Rewinding device suitable for suspension type electronic tag

Abstract

The utility model relates to the technical field of electronic tags, in particular to a rewinding device suitable for suspension type electronic tags, which comprises a support main body, an unwinding shaft and a winding shaft are arranged on the support main body, the unwinding shaft and the winding shaft are respectively driven by a driving device to rotate, a negative pressure mechanism is arranged at the winding shaft, and the negative pressure mechanism is arranged on the support main body. The negative pressure mechanism generates an airflow vortex around the rolling shaft, and the path of the airflow vortex is consistent with the rolling path of the electronic tag; the device further comprises a main control device, the main control device is connected with the driving device, static electricity generated by label friction in the unwinding and winding process can be effectively removed, the purpose of protecting a chip is achieved, the quality of the electronic label is guaranteed, and meanwhile the label can be smoothly wound into a winding core in the winding process.

Description

Technical Field

[0001] This utility model relates to the field of electronic tag technology, and specifically to a rewinding device suitable for suspended electronic tags. Background Technology

[0002] RFID (Radio Frequency Identification) technology is a non-contact automatic identification technology that automatically identifies target objects and acquires relevant data through radio frequency signals, without requiring manual intervention. Its main component is the RFID chip, which is made of silicon crystal and is susceptible to damage from pressure and electrostatic discharge, leading to chip failure. Therefore, the effects of pressure and static electricity on the tags must be carefully considered when manufacturing RFID tags.

[0003] Suspended RFID self-adhesive electronic tags are a type of RFID self-adhesive electronic tag produced using a special process, and are widely used in industries such as medical, blood, and daily chemicals. The adhesive area at the top of the tag is attached to the silicone paper backing, while the non-adhesive area at the bottom of the tag floats above the silicone paper backing. General inspection equipment, only designed for self-adhesive tags, lacks an electrostatic discharge (ESD) elimination mechanism. During inspection, friction between the tags themselves easily generates and accumulates static electricity, which can damage the RFID chip and thus the tag. Furthermore, only the take-up shaft has an active motor; the unwind shaft lacks one. During the take-up process, the tag paper is pulled by the take-up shaft's active motor, resulting in uncontrollable tension. This can lead to excessive tension that damages the RFID chip inside the tag, causing damage. Additionally, during the rewinding of suspended RFID self-adhesive electronic tags, the suspended layer at the bottom of the tag exits first. This suspended layer bends in the opposite direction due to air resistance, causing abnormal tag rewinding.

[0004] The label rewinding mechanism disclosed in CN219429261U can avoid static electricity residue on the rewound labels and enter the take-up reel via the pressing roller. However, during the label roll-up process, the surface condition of the electronic labels still needs to be inspected manually. Too many devices on the take-up and take-up paths affect the inspectors' observation of the electronic labels, and there is still room for improvement in the effectiveness of the pressing roller in preventing the labels from bending. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rewinding device suitable for suspended electronic tags.

[0006] The technical solution adopted by this application to solve its technical problem is as follows: a rewinding device suitable for suspended electronic tags includes a support body, on which an unwinding shaft and a rewinding shaft are provided. The unwinding shaft and the rewinding shaft are driven to rotate by a driving device. A negative pressure mechanism is provided at the rewinding shaft. The negative pressure mechanism generates an airflow vortex around the rewinding shaft. The path of the airflow vortex is consistent with the rewinding path of the electronic tag.

[0007] It also includes a main control device, which is connected to the drive device.

[0008] The negative pressure mechanism includes several air path air knives, and the air path air knives include two parts;

[0009] The first part is distributed around the circumference of the winding shaft;

[0010] The second part is located at the inlet of the take-up shaft, and the air knife in this part is positioned facing the front of the electronic tag.

[0011] The air knife in the air path is equipped with a progressive air volume control valve;

[0012] The ventilation rate of the second air path air knife is 0.2 MPa. The ventilation rate of the first air path air knife starts from the air path air knife closest to the winding shaft inlet and decreases sequentially along the winding direction of the winding shaft.

[0013] The unwinding shaft and the winding shaft are respectively mounted on the support body via a shaft base. The shaft base is connected to an electrostatic eliminator, which is grounded.

[0014] The support body is connected to a distance photoelectric sensor, which is positioned close to the take-up shaft, and the main control device is connected to the distance photoelectric sensor.

[0015] The support body is also provided with a path support column, which is ball-and-socket connected to the support body.

[0016] The path support column contacts the backing paper portion on the front of the electronic tag.

[0017] The supporting body is equipped with a counting photoelectric sensor, which faces the front of the electronic tag and is used to count the number of electronic tags in each roll.

[0018] The main control device is connected to a foot-operated emergency stop switch.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] This application adds an electrostatic elimination device to eliminate static electricity, which can effectively remove the static electricity generated by the friction of the label during unwinding and rewinding, thereby protecting the chip and ensuring the quality of the electronic label. By distributing air passage openings with different air vent angles and different air volumes in the winding direction through a negative pressure mechanism, an airflow vortex is formed. The rotation path of the airflow vortex is consistent with the rewinding path of the label paper. The airflow vortex can tightly adhere the non-adhesive area of ​​the label to the silicone paper surface of the backing paper. During rewinding, the label is smoothly wound into the core. At the same time, combined with the tension compensator, the rewinding tension is kept constant, and normal rewinding is achieved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the winding and unwinding of the electronic tag of this utility model;

[0023] In the diagram: 1. Support body; 2. Unwinding shaft; 3. Rewinding shaft; 4. Air path knife; 5. Distance photoelectric sensor; 6. Main control equipment; 7. Rewinding chassis; 8. Counting photoelectric sensor; 9. Static elimination device; 10. Emergency stop switch; 11. Path support column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1

[0028] Refer to 1 to Figure 2 The suspended electronic tag includes a backing paper made of silicone-coated paper. The backing paper has two sides, with the electronic tag affixed to the front. The electronic tag can be divided into two areas: one area with adhesive, which is bonded to the backing paper, and the other area without adhesive, which is not connected to the backing paper and remains suspended. During the inspection and rewinding of the electronic tag, the area without adhesive may bend backwards due to air resistance as it travels along the tag's winding path, leading to abnormal winding.

[0029] Rewinding devices suitable for floating electronic tags include:

[0030] The main support 1 adopts a desktop design with a height range of 70-76cm, a length of 120-140cm, and a width of 80-90cm. The bottom of the main support 1 is hollowed out to increase the leg space for the inspectors. The overall design conforms to ergonomics.

[0031] The support body 1 is equipped with an unwinding shaft 2 and a winding shaft 3. The unwinding shaft 2 and the winding shaft 3 are driven to rotate by a drive device, which is a DC drive motor and is controlled by a main control device 6.

[0032] A negative pressure mechanism is installed at the take-up shaft 3. This mechanism includes several air path knives 4, which are divided into two parts. The first part is distributed circumferentially around the take-up shaft 3. This part of the air path knives 4 is used to generate a negative pressure airflow vortex. The rotation path of the airflow vortex is consistent with the take-up direction of the take-up shaft 3. The shortest distance between the surface of this part of the air path knives 4 and the outermost ring of the take-up shaft 3 after winding is maintained at approximately 5cm. In other words, the straight-line distance between the central axis of the take-up shaft 3 and the central axis of the air path knives 4 is the maximum radius of the take-up shaft 3 after winding + the radius of the air path knives 4 + 5cm. This ensures the effect of the airflow vortex without hindering the winding operation. (Refer to...) Figure 1 In this application, four air path air knives 4 are set up in this part, which are distributed around the circumference of the winding shaft 3.

[0033] The second part of the air setting is located at the winding inlet of the winding shaft 3, and the air path air knife 4 is set towards the front of the suspended electronic tag. It is used to blow the non-adhesive area of ​​the electronic tag onto the silicone paper surface, so that the suspended electronic tag area can adhere to the silicone paper surface.

[0034] The bottom of the air blade 4 and the supporting body 1 can be connected by sliding damping or threaded connection, so that the air blade 4 can move up and down to adjust its height and angle.

[0035] The angle between the air outlet of the air knife 4 and the running direction of the electronic tag can be adjusted within a range of 90°. As a preferred option, the angle range is preferably between 30° and 60°.

[0036] The height of the air knife 4 is adjusted according to the size and width of the tag so that the airflow generated by the air knife 4 always acts on the surface of the electronic tag.

[0037] The air knife 4 is also equipped with a progressive air volume control valve to adjust the air volume at the air outlet. As a preferred embodiment, the air volume of the air knife 4 (i.e., the second part) located at the winding inlet of the winding shaft 3 is set to about 0.2 MPa. Subsequently, the air volume of the air knives 4 arranged around the circumference of the winding shaft 3 decreases by 10% along the winding direction of the winding shaft 3. If the number of air knives 4 increases, the reduction amount needs to be adjusted accordingly.

[0038] The negative pressure mechanism can effectively generate a stable and controllable negative pressure airflow vortex. During winding, the rotation path of the airflow vortex is consistent with the winding path of the electronic tag. When the electronic tag enters the range of the winding shaft 3, the airflow vortex presses the non-adhesive area of ​​the tag tightly against the silicone paper surface of the backing paper, ensuring that the non-adhesive area (i.e., the suspended electronic tag area) can be wound normally during winding.

[0039] The airflow generated by the air outlet of the air path wind knife 4 directly acts on both ends of the suspended electronic tag area and eliminates the static electricity adsorbed on the material surface, and the generated airflow will not affect the already formed airflow vortex.

[0040] The support body 1 is also equipped with a distance photoelectric sensor 5, which is located close to the take-up shaft 3. It is used to monitor the electronic tag winding thickness of the take-up shaft 3 at regular intervals and send the detection information to the main control device 6 in real time. The main control device 6 adjusts the speed of the DC drive motor that controls the rotation of the take-up and unwinding shaft in real time based on the winding thickness of the electronic tag to ensure the stability of the winding tension.

[0041] In this embodiment, a tension compensator is installed at the unwinding shaft 2. During unwinding and rewinding, the tension compensator tightens the error in the paper path length between the unwinding shaft 2 and the rewinding shaft 3, thereby further ensuring the stability of the unwinding and rewinding tension values.

[0042] The main control device 6 uses existing technology to adjust the motor speed based on the distance photoelectric sensor 5, which will not be elaborated here. The adjustment principle is that the larger the roll diameter, the slower the motor speed, so that the electronic tag paper path length of the unwinding shaft 2 and the electronic tag paper path length of the rewinding shaft 3 are basically the same, with an error of <0.3m.

[0043] The winding and unwinding reel of this application is mounted on the reel base 7 and connected to the support body 1 via the reel base 7. The distance photoelectric sensor 5 is positioned approximately 3 cm from the outer periphery of the reel base 7, facing the reel 3.

[0044] The unwinding shaft 2 and the rewinding shaft 3 have a base 7 made of stainless steel. The base 7 is connected to an electrostatic eliminator 9, which is grounded. When rewinding, the end face of the electronic tag paper contacts the base 7, and the static electricity generated on the surface of the electronic tag paper is eliminated along the electrostatic rope. This ensures that static electricity can be eliminated in time when the electronic tag is unwound and rewound, preventing static electricity from damaging the chip of the electronic tag and protecting the electronic tag.

[0045] Example 2

[0046] Because the desktop of the support body 1 is a flat design, it is convenient for inspectors to sit at the front of the desktop to inspect the dirtiness of the electronic tags. The electronic tag roll is placed vertically on the unwinding shaft 2 on the desktop of the support body 1, and the take-up paper core is placed on the take-up shaft 3. Based on embodiment 1, a path support column 11 is added to one side of the running path between the unwinding shaft 2 and the take-up shaft 3.

[0047] The path support column 11 and the support body 1 are connected by a ball joint. This arrangement is because, during the winding and unwinding of the electronic tag, workers need to check the surface of the electronic tag for dirt. To facilitate viewing, they don't need to deliberately lower or raise their heads; they usually slightly press the electronic tag with their hands or a pressure plate to tilt it, making it easier to see. The path support column 11 is located on the front side of the backing paper, in contact with the silicone paper. When the electronic tag is tilted by pressing it, the path support column 11 tilts accordingly and rotates accordingly based on the running direction of the electronic tag to reduce friction and static electricity.

[0048] Furthermore, the path support column 11 can be divided into two parts, which are rotatably connected by bearings. One part is ball-jointed to the support body 1, and the other part is in contact with the electronic tag and rotates as the electronic tag moves.

[0049] The path support column 11 prevents the electronic tag paper from shaking back and forth during equipment operation, ensuring the stable operation of the electronic tag paper path and facilitating the inspection of electronic tags by inspection personnel.

[0050] The main support 1 is also equipped with a counting photoelectric sensor 8, which faces the front of the electronic tag and is used to count the number of electronic tags in each roll. The counting photoelectric sensor 8 is connected to the main control device 6 and the count is displayed on the display on the main control device 6, which is convenient for inspection personnel to verify.

[0051] The main control device 6 is connected to a foot-operated emergency stop switch 10. If dirt or other defects are found during the inspection process, the machine can be stopped in time by using the emergency stop switch 10, so as to free the inspectors' hands and process the defect labels.

[0052] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A rewinding device suitable for a suspended electronic label, comprising a support body (1) provided with an unwinding shaft (2) and a winding shaft (3), which are driven in rotation by drive means, characterized in that, The winding shaft (3) is provided with a negative pressure mechanism, which generates an air flow vortex around the winding shaft (3), and the path of the air flow vortex is consistent with the winding path of the electronic tag. The main control device (6) is further included, which is connected with the driving device.

2. The rewinding device suitable for a suspended electronic label according to claim 1, characterized in that, The negative pressure mechanism includes a plurality of air path air knives (4), which include two parts. The first part is distributed around the circumference of the winding shaft (3); The second part is provided at the inlet of the winding shaft (3), and the air path air knife (4) of this part is arranged towards the front surface of the electronic tag.

3. The rewinding device suitable for a suspended electronic label according to claim 2, characterized in that, The air path air knife (4) is provided with a progressive air volume control valve. The air volume of the second part air path air knife (4) is 0.2Mpa, and the air volume of the first part air path air knife (4) decreases in turn along the winding direction of the winding shaft (3) from the air path air knife (4) closest to the inlet of the winding shaft (3).

4. The rewinding device suitable for a suspended electronic label according to claim 1, characterized in that, The unwinding shaft (2) and the winding shaft (3) are respectively arranged on the support body (1) through the winding shaft bottom plate (7), the winding shaft bottom plate (7) is respectively connected with the static electricity elimination device (9), and the static electricity elimination device (9) is grounded.

5. The rewinding device suitable for a suspended electronic label according to claim 1, characterized in that, The support body (1) is connected with the distance photoelectric sensor (5), the distance photoelectric sensor (5) is arranged close to the winding shaft (3), and the main control device (6) is connected with the distance photoelectric sensor (5).

6. The rewinding device suitable for a suspended electronic label according to claim 1, characterized in that, The support body (1) is further provided with a path support column (11), and the path support column (11) is connected with the support body (1) through a ball joint. The path support column (11) is in contact with the bottom paper part of the front surface of the electronic tag.

7. The rewinding device suitable for a suspended electronic label according to claim 1, characterized in that, The support body (1) is provided with a counting photoelectric sensor (8), which is arranged towards the front surface of the electronic tag, and is used for counting the number of each roll of electronic tag.

8. The rewinding device suitable for a suspended electronic label according to claim 1, characterized in that, The main control device (6) is connected with a foot-operated emergency stop switch (10).

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