An RFID tag blind cutting device and blind cutting process

Abstract

This invention discloses an RFID tag blind cutting device and process, including a base, with station supports on both sides of the top of the base, and a crossbar between the top of the station supports. Color sensors for scanning positioning marking holes are mounted at both ends of the crossbar. A magnetic shaft is positioned in the middle of the station supports, below the color sensors. Circular die-cutting molds are arranged circumferentially on both ends of the magnetic shaft. Annular blind cutting blades are spaced circumferentially between the circular die-cutting molds at both ends of the magnetic shaft and extend axially. Positioning marking holes are provided on one or both sides of each annular blind cutting blade and between it and the circular die-cutting mold. A pressing roller is mounted below the circular die-cutting mold via a shaft. This invention's blind cutting device, in daily blind cutting processes, can achieve stable product signal recognition and improve debugging efficiency during production, as long as the offpitch design requirements are met, according to different product design needs.

Description

Technical Field

[0001] The invention relates to the field of RFID tag processing technology, specifically to an RFID tag blind cutting device and blind cutting process. Background Technology

[0002] Traditional RFID tags consist of inlay material and face material or double-sided adhesive. Generally, to improve production efficiency, the pitch (standard width) of the inlay material is designed with a small pitch, with raw materials ranging from 15mm to 40mm accounting for over 99% of the industry's supply. However, product design, depending on the industry and customer's application scenario, will have a larger pitch than the inlay pitch for easier application. Such products are referred to in the industry as off-pitch white tags. The traditional RFID tag off-pitch white tag (without a black mark) production process involves cutting or creating a wettlay from the small pitch (standard width) inlay and embedding it into the face material of a designated large pitch. "Designated" usually refers to printing a fixed black mark for positioning. The product is then die-cut according to the die-cutting method of the large pitch.

[0003] Existing RFID electronic tag blind cutting involves designing positioning marks on a circular die. Two methods are available: 1. Designing metal blocks at fixed intervals on the die, with the blocks protruding 0.59mm from the die surface, and the magnetic shaft's shoulder height being 0.74mm. The device's metal sensor detects the protrusions on the die surface to trigger a signal. 2. Attaching colored stickers between the patterns on the die. A color sensor detects color differences on the die surface to trigger a signal.

[0004] The main drawback of existing technology is its poor signal recognition stability. When a fixed-distance marking metal block is designed on the die, the metal block protrudes from the die surface with a height of 0.59mm, which cannot exceed the shoulder height of 0.74mm. The 0.59mm high metal block causes instability in metal sensor recognition, and the installation distance of the metal sensor is difficult to control. As the magnetic shaft rotates, the signal is sometimes recognized by the substrate and sometimes by the metal block, which cannot provide accurate positioning signals for the equipment. At the same time, the debugging efficiency is low. Colored stickers are pasted between the patterns on the die. After the die is rotated and the pattern gaps are pressed out, the excess colored stickers around the patterns need to be cleaned. Each production run requires additional machine setup time, which reduces production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an RFID tag blind cutting device and a blind cutting process to solve the problems mentioned in the background art. To achieve the above objective, the invention provides the following technical solution:

[0006] According to one aspect of the present invention, an RFID tag blind cutting device is provided, comprising a base, with station supports on both sides of the top of the base, a crossbar between the top of the station supports, color sensors for scanning positioning mark holes on both ends of the crossbar, a magnetic shaft between the middle of the station supports and below the color sensors, circular die-cutting molds on both ends of the magnetic shaft in a circumferential direction, annular blind cutting blades spaced circumferentially between the circular die-cutting molds at both ends of the magnetic shaft and extending in the axial direction, forming annular closed structures recessed towards the axis center in the area of ​​the annular blind cutting blades, positioning mark holes on one or both sides of each annular blind cutting blade and between the circular die-cutting mold, wherein the positioning mark holes are located at the center line positions on both sides of the annular blind cutting blades, a pressing roller is provided below the circular die-cutting mold via a shaft, and a controller electrically connected to the color sensors is provided on one side of the station supports.

[0007] In a further preferred embodiment of the above scheme, a support frame is provided on the feed side of the extrusion roller, and mounting holes are provided on the corresponding surfaces of the support frame and the workstation bracket, and mounting bolts are provided on the inner side of the mounting holes.

[0008] In a further preferred embodiment of the above scheme, a colored reflective sticker (19) is provided inside the positioning mark hole, the color sensor is slidably mounted on the crossbar, a linear motion cylinder is provided on the crossbar, and the color sensor is installed on the linear motion cylinder.

[0009] In a further preferred embodiment of the above scheme, a shaft is provided between the workstation supports, and a guide roller is rotatably sleeved on the surface of the shaft.

[0010] In a further preferred embodiment of the above scheme, one end of the magnetic shaft passes through the workstation bracket and is equipped with a motor, the bottom of the motor is equipped with a base plate, and the output end of the motor is rotatably connected to the inner wall of the workstation bracket through a bearing.

[0011] In a further preferred embodiment of the above scheme, the positioning marking holes are arranged at equal intervals around the magnetic shaft surface on one side of the annular blind cutter, and the inner wall of the mounting hole and the surface of the mounting bolt are both provided with threads.

[0012] In a further preferred embodiment of the above scheme, a control button (3) is provided on one side surface of the workstation bracket, and the output end of the control button is electrically connected to the input end of the controller and the color sensor through a wire. The controller is generally a PLC controller or a single-chip microcomputer controller.

[0013] In a further preferred embodiment of the above scheme, a limiting roller is provided in front of the discharge side of the extrusion roller. The two ends of the limiting roller are installed on the outer wall between the two sides of the workstation bracket through limiting support members. A support opening is provided on the outer wall of the front surface of the workstation bracket. The limiting support members include a transverse fixing rod and a swing arm installed on both sides of the workstation bracket. The two ends of the limiting roller are horizontally connected to the lower ends of the swing arms on both sides of the workstation bracket through a connecting shaft. One end of the transverse fixing rod is fixed in the support opening, and the other end of the transverse fixing rod is sleeved in the upper end of the swing arm through a bearing. A buffer tension spring is provided between the swing arm and the side wall of the workstation bracket.

[0014] According to another aspect of the present invention, the present invention provides a blind cutting process for RFID tags, comprising the following steps: selecting an annular blind cutter on a magnetic shaft that is approximately the same size as the RFID tag; affixing a colored reflective sticker to the positioning mark hole on the magnetic shaft; and mounting the magnetic shaft on a workstation bracket; controlling a linear motion cylinder to move on a crossbar via a controller, causing a color sensor to scan the reflective sticker in the positioning mark hole of the magnetic shaft to obtain a reflection signal; positioning the color sensor on the crossbar and waiting for the magnetic shaft to start cutting the RFID tag; during the rotation of the magnetic shaft, the color sensor continuously acquires the reflection signal of the reflective sticker in the positioning mark hole, and outputs a transfer signal to the magnetic shaft control based on the reflection signal, so that the intermediate layer material of the RFID tag is transferred within the annular blind cutter, achieving a one-to-one correspondence between the annular blind cutter on the magnetic shaft and the transfer position of the intermediate layer material of the RFID tag.

[0015] Compared with existing technologies, the beneficial effects of the invention are:

[0016] This invention relates to an RFID tag blind cutting device. In daily use, the device directly drills holes in the die-cutting substrate. Before using the die, a colored sticker is affixed to the back of the die. After mounting the die on the magnetic shaft, a color sensor directly scans and positions the marking hole. The device can reliably acquire signals, reduces setup time, and improves production efficiency. It solves the problem of blind cutting off-pitch white tags. By scanning the colored marking block with a color sensor, the device achieves stable product signal recognition and improves debugging efficiency during production. The product transfer accuracy is controlled within ±1mm. This RFID tag blind cutting device can be applied to all RFID electronic tag off-pitch white tag production processes. Depending on the product design requirements, as long as the off-pitch design conditions are met, this device can be used to produce products, achieving stable product signal recognition and improving debugging efficiency during production. Attached Figure Description

[0017] Figure 1 This is the front view of the invention;

[0018] Figure 2 This is a diagram showing the positional relationship between the annular blind cutter and the positioning marking hole of the present invention;

[0019] Figure 3 Side view of the invention;

[0020] Figure 4 This is a schematic diagram of the guide roller section of the invention.

[0021] Figure 5 Side view of the support frame portion of the invention;

[0022] Figure 6 A schematic diagram of the installation structure of the limiting roller for the invention;

[0023] In the diagram: 1. Controller; 2. Crossbar; 3. Control button; 4. Color sensor; 5. Workstation bracket; 6. Circular die; 7. Positioning mark hole; 8. Motor; 9. Base plate; 10. Extrusion roller; 11. Support frame; 12. Base; 13. Shaft; 14. Guide roller; 15. Mounting bolt; 16. Mounting hole; 17. Magnetic shaft; 18. Circular blind cutter; 19. Reflective sticker; 20. Linear movement cylinder; 21. Limiting roller; 50. Support port; 220. Horizontal fixing rod; 221. Swing arm; 22. Connecting shaft; 223. Bearing; 224. Buffer tension spring. Detailed Implementation

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

[0025] Please see Figure 1-4The invention provides a technical solution: an RFID tag blind cutting device, including a base 12, with station supports 5 on both sides of the top of the base 12, and a crossbar 2 between the tops of the station supports 5. A magnetic shaft 17 is arranged in the middle of the station supports 5 and below a color sensor 4. Circular die-cutting molds 6 are arranged circumferentially on both ends of the magnetic shaft 17. Annular blind cutting blades 18 are arranged circumferentially and extended axially between the circular die-cutting molds 6 at both ends of the magnetic shaft 17. An annular closed structure recessed towards the axis center is formed in the area of ​​the annular blind cutting blades 18. The circular die-cutting molds 6 are mounted on the magnetic shaft 17 of the device to cut the wide portions on both sides of the tag, so that the excess wide portion can be removed simultaneously during the blind cutting process. The magnetic shaft 17 is mounted on the die-cutting station supports 5, and positioning marking holes 7 are provided on one or both sides of each annular blind cutting blade 18. Figure 2 As shown, the size of the positioning mark hole 7 is 6mm × 4mm, the size of the annular blind cutter 18 is 60mm × 40mm, the distance between the annular blind cutter 18 and the positioning mark hole 7 is 20mm, and the distance between the edges of adjacent annular blind cutters 18 is 3mm-5mm. The positioning mark hole 7 is located at the center line of both sides of the annular blind cutter 18. After the colored sticker is affixed to the back of the die-cutting mold and the die-cutting mold is installed on the magnetic shaft 17, the transfer position of the intermediate layer inlay material is determined by scanning the positioning mark hole 7 between the circular die-cutting mold 6 and the annular blind cutter 18 with the color sensor 4. When the sensor detects a signal, the inlay performs the transfer operation, realizing the die-cutting model and the inlay material transfer. The transfer positions correspond one-to-one, thus realizing the positioning transfer process. Due to the high manufacturing precision of the annular blind cutter 18, a squeezing roller 10 is set below the magnetic shaft 17 via the shaft 13. A controller 1 is set on one side surface of the workstation bracket 5. The controller 1, which is electrically connected to the color sensor 4, is set on one side surface of the workstation bracket 5, which can facilitate the setting of braking to realize the coordinated control operation of the device. A support frame 11 is set on one side (input side or feeding side) of the squeezing roller 10. Mounting holes 16 are opened at corresponding positions on the surfaces of the support frame 11 and the workstation bracket 5, and mounting bolts 15 are set on the inner side of the mounting holes 16, which can connect and limit the guide roller 14 to the workstation in real time.

[0026] In the preferred embodiment of the present invention, such as Figure 1 and Figure 2As shown, a colored reflective sticker 19 is provided inside the positioning mark hole 7. The color sensor 4 is slidably mounted on the crossbar 2. A linear movement cylinder 20 is provided on the crossbar 2. The color sensor 4 is installed on the linear movement cylinder 20. After the magnetic shaft 17 of different sizes is installed on the positioning bracket 5, the position of the color sensor 4 needs to be recalibrated and adjusted. The linear movement cylinder 20 moves on the crossbar 2 so that the color sensor 4 is aligned with the positioning mark hole 7 and then stops and positions itself in the required position. The color sensor 4 scans the reflection signal of the reflective sticker 19 inside the positioning mark hole 7, thereby determining the position of the positioning mark hole 7 on the magnetic shaft 17 and detecting the reflection signal. This ensures that the intermediate layer material of the RFID tag is accurately transferred within the annular blind cutter 18.

[0027] In this invention, such as Figure 4 and Figure 5 A shaft 13 is provided between the support frames 11, and a guide roller 14 is rotatably sleeved on the surface of the shaft 13. One end of the magnetic shaft 17 passes through the workstation bracket 5 and a motor 8 is provided. A base plate 9 is provided at the bottom of the motor 8, which can provide driving power for the operation of the device and realize the transmission of labels. The output end of the motor 8 is rotatably connected to the inner wall of the workstation bracket 5 through a bearing. The positioning marking holes 7 are arranged at equal intervals around the surface of the magnetic shaft 17 on one side of the annular blind cutter 18. The inner wall of the mounting hole 16 and the surface of the mounting bolt 15 are both provided with threads. A control button 3 is provided on one side of the workstation bracket 5, and the output end of the control button 3 is electrically connected to the input end of the controller 1 and the color sensor 4 through a wire. This allows for convenient control of the controller 1 and the color sensor 4 to coordinate their operation, avoiding energy waste and malfunctions caused by long-term idle operation of the controller 1 and the color sensor 4.

[0028] In this invention, such as Figure 6As shown, a limiting roller 21 is provided in front of the discharge side of the extrusion roller 10. The two ends of the limiting roller 21 are mounted on the outer wall between the two sides of the workstation bracket 5 through limiting support members. A support opening 50 is provided on the outer wall of the front surface of the workstation bracket 5. The limiting support members include a transverse fixing rod 220 and a swing arm 221 mounted on both sides of the workstation bracket 5. The two ends of the limiting roller 21 are horizontally connected to the lower ends of the swing arms 221 on both sides of the workstation bracket 5 through a connecting shaft 222. One end of the transverse fixing rod 220 is fixed in the support opening 50, and the other end of the transverse fixing rod 220 is sleeved on the swing arm 221 through a bearing 223. Inside the upper end, a buffer tension spring 224 is provided between the swing arm 221 and the side wall of the workstation bracket 5. After the label is blind-cut, it is pulled upward along the lower surface of the limiting roller 21. During the traction process, the label is guided and limited forward by the limiting roller 21, and the label pulls the limiting roller 21 to swing up and down vertically on the swing arm 221. During the swinging process, the swing arm 221 is stretched by the buffer tension spring 224, so that the limiting roller 21 is pressed tightly on the label. The label is always in a taut state during the transmission process and always in a taut state during the blind cutting process, which improves the accuracy of blind cutting.

[0029] In this invention, such as Figures 1 to 6 As shown, this invention provides a blind cutting method using an RFID tag blind cutting device, specifically including the following steps: selecting an annular blind cutting blade 18 on the magnetic shaft 17 that is approximately the same size as the RFID tag; attaching a colored reflective sticker 19 to the positioning mark hole 7 on the magnetic shaft 17; and mounting the magnetic shaft 17 on the workstation bracket 5; controlling the linear movement cylinder 20 to move on the crossbar 2 via the controller, causing the color sensor 4 to scan the reflective sticker 19 in the positioning mark hole 7 of the magnetic shaft 17 to obtain a reflection signal; and positioning the color sensor on the crossbar 2 to wait for the magnetic shaft 17 to enter the RFID tag cutting state; during the rotation of the magnetic shaft 17, the color sensor 4... The device continuously acquires the reflected signals from the reflective sticker 19 inside the positioning mark hole 7. When the color sensor 4 scans the signal of the current positioning mark hole 7, it is about to enter the blind cutting operation. When the color sensor 4 scans the positioning mark hole 7 on the magnetic shaft 17 at the next position, it controls the output of the transfer signal to the magnetic shaft 17 according to the reflected signal, so that the intermediate layer material of the RFID tag is transferred in the annular blind cutter 18. This achieves a one-to-one correspondence between the annular blind cutter 18 on the magnetic shaft 17 and the transfer position of the intermediate layer material of the RFID tag. The device can obtain signals stably by directly scanning the positioning mark hole with the color sensor, which also reduces the machine setup time and improves production efficiency.

[0030] Therefore, when label blind cutting processing is required, the first step is to design positioning marking holes 7 on the annular blind cutter 18. The number of positioning marking holes 7 is consistent with the number of die-cutting patterns of the annular blind cutter 18, the pitch is consistent, and they correspond one-to-one. The annular blind cutter 18 is mounted on the magnetic shaft 17 of the equipment, and the magnetic shaft 17 is mounted on the die-cutting station bracket 5. The die-cutting control signal is canceled, and the intermediate layer inlay material is transferred and placed in the designated position in the die-cutting pattern by controlling the transfer signal, thereby realizing the production method of offpitch white labels. The normal operation of the equipment requires a sensor signal to work properly. When producing offpitch white labels, the die-cutting signal of the equipment is turned off, and the die-cutting work is carried out according to the control precision of the machine's own uniform rotation. This is called blind cutting. The cutting accuracy can be controlled within ±0.3mm. Before using the die, a colored sticker is attached to the back of the die. After the die is installed on the magnetic shaft 17, the transfer position of the middle layer inlay material is scanned by the color sensor 4 through the positioning mark hole 7 on the magnetic shaft 17. When the sensor scans the signal, the inlay performs the transfer operation, realizing a one-to-one correspondence between the die-cutting model and the transfer position of the inlay material, thus realizing the positioning transfer process. Because the manufacturing process of the annular blind cutter 18 has high precision, the manufacturing precision of the cutter is based on controlling the error of the die-cut product within ±0.03mm. Therefore, positioning mark holes 7 are designed on the annular blind cutter 18. The standard positioning mark processed by the CNC machine tool can be well controlled, thus providing a high-precision positioning mark for the transfer process and ensuring the stability of process precision control. When the product is produced at a production speed of 60m / min, the transfer accuracy can be controlled within ±1mm. Therefore, according to different product design requirements, as long as the Offpitch design conditions are met, the device of this invention can be used to produce the product, thereby achieving stable product signal recognition and improving debugging efficiency during production.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blind cutting process for an RFID tag blind cutting device, the blind cutting device comprising a base (12), characterized in that: The base (12) has workstation brackets (5) on both sides of its top. A crossbar (2) is provided between the tops of the workstation brackets (5). Color sensors (4) for scanning positioning mark holes (7) are provided at both ends of the crossbar (2). A magnetic shaft (17) is provided in the middle of the workstation brackets (5) and below the color sensors (4). Circular die-cutting molds (6) are provided on the circumferential surfaces of both ends of the magnetic shaft (17). The circular die-cutting molds (6) at both ends of the magnetic shaft (17) are spaced circumferentially and on the axial direction. An annular blind cutter (18) is provided extending to the center, and an annular closed structure recessed towards the axis is formed in the area of ​​the annular blind cutter (18). A positioning mark hole (7) is provided on one or both sides of each annular blind cutter (18) and between it and the circular die (6). The positioning mark hole (7) is located at the center line position on both sides of the annular blind cutter (18). An extrusion roller (10) is provided below the circular die (6) through a shaft (13). A controller (1) electrically connected to the color sensor (4) is provided on one side surface of the workstation bracket (5). One end of the magnetic shaft (17) passes through the workstation bracket (5) and is equipped with a motor (8). The bottom of the motor (8) is equipped with a base plate (9), and the output end of the motor (8) is rotatably connected to the inner wall of the workstation bracket (5) through a bearing. A limiting roller (21) is provided in front of the discharge side of the extrusion roller (10). The two ends of the limiting roller (21) are installed on the outer wall between the two sides of the workstation bracket (5) through limiting support members. A support opening (50) is provided on the outer wall of the front surface of the workstation bracket (5). The limiting support members include a transverse fixing rod (220) and a swing arm (221) installed on both sides of the workstation bracket (5). The two ends of the limiting roller (21) are horizontally connected to the lower ends of the swing arm (221) on both sides of the workstation bracket (5) through a connecting shaft (222). One end of the transverse fixing rod (220) is fixed in the support opening (50), and the other end of the transverse fixing rod (220) is sleeved in the upper end of the swing arm (221) through a bearing (223). A buffer tension spring (224) is provided between the swing arm (221) and the side wall of the workstation bracket (5). The blind cutting process includes the following steps: Select a ring-shaped blind cutter (18) on the magnetic shaft (17) that is the same size as the RFID tag, attach a colored reflective sticker (19) to the positioning mark hole (7) on the magnetic shaft (17), and install the magnetic shaft (17) on the workstation bracket (5). The controller controls the linear movement cylinder (20) to move on the crossbar (2), causing the color sensor (4) to scan the reflective sticker (19) inside the positioning mark hole (7) of the magnetic shaft (17) to obtain the reflective signal, and positioning the color sensor on the crossbar (2) to wait for the magnetic shaft (17) to enter the RFID tag cutting state. During the rotation of the magnetic shaft (17), the color sensor (4) continuously acquires the reflection signal of the reflective sticker (19) inside the positioning mark hole (7), and controls the output of the transfer signal to the magnetic shaft (17) based on the reflection signal, so that the intermediate layer material of the RFID tag is transferred in the annular blind cutter (18), so that the annular blind cutter (18) on the magnetic shaft (17) and the transfer position of the intermediate layer material of the RFID tag are in a one-to-one correspondence.

2. The blind cutting process of the RFID tag blind cutting device according to claim 1, characterized in that: The feed side of the extrusion roller (10) is provided with a support frame (11). The support frame (11) and the work station bracket (5) are provided with mounting holes (16) at corresponding positions on their surfaces, and mounting bolts (15) are provided on the inner side of the mounting holes (16).

3. The blind cutting process of the RFID tag blind cutting device according to claim 1, characterized in that: A colored reflective sticker (19) is provided in the positioning mark hole (7). The color sensor (4) is slidably mounted on the crossbar (2). A linear movement cylinder (20) is provided on the crossbar (2), and the color sensor (4) is installed on the linear movement cylinder (20).

4. The blind cutting process of the RFID tag blind cutting device according to claim 2, characterized in that: A shaft (13) is provided between the support frame (11), and a guide roller (14) is rotatably sleeved on the surface of the shaft (13).

5. The blind cutting process of the RFID tag blind cutting device according to claim 1, characterized in that: The positioning marking holes (7) are arranged at equal intervals around the surface of the magnetic shaft (17) on one side of the annular blind cutter (18), and the inner wall of the mounting hole (16) and the surface of the mounting bolt (15) are both provided with threads.

6. The blind cutting process of the RFID tag blind cutting device according to claim 1, characterized in that: A control button (3) is provided on one side surface of the workstation bracket (5), and the output end of the control button (3) is electrically connected to the input end of the controller (1) and the color sensor (4) through a wire.

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