Tire semi-finished product contour measuring device

Abstract

The utility model provides a tire semi-finished product contour measuring device. The device comprises a control unit, a transmission unit, an encoder, a motor, a detection unit, a mounting frame and a U-shaped frame, the control unit is in electric signal connection with the motor, the encoder and the detection unit. The U-shaped frame is transversely arranged and installed on the installation frame in a sliding mode, and the transmission unit is fixedly installed on the installation frame and fixedly connected with the U-shaped frame. The transmission unit and the encoder are respectively connected with the motor; the detection unit is fixedly installed on the U-shaped frame, a tire semi-finished product to be detected horizontally moves in the U-shaped frame, and the moving direction of the tire semi-finished product to be detected is perpendicular to the length direction of the U-shaped frame. According to the embodiment of the invention, the method improves the detection efficiency and accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of tire semi-finished product contour detection, and in particular to a tire semi-finished product contour measuring device. Background Art

[0002] Semi-finished tires include treads, sidewalls, cushion rubbers, bead glues, and inner liners. During the production process, the profile of the semi-finished tires needs to be controlled according to production requirements. For example, the thickness and width of the semi-finished tires must be within the range required by production. If the semi-finished tires produced do not meet the production requirements, the subsequently produced tires will not meet the production requirements, resulting in greater losses.

[0003] Therefore, in order to monitor the quality of semi-finished tires during the production process, the prior art measures the thickness and width of semi-finished tires by manually holding a measuring device. However, manual detection is not only inefficient, but may also result in large errors, thereby causing inaccurate quality detection of semi-finished tires. Utility Model Content

[0004] The present application provides a semi-finished tire contour measuring device to solve the problems mentioned in the above background technology.

[0005] The present application provides a tire semi-finished product profile measuring device, comprising: a control unit, a transmission unit, an encoder, a motor, a detection unit, a mounting frame, and a U-shaped frame;

[0006] The control unit is respectively connected to the motor, the encoder, and the detection unit by electrical signals;

[0007] The U-shaped frame is arranged horizontally and slidably mounted on the mounting frame, the transmission unit is fixedly mounted on the mounting frame and fixedly connected to the U-shaped frame; the transmission unit and the encoder are respectively connected to the motor;

[0008] The detection unit is fixedly mounted on the U-shaped frame, and the semi-finished tire product to be detected moves horizontally in the U-shaped frame, and the moving direction of the semi-finished tire product to be detected is perpendicular to the length direction of the U-shaped frame.

[0009] Optionally, the detection unit includes a through-beam sensor, and the through-beam sensor includes: a transmitter, a receiver and a detection circuit;

[0010] The transmitter and the receiver are respectively mounted on the top frame and the bottom frame inside the U-shaped frame and are arranged opposite to each other. The receiver is connected to the detection circuit, and the transmitter and the detection circuit are both connected to the control unit.

[0011] Optionally, the transmission unit comprises: a linear module;

[0012] The linear module is connected to the motor, and is fixedly connected to the U-shaped frame.

[0013] Optionally, the tire semi-finished product contour measuring device further includes: an active synchronous wheel, a driven synchronous wheel and a synchronous belt, the active synchronous wheel is connected to the motor, the driven synchronous wheel is connected to the active synchronous wheel via the synchronous belt, and the driven synchronous wheel is connected to the linear module.

[0014] Optionally, the semi-finished tire contour measuring device further comprises a blowing unit, the air outlet of the blowing unit is located inside the detection unit, and is used to provide compressed air to the inside of the detection unit.

[0015] Optionally, the semi-finished tire contour measuring device further comprises an industrial computer, the industrial computer comprises a central processing unit and a human-computer interaction interface, the central processing unit is respectively connected to the human-computer interaction interface and the control unit;

[0016] The control unit is used to send the contour data corresponding to the M target detection positions to the central processor;

[0017] The central processor is used to receive the contour data corresponding to the M target detection positions, obtain the contour of the semi-finished tire to be detected, and send it to the human-computer interaction interface for display.

[0018] Optionally, the semi-finished tire contour measuring device further comprises a detection sensor, and the detection sensor is mounted on a side wall inside the U-shaped frame.

[0019] In this embodiment, the tire semi-finished product profile measuring device includes: a control unit, a transmission unit, an encoder, a motor, a detection unit, a mounting frame, and a U-shaped frame; the control unit is respectively connected to the motor, the encoder, and the detection unit by electrical signals; the U-shaped frame is arranged horizontally and slidably mounted on the mounting frame, the transmission unit is fixedly mounted on the mounting frame, and is fixedly connected to the U-shaped frame; the transmission unit and the encoder are respectively connected to the motor; the detection unit is fixedly mounted on the U-shaped frame, and the tire semi-finished product to be detected moves horizontally in the U-shaped frame, and the moving direction of the tire semi-finished product to be detected is perpendicular to the length direction of the U-shaped frame. Compared with the prior art, the present application realizes the monitoring of the quality of the tire semi-finished product to be detected in the production process by setting a control unit, a transmission unit, an encoder, a motor, and a detection unit, and automatically measures the profile data of the current tire semi-finished product to be detected, thereby reducing the detection error and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A logical schematic diagram of a semi-finished tire contour measuring device provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the structure of a semi-finished tire profile measuring device provided in another embodiment of the present application;

[0023] Figure 3 A schematic diagram of a laser detection method provided in another embodiment of the present application.

[0024] In the figure: 1-control unit; 2-transmission unit; 3-encoder; 4-motor; 5-detection unit; 6-mounting frame; 7-U-shaped frame; 8-transmitter; 9-receiver; 10-linear module; 11-blowing device; 71-top frame; 72-bottom frame. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0026] Figure 1 A tire semi-finished product profile measuring device is shown according to an embodiment of the present application. Figure 1 As shown, combined with Figure 2 and Figure 3 , the device includes: a control unit 1, a transmission unit 2, an encoder 3, a motor 4, a detection unit 5, a mounting frame 6, and a U-shaped frame 7;

[0027] The control unit 1 is connected to the motor 4, the encoder 3, and the detection unit 5 by electrical signals respectively;

[0028] The U-shaped frame 7 is arranged horizontally and slidably mounted on the mounting frame 6. The transmission unit 2 is fixedly mounted on the mounting frame 6 and is fixedly connected to the U-shaped frame 7. The transmission unit 2 and the encoder 3 are respectively connected to the motor 4.

[0029] The detection unit 5 is fixedly mounted on the U-shaped frame 7, and the semi-finished tire product to be detected moves horizontally in the U-shaped frame 7, and the moving direction of the semi-finished tire product to be detected is perpendicular to the length direction of the U-shaped frame 7;

[0030] The encoder 3 is used to obtain the rotation data of the motor 4 and send the rotation data to the control unit 1;

[0031] A control unit 1 is used to receive the rotation data, and determine the position data of the detection unit 5 according to the rotation data, and when the position data corresponds to one of the M target detection positions of the semi-finished tire to be detected, control the detection unit 5 to measure the contour data at the target detection position, receive the contour data at the target detection position measured and sent by the detection unit 5, and associate the target detection position with the contour data;

[0032] The detection unit 5 is used for reciprocating under the drive of the transmission unit 2 , and when moving to the target detection position, obtaining contour data at the target detection position, and sending the contour data to the control unit 1 .

[0033] Specifically, the control unit 1 is connected to the motor 4 to drive the motor 4 to rotate. The control unit 1 controls the operation of the motor 4. The motor 4 is connected to the transmission unit 2. When the control unit 1 controls the operation of the motor 4, the motor 4 drives the transmission unit 2 to move. Since the transmission unit 2 is fixedly connected to the U-shaped frame 7, and the U-shaped frame 7 is slidably mounted on the mounting frame 6, when the transmission unit 2 moves driven by the motor 4, the U-shaped frame 7 is driven to move on the mounting frame 6, thereby driving the detection unit 5 to move.

[0034] The control unit 1 is connected to the detection unit 5, and is used to control the detection unit 5 to detect and obtain the contour data corresponding to the M target detection positions of the semi-finished tire to be detected by the detection unit 5. The contour data includes thickness data and width data. The target detection position is located by the horizontal coordinate and the vertical coordinate, wherein the horizontal coordinate is the position of the target detection position in the length direction of the semi-finished tire to be detected, and the vertical coordinate is the position of the target detection position in the width direction of the semi-finished tire to be detected.

[0035] When the profile data of the semi-finished tire to be inspected needs to be inspected, the semi-finished tire to be inspected moves horizontally in the U-shaped frame 7 along its length direction, and the moving direction of the semi-finished tire to be inspected is perpendicular to the moving direction of the inspection unit 5 .

[0036] according to Figure 3 As shown, the area between AB is the detection range of the detection unit 5, denoted by a, where a is a known length; the area between CD is the width of the semi-finished tire to be detected, denoted by b; the distance between A and C is the distance from the edge of the semi-finished tire to the edge of the detection range of the detection unit 5, denoted by c, where c is a known length.

[0037] When the detection unit 5 moves from point A to point C, the control unit 1 controls the detection unit 5 to detect the thickness data of point C. After the detection unit 5 detects the thickness data of point C and uploads it to the control unit 1, the control unit 1 controls the detection unit 5 to move to point E. After the detection unit 5 detects the thickness data of point E and uploads it to the control unit 1, the remaining target detection positions on the cross section where point E of the semi-finished tire to be detected are detected in sequence until the detection unit 5 moves to point D. The detection unit 5 detects the thickness data of point D and uploads it to the control unit 1. At this time, all the target detection positions on the cross section have been detected, and the detection unit 5 continues to move to point B.

[0038] Among them, the target detection position can be a pre-set position on the semi-finished tire to be detected whose quality is to be detected. At this time, when the semi-finished tire to be detected moves, when the horizontal coordinate corresponding to its target detection position is within the detection range of the detection unit 5, the semi-finished tire to be detected is controlled to stop moving.

[0039] Then, the motor 4 drives the U-shaped frame 7 to move, that is, drives the detection unit 5 to move. During the movement of the detection unit 5, the encoder 3 obtains the rotation data such as the rotation angle, speed and direction of the motor 4, and sends the detected rotation data to the control unit 1. The control unit 1 obtains the position data of the detection unit 5 through the rotation data. When it is confirmed that the position data of the detection unit 5 corresponds to the ordinate corresponding to the target detection position, the current position of the detection unit 5 is the target detection position.

[0040] In addition, the target detection position can be a position on the semi-finished tire to be detected whose quality is to be detected, which is randomly selected during the detection process. At this time, when the semi-finished tire to be detected moves, the semi-finished tire to be detected is randomly controlled to stop moving, and the horizontal coordinate of the semi-finished tire to be detected that is currently within the detection range of the detection unit 5 can be determined by manual measurement, sensors, etc.

[0041] Then, during the movement of the detection unit 5, the detection unit 5 is randomly controlled to perform detection. At this time, the vertical coordinate is obtained through the encoder 3, thereby determining the target detection position.

[0042] Furthermore, in order to obtain the profile of the semi-finished tire to be inspected at the same horizontal coordinate, it is necessary to obtain profile data at multiple vertical coordinate positions on the same horizontal coordinate.

[0043] Furthermore, the control unit 1 establishes a correlation relationship by making a one-to-one correspondence between the target detection position and the contour data according to the acquired target detection position and contour data. In this way, the staff can download the acquired target detection position and contour data to generate the contour of the semi-finished tire to be detected, which is convenient for subsequent staff to perform manual calculations. For example, a table, a line graph, a contour graph, etc. can be generated.

[0044] The working process of the above-mentioned tire semi-finished product profile measuring device is as follows:

[0045] The semi-finished tire to be inspected enters the detection range of the detection unit 5. When the horizontal coordinate corresponding to a target detection position in the semi-finished tire to be inspected is directly below the detection unit 5, the control unit 1 controls the motor 4 to rotate, and the rotation of the motor 4 drives the transmission unit 2 to start moving, thereby driving the U-shaped frame 7 set on the transmission unit 2 to start moving, and then driving the detection unit 5 to move along the width direction of the semi-finished tire to be inspected.

[0046] During the movement, the encoder 3 records the rotation data such as the rotation angle, speed and direction of the current motor 4, and uploads it to the control unit 1. The control unit 1 calculates the current position data of the detection unit 5 according to the rotation data. When the control unit 1 calculates that the current position data of the detection unit 5 corresponds to a target detection position of the semi-finished tire to be detected, for example, Figure 3 At the target detection position C, the control unit 1 controls the detection unit 5 to detect the thickness value at the target detection position C and uploads it to the control unit 1. The control unit 1 records the thickness data of the target detection position C and associates the thickness data of the target detection position C with the target detection position C.

[0047] Then, the motor 4 continues to drive the detection unit 5 to move along the width direction of the semi-finished tire to be detected. When the rotation data sent by the encoder 3 determines that the current position data of the detection unit 5 corresponds to a target detection position of the semi-finished tire to be detected, for example, Figure 3 At the target detection position E, the control unit 1 controls the detection unit 5 to detect the thickness value at the target detection position E and uploads it to the control unit 1. The control unit 1 records the thickness data at the target detection position E and associates the thickness data at the target detection position E with the target detection position E.

[0048] The contour data of other target detection positions on the horizontal axis are detected in the above manner.

[0049] The thickness data of the target detection position obtained by detection, as well as the correlation between the thickness data of the target detection position and the target detection position are stored in the control unit 1, and the staff can download them. Based on these data, the contour of the semi-finished tire to be detected corresponding to the horizontal coordinate can be generated. In this way, the width data corresponding to the horizontal coordinate of the semi-finished tire to be detected can be detected through the contour.

[0050] After the target detection position on the horizontal axis is detected, the semi-finished tire to be detected is controlled to continue moving to the next horizontal axis.

[0051] In this embodiment, the tire semi-finished product profile measuring device includes: a control unit 1, a transmission unit 2, an encoder 3, a motor 4, a detection unit 5, a mounting frame 6, and a U-shaped frame 7; the control unit 1 is respectively connected to the motor 4, the encoder 3, and the detection unit 5 by electrical signals; the U-shaped frame 7 is arranged horizontally and slidably mounted on the mounting frame 6, the transmission unit 2 is fixedly mounted on the mounting frame 6, and is fixedly connected to the U-shaped frame 7; the transmission unit 2 and the encoder 3 are respectively connected to the motor 4; the detection unit 5 is fixedly mounted on the U-shaped frame 7, and the tire semi-finished product to be detected moves horizontally in the U-shaped frame 7, and the moving direction of the tire semi-finished product to be detected is perpendicular to the length direction of the U-shaped frame 7. Compared with the prior art, the present application realizes the monitoring of the quality of the tire semi-finished product to be detected in the production process by setting the control unit 1, the transmission unit 2, the encoder 3, the motor 4, and the detection unit 5, and automatically measures the profile data of the current tire semi-finished product to be detected, thereby reducing the detection error and improving the detection efficiency.

[0052] Alternatively, see Figure 2 , the detection unit 5 includes a beam sensor, and the beam sensor includes: a transmitter 8, a receiver 9 and a detection circuit;

[0053] The transmitter 8 and the receiver 9 are respectively mounted on the top frame 71 and the bottom frame 72 inside the U-shaped frame 7 and are arranged opposite to each other. The receiver 9 is connected to the detection circuit, and the transmitter 8 and the detection circuit are both connected to the control unit 1.

[0054] The transmitter 8 and the receiver 9 are respectively installed on the top frame 71 and the bottom frame 72 inside the U-shaped frame 7. When the U-shaped frame 7 moves, the transmitter 8 and the receiver 9 move synchronously. When installed, the transmitting port of the transmitter 8 and the receiving port of the receiver 9 are on the same vertical line.

[0055] Furthermore, the receiver 9 is connected to the control unit 1 via a detection circuit, and sends the detection data to the control unit 1 , and the control unit 1 obtains the thickness of the semi-finished tire product to be detected through the detection data.

[0056] Among them, the working principle of the through-beam sensor is: when there is no obstruction between the transmitter 8 and the receiver 9, the detection circuit calculates the distance between the transmitter 8 and the receiver 9. When the light intensity emitted by the transmitter 8 is blocked by the semi-finished tire to be detected, the light intensity will become weaker. For different thicknesses, the light intensity received by the receiver 9 is also different. Therefore, the detection circuit obtains the thickness data of the semi-finished tire to be detected at the target detection position according to the change of light intensity.

[0057] Therefore, when the U-shaped frame 7 moves to the target detection position, the control unit 1 controls the transmitter 8 to emit a laser, and the laser irradiates the upper surface of the semi-finished tire to be detected, passes through the semi-finished tire to be detected, and reaches the receiver 9. The received laser signal is processed by the detection circuit to obtain the thickness data of the semi-finished tire to be detected at the target detection position, and is uploaded to the control unit 1.

[0058] Optionally, the transmission unit 2 includes: a linear module 10;

[0059] The linear module 10 is connected to the motor 4 , which is fixedly connected to the U-shaped frame 7 .

[0060] The linear module 10 includes a slider and a transverse axis. The slider is sleeved on the transverse axis. When the motor 4 is running, the motor 4 drives the transverse axis to rotate, and the transverse axis drives the slider to move along the transverse axis.

[0061] Furthermore, the U-shaped frame 7 is arranged on the slider of the linear module 10. Specifically, the bottom wall of the base frame 72 of the U-shaped frame 7 is arranged on the top of the slider. When the slider moves, the U-shaped frame 7 moves synchronously with the slider, thereby controlling the detection unit 5 arranged on the U-shaped frame 7 to move to M target detection positions.

[0062] In addition, the moving range of the U-shaped frame 7 needs to be larger than the range of the semi-finished tire product to be inspected.

[0063] Optionally, the tire semi-finished product contour measuring device further includes: an active synchronous wheel, a driven synchronous wheel and a synchronous belt, the active synchronous wheel is connected to the motor 4 , the driven synchronous wheel is connected to the active synchronous wheel via the synchronous belt, and the driven synchronous wheel is connected to the linear module 10 .

[0064] Among them, the active synchronous wheel is arranged at the output end of the motor 4, and the driven synchronous wheel is connected to one end of the horizontal axis in the linear module 10. When the motor 4 drives the active synchronous wheel to rotate, the driven synchronous wheel is driven to rotate through the synchronous belt, and the driven synchronous wheel drives the horizontal axis to rotate, so that the slider moves on the horizontal axis, and the movement of the slider drives the U-shaped frame 7 to move, and the U-shaped frame 7 moves to the semi-finished tire product to be inspected.

[0065] Furthermore, by providing a driving synchronous wheel, a driven synchronous wheel and a synchronous belt, when the motor 4 rotates, the power of the motor 4 is transmitted to the linear module 10, and the accuracy and stability of the transmission of the driving synchronous wheel and the driven synchronous wheel are ensured by the synchronous belt.

[0066] Optionally, the semi-finished tire contour measuring device further comprises a blowing unit, the air outlet of which is located inside the detection unit 5 and is used to provide compressed air to the inside of the detection unit 5 .

[0067] Among them, the blowing unit includes a compressed air connector, an air pipe and a pneumatic box. The pneumatic box is arranged next to the control unit 1 and connected to the control unit 1. One end of the air pipe is connected to the pneumatic box, and the other end is connected to the compressed air connector. The compressed air connector is located inside the detection unit 5.

[0068] When the control unit 1 controls the motor 4 to start, it also controls the pneumatic box to start working. The pneumatic box transports air into the air pipe. The gas in the air pipe is input into the detection unit 5 through the compressed air joint, so that the detection unit 5 is filled with the air transported by the air pipe. At this time, the pressure in the detection unit 5 is compared with the pressure of the environment outside the detection unit 5. The pressure in the detection unit 5 is in a positive pressure state, which prevents the coke smoke generated at the work site from entering the detection unit 5, thereby improving the detection accuracy of the detection unit 5.

[0069] Optionally, the semi-finished tire contour measuring device further comprises an industrial computer, the industrial computer comprises a central processing unit and a human-computer interaction interface, and the central processing unit is respectively connected to the human-computer interaction interface and the control unit 1;

[0070] A control unit 1 is used to send contour data corresponding to M target detection positions to a central processor;

[0071] The central processing unit is used to receive the contour data corresponding to the M target detection positions, obtain the contour of the semi-finished tire to be detected, and send it to the human-computer interaction interface for display.

[0072] Among them, the control unit 1 is connected to the central processing unit, and the central processing unit is connected to the human-computer interaction interface. When the central processing unit receives the thickness data and position data corresponding to the M target detection positions transmitted by the control unit 1, a contour map of the semi-finished tire to be detected is generated and displayed on the human-computer interaction interface. At the same time, it is compared with the contour map of the pre-stored semi-finished tire. When the difference between the contour map of the semi-finished tire to be detected and the pre-stored contour map of the semi-finished tire is within a preset range, the thickness of the semi-finished tire to be detected is qualified. When the detection is unqualified, the human-computer interaction interface prompts unqualified.

[0073] Furthermore, the central processing unit can also automatically generate a cross-sectional view of the semi-finished tire to be inspected based on the M target detection positions, thickness and other data, perform quality analysis, and upload it to the human-computer interaction interface for display.

[0074] Optionally, the semi-finished tire contour measuring device further includes a detection sensor, which is mounted on a side wall inside the U-shaped frame 7 .

[0075] The detection sensor is arranged on the outer side wall of the top frame of the U-shaped frame 7 close to the entry direction of the semi-finished tire to be detected. Further, when the semi-finished tire to be detected enters the U-shaped frame 7, the detection sensor detects that the semi-finished tire to be detected has entered, and the detection sensor sends a detection signal to the control unit 1, and the control unit 1 starts to control the motor 4 to start, driving the linear module 10 to move, so that the U-shaped frame 7 follows the slider on the linear module 10 to move on the crossbar, so that the through-beam sensor reaches M target detection positions, and the through-beam sensor is turned on at the same time.

[0076] In addition, by setting the detection sensor, when the semi-finished tire to be detected enters the detection range of the through-beam sensor, the through-beam sensor starts to work, and there is no need to manually determine the time to start the through-beam sensor.

[0077] Optionally, two detection sensors are provided, and the two detection sensors are spaced a certain distance apart.

[0078] Among them, two detection sensors are used to detect that when the semi-finished tire to be detected enters the detection range of the device, when only one detection sensor detects the semi-finished tire to be detected, the control unit 1 controls the laser sensor to start detection. When both detection sensors do not detect the semi-finished tire to be detected, at this time, the semi-finished tire to be detected has been detected, and the control unit 1 controls the laser sensor to turn off.

[0079] Among them, when the front end of the semi-finished tire to be inspected is a bevel, only one sensor to be inspected may not be able to determine whether the semi-finished tire to be inspected enters the detection range of the laser sensor. By setting two sensors to be inspected, the detection of the semi-finished tire to be inspected entering the detection range of the laser sensor can be more accurate.

[0080] Finally, it should be noted that all contents not described in the technical solution of this application can be implemented using existing technologies. In addition, the above embodiments are only used to illustrate the technical solution of this application, rather than to limit it; although the application is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tire semi-finished product profile measuring device, characterized in that: include: Control unit, transmission unit, encoder, motor, detection unit, mounting frame, U-shaped frame; The control unit is respectively connected to the motor, the encoder, and the detection unit by electrical signals; The U-shaped frame is arranged horizontally and slidably mounted on the mounting frame, the transmission unit is fixedly mounted on the mounting frame and fixedly connected to the U-shaped frame; the transmission unit and the encoder are respectively connected to the motor; The detection unit is fixedly mounted on the U-shaped frame, and the semi-finished tire product to be detected moves horizontally in the U-shaped frame, and the moving direction of the semi-finished tire product to be detected is perpendicular to the length direction of the U-shaped frame.

2. The tire semi-finished product profile measuring device according to claim 1, characterized in that: The detection unit includes a through-beam sensor, and the through-beam sensor includes: a transmitter, a receiver and a detection circuit; The transmitter and the receiver are respectively mounted on the top frame and the bottom frame inside the U-shaped frame and are arranged opposite to each other. The receiver is connected to the detection circuit, and the transmitter and the detection circuit are both connected to the control unit.

3. The tire semi-finished product profile measuring device according to claim 1, characterized in that: The transmission unit comprises: a linear module; The linear module is connected to the motor, and is fixedly connected to the U-shaped frame.

4. The tire semi-finished product profile measuring device according to claim 3, characterized in that: Also includes: An active synchronous wheel, a driven synchronous wheel and a synchronous belt, wherein the active synchronous wheel is connected to the motor, the driven synchronous wheel is connected to the active synchronous wheel through the synchronous belt, and the driven synchronous wheel is connected to the linear module.

5. The tire semi-finished product profile measuring device according to claim 1, characterized in that: It also includes a blowing unit, the air outlet of which is located inside the detection unit and is used to provide compressed air to the inside of the detection unit.

6. The tire semi-finished product profile measuring device according to claim 1, characterized in that: It also includes an industrial computer, which includes a central processing unit and a human-computer interaction interface. The central processing unit is connected to the human-computer interaction interface and the control unit respectively.

7. The tire semi-finished product profile measuring device according to any one of claims 1 to 6, characterized in that: It also includes a detection sensor, which is installed on a side wall inside the U-shaped frame.

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