Hot drawing machine for antibacterial polymer fiber production and drawing method

Abstract

The invention discloses a hot drawing machine for antibacterial polymer fiber production and a drawing method, relates to the technical field of antibacterial polymer fiber production, and solves the problems that the temperature distribution of hot air entering an air duct becomes non-uniform, the fiber fineness becomes non-uniform, and the production efficiency is improved due to the fact that mixing is non-uniform after an existing hot drawing machine is heated. And the overall strength is reduced. Comprising a base and a treatment bin arranged at the upper end of the base, and inlet-outlet grooves are formed in the two sides of the treatment bin in a penetrating mode; the treatment mechanism comprises a preheating assembly and a heating mechanism; a preheating cavity, a hot drafting cavity and a cooling cavity are formed in the treatment bin; by means of the design, fibers can be evenly heated, and uneven temperature distribution of hot air entering the air duct is effectively avoided; and when the fibers are longitudinally clamped and fixed and transversely stretched, the fibers can be limited, so that the fibers can be effectively prevented from deviating in the stretching process, and the production quality of the antibacterial polymer fibers is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of antibacterial polymer fiber production, and in particular relates to a hot stretching machine and a stretching method for producing antibacterial polymer fibers. Background Art

[0002] The hot stretching machine is a machine that improves the microstructure and physical properties of fibers through heating and stretching processes. In the production of antibacterial polymer fibers, the hot stretching machine plays a vital role. It can increase the size of graphite-like microcrystals inside the fibers and increase the degree of orientation along the fiber axis, thereby significantly improving the microstructure of the fibers and improving their physical properties.

[0003] At present, most of the stretching heat machines on the market use hot air circulation to heat and maintain a constant temperature for antibacterial polymer fibers. An air duct is provided in the box to provide circulating hot air. A circulating fan and an electric heating box are provided in the air duct. The heat generated by the electric heating box is conducted to the fiber through the circulating fan to heat the fiber.

[0004] However, the hot air will be unevenly mixed after heating, which can easily lead to uneven temperature distribution of the hot air entering the air duct. In addition, when the hot air enters from one end of the air duct and is transmitted inside it, heat loss will occur, which further aggravates the unevenness of the internal temperature, making the fiber fineness uneven, reducing the overall strength, and increasing the number of broken fibers during the drawing process. Therefore, based on the above problems, we designed a hot drawing machine and drawing method for the production of antibacterial polymer fibers. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a hot stretching machine and a stretching method for producing antibacterial polymer fibers, which solve the problem of uneven mixing in the existing hot stretching machine after heating, resulting in uneven temperature distribution of hot air entering the air duct, uneven fiber fineness, and reduced overall strength.

[0006] To achieve the above-mentioned object, according to an embodiment of the first aspect of the present invention, a hot stretching machine and a stretching method for producing antibacterial polymer fibers are provided, comprising a base and a processing chamber arranged at the upper end of the base, wherein both sides of the processing chamber are penetrated by inlet and outlet grooves;

[0007] Also includes:

[0008] A processing mechanism, the processing mechanism comprising a preheating component and a heating mechanism;

[0009] The processing chamber is provided with a preheating chamber, a hot drawing chamber and a cooling chamber, and a connecting guide groove is provided between the preheating chamber, the hot drawing chamber and the cooling chamber;

[0010] The preheating component is arranged in the preheating chamber, and the heating mechanism is arranged in the preheating stretching chamber.

[0011] A further improvement is that the preheating assembly includes a mounting frame that is slidably arranged on the inner wall of the preheating chamber, a micro-clamping cylinder vertically connected to each mounting frame, a preheating clamping cover connected to the end of the rod body of each micro-clamping cylinder, and an electric heating plate connected to each preheating clamping cover, both sides of the preheating clamping cover are provided with notches, and auxiliary clamping rollers are rotatably arranged in each notch, and a pair of micro-DC servo motors are arranged on the side of the upper preheating clamping cover, and the main shaft of the micro-DC servo motor is connected to each upper auxiliary clamping roller.

[0012] A further improvement is that the heating mechanism includes a heating cover connected up and down to the inner wall of one side of the hot stretching chamber, an infrared heating element connected to the inner wall of each heating cover, a base connected up and down to the inner wall of the other side of the hot stretching chamber, a guide channel connected to the lower end of the side of each base, a T-shaped guide rod connected to the guide channel, a reset spring sleeved on the T-shaped guide rod and connected to the side of the side guide channel, a micro-clamping cylinder II connected to the end of the T-shaped guide rod, a clamping frame that is movably clamped on each heating cover and connected to the rod body of the two micro-clamping cylinders II, a reel connected to the port of each base and a pull rope wound around each reel and connected at the end to the end of the T-shaped guide rod.

[0013] A further improvement is that a stepper motor is connected to the side of each base, the motor spindle of the stepper motor is connected to each reel respectively, and a fixed pulley is connected to the end of the guide channel, and the pull rope is placed on the fixed pulley.

[0014] A further improvement is that guide grooves are provided on both sides of the exterior of each heating cover, each guide groove is divided into a horizontal section and a vertical section, and a guide block is provided on the inner wall of the clamping frame, and the guide block and the guide groove are cooperatively connected.

[0015] A further improvement is that it also includes a cooling component, which includes a cooling water tank arranged in the cooling chamber, a Z-shaped traction roller arranged in the cooling water tank, and a heat dissipation fan box arranged on the processing bin. The top surface of the cooling water tank is provided with a heat dissipation port, and the side of the heat dissipation fan box is embedded with a heat dissipation fan, and the interface of the heat dissipation fan box passes through the cooling chamber and is connected to the heat dissipation port on the top surface of the cooling water tank.

[0016] A further improvement is that it also includes a cleaning component, which includes a mounting rod connected to both ends of one side of the processing chamber, a cleaning pipe connected to the upper end of the mounting rod, and a blower connected to the side of the mounting rod and having a port connected to an interface on the side of the cleaning pipe, and a plurality of air outlet slots are evenly arranged on the bottom surface of the cleaning pipe.

[0017] A stretching method of a hot stretching machine for producing antibacterial polymer fibers, comprising the following steps:

[0018] Step 1: Start the blower to blow air, so that the air flow acts on the fiber from several air outlets on the bottom of the cleaning tube, blows off the dust and impurities attached to the fiber, and then guides the fiber into the preheating chamber;

[0019] Step 2: Synchronously start the micro-gripping cylinders 1 on each of the upper and lower mounting frames, and use the two micro-gripping cylinders 1 to drive the upper and lower preheating clamps to move closer to each other until the auxiliary clamping rollers on both sides clamp the fiber and make the inner walls of the upper and lower electric heating plates fit the fiber surface. Then, start the two electric heating plates, use the resistance wire in the electric heating plates to generate heat, and preheat both sides of the fiber section;

[0020] Step 3: After preheating, the fiber section is transferred to the hot stretching chamber through the connecting guide groove and placed inside a pair of heating covers. At this time, the next section of fiber continues to be transferred to the preheating chamber and is clamped by the upper and lower auxiliary clamping rollers. Then, the two micro-clamping cylinders at both ends of each T-shaped guide rod are started to drive the clamping frames to move closer to each other to clamp the fiber. Next, the stepper motor is started to drive the reel to roll up the pull rope, so that the pull rope pulls the T-shaped guide rod and the clamping frame, and pulls and stretches the fiber.

[0021] Step 4: After the fiber section is stretched, it is further transferred to the cooling chamber by the pulling roller. At this time, the fiber exchanges heat with the cooling water in the cooling chamber to quickly cool down the fiber section.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The present invention starts the blower to blow air, so that the air flow acts on the fiber from several air outlet slots on the bottom surface of the cleaning tube. This design can blow off the dust and impurities attached to the fiber, improve the cleanliness of the fiber surface, and avoid affecting the hot drawing process;

[0024] (2) The present invention synchronously starts the micro-clamping cylinder 1 on each of the upper and lower mounting frames, and uses two micro-clamping cylinders 1 to drive the upper and lower preheating clamps to move closer to each other until the auxiliary clamping rollers on both sides clamp the fiber and make the inner walls of the upper and lower electric heating plates fit with the fiber surface. Subsequently, the resistance wire in the electric heating plate is used to generate heat to directly preheat both sides of the fiber segment. Compared with the traditional hot air method, this design allows the fiber to be heated evenly and effectively avoids uneven temperature distribution of the hot air entering the air duct. In addition, the oil substances adhering to the fiber can be volatilized, avoiding the generation of bubbles during the hot pulling process, and effectively improving the plasticity of the fiber, thereby shortening the heating time of the fiber in the mold and significantly improving the production efficiency of the fiber;

[0025] (3) In the present invention, after the fiber segment is preheated, it is transmitted to the hot stretching chamber through the connecting guide groove and placed inside a pair of heating covers. At this time, the next fiber segment continues to be transmitted to the preheating chamber and is clamped by the upper and lower auxiliary clamping rollers. Then, the two micro-clamping cylinders at the two ends of each T-shaped guide rod are started to drive the clamping frames to move closer to each other to clamp the fiber. Next, the stepper motor is started to drive the reel to roll up the pull rope, so that the pull rope pulls the T-shaped guide rod and the clamping frame, and the fiber is pulled and stretched to increase its length. In this way, the fineness and uniformity of the fiber are maintained on the basis of heating by the infrared heating element. During the stretching process, the guide block and the guide groove on the inner side of each clamping frame are connected in a coordinated manner, and each guide groove is divided into a transverse section and a vertical section. This design can limit the position when the fiber is clamped and fixed longitudinally and stretched transversely, thereby effectively avoiding displacement during the stretching process, thereby improving the production quality of the antibacterial polymer fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall cross-sectional side view of the present invention;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the entire preheating assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of the entire heating mechanism in the hot stretching chamber of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the sliding sleeve of the clamping frame on the heating cover in a cross-sectional side view of the present invention;

[0031] Figure 6 It is a schematic diagram of the front cross-sectional structure of the clamping frame of the present invention slidingly sleeved on the heating cover.

[0032] Markings in the figure:

[0033] 1. Base;

[0034] 2. Processing chamber; 201. Inlet and outlet slot; 202. Observation window; 203. Preheating chamber; 204. Hot stretching chamber; 205. Cooling chamber; 206. Connecting guide slot;

[0035] 3. Cleaning assembly; 31. Mounting rod; 32. Blower; 33. Cleaning pipe; 301. Air outlet slot 301;

[0036] 4. Cooling fan box; 41. Cooling fan; 42. Traction roller; 43. Cooling water tank; 401. Cooling port;

[0037] 5. Processing mechanism; 51. Preheating assembly; 511. Micro clamping cylinder 1; 512. Preheating clamping cover; 513. Electric heating plate; 514. Notch; 515. Auxiliary clamping roller; 516. Mounting frame;

[0038] 52. Heating mechanism; 520. Pull rope; 521. Heating cover; 522. Infrared heating element; 523. Base; 524. Reel; 525. Guide channel; 526. T-shaped guide rod; 527. Return spring; 528. Micro clamping cylinder II; 529. Clamping frame;

[0039] 501, guide groove; 502, horizontal section; 503, vertical section; 504, guide block. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] like Figure 1 As shown, a hot stretching machine and stretching method for producing antibacterial polymer fibers include a base 1 and a processing chamber 2 disposed on the upper end of the base 1, both sides of the processing chamber 2 are penetrated with inlet and outlet grooves 201, and the side of the processing chamber 2 is provided with an observation window 202 for observing the processing status of the fibers in the processing chamber 2;

[0042] The processing chamber 2 is provided with a preheating chamber 203, a hot stretching chamber 204 and a cooling chamber 205, and a connecting guide groove 206 is provided between the preheating chamber 203, the hot stretching chamber 204 and the cooling chamber 205, and the guide groove 206 is used for conveying fibers;

[0043] like Figures 2 to 6 As shown, when implemented, it includes: a processing mechanism 5, the processing mechanism 5 includes a preheating component 51 and a heating mechanism 52;

[0044] The preheating assembly 51 includes a mounting frame 516 slidably arranged on the inner wall of the preheating chamber 203, a micro-clamping cylinder 511 vertically connected to each mounting frame 516, a preheating clamping cover 512 connected to the end of the rod body of each micro-clamping cylinder 511, and an electric heating plate 513 connected to each preheating clamping cover 512. Notches 514 are provided on both sides of the preheating clamping cover 512, and auxiliary clamping rollers 515 are rotatably arranged in each notch 514. A pair of micro-DC servo motors are arranged on the side of the upper preheating clamping cover 512, and the main shaft of the micro-DC servo motor is connected to each upper auxiliary clamping roller 515. By synchronously starting the micro-clamping cylinder 511 on each upper and lower mounting frame 516, the two micro-clamping cylinders 511 are used to drive the upper and lower preheating clamping covers 512 to move closer to each other until the auxiliary clamping rollers 515 on both sides clamp the fiber and make the inner walls of the upper and lower electric heating plates 513 fit the fiber surface. Then, the two electric heating plates 513 are started, and the heat generated by the resistance wire in the electric heating plates 513 is used to directly preheat the double sides of the fiber. Compared with the traditional hot air method, this design allows the fiber to be heated evenly, effectively avoiding uneven temperature distribution of the hot air entering the air duct;

[0045] The heating mechanism 52 includes a heating cover 521 connected to the inner wall of the heat drawing chamber 204 on one side through a bracket, an infrared heating element 522 connected to the inner wall of each heating cover 521, a base 523 connected to the inner wall of the other side of the heat drawing chamber 204, a guide channel 525 connected to the lower end of the side of each base 523, a T-shaped guide rod 526 connected to the guide channel 525, a return spring 527 sleeved on the T-shaped guide rod 526 and connected to the side of the side guide channel 525, a micro-gripping cylinder 528 connected to the end of the T-shaped guide rod 526, a clamping frame 529 movably clamped on each heating cover 521 and connected to the rod body of two micro-gripping cylinders 528, a reel 524 connected to the port of each base 523, and a pull rope 520 wound on each reel 524 and connected to the end of the T-shaped guide rod 526;

[0046] Specifically, a stepper motor is connected to the side of each base 523, and the motor shaft of the stepper motor is connected to each reel 524 respectively. A fixed pulley is connected to the end of the guide channel 525, and the pull rope 520 is placed on the fixed pulley. With the cooperation of the preheating component 52, the next section of fiber continues to be transmitted to the preheating chamber 203, and is clamped by the upper and lower auxiliary clamping rollers 515. Then, the micro-clamping cylinder 2 528 at both ends of each T-shaped guide rod 526 is started to drive the clamping frame 529 to move closer to each other to clamp the fiber. Next, the stepper motor is started to drive the reel 524 to roll up the pull rope 520, so that the pull rope 520 pulls the T-shaped guide rod 526 and the clamping frame 529, and pulls and stretches the fiber to increase its length. In this way, the fineness and uniformity of the fiber are maintained on the basis of heating by the infrared heating element 522;

[0047] Specifically, as a preferred embodiment, guide grooves 501 are provided on both sides of the outside of each heating cover 521, and each guide groove 501 is divided into a transverse section 502 and a vertical section 503. A guide block 504 is provided on the inner wall of the clamping frame 529, and the guide block 504 and the guide groove 501 are connected in cooperation. The bottom surface of the clamping frame 529 is designed as an arc surface. During the drafting process, the guide block 504 on the inner side of each clamping frame 529 is connected in cooperation with the guide groove 501, and each guide groove 501 is divided into a transverse section 502 and a vertical section 503. This design can limit the position when the fiber is clamped and fixed longitudinally and stretched transversely, so as to effectively avoid displacement during the stretching process, thereby improving the production quality of the antibacterial polymer fiber.

[0048] like Figure 2 As shown, in this embodiment, an implementation scheme is also provided, including a cooling component, the cooling component includes a cooling water tank 43 arranged in the cooling chamber 205, a Z-shaped traction roller 42 arranged in the cooling water tank 43, and a heat dissipation fan box 4 arranged on the processing chamber 2, the top surface of the cooling water tank 43 is provided with a heat dissipation port 401, the side of the heat dissipation fan box 4 is embedded with a heat dissipation fan 41, and the interface of the heat dissipation fan box 4 passes through the cooling chamber 205 and is connected to the heat dissipation port 401 on the top surface of the cooling water tank 43;

[0049] like Figure 1 and Figure 2As shown, in this embodiment, an implementation scheme is also provided, including a cleaning component 3, the cleaning component 3 includes a mounting rod 31 connected to both ends of one side of the processing chamber 2, a cleaning tube 33 connected to the upper end of the mounting rod 31, and a blower 32 connected to the side of the mounting rod 31 and having a port and a side interface of the cleaning tube 33. A plurality of air outlet slots 301 are evenly arranged on the bottom surface of the cleaning tube 33. By starting the blower 32 for blowing, the air flow acts on the fiber from the plurality of air outlet slots 301 on the bottom surface of the cleaning tube 33. This design can blow off the dust and impurities attached to the fiber, improve the cleanliness of the fiber surface, and avoid affecting the hot stretching treatment.

[0050] like Figures 1 to 6 As shown, in this embodiment, it is also necessary to explain that before the implementation of the application document, a suitable model of a micro DC servo motor and a stepper motor are selected, and the corresponding supporting accessories are installed; this embodiment pre-sets parameters, including speed, angle and direction, etc. This part is a prior art, and the working principle has been disclosed. In addition, it should be noted that this application document only improves the shortcomings of the existing hot stretching machine that will have uneven mixing after heating, resulting in uneven temperature distribution of the hot air entering the air duct, making the fiber fineness uneven, and reducing the overall strength, and does not involve other aspects; the following is an introduction to the working principle of a hot stretching machine and stretching method for the production of antibacterial polymer fibers:

[0051] When the present invention is used:

[0052] First, the antibacterial polymer fiber is pulled from the inlet and outlet slot 201 on one side of the processing chamber 2 to the preheating chamber 203, the hot stretching chamber 204 and the cooling chamber 205, and then led out from the inlet and outlet slot 201 on the other side and connected to the transmission mechanism of the next processing equipment.

[0053] Step 1: Before pulling, start the blower 32 to blow air, so that the air flow acts on the fiber from the several air outlet slots 301 on the bottom surface of the cleaning tube 33. This design can blow off the dust and impurities attached to the fiber, improve the cleanliness of the fiber surface, and avoid affecting the hot drawing process;

[0054] Step 2: After the fiber enters the preheating chamber 203, the micro-clamping cylinders 511 on each upper and lower mounting frame 516 are synchronously started, and the upper and lower preheating clamping covers 512 are driven to move closer to each other by the two micro-clamping cylinders 511, until the auxiliary clamping rollers 515 on both sides clamp the fiber and make the inner walls of the upper and lower electric heating plates 513 fit the fiber surface. Subsequently, the two electric heating plates 513 are started, and the heat generated by the resistance wire in the electric heating plates 513 is used to directly preheat both sides of the fiber segment. Compared with the traditional hot air method, this design allows the fiber to be heated evenly, effectively avoiding uneven temperature distribution of the hot air entering the air duct. In addition, the oil substances adhering to the fiber can be volatilized, avoiding the generation of bubbles during the hot traction process, and effectively improving the plasticity of the fiber, thereby shortening the heating time of the fiber in the mold and significantly improving the production efficiency of the fiber;

[0055] Step 3: After preheating, the fiber section is transferred to the hot drawing chamber 204 through the connecting guide groove 206 and placed inside a pair of heating covers 521. At this time, the next section of fiber continues to be transferred to the preheating chamber 203 and is clamped by the upper and lower auxiliary clamping rollers 515. Then, the micro-clamping cylinder 2 528 at both ends of each T-shaped guide rod 526 is started to drive the clamping frame 529 to move closer to each other to clamp the fiber. Next, the stepper motor is started to drive the reel 524 to roll up the pull rope 520, so that the pull rope 520 pulls the T-shaped guide rod 526 and the clamping frame 529, and the fiber is pulled and stretched to increase its length, so that the fineness and uniformity of the fiber are maintained on the basis of heating by the infrared heating element 522. During the drawing process, the molecular chains of the fiber will be rearranged along the drawing direction, thereby improving the orientation degree and physical properties of the fiber.

[0056] During the stretching process, the guide block 504 on the inner side of each clamping frame 529 is connected with the guide groove 501, and each guide groove 501 is divided into a transverse section 502 and a vertical section 503. This design can limit the position when the fiber is clamped and fixed longitudinally and stretched transversely, thereby effectively avoiding deviation during the stretching process, thereby improving the production quality of the antibacterial polymer fiber.

[0057] Step 4: After the fiber segment is pulled and stretched, it is further transferred to the cooling chamber 205 by the pulling roller 42. At this time, the fiber exchanges heat with the cooling water in the cooling chamber 205 to quickly cool down the fiber segment. At the same time, the heat dissipation fan 41 dissipates heat and cools the clean water in the cooling water tank 43, thereby achieving recycling use.

[0058] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A hot stretching machine for producing antibacterial polymer fibers, comprising a base (1) and a processing chamber (2) arranged at the upper end of the base (1), wherein both sides of the processing chamber (2) are penetrated by inlet and outlet grooves (201); It is characterized in that Also includes: A processing mechanism (5), wherein the processing mechanism (5) comprises a preheating component (51) and a heating mechanism (52); The processing chamber (2) is provided with a preheating chamber (203), a hot stretching chamber (204) and a cooling chamber (205), and a connecting guide groove (206) is provided between the preheating chamber (203), the hot stretching chamber (204) and the cooling chamber (205); The preheating component (51) is arranged in the preheating chamber (203), and the heating mechanism (52) is arranged in the preheating stretching chamber (204).

2. A hot stretching machine for producing antibacterial polymer fibers according to claim 1, characterized in that: The preheating assembly (51) comprises a mounting frame (516) slidably arranged on the inner wall of the preheating chamber (203) up and down, a micro-gripping cylinder (511) vertically connected to each mounting frame (516), a preheating clamping cover (512) connected to the end of the rod body of each micro-gripping cylinder (511), and an electric heating plate (513) connected to each preheating clamping cover (512), both sides of the preheating clamping cover (512) are provided with notches (514), and auxiliary clamping rollers (515) are rotatably arranged in each notch (514), and a pair of micro-DC servo motors are arranged on the side of the upper preheating clamping cover (512), and the main shaft of the micro-DC servo motor is connected to each upper auxiliary clamping roller (515).

3. The hot stretching machine for producing antibacterial polymer fibers according to claim 1, characterized in that: The heating mechanism (52) comprises a heating cover (521) connected up and down to the inner wall of one side of the heat-drawing chamber (204), an infrared heating element (522) connected to the inner wall of each heating cover (521), a base (523) connected up and down to the inner wall of the other side of the heat-drawing chamber (204), a guide channel (525) connected to the lower end of the side of each base (523), a T-shaped guide rod (526) connected to the guide channel (525), and a side guide rod (526) sleeved on the T-shaped guide rod (526). A return spring (527) connected to the side of the guide channel (525), a second micro-gripping cylinder (528) connected to the end of the T-shaped guide rod (526), ​​a clamping frame (529) movably clamped on each heating cover (521) and connected to the rod bodies of the two second micro-gripping cylinders (528), a reel (524) connected to the port of each base (523), and a pull rope (510) wound around each reel (524) and connected at its end to the end of the T-shaped guide rod (526).

4. A hot stretching machine for producing antibacterial polymer fibers according to claim 3, characterized in that: A stepper motor is connected to the side of each base (523), and the motor main shaft of the stepper motor is connected to each reel (524) respectively. A fixed pulley is connected to the end of the guide channel (525), and the pull rope (520) is placed on the fixed pulley.

5. The hot stretching machine for producing antibacterial polymer fibers according to claim 3, characterized in that: Guide grooves (501) are provided on both sides of the exterior of each heating cover (521), and each guide groove (501) is divided into a transverse section (502) and a vertical section (503). A guide block (504) is provided on the inner wall of the clamping frame (529), and the guide block (504) and the guide groove (501) are connected in a matching manner.

6. The hot stretching machine for producing antibacterial polymer fibers according to claim 1, characterized in that: The invention also comprises a cooling component, which comprises a cooling water tank (43) arranged in a cooling chamber (205), a Z-shaped traction roller (42) arranged in the cooling water tank (43), and a heat dissipation fan box (4) arranged on the processing chamber (2); a heat dissipation port (401) is provided on the top surface of the cooling water tank (43); a heat dissipation fan (41) is embedded in the side surface of the heat dissipation fan box (4); and an interface of the heat dissipation fan box (4) passes through the cooling chamber (205) and is connected to the heat dissipation port (401) on the top surface of the cooling water tank (43).

7. The hot stretching machine for producing antibacterial polymer fibers according to claim 1, characterized in that: The cleaning assembly (3) further comprises a cleaning component (3), the cleaning component (3) comprising a mounting rod (31) connected to both ends of one side of the processing chamber (2), a cleaning pipe (33) connected to the upper end of the mounting rod (31), and a blower (32) connected to the side of the mounting rod (31) and having a port connected to an interface on the side of the cleaning pipe (33), wherein a plurality of air outlet slots (301) are evenly arranged on the bottom surface of the cleaning pipe (33).

8. The stretching method of a hot stretching machine for producing antibacterial polymer fibers according to claim 1, comprising the following steps: The first step is to start the blower (32) to blow air, so that the air flow acts on the fibers from the several air outlet slots (301) on the bottom surface of the cleaning tube (33), blows off the dust and impurities attached to the fibers, and then guides the fibers into the preheating chamber (203); Step 2: Synchronously start the micro-gripping cylinders 1 (511) on each of the upper and lower mounting frames (516), and use the two micro-gripping cylinders 1 (511) to drive the upper and lower preheating clamps (512) to move closer to each other until the auxiliary clamping rollers (515) on both sides clamp the fiber and make the inner walls of the upper and lower electric heating plates (513) fit the fiber surface. Then, start the two electric heating plates (513), use the resistance wire in the electric heating plates (513) to generate heat, and preheat both sides of the fiber segment; Step 3: After preheating, the fiber section is transferred to the hot stretching chamber (204) through the connecting guide groove and placed inside a pair of heating covers (521). At this time, the next section of fiber continues to be transferred to the preheating chamber (203) and is clamped by the upper and lower auxiliary clamping rollers (515). Then, the micro clamping cylinders (528) at both ends of each T-shaped guide rod (526) are started to drive the clamping frames (529) to move closer to each other to clamp the fibers. Next, the stepper motor is started to drive the reel (524) to roll up the pull rope (520), so that the pull rope (520) pulls the T-shaped guide rod (526) and the clamping frame (529), and pulls and stretches the fibers. Step 4: After the fiber segment is pulled and stretched, it is further transferred to the cooling chamber (205) by the pulling roller. At this time, the fiber exchanges heat with the cooling water in the cooling chamber (205) to rapidly cool the fiber segment.

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