Hardness detection device and method for plastic particle production

Abstract

The invention relates to the technical field of plastic particle hardness detection, in particular to a hardness detection device and method for plastic particle production, the hardness detection device comprises a rotary operation table and three connecting supports, the three connecting supports are arranged on a top rotating shaft of the rotary operation table, and the hardness detection device further comprises a test assembly; the test assembly comprises a detection box, a ventilation support, a temperature adjusting device, a temperature sensor, a sealing component and a placing component. The detection box is fixedly installed on the rotary operation table, the two ventilation supports are fixedly installed on the top of the detection box, the temperature adjusting device is connected with the two ventilation supports, the temperature sensor is electrically connected with the temperature adjusting device and installed on the detection box, and the sealing component is connected with the detection box. The detection environment of the plastic particles can be changed according to the actual detection requirements of an operator through arranged components, so that the hardness of the plastic particles in different detection environments is detected, and the overall flexibility of the device is higher during actual detection.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic particle hardness detection, and in particular to a hardness detection device and method for plastic particle production. Background Art

[0002] Hardness testing is an important means of measuring the ability of plastic particles to resist external compression and deformation, and is a key indicator for evaluating their quality and scope of use. At the same time, the hardness of plastic particles is closely related to their processing performance and use performance. Plastic particles with higher hardness may show better wear resistance and impact resistance during processing, while particles with lower hardness may have better flexibility and plasticity. Therefore, hardness testing can predict the performance of plastic particles during processing and use, and provide guidance for subsequent processing and use.

[0003] Existing hardness testing devices mainly determine the hardness value of plastic particles by applying a certain pressure and measuring the indentation depth or the volume after compression deformation. Since the performance of plastic particles will change under different environmental conditions, most existing hardness testing devices can only test plastic particles under a certain specified state, which makes the entire device less flexible in actual testing and cannot meet the hardness testing of plastic particles under a variety of specified environments. Summary of the invention

[0004] The object of the present invention is to provide a hardness detection device and method for plastic particle production, which can change the detection environment of plastic particles according to the actual detection needs of the operator through the provided components, and then detect the hardness of plastic particles under different detection environments, so that the overall flexibility of the device is higher during actual detection.

[0005] To achieve the above-mentioned object, the present invention provides a hardness testing device for plastic granule production, comprising a rotating operating table and a connecting bracket, wherein three connecting brackets are arranged on the top rotating shaft of the rotating operating table, and further comprising a testing assembly;

[0006] The test assembly includes a detection box, a ventilation bracket, a temperature control device, a temperature sensor, a sealing component and a placement component;

[0007] The detection box is fixedly installed on the rotating operating table, the two ventilation brackets are fixedly installed on the top of the detection box, the temperature control device is connected to the two ventilation brackets and is installed on one side of the detection box, the temperature sensor is electrically connected to the temperature control device, and the temperature sensor is installed on the detection box. The sealing component is connected to the detection box and is used to separate the detection environment in the detection box from the external environment. The placement component is provided on each of the connecting brackets, and the placement component is used to complete the placement of the designated detection workpiece.

[0008] Wherein, the sealing component includes a blocking bracket, a driving screw and a driving motor, the blocking bracket is slidably mounted on the detection box; the driving screw is threadedly connected to the blocking bracket and rotatably mounted on the detection box; the output shaft of the driving motor is connected to the driving screw, and the driving motor is fixedly mounted on the detection box.

[0009] Among them, the placing component includes a placing table, a downward pressure spring, a clamping component and a lifting component, and the placing table is slidably installed on the connecting bracket; the two sides of the downward pressure spring are respectively connected to the placing table and the connecting bracket; the clamping component is arranged on the placing table for clamping the placed workpiece; the lifting component is connected to the connecting bracket for lifting the placing table arranged on the connecting bracket.

[0010] Among them, the clamping component includes a clamping plate, a bidirectional screw and an adjustment motor, the two clamping plates are slidably installed on both sides of the storage table; the two sides of the bidirectional screw are respectively threadedly connected to the two clamping plates, and the bidirectional screw is rotatably installed on one side of the storage table; the output shaft of the adjustment motor is connected to the bidirectional screw, and the adjustment motor is fixedly installed on one side of the storage table.

[0011] Among them, the lifting component includes a lifting frame, a pushing bracket, a driving member and a pushing cylinder, the lifting frame is slidably installed on the side of the connecting bracket close to the storage table; the pushing bracket is slidably installed on the connecting bracket; one side of the driving member is rotatably connected to the lifting frame, and the other side of the driving member is rotatably connected to the pushing bracket; the output end of the pushing cylinder is connected to the pushing bracket, and the pushing cylinder is fixedly installed on the connecting bracket.

[0012] Wherein, the test assembly also includes a downward pressure cylinder, a pressing frame, a pressing block, a pressure sensor, a displacement detection component, a blow-off component and an automatic control component, wherein the downward pressure cylinder is fixedly installed on the detection box; the pressing frame is fixedly installed on the output end of the downward pressure cylinder; the pressing block is slidably arranged on the pressing frame; the pressure sensor is installed on the side of the pressing frame close to the pressing block; the displacement detection component is connected to the pressing frame for detecting the actual downward pressure distance; the automatic control component is connected to the storage table for controlling the temperature control equipment to adjust the environment according to the actual detection situation of the workpiece to be tested; the blow-off component is connected to the rotating operating table for unloading and collecting the workpiece after detection.

[0013] Among them, the displacement detection component includes an insertion box, an infrared rangefinder and a sensing bracket, the insertion box is fixedly installed on the detection box; the infrared rangefinder is installed on the insertion box; the sensing bracket is slidably connected to the insertion box and fixedly installed on one side of the pressing frame.

[0014] Among them, the blowing-off component includes a collection frame, a resisting bracket, a blowing rack and a blow-out fan, the collection frame is placed on the rotating operating table; the resisting bracket is fixedly installed on the rotating operating table; the blow-out rack is fixedly installed on the resisting bracket; the blow-out fan is connected to the blow-out rack and installed on the resisting bracket.

[0015] Among them, the self-control component includes a QR code information generation module and a scanning control module, and the QR code information generation module is arranged on the side of each storage table; the scanning control module is electrically connected to the temperature control device, and the scanning control module is arranged on the detection box.

[0016] The present invention provides a hardness testing device and method for plastic particle production. An operator first places a workpiece to be tested by means of the placing component, then rotates the corresponding connecting bracket into the testing box by means of the rotating operating table, and then seals the testing box by means of the sealing component. After the testing box is sealed, the testing environment temperature inside the testing box can be adjusted by means of the two ventilation brackets provided in cooperation with the temperature control device. When the internal environment temperature of the testing box is adjusted, the internal temperature can be monitored by means of the temperature sensor. When the monitored temperature is within a set range, the temperature sensor can feed back the monitored temperature information to the temperature control device, so that the temperature control device stops working, thereby ensuring the stability of the testing environment inside the testing box, so that the user can test the hardness of plastic particles under different environments according to the actual operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 It is a schematic diagram of the overall structure of the hardness detection device for plastic particle production of the present invention.

[0019] Figure 2 It is a schematic diagram of the installation structure of the blow-off component of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the detection box of the present invention when it is cut open.

[0021] Figure 4It is a schematic diagram of the structure of the detection box and the barrier support of the present invention when they are cut apart.

[0022] Figure 5 The present invention Figure 4 Enlarged view of point A.

[0023] Figure 6 It is a schematic diagram of the structure of the cross-section of the connecting bracket of the present invention.

[0024] Figure 7 The present invention Figure 6 Enlarged view of point B.

[0025] Figure 8 It is a schematic diagram of the installation structure of the infrared rangefinder of the present invention.

[0026] Fig. 9 The present invention is a flow chart of a hardness testing method for plastic granule production.

[0027] In the figure: 101-rotating operating table, 102-connecting bracket, 103-detection box, 104-ventilation bracket, 105-temperature adjustment equipment, 106-temperature sensor, 201-barrier bracket, 202-driving screw, 203-driving motor, 301-storage table, 302-downward pressure spring, 303-clamp, 304-bidirectional screw, 305-adjustment motor, 306-lifting frame, 307-pushing bracket, 308-driving member, 309-pushing cylinder, 401-downward pressure cylinder, 402-pressing frame, 403-pressing block, 404-pressure sensor, 501-insertion box, 502-infrared rangefinder, 503-sensing bracket, 601-collection frame, 602-resistance bracket, 603-blowing rack, 604-blowing fan, 701-two-dimensional code information generation module, 702-scanning control module. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0030] See also Figures 1 to 8The present invention provides a hardness testing device for plastic granule production: comprising a rotating operating table 101, a connecting bracket 102 and a testing assembly, wherein the testing assembly comprises a testing box 103, a ventilation bracket 104, a temperature regulating device 105, a temperature sensor 106, a sealing component and a placing component, wherein the sealing component comprises a blocking bracket 201, a driving screw 202 and a driving motor 203, wherein the placing component comprises a placing table 301, a pressing spring 302, a clamping component and a lifting component, wherein the clamping component comprises a clamping plate 303, a bidirectional screw 304 and an adjusting motor 305, wherein the lifting ... sealing component and a placing component, wherein the sealing component comprises a blocking bracket 201, a driving screw 202 and a driving motor 203, wherein the lifting component comprises a placing table 301, a pressing spring 302, a clamping component and a lifting component, wherein the clamping component comprises a clamping plate 303, a bidirectional screw 304 and an adjusting motor 305, wherein the lifting component comprises a clamping plate 303, a bidirectional screw 304 and an adjusting motor 305, wherein the lifting component comprises a clamping plate 303, a bidirectional screw 304 and an adjusting motor 305, wherein the lifting component comprises a sealing component and a placing component, wherein the sealing component comprises a blocking bracket 201, a driving screw 202 and a driving motor 203, wherein the lifting component comprises a The lifting component includes a lifting frame 306, a pushing bracket 307, a driving member 308 and a pushing cylinder 309. The above-mentioned solution solves the problem that the existing hardness testing device mainly determines the hardness value of the plastic particles by applying a certain pressure and measuring the indentation depth or the volume after compression deformation. Since the performance of plastic particles under different environmental conditions will change to a certain extent, and most of the existing hardness testing devices can only test plastic particles in a certain specified state, the flexibility of the entire device is low in actual testing, and it cannot meet the problem of plastic particle hardness testing under a variety of specified environments.

[0031] Furthermore, the inspection box 103 is fixedly installed on the rotating operating table 101, the two ventilation brackets 104 are fixedly installed on the top of the inspection box 103, the temperature control device 105 is connected to the two ventilation brackets 104 and installed on one side of the inspection box 103, the temperature sensor 106 is electrically connected to the temperature control device 105, and the temperature sensor 106 is installed on the inspection box 103, the sealing component is connected to the inspection box 103, and is used to separate the inspection environment in the inspection box 103 from the external environment, and the placement component is provided on each of the connecting brackets 102, and the placement component is used to complete the placement of the designated inspection workpiece.

[0032] Specifically, a rotating shaft that can be rotated is provided on the top of the rotating operating table 101, and the three connecting brackets 102 are fixed on the rotating shaft on the top of the rotating operating table 101. The adjacent angles of the three connecting brackets 102 are 120 degrees. The user can drive the three connecting brackets 102 by rotating the rotating shaft on the top of the rotating operating table 101, thereby completing the station conversion of the three connecting brackets 102;

[0033] The detection box 103 is arranged on the operating table of the rotating operating table 101, and a corresponding step support seat is arranged at the bottom of the detection box 103. The detection box 103 is also provided with two ventilation brackets 104, the temperature control device 105 and the temperature sensor 106. An air pump and corresponding cooling and heating modules are arranged inside the temperature control device 105. The two ventilation brackets 104 are respectively connected to the air inlet and the air outlet of the temperature control device 105. The air pump inside the temperature control device 105 guides the airflow to enter from the corresponding ventilation bracket 104 and then leads out through another ventilation bracket 104. The conducted airflow can be adjusted to the corresponding temperature through the cooling and heating modules inside the temperature control device 105, thereby realizing the adjustment of the detection temperature environment inside the detection box 103.

[0034] In actual use, the operator first places the workpiece to be inspected through the placement component, and then rotates the corresponding connecting bracket 102 into the inspection box 103 through the rotating operating table 101, and then seals the inspection box 103 through the sealing component. After the inspection box 103 is sealed, the temperature of the inspection environment inside the inspection box 103 can be adjusted by the two ventilation brackets 104 provided in cooperation with the temperature control device 105. When the internal environment temperature of the inspection box 103 is adjusted, the internal temperature can be monitored by the temperature sensor 106. Then, when the monitored temperature is within the set range, the temperature sensor 106 can feed back the monitored temperature information to the temperature control device 105, so that the temperature control device 105 stops working, thereby ensuring the stability of the inspection environment inside the inspection box 103, so that the user can detect the hardness of plastic particles under different environments according to the actual operating conditions.

[0035] Furthermore, the barrier bracket 201 is slidably mounted on the detection box 103; the driving screw 202 is threadedly connected to the barrier bracket 201 and rotatably mounted on the detection box 103; the output shaft of the driving motor 203 is connected to the driving screw 202, and the driving motor 203 is fixedly mounted on the detection box 103.

[0036] When this embodiment is in use, the blocking bracket 201 is arranged on the detection box 103, and a threaded hole for cooperating with the driving screw 202 is arranged on the inner side of the blocking bracket 201. The driving screw 202 is driven by the driving motor 203, so that the user can drive the blocking bracket 201 through the driving motor 203 and the driving screw 202, and then the sealing and opening of the detection box 103 are completed by the up and down movement of the blocking bracket 201. When the rotating operating table 101 drives the connecting bracket 102 to transfer the workpiece after loading, the blocking bracket 201 will be in a lifting state, so that the connecting bracket 102 can drive the workpiece into the corresponding detection area of ​​the detection box 103. When detection is required, the blocking bracket 201 will move down, thereby blocking the open area of ​​the detection box 103, so that the temperature control device 105 will not be interfered by the external environment when adjusting the internal detection environment of the detection box 103.

[0037] Furthermore, the storage table 301 is slidably mounted on the connecting bracket 102; the two sides of the downward pressure spring 302 are respectively connected to the storage table 301 and the connecting bracket 102; the clamping component is arranged on the storage table 301, and is used to clamp the placed workpiece; the lifting component is connected to the connecting bracket 102, and is used to lift the storage table 301 arranged on the connecting bracket 102.

[0038] Furthermore, the two clamps 303 are slidably installed on both sides of the storage platform 301; the two sides of the bidirectional screw 304 are respectively threadedly connected to the two clamps 303, and the bidirectional screw 304 is rotatably installed on one side of the storage platform 301; the output shaft of the adjustment motor 305 is connected to the bidirectional screw 304, and the adjustment motor is fixedly installed on one side of the storage platform 301.

[0039] Furthermore, the lifting frame 306 is slidably installed on the side of the connecting bracket 102 close to the storage table 301; the pushing bracket 307 is slidably installed on the connecting bracket 102; one side of the driving member 308 is rotatably connected to the lifting frame 306, and the other side of the driving member 308 is rotatably connected to the pushing bracket 307; the output end of the pushing cylinder 309 is connected to the pushing bracket 307, and the pushing cylinder 309 is fixedly installed on the connecting bracket 102.

[0040] When the present embodiment is in use, the storage platform 301 is slidably arranged on each of the connecting brackets 102, and each of the storage platforms 301 is also provided with a downward pressure spring 302 in a guide groove for sliding with the connecting bracket 102. The downward pressure spring 302 can continuously apply a downward force to the storage platform 301, and the lifting frame 306 is also provided on both sides of each of the connecting brackets 102. The storage platform 301 can be lifted by driving the lifting frame 306. The driving member 308 is rotatably mounted at the bottom of each lifting frame 306, and the two driving members 308 are rotatably arranged on the corresponding lifting frame 306 and the pushing bracket 307 on both sides. The pushing bracket 307 is driven by the pushing cylinder 309. When the pushing cylinder 309 drives the pushing bracket 307 to move, the pushing bracket 307 can drive the lifting frame 306 to move up and down on the connecting bracket 102 by driving the driving member 308;

[0041] By using the lifting frame 306 to lift the storage table 301, the bottom surface of the lifting frame 306 and the bottom surface of the connecting bracket 102 can be kept at the same level when the connecting bracket 102 rotates. Then, when the connecting bracket 102 rotates into the detection box 103 and needs to detect the placed workpiece, the lifting frame 306 can move down. Thereafter, the storage table 301 will cooperate with the step support seat provided at the bottom of the detection box 103 under the action of the downward pressure spring 302, and the storage table 301 is supported by the step support seat, so that the storage table 301 can maintain the stability of the support process during the subsequent downward pressure process. When the detection is completed, the storage table 301 is lifted by the lifting frame 306 to ensure that the storage table 301 and the connecting bracket 102 rotate normally.

[0042] Two clamping plates 303 are slidably mounted on the storage table 301, and the two clamping plates 303 are driven by the bidirectional screw 304 and the adjustment motor 305. The threads on both sides of the bidirectional screw 304 have opposite rotation directions, so as to drive the two clamping plates 303 to clamp the workpiece to be inspected placed on the storage table 301. It should be noted that the workpiece is clamped by the clamping plates 303 during the material loading and transfer process and before the inspection begins. When the inspection is carried out, the two clamping plates 303 need to be moved to both sides to avoid interference with the inspection of the workpiece. After the inspection, the workpiece does not need to be limited during the transfer process.

[0043] Preferably, the test assembly provided by the present invention also includes a downward pressure cylinder 401, a pressing frame 402, a pressing block 403, a pressure sensor 404, a displacement detection component, a blowing component and an automatic control component, the displacement detection component includes an insertion box 501, an infrared rangefinder 502 and an induction bracket 503, the blowing component includes a collection frame 601, a resisting bracket 602, a blowing frame 603 and a blowing fan 604, and the automatic control component includes a QR code information generation module 701 and a scanning control module 702.

[0044] Furthermore, the downward pressure cylinder 401 is fixedly installed on the detection box 103; the pressing frame 402 is fixedly installed on the output end of the downward pressure cylinder 401; the pressure block 403 is slidably arranged on the pressing frame 402; the pressure sensor 404 is installed on the side of the pressing frame 402 close to the pressure block 403; the displacement detection component is connected to the pressing frame 402, and is used to detect the actual downward pressure distance; the automatic control component is connected to the storage table 301, and is used to control the temperature control device 105 to adjust the environment according to the actual detection situation of the workpiece to be tested; the blowing component is connected to the rotating operating table 101, and is used to unload and collect the workpiece after detection.

[0045] Furthermore, the insertion box 501 is fixedly mounted on the detection box 103 ; the infrared rangefinder 502 is mounted on the insertion box 501 ; the sensing bracket 503 is slidably connected to the insertion box 501 , and is fixedly mounted on one side of the pressing frame 402 .

[0046] When the present embodiment is in use, the pressing frame 402 is fixed to the bottom of the output end of the downward pressure cylinder 401, the pressing block 403 is slidably arranged on the pressing frame 402, the pressure sensor 404 is arranged in the area where the pressing frame 402 cooperates with the pressing block 403, and the pressure sensor 404 can detect the pressure applied by the pressing frame 402 on the pressing block 403, the insertion box 501 is arranged on the detection box 103, the infrared rangefinder 502 is fixedly installed on the top of the insertion box 501, and the induction bracket 503 is also slidably installed inside the insertion box 501, and the induction bracket 503 is fixedly arranged on one side of the pressing frame 402;

[0047] During actual detection, the downward pressure cylinder 401 drives the pressing frame 402 to move, and the pressing block 403 contacts the surface of the workpiece to be detected under the drive of the pressing frame 402. At the same time, the sensing bracket 503 also moves under the drive of the pressing frame 402, and the infrared rangefinder 502 can monitor the moving distance of the sensing bracket 503 in real time when the sensing bracket 503 moves. In this way, the hardness of the corresponding workpiece can be detected by the pressure detected by the pressure sensor 404 and the distance detected by the infrared rangefinder 502. The operator can analyze and judge the data detected in the entire detection process by establishing the pressure value as the horizontal coordinate and the detected moving distance as the vertical coordinate, and then obtain the hardness of the specified workpiece.

[0048] Furthermore, the collection frame 601 is placed on the rotating operating table 101; the resisting bracket 602 is fixedly installed on the rotating operating table 101; the blowing rack 603 is fixedly installed on the resisting bracket 602; the blowing fan 604 is connected to the blowing rack 603 and installed on the resisting bracket 602.

[0049] Furthermore, the two-dimensional code information generating module 701 is disposed on the side of each of the storage tables 301 ; the scanning control module 702 is electrically connected to the temperature regulating device 105 , and the scanning control module 702 is disposed on the detection box 103 .

[0050] When the present embodiment is in use, the collection frame 601 is arranged at the bottom of the moving track between the blocking bracket 602 and the detection box 103. The collection frame 601 can be used to collect the workpieces that are not limited on the storage table 301 after the detection is completed. When the workpieces are located on the blocking bracket 602, the workpieces that have not rolled down from the storage table 301 can be blown into the collection frame 601 under the cooperation of the blowing rack 603 and the blowing fan 604, thereby completing the automatic unloading of the workpieces.

[0051] The two-dimensional code information generation module 701 is mainly used for the user to enter the detection conditions in advance according to the detection conditions of the workpiece to be detected, and the scanning control module 702 is used to extract the entered information, and then control the temperature control device 105 to adjust the specified temperature range. The two-dimensional code information generation module 701 is provided with a two-dimensional code online generation panel. The user can input the specified temperature condition information and the basic information of the workpiece to be detected into the two-dimensional code information generation module 701 through the control host, and then the two-dimensional code information generation module 701 will convert the information into a two-dimensional code. When the connecting bracket 102 drives the corresponding detection workpiece to be in the detection box 103 for hardness detection, the scanning control module 702 can identify the internal information by scanning the two-dimensional code generated by the two-dimensional code information generation module 701, and then complete the adjustment of the internal detection environment through the temperature control device 105 according to the recorded temperature condition information. At the same time, it can also establish a detection database for the corresponding workpiece by extracting the basic information of the detection workpiece, and then store the detection data in the entire detection process into the corresponding database, so as to facilitate the subsequent operator to retrieve and analyze in real time;

[0052] During the above-mentioned detection process, the position where the detection box 103 is installed is the detection area, the position where the resisting bracket 602 is installed is the blowing and unloading area, and the remaining resisting brackets 602 can be set up as information entry areas. In this way, continuous automatic detection of multiple types of workpieces can be achieved by setting the three connecting brackets 102 in conjunction with the corresponding three intervals. The operator only needs to clamp the workpiece in the information entry area and enter the corresponding information. Subsequent detection and unloading can be automatically completed through the corresponding components.

[0053] See also Fig. 9 A method for detecting hardness of plastic particles for production, using the hardness detection device for plastic particles for production, comprises the following steps:

[0054] S1: Clamp and install the workpiece to be inspected by placing components;

[0055] Specifically, the placement component includes a storage platform 301, a downward pressure spring 302, a clamping component and a lifting component. The clamping component includes a clamping plate 303, a bidirectional screw 304 and an adjustment motor 305. The lifting component includes a lifting frame 306, a pushing bracket 307, a driving member 308 and a pushing cylinder 309. The storage platform 301 is slidably arranged on each of the connecting brackets 102. At the same time, each of the storage platforms 301 is also provided with a downward pressure spring 302 in a guide groove for sliding with the connecting bracket 102. The downward pressure spring 302 can continuously apply a downward force to the storage platform 301. At the same time, each of the connecting brackets The lifting frames 306 are also provided on both sides of 102. The storage platform 301 can be lifted by driving the lifting frames 306. The driving members 308 are rotatably installed at the bottom of each lifting frame 306. The two driving members 308 are rotatably provided on the corresponding lifting frames 306 and the pushing brackets 307 on both sides. The pushing brackets 307 are driven by the pushing cylinders 309. When the pushing cylinders 309 drive the pushing brackets 307 to move, the pushing brackets 307 can drive the lifting frames 306 to move up and down on the connecting brackets 102 by driving the driving members 308.

[0056] By using the lifting frame 306 to lift the storage table 301, the bottom surface of the lifting frame 306 and the bottom surface of the connecting bracket 102 can be kept at the same level when the connecting bracket 102 rotates. Then, when the connecting bracket 102 rotates into the detection box 103 and needs to detect the placed workpiece, the lifting frame 306 can move down. Thereafter, the storage table 301 will cooperate with the step support seat provided at the bottom of the detection box 103 under the action of the downward pressure spring 302, and the storage table 301 is supported by the step support seat, so that the storage table 301 can maintain the stability of the support process during the subsequent downward pressure process. When the detection is completed, the storage table 301 is lifted by the lifting frame 306 to ensure that the storage table 301 and the connecting bracket 102 rotate normally.

[0057] Two clamping plates 303 are slidably mounted on the storage table 301, and the two clamping plates 303 are driven by the bidirectional screw 304 and the adjustment motor 305. The threads on both sides of the bidirectional screw 304 have opposite rotation directions, so as to drive the two clamping plates 303 to clamp the workpiece to be inspected placed on the storage table 301. It should be noted that the workpiece is clamped by the clamping plates 303 during the material loading and transfer process and before the inspection begins. When the inspection is carried out, the two clamping plates 303 need to be moved to both sides to avoid interference with the inspection of the workpiece. After the inspection, the workpiece does not need to be limited during the transfer process.

[0058] S2: The connecting bracket 102 is driven to rotate by the rotating operating table 101, and then the connecting bracket 102 transfers the workpiece mounted on the placement component to the detection box 103;

[0059] S3: After the workpiece to be inspected enters the inspection box 103, the internal inspection environment temperature is adjusted by the temperature adjustment device 105 in cooperation with the ventilation bracket 104;

[0060] S4: During the process of adjusting the internal detection environment temperature of the detection box 103, the temperature sensor 106 completes the range of the internal temperature data, thereby realizing the specific range adjustment of the internal detection environment temperature;

[0061] Specifically, a rotating shaft that can be rotated is provided on the top of the rotating operating table 101, and the three connecting brackets 102 are fixed on the rotating shaft on the top of the rotating operating table 101. The adjacent angles of the three connecting brackets 102 are 120 degrees. The user can drive the three connecting brackets 102 by rotating the rotating shaft on the top of the rotating operating table 101, thereby completing the station conversion of the three connecting brackets 102;

[0062] The detection box 103 is arranged on the operating table of the rotating operating table 101, and a corresponding step support seat is arranged at the bottom of the detection box 103. The detection box 103 is also provided with two ventilation brackets 104, the temperature control device 105 and the temperature sensor 106. An air pump and corresponding cooling and heating modules are arranged inside the temperature control device 105. The two ventilation brackets 104 are respectively connected to the air inlet and the air outlet of the temperature control device 105. The air pump inside the temperature control device 105 guides the airflow to enter from the corresponding ventilation bracket 104 and then export it through another ventilation bracket 104. The conducted airflow can be adjusted to the corresponding temperature through the cooling and heating modules inside the temperature control device 105, thereby realizing the adjustment of the detection temperature environment inside the detection box 103.

[0063] S5: After the temperature of the testing environment in the testing box 103 is adjusted, the hardness of the workpiece to be tested is tested by using the corresponding testing components in the test assembly.

[0064] Specifically, the test assembly also includes a downward pressure cylinder 401, a pressing frame 402, a pressing block 403, a pressure sensor 404, a displacement detection component, a blow-off component and an automatic control component. The displacement detection component includes an insertion box 501, an infrared rangefinder 502 and a sensing bracket 503. The pressing frame 402 is fixed to the bottom of the output end of the downward pressure cylinder 401, and the pressing block 403 is slidably arranged on the pressing frame 402. The pressure sensor 404 is arranged in the area where the pressing frame 402 and the pressing block 403 cooperate. The pressure sensor 404 can detect the pressure applied by the pressing frame 402 on the pressing block 403. The insertion box 501 is arranged on the detection box 103, and the infrared rangefinder 502 is fixedly installed on the top of the insertion box 501. At the same time, the sensing bracket 503 is also slidably installed inside the insertion box 501, and the sensing bracket 503 is fixedly arranged on one side of the pressing frame 402.

[0065] During actual detection, the downward pressure cylinder 401 drives the pressing frame 402 to move, and the pressing block 403 contacts the surface of the workpiece to be detected under the drive of the pressing frame 402. At the same time, the sensing bracket 503 also moves under the drive of the pressing frame 402, and the infrared rangefinder 502 can monitor the moving distance of the sensing bracket 503 in real time when the sensing bracket 503 moves. In this way, the hardness of the corresponding workpiece can be detected by the pressure detected by the pressure sensor 404 and the distance detected by the infrared rangefinder 502. The operator can analyze and judge the data detected in the entire detection process by establishing the pressure value as the horizontal coordinate and the detected moving distance as the vertical coordinate, and then obtain the hardness of the specified workpiece.

[0066] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A hardness testing device for plastic granule production, comprising a rotating operating table and a connecting bracket, wherein three connecting brackets are arranged on the top rotating shaft of the rotating operating table, characterized in that: Also includes testing components; The test assembly includes a detection box, a ventilation bracket, a temperature control device, a temperature sensor, a sealing component and a placement component; The detection box is fixedly installed on the rotating operating table, the two ventilation brackets are fixedly installed on the top of the detection box, the temperature control device is connected to the two ventilation brackets and is installed on one side of the detection box, the temperature sensor is electrically connected to the temperature control device, and the temperature sensor is installed on the detection box. The sealing component is connected to the detection box and is used to separate the detection environment in the detection box from the external environment. The placement component is provided on each of the connecting brackets, and the placement component is used to complete the placement of the designated detection workpiece.

2. The hardness testing device for plastic granule production according to claim 1, characterized in that: The sealing component includes a blocking bracket, a driving screw and a driving motor. The blocking bracket is slidably mounted on the detection box; the driving screw is threadedly connected to the blocking bracket and rotatably mounted on the detection box; the output shaft of the driving motor is connected to the driving screw, and the driving motor is fixedly mounted on the detection box.

3. The hardness testing device for plastic granule production according to claim 1, characterized in that: The placing component includes a placing table, a downward pressure spring, a clamping component and a lifting component. The placing table is slidably mounted on the connecting bracket; the two sides of the downward pressure spring are respectively connected to the placing table and the connecting bracket; the clamping component is arranged on the placing table for clamping the placed workpiece; the lifting component is connected to the connecting bracket for lifting the placing table arranged on the connecting bracket.

4. The hardness testing device for plastic granule production as claimed in claim 3, characterized in that: The clamping component includes a clamping plate, a bidirectional screw and an adjustment motor. The two clamping plates are slidably installed on both sides of the storage table; the two sides of the bidirectional screw are respectively threadedly connected to the two clamping plates, and the bidirectional screw is rotatably installed on one side of the storage table; the output shaft of the adjustment motor is connected to the bidirectional screw, and the adjustment motor is fixedly installed on one side of the storage table.

5. The hardness testing device for plastic granule production according to claim 3, characterized in that: The lifting component includes a lifting frame, a pushing bracket, a driving member and a pushing cylinder. The lifting frame is slidably installed on the side of the connecting bracket close to the storage table; the pushing bracket is slidably installed on the connecting bracket; one side of the driving member is rotatably connected to the lifting frame, and the other side of the driving member is rotatably connected to the pushing bracket; the output end of the pushing cylinder is connected to the pushing bracket, and the pushing cylinder is fixedly installed on the connecting bracket.

6. The hardness testing device for plastic granule production according to claim 3, characterized in that: The test assembly also includes a downward pressure cylinder, a pressing frame, a pressing block, a pressure sensor, a displacement detection component, a blow-off component and an automatic control component. The downward pressure cylinder is fixedly installed on the detection box; the pressing frame is fixedly installed on the output end of the downward pressure cylinder; the pressing block is slidably arranged on the pressing frame; the pressure sensor is installed on the side of the pressing frame close to the pressing block; the displacement detection component is connected to the pressing frame for detecting the actual downward pressure distance; the automatic control component is connected to the storage table for controlling the temperature control equipment to adjust the environment according to the actual detection situation of the workpiece to be tested; the blow-off component is connected to the rotating operating table for unloading and collecting the workpiece after detection.

7. The hardness testing device for plastic granule production according to claim 6, characterized in that: The displacement detection component includes an insertion box, an infrared rangefinder and a sensing bracket. The insertion box is fixedly mounted on the detection box; the infrared rangefinder is mounted on the insertion box; the sensing bracket is slidably connected to the insertion box and fixedly mounted on one side of the pressing frame.

8. The hardness testing device for plastic granule production according to claim 6, characterized in that: The blow-off component includes a collection frame, a resisting bracket, a blow-out rack and a blow-out fan, wherein the collection frame is placed on the rotating operating table; the resisting bracket is fixedly mounted on the rotating operating table; the blow-out rack is fixedly mounted on the resisting bracket; the blow-out fan is connected to the blow-out rack and mounted on the resisting bracket.

9. A method for testing hardness of plastic particles for production, using the hardness testing device for plastic particles for production as claimed in claim 1, characterized in that: The following steps are included: The workpiece to be inspected is clamped and installed by placing components; The connecting bracket is driven to rotate by the rotating operating table, and then the connecting bracket transfers the workpiece mounted on the placement component into the detection box; After the workpiece to be tested enters the testing box, the internal testing environment temperature is adjusted through the temperature control equipment and the ventilation bracket; During the temperature adjustment process of the internal detection environment of the detection box, the range of the internal temperature data is completed by the temperature sensor, so that the specific range adjustment of the internal detection environment temperature is achieved.

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