Screening device

Abstract

The screening device comprises a shell, a top cover is arranged above the shell, clamping rings are arranged on the periphery of the top cover, a vibration assembly is installed in the shell, a first screen is connected to the upper portion of the vibration assembly, a second screen is arranged at the upper end of the first screen, and a dispersing assembly is arranged at the upper end of the second screen. According to the plastic particle dispersing device, when a user uses the plastic particle dispersing device, plastic particles entering the inner side of the plastic particle dispersing device through the feeding port can be evenly dispersed through the arrangement of a corresponding structure and the arrangement of the dispersing assembly by means of circumferential rotation of the poke rod, and the screening efficiency is improved; plastic particles with different particle sizes can be screened through the two vibrating assemblies, then the plastic particles are discharged from different discharging ports, follow-up use is facilitated, meanwhile, the arranged vibrating assemblies generate vibration only through cooperation of a driving motor and an eccentric structure, and vibration noise is reduced.

Description

Technical Field

[0001] The utility model relates to the field of plastic particle manufacturing, and specifically relates to a screening device. Background Art

[0002] Plastic particles are semi-finished products in the plastic processing industry and can be further processed into plastic products such as plastic bags. The raw materials for processing plastic particles include plastic powder and powder materials such as antistatic masterbatch, anti-blocking masterbatch, and pearlescent masterbatch used to improve the physical properties of plastics. The plastic powder and various masterbatch powders are mixed through a stirring device, and the mixed powder is melted by heating to fully blend various raw materials. Then, an extruder is used to extrude the melted material into particles, and after cooling, the required plastic particles are formed. When the plastic raw materials fall into the granulator, the size of the cut finished products is uneven, and the unevenly sized granular plastic raw materials have uneven heat absorption. Therefore, before the production and processing of plastic particles, it is necessary to screen the plastic particles to make the sizes of the plastic particles uniform.

[0003] In a Chinese patent, a plastic particle screening machine is disclosed, with the patent number CN218857417U. In this patented plastic particle screening machine, the guiding mechanism is fixedly connected to the support frame, the screening mechanism is slidably connected to the guiding mechanism, and a horizontal driving mechanism for driving the screening mechanism to reciprocate horizontally is connected to the support frame; the screening mechanism includes an open frame, a fixed pipe, a screen mesh, a discharge port, and a sealing plate. The fixed pipe is fixedly connected to the bottom end of the open frame, the fixed pipe is slidably connected to the guiding mechanism, the screen mesh communicates with the bottom end of the open frame, the discharge port is opened on the open frame, the sealing plate is detachably connected to the discharge port, and the open frame is fixedly connected to the horizontal driving mechanism. The plastic particle screening machine collects the plastic particles remaining in the open frame through the discharge port by detachably connecting the sealing plate to the discharge port. After the screening is completed, the sealing plate is pulled, the sealing plate is separated from the discharge port, the discharge port is opened, and it is convenient to collect the plastic particles in the open frame.

[0004] The above-mentioned publicly disclosed patent has the following disadvantages:

[0005] (1) In the prior art, the plastic particles placed inside the screening device for screening will fall at one position due to the fixed position of the feeding port. Although they can be dispersed by vibration, in the case of a large quantity, due to the limitation of vibration, the screening efficiency of the device is poor.

[0006] (2) In the prior art, plastic particles of different sizes are used in different places, and the existing screening devices can only screen a limited number of plastic particles, resulting in uneven particle sizes inside the screened plastic particles, which affects subsequent use.

[0007] (3) In the prior art, most screening devices use a vibration motor to drive the screen to vibrate, thereby completing the screening of plastic particles. However, due to certain limitations of the vibration motor itself, it will generate a lot of noise and affect the surrounding environment. Utility Model Content

[0008] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a screening device.

[0009] In order to solve the above problems, the utility model proposes the following technical solutions:

[0010] A screening device comprises: a shell, a cavity is formed inside the shell, and support legs are installed on the bottom surface of the shell;

[0011] A top cover, the top cover is located at the upper end of the shell, a material inlet is provided on the surface of the top cover, a clamping ring is clamped on the bottom surface around the top cover, and the clamping ring is fixedly connected to the surface of the shell;

[0012] A vibration component, the vibration component is fixedly connected to the inner side of the shell, the vibration component includes a driving motor 1, a driving rod is installed at the output end of the driving motor 1, a linkage piece is installed at one end of the driving rod, a fixed shaft is installed on the surface of the linkage piece, a connecting rod is rotatably connected to the surface of the fixed shaft, the upper end of the connecting rod is rotatably connected to a fixing piece, a sliding cylinder is installed on the upper surface of the fixing piece, and a support rod is slidably connected to the inner side of the sliding cylinder;

[0013] Screen 1, wherein the screen 1 is fixedly connected to the upper end of the support rod, a transparent plate is installed on one side of the surface of the screen 1, a bearing plate is installed on the bottom surface of the screen 1, and a linkage rod is fixedly connected to the upper surface of the screen 1;

[0014] Screen 2, the screen 2 is fixedly connected to the upper end of the linkage rod;

[0015] A dispersion component is located above the second screen. The dispersion component includes a second drive motor. A rotating rod is installed at the output end of the second drive motor, and a toggle rod is installed at the bottom end of the rotating rod.

[0016] Furthermore, one side of the shell surface is provided with discharge port 1, discharge port 2 and discharge port 3, the discharge port 1 is located on the side of screen 2, the discharge port 2 is located on the side of screen 1, and the discharge port 3 is located on the side of the supporting plate.

[0017] Furthermore, a surface of one side of the linkage member is rotatably connected to a limit rod, the limit rod is fixedly connected to the inner side of the shell, and the fixed shaft is eccentrically connected to the inner side of the linkage member.

[0018] Furthermore, a spring is installed on the surface of the support rod, and the spring is fixedly connected to the inner side of the slide cylinder. A fixing ring is slidably connected to the outer side of the slide cylinder, and the fixing ring is fixedly connected to a bottom surface of the screen.

[0019] Furthermore, the screen 1 is a slope structure, a buffer spring is installed on the bottom surface of the screen 1, the bottom end of the buffer spring is fixedly connected to the inner side of the shell, a fixing cylinder is installed on the outer side of the buffer spring, and the fixing cylinder is fixedly connected to the inner side of the shell.

[0020] Furthermore, the screen mesh 2 is a slope structure with a high middle and low surroundings, and guide grooves are installed around the screen mesh 2.

[0021] Compared with the prior art, the beneficial effects achieved by this new method are:

[0022] (1) The utility model sets a dispersion component above the second screen. Driven by the second driving motor, the rotating rod can drive the toggle member to rotate in a circle, thereby spreading the plastic particles accumulated on the surface of the second screen. Combined with the structure of the middle height and the surrounding bottom, the plastic particles can pass through the second screen faster, thereby improving the screening efficiency.

[0023] (2) The utility model sets a screen 1 and a screen 2 inside the shell. Through the cooperation of the two screens, plastic particles of different sizes after screening can be discharged through different discharge ports, making the subsequent use of the plastic particles more convenient.

[0024] (3) The vibration assembly provided in the utility model is driven by the driving motor 1, so that the driving rod can drive the eccentrically connected fixed shaft to rotate in a circle, thereby driving the screen 1 and the screen 2 to move up and down under the mutual cooperation of the various components above, thereby generating a vibration effect and reducing the noise caused by vibration as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a stereoscopic diagram of a screening device of the utility model.

[0026] Figure 2 It is a cross-sectional view of a screening device of the utility model.

[0027] Figure 3 It is an internal structure diagram of a screening device of the utility model.

[0028] Figure 4 The utility model is a structural diagram of a vibration component of a screening device.

[0029] Figure 5 The utility model is a screening device Figure 2 Enlarged detail of point A in the middle.

[0030] As shown in the figure: 1. Housing; 2. Top cover; 3. Snap ring; 4. Vibration assembly; 5. First screen; 6. Second screen; 7. Dispersion assembly; 8. First discharge port; 9. Second discharge port; 10. Third discharge port; 101. Support leg; 201. Feed inlet; 401. First drive motor; 402. Drive rod; 403. Linkage member; 431. Limit rod; 404. Fixed shaft; 405. Connecting rod; 406. Fixing member; 407. Slide cylinder; 408. Support rod; 409. Spring; 410. Fixed ring; 501. Buffer spring; 502. Fixed cylinder; 503. Transparent plate; 504. Bearing plate; 505. Linking rod; 601. Guide groove; 701. Second drive motor; 702. Rotating rod; 703. Poking rod. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] As Figures 1 to 5 shown, a screening device includes a housing 1. The housing 1 with a cavity opened inside is supported by the support legs 101 at the bottom end, and the top cover 2 located at the upper end of the housing 1 is clamped by the snap ring 3 fixed on the surface of the housing 1. A feed inlet 201 is provided on the surface of the top cover 2 so that plastic particles can enter the housing 1 through it. A vibration assembly 4 fixed inside the housing 1 is provided with a first drive motor 401. The drive rod 402 at the output end of the first drive motor 401 is driven to rotate, so that the linkage member 403 at one end of the drive rod 402 can drive the fixed shaft 404 to rotate, so that the connecting rod 405 rotatably connected to its surface can drive the slide cylinder 407 on the upper surface to move up and down through the fixing member 406, so that the support rod 408 slidably connected inside the slide cylinder 407 supports the first screen 5 to move up and down to generate vibration. A transparent plate 503 is installed on one side of the surface of the first screen 5 for screening plastic particles, and a bearing plate 504 is provided on the bottom surface of the first screen 5 to bear the screened plastic particles, and a linking rod 505 is provided on the upper surface of the first screen 5 to connect the second screen 6. A dispersion assembly 7 located above the second screen 6 is provided with a second drive motor 701. The rotating rod 702 at the output end of the second drive motor 701 drives the poking rod 703 at the bottom end to rotate to disperse the plastic particles.

[0033] The first discharge port 8, the second discharge port 9 and the third discharge port 10 opened on one side of the surface of the housing 1 are respectively located on one side of the second screen 6, the first screen 5 and the bearing plate 504.

[0034] Through the above technical solution, by setting three discharge ports, particles of different sizes screened by the first screen 5 and the second screen 6 can be discharged from different outlets, facilitating their classification.

[0035] The limiting rod 431 rotatably connected to one side surface of the linkage 403 is fixedly connected to the inside of the housing 1, and the fixed shaft 404 is eccentrically connected to the inside of the linkage 403.

[0036] Through the above technical solution, under the limitation of the limiting rod 431, when the linkage 403 is driven to rotate by the driving rod 402, it can rotate more stably, so that the eccentrically connected fixed shaft 404 can rotate around the driving rod 402.

[0037] A spring 409 is arranged on the surface of the support rod 408 and fixed to the inside of the sliding cylinder 407, and a fixed ring 410 connected in a sliding manner is arranged on the outside of the sliding cylinder 407 and connected to the first screen 5.

[0038] Through the above technical solution, with the arrangement of the spring 409, when the sliding cylinder 407 moves up and down, it can drive the support rod 408 to vibrate through the elastic force of the spring 409, thereby driving the first screen 5 on its surface to vibrate.

[0039] A buffer spring 501 fixed to the inside of the housing 1 is arranged on the bottom surface of the first screen 5 with a slope structure, and is limited by a fixed cylinder 502 fixed to the inside of the housing 1 on the outside.

[0040] Through the above technical solution, with the cooperation of the fixed cylinder 502 and the buffer spring 501, when the vibration assembly 4 vibrates the upper first screen 5, through the elastic force support of the buffer spring 501, it has more fulcrums when moving up and down and vibrating, improving stability.

[0041] Guide grooves 601 are arranged around the second screen 6 with a slope structure that is high in the middle and low around.

[0042] Through the above technical solution, the plastic particles falling on the surface of the second screen 6 can be vibrated to its periphery by the vibration assembly 4, and through the guiding action of the guide grooves 601, the large particles can smoothly discharge from the first discharge port 8.

[0043] When in use, when the user uses the screening device, the driving motor 1 401 is turned on, so that the driving rod 402 can drive the linkage member 403 to rotate under the limit of the limit rod 431 on the other side, so that the fixed shaft 404 eccentrically connected inside can drive the connecting rod 405 rotatably connected on the surface to rotate eccentrically, so that it can drive the upper end fixing member 406 to move up and down, so that the slide 407 can move up and down, drive the spring 409 fixed on the inside to expand and contract, so that the support rod 408 connected to the spring 409 can move up and down inside the slide 407, thereby driving the upper screen 1 5 and the screen 2 6 to move up and down through the support rod 408. Vibration is generated, and plastic particles to be screened are placed into the inner side of the shell 1 through the feed port 201. The driving motor 2 701 drives the rotating rod 702 to drive the toggle rod 703 to rotate in a circle, so that the plastic particles accumulated on the surface of the screen 2 6 are evenly toggled, and screened under the vibration of the vibration component 4, so that larger particles will pass through the structure of the middle high and the surrounding bottom, and be discharged from the discharge port 8 under the guidance of the guide groove 601, while smaller particles will fall onto the surface of the screen 1 5 through the sieve holes, and under the setting of the slope structure, they can be guided to the surface of the transparent plate 503. After screening, large particles are discharged from the discharge port 2 9, and small particles are discharged from the discharge port 3 10.

[0044] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0046] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A screening device, characterized in that ,include: A shell (1), wherein a cavity is provided on the inner side of the shell (1), and a supporting leg (101) is installed on the bottom surface of the shell (1); A top cover (2), the top cover (2) being located at the upper end of the shell (1), a material inlet (201) being provided on the surface of the top cover (2), a clamping ring (3) being clamped on the bottom surface around the top cover (2), and the clamping ring (3) being fixedly connected to the surface of the shell (1); A vibration component (4), wherein the vibration component (4) is fixedly connected to the inner side of the housing (1), and the vibration component (4) comprises a driving motor (401), a driving rod (402) is installed at the output end of the driving motor (401), a linkage member (403) is installed at one end of the driving rod (402), a fixed shaft (404) is installed on the surface of the linkage member (403), a connecting rod (405) is rotatably connected to the surface of the fixed shaft (404), an upper end of the connecting rod (405) is rotatably connected to a fixing member (406), a slide cylinder (407) is installed on the upper surface of the fixing member (406), and a support rod (408) is slidably connected to the inner side of the slide cylinder (407); Screen 1 (5), the screen 1 (5) is fixedly connected to the upper end of the support rod (408), a transparent plate (503) is installed on one side of the surface of the screen 1 (5), a bearing plate (504) is installed on the bottom surface of the screen 1 (5), and a linkage rod (505) is fixedly connected to the upper surface of the screen 1 (5); Screen 2 (6), the screen 2 (6) is fixedly connected to the upper end of the linkage rod (505); A dispersion component (7), the dispersion component (7) is located above the second screen (6), the dispersion component (7) comprises a second drive motor (701), a rotating rod (702) is installed at the output end of the second drive motor (701), and a toggle rod (703) is installed at the bottom end of the rotating rod (702).

2. A screening device according to claim 1, characterized in that: One side of the surface of the shell (1) is provided with discharge port one (8), discharge port two (9) and discharge port three (10), the discharge port one (8) is located on the side of the screen two (6), the discharge port two (9) is located on the side of the screen one (5), and the discharge port three (10) is located on the side of the supporting plate (504).

3. A screening device according to claim 1, characterized in that: A surface on one side of the linkage member (403) is rotatably connected to a limit rod (431), the limit rod (431) is fixedly connected to the inner side of the housing (1), and the fixed shaft (404) is eccentrically connected to the inner side of the linkage member (403).

4. A screening device according to claim 1, characterized in that: A spring (409) is installed on the surface of the support rod (408), and the spring (409) is fixedly connected to the inner side of the slide cylinder (407). A fixing ring (410) is slidably connected to the outer side of the slide cylinder (407), and the fixing ring (410) is fixedly connected to the bottom surface of the screen (5).

5. A screening device according to claim 1, characterized in that: The screen mesh 1 (5) is a slope structure, a buffer spring (501) is installed on the bottom surface of the screen mesh 1 (5), the bottom end of the buffer spring (501) is fixedly connected to the inner side of the shell (1), and a fixed cylinder (502) is installed on the outer side of the buffer spring (501), and the fixed cylinder (502) is fixedly connected to the inner side of the shell (1).

6. A screening device according to claim 1, characterized in that: The second screen (6) is a slope structure with a high middle and low surroundings, and a guide groove (601) is installed around the second screen (6).

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