A metrological length measurement control method

Abstract

The application discloses a length measurement control method, which provides two input modes of external input mode and code value input mode, realizes real-time positioning of products, obtains the moving distance of the products beyond the preset marking position, and realizes length measurement control of the products beyond the preset marking position; when the length of the moving distance of the products reaches a plurality of preset distance lengths in sequence, corresponding marks are marked on the products in sequence, and then corresponding interval and position information are marked on the set length of the strip-shaped or bar-shaped products, so that the strip-shaped or bar-shaped products are conveniently managed and processed, and production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of automation control technology, and in particular to a method for measuring and controlling length. Background Technology

[0002] In the production and manufacturing process, to meet the requirements of processing precision, technological flow, and automated production, some products often need to be accurately positioned at specific locations before subsequent processing or operations can be performed. Therefore, the length of these products is usually measured and controlled, and corresponding markings are made on the products based on the length measurement and control results to facilitate subsequent processing. For example, in the production of label paper, after positioning and marking at the appropriate length, the label paper can not only be cut to the preset size through mark recognition, but also the corresponding patterns can be marked or printed at the corresponding positions on the label paper through precise positioning of the marks.

[0003] However, since some strip-shaped and strip-shaped products are usually present in a continuous form during production lines or transportation, it is difficult to find a clear start and end position. Moreover, the length of strip-shaped and strip-shaped products usually exceeds the measurement range of traditional length measuring equipment, which leads to difficulties in measuring and controlling the length of strip-shaped and strip-shaped products, and makes it inconvenient to locate and identify the products.

[0004] Therefore, it is necessary to provide a measurement length control method to solve the technical problem of marking the corresponding spacing and position information on products such as strips or bars. Summary of the Invention

[0005] To address the technical problem of difficulty in positioning and marking strip-shaped and strip-shaped products in the prior art, this invention provides a method for controlling measurement length.

[0006] A method for controlling length measurement includes the following steps: S1: Select the length control mode according to the actual situation of the product; wherein, the length control mode includes external input mode and coded value input mode; S2: According to the selected length control mode, perform real-time positioning of the product and obtain the moving distance of the product beyond the preset marking position; when the length of the product's moving distance reaches multiple preset distance lengths in sequence, mark the corresponding mark on the product at the corresponding position one by one; wherein, the mark carries the spacing and position information of the moving distance of the product beyond the preset marking position; S3: Record the number of marked marks on the product and the length of the moving distance to obtain the cumulative moving distance of the product; S4: When the cumulative moving distance of the product and the number of marks both increase to the preset maximum value, restore the recorded cumulative moving distance of the product and the number of marks to the reset value, and repeat steps S2 and S3.

[0007] Furthermore, before step S1, there is also step S0: obtain and check whether the cumulative moving distance of the current product and the number of tags have both increased to the preset maximum value. If so, restore the cumulative moving distance of the product and the number of tags to the reset value; otherwise, proceed to step S1.

[0008] Furthermore, the external input mode specifically involves: positioning the product using a positioning device and obtaining the distance the product moves beyond a preset marking position; when the length of the product's movement distance successively reaches multiple preset distance lengths, triggering an external device to input a corresponding marking signal; and then, through a controller, obtaining the spacing and position information carried by the marking signal and driving a laser marking device to sequentially mark the corresponding positions on the product.

[0009] Furthermore, the positioning device includes a control system and a photoelectric sensor and an encoder electrically connected to the control system. The photoelectric sensor is located at the preset mark position and is used to acquire trigger information when the product exceeds the preset mark position. The encoder is used to detect the moving distance of the product beyond the preset mark position. The control system acquires the moving distance of the product beyond the preset mark position based on the detection results of the photoelectric sensor and the encoder and transmits it to an external device.

[0010] Furthermore, the external device is also used to record the number of markings on the product and the length of the travel distance, and to obtain the cumulative travel distance of the product; when the cumulative travel distance of the product and the number of markings both reach the maximum value, the external device is triggered to input a corresponding reset signal, and the controller resets the cumulative travel distance and the number of markings to the reset value according to the reset signal.

[0011] Furthermore, the encoding value input mode specifically involves: using an encoder to record the product's position movement information and sending it to a controller; the controller obtains the product's movement distance beyond the preset marking position based on the position movement information recorded by the encoder, and controls a laser marking device to mark the corresponding mark on the product one by one when the product's movement distance reaches multiple preset distance lengths in sequence.

[0012] Furthermore, the controller is also used to record the number of markings on the product and the length of the moving distance, and obtain the cumulative moving distance of the product; when the cumulative moving distance of the product and the number of markings both reach the maximum value, the controller resets the cumulative moving distance and the number of markings to the reset value respectively.

[0013] Furthermore, the controller is electrically connected to a display screen via a serial port, and the display screen is used for, but is not limited to, selecting the length control mode, preset marking position, preset distance length, reset value, and modifying the maximum value parameter in the controller.

[0014] Furthermore, the identifier is a scale value symbol corresponding to a preset distance, and the number of the identifiers corresponds one-to-one with the scale value represented by the scale value symbol.

[0015] The beneficial effects of this invention are as follows: The measurement length control method disclosed in this invention provides two input modes: external input mode and coded value input mode. It performs real-time positioning of the product and obtains the moving distance of the product beyond the preset marking position, thereby realizing the length measurement control of the product beyond the preset marking position. When the length of the product's moving distance successively reaches multiple preset distance lengths, corresponding marks are marked on the corresponding positions above the product one by one. This enables the marking of the corresponding spacing and position information on the set length of strip or bar products, facilitating the management and processing of strip products and improving production efficiency.

[0016] Meanwhile, by offering two input modes—external input mode and coded value input mode—it meets the needs of various usage scenarios, providing more comprehensive, accurate, and flexible product positioning and distance calculation services. Furthermore, by adjusting parameters such as preset distance length, preset maximum value, and reset value, the display can mark multiple positions or intervals of markers, expanding its application range. Attached Figure Description

[0017] Figure 1 A flowchart of the steps of a measurement length control method provided by this utility model; Figure 2 A schematic diagram of the principle structure of a measurement length control method provided by this utility model; Figure 3 The present invention provides a principle flowchart of a length measurement and control method.

[0018] Attached Figure Labels

[0019] 1. Controller; 2. Laser marker; 3. Encoder; 4. Display screen. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] refer to Figure 1 , Figure 2As shown, the present invention provides a measurement length control method applicable to the length measurement control of strip or strip products and the marking of their spacing and position information.

[0022] Specifically, the method includes step S1: selecting a length control mode based on the actual product situation; wherein the length control mode includes an external input mode and an coded value input mode. The external input mode is suitable for real-time interaction, promptly acquiring location information provided by the user and providing specific calculation results. This allows for rapid response to user needs, providing real-time positioning and distance calculation services. The coded value input mode is suitable for batch processing of location information from multiple products, integrating the location information of multiple products for calculation and analysis. Through batch processing and comprehensive analysis, more comprehensive and accurate positioning and distance calculation results can be obtained. Both modes can perform personalized positioning and distance calculations according to user needs, meeting user positioning requirements for different products and scenarios, and providing more flexible and customized services. S2: Based on the selected length control mode, perform real-time positioning of the product and obtain the moving distance of the product beyond the preset marking position; when the length of the product's moving distance successively reaches multiple preset distance lengths, mark the corresponding position on the product one by one; wherein, the marking carries the spacing and position information of the moving distance of the product beyond the preset marking position; S3: Record the number of markings on the product and the length of the moving distance to obtain the cumulative moving distance of the product; S4: When the cumulative moving distance of the product and the number of markings both increase to the preset maximum value, restore the recorded cumulative moving distance of the product and the number of markings to the reset value, and repeat steps S2 and S3.

[0023] Preferably, in this embodiment, the marking is a scale value symbol corresponding to a preset distance length, and the number of markings corresponds one-to-one with the scale value represented by the scale value symbol. For example, if it is necessary to mark the product every 1 meter on every 100 meters of product, then the preset distance lengths are set to 1 meter, 2 meters...100 meters. When the product moves 1 meter beyond the preset marking position, the product will be marked with a scale value symbol corresponding to the preset distance length. The preset maximum number of markings is 100, the preset maximum cumulative movement distance is 100 meters, and the reset value of the cumulative movement distance is 0 meters, and the reset value of the number of markings is 0. The product will be marked with the corresponding scale value symbol representing the scale value of 1 meter, 2 meters...100 meters every 1 meter until the product moves a cumulative total of 100 meters beyond the preset marking position, then the cumulative movement distance and the number of markings are restored to the reset value, and a new round of product length measurement and marking begins.

[0024] Specifically, the external input mode is as follows: the product is located by a positioning device and the distance the product moves beyond the preset marking position is obtained. When the length of the product's moving distance reaches multiple preset distance lengths in sequence, the external device is triggered to input a corresponding marking signal. After the spacing and position information carried by the marking signal are obtained by a controller 1, a laser marking device 2 is driven to mark the corresponding positions on the product in sequence.

[0025] By using a positioning device to locate the product and obtain its movement distance, the length of the product's movement beyond the preset marking position can be accurately measured, ensuring the accuracy and consistency of subsequent marking to meet the needs of fine marking. The external input mode enables real-time interaction, promptly acquiring user-provided location information and providing specific calculation results. By simply setting the corresponding preset distance length as needed, multiple marks with different positions or spacings can be marked. When the product's movement distance successively reaches multiple preset distance lengths, a marking signal is triggered in real time, immediately responding and driving the laser marking device to perform the marking. This ensures the synchronization of the marking process with product movement, improving efficiency.

[0026] The external device is also used to record the number of markings on the product and the length of the travel distance, and to obtain the cumulative travel distance of the product. When the cumulative travel distance of the product and the number of markings both reach their maximum values, the external device is triggered to input a corresponding reset signal, and the controller resets the cumulative travel distance and the number of markings to their reset values ​​according to the reset signal.

[0027] Preferably, the positioning device includes a control system and a photoelectric sensor and an encoder electrically connected to the control system. The photoelectric sensor is located at the preset marking position and is used to acquire trigger information when the product exceeds the preset marking position. The encoder is used to detect the moving distance of the product beyond the preset marking position. The control system acquires the moving distance of the product beyond the preset marking position based on the detection results of the photoelectric sensor and the encoder and transmits it to an external device. When the product moves and triggers the photoelectric sensor, the control system acquires the initial position information of the triggered product and starts activating the encoder 3. At the same time, the control system continuously acquires the moving distance of the target product after exceeding the preset marking position based on the number of pulses of the encoder 3, thereby realizing real-time positioning of the product and acquiring the moving distance of the product beyond the preset marking position, which is then transmitted to an external device, thereby triggering the external device to generate a marking signal.

[0028] The specific encoding value input mode is as follows: an encoder is used to record the position movement information of the product and send it to a controller 1; the controller 1 obtains and records the position movement information according to the encoding value of the encoder 3, and then obtains the length of the movement distance of the product that exceeds the preset marking position, that is, obtains the length of the movement distance of the product that exceeds the preset marking position, and when the length of the product movement distance reaches multiple preset distance lengths in sequence, controls a laser marking device 2 to mark the corresponding mark on the product one by one.

[0029] Specifically, before the product begins to move, the encoder is initialized to record the product's initial position and generates a certain number of pulses based on the product's movement. The encoder records the number of pulses output, i.e., the encoded value. The encoded value output by encoder 3 is compared with the encoded value at a preset marked position. Once the encoded value of the preset marked position is reached or approached, the product is considered to have moved to the encoded value of the preset marked position. Subsequently, based on the encoded value of encoder 3, the product's position movement information is further obtained, thereby determining the distance the product has moved beyond the preset marked position.

[0030] The controller 1 is also used to record the number of markings on the product and the length of the moving distance, and to obtain the cumulative moving distance of the product; when the cumulative moving distance of the product and the number of markings both reach the maximum value, the controller resets the cumulative moving distance and the number of markings to the reset value respectively.

[0031] The controller 1 is electrically connected to a display screen 4 via a serial port. The display screen 4 is used, but is not limited to, for selecting the length control mode, preset marking position, preset distance length, reset value, and modifying the maximum value parameter of the controller 1. Through the serial port connection, the display screen 4 provides an interactive interface for setting the parameters and selecting the operation mode of the controller 1. Users can flexibly adjust and configure the operating parameters of the controller 1 through the operation of the display screen 4 to meet specific application requirements.

[0032] Preferably, the encoder 3 and controller 1 used in the external input mode and the encoded value input mode can be the same encoder 3 and controller 1, which saves the number of devices and reduces costs.

[0033] refer to Figure 3As shown, the program implementation principle of the measurement length control method provided by this invention is as follows: After program initialization, the program runs normally. During runtime, it checks in real time the difference between the cumulative moving distance and the number of markings in the program and the corresponding preset maximum value and reset value to determine whether a reset is needed. Then, the length control mode is selected and processed according to the user-selected length control mode. When a marking signal is received from an external device or when the encoder detects that the product has reached the preset distance, the system sends the corresponding position information to the laser marking machine 2, causing the laser marking machine 2 to mark the product by pulling up or down according to the position information. After marking, the current position information is recorded to facilitate the increment for the next marking. When the increment reaches the user-set maximum value, it resets to the initial state and the cycle begins again.

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A method for controlling length measurement, characterized in that, Includes the following steps: S1: Select the length control mode according to the actual situation of the product; wherein, the length control mode includes external input mode and encoded value input mode; S2: Based on the selected length control mode, the product is located in real time and the distance the product moves beyond the preset marking position is obtained; when the length of the product's movement reaches multiple preset distance lengths in sequence, corresponding marks are marked on the corresponding positions above the product one by one; wherein, the marks carry the spacing and position information of the distance the product moves beyond the preset marking position; the marks correspond one-to-one with the preset distance lengths; S3: Record the number of markings on the product and the length of the moving distance to obtain the cumulative moving distance of the product; S4: When the cumulative moving distance of the product and the number of tags both increase to the preset maximum value, restore the recorded cumulative moving distance of the product and the number of tags to the reset value, and repeat steps S2 and S3.

2. The measurement length control method according to claim 1, characterized in that, Before step S1, there is also step S0: obtain and check whether the cumulative moving distance of the current product and the number of tags have both increased to the preset maximum value. If so, restore the cumulative moving distance of the product and the number of tags to the reset value; otherwise, proceed to step S1.

3. The measurement length control method according to claim 1, characterized in that, The external input mode is as follows: the product is located by a positioning device and the distance the product moves beyond the preset marking position is obtained. When the length of the product's moving distance reaches multiple preset distance lengths in sequence, the external device is triggered to input a corresponding marking signal. After the spacing and position information carried by the marking signal are obtained by a controller, a laser marking device is driven to mark the corresponding positions on the product in sequence.

4. The measurement length control method according to claim 3, characterized in that, The positioning device includes a control system and a photoelectric sensor and an encoder electrically connected to the control system. The photoelectric sensor is located at the preset mark position and is used to acquire trigger information when the product exceeds the preset mark position. The encoder is used to detect the distance the product moves beyond the preset mark position. The control system obtains the distance the product moves beyond the preset mark position based on the detection results of the photoelectric sensor and the encoder and transmits it to an external device.

5. The measurement length control method according to claim 3, characterized in that, The external device is also used to record the number of markings on the product and the length of the travel distance, and to obtain the cumulative travel distance of the product; when the cumulative travel distance of the product and the number of markings both reach the maximum value, the external device is triggered to input a corresponding reset signal, and the controller resets the cumulative travel distance and the number of markings to the reset value according to the reset signal.

6. The measurement length control method according to claim 1, characterized in that, The specific encoding value input mode is as follows: an encoder is used to record the position movement information of the product and send it to a controller; the controller obtains the movement distance of the product beyond the preset marking position according to the position movement information recorded by the encoder, and when the length of the product movement distance reaches multiple preset distance lengths in sequence, it controls a laser marking device to mark the corresponding mark on the product one by one at the corresponding position.

7. The measurement length control method according to claim 6, characterized in that, The controller is also used to record the number of markings on the product and the length of the moving distance, and to obtain the cumulative moving distance of the product; when the cumulative moving distance of the product and the number of markings both reach the maximum value, the controller resets the cumulative moving distance and the number of markings to the reset value respectively.

8. A measurement length control method according to claim 5 or 7, characterized in that, The controller is electrically connected to a display screen via a serial port. The display screen is used, but is not limited to, selecting the length control mode, preset marking position, preset distance length, reset value, and modifying the maximum value parameter in the controller.

9. The measurement length control method according to claim 1, characterized in that, The identifier is a scale value symbol corresponding to a preset distance, and the number of the identifiers corresponds one-to-one with the scale value represented by the scale value symbol.

Images