Novel drawing frame roller drafting structure

Abstract

The utility model discloses a novel drawing frame roller drafting structure, and relates to the technical field of drawing frames, the novel drawing frame roller drafting structure comprises a stepping motor, the bottom of the stepping motor is provided with a first speed reducer; a novel drawing frame roller drafting structure is characterized in that firstly, the distance between a front roller and a middle roller and the distance between the front roller and a rear roller are adjusted, a fastening screw in a screw hole is loosened, the distance is measured through a caliper, a first speed reducer is slowly moved, a sliding block slides along the outer side of a linear guide rail, the distance is accurate to millimeter, and after the distance is adjusted, the fastening screw is locked, and the sliding block is locked; operation is convenient, time and labor are saved, long fibers or short fibers can be manufactured according to product requirements, the pressing claw and the rubber pressing roller are accessories on a twisting machine cradle and do not need to be manufactured again, the pressing claw and the rubber pressing roller can be used universally, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of drawing frames, in particular to a novel roller drafting structure of a drawing frame. Background Art

[0002] The function of the drawing frame is to improve the internal structure of the sliver, thereby improving the uniformity of its long segments, while reducing the weight unevenness, making the fibers in the sliver straight and parallel, reducing hooks, and making the fineness meet the requirements. It makes the raw materials of different types or qualities mix evenly to achieve the specified mixing ratio. The drawing frame is divided into two categories according to the drafting mechanism: roller drafting drawing frame and gill combing machine;

[0003] The existing traditional drawing frame has a complex structure, numerous parts and is difficult to install. Due to the transmission structure, the traditional drawing frame can only produce long fibers and a small yarn range. Therefore, the utility model proposes a novel roller drafting structure for the drawing frame. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a novel roller drafting structure for a drawing frame, which solves the problems in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a novel drawing frame roller drafting structure, including a stepping motor, a first reducer is arranged at the bottom of the stepping motor, a rear roller is connected to the middle of the first reducer, a connecting frame 1 is arranged on the outer side of the first reducer, a first cylinder and a second cylinder are respectively installed on both sides of the connecting frame 1, a second reducer is arranged on one side of the stepping motor, a connecting frame 2 and a transmission rod are arranged on the outer side of the second reducer, a third cylinder is installed on one side of the connecting frame 2, the output ends of the third cylinder, the second cylinder and the first cylinder are all connected to pressure claws, a rubber pressure roller is connected to the middle of the pressure claw, a front roller is connected to the middle of the second reducer, a middle roller is arranged in the middle of the connecting frame 1, and a synchronous belt is arranged between the middle roller and the rear roller;

[0006] A slider is arranged at the bottom of the first reducer, a linear guide is arranged in the middle of the slider, a support frame is arranged at the bottom of the linear guide, a screw hole is opened on the outer side of the slider, and a set screw is arranged inside the screw hole.

[0007] As a further technical solution of the utility model, the output end of the stepper motor is connected to the input end of the first reducer, the first reducer and the second reducer are both double-output shaft reducers, the output end of the first reducer is fixedly connected to the rear roller, and the number of the rear rollers is two groups and is symmetrically distributed.

[0008] As a further technical solution of the utility model, the connecting frame 1 is fixedly connected to the first reducer by bolts, the first cylinder and the second cylinder are fixedly connected to the connecting frame 1 by bolts, the connecting frame 2 is fixedly connected to the second reducer, and the third cylinder is fixedly connected to the connecting frame 2.

[0009] As a further technical solution of the utility model, the number of the pressure claws is several groups and distributed in an array, the rubber pressure roller and the pressure claws are rotationally connected, the middle roller and the rear roller are transmission connected through a synchronous belt, and the number of the middle rollers is equal to the number of the rear rollers.

[0010] As a further technical solution of the utility model, the front roller is fixedly connected with the output end of the second reducer, the number of the front rollers is two groups and they are symmetrically distributed, a servo motor is provided at the end of the transmission rod, and a conveyor belt is installed on the middle roller and the rubber pressure roller near the bottom of the second cylinder.

[0011] As a further technical solution of the utility model, the number of the sliders is four groups and distributed in an array, the sliders are fixedly connected to the first reducer, the linear guide rails are fixedly connected to the support frame, the number of the linear guide rails is two groups and distributed symmetrically, the number of the screw holes is equal to the number of the sliders, and the screw holes are adapted to the set screws, and the ends of the set screws are in contact with the linear guide rails.

[0012] The utility model provides a novel roller drafting structure for a drawing frame. Compared with the prior art, it has the following beneficial effects:

[0013] A new type of roller drafting structure of a drawing frame, wherein the wool strip enters from the upper end of the rear roller, passes through the middle roller and the front roller, and then starts the first cylinder, the second cylinder and the third cylinder, further driving the corresponding pressing claws and the rubber pressure roller to descend, and the wool strip is pressed by the rubber pressure roller, and the rear roller is driven to rotate by a stepper motor, and the synchronous belt and the middle roller are driven to rotate at the same time, and then the transmission rod is driven to rotate by a servo motor, and further the front roller outside the second reducer is driven to rotate, and the rotation speed has a certain ratio. During the wool strip input process, the wool strip is straightened and tightened, and then sent out from the front roller.

[0014] According to the product requirements, whether it is long fiber or short fiber, first adjust the distance between the front roller, the middle roller and the rear roller, loosen the set screw inside the screw hole, measure the distance with a caliper, and slowly move the first reducer to make the slider slide along the outside of the linear guide. The sliding is very convenient and the distance is accurate to millimeters. After adjusting the distance, tighten the set screw so that the set screw contacts the linear guide and locks the slider. The operation is convenient and saves time and effort.

[0015] The pressure claws and rubber pressure rollers are accessories on the cradle of the twisting machine and do not need to be remade. They can be used interchangeably for both machines, saving costs. This set of structures uses much fewer parts than traditional structures. The first reducer, second reducer, linear guide, first cylinder, second cylinder, third cylinder, pressure claws and rubber pressure rollers are all purchased parts with guaranteed accuracy and a reference for installation, making assembly faster and better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a new type of roller drafting structure of a draw frame;

[0017] Figure 2 It is a partial side view of a new type of roller drafting structure of a draw frame;

[0018] Figure 3 Another perspective view of a new type of draw frame roller drafting structure;

[0019] Figure 4 It is a partial disassembled diagram of a new type of roller drafting structure of a draw frame;

[0020] Figure 5 A new type of roller drafting structure for draw frame Figure 4 A is an enlarged view of the middle image.

[0021] In the figure: 1. stepper motor; 2. first reducer; 3. rear roller; 4. connecting frame 1; 5. first cylinder; 6. second cylinder; 7. second reducer; 8. connecting frame 2; 9. third cylinder; 10. pressure claw; 11. rubber pressure roller; 12. middle roller; 13. synchronous belt; 14. front roller; 15. transmission rod; 16. slider; 17. linear guide; 18. set screw; 19. screw hole; 20. support frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5The utility model provides a new technical solution for the roller drafting structure of a drawing frame: a new roller drafting structure of a drawing frame, comprising a stepper motor 1, a first reducer 2 is arranged at the bottom of the stepper motor 1, a rear roller 3 is connected to the middle of the first reducer 2, a connecting frame 4 is arranged on the outside of the first reducer 2, a first cylinder 5 and a second cylinder 6 are respectively installed on both sides of the connecting frame 4, a second reducer 7 is arranged on one side of the stepper motor 1, a connecting frame 2 8 and a transmission rod 15 are arranged on the outside of the second reducer 7, a third cylinder 9 is installed on one side of the connecting frame 2 8, and the output ends of the third cylinder 9, the second cylinder 6 and the first cylinder 5 are all connected with a pressure claw 10, a rubber pressure roller 11 is connected to the middle of the pressure claw 10, a front roller 14 is connected to the middle of the second reducer 7, a middle roller 12 is arranged in the middle of the connecting frame 4, and a synchronous belt 13 is arranged between the middle roller 12 and the rear roller 3;

[0024] Among them, a slider 16 is arranged at the bottom of the first reducer 2, a linear guide 17 is arranged in the middle of the slider 16, a support frame 20 is arranged at the bottom of the linear guide 17, a screw hole 19 is opened on the outer side of the slider 16, and a set screw 18 is arranged inside the screw hole 19.

[0025] See also Figure 1-5 The output end of the stepper motor 1 is connected to the input end of the first reducer 2. The first reducer 2 and the second reducer 7 are both double-output shaft reducers. The output end of the first reducer 2 is fixedly connected to the rear roller 3. The number of rear rollers 3 is two groups and they are symmetrically distributed, which is conducive to driving the rear roller 3 to rotate.

[0026] See also Figure 1-5 The connecting frame 1 4 is fixedly connected to the first reducer 2 by bolts, the first cylinder 5 and the second cylinder 6 are fixedly connected to the connecting frame 1 4 by bolts, the connecting frame 2 8 is fixedly connected to the second reducer 7, and the third cylinder 9 is fixedly connected to the connecting frame 2 8, which is conducive to driving the six groups of pressure claws 10 and the rubber pressure roller 11 to descend and squeeze the corresponding rear roller 3, middle roller 12 and front roller 14.

[0027] See also Figure 1-5 The number of the pressing claws 10 is several groups and is distributed in an array. The rubber pressure roller 11 is rotationally connected to the pressing claw 10. The middle roller 12 is transmission-connected to the rear roller 3 through a synchronous belt 13. The number of the middle rollers 12 is equal to the number of the rear rollers 3. The front rollers 14 are fixedly connected to the output end of the second reducer 7. The number of the front rollers 14 is two groups and is symmetrically distributed. A servo motor is provided at the end of the transmission rod 15. Conveyor belts are installed at the middle roller 12 and the rubber pressure roller 11 near the bottom of the second cylinder 6, which is conducive to driving the middle roller 12 to rotate and conveniently transmitting the long fibers or short fibers that need to be processed.

[0028] See also Figure 1-5 The number of sliders 16 is four groups and they are distributed in an array. The sliders 16 are fixedly connected to the first reducer 2, the linear guides 17 are fixedly connected to the support frame 20, the number of linear guides 17 is two groups and they are symmetrically distributed, the number of screw holes 19 is equal to the number of sliders 16, and the screw holes 19 are adapted to the set screws 18, and the end of the set screws 18 is in contact with the linear guide 17, which is conducive to driving the slider 16 at the bottom of the first reducer 2 to slide with the linear guide 17, and then adjusting the distance between the middle roller 12 and the front roller 14, so as to facilitate the production of long fibers or short fibers.

[0029] The working principle of the utility model is as follows: the wool strip enters from the upper end of the rear roller 3, passes through the middle roller 12 and the front roller 14, and then the first cylinder 5, the second cylinder 6 and the third cylinder 9 are started, and the corresponding pressing claws 10 and the rubber pressure roller 11 are further driven to descend, and the wool strip is pressed by the rubber pressure roller 11, and the rear roller 3 is driven to rotate by the stepper motor 1, and the synchronous belt 13 and the middle roller 12 are driven to rotate at the same time, and then the transmission rod 15 is driven to rotate by the servo motor, and the front roller 14 outside the second reducer 7 is further driven to rotate, and the rotation speed has a certain ratio. During the wool strip input process, the wool strip is straightened and tightened, and then sent out from the front roller 14.

[0030] According to whether the product requires long fibers or short fibers, first adjust the distance between the front roller 14 and the middle roller 12 and the rear roller 3, loosen the set screw 18 inside the screw hole 19, measure the distance with a caliper, and slowly move the first reducer 2 so that the slider 16 slides along the outside of the linear guide 17. The sliding is very convenient and the distance is accurate to millimeters. After adjusting the distance, lock the set screw 18 so that the set screw 18 contacts the linear guide 17 and locks the slider 16. The operation is convenient and saves time and effort.

[0031] It should be noted that the pressure claw 10 and the rubber pressure roller 11 are accessories on the cradle of the twisting machine and do not need to be remade. The two machines can be used interchangeably, which saves costs. The parts used in this set of structures are much fewer than those in the traditional structure. The first reducer 2, the second reducer 7, the linear guide 17, the first cylinder 5, the second cylinder 6, the third cylinder 9, the pressure claw 10 and the rubber pressure roller 11 are all purchased parts. The accuracy is guaranteed, there is a benchmark for installation, and the assembly is faster and better.

Claims

1. A new type of roller drafting structure for a drawing frame, characterized in that: The invention comprises a stepping motor (1), wherein a first reducer (2) is arranged at the bottom of the stepping motor (1), a rear roller (3) is connected to the middle of the first reducer (2), a connecting frame (4) is arranged on the outside of the first reducer (2), a first cylinder (5) and a second cylinder (6) are respectively installed on both sides of the connecting frame (4), a second reducer (7) is arranged on one side of the stepping motor (1), and a connecting frame (8) and a transmission rod (9) are arranged on the outside of the second reducer (7). 15), a third cylinder (9) is installed on one side of the second connecting frame (8), the output ends of the third cylinder (9), the second cylinder (6) and the first cylinder (5) are all connected to a pressure claw (10), the middle of the pressure claw (10) is connected to a rubber pressure roller (11), the middle of the second reducer (7) is connected to a front roller (14), the middle of the connecting frame (4) is provided with a middle roller (12), and a synchronous belt (13) is provided between the middle roller (12) and the rear roller (3); A slider (16) is provided at the bottom of the first reducer (2), a linear guide rail (17) is provided in the middle of the slider (16), a support frame (20) is provided at the bottom of the linear guide rail (17), a screw hole (19) is provided on the outside of the slider (16), and a set screw (18) is provided inside the screw hole (19).

2. A novel roller drafting structure for a drawing frame according to claim 1, characterized in that: The output end of the stepper motor (1) is connected to the input end of the first reducer (2); the first reducer (2) and the second reducer (7) are both double-output shaft reducers; the output end of the first reducer (2) is fixedly connected to the rear rollers (3); the rear rollers (3) are provided in two groups and are symmetrically distributed.

3. A novel roller drafting structure for a drawing frame according to claim 1, characterized in that: The first connecting frame (4) and the first reducer (2) are fixedly connected by bolts, the first cylinder (5) and the second cylinder (6) are fixedly connected to the first connecting frame (4) by bolts, the second connecting frame (8) and the second reducer (7) are fixedly connected, and the third cylinder (9) and the second connecting frame (8) are fixedly connected.

4. A novel roller drafting structure for a drawing frame according to claim 1, characterized in that: The number of the pressure claws (10) is several groups and distributed in an array, the rubber pressure roller (11) and the pressure claws (10) are rotationally connected, the middle roller (12) and the rear roller (3) are transmission-connected via a synchronous belt (13), and the number of the middle rollers (12) is equal to the number of the rear rollers (3).

5. The novel roller drafting structure of the drawing frame according to claim 1 is characterized in that: The front rollers (14) are fixedly connected to the output end of the second reducer (7); the front rollers (14) are provided in two groups and are symmetrically distributed; a servo motor is provided at the end of the transmission rod (15); and conveyor belts are installed at the middle rollers (12) and the rubber pressure roller (11) near the bottom of the second cylinder (6).

6. A novel roller drafting structure for a drawing frame according to claim 1, characterized in that: The number of the sliders (16) is four and they are distributed in an array. The sliders (16) are fixedly connected to the first reducer (2). The linear guide rails (17) are fixedly connected to the support frame (20). The number of the linear guide rails (17) is two and they are symmetrically distributed. The number of the screw holes (19) is equal to the number of the sliders (16). The screw holes (19) are matched with the set screws (18). The end of the set screw (18) is in contact with the linear guide rail (17).

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