A device and method for screening heterochromatic particles of finished silica gel products

Abstract

The present invention discloses a device for screening heterochromatic particles of finished silica gel products and a screening method thereof, and relates to the technical field of color sorting devices for finished silica gel products, in order to solve the problem that the existing device can only screen out spherical silica gels that meet the standard size specifications during use, but cannot identify and sort heterochromatic particles on the surface of spherical silica gel during the production process, and it is difficult to ensure the heterochromatic particles. A loading frame is arranged below the second discharge port; a first photosensitive integrated mechanism is installed on both sides of the loading frame; a guide bracket assembly is arranged at the rear end of the loading frame, and the guide bracket assembly includes a first connecting support plate, a second connecting support plate, a first electric screw slide and a polytetrafluoroethylene table, the first electric screw slide is arranged between the first connecting support plate and the second connecting support plate, and the slider of the first electric screw slide is transmission-connected to the loading frame.

Description

Technical Field

[0001] The invention relates to the technical field of color sorting devices for finished silica gel products, and in particular to a device for screening heterochromatic particles in finished silica gel products and a screening method thereof. Background Art

[0002] After the silicone product is formed, it needs to be screened and stored according to the customer's requirements for product particle size using a spherical screening device to obtain qualified finished silicone products.

[0003] For example, the application number CN211613063 is a spherical silica gel screening equipment, which solves the technical problems of low automation, low ball selection efficiency and high labor intensity of the existing spherical silica gel screening equipment. It is provided with a feeding device, a screening device and a ball selection device. The screening device is composed of two or more screening machines stacked and arranged in sequence from low to high. The screening machine is provided with a screen for screening spherical silica gel of different sizes. The ball selection device is composed of two or more ball selection machines. Each screening machine outlet corresponds to a ball selection machine. The ball selection machine is provided with a ball selection machine belt, and the ball selection machine belt is equipped with a sweeping scraper.

[0004] During use, the above device can only screen out spherical silica gel with standard size specifications, but it is unable to identify and sort heterochromatic particles on the surface of spherical silica gel during the production process, making it difficult to ensure heterochromatic particles; therefore, we propose a device for screening heterochromatic particles in finished silica gel products and a screening method thereof, in order to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a device for screening heterochromatic particles in finished silica gel products and a screening method thereof, so as to solve the problem that the existing device proposed in the above background technology can only screen out spherical silica gel with standard size specifications during use, but cannot identify and sort heterochromatic particles on the surface of spherical silica gel during the production process, making it difficult to ensure the heterochromatic particles.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for screening heterochromatic particles of finished silica gel, comprising a vibration screening mechanism, the vibration screening mechanism comprising a vibration housing and a base, the base being installed below the vibration housing, a first sieve plate being installed inside the vibration housing, a second sieve plate being arranged below the first sieve plate, a first discharge port being arranged at one end of the first sieve plate, an extended side material channel being arranged at one end of the first discharge port, a second discharge port being arranged at one end of the second sieve plate, a third discharge port being arranged below one end of the vibration housing, and a feed port being arranged above one end of the vibration housing;

[0007] Also includes:

[0008] A loading frame, which is arranged below the second feeding port;

[0009] A first photosensitive integrated mechanism, which is installed on both sides of the charging frame;

[0010] A guide bracket assembly, which is arranged at the rear end of the charging frame, and the guide bracket assembly includes a first connecting support plate, a second connecting support plate, a first electric screw slide and a polytetrafluoroethylene table plate, wherein the first electric screw slide is arranged between the first connecting support plate and the second connecting support plate, and the slider of the first electric screw slide is transmission-connected with the charging frame, the polytetrafluoroethylene table plate is arranged on the lower surface of the charging frame, and the two ends of the polytetrafluoroethylene table plate are respectively fixedly connected with the first connecting support plate and the second connecting support plate;

[0011] A color sorting mechanism is installed below the middle position of the polytetrafluoroethylene table. A second electric guide rail is embedded at the rear end of the color sorting mechanism, and a second photosensitive integrated mechanism is installed on the slider of the second electric guide rail.

[0012] Preferably, the vibration housing is equipped with a vibration exciter, a belt transmission mechanism is installed at one end of the vibration exciter, an asynchronous motor is installed at one end of the belt transmission mechanism, and the output shaft of the asynchronous motor is connected to the vibration exciter through the belt transmission mechanism, the lower end of the asynchronous motor is fixedly connected to the base through a motor support plate, first spring seats are provided on both sides of the base, and four first spring seats are provided, second spring seats are provided on both sides of the vibration housing, and four second spring seats are provided, a vibration spring is installed between adjacent first spring seats and second spring seats, a flexible rubber sheath is provided on the outside of the vibration spring, and two ends of the flexible rubber sheath are respectively bonded and connected to the first spring seat and the second spring seat.

[0013] Preferably, a plurality of spherical sieve holes are arranged inside the first sieve plate and the second sieve plate, and the aperture of the spherical sieve holes on the second sieve plate is smaller than the aperture of the spherical sieve holes on the first sieve plate.

[0014] Preferably, guide columns are provided above and below the first electric screw slide, and both ends of the guide columns are fixedly connected to the first connecting support plate and the second connecting support plate respectively, guide blocks are installed on both sides above and below the rear end of the loading frame, and the loading frame is slidably connected to the guide columns through the guide blocks, and embedded ball bearings are provided at the edge of the lower surface of the loading frame, and a plurality of embedded ball bearings are provided.

[0015] Preferably, a grid coding plate is provided inside the upper surface of the color sorting mechanism, and the grid coding plate is made of infrared transmitting material, and a plurality of photosensors are distributed in an array inside the first photosensitive integrated mechanism and the second photosensitive integrated mechanism.

[0016] Preferably, one end of the grid coding plate is rotatably connected to one side of the inner wall of the color sorting mechanism through a rotating shaft, and the other end of the grid coding plate is rotatably connected to the other side of the inner wall of the color sorting mechanism through a gear shaft. A stepper motor is installed on one side of the outer wall of the color sorting mechanism, and the output shaft of the stepper motor passes through and extends to the interior of the color sorting mechanism. The output shaft of the stepper motor is meshingly connected with the gear shaft through a driving gear.

[0017] Preferably, a push-pull groove is provided inside the color sorting mechanism, caster grooves are provided on both sides of the lower end of the push-pull groove, a loading box is provided inside the push-pull groove, casters are installed on both sides below the loading box, and four casters are provided, and a handle is installed on the outer wall of the loading box.

[0018] Preferably, a weighing sensor is installed on the bottom surface of the charging box, and a supporting plate is installed on the upper surface of the weighing sensor.

[0019] Preferably, a mechanical arm mounting seat is provided below the front end of the color sorting mechanism.

[0020] Preferably, the screening method of the silica gel finished product heterochromatic particles screening device comprises the following steps:

[0021] Step 1: Pour the formed silicone balls from the feed port of the vibration screening mechanism. Under the transmission action of the asynchronous motor and the vibrator, in conjunction with the multiple groups of vibration springs at the connection between the housing and the base of the vibration screening mechanism, the screen surface of the first and second screen plates inside generates reciprocating vibration. After the material enters, it is first located on the upper layer of the first screen plate. Under the action of vibration, the balls that meet the standard specifications fall along the several spherical screen holes on the first screen plate to the upper layer of the second screen plate. The balls that are larger than the specifications continue to move along the first screen plate and are discharged from the first discharge port. The balls that are smaller than the standard specifications on the upper layer of the second screen plate continue to fall to the bottom layer under the action of vibration and are discharged along the third discharge port. The balls that meet the standard specifications move along the second screen plate and fall into the loading frame from the second discharge port.

[0022] Step 2: When a certain amount of ball material is stored in the loading frame, the vibration screening mechanism stops running, and the first electric screw slide drives the loading frame and the internal material to move along the guide rail to the end of the guide rail. When passing through the color sorting mechanism, the ball material at the bottom of the loading frame will fall into the grid material plate on the upper layer of the color sorting mechanism one by one. At the same time, the first photosensitive integrated mechanism on one side of the loading frame uses an infrared laser to scan the upper spherical surface of the silica gel in the grid, and the second photosensitive integrated mechanism inside the color sorting mechanism uses an infrared laser to scan the lower spherical surface of the silica gel in the grid under the transmission action of the second electric guide rail. After scanning, the first photosensitive integrated mechanism and the second photosensitive integrated mechanism measure the photometric data of the laser passing through each grid and upload the data to the terminal;

[0023] Step 3: The terminal has built-in photometric data of the laser passing through each grid when no silicone balls are placed on the grid coding plate, and photometric data of the laser passing through each grid when silicone with different colors is placed on the grid coding plate. After receiving the real-time detection data sent by the first photosensitive integration mechanism and the second photosensitive integration mechanism, it can be determined whether there are different-colored particles on the surface of the spherical silicone in each grid by comparing with the built-in parameters, and the spherical silicone grid with different-colored particles is marked, and the signal is further sent to the robot arm on the robot arm mounting seat, and the robot arm takes out the defective products according to the coordinates;

[0024] Step 4: After the defective silicone is taken out, the stepper motor drives the grid material plate to slowly flip over under the action of gear transmission so that the material falls into the loading box and resets;

[0025] Step 5: The first electric screw slide drives the loading frame and the internal materials from the end of the guide rail back to the second discharge port. When the loading frame passes through the color sorting mechanism again, the residual ball materials inside continue to fall into the grid coding plate. At the same time, the first photosensitive integrated mechanism on the other side of the loading frame uses an infrared laser to scan the upper spherical surface of the silica gel in the grid. The second photosensitive integrated mechanism scans the lower spherical surface of the batch of materials under the transmission action of the second electric guide rail. After identifying the defective materials, they are sorted out by the robotic arm, and this cycle is repeated to achieve the spherical screening of the finished silica gel particles.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention arranges a guide bracket assembly at the discharge port of the vibration screening mechanism, and installs a color sorting mechanism on the path of the guide bracket assembly. The silica gel balls are first subjected to conventional screening processing by the vibration screening mechanism. After screening, the silica gel balls of composite size specifications are discharged from the second discharge port of the middle layer of the vibration screening mechanism and fall into the loading frame. When a certain amount of silica gel balls are stored in the loading frame, the vibration screening mechanism stops running, and the loading frame and the internal materials are driven by the first electric screw slide to move along the guide rail to the end of the guide rail. When passing through the color sorting mechanism, the balls at the bottom layer of the loading frame will fall one by one into the grid code plate on the upper layer of the color sorting mechanism. At the same time, the first photosensitive integrated mechanism on one side of the loading frame uses an infrared laser to scan the upper spherical surface of the silica gel in the grid, and the second photosensitive integrated mechanism inside the color sorting mechanism uses an infrared laser to scan the lower spherical surface of the silica gel in the grid under the transmission action of the second electric guide rail. The first photosensitive integrated mechanism and the second photosensitive integrated mechanism are used to scan the lower spherical surface of the silica gel in the grid. After scanning, the second photosensitive integrated mechanism measures the photometric data of the laser passing through each grid, and uploads the data to the terminal. The terminal has built-in photometric data of the laser passing through each grid when no silicone balls are placed on the grid coding plate, and photometric data of the laser passing through each grid when silicone balls of different colors are placed on the grid coding plate. After receiving the real-time detection data sent by the first photosensitive integrated mechanism and the second photosensitive integrated mechanism, it can be determined whether there are different-colored particles on the surface of the spherical silicone in each grid by comparing with the built-in parameters, and the spherical silicone grid with different-colored particles is marked, and the signal is further sent to the robot arm on the robot arm mounting seat, and the robot arm takes out the defective products according to the coordinates, so as to realize the automatic sorting of silicone balls with different-colored particles, which solves the problem that the existing device can only screen out spherical silicone balls with standard size specifications during use, but cannot identify and sort the different-colored particles on the surface of the spherical silicone during the production process, and it is difficult to ensure the different-colored particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the partial structure of the vibration screening mechanism of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the vibration screening mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the sieve plate structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the connection structure of the first spring seat and the second spring seat of the present invention;

[0033] Figure 6 It is a schematic diagram of the bottom structure of the charging frame of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the guide bracket assembly of the present invention;

[0035] Figure 8 It is a schematic diagram of the color sorting mechanism structure of the present invention;

[0036] Fig. 9 It is a schematic diagram of the internal structure of the color sorting mechanism of the present invention;

[0037] In the figure: 1. Vibration screening mechanism; 2. Guide bracket assembly; 3. Loading frame; 301. Guide block; 302. First photosensitive integrated mechanism; 303. Photosensitive sensor; 304. Embedded ball bearing; 4. Color sorting mechanism; 5. Vibration housing; 6. Feeding port; 7. Base; 8. First spring seat; 9. Second spring seat; 10. Flexible rubber sheath; 11. Vibrator; 12. Belt drive mechanism; 13. Asynchronous motor; 14. Motor support plate; 15. First discharge port; 16. Extended side material channel; 17. Second discharge port; 18. Third discharge port; 19. First connecting support plate; 20. First electric screw slide; 21. Second connecting support plate; 22. Guide column; 23. First sieve plate; 24. Second sieve plate; 25. Spherical sieve hole; 26. Polytetrafluoroethylene table; 27. Vibration spring; 28. Second electric guide rail; 29. ​​Stepper motor; 30. Robot arm mounting seat; 31. Push-pull groove; 32. Loading box; 33. Pull handle; 34. Caster groove; 35. Grid material plate; 36. Second photosensitive integrated mechanism; 37. Support plate; 38. Weighing sensor; 39. Caster; 40. Gear shaft; 41. Driving gear. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] See also Figure 1-9, an embodiment of the present invention provides: a device for screening heterochromatic particles of finished silica gel, comprising a vibration screening mechanism 1, the vibration screening mechanism 1 comprising a vibration housing 5 and a base 7, the base 7 being installed below the vibration housing 5, and a feed port 6 being arranged above one end of the vibration housing 5; a first sieve plate 23 is installed inside the vibration housing 5, and a first discharge port 15 is arranged at one end of the first sieve plate 23, and an extended side material channel 16 is arranged below the first discharge port 15. A second sieve plate 24 is arranged below the first sieve plate 23 inside the vibration housing 5, and a second discharge port 17 is arranged at one end of the second sieve plate 24. A third discharge port 18 is arranged below one end of the vibration housing 5. Preferably, the first sieve plate 23 and the second sieve plate 24 are detachably fixedly connected to the inside of the vibration housing 5 by screws. The extended side material channel 16 is fixedly connected to the vibration housing 5 by integral molding or welding with the vibration housing 5.

[0040] See also Figure 2 and Figure 5 The vibration housing 5 can be floatingly arranged on the base 7 through a plurality of spring vibration mechanisms. Specifically, the spring vibration mechanism includes a first spring seat 8, a second spring seat 9, and a vibration spring 27 arranged between the first spring seat 8 and the second spring seat 9. Among them, the first spring seat 8 is fixedly arranged on the base 7, the second spring seat 9 is fixedly arranged on the vibration housing 5, and the number of the spring vibration mechanisms is four, which are distributed at four places of the base 7.

[0041] The vibration housing 5 is equipped with an exciter 11 and an asynchronous motor 13 for actuating the exciter 11, so that the vibration housing 5 and the first sieve plate 23 and the second sieve plate 24 inside it generate reciprocating vibrations to facilitate screening of the ball material. Specifically, the driven wheel of the exciter 11 is connected to the driving wheel of the output shaft of the asynchronous motor 13 through a belt transmission mechanism 12. The lower end of the asynchronous motor 13 is fixedly connected to the base 7 through a motor support plate 14.

[0042] See also Figure 4 A plurality of spherical sieve holes 25 are provided inside the first sieve plate 23 and the second sieve plate 24, and the aperture of the spherical sieve holes 25 on the second sieve plate 24 is smaller than the aperture of the spherical sieve holes 25 on the first sieve plate 23. The spherical sieve holes 25 can be used to more accurately screen out silica gel balls that meet standard specifications.

[0043] See also Figure 1-9 The present invention further comprises: a loading frame 3, a first photosensitive integration mechanism 302 and a guide bracket assembly 2. The loading frame 3 is movably disposed on the base 7 through the guide bracket assembly 2 and is located below the second discharge port 17.

[0044] Specifically, the guide bracket assembly 2 includes a first connecting support plate 19, a second connecting support plate 21, a first electric screw slide 20 and a polytetrafluoroethylene table 26. The lower ends of the first connecting support plate 19 and the second connecting support plate 21 are fixedly connected to the ground by bolts or the like. The first electric screw slide 20 is arranged between the first connecting support plate 19 and the second connecting support plate 21, and the slider of the first electric screw slide 20 is fixedly connected to the loading frame 3. The first photosensitive integration mechanism 302 is fixedly arranged on both sides of the loading frame 3.

[0045] More specifically, the first electric screw slide 20 mainly includes a mounting seat, a screw, a driving motor, a slider, a guide column 22 and a guide block 301. The two ends of the screw are rotatably connected to the inner walls of the mounting seat through bearings, and the outer walls of the mounting seat are fixedly connected to the first connecting support plate 19 and the second connecting support plate 21 by screws or the like. One end of the screw rotatably passes through the first connecting support plate 19 and is fixedly connected to the driving motor for rotating the screw, and the screw is provided with the slider through a threaded sleeve. The two ends of the two guide columns 22 are fixedly connected to the first connecting support plate 19 and the second connecting support plate 21, respectively, and the two guide columns 22 are respectively located above and below the first electric screw slide 20. Each guide column 22 is slidably equipped with a guide block 301. The two guide blocks 301 are integrally formed and respectively arranged above and below the slider.

[0046] The slider of the first electric screw slide 20 is fixedly mounted on the rear end of the charging frame 3 by screws, and the two guide blocks 301 are fixedly mounted above and below the rear end of the charging frame 3 by screws, so that the slider is transmission-connected with the charging frame 3.

[0047] In addition, the loading frame 3 is a box structure with open surfaces at both the upper and lower ends. The polytetrafluoroethylene platen 26 is arranged on the lower surface of the loading frame 3, and the two ends of the polytetrafluoroethylene platen 26 are respectively fixedly connected to the first connecting support plate 19 and the second connecting support plate 21 by screws or the like. An embedded ball 304 is rotatably arranged at the edge of the lower surface of the loading frame 3, and a plurality of embedded balls 304 are arranged. These embedded balls 304 are in sliding contact with the upper surface of the polytetrafluoroethylene platen 26, further making the movement of the loading frame 3 more stable and smooth. The polytetrafluoroethylene platen 26 serves as a sealing plate that is movably arranged at the lower end of the loading frame 3.

[0048] The color sorting mechanism 4 is installed below the middle position of the polytetrafluoroethylene platen 26. Specifically, a hollow portion for unloading is provided in the middle position of the polytetrafluoroethylene platen 26. A grid material plate 35 for receiving materials is provided below the above-mentioned hollow portion on the upper surface of the color sorting mechanism 4, and each grid of the grid material plate 35 can accommodate a silica gel ball material. When in use, the first electric screw slide 20 can drive the loading frame 3 to move, so that the loading frame 3 passes through the above-mentioned hollow portion opened in the middle position of the polytetrafluoroethylene platen 26. Under the action of gravity, the silica gel ball material at the bottom of the loading frame 3 will fall into the grid material plate 35.

[0049] The first photosensitive integrated mechanism 302 is fixedly arranged on both sides of the loading frame 3, which includes a plurality of photosensitive sensors 303 distributed in an array with the detection ends facing downward, and each photosensitive sensor 303 is aligned with a grid of the grid coding plate 35, for scanning and detecting the silicone ball material dropped into the grid coding plate 35.

[0050] In addition, a second electric screw slide 28 is embedded and fixedly installed at the rear end of the color sorting mechanism 4. A second photosensitive integrated mechanism 36 is installed on the slider of the second electric screw slide 28, and the second photosensitive integrated mechanism 36 also includes a plurality of photosensitive sensors 303 distributed in an array and with the detection ends facing upward. The main structure of the second electric screw slide 28 is the same as that of the first electric screw slide 20, and the electric screw slide also belongs to the prior art, a common linear slide mechanism, and therefore will not be described in detail.

[0051] See also Figure 6 and Figure 8 The grid code plate 35 is made of infrared transmitting material, such as tempered glass or a light-transmitting acrylic plate, so that the first photosensitive integrated mechanism 302 and the second photosensitive integrated mechanism 36 can penetrate the grid code plate 35, thereby better measuring the reflectivity of the laser reaching the spherical surface.

[0052] See also Fig. 9 One end of the grid code plate 35 is rotatably connected to one side of the inner wall of the color sorting mechanism 4 through a rotating shaft, and the other end of the grid code plate 35 is rotatably connected to the other side of the inner wall of the color sorting mechanism 4 through a gear shaft 40. A stepper motor 29 is installed on one side of the outer wall of the color sorting mechanism 4, and the output shaft of the stepper motor 29 penetrates and extends to the interior of the color sorting mechanism 4, and the output shaft is meshed and connected with the gear shaft 40 through a driving gear 41. When the defective materials are sorted (the defective materials are taken out of the grid code plate 35 manually through the hollow part of the polytetrafluoroethylene table 26), the driving gear 41 can be driven by the stepper motor 29 to rotate, so that it meshes and transmits with the gear shaft 40, driving the grid code plate 35 to slowly flip, so that the silicone ball material falls into the loading box 32.

[0053] See also Figure 8 and Fig. 9The inner bottom of the color sorting mechanism 4 is provided with a push-pull groove 31, and a loading box 32 is provided inside the push-pull groove 31 in a pullable manner. The loading box 32 adopts a push-pull structure, which is convenient for transportation and replacement. Specifically, caster grooves 34 are provided on both sides of the lower end of the push-pull groove 31, and casters 39 are rotatably installed on both sides below the loading box 32, and the casters 39 are located inside the caster grooves 34, and four casters 39 are provided. In addition, a pull handle 33 is fixedly installed on the outer wall of the loading box 32.

[0054] See also Fig. 9 A weighing sensor 38 is installed on the bottom surface of the loading box 32, and a supporting plate 37 is installed on the upper surface of the weighing sensor 38. The weighing sensor 38 can detect the weight of the material in the loading box 32. When there is a lot of material, the weighing sensor 38 will send a signal to the terminal to remind the personnel to take the material.

[0055] See also Figure 8 A robot arm mounting seat 30 is fixedly provided below the front end of the color sorting mechanism 4. The robot arm mounting seat 30 is used to install a robot arm. The robot arm can be installed on the robot arm mounting seat 30 to sort out defective materials from the grid coding plate 35 instead of manual labor.

[0056] See also Figure 1-9 , a screening method for a silica gel finished product heterochromatic particle screening device, comprising the following steps:

[0057] Step 1: Pour the formed silicone balls from the feed port 6 of the vibration screening mechanism 1. Under the transmission action of the asynchronous motor 13 and the vibrator 11, the multiple groups of vibration springs 27 at the connection between the housing and the base 7 of the vibration screening mechanism 1 are used to make the screen surface of the first screen plate 23 and the second screen plate 24 generate reciprocating vibration. After the material enters, it is first located on the upper layer of the first screen plate 23. Under the action of vibration, the balls that meet the standard specifications fall along the several spherical screen holes 25 on the first screen plate 23 to the upper layer of the second screen plate 24. The balls that are larger than the specifications continue to move along the first screen plate 23 and are discharged from the first discharge port 15. The balls that are smaller than the standard specifications on the upper layer of the second screen plate 24 continue to fall to the bottom layer under the action of vibration and are discharged along the third discharge port 18. The balls that meet the standard specifications move along the second screen plate 24 and fall into the loading frame 3 from the second discharge port 17.

[0058] Step 2: When a certain amount of ball material is stored in the loading frame 3, the vibration screening mechanism 1 stops running, and the first electric screw slide 20 drives the loading frame 3 and the internal materials to move along the guide rail to the end of the guide rail. When passing through the color sorting mechanism 4, the ball material on the bottom layer of the loading frame 3 will fall into the grid material plate 35 on the upper layer of the color sorting mechanism 4 one by one. At the same time, the first photosensitive integrated mechanism 302 on one side of the loading frame 3 uses an infrared laser to scan the upper spherical surface of the silica gel in the grid, and the second photosensitive integrated mechanism 36 inside the color sorting mechanism 4 moves left and right along the inner cavity of the color sorting mechanism 4 under the transmission action of the second electric screw slide 28, and uses an infrared laser to scan the lower spherical surface of the silica gel in the grid. After scanning, the first photosensitive integrated mechanism 302 and the second photosensitive integrated mechanism 36 measure the photometric data of the laser passing through each grid, and upload the data to the terminal;

[0059] Step 3: The terminal has built-in photometric data of the laser passing through each grid when the grid coding plate does not have silicone balls placed on it, and photometric data of the laser passing through each grid when the grid coding plate has silicone balls of different colors placed on it. After receiving the real-time detection data sent by the first photosensitive integration mechanism 302 and the second photosensitive integration mechanism 36, by comparing with the built-in parameters, when there are no heterochromatic particles on the surface of the silicone ball, the reflectivity curve measured during the detection is in a smooth state, and there is no obvious fluctuation in the detection process. When there are depressions or cracks on the surface of the sphere, the reflectivity curve will have a broken fluctuation. It can be judged whether there are heterochromatic particles on the surface of the spherical silicone in each grid, and the spherical silicone grid with heterochromatic particles is marked, and the signal is further sent to the robot arm on the robot arm mounting seat 30, and the robot arm takes out the defective products according to the coordinates (this process can be replaced by manual work);

[0060] Step 4: After the defective silica gel is taken out, the stepper motor 29 drives the grid material plate 35 to slowly flip over under the action of gear transmission so that the material falls into the loading box 32 and resets;

[0061] Step 5: The first electric screw slide 20 drives the loading frame 3 and the internal materials from the end of the guide rail back to the second discharge port 17. When the loading frame 3 passes through the color sorting mechanism 4 again, the internal residual ball materials continue to fall into the grid coding plate 35. At the same time, the first photosensitive integrated mechanism 302 on the other side of the loading frame 3 uses an infrared laser to scan the upper spherical surface of the silica gel in the grid. The second photosensitive integrated mechanism 36 scans the lower spherical surface of the batch of materials under the transmission action of the second electric screw slide 28. After the defective materials are identified, they are sorted out by the robotic arm, and this reciprocating process is repeated to realize the spherical screening of the particle size of the silica gel finished product.

[0062] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for screening heterochromatic particles of finished silica gel, comprising a vibration screening mechanism (1), the vibration screening mechanism (1) comprising a vibration housing (5) and a base (7), the base (7) being installed below the vibration housing (5), a first sieve plate (23) being installed inside the vibration housing (5), a second sieve plate (24) being arranged below the first sieve plate (23), a first discharge port (15) being arranged at one end of the first sieve plate (23), an extended side material channel (16) being arranged at one end of the first discharge port (15), a second discharge port (17) being arranged at one end of the second sieve plate (24), a third discharge port (18) being arranged below one end of the vibration housing (5), and a feed port (6) being arranged above one end of the vibration housing (5); Features: Also includes: A loading frame (3) disposed below the second discharge port (17); A first photosensitive integrated mechanism (302) mounted on both sides of the loading frame (3); A guide bracket assembly (2) arranged at the rear end of the loading frame (3), the guide bracket assembly (2) comprising a first connecting support plate (19), a second connecting support plate (21), a first electric screw slide (20) and a polytetrafluoroethylene table (26), the first electric screw slide (20) being arranged between the first connecting support plate (19) and the second connecting support plate (21), and a slider of the first electric screw slide (20) being transmission-connected to the loading frame (3), the polytetrafluoroethylene table (26) being arranged on the lower surface of the loading frame (3), and two ends of the polytetrafluoroethylene table (26) being fixedly connected to the first connecting support plate (19) and the second connecting support plate (21), respectively; A color sorting mechanism (4) is installed below the middle position of the polytetrafluoroethylene table (26), a second electric guide rail (28) is embedded in the rear end of the color sorting mechanism (4), and a second photosensitive integrated mechanism (36) is installed on the slider of the second electric guide rail (28); A grid material plate (35) is provided inside the upper surface of the color sorting mechanism (4), and the grid material plate (35) is made of infrared transmission material, and a plurality of photosensitive sensors (303) are distributed in an array inside the first photosensitive integrated mechanism (302) and the second photosensitive integrated mechanism (36); One end of the grid code plate (35) is rotatably connected to one side of the inner wall of the color sorting mechanism (4) via a rotating shaft, and the other end of the grid code plate (35) is rotatably connected to the other side of the inner wall of the color sorting mechanism (4) via a gear shaft (40). A stepper motor (29) is mounted on one side of the outer wall of the color sorting mechanism (4), and the output shaft of the stepper motor (29) penetrates and extends into the interior of the color sorting mechanism (4). The output shaft of the stepper motor (29) is meshed and transmission-connected with the gear shaft (40) via a driving gear (41).

2. The device for screening different colored particles of finished silica gel according to claim 1, characterized in that: The vibration housing (5) is equipped with an exciter (11), one end of the exciter (11) is equipped with a belt transmission mechanism (12), one end of the belt transmission mechanism (12) is equipped with an asynchronous motor (13), and the output shaft of the asynchronous motor (13) is transmission-connected to the exciter (11) through the belt transmission mechanism (12), the lower end of the asynchronous motor (13) is fixedly connected to the base (7) through a motor support plate (14), both sides of the base (7) are provided with first spring seats (8), and four first spring seats (8) are provided, both sides of the vibration housing (5) are provided with second spring seats (9), and four second spring seats (9) are provided, a vibration spring (27) is installed between adjacent first spring seats (8) and second spring seats (9), the outside of the vibration spring (27) is provided with a flexible rubber sheath (10), and both ends of the flexible rubber sheath (10) are respectively bonded and connected to the first spring seat (8) and the second spring seat (9).

3. The device for screening different colored particles of finished silica gel according to claim 1, characterized in that: A plurality of spherical sieve holes (25) are arranged inside the first sieve plate (23) and the second sieve plate (24), and the spherical sieve holes (25) on the second sieve plate (24) have a smaller aperture than the spherical sieve holes (25) on the first sieve plate (23).

4. The device for screening different colored particles of finished silica gel according to claim 1, characterized in that: Guide pillars (22) are provided above and below the first electric screw slide (20), and two ends of the guide pillars (22) are fixedly connected to the first connecting support plate (19) and the second connecting support plate (21), respectively. Guide blocks (301) are installed on both sides above and below the rear end of the loading frame (3), and the loading frame (3) is slidably connected to the guide pillars (22) via the guide blocks (301). An embedded ball bearing (304) is provided at the edge of the lower surface of the loading frame (3), and a plurality of embedded ball bearings (304) are provided.

5. The device for screening different colored particles of finished silica gel according to claim 1, characterized in that: A push-pull groove (31) is provided inside the color sorting mechanism (4), caster grooves (34) are provided on both sides of the lower end of the push-pull groove (31), a loading box (32) is provided inside the push-pull groove (31), casters (39) are installed on both sides below the loading box (32), and four casters (39) are provided, and a handle (33) is installed on the outer wall of the loading box (32).

6. The device for screening different colored particles of finished silica gel according to claim 5, characterized in that: A weighing sensor (38) is installed on the bottom surface of the charging box (32), and a supporting plate (37) is installed on the upper surface of the weighing sensor (38).

7. The device for screening different colored particles of finished silica gel according to claim 1, characterized in that: A mechanical arm mounting seat (30) is provided below the front end of the color sorting mechanism (4).

8. The screening method of the device for screening heterochromatic particles of finished silica gel according to claim 1, characterized in that: The following steps are involved: Step 1: Pour the formed silicone balls into the vibrating screening mechanism (1) from the feed port (6). Under the driving action of the asynchronous motor (13) and the vibrator (11), the plurality of sets of vibration springs (27) at the connection between the housing and the base (7) of the vibrating screening mechanism (1) are coordinated to make the screen surfaces of the first screen plate (23) and the second screen plate (24) generate reciprocating vibration. After entering, the materials are firstly placed on the upper layer of the first screen plate (23). Under the action of vibration, the balls meeting the standard specifications are The balls fall along the plurality of spherical sieve holes (25) on the first sieve plate (23) to the upper layer of the second sieve plate (24); the balls larger than the standard size continue to move along the first sieve plate (23) and are discharged from the first discharge port (15); the balls smaller than the standard size located on the upper layer of the second sieve plate (24) continue to fall to the bottom layer under the action of vibration and are discharged from the third discharge port (18); the balls meeting the standard size move along the second sieve plate (24) and fall into the loading frame (3) from the second discharge port (17); Step 2: When a certain amount of ball material is stored in the loading frame (3), the vibration screening mechanism (1) stops running, and the first electric screw slide (20) drives the loading frame (3) and the internal materials to move along the guide rail to the end of the guide rail. When passing through the color sorting mechanism (4), the ball material on the bottom layer of the loading frame (3) will fall one by one into the grid material plate (35) on the upper layer of the color sorting mechanism (4). At the same time, the first photosensitive integrated mechanism (302) on one side of the loading frame (3) uses an infrared laser to scan the upper spherical surface of the silica gel in the grid, and the second photosensitive integrated mechanism (36) inside the color sorting mechanism (4) uses an infrared laser to scan the lower spherical surface of the silica gel in the grid under the transmission action of the second electric guide rail (28). After scanning, the first photosensitive integrated mechanism (302) and the second photosensitive integrated mechanism (36) measure the photometric data of the laser passing through each grid and upload the data to the terminal; Step 3: The terminal has built-in photometric data of the laser passing through each grid when the grid material plate does not have silicone balls placed thereon, and photometric data of the laser passing through each grid when the grid material plate has silicone balls of different colors placed thereon. After receiving the real-time detection data sent by the first photosensitive integrated mechanism (302) and the second photosensitive integrated mechanism (36), it can be determined whether there are different-color particles on the surface of the spherical silicone in each grid by comparing with the built-in parameters, and the spherical silicone grid with different-color particles is marked, and the signal is further sent to the robot arm on the robot arm mounting seat (30), and the robot arm removes the defective product according to the coordinates. Step 4: After the defective silica gel is removed, the stepper motor (29) drives the grid material plate (35) to slowly flip over under the action of gear transmission so that the material falls into the loading box (32) and resets; Step 5: The first electric screw slide (20) drives the loading frame (3) and the internal materials from the end of the guide rail back to the second discharge port (17). When the loading frame (3) passes through the color sorting mechanism (4) again, the residual ball materials inside continue to fall into the grid coding plate (35). At the same time, the first photosensitive integrated mechanism (302) on the other side of the loading frame (3) uses an infrared laser to scan the upper spherical surface of the silica gel in the grid. The second photosensitive integrated mechanism (36) scans the lower spherical surface of the batch of materials under the transmission action of the second electric guide rail (28). After the defective materials are identified, they are sorted out by the robot arm. This reciprocating process is repeated to achieve the spherical screening of the particle size of the silica gel finished product.

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