Punching mechanism

Abstract

The application discloses a press hammer punching mechanism and relates to the technical field of chip punching. The press hammer punching mechanism comprises a conveying assembly, a press hole wheel assembly, a press roller and a driving assembly. The conveying assembly is used for conveying label roll paper along a first path. The label roll paper has a plurality of chip labels. The chip labels include qualified labels and unqualified labels. The chip labels on different types of label roll paper have different jump distances. The press hole wheel assembly comprises a plurality of gear modules. Different gear modules have different gear numbers. The greater the gear number of a gear module, the smaller the jump distance of the corresponding adapted chip label. The press roller is arranged on the first path, and the label roll paper passes the outer periphery of the press roller. The driving assembly is used for driving connection with any gear module. The driving assembly is used for driving the gear module to rotate, so that the gear tip of the gear module moves to press against the unqualified label passing the press roller, thereby enabling the gear tip of the gear module to press hammer and punch the chip on the unqualified label.

Description

Technical Field

[0001] This invention relates to the field of chip punching technology, and in particular to a hammer punching mechanism. Background Technology

[0002] Radio frequency identification (RFID) chip fabrication equipment is a key technology for achieving efficient production of smart tags. With the rapid development of IoT applications, RFID tags are constantly evolving in terms of production scale, packaging form, and material adaptability. Their fabrication process has shifted from early semi-automatic single-station operations to fully automated roll-to-roll production systems.

[0003] Currently, in the RFID tag manufacturing process, mechanical punching and cutting mechanisms or hammering mechanisms are commonly used to identify and remove non-conforming (Not Good, NG) tags. These mechanisms typically use pressure rollers, which are driven by air pressure or servo to punch and cut NG tags, removing the chip and creating a clear mark on the tag.

[0004] However, current punching and cutting mechanisms and hammering mechanisms have significant limitations. A single punching and cutting mechanism or hammering mechanism can usually only adapt to one label spacing. However, in actual production, the spacing of chip labels on different label rolls may vary. This makes it difficult for current punching and cutting mechanisms and hammering mechanisms to meet the label marking and rejection needs with a wide range of spacing. Summary of the Invention

[0005] The main objective of this invention is to propose a hammer punching mechanism, which aims to solve the problem that current punching and hammering mechanisms are unable to meet the label marking and rejection requirements with a large jump range.

[0006] To achieve the above objectives, the present invention proposes a hammer punching mechanism comprising a conveying assembly, a punching wheel assembly, a pressure roller, and a driving assembly. The conveying assembly is used to convey label rolls along a first path. The label rolls have multiple chip labels, including qualified and unqualified labels, and the chip labels on different types of label rolls have different jump distances. The punching wheel assembly includes various gear modules, each with a different number of teeth; gear modules with a larger number of teeth correspond to smaller jump distances for the chip labels. The pressure roller is positioned on the first path, and the label roll passes over its outer circumference. The driving assembly is used to drive the gear modules to rotate, causing the tips of the gear modules to move to press against the unqualified labels passing over the pressure roller, thereby causing the tips of the gear modules to punch the chips on the unqualified labels.

[0007] In one embodiment, the gear module includes a three-tooth gear, a four-tooth gear, a five-tooth gear, a six-tooth gear, and an eight-tooth gear; the three-tooth gear has uniformly distributed tooth edges made of tungsten steel, and the tooth roots of the three-tooth gear integrate micro heat pipes; and / or, the four-tooth gear has uniformly distributed tooth edges made of tungsten steel, and the tooth roots of the four-tooth gear integrate micro heat pipes; and / or, the five-tooth gear is made of titanium alloy, and the tooth teeth of the five-tooth gear have tooth tip protrusions in the middle, the tooth tip protruding beyond the tooth tip circle; and / or, the six-tooth gear is made of ceramic matrix composite material; and / or, the eight-tooth gear is made of ceramic matrix composite material; and / or, the inter-tooth area of ​​the eight-tooth gear integrates an electronic probe for detecting deformation.

[0008] In one embodiment, the pressure roller is provided with an array of holes facing the label roll; the pressure roller has a cavity inside, and each hole in the array of holes is connected to the cavity. The cavity is conical in shape, and the diameter of the cavity facing the array of holes is larger than the diameter of the cavity facing away from the array of holes. The pressure hammer punching mechanism also includes a vacuum component, and the end of the cavity facing away from the array of holes is connected to the vacuum component. The vacuum component is used to create a negative pressure in the cavity.

[0009] In one embodiment, the punching mechanism further includes a frame, with both ends of the pressure roller rotatably connected to the frame; the drive assembly includes a servo motor and a transmission roller, the servo motor is mounted on the frame and is connected to the transmission roller and the pressure roller respectively; the outer periphery of the transmission roller is provided with a positioning protrusion, and a gear module is sleeved on the transmission roller and cooperates with the positioning protrusion.

[0010] In one embodiment, a first pressure plate is detachably provided on the frame. The first pressure plate rigidly abuts against the top of both sides of the transmission roller and constrains the degree of freedom of movement of the transmission roller. The pressure roller is located below the gear module.

[0011] In one embodiment, the drive assembly further includes two connecting blocks and two cylinders; the two cylinders are respectively disposed on both sides of the frame; the drive parts of the two cylinders are respectively connected to the two connecting blocks; the connecting blocks are provided with through holes, and the two ends of the transmission roller pass through the through holes of the two connecting blocks respectively; the two cylinders are used to drive the connecting blocks to move toward the pressure roller, so as to drive the gear module located on the transmission roller to move toward the pressure roller and press against the defective label; a leveling structure is provided between the cylinder and the frame, the leveling structure is used to adjust the height of the cylinder, so as to adjust the height of both sides of the transmission roller, thereby making the axis of the transmission roller parallel to the axis of the pressure roller.

[0012] In one embodiment, the drive assembly further includes a second pressure plate. The drive parts of the two cylinders are respectively connected to the two ends of the same side of the second pressure plate. The tops of the two connecting blocks are respectively connected to the two ends of the other side of the second pressure plate. The bottom of the connecting blocks is provided with a vertically arranged spring, and the bottom of the connecting blocks is elastically connected to the frame through the spring. The hammer punching mechanism further includes a hammer height adjustment assembly, which includes an adjustment knob and a strain sensor. The upper surface of the adjustment knob is provided with a scale, and the bottom of the adjustment knob is provided with a screw. A threaded through hole is opened on the top plate of the frame. The screw is screwed into the threaded through hole and passes through the threaded through hole and presses against the second pressure plate. The adjustment knob is used to adjust the height of the second pressure plate, thereby adjusting the height of the gear module. The strain sensor is set on the pressure roller and is used to monitor the pressure on the chip label.

[0013] In one embodiment, the pressure hammer punching mechanism further includes a vision inspection component and a control module. The vision inspection component, the conveying component, and the driving component are all communicatively connected to the control module. The vision inspection component is disposed upstream of the pressure roller along the first path and faces the label roll. The vision inspection component is used to detect the conveying speed of the label roll. The control module is used to calculate the pressure compensation value based on the conveying speed of the label roll, the thickness of the chip label substrate, and the material coefficient of the substrate using the pressure compensation formula.

[0014] The pressure compensation formula is as follows:

[0015] P = 0.55×T + 0.15×V + 0.3×M

[0016] Where P is the pressure, T is the thickness of the chip tag substrate, V is the conveying speed of the tag roll, and M is the material coefficient of the substrate, with a value ranging from 0.8 to 1.5.

[0017] In one embodiment, the pressure hammer punching mechanism further includes a vision detection component and a control module. The vision detection component, the conveying component, and the driving component are all communicatively connected to the control module. The vision detection component is positioned upstream of the pressure roller along a first path and faces the label roll. The vision detection component is used to photograph the chip label on the label roll and identify the edge features of defective labels. After detecting that the vision detection component has photographed a defective label, the control module is used to adjust the speed of the conveying component, the rotational speed of the driving component, and the pressing time based on a defective label timing control algorithm, so that the defective labels passing over the pressure roller are punched by the tooth tip pressure hammer of the gear module.

[0018] In one embodiment, the formula for the non-conforming tag timing control algorithm is as follows:

[0019] T_trigger = L / (V×k) + t_delay

[0020] Where T_trigger is the hammer trigger time;

[0021] L is the physical distance from the visual inspection component to the pressure point of the gear module;

[0022] V is the linear speed of the label roll conveyor;

[0023] t_delay is the system delay compensation;

[0024] k is the dynamic slip coefficient, ranging from 0.92 to 1.08. The dynamic slip coefficient k adopts a speed segment compensation strategy.

[0025] When the linear speed V of the label roll conveyor is ≤30m / min, k=1.0;

[0026] When the linear speed of the label roll conveyor V∈(30,45]m / min, k=0.98±0.02;

[0027] When the linear speed V of the label roll conveyor is greater than 45 m / min, k = 0.95 ± 0.03.

[0028] The technical solution of this invention employs a hammer punching mechanism. Specifically, it uses a conveying component to transport the label roll, allowing it to move along a first path. Then, a pressure roller provides support as the label roll passes through it, enabling the gear module to effectively punch out defective labels. A perforating wheel assembly, comprising various gear modules with different numbers of teeth (a larger number of teeth corresponds to a smaller jump distance for the chip label), allows the hammer punching mechanism to adapt to label rolls with different jump distances by selecting and replacing appropriate gear modules. Furthermore, a drive component is connected to any gear module, driving the gear module to rotate so that the tooth tips move at a corresponding moment to press against the defective label passing through the pressure roller, thus achieving hammer punching of the defective label. Since the gear module works by rotating to press the tips of the teeth against the defective labels and make a punch, at the same rotation speed and diameter, the more teeth the gear module has, the smaller the tooth pitch between adjacent teeth. After each punching action, the time required for the next tooth to rotate to the punching position of the previous tooth is also shorter. At a constant conveying speed, the conveying distance of the label roll is also shorter during this time period, thus enabling the punching of defective labels with small jump distances. Therefore, the gear module with a larger number of teeth can adapt to the smaller jump distance of the chip labels. Based on the compatibility between the number of teeth in the gear module and the label jump distance, by replacing different types of gear modules and adjusting the rotational speed of the drive component and the conveying speed of the transmission component accordingly, the punching action of the gear tips can adapt to a wide range of chip label jump distances, thus meeting the punching requirements for chip labels with different jump distances. This effectively solves the problem that current punching or hammering mechanisms can only adapt to a single jump distance, enabling this hammer punching mechanism to flexibly handle label marking and rejection requirements with a large jump distance range, significantly improving the equipment's versatility and production adaptability. Furthermore, through the design of multiple gear modules, operators can adapt to different production tasks by changing the gear modules, eliminating the need to invest in multiple dedicated machines, reducing equipment costs and maintenance complexity, and decreasing production line adjustment time, thereby improving overall production efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of an embodiment of the pressure hammer punching mechanism provided by the present invention;

[0031] Figure 2 This is another structural schematic diagram of an embodiment of the pressure hammer punching mechanism provided by the present invention;

[0032] Figure 3 A schematic diagram of the punching wheel assembly and the punching roller of an embodiment of the punching mechanism provided by the present invention;

[0033] Figure 4 A schematic diagram of a defective label being punched out according to an embodiment of the pressure hammer punching mechanism provided by the present invention;

[0034] Figure 5 This is a schematic diagram of the gear module structure of an embodiment of the hammer punching mechanism provided by the present invention.

[0035] Explanation of icon numbers:

[0036] 1. Transmission component;

[0037] 2. Pressing wheel assembly; 21. Gear module; 211. Three-tooth gear; 212. Four-tooth gear; 213. Five-tooth gear; 214. Six-tooth gear; 215. Eight-tooth gear;

[0038] 3. Pressure roller;

[0039] 4. Drive assembly; 41. Servo motor; 42. Transmission roller; 43. Connecting block; 431. Spring; 44. Cylinder; 45. Leveling structure; 46. Second pressure plate;

[0040] 5. Rack;

[0041] 6. Pressure hammer height adjustment assembly; 61. Adjustment knob;

[0042] 7. Visual inspection component.

[0043] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0045] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0046] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0047] Radio frequency identification (RFID) chip fabrication equipment is a key technology for achieving efficient production of smart tags. With the rapid development of IoT applications, RFID tags are constantly evolving in terms of production scale, packaging form, and material adaptability. Their fabrication process has shifted from early semi-automatic single-station operations to fully automated roll-to-roll production systems.

[0048] Currently, in the RFID tag manufacturing process, mechanical punching and cutting mechanisms or hammering mechanisms are commonly used to identify and remove non-conforming (Not Good, NG) tags. These mechanisms typically use pressure rollers, which are driven by air pressure or servo to punch and cut NG tags, removing the chip and creating a clear mark on the tag.

[0049] However, current punching and cutting mechanisms and hammering mechanisms have significant limitations. A single punching and cutting mechanism or hammering mechanism can usually only adapt to one label spacing. However, in actual production, the spacing of chip labels on different label rolls may vary. This makes it difficult for current punching and cutting mechanisms and hammering mechanisms to meet the label marking and rejection needs with a wide range of spacing.

[0050] To address the aforementioned problems, this invention proposes a hammer punching mechanism.

[0051] Please see Figure 1 and Figure 2In one embodiment of the present invention, the pressure hammer punching mechanism includes a conveying component 1, a pressing wheel assembly 2, a pressure roller 3, and a driving component 4. The conveying component 1 is used to convey label rolls along a first path. The label rolls have multiple chip labels, including qualified labels and unqualified labels. The chip labels on different types of label rolls have different jump distances. The pressing wheel assembly 2 includes multiple gear modules 21. Different gear modules 21 have different numbers of teeth. The gear module 21 with a larger number of teeth corresponds to a smaller jump distance for the chip label. The pressure roller 3 is disposed on the first path, and the label roll passes through the outer periphery of the pressure roller 3. The driving component 4 is used to drive the gear module 21 to rotate, so that the tips of the gear modules 21 move to press against the unqualified label passing through the pressure roller 3, thereby causing the tips of the gear modules 21 to punch the chip on the unqualified label.

[0052] It should be noted that the jump distance refers to the distance between adjacent products. In this embodiment, the jump distance of the chip label specifically refers to the distance between two adjacent chip labels on the label roll.

[0053] like Figure 3 As shown, Figure 3 In section (a), the gear module 21 is not in position; at this point, the gear module 21 is not in contact with the chip tag. Figure 3 In section (b), the gear module 21 has rotated into position and is aligned with the pressure roller 3. At this point, the gear module 21 presses against the chip label, forming a punch. It should be noted that the chip label typically includes a chip layer and various substrate layers. The chip layer is laminated onto the substrate layers, and the chip layer usually contains chips and coils bonded to each other; for example... Figure 4 As shown, Figure 4 (a) shows the original state of the non-compliant label. Figure 4 In section (b), after the gear module 21 and the pressure roller 3 are aligned, the defective label is punched. At this time, the bonding part between the chip and the coil on the chip layer is initially punched (the box in the middle of the figure is the punched part). Figure 4 In section (c), the defective label has been punched out. At this point, the bonding area between the chip and the coil on the chip layer has been punched out, and the substrate layers of the defective label have also been punched out, resulting in encapsulation failure and a clear mark on the defective label.

[0054] The technical solution of this invention employs a hammer punching mechanism. Specifically, it uses a conveying component 1 to convey the label roll, allowing the label roll to move along a first path. Then, it uses a pressure roller 3, which provides support as the label roll passes through the pressure roller 3, enabling the gear module 21 to effectively punch the defective labels passing through the pressure roller 3. It also employs a perforating wheel assembly 2, which includes various gear modules 21 with different numbers of teeth. The gear module 21 with a larger number of teeth corresponds to a smaller jump distance for the chip label, allowing the hammer punching mechanism to adapt to label rolls with different jump distances by selecting and replacing suitable gear modules 21. Furthermore, a driving component 4 is used for transmission connection with any of the gear modules 21. The driving component 4 can drive the gear module 21 to rotate, causing the tooth tips of the gear module 21 to move at a corresponding moment to press against the defective label passing through the pressure roller 3, thereby achieving hammer punching of the defective label. Since the gear module 21 punches out defective labels by rotating its teeth, the more teeth the gear module 21 has, the smaller the tooth pitch between adjacent teeth on the gear module 21. After each punching action, the time required for the next tooth to rotate to the punching position of the previous tooth is also shorter. Under constant conveying speed, the conveying distance of the label roll is also shorter during this time period, thus enabling the punching of defective labels with small jump distances. Therefore, the gear module 21 with a larger number of teeth can adapt to the smaller jump distance of chip labels. Based on the compatibility between the number of teeth in gear module 21 and the label jump distance, by replacing different types of gear modules 21 and correspondingly adjusting the rotational speed of drive component 4 and the conveying speed of conveying component 1, the punching action of the tooth tip can be adapted to a wide range of chip label jump distances, thus meeting the punching requirements for chip labels with different jump distances. This effectively solves the problem that current punching or hammering mechanisms can only adapt to a single jump distance, enabling this hammer punching mechanism to flexibly handle label marking and rejection requirements with a large jump distance range, significantly improving the equipment's versatility and production adaptability. Furthermore, through the design of multiple gear modules 21, operators can adapt to different production tasks by changing the gear modules 21, eliminating the need to invest in multiple dedicated machines, reducing equipment costs and maintenance complexity, and decreasing production line adjustment time, thereby improving overall production efficiency.

[0055] The pressure hammer punching mechanism only needs to punch the unqualified labels. Therefore, by controlling the rotation speed of the drive component 4 and the transmission speed of the transmission component 1, the tooth tip of the gear module 21 can be staggered from the qualified chip, avoiding the gear module 21 pressing against the qualified chip and ensuring that only the unqualified labels are punched.

[0056] Additionally, it should be noted that gear modules 21 with a larger number of teeth have smaller corresponding chip tag pitches, and vice versa. For example, gear modules 21 with 3 and 8 teeth have different pitches. When gear module 21 has 3 teeth, the corresponding chip tag pitch can be 12-15mm. By adjusting the rotational speed of the drive assembly 4, the pitch of the corresponding chip tag can be extended to 200mm. When gear module 21 has 8 teeth, the corresponding chip tag pitch can be 2-3mm. By adjusting the rotational speed of the drive assembly 4, the pitch of the corresponding chip tag can be extended to 20-30mm, thus achieving a corresponding expansion of the pitch.

[0057] Furthermore, it should be noted that even if the speed of the conveying component 1 and the gear rotation / cutting speed in the current punching and cutting mechanism or hammer mechanism are adjusted, it is difficult to achieve the same effect as the solution in this embodiment, which balances adaptation to a large range of jump distances and high-speed cutting operations. This is because the current punching and cutting mechanism or hammer mechanism usually uses a single type of fixed-tooth gear for cutting. To achieve adaptation to a large range of jump distances for chip labels, not only do the conveying component 1 and the driving component 4 need to have a large speed adjustment range, which places high demands on the performance of the conveying component 1 and the driving component 4, but in the case of small jump distances, it is necessary to ensure high-speed rotation of the gears and slow conveying of the label roll to achieve jump distance adaptation. This, in turn, restricts the cutting speed and leads to a reduction in cutting efficiency. The solution in this embodiment, by using gear modules 21 with different numbers of teeth, can adapt to a wide range of chip jump distances by slightly adjusting the gear speed and the conveying speed of the label roll. Therefore, this solution has lower performance requirements for the conveying component 1 and the driving component 4. Furthermore, by selecting and installing gear modules 21 with a large number of teeth, high-speed punching operations can be ensured in scenarios with small label jump distances, thereby enabling this hammer punching mechanism to operate at a speed of 60m / min, increasing the production capacity by 50% compared to the traditional punching mechanism's 40m / min.

[0058] In one optional implementation, the conveying component 1 may include a driving component and multiple rotating rollers. The driving component may be configured as a servo motor or other driving device. The driving component is connected to the multiple rotating rollers for transmission. The label roll passes through the outer periphery of the multiple rotating rollers in sequence, thereby realizing the conveying and transportation of the label roll.

[0059] Furthermore, the drive assembly 4 can be connected to the gear module 21 via a transmission structure such as a gear set in the drive unit (such as a drive rod), which will not be described in detail here.

[0060] In one embodiment, the outer periphery of the pressure roller 3 may be provided with a ceramic coating. The pressure roller 3 with a ceramic coating can increase the friction between it and the bottom surface of the label roll, thereby avoiding problems such as slippage of the label roll when passing through the pressure roller 3, and ensuring that the label roll can be effectively pulled.

[0061] Please see Figure 1 and Figure 5 In an embodiment of the present invention, the gear module 21 includes a three-tooth gear 211, a four-tooth gear 212, a five-tooth gear 213, a six-tooth gear 214, and an eight-tooth gear 215; the three-tooth gear 211 has uniformly distributed tooth edges made of tungsten steel, and a micro heat pipe is integrated at the tooth root of the three-tooth gear 211; and / or, the four-tooth gear 212 has uniformly distributed tooth edges made of tungsten steel, and a micro heat pipe is integrated at the tooth root of the four-tooth gear 212; and / or, the five-tooth gear 213 is made of titanium alloy, and a tooth tip protrusion is provided in the middle of the tooth of the five-tooth gear 213, the tooth tip protruding beyond the tooth tip circle; and / or, the six-tooth gear 214 is made of ceramic matrix composite material; and / or, the eight-tooth gear 215 is made of ceramic matrix composite material; and / or, an electronic probe is integrated between the teeth of the eight-tooth gear 215, the electronic probe being used to detect deformation.

[0062] In this embodiment, various gear modules 21 are provided, including three-tooth, four-tooth, five-tooth, six-tooth, and eight-tooth gears 215. Among them, the three-tooth gear 211 is adapted to chip labels with long pitch, such as chip labels with a pitch of 12~15mm. Such chip labels usually have a thicker substrate and are commonly found in chip labels of automotive electronic devices. Therefore, the three-tooth gear 211 in this embodiment has uniformly distributed tooth edges, and the tooth edges are made of tungsten steel, thereby ensuring the load-bearing capacity of the tooth edges, so that a single tooth can withstand an impact force of 400N or more, which is particularly suitable for punching high-toughness materials. In addition, the tooth root of the three-tooth gear 211 integrates a micro heat pipe. The micro heat pipe can start cooling and cooling down after the substrate of the chip label exceeds a certain temperature (such as 150°C), thereby avoiding deformation or performance degradation of the three-tooth gear 211 due to excessive temperature rise during continuous operation. It should be noted that a micro heat pipe is a phase change heat transfer device with a hydraulic radius greater than or equal to the capillary radius of the working fluid. Micro heat pipes can achieve efficient heat transfer through the evaporation and condensation cycle of the working fluid.

[0063] The four-tooth gear 212 has a similar overall configuration to the three-tooth gear 211. It is used to adapt to chip tags with medium to long jump distances, such as chip tags with jump distances of 8~12mm, thereby forming a supplementary adaptation for chip tag jump distances that are difficult to cover between the three-tooth gear 211 and the five-tooth gear 213.

[0064] The five-tooth gear 213 is designed for use with medium-pitch chip labels, such as those with a 6-8mm pitch. This pitch is common for mass-produced consumer electronics chip labels, making the five-tooth gear 213 particularly suitable for punching out defective labels in mass-produced consumer electronics chip labels. The five-tooth gear 213 is made of titanium alloy, significantly reducing its weight compared to other gears to enable emergency stop control at 15 gravitational accelerations. Additionally, the five-tooth gear 213 features tooth tip protrusions in the center of its teeth. The tooth tip circle of the five-tooth gear 213 ensures that each time it rotates to the expected position to punch the defective label, the tooth tip protrusion contacts the defective label first. This achieves pre-positioning and pre-application of pressure on the defective label, guaranteeing sufficient contact and pressure between the teeth of the five-tooth gear 213 and the defective label, ensuring the punching effect on the chip. Furthermore, ensuring that the tooth tip protrusion contacts the defective label first reduces friction on other parts of the teeth of the five-tooth gear 213, thus ensuring the wear resistance of other parts of the teeth. As an optional implementation, the tooth tip protrusion can be set to extend 0.05mm beyond the tooth tip circle. This ensures that the tooth tip protrusion contacts the defective label first, while preventing the tooth tip protrusion from being too large, which would prevent other parts of the teeth from effectively pressing and punching the defective label.

[0065] The eight-tooth gear 215 can accommodate chip labels with minute pitches, such as 2-3 mm pitches, commonly found in medical microdevice labels. Therefore, the eight-tooth gear 215 can effectively punch out these defective labels. Furthermore, the eight-tooth gear 215 is made of ceramic matrix composite material, ensuring its hardness and reducing wear during punching. Additionally, the tooth tips of the eight-tooth gear 215 can integrate an electron probe to detect minute deformations, such as deformation data at the 0.3 nm level, enabling precise control of the deformation and positioning accuracy of the eight-tooth gear 215. As an optional implementation, the ceramic matrix composite material can be made of a zirconia matrix and a nanodiamond coating.

[0066] The overall configuration of the six-tooth gear 214 is similar to that of the eight-tooth gear 215. It is used to adapt to chip tags with small to medium jump distances, such as chip tags with jump distances of 3 to 6 mm, thereby forming a supplementary adaptation to the chip tag jump distances that are difficult to cover between the five-tooth gear 213 and the eight-tooth gear 215.

[0067] By employing gears with three, four, five, six, and eight teeth, and by changing the gear module 21 with different tooth counts, a single pressure hammer punching mechanism can adapt to the chip tag skip distances in multiple fields such as consumer electronics, automotive electronics, and medical devices. Compared to traditional multi-model solutions, this can save 60% of equipment investment costs. Furthermore, with the adjustment of the rotational speed and conveyor speed of the gear module 21 by the drive component 4, it can ultimately achieve punching adaptation for chip tags with skip distances ranging from 2 to 200 mm. In addition, since each gear module 21 with different tooth counts is pre-calibrated to a precision within ±0.01 mm, simply replacing the gear module 21 with one of different tooth counts and installing it in place will achieve good installation accuracy, eliminating the need for complex debugging and conversion operations. This allows for immediate production upon replacement, significantly improving production efficiency.

[0068] In an embodiment of the present invention, the pressure roller 3 is provided with a hole array (not shown in the figure), which is oriented toward the label roll paper; a cavity (not shown in the figure) is opened inside the pressure roller 3, and each hole in the hole array is connected to the cavity. The cavity is conical in shape, and the diameter of the cavity facing the hole array is larger than the diameter of the cavity facing away from the hole array; the pressure hammer punching mechanism also includes a vacuum component (not shown in the figure), and the end of the cavity facing away from the hole array is connected to the vacuum component. The vacuum component is used to create a negative pressure in the cavity.

[0069] In this embodiment, by setting an array of holes facing the label roll on the pressure roller 3, the negative pressure adsorption force can be distributed in multiple places on the pressure roller 3. When the gear module 21 punches the defective label, the vacuum component can be activated simultaneously and generate a negative pressure adsorption effect, so that the chips, debris and other materials punched out of the defective label can be adsorbed into the hole array and enter the cavity, effectively preventing the chips, debris and other materials from escaping everywhere. Then, the conical cavity opened inside the pressure roller 3, through its structural design, has a large port diameter facing the hole array, which helps to expand the adsorption area, and a small port diameter connecting to the vacuum component, which helps to increase the airflow speed, thereby forming a stable and efficient negative pressure environment in the cavity. In addition, the connection between the vacuum component and the small port diameter end of the cavity ensures that the required negative pressure intensity can be quickly established and maintained, which not only enhances the adsorption effect of chips, debris and other materials, but also achieves effective collection of waste materials, preventing debris accumulation from affecting the punching quality or causing equipment pollution. The structure of the conical cavity also helps to guide the concentrated flow of airflow, reduce energy loss and improve the debris removal efficiency.

[0070] In one optional implementation, the vacuum assembly may include a vacuum pump, a solenoid valve, and a piezoresistive sensor. The end of the cavity facing away from the pore array is sequentially connected to the solenoid valve, the piezoresistive sensor, and the vacuum pump. The vacuum pump provides negative pressure adsorption power, the solenoid valve's rapid response controls the start and stop of the negative pressure adsorption, and the piezoresistive sensor monitors the negative pressure adsorption force to adjust it to a suitable range. Furthermore, the distance between the solenoid valve and the pore array can be set to less than or equal to 200 mm, effectively shortening the airflow delay. This allows the airflow to be quickly drawn in after the solenoid valve is opened, rapidly creating a negative pressure field near the pore array for timely adsorption of chips and debris. Additionally, the pore array can be arranged in a honeycomb pattern. The pore diameter can be set to 0.5 mm ± 0.02 mm, and the spacing between adjacent pores can be set to 2.0 mm ± 0.1 mm. These options can be selected according to actual needs and are not limited here.

[0071] Please see Figure 1 In an embodiment of the present invention, the punching mechanism further includes a frame 5, and the two ends of the pressure roller 3 are rotatably connected to the frame 5; the drive assembly 4 includes a servo motor 41 and a transmission roller 42, the servo motor 41 is mounted on the frame 5, and the servo motor 41 is connected to the transmission roller 42 and the pressure roller 3 respectively; the outer periphery of the transmission roller 42 is provided with a positioning protrusion, and the gear module 21 is sleeved on the transmission roller 42 and cooperates with the positioning protrusion.

[0072] In this embodiment, by setting up the frame 5 and providing rotating connections at both ends of the pressure roller 3, a stable support foundation is provided for the entire hammer punching mechanism, ensuring the structural rigidity and motion accuracy of the pressure roller 3 during high-speed operation. Furthermore, by using a servo motor 41 to drive the drive assembly 4 to connect to both the transmission roller 42 and the pressure roller 3, independent and precise control of the rotational speeds of the transmission roller 42 and the pressure roller 3 is achieved. This allows for adjustment of the punching rhythm and label conveying speed matching according to the number of teeth in different gear modules 21 and the label jump distance requirements, improving the synchronization and accuracy of the punching action. Additionally, By fitting the positioning protrusions on the outer periphery of the transmission roller 42 with the gear module 21, the circumferential and axial positioning accuracy of the gear module 21 on the transmission roller 42 is ensured, preventing the gear module 21 from shifting or sliding during high-speed rotation. This ensures that the tooth tips of the gear module 21 used for punching can accurately align with the chip position of the defective label. At the same time, this fitting design makes the replacement operation of the gear module 21 more convenient. Operators can quickly switch between gear modules 21 with different numbers of teeth through simple assembly, improving the flexibility and production efficiency of the equipment to adapt to different production tasks.

[0073] In an embodiment of the present invention, a first pressure plate (not shown in the figure) is detachably provided on the frame 5. The first pressure plate rigidly abuts against the top of both sides of the transmission roller 42 and constrains the degree of freedom of movement of the transmission roller 42. The pressure roller 3 is located below the gear module 21.

[0074] In this embodiment, by detachably mounting a first pressure plate on the frame 5 and rigidly abutting against the top sides of the transmission roller 42, the axial movement freedom of the transmission roller 42 is effectively constrained, preventing radial movement of the transmission roller 42 during operation. This ensures the stability of the relative position between the gear module 21 and the transmission roller 42, allowing the gear module 21 on the transmission roller 42 to be reliably supported. This enables reliable pressure and punching of defective labels on the pressure roller 3, effectively reducing the upward springback of the gear module 21 due to the reaction force during punching. Thus, the gear module 21 can also effectively press against chip labels using flexible substrates, allowing the chip on defective labels using flexible substrates to be effectively punched off, thereby improving the punching reliability of flexible chip labels. Furthermore, the detachable design of the first pressure plate allows operators to quickly disassemble and install it when replacing or maintaining the transmission roller 42, improving the maintainability and ease of operation of the equipment. Meanwhile, the rigid contact structure of the first pressure plate can also enhance the vibration resistance of the transmission roller 42 when it is running at high speed, further ensuring the accuracy and consistency of the punching action and reducing the punching error caused by the displacement of the transmission roller 42.

[0075] The first pressure plate can be made of stainless steel to ensure its structural strength. The first pressure plate can also be mirror polished to make its surface roughness Ra≤0.2μm, so that the first pressure plate can form a reliable rigid contact with the top of both sides of the transmission roller 42 and form an effective constraint.

[0076] Please see Figure 1 In an embodiment of the present invention, the drive assembly 4 further includes two connecting blocks 43 and two cylinders 44; the two cylinders 44 are respectively disposed on both sides of the frame 5; the drive parts of the two cylinders 44 are respectively connected to the two connecting blocks 43; the connecting blocks 43 are provided with through holes, and the two ends of the transmission roller 42 are respectively inserted through the through holes of the two connecting blocks 43; the two cylinders 44 are used to drive the connecting blocks 43 to move toward the pressure roller 3, so as to drive the gear module 21 located on the transmission roller 42 to move toward the pressure roller 3 and press against the defective label; a leveling structure 45 is provided between the cylinders 44 and the frame 5, the leveling structure 45 is used to adjust the height of the cylinders 44, so as to adjust the height of both sides of the transmission roller 42, thereby making the axis of the transmission roller 42 parallel to the axis of the pressure roller 3.

[0077] In this embodiment, by setting two cylinders 44 on both sides of the frame 5 respectively, and connecting the driving parts of the cylinders 44 to two connecting blocks 43 respectively, and having both ends of the transmission roller 42 pass through the through holes of the two connecting blocks 43 respectively, the two cylinders 44 can provide a stable and controllable driving force to both sides of the transmission roller 42, so that the gear module 21 located on the transmission roller 42 can move toward the pressure roller 3, ensuring that the gear module 21 can accurately press the unqualified label with constant pressure, so that the gear module 21 can effectively punch most chip labels made of non-flexible substrates, such as metal shielded RFID tags, high-frequency hard electronic passport inlays, and anti-metal ceramic substrate tags. Furthermore, by setting a leveling structure 45 between the cylinder 44 and the frame 5, the height of the cylinders 44 on both sides can be precisely adjusted through the leveling structure 45, thereby ensuring the parallelism between the axis of the transmission roller 42 and the axis of the pressure roller 3. This avoids the problem of uneven distribution of punching pressure on unqualified chips or uneven wear of the gear module 21 caused by non-parallel axes, significantly improving the consistency of punching quality. This leveling design can also adapt to the production needs of label rolls of different thicknesses, further enhancing the process adaptability of the equipment. Overall, this embodiment ensures the accuracy and stability of the punching process through the cooperation of the cylinder 44, connecting block 43, transmission roller 42, and leveling structure 45.

[0078] In one optional implementation, the leveling structure 45 may include a leveling knob, a spring, a first nut, and a second nut. The leveling knob may have a rotating part and a screw connected to each other. The connecting end of the cylinder 44 and the frame 5 may be provided with corresponding through holes. The bottom of the spring abuts against the frame 5, and the top of the spring abuts against the connecting end of the cylinder 44. The screw of the leveling knob passes through the through hole of the cylinder 44, the spring, the first nut, the through hole on the frame 5, and the second nut in sequence. By adjusting the position of the leveling knob relative to the first nut and the second nut, the spring is compressed to different degrees, and the height of the cylinder 44 relative to the frame 5 is adjusted accordingly.

[0079] Please see Figure 1In an embodiment of the present invention, the drive assembly 4 further includes a second pressure plate 46. The drive parts of the two cylinders 44 are respectively connected to the two ends of the same side of the second pressure plate 46. The tops of the two connecting blocks 43 are respectively connected to the two ends of the other side of the second pressure plate 46. The bottom of the connecting block 43 is provided with a vertically arranged spring 431. The bottom of the connecting block 43 is elastically connected to the frame 5 through the spring 431. The hammer punching mechanism further includes a hammer height adjustment assembly 6. The hammer height adjustment assembly 6 includes an adjustment knob 61 and a strain sensor (not shown in the figure). The upper surface of the adjustment knob 61 is provided with a scale. The bottom of the adjustment knob 61 is provided with a screw. A threaded through hole is opened on the top plate of the frame 5. The screw is screwed into the threaded through hole. The screw passes through the threaded through hole and presses against the second pressure plate 46. The adjustment knob 61 is used to adjust the height of the second pressure plate 46, thereby adjusting the height of the gear module 21. The strain sensor is set on the pressure roller 3. The strain sensor is used to monitor the pressure on the chip label.

[0080] In this embodiment, by setting a second pressure plate 46 and connecting the driving parts of the two cylinders 44 to their two ends on the same side, and simultaneously connecting the tops of the two connecting blocks 43 to the two ends on the other side of the second pressure plate 46, a stable force transmission structure is formed. This ensures that the driving force of the cylinders 44 can be evenly distributed to both sides of the transmission roller 42, avoiding the problem of uneven load caused by uneven force on one side, thereby further improving the stability and consistency of the punching action of the gear module 21. In addition, the vertical spring 431 set at the bottom of the connecting block 43 forms an elastic connection with the frame 5, effectively absorbing the impact vibration generated during the punching process, reducing the noise and mechanical stress during equipment operation, and extending the service life of key components. At the same time, the elastic reset characteristic of the spring 431 ensures that the gear module 21 can quickly return to the initial position after punching, preparing for the next punching. In addition, by setting up a pressure hammer height adjustment component 6, the scale on the upper surface of the adjustment knob 61 provides an intuitive height adjustment reference. The screw at the bottom of the adjustment knob 61 cooperates with the threaded through hole on the top plate of the frame 5 to achieve fine adjustment of the height of the second pressure plate 46, thereby precisely controlling the punching depth of the gear module 21. This design allows the equipment to flexibly adapt to label rolls of different thicknesses and materials, significantly improving process adaptability. At the same time, the strain sensor set on the pressure roller 3 monitors the pressure on the chip label in real time, providing data feedback to the operator, which facilitates timely adjustment of the punching pressure by adjusting the knob 61, ensuring that unqualified labels are effectively punched without damaging qualified labels, thus improving the reliability and consistency of production quality.

[0081] Please see Figure 1 and Figure 2In an embodiment of the present invention, the pressure hammer punching mechanism further includes a vision inspection component 7 and a control module (not shown in the figure). The vision inspection component 7, the conveying component 1, and the driving component 4 are all communicatively connected to the control module. The vision inspection component 7 is disposed upstream of the pressure roller 3 along the first path and is positioned toward the label roll. The vision inspection component 7 is used to detect the conveying speed of the label roll. The control module is used to calculate the pressure compensation value based on the conveying speed of the label roll, the thickness of the chip label substrate, and the material coefficient of the substrate using the pressure compensation formula.

[0082] The pressure compensation formula is as follows:

[0083] P = 0.55×T + 0.15×V + 0.3×M

[0084] Where P is the pressure, T is the thickness of the chip tag substrate, V is the conveying speed of the tag roll, and M is the material coefficient of the substrate, with a value ranging from 0.8 to 1.5.

[0085] In this embodiment, by setting the visual inspection component 7 to be located upstream of the pressure roller 3 and facing the label roll along the first path, the conveying speed of the label roll can be detected in real time, providing key data input for precise control of the punching process. In addition, by establishing communication connections between the visual inspection component 7, the conveying component 1, and the driving component 4 and the control module, data integration and collaborative control of the entire system are realized, laying the foundation for intelligent adjustment of punching parameters.

[0086] In addition, the control module calculates the real-time pressure compensation value based on the transmission speed obtained by the vision detection component 7, combined with the substrate thickness and material coefficient of the chip label, through an innovative pressure compensation formula. The scientifically designed coefficients reflect the influence weight of each parameter on the punching pressure: the substrate thickness factor of 0.55 reflects the dominant influence of material thickness on punching resistance, the transmission speed factor of 0.15 reflects the inertial effect brought about by speed changes under dynamic production conditions, and the material coefficient factor of 0.3 quantifies the comprehensive influence of different material properties (such as hardness, toughness, etc.) on the punching process. The above coefficients are obtained through multiple tests by the test personnel. The pressure value calculated by this pressure compensation formula can be used to accurately guide the action parameters (such as rotational speed) of the drive component 4 on the gear module 21, so that the gear module 21 can apply a more suitable punching pressure to the defective label, so that the chip on the defective label can be effectively punched off without causing excessive damage to the defective label. This precise mathematical modeling enables the system to dynamically adjust the punching pressure according to actual production conditions, thus achieving consistent and reliable punching results for defective labels of different thicknesses, materials, and production speeds. This effectively solves the problem of unstable punching quality caused by changes in material properties or fluctuations in production speed. Overall, this embodiment significantly improves the equipment's adaptability to complex production conditions through a multi-parameter collaborative intelligent compensation mechanism, ensuring the stability and consistency of punching quality while reducing scrap rates and equipment wear caused by parameter mismatch.

[0087] For common material types, the following material coefficient table can be used to select the material coefficient M for the substrate:

[0088]

[0089] Please see Figure 1 and Figure 2 In an embodiment of the present invention, the pressure hammer punching mechanism further includes a vision detection component 7 and a control module (not shown in the figure). The vision detection component 7, the conveying component 1, and the driving component 4 are all communicatively connected to the control module. The vision detection component 7 is disposed upstream of the pressure roller 3 along the first path and is positioned facing the label roll. The vision detection component 7 is used to photograph the chip label on the label roll and identify the edge features of the defective label. After detecting that the vision detection component 7 has photographed a defective label, the control module is used to adjust the speed of the conveying component 1, the rotational speed of the driving component 4, and the pressing time based on the defective label timing control algorithm, so that the defective label passing through the pressure roller 3 is punched by the tooth tip of the gear module 21.

[0090] In this embodiment, by positioning the vision detection component 7 upstream of the pressure roller 3 along the first path and facing the label roll, it can capture images of the chip labels on the label roll in real time and accurately identify the edge features of defective labels, providing accurate visual data for subsequent punching positioning. Furthermore, by establishing communication connections between the vision detection component 7, the conveying component 1, and the driving component 4 and the control module, closed-loop coordinated control of the detection, conveying, and punching actions is achieved. Based on the defective label information identified by the vision detection component 7, the control module dynamically adjusts the conveying speed of the conveying component 1, the rotational speed of the driving component 4, and the pressing timing of the gear module 21 using a defective label timing control algorithm. This multi-parameter coordinated adjustment ensures that when a defective label passes the pressure roller 3, the tooth tip of the gear module 21 can accurately align with the label position and perform hammer punching at the optimal moment. This timing control algorithm effectively compensates for positioning errors caused by fluctuations in conveying speed or differences in label spacing by calculating the motion matching relationship between the label position and the hammer punching mechanism in real time, significantly improving the synchronization and accuracy of the punching action. Overall, this embodiment achieves accurate positioning and efficient removal of non-conforming labels by combining visual recognition with intelligent timing control, significantly improving the punching success rate and the stability of the equipment in adapting to high-speed production, while reducing the rate of false punching and missed punching.

[0091] The visual detection component 7 can pre-store object detection algorithms, enabling accurate identification of the edge features of defective labels after capturing images of chip labels on label rolls. The object detection algorithm can employ deep learning-based algorithms such as Mask R-CNN and YOLO, or traditional object detection methods like support vector machines; details will not be elaborated here. Taking YOLO as an example, a large number of images of defective labels are collected as a dataset, and the images containing defective labels are annotated. The processed images are then divided into training and testing sets for training and testing the YOLO model, allowing it to learn specific edge features in images of defective labels. Once the model is trained and deployed within the visual detection component 7, it can identify the captured images based on the learned feature patterns. When a feature pattern learned by the model appears in an image, it can identify that the image contains a defective label. The visual detection component 7 can include components such as a visual camera and a computing processing module (e.g., a CPU) to realize the corresponding functions of image capture and recognition processing.

[0092] Of course, the visual detection component 7 may also consist only of a visual camera. The target detection algorithm may be pre-stored on the control module instead of the visual detection component 7. After the visual detection component 7 transmits the captured image to the control module, the control module will recognize the image. The specific implementation methods of the target detection algorithm, the visual detection component 7, and the control module for target detection can be found in existing technologies and will not be elaborated here.

[0093] As an optional implementation method, the formula for the non-conforming tag timing control algorithm is as follows:

[0094] T_trigger = L / (V×k) + t_delay

[0095] Where T_trigger is the hammer trigger time;

[0096] L is the physical distance from the visual inspection component 7 to the pressure point of the gear module 21;

[0097] V is the linear speed of the label roll conveyor;

[0098] t_delay is the system delay compensation, which can include the solenoid valve response time and mechanical inertia delay;

[0099] k is the dynamic slip coefficient, ranging from 0.92 to 1.08. The dynamic slip coefficient k adopts a speed segment compensation strategy.

[0100] When the linear speed V of the label roll conveyor is ≤30m / min, k=1.0;

[0101] When the linear speed of the label roll conveyor V∈(30,45]m / min, k=0.98±0.02;

[0102] When the linear speed V of the label roll conveyor is greater than 45 m / min, k = 0.95 ± 0.03.

[0103] In this implementation, a timing control algorithm for non-conforming labels is used to accurately calculate the trigger time of the pressure hammer punching. The physical distance L from the visual inspection component 7 to the pressure hammer point of the gear module 21 is introduced as a basic parameter to ensure the spatial accuracy of the punching position. By acquiring the conveyor speed V of the label roll in real time, the algorithm can dynamically respond to changes in production speed. In addition, by setting a system delay compensation t_delay, the time lag effect of image processing, signal transmission and actuator response is effectively eliminated, improving the real-time performance of the control. Furthermore, this implementation innovatively employs a dynamic slip coefficient k and implements a speed-segmented compensation strategy: when the conveyor speed V ≤ 30 m / min, k = 1.0 is used to ensure calculation stability under low-speed conditions; when the speed is in the range of (30, 45] m / min, k = 0.98 ± 0.02 is used to moderately compensate for the elastic slippage of the conveyor belt under medium-speed conditions; when the speed > 45 m / min, k = 0.95 ± 0.03 is used to fully compensate for the increased dynamic slippage under high-speed conditions. This segmented compensation strategy scientifically solves the problem of deviation between the actual and theoretically calculated positions of the labels caused by factors such as the elastic deformation of the conveyor belt and changes in friction under different production speeds, enabling the trigger time calculation to accurately adapt to actual production conditions. Overall, this timing control algorithm significantly improves the spatiotemporal accuracy of punching defective labels through a multi-parameter collaborative compensation mechanism, ensuring reliable punching synchronization under various production speeds and effectively reducing the false punching rate and missed punching rate in high-speed production.

[0104] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A press ram die-cutting mechanism characterized by, The press hammer cutting mechanism comprises: a conveying assembly for conveying a label roll along a first path; the label roll has a plurality of chip labels, and the chip labels include qualified labels and unqualified labels; the chip labels on different types of label rolls have different pitches; a press hole wheel assembly comprising a plurality of gear modules, different types of gear modules having different numbers of teeth, and the larger the number of teeth of the gear module, the smaller the pitch of the corresponding chip label; a press roller arranged on the first path, and the label roll passes the outer periphery of the press roller; a driving assembly for driving connection with any one of the gear modules; the driving assembly is used to drive the gear module to rotate, so that the tooth tip of the gear module moves to press against the unqualified label passing through the press roller, so that the tooth tip of the gear module presses and cuts the chip on the unqualified label; the press roller is provided with a hole array, and the hole array is arranged towards the label roll; a cavity is formed in the interior of the press roller, each hole in the hole array is communicated to the cavity, the cavity is in a conical shape, and the diameter of one end of the cavity towards the hole array is larger than the diameter of the other end of the cavity away from the hole array; the press hammer cutting mechanism further comprises a vacuum assembly, one end of the cavity away from the hole array is communicated with the vacuum assembly, and the vacuum assembly is used to form negative pressure in the cavity; the press hammer cutting mechanism further comprises a visual detection assembly and a control module, and the visual detection assembly, the conveying assembly and the driving assembly are in communication connection with the control module; the visual detection assembly is arranged upstream of the press roller along the first path, and the visual detection assembly is arranged towards the label roll; the visual detection assembly is used to detect the conveying speed of the label roll; the control module is used to calculate a pressure compensation value based on the conveying speed of the label roll, the substrate thickness of the chip label and the material coefficient of the substrate by using a pressure compensation relationship; wherein the pressure compensation relationship is: P = 0.55×T+0.15×V+0.3×M wherein P is the pressure, T is the substrate thickness of the chip label, V is the conveying speed of the label roll, and M is the material coefficient of the substrate, and the value range is 0.8-1.

5.

2. The press hammer die cutting mechanism of claim 1 wherein, The gear module comprises a three-tooth gear, a four-tooth gear, a five-tooth gear, a six-tooth gear and an eight-tooth gear; the three-tooth gear has uniformly distributed tooth edges, the tooth edges are made of tungsten steel, and the tooth root of the three-tooth gear is integrated with a micro heat pipe; and / or, the four-tooth gear has uniformly distributed tooth edges, the tooth edges are made of tungsten steel, and the tooth root of the four-tooth gear is integrated with a micro heat pipe; and / or, the five-tooth gear is made of titanium alloy, the middle part of the gear tooth of the five-tooth gear is provided with a tooth tip protrusion, and the tooth tip protrusion protrudes from the addendum circle of the gear tooth; and / or, the six-tooth gear is made of ceramic matrix composite material; and / or, the eight-tooth gear is made of ceramic matrix composite material; and / or, the eight-tooth gear is integrated with an electron probe between the teeth, and the electron probe is used for detecting deformation.

3. The press hammer die cutting mechanism of claim 1 wherein, The press hammer punching mechanism further comprises a rack, and two ends of the press roller are rotationally connected with the rack; The driving assembly comprises a servo motor and a transmission roller, the servo motor is arranged on the rack, and the servo motor is in transmission connection with the transmission roller and the press roller respectively; a positioning protrusion is arranged on the outer periphery of the transmission roller, and the gear module is sleeved on the transmission roller and matched with the positioning protrusion.

4. The press hammer die cutting mechanism of claim 3 wherein, A first pressing plate is detachably arranged on the rack, the first pressing plate is in rigid abutment with the top of the two sides of the transmission roller and restricts the movement freedom of the transmission roller, and the press roller is located below the gear module.

5. The press hammer die cutting mechanism of claim 3 wherein, The driving assembly further comprises two connecting blocks and two air cylinders; the two air cylinders are arranged on the two sides of the rack respectively; the driving parts of the two air cylinders are connected with the two connecting blocks correspondingly; A through hole is formed in the connecting block, and the two ends of the transmission roller are arranged in the through holes of the two connecting blocks respectively; the two air cylinders are used for driving the connecting blocks to move towards the press roller, so as to drive the gear module on the transmission roller to move towards the press roller and press the unqualified label; A leveling structure is arranged between the air cylinder and the rack, and the leveling structure is used for adjusting the height of the air cylinder, so as to adjust the height of the two sides of the transmission roller, so that the axis of the transmission roller is parallel to the axis of the press roller.

6. The press hammer die cutting mechanism of claim 5 wherein, The driving assembly further comprises a second pressing plate, the driving parts of the two air cylinders are connected with the two ends of the same side of the second pressing plate respectively, and the top of the two connecting blocks is connected with the two ends of the other side of the two ends of the second pressing plate respectively; the bottom of the connecting block is provided with a spring arranged in the vertical direction, and the bottom of the connecting block is elastically connected with the rack through the spring; The press hammer punching mechanism further comprises a press hammer height adjusting assembly, the press hammer height adjusting assembly comprises an adjusting knob and a strain sensor, the upper surface of the adjusting knob is provided with a scale disc, the bottom of the adjusting knob is provided with a screw rod, a threaded through hole is formed in the top plate of the rack, the screw rod is in threaded connection with the threaded through hole, the screw rod passes through the threaded through hole and presses the second pressing plate, and the adjusting knob is used for adjusting the height of the second pressing plate, so as to adjust the height of the gear module. The strain sensor is arranged on the press roller, and the strain sensor is used for monitoring the pressure received by the chip label.

7. The press punch mechanism of any one of claims 1 to 6, wherein, The visual detection assembly is further used for shooting the chip label on the label roll paper and identifying the edge features of the unqualified label; and the control module is used for adjusting the speed of the conveying assembly, the rotating speed of the driving assembly and the pressing time based on an unqualified label timing control algorithm after detecting that the visual detection assembly shoots the unqualified label, so that the unqualified label passing through the press roller is punched by the gear module.

8. The press hammer die cutting mechanism of claim 7 wherein, The formula of the unqualified label timing control algorithm is as follows: T_trigger = L / (V×k) + t_delay Wherein, T_trigger is the press hammer triggering time; L is the physical distance from the visual detection assembly to the press hammer point of the gear module; V is the linear speed of the label roll paper; t_delay is a system delay compensation; k is a dynamic slip coefficient, ranging from 0.92 to 1.08, the dynamic slip coefficient k adopts a speed segmentation compensation strategy: when the linear speed of the label roll paper V≤30 m / min, k=1.0; when the linear speed of the label roll paper V∈(30, 45] m / min, k=0.98±0.02; when the linear speed of the label roll paper V>45 m / min, k=0.95±0.03.

Images