An electronic tag antenna heat sealing conveying positioning device

Abstract

The application discloses an electronic tag antenna heat sealing conveying positioning device, which comprises a bottom base, one support plate is arranged at each end of the bottom base, the top ends of the two support plates jointly support a conveying table, a driving wheel and a driven wheel are rotatably arranged at the two ends of the conveying table, the driving wheel is connected with a driving motor fixedly supported on the support plate through a belt wheel transmission pair, a vacuum adsorption synchronous belt is jointly wound on the driving wheel and the driven wheel, a plurality of through holes are arranged on the vacuum adsorption synchronous belt, the through holes are equidistantly distributed, a long slot is arranged at the central axis of the conveying table, a water cooling cavity and a vacuum cavity are arranged at the two sides of the long slot, the long slot, the water cooling cavity and the vacuum cavity are distributed along the length direction of the conveying table, the water cooling cavity is connected with a water circulation system through a pipeline, the vacuum cavity is connected with a vacuum system through a pipeline connected with an air path joint, and the vacuum adsorption synchronous belt is movably connected to the top opening of the vacuum cavity.

Description

Technical Field

[0001] This invention relates to the field of electronic tag packaging, and in particular to an electronic tag antenna heat sealing, conveying, and positioning device. Background Technology

[0002] In the encapsulation of electronic tags, a crucial step is to heat and pressurize the adhesive to cure it, thereby mounting the chip onto the strip antenna. During the heat sealing and curing process, it is essential to ensure that the heat sealing head accurately heats the adhesive applied in the previous step to guarantee the efficiency and effectiveness of the heat sealing and curing process. Traditionally, a moving suction plate conveyor mechanism is used to transport the antenna, driving it to move under the heat sealing head and then moving the heat sealing head after aligning it. However, in this moving suction plate method, the suction plate's movement trajectory is a reciprocating linear motion, with the return motion being unloaded. For the suction plate, this means that it takes two cycles to complete one effective action (moving the antenna forward), thus severely impacting production efficiency. Furthermore, the antenna surface is covered with a insulating paper. During traditional heat sealing processes, this insulating paper often sticks to the heat-sealing head, causing it to be lifted up when the heat-sealing head separates from the antenna, affecting subsequent operations. Most importantly, in order to ensure the accuracy of the heat sealing operation, the antenna needs to remain completely flat during transmission, but traditional reciprocating moving suction plates cannot guarantee this.

[0003] Therefore, a method or apparatus is needed to solve the above problems. Summary of the Invention

[0004] The present invention addresses the aforementioned shortcomings of the prior art by proposing an electronic tag antenna heat sealing, conveying, and positioning device that features a simple structure, ingenious design, and reasonable layout, enabling the antenna to move precisely into position and ensuring that the heat sealing head can accurately heat seal the coated adhesive.

[0005] The technical solution of this invention is: an electronic tag antenna heat-sealing conveying and positioning device, comprising a bottom base 1, characterized in that: a support plate 2 is respectively provided at both ends of the bottom base 1, the top ends of the two support plates 2 jointly support a conveying platform 3, and the two ends of the conveying platform 3 are respectively rotatably supported by a drive wheel 4 and a driven wheel 5, the drive wheel 4 is connected to a drive motor 6 fixedly supported on the support plate 2 through a belt pulley transmission pair, and a vacuum adsorption synchronous belt 7 is wound together on the drive wheel 4 and the driven wheel 5, the vacuum adsorption synchronous belt 7 having a plurality of equally spaced through holes 8. A clearance groove 9 is provided at the central axis of the conveyor platform 3. A water-cooling chamber 10 and a vacuum chamber 11 are respectively provided on both sides of the clearance groove 9. The clearance groove 9, the water-cooling chamber 10, and the vacuum chamber 11 are all distributed along the length of the conveyor platform 3. The water-cooling chamber 10 is connected to the water circulation system through a pipeline, and the vacuum chamber 11 is connected to the vacuum system through a pipeline connected to the gas connector 12. The vacuum adsorption synchronous belt 7 is movably connected to the top opening of the vacuum chamber 11. The conveying and positioning device also includes two clamping mechanisms respectively disposed at both ends of the conveying platform 3. Each clamping mechanism includes a swing cylinder 13 fixed relative to the bottom base 1. The working end of the swing cylinder 13 is connected to the pressure roller bracket 14, and the end of the pressure roller bracket 14 rotatably supports a pressure roller 15. The pressure roller 15 is matched with the vacuum adsorption synchronous belt 7. A camera 16 is also installed at the end of the conveyor table 3. The conveying and positioning device further includes a heat-sealing mechanism, which includes a lower heat-sealing motor 17. The working end of the lower heat-sealing motor 17 is connected to a lead screw. The lead screw is connected to a lead screw nut located at the center of the lower heat-sealing head support plate 18. Multiple lower heat-sealing heads 19 are evenly spaced and distributed along the length of the clearance groove 9 on the top surface of the lower heat-sealing head support plate 18. The heat-sealing mechanism also includes an upper heat-sealing motor 20. The working end of the upper heat-sealing motor 20 is connected to a lead screw. The lead screw is connected to a lead screw nut located at the center of the upper heat-sealing head support plate 21. Multiple upper heat-sealing heads 22 are provided on the bottom surface of the upper heat-sealing head support plate 21. Each upper heat-sealing head 22 corresponds to one of the lower heat-sealing heads 19. Antenna pressing mechanisms 23 are provided at both ends of the upper heat-sealing head support plate 21. The antenna clamping mechanism 23 includes a support block 24 fixedly connected to the upper heat-sealing head support plate 21. A slide rail support plate 25 is provided on the side wall of the support block 24. A slide rail is provided on the slide rail support plate 25, and a slider 26 is slidably connected on the slide rail. A spring 27 is provided between the top end of the slider 26 and the support block 24. At the same time, a pressure block 28 is fixedly connected to the bottom end of the slider 26. The pressure block 28 is in the shape of an inverted U.

[0006] The camera 16 is mounted on a camera bracket, which is mounted on an adjustable bracket 30. The base of the adjustable bracket 30 is movably connected to a guide rail 31. The guide rail 31 is distributed along the length of the conveyor table 3, and a set screw is threaded onto the base of the adjustable bracket 30.

[0007] Compared with the prior art, the present invention has the following advantages: This type of electronic tag antenna heat-sealing, conveying, and positioning device features a simple structure, ingenious design, and reasonable layout. Addressing the problems inherent in traditional electronic tag antenna conveying processes, it employs a unique structure. The main structure utilizes a conveyor platform with a centrally located clearance groove and internal vacuum and cooling chambers. A synchronous belt with through holes is mounted on this platform. During belt movement, the suction force generated within the vacuum chamber ensures the strip antenna adheres to the belt, allowing it to move smoothly and ensuring conveying accuracy. Furthermore, pressure roller mechanisms and antenna clamping mechanisms are located at both ends of the device. The pressure roller mechanism ensures the antenna remains taut, while the antenna clamping mechanism holds the antenna in place during heat sealing, preventing deformation along its length. All these mechanisms guarantee the accuracy of the antenna's transport position. Moreover, this conveying and positioning device is simple to manufacture and inexpensive, thus possessing numerous advantages and making it particularly suitable for widespread application in this field, with a very broad market prospect. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0009] Figure 2 This is a schematic diagram of the vacuum adsorption synchronous belt section in an embodiment of the present invention.

[0010] Figure 3 This is a schematic diagram of the conveyor platform portion in an embodiment of the present invention.

[0011] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0012] Figure 5 This is a partial schematic diagram of the drive motor and camera components in an embodiment of the present invention.

[0013] Figure 6 This is a partial enlarged view of the conveyor table in an embodiment of the present invention.

[0014] Figure 7 This is a schematic diagram of the antenna clamping mechanism in an embodiment of the present invention. Detailed Implementation

[0015] Specific embodiments of the present invention will now be described in conjunction with the accompanying drawings. Figures 1 to 7The diagram shows an electronic tag antenna heat-sealing, conveying, and positioning device, comprising a base platform 1 as its foundation. A support plate 2 is disposed at each end of the base platform 1. The tops of the two support plates 2 jointly support a conveying platform 3. A drive wheel 4 and a driven wheel 5 are rotatably supported at both ends of the conveying platform 3. The drive wheel 4 is connected to a drive motor 6 fixedly supported on the support plate 2 via a pulley transmission pair. A vacuum adsorption synchronous belt 7 is wound around both the drive wheel 4 and the driven wheel 5. The vacuum adsorption synchronous belt 7 has multiple equally spaced through holes 8. A clearance groove 9 is provided at the central axis of the conveyor platform 3. A water-cooling chamber 10 and a vacuum chamber 11 are respectively provided on both sides of the clearance groove 9. The clearance groove 9, the water-cooling chamber 10, and the vacuum chamber 11 are all distributed along the length of the conveyor platform 3. The water-cooling chamber 10 is connected to the water circulation system through a pipeline, and the vacuum chamber 11 is connected to the vacuum system through a pipeline connected to the gas connector 12. The vacuum adsorption synchronous belt 7 is movably connected to the top opening of the vacuum chamber 11. The conveying and positioning device also includes two clamping mechanisms respectively disposed at both ends of the conveying platform 3. Each clamping mechanism includes a swing cylinder 13 fixed relative to the bottom base 1. The working end of the swing cylinder 13 is connected to the pressure roller bracket 14, and the end of the pressure roller bracket 14 rotatably supports a pressure roller 15. The pressure roller 15 is matched with the vacuum adsorption synchronous belt 7. A camera 16 is also installed at the end of the conveyor table 3. The conveying and positioning device further includes a heat-sealing mechanism, which includes a lower heat-sealing motor 17. The working end of the lower heat-sealing motor 17 is connected to a lead screw. The lead screw is connected to a lead screw nut located at the center of the lower heat-sealing head support plate 18. Multiple lower heat-sealing heads 19 are evenly spaced and distributed along the length of the clearance groove 9 on the top surface of the lower heat-sealing head support plate 18. The heat-sealing mechanism also includes an upper heat-sealing motor 20. The working end of the upper heat-sealing motor 20 is connected to a lead screw. The lead screw is connected to a lead screw nut located at the center of the upper heat-sealing head support plate 21. Multiple upper heat-sealing heads 22 are provided on the bottom surface of the upper heat-sealing head support plate 21. Each upper heat-sealing head 22 corresponds to one of the lower heat-sealing heads 19. Antenna pressing mechanisms 23 are provided at both ends of the upper heat-sealing head support plate 21. The antenna clamping mechanism 23 includes a support block 24 fixedly connected to the upper heat-sealing head support plate 21. A slide rail support plate 25 is provided on the side wall of the support block 24. A slide rail is provided on the slide rail support plate 25, and a slider 26 is slidably connected on the slide rail. A spring 27 is provided between the top end of the slider 26 and the support block 24. At the same time, a pressure block 28 is fixedly connected to the bottom end of the slider 26. The pressure block 28 is in the shape of an inverted U.

[0016] The camera 16 is mounted on a camera bracket, which is mounted on an adjustable bracket 30. The base of the adjustable bracket 30 is movably connected to a guide rail 31. The guide rail 31 is distributed along the length of the conveyor table 3, and a set screw is threaded onto the base of the adjustable bracket 30.

[0017] The working process of the electronic tag antenna heat sealing, conveying, and positioning device in this embodiment of the invention is as follows: This device is equipped with a total of n upper heat sealing heads 22 and n lower heat sealing heads 19 corresponding one-to-one with the upper heat sealing heads 22. For antennas requiring chip bonding, adhesive has already been applied to specific locations on the antenna in the upstream process, and a chip has been placed at each adhesive application point. After the antenna moves onto this device, the vacuum system within the device activates, evacuating the vacuum chamber 11. Because the vacuum adsorption timing belts 7 move at the opening at the top of the vacuum chamber 11, and because the vacuum adsorption timing belts 7 have multiple equally spaced through holes 8, the negative pressure within the vacuum chamber 11 causes the two vacuum adsorption timing belts 7 to adhere to the antenna above it, and move the antenna along with it during movement. When the vacuum adsorption synchronous belt 7 moves, the drive motor 6 works, which drives the drive wheel 4 to rotate through the belt pulley transmission pair, thereby driving the two vacuum adsorption synchronous belts 7 to circulate. During the antenna movement, the clamping mechanisms located at both ends of the conveyor 3 are activated. The swing cylinder 13 drives the pressure roller bracket 14 to swing, so that the pressure roller 15 presses against the surface of the antenna, thereby ensuring that the antenna can always maintain a taut state during the movement. After the antenna moves into position, the camera 16 at the end of the conveyor 3 takes a picture of the antenna below it. The acquired image information is compared and judged by the control system. If a deviation is found between the position of the first chip and the standard reference object set on the conveyor 3, the control system will send a signal to the drive motor 6. The drive motor 6 rotates forward or backward a certain number of times to drive the antenna to move again, so that the first chip moves to the standard heat sealing position. After the position of the first chip is corrected, it means that all n chips have also moved to the standard heat sealing position. Then the control system controls the action of the heat sealing mechanism. The lower heat sealing cylinder 17 and the upper heat sealing cylinder 20 work, driving the lower heat sealing head support plate 18 (i.e., lower heat sealing head 19) and the upper heat sealing head support plate 21 (i.e., upper heat sealing head 22) to move towards each other. The n pairs of upper and lower heat sealing heads contact the adhesive application positions of the n chips respectively. The adhesive coated on the antenna is quickly cured under high temperature, realizing the bonding between the chip and the antenna. Then the lower heat sealing head 19 and the upper heat sealing head 22 move in opposite directions, thus realizing the adhesive curing operation of the n chips in one go. During the above process, all the lower heat-sealing heads 19 pass through the clearance slot 9 opened at the central axis of the conveyor platform 3 and contact the bottom surface of the antenna; while during the downward movement of the upper heat-sealing head support plate 21, the pressure blocks 28 in the antenna pressing mechanism 23 set at both ends will press against the surface of the antenna before the heat-sealing head contacts the adhesive, so as to ensure that the antenna will not deform when the heat-sealing head contacts the antenna. When the pressure block 28 presses on the upper surface of the antenna, the slider 26 slides on the slide rail, and the spring 27 is compressed. At this time, the pressure applied to the antenna by the pressure block 28 is the elastic force of the spring 27. When the upper heat-sealing head support plate 21 moves upward, the support block 24 moves upward with the upper heat-sealing head support plate 21, the slider 26 moves downward relative to the slide rail, and the spring 27 extends. Before the spring 27 returns to its fully extended state, the pressure block 28 always presses on the antenna. That is to say, the pressure block 28 will contact the antenna earlier than the heat-sealing head and will separate from the antenna later. During the above-mentioned work process, the water circulation system is always in operation, and cooling water is always circulating in the water-cooled cavity 10 to prevent the high temperature generated by the heat-sealing head during the heat-sealing process from affecting the belt and the bottom base. The position of the camera 16 in this conveying and positioning device can be adjusted according to actual needs. The relative position of the adjustable bracket 30 on the guide rail 31 can be adjusted. After the adjustment is appropriate, the adjustable bracket 30 is fixed on the guide rail 31 using the set screw. This adjustment method is suitable for adjustment along the length of the vacuum adsorption synchronous belt 7.

Claims

1. An electronic tag antenna heat sealing conveying positioning device, comprising a bottom base (1), characterized in that: The bottom base (1) has a support plate (2) at each end. The top of the two support plates (2) together support the conveyor platform (3). The two ends of the conveyor platform (3) are respectively rotatably supported by a drive wheel (4) and a driven wheel (5). The drive wheel (4) is connected to the drive motor (6) fixedly supported on the support plate (2) through a belt pulley transmission pair. The drive wheel (4) and the driven wheel (5) are together wound with a vacuum adsorption synchronous belt (7). The vacuum adsorption synchronous belt (7) has multiple through holes (8) distributed at equal intervals. A clearance groove (9) is provided at the central axis of the conveyor platform (3). A water-cooling cavity (10) and a vacuum cavity (11) are respectively provided on both sides of the clearance groove (9). The clearance groove (9), the water-cooling cavity (10) and the vacuum cavity (11) are all distributed along the length of the conveyor platform (3). The water-cooling cavity (10) is connected to the water circulation system through a pipeline, and the vacuum cavity (11) is connected to the vacuum system through a pipeline connected to the gas connector (12). The vacuum adsorption synchronous belt (7) is movably connected to the top opening of the vacuum cavity (11). The conveying and positioning device also includes two clamping mechanisms respectively set at both ends of the conveying platform (3). The clamping mechanism includes a swing cylinder (13) fixed relative to the bottom base (1). The working end of the swing cylinder (13) is connected to the pressure roller bracket (14). The end of the pressure roller bracket (14) is rotatably supported by a pressure roller (15). The pressure roller (15) is matched with the vacuum adsorption synchronous belt (7). A camera (16) is also provided at the end of the conveyor (3). The conveying and positioning device also includes a heat sealing mechanism, which includes a lower heat sealing motor (17). The working end of the lower heat sealing motor (17) is connected to a lead screw. The lead screw is connected to a nut seat located at the center of the lower heat sealing head support plate (18). Multiple lower heat sealing heads (19) are provided on the top surface of the lower heat sealing head support plate (18) along the length direction of the clearance groove (9) and at equal intervals. The heat sealing mechanism also includes an upper heat sealing motor (20). The working end of the upper heat sealing motor (20) is connected to a lead screw. The lead screw is connected to a nut seat located at the center of the upper heat sealing head support plate (21). Multiple upper heat sealing heads (22) are provided on the bottom surface of the upper heat sealing head support plate (21). The upper heat sealing heads (22) correspond one-to-one with the lower heat sealing heads (19). Antenna pressing mechanisms (23) are provided at both ends of the upper heat sealing head support plate (21). The antenna clamping mechanism (23) includes a support block (24) fixedly connected to the upper heat-sealing head support plate (21). A slide rail support plate (25) is provided on the side wall of the support block (24). A slide rail is provided on the slide rail support plate (25) with longitudinally distributed slide rails. A slider (26) is slidably connected on the slide rail. A spring (27) is provided between the top of the slider (26) and the support block (24). At the same time, a pressure block (28) is fixedly connected to the bottom of the slider (26). The pressure block (28) is in the shape of an inverted U.

2. The apparatus of claim 1, wherein: The camera (16) is mounted on a camera bracket, which is mounted on an adjustable bracket (30). The base of the adjustable bracket (30) is movably connected to a guide rail (31). The guide rail (31) is distributed along the length of the conveyor table (3), and a set screw is threaded onto the base of the adjustable bracket (30).

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