A drawing and leveling mechanism for a drawing frame

Abstract

This utility model relates to the field of drawing frames and discloses a drawing frame drafting and leveling mechanism, including a mounting plate and a C-shaped bracket. The C-shaped bracket is connected to the top surface of the mounting plate. A bearing seat is disposed on one side of the C-shaped bracket. Multiple bearing seats are connected to the side of the C-shaped bracket and are distributed equidistantly along a straight line. Multiple sets of drafting roller height adjustment structures are disposed on the side of the C-shaped bracket. The drafting roller height adjustment structure includes a drafting roller and a screw height adjustment assembly. The screw height adjustment assembly is located on the side of the C-shaped bracket connected to the bearing seat and between the bearing seat and the mounting plate. The drafting roller is inside the C-shaped bracket. A dust collection box is disposed inside the C-shaped bracket and is snapped into the C-shaped bracket. Multiple sets of movable partition structures are disposed at the opening end of the dust collection box. This allows for flexible adaptation to the drafting requirements of different materials and different count fibers. By dynamically adjusting the number and parameters of the holding components, the fine and even requirements of high-count yarns can be met.

Description

Technical Field

[0001] This utility model relates to the field of drawing frames, specifically a drawing frame drafting and leveling mechanism. Background Technology

[0002] In the drawing process of the textile industry, the drafting and leveling mechanism is the core equipment that determines the quality of sliver maturation and ensures the stability of subsequent spinning. Its core function is to achieve uniform stretching and combing of fiber bundles through the synergistic action of rollers and rubber rollers.

[0003] Existing drawing frames typically use a fixed number of drafting rollers, such as a conventional 3-roller or 4-roller structure. However, in actual production, the required number of rollers varies significantly depending on the specific application. For instance, when spinning coarse-count pure cotton yarn, a 3-roller structure is sufficient to meet basic drafting requirements. But when spinning high-count combed cotton yarn or ultra-fine denier synthetic fiber yarn, it is necessary to increase the number of rollers to subdivide the drafting zone and reduce the drafting ratio in each zone to avoid fiber damage. Furthermore, when processing raw materials with high short fiber content, a multi-roller, multi-nip structure is required to enhance short fiber control and prevent evenness fluctuations caused by floating fibers. Fixed structures cannot meet the demands of small-batch, multi-order production, limiting production flexibility. Therefore, we propose a drafting and leveling mechanism for drawing frames. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a drafting and leveling mechanism for a drawing frame, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a drawing and leveling mechanism for a drawing frame, comprising a mounting plate and a C-shaped bracket, wherein the C-shaped bracket is connected to the top surface of the mounting plate, and the outer side of the middle side of the C-shaped bracket is fixedly connected to the mounting plate; A bearing seat is provided on one side of the C-shaped bracket. One side of the bearing seat is fixedly connected to the C-shaped bracket. Multiple bearing seats are connected to the side of the C-shaped bracket, which are equidistant along a straight line. All bearing seats are located at the end of the C-shaped bracket away from the mounting plate. Multiple sets of drawing roller height adjustment structures are provided on the side of the C-shaped bracket. The drawing roller height adjustment structure is located on the side of the C-shaped bracket that connects to the bearing seat. The drawing roller height adjustment structure is located between the bearing seat and the mounting plate. Each bearing seat corresponds to one set of drawing roller height adjustment structures. The drawing roller height adjustment structure includes a drawing roller and a lead screw height adjustment assembly. The lead screw height adjustment assembly is located on the side of the C-shaped bracket connected to the bearing seat and between the bearing seat and the mounting plate. The drawing roller is inside the C-shaped bracket and is mounted on the lead screw height adjustment assembly. The dust collection box is installed inside the C-shaped bracket and is snapped into the C-shaped bracket. The dust collection box is located on the side of the drawing roller away from the bearing seat. Multiple sets of movable partition structures are provided at the opening end of the dust collection box, and the multiple sets of movable partition structures correspond to the drawing rollers.

[0006] Preferably, multiple strip-shaped holes are provided on both sides of the C-shaped bracket, and the strip-shaped holes correspond to the bearing seat.

[0007] Preferably, the lead screw height adjustment assembly includes a support block one and a support block two. Both sides of the support block one are provided with square grooves one, and multiple support blocks one are engaged in the strip hole on the side of the C-shaped bracket connected to the bearing seat. The support blocks one are slidably engaged with the strip hole. Both sides of the support block two are provided with square grooves two, and multiple support blocks two are engaged in the strip hole on the other side of the C-shaped bracket. The support blocks two are slidably engaged with the strip hole.

[0008] Preferably, one end of the drawing roller is rotatably connected to one side of the support block 1 within the C-shaped bracket, and the other end of the drawing roller passes through the support block 2 and is rotatably connected to the support block 2. One end of the drawing roller passing through the support block 2 is connected to a motor 2, and the mounting surface of the output shaft of the motor 2 is fixedly connected to the side of the support block 2 opposite to the support block 1. The output shaft of the motor 2 is fixedly connected to the drawing roller.

[0009] Preferably, the lead screw height adjustment assembly further includes a motor, a lead screw, and a slider. The bottom surface of the main body of the motor is fixedly connected to the side of the mounting plate connected to the C-shaped bracket. One end of the output shaft of the motor faces the bearing seat, and a lead screw is fixedly connected to one end of the output shaft of the motor. The other end of the lead screw is rotatably connected to the bearing seat. One side of the slider has a threaded hole, and the slider is sleeved on the lead screw and threadedly connected to the lead screw. The side of the slider opposite to the support block is fixedly connected to the support block.

[0010] Preferably, multiple rubber rollers are connected between the inner walls of the two sides of the C-shaped bracket. The two ends of the rubber rollers are rotatably connected to the two side walls of the C-shaped bracket. The rubber rollers are located on the side of the drawing rollers away from the mounting plate, and each drawing roller corresponds to one rubber roller.

[0011] Preferably, the C-shaped bracket is fixedly connected to the side opposite to the cylindrical surface of the drawing roller with multiple strip grooves distributed at equal intervals along a straight line. The strip grooves correspond to the transmission direction of the drawing roller. The dust collection box has multiple sliding strips distributed at equal intervals along a straight line on the side opposite to the opening. The sliding strips correspond to the strip grooves and are slidably engaged with the strip grooves. The opening end of the dust collection box is opposite to the drawing roller.

[0012] Preferably, the dust collection box has multiple partition grooves equidistantly distributed along a straight line on both sides opposite to the two ends of the drawing roller. The partition grooves correspond to the drawing rollers. The dust collection box has a slot at one end with the partition grooves, which corresponds to the partition grooves and penetrates through the partition grooves.

[0013] Preferably, the movable partition structure includes partitions and springs. One side of the partition is fixedly connected to multiple evenly distributed springs. One end of the multiple partitions connected to the springs is inserted into the slot, and the other end of the springs is fixedly connected to the side opposite to the slot opening.

[0014] Compared with the prior art, this utility model provides a drafting and leveling mechanism for a drawing frame, which has the following beneficial effects: The drafting and leveling mechanism of this drawing frame can flexibly adapt to the drafting requirements of different materials and fiber counts. By dynamically adjusting the number and parameters of the gripping components, it can ensure the basic drafting quality of coarse yarns and meet the fine and leveling requirements of high-count yarns. It effectively improves the equipment's responsiveness to multi-variety, small-batch production orders. At the same time, the integrated sealed dust collection structure can reduce impurity interference, reduce maintenance frequency, and balance production flexibility and operational stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the drafting roller height adjustment structure of this utility model; Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0016] In the diagram: 1. Mounting plate; 2. C-shaped bracket; 3. Drafting roller; 4. Rubber roller; 5. Dust collection box; 6. Sliding bar; 7. Bearing seat; 8. Motor 1; 9. Lead screw; 10. Sliding block; 11. Support block 1; 12. Strip hole; 13. Strip groove; 14. Support block 2; 15. Motor 2; 16. Partition groove; 17. Slot; 18. Partition; 19. Spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 A drawing and leveling mechanism for a drawing frame includes a mounting plate 1 and a C-shaped bracket 2. The C-shaped bracket 2 is connected to the top surface of the mounting plate 1, and the outer side of the middle side of the C-shaped bracket 2 is fixedly connected to the mounting plate 1. The bearing seat 7 is set on one side of the C-shaped bracket 2. One side of the bearing seat 7 is fixedly connected to the C-shaped bracket 2. Multiple bearing seats 7 are connected to the side of the C-shaped bracket 2, which are distributed at equal intervals along a straight line. All bearing seats 7 are at the end of the C-shaped bracket 2 away from the mounting plate 1. Multiple sets of drawing roller height adjustment structures are set on the side of the C-shaped bracket 2. The drawing roller height adjustment structure is located on the side of the C-shaped bracket 2 that connects to the bearing seat 7. The drawing roller height adjustment structure is located between the bearing seat 7 and the mounting plate 1. Each bearing seat 7 corresponds to one set of drawing roller height adjustment structures. The drawing roller height adjustment structure includes a drawing roller 3 and a screw height adjustment assembly. The screw height adjustment assembly is located on the side of the C-shaped bracket 2 connected to the bearing seat 7 and between the bearing seat 7 and the mounting plate 1. The drawing roller 3 is inside the C-shaped bracket 2 and is mounted on the screw height adjustment assembly. The dust collection box 5 is installed inside the C-shaped bracket 2. The dust collection box 5 is snapped into the C-shaped bracket 2. The dust collection box 5 is on the side of the drawing roller 3 away from the bearing seat 7. Multiple sets of movable partition structures are installed at the opening end of the dust collection box 5, and these multiple sets of movable partition structures correspond to the drawing roller 3.

[0019] Furthermore, multiple strip holes 12 are provided on both sides of the C-shaped bracket 2, which are equidistantly distributed along a straight line. The strip holes 12 correspond to the bearing seat 7 and are used to install the lead screw height adjustment assembly.

[0020] Furthermore, the lead screw height adjustment assembly includes support block one 11 and support block two 14. Both sides of support block one 11 are provided with square groove one. Multiple support blocks one 11 are engaged in the slot 12 on the side of the C-shaped bracket 2 connected to the bearing seat 7. Support blocks one 11 are slidably engaged with slot 12. Both sides of support block two 14 are provided with square groove two. Multiple support blocks two 14 are engaged in the slot 12 on the other side of the C-shaped bracket 2. Support blocks two 14 are slidably engaged with slot 12. Support blocks one 11 and support blocks two 14 are used to install the drawing roller 3. Support blocks one 11 and support blocks two 14 slide in the slot 12.

[0021] Furthermore, one end of the drawing roller 3 is rotatably connected to one side of the support block 11 within the C-shaped bracket 2, and the other end of the drawing roller 3 passes through the support block 2 14 and is rotatably connected to the support block 2 14. The end of the drawing roller 3 passing through the support block 2 14 is connected to the motor 2 15. The mounting surface of the output shaft of the motor 2 15 is fixedly connected to the side of the support block 2 14 opposite to the support block 11. The output shaft of the motor 2 15 is fixedly connected to the drawing roller 3. The drawing roller 3 rotates on the support block 11 and the support block 2 14. The motor 2 15 is used to drive the drawing roller 3 to rotate, and the speed of the motor 2 15 is adjustable.

[0022] Furthermore, the lead screw height adjustment assembly also includes a motor 8, a lead screw 9, and a slider 10. The bottom surface of the main body of the motor 8 is fixedly connected to one side of the C-shaped bracket 2 connected to the mounting plate 1. One end of the output shaft of the motor 8 faces the bearing seat 7, and the lead screw 9 is fixedly connected to one end of the output shaft of the motor 8. The other end of the lead screw 9 is rotatably connected to the bearing seat 7. A threaded hole is opened through one side of the slider 10. The slider 10 is sleeved on the lead screw 9 and threadedly connected to the lead screw 9. The side of the slider 10 opposite to the support block 11 is fixedly connected to the support block 11. The motor 8 is used to drive the lead screw 9 to rotate. When the lead screw 9 rotates, the slider 10 slides on the lead screw 9. The slider 10 drives the support block 11 to slide, thereby driving the drafting roller 3 to move up and down.

[0023] Furthermore, multiple rubber rollers 4 are connected between the inner walls of both sides of the C-shaped bracket 2. The two ends of the rubber rollers 4 are rotatably connected to the two side walls of the C-shaped bracket 2. The rubber rollers 4 are on the side of the drawing roller 3 away from the mounting plate 1. Each drawing roller 3 corresponds to one rubber roller 4. The rubber rollers 4 are used to stabilize the sliver with the drawing roller 3 and adjust the distance between the drawing roller 3 and the rubber rollers 4. This is suitable for different types of slivers. In addition, the number of drawing rollers 3 required is different for different types of slivers. The lifting and lowering of the drawing rollers 3 can be controlled to start different numbers of drawing rollers 3, and the rotation speed of the drawing rollers 3 can be controlled at the same time.

[0024] Furthermore, the side of the C-shaped bracket 2 opposite to the cylindrical surface of the drawing roller 3 is fixedly connected with multiple strip grooves 13 distributed equidistantly along a straight line. The strip grooves 13 correspond to the transmission direction of the drawing roller 3. The side of the dust collection box 5 away from the opening is provided with multiple slide bars 6 distributed equidistantly along a straight line. The slide bars 6 correspond to the strip grooves 13 and slide the slide bars 6 into a sliding engagement with the strip grooves 13. The opening end of the dust collection box 5 is opposite to the drawing roller 3. The strip grooves 13 and slide bars 6 are used to make the dust collection box 5 slide within the C-shaped bracket 2, and the dust collection box 5 collects debris within the C-shaped bracket 2.

[0025] Furthermore, the dust collection box 5 has multiple partition grooves 16 evenly distributed along a straight line on both sides opposite to the two ends of the drawing roller 3. The partition grooves 16 correspond to the drawing roller 3. The dust collection box 5 has a slot 17 at one end where the partition grooves 16 are provided. The slot 17 corresponds to the partition grooves 16 and passes through the partition grooves 16. The partition grooves 16 are used to place the drawing roller 3. When the drawing roller 3 descends, it is placed in the partition grooves 16. The slot 17 is used to install the movable partition structure.

[0026] Furthermore, the movable partition structure includes a partition 18 and a spring 19. One side of the partition 18 is fixedly connected to multiple evenly distributed springs 19. One end of the multiple partitions 18 connected to the springs 19 is inserted into the slot 17. The other end of the springs 19 is fixedly connected to the side opposite to the opening of the slot 17. The partition 18 is used to fill the side wall of the dust collection box 5. The elasticity of the springs 19 causes the partition 18 to extend out of the springs 19 and fit against the support block 11 or the support block 2 14. The partition 18 moves up and down in the slot 17 with the stretching roller 3.

[0027] Structural Description: Mounting plate 1: It is a rectangular flat plate and serves as the basic support for the whole machine. It is used to fix components such as C-shaped bracket 2 and motor 8 to ensure the overall stability of the mechanism. C-shaped bracket 2: It has a "C" shaped frame structure and serves as the main frame of the drafting system. It is used to install core components such as drafting roller 3, rubber roller 4, and bearing seat 7, and to provide drafting working space. Drafting roller 3: A cylindrical metal roller that serves as the active transmission component. It rotates under the drive of motor 15 and forms a gripping jaw with rubber roller 4. The difference in rotation speed is used to achieve uniform stretching of the sliver. 4: A cylindrical elastic roller that serves as an auxiliary gripper. It fits elastically against the drafting roller 3 to enhance the gripping force of the sliver and prevent fiber slippage. Dust collection box 5: A rectangular box with an opening at the top, used as a collection component to collect short fibers and debris generated during stretching, making it easy to clean; Sliding strip 6: It has a long, raised structure and serves as a sliding fitment. It fits with the strip groove 13 of the C-shaped bracket 2 to realize the sliding installation and position adjustment of the dust collection box 5. Bearing housing 7: It has a block structure and serves as a rotating support component. It fixes the top of the lead screw 9 and provides rotational support to ensure the operating accuracy of the lead screw height adjustment component. Motor 8: The square motor body serves as the lifting power source, driving the lead screw 9 to rotate and thus adjusting the height of the drafting roller 3; Lead screw 9: A cylindrical threaded long rod that serves as a motion conversion component, converting the rotational motion of motor 8 into the linear motion of slider 10, thereby driving the drafting roller 3 to rise and fall. Slider 10: It has a block-shaped structure with threaded holes and serves as a transmission connector. It is threadedly engaged with the lead screw 9. When sliding, it pulls the support block 11 to drive the stretching roller 3 to move. Support block 11: It has a block-shaped structure with a square groove. It serves as a support for the roller installation and installs one end of the stretching roller 3. It slides in the strip hole 12 to adjust the roller height. Strip-shaped hole 12: It is a long strip-shaped through hole, which serves as a sliding track to guide support block 11 and support block 2 14, and restricts the direction of movement to ensure stable lifting and lowering; Strip groove 13: It is a long strip-shaped groove that serves as a sliding guide and cooperates with the slide bar 6 of the dust collection box 5 to ensure accurate adjustment of the position of the dust collection box 5; Support block 2 14: It has a block-shaped structure with through holes. It serves as a support for the roller installation and installs the other end of the drafting roller 3. It slides synchronously with support block 1 11 to ensure the horizontal rotation of the roller. Motor 215: A square motor that serves as a rotational power source, directly driving the drafting roller 3 to rotate. The speed can be adjusted via PLC to match the drafting requirements. Partition groove 16: It is an arc-shaped or square groove, which serves as a receiving groove to accommodate the end of the stretching roller 3 when it is not in use, thus avoiding interference with the dust collection box 5; Slot 17: It is a long, narrow slot that serves as a sliding space for installation, providing a channel for the installation and sliding of the partition 18, allowing the partition to move with the roller. Partition 18: It is a long strip plate that serves as a sealing and gap-filling component to fill the gap in the dust collection box 5 and prevent debris from leaking out. It maintains a seal as the stretching roller 3 rises and falls. Spring 19: A spiral elastic element that provides elastic force to the partition 18, pushing it to fit against the support block to ensure the sealing effect of the dust collection box 5.

[0028] Working Principle: During the sliver feeding stage, a capacitive sensor mounted on the C-shaped bracket 2 detects the sliver cross-sectional thickness in real time, converting the thickness signal into an electrical signal and transmitting it to the PLC control module mounted on the C-shaped bracket 2. The PLC analyzes the signal according to preset process parameters, such as fiber type and target sliver quantity. If the sliver is detected to be too thick, it determines that the drafting ratio needs to be increased; if the sliver is too thin, the drafting ratio needs to be decreased. At the same time, it identifies the sliver material characteristics and determines the required number and speed parameters of the drafting rollers 3. For roller quantity matching, the PLC sends a command to motor 8 of the corresponding group of drafting roller height adjustment structure. Motor 8 drives the lead screw 9 to rotate, which drives the slider 10 to slide along the lead screw through thread transmission, thereby pulling the support block 11 to move upward in the strip hole 12, and simultaneously driving the support block 2 14 to slide, so that the drafting rollers 3 rise to the working position of being in contact with the rubber roller 4. The drafting rollers 3 that do not need to be used remain in the descending state and are embedded in the partition groove 16 of the dust collection box 5. At this time, the spring 19 of the movable partition structure pushes the partition. 18 extends to fill the side wall of dust collection box 5, ensuring sealed dust collection. During the drafting parameter adjustment stage, the PLC sends a speed command to motor 15 based on the detected deviation. When drafting needs to be increased, the speed of motor 15 of the front drafting roller 3 is increased or the speed of the rear roller is decreased, amplifying the drafting ratio through the speed difference between the rollers. When drafting needs to be decreased, the opposite adjustment is made. Motor 15 drives the drafting roller 3 to rotate, forming a gripping jaw with the rubber roller 4. The sliver is stably clamped and stretched under the friction of the jaw, achieving uniformity. If different... When changing fibers, such as pure cotton to chemical fibers, the PLC can simultaneously control multiple sets of motors 8 to precisely adjust the distance between the drafting roller 3 and the rubber roller 4, ensuring that the gripping force matches the fiber characteristics. During the drafting process, the dust collection box 5 slides and engages with the strip groove 13 of the C-shaped bracket 2 through the slide bar 6, making it easy to remove the dust collection box 5. The movable partition 18 moves synchronously in the slot 17 with the rise and fall of the drafting roller 3, always in contact with the support block to prevent debris from leaking out. When the detection sensor reports that the uniformity of the sliver meets the standard, the PLC maintains the current parameters and operates stably.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drafting and leveling mechanism for a drawing frame, characterized in that, It includes a mounting plate (1) and a C-shaped bracket (2). The C-shaped bracket (2) is connected to the top surface of the mounting plate (1). The outer side of the middle side of the C-shaped bracket (2) is fixedly connected to the mounting plate (1). A bearing seat (7) is provided on one side of the C-shaped bracket (2). One side of the bearing seat (7) is fixedly connected to the C-shaped bracket (2). Multiple bearing seats (7) are connected to the side of the C-shaped bracket (2) and are distributed at equal intervals along a straight line. All bearing seats (7) are located at the end of the C-shaped bracket (2) away from the mounting plate (1). Multiple sets of drawing roller height adjustment structures are provided on the side of the C-shaped bracket (2). The drawing roller height adjustment structure is located on the side of the C-shaped bracket (2) that connects to the bearing seat (7). The drawing roller height adjustment structure is located between the bearing seat (7) and the mounting plate (1). Each bearing seat (7) corresponds to a set of drawing roller height adjustment structures. The drawing roller height adjustment structure includes a drawing roller (3) and a screw height adjustment assembly. The screw height adjustment assembly is located on the side of the C-shaped bracket (2) connected to the bearing seat (7) and between the bearing seat (7) and the mounting plate (1). The drawing roller (3) is inside the C-shaped bracket (2) and is mounted on the screw height adjustment assembly. The dust collection box (5) is installed inside the C-shaped bracket (2), and the dust collection box (5) is snapped into the C-shaped bracket (2). The dust collection box (5) is on the side of the stretching roller (3) away from the bearing seat (7). Multiple sets of movable partition structures are provided at the opening end of the dust collection box (5), and the multiple sets of movable partition structures correspond to the stretching roller (3).

2. The drafting and leveling mechanism for a drawing frame according to claim 1, characterized in that, The C-shaped bracket (2) has multiple strip holes (12) that are equidistantly distributed along a straight line on both sides, and the strip holes (12) correspond to the bearing seat (7).

3. The drafting and leveling mechanism for a drawing frame according to claim 2, characterized in that, The lead screw height adjustment assembly includes a support block one (11) and a support block two (14). Both sides of the support block one (11) are provided with square grooves one. Multiple support blocks one (11) are engaged in the strip hole (12) on the side of the C-shaped bracket (2) connected to the bearing seat (7). The support blocks one (11) are slidably engaged with the strip hole (12). Both sides of the support block two (14) are provided with square grooves two. Multiple support blocks two (14) are engaged in the strip hole (12) on the other side of the C-shaped bracket (2). The support blocks two (14) are slidably engaged with the strip hole (12).

4. The drafting and leveling mechanism for a drawing frame according to claim 3, characterized in that, One end of the drawing roller (3) is rotatably connected to one side of the support block (11) inside the C-shaped bracket (2). The other end of the drawing roller (3) passes through the support block (14) and is rotatably connected to the support block (14). One end of the drawing roller (3) passing through the support block (14) is connected to the motor (15). The mounting surface of the output shaft of the motor (15) is fixedly connected to the side of the support block (14) away from the support block (11). The output shaft of the motor (15) is fixedly connected to the drawing roller (3).

5. The drafting and leveling mechanism for a drawing frame according to claim 3, characterized in that, The lead screw height adjustment assembly also includes a motor (8), a lead screw (9), and a slider (10). The bottom surface of the main body of the motor (8) is fixedly connected to one side of the C-shaped bracket (2) of the mounting plate (1). One end of the output shaft of the motor (8) faces the bearing seat (7). One end of the output shaft of the motor (8) is fixedly connected to the lead screw (9). The other end of the lead screw (9) is rotatably connected to the bearing seat (7). One side of the slider (10) has a threaded hole. The slider (10) is sleeved on the lead screw (9) and threadedly connected to the lead screw (9). The side of the slider (10) opposite to the support block (11) is fixedly connected to the support block (11).

6. The drafting and leveling mechanism for a drawing frame according to claim 1, characterized in that, Multiple rubber rollers (4) are connected between the inner walls of both sides of the C-shaped bracket (2). The two ends of the rubber rollers (4) are rotatably connected to the two side walls of the C-shaped bracket (2). The rubber rollers (4) are on the side of the stretching rollers (3) away from the mounting plate (1). Each stretching roller (3) corresponds to one rubber roller (4).

7. The drafting and leveling mechanism for a drawing frame according to claim 1, characterized in that, The C-shaped bracket (2) is fixedly connected to the side opposite to the cylindrical surface of the drawing roller (3) with multiple strip grooves (13) distributed equidistantly along a straight line. The strip grooves (13) correspond to the transmission direction of the drawing roller (3). The dust collection box (5) is provided with multiple slide bars (6) distributed equidistantly along a straight line on the side away from the opening. The slide bars (6) correspond to the strip grooves (13) and slide and engage with the strip grooves (13). The opening end of the dust collection box (5) is opposite to the drawing roller (3).

8. The drafting and leveling mechanism for a drawing frame according to claim 1, characterized in that, The dust collection box (5) has multiple partition grooves (16) that are equidistantly distributed along a straight line on both sides opposite to the two ends of the drawing roller (3). The partition grooves (16) correspond to the drawing roller (3). The dust collection box (5) has a slot (17) at one end where the partition grooves (16) are provided. The slot (17) corresponds to the partition grooves (16) and passes through the partition grooves (16).

9. A drawing frame drafting and leveling mechanism according to claim 8, characterized in that, The movable partition structure includes a partition (18) and a spring (19). One side of the partition (18) is fixedly connected to multiple evenly distributed springs (19). One end of the multiple partitions (18) connected to the springs (19) is inserted into the slot (17). The other end of the springs (19) is fixedly connected to the side opposite to the opening of the slot (17).

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