Molding rubber roller wear detection device and detection method

Abstract

The invention discloses a molding rubber roller wear detection device and detection method. The molding rubber roller wear detection device comprises a detector, a controller and a display, the detector comprises a gear rack linear module, a 3D laser sensor and a proximity switch; one rubber roller corresponds to one group of detectors; the gear rack linear module is mounted on an equipment shell of the equipment to be detected through a bolt; the 3D laser sensor is mounted on the gear rack linear module; the proximity switch is installed on the back face of a roller body of the rubber roller. According to the formed rubber roller wear detection device, the surface of the rubber roller is detected in real time, the 3D structure of the cylindrical surface of the running rubber roller and the surface data of the running rubber roller can be generated in real time, the test data is compared with a set range through the controller, the wear degree of the rubber roller can be monitored in real time, and early warning can be conducted in time; and an operator is prompted to replace the rubber roller.

Description

Technical Field

[0001] This invention belongs to the field of cigarette production technology, specifically relating to a device and method for detecting wear of molding rubber rollers. Background Technology

[0002] In cigarette production, the function of the tow stretching and relaxing device is to fully stretch the tow and eliminate curling. Its effectiveness directly affects product quality, especially by causing significant deviations in filter rod pressure drop. The tow stretching and relaxing device mainly consists of a brake roller group, an input roller group, a stretching roller group, a guide roller group, and wedge-grooved rollers. The motor-driven input roller group and the stretching roller group maintain a certain speed difference, with the stretching roller group moving faster than the input roller group. This longitudinal tension creates a longitudinal loosening effect on the tow belt. The input drive roller and the stretch drive roller are identical threaded rollers, which, through roller pressure and the threads, create a transverse loosening effect on the passing tow. Corresponding to the input drive roller and the stretch drive roller are the input driven roller and the stretch driven roller, which are rubber rollers made of special rubber materials. A cylinder drives these driven rollers to the working position, where they contact the corresponding drive rollers. After the roller group is pressed together, the tow is tensioned in the stretching zone. To maintain a small standard deviation of filter rod pressure drop, the roller pressure needs to be kept relatively high. During the extrusion process with the threaded roller, the service life of the rubber roller is shortened, and it may even be replaced every 3 months. The wear of the rubber roller also has a negative impact on the stability of the standard deviation of filter rod pressure drop.

[0003] Currently, the main method for addressing rubber hose wear is to manually rotate the rubber rollers while touching the surface roughness of the rollers when the molding machine is stopped. Only when the wear is felt to be significant are the rubber rollers replaced in pairs. This method relies on manual judgment, which is subjective. Furthermore, due to the limited inspection cycle, the wear situation cannot be monitored in real time, resulting in a lag.

[0004] To address the above problems, this invention is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a rubber roller wear detection device and method. This device can detect the surface of the rubber roller in real time, and intelligently prompt repair personnel to replace it when a certain cross-sectional dimension exceeds a set value. The device can also optimize equipment parameters based on the wear area and wear condition.

[0006] The first aspect of the present invention provides a molding rubber roller wear detection device, which is used in conjunction with a device to be tested, including a molding rubber roller. The molding rubber roller wear detection device includes a detector, a controller, and a display. The detector includes a gear and rack linear module, a 3D laser sensor, and a proximity switch. One set of detectors corresponds to one rubber roller.

[0007] The gear and rack linear module is bolted to the equipment housing (which can be a rubber roller mounting plate) of the device to be tested; the gear and rack linear module and the equipment housing of the filament stretching and relaxation device are rigidly connected, and the equipment housing of the filament stretching and relaxation device is the fixed base of the entire gear and rack linear module;

[0008] The 3D laser sensor is mounted on the gear and rack linear module;

[0009] The proximity switch is mounted on the back of the rubber roller.

[0010] The back side of the input driven roller and the extension driven roller refers to the side of the roller that does not contact the material and faces away from the material.

[0011] Preferably, the gear and rack linear module includes a guide rail body, a moving plate, and a servo motor;

[0012] The guide rail body has a toothed rack embedded inside, and the toothed rack is stationary relative to the guide rail body.

[0013] The servo motor is mounted on the movable plate, hence the movable plate is also called the servo motor mounting plate. The movable plate is the core moving component that supports the servo motor, and the movable plate can slide along the length of the guide rail body.

[0014] A gear is mounted on the output shaft of the servo motor, and the gear extends into the interior of the guide rail body and precisely meshes with the rack.

[0015] The 3D laser sensor is fixed to the moving plate by bolts and an L-shaped plate. The 3D laser sensor, the moving plate, and the servo motor are in the same moving unit, and the 3D laser sensor maintains a relative positional relationship with the guide rail body and the equipment housing of the device under test.

[0016] The kinematic relationships of the above components are as follows:

[0017] When the servo motor is powered on, it drives the gear on the output shaft to rotate. The gear meshes with the rack inside the guide rail body, and the rotational motion of the gear is converted into linear motion along the length of the rack. The gear is rigidly connected to the servo motor and the moving plate. Therefore, the linear motion of the gear directly drives the moving plate, the L-shaped plate, and the 3D laser sensor to move synchronously in a linear motion. During the movement, the guide rail body, the rack, and the device housing of the device under test remain fixed. The servo motor, the moving plate, the L-shaped plate, and the 3D laser sensor act as a single motion unit, reciprocating linearly along the guide rail body. When the motor drives the gear and rack to move, the sensor also moves linearly along with it, thereby enabling detection at different positions.

[0018] Preferably, the device to be tested, which includes a molding rubber roller, is a filament stretching and relaxing device. The molding rubber roller wear detection device is used in conjunction with the filament stretching and relaxing device. The filament stretching and relaxing device includes an input drive roller, a stretching drive roller, an input driven roller, and a stretching driven roller.

[0019] The input drive roller and the extension drive roller are threaded rollers, and the input driven roller and the extension driven roller are rubber rollers;

[0020] The molding rubber roller wear detection device is used to detect the wear of the input driven roller and the extension driven roller.

[0021] Preferably, the display is located above the operation panel of the device under test. The display is the human-machine interface output component of the molding rubber roller wear detection device, and its function is to display information and provide early warnings. On the one hand, it can display the initial surface data of the unused rubber roller, the surface data of the rubber roller being tested, and the calculated radial indentation depth and transverse area measurements in real time or in stages. On the other hand, when the controller determines that the wear degree of the rubber roller exceeds the specified requirements, it receives the early warning command from the controller and informs the operator through a prominent prompt (such as text alarm, indicator light flashing, pop-up reminder, etc.), prompting the operator to replace the rubber roller in time.

[0022] The controller is located on the device under test. It is the core computing and control unit of the rubber roller wear detection device, undertaking key functions such as data processing, logical judgment, and instruction execution. Specifically, firstly, it stores basic data, saving the initial 3D structure and surface data of the unused cylindrical surface of the rubber roller as a benchmark for wear detection. Secondly, it executes parameter settings, receiving and storing the equipment detection time period set by the operator, as well as the specified ranges for the radial indentation depth and lateral area of ​​the rubber roller—two judgment thresholds. Then, it performs data comparison calculations, retrieving the current 3D structure and surface data of the cylindrical surface of the rubber roller collected during the detection time period, comparing it with the initial benchmark data, and calculating the two measured values ​​for this detection: radial indentation depth and lateral area. Finally, it performs logical judgment and instruction output, comparing the two calculated measured values ​​with preset specified ranges; if the measured values ​​exceed the thresholds, it determines that the rubber roller wear is excessive and sends a warning instruction to the display.

[0023] In practice, the installation locations of the monitor and controller can be selected as needed, as long as the above functions can be achieved.

[0024] Preferably, the repeatability positioning accuracy is 0.04 mm using the gear and rack linear module;

[0025] The gear and rack linear module uses a 28mm linear stepper motor as its power source. It converts rotary motion into linear motion through a T-shaped lead screw and relies on linear guides to provide high-precision guidance, ultimately achieving minute and precise linear displacement control.

[0026] A second aspect of the present invention provides a method for detecting wear on a molding rubber roller, using the molding rubber roller wear detection device described in the first aspect of the present invention, comprising the following steps:

[0027] Step 1: Determine the 3D structure of the cylindrical surface of the unused rubber roller in its initial state, as well as the surface data of the unused rubber roller; the unused rubber roller is the pair of newly replaced rubber rollers, and the molding machine is in an empty running state (without loading auxiliary materials).

[0028] Step 2: In the controller, set the equipment detection time period for each run, determine the 3D structure of the cylindrical surface of the rubber roller for this run, and the surface data of the rubber roller for this run. Compare the surface data of the rubber roller for this run with the surface data of the unused rubber roller to obtain two measured values: radial indentation depth and transverse area of ​​the rubber roller for this run.

[0029] Step 3: In the controller, set two specified ranges for the radial indentation depth and lateral area of ​​the rubber roller. Compare the two measured values ​​of the radial indentation depth and lateral area of ​​the rubber roller with the set specified ranges. Only when the measured values ​​exceed the specified ranges does it indicate that the wear degree of the rubber roller exceeds the specified requirements. The controller will issue a warning on the display and prompt the operator to replace the rubber roller.

[0030] Preferably, step two further includes superimposing the 3D structure of the cylindrical surface of the rubber roller in this operation onto the 3D structure of the cylindrical surface in the initial state, and directly displaying the degree of local depression, which is convenient for operators to observe directly.

[0031] Preferably, in steps one and two, the method for determining the 3D structure of the cylindrical surface of the rubber roller includes: there are four metal bosses on the rubber roller. When the rubber roller rotates one revolution, the proximity switch will generate 4 pulse signals. The rotation frequency of the rubber roller can be obtained by calculating the pulse frequency, that is, the rotation frequency of the rubber roller = pulse frequency / 4.

[0032] A stepper motor drives a slide to move linearly, which in turn drives a 3D laser sensor to scan the surface of the rubber roller. The data is transmitted to the controller, which scans continuously for 2000 pulses at a length L, i.e., when the rubber roller rotates at a frequency of 500. The controller then averages the points on each cylindrical surface during the 500 revolutions to form a 3D structure of a segment of the cylindrical surface. The stepper motor then moves L until the entire working surface of the rubber roller has been scanned, forming a complete 3D model of the cylindrical surface. The data is recorded in a table, and then the system quickly returns to the initial state.

[0033] Preferably, in step two, when the proximity switch detects that the device is at the set minimum speed, the controller controls the gear and rack linear module to collect data and form the 3D structure of the cylindrical surface of the unit.

[0034] Preferably, in step two, the minimum speed is 85% of the equipment's rated speed.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. This invention provides a rubber roller wear detection device that performs real-time detection on the surface of the rubber roller. It generates a 3D structure of the cylindrical surface of the running rubber roller and provides surface data for the current operation. The controller compares the test data with a set range, allowing for real-time monitoring of the rubber roller's wear level and timely warnings to prompt operators to replace the rubber roller. When the measured value exceeds the specified range, it indicates that the rubber roller's wear level exceeds the required standard, and the controller displays a warning on the screen, prompting the operator to replace the rubber roller.

[0037] 2. This invention's molding rubber roller wear detection device can generate 3D structural diagrams of rubber roller wear for each shift and superimpose data points, which is beneficial for studying the relationship between roller pressure and suction resistance standard deviation. Through the data acquisition platform, data from the online filter rod physical index comprehensive testing station of the molding machine is collected (one rod is measured every 12 cycles). While ensuring that the rubber roller friction and wear meet requirements, the change in filter rod suction resistance standard deviation is observed by changing the roller pressure. Simultaneously, the wear cycle of the rubber roller under different roller pressure conditions can be observed, providing data reference for equipment spare parts management. Through the accumulation and analysis of wear data, this molding rubber roller wear detection device can establish how roller pressure parameters affect the suction resistance consistency of the processed material, thereby guiding the optimization of roller pressure parameters in production, reducing suction resistance standard deviation, and improving product qualification rate. Attached Figure Description

[0038] Figure 1 This is a schematic diagram showing the combined use of a rubber roller wear detection device and a filament stretching and relaxation device.

[0039] Figure 2 This is a schematic diagram of the structure of the gear and rack linear module 51 and the 3D laser sensor 52.

[0040] The names of the reference numerals in the figure description are: 1-Input drive roller, 2-Extension drive roller, 3-Input driven roller, 4-Extension driven roller, 5-Detector;

[0041] 51-Gear and rack linear module; 52-3D laser sensor;

[0042] 511-Guide rail body, 512-Moving plate, 513-Servo motor, 514-Rack and pinion, 515-L-shaped plate. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the embodiments.

[0044] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0045] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” to another element, it can be directly connected to the other element, or there may be an intermediate element. Furthermore, the term “connected” as used herein can include wireless connections.

[0046] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. The terms "inner," "upper," "lower," etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0049] Example

[0050] This invention relates to a molding rubber roller wear detection device, which is used in conjunction with a device to be tested containing a molding rubber roller. The molding rubber roller wear detection device includes a detector 5, a controller, and a display (the controller and display are not shown in the figure). The detector 5 includes a gear and rack linear module 51, a 3D laser sensor 52, and a proximity switch (not shown in the figure). One set of detectors 5 corresponds to one rubber roller.

[0051] The gear and rack linear module 51 is bolted to the equipment housing (which can be a rubber roller mounting plate) of the device to be tested; the gear and rack linear module and the equipment housing of the filament stretching and relaxation device are rigidly connected, and the equipment housing of the filament stretching and relaxation device is the fixed base of the entire gear and rack linear module;

[0052] The 3D laser sensor 52 is mounted on the gear and rack linear module;

[0053] The proximity switch is mounted on the back of the rubber roller.

[0054] The back side of the input driven roller and the extension driven roller refers to the side of the roller that does not contact the material and faces away from the material.

[0055] The gear and rack linear module 51 includes a guide rail body 511, a moving plate 512, and a servo motor 513.

[0056] The guide rail body has a rack 514 embedded inside, and the rack is stationary relative to the guide rail body.

[0057] The servo motor is mounted on the movable plate, hence the movable plate is also called the servo motor mounting plate. The movable plate is the core moving component that supports the servo motor, and the movable plate can slide along the length of the guide rail body.

[0058] A gear is mounted on the output shaft of the servo motor (the output shaft and gear are not shown in the figure), and the gear extends into the interior of the guide rail body and precisely meshes with the rack.

[0059] The 3D laser sensor is fixed to the movable plate by bolts and L-shaped plate 515. The 3D laser sensor, the movable plate, and the servo motor are in the same moving unit, and the 3D laser sensor maintains a relative positional relationship with the guide rail body and the equipment housing of the device to be tested.

[0060] The kinematic relationships of the above components are as follows:

[0061] When the servo motor is powered on, it drives the gear on the output shaft to rotate. The gear meshes with the rack inside the guide rail body, and the rotational motion of the gear is converted into linear motion along the length of the rack. The gear is rigidly connected to the servo motor and the moving plate. Therefore, the linear motion of the gear directly drives the moving plate, the L-shaped plate, and the 3D laser sensor to move synchronously in a linear motion. During the movement, the guide rail body, the rack, and the device housing of the device under test remain fixed. The servo motor, the moving plate, the L-shaped plate, and the 3D laser sensor act as a single motion unit, reciprocating linearly along the guide rail body. When the motor drives the gear and rack to move, the sensor also moves linearly along with it, thereby enabling detection at different positions.

[0062] The device to be tested, which includes a molding rubber roller, is a filament stretching and relaxing device. The molding rubber roller wear detection device is used in conjunction with the filament stretching and relaxing device. The filament stretching and relaxing device includes an input drive roller 1, a stretching drive roller 2, an input driven roller 3, and a stretching driven roller 4.

[0063] The input drive roller and the extension drive roller are threaded rollers, and the input driven roller and the extension driven roller are rubber rollers;

[0064] The molding rubber roller wear detection device is used to detect the wear of the input driven roller and the extension driven roller.

[0065] The display is located above the operation panel of the device under test. It serves as the human-machine interface output component of the rubber roller wear detection device, providing information display and early warning. On one hand, it can display, in real-time or in stages, the initial surface data of the unused rubber roller, the surface data of the rubber roller being tested, and the calculated radial indentation depth and transverse area measurements. On the other hand, when the controller determines that the wear degree of the rubber roller exceeds the specified requirements, it receives an early warning command from the controller and notifies the operator through prominent prompts (such as text alarms, flashing indicator lights, pop-up reminders, etc.), prompting the operator to replace the rubber roller promptly.

[0066] The controller is located on the device under test. It is the core computing and control unit of the rubber roller wear detection device, undertaking key functions such as data processing, logical judgment, and instruction execution. Specifically, firstly, it stores basic data, saving the initial 3D structure and surface data of the unused cylindrical surface of the rubber roller as a benchmark for wear detection. Secondly, it executes parameter settings, receiving and storing the equipment detection time period set by the operator, as well as the specified ranges for the radial indentation depth and lateral area of ​​the rubber roller—two judgment thresholds. Then, it performs data comparison calculations, retrieving the current 3D structure and surface data of the cylindrical surface of the rubber roller collected during the detection time period, comparing it with the initial benchmark data, and calculating the two measured values ​​for this detection: radial indentation depth and lateral area. Finally, it performs logical judgment and instruction output, comparing the two calculated measured values ​​with preset specified ranges; if the measured values ​​exceed the thresholds, it determines that the rubber roller wear is excessive and sends a warning instruction to the display.

[0067] In practice, the installation locations of the monitor and controller can be selected as needed, as long as the above functions can be achieved.

[0068] The repeatability positioning accuracy is 0.04 mm using the aforementioned gear and rack linear module.

[0069] The gear and rack linear module uses a 28mm linear stepper motor as its power source. It converts rotary motion into linear motion through a T-shaped lead screw and relies on linear guides to provide high-precision guidance, ultimately achieving minute and precise linear displacement control.

[0070] The servo motor moves by meshing with the rack inside the guide rail body through gears, while the L-shaped plate is fixed to the moving plate (servo motor mounting plate) with bolts. The 3D laser sensor is fixed to the L-shaped plate with bolts. The entire gear and rack linear module guide rail body is installed to the equipment housing with bolts.

[0071] The molding rubber roller wear detection method of this embodiment uses the aforementioned molding rubber roller wear detection device, and includes the following steps:

[0072] Step 1: Determine the 3D structure of the cylindrical surface of the unused rubber roller in its initial state, as well as the surface data of the unused rubber roller; the unused rubber roller is the pair of newly replaced rubber rollers, and the molding machine is in an empty running state (without loading auxiliary materials).

[0073] Step 2: In the controller, set the equipment detection time period for each run, determine the 3D structure of the cylindrical surface of the rubber roller for this run, and the surface data of the rubber roller for this run. Compare the surface data of the rubber roller for this run with the surface data of the unused rubber roller to obtain two measured values: radial indentation depth and transverse area of ​​the rubber roller for this run.

[0074] Step 3: In the controller, set two specified ranges for the radial indentation depth and lateral area of ​​the rubber roller. Compare the two measured values ​​of the radial indentation depth and lateral area of ​​the rubber roller with the set specified ranges. Only when the measured values ​​exceed the specified ranges does it indicate that the wear degree of the rubber roller exceeds the specified requirements. The controller will issue a warning on the display and prompt the operator to replace the rubber roller.

[0075] Step two also includes superimposing the 3D structure of the cylindrical surface of the rubber roller in this operation onto the initial 3D structure of the cylindrical surface, and directly displaying the degree of local depression, which is convenient for operators to observe directly.

[0076] In steps one and two, the method for determining the 3D structure of the cylindrical surface of the rubber roller includes: there are four metal bosses on the rubber roller. When the rubber roller rotates one revolution, the proximity switch will generate 4 pulse signals. The rotation frequency of the rubber roller can be obtained by calculating the pulse frequency, that is, the rotation frequency of the rubber roller = pulse frequency / 4.

[0077] A stepper motor drives a slide to move linearly, which in turn drives a 3D laser sensor to scan the surface of the rubber roller. The data is transmitted to the controller, which scans continuously for 2000 pulses at a length L, i.e., when the rubber roller rotates at a frequency of 500. The controller then averages the points on each cylindrical surface during the 500 revolutions to form a 3D structure of a segment of the cylindrical surface. The stepper motor then moves L until the entire working surface of the rubber roller has been scanned, forming a complete 3D model of the cylindrical surface. The data is recorded in a table, and then the system quickly returns to the initial state.

[0078] In step two, when the proximity switch detects that the device is at the set minimum speed, the controller controls the gear and rack linear module to collect data and form the 3D structure of the cylindrical surface of the class.

[0079] In step two, the minimum speed is 85% of the equipment's rated speed.

Claims

1. A device for detecting wear on a molding rubber roller, characterized in that, The molding rubber roller wear detection device is used in conjunction with the device to be tested, which includes a molding rubber roller. The molding rubber roller wear detection device includes a detector, a controller, and a display. The detector includes a gear and rack linear module, a 3D laser sensor, and a proximity switch. One set of detectors corresponds to one rubber roller. The gear and rack linear module is mounted on the equipment housing of the device to be tested by bolts. The 3D laser sensor is mounted on the gear and rack linear module; The proximity switch is mounted on the back of the rubber roller.

2. The molding rubber roller wear detection device according to claim 1, characterized in that, The gear and rack linear module includes a guide rail body, a moving plate, and a servo motor; The guide rail body has a toothed rack embedded inside, and the toothed rack is stationary relative to the guide rail body. The servo motor is mounted on the movable plate, and the movable plate can slide along the length of the guide rail body; A gear is mounted on the output shaft of the servo motor, and the gear extends into the interior of the guide rail body and meshes with the rack. The 3D laser sensor is fixed to the moving plate by bolts and an L-shaped plate. The 3D laser sensor, the moving plate, and the servo motor are in the same moving unit, and the 3D laser sensor maintains a relative positional relationship with the guide rail body and the equipment housing of the device under test. The kinematic relationships of the above components are as follows: When the servo motor is powered on, it drives the gear on the output shaft to rotate. The gear meshes with the rack inside the guide rail body, and the rotational motion of the gear is converted into linear motion along the length of the rack. The gear is rigidly connected to the servo motor and the moving plate. Therefore, the linear motion of the gear directly drives the moving plate, the L-shaped plate, and the 3D laser sensor to move linearly in sync. During the movement, the guide rail body, the rack, and the equipment housing of the device under test remain fixed. The servo motor, the moving plate, the L-shaped plate, and the 3D laser sensor act as a single motion unit, reciprocating linearly along the guide rail body.

3. The molding rubber roller wear detection device according to claim 1, characterized in that, The device to be tested, which includes a molding rubber roller, is a filament stretching and relaxing device. The molding rubber roller wear detection device is used in conjunction with the filament stretching and relaxing device. The filament stretching and relaxing device includes an input drive roller, a stretching drive roller, an input driven roller, and a stretching driven roller. The input drive roller and the extension drive roller are threaded rollers, and the input driven roller and the extension driven roller are rubber rollers; The molding rubber roller wear detection device is used to detect the wear of the input driven roller and the extension driven roller.

4. The molding rubber roller wear detection device according to claim 1, characterized in that, The display is located above the operation panel of the device under test. The display is the human-machine interface output component of the molding rubber roller wear detection device, and its function is to display information and provide early warning prompts. The controller is located on the device to be tested. The controller is the core computing and control unit of the molding rubber roller wear detection device, and undertakes the key functions of data processing, logical judgment and instruction execution.

5. The molding rubber roller wear detection device according to claim 1, characterized in that, The repeatability positioning accuracy is 0.04 mm using the aforementioned gear and rack linear module. The gear and rack linear module uses a 28mm linear stepper motor as its power source, converts rotational motion into linear motion, and relies on linear guides for guidance to achieve linear displacement control.

6. A method for detecting wear on a molding rubber roller, characterized in that, The wear detection device for molding rubber rollers according to any one of claims 1-5 includes the following steps: Step 1: Determine the 3D structure of the cylindrical surface of the unused rubber roller in its initial state, as well as the surface data of the unused rubber roller; Step 2: In the controller, set the equipment detection time period for each run, determine the 3D structure of the cylindrical surface of the rubber roller for this run, and the surface data of the rubber roller for this run. Compare the surface data of the rubber roller for this run with the surface data of the unused rubber roller to obtain two measured values: radial indentation depth and transverse area of ​​the rubber roller for this run. Step 3: In the controller, set two specified ranges for the radial indentation depth and lateral area of ​​the rubber roller. Compare the two measured values ​​of the radial indentation depth and lateral area of ​​the rubber roller with the set specified ranges. Only when the measured values ​​exceed the specified ranges does it indicate that the wear degree of the rubber roller exceeds the specified requirements. The controller will issue a warning on the display and prompt the operator to replace the rubber roller.

7. The method for detecting wear of molding rubber rollers according to claim 6, characterized in that, Step two also includes superimposing the 3D structure of the cylindrical surface of the rubber roller in this operation onto the initial 3D structure of the cylindrical surface, and directly displaying the degree of local depression, which is convenient for operators to observe directly.

8. The method for detecting wear of molding rubber rollers according to claim 6, characterized in that, In steps one and two, the method for determining the 3D structure of the cylindrical surface of the rubber roller includes: there are four metal bosses on the rubber roller. When the rubber roller rotates one revolution, the proximity switch will generate 4 pulse signals. The rotation frequency of the rubber roller can be obtained by calculating the pulse frequency, that is, the rotation frequency of the rubber roller = pulse frequency / 4. A stepper motor drives a slide to move linearly, which in turn drives a 3D laser sensor to scan the surface of the rubber roller. The data is transmitted to the controller, which scans continuously for 2000 pulses at a length L, i.e., when the rubber roller rotates at a frequency of 500. The controller then averages the points on each cylindrical surface during the 500 revolutions to form a 3D structure of a segment of the cylindrical surface. The stepper motor then moves L until the entire working surface of the rubber roller has been scanned, forming a complete 3D model of the cylindrical surface. The data is recorded in a table, and then the system quickly returns to the initial state.

9. The method for detecting wear of molding rubber rollers according to claim 6, characterized in that, In step two, when the proximity switch detects that the device is at the set minimum speed, the controller controls the gear and rack linear module to collect data and form the 3D structure of the cylindrical surface of the unit.

10. The method for detecting wear of molding rubber rollers according to claim 6, characterized in that, In step two, the minimum speed is 85% of the equipment's rated speed.

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