Screening device for degradable plastic preparation

Abstract

The screening device comprises a machine body and a feeding port, a screening assembly and an impurity removing part are arranged on the inner side of the machine body, the screening assembly comprises a dredging part, the dredging part comprises a screening plate, the screening plate is arranged at the bottom of the feeding port and located on the inner side of the machine body, and the impurity removing part is arranged on the screening plate. A dustproof cover is installed on the top of the machine body, a traction sliding block is movably connected to the inner side of the dustproof cover, telescopic shafts are distributed at the bottom of the traction sliding block, and the ends, away from the traction sliding block, of the telescopic shafts are connected with scraping plates. According to the screening device for degradable plastic preparation, the traction sliding block which linearly reciprocates is always covered by the dustproof cover, external dust is prevented from entering the screening device, through the telescopic shaft which is movably connected in a sleeved mode, when the height of the screening plate is changed, the scraping plate is always attached to the surface of the screening plate, and the screening effect is improved. And the raw materials on the surface of the sieve plate are removed through driving of the traction sliding block, and blocking of the feeding port is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biodegradable plastics, in particular to a screening device for preparing degradable plastics. Background Art

[0002] Degradable plastics are a type of plastics that can be degraded into small molecules through physical, chemical, or biological processes under specific environmental conditions. According to the degradation method, degradable plastics are mainly divided into biodegradable plastics, photo-degradable plastics, and oxidative-degradable plastics, etc.

[0003] By blending degradable materials with traditional plastics to endow traditional plastics with degradable properties, the Chinese patent with the authorized announcement number CN218797216U discloses a screening device for preparing biodegradable plastics. It makes the pendulum block reciprocate back and forth in the fixed block, and the machine body fixedly connected by the support block moves repeatedly under the movement of the vibration block, thereby generating vibration, so that the biodegradable plastic particles are screened into different layers under vibration.

[0004] When performing particle size grading on the raw materials for preparing degradable plastics, screening devices such as sieve meshes, vibrating motors, and sieve frames are required to classify and screen the raw materials and remove impurities, removing large particles or impurities to ensure the quality and purity of the degradable plastics. When a large amount of raw materials are poured into the device at one time, the raw materials are prone to clogging and caking during the screening process. Especially when the moisture content of the material is high or the particle viscosity is large, it is easy to cause clogging of the feeding port, affecting the screening effect. Summary of the Utility Model

[0005] In view of the above problems that when a large amount of raw materials are poured into the device at one time, the raw materials are prone to clogging and caking during the screening process, especially when the moisture content of the material is high or the particle viscosity is large, it is easy to cause clogging of the feeding port, affecting the screening effect, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a screening device for preparing degradable plastics, and its purpose is to: drive the scraper that always fits the sieve plate to move synchronously through the reciprocating traction slider, clean the raw materials on the surface of the sieve plate, and avoid clogging the feeding port.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: A screening device for preparing degradable plastics, which includes a machine body and a feeding port. The feeding port is opened on both sides of the machine body. A screening component and an impurity removing component are arranged inside the machine body, and the impurity removing component is located at the bottom of the screening component;

[0008] The screening component includes a dredging member, the dredging member includes a sieve plate, the sieve plate is arranged at the bottom of the feeding port and inside the machine body, a dust cover is installed on the top of the machine body, and a traction slider is movably connected inside the dust cover and on top of the sieve plate;

[0009] The bottom of the traction slider is arranged with telescopic shafts distributed in an array, one end of the telescopic shaft away from the traction slider is connected with a scraper, and the scraper is movably connected to the top of the sieve plate through the telescopic shaft.

[0010] As a preferred scheme of the screening device for the preparation of degradable plastics of the present invention, wherein: the traction slider is movably connected to the top of the machine body through a traction shaft, one end of the traction shaft away from the traction shaft is hinged with a sleeve A, and one end of the sleeve A is threadedly connected with a sleeve B.

[0011] As a preferred scheme of the screening device for the preparation of degradable plastics of the present invention, wherein: the axial center lines of the sleeve A and the sleeve B are on the same straight line, one end of the sleeve B away from the sleeve A is hinged with a power arm, and the power arm is movably connected to the top of the machine body.

[0012] As a preferred scheme of the screening device for the preparation of degradable plastics of the present invention, wherein: the screening component further includes a sorting member, the sorting member includes a sieve bed, the sieve bed is obliquely arranged inside the machine body through a rotating shaft, a vibration motor is installed on the outside of the sieve bed, and the vibration motor is located at the bottom of the sieve plate.

[0013] As a preferred scheme of the screening device for the preparation of degradable plastics of the present invention, wherein: lifting sliders are fixedly installed on both sides of the sieve plate, the sieve plate is movably connected to the inside of the sieve bed through the lifting sliders, spring seats are arranged at the bottoms of the lifting sliders, and the lifting sliders and the spring seats correspond one by one.

[0014] As a preferred scheme of the screening device for the preparation of degradable plastics of the present invention, wherein: a guide plate is fixedly installed at the bottom of the sieve plate, one end of the guide plate is provided with a discharge port, and the discharge port is located at the bottom of the sieve plate.

[0015] As a preferred scheme of the screening device for the preparation of degradable plastics of the present invention, wherein: the impurity removal member includes a rotating roller, the rotating roller is located above the discharge port, electromagnetic bodies are annularly arrayed on the outside of the rotating roller, a slag discharge port is arranged at the top of the discharge port, detection probes are installed on both sides of the slag discharge port, and a baffle is fixedly installed between the detection probes.

[0016] The beneficial effects of the present invention:

[0017] 1. The traction slider moving in a straight line reciprocating motion is always covered by the dust cover to prevent external dust from entering. Through the telescopic shaft sleeved movably, when the height of the sieve plate changes, the scraper always keeps in contact with the surface of the sieve plate, and the raw materials on the surface of the sieve plate are removed by the drive of the traction slider, avoiding blockage of the feed inlet.

[0018] 2. The spring seat provides buffering and reset for the sieve plate. The raw materials that can pass through the sieve holes in the sieve plate are collected by the material guide plate and discharged from the device through the discharge port, so as to sort the raw materials by size.

[0019] 3. Through the electromagnet in the energized state, the fine metal particles in the raw materials on the material guide plate are adsorbed and removed. The position of the electromagnet is detected by the detection probe, and when the electromagnet corresponds to the slag discharge port, the power is cut off, so that the electromagnet loses magnetism, and the impurities fall onto the baffle, thus completing the impurity removal of the screened raw materials. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0021] Figure 1 It is the overall structure schematic diagram of the screening device for the preparation of degradable plastics of the present invention.

[0022] Figure 2 It is the sectional structure schematic diagram of the screening device for the preparation of degradable plastics of the present invention.

[0023] Figure 3 It is the sectional structure schematic diagram of the screening component of the screening device for the preparation of degradable plastics of the present invention.

[0024] Figure 4 It is the structure schematic diagram of the dredging part of the screening device for the preparation of degradable plastics of the present invention.

[0025] Figure 5 It is the structure schematic diagram of the sorting part of the screening device for the preparation of degradable plastics of the present invention.

[0026] Figure 6 It is for the screening device for the preparation of degradable plastics of the present invention Figure 2 The enlarged structure schematic diagram of part A.

[0027] Description of the reference numerals:

[0028] 1. Body; 2. Feeding port; 3. Screening component; 31. Unclogging part; 311. Sieve plate; 312. Dust-proof cover; 313. Traction slider; 314. Telescopic shaft; 315. Scraper; 316. Traction shaft; 317. Sleeve A; 318. Sleeve B; 319. Power arm; 32. Sorting part; 321. Sieve bed; 322. Rotating shaft; 323. Vibration motor; 324. Lifting slider; 325. Spring seat; 326. Guide plate; 327. Discharge port; 4. Impurity removal part; 41. Rotating roller; 42. Electromagnet; 43. Slag discharge port; 44. Detection probe; 45. Baffle plate. Detailed implementation manners

[0029] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given with reference to the accompanying drawings of the specification. Embodiment

[0030] Refer to Figures 1-6 , which is the first embodiment of the present utility model, provides a screening device for the preparation of degradable plastics. This screening device for the preparation of degradable plastics includes a body 1 and a feeding port 2. The feeding port 2 is opened on both sides of the body 1. Inside the body 1, a screening component 3 and an impurity removal part 4 are provided. The impurity removal part 4 is located at the bottom of the screening component 3. The screening component 3 includes an unclogging part 31. The unclogging part 31 includes a sieve plate 311. The sieve plate 311 is arranged at the bottom of the feeding port 2 and inside the body 1. A dust-proof cover 312 is installed on the top of the body 1. Inside the dust-proof cover 312 and on the top of the sieve plate 311, a traction slider 313 is movably connected. At the bottom of the traction slider 313, telescopic shafts 314 are arranged in an array. One end of the telescopic shaft 314 away from the traction slider 313 is connected to a scraper 315. The scraper 315 is movably connected to the top of the sieve plate 311 through the telescopic shaft 314. The body 1 can add raw materials to be processed onto the sieve plate 311 through the feeding ports 2 on both sides at the same time. The traction slider 313 can move in the groove opened in the body 1 and is always covered by the dust-proof cover 312 during the movement, preventing external dust from entering. The scraper 315 can always keep in contact with the surface of the sieve plate 311 through the telescopically sleeved telescopic shaft 314 when the height of the sieve plate 311 changes, removing the raw materials on the surface of the sieve plate 311 and preventing the feeding port 2 from being blocked.

[0031] The traction slider 313 is movably connected to the top of the body 1 through a traction shaft 316. One end of the traction shaft 316 away from the traction shaft 316 is hinged to a sleeve A 317. One end of the sleeve A 317 is threadedly connected to a sleeve B 318. The traction slider 313 can move in a direction parallel to the traction shaft 316 under the drive of the traction shaft 316. The traction shaft 316 is hinged to the sleeve A 317 and the deflection angle remains unchanged during the movement. The sleeve A 317 and the sleeve B 318 are connected by a bidirectional screw.

[0032] The axial centerlines of sleeve A317 and sleeve B318 are on the same straight line. One end of sleeve B318 away from sleeve A317 is hinged with a power arm 319. The power arm 319 is movably connected to the top of the machine body 1. When sleeve A317 and sleeve B318 deflect, they are always on the same straight line. The power arm 319 is driven by a motor and drives the connected sleeve B318 to deflect.

[0033] The screening component 3 further includes a sorting member 32. The sorting member 32 includes a screening bed 321. The screening bed 321 is inclinedly arranged inside the machine body 1 through a rotating shaft 322. A vibration motor 323 is installed on the outer side of the screening bed 321. The vibration motor 323 is located at the bottom of the sieve plate 311. The inclined arrangement of the screening bed 321 facilitates the screening of raw materials, and the vibration motor 323 provides vibration to the sieve plate 311, causing the height of the sieve plate 311 to change, so as to sort the raw materials on the surface by size.

[0034] Lifting sliders 324 are fixedly installed on both sides of the sieve plate 311. The sieve plate 311 is movably connected to the inside of the screening bed 321 through the lifting sliders 324. Spring seats 325 are arranged at the bottoms of the lifting sliders 324. The lifting sliders 324 and the spring seats 325 correspond one by one. The sieve plate 311 moves in the groove of the screening bed 321 through the lifting sliders 324, keeping the inclination angle unchanged, and the deformation of the springs in the spring seats 325 provides buffering and reset for the sieve plate 311.

[0035] A material guiding plate 326 is fixedly installed at the bottom of the sieve plate 311. One end of the material guiding plate 326 is provided with a discharge port 327. The discharge port 327 is located at the bottom of the sieve plate 311. The material guiding plate 326 has the same inclination angle as the screening bed 321, and can collect the raw materials that can pass through the sieve holes in the sieve plate 311 and discharge them from the device through the discharge port 327.

[0036] The impurity removing member 4 includes a rotating roller 41. The rotating roller 41 is located above the discharge port 327. Electromagnets 42 are annularly and arrayedly distributed on the outer side of the rotating roller 41. A slag discharge port 43 is arranged at the top of the discharge port 327. Detection probes 44 are installed on both sides of the slag discharge port 43. A baffle 45 is fixedly installed between the detection probes 44. The rotating roller 41 can be driven by a motor to rotate above the discharge port 327. The electromagnets 42 are electromagnets, and when energized, they can adsorb and remove the fine metal particles in the raw materials on the material guiding plate 326. The detection probes 44 can detect the position of the electromagnets 42 and cut off the power when the electromagnets 42 correspond to the slag discharge port 43, so that the electromagnets 42 lose magnetism and the impurities fall onto the baffle 45.

[0037] In use, raw material particles required for preparing degradable plastics to be processed are added to the sieve plate 311 in the machine body 1 through the feeding ports 2 on both sides of the machine body 1. Larger particles that cannot pass through the sieve plate 311 remain on the sieve plate 311. The power arm 319 is driven by a motor, causing the articulated sleeve B318 to deflect. The sleeve A317 connected by a bidirectional screw moves in a straight line in the same line as the sleeve B318, driving the traction slider 313 connected to the traction shaft 316 to perform a linear reciprocating motion in a direction parallel to the traction shaft 316 in the groove of the machine body 1. During the movement, the traction slider 313 is always covered by the dust-proof cover 312 to prevent external dust from entering. Through the telescopically sleeved telescopic shaft 314, when the height of the sieve plate 311 changes, the scraper 315 can always be in contact with the surface of the sieve plate 311, and the raw materials on the surface of the sieve plate 311 are removed by the drive of the traction slider 313 to prevent blockage of the feeding port 2. The vibration motor 323 provides vibration for the sieve plate 311, causing the height of the sieve plate 311 to change under the restriction of the sieve bed 321. The sieve bed 321 is inclined by the rotating shaft 322. The lifting slider 324 ensures that when the height of the sieve plate 311 changes, the inclination angle is the same as that of the sieve bed 321. The spring seat 325 provides buffering and reset for the sieve plate 311. The raw materials that can pass through the sieve holes in the sieve plate 311 are collected by the guide plate 326 and discharged from the device through the discharge port 327, thereby sorting the raw materials by size. The rotating roller 41 driven by a motor rotates at the top of the discharge port 327, and the fine metal particles in the raw materials on the guide plate 326 are adsorbed and removed by the electromagnet 42 in the energized state. The position of the electromagnet 42 is detected by the detection probe 44, and when the electromagnet 42 corresponds to the slag discharge port 43, the power is cut off, causing the electromagnet 42 to lose magnetism, and the impurities fall onto the baffle 45, thus completing the impurity removal of the screened raw materials.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A screening device for preparing degradable plastics, comprising a body (1) and a feed inlet (2), wherein the feed inlet (2) is provided on both sides of the body (1), and characterized in that: A screening component (3) and a debris removal component (4) are arranged on the inner side of the machine body (1), and the debris removal component (4) is located at the bottom of the screening component (3); The screening component (3) comprises a dredging member (31), the dredging member (31) comprises a sieve plate (311), the sieve plate (311) is arranged at the bottom of the feed inlet (2) and located on the inner side of the machine body (1), a dust cover (312) is installed on the top of the machine body (1), and a traction slider (313) is movably connected to the inner side of the dust cover (312) and on the top of the sieve plate (311); Telescopic shafts (314) are arranged at the bottom of the traction slider (313), one end of the telescopic shaft (314) away from the traction slider (313) is connected to a scraper (315), and the scraper (315) is movably connected to the top of the screen plate (311) via the telescopic shaft (314).

2. A screening device for preparing degradable plastics according to claim 1, characterized in that: The traction slider (313) is movably connected to the top of the machine body (1) via a traction shaft (316); one end of the traction shaft (316) away from the traction shaft (316) is hingedly connected to a sleeve A (317); one end of the sleeve A (317) is threadedly connected to a sleeve B (318).

3. A screening device for preparing degradable plastics according to claim 2, characterized in that: The axial midlines of the sleeve A (317) and the sleeve B (318) are on the same straight line; one end of the sleeve B (318) away from the sleeve A (317) is hingedly connected to a power arm (319); the power arm (319) is movably connected to the top of the machine body (1).

4. A screening device for preparing degradable plastics according to claim 1, characterized in that: The screening component (3) further comprises a screening component (32), wherein the screening component (32) comprises a sieve bed (321), wherein the sieve bed (321) is tiltedly arranged on the inner side of the machine body (1) via a rotating shaft (322), and a vibration motor (323) is installed on the outer side of the sieve bed (321), wherein the vibration motor (323) is located at the bottom of the sieve plate (311).

5. A screening device for preparing degradable plastics according to claim 4, characterized in that: Lifting sliders (324) are fixedly mounted on both sides of the sieve plate (311); the sieve plate (311) is movably connected to the inner side of the sieve bed (321) via the lifting sliders (324); spring seats (325) are arranged at the bottom of the lifting sliders (324); the lifting sliders (324) and the spring seats (325) correspond to each other one by one.

6. A screening device for preparing degradable plastics according to claim 5, characterized in that: A material guide plate (326) is fixedly mounted on the bottom of the sieve plate (311); a material discharge port (327) is provided at one end of the material guide plate (326); and the material discharge port (327) is located at the bottom of the sieve plate (311).

7. A screening device for preparing degradable plastics according to claim 1, characterized in that: The impurity removal component (4) comprises a rotating roller (41), the rotating roller (41) being located at the top of the material discharge port (327), an electromagnet (42) being distributed in a circular array outside the rotating roller (41), a slag discharge port (43) being provided at the top of the material discharge port (327), detection probes (44) being installed on both sides of the slag discharge port (43), and a baffle (45) being fixedly installed between the detection probes (44).

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