A control system and control method for a contact tabulator

Abstract

This invention discloses a control system and method for a contact-type paper counting machine, relating to the field of automation control technology. The system includes: a tray servo, a module servo, a negative pressure pump, a counting module, a pressing cylinder, a detection sensor, a PLC controller, and a touchscreen. The tray servo and module servo are used to drive the counting tray to rotate and lift, respectively. The negative pressure pump provides a negative pressure vacuum for the rotating paper tray. The counting module counts the paper being separated by the counting tray. The pressing cylinder is used to press the paper after it has reached its position. The detection sensor detects the position and status of the product, the pressing cylinder, the module servo, and the counting tray. The PLC controller controls the counting tray to automatically complete the counting of products. The touchscreen provides a human-machine interface. This invention enables the contact-type paper counting machine to automatically and quickly count paper products, ensuring not only accurate counting but also preventing product damage and contamination.

Description

Technical Field

[0001] This invention relates to the field of automation control technology, specifically to a control system and control method for a contact paper counting machine. Background Technology

[0002] The statements in this section are provided only as background information in connection with this disclosure and may not constitute prior art.

[0003] In the printing and minting industry, it is often necessary to ensure the correct quantity of paper products. In the traditional way, the quantity of products is usually counted manually. Manual counting is not only inefficient, but also has a low accuracy rate. Later, a batch of automated paper counting equipment was introduced from abroad, but these devices are often expensive and have a long after-sales maintenance cycle, making it difficult to meet the needs of actual production.

[0004] Furthermore, in the face of the increasingly severe international situation, the printing and minting industry urgently needs a batch of domestically produced automatic paper counting equipment with independent intellectual property rights to replace it. Summary of the Invention

[0005] The purpose of this invention is to address the problem that in current traditional methods, the counting of products is usually done manually, which is not only inefficient but also has a low accuracy rate. This invention provides a control system and method for a contact paper counting machine, which enables the contact paper counting machine to automatically and quickly count paper products. After counting, not only is the count accurate, but the products are also guaranteed to be undamaged and uncontaminated, thus solving the aforementioned problems.

[0006] The technical solution of the present invention is as follows:

[0007] A control system for a contact-type paper counting machine includes: a tray servo, a module servo, a negative pressure pump, a counting module, a pressing cylinder, a detection sensor, a PLC controller, and a touch screen;

[0008] The disk servo and module servo are used to drive the paper disk to rotate and lift, respectively.

[0009] The negative pressure pump provides negative pressure vacuum for the rotating paper trays to separate the paper.

[0010] The counting module counts the paper dispensed from the paper tray.

[0011] The pressing cylinder is used to press the product after it is in place, preventing the product from moving when the counting tray is being cleared.

[0012] The detection sensor is used to detect the position and status of the product, the pressing cylinder, the module servo, and the counting tray;

[0013] The PLC controller is the core of the control system, used to receive and send instruction signals to control the paper tray to automatically complete the product counting.

[0014] The touchscreen serves as the monitoring center of the control system, providing a human-machine interface.

[0015] Furthermore, the disk servo includes:

[0016] Disc servo motor and disc servo driver;

[0017] The disk servo driver drives the paper disks to rotate according to the instruction signals sent by the PLC controller.

[0018] The module servo includes:

[0019] Module servo motors and module servo drivers;

[0020] The module servo driver drives the paper trays to move up and down according to the instruction signals sent by the PLC controller.

[0021] Furthermore, the negative pressure pump provides negative pressure gas to the counting paper tray, and the negative pressure gas acts on the paper through the paper separating air channel of the counting paper tray, achieving paper adsorption and separation as the counting paper tray rotates.

[0022] Furthermore, the counting module includes:

[0023] Vacuum sensor and counting box;

[0024] The vacuum sensor is used to detect the negative pressure value of the paper separation air channel of the paper tray;

[0025] The counting box is used to process the detected negative pressure value, then count it according to the set threshold, and send the count value to the PLC controller through the RS232 serial port.

[0026] Furthermore, the detection sensor includes:

[0027] Product arrival detection sensor, module-origin sensor, module-high / low limit sensor, press cylinder action / reset detection magnetic ring, and distance sensor;

[0028] The product arrival detection sensor is used to detect whether the product has reached the working range of the paper tray;

[0029] The module-origin sensor is a normally open contact used to detect the origin of the module servo motor, which facilitates origin return before positioning control of the module servo motor;

[0030] The module-high / low limit sensor includes a module-high limit sensor and a module-low limit sensor; the module-high limit sensor and the module-low limit sensor are normally closed contacts, which are used to detect the high and low limit positions of the module servo motor, respectively, to prevent the module servo motor from moving beyond the specified area and causing equipment damage.

[0031] The magnetic rings for detecting the action / reset of the pressing cylinder are used to detect whether the action / reset of the pressing cylinder is completed.

[0032] The distance sensor is used to detect the floating distance of the counting tray in real time. The PLC controller can use the relationship between the floating distance and the set threshold to control the movement and stopping of the module servo motor, thereby adjusting the pressure when the counting tray counts products.

[0033] Furthermore, in the control of the actuators of the contact-type paper counting machine, the start and stop of the negative pressure pump is controlled by a contactor, and the on and off of the contactor is controlled by a relay;

[0034] The action / reset of the pressing cylinder is controlled by a solenoid valve, and the opening and closing of the solenoid valve is also controlled by a relay;

[0035] The control of the plate servo driver and the module servo driver is achieved by using high-speed pulses and direction signals output from the PLC controller.

[0036] Furthermore, it also includes: electrical control box;

[0037] The disk servo driver, module servo driver, counting box, and PLC controller are all placed in the electrical control box.

[0038] Furthermore, the electrical control box uses AC220V input to power the disk servo driver, module servo driver, and switching power supply, respectively.

[0039] The switching power supply converts AC220V to DC24V and DC5V. The DC24V provides power to the PLC controller, touch screen, detection sensors, and solenoid valves, while the DC5V provides power to the counting box.

[0040] A control method for a contact paper counting machine, based on the aforementioned control system for a contact paper counting machine, includes:

[0041] Step S1: Power-on initialization;

[0042] Step S2: Parameter settings and mode selection;

[0043] Step S3: Place the products in place and start counting the products;

[0044] Step S4: After clearing the data, the module is positioned back to the origin.

[0045] Further, step S1 includes:

[0046] Control the reset of intermediate variables, the initialization of the counting threshold of the counting box, and the return of the module to the origin upon power-on;

[0047] Step S2 includes: setting the rotation speed of the paper tray, the lifting speed of the module servo, and the rapid positioning speed of the module servo on the touch screen, and selecting the control mode and the clearing mode.

[0048] The control modes include: manual mode and automatic mode; the manual mode is used to individually control the movement of the pressing cylinder, module servo, and counting tray during the debugging process, while the automatic mode is used to automatically count the products after they are detected to be in place.

[0049] The counting modes include: fixed value mode and non-fixed value mode; wherein, the fixed value mode compares the count with a set value after the product count is completed to determine whether the product count is qualified, while the non-fixed value mode only performs the function of counting the product.

[0050] Step S3 includes:

[0051] After the products are placed in place, the paper counting machine automatically begins counting the products. First, the pressing cylinder holds the products down while the negative pressure pump is activated. Then, the module servo drives the counting tray to descend rapidly. When the distance detected by the distance sensor is less than the set threshold, the module servo pauses the descent and starts rotating the counting tray. Next, based on the counting value of the paper tray and the detection distance of the distance sensor, the module servo repeats the motion and stop actions, continuously following the rotation of the counting tray to absorb and separate the paper until the counting of the products is completed.

[0052] Step S4 includes:

[0053] Once the product count is complete, immediately stop the paper tray rotation and module servo descent, and simultaneously turn off the negative pressure pump; then, release the pressing cylinder and wait for the product to be taken away; when the product arrival detection sensor does not detect the product, the module will quickly return to its original position to prepare for the next product count.

[0054] Compared with existing technologies, the advantages of this invention are:

[0055] A control system and control method for a contact paper counting machine enable the contact paper counting machine to automatically and quickly count paper products. After counting, it not only ensures the accuracy of the count but also ensures that the products are undamaged and uncontaminated. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the overall shape of the control system of a contact-type paper counting machine;

[0057] Figure 2 This is a block diagram of the control system of a contact-type paper counting machine;

[0058] Figure 3 This is a power distribution schematic diagram of the control system for a contact-type paper counting machine.

[0059] Figure 4 This is a wiring diagram of a PLC controller in the control system of a contact-type paper counting machine.

[0060] Figure 5 A flowchart of a control method for a contact-type paper counting machine;

[0061] Figure 6 This is a flowchart of the control method in Example 2, taking a fixed count of 1000 in automatic mode as an example.

[0062] Attached reference numerals: 1-Touch screen, 2-Counting paper tray support, 3-Pressing cylinder, 4-Guide shaft, 5-Vacuum sensor, 6-Product arrival detection sensor, 7-Electrical control box, 8-Module servo motor, 9-Panel servo motor, 10-Spring, 11-Distance sensor, 12-Distance detection stop, 13-Module guide rail, 14-Floating plate, 15-Counting paper tray, 16-Product. Detailed Implementation

[0063] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0065] Example 1

[0066] In the printing and minting industry, it is often necessary to ensure the correct quantity of paper products. In the traditional method, the quantity of products is usually counted manually. Manual counting is not only inefficient, but also has a low accuracy rate. Later, a number of automated paper counting machines were introduced from abroad, but these machines are often expensive and have long after-sales maintenance cycles, making it difficult to meet the needs of actual production. In addition, facing the increasingly severe international situation, the printing and minting industry also urgently needs a batch of domestically produced automated paper counting machines with independent intellectual property rights to replace them.

[0067] This embodiment addresses the aforementioned problems by proposing a control system and method for a contact paper counting machine. This system enables the contact paper counting machine to automatically and quickly count paper products. After counting, it not only ensures the accuracy of the count but also guarantees that the products are undamaged and uncontaminated.

[0068] Please see Figure 1-2 A control system for a contact-type paper counting machine includes: a plate servo, a module servo, a negative pressure pump, a counting module, a pressing cylinder 3, a detection sensor, a PLC controller, and a touch screen 1;

[0069] The plate servo and module servo are used to drive the paper tray 15 to rotate and lift.

[0070] The negative pressure pump provides negative pressure vacuum for the rotating paper tray 15 to separate the paper.

[0071] The counting module counts the 15 portions of paper on the counting paper tray;

[0072] The pressing cylinder 3 is used to press the product 16 after it is in place, to prevent the product 16 from moving when the counting tray 15 is counting.

[0073] The detection sensor is used to detect the position and status of product 16, pressing cylinder 3, module servo, and counting tray 15;

[0074] The PLC controller is the core of the control system, used to receive and send command signals, and control the paper tray 15 to automatically complete the counting of products 16; the wiring diagram of the PLC controller is as follows. Figure 4 As shown;

[0075] The touch screen 1 is the monitoring center of the control system and provides a human-machine interface. Preferably, the touch screen 1 is connected to the PLC controller via a network cable to set motion control parameters and display the clear values ​​of product 16 in real time.

[0076] In this embodiment, specifically, the disk servo includes:

[0077] Disc servo motor 9 and disc servo driver;

[0078] The disk servo driver drives the paper disk 15 to rotate according to the instruction signal sent by the PLC controller.

[0079] The module servo includes:

[0080] Module servo motor 8 and module servo driver;

[0081] The module servo driver drives the paper tray 15 to move up and down according to the instruction signal sent by the PLC controller.

[0082] In this embodiment, specifically, the negative pressure pump provides negative pressure gas to the counting paper tray 15. The negative pressure gas acts on the paper through the paper separating air channel of the counting paper tray 15, and the paper is separated by adsorption as the counting paper tray 15 rotates.

[0083] In this embodiment, specifically, the counting module includes:

[0084] Vacuum sensor 5 and counting box;

[0085] The vacuum sensor 5 is used to detect the negative pressure value of the paper separating air channel of the paper tray 15;

[0086] The counting box is used to process the detected negative pressure value, then count it according to the set threshold, and send the count value to the PLC controller through the RS232 serial port.

[0087] In this embodiment, specifically, the detection sensor includes:

[0088] Product arrival detection sensor 6, module-origin sensor, module-high / low limit sensor, press cylinder 3 action / reset detection magnetic ring and distance sensor 11;

[0089] The product arrival detection sensor 6 is used to detect whether the product 16 has reached the working range of the counting tray 15;

[0090] The module-origin sensor is a normally open contact used to detect the origin of the module servo motor 8, which facilitates origin return before positioning control of the module servo motor 8.

[0091] The module-high / low limit sensor includes a module-high limit sensor and a module-low limit sensor; the module-high limit sensor and the module-low limit sensor are normally closed contacts, which are used to detect the high and low limit positions of the module servo motor 8, respectively, to prevent the module servo motor 8 from moving beyond the specified area and causing equipment damage;

[0092] The magnetic ring for detecting the action / reset of the pressing cylinder 3 is used to detect whether the action / reset of the pressing cylinder 3 is completed.

[0093] The distance sensor 11 is used to detect the floating distance of the counting tray 15 in real time. The PLC controller can use the relationship between the floating distance and the set threshold to control the movement and stop of the module servo motor 8, thereby adjusting the pressure of the counting tray 15 when counting products 16.

[0094] In this embodiment, specifically, in the control of the actuators of the contact paper counting machine, the start and stop of the negative pressure pump is controlled by a contactor, and the on and off of the contactor is controlled by a relay;

[0095] The action / reset of the pressing cylinder 3 is controlled by a solenoid valve, and the opening and closing of the solenoid valve is also controlled by a relay;

[0096] The control of the plate servo driver and the module servo driver is achieved by using high-speed pulses and direction signals output from the PLC controller.

[0097] In this embodiment, specifically, it also includes: electrical control box 7;

[0098] The disk servo driver, module servo driver, counting box, and PLC controller are all placed in the electrical control box 7.

[0099] In this embodiment, for details, please refer to... Figure 3 The electrical control box 7 uses AC220V input, which powers the disk servo driver, module servo driver and switching power supply respectively;

[0100] The switching power supply converts AC220V to DC24V and DC5V. The DC24V provides power to the PLC controller, touch screen 1, detection sensors, and solenoid valves, while the DC5V provides power to the counting box.

[0101] Please see Figure 5 Based on the aforementioned control system for a contact paper counting machine, this embodiment proposes a control method for a contact paper counting machine, including:

[0102] Step S1: Power-on initialization;

[0103] Step S2: Parameter settings and mode selection;

[0104] Step S3: Place the products in place and start counting the products;

[0105] Step S4: After clearing the data, the module is positioned back to the origin.

[0106] In this embodiment, specifically, step S1 includes:

[0107] Control the reset of intermediate variables, the initialization of the counting threshold of the counting box, and the return of the module to the origin upon power-on;

[0108] Step S2 includes: setting the rotation speed of the paper tray, the lifting speed of the module servo, and the rapid positioning speed of the module servo on the touch screen, and selecting the control mode and the clearing mode.

[0109] The control modes include: manual mode and automatic mode; the manual mode is used to individually control the movement of the pressing cylinder, module servo, and counting tray during the debugging process, while the automatic mode is used to automatically count the products after they are detected to be in place.

[0110] The counting modes include: fixed value mode and non-fixed value mode; wherein, the fixed value mode compares the count with a set value after the product count is completed to determine whether the product count is qualified, while the non-fixed value mode only performs the function of counting the product.

[0111] Step S3 includes:

[0112] After the products are placed in place, the paper counting machine automatically begins counting the products. First, the pressing cylinder holds the products down while the negative pressure pump is activated. Then, the module servo drives the counting tray to descend rapidly. When the distance detected by the distance sensor is less than the set threshold, the module servo pauses the descent and starts rotating the counting tray. Next, based on the counting value of the paper tray and the detection distance of the distance sensor, the module servo repeats the motion and stop actions, continuously following the rotation of the counting tray to absorb and separate the paper until the counting of the products is completed.

[0113] Step S4 includes:

[0114] Once the product count is complete, immediately stop the paper tray rotation and module servo descent, and simultaneously turn off the negative pressure pump; then, release the pressing cylinder and wait for the product to be taken away; when the product arrival detection sensor does not detect the product, the module will quickly return to its original position to prepare for the next product count.

[0115] Example 2

[0116] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0117] Please see Figure 6 Taking a fixed count of 1000 in automatic mode as an example, the specific implementation of the contact paper counting machine control system is described in detail:

[0118] Once the products to be counted are placed and the product arrival detection sensor detects the products, the pressing cylinder presses down on the products and simultaneously starts the negative pressure pump. Subsequently, the module servo descends rapidly, bringing the counting tray close to the products. When the distance sensor detects a distance value of less than or equal to 108mm (in the default state, the counting tray hangs naturally, and the distance sensor value is 112mm), it indicates that the module has descended to the correct position. At this point, the module servo pauses its descent and enters the product counting control process.

[0119] When product counting begins, the counting tray rotates immediately, and the control system judges in real time whether the count value has changed. If the count value does not change within the timer T0 period, the module servo will stop descending, and the counting tray and negative pressure pump will also stop. Subsequently, the pressing cylinder will automatically reset, and after the product is removed, the module servo will quickly return to the origin. If the count value changes within the timer T0 period, it indicates that the counting tray is picking up and separating paper, and the timer T0 will be reset to zero.

[0120] As the counting tray absorbs and separates the paper, the count value increases and the distance of the ranging sensor gradually increases, so the module servo will start moving again; however, in order to adapt to the situation where the top of the product is tilted upwards and the middle part of the product is relatively tight, it is necessary to adjust the pressure value between the counting tray and the product at different parts of the product. This is achieved by changing the threshold of the module servo's movement and stop in the control.

[0121] When the count value is less than or equal to 700, the threshold is set to 108; when the count value is between 700 and 900, the threshold is set to 110; when the count value is between 900 and 998, the threshold is set to 112. In addition, in order to avoid the counting tray spinning idle and rubbing against the lower surface of the product after the product is counted, causing product contamination, when the count value is greater than 998, the threshold is set to 108, so that the module servo can quickly descend after the product is counted, so that the counting tray no longer contacts the product.

[0122] If the pause time of the module servo descent exceeds the timing time of timer T1, the paper tray rotation will stop and the negative pressure pump will be turned off. Then, the pressing cylinder will be controlled to reset. After the product is taken away, the module servo will quickly return to the origin and prepare to start the next product counting.

[0123] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

[0124] This background section is provided to generally present the context of the invention. The work of the currently named inventors, the work to the extent described in this background section, and aspects of this section that did not constitute prior art at the time of application are neither expressly nor impliedly acknowledged as prior art to the invention.

Claims

1. A control system for a contact-type paper counting machine, characterized in that, include: Plate servo, module servo, negative pressure pump, counting module, pressing cylinder, detection sensor, PLC controller and touch screen; The disk servo and module servo are used to drive the paper disk to rotate and lift, respectively. The negative pressure pump provides negative pressure vacuum for the rotating paper trays to separate the paper. The counting module counts the paper dispensed from the paper tray. The pressing cylinder is used to press the product after it is in place, preventing the product from moving when the counting tray is being cleared. The detection sensor is used to detect the position and status of the product, the pressing cylinder, the module servo, and the counting tray; The PLC controller is the core of the control system, used to receive and send instruction signals to control the paper tray to automatically complete the product counting. The touchscreen serves as the monitoring center for the control system, providing a human-machine interface. The detection sensor includes: Product arrival detection sensor, module-origin sensor, module-high / low limit sensor, press cylinder action / reset detection magnetic ring, and distance sensor; The product arrival detection sensor is used to detect whether the product has reached the working range of the paper tray; The module-origin sensor is a normally open contact used to detect the origin of the module servo motor, which facilitates origin return before positioning control of the module servo motor; The module-high / low limit sensor includes a module-high limit sensor and a module-low limit sensor; the module-high limit sensor and the module-low limit sensor are normally closed contacts, which are used to detect the high and low limit positions of the module servo motor, respectively, to prevent the module servo motor from moving beyond the specified area and causing equipment damage. The magnetic rings for detecting the action / reset of the pressing cylinder are used to detect whether the action / reset of the pressing cylinder is completed. The distance sensor is used to detect the floating distance of the counting tray in real time. The PLC controller can use the relationship between the floating distance and the set threshold to control the movement and stopping of the module servo motor, thereby adjusting the pressure when the counting tray counts products. To accommodate the product's upward curve at the top and tightness in the middle, the pressure between the paper tray and the product needs to be adjusted at different points. This is achieved by changing the threshold values ​​for the module's servo movement and stop. When the count value is less than or equal to 700, the threshold is set to 108; when the count value is between 700 and 900, the threshold is set to 110; when the count value is between 900 and 998, the threshold is set to 112; when the count value is greater than 998, the threshold is set to 108, so that the module servo can quickly descend after the product is counted, so that the counting tray no longer contacts the product.

2. The control system for a contact-type paper counting machine according to claim 1, characterized in that, The disk servo includes: Disc servo motor and disc servo driver; The disk servo driver drives the paper disks to rotate according to the instruction signals sent by the PLC controller; The module servo includes: Module servo motors and module servo drivers; The module servo driver drives the paper trays to move up and down according to the instruction signals sent by the PLC controller.

3. The control system for a contact-type paper counting machine according to claim 1, characterized in that, The negative pressure pump provides negative pressure gas to the counting paper tray. The negative pressure gas acts on the paper through the paper separating air channel of the counting paper tray, and the paper is separated by adsorption as the counting paper tray rotates.

4. The control system of a contact-type paper counting machine according to claim 2, characterized in that, The counting module includes: Vacuum sensor and counting box; The vacuum sensor is used to detect the negative pressure value of the paper separation air channel of the paper tray; The counting box is used to process the detected negative pressure value, then count it according to the set threshold, and send the count value to the PLC controller through the RS232 serial port.

5. The control system for a contact-type paper counting machine according to claim 4, characterized in that, In the control of the actuators of a contact-type paper counting machine, the start and stop of the negative pressure pump is controlled by a contactor, and the on and off of the contactor is controlled by a relay. The action / reset of the pressing cylinder is controlled by a solenoid valve, and the opening and closing of the solenoid valve is also controlled by a relay; The control of the plate servo driver and the module servo driver is achieved by using high-speed pulses and direction signals output from the PLC controller.

6. The control system of a contact-type paper counting machine according to claim 5, characterized in that, Also includes: Electrical control box; The disk servo driver, module servo driver, counting box, and PLC controller are all placed in the electrical control box.

7. The control system for a contact-type paper counting machine according to claim 6, characterized in that, The electrical control box uses AC220V input, which powers the disk servo driver, module servo driver and switching power supply respectively; The switching power supply converts AC220V to DC24V and DC5V. The DC24V provides power to the PLC controller, touch screen, detection sensors, and solenoid valves, while the DC5V provides power to the counting box.

8. A control method for a contact-type paper counting machine, characterized in that, A control system for a contact paper counting machine according to any one of claims 1-7, comprising: Step S1: Power-on initialization; Step S2: Parameter settings and mode selection; Step S3: Place the products in place and start counting the products; Step S4: After clearing the data, the module is positioned back to the origin.

9. The control method for a contact-type paper counting machine according to claim 8, characterized in that, Step S1 includes: Control the reset of intermediate variables, the initialization of the counting threshold of the counting box, and the return of the module to the origin upon power-on; Step S2 includes: setting the rotation speed of the paper tray, the lifting speed of the module servo, and the rapid positioning speed of the module servo on the touch screen, and selecting the control mode and the clearing mode. The control modes include: manual mode and automatic mode; the manual mode is used to individually control the movement of the pressing cylinder, module servo, and counting tray during the debugging process, while the automatic mode is used to automatically count the products after they are detected to be in place. The counting modes include: fixed value mode and non-fixed value mode; wherein, the fixed value mode compares the count with a set value after the product count is completed to determine whether the product count is qualified, while the non-fixed value mode only performs the function of counting the product. Step S3 includes: After the products are placed in place, the paper counting machine automatically begins counting the products. First, the pressing cylinder holds the products down while the negative pressure pump is activated. Then, the module servo drives the counting tray to descend rapidly. When the distance detected by the distance sensor is less than the set threshold, the module servo pauses the descent and starts rotating the counting tray. Next, based on the counting value of the paper tray and the detection distance of the distance sensor, the module servo repeats the motion and stop actions, continuously following the rotation of the counting tray to absorb and separate the paper until the counting of the products is completed. Step S4 includes: Once the product count is complete, immediately stop the paper tray rotation and module servo descent, and simultaneously turn off the negative pressure pump; then, release the pressing cylinder and wait for the product to be taken away; when the product arrival detection sensor does not detect the product, the module will quickly return to its original position to prepare for the next product count.

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