Inflatable shaft and splitting machine

Abstract

The utility model relates to the field of copper foil, and particularly discloses an inflatable shaft and a splitting machine, the inflatable shaft comprises a shaft sleeve and an air bag, the air bag is arranged in the shaft sleeve, a sensor is arranged in the air bag, and the sensor is used for detecting whether the air pressure in the air bag reaches the preset air pressure or not and transmitting a detection signal to external equipment. According to the method, the air pressure in the air bag is monitored in real time in the mode, so that adjustment can be made in time according to the detected air pressure state, and the conditions of copper foil roll disengaging, roll channeling and copper foil layering in the slitting process are reduced.

Description

Technical Field

[0001] This application relates to the field of copper foil, and more particularly to an air shaft and a slitting machine. Background Technology

[0002] The air shaft is one of the important parts of the slitting machine. Insufficient air pressure or excessive air pressure of the air shaft will affect the quality of copper foil and cause cost losses.

[0003] Currently, the pressure of the air shaft is generally judged by manually pressing the surface of the air shaft to determine whether the pressure is sufficient. However, there are clear standards for the air shaft pressure in the slitting workshop. Operators can only rely on experience to judge whether the pressure is qualified, which can easily cause abnormalities such as copper foil rolling and unwinding.

[0004] Therefore, how to detect the air pressure inside the airbag in real time and adjust the air pressure in the airbag in a timely manner to improve the phenomenon of copper foil rolling and unwinding has become an urgent problem to be solved in this field. Utility Model Content

[0005] This application discloses an air expansion shaft and a slitting machine, the purpose of which is to detect the air pressure in the air bladder in real time, adjust the air pressure state in the air bladder in a timely manner, and improve the phenomenon of copper foil snagging and unwinding.

[0006] This application discloses an air shaft, including a bushing and an air bladder. The air bladder is disposed inside the bushing, and a sensor is disposed inside the air bladder. The sensor is used to detect whether the gas pressure inside the air bladder reaches a preset gas pressure value and transmits the detection signal to an external device.

[0007] Optionally, the sensor includes a wireless pressure sensor, which transmits the detection signal to an external device via wireless signal transmission.

[0008] Optionally, the outer surface of the airbag is provided with a plurality of key strips at intervals, and the bushing is provided with a keyway corresponding to the position of each key strip. When the airbag is in a first air pressure state, the key strip protrudes from the keyway, and when the airbag is in a second air pressure state, the key strip is embedded in the keyway.

[0009] Optionally, a plurality of key strips are arranged circumferentially along the outer surface of the airbag; and at least two key strips arranged circumferentially along the outer surface of the airbag constitute a key strip group, and a plurality of key strip groups are arranged at intervals along the extension direction of the airbag.

[0010] Optionally, within each key bar group, the spacing between two adjacent key bars is equal; the spacing between two adjacent key bar groups is equal.

[0011] Optionally, the key bar is elongated, and the extension direction of each key bar is the same as the extension direction of the bushing.

[0012] Optionally, the air shaft further includes a pressure relief structure and a fixing rod. The pressure relief structure is connected to one end of the bushing; the fixing rod is connected to the other end of the bushing; the fixing rod is used to connect to external equipment; the pressure relief structure controls the air pressure inside the airbag; the pressure relief structure includes a housing, an air nozzle, a spring, a piston, and a limiting sleeve. The air nozzle is disposed on the housing, and the spring, the piston, and the limiting sleeve are disposed inside the housing. One end of the spring is connected to the side of the housing away from the bushing, and the other end is connected to the piston. The piston can reciprocate along the extension direction of the spring, and the limiting sleeve is used to restrict the movement of the piston on the side of the limiting sleeve and the housing closer to the bushing.

[0013] Optionally, the key bars in two adjacent key bar groups are staggered, or the key bar positions in two adjacent key bar groups correspond one-to-one.

[0014] This application also discloses a slitting machine, including a machine base, and the slitting machine further includes the aforementioned air shaft, which is connected to the machine base.

[0015] Optionally, a sensor is installed inside the air bladder of the air shaft, and a display screen is installed on the machine base. A signal receiver is installed inside the display screen, and the signal receiver is used to receive the detection signal from the sensor to display the parameters on the display screen.

[0016] This application improves upon traditional air shafts by installing sensors inside the air chamber. These sensors monitor the air pressure within the chamber in real time, determining whether it has reached a preset pressure value. The detection signal is then transmitted to external equipment. Operators can then adjust the air pressure within the chamber based on the sensor feedback, ensuring it remains within the set range and preventing excessively low or high pressure. This effectively solves the problems of copper foil snagging and unwinding caused by unstable air pressure, improving production process stability and product quality. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They serve to demonstrate implementation methods of this application and, together with the textual description, explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort. In the drawings:

[0018] Figure 1This is a schematic diagram of the first embodiment of the air shaft of this application;

[0019] Figure 2 This is a schematic diagram of the second embodiment of the air shaft of this application;

[0020] Figure 3 This is a schematic diagram of one embodiment of the slitting machine of this application;

[0021] Figure 4 This is a schematic diagram of a second embodiment of the slitting machine of this application.

[0022] Among them, 10 is the slitting machine; 100 is the air shaft; 110 is the bushing; 111 is the keyway; 120 is the air bladder; 121 is the key bar; 122 is the key bar assembly; 130 is the sensor; 131 is the wireless pressure sensor; 140 is the pressure relief structure; 141 is the housing; 142 is the air nozzle; 143 is the spring; 144 is the piston; 145 is the limit sleeve; 150 is the fixing rod; 200 is the display screen; 210 is the signal receiver; and 300 is the machine base. Detailed Implementation

[0023] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Figure 1 This is a schematic diagram of the first embodiment of the air shaft of this application, as shown. Figure 1 As shown in the figure, this application embodiment also discloses an air shaft 100, including a bushing 110 and an air bladder 120. The air bladder 120 is disposed inside the bushing 110, and a sensor 130 is disposed inside the air bladder 120. The sensor 130 is used to detect whether the gas pressure inside the air bladder 120 reaches a preset gas pressure value, and transmits the detection signal to an external device.

[0025] This application improves upon traditional air shafts by installing a sensor 130 inside the air chamber 120. The sensor 130 monitors the air pressure within the air chamber 120 in real time, determining whether it has reached a preset pressure value and transmitting the detection signal to external equipment. Operators can then adjust the air pressure within the air chamber 120 based on the data from the sensor 130, ensuring it remains within the set pressure range and preventing excessively low or high pressure. This effectively solves the problem of copper foil snagging and unwinding caused by unstable air pressure, improving production process stability and product quality.

[0026] It should be noted that in actual production, a standard air pressure value is usually set for the air pressure inside the airbag 120 to ensure normal copper foil slitting. This allows for comparison between the set standard air pressure value and the actual air pressure inside the airbag 120 to determine whether the air pressure inside the airbag 120 is too low or too high, so that the air pressure inside the airbag 120 can be adjusted in a timely manner. The preset air pressure value in this application can be understood as the preset standard air pressure value. In addition, the external device in this application can be a display device, such as a monitor, which displays the air pressure data detected by the sensor 130, thereby facilitating the operator to observe and adjust the air pressure inside the airbag 120.

[0027] Specifically, sensor 130 includes wireless pressure sensor 131, which transmits detection signals to external devices via wireless signal transmission.

[0028] In this application, a wireless pressure sensor 131 is used to transmit wireless signals, such as via Wi-Fi or Bluetooth. The detected air pressure signal within the airbag 120 is quickly and accurately transmitted to an external device in real time. This allows operators to adjust the air pressure within the airbag 120 in a timely manner based on the precise pressure value provided by the wireless pressure sensor 131, ensuring that the air pressure within the airbag 120 remains within a preset range. This effectively mitigates situations where the air pressure within the airbag 120 is too high or too low, thereby preventing copper foil roll-up and unwinding, and improving the safety and stability of the production process.

[0029] Furthermore, the outer surface of the airbag 120 is provided with multiple key strips 121 at intervals, and the bushing 110 is provided with a keyway 111 corresponding to the position of each key strip 121. When the airbag 120 is in the first air pressure state, the key strip 121 protrudes out of the keyway 111, and when the airbag 120 is in the second air pressure state, the key strip 121 is embedded in the keyway 111.

[0030] In this application, the key bar 121 and the air bag 120 can be integrally formed and made of the same material. When it is necessary to clamp the copper foil roll, an external air supply device can be used to inflate the air bag 120. The air bag 120 expands and pushes the key bar 121 outward. When the air bag 120 is in the first air pressure state, the key bar 121 protrudes out of the key groove 111 of the bushing 110. Due to the restriction of the key bar 121 by the key groove 111, the axial sliding or rotation of the bushing 110 relative to the air bag 120 can be effectively prevented. During this process, the radial pressure generated by the air bag 120 is transmitted to the inner wall of the copper foil roll through the key bar 121, thereby achieving a firm clamping of the copper foil roll.

[0031] When it is necessary to loosen the copper foil roll, the airbag 120 is contracted by the exhaust operation of the external air supply device. The key bar 121 also retracts as the airbag 120 contracts. When the airbag 120 is in the second air pressure state, the key bar 121 is embedded in the key groove 111, thereby loosening the clamping state on the copper foil roll.

[0032] Furthermore, multiple key strips 121 are arranged circumferentially along the outer surface of the airbag 120; and at least two key strips 121 arranged circumferentially along the outer surface of the airbag 120 constitute a key strip group 122, and multiple key strip groups 122 are arranged at intervals along the extension direction of the airbag 120.

[0033] In this embodiment, by arranging multiple key bars 121 circumferentially along the outer surface of the airbag 120, when the copper foil roll needs to be pressed, the multiple key bars 121 protrude from the keyways 111 on the bushing 110 under the expansion of the airbag 120. This allows the multiple keyways 111 to limit the multiple key bars 121 in the circumferential direction of the airbag 120, and allows the key bars 121 to contact the bushing 121 through the keyways 111. This ensures that the fixing force between the bushing 110 and the airbag 120 is more evenly distributed in the circumferential direction. This effectively prevents the bushing 110 from shifting or shaking during rotation, thereby improving the stability of the entire air shaft 100.

[0034] In addition, at least two key strips 122 form a key strip group 122, and multiple key strip groups 122 are arranged at intervals along the extension direction of the airbag 120, so that when the bushing 110 is subjected to torque, each key strip group 122 can provide effective support, avoiding deformation or damage caused by excessive local force; further enhancing the anti-torque capability between the airbag 120 and the bushing 110.

[0035] Furthermore, the design of the key bar group 122 being arranged at intervals along the extension direction of the air bag 120 allows the number and spacing of the key bar group 122 to be adjusted according to actual needs, thereby meeting the usage requirements of bushings 110 with different diameter specifications and increasing the applicability of the air shaft 100.

[0036] Furthermore, within each key bar group 122, the spacing between two adjacent key bars 121 is equal; the spacing between two adjacent key bar groups 122 is equal.

[0037] In this embodiment, by ensuring equal spacing between adjacent key bars 121 within each key bar group 122, when the key bar 121 protrudes from the keyway 111 under the expansion of the airbag 120 and is confined by the keyway 111, the contact between the airbag 120 and the bushing 110 is tighter and more uniform. This not only helps reduce potential wobbling or displacement of the bushing 110 during rotation but also effectively prevents loosening due to insufficient local fixing force.

[0038] In addition, the design of equal spacing between two adjacent key strip groups 122 makes the structure of the entire air shaft 100 more symmetrical and stable along its extension direction; whether in the inflated or deflated state, the airbag 120 can maintain a good shape and avoid deformation due to uneven force.

[0039] In other words, by setting the spacing between two adjacent key bars 121 and the spacing between two adjacent key bar groups 122 to be equal within each key bar group 122, the key bars 121 and key bar groups 122 are evenly distributed in the extension direction of the airbag 120. The evenly distributed key bars 121 and key bar groups 122 can more reasonably distribute the pressure from the bushing 110 to the outer surface of the airbag 120, reducing the possibility of local stress concentration, thereby extending the service life of the airbag 120 and improving the reliability of the air shaft 100.

[0040] Specifically, the key bar 121 is elongated, and the extension direction of each key bar 121 is the same as the extension direction of the bushing 110.

[0041] In this embodiment, the key bar 121 is elongated and extends in the same direction as the bushing 110, so that when the airbag 120 is inflated, the elongated key bar 121 can be better embedded in the keyway 111 of the bushing 110, and the fit between it and the bushing 110 is tighter. This can effectively enhance the axial fixing force between the airbag 120 and the bushing 110, thereby improving the stability of the entire air shaft 100 and reducing the possibility of loosening due to external impact or vibration.

[0042] In addition, since the elongated key bar 121 has a large contact area in the axial direction, it can effectively prevent the bushing 110 from sliding or moving along its extension direction, and can distribute the pressure from the bushing 110 more evenly to the outer surface of the airbag 120, avoiding deformation or damage caused by excessive local stress, and extending the service life of the airbag 120.

[0043] Furthermore, the air shaft 100 also includes a pressure relief structure 140 and a fixing rod 150. The pressure relief structure 140 is connected to one end of the bushing 110; the fixing rod 150 is connected to the other end of the bushing 110; the fixing rod 150 is used to connect to external equipment; the pressure relief structure 140 controls the air pressure inside the airbag 120; the pressure relief structure 140 includes a housing 141, an air nozzle 142, a spring 143, a piston 144, and a limiting sleeve 145. The air nozzle 142 is disposed on the housing 141, and the spring 143, piston 144, and limiting sleeve 145 are disposed inside the housing 141. One end of the spring 143 is connected to the side of the housing 141 away from the bushing 110, and the other end is connected to the piston 144. The piston 144 can reciprocate along the extension direction of the spring 143. The limiting sleeve 145 is used to restrict the piston 144 from moving on the side of the limiting sleeve 145 and the housing 141 closer to the bushing 110.

[0044] In this application, the pressure relief structure 140 can effectively control the air pressure inside the airbag 120 to prevent bursting or damage caused by excessive air pressure. By setting components such as the air nozzle 142, spring 143, piston 144 and limit sleeve 145, the air pressure can be adjusted and released to ensure the normal operation of the entire air shaft 100.

[0045] The specific working principle is as follows: When the spring 143 of the pressure relief structure 140 is in a naturally extended state, the piston 144 is kept close to the air nozzle 142 under the action of the spring force of the spring 143; at this time, the air nozzle 142 is connected to the outside atmosphere, while the inside of the housing 141 is connected to the air bladder 120 of the air expansion shaft 100.

[0046] When the airbag 120 is inflated, gas enters the airbag 120 through the inside of the housing 141, causing the airbag 120 to expand and clamp the copper foil roll through the key bar 121. During this process, as the air pressure gradually increases, the pressure on the piston 144 increases, but at this time the elastic force of the spring 143 is sufficient to resist the movement of the piston 144, so the position of the piston 144 remains basically unchanged. During the normal operation of the air shaft 100, the air pressure in the airbag 120 is maintained within a stable range, and the piston 144 continues to be restricted to its original position by the spring 143, ensuring that the gas in the airbag 120 does not leak.

[0047] If the air pressure inside the airbag 120 exceeds the preset air pressure, the excessive pressure will overcome the elastic force of the spring 143 and push the piston 144 to move away from the air nozzle 142 along the extension direction of the spring 143. The movement of the piston 144 opens a gas passage from the airbag 120 to the air nozzle 142, allowing some gas to be discharged through the air nozzle 142, thereby reducing the air pressure inside the airbag 120.

[0048] The limiting sleeve 145 plays a limiting role in this process, preventing the piston 144 from moving excessively and ensuring that it always moves within the predetermined range.

[0049] As the air pressure inside the airbag 120 decreases, once the pressure returns to a safe range, the spring force of the spring 143 pushes the piston 144 back to its initial position, closing the gas passage and stopping the pressure relief. This allows the air shaft 100 to maintain safe operation even under pressure fluctuations or unexpected overpressure conditions, preventing the airbag 120 from rupturing or suffering other damage due to excessive pressure.

[0050] The fixing rod 150 is connected to the other end of the bushing 110 and connected to the external equipment, providing an additional support point for the air shaft 100, thereby enhancing its stability during use; whether during installation or disassembly, the fixing rod 150 can play a good fixing role, preventing the air shaft 100 from shaking or shifting.

[0051] Figure 2 This is a schematic diagram of the second embodiment of the air shaft of this application, as shown. Figure 2 As shown, Figure 2 The illustrated embodiment is based on Figure 1 The improvement involves staggering the key bars 121 in two adjacent key bar groups 122, or ensuring that the positions of the key bars 121 in two adjacent key bar groups 122 correspond one-to-one.

[0052] In this embodiment, the arrangement of the key bars 121 in two adjacent key bar groups 122 is improved. When the key bars 121 in two adjacent key bar groups 122 are misaligned, when multiple key bars 121 protrude from the keyway 111 of the bushing 110 under the expansion of the air bladder 120, multiple key bars 121 contact the bushing 110 through the keyway 111 by compression. This makes the contact points between the air bladder 120 and the bushing 110 more dispersed in the circumferential direction. On the one hand, this can avoid deformation caused by excessive local force, and on the other hand, it can effectively resist the action of shear force, preventing the bushing 110 from sliding or shifting during rotation, thereby improving the shear resistance of the air shaft 100.

[0053] When the key bars 121 in two adjacent key bar groups 122 are positioned in a one-to-one correspondence, the multiple key bars 121 form a symmetrical arrangement in the extension direction of the airbag 120. The multiple symmetrical key bars 121 help to reasonably distribute the force between the airbag 120 and the bushing 110 to various parts of the airbag 120, reducing the possibility of local stress concentration. This helps to enhance the stability of the entire air shaft 100 along its extension direction, ensuring that the airbag 120 can uniformly bear the pressure of the bushing 110 when it is inflated.

[0054] In this embodiment, regardless of whether the key bars 121 of two adjacent key bar groups 122 are misaligned or correspond one-to-one, the force on the outer surface of the airbag 120 can be more uniform, thereby improving the working stability of the air shaft 100.

[0055] Figure 3 This is a schematic diagram of one embodiment of the slitting machine of this application, as shown below. Figure 3 As shown in the illustration, this application also discloses a slitting machine 10, including a machine base 300. The slitting machine 10 further includes the aforementioned air shaft 100, which is connected to the machine base 300. This ensures that the air shaft 100 can maintain stable rotation during the slitting process.

[0056] In order to effectively clamp or release the copper foil roll, the air shaft 100 is usually equipped with an air bladder 120. The air bladder 120 needs to be connected to the air supply system on the slitting machine 10 through an air pipe so that the air bladder 120 can be inflated or deflated when needed, thereby changing the clamping state of the air shaft 100 on the external copper foil roll.

[0057] In actual operation, when copper foil rolls need to be installed on slitting machine 10, the air shaft 100 is first inserted into the inner hole of the copper foil roll. Then, the air supply system of slitting machine 10 inflates the air bladder 120 inside the air shaft 100, causing the air bladder 120 to expand and press tightly against the inner wall of the copper foil roll, thus achieving a firm clamping. During the slitting process, the air shaft 100 rotates together with the drive shaft of slitting machine 10, driving the copper foil roll to rotate synchronously, and cooperating with the cutter to complete the slitting operation. After slitting is completed, the air bladder 120 is contracted by the exhaust operation, loosening the clamping of the copper foil roll, making it easy to remove it from the air shaft 100.

[0058] In a traditional slitting machine 10, the air shaft 100 is usually installed by manually judging whether the air pressure in the airbag 120 meets the preset air pressure standard. This can easily cause abnormalities such as copper foil rolling or unwinding.

[0059] Based on the above problems, this application improves the air shaft 100 on the slitting machine 10 by installing a sensor 130 inside the air bladder 120. The sensor 130 monitors the air pressure inside the air bladder 120 in real time and determines whether it has reached the preset air pressure value. The detection signal is then transmitted to external equipment. Operators can then adjust the air pressure inside the air bladder 120 in a timely manner based on the data from the sensor 130 to ensure it remains within the set pressure range, preventing excessively low or high pressure. This effectively solves the problem of copper foil snagging and unwinding caused by unstable air pressure, thereby improving the stability of the slitting machine 10 during the production process and the product quality.

[0060] Figure 4 This is a schematic diagram of the second embodiment of the slitting machine of this application, as shown below. Figure 4As shown, a sensor 130 is installed inside the air bladder 120 of the air shaft 100, and a display screen 200 is installed on the machine base 300. A signal receiver 210 is installed inside the display screen 200. The signal receiver 210 is used to receive the detection signal from the sensor 130 so as to display the parameters on the display screen 200.

[0061] In this embodiment, the air pressure inside the airbag 120 is monitored in real time by a sensor 130 within the airbag 120. The sensor 130 can be a wireless pressure sensor 131, which transmits the detected air pressure signal to the display screen 200 via wireless signal transmission. The display screen 200 is equipped with a signal receiver 210, which receives the detection signal from the sensor 130 in real time and displays the detected air pressure parameters on the display screen 200. This allows operators to monitor the air pressure status inside the airbag 120 in real time, enabling them to understand the working status of the air shaft 100 and promptly detect and handle abnormalities. Early warnings can be provided before potential problems occur, preventing equipment damage or safety accidents caused by abnormal parameters, thereby enhancing the reliability of the entire system.

[0062] Furthermore, operators do not need to manually check or measure the air pressure parameters of the airbag 120; they can obtain the necessary information simply by viewing the display screen 200, which greatly simplifies the operation process and improves work efficiency.

[0063] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0064] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. An air shaft, characterized in that, It includes a bushing and an airbag. The airbag is disposed inside the bushing and a sensor is disposed inside the airbag. The sensor is used to detect whether the gas pressure inside the airbag reaches a preset gas pressure value and transmits the detection signal to an external device.

2. The air shaft according to claim 1, characterized in that, The sensor includes a wireless pressure sensor, which transmits the detection signal to an external device via wireless signal transmission.

3. The air shaft according to claim 2, characterized in that, The outer surface of the airbag is provided with a plurality of key strips at intervals, and the bushing is provided with a keyway corresponding to the position of each key strip. When the airbag is in a first air pressure state, the key strip protrudes from the keyway, and when the airbag is in a second air pressure state, the key strip is embedded in the keyway.

4. The air shaft according to claim 3, characterized in that, Multiple key strips are arranged circumferentially along the outer surface of the airbag; and at least two key strips arranged circumferentially along the outer surface of the airbag constitute a key strip group, and multiple key strip groups are arranged at intervals along the extension direction of the airbag.

5. The air shaft according to claim 4, characterized in that, Within each key bar group, the spacing between two adjacent key bars is equal; the spacing between two adjacent key bar groups is equal.

6. The air shaft according to claim 5, characterized in that, The key bar is elongated, and the extension direction of each key bar is the same as the extension direction of the bushing.

7. The air shaft according to claim 6, characterized in that, The air shaft also includes a pressure relief structure and a fixing rod. The pressure relief structure is connected to one end of the bushing, and the fixing rod is connected to the other end of the bushing. The fixing rod is used to connect to external equipment; the pressure relief structure controls the air pressure inside the airbag. The pressure relief structure includes a housing, an air nozzle, a spring, a piston, and a limiting sleeve. The air nozzle is disposed on the housing, and the spring, the piston, and the limiting sleeve are disposed inside the housing. One end of the spring is connected to the side of the housing away from the bushing, and the other end is connected to the piston. The piston can reciprocate along the extension direction of the spring. The limiting sleeve is used to restrict the movement of the piston on the side of the housing near the bushing.

8. The air shaft according to claim 7, characterized in that, The key bars in two adjacent key bar groups are staggered, or the key bar positions in two adjacent key bar groups correspond one-to-one.

9. A slitting machine, comprising a machine base, characterized in that, The slitting machine includes an air shaft as described in any one of claims 1 to 8, the air shaft being connected to the machine base.

10. The slitting machine as described in claim 9, characterized in that, A sensor is installed inside the air bladder of the air shaft, and a display screen is installed on the machine base. A signal receiver is installed inside the display screen. The signal receiver is used to receive the detection signal from the sensor and display the parameters on the display screen.

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