Quality detection equipment for paper tray production and use method thereof

Abstract

The invention discloses quality detection equipment for paper tray production and a use method thereof, and relates to the technical field of paper tray production, and the technical key points are that the quality detection equipment comprises a workbench on which a positioning mechanism, an auxiliary stabilizing mechanism, a deformation monitoring mechanism and a pressurizing mechanism are integrated; the positioning mechanism stabilizes the position of the paper support through clamping assemblies on the two sides of the workbench. The auxiliary stabilizing mechanism is composed of a working face, air holes, branch air pipes, a main air pipe and an air pump, and stable fixing or convenient separation of the paper support is achieved. The deformation monitoring mechanism is embedded into the working face, and the bottom of the paper holder is marked when the paper holder deforms through a mark pen, a sliding pipe, a lower pressing plate, a pressure detection spring and the like. The pressurizing mechanism comprises a mounting frame, two lifting assemblies, a pressure sensor and a flexible pressing head, and the pressurizing degree of the paper support is accurately controlled. The device can prevent the pressure from being too concentrated during detection, and guarantees the accuracy of a detection result.

Description

Technical Field

[0001] The present invention relates to the technical field of paper tray production, and in particular to a quality inspection device for paper tray production and a use method thereof. Background Art

[0002] Paper tray, scientifically known as molded pulp tray, is an environmentally friendly paper product. It is made of carton scraps, white pure wood pulp, corrugated paper edges, sugarcane pulp, log pulp, white paper edges, etc., which are crushed and mixed into a certain proportion of pulp concentration. Then, according to the product design, it is made on a customized CNC mold through vacuum adsorption molding or hot pressing molds under high temperature and high pressure to dry, shape and finalize.

[0003] Paper trays, as a paper product specially designed to support various items, have occupied an important position in the market due to their many advantages, such as relatively low cost, high environmental recyclability and light weight. They are made with exquisite craftsmanship and flexible and varied shapes, and can be customized according to the needs of different customers.

[0004] However, it is worth noting that among the paper trays currently produced with general raw materials on the market, there are still a few products with minor defects, which make them unable to meet the strict requirements of the factory. In order to improve the overall product qualification rate, in the production process, to ensure the reliability and durability of the paper tray, it is a crucial link to carry out strength testing on the finished product. This step is to clarify the maximum pressure limit that the paper tray can withstand in actual use, so as to effectively avoid possible damage or failure during use. In the existing paper tray strength testing devices, most of the designs are relatively simple, mainly using a single-point test method. This test method can easily cause the paper tray to bend or break when applying downward pressure due to excessive concentration of pressure. However, in actual application scenarios, paper trays are usually used to support objects covering their surface. At this time, the same weight is distributed on the entire paper tray, and it will not cause bending or breaking. Therefore, this single-point test method often cannot accurately reflect the actual performance of the paper tray in actual use, resulting in inaccurate test results. Summary of the invention

[0005] In view of the technical problem that during the above-mentioned existing paper tray quality inspection, the pressure is too concentrated and the inspection results are inaccurate, the present invention aims to develop a quality inspection device for paper tray production and a method of using the same, so as to avoid excessively concentrated pressure during inspection and ensure the accuracy of the inspection results.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A quality inspection device for paper tray production, comprising a workbench, on which a positioning mechanism for stabilizing the position of the paper tray, an auxiliary stabilizing mechanism for assisting the stabilization or detachment of the paper tray, a deformation monitoring mechanism for monitoring the degree of deformation of the paper tray, and a pressurizing mechanism for applying pressure to the paper tray are arranged;

[0008] The positioning mechanism includes clamping assemblies located on both sides of the upper surface of the workbench; the auxiliary stabilizing mechanism is located between the two clamping assemblies;

[0009] The auxiliary stabilization mechanism comprises a working surface fixedly arranged on the upper surface of the working table, the working surface is connected with a plurality of air holes, the air holes are connected with bronchi, the plurality of bronchi are connected with the same main air pipe, and the main air pipe is connected with a suction and blowing dual-purpose air pump;

[0010] The deformation monitoring mechanism includes a plurality of monitoring components embedded in the working surface, the monitoring component includes a fixed tube embedded in the working surface, a marker pen is arranged in the fixed tube, the tip of the marker pen faces upward and its tip is higher than the fixed tube by a certain distance, a sliding tube is slidably attached to the outer wall of the fixed tube, a lower pressing plate is arranged on the top of the sliding tube, a marking hole for the tip of the marker pen to pass through is provided in the middle of the lower pressing plate, a movable groove for the lower pressing plate to move is provided on the working surface, the bottom of the movable groove is connected to the lower surface of the lower pressing plate through a pressure detection spring, and the pressure detection spring is sleeved outside the sliding tube; the initial state of the lower pressing plate is in the same horizontal plane as the upper surface of the working surface; when the pressure borne by the lower pressing plate is equal to or exceeds the preset pressure value, the pressure detection spring is compressed, the lower pressing plate descends, and the tip of the marker pen passes through the marking hole to mark the bottom of the deformed paper support;

[0011] The pressurizing mechanism includes a mounting frame arranged above the workbench, a first lifting assembly is fixedly arranged on the top beam of the mounting frame, a movable frame is arranged at the bottom of the first lifting assembly, a plurality of second lifting assemblies are arranged at the bottom of the movable frame, the bottom of the second lifting assembly is connected to a flexible pressing head through a pressure sensor, the pressure sensor is electrically connected to the second lifting assembly through a control unit, the lower pressing plate corresponds to the flexible pressing head one by one, and the corresponding flexible pressing head and the lower pressing plate are on the same vertical line; when the pressure sensor detects that the pressure reaches a preset pressurization value, the pressure sensor controls the second lifting assembly to stop pressing down through the control unit.

[0012] By adopting the above scheme, the positioning mechanism stabilizes the position of the paper support through the clamping components on both sides to ensure that the paper support will not shift during the detection process, providing a stable basis for subsequent pressurization and deformation monitoring; the auxiliary stabilization mechanism uses the air holes, bronchi and main airways on the working surface, as well as the suction and blowing dual-purpose air pump, to assist in stabilizing or detaching the paper support when necessary; this design not only helps to position the paper support before detection, but also allows the paper support to be easily removed after detection, thereby improving the flexibility and practicality of the equipment; the deformation monitoring mechanism monitors the degree of deformation of the paper support through the monitoring components embedded in the working surface; when the paper support is deformed by pressure, the lower pressure plate will drop accordingly and trigger the marker to mark the bottom of the deformed paper support; this design can intuitively reflect the deformation of the paper support during the pressure process, providing a reliable basis for quality assessment; the setting of the pressure detection spring ensures that the lower pressure plate will only drop when it is subjected to a certain pressure, thereby avoiding mis-marking caused by slight touch or vibration; at the same time, the setting of the preset pressure value also ensures that the paper support will be deformed only when the paper support is deformed. It will only be marked when it is significantly deformed, which improves the accuracy of detection; the pressurizing mechanism realizes precise pressurization of the paper support through the coordinated use of the first lifting assembly and the second lifting assembly; the pressure sensor can monitor the pressure applied to the paper support by the flexible pressing head in real time, and control the second lifting assembly to stop pressing down through the control unit when the preset pressurization value is reached; this design not only ensures the precise control of the pressurization process, but also avoids damage to the paper support or distortion of the detection results caused by excessive pressurization; the setting of the flexible pressing head further enhances the uniformity and stability of the pressurization process and reduces the possibility of pressure concentration; this helps to more accurately evaluate the deformation of the paper support under pressure and improves the accuracy of the detection results; in summary, the quality inspection equipment for the production of paper support effectively avoids the problem of excessive pressure concentration during detection and ensures the accuracy of the detection results through the coordinated work of the positioning mechanism, the auxiliary stabilization mechanism, the deformation monitoring mechanism and the pressurizing mechanism; this design not only improves the quality inspection efficiency of paper support production, but also provides strong support for the quality control of paper support products.

[0013] Preferably, the clamping assembly comprises a telescopic electric cylinder, a movable portion of the telescopic electric cylinder is fixedly provided with a clamping groove, a clamping block is clamped in the clamping groove, and clamping plates are fixedly provided on one side of both sides of the clamping block.

[0014] Preferably, a permanent magnet is provided in the engaging groove, and the engaging block is made of magnetic metal.

[0015] Preferably, the first lifting assembly includes a lifting cylinder, a top fixed portion of the lifting cylinder is fixedly connected to the mounting frame, a bottom movable portion of the lifting cylinder is fixedly connected to the movable frame, and an edge of the movable frame is connected to an edge of the mounting frame via a plurality of sliding telescopic rods.

[0016] Preferably, the second lifting component is configured as a lifting electric cylinder; and the control unit is configured as a small single-chip microcomputer.

[0017] Preferably, the side wall of the marker pen is slidably fitted with the inner wall of the fixed tube, and the bottom of the marker pen is connected to the bottom of the fixed tube via a buffer spring.

[0018] A method for using a quality inspection device for paper tray production, comprising the following steps:

[0019] Step 1: After checking the device, connect the power supply and start the device;

[0020] Step 2: After placing the paper holder on the work surface, control the two clamping components to clamp and fix the two sides of the paper holder. At this time, the air pump sucks air so that the air holes generate negative pressure to adsorb the bottom of the paper holder;

[0021] Step 3, the pressurizing mechanism starts to work, the first lifting assembly drives the movable frame to descend, when the movable frame reaches the preset descending distance, the first lifting assembly stops, and the second lifting assembly drives the flexible pressing head to descend and contact the paper support until the pressure sensor detects that the pressure reaches the preset pressurizing value, and the second lifting assembly stops; in this step, when the deformation degree of the paper support is lower than the preset standard, the pressure applied to the pressure detection spring is lower than the preset pressure value, the tip of the marker pen is located under the lower pressing plate, and there is no mark on the bottom of the paper support; and when the deformation degree of the paper support is equal to or higher than the preset standard, the pressure applied to the pressure detection spring is equal to or higher than the preset pressure value, the tip of the marker pen passes through the marking hole, and the bottom of the paper support contacts the tip of the marker pen to produce a mark;

[0022] Step 4: When the second lowering components all stop, the clamping components release the clamping fixation on both sides of the paper support, and the air pump blows air so that the air holes generate positive pressure to blow air to the bottom of the paper support to make it leave the working surface;

[0023] Step 5. Turn over the paper tray that has completed the above steps and observe it. If there are marks produced by a marker pen, it is judged to be of unqualified quality. Otherwise, it is judged to be of qualified quality.

[0024] The present invention has the following beneficial effects:

[0025] 1. Efficient and accurate quality inspection: The equipment integrates multiple functional modules such as positioning, auxiliary stabilization, deformation monitoring and pressurization, which can comprehensively and accurately evaluate the quality of paper trays. Through precise pressurization control and deformation monitoring, the deformation of paper trays under pressure can be discovered in time, so as to accurately judge whether their quality is qualified.

[0026] 2. Flexible and stable clamping and release: The positioning mechanism uses a clamping component driven by a telescopic electric cylinder, which can flexibly clamp and release the paper holder. The design of the clamping slot and the clamping block, as well as the combination of the permanent magnet and the magnetic metal material, make the clamping process more stable and reliable, and avoid the displacement or falling off of the paper holder during the detection process.

[0027] 3. Intelligent pressure control: The pressure mechanism realizes accurate pressure on the paper tray through the cooperation of the first lifting component and the second lifting component. The pressure sensor and the control unit can monitor and control the pressure process in real time to ensure that the pressure value reaches the preset standard, avoiding the influence of excessive or insufficient pressure on the quality evaluation of the paper tray.

[0028] 4. Intuitive deformation monitoring: The deformation monitoring mechanism uses a marker pen and a lower pressure plate to intuitively reflect the deformation of the paper support under pressure. When the deformation of the paper support reaches or exceeds the preset standard, the marker pen will leave a mark on the bottom of the paper support to facilitate subsequent quality judgment.

[0029] 5. Convenient operation process: The use of the equipment is simple and clear. The quality inspection of the paper tray can be completed by connecting the power supply to start the equipment, placing the paper tray, clamping and fixing, pressurizing and monitoring, releasing the paper tray, turning it over and observing. The whole process is efficient and convenient, which greatly improves the inspection efficiency.

[0030] 6. Strong adaptability: Each component in the equipment, such as the clamping component and the lifting component, can be adjusted and optimized according to actual needs to meet the quality inspection requirements of paper trays of different specifications and materials. At the same time, the intelligent design of the equipment also enables it to automatically adapt to different inspection standards and requirements.

[0031] 7. In summary, the quality inspection equipment for paper tray production and its use method have the beneficial effects of high efficiency and precision, flexibility and stability, intelligent control, intuitive monitoring, convenient operation and strong adaptability, and can significantly improve the quality inspection efficiency and accuracy of paper tray production. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 It is a side cross-sectional view of an embodiment of the present invention.

[0034] Figure 2 It is a cross-sectional view of a monitoring component according to an embodiment of the present invention.

[0035] Figure 3 4 is a cross-sectional view of a clamping assembly according to an embodiment of the present invention.

[0036] Figure 4 It is a cross-sectional view of a monitoring component according to an embodiment of the present invention.

[0037] In the figure: 1. workbench; 201. telescopic electric cylinder; 202. engaging groove; 203. engaging block; 204. clamping plate; 205. permanent magnet; 301. working surface; 302. air hole; 303. bronchus; 304. main air pipe; 305. air pump; 401. fixed tube; 402. marker pen; 404. sliding tube; 405. lower pressure plate; 406. marking hole; 407. movable groove; 408. pressure detection spring; 501. mounting frame; 521. lifting cylinder; 522. sliding telescopic rod; 503. movable frame; 504. second lifting assembly; 505. pressure sensor; 506. flexible pressing head; 6. buffer spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] like Figures 1 to 2 As shown, a quality inspection device for paper tray production includes a workbench 1, on which a positioning mechanism for stabilizing the position of the paper tray, an auxiliary stabilizing mechanism for assisting the stabilization or detachment of the paper tray, a deformation monitoring mechanism for monitoring the degree of deformation of the paper tray, and a pressurizing mechanism for applying pressure to the paper tray are arranged;

[0041] The positioning mechanism includes clamping assemblies located on both sides of the upper surface of the workbench 1; the auxiliary stabilizing mechanism is located between the two clamping assemblies;

[0042] The auxiliary stabilizing mechanism includes a working surface 301 fixedly arranged on the upper surface of the working table 1, the working surface 301 is connected with a plurality of air holes 302, the air holes 302 are connected with bronchi 303, the plurality of bronchi 303 are connected with the same main air pipe 304, and the main air pipe 304 is connected with a suction and blowing dual-purpose air pump 305;

[0043] The deformation monitoring mechanism includes a plurality of monitoring components embedded in the working surface 301, wherein the monitoring components include a fixed tube 401 embedded in the working surface 301, a marker pen 402 is arranged in the fixed tube 401, the tip of the marker pen 402 is upward and the tip of the marker pen 402 is higher than the fixed tube 401 by a certain distance, a sliding tube 404 is slidably attached to the outer wall of the fixed tube 401, a lower pressing plate 405 is arranged on the top of the sliding tube 404, a marking hole 406 for the tip of the marker pen 402 to pass through is opened in the middle of the lower pressing plate 405, and a marking hole 406 for the marker pen 402 to pass through is opened on the working surface 301. The movable groove 407 of the plate 405 is movable, and the bottom of the movable groove 407 is connected to the lower surface of the lower pressing plate 405 through a pressure detection spring 408, and the pressure detection spring 408 is sleeved outside the sliding tube 404; the initial state of the lower pressing plate 405 is at the same horizontal plane as the upper surface of the working surface 301; when the pressure borne by the lower pressing plate 405 is equal to or exceeds the preset pressure value, the pressure detection spring 408 is compressed, the lower pressing plate 405 descends, and the tip of the marker pen 402 passes through the marking hole 406 to mark the bottom of the deformed paper support;

[0044] The pressurizing mechanism includes a mounting frame 501 arranged above the workbench 1, a first lifting assembly is fixedly arranged on the top beam of the mounting frame 501, a movable frame 503 is arranged at the bottom of the first lifting assembly, a plurality of second lifting assemblies 504 are arranged at the bottom of the movable frame 503, the bottom of the second lifting assembly 504 is connected with a flexible pressing head 506 through a pressure sensor 505, the material of the flexible pressing head 506 is latex or rubber, the pressure sensor 505 is electrically connected to the second lifting assembly 504 through a control unit, the lower pressing plate 405 corresponds to the flexible pressing head 506 one by one, and the corresponding flexible pressing head 506 and the lower pressing plate 405 are on the same vertical line; when the pressure sensor 505 detects that the pressure reaches the preset pressurization value, the pressure sensor 505 controls the second lifting assembly 504 to stop pressing down through the control unit.

[0045] like Figures 1 to 2As shown, the positioning mechanism stabilizes the position of the paper support through the clamping components on both sides to ensure that the paper support will not shift during the detection process, providing a stable basis for subsequent pressurization and deformation monitoring; the auxiliary stabilization mechanism uses the air holes 302, bronchial tubes 303 and main air tubes 304 on the working surface 301, as well as the suction and blowing dual-purpose air pump 305 to assist in stabilizing or detaching the paper support when necessary; this design not only helps to position the paper support before detection, but also allows the paper support to be easily removed after detection, thereby improving the flexibility and practicality of the equipment; the deformation monitoring mechanism The deformation degree of the paper support is monitored by a monitoring component embedded in the working surface 301; when the paper support is deformed by pressure, the lower pressure plate 405 will drop accordingly and trigger the marker 402 to mark the bottom of the deformed paper support; this design can intuitively reflect the deformation of the paper support during the pressure process, providing a reliable basis for quality assessment; the setting of the pressure detection spring 408 ensures that the lower pressure plate 405 will only drop when it is subjected to a certain pressure, thereby avoiding mis-marking caused by slight touch or vibration; at the same time, the setting of the preset pressure value also ensures that only The paper support will only be marked when it is significantly deformed, which improves the accuracy of the detection; the pressurizing mechanism realizes accurate pressurization of the paper support through the coordinated use of the first lifting assembly and the second lifting assembly 504; the pressure sensor 505 can monitor the pressure applied to the paper support by the flexible pressing head 506 in real time, and control the second lifting assembly 504 to stop pressing down through the control unit when the preset pressurization value is reached; this design not only ensures the precise control of the pressurization process, but also avoids damage to the paper support or distortion of the detection results caused by excessive pressurization; the setting of the flexible pressing head 506 further enhances the uniformity and stability of the pressurization process and reduces the possibility of pressure concentration; this helps to more accurately evaluate the deformation of the paper support under pressure and improves the accuracy of the detection results; in summary, the quality inspection equipment for the production of paper support effectively avoids the problem of excessive pressure concentration during detection and ensures the accuracy of the detection results through the coordinated work of the positioning mechanism, the auxiliary stabilization mechanism, the deformation monitoring mechanism and the pressurizing mechanism; this design not only improves the quality inspection efficiency of paper support production, but also provides strong support for the quality control of paper support products.

[0046] like Figure 3As shown, the clamping assembly includes a telescopic electric cylinder 201, which serves as a power source of the clamping assembly and is responsible for providing the driving force required for clamping and releasing the paper holder. The movable part of the telescopic electric cylinder 201 (usually referred to as a piston rod or a push rod) can reciprocate along its axial direction under the drive of the motor inside the electric cylinder; the movable part of the telescopic electric cylinder 201 is fixedly provided with a snap-fitting groove 202, and a snap-fitting block 203 is snap-fitted in the snap-fitting groove 202. The snap-fitting groove 202 is a structure fixed on the movable part of the telescopic electric cylinder 201 and is used to cooperate with the snap-fitting block 203. The shape and size of the snap-fitting groove 202 usually match the snap-fitting block 203 to ensure that the two can be stably snapped together; a clamping plate 204 is fixedly provided on one side of both sides of the snap-fitting block 203; the clamping plate 204 is the part that directly contacts the paper holder and is used to clamp and fix the paper holder. The shape and material of the clamping plate 204 are usually designed according to the specifications and materials of the paper holder to ensure a stable and reliable clamping effect; when the paper holder needs to be clamped, the movable part of the telescopic electric cylinder 201 is extended forward under the drive of the motor, pushing the engaging slot 202 and the engaging block 203 to move forward together. Since the engaging block 203 is engaged with the engaging slot 202, the engaging block 203 will drive the clamping plate 204 to move forward together until the clamping plate 204 contacts the paper holder and generates sufficient clamping force. When the paper holder needs to be released, the movable part of the telescopic electric cylinder 201 is retracted backward under the drive of the motor, driving the engaging slot 202 and the engaging block 203 to move backward together. Since the engaging relationship between the engaging block 203 and the engaging slot 202 is released (or automatically separated by other mechanisms such as springs, etc.), the clamping plate 204 will release the paper holder accordingly, allowing it to be freely moved or taken out. By adjusting the stroke and speed of the telescopic electric cylinder 201 and the shape and material of the clamping plate 204, it is possible to achieve stable and reliable clamping of paper holders of different specifications and materials. At the same time, since the clamping relationship between the clamping groove 202 and the clamping block 203 has a certain elasticity or adjustability, the clamping assembly can also adapt to paper holders of different thicknesses or shapes, ensuring the consistency of the clamping effect.

[0047] like Figure 3As shown, a permanent magnet 205 is arranged in the engaging groove 202, and the engaging block 203 is made of magnetic metal; when the engaging block 203 is placed in the engaging groove 202, the engaging block 203 made of magnetic metal will be firmly attracted in the engaging groove 202 due to the magnetic field generated by the permanent magnet 205. This attraction ensures a stable connection between the engaging block 203 and the engaging groove 202, and it is not easy to separate even when subjected to external force. The traditional mechanical engaging method may require a complex structure to achieve the fixing and release of the engaging block 203. The design of the engaging block 203 made of permanent magnet 205 and magnetic metal material greatly simplifies the assembly process. The engaging block 203 can be fixed by magnetic force by simply placing it in the engaging groove 202, without the need for additional mechanical structure or operation. Due to the stability of the magnetic connection, this design can improve the reliability and durability of the clamping assembly. Even if it is used for a long time or subjected to a large external force, the connection between the engaging block 203 and the engaging groove 202 is not easy to loosen or damage. In some cases, it may be necessary to adjust the position of the clamping plate 204 or replace a different type of clamping plate 204 according to the specifications or material of the paper holder. The magnetic connection design allows for easy removal and replacement of the clamping block 203 and the clamping plate 204 thereon without the need for complex disassembly of the entire clamping assembly.

[0048] like Figure 1As shown, the first lifting assembly includes a lifting cylinder 521, which is the core component of the first lifting assembly. The lifting cylinder 521 is firmly connected to the mounting frame 501 through its top fixed portion. The bottom movable portion of the lifting cylinder 521 is connected to the movable frame 503. When the cylinder is working, its piston rod (i.e., the movable portion) will perform telescopic movement under the action of the air pressure inside the cylinder, thereby driving the movable frame 503 to move up and down. The top fixed portion of the lifting cylinder 521 is fixedly connected to the mounting frame 501, and the bottom movable portion of the lifting cylinder 521 is fixedly connected to the movable frame 503. The edge of the movable frame 503 is connected to the edge of the mounting frame 501 through a plurality of sliding telescopic rods 522, and the edge of the movable frame 503 is connected to the edge of the mounting frame 501 through a plurality of sliding telescopic rods 522. These sliding telescopic rods 522 not only provide support for the movable frame 503 in the vertical direction, but also allow the movable frame 503 to be fine-tuned or stabilized in the horizontal direction within a certain range within the mounting frame 501, ensuring stability and accuracy during the lifting process; the second lifting component 504 is set as a lifting electric cylinder, and the lifting electric cylinder is driven by a motor to achieve precise lifting control. Compared with the lifting cylinder 521, the lifting electric cylinder may have higher control accuracy and more stable lifting speed, which is suitable for scenarios with higher requirements for the pressure application process; the control unit is set as a small single-chip microcomputer, which serves as the control core of the entire system. The small single-chip microcomputer is responsible for receiving signals from external devices such as the pressure sensor 505, and controlling the lifting cylinder 521 and the lifting electric cylinder according to the preset program logic. The single-chip microcomputer has the advantages of small size, low power consumption, and flexible control, and is very suitable for such scenarios that require precise control and automated operation.

[0049] A method for using a quality inspection device for paper tray production, comprising the following steps:

[0050] Step 1: After checking the device, connect the power supply and start the device; before officially using the device, first conduct a comprehensive inspection of the device to ensure that all components are in normal condition. Then, connect the power supply and start the device to prepare for the subsequent paper tray quality inspection.

[0051] Step 2: After placing the paper support on the working surface 301, control the two clamping components to clamp and fix the two sides of the paper support. At this time, the air pump 305 inhales air so that the air hole 302 generates negative pressure to adsorb the bottom of the paper support; place the paper support to be tested on the working surface 301. By controlling the two clamping components, the two sides of the paper support are clamped and fixed to ensure that the paper support will not move or deform during the test, thereby affecting the accuracy of the test results. At the same time, start the air pump 305 to perform the suction operation so that the air hole 302 generates negative pressure to adsorb the bottom of the paper support. This step is intended to enhance the stability of the paper support during the test and prevent it from slipping or deflecting due to force.

[0052] Step 3, the pressure mechanism starts to work, and the first lifting assembly drives the movable frame 503 to descend. When the movable frame 503 reaches the preset descending distance, the first lifting assembly stops working. At this time, the second lifting assembly 504 starts to move, driving the flexible pressing head 506 to descend and contact with the paper support. As the flexible pressing head 506 continues to descend, the pressure on the paper support gradually increases. When the pressure detected by the pressure sensor 505 reaches the preset pressure value, the second lifting assembly 504 stops working. In this process, a deformation detection mechanism is also set. When the deformation degree of the paper support is lower than the preset standard, the pressure on the pressure detection spring 408 will be lower than the preset pressure value. At this time, the tip of the marker pen 402 is located below the lower pressing plate 405 and will not contact the bottom of the paper support, so no mark will be generated at the bottom of the paper support. When the deformation degree of the paper support is equal to or higher than the preset standard, the pressure on the pressure detection spring 408 will be equal to or higher than the preset pressure value. At this time, the tip of the marker pen 402 will pass through the marking hole 406, contact the bottom of the paper support and generate a mark. This marking mechanism can visually reflect the deformation of the paper tray, thereby helping to determine whether its quality is qualified.

[0053] Step 4: When the second lowering assembly stops completely, the clamping assembly releases the clamping fixation on both sides of the paper support, and the air pump 305 blows air so that the air hole 302 generates positive pressure to blow air to the bottom of the paper support, so that it is separated from the working surface 301; when the second lifting assembly 504 stops working, the clamping assembly releases the clamping fixation on both sides of the paper support. At the same time, the air pump 305 is started to blow air so that the air hole 302 generates positive pressure to blow air to the bottom of the paper support. This step is intended to use the force of air pressure to enable the paper support to smoothly separate from the working surface 301, which is convenient for subsequent turning over and observation operations.

[0054] Step 5: Turn over the paper tray that has completed the above steps and observe it. If there is a mark made by the marker 402 on the bottom of the paper tray, it means that its deformation degree has reached or exceeded the preset standard, so it is judged that its quality is unqualified. On the contrary, if there is no mark on the bottom of the paper tray, it means that its deformation degree is lower than the preset standard, so it is judged that its quality is qualified. This judgment result can be directly used as the basis for quality control of paper tray production.

[0055] Example 2

[0056] like Figure 4As shown, the side wall of the marker pen 402 is slidably fitted with the inner wall of the fixed tube 401, and the bottom of the marker pen 402 is connected to the bottom of the fixed tube 401 through a buffer spring 6; the design that the bottom of the marker pen 402 is connected to the bottom of the fixed tube 401 through the buffer spring 6 provides an elastic support for the marker pen 402. When the deformation degree of the paper holder reaches or exceeds the preset standard, the pressure detection spring 408 will be subjected to corresponding pressure, thereby pushing the marker pen 402 to move downward. In this process, the buffer spring 6 can absorb part of the impact force and slow down the movement speed of the marker pen 402, thereby preventing the marker pen 402 from being damaged due to sudden force. At the same time, the elastic effect of the buffer spring 6 can also ensure that the marker pen 402 maintains a stable pressure output during the marking process, thereby improving the clarity and accuracy of the marking. This design allows the marker pen 402 and the fixed tube 401 to have a certain adaptability. Even if paper holders of different specifications or materials are encountered during use, the marker pen 402 can maintain a stable marking effect through sliding fit and the action of the buffer spring 6. In addition, the durability of the buffer spring 6 also ensures that the entire marking mechanism can operate stably for a long time, reducing maintenance costs.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all within the scope of protection of the present invention.

Claims

1. A quality inspection device for paper tray production, characterized in that: The workbench (1) comprises a positioning mechanism for stabilizing the position of a paper support, an auxiliary stabilizing mechanism for assisting the stabilization or detachment of the paper support, a deformation monitoring mechanism for monitoring the degree of deformation of the paper support, and a pressurizing mechanism for applying pressure to the paper support; The positioning mechanism comprises clamping assemblies located on both sides of the upper surface of the workbench (1); the auxiliary stabilizing mechanism is located between the two clamping assemblies; The auxiliary stabilization mechanism comprises a working surface (301) fixedly arranged on the upper surface of the working table (1), the working surface (301) is connected with a plurality of air holes (302), the air holes (302) are connected with bronchi (303), the plurality of bronchi (303) are connected with the same main air pipe (304), and the main air pipe (304) is connected with a suction and blowing dual-purpose air pump (305); The deformation monitoring mechanism comprises a plurality of monitoring components embedded in the working surface (301), the monitoring components comprising a fixed tube (401) embedded in the working surface (301), a marker pen (402) being arranged in the fixed tube (401), the tip of the marker pen (402) being upward and being higher than the fixed tube (401) by a certain distance, a sliding tube (404) being slidably attached to the outer wall of the fixed tube (401), a lower pressing plate (405) being arranged on the top of the sliding tube (404), a marking hole (406) being provided in the middle of the lower pressing plate (405) for the tip of the marker pen (402) to pass through, and a marking hole (406) being provided on the working surface (301) for the marker pen (402) to pass through. The lower pressing plate (405) has an active groove (407), the bottom of the active groove (407) is connected to the lower surface of the lower pressing plate (405) through a pressure detection spring (408), and the pressure detection spring (408) is sleeved outside the sliding tube (404); the initial state of the lower pressing plate (405) is in the same horizontal plane as the upper surface of the working surface (301); when the pressure borne by the lower pressing plate (405) is equal to or exceeds a preset pressure value, the pressure detection spring (408) is compressed, the lower pressing plate (405) descends, and the tip of the marker pen (402) passes through the marking hole (406) to mark the deformed bottom of the paper holder; The pressurizing mechanism comprises a mounting frame (501) arranged above the workbench (1), a first lifting assembly being fixedly arranged on the top beam of the mounting frame (501), a movable frame (503) being arranged at the bottom of the first lifting assembly, a plurality of second lifting assemblies (504) being arranged at the bottom of the movable frame (503), the bottom of the second lifting assembly (504) being connected to a flexible pressing head (506) via a pressure sensor (505), the pressure sensor (505) being electrically connected to the second lifting assembly (504) via a control unit, the lower pressing plate (405) corresponding to the flexible pressing head (506) one by one, and the corresponding flexible pressing head (506) and the lower pressing plate (405) being located on the same vertical line; when the pressure sensor (505) detects that the pressure reaches a preset pressurizing value, the pressure sensor (505) controls the second lifting assembly (504) to stop pressing down via the control unit.

2. The quality inspection equipment for paper tray production according to claim 1, characterized in that: The clamping assembly comprises a telescopic electric cylinder (201), a movable portion of the telescopic electric cylinder (201) being fixedly provided with a clamping groove (202), a clamping block (203) being clamped in the clamping groove (202), and clamping plates (204) being fixedly provided on one side of both sides of the clamping block (203).

3. The quality inspection equipment for paper tray production according to claim 2, characterized in that: A permanent magnet (205) is arranged in the engaging groove (202), and the engaging block (203) is made of magnetic metal.

4. The quality inspection equipment for paper tray production according to claim 1, characterized in that: The first lifting assembly comprises a lifting cylinder (521), the top fixed portion of the lifting cylinder (521) is fixedly connected to the mounting frame (501), the bottom movable portion of the lifting cylinder (521) is fixedly connected to the movable frame (503), and the edge of the movable frame (503) is connected to the edge of the mounting frame (501) via a plurality of sliding telescopic rods (522).

5. The quality inspection equipment for paper tray production according to claim 1, characterized in that: The second lifting component (504) is configured as a lifting electric cylinder; and the control unit is configured as a small single-chip microcomputer.

6. The quality inspection equipment for paper tray production according to claim 1, characterized in that: The side wall of the marker pen (402) is slidably fitted with the inner wall of the fixed tube (401), and the bottom of the marker pen (402) is connected with the bottom of the fixed tube (401) via a buffer spring (6).

7. A method for using a quality inspection device for paper tray production, applied to the quality inspection device for paper tray production according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: After checking the device, connect the power supply and start the device; Step 2: After placing the paper holder on the working surface (301), the two clamping components are controlled to clamp and fix the two sides of the paper holder. At this time, the air pump (305) sucks air so that the air hole (302) generates negative pressure to adsorb the bottom of the paper holder; Step 3, the pressurizing mechanism starts to work, the first lifting component drives the movable frame (503) to descend, when the movable frame (503) reaches the preset descending distance, the first lifting component stops, the second lifting component (504) drives the flexible pressing head (506) to descend and contact with the paper support, until the pressure sensor (505) detects that the pressure reaches the preset pressurizing value, and the second lifting component (504) stops; in this step, when the deformation degree of the paper support is lower than the preset standard, the pressure applied to the pressure detection spring (408) is lower than the preset pressure value, the tip of the marker pen (402) is located below the lower pressing plate (405), and there is no mark on the bottom of the paper support; and when the deformation degree of the paper support is equal to or higher than the preset standard, the pressure applied to the pressure detection spring (408) is equal to or higher than the preset pressure value, the tip of the marker pen (402) passes through the marking hole (406), and the bottom of the paper support contacts the tip of the marker pen (402) to produce a mark; Step 4: When the second lowering components all stop, the clamping components release the clamping fixation on both sides of the paper support, and the air pump (305) blows air so that the air holes (302) generate positive pressure to blow air to the bottom of the paper support so that it is separated from the working surface (301); Step 5: Turn over the paper tray that has completed the above steps and observe it. If there is a mark produced by the marker pen (402), it is judged to be unqualified, otherwise it is judged to be qualified.

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