Screening equipment for engineering plastics

Abstract

The screening equipment for the engineering plastics comprises a screening shell and further comprises a feeding mechanism, a discharging mechanism, a screening plate, a linkage mechanism and a dust collecting mechanism, the discharging mechanism is fixedly connected to one end of the screening shell, and the feeding mechanism is fixedly connected to the upper wall of the end, away from a discharging barrel, of the screening shell; the screening plate is fixedly connected to the middle in the screening shell, the linkage mechanism is arranged on the upper portion of the screening shell and connected between the feeding mechanism and the discharging mechanism, and the dust collecting mechanism is arranged at the bottom of the screening shell. The utility model belongs to the technical field of engineering plastic screening, and particularly relates to screening equipment for engineering plastics, which is used for uniformly screening granular engineering plastics, avoiding screening and stacking of the engineering plastics, keeping uniformity and consistency of feeding and discharging of the engineering plastics and accelerating screening of the engineering plastics.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering plastic screening, and particularly relates to a screening device for engineering plastics. Background Art

[0002] Granular engineering plastics are one of the most common forms. During the mechanical crushing and screening process of engineering plastic particles, dust is generated, causing dust or impurities to be mixed among the plastic particles, making the raw materials impure and the production environment unclean.

[0003] The existing engineering plastic screening devices generally have poor conveying uniformity of plastic particles, unbalanced feeding and discharging ratios, and plastic particles are prone to accumulate on the screen during screening, resulting in low screening efficiency. At the same time, the dust generated during the screening of plastic particles scatters into the air, affecting the processing environment. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to avoid the accumulation of engineering plastic screening, maintain the uniformity and consistency of engineering plastics in feeding and discharging, and accelerate the screening of engineering plastics.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is as follows: A screening device for engineering plastics includes a screening housing, and also includes a feeding mechanism, a discharging mechanism, a sieve plate, a linkage mechanism and a dust collection mechanism. The discharging mechanism is fixedly connected to one end of the screening housing, the feeding mechanism is fixedly connected to the upper wall of the screening housing away from the discharging cylinder, the sieve plate is fixedly connected to the middle inside the screening housing, the linkage mechanism is arranged on the upper part of the screening housing and is connected between the feeding mechanism and the discharging mechanism, and the dust collection mechanism is arranged at the bottom of the screening housing.

[0006] Further, the sieve plate is inclined, the sieve plate divides the screening housing into a filter material chamber and a dust collection chamber, the middle part of the sieve plate is arranged in a mesh structure, and a vibration motor is installed on the bottom wall of the sieve plate.

[0007] Further, the feeding mechanism includes a feeding hopper, a first auger and a first support plate. The feeding hopper is fixedly connected to the upper wall of one end of the screening housing and is communicated with the filter material chamber. The feeding hopper is arranged in a flared shape. The first support plate is fixedly connected to the middle of the upper opening of the feeding hopper. One end of the first auger is rotatably connected to the sieve plate, and the other end of the first auger penetrates through the first support plate and extends above the first support plate.

[0008] Further, the discharging mechanism includes a discharging cylinder, a second auger, a second support plate, a vertical plate and a bearing plate. The discharging cylinder is fixedly connected to one end of the screening housing away from the feed hopper. The discharging cylinder is communicated with the screening housing and is vertically distributed with respect to the screening housing. The vertical plate is fixedly connected to the upper end surface of the discharging cylinder and is symmetrically distributed. The bearing plate is fixedly connected to the upper part of the symmetric vertical plates. The second support plate is fixedly connected to the middle of the bottom end of the discharging cylinder. One end of the second auger is rotatably connected to the second support plate, and the other end of the second auger is rotatably connected to the bottom wall of the bearing plate.

[0009] Further, the linkage mechanism includes a first pulley, a second pulley, a belt and a rotating motor. The first pulley is fixedly connected to the upper end of the first auger. The second pulley is fixedly connected to the upper part of the outer side wall of the second auger. The first pulley and the second pulley are arranged at the same height. The belt is wound around the outer walls of the first pulley and the second pulley. The rotating motor is installed on the bearing plate, and the output end of the rotating motor is fixedly connected to the upper end of the second auger.

[0010] Further, the dust collection mechanism includes an air pump and a partition net. The air pump is installed at one end of the screening housing away from the discharging cylinder. The air inlet end of the air pump is communicated with the dust collection chamber. The partition net is arranged in the dust collection chamber near the air inlet end of the air pump and is located between the bottom wall of the screen plate and the inner bottom wall of the screening housing.

[0011] Further, a dust removal port is formed in the bottom wall of the screening housing, and a baffle is movably connected to the bottom of the dust removal port.

[0012] After adopting the above structure, the beneficial effects of the present utility model are as follows: For the uniform screening of granular engineering plastics, the feeding mechanism and the discharging mechanism are synchronously fed through the linkage mechanism, maintaining the uniformity and consistency of the engineering plastics during screening, avoiding the accumulation of engineering plastics during screening, accelerating the screening of engineering plastics, and at the same time using the dust collection mechanism to absorb the dust in the filter chamber during screening and collect it into the dust collection chamber, increasing the air flow inside the screening housing and facilitating cleaning. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0014] Figure 1 It is a schematic diagram of the overall structure of the screening device for engineering plastics proposed by the present utility model;

[0015] Figure 2 It is a schematic diagram of the discharging cylinder structure of the screening device for engineering plastics proposed by the present utility model;

[0016] Figure 3Half-sectional view of the screening device for engineering plastics proposed by the present utility model;

[0017] Figure 4 Schematic diagram of the internal structure of the screening device for engineering plastics proposed by the present utility model.

[0018] In the drawings: 1, screening housing; 2, feeding mechanism; 3, discharging mechanism; 4, sieve plate; 5, linkage mechanism; 6, dust collection mechanism; 7, filter material chamber; 8, dust collection chamber; 9, vibration motor; 10, feeding hopper; 11, auger one; 12, support plate one; 13, discharging cylinder; 14, auger two; 15, support plate two; 16, vertical plate; 17, bearing plate; 18, pulley one; 19, pulley two; 20, belt; 21, rotating motor; 22, air pump; 23, partition net; 24, dust removal port; 25, baffle. Specific embodiments

[0019] As Figures 1-4 shown, the screening device for engineering plastics includes a screening housing 1, and also includes a feeding mechanism 2, a discharging mechanism 3, a sieve plate 4, a linkage mechanism 5 and a dust collection mechanism 6. The discharging mechanism 3 is fixedly connected to one end of the screening housing 1, the feeding mechanism 2 is fixedly connected to the upper wall of the end of the screening housing 1 far from the discharging cylinder 13, the sieve plate 4 is fixedly connected to the middle inside the screening housing 1, the linkage mechanism 5 is arranged above the screening housing 1 and is connected between the feeding mechanism 2 and the discharging mechanism 3, and the dust collection mechanism 6 is arranged at the bottom of the screening housing 1. The engineering plastics are fed into the screening housing 1 through the feeding mechanism 2, fall on the sieve plate 4, and are discharged through the discharging mechanism 3 after passing through the sieve plate 4. At the same time, the linkage mechanism 5 connects the feeding mechanism 2 and the discharging mechanism 3 to keep the feeding and discharging inside the screening housing 1 stable. During screening, the dust collection mechanism 6 is used to recover the dust generated during screening.

[0020] As Figure 3 and Figure 4 shown, in order to increase the screening efficiency of the sieve plate 4, the sieve plate 4 is inclined. The sieve plate 4 divides the screening housing 1 into a filter material chamber 7 and a dust collection chamber 8. The middle of the sieve plate 4 is arranged in a mesh structure, and a vibration motor 9 is installed on the bottom wall of the sieve plate 4. When the engineering plastics fall on the sieve plate 4, they slide from high to low, and are screened when passing through the mesh structure in the middle of the sieve plate 4. At the same time, the vibration motor 9 is used to vibrate to promote the engineering plastics to fall towards the discharging cylinder 13.

[0021] As Figure 3 and Figure 4As shown in the figure, in order to achieve uniform feeding of engineering plastics, the feeding mechanism 2 includes a feeding hopper 10, a first auger 11, and a first support plate 12. The feeding hopper 10 is fixedly connected to the upper wall of one end of the screening housing 1 and is communicated with the filter material chamber 7. The feeding hopper 10 is provided with a flared opening. The first support plate 12 is fixedly connected to the middle of the upper end opening of the feeding hopper 10. One end of the first auger 11 is rotatably connected to the sieve plate 4, and the other end of the first auger 11 passes through the first support plate 12 and extends above the first support plate 12. The engineering plastics are added into the interior of the screening housing 1 through the feeding hopper 10. In order to improve the feeding uniformity, stable feeding and conveying are achieved through the rotation of the first auger 11.

[0022] As Figures 2-4 shown in the figure, in order to achieve uniform discharging of engineering plastics, the discharging mechanism 3 includes a discharging cylinder 13, a second auger 14, a second support plate 15, a vertical plate 16, and a bearing plate 17. The discharging cylinder 13 is fixedly connected to one end of the screening housing 1 away from the feeding hopper 10. The discharging cylinder 13 is communicated with the screening housing 1 and is vertically distributed with respect to the screening housing 1. The vertical plate 16 is fixedly connected to the upper end surface of the discharging cylinder 13 and is symmetrically distributed. The bearing plate 17 is fixedly connected to the upper part of the symmetric vertical plates 16. The second support plate 15 is fixedly connected to the middle of the bottom end of the discharging cylinder 13. One end of the second auger 14 is rotatably connected to the second support plate 15, and the other end of the second auger 14 is rotatably connected to the bottom wall of the bearing plate 17. When the engineering plastics are screened by the sieve plate 4, the rotating second auger 14 pushes the engineering plastics on the sieve plate 4 out of the discharging cylinder 13.

[0023] As Figure 1 、 Figure 3 and Figure 4 shown in the figure, in order to maintain the uniformity and consistency of the feeding and discharging inside the screening housing 1 and make the plastic particles evenly fall on the sieve plate 4, the linkage mechanism 5 includes a first pulley 18, a second pulley 19, a belt 20, and a rotating motor 21. The first pulley 18 is fixedly connected to the upper end of the first auger 11. The second pulley 19 is fixedly connected to the upper part of the outer wall of the second auger 14. The first pulley 18 and the second pulley 19 are arranged at the same height. The belt 20 is wound around the outer walls of the first pulley 18 and the second pulley 19. The rotating motor 21 is installed on the bearing plate 17, and the output end of the rotating motor 21 is fixedly connected to the upper end of the second auger 14. Driving the rotating motor 21 to rotate drives the second pulley 19 and the second auger 14 to rotate. At the same time, the belt 20 is used to drive the first pulley 18 to rotate synchronously, so that the first auger 11 and the second auger 14 rotate simultaneously. The first auger 11 pushes the engineering plastics in the feeding hopper 10 to be evenly added into the screening housing 1, and the second auger 14 pushes the screened engineering plastics out of the material, realizing stable feeding and discharging of the engineering plastics.

[0024] As Figures 2-4As shown in the figure, the dust collection mechanism 6 includes an air pump 22 and a partition net 23. The air pump 22 is installed at one end of the screening housing 1 away from the discharge cylinder 13. The intake end of the air pump 22 is communicated with the dust collection chamber 8. The partition net 23 is arranged in the dust collection chamber 8 near the intake end of the air pump 22 and is located between the bottom wall of the sieve plate 4 and the inner bottom wall of the screening housing 1. A dust removal port 24 is opened on the bottom wall of the screening housing 1. A baffle 25 is movably connected to the bottom of the dust removal port 24. When the sieve plate 4 vibrates to screen engineering plastics, dust is generated in the filter material chamber 7. The air pump 22 is driven to extract the air in the dust collection chamber 8 and discharge it from the screening housing 1, promoting the internal flow of the screening housing 1. At the same time, the partition net 23 screens the air at the air inlet end of the air pump 22 to prevent the air pump 22 from inhaling dust and storing the dust in the dust collection chamber 8. The baffle 25 is connected to the dust removal port 24 at the bottom of the screening housing 1 by bolts, which is convenient for cleaning the dust collection chamber 8 after disassembly.

[0025] During specific use, the operator pours the engineering plastics into the feed hopper 10, drives the rotary motor 21 to rotate, drives the second pulley 19 and the second auger 14 to rotate, and at the same time drives the first pulley 18 to rotate synchronously by using the belt 20. The first auger 11 pushes the engineering plastics in the feed hopper 10 into the screening housing 1. The engineering plastics fall on the sieve plate 4 and slide down to the end of the discharge cylinder 13 from high to low. When passing through the mesh structure in the middle of the sieve plate 4, the engineering plastics are screened. At the same time, the vibration motor 9 is used to vibrate to promote the engineering plastics to fall towards the end of the discharge cylinder 13.

[0026] The first auger 11 and the second auger 14 rotate synchronously. After the engineering plastics pass through the sieve plate 4 for filtration, they move towards the end close to the second auger 14, and the screened engineering plastics are discharged by the second auger 14, realizing the stable feeding and discharging of the engineering plastics.

[0027] During screening, the air pump 22 is driven to extract the air in the dust collection chamber 8 and discharge it from the screening housing 1, promoting the internal flow of the screening housing 1. The partition net 23 screens the air at the air inlet end of the air pump 22 to prevent the air pump 22 from inhaling dust and storing the dust in the dust collection chamber 8. The baffle 25 is connected to the dust removal port 24 at the bottom of the screening housing 1 by bolts, which is convenient for cleaning the dust collection chamber 8 after disassembly.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. In short, if those of ordinary skill in the art are inspired by it and design similar structural methods and embodiments without creative efforts without departing from the purpose of the creation of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. Screening equipment for engineering plastics, including a screening housing, characterized in that: It also includes a feeding mechanism, a discharging mechanism, a sieve plate, a linkage mechanism and a dust collection mechanism. The discharging mechanism is fixedly connected to one end of the screening housing. The feeding mechanism is fixedly connected to the upper wall of the screening housing at the end far from the discharging cylinder. The sieve plate is fixedly connected to the middle inside the screening housing. The linkage mechanism is arranged at the upper part of the screening housing and is connected between the feeding mechanism and the discharging mechanism. The dust collection mechanism is arranged at the bottom of the screening housing.

2. The screening device for engineering plastics according to claim 1, characterized in that: The sieve plate is inclined. The sieve plate divides the screening housing into a filter material chamber and a dust collection chamber. The middle part of the sieve plate is arranged in a mesh structure. A vibration motor is installed on the bottom wall of the sieve plate.

3. The screening device for engineering plastics according to claim 1, characterized in that: The feeding mechanism includes a feeding hopper, a first auger and a first support plate. The feeding hopper is fixedly connected to the upper wall of one end of the screening housing and is communicated with the filter material chamber. The feeding hopper is arranged in a flared shape. The first support plate is fixedly connected to the middle of the upper opening of the feeding hopper. One end of the first auger is rotatably connected to the sieve plate, and the other end of the auger penetrates through the first support plate and extends above the first support plate.

4. The screening device for engineering plastics according to claim 1, wherein: The discharging mechanism includes a discharging cylinder, a second auger, a second support plate, a vertical plate and a bearing plate. The discharging cylinder is fixedly connected to the end of the screening housing far from the feeding hopper. The discharging cylinder is communicated with the screening housing and is vertically distributed with the screening housing. The vertical plate is fixedly connected to the upper end surface of the discharging cylinder. The vertical plates are symmetrically distributed. The bearing plate is fixedly connected to the upper part of the symmetric vertical plates. The second support plate is fixedly connected to the middle of the bottom end of the discharging cylinder. One end of the second auger is rotatably connected to the second support plate, and the other end of the second auger is rotatably connected to the bottom wall of the bearing plate.

5. The screening device for engineering plastics according to claim 1, characterized in that: The linkage mechanism includes a first pulley, a second pulley, a belt and a rotating motor. The first pulley is fixedly connected to the upper end of the first auger. The second pulley is fixedly connected to the upper part of the outer side wall of the second auger. The first pulley and the second pulley are arranged at the same height. The belt is wound around the outer walls of the first pulley and the second pulley. The rotating motor is installed on the bearing plate, and the output end of the rotating motor is fixedly connected to the upper end of the second auger.

6. The screening device for engineering plastics according to claim 2, characterized in that: The dust collection mechanism includes an air pump and a partition net. The air pump is installed at the end of the screening housing far from the discharging cylinder. The air inlet end of the air pump is communicated with the dust collection chamber. The partition net is arranged in the dust collection chamber near the air inlet end of the air pump and is located between the bottom wall of the sieve plate and the inner bottom wall of the screening housing.

7. The screening device for engineering plastics according to claim 1, characterized in that: A dust removal port is opened on the bottom wall of the screening housing, and a baffle is movably connected to the bottom of the dust removal port.

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