Servo pressure control method and system

Abstract

The invention relates to the technical field of press machines, in particular to a servo pressure control method and a system applying the method, and the method comprises the following steps: S100, inputting a working mode of a press machine to a master controller; s200, the master controller reads the working mode and analyzes parameters, and then the corresponding parameters are distributed to the first servo motor and the second servo motor; s300, a first servo motor is used for driving the container to ascend and descend relative to the pressing and holding piece according to the parameters, and a second servo motor is used for driving the pressing and holding piece to ascend and descend relative to the container; and the first servo motor and the second servo motor are matched to control the pressing piece and the container to simulate the required action of the oil press. The first servo motor and the second servo motor are arranged and used for driving the container and the pressing and holding piece to ascend and descend correspondingly, so that the container and the pressing and holding piece can execute related actions correspondingly according to the requirements of different working modes, and flexibility is improved.

Description

Technical Field

[0001] This invention relates to the field of press technology, and in particular to a servo pressure control method and system. Background Technology

[0002] A servo press is a device that uses a motor as a power source to drive the upper die to rise and fall relative to the lower die to achieve the opening and closing effect of the die. Because the power is changed from hydraulic pressure to electric direct drive, the servo press has higher precision and is more energy-efficient than the traditional press.

[0003] However, traditional servo presses typically only drive the upper die, while the lower die remains fixed. This means that a servo press can only achieve the same action as a traditional press, and cannot be configured with a specific working mode based on actual usage, thus failing to leverage the advantages of direct electric drive. Summary of the Invention

[0004] This invention addresses the problems of existing technologies by providing a servo pressure control method and system. Through structural changes and adjustments to the control method, it achieves the effect of simulating and executing multiple different working modes.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a servo pressure control method, comprising the following steps: S100. Input the press operating mode to the main controller; S200. The main controller reads the working mode and analyzes the parameters, and then allocates the corresponding parameters to the first servo motor and the second servo motor; S300. The first servo motor drives the container to rise and fall relative to the pressure holding member according to the parameters, and the second servo motor drives the pressure holding member to rise and fall relative to the container; the actions of the first servo motor and the second servo motor are coordinated to control the action of the pressure holding member and the container to simulate the required action of the hydraulic press.

[0006] Furthermore, step S100 specifically includes: S110. Input the standby height and pre-compression height of the clamping component to the main controller; S120. Input the demolding height and filling height of the container to the main controller; S130. The main controller detects the values ​​of standby height, pre-compression height, demolding height, and filling height. If the parameters are qualified, step S140 is executed; otherwise, if the parameters are unqualified, the main controller issues a warning signal. S140. Record the current parameters and archive them, then proceed to step S200.

[0007] Furthermore, step S130 specifically includes: S131. Determine if the values ​​of standby height, pre-compression height, demolding height, and filling height are within their respective preset ranges; if so, proceed to step S132; otherwise, the main controller will issue a warning signal. S132. Determine if the following conditions are met: the value of the standby height > the value of the pre-compression height > the value of the filling height > the value of the demolding height. If yes, proceed to step S200; otherwise, the main controller will issue a warning signal.

[0008] Furthermore, step S100 also includes: Input the residence time of the container at the filling position and output the pressure value; Input the dwell time of the pressure holding member at the pre-compression height and the output pressure value.

[0009] Furthermore, step S200 also includes: the main controller assigning the corresponding parameters to the third servo motor; Step S300 also includes: using the action of a third servo motor to drive the feeding mechanism to push the material into the container at a set speed and pressure.

[0010] The present invention also provides a servo pressure control system, including a main controller, a container, a pressure holder, a first servo motor and a second servo motor, both of which are signal-connected to the main controller, with the container and the pressure holder facing each other. The main controller is used to input the working mode and control the first servo motor and the second servo motor to operate according to the parameters in the working mode. A first transmission module is provided between the first servo motor and the container, and the first servo motor drives the container to lift and lower via the first transmission module; A second transmission module is provided between the second servo motor and the pressing component, and the second servo motor drives the pressing component to rise and fall via the second transmission module; The container and pressure holding components are raised and lowered separately to achieve different working modes under different conditions.

[0011] Furthermore, the main controller is equipped with an input module, a self-test module, a mode switching module, and a control module; The mode switching module allows users to select a working mode and displays the parameters that need to be entered according to the working mode. The input module is used to allow users to input the required parameters; The self-test module is used to check the parameters input by the user to determine whether the parameters are qualified. The control module is used to control the first servo motor and the second servo motor to perform corresponding actions according to the parameters after all parameters are qualified.

[0012] Furthermore, the mode switching module includes a first module and a second module. The first module is connected to the first servo motor signal and stores the following modes: In normal pressure mode, the first servo motor is controlled to drive the container to rise to the receiving position according to the input parameters and hold it, so that the material inside the container is held by the holding component after the material is received. In the shaking mode, the first servo motor is controlled to drive the container to rise to the receiving position to receive the material according to the input parameters. Then, the first servo motor is controlled to rotate forward and backward according to the input parameters to control the container to shake up and down. In the pressure holding mode, the first servo motor is controlled to drive the container to rise to contact with the pressure holding member according to the input parameters, and the container is kept in pressure for a preset time. The second module is connected to the second servo motor signal, and the second module stores the following modes: In normal pressure mode, the second servo motor is controlled to drive the pressure holding component to descend according to the input parameters; In the secondary pressing mode, the second servo motor is controlled to drive the pressing component to descend and press for two periods of time according to the input parameters, and then the second servo motor is controlled to drive the pressing component to descend two distances to perform secondary pressing. In the pressure holding mode, the second servo motor is controlled to drive the holding member to descend and hold according to the input parameters, so that the holding member holds the set pressure value and continues to press for a preset time. The modes stored in the first module and the second module can be selected independently.

[0013] Furthermore, it also includes a third servo motor and a feeding mechanism. The third servo motor is connected to the main control module and is used to drive the feeding mechanism to feed material into the container.

[0014] Furthermore, the main controller is connected to a first sensing module and a second sensing module. The sensing module is used to sense the pressure when the pressure member presses the material in the container, and the second sensing module is used to sense the output power of the first servo motor and the second servo motor. During the pressing process, the main controller compares the values ​​measured by the first sensing module and the second sensing module respectively. If the comparison result exceeds the preset range, an alarm is issued.

[0015] The beneficial effects of the present invention are as follows: By setting a first servo motor and a second servo motor to drive the container and the pressure holding component to rise and fall respectively, the present invention can make the container and the pressure holding component perform relevant actions according to different working modes, thereby improving flexibility. Attached Figure Description

[0016] Figure 1 This is a flowchart of the operation in Example 1.

[0017] Figure 2 This is a schematic diagram of the structure of Example 2.

[0018] Figure 3 This is a schematic diagram of the machine body after it has been hidden in Example 2.

[0019] Figure 4 This is a block diagram of the principle of Example 2.

[0020] Reference numerals: 1—Main controller, 2—Container, 3—Pressure holding component, 4—First servo motor, 5—Second servo motor, 6—Third servo motor, 7—Pushing mechanism, 8—Machine body, 9—First transmission module, 10—Second transmission module. Detailed Implementation

[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0022] Example 1 like Figure 1 and Figure 2 As shown, this embodiment provides a servo pressure control method, including the following steps: S100. Input the operating mode of the press to the main controller 1; S200. The main controller 1 reads the working mode and analyzes the parameters, and then allocates the corresponding parameters to the first servo motor 4 and the second servo motor 5; S300. The first servo motor 4 drives the container 2 to rise and fall relative to the pressure member 3 according to the parameters, and the second servo motor 5 drives the pressure member 3 to rise and fall relative to the container 2; the actions of the first servo motor 4 and the second servo motor 5 are coordinated to control the pressure member 3 and the container 2 to simulate the required hydraulic press action.

[0023] In actual use, the pressing member 3 (upper mold) and the container 2 (lower mold) of the present invention are driven by the second servo motor 5 and the first servo motor 4, respectively. For example, when mold closing is required, the second servo motor 5 drives the pressing member 3 to descend and close the container 2; if it is necessary to control the container 2 to achieve actions such as vibration, the first servo motor 4 can rotate forward and backward according to a preset cycle.

[0024] By driving the container 2 and the pressure member 3 to rise and fall by the first servo motor 4 and the second servo motor 5 respectively, in addition to ensuring the lifting accuracy, the basic lifting action can also simulate a variety of different working modes, thereby making the working mode of the present invention more diverse and improving its flexibility.

[0025] In this embodiment, step S100 specifically includes: S110. Input the standby height and pre-pressure height of the pressure holding member 3 to the main controller 1; S120. Input the demolding height and filling height of container 2 to the main controller 1; S130. The main controller 1 detects the values ​​of standby height, pre-compression height, demolding height and filling height. If the parameters are qualified, step S140 is executed; otherwise, if the parameters are unqualified, the main controller 1 issues a warning signal. S140. Record the current parameters and archive them, then proceed to step S200.

[0026] When using the press corresponding to this invention, the user needs to input the parameters required for the formed product into the main controller 1. These parameters include at least the following parameters of the holding component 3: standby height (initial height) and pre-compression height (mold closing height), and may also include mold closing pressure value, holding pressure value, etc. In addition, the following parameters of the container 2 are also included: demolding height (initial height) and filling height (feeding height); when the filling height of the container 2 is not the mold closing height, the mold closing height of the container 2 also needs to be input; when the material in the container 2 has uneven characteristics during feeding, parameters such as the shaking amplitude and number of times of the container 2 also need to be input.

[0027] After the above parameters are input, the main controller 1 will check the parameters according to its internal logic. Only after the check is passed will the parameters be entered and executed. If any parameter is unqualified, the main controller 1 will report an error and remind the user to adjust the unqualified parameter, thereby ensuring the safety of the operation of the present invention.

[0028] In this embodiment, step S130 specifically includes: S131. Determine if the values ​​of standby height, pre-compression height, demolding height, and filling height are within their respective preset ranges; if so, proceed to step S132; otherwise, the main controller 1 will issue a warning signal. S132. Determine if the following conditions are met: the value of the standby height > the value of the pre-compression height > the value of the filling height > the value of the demolding height. If yes, proceed to step S200; otherwise, the main controller 1 will issue a warning signal.

[0029] The parameter comparison of the present invention is divided into two steps: the first step is to compare the input parameters with the preset range, which is mainly set with reference to the stroke and maximum power of the first servo motor 4 and the stroke and maximum power of the second servo motor 5; if the above parameters are less than or greater than the preset range, the first servo motor 4 / second servo motor 5 cannot be physically realized, and an error can only be reported to remind the user.

[0030] After all parameters have been compared with the preset range, a logical comparison is then performed on these parameters. For example, the value of the standby height > the value of the pre-compression height > the value of the filling height > the demolding height. This comparison is mainly because the standby height must be greater than the pre-compression height, and the pre-compression height must be greater than the filling height to make logical sense. If the pre-compression height is less than the filling height, it is equivalent to the height of the holding part 3 being lower than the height of the container 2 when the mold is closed, which will inevitably lead to excessive squeezing between the two and damage.

[0031] Therefore, only parameters that meet the requirements after two layers of comparison can be entered and executed. The settings in step S130 ensure that errors in parameter input by the user can be detected and adjusted promptly, thus guaranteeing safety.

[0032] In this embodiment, step S100 further includes: Input the residence time of container 2 at the filling position and the output pressure value; Input the dwell time of the pressure holding member 3 at the pre-compression height and the output pressure value.

[0033] The dwell time and output pressure value constitute the pressure holding action. The significance of this action is that for some products, a longer period of time with sufficient pressure is required during mold closing to gradually compact and reliably form the product; thus, pressure holding is necessary. Because this invention has a first servo motor 4 and a second servo motor 5, the required pressure values ​​can be output by the two servo motors respectively, allowing for a wider range of pressure holding pressures and enabling pressure holding molding of products made from a wider variety of materials.

[0034] Specifically, for example, when a product requires a pressure value N for pressure holding, it is preferable to set the first servo motor 4 and the second servo motor 5 to (N / 2) + M1 and (N / 2) + M2, respectively, where M1 and M2 are compensation values ​​for conditions such as the weight of the container 2 and the weight of the holding member 3. By assigning the first servo motor 4 and the second servo motor 5 with essentially the same pressure holding value, it is ensured that their outputs are essentially the same, and it also avoids the inability to maintain the pressure holding member 3 and the container 2 from rising or falling during the pressure holding process due to an excessive difference in force between the two.

[0035] To simplify the operation of this invention, it can be equipped with two weight sensors to sense the weight of the pressure-bearing component 3 and the container 2 respectively and transmit the data to the main controller 1. Thus, when inputting the output pressure value, the user only needs to input a specific value (e.g., N), and the main controller 1 will automatically calculate the actual output force of the first servo motor 4 and the second servo motor 5 based on "(N / 2) + M1" or "(N / 2) + M2", and then convert it into the required power and torque of the first servo motor 4 and the second servo motor 5.

[0036] In this embodiment, step S200 further includes: the main controller 1 assigns the corresponding parameters to the third servo motor 6; Step S300 also includes: using the third servo motor 6 to drive the feeding mechanism 7 to push the material into the container 2 at a set speed and pressure.

[0037] The invention also includes a feeding mechanism 7, in which the material is fed into the container 2 by the action of a third servo motor 6. This invention achieves fully automated feeding and forming operations, with all actions accomplished through the coordinated action of a first servo motor 4, a second servo motor 5, and a third servo motor 6, ensuring precision in both action and force.

[0038] Example 2 like Figure 3 and Figure 4 As shown, this embodiment provides a servo pressure control system, including a main controller 1, a container 2, a pressure holder 3, a first servo motor 4 and a second servo motor 5, all of which are signal-connected to the main controller 1. The container 2 and the pressure holder 3 are arranged facing each other. The main controller 1 is used to input the working mode and control the first servo motor 4 and the second servo motor 5 to operate according to the parameters in the working mode; specifically, the main controller 1 stores a program for executing the control method described in Embodiment 1. A first transmission module 9 is provided between the first servo motor 4 and the container 2, and the first servo motor 4 drives the container 2 to rise and fall via the first transmission module 9; A second transmission module 10 is provided between the second servo motor 5 and the pressing member 3. The second servo motor 5 drives the pressing member 3 to rise and fall via the second transmission module 10. The container 2 and the pressure member 3 are raised and lowered respectively to achieve different working modes under different conditions.

[0039] Specifically, both the first transmission module 9 and the second transmission module 10 use conventional methods, such as both being lead screw structures.

[0040] In other words, this embodiment is used to execute the method described in embodiment 1. By actuating the first servo motor 4 and the second servo motor 5 respectively, the container 2 and the pressure member 3 are controlled to perform corresponding lifting actions, thereby simulating and executing different working scenarios and making this embodiment more flexible.

[0041] In this embodiment, the main controller 1 is equipped with an input module, a self-test module, a mode switching module, and a control module; The mode switching module allows users to select a working mode and displays the parameters that need to be entered according to the working mode. The input module is used to allow users to input the required parameters; The self-test module is used to check the parameters input by the user to determine whether the parameters are qualified. The control module is used to control the first servo motor 4 and the second servo motor 5 to perform corresponding actions according to the parameters after all parameters are qualified.

[0042] In addition to entering parameters, this data entry module can also perform the following steps: require users to authenticate themselves. Only after the user is authenticated can they select the working mode and enter parameters.

[0043] The mode switching module mainly stores several commonly used modes in advance. Users can select the mode they need as required; for modes that users need but have not stored, they can be imported by the user into the main controller 1.

[0044] Specifically, the mode switching module includes a first module and a second module. The first module is signal-connected to the first servo motor 4, and the first module stores the following modes: In normal pressure mode, the first servo motor 4 is controlled to drive the container 2 to rise to the receiving position according to the input parameters and hold it, so that the material inside the container 2 is held by the holding member 3 after the material is received. In the shaking mode, the first servo motor 4 is controlled to drive the container 2 to rise to the receiving position to receive the material according to the input parameters. Then, the first servo motor 4 is controlled to rotate forward and backward according to the input parameters to control the container 2 to shake up and down. In the pressure holding mode, the first servo motor 4 is controlled to drive the container 2 to rise to contact the pressure holding member 3 according to the input parameters, so that the container 2 maintains the set pressure value and continues to press for a preset time. The second module is connected to the second servo motor 5 via a signal, and the second module stores the following modes: In normal pressure mode, the second servo motor 5 is controlled to drive the pressure holding component 3 to descend according to the input parameters; In the secondary pressing mode, the second servo motor 5 is controlled to drive the pressing component 3 to descend and press for two periods of time according to the input parameters, and then the second servo motor 5 is controlled to drive the pressing component 3 to descend two distances for secondary pressing. In the pressure holding mode, the second servo motor 5 is controlled to drive the holding member 3 to descend and hold according to the input parameters, so that the holding member 3 maintains the set pressure value and continues to press for a preset time. The modes stored in the first module and the second module can be selected independently.

[0045] In this embodiment, when setting the working mode, it is necessary to set the working mode and working parameters of the first servo motor 4 and the second servo motor 5 in the first module and the second module respectively. This is because the first servo motor 4 and the second servo motor 5 are used to perform different actions. Only by setting them separately and allowing them to perform their corresponding actions can the container 2 and the pressure holding member 3 cooperate to form the required working mode. For example, there is a product that requires the container 2 to shake after receiving the material, in conjunction with the pressure holding member 3 to maintain pressure. In this case, the user needs to select the shaking mode and the pressure holding mode in the first module and the pressure holding mode in the second module, and input the corresponding parameters respectively. Subsequently, when the present invention is working, after the first servo motor 4 controls the container 2 to shake according to the input parameters after receiving the material, the pressure holding member 3 and the container 2 will apply the corresponding pressure according to the pressure holding value (refer to the method described in Embodiment 1, input the pressure value N in the first module and the second module respectively, and the first module and the second module will calculate the force that the first servo motor 4 and the second servo motor 5 need to provide according to "(N / 2) + M1" or "(N / 2) + M2" respectively). By controlling the components separately, this invention can achieve more operating modes based on the combination of different modes of the first and second modules.

[0046] In this embodiment, the invention further includes a third servo motor 6 and a feeding mechanism 7. The third servo motor 6 is signal-connected to the main control module and is used to drive the feeding mechanism 7 to feed material into the container 2. That is, the invention achieves fully automatic execution from material feeding to mold closing and forming through the cooperation of the first servo motor 4, the second servo motor 5, and the third servo motor 6, thereby achieving a higher level of intelligence.

[0047] Specifically, the control module also includes a third module, which is connected to the third servo motor 6 and is used to input corresponding control signals to the third servo motor 6.

[0048] In this embodiment, the main controller 1 is connected to a first sensing module and a second sensing module. The sensing module is used to sense the pressure when the holding member 3 holds the material in the container 2, and the second sensing module is used to sense the output power of the first servo motor 4 and the second servo motor 5. During the pressing process, the main controller 1 compares the values ​​measured by the first sensing module and the second sensing module respectively. If the comparison result exceeds the preset range, an alarm is issued.

[0049] Each time the mold is closed and formed, the pressure value is measured by the pressure holder and container 2 respectively. The main controller 1 then calculates and displays the pressure value between the pressure holder 3 and container 2, which directly reflects the current pressure state of the material. Workers can use the pressure values ​​and change curves of each mold closing and forming process to determine whether the product is formed within the required environment, facilitating traceability and improvement.

[0050] When the pressure value is abnormal, it may be due to an actual working problem, or it may be due to a malfunction in the first or second sensing module. In this case, the present invention will issue a warning to remind the user to troubleshoot the fault in time and ensure the smooth operation of production.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A servo pressure control method, characterized in that, Includes the following steps: S100. Input the press operating mode to the main controller; S200. The main controller reads the working mode and analyzes the parameters, and then allocates the corresponding parameters to the first servo motor and the second servo motor; S300. The first servo motor drives the container to rise and fall relative to the pressure holding member according to the parameters, and the second servo motor drives the pressure holding member to rise and fall relative to the container; the actions of the first servo motor and the second servo motor are coordinated to control the action of the pressure holding member and the container to simulate the required action of the hydraulic press.

2. The servo pressure control method according to claim 1, characterized in that, Step S100 specifically includes: S110. Input the standby height and pre-compression height of the clamping component to the main controller; S120. Input the demolding height and filling height of the container to the main controller; S130. The main controller detects the values ​​of standby height, pre-compression height, demolding height, and filling height. If the parameters are qualified, step S140 is executed; otherwise, if the parameters are unqualified, the main controller issues a warning signal. S140. Record the current parameters and archive them, then proceed to step S200.

3. The servo pressure control method according to claim 2, characterized in that, Step S130 specifically includes: S131. Determine if the values ​​of standby height, pre-compression height, demolding height, and filling height are within their respective preset ranges; if so, proceed to step S132; otherwise, the main controller will issue a warning signal. S132. Determine if the following conditions are met: the value of the standby height > the value of the pre-compression height > the value of the filling height > the value of the demolding height. If yes, proceed to step S200; otherwise, the main controller will issue a warning signal.

4. The servo pressure control method according to claim 2, characterized in that, Step S100 also includes: Input the residence time of the container at the filling position and output the pressure value; Input the dwell time of the pressure holding member at the pre-compression height and the output pressure value.

5. The servo pressure control method according to claim 2, characterized in that, Step S200 also includes: the main controller assigning the corresponding parameters to the third servo motor; Step S300 also includes: using the action of a third servo motor to drive the feeding mechanism to push the material into the container at a set speed and pressure.

6. A servo pressure control system, characterized in that, It includes a main controller, a container, a pressure holding component, a first servo motor and a second servo motor, both of which are connected to the main controller for signal transmission. The container and the pressure holding component are arranged facing each other. The main controller is used to input the working mode and control the first servo motor and the second servo motor to operate according to the parameters in the working mode. A first transmission module is provided between the first servo motor and the container, and the first servo motor drives the container to lift and lower via the first transmission module; A second transmission module is provided between the second servo motor and the pressing component, and the second servo motor drives the pressing component to rise and fall via the second transmission module; The container and pressure holding components are raised and lowered separately to achieve different working modes under different conditions.

7. The servo pressure control system according to claim 6, characterized in that, The main controller is equipped with an input module, a self-test module, a mode switching module, and a control module; The mode switching module allows users to select a working mode and displays the parameters that need to be entered according to the working mode. The input module is used to allow users to input the required parameters; The self-test module is used to check the parameters input by the user to determine whether the parameters are qualified. The control module is used to control the first servo motor and the second servo motor to perform corresponding actions according to the parameters after all parameters are qualified.

8. The servo pressure control system according to claim 7, characterized in that, The mode switching module includes a first module and a second module. The first module is connected to the first servo motor signal and stores the following modes: In normal pressure mode, the first servo motor is controlled to drive the container to rise to the receiving position according to the input parameters and hold it, so that the material inside the container is held by the holding component after the material is received. In the shaking mode, the first servo motor is controlled to drive the container to rise to the receiving position to receive the material according to the input parameters. Then, the first servo motor is controlled to rotate forward and backward according to the input parameters to control the container to shake up and down. In the pressure holding mode, the first servo motor is controlled to drive the container to rise to contact with the pressure holding member according to the input parameters, and the container is kept in pressure for a preset time. The second module is connected to the second servo motor signal, and the second module stores the following modes: In normal pressure mode, the second servo motor is controlled to drive the pressure holding component to descend according to the input parameters; In the secondary pressing mode, the second servo motor is controlled to drive the pressing component to descend and press for two periods of time according to the input parameters, and then the second servo motor is controlled to drive the pressing component to descend two distances to perform secondary pressing. In the pressure holding mode, the second servo motor is controlled to drive the holding member to descend and hold according to the input parameters, so that the holding member holds the set pressure value and continues to press for a preset time. The modes stored in the first module and the second module can be selected independently.

9. The servo pressure control system according to claim 5, characterized in that, It also includes a third servo motor and a feeding mechanism. The third servo motor is connected to the main control module and is used to drive the feeding mechanism to feed material into the container.

10. The servo pressure control system according to claim 5, characterized in that, The main controller is connected to a first sensing module and a second sensing module. The sensing module is used to sense the pressure when the pressure member presses the material in the container, and the second sensing module is used to sense the output power of the first servo motor and the second servo motor. During the pressing process, the main controller compares the values ​​measured by the first sensing module and the second sensing module respectively. If the comparison result exceeds the preset range, an alarm is issued.

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