A sorting test device for electronic price tags

Abstract

The present invention relates to the technical field of electronic price tag testing, and in particular to a sorting test device for electronic price tags, comprising a test bench and a visual inspection mechanism arranged on the test bench, wherein a pair of conveying plates are fixedly connected to the test bench, and a conveying mechanism for conveying electronic price tags is arranged between the conveying plates, wherein a T-shaped plate is fixedly connected to a side wall of one of the conveying plates and is located above the conveying mechanism, an upper electric telescopic cylinder is fixedly connected to the top of the T-shaped plate, a storage groove is opened on the side wall of the T-shaped plate, and an L-shaped plate is fixedly connected to the output end of the upper electric telescopic cylinder and is located inside the storage groove. Through the arrangement of the above structure, the present invention can automatically push unqualified electronic price tags between the side plates, and can drive the pushed electronic price tags to move downward, thereby ensuring the normal pushing of subsequent electronic price tags, thereby realizing automatic sorting of sorted unqualified electronic price tags, without the need for sorting after the sorting is completed, and improving the sorting effect of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic price label testing, and in particular to a sorting and testing device for electronic price labels. Background Art

[0002] An electronic price tag is an electronic display device with information receiving and sending functions. It is mainly used in supermarkets, convenience stores, pharmacies, etc. to display price information. It is placed on the shelf and can replace the electronic display device of traditional paper price tags. Electronic price tags need to be sorted and tested after production. Through automated sorting tests, unqualified products can be quickly identified, reducing the time and cost of manual inspections, and ensuring that electronic price tags meet quality standards before leaving the factory, avoiding customer complaints and returns due to product defects.

[0003] In the prior art, there is an integrated circuit packaging test and sorting device based on artificial intelligence, with publication number CN116364570A. The device places the product on the upper end of a conveyor belt and between two baffles, and moves the product to the lower end of a visual monitor through the conveyor belt for inspection. When the product is unqualified, the cylinder is started so that the output end of the cylinder pushes the push plate to move to the right, and the push plate pushes the product on the conveyor belt into a collection box. By setting up a control box, a visual monitor and a cylinder, the product can be inspected and sorted through artificial intelligence, thereby improving the inspection and sorting efficiency of the product.

[0004] Although the above-mentioned device can improve the efficiency of test sorting, there are still some defects in the actual testing process. Since the sorting device sorts by directly pushing out unqualified products, after the sorting is completed, workers are required to organize the electronic price tags after the test in the material box and repair the products, which is not only time-consuming and labor-intensive, but also greatly reduces the production efficiency of the device.

[0005] Therefore, a sorting and testing device for electronic price tags is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a sorting and testing device for electronic price tags.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a sorting test device for electronic price tags, including a test bench and a visual inspection mechanism arranged on the test bench, a pair of conveying plates are fixedly connected to the test bench, a conveying mechanism for conveying electronic price tags is arranged between the conveying plates, a T-shaped plate is fixedly connected to the side wall of one of the conveying plates and located above the conveying mechanism, an upper electric telescopic cylinder is fixedly connected to the top of the T-shaped plate, a storage groove is opened on the side wall of the T-shaped plate, and an L-shaped plate is fixedly connected to the output end of the upper electric telescopic cylinder and located inside the storage groove; A sorting platform is fixedly connected to the front side of the test bench, a lower electric telescopic cylinder is fixedly connected to the top of the sorting platform, a push plate is fixedly connected to the output end of the lower electric telescopic cylinder, a top groove is opened at the top of the sorting platform and corresponding to the push plate, a pair of fixed plates are provided on the sorting platform and above the top groove, side plates are fixedly connected between the fixed plates, a positioning plate is provided between the fixed plates, a round frame is fixedly connected to the front side of the sorting platform, a winding drum is rotatably connected to the inner side of the round frame, a pull rope is wound around the outer wall of the winding drum, one end of the pull rope is fixedly connected to the outer wall of the winding drum, and a pulling mechanism for pulling the fixed plate to slide downward at a fixed distance is provided on the winding drum.

[0008] In the above technical solution, further, the top of the sorting platform is flush with the upper surface of the conveyor belt of the conveying mechanism, the top of the sorting platform and both sides of the push plate are fixedly connected with upper baffles, and the top of the sorting platform and the front side of the push plate are fixedly connected with lower baffles.

[0009] In the above technical solution, further, a bottom plate is fixedly connected to the bottom of the sorting table, and the bottom ends of the side walls of the bottom plate are respectively fixedly connected to a support seat and an upper plate, and a guide roller is rotatably connected to the inner side of the support seat, and the other end of the pull rope passes through the bottom end of the fixed plate fixedly connected to the bottom from under the guide roller, and the pull rope is arranged through the top end of the upper plate, and a pair of upper springs are fixedly connected between the upper plate and the bottom of the fixed plate at the bottom.

[0010] In the above technical scheme, further, the pulling mechanism includes an extrusion rod, a horizontal plate is slidably penetrated through the front side of the circular frame, the extrusion rod is slidably connected to the side wall of the horizontal plate, a plurality of straight grooves are equidistantly provided on the inner side of the winding drum, an inclined groove is provided between the plurality of straight grooves, and the inclined groove is communicated with both ends of two adjacent inclined grooves, an upper groove and a lower groove are respectively provided at both ends of the straight groove, and the connection between the upper groove and the inclined groove is inclined, and the connection between the lower groove and the straight groove is inclined, the extrusion rod is inserted into the inner side of one of the lower grooves, a lower spring is fixedly connected between the outer wall of the extrusion rod and the side wall of the horizontal plate, a right-angle block with an inclined surface is provided on the front side of the sorting platform and next to the horizontal plate, and a connecting frame is fixedly connected between the right-angle block and the push plate.

[0011] In the above technical solution, further, a through groove is opened on the front side of the horizontal plate, a roller is rotatably connected to the inner side of the through groove, and the roller contacts the inclined surface of the right-angle block, a reset plate is fixedly connected to the side wall of the horizontal plate, and a reset spring is fixedly connected between the reset plate and the outer wall of the circular frame.

[0012] In the above technical solution, further, a release groove is opened on the front side of the circular frame, and the end of the extrusion rod is set to a smooth arc surface, a spiral spring is provided on the inner side of the winding drum, one end of the spiral spring is fixedly connected to the inner side of the winding drum, and the other end of the spiral spring is fixedly connected to the inner side of the circular frame.

[0013] In the above technical solution, further, a touch sensor is fixedly connected to the top of the circular frame and close to one side of the push plate, and a touch plate for pressing the touch sensor is fixedly connected to the bottom of the connecting frame.

[0014] In the above technical solution, further, a sliding groove is opened at the top of the fixed plate, and a screw is rotatably connected to the inner side of the sliding groove. The side wall of the screw passes through the outer wall of the fixed plate and is fixedly connected to a rotating block. The outer wall of the screw passes through a sliding block connected by a thread. The sliding block is fixedly connected to the outer wall of the positioning plate, and the side wall of the positioning plate is fixedly connected to a plurality of sliding rods arranged through the side walls of the side plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can automatically push unqualified electronic price tags between the side plates through the arrangement of the upper electric telescopic cylinder, the lower electric telescopic cylinder and the pulling mechanism, and can drive the pushed electronic price tags to move downward to ensure the normal pushing of subsequent electronic price tags, thereby realizing automatic sorting of the sorted unqualified electronic price tags, without the need to sort after the sorting is completed, and improving the sorting effect of the device.

[0016] 2. The present invention can adjust the sorting space according to the size of the electronic price tag to be sorted and tested by setting the screw, the rotating block and the sliding block, so that electronic price tags of various specifications can be sorted and sorted, thereby improving the application scope of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front three-dimensional structure of the sorting and testing device of the present invention; Figure 2 The appended Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 3 It is a schematic diagram of the partial appearance structure of the upper electric telescopic cylinder and the T-shaped plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the sorting platform of the present invention from a rear view; Figure 5The appended Figure 4 A schematic diagram of the partially enlarged structure at B in the middle; Figure 6 It is a schematic diagram of the overall appearance structure of the lower electric telescopic cylinder and the right-angle block of the present invention; Figure 7 It is a schematic diagram of the overall appearance structure of the winding drum and the spiral spring of the present invention; Figure 8 It is a schematic diagram of the full-section three-dimensional structure of the winding drum of the present invention; Fig. 9 It is a schematic diagram of the overall appearance structure of the winding drum and the cross plate of the present invention.

[0018] In the figure: 1. test bench; 2. visual inspection mechanism; 3. conveyor plate; 4. conveyor mechanism; 5. T-shaped plate; 6. upper electric telescopic cylinder; 7. storage slot; 8. L-shaped plate; 9. sorting table; 10. upper baffle plate; 11. lower electric telescopic cylinder; 12. push plate; 13. top slot; 14. fixed plate; 15. side plate; 16. positioning plate; 17. round frame; 18. take-up drum; 19. pull rope; 20. bottom plate; 21. support seat; 22. upper plate; 23. Guide roller; 24, lower baffle; 25, upper spring; 26, extrusion rod; 27, horizontal plate; 28, straight groove; 29, inclined groove; 30, upper groove; 31, lower groove; 32, right-angle block; 33, connecting frame; 34, lower spring; 35, reset plate; 36, reset spring; 37, release groove; 38, scroll spring; 39, touch sensor; 40, touch plate; 41, screw; 42, rotating block; 43, sliding block; 44, roller; 45, sliding rod. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] like Figure 1-9The sorting test device of an electronic price tag shown in the figure comprises a test bench 1 and a visual inspection mechanism 2 arranged on the test bench 1. The working principle of the visual inspection mechanism 2 involves multiple aspects such as optical imaging, image processing and pattern recognition. Through these technologies, the visual inspection machine can achieve high-precision, high-speed and high-stability detection of objects. It is a mature technology in the prior art and will not be described in detail here. A pair of conveying plates 3 is fixedly connected to the test bench 1. A conveying mechanism 4 for conveying electronic price tags is arranged between the conveying plates 3. The conveying mechanism 4 is mainly composed of a motor, a conveyor belt and a conveyor roller. It is a mature technology in the prior art and will not be described in detail here. One of the side walls of the conveying plate 3 is located A T-shaped plate 5 is fixedly connected above the conveying mechanism 4. Through the setting of the T-shaped plate 5, the electronic price tag on the conveying mechanism 4 can be limited. An upper electric telescopic cylinder 6 is fixedly connected to the top of the T-shaped plate 5, and the upper electric telescopic cylinder 6 is electrically connected to the visual inspection mechanism 2 through a controller. The visual inspection mechanism 2 can detect whether the electronic price tag has defects, and the upper electric telescopic cylinder 6 can be controlled to start and sort the electronic price tags. A storage groove 7 is opened on the side wall of the T-shaped plate 5. Through the setting of the storage groove 7, the L-shaped plate 8 can be stored to avoid hindering the normal transportation of the electronic price tag on the conveying mechanism 4. The output end of the upper electric telescopic cylinder 6 is located inside the storage groove 7 and is fixedly connected to the L-shaped plate 8; A sorting platform 9 is fixedly connected to the front side of the test platform 1, a lower electric telescopic cylinder 11 is fixedly connected to the top of the sorting platform 9, a push plate 12 is fixedly connected to the output end of the lower electric telescopic cylinder 11, a top groove 13 is opened at the top of the sorting platform 9 and at a position corresponding to the push plate 12, a pair of fixed plates 14 are provided on the sorting platform 9 and above the top groove 13, side plates 15 are fixedly connected between the fixed plates 14, and positioning plates 16 are provided between the fixed plates 14, a round frame 17 is fixedly connected to the front side of the sorting platform 9, a winding drum 18 is rotatably connected to the inner side of the round frame 17, a pull rope 19 is wound around the outer wall of the winding drum 18, one end of the pull rope 19 is fixedly connected to the outer wall of the winding drum 18, and a pulling mechanism for pulling the fixed plate 14 to slide downward at a fixed distance is provided on the winding drum 18; A bottom plate 20 is fixedly connected to the bottom of the sorting table 9, and a support seat 21 and an upper plate 22 are fixedly connected to the bottom ends of the side walls of the bottom plate 20, respectively. A guide roller 23 is rotatably connected to the inner side of the support seat 21, and the other end of the pull rope 19 passes through the bottom end of the fixed plate 14 fixedly connected to the bottom from below the guide roller 23, and the pull rope 19 is arranged through the top of the upper plate 22, and a pair of upper springs 25 are fixedly connected between the upper plate 22 and the bottom of the fixed plate 14 at the bottom. Through the arrangement of the upper springs 25, it is convenient to push the fixed plate 14 to quickly reset after the limit is released; During the sorting test of the electronic price tags, the finished electronic price tags are placed on the conveyor belt of the conveying mechanism 4 in sequence through the feeder, so that the electronic price tags are driven by the conveying mechanism 4 to pass through the visual inspection mechanism 2 for inspection, and then the qualified electronic price tags are transported to the subsequent packaging process through the conveying mechanism 4. When there are defective and unqualified electronic price tags, the visual inspection mechanism 2 will transmit a signal to the controller, and the controller will control the upper electric telescopic cylinder 6 to start and drive the L-shaped plate 8 to move, thereby driving the L-shaped plate 8 to move out of the storage The unqualified electronic price tags on the conveying mechanism 4 are then moved to the side of the L-shaped plate 8, thereby preventing the unqualified electronic price tags from continuing to be conveyed backwards. Subsequently, under the continued driving of the upper electric telescopic cylinder 6, the unqualified electronic price tags are pushed to the side of the push plate 12 on the sorting platform 9. The upper electric telescopic cylinder 6 can then be controlled to reset, and the electronic price tags are moved to the side of the push plate 12. The lower electric telescopic cylinder 11 is controlled to start and drive the push plate 12 to move, so that the electronic price tags are pushed onto the fixed plate 14 through the push plate 12, thereby realizing the automatic pushing of the electronic price tags.

[0022] The pulling mechanism includes an extrusion rod 26, a horizontal plate 27 is slidably connected to the front side of the round frame 17, the extrusion rod 26 is slidably connected to the side wall of the horizontal plate 27, a plurality of straight grooves 28 are equidistantly provided on the inner side of the winding drum 18, an inclined groove 29 is provided between the plurality of straight grooves 28, and the inclined groove 29 is connected to the two ends of two adjacent inclined grooves 29, an upper groove 30 and a lower groove 31 are provided at the two ends of the straight groove 28, and the connection between the upper groove 30 and the inclined groove 29 is inclined, and the connection between the lower groove 31 and the straight groove 28 is inclined, the extrusion rod 26 is inserted into the inner side of one of the lower grooves 31, a lower spring 34 is fixedly connected between the outer wall of the extrusion rod 26 and the side wall of the horizontal plate 27, a right-angle block 32 with an inclined surface is provided on the front side of the sorting platform 9 and next to the horizontal plate 27, and a connecting frame 33 is fixedly connected between the right-angle block 32 and the push plate 12; When the lower electric telescopic cylinder 11 pushes the unqualified electronic price tag onto the fixed plate 14, the right-angle block 32 is driven to move through the connecting frame 33, and then the roller 44 on the side wall of the horizontal plate 27 is squeezed by the inclined surface of the right-angle block 32, so that the roller 44 and the horizontal plate 27 move on the round frame 17, and the reset spring 36 is gradually compressed, and the squeezing rod 26 on the horizontal plate 27 is driven to move. At this time, the squeezing rod 26 is located in the lower groove 31. Since there is a step between the lower groove 31 and the inclined groove 29, The push plate 12 then pushes the extrusion rod 26 out of the lower groove 31 and into the straight groove 28, and stretches the lower spring 34 outward. Then, under the continued extrusion of the right-angle block 32, the extrusion rod 26 is driven to slide to the side of the upper groove 30, and then the extrusion rod 26 is pushed into the upper groove 30 under the elastic force of the lower spring 34. At this time, the push plate 12 completely pushes the unqualified electronic price tag onto the fixed plate 14, and then the lower electric telescopic cylinder 11 can be controlled. The push plate 12 is pulled to reset, and then the right-angle block 32 is reset through the connecting frame 33, thereby gradually releasing the squeezing of the cross plate 27 and the roller 44, and then the cross plate 27 is pushed to reset under the elastic force of the reset spring 36. At this time, since the squeezing rod 26 is inserted into the upper groove 30, and there is a step between the upper groove 30 and the straight groove 28, the squeezing rod 26 is reset under the thrust of the reset spring 36, thereby squeezing the inclined groove 29 to drive the winding drum 18 to rotate. The pull rope 19 on the winding drum 18 is rotated, and then the pull rope 19 is wound up, so that the pull rope 19 is driven to pull the fixed plate 14 downward under the guidance of the guide roller 23 to slide downward, and gradually compress the upper spring 25, thereby driving the pushed electronic price tag to move downward, ensuring the normal pushing of the subsequent electronic price tag, and then the squeezing rod 26 moves out of the inclined slot 29 to the side of the lower groove 31, and then the squeezing rod 26 is pushed into the lower groove 31 under the elastic force of the lower spring 34, and this is repeated to realize the automatic sorting of unqualified electronic price tags.

[0023] In order to improve the stability of the device during operation, and the top of the sorting platform 9 is flush with the upper surface of the conveyor belt of the conveying mechanism 4, the top of the sorting platform 9 and on both sides of the push plate 12 are fixedly connected with an upper baffle 10, and the top of the sorting platform 9 and on the front side of the push plate 12 are fixedly connected with a lower baffle 24. Through the arrangement of the upper baffle 10 and the lower baffle 24, when the upper electric telescopic cylinder 6 pushes the unqualified electronic price tags on the conveying mechanism 4 to move, it can play a limiting role, ensuring that the electronic price tags can be neatly moved to the side of the push plate 12, so as to facilitate the subsequent accurate pushing into the fixed plate 14 for sorting.

[0024] In order to improve the silky performance during the operation of the device, a through groove is opened on the front side of the cross plate 27, and a roller 44 is rotatably connected to the inner side of the through groove, and the roller 44 contacts the inclined surface of the right-angle block 32. Through the setting of the roller 44, the sliding friction when the cross plate 27 contacts the right-angle block 32 can be converted into rolling friction, so that the right-angle block 32 squeezes the cross plate 27 to slide more silkily, thereby improving the silky performance during the operation of the device. A reset plate 35 is fixedly connected to the side wall of the cross plate 27, and a reset spring 36 is fixedly connected between the reset plate 35 and the outer wall of the circular frame 17. Through the setting of the reset plate 35 and the reset spring 36, when the right-angle block 32 is reset to release the squeezing of the roller 44, the elastic force of the reset spring 36 pushes the cross plate 27 to reset.

[0025] In order to reset the fixing plate 14 after taking out the sorted electronic price tag, a release groove 37 is provided on the front side of the circular frame 17, and the end of the extrusion rod 26 is set as a smooth arc surface, and a spiral spring 38 is provided on the inner side of the winding drum 18, one end of the spiral spring 38 is fixedly connected to the inner side of the winding drum 18, and the other end of the spiral spring 38 is fixedly connected to the inner side of the circular frame 17; By setting the release slot 37, it is convenient for the staff to pull the extrusion rod 26 in the take-up drum 18 to slide out of the straight slot 28 and compress the lower spring 34, thereby releasing the rotation position restriction of the take-up drum 18. Subsequently, under the action of the spiral spring 38, the take-up drum 18 is driven to rotate and reset, and the pull rope 19 is gradually unwound, thereby releasing the pulling on the fixed plate 14. Subsequently, the fixed plate 14 is pushed to reset under the elastic force of the upper spring 25, and then the extrusion rod 26 is released. Under the elastic force of the lower spring 34, the extrusion rod 26 is pushed into the corresponding straight slot 28 to complete the reset, thereby improving the convenience of the device during operation.

[0026] In order to improve the automation degree of the device, a touch sensor 39 is fixedly connected to the top of the circular frame 17 and close to the side of the push plate 12, and the touch sensor 39 is electrically connected to the lower electric telescopic cylinder 11 through the controller. A touch plate 40 for squeezing the touch sensor 39 is fixedly connected to the bottom of the connecting frame 33. When the lower electric telescopic cylinder 11 drives the push plate 12 to move and pushes the unqualified electronic price tag completely onto the fixed plate 14, the touch plate 40 will touch the touch sensor 39, and then the touch sensor 39 will transmit the signal to the controller, and the controller will control the lower electric telescopic cylinder 11 to move in the opposite direction for reset, thereby realizing the automatic operation of the device.

[0027] In order to adjust the sorting space according to the size of the sorting test electronic price tag, a slide groove is provided at the top of the fixed plate 14, and a screw rod 41 is rotatably connected to the inner side of the slide groove. The side wall of the screw rod 41 passes through the outer wall of the fixed plate 14 and is fixedly connected to a rotating block 42. The outer wall of the screw 41 passes through a sliding block 43 connected by a thread. The sliding block 43 is fixedly connected to the outer wall of the positioning plate 16. The side wall of the positioning plate 16 is fixedly connected to a plurality of sliding rods 45 arranged through the side wall of the side plate 15; When sorting electronic price tags of different sizes, the screw 41 is rotated by rotating the rotating block 42, which in turn drives the threaded sliding block 43 to move, thereby driving the positioning plate 16 to move between the fixed plates 14, and at the same time drives the sliding rod 45 to move, thereby realizing the adjustment of the sorting space, which can improve the universal performance of the device.

[0028] The basic principles, main features and advantages of the present invention are shown and described above.

[0029] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A sorting test device for electronic price tags, comprising a test bench (1), and a visual inspection mechanism (2) arranged on the test bench (1), characterized in that: A pair of conveying plates (3) are fixedly connected to the test bench (1), a conveying mechanism (4) for conveying electronic price tags is provided between the conveying plates (3), a T-shaped plate (5) is fixedly connected to the side wall of one of the conveying plates (3) and located above the conveying mechanism (4), an upper electric telescopic cylinder (6) is fixedly connected to the top of the T-shaped plate (5), a storage groove (7) is provided on the side wall of the T-shaped plate (5), and an L-shaped plate (8) is fixedly connected to the output end of the upper electric telescopic cylinder (6) and located inside the storage groove (7); The front side of the test bench (1) is fixedly connected to a sorting platform (9), the top of the sorting platform (9) is fixedly connected to a lower electric telescopic cylinder (11), the output end of the lower electric telescopic cylinder (11) is fixedly connected to a push plate (12), a top groove (13) is provided at the top of the sorting platform (9) and at a position corresponding to the push plate (12), a pair of fixed plates (14) are provided on the sorting platform (9) and above the top groove (13), side plates (15) are fixedly connected between the fixed plates (14), positioning plates (16) are provided between the fixed plates (14), a round frame (17) is fixedly connected to the front side of the sorting platform (9), a winding drum (18) is rotatably connected to the inner side of the round frame (17), a pull rope (19) is wound around the outer wall of the winding drum (18), one end of the pull rope (19) is fixedly connected to the outer wall of the winding drum (18), and a pulling mechanism for pulling the fixed plate (14) to slide downward at a fixed distance is provided on the winding drum (18).

2. The electronic price tag sorting and testing device according to claim 1, characterized in that: The top of the sorting platform (9) is flush with the upper surface of the conveyor belt of the conveying mechanism (4); the top of the sorting platform (9) and both sides of the push plate (12) are fixedly connected to an upper baffle (10); the top of the sorting platform (9) and the front side of the push plate (12) are fixedly connected to a lower baffle (24).

3. The electronic price label sorting and testing device according to claim 1, characterized in that: The bottom of the sorting platform (9) is fixedly connected to a bottom plate (20), the bottom ends of the side walls of the bottom plate (20) are respectively fixedly connected to a support seat (21) and an upper plate (22), the inner side of the support seat (21) is rotatably connected to a guide roller (23), the other end of the pull rope (19) passes through the bottom end of a fixed plate (14) fixedly connected to the bottom from below the guide roller (23), and the pull rope (19) is arranged to pass through the top end of the upper plate (22), and a pair of upper springs (25) are fixedly connected between the upper plate (22) and the bottom of the fixed plate (14) at the bottom.

4. The electronic price tag sorting and testing device according to claim 1, characterized in that: The pulling mechanism comprises an extrusion rod (26), a horizontal plate (27) is slidably connected to the front side of the circular frame (17), the extrusion rod (26) is slidably connected to the side wall of the horizontal plate (27), a plurality of straight grooves (28) are equidistantly provided on the inner side of the winding drum (18), an inclined groove (29) is provided between the plurality of straight grooves (28), and the inclined grooves (29) are connected to the two ends of two adjacent inclined grooves (29), and the two ends of the straight groove (28) are respectively provided with an upper groove (30) and a lower groove (31), and the The connection between the upper groove (30) and the inclined groove (29) is inclined, and the connection between the lower groove (31) and the straight groove (28) is inclined. The extrusion rod (26) is inserted into the inner side of one of the lower grooves (31). A lower spring (34) is fixedly connected between the outer wall of the extrusion rod (26) and the side wall of the horizontal plate (27). A right-angle block (32) with an inclined surface is provided on the front side of the sorting platform (9) and next to the horizontal plate (27). A connecting frame (33) is fixedly connected between the right-angle block (32) and the push plate (12).

5. The electronic price label sorting and testing device according to claim 4, characterized in that: A through slot is formed on the front side of the transverse plate (27), a roller (44) is rotatably connected to the inner side of the through slot, and the roller (44) contacts the inclined surface of the right-angle block (32). A reset plate (35) is fixedly connected to the side wall of the transverse plate (27), and a reset spring (36) is fixedly connected between the reset plate (35) and the outer wall of the circular frame (17).

6. The electronic price label sorting and testing device according to claim 4, characterized in that: A release groove (37) is provided on the front side of the circular frame (17), and the end of the extrusion rod (26) is arranged as a smooth arc surface. A spiral spring (38) is provided on the inner side of the winding drum (18), one end of the spiral spring (38) is fixedly connected to the inner side of the winding drum (18), and the other end of the spiral spring (38) is fixedly connected to the inner side of the circular frame (17).

7. The electronic price label sorting and testing device according to claim 4, characterized in that: A touch sensor (39) is fixedly connected to the top of the circular frame (17) and close to one side of the push plate (12), and a touch plate (40) for pressing the touch sensor (39) is fixedly connected to the bottom of the connecting frame (33).

8. The electronic price label sorting and testing device according to claim 1, characterized in that: The top of each of the fixed plates (14) is provided with a slide groove, the inner side of each of the slide grooves is rotatably connected to a screw rod (41), the side wall of each of the screw rods (41) passes through the outer wall of the fixed plate (14) and is fixedly connected to a rotating block (42), the outer wall of each of the screw rods (41) passes through a threaded sliding block (43), the sliding block (43) is fixedly connected to the outer wall of the positioning plate (16), and the side wall of each of the positioning plate (16) is fixedly connected to a plurality of sliding rods (45) that pass through the side wall of the side plate (15).

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