Tensioning and unwinding device for yarn winding

Abstract

The utility model discloses a kind of tightening unwinding devices for silk roll processing, including rack, rotating short shaft is equipped on rack, rotating short shaft is axially hollow, rotating short shaft end portion is equipped with support pipe fitting, rotating short shaft is equipped with air bag at the end outlet in support pipe fitting, at least two rows of guide holes are uniformly distributed on support pipe fitting periphery;Several springs are respectively arranged on the inner wall of support pipe fitting at each row of guide holes, the inner end of each row of spring is all connected with top strip, several guide columns that pass through corresponding guide hole are equipped on top strip, the end portion of the guide column of same column that passes out guide hole can be detachably connected with tightener tile;The section of tightener tile is arc, which is matched with silk roll inner tube;Air bag inflates, and top strip is extruded outward, so as to drive tightener tile to expand to support silk roll inner tube.

Description

Technical Field

[0001] This utility model relates to a fiber processing equipment, specifically a tensioning and unwinding device for filament spool processing. Background Technology

[0002] During filament processing, the filaments are typically wound onto an inner cylinder for subsequent processing. The inner cylinder needs to be secured on a rack during winding and unwinding to allow for rotation as needed. However, due to the high processing speed and frequent clamping and unwinding of the inner cylinder, considerable manpower is required.

[0003] Aluminum foil roll tensioning and unwinding device is disclosed in patent application 202321668374.1, which includes an air shaft and multiple air supports evenly arranged circumferentially on the outer wall of the air shaft; the top face of each air support is provided with a limiting boss, and the top surface of the air support is provided with a pointed set screw. This aluminum foil roll tensioning and unwinding device prevents the aluminum foil roll from moving axially during unwinding, ensuring the stability of the aluminum foil roll unwinding. However, this structure is only suitable for unwinding small-mass rolls, and jamming is likely to occur when unwinding large-mass rolls. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a reliable tensioning and unwinding device for wire roll processing.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows: a tensioning and unwinding device for wire coil processing, including a frame, a rotating short shaft on the frame, the rotating short shaft being hollow in the middle, a support tube fitting sleeved at the end of the rotating short shaft, an air bladder at the end outlet of the rotating short shaft located in the support tube fitting, and at least two rows of guide holes evenly distributed circumferentially on the support tube fitting;

[0006] Several springs are arranged on the inner wall of the support pipe next to each row of guide holes. A top bar is attached to the inner end of each row of springs. Several guide posts are provided on the top bar that move through the corresponding guide holes. Tensioning pads are detachably mounted between the ends of the guide posts that pass through the guide holes in the same row. The cross section of the tensioning pads is an arc shape that matches the inner cylinder of the wire roll.

[0007] When the airbag is inflated, it pushes the top bar outward, thereby causing the tensioning tile to stretch outward to tighten the inner cylinder of the wire coil.

[0008] As a preferred embodiment, the frame is equipped with a magnetic powder brake that cooperates with the rotating short shaft.

[0009] As a preferred embodiment, the frame is equipped with a servo motor that cooperates with the rotating short shaft.

[0010] As a preferred embodiment, the magnetic powder brake or servo motor is located on the side of the frame away from the support sleeve, and the rotating short shaft is connected to the frame via a bearing seat located on the side of the frame near the airbag.

[0011] As a preferred embodiment, the rotating short shaft is provided with an annular boss, and the supporting tube is fitted onto the annular boss.

[0012] As a preferred embodiment, the support tube has four rows of guide holes evenly distributed circumferentially.

[0013] As a preferred embodiment, a compressed air connector is provided at another port on the rotating short shaft.

[0014] As a preferred embodiment, the support tube is provided with end caps at both ends.

[0015] As a preferred embodiment, the airbag is a cylindrical airbag.

[0016] As a preferred embodiment, the end of the airbag away from the short axis of rotation is fitted with a visor.

[0017] The beneficial effects of this utility model are:

[0018] This device has a simple structure. When the air bladder is inflated, the top bar is squeezed outward, which in turn causes the tensioning plate to stretch outward to tighten the inner cylinder of the wire roll, effectively clamping the wire roll and facilitating the unwinding operation. It can also be used for wire roll winding when connected to a motor.

[0019] The magnetic powder brake or servo motor is located on the side of the frame away from the support sleeve. The rotating short shaft is connected to the frame through a bearing seat located on the side of the frame near the airbag, which enables the device to be better balanced.

[0020] Because the rotating short shaft is provided with an annular boss, and the supporting tube is fitted onto the annular boss, installation is more convenient.

[0021] A compressed air connector is provided at the other end of the rotating short shaft, making it more convenient to connect an external compressed air supply pipe.

[0022] Because the airbag is cylindrical, the tensioning pads open and close more smoothly and consistently, thus enhancing the tensioning effect. Attached Figure Description

[0023] Figure 1 This is a front view of a tensioning and unwinding device used in silk roll processing.

[0024] Figure 2 This is a side view of a tensioning and unwinding device used in silk roll processing.

[0025] In the diagram: 1. Frame, 2. Rotating short shaft, 3. Support pipe, 4. Airbag, 5. End cap, 6. Compressed air connector, 7. End cap, 8. Spring, 9. Top bar, 10. Guide post, 11. Tensioning bearing, 12. Magnetic powder brake, 13. Bearing housing. Detailed Implementation

[0026] The specific implementation scheme of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figure 1-2 As shown, a tensioning and unwinding device for wire coil processing includes a frame 1. A rotating short shaft 2 is mounted on the frame 1. The rotating short shaft 2 is hollow in the center and has an annular boss. A support tube 3 is fitted onto the annular boss. An air bladder 4, which is cylindrical, is located at the end outlet of the rotating short shaft 2 in the support tube 3. A blind end 5 is embedded at the end of the air bladder 4 away from the rotating short shaft 2.

[0028] A compressed air connector 6 is provided at another port on the rotating short shaft 2. End caps 7 are provided at both ends of the support pipe 3.

[0029] The support pipe 3 has four rows of guide holes evenly distributed around its circumference; several springs 8 are arranged on the inner wall of the support pipe 3 next to each row of guide holes, and a top bar 9 is attached to the inner end of each row of springs 8. Several guide posts 10 are provided on the top bar 9, which move through the corresponding guide holes. Tensioning blocks 11 are detachably mounted between the ends of the guide posts 10 in the same row that protrude from the guide holes; the cross section of the tensioning blocks 11 is an arc shape that matches the inner cylinder of the wire roll.

[0030] The frame 1 is equipped with a magnetic powder brake 12 that cooperates with the rotating short shaft 2. The magnetic powder brake 12 is located on the side of the frame 1 away from the support sleeve, and the rotating short shaft 2 is connected to the frame 1 through a bearing seat 13 located on the side of the frame 1 near the airbag 4.

[0031] When the airbag 4 is inflated, it pushes the top bar 9 outward, thereby causing the tensioning tile 11 to stretch outward to tighten the inner cylinder of the wire coil.

[0032] When compressed air is introduced, the airbag 4 expands, and the top bar 9 moves the tile outward, causing the tensioning tile 11 to tighten the inner cylinder of the wire roll. When the compressed air supply stops, the airbag 4 contracts, and the spring 8 moves the top bar 9 inward, which in turn causes the tile to tighten inward, allowing the inner cylinder of the wire roll to be smoothly disengaged from the support pipe 3.

[0033] The above embodiments are merely illustrative of the principles and effects of this utility model, as well as some of its applications, and are not intended to limit this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A tensioning and unwinding device for wire coil processing, comprising a frame, wherein a short rotating shaft is provided on the frame, characterized in that: The rotating short shaft is hollow in the middle, and a support tube is sleeved at the end of the rotating short shaft. An air bladder is provided at the end outlet of the rotating short shaft in the support tube. At least two rows of guide holes are evenly distributed in the circumferential direction on the support tube. Several springs are arranged on the inner wall of the support pipe next to each row of guide holes. A top bar is attached to the inner end of each row of springs. Several guide posts are provided on the top bar that move through the corresponding guide holes. Tensioning pads are detachably mounted between the ends of the guide posts that pass through the guide holes in the same row. The cross section of the tensioning pads is an arc shape that matches the inner cylinder of the wire roll. When the airbag is inflated, it pushes the top bar outward, thereby causing the tensioning tile to stretch outward to tighten the inner cylinder of the wire coil.

2. The tensioning and unwinding device for wire coil processing as described in claim 1, characterized in that: The frame is equipped with a magnetic powder brake that cooperates with the rotating short shaft.

3. The tensioning and unwinding device for wire coil processing as described in claim 2, characterized in that: The frame is equipped with a servo motor that works in conjunction with the rotating short shaft.

4. The tensioning and unwinding device for wire coil processing as described in claim 2 or 3, characterized in that: The magnetic powder brake or servo motor is located on the side of the frame away from the support sleeve, and the rotating short shaft is connected to the frame through a bearing seat located on the side of the frame near the airbag.

5. The tensioning and unwinding device for wire coil processing as described in claim 1, characterized in that: The rotating short shaft is provided with an annular boss, and the supporting tube is fitted onto the annular boss.

6. The tensioning and unwinding device for wire coil processing as described in claim 1, characterized in that: The support tube has four rows of guide holes evenly distributed around its circumference.

7. The tensioning and unwinding device for wire coil processing as described in claim 1, characterized in that: A compressed air connector is provided at the other end of the rotating short shaft.

8. The tensioning and unwinding device for wire coil processing as described in claim 1, characterized in that: End caps are provided at both ends of the support pipe.

9. The tensioning and unwinding device for wire coil processing as described in claim 1, characterized in that: The airbag is a cylindrical airbag.

10. The tensioning and unwinding device for wire coil processing as described in claim 9, characterized in that: An end cap is embedded at the end of the airbag away from the short axis of rotation.

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