Regenerated polyester drawing treatment apparatus

Abstract

The application discloses a regenerated polyester drawing treatment equipment and relates to the technical field of regenerated plastics. A melting cabin is arranged below a base, and a driving motor is arranged above the base. The output shaft of the driving motor drives the rotation of an extrusion mechanism in the melting cabin. A shaft coupling is arranged between the driving motor and the melting cabin. A pre-melting cabin is arranged at the upper end of the melting cabin. A melting mechanism and a dedusting mechanism are arranged in the pre-melting cabin. After the plastic material is melted in the pre-melting cabin, the dedusting mechanism is used to remove impurities from the molten plastic solution. The pre-melting cabin is used to preliminarily heat and screen the recycled plastic particles. Then, the molten slurry is directly injected into the melting cabin for secondary heating and polymerization, and then, the subsequent drawing operation is performed. The energy consumption of multiple heating is reduced. The pre-melting cabin can remove impurities from the recycled plastic waste, and the quality of the subsequent plastic products is improved.

Description

Technical Field

[0001] This invention relates to the field of plastic filament technology, and in particular to a recycled polyester filament processing device. Background Technology

[0002] Polyester fiber, also known as polyester, is produced by polymerizing and esterifying chemical raw materials such as PTA and MEG, and then drawing it into fibers. Recycled polyester fiber, on the other hand, is made by re-granulating recycled materials (PET bottle flakes, foam, etc.) and then drawing them into fibers. The widespread use of recycled polyester fiber can save petroleum, reduce air pollution, and is more environmentally friendly.

[0003] Recycled polyester fiber is recycled PET fabric (RPET), a new type of environmentally friendly recycled fabric. Its yarn is extracted from discarded mineral water bottles and cola bottles, and it is also commonly known as cola bottle eco-friendly fabric.

[0004] Plastic filament drawing machines utilize polypropylene and high-density ethylene as raw materials. Through heating, extrusion, slitting, and stretching, flat filaments are formed and then wound up for circular loom weaving. Filament drawing machines have generally undergone multiple improvements and can utilize 100% recycled materials, powders, or granules to draw flat filaments. The extruder screw and barrel are made of 38CrMoAlA alloy steel, nitrided to a hardness of Hv950 or higher. The standard achieved includes a hardened gear reducer made of 20CrMnTi alloy steel, sprockets made of 45# medium carbon steel with high-frequency quenching, hard chrome plated traction rollers, an added self-controlled tension winding roller in the traction mechanism, and cast aluminum heating rings for the extruder barrel, tee, and die head, ensuring durability.

[0005] Recycled polyester fiber simply refers to polyester fabric, waste polyester bottle flakes, waste spinning fibers, foam material, and pulp blocks as raw materials. After crushing and washing the mixture of various materials, it is dried, melt-extruded, spun, wound, bundled and drawn, crimped, relaxed and heat-set, and cut to form polyester fibers of different lengths.

[0006] However, at least the following technical problems were found in the above-mentioned recycling process:

[0007] Existing recycled polyester fibers undergo melting and granulation followed by secondary melting for subsequent spinning during the recycling process, resulting in waste from multiple heating processes and impacting processing efficiency and recycling costs. Furthermore, even after initial cleaning, recycled plastic parts still contain a significant amount of impurities that require secondary removal before they can be directly recycled. This is one of the key reasons why recycling and reuse are separated in existing technologies. Therefore, we propose a recycled polyester fiber drawing processing device. Summary of the Invention

[0008] (a) Technical problems to be solved

[0009] To address the shortcomings of existing technologies, this invention provides a recycled polyester filament processing device. Recycled plastic waste is fed into the chamber through a feed frame. An electric heating block is then activated to heat the material until it melts. A temperature measuring rod detects the stratification of the molten liquid, and the corresponding discharge valve is opened to remove the upper layer of impurities before closing the valve, thus removing the upper layer. Next, a drive pusher moves a filter plate upwards to filter out settling impurities in the molten liquid. The resulting molten plastic then opens a partition and is discharged into the melting chamber, removing settling impurities and solving the technical problem of recycled plastic filament processing.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, the present invention provides the following technical solution:

[0012] A recycled polyester filament processing device includes a melting chamber with a base for support. A drive motor is mounted above the base, and its output shaft drives the extrusion mechanism inside the melting chamber. A coupling connects the drive motor and the melting chamber, converting the high-speed, low-torque drive of the drive motor into the low-speed, high-torque power required by the melting chamber, thus better adapting to usage requirements. A pre-melting chamber is located at the top of the melting chamber, containing a melting mechanism and a purification mechanism. After the plastic material is melted and introduced into the pre-melting chamber, the purification mechanism removes impurities from the molten plastic solution before it is introduced into the melting chamber for extrusion and filament processing.

[0013] Preferably, the pre-melting chamber includes a chamber wall, which is a hollow cylindrical structure. The upper and lower parts are connected to the feed frame and the connecting hole, respectively, for feeding and discharging materials. A filter plate is slidably installed inside the chamber wall. The filter plate is a filter element with an outer support frame and a filter screen in the middle to filter the molten plastic, filtering out some impurities in the recycled plastic and discharging them, thereby reducing the impact of impurities in the recycled plastic and improving the quality of the recycled plastic. A drive push rod is provided below the chamber wall, and the upper end of the drive push rod is fixedly connected to the filter plate. The extension and retraction of the drive push rod controls the filter plate to rise and fall inside the chamber wall, thereby filtering the molten plastic.

[0014] Preferably, several sets of electric heating blocks are installed inside the bulkhead. The electric heating blocks can achieve more uniform heating of the raw materials inside the bulkhead, improving heating efficiency and consistency. The filter plate is symmetrically arranged with multiple sets of connecting rings about the center. Each set of connecting rings has an electric heating block passing through its center. The design of the electric heating block passing through the connecting ring can guide the movement of the filter plate during the lifting process, and can also improve the structural strength of the filter plate.

[0015] Preferably, several sets of guide blocks are provided on the outer side of the bulkhead, and protrusions are provided on the outer side of the corresponding filter plate. The positional accuracy of the filter plate is controlled by inserting the protrusions into the guide blocks. The filter plate has a certain inclined structure design with an inclination angle of 10-15°, which facilitates material discharge through the corresponding slag discharge port.

[0016] Preferably, several sets of slag discharge ports are provided on one side of the bulkhead, which open up the side wall of the bulkhead. A solenoid valve for controlling the switch is provided in the middle of the slag discharge port. The solenoid valve controls the opening and closing of the corresponding bulkhead to achieve the discharge of impurities in the corresponding layer. A baffle is provided below the bulkhead to control the opening and closing of the connection hole, thereby ensuring the sealing of the pre-melting chamber.

[0017] Preferably, a temperature measuring rod is installed inside the bulkhead, passing through the upper side wall of the bulkhead and the filter plate. The corresponding temperature measuring rod can measure the temperature of the molten liquid inside the bulkhead, thereby better locating the position of liquid stratification inside the bulkhead. Correspondingly, the filter plate and slag discharge port are used to filter and discharge impurities, and the internal condition can be determined without opening the bulkhead.

[0018] Preferably, a feeding frame is provided at the upper end of the pre-melting chamber to guide the plastic blocks that have undergone preliminary crushing and cleaning. In addition, a switch sealing block is provided inside the feeding frame to facilitate closed heating and improve thermal efficiency. The feeding frame is an inclined conical guide groove to gather the incoming material and improve the convenience of feeding.

[0019] Preferably, an operation panel is provided on the outer side of the upper end of the base, and a PLC control module is provided inside the operation panel. The operation panel includes a display screen that can display the actual processing status of the drive motor and the pre-melting chamber, which is convenient for monitoring and control.

[0020] Preferably, a threaded shaft is provided inside the melting chamber, and a connecting hole is provided between the pre-melting chamber and the melting chamber. The recycled plastic after melting in the pre-melting chamber is introduced into the melting chamber through the connecting hole. A discharge port is provided at the left end of the melting chamber. The plastic in the melting chamber is extruded through the discharge port by the threaded shaft for subsequent filament drawing. The threaded shaft structure inside the melting chamber further heats and pressurizes the plastic raw material in the pre-melting chamber, thereby increasing the density of the plastic and improving the quality of the subsequent plastic filament products.

[0021] Preferably, a connecting shaft is rotatably mounted inside the coupling via a bushing. The left end of the connecting shaft is coaxially fixedly connected to the threaded shaft via a rotating block, and the right end of the connecting shaft is provided with a connecting block. The connecting block is used to coaxially connect the connecting shaft to the operating disc, thereby transmitting the rotation of the operating disc. The stability of the extruder under heavy-load conditions is ensured by the support of multiple sets of transmission structures.

[0022] (III) Beneficial Effects

[0023] 1. The pre-melting chamber allows for the initial heating and screening of recycled plastic granules. The molten slurry is then directly injected into the melting chamber for secondary heating and polymerization before subsequent fiber drawing. This reduces the energy consumption from multiple heating processes, resulting in higher equipment integration, higher production efficiency, lower costs, and energy conservation and environmental protection. Furthermore, the pre-melting chamber can remove impurities from the recycled plastic waste, improving the purity of the recycled plastic and thus enhancing the quality of subsequent plastic products.

[0024] 2. The recycled plastic waste is fed into the chamber through the feed frame. The heating block is turned on to heat it until it melts. The temperature measuring rod is used to detect the stratification of the molten liquid. The corresponding slag discharge valve is opened to discharge the upper layer of impurities and then the valve is closed to remove the upper layer of impurities. Then, the filter plate is moved upward by the drive push rod to filter the settling impurities in the molten liquid. The resulting plastic melt is discharged into the melting chamber through the partition to remove the settling impurities.

[0025] 3. The filter plate has an outer support frame and a filter screen in the middle to filter the molten plastic, removing some impurities from the recycled plastic and reducing the impact of impurities in the recycled plastic, thus improving the quality of the recycled plastic. The design of the heating block passing through the connecting ring can guide the movement of the filter plate during the lifting process and also improve the structural strength of the filter plate. The positional accuracy of the filter plate can be controlled by inserting the protrusion into the guide block. The filter plate has a certain tilt structure design with an inclination angle of 10-15° to the threaded shaft, which facilitates the discharge of material through the corresponding slag discharge port. Attached Figure Description

[0026] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a front view of a recycled polyester filament processing device according to the present invention;

[0028] Figure 2 This is a top view of a recycled polyester filament processing device according to the present invention;

[0029] Figure 3 This is a cross-sectional view of a recycled polyester filament processing equipment plate according to the present invention;

[0030] Figure 4 This is a structural diagram of the melting chamber in a recycled polyester filament drawing device according to the present invention;

[0031] Figure 5 This is a cross-sectional view of the pre-melting chamber in a recycled polyester filament drawing device according to the present invention.

[0032] Figure 6 This is a top view of the melting chamber in a recycled polyester filament processing device according to the present invention.

[0033] Legend: 1. Base; 2. Drive motor; 3. Control panel; 4. Coupling; 5. Melting chamber; 6. Pre-melting chamber; 61. Chamber wall; 62. Partition plate; 63. Drive push rod; 64. Temperature measuring rod; 65. Heating block; 66. Slag discharge port; 67. Filter plate; 68. Connecting ring; 69. Guide block; 7. Feed frame; 8. Connecting hole; 9. Rotating block; 10. Threaded shaft; 11. Discharge port; 12. Connecting block; 13. Connecting shaft. Detailed Implementation

[0034] This application provides a recycled polyester filament processing device that solves the problem of repeated heating and melting of recycled plastic after granulation in the prior art. By combining the melting process of recycled plastic with the filament processing equipment, the recycled granulated plastic can be melted in one step and directly extruded and drawn into filaments, reducing the number of steps and improving efficiency.

[0035] Example 1

[0036] The technical solution in this application embodiment is to solve the problem of removing impurities from recycled plastics, and the overall approach is as follows:

[0037] like Figure 1-3 As shown, to address the problems existing in the prior art, the present invention provides a recycled polyester filament processing device, including a melting chamber 5, with a base 1 provided below the melting chamber 5 for support. A drive motor 2 is provided above the base 1, and the output shaft of the drive motor 2 drives the extrusion mechanism inside the melting chamber 5 to rotate. A coupling 4 is provided between the drive motor 2 and the melting chamber 5, which converts the high-speed, low-torque drive of the drive motor 2 into the low-speed, high-torque power required by the melting chamber 5, better adapting to the usage requirements. A pre-melting chamber 6 is provided at the upper end of the melting chamber 5, and a melting mechanism and a purification mechanism are provided inside the pre-melting chamber 6. After the plastic material is melted and fed into the pre-melting chamber 6, the purification mechanism removes impurities from the molten plastic solution before it is introduced into the melting chamber 5 for extrusion and filament drawing.

[0038] like Figure 5-6As shown, the pre-melting chamber 6 includes a chamber wall 61, which is a hollow cylindrical structure. The upper and lower parts of the chamber wall 61 are connected to the feed frame 7 and the connecting hole 8, respectively, for feeding and discharging materials. A filter plate 67 is slidably installed inside the chamber wall 61. The filter plate 67 is an outer support frame with a filter screen in the middle, used to filter the molten plastic, removing some impurities from the recycled plastic and reducing the impact of impurities, thus improving the quality of the recycled plastic. A drive push rod 63 is located below the chamber wall 61, with its upper end fixedly connected to the filter plate 67. The extension and retraction of the drive push rod 63 controls the lifting and lowering of the filter plate 67 within the chamber wall 61, achieving the filtration of the molten plastic.

[0039] The bulkhead 61 is internally equipped with several sets of heating blocks 65. These heating blocks 65 enable more uniform heating of the raw materials inside the bulkhead 61, improving heating efficiency and consistency. The filter plate 67 has multiple sets of connecting rings 68 symmetrically arranged about its center. Each connecting ring 68 has a heating block 65 passing through its center. This design, where the heating block 65 passes through the connecting ring 68, guides the movement of the filter plate 67 during lifting and lowering, and also enhances the structural strength of the filter plate 67.

[0040] Several sets of guide blocks 69 are provided on the outer side of the bulkhead 61, and corresponding protrusions are provided on the outer side of the filter plate 67. The positional accuracy of the filter plate 67 is controlled by inserting the protrusions into the guide blocks 69. The filter plate 67 has a certain inclined structure design, with an inclination angle of 10-15°, which facilitates material discharge through the corresponding slag discharge port 66.

[0041] Several sets of slag discharge ports 66 are provided on one side of the bulkhead 61. The slag discharge ports 66 open through the side wall of the bulkhead 61. A solenoid valve for controlling the switch is provided in the middle of the slag discharge port 66. The solenoid valve controls the opening and closing of the corresponding bulkhead 61 to achieve the discharge of impurities in the corresponding layer. A baffle 62 is provided below the bulkhead 61. The baffle 62 controls the opening and closing of the connecting hole 8 to ensure the airtightness of the pre-melting chamber 6.

[0042] A temperature measuring rod 64 is installed inside the bulkhead 61, passing through the upper side wall of the bulkhead 61 and the filter plate 67. The temperature measuring rod 64 can measure the temperature of the molten liquid inside the bulkhead 61, thus allowing for better location of liquid stratification within the bulkhead 61. This, combined with the filter plate 67 and the slag discharge port 66, enables the filtration and discharge of impurities, allowing for assessment of the internal conditions without opening the bulkhead 61. The pre-melting chamber 6 provides initial heating and screening of the recycled plastic granules. The molten slurry is then directly injected into the melting chamber 5 for secondary heating and polymerization before subsequent fiber drawing. This reduces energy consumption from multiple heating processes, resulting in higher equipment integration, higher production efficiency, lower costs, and energy conservation and environmental protection. Furthermore, the pre-melting chamber 6 can remove impurities from the recycled plastic waste, improving the purity of the recycled plastic and thus enhancing the quality of subsequent plastic products.

[0043] In use, the recycled plastic waste is first fed into the chamber wall 61 through the feed frame 7. At this time, the electric heating block 65 is turned on to heat it until it melts. Then, the temperature measuring rod 64 is used to detect the stratification of the molten liquid. The corresponding slag discharge port 66 valve is opened to discharge the upper impurities and then the valve is closed. Then, the filter plate 67 is pushed upward by the drive push rod 63 to filter the sedimentation impurities in the molten liquid. The resulting plastic melt is discharged into the melting chamber 5 through the partition 62.

[0044] Example 2

[0045] Based on Example 1, the embodiments of this application optimize the integrated structural design of the process of recycling and melting, granulation, and secondary melting. The overall idea is as follows:

[0046] A recycled polyester filament processing device includes a melting chamber 5, with a base 1 supporting the melting chamber 5. A drive motor 2 is mounted above the base 1, and the output shaft of the drive motor 2 drives the extrusion mechanism inside the melting chamber 5 to rotate. A coupling 4 is provided between the drive motor 2 and the melting chamber 5, converting the high-speed, low-torque drive of the drive motor 2 into the low-speed, high-torque power required by the melting chamber 5, better adapting to usage requirements. A pre-melting chamber 6 is located at the upper end of the melting chamber 5, containing a melting mechanism and a purification mechanism. After the plastic material is melted and fed into the pre-melting chamber 6, the purification mechanism removes impurities from the molten plastic solution before it is introduced into the melting chamber 5 for extrusion and filament drawing.

[0047] like Figure 5-6As shown, the pre-melting chamber 6 includes a chamber wall 61, which is a hollow cylindrical structure. The upper and lower parts of the chamber wall 61 are connected to the feed frame 7 and the connecting hole 8, respectively, for feeding and discharging materials. A filter plate 67 is slidably installed inside the chamber wall 61. The filter plate 67 is an outer support frame with a filter screen in the middle, used to filter the molten plastic, removing some impurities from the recycled plastic and reducing the impact of impurities, thus improving the quality of the recycled plastic. A drive push rod 63 is located below the chamber wall 61, with its upper end fixedly connected to the filter plate 67. The extension and retraction of the drive push rod 63 controls the lifting and lowering of the filter plate 67 within the chamber wall 61, achieving the filtration of the molten plastic.

[0048] The bulkhead 61 is internally equipped with several sets of heating blocks 65. These heating blocks 65 enable more uniform heating of the raw materials inside the bulkhead 61, improving heating efficiency and consistency. The filter plate 67 has multiple sets of connecting rings 68 symmetrically arranged about its center. Each connecting ring 68 has a heating block 65 passing through its center. This design, where the heating block 65 passes through the connecting ring 68, guides the movement of the filter plate 67 during lifting and lowering, and also enhances the structural strength of the filter plate 67.

[0049] Several sets of guide blocks 69 are provided on the outer side of the bulkhead 61, and corresponding protrusions are provided on the outer side of the filter plate 67. The positional accuracy of the filter plate 67 is controlled by inserting the protrusions into the guide blocks 69. The filter plate 67 has a certain inclined structure design, with an inclination angle of 10-15°, which facilitates material discharge through the corresponding slag discharge port 66.

[0050] Several sets of slag discharge ports 66 are provided on one side of the bulkhead 61. The slag discharge ports 66 open through the side wall of the bulkhead 61. A solenoid valve for controlling the switch is provided in the middle of the slag discharge port 66. The solenoid valve controls the opening and closing of the corresponding bulkhead 61 to achieve the discharge of impurities in the corresponding layer. A baffle 62 is provided below the bulkhead 61. The baffle 62 controls the opening and closing of the connecting hole 8 to ensure the airtightness of the pre-melting chamber 6.

[0051] A temperature measuring rod 64 is installed inside the bulkhead 61, passing through the upper side wall of the bulkhead 61 and the filter plate 67. The temperature measuring rod 64 can measure the temperature of the molten liquid inside the bulkhead 61, thus allowing for better location of liquid stratification within the bulkhead 61. This, combined with the filter plate 67 and the slag discharge port 66, enables the filtration and discharge of impurities, allowing for assessment of the internal conditions without opening the bulkhead 61. The pre-melting chamber 6 provides initial heating and screening of the recycled plastic granules. The molten slurry is then directly injected into the melting chamber 5 for secondary heating and polymerization before subsequent fiber drawing. This reduces energy consumption from multiple heating processes, resulting in higher equipment integration, higher production efficiency, lower costs, and energy conservation and environmental protection. Furthermore, the pre-melting chamber 6 can remove impurities from the recycled plastic waste, improving the purity of the recycled plastic and thus enhancing the quality of subsequent plastic products.

[0052] In use, the recycled plastic waste is first fed into the chamber wall 61 through the feed frame 7. At this time, the electric heating block 65 is turned on to heat it until it melts. Then, the temperature measuring rod 64 is used to detect the stratification of the molten liquid. The corresponding slag discharge port 66 valve is opened to discharge the upper impurities and then the valve is closed. Then, the filter plate 67 is pushed upward by the drive push rod 63 to filter the sedimentation impurities in the molten liquid. The resulting plastic melt is discharged into the melting chamber 5 through the partition 62.

[0053] The pre-melting chamber 6 is equipped with a feeding frame 7 at its upper end. The feeding frame 7 is used to guide the plastic blocks that have undergone preliminary crushing and cleaning. In addition, the feeding frame 7 is equipped with a switch sealing block to facilitate closed heating and improve thermal efficiency. The feeding frame 7 is an inclined conical guide groove used to gather the incoming material and improve the convenience of feeding.

[0054] An operation panel 3 is provided on the outer side of the upper end of the base 1. A PLC control module is provided inside the operation panel 3. The operation panel 3 includes a display screen that can display the actual processing status of the drive motor 2 and the pre-melting chamber 6 in the operation panel 3 for easy monitoring and control.

[0055] like Figure 4 As shown, a threaded shaft 10 is provided inside the melting chamber 5. A connecting hole 8 is provided between the pre-melting chamber 6 and the melting chamber 5. The recycled plastic after melting in the pre-melting chamber 6 is introduced into the melting chamber 5 through the connecting hole 8. A discharge port 11 is provided at the left end of the melting chamber 5. The plastic in the melting chamber 5 is extruded through the discharge port 11 by the threaded shaft 10 for subsequent fiber drawing. The structure of the threaded shaft 10 inside the melting chamber 5 further heats and pressurizes the plastic raw material in the pre-melting chamber 6, improving the density of the plastic and thus improving the quality of the subsequent plastic fiber products.

[0056] The coupling 4 contains a connecting shaft 13 rotatably mounted via a bushing. The left end of the connecting shaft 13 is coaxially fixedly connected to the threaded shaft 10 via a rotating block 9. The right end of the connecting shaft 13 is provided with a connecting block 12, which coaxially connects the connecting shaft 13 to the operating disc 3, thereby transmitting the rotation of the operating disc 3. The support of multiple sets of transmission structures ensures the stability of the extruder under heavy-load conditions.

[0057] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A recycled polyester filament processing device, comprising a melting chamber (5), a base (1) disposed below the melting chamber (5), a drive motor (2) disposed above the base (1), the output shaft of the drive motor (2) driving the extrusion mechanism inside the melting chamber (5) to rotate, wherein a coupling (4) is disposed between the drive motor (2) and the melting chamber (5), a pre-melting chamber (6) is disposed at the upper end of the melting chamber (5), the pre-melting chamber (6) is provided with a melting mechanism and a purification mechanism, wherein plastic material is melted and fed into the pre-melting chamber (6), and the molten plastic solution is purified by the purification mechanism, and then introduced into the melting chamber (5) for extrusion and filament processing, characterized in that, The pre-melting chamber (6) includes a chamber wall (61), which is a hollow cylindrical structure and is connected to the feed frame (7) and the connecting hole (8) at the top and bottom, respectively. The impurity removal mechanism includes a filter plate (67) and a slag discharge port (66). The filter plate (67) is slidably installed inside the bulkhead (61). The filter plate (67) is an outer support frame with a filter screen in the middle. A drive push rod (63) is provided below the bulkhead (61), and the upper end of the drive push rod (63) is fixedly connected to the filter plate (67). The melting mechanism inside the bulkhead (61) consists of several sets of electric heating blocks (65). The middle filter plate (67) is symmetrically arranged with multiple sets of connecting rings (68) about the center. Each set of connecting rings (68) has an electric heating block (65) passing through its center. Several sets of guide blocks (69) are provided on the outer side of the bulkhead (61), and protrusions are provided on the outer side of the corresponding filter plate (67). The filter plate (67) has a certain inclined structure design with an inclination angle of 10-15°. A number of slag discharge ports (66) are provided on one side of the bulkhead (61). The slag discharge ports (66) open the side wall of the bulkhead (61). A solenoid valve for controlling the switch is provided in the middle of the slag discharge port (66). The solenoid valve controls the switch of the corresponding bulkhead (61) to realize the discharge of impurities in the corresponding layer. A partition (62) is provided below the bulkhead (61). A temperature measuring rod (64) is provided inside the bulkhead (61). The temperature measuring rod (64) passes through the upper side wall of the bulkhead (61) and the filter plate (67). The corresponding temperature measuring rod (64) can measure the temperature of the molten liquid inside the bulkhead (61). The melting chamber (5) is provided with a threaded shaft (10), and a connecting hole (8) is provided between the pre-melting chamber (6) and the melting chamber (5). The left end of the melting chamber (5) is provided with a discharge port (11).

2. The recycled polyester filament drawing equipment as described in claim 1, characterized in that: The pre-melting chamber (6) is provided with a feeding frame (7) at the upper end. In addition, a switch sealing block is provided inside the feeding frame (7). The feeding frame (7) is an inclined conical guide groove.

3. The recycled polyester filament drawing equipment as described in claim 1, characterized in that: The coupling (4) has a connecting shaft (13) rotatably mounted inside the bushing. The left end of the connecting shaft (13) is coaxially fixedly connected to the threaded shaft (10) through the rotating block (9). The right end of the connecting shaft (13) is provided with a connecting block (12), which is used to coaxially connect the connecting shaft (13) to the operating panel (3).

4. The recycled polyester filament drawing equipment as described in claim 1, characterized in that: An operation panel (3) is provided on the outer side of the upper end of the base (1). A PLC control module is provided inside the operation panel (3). The operation panel (3) includes a display screen to monitor and control the processing status of the drive motor (2) and the pre-melting chamber (6) in real time.

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