Plastic particle screening machine

Abstract

The utility model relates to the technical field of particle screening, and particularly discloses a plastic particle screening machine which comprises a support and a screening barrel, a motor for driving the screening barrel to rotate is arranged on the support, a collecting box is arranged below the screening barrel, a feeding hopper and a sliding groove which are connected with the support are arranged at the two ends of the screening barrel respectively, and the screening barrel comprises an outer barrel body and an inner barrel body. Guide rings are arranged at the two ends of the inner cylinder, supporting rollers matched with the guide rings are arranged at the upper end of the support, inner screen holes are formed in the side wall of the inner cylinder, the outer cylinder comprises shielding rings arranged on the outer side of the inner cylinder in a sleeving mode, the shielding rings are connected through connecting rods, and the width of the shielding rings is larger than the diameter of the inner screen holes. Outer sieve holes flush with the inner sieve holes are formed in the shielding ring, the diameter of the outer sieve holes is smaller than that of the inner sieve holes, and the inner barrel and the outer barrel are fixed through bolts; switching of screening holes with different diameters can be achieved by sliding the outer cylinder, the screening requirements of different particle sizes are met, the use range of the device is widened, and cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of particle screening, in particular to a plastic particle screening machine. BACKGROUND

[0002] The diameter of plastic particles is usually between 0.1mm and 5mm. This range is determined based on the standards of plastic particle production processes and to meet the production needs of different plastic products. Smaller particle diameters help improve the fineness and smoothness of plastic products, while larger particles may be used for products that require higher strength and durability.

[0003] Finished plastic particles need to be screened to remove particles that do not meet the particle size requirements. Patent CN214812415U discloses an engineering plastic particle screening machine that screens plastic particles by a screening barrel 3. However, the screening barrel of this device can only screen one size of particle diameter, and different diameter particle screening requires different equipment, increasing the screening cost. SUMMARY

[0004] The utility model provides a plastic particle screening machine to solve the above problems existing in the prior art. The sliding outer cylinder can switch different diameter screening holes, meet the screening requirements of different particle sizes, increase the use range of the device, save the cost, and is simple and fast to use.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A plastic particle screening machine includes a support and a screening cylinder. The screening cylinder is located above the support. The support is provided with a motor that drives the screening cylinder to rotate. A collection box is provided below the screening cylinder. The screening cylinder is inclined. The two ends of the screening cylinder are respectively provided with a feed hopper and a chute connected with the support. The screening cylinder includes an outer cylinder and an inner cylinder. The two ends of the inner cylinder are provided with guide rings. The upper end of the support is provided with support rollers matched with the guide rings. An inner screen hole is provided on the sidewall of the inner cylinder. The outer cylinder includes a shielding ring sleeved on the outer side of the inner cylinder. The shielding rings are connected by connecting rods. The distance between the shielding rings is greater than the diameter of the inner screen hole. The width of the shielding ring is greater than the diameter of the inner screen hole. An outer screen hole with a diameter equal to the inner screen hole is provided on the shielding ring. The diameter of the outer screen hole is smaller than the inner screen hole. The inner cylinder and the outer cylinder are fixed by bolts.

[0007] Preferably, the output shaft of the motor is provided with a drive roller matched with the guide ring.

[0008] Preferably, the upper end of the support is connected with baffles located on both sides of the screening cylinder.

[0009] Preferably, the outer cylinder is provided with guide plates at both ends, the guide plates are provided with limiting plates connected with the inner cylinder at both sides, the end of the guide plate is provided with a top block, one side of the top block is provided with a limiting block connected with the side wall of the inner cylinder, and the limiting block is provided with a bolt for fixing the top block.

[0010] Preferably, the outlet of the feeding hopper is located in the inner cylinder.

[0011] Preferably, the inner wall of the inner cylinder is provided with a scraper.

[0012] Preferably, the distance between the bottoms of the two baffles is smaller than the width of the collecting box.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model discloses a sliding outer cylinder can realize the switching of different diameter screening holes, meets the screening requirement of different particle sizes, increases the device use range, saves the cost, and is simple, fast to use.

[0015] 2. The utility model discloses that the scraper is arranged on the inner wall of the inner cylinder, can turn over the plastic particles, and improves the screening effect.

[0016] 3. The utility model discloses that the bolt, the top block and the limiting block and the limiting plate cooperate, realize the sliding adjustment and position fixing of the outer cylinder, and the adjustment is simple and fast. DRAWINGS

[0017] Figure 1 It is the structure diagram of the utility model Figure 1 ;

[0018] Figure 2 It is the structure diagram of the utility model Figure 2 ;

[0019] Figure 3 It is the structure diagram of the utility model

[0020] Figure 4 It is the structure diagram of the utility model

[0021] Figure 5 It is the structure diagram of the utility model

[0022] In the drawing: 1-screening cylinder;101-inner cylinder;102-outer cylinder;103-guide ring;104-limiting block;105-limiting plate;106-inner screen hole;107-scraper;108-shielding ring;109-outer screen hole;110-guide plate;111-top block;112-connecting rod;2-motor;3-bracket;301-baffle;302-sliding groove;303-supporting roller;4-collecting box;5-bolt;6-feeding hopper. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] As shown in Figure 1 , Figure 2 , a plastic particle screening machine comprises a support 3 and a screening cylinder 1, the screening cylinder 1 is located above the support 3, the screening cylinder 1 is arranged obliquely, the support 3 is provided with a motor 2 for driving the screening cylinder 1 to rotate, a collecting box 4 is arranged below the screening cylinder 1, both ends of the screening cylinder 1 are respectively provided with a feeding hopper 6 and a chute 302 connected with the support 3, and the outlet of the feeding hopper 6 is located in the inner cylinder 101.

[0025] As shown in Figure 3 , the screening cylinder 1 comprises an outer cylinder 102 and an inner cylinder 101, as shown in Figure 4 , the two ends of the inner cylinder 101 are provided with guide rings 103, the guide rings 103 are provided with guide grooves, the upper end of the support 3 is provided with support rollers 303 matched with the guide grooves, and the output shaft of the motor 2 is provided with driving rollers matched with the guide grooves, so that the inner cylinder 101 can be driven to rotate through the driving rollers.

[0026] The side wall of the inner cylinder 101 is provided with inner screen holes 106, as shown in Figure 5 , the outer cylinder 102 comprises shielding rings 108 sleeved outside the inner cylinder 101, the shielding rings 108 are connected through connecting rods 112, the spacing between the shielding rings 108 is greater than the diameter of the inner screen holes 106, the spacing between the inner screen holes 106 in the radial direction is greater than the width of the shielding rings 108, the width of the shielding rings 108 is greater than the diameter of the inner screen holes 106, the shielding rings 108 are provided with outer screen holes 109 flush with the inner screen holes 106, and the diameter of the outer screen holes 109 is smaller than the diameter of the inner screen holes 106.

[0027] The inner cylinder 101 is slid, so that the shielding rings 108 shield the inner screen holes 106 and the screening is carried out through the outer screen holes 109; the shielding rings 108 are moved away from the outside of the inner screen holes 106 and located between two inner screen holes 106, so that the screening is carried out through the inner screen holes 106, and the inner cylinder 101 and the outer cylinder 102 are fixed through bolts 5.

[0028] In order to ensure that the screened plastic particles fall into the collecting box 4, baffles 301 located on both sides of the screening cylinder 1 are connected to the upper end of the support 3, and the spacing between the bottoms of the two baffles 301 is smaller than the width of the collecting box 4.

[0029] Multiple guide plates 110 are provided at both ends of the outer cylinder 102. Limiting plates 105 connected to the inner cylinder 101 are provided on both sides of the guide plates 110 to ensure that the inner cylinder 101 can only slide horizontally. A top block 111 is provided at the end of the guide plate 110. A limiting block 104 connected to the side wall of the inner cylinder 101 is provided on one side of the top block 111. A bolt 5 for fixing the top block 111 is provided on the limiting block 104. The outer cylinder 102 can be moved by the bolt 5, so that the top block 111 at the other end of the outer cylinder 102 hits the limiting block 104, thereby realizing the movement and fixation of the outer cylinder 102.

[0030] When the outer cylinder 102 is moved to one end, it is only necessary to install bolts 5 on the limiting block 104 at the other end. The outer cylinder 102 can be fixed by pressing it against the bolts 5.

[0031] The inner wall of the inner cylinder 101 is equipped with a lifting plate 107, which can agitate the plastic particles inside and improve the thoroughness of screening.

[0032] In use, first select whether to use the inner screen hole 106 or the outer screen hole 109 according to the screening requirements. Slide the outer cylinder 102 and fix it with bolts 5. Then start the motor 2 to drive the screening cylinder 1 to rotate. Add the plastic particles to be screened into the inner cylinder 101 through the feed hopper 6. While the plastic particles move to the other end of the screening cylinder 1, plastic particles with a diameter smaller than the inner screen hole 106 (or possibly the outer screen hole 109 depending on the application) fall into the collection box 4, while plastic particles with a larger diameter are discharged from the end of the inner cylinder 101.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A plastic granule screening machine, comprising a support frame and a screening cylinder, the screening cylinder being located above the support frame, a motor for driving the screening cylinder to rotate being mounted on the support frame, and a collection box being located below the screening cylinder, characterized in that: The screening cylinder is arranged obliquely, and a feeding hopper and a chute are arranged at two ends of the screening cylinder respectively and connected with the support, the screening cylinder comprises an outer cylinder and an inner cylinder, the two ends of the inner cylinder are provided with guide rings, the upper end of the support is provided with support rollers matched with the guide rings, the side wall of the inner cylinder is provided with inner screen holes, the outer cylinder comprises shielding rings sleeved outside the inner cylinder, the shielding rings are connected through connecting rods, the spacing between the shielding rings is greater than the diameter of the inner screen holes, the width of the shielding rings is greater than the diameter of the inner screen holes, the shielding rings are provided with outer screen holes flush with the inner screen holes, the diameter of the outer screen holes is smaller than that of the inner screen holes, and the inner cylinder and the outer cylinder are fixed through bolts.

2. A plastic pellet screener as claimed in claim 1, wherein: The output shaft of the motor is provided with driving rollers matched with the guide rings.

3. A machine for sorting plastic particles as claimed in claim 1, wherein: The upper end of the support is connected with baffles located on both sides of the screening cylinder.

4. A machine for sorting plastic particles as claimed in claim 1, wherein: The two ends of the outer cylinder are provided with guide plates, the two sides of the guide plates are provided with limiting plates connected with the inner cylinder, the end of the guide plate is provided with a top block, one side of the top block is provided with a limiting block connected with the side wall of the inner cylinder, and the limiting block is provided with a bolt for fixing the top block.

5. A plastic pellet screener as claimed in claim 1, wherein: The outlet of the feeding hopper is located in the inner cylinder.

6. A plastic pellet screener as claimed in claim 1, wherein: The inner wall of the inner cylinder is provided with a scraper.

7. A machine for sorting plastic particles as claimed in claim 3 wherein: The spacing between the bottoms of the two baffles is smaller than the width of the collecting box.

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