Automatic plastic particle screening device

Abstract

The utility model belongs to the technical field of plastic particle processing, and particularly relates to an automatic plastic particle screening device which comprises a feeding hopper, a material moving assembly, a screening assembly and a loading container. The screening assembly comprises a screening net used for screening plastic particles. The loading container is used for loading the screened plastic particles; the material moving assembly comprises a conveying net belt capable of rotating. A vibration motor for enabling the conveying mesh belt to vibrate is arranged on the conveying mesh belt; the mesh size of the conveying mesh belt is larger than that of the plastic particles, and the bottom face of the conveying mesh belt is attached to the top face of the screening net, so that the plastic particles can penetrate through the mesh of the conveying mesh belt and then be blocked by the screening net or penetrate through the mesh of the screening net. According to the device, screened large-size particles can be automatically conveyed to the next procedure, manual or mechanical dumping is not needed, the operation procedures are reduced, and use is convenient; in addition, the user can continuously add the plastic mixed particles for screening, batch screening is not needed, the screening efficiency is improved, and the automation degree is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic particle processing, and in particular relates to an automatic screening device for plastic particles. Background Art

[0002] In daily life, people often use plastic materials to make daily necessities, such as disposable lunch boxes, mobile phone cases, liquid storage bottles, etc. During processing, plastic raw materials are injection molded into granules for easy storage and transportation. However, the plastic granules after preliminary cutting are often mixed with raw materials of incomplete shapes, or granules of different sizes are mixed together. Subsequent screening is required to accurately classify and remove impurities from the plastic granules.

[0003] There are some screening mechanisms for plastic particles in the prior art. For example, Chinese utility model patent CN217395420U discloses a novel plastic raw material conveying device, including a screening processing mechanism and a telescopic mechanism; the screening processing mechanism includes a vibration motor and a screening grid frame, the screening grid frame is tilted, and a waste carrying box is provided under the screening grid frame; the telescopic mechanism includes a baffle; when in use, the plastic raw material is placed on the screening grid frame, the vibration motor is started to vibrate the screening grid frame, and the vibration of the screening grid frame causes impurities to pass through the screening grid frame and fall into the waste carrying box. During this process, the baffle is used on one side of the screening grid frame to prevent the plastic raw material from sliding off; after screening is completed, the baffle is removed so that the plastic raw material can slide down along the tilt direction of the screening grid frame to achieve impurity removal of the plastic raw material.

[0004] In addition, Chinese utility model patent CN217862271U also discloses a screening mechanism for processing plastic particles, including a screening device, the screening device including a discharge plate and a screening plate, the discharge plate having a plurality of through holes therein, the through holes including a plurality of groups, and the apertures of each group of through holes are different; the screening plate having a plurality of discharge holes of different sizes therein; when in use, the screening plate is rotated so that the position of the discharge hole corresponds to the through hole of the desired aperture, the plastic particles are placed on the screening plate, and the plastic particles smaller than the aperture fall from the discharge hole, so as to achieve screening of the plastic particles and classified storage.

[0005] However, both of the above-mentioned utility model patents require adding raw materials for a second batch of screening after one batch of plastic particles has been screened, which makes it difficult to achieve continuous screening of plastic particles, making the process time-consuming and the screening efficiency low. In addition, the screened raw materials need to be dumped manually or mechanically, which is cumbersome to operate and inconvenient to use. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic screening device for plastic particles, aiming to solve the technical problems in the prior art that "plastic particles are difficult to screen continuously, which makes the process time-consuming, the screening efficiency is low, and the screened raw materials need to be dumped manually or mechanically, which is cumbersome to operate."

[0007] To achieve the above-mentioned purpose, an embodiment of the utility model provides an automatic screening device for plastic particles, comprising a main body bracket for fixing, a feeding funnel, a material transfer assembly, a screening assembly, and a loading container; the screening assembly comprises a screening net for screening plastic particles; the loading container is used to load the screened plastic particles; the material transfer assembly comprises a driving motor, a rotating shaft, and a conveyor mesh belt; the driving motor is used to drive the rotating shaft to rotate, and the rotation of the rotating shaft can drive the conveyor mesh belt to rotate; the conveyor mesh belt is provided with a vibration motor for vibrating it; the mesh size of the conveyor mesh belt is larger than the size of the plastic particles, and the bottom surface of the conveyor mesh belt is close to the top surface of the screening net, so that the plastic particles can pass through the mesh of the conveyor mesh belt and then be blocked by the screening net or pass through the mesh of the screening net; the feeding funnel, the conveyor mesh belt, the screening net, and the loading container are all fixedly connected to the main body bracket and arranged in sequence from high to low along the same longitudinal axis.

[0008] Optionally, the screening assembly includes a screening frame; the screening frame is fixedly connected to the main body support; a material passage for particles to pass through is provided from the top surface to the bottom surface of the screening frame, and the outer wall of the screening net is connected to the inner wall of the material passage channel.

[0009] Optionally, the screening net is detachably connected to the screening frame; an outer side wall of the screening frame is connected to the material transfer channel with a connecting port, and the screening net passes through the connecting port to enter or exit the material transfer channel.

[0010] Optionally, the inner side wall of the screening frame is provided with a support platform, and the support platform is used to be connected to the outer periphery of the screening net.

[0011] Optionally, the conveyor belt forms a containing frame along its rotation path, and the screening assembly and the loading container are both placed in the containing frame; the screening assembly is arranged on the top of the containing frame.

[0012] Optionally, a loading bracket for supporting the loading container is provided in the accommodating frame; a limiting member is protrudingly provided on the loading bracket, and the limiting member is used to limit the position of the loading container on the loading bracket.

[0013] Optionally, a depth measuring probe is provided at the container opening of the loading container, and the depth measuring probe can transmit signals with a sound alarm. The depth measuring probe is used to make the sound alarm emit an alarm sound when measuring whether the loading container is fully loaded.

[0014] Optionally, a feed end and a discharge end are provided on the top surface of the conveyor mesh belt; a feed funnel is provided above the feed end, and the conveyor mesh belt can transport plastic particles from the feed end to the discharge end; an opening is provided on the bottom side of the feed funnel facing the discharge end.

[0015] Optionally, baffles are provided on both the left and right sides of the discharge end; the two baffles are respectively connected to the left and right sides of the opening.

[0016] Optionally, the vibration motor is arranged at the feed end, and the vibration amplitude of the conveyor belt decreases from the feed end to the discharge end.

[0017] Compared with the prior art, the above one or more technical solutions in the automatic screening device for plastic particles provided by the embodiment of the utility model have at least one of the following technical effects:

[0018] When in use, the plastic mixed particles are poured into the feeding funnel, and the feeding funnel guides the mixed particles to the conveyor mesh belt, and the conveyor mesh belt rotates to drive the mixed particles to move; during this process, the vibration motor is started to vibrate the conveyor mesh belt, so that the mixed particles above it are vibrated and scattered for easy screening; the scattered mixed particles are placed in the mesh holes of the conveyor mesh belt. Because the bottom surface of the conveyor mesh belt is close to the top surface of the screening net, the large-sized particles in the mixed particles cannot pass through the mesh holes of the screening net, and will be stuck in the mesh holes of the conveyor mesh belt and continue to move under the push of the conveyor mesh belt; while the small-sized particles or impurities in the mixed particles will pass through the mesh holes of the screening net and then fall into the loading container; the practicality of this invention is that the large-sized particles after screening can be automatically transported to the next process through the mutual cooperation of the material moving component and the screening component, without the need for manual or mechanical dumping, the manual operation process is reduced, and it is easy to use; in addition, the user can continuously add plastic mixed particles for screening without batches, so as to improve the screening efficiency and the degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a cutaway schematic diagram of the utility model.

[0022] Figure 3 Schematic diagram of the structure of the screening component.

[0023] Figure 4 It is a schematic diagram of the structure of the conveyor belt.

[0024] Among them, the reference numerals in the figure are:

[0025] 1. Main frame; 2. Feeding funnel; 3. Material transfer assembly; 4. Screening assembly; 5. Loading container;

[0026] 21. Open your mouth;

[0027] 31. driving motor; 32. rotating shaft; 33. conveying mesh belt; 331. containing frame; 332. feeding end; 333. discharging end; 334. baffle; 34. vibration motor;

[0028] 41. Screening frame; 411. Material passing channel; 412. Connecting port; 413. Support platform; 42. Screening net;

[0029] 51. Loading bracket; 511. Limiting piece; 52. Depth measuring probe. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] In one embodiment of the present invention, a plastic particle automatic screening device is provided. Figure 1 , including a main body support 1 for fixing, on which a feed funnel 2, a material transfer assembly 3, a screening assembly 4, and a loading container 5 are arranged; the screening assembly 4 includes a screening net 42 for screening plastic particles, and the screening net 42 has a plurality of mesh holes, so that small-sized particles and impurities can pass through while isolating large-sized particles; the loading container 5 is used to load the screened small-sized plastic particles.

[0035] refer to Figure 2 The material moving assembly 3 includes a driving motor 31, a rotating shaft 32, and a conveying mesh belt 33; the driving motor 31 is used to drive the rotating shaft 32 to rotate, and the rotation of the rotating shaft 32 can drive the conveying mesh belt 33 to rotate, and when the conveying mesh belt 33 rotates, it can drive the particles placed above it to move; the conveying mesh belt 33 is provided with a vibration motor 34 for vibrating it, and when the vibration motor 34 is started, it can drive the conveying mesh belt 33 to vibrate, so as to disperse the plastic particles above it, so as to prevent them from forming accumulation and being unfavorable for screening; the conveying mesh belt 33 is made of alloy material, and has a plurality of mesh holes on the conveying mesh belt 33, and the mesh hole diameter of the conveying mesh belt 33 is larger than the size of the plastic particles, so that the large-sized particles and the small-sized particles therein can be separated. All particles can pass through the mesh holes of the conveyor mesh belt 33; the bottom surface of the conveyor mesh belt 33 is close to the top surface of the screening net 42, large-sized particles are blocked by the screening net 42, and continue to move under the drive of the conveyor mesh belt 33; small-sized particles can pass through the mesh holes of the screening net 42 to fall into the loading container 5 below; in particular, a gap is formed between the bottom surface of the conveyor mesh belt 33 and the top surface of the screening net 42, and the gap is used to enable large-sized particles to form a snap connection with the mesh holes of the conveyor mesh belt 33, and then move under the drive of the conveyor mesh belt 33; the feed funnel 2, the conveyor mesh belt 33, the screening net 42, and the loading container 5 are all fixedly connected to the main frame 1 and arranged in sequence from high to low along the same longitudinal axis.

[0036] Compared with the prior art, the above one or more technical solutions in the automatic screening device for plastic particles provided by the embodiment of the utility model have at least one of the following technical effects:

[0037] When in use, the mixed plastic particles are poured into the feeding funnel 2, and the feeding funnel 2 guides the mixed particles to the conveyor mesh belt 33, and the conveyor mesh belt 33 rotates to drive the mixed particles to move; during this process, the vibration motor 34 is started to vibrate the conveyor mesh belt 33, so that the mixed particles above it are vibrated and scattered for easy screening; the scattered mixed particles are placed in the mesh holes of the conveyor mesh belt 33, because the bottom surface of the conveyor mesh belt 33 is close to the top surface of the screening net 42, the large-sized particles in the mixed particles cannot pass through the mesh holes of the screening net, and the mesh holes of the conveyor mesh belt 33 are stuck. The small-sized particles or impurities in the mixed particles will pass through the mesh holes of the screening net 42 and fall into the loading container 5. The practicality of the present invention is that the large-sized particles after screening can be automatically transported to the next process through the cooperation between the material transfer component 3 and the screening component 4, without manual or mechanical dumping, reducing the manual operation process and making it easy to use. In addition, the user can continuously add plastic mixed particles for screening without batches, so as to improve the screening efficiency and the degree of automation.

[0038] In another embodiment of the present invention, reference Figure 3 The screening assembly 4 includes a screening frame 41; the screening frame 41 is fixedly connected to the main support 1; a material passage 411 for allowing small-sized particles to pass through is provided from the top surface to the bottom surface of the screening frame 41, and the outer wall of the screening net 42 is connected to the inner wall of the material passage 411.

[0039] Furthermore, the screening net 42 is detachably connected to the screening frame 41; the outer wall of the screening frame 41 is connected to the feed channel 411 with a connection port 412, and the screening net 42 passes through the connection port 412 to enter or exit the feed channel 411, so as to facilitate maintenance and replacement of the screening net 42; the mesh aperture specifications of the screening net 42 can be set to 0.1-3mm, 3-5mm, 5-8mm, which can be selected as needed, so as to facilitate screening of plastic particles of different sizes.

[0040] Furthermore, a support platform 413 is provided on the inner side wall of the screening frame 41, and the support platform 413 is used to connect with the outer periphery of the screening net 42 to improve the stability when the screening net 42 is connected to the screening frame 41, and can be used to limit the connection position of the screening net 42 in the screening frame 41.

[0041] In another embodiment of the present invention, reference Figure 2 The conveyor belt 33 forms a containing frame 331 along its rotation path, and the screening component 4 and the loading container 5 are both placed in the containing frame 331; the screening component 4 is arranged at the top of the containing frame 331, so that the top of the screening net 42 is close to the bottom of the conveyor belt 33, thereby improving the screening efficiency and space utilization.

[0042] Furthermore, a loading bracket 51 for supporting the loading container 5 is provided in the accommodating frame 331 ; a limiting member 511 is protruded from the loading bracket 51 , and the limiting member 511 is used to limit the position of the loading container 5 on the loading bracket 51 , so that the loading container 5 is not easy to fall from the loading bracket 51 .

[0043] In another embodiment of the present invention, reference Figure 2 A depth measuring probe 52 is provided at the container mouth of the loading container 5; the depth measuring probe 52 and a sound alarm transmit signals via wireless Bluetooth or wired components. The depth measuring probe 52 is used to transmit signals to the sound alarm to make it emit an alarm sound when measuring that the loading container 5 is full, so as to remind the staff to deal with the particles in the loading container 5.

[0044] In another embodiment of the present invention, reference Figure 2 The top surface of the conveyor mesh belt 33 is provided with a feed end 332 and a discharge end 333 along its rotation direction; the feed hopper 2 is arranged above the feed end 332, and the conveyor mesh belt 33 can transport the plastic particles from the feed end 332 to the discharge end 333; the bottom of the feed hopper 2 is provided with an opening 21 on one side facing the discharge end 333 for the plastic particles on the conveyor mesh belt 33 to pass through.

[0045] Furthermore, baffles 334 are provided on both the left and right sides of the discharge end 333 ; the two baffles 334 are respectively connected to the left and right sides of the opening 21 , so that the plastic particles on the conveyor belt 33 are not easy to fall off.

[0046] Furthermore, the vibration motor 34 is arranged at the feed end 332, so that the vibration amplitude of the conveyor mesh belt 33 gradually weakens from the feed end 332 to the discharge end 333, so that large-sized particles are more stable when entering the storage box or transportation device at the discharge end 333; of course, in other embodiments, a plurality of vibration motors 34 may be provided, and the plurality of vibration motors 34 are evenly distributed on the conveyor mesh belt 33, so that the conveyor mesh belt 33 has a continuous and stable vibration frequency at different positions along its moving direction, so as to improve the screening accuracy of the plastic mixed particles and reduce omissions.

[0047] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0048] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A plastic particle automatic screening device, comprising a main body bracket (1) for fixing; characterized in that: The invention comprises a feeding hopper (2), a material transfer assembly (3), a screening assembly (4), and a loading container (5); the screening assembly (4) comprises a screening net (42) for screening plastic particles; the loading container (5) is used to load the screened plastic particles; the material transfer assembly (3) comprises a driving motor (31), a rotating shaft (32), and a conveying mesh belt (33); the driving motor (31) is used to drive the rotating shaft (32) to rotate, and the rotation of the rotating shaft (32) can drive the conveying mesh belt (33) to rotate; the conveying mesh belt (33) is provided with a The vibrating motor (34) generates vibration; the mesh aperture of the conveyor mesh belt (33) is larger than the aperture of the plastic particles, and the bottom surface of the conveyor mesh belt (33) is close to the top surface of the screening net (42), so that the plastic particles can pass through the mesh aperture of the conveyor mesh belt (33) and then be blocked by the screening net (42) or pass through the mesh aperture of the screening net (42); the feeding funnel (2), the conveyor mesh belt (33), the screening net (42), and the loading container (5) are all fixedly connected to the main frame (1) and arranged in sequence from high to low along the same longitudinal axis.

2. The automatic screening device for plastic particles according to claim 1, characterized in that: The screening assembly (4) comprises a screening frame (41); the screening frame (41) is fixedly connected to the main frame (1); a material passage (411) for particles to pass through is provided from the top surface to the bottom surface of the screening frame (41), and the outer wall of the screening net (42) is connected to the inner wall of the material passage (411).

3. The automatic screening device for plastic particles according to claim 2, characterized in that: The screening net (42) is detachably connected to the screening frame (41); an outer wall of the screening frame (41) is connected to the material transfer channel (411) through a connecting port (412); the screening net (42) passes through the connecting port (412) to enter or exit the material transfer channel (411).

4. The automatic screening device for plastic particles according to claim 2, characterized in that: The inner side wall of the screening frame (41) is provided with a support platform (413), and the support platform (413) is used to be connected to the outer periphery of the screening net (42).

5. The automatic screening device for plastic particles according to any one of claims 1 to 4, characterized in that: The conveyor mesh belt (33) forms a containing frame (331) along its rotation path, and the screening component (4) and the loading container (5) are both placed in the containing frame (331); the screening component (4) is arranged on the top of the containing frame (331).

6. The automatic screening device for plastic particles according to claim 5, characterized in that: A loading bracket (51) for supporting the loading container (5) is provided in the accommodating frame (331); a limiting member (511) is protrudingly provided on the loading bracket (51), and the limiting member (511) is used to limit the position of the loading container (5) on the loading bracket (51).

7. The automatic screening device for plastic particles according to any one of claims 1 to 4, characterized in that: A depth measuring probe (52) is provided at the container mouth of the loading container (5), and the depth measuring probe (52) transmits signals to a sound alarm; the depth measuring probe (52) is used to make the sound alarm emit an alarm sound when measuring whether the loading container (5) is fully loaded.

8. The automatic screening device for plastic particles according to any one of claims 1 to 4, characterized in that: The top surface of the conveyor mesh belt (33) is provided with a feed end (332) and a discharge end (333); the feed hopper (2) is arranged above the feed end (332), and the conveyor mesh belt (33) can transport the plastic particles from the feed end (332) to the discharge end (333); the bottom of the feed hopper (2) is provided with an opening (21) on one side facing the discharge end (333).

9. The automatic screening device for plastic particles according to claim 8, characterized in that: Baffles (334) are provided on both the left and right sides of the discharge end (333); the two baffles (334) are respectively connected to the left and right sides of the opening (21).

10. The automatic screening device for plastic particles according to claim 8, characterized in that: The vibration motor (34) is arranged at the feeding end (332), and the vibration amplitude of the conveyor mesh belt (33) gradually weakens from the feeding end (332) to the discharging end (333).

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