CN111604221A - LED processing system with glue not easy to leak - Google Patents
LED processing system with glue not easy to leak Download PDFInfo
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- CN111604221A CN111604221A CN202010500030.4A CN202010500030A CN111604221A CN 111604221 A CN111604221 A CN 111604221A CN 202010500030 A CN202010500030 A CN 202010500030A CN 111604221 A CN111604221 A CN 111604221A
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- glue
- cavity
- piston
- stirring
- liquid inlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0295—Floating coating heads or nozzles
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Abstract
The invention discloses an LED processing system with glue not easy to leak, which comprises a base, a crystal expansion mechanism arranged on the base and a glue dispensing mechanism arranged on the base, wherein the crystal expansion mechanism comprises a first crystal expansion mechanism body and a second crystal expansion mechanism body; the glue dispensing mechanism comprises a glue gun frame capable of moving up and down, a glue gun arranged on the glue gun frame and a stirring cavity arranged in the glue gun; the crystal expansion mechanism comprises a placing platform for placing chip films, a stretching assembly for expanding crystals and a cutting piece for cutting redundant chip films, wherein the stretching assembly comprises a plurality of movable clamping arms arranged on the outer side of the placing platform; the base is provided with a cavity, and a synchronous transmission assembly matched with the movable clamping arm is arranged in the cavity; the glue gun is detachably connected with a glue dispensing head, and a telescopic assembly is arranged in the glue dispensing head; the glue gun is externally connected with a liquid inlet component; according to the invention, the telescopic assembly is arranged, so that the dispensing head is sealed by the telescopic assembly when not working; when the dispensing head works, the telescopic assembly does not influence the normal glue discharging of the dispensing head.
Description
Technical Field
The invention belongs to the technical field of LED lamps, and particularly relates to an LED processing system with glue not easy to leak.
Background
An LED, a short name for a light emitting diode, is a solid semiconductor device capable of converting electrical energy into visible light; the heart of the LED is a semiconductor chip, the chip is fixed on the bracket through a die bonding process, and then the chip is connected with a power supply to realize the light emission of the LED.
At present, glue dispensing machines are mostly adopted to dispense glue on a support, glue guns in the market generally only utilize atmospheric pressure to make glue in the glue guns not flow out when dispensing is not needed, the sealing performance is unreliable, and the problem of glue leakage is easy to occur.
Disclosure of Invention
The invention provides an LED processing system which overcomes the defects of the prior art and is not easy to leak glue.
In order to achieve the purpose, the invention adopts the following technical scheme: an LED processing system with glue not easy to leak comprises a base, a crystal expansion mechanism arranged on the base and a glue dispensing mechanism arranged on the base; the glue dispensing mechanism comprises a glue gun frame capable of moving up and down, a glue gun arranged on the glue gun frame and a stirring cavity arranged in the glue gun; the crystal expansion mechanism comprises a placing platform for placing chip films, a stretching assembly for expanding crystals and a cutting piece for cutting redundant chip films, wherein the stretching assembly comprises a plurality of movable clamping arms arranged on the outer side of the placing platform; the base is provided with a cavity, and a synchronous transmission assembly matched with the movable clamping arm is arranged in the cavity; the glue gun is detachably connected with a glue dispensing head, and a telescopic assembly is arranged in the glue dispensing head; the glue gun is externally connected with a liquid inlet component; the synchronous transmission assembly matched with the movable clamping arms is arranged in the cavity, so that the movable clamping arms can move synchronously, the chip film can be stretched towards all directions simultaneously, the stretching uniformity of the chip film is ensured, and the distance between chips on the chip film is also more uniform; the telescopic assembly is arranged in the dispensing head, so that the dispensing head is sealed by the telescopic assembly when dispensing is not needed, glue is prevented from leaking, and the telescopic assembly can contract inwards to open the dispensing head when dispensing is needed, so that the glue discharging dispensing head is not influenced; by arranging the liquid inlet assembly, water is injected into the glue gun, so that the glue in the glue gun is ensured to be kept at a proper concentration all the time, the glue gun cannot become viscous due to water loss, and the problem that the glue gun is blocked due to solidification of the glue is avoided; through will expand brilliant mechanism and glue the mechanism and install in same equipment with point to make this equipment can accomplish the work of expanding the brilliant of chip membrane, also can be competent at the gluey work of point to the support, less producer purchases the spending of machine.
Furthermore, the telescopic assembly comprises a telescopic piece capable of moving up and down, a sleeve matched with the telescopic piece and a reset piece arranged in the sleeve; the lower surface of the telescopic piece is arranged in a spherical surface; by arranging the telescopic assembly in the dispensing head, the dispensing head is sealed in the interval between two dispensing operations, and the glue cannot overflow; when dispensing is needed, the glue discharging dispensing head is not influenced, and the production is convenient; the opening and sealing of the dispensing head are realized through the arrangement of the telescopic piece, and the lower end of the telescopic piece is arranged in a spherical surface manner, so that the contact between the telescopic piece and the bracket is smoother, and the telescopic piece or the bracket is prevented from being damaged due to collision when the telescopic piece is in contact with the bracket; the telescopic function of the telescopic piece is realized through the arrangement of the resetting piece, and when the dispensing head enables the telescopic piece to shrink through pressing down, the resetting piece also plays a role in buffering, and the problem that the dispensing head is too fast to fall down to damage the support is avoided.
Furthermore, a convex edge is formed on the upper surface of the telescopic piece in an outward extending mode, and a limiting part matched with the convex edge is formed on the lower surface of the sleeve in an inward extending mode; the convex edge is provided with a first sealing element matched with the inner wall of the sleeve, and the limiting part is provided with a second sealing element and a scraping element matched with the outer surface of the telescopic element; the telescopic piece is prevented from being separated from the sleeve through the matching of the convex edge and the limiting part, so that the normal work of the dispensing head is ensured; the scraping part is arranged on the limiting part, so that when the telescopic part is retracted into the sleeve, the scraping part can scrape off glue attached to the surface of the telescopic part, and if the scraping part is not arranged to scrape off the glue, the glue can enter the sleeve to influence the matching of the telescopic part and the sleeve and the resetting effect of the resetting part; therefore, the material scraping part is arranged, so that the telescopic assembly can work normally, and the service life of the telescopic part is prolonged; through set up the second sealing member in spacing portion and set up first sealing member on protruding edge, further avoided inside glue infiltration telescopic component, and then guaranteed the normal work of point gum machine.
Furthermore, the scraping piece comprises a concave surface far away from the outer surface of the telescopic piece, a convex surface close to the outer surface of the telescopic piece, a fixed surface fixedly connected with the limiting part and a movable surface matched with the outer surface of the telescopic piece; the curvature of the convex surface is greater than the curvature of the concave surface; through the fixed connection between the fixed surface and the limiting part, when the telescopic piece moves up and down, the scraping piece is fixed on the limiting part and cannot move along with the telescopic piece; the scraping piece is fixed, and the movable surface is in close contact with the outer surface of the telescopic piece, so that when the telescopic piece rises, the movable surface is tightly attached to the outer surface of the telescopic piece and slides from top to bottom to scrape off glue attached to the outer surface of the telescopic piece; and the removal of extensible member may make scraping the material piece and take place serious deformation and change the orientation, loses the effect of scraping, so will scrape the material piece design and be close to the surface of extensible member for the convex surface, the surface of extensible member is kept away from to the concave surface, and the camber of convex surface is greater than the camber of concave surface, and then makes scraping the material piece and can not change the orientation because of the removal of extensible member, has guaranteed the normal work of scraping the material piece.
Further, the liquid inlet assembly comprises a liquid inlet hole formed in the glue gun, a one-way liquid inlet valve formed in the liquid inlet hole, a liquid inlet pipe connected with the one-way liquid inlet valve, and an adjusting switch arranged on the liquid inlet pipe; the glue gun outer wall is provided with the liquid inlet hole communicated with the inside of the glue gun, and then a proper amount of water is dripped into the glue gun through the liquid inlet pipe, so that the glue is always kept at a proper concentration, and the glue is prevented from being excessively viscous; in order to prevent different batches of glue concentration in the feeding device from being different, the adjusting switch is arranged on the liquid inlet pipe to adjust the water inlet amount of the liquid inlet pipe, so that the phenomenon that water is added too much or too little due to different initial concentrations of the glue is avoided, the glue in the glue gun is further ensured to be always kept at proper concentration, the glue gun is prevented from being blocked due to solidification of the glue, and the normal work of the glue gun is further ensured.
Furthermore, the synchronous transmission assembly comprises a bidirectional screw rod arranged in the cavity, a first bevel gear fixedly connected to the bidirectional screw rod, a second bevel gear meshed with the first bevel gear, a third bevel gear meshed with the first bevel gear, a second screw fixedly connected to the second bevel gear, a first screw fixedly connected to the third bevel gear and a second driving piece used for driving the bidirectional screw rod; through mutual meshing among the first bevel gear, the second bevel gear and the third bevel gear, the effect that one motor drives the whole assembly to operate is achieved, energy is saved, efficiency is high, the transmission structure is stable, the moving synchronism of the movable clamping arms connected with the synchronous transmission assembly is guaranteed, and the situation that the chip film is failed to be stretched due to the fact that the moving positions of the movable clamping arms are inconsistent is avoided; and the adoption is gear drive and screw drive, and the transmission is more stable, and the transmission precision is higher, has further ensured that the chip membrane is tensile enough even.
Furthermore, the bidirectional screw rod comprises a first section body provided with an external thread and a second section body provided with an external thread; the external thread on the second section body has the opposite rotation direction to the external thread on the first section body; a first sleeve is arranged on the first section body, and a second sleeve is arranged on the second section body; because the screw thread on the first section body and the second section body revolves to opposite direction, when two-way lead screw rotated, the first sleeve of threaded connection above and the telescopic removal opposite direction of second for a lead screw can drive two sleeves and do reverse motion, simple structure, and the fault rate is low, and the transmission is stable.
Further, the rotation directions of the second screw and the first screw are opposite; the thread directions of the second screw rod and the first screw rod are the same; a third sleeve is arranged on the second screw rod, and a fourth sleeve is arranged on the first screw rod; because the rotation direction of the second screw rod is opposite to that of the first screw rod, threads with the same rotation direction are arranged on the second screw rod and the first screw rod, and then the purpose that the moving direction of a sleeve on the second screw rod is opposite to that of a sleeve on the first screw rod is achieved, so that the movable clamping arms connected with the sleeves are driven to have opposite moving directions, the purpose of stretching a chip film is achieved, the structure is simple, the control is easy, the thread transmission is realized, the structure is stable, and the failure rate is low.
Furthermore, the movable clamping arm comprises an upright post, an upper clamping arm arranged on the upright post and a lower clamping arm matched with the upper clamping arm; the upper clamping arm and the lower clamping arm are respectively provided with a first elastic piece, and the first elastic pieces on the upper clamping arm and the first elastic pieces on the lower clamping arm are arranged in a staggered manner; the chip films are uniformly stretched towards the periphery by arranging the plurality of movable clamping arms on the outer side of the placing platform, so that the distance between the chips is uniformly increased, and the use is convenient; by arranging the upright post with proper height, the movable clamping arm can clamp the chip film more easily and is not easy to stretch and skew; the chip film is better fixed and is not easy to fall off by the matching of the upper clamping arm and the lower clamping arm; if not set up the elastic component, frictional force between the upper and lower arm lock is not enough, makes the chip membrane drop easily, causes tensile inhomogeneous or tensile insufficient phenomenon, through setting up the elastic component for roughness between the upper and lower arm lock increases, and upper and lower arm lock is when pressing from both sides tight chip membrane, and the elastic component takes place to deform, better with chip membrane contact, has increased frictional force, when making tensile chip membrane, the chip membrane is difficult to drop or slide, and then guarantees that the chip membrane is fully stretched.
In conclusion, the dispensing head is sealed by the telescopic assembly when not in work by arranging the telescopic assembly; when the dispensing head works, the telescopic assembly does not influence the normal glue discharging of the dispensing head.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a liquid inlet assembly according to the present invention;
FIG. 3 is a cross-sectional view of the glue gun of the present invention;
FIG. 4 is a cross-sectional view of the dispensing head of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is an enlarged view at B in FIG. 4;
FIG. 7 is a cross-sectional view of the dispensing head of the present invention during dispensing;
FIG. 8 is a schematic structural view of a hot water pipe according to the present invention;
FIG. 9 is a top view of a stretching assembly in the present invention;
FIG. 10 is a cross-sectional view of a movable clamp arm of the present invention;
FIG. 11 is a top view of the synchronous drive assembly of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1-11, in an LED processing system with a glue not easy to leak, the processing steps of the LED lamp are complicated, including a die expanding step, a cleaning step, a temperature returning step, a glue dispensing step, a die bonding step, a baking step, a wire bonding step, an assembling step, and a detecting step; the key point of the invention is a crystal expansion process and a glue dispensing process, which comprise a base 1, a crystal expansion mechanism arranged on the base 1 and a glue dispensing mechanism arranged on the base 1; the chip film is stretched by the chip stretching mechanism, so that the distance between the chips on the chip film is increased, and the chip fixing mechanism is convenient to use; the glue dispensing mechanism is used for dispensing glue on the support, so that the chip can be fixed on the support by the glue to complete installation.
Specifically, the crystal expansion mechanism comprises a base 1, a frame 11, a placing platform 12, a stretching assembly and a cutting piece 13; the base 1 has mounted thereon a controller 16, which is a commercially available s7-200plc controller, which is prior art and therefore not described in detail herein. The frame 11 is mounted on the base 1, and a first driving member 14 is mounted at the top end of the frame 11, and the driving member is a commercially available air cylinder, which is prior art and therefore is not described herein again; the cylinder is fixedly connected with a cutting piece 13 and can drive the cutting piece 13 to move up and down; the placing platform 12 is a circular platform arranged on the base 1 and used for placing a chip film; the outer side of the placing platform 12 is provided with a stretching assembly which is composed of four movable clamping arms 2 uniformly arranged along the periphery of the placing platform 12. Further, the movable clamping arm 2 comprises an upright post 21, an upper clamping arm 22 and a lower clamping arm 23; the upper clamping arms 22 are welded on the upright posts, and the lower surfaces of the upper clamping arms 22 are higher than the placing platform 12; the upright post 21 is a hollow cylinder and is used for supporting the clamping arm; a piston cavity 24 is arranged in the upright post 21, the piston cavity 24 has good air tightness, and a piston air hole 244 which is a through hole and is communicated with the piston cavity and the outer side of the upright post is formed in the lower part of the piston cavity 24; a piston air pipe 245 is connected outside the piston air hole 244, the piston air pipe is a hose, one end of the hose is connected with the piston air hole, and the other end of the hose is connected with an air pump; the air pump is a commercially available air pump, hereinafter referred to as an air pump I, which is a prior art and therefore will not be described herein; a piston plate 241 which can move up and down is also arranged in the piston cavity 24, and the piston plate extends upwards to form a piston rod 242 which penetrates out of the piston cavity and cannot deflect under the limit of the piston cavity; the other end of the piston rod is fixedly connected with a connecting block 243, the connecting block can move up and down along a sliding rail 211 arranged on the side wall of the upright column under the driving of the piston plate, and the sliding rail can play a limiting role, so that the connecting block can only move along the sliding rail and cannot deflect; the other end of connecting block 243 and lower arm lock 23 welding guarantee the fastness of arm lock, and when the connecting block reciprocated, also drove lower arm lock and reciprocated for lower arm lock can cooperate with last arm lock, plays the effect of pressing from both sides tight chip membrane and pine chip membrane. In order to ensure the clamping force of the clamping arms on the chip film, a first elastic piece 25 is arranged on the clamping arms, and the first elastic piece 25 is of a semi-cylindrical shape and is made of rubber; this first elastic component 25 is installed respectively on last arm lock and lower arm lock to elastic rubber on the last arm lock sets up with the elastic rubber on the arm lock down crisscross interval in proper order, when making upper and lower arm lock fold, the chip membrane can better centre gripping of elastic rubber on the upper and lower arm lock, thereby when making tensile chip membrane, the difficult slippage of chip membrane.
In order to enable the plurality of movable clamping arms 2 to synchronously stretch the chip film, a cavity 3 is arranged below the movable clamping arms 2, and the cavity 3 is arranged in a cross shape; a synchronous transmission assembly is arranged in the cross-shaped cavity 3 and comprises a bidirectional screw rod 31, a first bevel gear 32, a second bevel gear 33, a third bevel gear 34, a second screw rod 35, a first screw rod 36, a threaded sleeve 37 and a second driving piece 38; the bidirectional screw rod 31, the first screw rod 36 and the second screw rod 35 are respectively in bearing connection with the cavity 3; the second driving member 38 is a commercially available motor, hereinafter referred to as a "first motor", which is prior art and therefore not described herein; the output end of the motor is fixedly connected with the bidirectional screw rod 31, so that the bidirectional screw rod 31 can be driven by a motor shaft to rotate; the middle part of the bidirectional screw rod 31 is fixedly connected with a first bevel gear 32, and the first bevel gear 32 can be driven by the bidirectional screw rod 31 to rotate; a second bevel gear 33 is arranged above the first bevel gear 32, the second bevel gear 33 is meshed with the first bevel gear 32, and the second bevel gear 33 is driven by the first bevel gear 32 to rotate; a third bevel gear 34 is arranged below the first bevel gear 32, the third bevel gear 34 is meshed with the first bevel gear 32, and the third bevel gear 34 is driven by the first bevel gear 32 to rotate, so that the aim of converting transverse rotating force into longitudinal rotating force is fulfilled; the second bevel gear 33 is fixedly arranged on the second screw rod 35 and drives the second screw rod 35 to rotate; the third bevel gear 34 is fixedly arranged on the first screw rod 36 and drives the first screw rod 36 to rotate; in summary, under the mutual cooperation of the first bevel gear 32, the second bevel gear 33 and the third bevel gear 34, the bidirectional screw rod 31, the second screw rod 35 and the first screw rod 36 are driven to rotate by one motor, so that the structure is stable, and the energy utilization rate is high; a first section body 373 is arranged on the left side of the bidirectional screw rod 31, a second section body 374 is arranged on the right side of the bidirectional screw rod, threads are arranged on the first section body and the second section body, the rotating directions of the threads on the first section body 373 and the threads on the second section body 374 are opposite, a first sleeve 371 is in threaded connection with the first section body 373, a second sleeve 372 is in threaded connection with the second section body 374, when the bidirectional screw rod rotates, the moving directions of the first sleeve and the second sleeve are opposite, namely when the first sleeve 371 moves rightwards, the second sleeve 372 moves leftwards; when the first sleeve 371 moves to the left, the second sleeve 372 moves to the right; the second screw 35 is in threaded connection with a third sleeve 353, and the first screw 36 is in threaded connection with a fourth sleeve 364; the thread direction on the second screw 35 is the same as that on the first screw 36, and since the rotation direction of the second screw 35 is opposite to that of the first screw 36, the movement direction of the third sleeve 353 on the second screw 35 is opposite to that of the fourth sleeve 364 on the first screw, i.e. when the third sleeve 353 on the second screw 35 moves downwards, the fourth sleeve 364 on the first screw 36 moves upwards; when the third sleeve 353 on the second screw 35 moves upward, the fourth sleeve 364 on the first screw 36 moves downward; the column 21 is welded to the sleeve, so that when the sleeve moves, the movable clamping arm 2 can be driven to move simultaneously. In order to facilitate the movement of the movable clamping arm 2, 4 first sliding grooves 15 matched with the movable clamping arm 2 are formed in the base 1, and the first sliding grooves 15 are communicated with the cavity 3.
Specifically, the operation steps of the wafer expanding mechanism are as follows: after the equipment is started, a chip film is placed on a placing platform of a crystal expansion mechanism, a controller controls a first motor to be started, the first motor rotates forwards, an output end of the first motor drives a bidirectional screw rod 31, a second screw rod 35 and a first screw rod 36 to rotate, at the moment, a threaded sleeve 37 in threaded connection with the bidirectional screw rod 31, the second screw rod 35 and the first screw rod 36 is close to each other along the screw rod and the screw rod, and a movable clamping arm fixedly connected with the threaded sleeve 37 moves towards the direction close to the placing platform along a first sliding groove under the driving of the threaded sleeve 37; after the preset position is reached, the controller controls the first motor to stop rotating, controls the first air pump to start, and rotates the first air pump forwards to inflate the piston cavity 24 through the piston air hole 244 by utilizing the piston air pipe 245, so that the air pressure in the piston cavity is increased, further the piston plate 241 is pushed to ascend, the piston plate ascends to drive the piston rod 242 to ascend, the piston rod ascends to drive the connecting block 243 to ascend along the slide rail 211 to drive the lower clamping arm 23 to ascend, and after the lower clamping arm reaches the preset position, the chip film can be clamped; at the moment, the controller controls the first air pump to stop, then controls the first motor to start and rotate reversely, at the moment, the threaded sleeve 37 is driven by the bidirectional screw rod 31, the second screw rod 35 and the first screw rod 36 to be away from each other along the screw rod and the screw rod, the movable clamping arm 2 is driven by the threaded sleeve 37 to move along the first chute in the direction away from the placing platform, at the moment, the clamping arm clamps the chip film, the movable clamping arm moves in the direction away from the placing platform, and the chip film can be uniformly stretched and opened by the movable clamping arm, so that the distance between chips on the chip film is uniformly increased; after the movable clamping arm moves to the preset position, the controller controls the first motor to stop, the first driving piece 14 is controlled to rotate forwards, namely the cylinder rotates forwards, the cylinder drives the cutting piece 13 to descend, after the preset position is reached, the redundant part of the chip film can be cut off, the controller controls the cylinder to rotate backwards at the moment, the cylinder drives the cutting piece to ascend, the first air pump is controlled to start and rotate backwards again, the air pump pumps out air in the piston cavity through the piston air pipe, the air pressure in the piston cavity is reduced, the piston plate descends, the clamping arm descends to loosen the chip film under the driving, and crystal expansion of the chip film is completed.
Specifically, the glue dispensing mechanism comprises a glue gun frame 7, a glue gun 4, a frame 61, a moving device 62, a third driving piece 63 and a workbench 64; specifically, a frame 61 is arranged on the base 1, and a moving device 62 is arranged at the top of the frame and can move back and forth, left and right on the frame under the driving of a motor; in order to facilitate the movement of the mobile device, the top of the frame is provided with a slide rail matched with the mobile device; a third driving member 63 is fixedly connected to the lower portion of the moving device 62, and the third driving member is a commercially available air cylinder, which is a prior art and therefore is not described herein again; the lower end of the cylinder is fixedly connected with a glue gun frame 7, and the glue gun frame can ascend and descend under the driving of the cylinder; a plurality of glue guns 4 are arranged on the glue gun frame 7, so that the glue dispenser can dispense glue for a plurality of supports at the same time, and the working efficiency is greatly improved; the moving of the glue gun is realized through the matching of the moving device and the air cylinder, so that the glue can be quickly dispensed to the bracket, the operation of personnel is not needed, and the use is simple; a feeding device is externally connected and used for providing glue for the glue gun, a material conveying pipe 65 is arranged on the glue gun frame 7, the glue gun 4 is connected with the material conveying pipe 65 through a material inlet pipe, and the material conveying pipe 65 is a hose and can move along with the glue gun frame, so that the work of a glue dispenser is facilitated; the other end of the material conveying pipe 65 is connected with a material storage barrel 67 for storing glue; a feeding pump 66 is arranged on the material conveying pipe 65, so that the glue in the material storage barrel can be conveyed into the glue gun through the material conveying pipe, and certain pressure is applied, so that the glue can flow out more easily when the glue gun is used for dispensing; the feeding pump is a water pump purchased in the market, which is the prior art, and therefore, the detailed description thereof is omitted.
In order to prevent the glue from being solidified in the glue gun 4 to block the glue gun, a stirring cavity 41 is arranged in the glue gun, a stirring shaft 42 is arranged in the stirring cavity, and the glue in the glue gun is stirred by the stirring shaft, so that the glue is always in a flowing state and is not easy to solidify; the lower end of the stirring shaft 42 is a free end, and is not connected with the bottom of the stirring cavity by a bearing so as to prevent the free end from being fixed by glue and prevent the glue from being solidified on the bearing to generate resistance and influence the stirring effect of the stirring shaft; the upper end of the stirring shaft is fixedly connected with the output end of a motor; the motor is arranged at the top of the glue gun, and is a motor purchased in the market, which is the prior art, so the details are not repeated; in order to better stir the glue, the feeding hole 43 is arranged at the top of the stirring cavity, so that the glue passes through the stirring shaft from top to bottom, and the glue is fully stirred; the stirring shaft 42 comprises a first stirring section 421, a second stirring section 422 and a third stirring section 423; the stirring shaft is a smooth metal rod, the first spiral stirring blade 4211 is welded on the first stirring section 421, the spiral stirring blade is a metal sheet which is spirally arranged, so that the glue can be stirred and can be better conveyed downwards, the spiral arrangement enables the stirring range to be wider, the stirring to be more sufficient, the glue can continuously flow and is not easy to solidify; the second stirring section 422 is adjacent to the first stirring section 421, the second stirring section is provided with a spiral blade 4221, and the arrangement of the spiral blade enables the glue in the stirring cavity to be conveyed to the lower part in an accelerated manner, so that the glue flow rate is increased, the glue is more easily extruded out of the stirring cavity during glue dispensing, the waiting time is reduced, and the working efficiency of the glue gun is improved; and a second spiral stirring blade 4231 is welded on a third stirring section adjacent to the second stirring section, the shape of the second spiral stirring blade is the same as that of the first spiral stirring blade, but the length of the second spiral stirring blade is smaller than that of the first spiral stirring blade, so that the effect of stirring the glue at the bottom of the stirring cavity is achieved, and the glue is prevented from being deposited at the bottom of the stirring cavity and becoming sticky.
Specifically, the lower end of the glue gun 4 is detachably connected with a dispensing head 5, and in the embodiment, screw connection is adopted; the dispensing heads are detachably connected, so that the dispensing heads can be replaced or maintained when damaged, the maintenance cost is lower, the replacement is convenient, and the influence on the production efficiency is less; in order to ensure the sealing performance of the detachable structure, a first groove 51 is formed in the top of the dispensing head, a second groove 45 corresponding to the first groove is formed in the lower surface of the glue gun, a sealing ring 8 is arranged in a sealing cavity formed by the mutual matching of the first groove and the second groove, the sealing performance between the dispensing head and the glue gun is ensured, the normal operation of the dispensing mechanism is further ensured, and the sealing ring 8 is made of rubber; a cavity for accommodating and allowing glue to pass is also formed in the dispensing head 5, a plurality of through holes 44 are formed in the lower surface of the glue gun, and the stirring cavity 41 is connected with the cavity in the dispensing head 5 through the through holes 44; the lower end of the dispensing head is provided with a discharge hole 52 which is the same as the inner cavity of the dispensing head; for better dispensing, a telescopic assembly is arranged in the dispensing head, the telescopic assembly comprises a telescopic piece 53, a sleeve 54 and a reset piece 55, and the reset piece is a spring; the upper surface of the sleeve is welded with the lower surface of the glue gun 4, the telescopic piece 53 is arranged in the sleeve 54 and can slide relative to the sleeve, the lower end of the telescopic piece 53 is designed to be a spherical surface, and the spherical surface penetrates out of the discharge hole 52 and is tightly matched with the discharge hole to play a role in sealing and prevent glue inside the dispensing head from leaking out; the reset piece 55 is arranged in the sleeve 54, the upper end of the reset piece is welded with the lower surface of the glue gun 4, and the lower end of the reset piece is welded with the upper surface of the telescopic piece, so that the reset effect is prevented from being influenced by the movement of the reset piece; in order to prevent the telescopic part from falling off the sleeve, a convex edge 531 is arranged on the upper surface of the telescopic part, and the convex edge 531 is formed by extending the upper surface of the telescopic part outwards and is integrally formed, so that the telescopic part is convenient to manufacture; a limiting part 541 matched with the convex edge 531 is arranged on the lower surface of the sleeve, and the limiting part is formed by extending the lower surface of the sleeve inwards and is integrally formed, so that the manufacturing is convenient; when gluing rifle 4 and pushing down, the shrink 53 is inwards contract for glue outflow in addition is opened to the discharge gate, and when gluing the rifle and rising, the piece that resets pushes down the shrink, seals the discharge gate again.
In order to prevent the glue from permeating into the telescopic assembly to affect the operation of the telescopic assembly, a scraping member 56 is mounted on the limiting portion 541, and the scraping member 56 is made of elastic plastic material and is annularly arranged; the scraping piece comprises a concave surface 561, a convex surface 562, a fixed surface 563 and a movable surface 564; the fixed surface of the scraping piece 56 is fixedly connected with at least part of the limiting part 541, and the movable surface is tightly matched with the telescopic piece 53; the scraping piece 56 is bent under the extrusion of the limiting part 541 and the outer surface of the telescopic piece 53, the convex surface of the scraping piece faces the telescopic piece 53, the concave surface faces the glue outside, the curvature of the convex surface is larger than that of the concave surface, the curvature of the concave surface is lower and smoother, the glue can be conveniently scraped away along the concave surface, and the curvature of the convex surface is higher, so that the scraping piece is difficult to deform when the telescopic piece 53 moves; when the telescopic member 53 is lifted, the scraping member can move along the outer surface of the telescopic member 53 and scrape the glue on the outer surface of the telescopic member 53, so that the glue is scraped along the concave surface of the scraping member 56; a second sealing element 55 is further mounted on the limiting portion 541, and the second sealing element 55 is made of rubber and is annularly arranged; the scraping piece 56 is arranged on the side far away from the convex edge 531, and the second sealing piece 55 is arranged on the side close to the convex edge 531; by installing the second sealing member 55, a part of glue remained on the outer surface of the telescopic member 53 after being cleaned by the scraping member 56 is blocked by the second sealing member 55, so that the glue is further prevented from entering the inside of the telescopic assembly, and the normal operation of the telescopic assembly is ensured; preferably, in order to enhance the sealing effect of the second sealing member 55, the second sealing member 55 is provided with a first sealing portion 551, a second sealing portion 552 and a recess 553, and the first sealing portion and the second sealing portion are arranged so that the sealing portions are in multi-point contact with the outer surface of the telescopic member to form a multi-protection effect, further prevent glue from permeating, and ensure the normal operation of the telescopic assembly; the concave part is arranged between the two convex parts, so that the convex parts have a deformation space when being extruded and deformed, and the sealing effect is prevented from being influenced by mutual extrusion of the convex parts when being deformed; the second sealing part is contacted with the outer surface of the telescopic part, so that when the telescopic part rises, the second sealing part can deform upwards under the action of the telescopic part, when the telescopic part falls, the second sealing part can deform downwards under the action of the telescopic part, and at the moment, due to the arrangement of the first sealing part and the second sealing part, when the telescopic part rises, the second sealing part plays a role in scraping glue to ensure sealing; when the telescopic piece descends, the first sealing part plays a role in scraping glue to ensure sealing; the concave part is arranged between the two convex parts, so that the convex parts have a deformation space when being extruded and deformed, and the sealing effect is prevented from being influenced by mutual extrusion of the convex parts when being deformed; an annular first sealing element 57 is arranged on the convex edge 531, and the first sealing element 57 is made of rubber materials and is tightly matched with the inner wall of the sleeve 54; further preventing glue from penetrating into the interior of the telescopic assembly.
In order to prevent the glue from being solidified easily, a heating assembly is arranged in the outer wall of the glue gun 4; specifically, a cavity 46 is formed in the outer wall of the glue gun 4, a hot water pipe 47 is installed in the cavity 46, and the hot water pipe 47 is spirally wound in the cavity 46, so that the heating area of the hot water pipe is wider; because the upper end is the feed inlet, glue just got into the stirring chamber, the temperature is still higher, and the glue temperature of lower extreme is lower, so set up hot water inlet 471 at the lower extreme, hot water outlet 472 sets up in the upper end for glue is by even heating, and the hot-water line is spiral winding setting, and the body is adjacent, so the heat in the hot-water line is more difficult to dissipate, has played certain heat preservation effect, and has filled up insulating layer 48 in cavity 46, further prevented heat dissipation, energy loss is reduced, energy saving and emission reduction.
Specifically, due to natural evaporation and heating evaporation of water in the glue, the glue becomes viscous, so that the glue is easier to solidify; in order to further prevent the glue from solidifying, a liquid inlet assembly is installed, which comprises a liquid inlet hole 49, a liquid inlet pipe 491, a one-way liquid inlet valve 492, an adjusting switch 493, a liquid storage barrel 494, a one-way air inlet valve 495 and a balance pipe 496; a liquid inlet hole 49 is formed in the outer wall of the glue gun 4, the inside and the outside of the stirring cavity 41 are communicated through the liquid inlet hole 49, and a one-way liquid inlet valve 492 is installed in the liquid inlet hole to prevent glue in the stirring cavity from flowing out; the one-way liquid inlet valve is connected with a liquid inlet pipe 491, and the other end of the liquid inlet pipe is connected with a liquid storage barrel 494, so that water in the liquid storage barrel can enter the stirring cavity through the liquid inlet pipe and the one-way liquid inlet valve, and the glue in the stirring cavity is kept at proper density and is not thickened; since the glue at the upper end just enters from the feed inlet, the density is proper, water does not need to be added, and the glue at the lower part of the stirring cavity 41 is easy to become viscous because the glue leaves the storage barrel 67 for a long time and is deposited at the bottom, the liquid inlet hole 49 is arranged above the propeller blade 4221, so that the water entering the stirring cavity 41 is scattered by the propeller blade and is stirred into the glue, the proper density of the glue is further ensured, and the glue is prevented from becoming viscous to block a glue gun; in order to prevent different glue concentrations in different batches in the feeding device, an adjusting switch 493 is arranged on the liquid inlet pipe and used for adjusting the water inlet quantity of the liquid inlet pipe, so that excessive or insufficient water addition caused by different glue initial concentrations is avoided; in order to observe the amount of water inflow, a balance pipe 496 is further arranged on the liquid inlet pipe, the balance pipe is made of transparent plastic materials, the diameter of the balance pipe is larger than that of the liquid inlet pipe, only half of the balance pipe is filled with water, and when the water in the liquid inlet pipe flows into the balance pipe, the size of the water inflow can be observed; and the balance pipe utilizes the principle of air pressure balance, and a one-way air inlet valve 495 is arranged below the liquid storage barrel, so that water in the liquid storage barrel is sent into the balance pipe through atmospheric pressure, and then enters the stirring cavity through a one-way liquid inlet valve.
Specifically, the work flow of the dispenser is as follows: after the bracket is placed on the workbench, the power supply is started, the controller controls the moving device to drive the glue gun frame to move above the workbench, the glue gun is aligned to the part of the bracket where the chip is required to be installed, the controller controls the water pump to start, and glue enters the glue gun through the feed pipe and the feed inlet; the controller controls the air cylinder to start again, the air cylinder drives the glue gun to descend, the glue dispensing head on the glue gun is pressed on the support, the telescopic piece on the glue dispensing head shrinks inwards due to pressing, the reset piece is compressed, the discharge hole is opened, and glue in the glue gun flows into the support; at the moment, the controller controls the cylinder to ascend again to drive the dispensing head to ascend, and after the pressing force is lost, the reset piece is reset under the action of elastic force, the telescopic piece is pressed into the discharging hole again to block the discharging hole, and dispensing work on the partial bracket is finished; and the controller controls the mobile device to move to the positions above other supports needing glue dispensing, and the actions are repeated to complete the glue dispensing work of other supports.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (1)
1. An LED processing system with glue not easy to leak comprises a base (1), a crystal expansion mechanism arranged on the base (1) and a glue dispensing mechanism arranged on the base (1); the glue dispensing mechanism comprises a glue gun frame (7) capable of moving up and down, a glue gun (4) arranged on the glue gun frame (7) and a stirring cavity (41) arranged in the glue gun (4); the crystal expansion mechanism comprises a placing platform (12) for placing chip films, a stretching assembly for expanding crystals and a cutting piece (13) for cutting redundant chip films, wherein the stretching assembly comprises a plurality of movable clamping arms (2) arranged on the outer side of the placing platform (12); the method is characterized in that: a cavity (3) is arranged on the base (1), and a synchronous transmission component matched with the movable clamping arm (2) is arranged in the cavity (3); the glue gun (4) is detachably connected with a glue dispensing head (5), and a telescopic assembly is arranged in the glue dispensing head (5); the glue gun (4) is externally connected with a liquid inlet component;
a stirring shaft (42) is arranged in the stirring cavity, the lower end of the stirring shaft (42) is a free end, and the stirring shaft (42) comprises a first stirring section (421), a second stirring section (422) and a third stirring section (423); the stirring shaft is a smooth metal rod, a first spiral stirring blade (4211) is welded on the first stirring section (421), and the spiral stirring blade is a metal sheet arranged in a spiral manner; the second stirring section (422) is adjacent to the first stirring section (421), and a spiral blade (4221) is arranged on the second stirring section; a second spiral stirring blade (4231) is welded on a third stirring section adjacent to the second stirring section, the shape of the second spiral stirring blade is the same as that of the first spiral stirring blade, but the length of the second spiral stirring blade is smaller than that of the first spiral stirring blade;
the lower surface of the glue gun is provided with a plurality of through holes (44), and the stirring cavity (41) is connected with a cavity inside the glue dispensing head (5) through the through holes (44); the lower end of the dispensing head is provided with a discharge hole (52) which is the same as the inner cavity of the dispensing head;
a heating component is arranged in the outer wall of the glue gun (4), a cavity (46) is formed in the outer wall of the glue gun (4), a hot water pipe (47) is arranged in the cavity (46), the hot water pipe (47) is spirally wound in the cavity (46), a hot water inlet (471) is arranged at the lower end, and a hot water outlet (472) is arranged at the upper end; the cavity (46) is filled with a heat insulation layer (48);
the telescopic assembly comprises a telescopic piece (53) capable of moving up and down, a sleeve (54) matched with the telescopic piece (53) and a resetting piece (55) arranged in the sleeve (54); the lower surface of the telescopic piece (53) is a spherical surface;
a convex edge (531) is formed by extending the upper surface of the telescopic piece (53) outwards, and a limiting part (541) matched with the convex edge (531) is formed by extending the lower surface of the sleeve (54) inwards; a first sealing element (57) matched with the inner wall of the sleeve (54) is arranged on the convex edge (531), and a second sealing element (55) and a scraping element (56) matched with the outer surface of the telescopic element (53) are arranged on the limiting part (541);
the scraping piece (56) comprises a concave surface (561) far away from the outer surface of the telescopic piece (53), a convex surface (562) close to the outer surface of the telescopic piece (53), a fixed surface (563) fixedly connected with the limiting part (541) and a movable surface (564) matched with the outer surface of the telescopic piece (53); the curvature of the convex surface (562) is greater than the curvature of the concave surface (561);
the liquid inlet assembly comprises a liquid inlet hole (49) arranged on the glue gun (4), a one-way liquid inlet valve (492) arranged in the liquid inlet hole (49), a liquid inlet pipe (491) connected with the one-way liquid inlet valve (492), and an adjusting switch (493) arranged on the liquid inlet pipe (491);
the liquid inlet hole (49) is arranged above the propeller blade (4221), a balance pipe (496) is also arranged on the liquid inlet pipe, the balance pipe is made of transparent plastic materials, and the diameter of the balance pipe is larger than that of the liquid inlet pipe;
the synchronous transmission assembly comprises a bidirectional screw rod (31) arranged in the cavity (3), a first bevel gear (32) fixedly connected to the bidirectional screw rod (31), a second bevel gear (33) meshed with the first bevel gear (32), a third bevel gear (34) meshed with the first bevel gear (32), a second screw rod (35) fixedly connected to the second bevel gear (33), a first screw rod (36) fixedly connected to the third bevel gear (34) and a second driving piece (38) used for driving the bidirectional screw rod (31);
the bidirectional screw rod (31) comprises a first section body (373) provided with an external thread and a second section body (374) provided with an external thread; the external thread on the second section (374) is opposite to the external thread on the first section (373); a first sleeve (371) is arranged on the first section body (373), and a second sleeve (372) is arranged on the second section body (374);
the second screw (35) and the first screw (36) rotate in opposite directions; the thread directions of the second screw (35) and the first screw (36) are the same; a third sleeve (353) is arranged on the second screw rod (35), and a fourth sleeve (364) is arranged on the first screw rod (36);
the movable clamping arm (2) comprises an upright post (21), an upper clamping arm (22) arranged on the upright post (21) and a lower clamping arm (23) matched with the upper clamping arm (22); the upper clamping arm (22) and the lower clamping arm (23) are respectively provided with a first elastic piece (25), and the first elastic pieces (25) on the upper clamping arm (22) and the first elastic pieces (25) on the lower clamping arm (23) are arranged in a staggered manner; the lower surface of the upper clamping arm (22) is higher than the placing platform (12); the upright post (21) is a hollow cylinder and is used for supporting the clamping arm (22); a piston cavity (24) is arranged in the upright post (21), the piston cavity (24) has good air tightness, a piston air hole (244) is formed in the lower part of the piston cavity (24), and the piston air hole (244) is a through hole and is communicated with the piston cavity (24) and the outer side of the upright post (21); a piston air pipe (245) is connected outside the piston air hole (244), the piston air pipe (245) is a hose, one end of the hose is connected with the piston air hole (244), and the other end of the hose is connected with an air pump; a piston plate (241) capable of moving up and down is further installed in the piston cavity (24), the piston plate (241) extends upwards to form a piston rod (242), the piston rod (242) penetrates out of the piston cavity (24) and cannot deflect under the limit of the piston cavity (24); the other end of the piston rod (242) is fixedly connected with a connecting block (243), the connecting block (243) can move up and down along a sliding rail (211) arranged on the side wall of the upright post (21) under the driving of the piston plate (241), and the sliding rail (211) can play a limiting role, so that the connecting block (243) can only move along the sliding rail (211) and cannot deflect; the other end of the connecting block (243) is welded with the lower clamping arm (23).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010500030.4A CN111604221A (en) | 2018-12-27 | 2018-12-27 | LED processing system with glue not easy to leak |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202010500030.4A CN111604221A (en) | 2018-12-27 | 2018-12-27 | LED processing system with glue not easy to leak |
CN201811607956.2A CN109530162B (en) | 2018-12-27 | 2018-12-27 | LED processing system |
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CN201811607956.2A Division CN109530162B (en) | 2018-12-27 | 2018-12-27 | LED processing system |
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CN111604221A true CN111604221A (en) | 2020-09-01 |
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CN202010500030.4A Withdrawn CN111604221A (en) | 2018-12-27 | 2018-12-27 | LED processing system with glue not easy to leak |
CN201811607956.2A Active CN109530162B (en) | 2018-12-27 | 2018-12-27 | LED processing system |
Family Applications After (1)
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CN201811607956.2A Active CN109530162B (en) | 2018-12-27 | 2018-12-27 | LED processing system |
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CN112878637A (en) * | 2021-01-20 | 2021-06-01 | 万志芳 | Wall joint glue sealing device for building |
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CN114192349A (en) * | 2022-01-07 | 2022-03-18 | 深圳市星河谷科技有限公司 | Efficient glue dispensing device for LED lamp production |
CN114313502A (en) * | 2020-10-10 | 2022-04-12 | 张家港百盛新材料有限公司 | Packaging device for electronic components |
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GB491262A (en) * | 1937-04-21 | 1938-08-30 | Albert William Wenzel | Improvements in piston rings |
WO2004112096A2 (en) * | 2003-06-12 | 2004-12-23 | Symbol Technologies, Inc. | Method and system for high volume transfer of dies to substrates |
CN103586163B (en) * | 2013-11-20 | 2016-08-17 | 东北石油大学 | Small alternating current-direct current automatic glue spreader |
CN104008986A (en) * | 2014-05-12 | 2014-08-27 | 佛山市南海区联合广东新光源产业创新中心 | Wafer expander with high expansion uniformity |
CN205096051U (en) * | 2015-09-02 | 2016-03-23 | 深圳市赛派斯工业设备有限公司 | A shower nozzle for high -speed point gum machine |
JP6276816B2 (en) * | 2015-10-01 | 2018-02-07 | キヤノントッキ株式会社 | Substrate pulling apparatus, film forming apparatus, film manufacturing method, and organic electronic device manufacturing method |
CN106706440B (en) * | 2016-12-27 | 2023-09-01 | 吉林大学 | High-temperature biaxial synchronous stretching mechanical property testing instrument and testing method |
CN208261158U (en) * | 2018-04-24 | 2018-12-21 | 湖南帕普泵业有限公司 | A kind of new screw dispensing pump |
CN109013196B (en) * | 2018-09-01 | 2023-08-22 | 东莞联洲电子科技有限公司 | Glue dispensing device and glue dispensing method for display touch screen |
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2018
- 2018-12-27 CN CN202010500030.4A patent/CN111604221A/en not_active Withdrawn
- 2018-12-27 CN CN201811607956.2A patent/CN109530162B/en active Active
Cited By (5)
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CN114313502A (en) * | 2020-10-10 | 2022-04-12 | 张家港百盛新材料有限公司 | Packaging device for electronic components |
CN112878637A (en) * | 2021-01-20 | 2021-06-01 | 万志芳 | Wall joint glue sealing device for building |
CN113457913A (en) * | 2021-06-08 | 2021-10-01 | 湖州创塑新材科技有限公司 | A adjustable adhesive deposite device of non-woven fabrics for production and processing of medical gauze mask |
CN114192349A (en) * | 2022-01-07 | 2022-03-18 | 深圳市星河谷科技有限公司 | Efficient glue dispensing device for LED lamp production |
CN114192349B (en) * | 2022-01-07 | 2022-07-29 | 深圳市星河谷科技有限公司 | Efficient glue dispensing device for LED lamp production |
Also Published As
Publication number | Publication date |
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CN109530162A (en) | 2019-03-29 |
CN109530162B (en) | 2020-08-14 |
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