Paper tableware strength detection device

Abstract

The invention discloses a paper tableware strength detection device which comprises a case body, a feeding assembly used for continuous feeding is arranged in the center of the upper surface of the rear end of the case body, and a strength detection assembly used for multi-position detection is arranged below the feeding assembly. And the front surface of the left end of the case main body is hinged with a case door through a hinge. By arranging the strength detection assembly and adopting an opposite clamping detection structure of double-side detection arc plates, uniform lateral pressure can be applied to the side surfaces of the paper bowls, comprehensive detection of the compression resistance and deformation resistance of the side walls of the paper bowls is achieved, the detection coverage range is wide, the overall strength performance of the side faces of the paper bowls can be accurately reflected, and the detection accuracy is high. A flexible contact structure of a silica gel pad and a silica gel sleeve is arranged on the detection arc plate, the detection arc plate can adapt to the cambered surface form of the side wall of the paper bowl, flexible attachment to the surface of the paper bowl is achieved, non-detection damage to the paper bowl caused by rigid contact is avoided, the uniformity of pressure transmission can be guaranteed, and the authenticity and effectiveness of detection data are improved.

Description

Technical Field

[0001] This invention relates to the field of paper tableware testing technology, and in particular to a paper tableware strength testing device. Background Technology

[0002] As a mainstream paper tableware, the strength of the sidewalls and bottom of paper bowls is a core quality indicator that directly affects their performance. Currently, paper bowl strength testing mostly uses manual single-point testing or simple mechanical testing of a single part. The testing process is fragmented, requires manual handling of paper bowls, is inefficient, and is difficult to adapt to large-scale production.

[0003] The rigid detection components of the existing detection device cannot adapt to the side walls of paper bowls with different inclination curvatures. Poor fit can easily lead to non-detectable damage to the paper bowls and distortion of detection data. The feeding process cannot separate stacked paper bowls one by one, which can easily cause problems such as excess material and jamming. In addition, it lacks a material counting function, and the detection data cannot be traced. The discharge process does not have a classification structure, and qualified and unqualified products are discharged together, requiring manual secondary sorting, which increases costs and errors.

[0004] Meanwhile, traditional testing devices often employ multiple independently driven motors, resulting in high energy consumption. Furthermore, their paper bowl detection and positioning accuracy is poor, requiring manual alignment assistance. Overall, their automation and testing precision are insufficient, failing to meet the industry's demands for efficient, accurate, and energy-saving testing. Therefore, providing a paper tableware strength testing device is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One object of the present invention is to provide a paper tableware strength testing device to solve the above-mentioned technical problems.

[0006] A paper tableware strength testing device according to an embodiment of the present invention includes:

[0007] The main body of the chassis has a feeding component for continuous feeding at the center of the upper rear surface. Below the feeding component is a strength detection component for multi-position detection. The front of the left end of the main body of the chassis has a door hinged to it. The bottom of the right side of the main body of the chassis has two discharge ports.

[0008] The strength testing component includes a side strength testing unit, a bottom strength testing unit, and a transport unit. The rear end of the side strength testing unit is fixedly installed at the bottom of the back of the chassis body. The upper end of the bottom strength testing unit is fixedly installed at the right rear of the top surface of the inner cavity of the chassis body and is located directly above the front end of the side strength testing unit. The transport unit is located directly below the side strength testing unit.

[0009] As a preferred embodiment of the present invention, the feeding assembly includes a conveying cylinder. The upper end of the conveying cylinder is embedded in the center of the upper rear surface of the main body of the machine. A baffle groove is provided on the left side of the lower end of the conveying cylinder. A partition plate that slides against the inner wall of the baffle groove is inserted into the inner cavity of the baffle groove. A weighing sensor is embedded in the upper surface of the right end of the partition plate. A partition cylinder is fixedly installed on the left side of the lower end of the conveying cylinder. Both the partition cylinder and the left end of the partition plate are fixedly installed with mating plates by nuts.

[0010] As a preferred technical solution of the present invention, two trapezoidal mounting holes are provided on the upper part of the baffle mounting groove and on both sides of the lower end of the conveying cylinder. An infrared sensor is threadedly connected to the inner cavity of each of the two trapezoidal mounting holes, and the infrared sensor on the left is an infrared transmitter and the one on the right is an infrared receiver.

[0011] As a preferred embodiment of the present invention, four baffle slots are provided above the partition cylinder and on the left side of the conveying cylinder. Each baffle slot is fitted with a partition plate. A weighing sensor is embedded in the upper right surface of each partition plate. A partition cylinder is provided above the left side of each partition plate and connected to the left side of the conveying cylinder. Each partition cylinder and the left side of each partition plate are fixedly fitted with a mating plate by nuts.

[0012] As a preferred embodiment of the present invention, the side strength detection unit includes two limiting rails. The front ends of the two limiting rails are fixedly connected to the back of the lower end of the main body of the chassis. The right ends of the two limiting rails are engaged with a longitudinal adjustment cylinder. A transverse adjustment cylinder is fixedly installed on the lower left side of the back of the main body of the chassis. The piston rod end on the right side of the transverse adjustment cylinder is fixedly connected to the left side of the rear end of the longitudinal adjustment cylinder. A shifting platform with a circular hole is fixedly connected to the front end of the longitudinal adjustment cylinder. A limiting groove is formed at the center of the left end face of the shifting platform. A support plate is engaged in the inner cavity at the right end of the limiting groove. A material picking cylinder is fixedly installed on the left side of the front and rear ends of the shifting platform. The surface of the right end of the material picking cylinder is threadedly connected to the center of the left end face of the support plate.

[0013] As a preferred embodiment of the present invention, two detection cylinders are fixedly installed on the upper surfaces of both ends of the transposition platform via a station plate. A positioning platform is fixedly connected to the end of each detection cylinder that is close to each other. A rotary cylinder is fixedly installed on the front of each positioning platform. A pressure sensor with a built-in connecting rod is fixedly connected to the rear surface of each rotary cylinder. A detection arc plate is fixedly connected to the end of each pressure sensor that is away from the rotary cylinder.

[0014] As a preferred embodiment of the present invention, each of the four corners of the side of the detection arc plate away from the pressure sensor is provided with trapezoidal mounting holes II. Each chamber of each trapezoidal mounting hole II away from the pressure sensor is equipped with a pressure sensor II. Each chamber of each trapezoidal mounting hole II near the pressure sensor is provided with a retainer threaded to the end face of the pressure sensor II. An auxiliary mounting groove I is provided on the outer side of each trapezoidal mounting hole II and on the side of the detection arc plate away from the pressure sensor. A silicone sleeve is threaded to the inner wall of each auxiliary mounting groove I. An auxiliary mounting groove II is provided at the center of the upper surface of each detection arc plate. A silicone pad is snapped into the inner cavity of each auxiliary mounting groove II.

[0015] As a preferred embodiment of the present invention, the bowl bottom strength detection unit includes a detection cylinder two. The upper end of the detection cylinder two is fixedly connected to the top surface of the inner cavity on the right side of the main body of the chassis. The lower end of the detection cylinder two is fixedly connected to an upper mounting plate. Two positioning holes are opened on the upper surfaces at both ends of the upper mounting plate. A miniature camera is threadedly connected to the inner cavity of each positioning hole. A pressure sensor three is fixedly installed at the center of the bottom surface of the upper mounting plate. A detection pressure plate is threadedly connected to the inner wall of the lower end of the pressure sensor three.

[0016] As a preferred embodiment of the present invention, the transport unit includes a first conveyor belt structure, the bottom of which is fixedly connected to the rear right side of the bottom surface of the inner cavity of the main body of the chassis, and a second conveyor belt structure is fixedly connected to the front right side of the bottom surface of the inner cavity of the main body of the chassis. The leftmost sides of the first and second conveyor belt structures are fixedly connected by a synchronous shaft. A servo motor is fixedly installed on the front left side of the second conveyor belt structure, and the output shaft of the servo motor is fixedly connected to the front end of the leftmost guide roller of the second conveyor belt structure. Both the first and second conveyor belt structures are composed of front and rear baffles, several guide rollers, and conveyor belts.

[0017] As a preferred embodiment of the present invention, each of the discharge ports has an inclined discharge hopper fixedly connected to its inner wall.

[0018] The beneficial effects of this invention are:

[0019] This invention utilizes a feeding assembly:

[0020] 1) To achieve continuous and orderly feeding of paper bowls, the stacked paper bowls can be separated one by one and accurately transported to the inspection station through the cooperation of multiple partitions, effectively avoiding the problems of excess material and jamming, and improving the stability and continuity of the feeding process.

[0021] 2) Combining the dual detection of a weighing sensor and an infrared sensor, the weighing sensor can identify the arrival status of a single paper bowl, distinguishing between empty, excess, or abnormal materials, ensuring that subsequent detection units only perform detection operations on qualified single paper bowls, thus improving detection accuracy and reliability; the infrared sensor can count the falling paper bowls in real time, interrupting the sensor signal once a paper bowl falls, achieving accurate statistics of the detected quantity, facilitating the recording and traceability of production data.

[0022] 3) The modular design of the partition cylinder and partition plate allows for flexible adjustment of the partition spacing and feeding rhythm according to the specifications and size of the paper bowl, adapting to the feeding needs of different types of paper bowls and improving the versatility and adaptability of the device.

[0023] 4) The feeding process is automated through the linkage of cylinders and sensors. The entire process of feeding, separating, conveying and counting paper bowls can be completed without manual intervention, reducing manual operation costs and improving the overall automation level and work efficiency of the detection device.

[0024] 5) The feeding station and the inspection station are precisely aligned, and the paper bowl can fall vertically into the center of the inspection position without additional positioning adjustments, simplifying the pre-inspection preparation process and further improving inspection efficiency and positioning accuracy.

[0025] This invention utilizes a strength detection component:

[0026] 1. Beneficial effects of the side strength testing unit:

[0027] 1) The opposing clamping detection structure with double-sided detection arc plates can apply uniform lateral pressure to the side surface of the paper bowl, realizing comprehensive detection of the compressive and deformation resistance of the paper bowl side wall. The detection coverage is wide and can accurately reflect the overall strength performance of the paper bowl side.

[0028] 2) The detection arc plate is equipped with a flexible contact structure of silicone pad and silicone sleeve, which can adapt to the arc shape of the paper bowl side wall and achieve flexible contact with the surface of the paper bowl. This avoids non-detection damage to the paper bowl caused by rigid contact, and ensures the uniformity of pressure transmission, thereby improving the authenticity and effectiveness of the detection data.

[0029] 3) The four-point pressure sensor on the detection arc plate is arranged in two ways. It can judge the clamping status of the paper bowl through multi-point contact feedback. The clamping is confirmed to be in place only when all four points are in effective contact, avoiding detection errors caused by clamping offset or tilting, and further improving the accuracy of side strength detection.

[0030] 4) The rotary cylinder can drive the detection arc plate to adjust the angle, which can adapt to the side wall shape of paper bowls with different inclination and taper. The side strength test of paper bowls of various specifications can be completed without changing the detection parts, which greatly improves the adaptability and detection flexibility of the device.

[0031] 5) The combination of horizontal and vertical adjustment cylinders can realize the position adjustment of the detection arc plate in the horizontal and vertical directions, which can accurately connect the feeding station and the bottom detection station of the paper bowl, and simultaneously complete the paper bowl picking, positioning and transfer actions, realizing the integrated connection of feeding, detection and transfer, simplifying the device structure and process.

[0032] 2. Beneficial effects of the bowl bottom strength testing unit:

[0033] 1) The top-down pressure plate detection structure can apply vertical downward pressure to the bottom of the paper bowl, accurately simulating the stress scenario of the bottom of the paper bowl in actual use, and truly reflecting the compressive strength and anti-breakage performance of the bottom of the paper bowl.

[0034] 2) By combining the pressure data collected in real time by the pressure sensor during the pressing process, the strength threshold of the bottom of the paper bowl can be accurately determined, and the deformation and damage state of the bottom of the bowl under different pressures can be clearly identified. The test results are intuitive and accurate.

[0035] 3) The miniature camera on the upper mounting plate can collect image information of the bowl bottom detection process in real time, assisting in monitoring the deformation and cracking of the paper bowl bottom, realizing dual verification of pressure data and visual inspection, and improving the comprehensiveness and reliability of the bowl bottom strength detection.

[0036] 3. Beneficial effects of transport units:

[0037] 1) The dual conveyor belt structure design enables the sorting and discharge of paper bowls after inspection. Qualified and unqualified products are transported to their respective workstations via different conveyor belts, achieving automatic separation of qualified products and waste materials without the need for manual sorting, thus improving the automation level and sorting efficiency of the discharge process.

[0038] 2) A single servo motor drives the two conveyor belts to operate synchronously via a synchronous shaft. Only a single power source is needed to drive the two conveyor belts, which effectively reduces power consumption, lowers the energy consumption of the device, saves power resources, and ensures the synchronous operation of the two conveyor belts, avoiding paper bowl transfer deviation and jamming.

[0039] 3) The horizontal and vertical adjustment cylinders can control the forward and backward movement of the loading platform, accurately aligning it above different conveyor belts. Combined with the loading platform openings and baffle structure, the paper bowls can fall to the corresponding conveyor belt as needed, ensuring the accuracy of sorting and discharging, and avoiding the mixing of qualified products and waste materials.

[0040] 4) The inclined discharge hopper at the outlet can guide the paper cups after testing to be smoothly discharged from the main body of the machine and transported to the receiving box and waste box respectively, avoiding the accumulation of paper cups at the outlet, ensuring the smoothness of the discharge process, and further improving the continuous working capacity of the device. Attached Figure Description

[0041] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0042] Figure 1 This is a schematic diagram of the structure of a paper tableware strength testing device proposed in this invention;

[0043] Figure 2 This is a schematic diagram of the structure of a paper tableware strength testing device proposed in this invention, viewed from the right side.

[0044] Figure 3 This is a schematic diagram of the structure of a paper tableware strength testing device proposed in this invention, viewed from the rear.

[0045] Figure 4 This invention provides a strength testing device for paper tableware. Figure 3 A structural diagram from the left side.

[0046] Figure 5 This is a front cross-sectional view of a paper tableware strength testing device proposed in this invention.

[0047] Figure 6 This invention provides a strength testing device for paper tableware. Figure 5 A three-dimensional image.

[0048] Figure 7 This invention provides a strength testing device for paper tableware. Figure 6 A structural diagram from the bottom view.

[0049] Figure 8 This is a schematic diagram of the internal structure of the main body of the paper tableware strength testing device proposed in this invention.

[0050] Figure 9 This invention provides a strength testing device for paper tableware. Figure 8 A three-dimensional image.

[0051] Figure 10 This is an exploded view of the feeding component of a paper tableware strength testing device proposed in this invention.

[0052] Figure 11 This is an exploded view of a partial structure of the strength testing component of a paper tableware strength testing device proposed in this invention.

[0053] Figure 12 This invention provides a strength testing device for paper tableware. Figure 11 A structural diagram from the bottom view.

[0054] Figure 13 This is a schematic diagram of the transport unit structure of a paper tableware strength testing device proposed in this invention.

[0055] Figure 14 This invention provides a strength testing device for paper tableware. Figure 6 Enlarged view of point A in the middle.

[0056] Figure 15 This invention provides a strength testing device for paper tableware. Figure 6 Enlarged view of point B in the middle.

[0057] Figure 16 This invention provides a strength testing device for paper tableware. Figure 7 A magnified view of point C in the middle.

[0058] Figure 17 This invention provides a strength testing device for paper tableware. Figure 11 Enlarged view of point D in the middle.

[0059] In the diagram: 1. Main body of the chassis; 2. Feeding assembly; 201. Conveying cylinder; 202. Baffle slot one; 203. Partition plate one; 204. Weighing sensor one; 205. Partition cylinder one; 206. Docking plate one; 207. Trapezoidal mounting hole one; 208. Infrared sensor; 209. Baffle slot two; 210. Partition plate two; 211. Weighing sensor two; 212. Partition cylinder two; 213. Docking plate two; 3. Strength testing assembly; 301. Limiting rail; 302. Longitudinal adjustment cylinder; 303. Lateral adjustment cylinder; 304. Positioning platform; 305. Limiting slot; 306. Support plate; 307. Material picking cylinder; 308. 309. Detection cylinder 1; 310. Positioning mounting platform; 311. Rotary cylinder; 312. Pressure sensor 1; 313. Detection arc plate; 314. Trapezoidal mounting hole 2; 315. Pressure sensor 2; 316. Clamp; 317. Auxiliary mounting slot 1; 318. Silicone sleeve; 319. Auxiliary mounting slot 2; 320. Silicone pad; 321. Detection cylinder 2; 322. Upper mounting plate; 323. Positioning mounting hole; 324. Miniature camera; 325. Pressure sensor 3; 326. Detection pressure plate; 327. Conveyor belt structure 1; 328. Conveyor belt structure 2; 329. Synchronous shaft; 330. Servo motor; 4. Discharge hopper; 5. Box door; 6. Discharge port. Detailed Implementation

[0060] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0061] refer to Figures 1-17 A strength testing device for paper tableware.

[0062] This embodiment includes: a chassis body 1, a feeding assembly 2 for continuous feeding is provided at the center of the upper rear surface of the chassis body 1, a strength detection assembly 3 for multi-position detection is provided below the feeding assembly 2, a door 4 is hinged to the front of the left end of the chassis body 1, and two discharge ports 5 are provided at the bottom of the right side of the chassis body 1; the strength detection assembly 3 includes a side strength detection unit, a bottom strength detection unit and a transport unit, the rear end of the side strength detection unit is fixedly installed at the bottom of the back of the chassis body 1, the upper end of the bottom strength detection unit is fixedly installed at the right rear of the top surface of the inner cavity of the chassis body 1 and is located directly above the front end of the side strength detection unit, and the transport unit is located directly below the side strength detection unit.

[0063] The feeding assembly 2 includes a conveying cylinder 201. The upper end of the conveying cylinder 201 is embedded in the center of the upper rear surface of the main body 1. A baffle groove 202 is provided on the left side of the lower end of the conveying cylinder 201. A partition plate 203 that slides against the inner wall of the baffle groove 202 is inserted into the inner cavity of the baffle groove 202. A weighing sensor 204 is embedded in the upper surface of the right end of the partition plate 203. A partition cylinder 205 is fixedly installed on the left side of the lower end of the conveying cylinder 201. Both the partition cylinder 205 and the left side of the partition plate 203 are fixedly installed with mating plates 206 by nuts. Two trapezoidal holes 207 are provided above the baffle groove 202 and on both sides of the lower end of the conveying cylinder 201. An infrared sensor 208 is threadedly connected to the inner cavity of 7, with the infrared sensor 208 on the left being an infrared transmitter and the one on the right being an infrared receiver; four baffle slots 209 are provided above the partition cylinder 205 and on the left side of the conveying cylinder 201, and a partition plate 210 is snapped into the inner cavity of each baffle slot 209. A weighing sensor 211 is embedded in the upper surface of the right end of each partition plate 210, and a partition cylinder 212 connected to the left side of the conveying cylinder 201 is provided above the left end of each partition plate 210. A mating plate 213 is fixedly installed on the left end surface of each partition cylinder 212 and each partition plate 210 by nuts.

[0064] The side strength testing unit includes two limiting rails 301. The front ends of the two limiting rails 301 are fixedly connected to the back of the lower end of the chassis body 1. The right ends of the two limiting rails 301 are engaged with a longitudinal adjustment cylinder 302. A transverse adjustment cylinder 303 is fixedly installed on the lower left side of the back of the chassis body 1. The piston rod end on the right side of the transverse adjustment cylinder 303 is fixedly connected to the left side of the rear end of the longitudinal adjustment cylinder 302. The front end of the longitudinal adjustment cylinder 302 is fixedly connected to a transposition mounting platform 304 with a built-in round hole. A limiting hole is opened at the center of the left end face of the transposition mounting platform 304. The positioning slot 305 has a support plate 306 engaged in the inner cavity at its right end. A material-picking cylinder 307 is fixedly installed on the left side of the front and rear ends of the transposition platform 304, with the right end of the cylinder 307 threadedly connected to the center of the left end of the support plate 306. Two detection cylinders 308 are fixedly installed on the upper surfaces of both ends of the transposition platform 304 via a station plate. A positioning platform 309 is fixedly connected to the end of each detection cylinder 308 that is close to it. A rotating... Each rotary cylinder 310 has a pressure sensor 311 with a built-in connecting rod fixedly connected to its rear end surface. A detection arc plate 312 is fixedly connected to the end of each pressure sensor 311 away from the rotary cylinder 310. Trapezoidal mounting holes 313 are formed at the four corners of the side of each detection arc plate 312 away from the pressure sensor 311. A pressure sensor 314 is installed in the chamber at the end of each trapezoidal mounting hole 313 away from the pressure sensor 311. Each trapezoidal mounting hole 313 is located near the pressure sensor 311. Each chamber at one end of sensor 311 is provided with a retainer 315 that is threadedly connected to the end face of pressure sensor 314. Each trapezoidal mounting hole 313 has an auxiliary mounting groove 316 on the outer side and on the side of the detection arc plate 312 away from pressure sensor 311. A silicone sleeve 317 is threadedly connected to the inner wall of each auxiliary mounting groove 316. An auxiliary mounting groove 318 is provided at the center of the upper end face of each detection arc plate 312. A silicone pad 319 is snapped into the inner cavity of each auxiliary mounting groove 318.

[0065] The bowl bottom strength testing unit includes a second testing cylinder 320. The upper end of the second testing cylinder 320 is fixedly connected to the top surface of the inner cavity on the right side of the main body 1. The lower end of the second testing cylinder 320 is fixedly connected to an upper mounting plate 321. Two positioning holes 322 are opened on the upper surface of both ends of the upper mounting plate 321. A miniature camera 323 is threadedly connected to the inner cavity of each positioning hole 322. A pressure sensor 324 is fixedly installed at the center of the bottom surface of the upper mounting plate 321. A testing pressure plate 325 is threadedly connected to the inner wall of the lower end of the pressure sensor 324.

[0066] The transport unit includes a first conveyor belt structure 326, the bottom of which is fixedly connected to the rear right side of the bottom surface of the inner cavity of the main body 1. A second conveyor belt structure 327 is fixedly connected to the front right side of the bottom surface of the inner cavity of the main body 1. The leftmost side of the first conveyor belt structure 326 and the second conveyor belt structure 327 are fixedly connected by a synchronous shaft 328. A servo motor 329 is fixedly installed on the front left side of the second conveyor belt structure 327, and the output shaft of the servo motor 329 is fixedly connected to the front end of the leftmost guide roller of the second conveyor belt structure 327. Both the first conveyor belt structure 326 and the second conveyor belt structure 327 are composed of front and rear baffles, several guide rollers and conveyor belts. An inclined discharge hopper 330 is fixedly connected to the inner wall of each discharge port 5.

[0067] Working Principle: After the device is started, the feeding assembly 2 enters the working state. The conveying cylinder 201 serves as the feeding carrier for the paper bowls. Initially, the partition plate 1 203 is in a closed state, while the other multi-layer partition plates 210 move to the left and open. The operator places the stacked paper bowls into the upper part of the conveying cylinder 201. The bottommost paper bowl falls above the partition plate 1 203. At this time, the paper bowls block the transmission and reception signals of the infrared sensor 208 on the conveying cylinder 201, and the infrared sensor 208 completes the first count. The weighing sensor 204 on the upper surface of the partition plate 1 203 collects the weight of the paper bowls in real time. After identifying that a single paper bowl is in place, it feeds back a signal to the control system, which controls the bottom partition cylinder 212 to start, pushing the corresponding partition plate 210 into the inner cavity of the conveying cylinder 201. The device moves to a closed state, creating a limit on the next layer of paper bowls. Then, the partition cylinder 205 is activated, causing the partition plate 203 to move to the left and open. A single paper bowl falls downwards under gravity. After the paper bowl leaves the detection area of ​​the infrared sensor 208, the signal is restored. During continuous feeding, each paper bowl falls through the detection area of ​​the infrared sensor 208. Through the cycle of signal interruption and restoration, the falling paper bowls are counted one by one, accurately counting the total number of paper bowls detected. After confirming that a single paper bowl is successfully delivered to the preset station of the strength detection component 3, the feeding and counting process of a single paper bowl is completed. Subsequently, the partition cylinder 205, partition cylinder 212, partition plate 203, and partition plate 210 operate in a cycle according to the above logic to realize continuous, batch feeding and real-time counting of paper bowls.

[0068] Before the paper bowl is conveyed to the testing station, the horizontal adjustment cylinder 303 is activated, moving the transposition mounting platform 304, connected to the vertical adjustment cylinder 302, to the left and directly below the conveying cylinder 201. This ensures that the center of the transposition mounting platform 304 is on the same vertical line as the paper bowl's falling position on the conveying cylinder 201, guaranteeing that when the partition plate 203 is opened, the paper bowl can fall precisely and vertically onto the surface of the support plate 306, achieving automatic positioning of the paper bowl. After the paper bowl is in place, the horizontal adjustment cylinder 303 is activated again, pushing the transposition mounting platform 304 directly below the bowl bottom strength testing unit, preparing for subsequent testing.

[0069] After the paper bowl is positioned, the strength detection component 3 starts working. First, the side strength detection unit performs side wall strength detection: the longitudinal adjustment cylinder 302 adjusts the longitudinal position of the transposition mounting platform 304, and the material picking cylinder 307 is activated to push the support plate 306 to form a bottom support and positioning for the paper bowl; then, the two side detection cylinders 308 are activated simultaneously, pushing the positioning mounting platform 309 closer to the side wall of the paper bowl, causing the detection arc plate 312 to gradually fit against the side wall of the paper bowl. The silicone sleeve 317 on the detection arc plate 312 contacts the surface of the side wall of the paper bowl, and the pressure sensors 314 at the four corners achieve four-point contact feedback. When all four pressure sensors 314 detect... When a valid contact signal is received, the detection arc plate 312 is confirmed to accurately and centrally clamp the side wall of the paper bowl, avoiding clamping deviation. If the paper bowl is an irregularly shaped structure with an inclined arc, the rotary cylinder 310 can drive the detection arc plate 312 to adjust its angle according to preset parameters, so that the arc of the detection arc plate 312 is perfectly matched with the inclination angle of the side wall of the paper bowl, ensuring the detection fit. After clamping in place, the detection cylinder 308 continuously applies lateral pressure, and the pressure sensor 311 collects the pressure and deformation data of the side wall in real time to complete the detection of the side strength of the paper bowl. After the detection is completed, the detection cylinder 308 resets, and the detection arc plate 312 releases the paper bowl.

[0070] After the side strength test is completed, the bottom strength test unit is activated. The second test cylinder 320 extends downward, driving the third pressure sensor 324 and the test plate 325 to move towards the bottom of the paper bowl. The test plate 325 is gradually pressed down to the surface of the bottom of the paper bowl. The third pressure sensor 324 collects the pressure value in real time during the pressing process. The miniature camera 323 on the upper mounting plate 321 simultaneously captures the deformation and cracking state of the bottom of the bowl. Through the dual feedback of pressure data and visual images, the compressive strength and breaking limit of the bottom of the paper bowl are determined, and the bottom strength test is completed. After the test is completed, the second test cylinder 320 is reset upward, and the test plate 325 is separated from the paper bowl.

[0071] After the inspection is completed, the control system determines whether the paper bowl is qualified or not based on the inspection results. The longitudinal adjustment cylinder 302 controls the shifting platform 304 to move back and forth, aligning the shifting platform 304 above the first conveyor belt structure 326 and the second conveyor belt structure 327 respectively. Then, the material picking cylinder 307 starts to pull the support plate 306 to move to the left, so that the hole in the middle of the shifting platform 304 opens. The paper bowl falls downward under the action of gravity. Qualified products fall into the first conveyor belt structure 326, and unqualified products fall into the second conveyor belt structure 327.

[0072] In the transport unit, a single servo motor 329 drives the first conveyor belt structure 326 and the second conveyor belt structure 327 to rotate synchronously via a synchronous shaft 328, achieving synchronous operation of the two conveyor belts and reducing power consumption. The first conveyor belt structure 326 transports qualified paper bowls to the discharge port 5 at the rear of the main body 1, and guides them through the inclined discharge hopper 330 on the inner wall of the discharge port 5, discharging them into the corresponding receiving box. The second conveyor belt structure 327 transports unqualified paper bowls to the discharge port 5 at the front of the main body 1, and guides them through the inclined discharge hopper 330, discharging them into the waste box, completing the sorting and discharge.

[0073] The device coordinates the linkage rhythm of the feeding component 2, the strength detection component 3, and the transportation unit through the control system, and cyclically executes the above-mentioned feeding, counting, positioning, side detection, bowl bottom detection, and sorting and discharging process to realize continuous, automated, and classified detection of the strength of the paper bowl's side and bottom, as well as accurate statistics of the detection quantity.

[0074] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A strength testing device for paper tableware, characterized in that, include: The main body of the chassis (1) has a feeding component (2) for continuous feeding at the center of the upper rear surface of the main body of the chassis (1), and a strength detection component (3) for multi-position detection is provided below the feeding component (2). The front of the left end of the main body of the chassis (1) is hinged with a door (4), and two discharge ports (5) are opened at the bottom of the right side of the main body of the chassis (1). The strength testing component (3) includes a side strength testing unit, a bowl bottom strength testing unit and a transport unit. The rear end of the side strength testing unit is fixedly installed at the bottom of the back of the chassis body (1). The upper end of the bowl bottom strength testing unit is fixedly installed at the right rear of the top surface of the inner cavity of the chassis body (1) and is located directly above the front end of the side strength testing unit. The transport unit is located directly below the side strength testing unit.

2. The paper tableware strength testing device according to claim 1, characterized in that, The feeding assembly (2) includes a conveying cylinder (201). The upper end of the conveying cylinder (201) is embedded in the center of the upper rear surface of the main body (1) of the chassis. A baffle groove (202) is provided on the left side of the lower end of the conveying cylinder (201). A partition plate (203) that slides against the inner wall of the baffle groove (202) is inserted into the inner cavity of the partition plate (202). A weighing sensor (204) is embedded in the upper surface of the right end of the partition plate (203). A partition cylinder (205) is fixedly installed on the left side of the lower end of the conveying cylinder (201). A docking plate (206) is fixedly installed on the left side of both the partition cylinder (205) and the partition plate (203) by nuts.

3. The paper tableware strength testing device according to claim 2, characterized in that, Two trapezoidal mounting holes (207) are provided on the two sides above the baffle mounting groove (202) and at the lower end of the conveying cylinder (201). An infrared sensor (208) is threaded into the inner cavity of each of the two trapezoidal mounting holes (207). The infrared sensor (208) on the left is an infrared transmitter and the one on the right is an infrared receiver.

4. The paper tableware strength testing device according to claim 3, characterized in that, Four baffle slots (209) are provided above the partition cylinder (205) and on the left side of the conveying cylinder (201). Each baffle slot (209) has a partition plate (210) inside it. Each partition plate (210) has a weighing sensor (211) embedded in the upper surface of the right end of the upper surface of the right end of the upper surface of the upper surface of the upper surface of the lower surface of the upper surface of the lower surface of the upper surface of the left end ...

5. The paper tableware strength testing device according to claim 1, characterized in that, The side strength detection unit includes two limiting rails (301). The front ends of the two limiting rails (301) are fixedly connected to the back of the lower end of the chassis body (1). The right ends of the two limiting rails (301) are engaged with a longitudinal adjustment cylinder (302). A transverse adjustment cylinder (303) is fixedly installed on the lower left side of the back of the chassis body (1). The piston rod end on the right side of the transverse adjustment cylinder (303) is fixedly connected to the left side of the rear end of the longitudinal adjustment cylinder (302). The front end of the cylinder (302) is fixedly connected to a transposition mounting platform (304) with a round hole. A limiting mounting groove (305) is opened at the center of the left end face of the transposition mounting platform (304). A support plate (306) is engaged in the inner cavity of the right end of the limiting mounting groove (305). A picking cylinder (307) is fixedly installed on the left side of the front end and rear end of the transposition mounting platform (304), and the surface of the right end of the picking cylinder (307) is threadedly connected to the center of the left end face of the support plate (306).

6. The paper tableware strength testing device according to claim 5, characterized in that, Two detection cylinders (308) are fixedly installed on the upper surfaces of both ends of the transposition platform (304) via a station plate. A positioning platform (309) is fixedly connected to the end of each of the two detection cylinders (308) that is close to each other. A rotary cylinder (310) is fixedly installed on the front of each positioning platform (309). A pressure sensor (311) with a connecting rod is fixedly connected to the rear surface of each rotary cylinder (310). A detection arc plate (312) is fixedly connected to the end of each pressure sensor (311) that is away from the rotary cylinder (310).

7. The paper tableware strength testing device according to claim 6, characterized in that, Each of the four corners of the side of the detection arc plate (312) away from the pressure sensor (311) is provided with trapezoidal mounting holes (313). A pressure sensor (314) is installed in the cavity at the end of each trapezoidal mounting hole (313) away from the pressure sensor (311). A retainer (315) is provided in the cavity at the end of each trapezoidal mounting hole (313) near the pressure sensor (311) and is threaded to the end face of the pressure sensor (314). An auxiliary mounting groove (316) is provided on the outer side of the trapezoidal mounting hole 2 (313) and on the side of the detection arc plate (312) away from the pressure sensor 1 (311). A silicone sleeve (317) is threadedly connected to the inner wall of each auxiliary mounting groove 1 (316). An auxiliary mounting groove 2 (318) is provided at the center of the upper end face of each detection arc plate (312). A silicone pad (319) is snapped into the inner cavity of each auxiliary mounting groove 2 (318).

8. The paper tableware strength testing device according to claim 7, characterized in that, The bowl bottom strength detection unit includes a detection cylinder two (320). The upper end of the detection cylinder two (320) is fixedly connected to the top surface of the inner cavity of the right end of the main body of the chassis (1). The lower end of the detection cylinder two (320) is fixedly connected to an upper mounting plate (321). Two positioning holes (322) are opened on the upper surface of both ends of the upper mounting plate (321). A miniature camera (323) is threadedly connected to the inner cavity of each positioning hole (322). A pressure sensor three (324) is fixedly installed at the center of the bottom surface of the upper mounting plate (322). A detection pressure plate (325) is threadedly connected to the inner wall of the lower end of the pressure sensor three (324).

9. The paper tableware strength testing device according to claim 8, characterized in that, The transport unit includes a first conveyor belt structure (326), the bottom of which is fixedly connected to the right rear of the bottom surface of the inner cavity of the main body of the chassis (1), and a second conveyor belt structure (327) is fixedly connected to the right front of the bottom surface of the inner cavity of the main body of the chassis (1). The leftmost side of the first conveyor belt structure (326) and the second conveyor belt structure (327) are fixedly connected by a synchronous shaft (328) at one end of each other. A servo motor (329) is fixedly installed on the front of the left end of the second conveyor belt structure (327), and the output shaft of the servo motor (329) is fixedly connected to the front end of the leftmost guide roller of the second conveyor belt structure (327). The first conveyor belt structure (326) and the second conveyor belt structure (327) are both composed of front and rear baffles, several guide rollers and conveyor belts.

10. A paper tableware strength testing device according to claim 9, characterized in that, Each of the discharge ports (5) has an inclined discharge hopper (330) fixedly connected to its inner wall.

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