High-speed running packing belt winding device

Abstract

The utility model discloses a high-speed running packing belt winding device which comprises a machine frame (1), a roller (2) is arranged on one side of the machine frame (1), a motor (3) is arranged on the machine frame (1), and an adjusting shaft (4) is arranged in the roller (2). A plurality of grooves (5) are formed in the peripheral surface of the adjusting shaft (4), one end of the bottom surface of each groove (5) is tangent to the peripheral surface of the adjusting shaft (4), the other end of each groove (5) spirally extends towards the core part of the adjusting shaft (4), and one end of the adjusting shaft (4) axially extends out of the roller (2) and is provided with a hand wheel (6); an expansion pipe is arranged on the outer side of the roller (2) and formed by surrounding a plurality of arc-shaped plates (7), guide columns (8) are arranged on the inner sides of the arc-shaped plates (7), the inner side ends of the guide columns (8) are attached to the bottom faces of the grooves (5), and compression springs (9) are arranged between the guide columns (8) and the inner wall of the roller (2). The packing belt conveying device has the advantage of being beneficial to improving the production efficiency of packing belts.

Description

Technical Field

[0001] This utility model belongs to the field of strapping production equipment, and in particular relates to a high-speed rotating strapping winding device. Background Technology

[0002] After the strapping is melted and formed in a mold, it first enters a water tank to cool and solidify, and then is packaged into a roll on a winding device. Existing winding devices include a frame, with a roller on one side of the frame. A motor connected to the roller is mounted on the frame. A paper tube is fitted onto the roller, and one end of the strapping is led out and adhered to the paper tube. The motor drives the roller to rotate, which in turn drives the paper tube to rotate. The paper tube pulls the strapping and winds it around the paper tube. The paper tube needs to be replaced after a certain length of strapping is wound on it. The length of the paper tube is several times the width of the strapping, so a reciprocating motion mechanism is usually installed at the front of the winding device. This mechanism drags the strapping back and forth along the axial direction of the roller, causing the strapping to spirally wind around the paper tube layer by layer.

[0003] In existing winding devices, to increase the friction between the paper tube and the roller and prevent slippage during winding (mainly occurring during roller start-up and stop rotation), multiple elastic rubber protrusions are set on the outer circumference of the roller to achieve a tight fit between the paper tube and the roller. However, to facilitate paper tube replacement, the tight fit cannot be too large, resulting in insufficient connection strength between the paper tube and the roller. The roller cannot operate at high speed, otherwise slippage will still occur. In particular, the inner hole tolerance of the paper tube is very large. In order to allow paper tubes with smaller inner holes to be installed on the roller for use, the tightness of the design between the roller and the paper tube cannot be too large. While meeting the requirements for the use of paper tubes with small inner holes, the tightness between paper tubes with large inner holes and the roller is further reduced, making slippage more likely. It is necessary to further reduce the operating speed of the roller, which is not conducive to improving the production efficiency of the strapping. Utility Model Content

[0004] The purpose of this invention is to provide a high-speed rotating strapping winding device. This invention has the advantage of improving strapping production efficiency.

[0005] The technical solution of this utility model: a high-speed rotating packing strap winding device includes a frame, a roller on one side of the frame, a motor with its output end connected to the roller on the frame, the roller having a hollow structure, and an adjusting shaft inside the roller; multiple grooves are provided on the outer circumferential surface of the adjusting shaft, one end of the bottom surface of the groove is tangent to the outer circumferential surface of the adjusting shaft, and the other end of the groove extends spirally toward the core of the adjusting shaft, one end of the adjusting shaft extends axially out of the roller and is provided with a handwheel; an expansion tube is provided on the outer side of the roller, the expansion tube is composed of multiple arc-shaped plates, and a guide post extending into the roller is provided on the inner side of the arc-shaped plates, the inner end of the guide post is in contact with the bottom surface of the groove, and a compression spring is provided between the guide post and the inner wall of the roller.

[0006] In the aforementioned high-speed operating packing tape winding device, the guide post is provided with an annular protrusion, which is located between the adjusting shaft and the roller. The compression spring is helical and is sleeved on the guide post, located between the annular protrusion and the roller.

[0007] In the aforementioned high-speed rotating packing tape winding device, four guide posts are provided on the arc plate, and the four guide posts are evenly distributed along the length of the arc plate.

[0008] In the aforementioned high-speed rotating packing tape winding device, a rubber plate is provided on the outer side of the arc-shaped plate.

[0009] In the aforementioned high-speed operating packing strap winding device, the frame is provided with a guide sleeve, and a drive shaft is provided inside the guide sleeve. One end of the drive shaft is rotatably connected to an adjusting shaft. The drive shaft is fixed to the roller. The other end of the drive shaft is provided with a drive wheel. The drive wheel is connected to a driven wheel through a synchronous belt. The driven wheel is connected to the output end of the motor.

[0010] In the aforementioned high-speed packing tape winding device, the end of the groove that spirally extends toward the core of the adjusting shaft is connected to the outer circumferential surface of the adjusting shaft through a stepped sidewall, and the plane of the stepped sidewall passes through the axis of the adjusting shaft.

[0011] In the aforementioned high-speed rotating packing tape winding device, the width of the stepped sidewall is 1-2 mm.

[0012] Compared with existing technologies, this invention features an adjusting shaft on the inner side of the roller and an expansion tube composed of multiple arc-shaped plates on the outer side of the roller. A guide post connecting the adjusting shaft is located on the inner side of the arc-shaped plates. Rotating the adjusting shaft with a handwheel drives the guide post, causing the arc-shaped plates to move radially along the roller, changing the diameter of the expansion tube. This allows the expansion tube to establish strong friction with paper tubes of different inner diameters, preventing slippage and increasing the roller's operating speed, thus improving the production efficiency of the strapping. Therefore, this invention has the advantage of improving the production efficiency of strapping. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of this utility model.

[0014] Figure 2 This is a schematic diagram of the cross-section of the roller.

[0015] The markings in the attached diagram are as follows: 1-frame, 2-roller, 3-motor, 4-adjusting shaft, 5-groove, 6-handwheel, 7-arc plate, 8-guide post, 9-compression spring, 10-annular protrusion, 11-rubber plate, 12-guide sleeve, 13-drive shaft, 14-drive wheel, 15-synchronous belt, 16-driven wheel, 17-step sidewall. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0017] Example. High-speed rotating packing strap winding device, such as... Figure 1 As shown, the machine includes a frame 1, a roller 2 on one side of the frame 1, and a motor 3 on the frame 1 with its output end connected to the roller 2. Its features are as follows:

[0018] Roller 2 has a hollow structure and a uniform wall thickness. An adjusting shaft 4 is provided inside roller 2. The adjusting shaft 4 has a hollow structure and a uniform wall thickness.

[0019] The outer circumferential surface of the adjusting shaft 4 has six circumferentially evenly distributed grooves 5. One end of the bottom surface of each groove 5 is tangent to the outer circumferential surface of the adjusting shaft 4, and the other end of each groove 5 extends spirally toward the core of the adjusting shaft 4 and connects to the outer circumferential surface of the adjusting shaft 4 through a stepped sidewall 17. The plane of the stepped sidewall 17 passes through the axis of the adjusting shaft 4, and the width of the stepped sidewall 17 is 1-2 mm. One end of the adjusting shaft 4 extends axially out of the roller 2 and is equipped with a handwheel 6.

[0020] An expansion tube is provided on the outer side of the roller 2. The expansion tube is composed of multiple arc-shaped plates 7. A rubber plate 11 is provided on the outer side of the arc-shaped plates 7. Four guide posts 8 extending into the roller 2 are provided on the inner side of the arc-shaped plates 7. The four guide posts 8 are evenly distributed along the length of the arc-shaped plates 7. The inner end of the guide post 8 is attached to the bottom surface of the groove 5. An annular protrusion 10 is provided on the guide post 8. The annular protrusion 10 is located between the adjusting shaft 4 and the roller 2. A spiral compression spring 9 is provided between the annular protrusion 10 and the roller 2. The compression spring 9 is sleeved on the guide post 8.

[0021] The frame 1 is provided with a guide sleeve 12, and a drive shaft 13 is provided inside the guide sleeve 12. One end of the drive shaft 13 is rotatably connected to the adjustment shaft 4, preferably by a bearing connection. The drive shaft 13 is fixed to the roller 2. The other end of the drive shaft 13 is provided with a drive wheel 14. The drive wheel 14 is connected to a driven wheel 16 through a synchronous belt 15. The driven wheel 16 is connected to the output end of the motor 3.

[0022] Working principle: The compression spring 9, through the annular protrusion 10, causes the guide post 8 to move inward, giving the arc plate 7 a tendency to move inward. Turning the handwheel 6 drives the adjusting shaft 4 to rotate, bringing the guide post 8 closer to the side wall 17 of the step. At this time, the guide post 8 moves inward under the force of the compression spring 9, causing the arc plate 7 to adhere to the roller 2, allowing the paper tube to be easily placed and removed from the roller 2. After placing the paper tube on the roller 2, turning the handwheel 6 in the opposite direction causes the guide post 8 to extend outward, driving the arc plate 7 to extend outward, thus tightening the paper tube. A strong frictional force is established between the paper tube and the roller 2, preventing the paper tube from slipping when the roller 2 rotates at high speed, making operation convenient.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A high-speed rotating packing strap winding device, comprising a frame (1), a roller (2) provided on one side of the frame (1), and a motor (3) with its output end connected to the roller (2) provided on the frame (1), characterized in that: The roller (2) has a hollow structure and an adjusting shaft (4) is provided inside the roller (2). Multiple grooves (5) are provided on the outer circumferential surface of the adjusting shaft (4). One end of the bottom surface of the groove (5) is tangent to the outer circumferential surface of the adjusting shaft (4), and the other end of the groove (5) extends spirally toward the core of the adjusting shaft (4). One end of the adjusting shaft (4) extends axially out of the roller (2) and is provided with a handwheel (6). An expansion tube is provided on the outer side of the roller (2). The expansion tube is composed of multiple arc plates (7). A guide post (8) is provided on the inner side of the arc plate (7) and extends into the roller (2). The inner end of the guide post (8) is attached to the bottom surface of the groove (5). A compression spring (9) is provided between the guide post (8) and the inner wall of the roller (2).

2. The high-speed rotating packing strap winding device according to claim 1, characterized in that: The guide post (8) is provided with an annular protrusion (10), which is located between the adjusting shaft (4) and the roller (2). The compression spring (9) is spiral-shaped and is sleeved on the guide post (8). The compression spring (9) is located between the annular protrusion (10) and the roller (2).

3. The high-speed rotating packing strap winding device according to claim 1, characterized in that: The arc-shaped plate (7) is provided with four guide posts (8), which are evenly distributed along the length of the arc-shaped plate (7).

4. The high-speed rotating packing strap winding device according to claim 1, characterized in that: A rubber plate (11) is provided on the outer side of the arc-shaped plate (7).

5. The high-speed rotating packing strap winding device according to claim 1, characterized in that: The frame (1) is provided with a guide sleeve (12), and a drive shaft (13) is provided inside the guide sleeve (12). One end of the drive shaft (13) is rotatably connected to the adjustment shaft (4). The drive shaft (13) is fixed to the roller (2). The other end of the drive shaft (13) is provided with a drive wheel (14). The drive wheel (14) is connected to the driven wheel (16) through a synchronous belt (15). The driven wheel (16) is connected to the output end of the motor (3).

6. The high-speed rotating packing strap winding device according to claim 1, characterized in that: The end of the groove (5) extending spirally toward the core of the adjusting shaft (4) is connected to the outer circumferential surface of the adjusting shaft (4) through the stepped sidewall (17), and the plane of the stepped sidewall (17) passes through the axis of the adjusting shaft (4).

7. The high-speed rotating packing strap winding device according to claim 6, characterized in that: The width of the step sidewall (17) is 1-2 mm.

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