Quality testing equipment for PVC plastic particles

Abstract

The present invention relates to the technical field of PVC plastics, and in particular to quality inspection equipment for PVC plastic particles, comprising a workbench, a rotating disk, a feeding tank, a carrying disk, a molding part and a light source part, wherein the feeding tank is used for placing and storing particle bodies, and the feeding tank is used for unloading the particle bodies into the carrying disk; the carrying disk is provided with at least one group, and the carrying disk can be lifted and lowered on the rotating disk, and the rotating disk drives the carrying disk to rotate relative to the workbench; the molding part comprises a hot pressing plate, and the hot pressing plate is used for hot pressing the particle bodies in the carrying disk into a plastic film; a photosensitive unit is provided on the inner side of the carrying disk, and the light source part is used for irradiating the plastic film and cooperating with the photosensitive unit to perform light transmittance detection; the lower side of the feeding tank is provided with an inverted cone, and a feeding port is provided on the upper side of the feeding tank, and a unloading barrel is fixedly connected to the lower end of the inverted cone. The present invention realizes the automatic detection function conveniently and efficiently.

Description

Technical Field

[0001] The invention relates to the technical field of PVC plastics, in particular to quality detection equipment for PVC plastic particles. Background Art

[0002] Plastic particles are the common name for plastic particles. They are raw materials for storage, transportation and processing of plastics in the form of semi-finished products. The process of producing plastic particles generally includes sorting, crushing, cleaning, dehydration, extrusion, cooling, drawing, pelletizing and packaging. After the plastic particles are processed, since each link cannot reach the ideal state during the processing, impurities are inevitably present in the produced plastic particles. A certain amount of impurities will not affect the performance of the plastic particles, but excessive impurities mixed in the plastic particles will affect the performance of the plastic particles.

[0003] In the existing Chinese utility model patent with patent announcement number CN206563683U, a plastic particle quality detection machine is disclosed, including a chassis, a group of columns are arranged on the left side of the chassis, and a first support plate, a second support plate and a third support plate are connected to the columns from bottom to top in sequence, wherein the first support plate can slide up and down along the columns, a lifting mechanism is connected to the bottom of the first support plate, a heating platform is arranged on the upper surface of the first support plate, a pressing plate is installed on the bottom surface of the second support plate, a detection support plate is installed on the top surface of the second support plate, a telescopic cylinder is fixed on the third support plate, the piston rod of the telescopic cylinder is arranged downward and connected to a cover plate, a light-emitting unit and a photosensitive unit are respectively embedded in the detection support plate and the cover plate, and a control box is also arranged on the right side of the chassis.

[0004] In the above technical solution, plastic particles are placed on a heating table, the lifting mechanism is controlled to drive the first support plate to rise, the plastic particles are heated and pressed into a plastic film, and then the lifting mechanism is controlled to descend, the plastic film is taken out and placed on a detection support plate, and the telescopic cylinder is controlled to drive the cover plate to sink. When the cover plate is placed on the detection support plate, the light-emitting unit is turned on and the light transmittance is detected through the photosensitive unit. However, both the loading of plastic particles and the removal of plastic film require manual operation, which has a low degree of automation, is time-consuming and labor-intensive, and reduces work efficiency.

[0005] Therefore, it is necessary to provide quality inspection equipment for PVC plastic particles, which can achieve the effect of automatic inspection. Summary of the invention

[0006] The object of the present invention is to provide a quality inspection device for PVC plastic particles to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a quality inspection device for PVC plastic particles, comprising a workbench, a rotating disk, a feeding tank, a carrying disk, a molding part and a light source part,

[0008] The loading tank is used to place and store the particle bodies, and the loading tank is used to unload the particle bodies into the carrier plate;

[0009] At least one group of the carrier plates is provided, and the carrier plates are arranged on a rotating plate in a liftable manner, and the rotating plate drives the carrier plates to rotate relative to the workbench;

[0010] The forming part includes a hot pressing plate, and the hot pressing plate is used to hot press the particle bodies in the carrier plate into a plastic film;

[0011] A photosensitive unit is disposed inside the carrier plate, and the light source is used to illuminate the plastic film and cooperate with the photosensitive unit to perform light transmittance detection;

[0012] The lower side of the feeding tank is set as an inverted cone, and the upper side of the feeding tank is provided with a feeding port. The lower end of the inverted cone is fixedly connected with a lower barrel, and the inner diameter of the lower barrel is adapted to the outer diameter of the carrying plate. A pair of fixed fan-shaped plates and a pair of movable fan-shaped plates are fixedly connected between the inverted cone and the lower barrel. The pair of fixed fan-shaped plates are relatively fixed to the two ends of the upper side of the lower barrel. The pair of fixed fan-shaped plates and the pair of movable fan-shaped plates block the inverted cone to limit the discharge of the particle body, and the pair of movable fan-shaped plates move relatively to release the restriction on the particle body.

[0013] The upper inner end of the feeding tank is rotatably connected with a rotating shaft, the lower end of the rotating shaft is rotatably connected with a pair of fixed fan-shaped plates, and a revolving plate is arranged on the inner side of the inverted cone, and the revolving plate is fixed to both ends of the rotating shaft.

[0014] In one embodiment, the outer end of the movable fan-shaped plate is fixedly connected to an arc plate, both ends of the arc plate are penetrated and slidably fitted with guide rods, the inner end of the guide rod is fixedly connected to the discharge barrel, the outer end of the guide rod is fixedly connected to an outer ring part, the outer ring part is fixedly connected to the inverted cone, and the arc plate is driven to move by a linear drive assembly.

[0015] In one embodiment, two ends of the arc-shaped plate are fixedly connected with extension plates, and a return spring is provided between the arc-shaped plate and the outer ring member;

[0016] The linear drive assembly is provided with two groups and is symmetrically arranged at both ends of the discharge barrel. The linear drive assembly includes a rotating block 1, one side of the rotating block 1 is fixedly connected to a rotating rod 1, the rotating rod 1 is rotatably connected to the outer ring, one end of the rotating rod 1 is fixedly connected to a pulley 1, the lower end of the pulley 1 is connected to a pulley 2, the center of the pulley 2 passes through and is fixedly connected to a rotating rod 2, one end of the pulley 2 is fixedly connected to a rotating block 2, one end of the rotating block 1 and the rotating block 2 are both fixedly connected to a toggle block, the two toggle blocks are arranged opposite to each other, and the toggle block is used to push the extension plate to move.

[0017] In one embodiment, the lower end of the supporting plate is fixedly connected with a threaded sleeve, the lower side of the threaded sleeve is threadedly connected with a threaded rod, the lower end of the threaded rod passes through the rotating plate and is rotatably connected thereto, the lower end of the threaded rod is provided with a motor component, and the lower end of the supporting plate is provided with a plurality of telescopic rods.

[0018] In one embodiment, a rotatable torsion block is fixedly connected to the center of the upper end of the carrier plate, a torsion slot is provided at the lower end of the fixed sector plate, the torsion slot is fixedly connected to the rotating shaft, and the torsion block is adapted to the torsion slot.

[0019] In one embodiment, a friction disc is provided at the lower end of the telescopic rod, a groove is provided on the upper side of the rotating disc for the friction disc to sink, there is friction between the friction disc and the rotating disc, and the threaded rod passes through the friction disc and is in clearance fit with the friction disc;

[0020] Rollers are arranged inside a pair of fixed sector plates, and the rollers correspond to the outer rings of the carrying plates.

[0021] In one embodiment, the roller is fixedly connected to a rotating rod.

[0022] In one embodiment, an inner ring gear is fixedly connected to the inner side of the workbench, an annular groove for accommodating the inner ring gear is provided on the outer ring of the rotating disk, a gear is arranged on the inner side of the rotating disk, the gear is meshingly connected with the inner ring gear, and the gear is driven to rotate by a motor assembly.

[0023] In one embodiment, a through hole is provided on the middle side of the gear, a circle of one-way slots is provided on the inner wall of the through hole, a plurality of ratchets are engaged in the one-way slots, a fixing ring is fixedly connected to the lower end of the friction disk, the threaded rod passes through the fixing ring and is gap-matched with the fixing ring, a plurality of spring telescopic rods are provided on the outer side of the fixing ring, the spring telescopic rods are connected to the ratchets, and the ratchets limit the one-way relative rotation between the fixing ring and the gear.

[0024] In one embodiment, the light source portion includes a light-shielding cover, a light-emitting unit is disposed inside the light-shielding cover, and the light-shielding cover is used to cover the carrier plate and perform a light transmittance test.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention stores a plurality of particle bodies through a loading tank, an inverted cone is provided at the lower side of the loading tank, the inverted cone enables a plurality of particle bodies to be centrally discharged into a discharge barrel, and a pair of fixed fan-shaped plates and a pair of movable fan-shaped plates are provided at the upper end of the discharge barrel, the pair of movable fan-shaped plates can move relatively to open or close the opening of the discharge barrel, thereby realizing orderly discharge of the particle bodies;

[0026] A carrying plate is provided, and the carrying plate can be moved into the discharge barrel to facilitate the receiving of the discharged particle body. After receiving, it is rotated to the lower side of the forming part by the rotating plate, and then the carrying plate drives several particle bodies to rise. The forming part performs hot pressing on the particle body in the carrying plate by the hot pressing plate to form a plastic film, and then the plastic film is rotated to the light source part by the rotating plate. The light source part is used to irradiate the plastic film, and the light transmittance is detected by the photosensitive unit arranged in the carrying plate, so that the quality of the particle body can be automatically detected. The plastic film after the detection can be removed by setting a robot, and then the rotating plate drives the carrying plate back to its original position to carry out the next round of detection operation, so as to realize continuous detection of the particle body, greatly improve the work efficiency, and no manual intervention is required in the whole detection process, and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0028] In the attached picture:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is a front cross-sectional schematic diagram of the present invention;

[0031] Figure 3 It is a side cross-sectional schematic diagram of a feeding tank of the present invention;

[0032] Figure 4 It is a partial three-dimensional schematic diagram of the present invention;

[0033] Figure 5 yes Figure 3 A local enlarged schematic diagram of region A;

[0034] Figure 6 It is a three-dimensional schematic diagram of the toggle block of the present invention;

[0035] Figure 7 yes Figure 2 A local enlarged schematic diagram of area B;

[0036] Figure 8 is a three-dimensional schematic diagram of the torsion block of the present invention;

[0037] Fig. 9 It is a three-dimensional schematic diagram of the interior of the rotating disk of the present invention;

[0038] Fig.10 is a three-dimensional schematic diagram of a ratchet of the present invention;

[0039] Fig.11 is a schematic cross-sectional view of a light shield of the present invention;

[0040] In the figure: 1, feeding tank; 101, inverted cone; 102, unloading barrel; 103, movable sector plate; 104, rotating shaft; 105, rotating plate; 106, arc plate; 107, guide rod; 108, outer ring; 109, rotating block 1; 110, rotating rod 1; 111, pulley 1; 112, pulley 2; 113, rotating rod 2; 114, rotating block 2; 115, toggle block; 116, extension plate;

[0041] 2. Carrying plate; 201. Threaded sleeve; 202. Threaded rod; 203. Telescopic rod; 204. Friction plate; 205. Torque block; 206. Torque slot; 207. Roller;

[0042] 3. Forming department; 301, hot pressing plate;

[0043] 4. Rotating disk; 401. Motor component; 402. Gear; 403. One-way slot; 404. Ratchet; 405. Fixed ring; 406. Spring telescopic rod 1;

[0044] 5. Workbench; 501. Internal gear ring;

[0045] 6. Light source unit; 601. Light shield. DETAILED DESCRIPTION

[0046] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0047] See also Figure 1-11The present invention provides a technical solution: a quality inspection device for PVC plastic particles, comprising a workbench 5, a rotating disk 4, a loading tank 1, a carrying disk 2, a molding part 3 and a light source part 6,

[0048] The loading tank 1 is used to place and store the particle bodies, and the loading tank 1 is used to unload the particle bodies into the carrier plate 2;

[0049] At least one group of carrier plates 2 is provided, and the carrier plates 2 are arranged on the rotating plate 4 in a liftable manner, and the rotating plate 4 drives the carrier plates 2 to rotate relative to the workbench 5;

[0050] The forming part 3 includes a hot pressing plate 301, which is used to hot press the particle bodies in the carrier plate 2 into a plastic film;

[0051] A photosensitive unit is disposed inside the carrier plate 2, and the light source unit 6 is used to illuminate the plastic film and cooperate with the photosensitive unit to perform light transmittance detection;

[0052] The lower side of the loading tank 1 is set as an inverted cone 101, and the upper side of the loading tank 1 is provided with a feeding port. The lower end of the inverted cone 101 is fixedly connected with a lower barrel 102, and the inner diameter of the lower barrel 102 is adapted to the outer diameter of the carrier plate 2. A pair of fixed fan-shaped plates and a pair of movable fan-shaped plates 103 are fixedly connected between the inverted cone 101 and the lower barrel 102. The pair of fixed fan-shaped plates are relatively fixed at the two ends of the upper side of the lower barrel 102. The pair of fixed fan-shaped plates and the pair of movable fan-shaped plates 103 block the inverted cone 101 to limit the discharge of the particle body, and the pair of movable fan-shaped plates 103 move relatively to release the restriction on the particle body.

[0053] The upper inner end of the loading tank 1 is rotatably connected to a rotating shaft 104 , and the lower end of the rotating shaft 104 is rotatably connected to a pair of fixed fan-shaped plates. A revolving plate 105 is provided on the inner side of the inverted cone 101 , and the revolving plate 105 is fixed to both ends of the rotating shaft 104 .

[0054] A plurality of particle bodies are stored through the loading tank 1. The staff can place a plurality of particle bodies into the loading tank 1 through the feed port in advance. An inverted cone 101 is provided at the lower side of the loading tank 1. The inverted cone 101 allows a plurality of particle bodies to be discharged centrally and enter the discharge barrel 102. A pair of fixed fan-shaped plates and a pair of movable fan-shaped plates 103 are provided at the upper end of the discharge barrel 102. The pair of movable fan-shaped plates 103 can move relatively to open or close the opening of the discharge barrel 102, thereby realizing the orderly discharge of the particle bodies.

[0055] A carrying disc 2 is provided, and its size is adapted to the discharge barrel 102. The carrying disc 2 can be moved into the discharge barrel 102 to facilitate the receipt of the discharged particle body. After receipt, the carrying disc 2 is rotated to the lower side of the forming part 3 by the rotating disc 4, and then the carrying disc 2 drives a number of particle bodies to rise. The forming part 3 performs hot pressing on the particle body in the carrying disc 2 through the hot pressing plate 301 to form a plastic film, and then the plastic film is rotated to the light source part 6 through the rotating disc 4. The light source part 6 is used to irradiate the plastic film, and the light transmittance is detected by the photosensitive unit provided in the carrying disc 2, so that the quality of the particle body can be automatically detected. The plastic film after the detection can be removed by providing a manipulator, and then the rotating disc 4 drives the carrying disc 2 back to the original position to carry out the next round of detection operations, so as to realize continuous detection of the particle body, greatly improve the work efficiency, and no manual intervention is required in the whole detection process, and the degree of automation is high;

[0056] Preferably, in this embodiment, three groups of carrier plates 2 are provided, corresponding to the loading tank 1, the molding part 3 and the light source part 6 respectively, so that the three groups of plastic particles can be detected in sequence and continuously, further improving the working efficiency;

[0057] Preferably, a rotating shaft 104 and a rotating plate 105 are provided on the inner side of the loading tank 1, and the rotating plate 105 is driven to rotate by the rotating shaft 104, so as to stir the particle body in the inverted cone 101, thereby preventing too much particle body from clogging the inverted cone 101 and facilitating the stable discharge of the particle body into the supporting plate 2, which is highly practical.

[0058] The outer end of the movable fan-shaped plate 103 is fixedly connected to the arc plate 106, and guide rods 107 are passed through and slidably matched at both ends of the arc plate 106. The inner end of the guide rod 107 is fixedly connected to the discharge barrel 102, and the outer end of the guide rod 107 is fixedly connected to the outer ring 108, and the outer ring 108 is fixedly connected to the inverted cone 101. The arc plate 106 is driven to move by a linear drive assembly.

[0059] Specifically, the arc plate 106 is driven by the linear drive assembly to drive the movable sector plate 103 to move relatively, and the guide rod 107 provides guidance, so that the unloading barrel 102 can be opened or closed.

[0060] The two ends of the arc plate 106 are fixedly connected with extension plates 116, and a return spring is arranged between the arc plate 106 and the outer ring member 108;

[0061] There are two groups of linear drive components and they are symmetrically arranged at the two ends of the discharge barrel 102. The linear drive components include a rotating block 109, one side of the rotating block 109 is fixedly connected to a rotating rod 110, the rotating rod 110 is rotatably connected to the outer ring 108, one end of the rotating rod 110 is fixedly connected to a pulley 111, the lower end of the pulley 111 is connected to a pulley 2 112, the center of the pulley 112 passes through and is fixedly connected to a rotating rod 2 113, one end of the pulley 112 is fixedly connected to a rotating block 2 114, one end of the rotating block 109 and the rotating block 2 114 are fixedly connected to a toggle block 115, the two toggle blocks 115 are arranged opposite to each other, and the toggle block 115 is used to push the extension plate 116 to move.

[0062] Preferably, when a pair of movable sector plates 103 need to be driven to move relative to each other, a toggle block 115 is provided, and the pair of toggle blocks 115 are relatively arranged at the middle sides of the extension plates 116 on both sides (such as Figure 6 As shown), by providing a pulley 111 and a pulley 2 112, the rotating block 109 and the rotating block 2 114 are driven to rotate synchronously, thereby driving the two toggle blocks 115 to rotate relative to each other, pushing the extension plates 116 on both sides, so that the arc plate 106 moves, which can drive a pair of movable fan-shaped plates 103 to move relative to each other, and control the orderly feeding of the particle body;

[0063] A return spring is provided between the arc plate 106 and the outer ring 108 to facilitate automatic return of the pair of movable sector plates 103 .

[0064] The lower end of the carrying plate 2 is fixedly connected with a threaded sleeve 201, and the lower side of the threaded sleeve 201 is threadedly connected with a threaded rod 202. The lower end of the threaded rod 202 passes through the rotating plate 4 and is rotatably connected thereto. The lower end of the threaded rod 202 is provided with a motor part 401, and the lower end of the carrying plate 2 is provided with a plurality of telescopic rods 203.

[0065] Specifically, when the carrier plate 2 needs to be driven to move up and down, the motor 401 drives the threaded rod 202 to rotate, and through the threaded connection with the threaded sleeve 201, under the guidance of the telescopic rod 203, the threaded sleeve 201 drives the carrier plate 2 to move up and down.

[0066] A rotatable torsion block 205 is fixedly connected to the center of the upper end of the carrier plate 2 , and a torsion slot 206 is provided at the lower end of the fixed sector plate. The torsion slot 206 is fixedly connected to the rotating shaft 104 , and the torsion block 205 is adapted to the torsion slot 206 .

[0067] When it is necessary to drive the rotating shaft 104 to rotate, a torsion block 205 and a torsion slot 206 are provided. Specifically, when the carrying plate 2 is required to receive the particle body, the carrying plate 2 is moved upward so as to fit onto the lower ends of the fixed sector plate and the movable sector plate 103. At this time, the torsion block 205 is inserted into the torsion slot 206 and rotates, thereby transmitting the torque, driving the torsion slot 206 to rotate, thereby driving the rotating shaft 104 to rotate, and the rotating plate 105 can push the particle body to achieve stable unloading. After unloading is completed, the carrying plate 2 is lowered and reset, so that the torsion block 205 and the torsion slot 206 are separated from each other. In other words, the engagement or separation of the torsion block 205 and the torsion slot 206 can be achieved by lifting and lowering the carrying plate 2. The two have good synchronization and are highly practical.

[0068] A friction disc 204 is disposed at the lower end of the telescopic rod 203, and a groove is provided on the upper side of the rotating disc 4 for the friction disc 204 to sink. There is friction between the friction disc 204 and the rotating disc 4, and the threaded rod 202 penetrates the friction disc 204 and is in clearance with the friction disc 204.

[0069] A pair of fixed sector plates are provided with rollers 207 inside, and the rollers 207 correspond to the outer ring of the carrying plate 2 .

[0070] Specifically, when the threaded rod 202 rotates, the threaded sleeve 201 and the carrier plate 2 are driven to move upward. Due to the friction between the friction plate 204 and the rotating plate 4, the friction plate 204 will not be easily driven to rotate, that is, the telescopic rod 203 guides the carrier plate 2, so that the carrier plate 2 rises linearly until the torsion block 205 is stuck in the torsion groove 206. Then, since the carrier plate 2 cannot continue to move upward at this time, if the threaded rod 202 continues to rotate, when the driving force is greater than the friction between the friction plate 204 and the rotating plate 4, the threaded rod 202 is rotated to directly drive the threaded sleeve 201, the carrier plate 2, the telescopic rod 203 and the friction plate 204 to rotate as a whole, so that the torsion block 205 drives the torsion groove 206 and the rotating shaft 104 to rotate, thereby realizing the stable feeding of the particle body. Moreover, since the carrier plate 2 rotates itself, the particle body is evenly fed into the carrier plate 2, further maintaining the uniform thickness of the formed plastic film and improving the detection accuracy.

[0071] When the carrier plate 2 needs to be driven to descend and reset, the threaded rod 202 rotates in the opposite direction. Since there is friction between the friction plate 204 and the rotating plate 4, the telescopic rod 203 guides the threaded sleeve 201 to drive the carrier plate 2 to descend and reset.

[0072] Preferably, in order to avoid the generation of large friction when the supporting plate 2 contacts with the movable fan-shaped plate 103 and the fixed fan-shaped plate, which makes it difficult for the supporting plate 2 to rotate itself, rollers 207 are provided, and the supporting plate 2 moves up and fits with a pair of rollers 207, so that when the supporting plate 2 rotates, the rollers 207 follow the rotation to avoid the generation of friction.

[0073] The roller 207 is fixedly connected to the rotating rod 110 .

[0074] Preferably, the roller 207 is fixedly connected to the rotating rod 110. When the supporting plate 2 and the roller 207 rotate in close contact, the roller 207 is driven to rotate, and the roller 207 drives the rotating rod 110 to rotate, so that the rotating block 109 and the rotating block 2 114 rotate synchronously, so that the toggle block 115 pushes the arc plate 106, so that a pair of movable fan-shaped plates 103 can be separated from each other, so that the particle body can be unloaded. At the same time, the supporting plate 2 rotates, and the torsion block 205 drives the torsion slot part 206 to rotate, so that the rotating shaft 104 drives the rotating plate 105 to rotate for pushing. In other words, only by the rotation of the supporting plate 2, the rotating plate 105 can be driven to rotate, and the movable fan plate 103 can be driven to move. The two have good synchronization, and pushing and unloading can be carried out simultaneously, saving costs.

[0075] An inner ring gear 501 is fixedly connected to the inner side of the workbench 5, and an annular groove for accommodating the inner ring gear 501 is provided on the outer ring of the rotating disk 4. A gear 402 is arranged on the inner side of the rotating disk 4, and the gear 402 is meshed and connected with the inner ring gear 501. The gear 402 is driven to rotate by the motor assembly.

[0076] Specifically, the gear 402 is driven by the motor assembly, and the gear 402 is meshed with the inner gear ring 501, and the inner gear ring 501 is fixed, so that when the gear 402 rotates, it rolls along the inner gear ring 501, thereby driving the rotating disk 4 to rotate as a whole.

[0077] A through hole is provided on the middle side of the gear 402, and a circle of one-way slots 403 are provided on the inner wall of the through hole. A plurality of ratchets 404 are engaged in the one-way slots 403. A fixing ring 405 is fixedly connected to the lower end of the friction disk 204. The threaded rod 202 passes through the fixing ring 405 and is clearance-matched with the fixing ring 405. A plurality of spring telescopic rods 406 are provided on the outer side of the fixing ring 405. The spring telescopic rods 406 are connected to the ratchets 404. The ratchets 404 limit the one-way relative rotation between the fixing ring 405 and the gear 402.

[0078] Specifically, ratchet teeth 404 and one-way slots 403 are provided, so that the fixing ring 405 and the gear 402 can only rotate relative to each other in one direction. After the carrier plate 2 receives the particle body, the threaded rod 202 rotates in the opposite direction to drive the carrier plate 2 to descend. When the lower end of the threaded sleeve 201 contacts the friction disc 204, the threaded sleeve 201 cannot continue to descend. If the threaded rod 202 is continued to rotate at this time, when the driving force is greater than the friction force between the friction disc 204 and the rotating disc 4, the threaded sleeve 201 will drive the friction disc 204 to rotate in the opposite direction as a whole, and the friction The disk 204 drives the fixed ring 405 to rotate, and the fixed ring 405 drives the ratchet 404 to rotate against the one-way slot 403, so that the fixed ring 405 drives the gear 402 to rotate synchronously, and the gear 402 can be meshed and rolled along the inner gear ring 501, driving the rotating disk 4 to rotate, and the carrying disk 2 can be moved to the next process. In other words, the rotation of the threaded rod 202 can realize the lifting and lowering drive of the carrying disk 2, and also drive the rotating shaft 104 and the movable sector plate 103, and also realize the rotation drive of the rotating disk 4, which greatly saves costs and has strong practicality.

[0079] When the friction disk 204 rotates forward, it drives the fixed ring 405 to rotate, causing the ratchet 404 to rotate along the one-way slot 403. At this time, the spring telescopic rod 406 is telescoped and adapted, and the ratchet 404 is continuously displaced in the one-way slot 403, and cannot drive the gear 402 to rotate. In other words, when the threaded rod 202 rotates forward, it will not affect the stability of the gear 402, that is, the rotating disk 4 remains stable.

[0080] The light source part 6 includes a light shield 601 , and a light emitting unit is disposed inside the light shield 601 . The light shield 601 is used to cover the carrier plate 2 and perform a light transmittance test.

[0081] In order to further improve the accuracy of light transmittance detection, a light-shielding cover 601 is provided. Specifically, when detection is required, the supporting plate 2 drives the plastic film to rise and engage with the light-shielding cover 601, thereby preventing external light from entering the interior, and detection can be carried out, which greatly reduces the influence of external light on the detection results and has strong practicality.

[0082] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, internal communication between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in this application can be understood according to specific circumstances.

[0083] The quality inspection equipment for PVC plastic particles provided in the embodiments of the present application is introduced in detail above. The principles and implementation methods of the present application are explained in this article using specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A quality inspection device for PVC plastic particles, comprising a workbench (5), a rotating disk (4), a loading tank (1), a carrying disk (2), a molding part (3) and a light source part (6), characterized in that: The loading tank (1) is used for placing and storing the particle bodies, and the loading tank (1) is used for unloading the particle bodies into the carrier plate (2); At least one group of the carrying plates (2) is provided, and the carrying plates (2) are arranged on a rotating plate (4) in a manner such that they can be raised or lowered, and the rotating plate (4) drives the carrying plates (2) to rotate relative to the workbench (5); The forming part (3) comprises a hot pressing plate (301), and the hot pressing plate (301) is used to hot press the particle bodies in the carrier disk (2) into a plastic film; A photosensitive unit is provided on the inner side of the carrier plate (2), and the light source part (6) is used to illuminate the plastic film and cooperate with the photosensitive unit to perform light transmittance detection; The lower side of the loading tank (1) is arranged as an inverted cone (101), the upper side of the loading tank (1) is arranged with a feeding port, the lower end of the inverted cone (101) is fixedly connected with a lowering barrel (102), the inner diameter of the lowering barrel (102) is adapted to the outer diameter of the supporting plate (2), a pair of fixed fan-shaped plates and a pair of movable fan-shaped plates (103) are fixedly connected between the inverted cone (101) and the lowering barrel (102), the pair of fixed fan-shaped plates are relatively fixed at the two ends of the upper side of the lowering barrel (102), the pair of fixed fan-shaped plates and the pair of movable fan-shaped plates (103) block the inverted cone (101) to limit the discharge of the particle body, and the pair of movable fan-shaped plates (103) move relatively to release the restriction on the particle body; The upper inner end of the loading tank (1) is rotatably connected to a rotating shaft (104), the lower end of the rotating shaft (104) is rotatably connected to a pair of fixed fan-shaped plates, and a revolving plate (105) is provided on the inner side of the inverted cone (101), and the revolving plate (105) is fixed to both ends of the rotating shaft (104); The outer end of the movable sector plate (103) is fixedly connected to an arc plate (106), both ends of the arc plate (106) are penetrated and slidably matched with guide rods (107), the inner end of the guide rod (107) is fixedly connected to the discharge barrel (102), the outer end of the guide rod (107) is fixedly connected to an outer ring member (108), the outer ring member (108) is fixedly connected to the inverted cone (101), and the arc plate (106) is driven to move by a linear drive assembly; Extension plates (116) are fixedly connected to both ends of the arc-shaped plate (106), and a return spring is provided between the arc-shaped plate (106) and the outer ring member (108); The linear drive assembly is provided with two groups and is symmetrically arranged at the two ends of the discharge barrel (102), and the linear drive assembly includes a rotating block (109), one side of the rotating block (109) is fixedly connected to a rotating rod (110), the rotating rod (110) is rotatably connected to the outer ring (108), one end of the rotating rod (110) is fixedly connected to a pulley (111), the lower end of the pulley (111) is connected to a pulley (112), the center of the pulley (112) is penetrated by and fixedly connected to a rotating rod (113), one end of the pulley (112) is fixedly connected to a rotating block (114), one end of the rotating block (109) and the rotating block (114) are both fixedly connected to a toggle block (115), the two toggle blocks (115) are arranged opposite to each other, and the toggle block (115) is used to push the extension plate (116) to move; The lower end of the carrier plate (2) is fixedly connected to a threaded sleeve (201), the lower side of the threaded sleeve (201) is threadedly connected to a threaded rod (202), the lower end of the threaded rod (202) passes through the rotating plate (4) and is rotatably connected thereto, the lower end of the threaded rod (202) is provided with a motor component (401), and the lower end of the carrier plate (2) is provided with a plurality of telescopic rods (203); A rotatable torsion block (205) is fixedly connected to the center of the upper end of the carrier plate (2), a torsion slot (206) is provided at the lower end of the fixed sector plate, the torsion slot (206) is fixedly connected to the rotating shaft (104), and the torsion block (205) is adapted to the torsion slot (206); A friction disc (204) is provided at the lower end of the telescopic rod (203); a groove for the friction disc (204) to sink is provided on the upper side of the rotating disc (4); friction force exists between the friction disc (204) and the rotating disc (4); and the threaded rod (202) penetrates the friction disc (204) and is clearance-matched with the friction disc (204); A pair of fixed sector plates are provided with rollers (207) inside, and the rollers (207) correspond to the outer ring of the carrying plate (2); An inner ring gear (501) is fixedly connected to the inner side of the workbench (5); an outer ring of the rotating disk (4) is provided with an annular groove for accommodating the inner ring gear (501); a gear (402) is arranged on the inner side of the rotating disk (4); the gear (402) is meshingly connected to the inner ring gear (501); and the gear (402) is driven to rotate by a motor assembly; A through hole is provided on the middle side of the gear (402), and a circle of one-way slots (403) are provided on the inner wall of the through hole. A plurality of ratchets (404) are engaged in the one-way slots (403). A fixing ring (405) is fixedly connected to the lower end of the friction disk (204). The threaded rod (202) passes through the fixing ring (405) and is loosely matched with the fixing ring. A plurality of spring telescopic rods (406) are provided on the outer side of the fixing ring (405). The spring telescopic rods (406) are connected to the ratchets (404). The ratchets (404) limit the one-way relative rotation between the fixing ring (405) and the gear (402).

2. The quality inspection equipment for PVC plastic particles according to claim 1, characterized in that: The roller (207) is fixedly connected to the rotating rod 1 (110).

3. The quality inspection equipment for PVC plastic particles according to claim 1, characterized in that: The light source part (6) comprises a light shield (601), a light-emitting unit is arranged inside the light shield (601), and the light shield (601) is used to cover the carrier plate (2) and perform a light transmittance test.

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