Opening angle adjustment mechanism for draft channel in spinning

Abstract

The utility model relates to a kind of spinning draft passage opening angle adjusting mechanism, the draft passage includes a pair of vertical side plates being set apart left and right, the outside of vertical side plate is respectively equipped with moving frame, vertical side plate is movably connected with moving frame, T-shaped steel is equipped between vertical side plate and moving frame, the bottom plate both ends of T-shaped steel are respectively fixed with connecting rod, the bottom plate upper end of T-shaped steel is movably connected with the middle part of moving frame, moving frame bottom surface is equipped with driving assembly, the driving assembly includes worm gear reducer, the worm shaft of worm gear reducer is hinged with the lower end of connecting rod, the center plate of T-shaped steel is equipped with the rectangular bar of transmission thrust between vertical side plate, the utility model utilizes the worm shaft of worm gear reducer to promote T-shaped steel to swing inboard by connecting rod, when rectangular bar is swung synchronously with T-shaped steel, transmission thrust is transmitted to the lower end of vertical side plate, so that the lower end of left and right two vertical side plates is swung synchronously inboard, to achieve the purpose of adjusting draft passage opening angle.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a mechanism for adjusting the opening angle of the drafting channel in spinning. Background Technology

[0002] In the nonwoven fabric manufacturing process, compared with traditional chemical fiber spinning, spunbond has obvious advantages in spinning technology, product performance and production efficiency. It completes the production of nonwoven fabric through airflow stretching and direct web formation.

[0003] The airflow drafting process of spunbond spinning includes upper drafting, middle drafting and lower drafting. The spun yarn from the upper drafting enters the middle drafting and then the lower drafting. The middle drafting plays an important role in the quality of the spun web and the performance of the product throughout the entire drafting process.

[0004] During the drawing process, the airflow in the upper drawing passes through the middle drawing channel into the lower drawing. Sometimes, depending on the process requirements, it is necessary to increase or decrease the airflow velocity from the middle drawing to the lower drawing. This requires adjusting the opening angle of the middle drawing channel to meet the airflow velocity requirements of different drawing processes. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a mechanism for adjusting the opening angle of the drawing channel in spinning, so as to realize the adjustment of the airflow velocity through the drawing channel.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a mechanism for adjusting the opening angle of a drafting channel in spinning. The drafting channel includes a pair of vertical side plates arranged at a distance from each other. The outer sides of the vertical side plates are respectively provided with movable frames that can move synchronously. The upper parts of the front and rear ends of the vertical side plates are movably connected to the upper parts of the front and rear ends of the movable frames. A T-shaped steel extending along the length of the movable frame and with its bottom plate facing the movable frame is provided between the outer side of the vertical side plates and the movable frame. The upper center of the bottom plate of the T-shaped steel is movably connected to the middle of the upper end of the movable frame. The bottom surface of the movable frame is provided with a driving component that pushes the lower end of the vertical side plates to swing synchronously to change the opening angle of the lower end of the drafting channel. The driving component includes worm gear reducers that are movably installed on the bottom surfaces of the front and rear ends of the movable frame. The worm gear reducers are connected by a connecting shaft. The bottom plates of the T-shaped steel are respectively fixed with connecting rods. The worm shaft of the worm gear reducer is hinged to the lower end of the connecting rod. A rectangular rod for transmitting thrust is provided between the center plate of the T-shaped steel and the vertical side plates.

[0007] To ensure stable swing at the lower end of the vertical side plate, three cylinders are spaced apart on the center plate of the T-shaped steel. The cylinder mounting end is hinged to the center plate of the T-shaped steel. A limiting block corresponding to the position of the cylinder is installed at the lower end of the vertical side plate. A vertical rectangular groove is opened on the limiting block. The upper end of the rectangular rod is connected to the piston rod of the cylinder, and the lower end of the rectangular rod slides in fit with the rectangular groove.

[0008] Specifically, the drive assembly has a handwheel rotatably mounted on the front end face of the movable frame. The handwheel shaft is connected to the worm gear shaft of the worm gear reducer via a universal joint. A transition shaft is rotatably mounted at the center of the bottom surface of the movable frame. The connecting shaft and the transition shaft are connected via a universal joint.

[0009] Furthermore, it also has a frame, with the movable frame positioned between the front and rear ends of the frame, and screw and nut mechanisms for driving the movable frame to move synchronously are respectively installed at the front and rear ends of the frame.

[0010] Furthermore, the frame includes a front end plate and a rear end plate, with a crossbeam fixed between the front end plate and the rear end plate. The lead screw and nut mechanism is respectively installed on the inner sides of the front end plate and the rear end plate, and a reduction motor that drives the lead screw and nut mechanism to rotate synchronously is installed on the side of the crossbeam.

[0011] The beneficial effects of this utility model are as follows: This utility model drives the worm gear reducer to rotate by rotating the handwheel. The worm shaft of the worm gear reducer pushes the T-shaped steel to swing inward through the connecting rod. The rectangular rod swings synchronously with the T-shaped steel to transmit the thrust to the lower end of the vertical side plate, so that the lower ends of the left and right vertical side plates swing inward synchronously, thereby achieving the purpose of adjusting the opening angle of the drawing channel. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0014] Figure 2 This is a partially enlarged schematic diagram of the installation structure of the drive component relative to the T-shaped steel of this utility model.

[0015] Figure 3 This is a front view of the front end of this utility model.

[0016] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure along the AA direction.

[0017] In the diagram: 1. Vertical side plate, 2. Moving frame, 3. T-shaped steel, 4. Drive assembly, 5. Worm gear reducer, 6. Connecting shaft, 7. Connecting rod, 8. Cylinder, 9. Limit block, 9-1. Rectangular groove, 10. Rectangular rod, 11. Handwheel, 12. Transition shaft, 13. Frame, 13-1. Front end plate, 13-2. Rear end plate, 13-3. Crossbeam, 14. Screw and nut mechanism, 15. Gear motor. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] like Figures 1-4 The invention relates to a spinning process for adjusting the opening angle of a drawing channel, which has a frame 13. The frame 13 includes a front end plate 13-1 and a rear end plate 13-2. A crossbeam 13-3 is fixedly connected between the upper and lower ends of the front end plate 13-1 and the upper and lower ends of the rear end plate 13-2.

[0020] The drawing channel is located between the front end plate 13-1 and the rear end plate 13-2. The drawing channel includes a pair of vertical side plates 1 arranged on the left and right sides at a distance. The outer side of each vertical side plate 1 is provided with a movable frame 2 that can move synchronously. The movable frame 2 is located between the front and rear ends of the frame 13. The upper parts of the front and rear ends of the vertical side plate 1 are movably connected to the upper parts of the front and rear ends of the movable frame 2.

[0021] The inner sides of the front end plate 13-1 and the inner sides of the rear end plate 13-2 are respectively equipped with screw and nut mechanisms 14 via angle steel seats. A reduction motor 15 is installed on the side of the crossbeam 13-3 to drive the screw and nut mechanism 14 to rotate synchronously. The screw and nut mechanism 14 drives the moving frame 2 to move synchronously.

[0022] A T-shaped steel 3 is provided between the outer side of the vertical side plate 1 and the movable frame 2. The T-shaped steel 3 extends along the length of the movable frame 2, and the bottom plate of the T-shaped steel 3 is located on the outer side and is vertically facing the movable frame 2. The center plate of the T-shaped steel 3 is located on the inner side and is horizontal. The upper center of the bottom plate of the T-shaped steel 3 is movably connected to the middle of the upper end of the movable frame 2, so that the T-shaped steel 3 is in a suspended state. Connecting rods 7 are fixed at the front and rear ends of the lower end of the bottom plate of the T-shaped steel 3, respectively.

[0023] The bottom surface of the movable frame 2 is provided with a drive assembly 4 that pushes the lower end of the vertical side plate 1 to swing synchronously, thereby changing the opening angle of the lower end of the stretching channel. The drive assembly 4 includes two worm gear reducers 5, a handwheel 11, and a transition shaft 12. The two worm gear reducers 5 are movably installed on the bottom surfaces of the front and rear ends of the movable frame 2, the transition shaft 12 is rotatably installed at the center of the bottom surface of the movable frame 2, and the handwheel 11 is rotatably located on the front end face of the movable frame 2. A connecting shaft 6 is provided between the worm gear reducers 5 and the transition shaft 12. The worm gear shaft of the worm gear reducer 5 and the connecting shaft 6, as well as the connecting shaft 6 and the transition shaft 12, are all connected by universal joint transmission. The handwheel shaft of the handwheel 11 is also connected to the worm gear shaft of the worm gear reducer 5 on the bottom surface of the front end of the movable frame 2 through a universal joint. The worm shaft of the worm gear reducer 5, which meshes with the worm gear shaft, is hinged to the lower end of the connecting rod 7.

[0024] Three cylinders 8 are spaced apart on the center plate of the T-shaped steel 3. The mounting end of the cylinder 8 is hinged to the center plate of the T-shaped steel 3. A limiting block 9 corresponding to the position of the cylinder 8 is installed at the lower end of the vertical side plate 1. A vertical rectangular groove 9-1 is opened on the limiting block 9. The piston rod of the cylinder 8 is connected to a rectangular rod 10. The rectangular rod 10 slides in cooperation with the rectangular groove 9-1.

[0025] When it is necessary to adjust the opening angle of the drawing channel, simply turn the handwheel 11 to drive the worm gear reducer 5 to rotate, so that the worm shaft of the worm gear reducer 5 pushes the T-shaped steel 3 to swing inward through the connecting rod 7. When the rectangular rod 10 swings synchronously with the T-shaped steel 3, it slides with the rectangular groove 9-1 to transmit the thrust to the lower end of the vertical side plate 1, so that the lower ends of the two vertical side plates 1 swing inward synchronously, thereby achieving the purpose of adjusting the opening angle of the drawing channel.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A mechanism for adjusting the opening angle of a drafting channel in spinning, wherein the drafting channel includes a pair of vertical side plates (1) arranged at a distance from each other on the left and right, and each of the vertical side plates (1) is provided with a movable frame (2) that can move synchronously on its outer side, wherein the upper parts of the front and rear ends of the vertical side plates (1) are movably connected to the upper parts of the front and rear ends of the movable frame (2), characterized in that: A T-shaped steel (3) extending along the length of the mobile frame (2) and with its bottom plate facing the mobile frame (2) is provided between the outer side of the vertical side plate (1) and the mobile frame (2). The upper center of the bottom plate of the T-shaped steel (3) is movably connected to the middle of the upper end of the mobile frame (2). The bottom surface of the mobile frame (2) is provided with a drive assembly (4) that pushes the lower end of the vertical side plate (1) to swing synchronously and change the opening angle of the lower end of the stretching channel. The drive assembly (4) includes a worm gear reducer (5) that is movably installed on the bottom surfaces of the front and rear ends of the mobile frame (2). The worm gear reducers (5) are connected by a connecting shaft (6). The bottom plates of the T-shaped steel (3) are fixed with connecting rods (7). The worm shaft of the worm gear reducer (5) is hinged to the lower end of the connecting rod (7). A rectangular rod (10) for transmitting thrust is provided between the center plate of the T-shaped steel (3) and the vertical side plate (1).

2. The spinning drafting channel opening angle adjustment mechanism as described in claim 1, characterized in that: Three cylinders (8) are arranged at intervals on the center plate of the T-shaped steel (3). The cylinder (8) is hinged to the center plate of the T-shaped steel (3). A limiting block (9) corresponding to the position of the cylinder (8) is installed at the lower end of the vertical side plate (1). A vertical rectangular groove (9-1) is opened on the limiting block (9). The upper end of the rectangular rod (10) is connected to the piston rod of the cylinder (8). The lower end of the rectangular rod (10) is slidably engaged with the rectangular groove (9-1).

3. The spinning drafting channel opening angle adjustment mechanism as described in claim 1, characterized in that: The drive assembly (4) has a handwheel (11) that is rotatably located on the front end face of the movable frame (2). The handwheel shaft of the handwheel (11) is connected to the worm gear shaft of the worm gear reducer (5) via a universal joint. A transition shaft (12) is rotatably located at the center of the bottom surface of the movable frame (2). The connecting shaft (6) and the transition shaft (12) are connected via a universal joint.

4. The spinning drafting channel opening angle adjustment mechanism as described in claim 1, characterized in that: It also has The frame (13) is located between the front and rear ends of the frame (13), and the front and rear ends of the frame (13) are respectively equipped with screw and nut mechanisms (14) for driving the movable frame (2) to move synchronously.

5. The spinning drafting channel opening angle adjustment mechanism as described in claim 4, characterized in that: The frame (13) includes a front end plate (13-1) and a rear end plate (13-2). A crossbeam (13-3) is fixed between the front end plate (13-1) and the rear end plate (13-2). The screw nut mechanism (14) is installed on the inner side of the front end plate (13-1) and the rear end plate (13-2). A geared motor (15) that drives the screw nut mechanism (14) to rotate synchronously is installed on the side of the crossbeam (13-3).

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