Environment-friendly material separating screen for polyester threads

Abstract

The utility model discloses an environment-friendly material separating screen for polyester threads, which comprises a double-layer rack, a double-roller crusher mounted at the top end of the double-layer rack, a speed reducing motor arranged on one side of the double-layer rack and used for driving the double-roller crusher to work, and a right-angle frame fixed on one side of the surface of the double-layer rack, a cam type vibrating screen assembly is installed at the top end of the right-angle frame, a screen frame is installed at the movable end of the cam type vibrating screen assembly, and the screen frame is located below a discharging opening of the double-roller crusher. According to the utility model, the speed reducing motor drives the double-roller crusher to crush polyester materials, the crushed polyester materials are discharged and retained on the screen frame, and at the moment, the double-roller crusher transmits the rotary power of the speed reducing motor to the cam type vibrating screen assembly through the belt wheel transmission structure; and therefore, the screen frame realizes the action similar to that of a hand-operated vibrating screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic recycling equipment, and specifically to an environment-friendly material distributing sieve for polyester threads. BACKGROUND

[0002] Polyester fiber recycling is a production process that turns high polymer resins and various additives and aids into granular plastics through metering, mixing, plasticizing, and pelletizing. The preparation work before batching includes resin screening and plasticizer filtering. By removing impurities such as dust and metal particles, the material distributing sieve can effectively prevent these unqualified materials from damaging subsequent processing equipment, thus ensuring the smooth progress of the production process. In addition, the material distributing sieve can also classify and screen particles according to their size, effectively separating polyester particles of different sizes, which is crucial for selecting appropriate particles for subsequent processing. The structure of the material distributing sieve usually consists of a sieve frame, a screen mesh, a vibrating device, an inlet, and an outlet. The screen mesh is the core component responsible for screening materials. The vibrating device generates periodic vibrations, causing the materials to move on the screen mesh, thus achieving effective screening. The materials are evenly added to the surface of the screen mesh through the inlet. Under the action of vibration, particles are layered according to size and shape. Smaller particles fall into the collection tank through the screen mesh pores, while larger particles are discharged from the other side of the outlet.

[0003] As disclosed in the authorized announcement No. CN219816567U, an environment-friendly material distributing sieve for polyester threads, the sieve tank top cover top end is installed with a screening motor, the screening motor transmission end is connected with a rotating rod, the rotating rod outside is sleeved with three screening brushes and screening scrapers, the rotating rod outside is sleeved with a primary screening disc at the bottom end of the screening brush and the screening scraper, the primary screening disc bottom end is sleeved with a secondary screening disc, the secondary screening disc bottom end is sleeved with a fine material discharge disc. The primary screening disc can filter out the internal impurities and fine polyester debris mixed in the polyester threads or polyester clothing, ensuring the cleanliness of the debris without the need for further filtering and cleaning. However, the above technical solution has the following problems in use. The cooperation of the screening brush and the screening scraper causes the materials larger than the sieve disc aperture to be retained. However, different types of polyester particles differ in physical properties, including particle shape, density, and surface characteristics. These properties affect the flowability of materials on the screen mesh, causing certain particles, especially larger particles, to be retained on the screen mesh surface for a long time due to gravity and friction. At this time, the screening brush moves at a low frequency in the rotating state, and the movement speed of the materials on the screen mesh is also relatively slow, thus affecting the screening efficiency. SUMMARY

[0004] The utility model discloses a purpose lies in providing a kind of for polyester thread's environmental protection type material screen, and the double-roller crusher of speed reducer motor drive completes the pulverization work of polyester material, and the polyester material of pulverization completion is discharged and stays on screen frame, at this moment, double-roller crusher passes through pulley transmission structure and is transmitted to cam type vibrating screen assembly to the rotary power of speed reducer motor, to make screen frame realize the action similar to hand-operated vibrating screen, and the material of screening down is discharged through conical mouth material guiding box, and the material of large specification particle size stays on screen frame, to solve the problem presented in above background art.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: an environmental protection type material screen for polyester thread, including double-layer frame, double-roller crusher installed at the top of double-layer frame, the speed reducer motor for driving double-roller crusher work is arranged at one side of double-layer frame and the right angle frame fixed on one side of the surface of double-layer frame, the top of right angle frame is installed with cam type vibrating screen assembly, and the movable end of cam type vibrating screen assembly is installed with screen frame, and screen frame is located below the discharge port of double-roller crusher, the conical mouth material guiding box is installed in the inside of double-layer frame on the side of screen frame, and the conical mouth material guiding box is used to discharge the material passing through screen frame downwards, pulley transmission structure for keeping power connection is installed between cam type vibrating screen assembly and double-roller crusher.

[0006] Preferably, the bottom of the double-roller crusher is installed with guide plate on both sides, and a gap part for the polyester thread material after pulverization is arranged between the two guide plates, and the gap part is located above the screen frame.

[0007] Preferably, the edge position of the top of the screen frame is integrally formed with an upwardly extending flange.

[0008] Preferably, the cam type vibrating screen assembly comprises a disc cam fixed at one end of a transmission shaft, a vertical seat fixed at both sides of the top of the right angle frame, and a H-shaped horizontal frame hinged at the top of the vertical seat, a pin shaft rotatably installed at one end of the H-shaped horizontal frame close to the right angle frame, and the pin shaft extends into a groove of the disc cam at one end, and the screen frame is bolted and installed at the top of the two H-shaped horizontal frames.

[0009] Preferably, a connecting beam is fixed between the two adjacent H-shaped horizontal frames, and the top of the connecting beam is in contact with the bottom of the screen frame.

[0010] Preferably, the pulley transmission structure comprises a driven pulley installed at one end of the surface of the transmission shaft, a driving pulley fixed at one end of one of the pulverizing rollers of the double-roller crusher, and a belt installed between the driving pulley and the driven pulley.

[0011] Compared with the prior art, the polyethylene terephthalate thread environment-friendly material screening device has the advantages that: the environment-friendly material screening device for polyethylene terephthalate thread is provided with a speed reducer, a double-roller crusher, a belt wheel transmission structure, a screen frame and a cam type vibrating screen assembly, and the speed reducer drives the double-roller crusher to complete the crushing of the polyethylene terephthalate material, the crushed polyethylene terephthalate material is discharged and retained on the screen frame, at this time, the double-roller crusher transmits the rotary power of the speed reducer to the cam type vibrating screen assembly through the belt wheel transmission structure, so that the screen frame realizes the action similar to hand shaking, and the screened material is discharged through the tapered guide box; the use of the speed reducer makes the operation of the double-roller crusher more stable and provides more stable power output, the speed reducer transmits power to the cam type vibrating screen assembly through the belt wheel transmission structure, so that the screen frame performs the action similar to hand shaking, the action of the cam type vibrating screen can make the screen frame vibrate in different directions, so that the material is uniformly distributed on the screen frame, the accumulation of the material is prevented, and it is ensured that each particle has the opportunity to pass through the screen mesh, thereby the uniformity and efficiency of screening are improved; secondly, the synchronous and accurate control of the vibrating screen frequency and the crushing frequency can be realized by controlling the rotating speed of the speed reducer, so that the screening parameters are adjusted according to the polyethylene terephthalate material, the best screening effect is achieved, and finally the action of the hand shaking can effectively clean the retained material on the surface of the screen frame, reduce the blockage of the screen mesh, ensure the permeability of the screen frame, reduce the downtime caused by the blockage, and improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view structural schematic diagram of the utility model;

[0013] Figure 2 It is a three-dimensional sectional structure schematic diagram of the utility model;

[0014] Figure 3 It is a three-dimensional structure schematic diagram of the utility model Figure 1 ;

[0015] Figure 4 It is a three-dimensional structure schematic diagram of the utility model Figure 2 ;

[0016] Figure 5 It is a cam type vibrating screen assembly three-dimensional structure schematic diagram of the utility model.

[0017] In the drawing: 1, double-layer rack; 2, double-roller crusher; 201, material guide plate; 3, speed reducer; 4, right-angle frame; 5, tapered guide box; 6, cam type vibrating screen assembly; 601, transmission shaft; 602, vertical seat; 603, H-shaped horizontal frame; 604, disc cam; 605, pin shaft; 606, connecting beam; 7, screen frame; 8, belt wheel transmission structure. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] Please refer to Figures 1-5 The utility model provides an embodiment: a kind of environment-friendly type material screen for polyester thread, including double-layer rack 1, double-layer rack 1 top end installation double-roller crusher 2, double-layer rack 1 one side is provided for driving double-roller crusher 2 work's speed reducer 3 and the straight angle frame 4 of double-layer rack 1 surface one side fixation, the top of straight angle frame 4 is equipped with cam type vibration screen assembly 6, and the movable end of cam type vibration screen assembly 6 is equipped with screen frame 7, screen frame 7 is below the discharge port of double-roller crusher 2, the inside of double-layer rack 1 in screen frame 7 one side is equipped with taper mouth material guide box 5, taper mouth material guide box 5 is used to discharge downwards by screen frame 7 material, cam type vibration screen assembly 6, double-roller crusher 2 between installation is used for keeping power connection's belt wheel transmission structure 8;

[0020] Staff can install motor controller for controlling the work of speed reducer 3 on the outer wall of double-layer rack 1, to control speed reducer 3 work in the direction and speed set, to adjust the screening frequency of screen frame 7 and the speed of double-roller crusher 2 according to actual situation;

[0021] The high-speed rotation of speed reducer 3 is converted into greater torque and provides double-roller crusher 2, and double-roller crusher 2 makes material between rollers receive powerful pressure, to realize quick crushing;

[0022] The both sides of the bottom end of double-roller crusher 2 are equipped with material guide plate 201, and a gap part for the crushed polyester thread material is arranged between the two material guide plates 201, the gap part is located above the screen frame 7, and the edge position of the top end of the screen frame 7 is integrally formed with an upwardly extending flange, the design of the screen frame 7 enables the material to be uniformly distributed during screening, improves the screening efficiency, and ensures that the smaller particles can pass smoothly;

[0023] The cam type vibration screen assembly 6 includes a disc-shaped cam 604 fixed at one end of a transmission shaft 601, a vertical seat 602 fixed at the top of the two sides of the straight angle frame 4, and a H-shaped horizontal frame 603 hinged at the top of the vertical seat 602, a pin shaft 605 rotatably installed at one end of the H-shaped horizontal frame 603 close to the straight angle frame 4, one end of the pin shaft 605 extending into the groove of the disc-shaped cam 604, the screen frame 7 being bolted and installed at the top of the two H-shaped horizontal frames 603, and a connecting beam 606 fixed between the two adjacent H-shaped horizontal frames 603, the top of the connecting beam 606 and the bottom of the screen frame 7 being in contact with each other;

[0024] One of the crushing rollers of the double-roller crusher 2 is driven to rotate by the belt wheel transmission structure 8, the transmission shaft 601 and the disc cam 604, and the rotation of the disc cam 604 is converted into the up-down reciprocating swing action of the H-shaped horizontal frame 603 through the pin shaft 605, that is, the H-shaped horizontal frame 603 drives the connecting beam 606 and the screen frame 7 to swing up and down, so that the materials in the screen frame 7 can be screened, thereby ensuring that the materials are uniformly stressed during screening and improving the screening effect.

[0025] The belt wheel transmission structure 8 includes a driven wheel mounted on one end of the surface of the transmission shaft 601, a driving wheel fixed on one end of one of the crushing rollers of the double-roller crusher 2, and a belt mounted between the driving wheel and the driven wheel. The belt wheel transmission structure 8 can adapt to different working conditions and adjust the transmission ratio in a large range to meet the working requirements of different cam-type screening assemblies 6. The belt wheel transmission structure 8 can also be replaced by a chain wheel transmission structure.

[0026] In use, the polyester thread recycling material to be processed is prepared first to ensure that there are no large foreign matters in the material, then the polyester thread recycling material is poured into the double-roller crusher 2, and the speed reducer 3 is started. At this time, the double-roller crusher 2 uses its strong crushing capacity to preliminarily crush the material into smaller particles. At this time, the staff needs to monitor the crushing process to ensure that the material can smoothly pass through the crusher and timely handle the possible jamming phenomenon. After crushing, the polyester particles are discharged from the discharge port of the double-roller crusher 2 and are retained on the screen frame 7. The double-roller crusher 2 transmits part of the rotary power from the speed reducer 3 to the cam-type screening assembly 6, and the screen frame 7 realizes the action similar to manual screening through the cam-type screening assembly 6. During the screening process, the smaller particles pass through the screen frame 7 and are discharged through the tapered guide box 5, while the larger particles are retained on the screen frame 7. The staff needs to timely collect the materials passing through the tapered guide box 5 and store them in different categories. After screening, the staff needs to clean the screen frame 7 to ensure that there is no residual material to prepare for the next round of screening.

Claims

1. An environmentally friendly material separating screen for polyester yarn, characterized in that: The system includes a double-layer frame (1), a double-roll crusher (2) mounted on the top of the double-layer frame (1), a reduction motor (3) installed on one side of the double-layer frame (1) for driving the double-roll crusher (2), and a right-angle frame (4) fixed on one side of the surface of the double-layer frame (1). A cam-type vibrating screen assembly (6) is mounted on the top of the right-angle frame (4), and a screen frame (7) is mounted on the movable end of the cam-type vibrating screen assembly (6). The screen frame (7) is located below the discharge port of the double-roll crusher (2). A conical guide box (5) is installed inside the double-layer frame (1) on one side of the screen frame (7). The conical guide box (5) is used to discharge the material passing through the screen frame (7) downwards. A belt drive structure (8) for maintaining power connection is installed between the cam-type vibrating screen assembly (6) and the double-roll crusher (2).

2. The environmentally friendly material separating screen for polyester yarn according to claim 1, characterized in that: The double-roll crusher (2) has feeding plates (201) installed on both sides of its bottom end. A gap is provided between the two feeding plates (201) for the crushed polyester yarn material to pass through. The gap is located above the screen frame (7).

3. The environmentally friendly material separating screen for polyester yarn according to claim 2, characterized in that: The top edge of the sieve frame (7) is integrally formed with an upwardly extending retaining edge.

4. The environmentally friendly material separating screen for polyester yarn according to claim 3, characterized in that: The cam-type vibrating screen assembly (6) includes a disc-shaped cam (604) rotatably mounted on a drive shaft (601), a drive shaft (601) fixed at one end, and uprights (602) fixed on both sides of the top of a right-angle frame (4). An H-shaped horizontal frame (603) is hinged to the top of the upright (602). A pin (605) is rotatably mounted on one end of the H-shaped horizontal frame (603) near the right-angle frame (4). One end of the pin (605) extends into the groove of the disc-shaped cam (604). The screen frame (7) is bolted to the top of the two H-shaped horizontal frames (603).

5. The environmentally friendly material separating screen for polyester yarn according to claim 4, characterized in that: A connecting beam (606) is fixed between two adjacent H-shaped horizontal frames (603), and the top end of the connecting beam (606) is in contact with the bottom end of the sieve frame (7).

6. The environmentally friendly material separating screen for polyester yarn according to claim 4, characterized in that: The pulley drive structure (8) includes a driven wheel installed on one end of the surface of the drive shaft (601), a driving wheel fixed to one end of one of the crushing rollers of the double-roll crusher (2), and a belt installed between the driving wheel and the driven wheel.

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