Polypropylene filament recycling and granulating device

Abstract

The utility model discloses a polypropylene filament recycling and granulating device, which relates to the technical field of granulating devices, and comprises an extrusion granulator, a blanking bin is arranged at the upper end of the extrusion granulator, the interior of the blanking bin is communicated with the extrusion granulator, L-shaped brackets are arranged at two side ends of the blanking bin, and the L-shaped brackets are connected with the extrusion granulator. Two L-shaped supports are arranged on the upper portion of the feeding bin, locking screws are slidably installed at the separated ends of the two L-shaped supports in a penetrating mode, the two L-shaped supports are fixedly connected with the feeding bin in a threaded mode through the locking screws, and a servo motor is fixedly installed between the two L-shaped supports. Then the polypropylene fiber waste is fed into the extrusion pelletizer through rotation of the spiral blade, and the polypropylene fiber waste can be further crushed and decomposed through rotation of the cutting knife, so that the polypropylene fiber waste cannot be blocked in the subsequent discharging process, and the subsequent heating and extrusion efficiency of the polypropylene fiber waste is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of granulation devices, in particular to a polypropylene yarn recovery and granulation device. Background Art

[0002] Polypropylene yarn recycling and granulation is a process that converts discarded or no longer used polypropylene materials into reusable plastic pellets;

[0003] For example, a Chinese patent discloses a polypropylene yarn recovery and granulation device (such as patent publication number: CN217346176U), which includes a reactor, a stirring box arranged below the reactor, and a granulation assembly arranged below the stirring box. The reactor and the stirring box are connected and fixed by a support rod, and the stirring box and the granulation assembly are connected and fixed by a column. A gas filter device is arranged on the top of the reactor, and the gas filter device is connected to the exhaust port arranged on the top of the stirring box through a hose. The gas filter device is connected to the top of the reactor through an air pipe. A guide pipe for diversion is arranged between the side of the reactor and the side of the stirring box, and a silk-making device for discharging polypropylene liquid silk is connected to the bottom of the stirring box. The utility model realizes integrated processing of heating and liquefying polypropylene yarn, cooling into strips, and cutting and granulating, with a small footprint, a high degree of automation, and closed processing that will not affect the health of operators.

[0004] The current polypropylene yarn recovery and granulation device does not have a mechanism for finely cutting the polypropylene yarn when feeding it, which makes the polypropylene yarn prone to blockage during feeding, and the polypropylene yarn that is not finely cut will have reduced efficiency in subsequent heating and extrusion. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a polypropylene yarn recovery and granulation device to solve the problem that the current polypropylene yarn recovery and granulation device has no mechanism for finely cutting the polypropylene yarn when feeding it, which makes the polypropylene yarn prone to blockage when feeding it, and the polypropylene yarn that is not finely cut will reduce the efficiency in the subsequent heating extrusion.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A polypropylene yarn recycling and granulation device comprises an extrusion granulator, wherein a lower feed bin is provided at the upper end of the extrusion granulator, the interior of the lower feed bin is connected with the extrusion granulator, L-shaped brackets are provided at both side ends of the lower feed bin, locking screws are slidably installed through the separated ends of the two L-shaped brackets, the two L-shaped brackets are threadedly fixedly connected to the lower feed bin through the locking screws, a servo motor is fixedly installed between the two L-shaped brackets, a rotating shaft is fixedly installed at the lower end of the servo motor through an output shaft, and two cutting knives are fixedly installed on the circumferential surface of the rotating shaft through bolts.

[0010] Preferably: the two cutting knives are rotatably installed inside the lower bin, a spiral blade is penetrated on the circumferential surface of the lower end of the rotating shaft, the spiral blade is rotatably installed inside the connection between the lower bin and the extrusion granulator, a cover plate is provided at the upper end of the lower bin, and a feed port is provided at the upper end of the cover plate.

[0011] Preferably, an L-shaped plug plate is provided between the cover plate and the lower material bin, the L-shaped plug plate is provided with at least four latches, and the L-shaped plug plate is fixedly connected to the cover plate and the lower material bin through the provided latches.

[0012] (III) Beneficial effects

[0013] 1. The two cutting knives in the present invention will cut the polypropylene yarn entering the feeding bin, and then feed the polypropylene yarn waste into the extrusion granulator through the rotation of the spiral blades. The rotation of the cutting knives can further crush and decompose the polypropylene yarn waste, so that there will be no clogging problem in the subsequent feeding, and the efficiency of the subsequent heating and extrusion of the polypropylene yarn waste is effectively improved.

[0014] Second, in the present invention, the locking screws on both sides of the lower hopper are disassembled. At this time, the L-shaped bracket, the servo motor and the cutting knife can be disassembled from the upper end of the lower hopper, so that the internal parts can be cleaned separately, which effectively improves the cleaning efficiency of the equipment without too many cumbersome disassembly steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural diagram of the entire utility model;

[0017] Figure 2 This is a structural diagram of the lower bin of the utility model;

[0018] Figure 3 This is a structural diagram of the rotating shaft of the utility model;

[0019] Figure 4 It is a structural diagram of the cover plate of the utility model.

[0020] Legend: 11. Cover plate; 12. Feed port; 13. L-shaped plug plate; 21. Servo motor; 22. L-shaped bracket; 23. Rotating shaft; 24. Cutting knife; 25. Spiral blade; 26. Locking screw; 31. Extrusion granulator; 32. Feed bin. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a polypropylene yarn recovery and granulation device, which effectively solves the problem that the current polypropylene yarn recovery and granulation device is prone to clogging when feeding the polypropylene yarn due to the lack of a mechanism for finely cutting the polypropylene yarn, and the efficiency of the polypropylene yarn that is not finely cut will be reduced in the subsequent heating and extrusion. The two cutting knives in the new device will cut the polypropylene yarn entering the feeding bin, and then the polypropylene yarn waste is fed into the extrusion granulator through the rotation of the spiral blade. The rotation of the cutting knife can further crush and decompose the polypropylene yarn waste, so that there will be no clogging problem in the subsequent feeding, and the efficiency of the subsequent heating and extrusion of the polypropylene yarn waste is effectively improved.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application is to effectively solve the problem that the current polypropylene yarn recovery and granulation device is prone to blockage when feeding the polypropylene yarn due to the lack of a fine cutting mechanism, and the polypropylene yarn without fine cutting will reduce the efficiency in the subsequent heating extrusion. The overall idea is as follows:

[0023] In view of the problems existing in the prior art, the utility model provides a polypropylene yarn recycling and granulation device, including an extrusion granulator 31, a lower bin 32 is provided at the upper end of the extrusion granulator 31, the lower bin 32 is connected to the extrusion granulator 31, and L-shaped brackets 22 are provided on both sides of the lower bin 32. The separated ends of the two L-shaped brackets 22 are penetrated and slidably installed with locking screws 26. The two L-shaped brackets 22 are threadedly fixedly connected to the lower bin 32 through the locking screws 26. A servo motor 21 is fixedly installed between the two L-shaped brackets 22. A rotating shaft 23 is fixedly installed at the lower end of the servo motor 21 through an output shaft. Two cutting knives 24 are fixedly installed on the circumferential surface of the rotating shaft 23 through bolts. When the device recycles and granulates the polypropylene yarn, it is necessary to first collect the discarded polypropylene yarn. The polypropylene yarn after preliminary crushing can be put into the feed port 12 at the upper end of the cover plate 11, and the polypropylene yarn will fall into the lower bin 32. The servo motor 21 is in working state when the equipment is in operation. The servo motor 21 drives the rotating shaft 23 to rotate through the output shaft. At this time, the rotating shaft 23 drives the two cutting knives 24 to rotate. The two cutting knives 24 will cut the polypropylene yarn entering the lower bin 32, and then the polypropylene yarn waste is fed into the extrusion granulator 31 through the rotation of the spiral blade 25. The rotation of the cutting knife 24 can further crush and decompose the polypropylene yarn waste, so that there will be no clogging problem in the subsequent feeding, and the efficiency of the subsequent heating and extrusion of the polypropylene yarn waste is effectively improved.

[0024] The two cutting knives 24 are rotatably mounted inside the lower bin 32. The lower end circumferential surface of the rotating shaft 23 is penetrated with a spiral blade 25. The spiral blade 25 is rotatably mounted inside the connection between the lower bin 32 and the extruder granulator 31. The upper end of the lower bin 32 is provided with a cover plate 11. The upper end of the cover plate 11 is provided with a feed port 12. An L-shaped plug plate 13 is provided between the cover plate 11 and the lower bin 32. At least four latches are provided on the L-shaped plug plate 13. The L-shaped plug plate 13 is fixedly connected with the cover plate 11 and the lower bin 32 through the provided latches. After the device is used, the lower bin 32 needs to be fixed. When cleaning the silo 32, it is only necessary to move the L-shaped plug plate 13 upward from the cover plate 11 and the upper end of the lower silo 32, and then the cover plate 11 can be separated from the lower silo 32. At this time, the user can take the cover plate 11 out of the device, and then disassemble the locking screws 26 on both side ends of the lower silo 32. At this time, the L-shaped bracket 22, the servo motor 21 and the cutting knife 24 can all be disassembled from the upper end of the lower silo 32, so that the internal parts can be cleaned separately, which effectively improves the cleaning efficiency of the equipment without too many cumbersome disassembly steps.

[0025] Working principle:

[0026] In the first step, when the equipment recycles and granulates the polypropylene yarn, it is necessary to first collect and classify the discarded polypropylene yarn, and then clean and crush it. After that, the preliminarily crushed polypropylene yarn can be put in from the feed port 12 at the upper end of the cover plate 11, and the polypropylene yarn will fall into the lower bin 32. The servo motor 21 is in working state when the equipment is in operation. The servo motor 21 will drive the rotating shaft 23 to rotate through the output shaft. At this time, the rotating shaft 23 drives the two cutting knives 24 to rotate. The two cutting knives 24 will cut the polypropylene yarn entering the lower bin 32, and then the polypropylene yarn waste is fed into the extrusion granulator 31 through the rotation of the spiral blade 25. The rotation of the cutting knife 24 can further crush and decompose the polypropylene yarn waste, so that there will be no clogging problem in the subsequent feeding, and it effectively improves the efficiency of the subsequent heating and extrusion of the polypropylene yarn waste.

[0027] In the second step, after the equipment is used, when the lower material bin 32 needs to be cleaned, the L-shaped plug plate 13 only needs to be moved upward from the cover plate 11 and the upper end of the lower material bin 32, and then the cover plate 11 can be separated from the lower material bin 32. At this time, the user can take the cover plate 11 out of the equipment, and then disassemble the locking screws 26 on both sides of the lower material bin 32. At this time, the L-shaped bracket 22, the servo motor 21 and the cutting knife 24 can all be disassembled from the upper end of the lower material bin 32, so that the internal components can be cleaned separately, which effectively improves the cleaning efficiency of the equipment without too many cumbersome disassembly steps.

[0028] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A polypropylene yarn recovery and granulation device, comprising an extrusion granulator (31), characterized in that: A lower material bin (32) is provided at the upper end of the extrusion granulator (31), the interior of the lower material bin (32) is connected to the extrusion granulator (31), and L-shaped brackets (22) are provided at both side ends of the lower material bin (32); Wherein, locking screws (26) are slidably installed through the separated ends of the two L-shaped brackets (22), and the two L-shaped brackets (22) are threadedly fixedly connected to the lower bin (32) through the locking screws (26); A servo motor (21) is fixedly mounted between the two L-shaped brackets (22); a rotating shaft (23) is fixedly mounted on the lower end of the servo motor (21) via an output shaft; two cutting knives (24) are fixedly mounted on the circumferential surface of the rotating shaft (23) via bolts passing through the rotating shaft; A spiral blade (25) is provided through the circumferential surface of the lower end of the rotating shaft (23); a cover plate (11) is provided at the upper end of the lower material bin (32); a feed port (12) is provided at the upper end of the cover plate (11); an L-shaped plug plate (13) is provided between the cover plate (11) and the lower material bin (32); at least four latches are provided on the L-shaped plug plate (13); the L-shaped plug plate (13) is fixedly connected to the cover plate (11) and the lower material bin (32) via the provided latches.

2. A polypropylene yarn recovery and granulation device according to claim 1, characterized in that: The two cutting knives (24) are rotatably mounted inside the lower bin (32).

3. A polypropylene yarn recovery and granulation device according to claim 2, characterized in that: The spiral blade (25) is rotatably mounted inside the connection between the lower bin (32) and the extrusion granulator (31).

Images