Pelletizing and conveying device of polyamide production system
By introducing screening and cleaning units into the polyamide production system, the problem of easy clogging of the sieve holes was solved, realizing automatic screening and unclogging, improving screening efficiency and equipment maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN PLASTIC SOURCE TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-15
AI Technical Summary
The sieve holes of the grading and discharge mechanism in existing polyamide production systems are prone to clogging, resulting in low screening efficiency and difficult unclogging operations.
The design includes a screening unit and a cleaning unit. The screening unit achieves automatic screening through multiple layers of screens and agitators, while the cleaning unit achieves automatic unblocking through cleaning wires and fixing screws.
It achieves simple screening operation, convenient collection, flexible unblocking operation, and simple maintenance, thus improving the classification progress of polyamide particles.
Smart Images
Figure CN224240100U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyamide production technology, and in particular to a granulation and conveying device for a polyamide production system. Background Technology
[0002] Polyamide, commonly known as nylon, is a general term for polymers whose main molecular chain repeating units contain amide groups. Polyamide can be obtained by ring-opening polymerization of amines or by condensation polymerization of diamines and diacids. In the production and processing of polyamide, a corresponding grading and discharge mechanism is required to classify and screen the polyamide particles. Although the existing grading and discharge mechanism can classify and screen polyamide particles, the sieve holes of the screening components inside the mechanism are very easily blocked by polyamide particles during use. At this time, in order for the grading and discharge mechanism to continue to classify and screen the polyamide particles, it is necessary to manually clean the processing components inside the grading and discharge mechanism. This process greatly reduces the grading progress of polyamide particles and results in poor performance.
[0003] Publication number CN215030942U discloses a granulation conveying device for a polyamide production system, including a chassis. A drive motor is fixedly connected to the left side of the chassis, and a spiral conveying roller is fixedly connected to the output shaft of the drive motor. A conveying box is fixedly connected to the bottom of the chassis, and a rotary motor is fixedly connected to the back of the conveying box. A drive gear is fixedly connected to the output shaft of the rotary motor, and a chain meshes with the surface of the drive gear. This invention utilizes the cooperation of a rotary motor, drive gear, chain, driven gear, push rod, screening plate, stepper motor, drive block, and return spring. The output shaft of the rotary motor drives the push rod to move through the drive gear, chain, and driven gear, pushing the material to the right. The output shaft of the stepper motor drives the screening plate to oscillate back and forth through the drive block, improving screening efficiency and thus improving the screening effect, solving the problem of poor screening effect in existing devices.
[0004] While the above-mentioned solutions improve the screening effect, the screening operation requires a large number of transmission components, making it extremely complex, and the unblocking operation is difficult. Therefore, we propose a granulation conveying device for a polyamide production system. Utility Model Content
[0005] The main purpose of this invention is to provide a granulation and conveying device for a polyamide production system. By setting up a screening unit and a cleaning unit, it solves the problems of the screening operation requiring a large number of transmission components, which is extremely complicated, and the cleaning operation is difficult.
[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions: A granulation conveying device for a polyamide production system, comprising a bottom plate, a conveying pipe installed on the bottom plate through a first bracket, a screw conveyor installed on the conveying pipe, and a feeding pipe, further comprising: a screening unit and a cleaning unit provided on the bottom plate;
[0007] The screening unit includes a sieve plate, an inclined discharge box, an arc-shaped baffle, a rotating motor, a rotating shaft, and a disturbing plate. The three sieve plates are arranged in parallel from top to bottom and installed on the top surface of the bottom plate, and the diameters of the three groups of sieve holes on the bottom surfaces of the three sieve plates gradually increase from bottom to top. The three inclined discharge boxes are respectively fixedly arranged on the outer circumferential surfaces of the bottoms of the three sieve plates. The three arc-shaped baffles are respectively movably arranged on the top surfaces of the three sieve plates. The rotating motor is installed on the top surface of the uppermost sieve plate. The rotating shaft is installed at the output end of the rotating motor and movably penetrates through the centers of the bottom surfaces of the three sieve plates. The three disturbing plates are all fixedly arranged on the outer circumferential surface of the rotating shaft and are respectively located within the three sieve plates;
[0008] The cleaning unit includes an L-shaped support arm, a fixing screw, and cleaning wires. Three rectangular grooves are equidistantly formed on the outer circumferential surface of the rotating shaft, and the three rectangular grooves are respectively located below the three sieve plates. The L-shaped support arm is movably arranged on the rectangular groove, and a limiting hole is formed on the concave surface on its side. The fixing screw is threadedly connected to the outer circumferential surface of the rotating shaft and movably penetrates through the limiting hole. The cleaning wires are laid on the top surface of the L-shaped support arm and extend into the sieve holes.
[0009] Preferably, the disturbing plate is arranged parallel to the rotating shaft.
[0010] Preferably, the L-shaped support arm, the fixing screw, and the cleaning wires are arranged in one-to-one correspondence with the rectangular groove.
[0011] Preferably, the fixing screw is arranged perpendicular to the rotating shaft.
[0012] Preferably, the first bracket is in an inverted "U" shape.
[0013] Preferably, the discharge end of the conveying pipe is located above the uppermost sieve plate.
[0014] Compared with the prior art, the granulation conveying device of the present utility model for a polyamide production system has the following beneficial effects:
[0015] 1. In this utility model, by setting up a screening unit, three screen discs arranged in parallel from top to bottom and installed on the top surface of the base plate can sequentially screen polyamide particles of different sizes through the arrangement of three sets of screen holes on their bottom surfaces with the diameter gradually increasing from bottom to top. The rotating motor installed on the top surface of the uppermost screen disc can drive the rotating shaft to rotate on the three screen discs. Three disturbance plates fixed on the outer circumference of the rotating shaft and located in the three screen discs can simultaneously disturb the polyamide particles in the three screen discs. After screening, the arc-shaped baffle is removed, and the three types of polyamide particles remaining in the three screen discs can be separated and discharged through three inclined discharge boxes. The equipment has a simple screening operation structure and is convenient for collection.
[0016] 2. In this utility model, by setting a cleaning unit, the L-shaped support arm can be placed on the rectangular groove opened on the outer circumference of the rotating shaft. The fixing screw can pass through the limiting hole on the side concave surface of the L-shaped support arm and be rotated and assembled onto the outer circumference of the rotating shaft. After the L-shaped support arm is fixed, it can rotate with the rotating shaft. The cleaning steel wire laid on the top surface of the L-shaped support arm can disturb the cleaning screen holes to avoid clogging by polyamide particles. The equipment is flexible in cleaning operation and easy to maintain and replace. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of the granulation and conveying device of a polyamide production system according to the present invention;
[0019] Figure 2 This is a top view of the granulation and conveying device of a polyamide production system according to the present invention.
[0020] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0021] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB;
[0022] Figure 5 This is a front view structural diagram of the granulation and conveying device of a polyamide production system according to the present invention.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Base plate;
[0025] 2. Delivery pipe;
[0026] 3. Screw conveyor;
[0027] 4. Feeding pipe;
[0028] 5. Screening unit; 501. Screening tray; 502. Inclined discharge box; 503. Arc-shaped baffle; 504. Rotary motor; 505. Rotating shaft; 506. Disturbance plate;
[0029] 6. Cleaning unit; 601. L-shaped support arm; 602. Fixing screw; 603. Cleaning wire. Detailed Implementation
[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0033] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, a granulation conveying device for a polyamide production system includes a base plate 1, a conveying pipe 2 mounted on the base plate 1 via a first support, a screw conveyor 3 mounted on the conveying pipe 2, and a feeding pipe 4. It also includes a screening unit 5 and a cleaning unit 6 disposed on the base plate 1.
[0034] The screening unit 5 includes a screening tray 501, an inclined discharge box 502, an arc-shaped baffle 503, a rotating motor 504, a rotating shaft 505, and a disturbance plate 506. The three screening trays 501 are arranged in parallel from top to bottom and installed on the top surface of the bottom plate 1. The diameters of the three groups of screening holes on the bottom surfaces of the three screening trays 501 are gradually enlarged from bottom to top. The three inclined discharge boxes 502 are respectively fixedly arranged on the outer circumferential surfaces of the bottoms of the three screening trays 501. The three arc-shaped baffles 503 are respectively movably arranged on the top surfaces of the three screening trays 501. The rotating motor 504 is installed on the top surface of the uppermost screening tray 501. The rotating shaft 505 is installed at the output end of the rotating motor 504 and movably penetrates through the center of the bottom surfaces of the three screening trays 501. The three disturbance plates 506 are all fixedly arranged on the outer circumferential surface of the rotating shaft 505 and are respectively located within the three screening trays 501;
[0035] The cleaning unit 6 includes an L-shaped support arm 601, a fixing screw 602, and a cleaning wire 603. Three rectangular grooves are equidistantly formed on the outer circumferential surface of the rotating shaft 505, and the three rectangular grooves are respectively located below the three screening trays 501. The L-shaped support arm 601 is movably arranged on the rectangular grooves, and a limiting hole is formed on the concave surface of its side position. The fixing screw 602 is threadedly connected to the outer circumferential surface of the rotating shaft 505 and movably penetrates through the limiting hole. The cleaning wire 603 is laid on the top surface of the L-shaped support arm 601 and extends into the screening holes.
[0036] Further, the disturbance plate 506 and the rotating shaft 505 are arranged parallel to each other.
[0037] Further, the L-shaped support arm 601, the fixing screw 602, and the cleaning wire 603 are arranged in one-to-one correspondence with the rectangular grooves.
[0038] Further, the first bracket is in an inverted "U" shape.
[0039] Further, the discharge end of the conveying pipe 2 is located above the uppermost screening tray 501.
[0040] The screening unit 5 makes the screening operation structure of the equipment simple and the collection convenient. Embodiment
[0041] As Figure 1 [[ID=I]]、 Figure 2 、 Figure 4 And Figure 5 shown, a granulation conveying device of a polyamide production system includes a bottom plate 1, a conveying pipe 2 installed on the bottom plate 1 through a first bracket, a screw conveyor 3 and a feeding pipe 4 installed on the conveying pipe 2, and further includes: a screening unit 5 and a cleaning unit 6 arranged on the bottom plate 1;
[0042] The screening unit 5 includes a screening tray 501, an inclined discharge box 502, an arc-shaped baffle 503, a rotating motor 504, a rotating shaft 505 and a disturbance plate 506. The three screening trays 501 are arranged in parallel from top to bottom and installed on the top surface of the bottom plate 1. And the diameters of the three groups of screening holes on the bottom surfaces of the three screening trays 501 are gradually enlarged from bottom to top. The three inclined discharge boxes 502 are respectively fixedly arranged on the outer peripheral surfaces of the bottoms of the three screening trays 501. The three arc-shaped baffles 503 are respectively movably arranged on the top surfaces of the three screening trays 501. The rotating motor 504 is installed on the top surface of the uppermost screening tray 501. The rotating shaft 505 is installed at the output end of the rotating motor 504 and movably penetrates through the centers of the bottom surfaces of the three screening trays 501. The three disturbance plates 506 are all fixedly arranged on the outer peripheral surface of the rotating shaft 505 and are respectively located inside the three screening trays 501;
[0043] The cleaning unit 6 includes an L-shaped support arm 601, a fixing screw 602 and a cleaning wire 603. Three rectangular grooves are equidistantly opened on the outer peripheral surface of the rotating shaft 505, and the three rectangular grooves are respectively located below the three screening trays 501. The L-shaped support arm 601 is movably arranged on the rectangular groove and a limiting hole is opened on the concave surface of its side. The fixing screw 602 is threadedly connected to the outer peripheral surface of the rotating shaft 505 and movably penetrates through the limiting hole. The cleaning wire 603 is laid on the top surface of the L-shaped support arm 601 and extends into the screening holes.
[0044] Further, the L-shaped support arm 601, the fixing screw 602 and the cleaning wire 603 are arranged in one-to-one correspondence with the rectangular groove.
[0045] Further, the fixing screw 602 and the rotating shaft 505 are arranged perpendicular to each other.
[0046] Further, the first bracket is in an inverted "U" shape.
[0047] Further, the discharge end of the conveying pipe 2 is located above the uppermost screening tray 501.
[0048] The cleaning unit 6 makes the equipment unclogging operation flexible and the maintenance and replacement simple.
[0049] The working principle of the present utility model is as follows:
[0050] Three sieve discs 501, arranged in parallel from top to bottom and mounted on the top surface of the base plate 1, sequentially screen polyamide particles of different sizes through three sets of sieve holes with gradually increasing diameters from bottom to top. A rotating motor 504 mounted on the top surface of the uppermost sieve disc 501 drives a rotating shaft 505 to rotate on the three sieve discs 501. Three agitator plates 506, fixed on the outer circumference of the rotating shaft 505 and located within the three sieve discs 501, simultaneously agitate the polyamide particles within the three sieve discs 501. After screening, After removing the arc-shaped baffle 503, the three types of polyamide particles remaining in the three sieve trays 501 are separated and discharged through the three inclined discharge boxes 502. The L-shaped support arm 601 is placed on the rectangular groove opened on the outer circumference of the rotating shaft 505. The fixing screw 602 passes through the limiting hole on the side concave surface of the L-shaped support arm 601 and is rotated and assembled onto the outer circumference of the rotating shaft 505. After the L-shaped support arm 601 is fixed, it rotates with the rotating shaft 505. The cleaning wire 603 laid on the top surface of the L-shaped support arm 601 disturbs and cleans the sieve holes to prevent polyamide particles from clogging.
[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A granulation conveying device for a polyamide production system, comprising a base plate (1), a conveying pipe (2) mounted on the base plate (1) via a first support, a screw conveyor (3) mounted on the conveying pipe (2), and a feeding pipe (4), characterized in that, It further includes: A screening unit (5) and a cleaning unit (6) provided on the bottom plate (1); The screening unit (5) includes a sieve tray (501), an inclined discharge box (502), an arc-shaped baffle (503), a rotating motor (504), a rotating shaft (505) and a disturbing plate (506). The three sieve trays (501) are arranged in parallel from top to bottom and installed on the top surface of the bottom plate (1), and the diameters of the three groups of sieve holes on the bottom surfaces of the three sieve trays (501) are gradually enlarged from bottom to top. The three inclined discharge boxes (502) are respectively fixedly provided on the outer circumferential surfaces of the bottoms of the three sieve trays (501). The three arc-shaped baffles (503) are respectively movably provided on the top surfaces of the three sieve trays (501). The rotating motor (504) is installed on the top surface of the uppermost sieve tray (501). The rotating shaft (505) is installed at the output end of the rotating motor (504) and movably penetrates through the center of the bottom surfaces of the three sieve trays (501). The three disturbing plates (506) are all fixedly provided on the outer circumferential surface of the rotating shaft (505) and are respectively located within the three sieve trays (501); The cleaning unit (6) includes an L-shaped support arm (601), a fixing screw (602) and a cleaning wire (603). Three rectangular grooves are equidistantly opened on the outer circumferential surface of the rotating shaft (505), and the three rectangular grooves are respectively located below the three sieve trays (501). The L-shaped support arm (601) is movably provided on the rectangular groove and a limiting hole is opened on its side concave surface. The fixing screw (602) is threadedly connected to the outer circumferential surface of the rotating shaft (505) and movably penetrates through the limiting hole. The cleaning wire (603) is laid on the top surface of the L-shaped support arm (601) and extends into the sieve holes.
2. The granulation and conveying device for a polyamide production system according to claim 1, characterized in that: The disturbing plate (506) is arranged parallel to the rotating shaft (505).
3. The granulation and conveying device for a polyamide production system according to claim 1, characterized in that: The L-shaped support arm (601), the fixing screw (602) and the cleaning wire (603) are arranged in one-to-one correspondence with the rectangular groove.
4. The granulation and conveying device for a polyamide production system according to claim 1, characterized in that: The fixing screw (602) is arranged perpendicular to the rotating shaft (505).
5. The granulation and conveying device for a polyamide production system according to claim 1, characterized in that: The first bracket is in an inverted "U" shape.
6. The granulation and conveying device for a polyamide production system according to claim 1, characterized in that: The discharge end of the conveying pipe (2) is located above the uppermost sieve tray (501).