Pneumatic take-up reel and method of use

Abstract

The application relates to a pneumatic winding shaft and a use method thereof, relates to the field of rope winding, and comprises a fixing base, a rotating main shaft connected with the fixing base and a conical winding pipe sleeved at the front end of the rotating main shaft, the conical winding pipe is slidably connected with the rotating main shaft in the axial direction, the outer diameter of the conical winding pipe gradually increases from the front end to the rear end, a baffle is fixedly connected to the fixing base and located at the outer side of the large-diameter end of the conical winding pipe, a connecting rod passes through the rotating main shaft in the axial direction, the front end of the connecting rod is fixedly connected with the conical winding pipe, the rear end of the connecting rod is fixedly connected with a cylinder barrel, the rear end of the rotating main shaft is fixedly connected with a piston located in the cylinder barrel, the piston and the rear end surface of the cylinder barrel form a sealed expansion cavity, and the front end of the conical winding pipe is provided with an air inlet hole communicated with the expansion cavity. Through the axial movement of the conical winding pipe, the unwinding operation after the rope winding is realized, the structure is simple, and the winding and unwinding of various ropes are suitable.

Description

Technical Field

[0001] This invention relates to the field of rope winding, and more particularly to the field of rope winding, specifically to a pneumatic winding shaft and its method of use. Background Technology

[0002] Bundling thread twisting and spooling machines are commonly used equipment in industrial and agricultural fields. They are two-in-one forming devices that twist and spool single or multi-strand yarns. The twisting and spooling machine is equipped with a take-up shaft to take up the twisted binding thread. There are two existing take-up shafts for taking up the binding thread. One method involves winding the binding thread onto a solid mandrel, then removing the coil and mandrel, and pressing the mandrel out using a press. This method is complex. The other method uses a mechanical or pneumatic expansion shaft. However, after expansion, the shaft is not round, resulting in an uneven center hole in the coil after winding, which is inconvenient for subsequent use and can easily lead to loosening.

[0003] The invention patent with publication number CN109733946A discloses a rope winding device and method for rapid unloading. By setting the fixed baffle and the mandrel as separate structures, and unloading is carried out after the mandrel and the fixed baffle are separated, the unloading efficiency is greatly improved. The reaction force formed by the push plate blocking the rope roll is used to separate the rope roll from the mandrel, thus realizing the separation of the rope roll from the mandrel. However, the structure is relatively complex, and it is difficult to remove the rope roll from the mandrel. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a pneumatic winding shaft and its usage method.

[0005] This invention is achieved through the following technical solution: a pneumatic take-up shaft is provided, including a fixed base, a rotating main shaft axially connected to the fixed base, and a tapered take-up tube sleeved on the front end of the rotating main shaft. The tapered take-up tube is slidably connected to the rotating main shaft along the axial direction, and the outer diameter of the tapered take-up tube gradually increases from front to back. A baffle located outside the large-diameter end of the tapered take-up tube is fixedly connected to the fixed base. The invention also includes a connecting rod passing through the rotating main shaft along the axial direction. The front end of the connecting rod is fixedly connected to the tapered take-up tube, and the rear end of the connecting rod is fixedly connected to a cylinder. A piston located inside the cylinder is fixedly connected to the rear end of the rotating main shaft. The piston and the rear end face of the cylinder form a sealed expansion cavity. The front end of the tapered take-up tube is provided with an air inlet communicating with the expansion cavity.

[0006] The power mechanism drives the rotating spindle and tapered take-up tube in this design to rotate, winding the rope onto the tapered take-up tube and making the end of the wound rope fit against the baffle on the outer side of the large-diameter end of the tapered take-up tube. After winding, high-pressure gas is injected into the expansion chamber through the air inlet, causing the expansion chamber to expand. Since the piston is fixed to the rotating spindle, the cylinder moves backward. The cylinder drives the tapered take-up tube to move axially backward through the connecting rod. The rope roll cannot move backward under the limiting action of the baffle. The diameter of the tapered take-up tube inside the rope roll becomes smaller, causing the tapered take-up tube to separate from the rope roll, thus making it easier to remove the rope roll from the tapered take-up tube.

[0007] As an optimization, the connecting rod passes through the through hole of the rotating spindle, forming an air intake channel connecting the expansion chamber and the air intake port. High-pressure gas from the air intake port enters the expansion chamber through this air intake channel.

[0008] As an optimization, a sealing ring is installed between the front end of the rotating spindle and the tapered winding tube. In this design, the sealing ring seals the upper end of the rotating spindle and the tapered winding tube, facilitating gas entry into the air intake channel.

[0009] As an optimization, the piston is fixed to the rear end of the rotating spindle by bolts, and a piston connecting hole is opened on the piston to connect the air intake channel and the expansion chamber. In this solution, the piston is fixed to the rear end of the rotating spindle by bolts, which facilitates the assembly and disassembly of the piston, and the piston connecting hole facilitates the connection between the air intake channel and the expansion chamber.

[0010] As an optimization, an air inlet seat is threadedly connected to the front end of the tapered take-up tube, and the air inlet hole is located on the air inlet seat. In this design, the air inlet seat is threadedly connected to the front end of the tapered take-up tube, which facilitates the installation of the air inlet hole.

[0011] As an optimization, a pressure block is fixedly connected to the front end of the connecting rod, located between the air intake seat and the conical winding tube. The pressure block has vent holes extending forward and backward. In this design, the pressure block is located between the air intake seat and the conical winding tube, facilitating a secure connection between the connecting rod and the conical winding tube.

[0012] As an optimization, the tapered take-up tube is connected to the rotating spindle via a sliding spline. In this design, the sliding spline connection enables the tapered take-up tube to slide along the axial direction with the rotating spindle.

[0013] As an optimization, a drive wheel is fixedly connected to the rotating spindle. The power unit drives the drive wheel to rotate, thereby driving the rotating spindle to rotate.

[0014] As an optimization, the rotating spindle is equipped with a spring that pushes the tapered take-up tube forward. The tapered take-up tube returns to its original position under the action of the spring.

[0015] A method for using a pneumatic take-up shaft includes the following steps:

[0016] a. The power mechanism drives the rotating spindle and the tapered take-up tube to rotate, and the rope is wound onto the tapered take-up tube, so that the end of the wound rope is in contact with the baffle on the outside of the large diameter end of the tapered take-up tube.

[0017] b. After winding is completed, high-pressure gas is injected into the expansion chamber through the air inlet to expand the expansion chamber. Since the piston is fixed to the rotating main shaft, the cylinder moves backward. The cylinder drives the tapered winding tube to move axially backward through the connecting rod.

[0018] c. After the conical winding tube moves backward, the rope roll cannot move backward under the limiting action of the baffle. The diameter of the conical winding tube inside the rope roll becomes smaller, causing the conical winding tube to separate from the rope roll.

[0019] d. Remove the rope coil from the tapered take-up tube, which will return to its original position under the action of the spring.

[0020] The beneficial effects of the present invention are as follows: The pneumatic winding shaft and its method of use of the present invention realize the unwinding operation after the rope is wound by the axial movement of the conical winding tube, which facilitates the removal of the rope after unwinding. The structure is simple, no air shaft is required, and it is suitable for the winding and unwinding of various ropes. Attached Figure Description

[0021] Figure 1 This is a schematic cross-sectional view of the present invention;

[0022] As shown in the figure:

[0023] 1. Tapered take-up tube, 2. Rotating spindle, 3. Baffle, 4. Fixed seat, 5. Drive wheel, 6. Piston, 7. Cylinder, 8. Spline, 9. Spring, 10. Connecting rod, 11. Air inlet seat, 12. Air inlet hole, 13. Pressure block, 14. Expansion chamber, 15. Bearing, 16. Sealing ring. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0025] like Figure 1 As shown, a pneumatic take-up shaft of the present invention includes a fixed base 4, a rotating main shaft 2 connected to the fixed base 4, and a tapered take-up tube 1 sleeved on the front end of the rotating main shaft 2. The fixed base 4 is a circular tube with a flange welded to the outside, which is used to fix it on the frame to realize the installation and fixation of the entire start-up take-up shaft.

[0026] The rotating spindle 2 passes through the fixed seat 4 and is rotatably connected by the bearing 15. The outer diameter of the tapered take-up tube 1 gradually increases from front to back, and the outer circumferential surface is tapered. The front end of the rotating spindle 2 is located inside the tapered take-up tube 1, and the rear end of the rotating spindle 2 is located outside the rear end of the tapered take-up tube 1.

[0027] The tapered take-up tube 1 is slidably connected to the rotating spindle 2 along the axial direction. In this embodiment, the inner ring at the rear end of the tapered take-up tube 1 is connected to the rotating spindle 2 via a sliding spline 8, so that the rotating spindle 2 can drive the tapered take-up tube 1 to rotate when it rotates. A drive wheel 5 is fixedly connected to the rotating spindle 2. The drive wheel 5 is a driven wheel, which is driven to rotate by an external power mechanism, thereby realizing the rotation of the rotating spindle 2. The drive wheel 5 can be a transmission wheel structure such as a pulley, gear, or sprocket.

[0028] A baffle 3 is fixedly attached to the fixed base 4, located on the outer side of the large diameter end of the tapered winding tube 1. The baffle 3 is fixed on the fixed base 4, and its front end is an annular surface, thus wrapping around the outer side of the large diameter end of the winding tube 1. During winding, the rope roll adheres to the front annular surface, which plays a role in axial limiting.

[0029] It also includes a connecting rod 10 that passes axially through the rotating main shaft 2. The front end of the connecting rod 10 is fixedly connected to the tapered winding tube 1, and the rear end of the connecting rod 10 is fixedly connected to a cylinder 7. In this embodiment, the connecting rod 10 is a screw rod, and the connecting rod 10 is connected to the cylinder 7 by threads. An anti-loosening nut is installed at the rear of the cylinder 7. The cylinder 7 is a cylindrical tube with its opening facing forward. A piston 6 located inside the cylinder 7 is fixedly connected to the rear end of the rotating main shaft 2. The outer diameter of the piston 6 is larger than the outer diameter of the rear end of the rotating main shaft 2. In this embodiment, the piston 6 is fixedly connected to the rear end of the rotating main shaft 2 by bolts, and a sealing ring is installed on the outer ring of the piston 6.

[0030] The piston 6 and the rear end face of the cylinder 7 form a closed expansion chamber 14. When gas is injected into the expansion chamber 14 and it expands, the cylinder 7 moves backward. The front end of the tapered winding tube 1 is provided with an air inlet 12 that communicates with the expansion chamber 14.

[0031] To achieve communication between the air inlet 12 and the expansion chamber 14, the connecting rod 10 passes through the through hole of the rotating spindle 2, forming an air intake channel connecting the expansion chamber 14 and the air inlet 12. That is, the rotating spindle 2 has a through hole at its center, and the connecting rod 10 passes through the through hole, with the inner diameter of the through hole being larger than the outer diameter of the connecting rod 10.

[0032] The piston 6 has a piston communication hole that connects the intake passage and the expansion chamber 14. In this embodiment, the piston communication hole is located at the center of the piston 6, and its diameter is larger than the outer diameter of the connecting rod 10.

[0033] The front end of the tapered take-up tube 1 is threadedly connected to an air inlet seat 11, and the air inlet hole 12 is provided on the air inlet seat 11.

[0034] The front end of the connecting rod 10 is fixed with a pressure block 13 located between the air inlet seat 11 and the conical winding tube 1. By installing the air inlet seat 11, the pressure block 13 is pressed into the inside of the conical winding tube 1. The pressure block 13 has a vent hole extending from front to back, so as to facilitate the passage of gas.

[0035] To prevent air leakage from the gap between the rotating spindle 2 and the tapered take-up tube 1, a sealing ring 16 is installed between the front end of the rotating spindle 2 and the tapered take-up tube 1.

[0036] To achieve the resetting of the tapered take-up tube 1, a spring 9 is installed on the rotating spindle 2 to push the tapered take-up tube 1 forward. The spring 9 is sleeved on the rotating spindle 2, with its rear end pressing against the rotating spindle 2 and its front end pressing against the tapered take-up tube 1.

[0037] A method for using a pneumatic take-up shaft includes the following steps:

[0038] a. The power mechanism drives the rotating spindle 2 and the tapered winding tube 1 to rotate, winding the rope onto the tapered winding tube 1, and making the end of the wound rope fit against the baffle 3 on the outer side of the large diameter end of the tapered winding tube 1.

[0039] b. After winding is completed, high-pressure gas is injected into the expansion chamber 14 through the air inlet 12. In this embodiment, the air gun in the workshop can be inserted into the air inlet 12 to expand the expansion chamber 14. Since the piston 6 is fixedly connected to the rotating main shaft 2, the cylinder 7 moves backward. The cylinder 7 drives the conical winding tube 1 to move axially backward through the connecting rod 10.

[0040] c. After the conical winding tube 1 moves backward, the rope roll cannot move backward under the limiting action of the baffle 3. The diameter of the conical winding tube 1 inside the rope roll becomes smaller, causing the conical winding tube 1 to separate from the rope roll.

[0041] d. Remove the rope coil from the conical winding tube 1. The conical winding tube 1 will return to its original position under the action of the spring.

[0042] Of course, the above description is not limited to the examples above. Technical features not described in this invention can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solutions of this invention and are not intended to limit this invention. This invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention do not depart from the spirit of this invention and should also fall within the scope of protection of the claims of this invention.

Claims

1. A pneumatic take-up spool, characterized by: The utility model relates to a kind of rope winding device, including fixed seat (4), rotating main shaft (2) being connected on fixed seat (4) with axle and the taper winding pipe (1) of sleeve in rotating main shaft (2) front end, the taper winding pipe (1) is slidably connected with rotating main shaft (2) along axial direction, and the outer diameter of taper winding pipe (1) gradually increases from front to back, the fixed seat (4) is fixed with baffle (3) located in the taper winding pipe (1) large diameter end outside, baffle (3) is fixed in fixed seat (4), and front end is annular surface, to be wrapped in taper winding pipe (1) large diameter end outside, rope winding is adhered on annular surface when winding, and it plays the role of axial limiting; It further includes connecting rod (10) passing through rotating main shaft (2) along axial direction, the front end of connecting rod (10) is fixed with taper winding pipe (1), the rear end of connecting rod (10) is fixed with cylinder barrel (7), the rear end of rotating main shaft (2) is fixed with piston (6) located in cylinder barrel (7), the rear end surface of piston (6) and cylinder barrel (7) form closed expansion cavity (14), the front end of taper winding pipe (1) is equipped with air inlet hole (12) being communicated with expansion cavity (14).

2. A pneumatic reel according to claim 1, wherein: The through hole of connecting rod (10) passing through rotating main shaft (2) and connecting rod (10) form air inlet channel being communicated with expansion cavity (14) and air inlet hole (12).

3. A pneumatic reel according to claim 2, wherein: Sealing ring is installed between the front end of rotating main shaft (2) and taper winding pipe (1).

4. A pneumatic reel according to claim 2, wherein: Piston (6) is fixed with the rear end of rotating main shaft (2) by bolt, and piston communication hole is opened in piston (6) and communicated with air inlet channel and expansion cavity (14).

5. A pneumatic reel according to claim 2, wherein: Air inlet seat (11) is threadedly connected with the front end of taper winding pipe (1), and air inlet hole (12) is arranged on air inlet seat (11).

6. A pneumatic reel according to claim 5, wherein: Pressure block (13) is fixed with the front end of connecting rod (10) and located between air inlet seat (11) and taper winding pipe (1), and air-permeable hole is opened in pressure block (13) and extends front and back.

7. A pneumatic reel according to claim 1, wherein: Taper winding pipe (1) is connected with rotating main shaft (2) through sliding spline (8).

8. A pneumatic reel according to claim 1, wherein: Driving wheel (5) is fixed on rotating main shaft (2).

9. A pneumatic reel according to claim 1, wherein: Spring (9) is installed on rotating main shaft (2) and pushes taper winding pipe (1) forward.

10. A method of using the pneumatic winding shaft according to any one of claims 1-9, characterized in that, It includes the following steps: a, rotating main shaft (2) and taper winding pipe (1) are driven to rotate by power mechanism, rope cable is wound on taper winding pipe (1), and the end of rope winding after winding is adhered with baffle (3) located in the large diameter end outside of taper winding pipe (1); b, after winding, high-pressure gas is injected into expansion cavity (14) through air inlet hole (12), so that expansion cavity (14) expands, because piston (6) is fixed with rotating main shaft (2), so cylinder barrel (7) moves backward, cylinder barrel (7) drives taper winding pipe (1) to move axially backward through connecting rod (10); c, after taper winding pipe (1) moves backward, rope winding cannot move backward under the limiting action of baffle (3), the diameter of taper winding pipe (1) located inside rope winding becomes smaller, so that taper winding pipe (1) is separated from rope winding; d, rope winding is taken off from taper winding pipe (1), and taper winding pipe (1) is reset forward under the action of spring.

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