, due to slight fluctuations in incoming materials or previous processes, there may be micron-level height differences in the bracket pins themselves. The pressure head or support platform of existing stacking equipment is usually a rigid planar structure. When the upper brackets are stacked, the rigid pressure head will apply pressure evenly to the surface of the lower bracket, but it cannot adaptively compensate for the micro-height difference between the pins. This causes the pins with higher heights to bear excessive concentrated stress, resulting in local plastic deformation or damage to the silver plating layer, while the pins with lower heights may have stability problems in subsequent processes due to poor contact. Existing technology lacks a micro-elastic compensation structure that can automatically distribute the interlayer pressure. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an LED side light bracket unloading and stacking device with adaptive buffer.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows: This invention discloses an LED sidelight bracket unloading and stacking device with adaptive buffer, comprising a base, a support seat on the top of the base, a slide rail on one side of the support seat, a first suction cup mounted on the slide rail, a receiving box mounted on the base, and a sidelight bracket plate disposed inside the receiving box; including: A lifting and receiving assembly is provided on one side of the support base and is used to support and drive the receiving box to lift and lower. A linkage component, mounted on the support base, is used to convert the travel distance of the first suction cup machine into the power to drive the lifting and receiving component to descend. An alignment buffer assembly is disposed on the other side of the support base and is used to buffer and align the side light support plate when placing the side light support plate into the receiving box.

[0006] Furthermore, the lifting and supporting assembly includes: A fixing plate is installed directly below the support base; An intermittent toothed disc is rotatably connected to the rear end of the fixed plate; A lead screw, one end of which is fixedly installed at the front end of the intermittent gear plate, and the other end of which rotates through the inside of the fixed plate; The slider has an overall L-shaped structure and is slidably connected to the top of the base via a slide rail; The first inclined plate, which has a triangular structure, is installed on the top of the slider; A nut is installed on the horizontal end of the slider and is threaded to one end of the lead screw; The first reset spring rod, in a plurality of them, is mounted on the base in a rectangular shape; A receiving plate, slidably connected to the top of the first reset spring rod, is used to place the receiving box; The second inclined plate is installed below the receiving plate and is in contact with the first inclined plate.

[0007] Furthermore, the first reset spring rod adopts an adjustable elastic support structure. Within the maximum stacking layer and rated working range set by the device, the initial preload of the first reset spring rod is not less than the total weight of the receiving plate, the receiving box, and all side light support plates under full load.

[0008] Furthermore, the linkage component includes: A T-shaped plate is installed at the middle of the rear end of the fixed plate; The reciprocating rod is slidably connected to the horizontal end of the T-shaped plate via a slide rail; The reciprocating block has an overall L-shaped structure. Its vertical end is fixedly connected to the left end of the reciprocating rod, and its horizontal end is fixedly connected to the rear end of the first suction cup machine. A turntable is rotatably connected to the vertical end of the T-shaped plate; A positioning rod is installed below the turntable; A rotating block is rotatably connected to the T-shaped plate. A reciprocating hole is provided below the rotating block, and the positioning rod is slidably connected in the reciprocating hole. A toothed segment is installed on top of the rotating block; A toothed end is installed below the reciprocating rod, and the toothed end meshes with the toothed section; A toothed disc is rotatably connected to the fixed plate, and a connecting rod is installed between the toothed disc and the turntable; The outer wall of the intermittent toothed disc has intermittent tooth holes, and the toothless disc abuts against the intermittent tooth holes.

[0009] Furthermore, L-shaped slide rails are installed on the top left and right ends of the receiving plate, and second reset spring rods are symmetrically arranged above the L-shaped slide rails. L-shaped clamping blocks are installed on the opposite side of the second reset spring rods. The vertical ends of the L-shaped clamping blocks are slidably connected to the receiving plate. Clamping grooves are opened on the lower left and right ends of the receiving box, and the horizontal ends of the L-shaped clamping blocks are clamped in the clamping grooves.

[0010] Furthermore, the top of the horizontal end of the L-shaped clamping block is provided with a bevel.

[0011] Furthermore, the alignment buffer component includes: The second suction cup is slidably connected to the right side of the support base; A cushioning pad box, located on the upper right side of the base, is used to store cushioning plates; Several buffer plates are placed inside the buffer pad box for use between two adjacent layers of side light support plates; The protrusions are arranged in a rectangular array and installed at the upper and lower ends of the buffer plate; A through hole is provided on the side light bracket plate corresponding to the position of the protrusion, the protrusion passes through the inside of the through hole, and the protrusion matches the side wall of the through hole.

[0012] Furthermore, the protrusion adopts a tapered structure design; Furthermore, when the protrusion is inserted into the through hole and abuts against the hole wall, a clearance is maintained between the bottom wall of the buffer plate and the pin of the side light bracket plate.

[0013] Furthermore, the transmission ratio of the linkage component is matched with the displacement conversion coefficient of the lifting and receiving component, so that for each reciprocating motion of the first suction cup machine, the vertical distance by which the receiving plate drives the receiving box to descend is equal to the sum of the thickness of the side light bracket plate, the buffer plate, and the protrusion combination.

[0014] Compared with existing technologies, the LED side-light bracket unloading and stacking device with adaptive buffer described in this invention has the following advantages: 1. This invention achieves precise, step-by-step descent of the receiving box through the purely mechanical cooperation of the lifting and receiving assembly and the linkage assembly. Specifically, the linkage assembly converts the reciprocating motion of the first suction cup machine into the unidirectional intermittent rotation of the intermittent toothed disc. The receiving plate and receiving box are driven to descend step-by-step through the lead screw, slider, and inclined plane transmission pair. The descent distance is precisely equal to the sum of the thickness of the side light bracket plate and the combined thickness of the buffer plate and the protrusion. Due to the incomplete gear design of the toothed disc and the unidirectional conversion characteristic of the reciprocating hole, the descent is only driven during the feeding stroke, and the return stroke is idle, effectively filtering out invalid motion. This ensures that each side light bracket is released at a fixed height and remains flush with the receiving surface inside the receiving box, achieving zero-impact stacking and eliminating the impact load during the stacking process. The pins of the bottom side light bracket no longer suffer cumulative fatigue deformation, and the subsequent packaging yield is significantly improved.

[0015] 2. This invention utilizes a second suction cup machine working in conjunction with the first suction cup machine to lay a buffer plate with a conical protrusion between each layer of sidelight brackets. The conical protrusion has multiple functions: First, the diameter of the top of the cone is smaller than that of the through hole, which can automatically push the sidelight bracket to the center position during insertion, achieving a self-centering function and ensuring that each layer of sidelight bracket is accurately positioned. Second, the gradual transition from point contact to surface contact on the conical surface makes the insertion resistance increase smoothly, preventing the sidelight bracket from bouncing, and there are no sharp edges to scratch the coating. Third, the conical surface forms an annular contact with the inner wall of the through hole, and with the appropriate cone angle, a limiting fit is achieved to prevent vibration from causing the sidelight bracket to shift. More importantly, a suspended gap is maintained between the bottom wall of the buffer plate and the pins of the sidelight bracket, so that the pins are completely separated from the force path. The weight of the upper layer is directly transferred to the sidelight bracket body through the protrusion, and the pins are not subjected to any pressure. No matter what kind of microscopic height difference exists in the pins, there will be no stress concentration or plastic deformation, which solves the technical problem that traditional rigid pressure heads cannot compensate for pin height differences. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the receiving box of the present invention; Figure 4 This is an exploded view of the receiving box and receiving plate of the present invention; Figure 5 This is a schematic diagram of the linkage component of the present invention; Figure 6 This is a schematic diagram of the intermittent toothed disc of the present invention; Figure 7 This is a top view of the overall structure of the present invention; Figure 8 This is a schematic diagram of the buffer plate of the present invention; Figure 9 yes Figure 3 A magnified view of part A in the image.

[0017] The markings in the diagram are as follows: 1. Base; 11. Support base; 12. Slide rail; 13. First suction cup machine; 14. Material receiving box; 140. Clamping slot; 15. Side light bracket plate; 150. Through hole; 2. Lifting and receiving assembly; 21. Fixed plate; 22. Intermittent gear plate; 23. Lead screw; 24. Slider; 25. First inclined plate; 26. Nut; 27. First return spring rod; 28. Receiving plate; 29. ​​Second inclined plate; 211. Linkage assembly; 212. T-shaped plate; 213. Reciprocating rod; 2131. Reciprocating block; 214. Turntable; 215. Positioning rod; 216. Rotating block; 217. Toothed section; 218. Gear-deficient plate; 221. L-shaped slide rail; 222. Second return spring rod; 223. L-shaped clamping block; 3. Alignment buffer assembly; 31. Second suction cup machine; 32. Buffer pad box; 33. Buffer plate; 34. Protrusion. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] See Figures 1-6 As shown, the present invention provides an LED side-light bracket unloading and stacking device with adaptive buffer, including a base 1, a support seat 11 on the top of the base 1, a slide rail 12 on one side of the support seat 11, a first suction cup machine 13 on the slide rail 12, a receiving box 14 on the base 1, and a side-light bracket plate 15 inside the receiving box 14; a lifting and supporting assembly 2 is disposed on one side of the support seat 11 for supporting and driving the receiving box 14 to lift and lower; the lifting and supporting assembly 2 includes: a fixed plate 21, installed directly below the support seat 11; an intermittent toothed disc 22, rotatably connected to the rear end of the fixed plate 21; a lead screw 23, one end of which is fixedly installed at the front end of the intermittent toothed disc 22, and the other end of which rotatably passes through the inner side of the fixed plate 21; and a slider 24, which is L-shaped and slidably connected to the top of the base 1 through the slide rail 12. The first inclined plate 25, which has a triangular structure, is installed on the top of the slider 24; the nut 26 is installed on the horizontal end of the slider 24 and is threaded to one end of the lead screw 23; there are several first return spring rods 27, which are rectangular and installed on the base 1; the receiving plate 28 is slidably connected to the top of the first return spring rods 27 and is used to place the receiving box 14; the second inclined plate 29 is installed below the receiving plate 28 and is in contact with the first inclined plate 25.

[0020] It should be noted that, in the initial state, the receiving plate 28 is in the highest position under the elastic force of the first reset spring rod 27, and the first inclined plate 25 and the second inclined plate 29 are in the maximum overlapping contact state. When the first suction cup machine 13 picks up the side light bracket plate 15 and moves to the right along the slide rail 12, it drives the intermittent gear plate 22 to rotate through the linkage component 211. The intermittent gear plate 22 drives the lead screw 23 to rotate, causing the nut 26 and the slider 24 to move away from the fixed plate 21. The slider 24 drives the first inclined plate 25 to move to the right in sync. The contact point between the first inclined plate 25 and the second inclined plate 29 moves towards the lower point of the inclined plane, and the support height of the second inclined plate 29 gradually decreases.

[0021] The receiving plate 28 falls down under the elastic force of the first reset spring rod 27, causing the receiving box 14 to descend a short distance. When the first suction cup machine 13 moves directly above the receiving box 14, there is a gap of less than 1mm between the uppermost surface of the material in the receiving box 14 and the bottom surface of the side light support plate 15. The first suction cup machine 13 releases the side light support plate 15, and the side light support plate 15 sits down smoothly, which can effectively reduce the impact force when landing, reduce bumps and deformation, and help achieve low impact and stable material feeding effect.

[0022] When the first suction cup machine 13 moves to the left during its return stroke, it drives the intermittent toothed disc 22 to rotate again through the linkage component 211, the slider 24 continues to move to the right, and the receiving plate 28 descends again to prepare for the next placement.

[0023] This cycle continues, with each side light bracket plate 15 placed and the receiving box 14 continuously descending, always keeping the release position of the side light bracket flush with the receiving surface, reducing the impact load during the stacking process and protecting the pins of the side light bracket from damage. This invention uses a linkage component 211 to convert the travel of the first suction cup machine 13 into the progressive descent force of the receiving box 14, ensuring that each side light support plate 15 is released at a fixed height. The uppermost surface of the receiving box 14 remains flush with or slightly lower than the release position of the side light support plate 15. When the side light support plate 15 is released, there is only a safe gap between it and the receiving surface, with no free fall distance or relative collision, eliminating the instantaneous impact load caused by rigid downward pressure in traditional equipment. The pins of the bottom side light support plate 15 no longer bear cumulative impact. Moreover, this invention adopts a stacking method where the side light supports are stationary and the receiving box 14 descends. Each layer of side light supports is placed independently and only bears its own weight. There is no pressure transmission between layers, eliminating the pressure effect of cumulative load on the bottom side light supports. All side light supports are subjected to uniform force.

[0024] See Figures 5-6 As shown, the first reset spring rod 27 adopts an elastic support structure with adjustable preload. Within the maximum stacking layer and rated working range set by the device, the initial preload of the first reset spring rod 27 is not less than the total weight of the receiving plate 28, the receiving box 14, and all the side light support plates 15 under full load. This ensures that the second inclined plate 29 can maintain stable contact and transmission with the first inclined plate 25 during normal material unloading and stacking.

[0025] It should be noted that the first reset spring rod 27 provides upward elastic support by relying on the preset preload to compensate for the weight increase during the stacking process. The structure matches the spring parameters according to the extreme full load condition, and retains sufficient elastic margin within the effective stroke to reduce the risk of separation caused by load changes.

[0026] Meanwhile, the mating inclined surfaces of the first inclined plate 25 and the second inclined plate 29 are arranged with a small inclination angle of 5° to 15° to form a self-locking zone of the inclined surfaces. A damping layer can also be set on the contact surface of the inclined surfaces to enhance the lateral friction resistance, improve the self-locking capability of the inclined surface transmission, reduce slippage, idle stroke and jamming, and avoid rebound, slippage and displacement of the inclined surfaces during the load-bearing process. This further ensures that each descent step is smooth and the response is consistent, and improves the overall adaptive feeding and layer stacking accuracy.

[0027] See Figures 6-7As shown, the linkage component 211 is mounted on the support base 11 and is used to convert the travel of the first suction cup machine 13 into the power to drive the lifting and receiving assembly 2 to descend. The linkage component 211 includes a T-shaped plate 212, which is installed in the middle of the rear end of the fixed plate 21; a reciprocating rod 213, which is slidably connected to the horizontal end of the T-shaped plate 212 via a slide rail 12; a reciprocating block 2131, which has an overall L-shaped structure, with its vertical end fixedly connected to the left end of the reciprocating rod 213 and its horizontal end fixedly connected to the rear end of the first suction cup machine 13; and a turntable 214, which is rotatably connected to the vertical end of the T-shaped plate 212. Positioning rod 215 is installed below turntable 214; rotating block 216 is rotatably connected to T-shaped plate 212, and a reciprocating hole is opened below rotating block 216, with positioning rod 215 slidably connected in the reciprocating hole; toothed section 217 is installed on top of rotating block 216; a toothed end is installed below reciprocating rod 213, and the toothed end meshes with toothed section 217; toothed disc 218 is rotatably connected to fixed plate 21, and a connecting rod is installed between toothed disc 218 and turntable 214; intermittent toothed disc 22 has intermittent toothed holes on its outer side wall, and toothed disc 218 abuts against the intermittent toothed holes.

[0028] It should be noted that when the first suction cup machine 13 moves to the receiving box 14 to release material, the first suction cup machine 13 drives the reciprocating rod 213 to make linear motion through the reciprocating block 2131. The toothed end of the lower end of the reciprocating rod 213 meshes and drives the toothed section 217 to swing, thereby driving the rotating block 216, the turntable 214 and the toothed disc 21 to rotate synchronously. At this time, the toothed section of the toothed disc 218 is aligned with the tooth hole position of the intermittent toothed disc 22 and meshes with each other, driving the intermittent toothed disc 22 to rotate through a fixed angle, realizing one indexing feed, so that the receiving box 14 drops one level accordingly.

[0029] When the first suction cup machine 13 returns to the left to reset, the reciprocating rod 213 moves in the opposite direction, and the rotating block 216 still swings in the opposite direction. However, due to the shift in the phase of the mechanism's movement, the toothed disc 218 enters the toothless arc idle section and disengages from the intermittent toothed disc 22, forming only a sliding contact and no longer outputting effective torque. Therefore, the intermittent toothed disc 22 remains stationary during the return stroke and will not rotate in the opposite direction, achieving a purely mechanical unidirectional indexing effect with only effective feeding drive and natural idle rotation during the return stroke.

[0030] This linkage component relies on the movement of the suction cup body as the power input, without the need to add motors, sensors and electronic control components. It completes unidirectional intermittent transmission by relying on the tooth distribution and swing phase matching. The action is stable and has strong anti-interference. It can ensure that for each piece of board placed, the receiving box 14 only descends once step by step, which matches the requirements of low-impact layered stacking.

[0031] It is worth noting that a reset motor is installed on the fixed plate 21, and the output end of the reset motor is connected to the toothed disc 218 for transmission. When the receiving box 14 is full of the side light support plate 15, the reset motor drives the toothed disc 218 to rotate in the opposite direction, and drives the turntable 214 to rotate in the opposite direction through the connecting rod, so that the lifting receiving assembly 2 drives the receiving plate 28 and the receiving box 14 to rise and reset.

[0032] See Figure 5 As shown, L-shaped slide rails 221 are installed on the top left and right ends of the receiving plate 28. A second reset spring rod 222 is symmetrically arranged above the L-shaped slide rail 221. An L-shaped clamping block 223 is installed on the opposite side of the second reset spring rod 222. The vertical end of the L-shaped clamping block 223 is slidably connected on the receiving plate 28. A clamping groove 140 is opened on the lower left and right ends of the receiving box 14. The horizontal end of the L-shaped clamping block 223 is clamped in the clamping groove 140.

[0033] It should be noted that when an empty receiving box 14 is placed on the receiving plate 28, with the clamping slots 140 on both sides of the bottom of the receiving box 14 aligned with the horizontal ends of the L-shaped clamping blocks 223, the elastic force of the second reset spring rod 222 drives the clamping blocks to slide inward, and their horizontal ends automatically insert into the clamping slots 140 at the bottom of the receiving box 14, firmly fixing the receiving box 14 to the receiving plate 28. As the clamping blocks on both sides clamp inward synchronously, the receiving box 14 automatically centers, ensuring its precise and fixed position on the receiving plate 28. Through the insertion and extraction of the L-shaped clamping blocks 223 and the clamping slots 140 at the bottom of the receiving box 14, and with the automatic clamping of the second reset spring rod 222, the receiving box 14 can be replaced by hand without tools, greatly improving the continuous operation efficiency of the equipment.

[0034] See Figure 5 As shown, the top of the horizontal end of the L-shaped clamping block 223 is provided with a bevel.

[0035] It should be noted that in the initial state, the second reset spring rods 222 on both sides release the elastic force, so that the top of the inclined side between the opposite L-shaped clamping blocks 223 just abuts against the bottom inner wall of the clamping groove 140. When the receiving box 14 is placed, the receiving box 14 moves down along the inclined side and automatically pushes open the L-shaped clamping blocks 223 on both sides, without the need to manually push the L-shaped slide rail 221.

[0036] See Figures 7-8As shown, the alignment buffer assembly 3 is disposed on the other side of the support base 11 and is used to buffer and align the side light support plate 15 when it is placed into the receiving box 14. The alignment buffer assembly 3 includes a second suction cup 31, which is slidably connected to the right side of the support base 11; a buffer pad box 32, which is disposed on the right side of the base 1 and is used to store the buffer plate 33; several buffer plates 33 are placed inside the buffer pad box 32 and are used to lay between two adjacent layers of side light support plates 15; protrusions 34 are installed in a rectangular array at the upper and lower ends of the buffer plate 33; a through hole 150 is provided on the side light support plate 15 corresponding to the position of the protrusion 34, and the protrusion 34 passes through the inside of the through hole 150, and the protrusion 34 matches the side wall of the through hole 150.

[0037] It should be noted that, in the initial state, the second suction cup machine 31 picks up a buffer plate 33 from the buffer pad box 32 and places it on the bottom wall of the receiving box 14; after the first suction cup machine 13 places a side light support plate 15 inside the receiving box 14 and returns, the second suction cup machine 31 picks up the next buffer plate 33 from the buffer pad box 32 again and lays it on top of the already placed side light support plate 15.

[0038] This process is repeated, with buffer plates 33 laid on both the upper and lower sides of each sidelight support plate 15. The buffer plates 33 position the sidelight support plate 15 through the cooperation of the protrusions 34 and the through holes 150, and keep the pins of the sidelight support plate 15 in a pressure-free contact state with the adjacent layers, so as to avoid the pins from deforming due to pressure. The alignment buffer assembly 3 of the present invention works in concert with the dual suction cup machine to lay buffer plates 33 with an array of protrusions 34 between each support layer. The protrusions 34 cooperate with the pin holes of the through holes 150 of the sidelight support to achieve precise alignment, and at the same time, make the pins of the sidelight support completely free from the interlayer pressure transmission path, thus solving the stress concentration and deformation problem caused by the microscopic height difference of the pins from the root.

[0039] See Figures 8-9 As shown, the protrusion 34 adopts a tapered structure design; It should be noted that the core function of the tapered structure design has a third aspect; Firstly, the diameter of the conical tip is less than 150mm from the through hole. Even if there is a slight positional deviation when the side light bracket is placed, the conical surface can generate a radial force during the insertion process, automatically pushing the side light bracket to the center position, achieving a self-centering function, and ensuring that each layer of side light brackets is accurately positioned. Secondly, the tapered surface gradually transitions from point contact to line contact and surface contact, which makes the insertion resistance increase smoothly and avoids the side light bracket bouncing or shifting caused by sudden resistance changes; at the same time, the tapered structure has no sharp edges and corners, so it will not scratch the coating on the inner wall of the through hole 150 and prevent debris contamination. Thirdly: The conical surface forms an annular contact with the inner wall of the through hole 150, with a large contact area and tight fit. With a suitable conical angle design, a limiting fit can be achieved to prevent the side light bracket from shifting due to vibration during stacking.

[0040] When the protrusion 34 is inserted into the through hole 150 and abuts against the hole wall of the through hole 150, a clearance is maintained between the bottom wall of the buffer plate 33 and the pin of the side light bracket plate 15.

[0041] It should be noted that this design, by maintaining a gap between the bottom wall of the buffer plate 33 and the pins, completely transfers the load-bearing and positioning functions of the side light bracket to the mating structure of the protrusion 34 and the through hole 150, thereby removing the pins from the force path, solving the problems of pin deformation and stress concentration, and achieving truly lossless stacking.

[0042] The transmission ratio of the linkage component 211 is matched with the displacement conversion coefficient of the lifting and receiving component 2, so that the vertical distance by which the receiving plate 28 drives the receiving box 14 to descend is equal to the sum of the combined thickness of the side light bracket plate 15, the buffer plate 33, and the protrusion 34, for each reciprocating motion of the first suction cup machine 13.

[0043] It should be noted that by precisely designing the parameters of each transmission component, including the number of teeth in the toothed section 217, the shape and size of the reciprocating hole, the arc length of the toothed area of ​​the toothed disc 218, the number of teeth in the intermittent toothed disc 22, the pitch of the lead screw 23, and the slope angle of the first inclined plate 25, the vertical distance by which the receiving plate 28 drives the receiving box 14 to descend after each reciprocating motion of the first suction cup machine 13 is exactly equal to the sum of the thickness of the side light support plate 15 and the combined thickness of the buffer plate 33 and the protrusion 34. At the same time, reasonable clearances are reserved for each transmission pair, and a mechanical fine-tuning compensation structure is set up to perform micro-calibration of the displacement of a single transmission.

[0044] Based on this design, the vertical distance by which the receiving plate 28 drives the receiving box 14 to descend after each reciprocating motion of the first suction cup machine 13 is controlled to be the sum of the thickness of the side light support plate 15 and the combined thickness of the buffer plate 33 and the protrusion 34. The allowable error range is controlled within ±0.05mm. Even if a small amount of wear gap is generated by long-term reciprocating operation, the accumulated error can be eliminated by fine-tuning the compensation structure to ensure stable displacement accuracy throughout the entire process.

[0045] Through the above design, it is ensured that every time the side light bracket and buffer plate 33 are placed, the uppermost surface inside the receiving box 14 always maintains the same horizontal plane or a very small safety gap with the release surface of the side light bracket of the first suction cup machine 13 and the release surface of the buffer plate 33 of the second suction cup machine 31, so as to achieve zero-impact stacking of the side light bracket and the buffer plate 33.

[0046] Working principle: When the present invention is working, firstly, each time the first suction cup machine 13 places a side light bracket, the intermittent toothed disc 22 is driven to rotate through the linkage component 211, which drives the lead screw 23 to rotate, causing the slider 24 and the first inclined plate 25 to move horizontally. Through the inclined surface cooperation, the horizontal movement is converted into the vertical descent of the receiving plate 28, which drives the receiving box 14 to descend precisely by the sum of the thickness of the side light bracket and the thickness of the buffer plate 33, so that the release surface of the side light bracket is always flush with the receiving surface inside the receiving box 14. Using the reciprocating motion of the first suction cup machine 13 as a power source, the reciprocating linear motion of the suction cup machine is converted into the unidirectional intermittent rotation of the intermittent toothed disc 22 through structures such as the reciprocating rod 213, rotating block 216, turntable 214, and toothed disc 218. This ensures that the receiving box 14 is driven to descend only during the feeding stroke, and idles during the return stroke, filtering out invalid motion and preventing the receiving box 14 from rising erroneously. The first suction cup machine 13 and the second suction cup machine 31 work together to lay a buffer plate 33 with a tapered protrusion 34 between each layer of side light brackets. The tapered protrusion 34 has a self-centering function, automatically guiding the side light bracket to be precisely aligned. The tapered surface and the through hole 150 of the side light bracket form an annular contact to achieve a limiting fit and prevent vibration displacement. More importantly, the bottom wall of the buffer plate 33 maintains a suspended gap with the pins of the side light bracket, so that the pins are completely separated from the force path. The weight of the upper layer is transferred to the side light bracket body through the protrusion 34, and the pins are not subjected to any pressure.

[0047] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An LED side-light bracket unloading and stacking device with adaptive buffer, comprising a base (1), characterized in that... The base (1) has a support seat (11) on its top, a slide rail (12) on one side of the support seat (11), a first suction cup machine (13) on the slide rail (12), a receiving box (14) on the base (1), and a side light bracket plate (15) inside the receiving box (14); including: The lifting and receiving assembly (2) is located on one side of the support base (11) and is used to support and drive the receiving box (14) to lift. Linkage component (211), provided on the support base (11), is used to convert the stroke of the first suction cup machine (13) into the power to drive the lifting and receiving component (2) to descend; The alignment buffer assembly (3) is disposed on the other side of the support base (11) and is used to buffer and align the side light support plate (15) when the side light support plate (15) is placed inside the receiving box (14).

2. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 1, characterized in that, The lifting and supporting assembly (2) includes: A fixing plate (21) is installed directly below the support base (11); Intermittent toothed disc (22) is rotatably connected to the rear end of the fixed plate (21); The lead screw (23) has one end fixedly installed at the front end of the intermittent gear disc (22), and the other end rotates through the inside of the fixed plate (21); The slider (24) has an overall L-shaped structure and is slidably connected to the top of the base (1) through the slide rail (12); The first inclined plate (25), which has a triangular structure, is installed on the top of the slider (24); A nut (26) is installed on the horizontal end of the slider (24) and is threaded to one end of the lead screw (23); The first reset spring rod (27) is several in number and is installed on the base (1) in a rectangular shape; The receiving plate (28) is slidably connected to the top of the first reset spring rod (27) and is used to place the receiving box (14). The second inclined plate (29) is installed below the receiving plate (28) and is in contact with the first inclined plate (25).

3. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 2, characterized in that, The first reset spring rod (27) adopts an elastic support structure that can be pre-tightened and adjusted. Within the maximum number of stacking layers and the rated working range set by the device, the initial pre-tightening force of the first reset spring rod (27) is not less than the total weight of the receiving plate (28), the receiving box (14), and all the side light support plates (15) under full load.

4. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 2, characterized in that, The linkage component (211) includes: T-shaped plate (212) is installed at the middle of the rear end of the fixed plate (21); The reciprocating rod (213) is slidably connected to the horizontal end of the T-shaped plate (212) via the slide rail (12); The reciprocating block (2131) has an overall L-shaped structure. Its vertical end is fixedly connected to the left end of the reciprocating rod (213), and its horizontal end is fixedly connected to the rear end of the first suction cup machine (13). Turntable (214) is rotatably connected to the vertical end of the T-shaped plate (212); A positioning rod (215) is installed below the turntable (214); A rotating block (216) is rotatably connected to the T-shaped plate (212). A reciprocating hole is provided below the rotating block (216), and the positioning rod (215) is slidably connected in the reciprocating hole. The toothed segment (217) is mounted on top of the rotating block (216); A toothed end is installed below the reciprocating rod (213), and the toothed end meshes with the toothed section (217); A toothed disc (218) is rotatably connected to the fixed plate (21), and a connecting rod is installed between the toothed disc (218) and the turntable (214); The intermittent toothed disc (22) has intermittent tooth holes on its outer side wall, and the toothless disc (218) abuts against the intermittent tooth holes.

5. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 2, characterized in that, The top left and right ends of the receiving plate (28) are equipped with L-shaped slide rails (221), and the top of the L-shaped slide rails (221) are equipped with symmetrically arranged second reset spring rods (222). The opposite side of the second reset spring rods (222) is equipped with L-shaped clamping blocks (223). The vertical end of the L-shaped clamping block (223) is slidably connected on the receiving plate (28). The bottom left and right ends of the receiving box (14) are provided with clamping grooves (140), and the horizontal end of the L-shaped clamping block (223) is clamped in the clamping groove (140).

6. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 5, characterized in that, The top of the horizontal end of the L-shaped clamping block (223) is provided with a bevel.

7. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 2, characterized in that, The alignment buffer component (3) includes: The second suction cup (31) is slidably connected to the right side of the support base (11); A cushioning box (32) is provided on the right side of the base (1) for storing a cushioning plate (33). Several buffer plates (33) are placed inside the buffer pad box (32) for use between two adjacent side light support plates (15); The protrusions (34) are arranged in a rectangular array and installed at the upper and lower ends of the buffer plate (33); The side light support plate (15) has a through hole (150) at the position corresponding to the protrusion (34). The protrusion (34) passes through the inside of the through hole (150), and the protrusion (34) matches the side wall of the through hole (150).

8. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 7, characterized in that, The protrusion (34) adopts a tapered structure design.

9. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 8, characterized in that, When the protrusion (34) is inserted into the through hole (150) and abuts against the hole wall of the through hole (150), a suspension gap is maintained between the bottom wall of the buffer plate (33) and the pin of the side light bracket plate (15).

10. The LED side-light bracket unloading and stacking device with adaptive buffer according to claim 7, characterized in that, The transmission ratio of the linkage component (211) is matched with the displacement conversion coefficient of the lifting and receiving component (2), so that for each reciprocating motion of the first suction cup machine (13), the vertical distance by which the receiving plate (28) drives the receiving box (14) to descend is equal to the sum of the combined thickness of the side light bracket plate (15), the buffer plate (33), and the protrusion (34).

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