Unwinding device suitable for cloth tape rolls with different widths and different inner diameters

Abstract

The utility model discloses an unwinding device suitable for cloth tape rolls with different widths and different inner diameters, which comprises a main support and an unwinding component used for placing the cloth tape rolls, and a guide mechanism is mounted in front of the unwinding component. The unwinding assembly comprises an unwinding shaft and a fixed disc body, the unwinding shaft is provided with a hollow shell with openings in the two ends, a magnetic powder tensioner is installed on a connecting shaft at one end of the hollow shell, a core shaft extending out of the other end of the hollow shell is arranged in the hollow shell, and the extending end of the core shaft is connected with the hollow shell through a bearing; a plurality of tensioning blocks are arranged on the portion, in the hollow shell, of the central spindle in the circumferential direction, the tensioning blocks are connected with the central spindle in a sliding mode through an adjusting mechanism, and long-strip-shaped holes for the tensioning blocks to stretch out are formed in the side wall of the hollow shell. According to the unwinding device, the unwinding shaft with the tensioning block is arranged, the tensioning block is tightly matched with a cloth tape roll, the stability in the unwinding process is guaranteed, the unwinding device is suitable for cloth tape rolls with different widths, the unwinding device is suitable for cloth tape rolls with different inner diameters through the screw rod section and the nut, and the use flexibility of the unwinding device is improved.

Description

Technical Field

[0001] This utility model relates to a fabric tape winding device, and more particularly to an unwinding device suitable for fabric tape rolls of different widths and inner diameters. Background Technology

[0002] Traditional tape unwinding devices have a relatively simple structure, typically consisting of a spring and a friction plate mounted on the axle of a tensioning wheel. The tension of the tape is adjusted by pressing the friction plate against the spring. While existing technologies disclose various tape unwinding devices, these devices only address the issue of unstable tension during the tape unwinding process. However, these unwinding devices are only applicable to tape rolls of a single size and lack versatility. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a reasonable design, simple structure, and unwinding device for fabric rolls of different widths and inner diameters, which addresses the shortcomings of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A winding device suitable for fabric tape rolls of different widths and inner diameters is disclosed. The device includes a main support and an unwinding assembly for holding the fabric tape rolls, with a guide mechanism installed in front of the unwinding assembly. The unwinding assembly includes an unwinding shaft and a fixed disc located in the middle of the unwinding shaft. The unwinding shaft is mounted on the main support via bearings. The unwinding shaft has a hollow shell with openings at both ends. End caps are provided at both ends of the hollow shell, and a connecting shaft extending outwards is located at the center of each end cap. A magnetic powder tensioner is installed on the connecting shaft at one end of the hollow shell. The hollow shell contains... A mandrel extends from the other end of the hollow shell. The extended end of the mandrel is connected to the hollow shell via a bearing. A knob is installed on the extended end of the mandrel. Several tensioning blocks are arranged circumferentially on the mandrel inside the hollow shell, which are tightly fitted with the central drum of the fabric roll. An adjustment mechanism for adjusting the outer diameter of the tensioning blocks is provided on the mandrel. The tensioning blocks are slidably connected to the mandrel through the adjustment mechanism. The side wall of the hollow shell is provided with elongated holes for the tensioning blocks to extend out and with a limiting function. The elongated holes are arranged one-to-one with the tensioning blocks, and the length of the elongated holes is greater than the length of the tensioning blocks.

[0006] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the guiding mechanism includes a guide rod arranged parallel to the axis of the mounting shaft. There are two guide rods, which are arranged vertically to realize the vertical winding of the fabric tape and tighten the fabric tape.

[0007] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the unwinding assembly and the guiding mechanism are provided in two sets, one set is used normally and the other set is a spare.

[0008] The technical problem to be solved by this utility model can also be achieved through the following technical solution: a front bracket for installing a guide mechanism is provided in front of the main bracket, a number of mounting holes are provided on the main bracket, the mounting holes are arranged side by side in the horizontal direction, and a fastening bolt that cooperates with the mounting holes is provided on the front bracket, so as to facilitate the adjustment of the distance between the guide mechanism and the unwinding assembly.

[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: a slider is provided at the bottom of the main support to facilitate the adjustment of the position of the main support, a slot is provided on the slider, and a top screw is provided in the slot to facilitate the installation of the main support, so as to facilitate the adjustment of the position of the entire device and improve the flexibility of the device.

[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the adjustment mechanism includes a lead screw section on the mandrel and a lead screw nut that cooperates with the lead screw section; the inner side of the tensioning block is provided with an arc-shaped guide rail arranged along the axis of the mandrel; the side wall of the lead screw nut is provided with a sliding groove that cooperates with the arc-shaped guide rail; the lead screw section is provided with two sections, front and rear; the lead screw nut is provided with two sections, front and rear; the thread of the front section of the lead screw section is opposite to the thread direction of the rear section of the lead screw section.

[0011] Compared with the prior art, this utility model, by incorporating an unwinding shaft with a tension block, ensures stability during the unwinding process through the tight cooperation between the tension block and the fabric roll. Furthermore, the tension block's cooperation with the central drum of the fabric roll allows for the use of fabric rolls of varying widths. The inclusion of a lead screw section, a lead nut, and an arc-shaped guide rail facilitates adjustment of the outer diameter of the tension block to accommodate fabric rolls with different inner diameters, thus improving the device's flexibility and expanding its application range. Finally, the inclusion of a knob makes adjusting the position of the tension block easier, enhancing usability. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the unwinding device for fabric rolls of different widths and inner diameters as described in this utility model;

[0013] Figure 2 for Figure 1 The front view;

[0014] Figure 3 This is a structural diagram of the unwinding spool;

[0015] Figure 4 This is an external view of the unwinding spool;

[0016] Figure 5 This is a structural diagram of the adjustment mechanism.

[0017] In the diagram: 1-Main support, 2-Front support, 3-Fabric roll, 4-Fixing disc, 5-Bearing seat, 6-Magnetic powder tensioner, 7-Top screw, 8-Slider, 9-Guide rod, 10-Unwinding shaft, 11-Knob, 12-Mandrel, 13-Screw section, 14-Screw nut, 15-Hollow housing, 16-Tensioning shaft, 17-Connecting shaft, 18-Bearing, 19-Elongated hole, 20-Arc-shaped guide rail. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0020] Reference Figure 1-5 A winding device suitable for fabric rolls of different widths and inner diameters is disclosed. The device includes a main support 1 and a winding assembly for holding the fabric roll 3. A guide mechanism is installed in front of the winding assembly. The winding assembly includes a winding shaft 10 and a fixed disc 3 sleeved in the middle of the winding shaft 10. The fixed disc 3 is fixedly connected to the winding shaft and can be tensioned. The winding shaft 10 is mounted on the main support 1 via a bearing 18 and a bearing seat 5. The winding shaft 10 has a hollow shell 15 with openings at both ends. End caps are provided at both ends of the hollow shell 15, and the end caps are bolted to the ends of the hollow shell 15. A connecting shaft 17 extending outwards is provided at the center of the end caps. The connecting shaft 17 is integral with the end caps and is mounted on the main support 1 via bearings. One end of the hollow shell 15... A magnetic powder tensioner 6 is installed on the connecting shaft 17. A mandrel 12 extending from the other end of the hollow housing 15 is provided inside the hollow housing 15. The extended end of the mandrel 12 is connected to the hollow housing 15 through a bearing. A knob 11 is installed on the extended end of the mandrel 12 to facilitate the adjustment of the position of the tensioning blocks. The mandrel 12 inside the hollow housing 15 is provided with a number of tensioning blocks 16 that are tightly fitted with the central drum of the fabric roll. An adjustment mechanism for adjusting the outer diameter of the tensioning blocks is provided on the mandrel. The tensioning blocks 16 are slidably connected to the mandrel 12 through the adjustment mechanism. An elongated hole 19 is provided on the side wall of the hollow housing 15 for the tensioning blocks 16 to extend out and has a limiting function. The elongated hole 19 is provided one-to-one with the tensioning blocks 16. The length of the elongated hole 19 is greater than the length of the tensioning block 16.

[0021] The guiding mechanism includes two guide rods 9 arranged parallel to the axis of the mounting shaft, with the two guide rods 9 arranged vertically. The unwinding assembly and the guiding mechanism are provided in two sets, one set in use and the other set as a spare.

[0022] A front bracket 2 for mounting a guide mechanism is provided in front of the main bracket 1. The main bracket 1 has several mounting holes arranged side by side in a horizontal direction. The front bracket is provided with fastening bolts that cooperate with the mounting holes, which facilitates the adjustment of the position of the guide mechanism and improves the applicability of the device.

[0023] A slider 8 is provided at the bottom of the main support to facilitate the adjustment of the position of the main support. The slider 8 is provided with a slot, and a top screw 7 is provided in the slot to facilitate the installation of the main support, so as to facilitate the adjustment of the position of the entire device on the winding machine.

[0024] The adjusting mechanism includes a lead screw section 13 mounted on a spindle 12 and a lead screw nut 14 that mates with the lead screw section 13. An arc-shaped guide rail 20 is provided on the inner side of the tensioning block along the axis of the spindle, and a sliding groove that mates with the arc-shaped guide rail 20 is provided on the side wall of the lead screw nut. The lead screw section has two sections, front and rear, and the lead screw nut has two sections, front and rear. The thread direction of the front section of the lead screw section is opposite to that of the thread direction of the rear section of the lead screw section.

[0025] When adjusting the outer diameter of the tensioning block 16, the spindle 12 is rotated by the knob 11. Under the limitation of the elongated hole 19, the nut 14 can only move along the axial direction of the spindle 12. While moving, the groove on the nut 14 slides and engages with the arc-shaped guide rail 20. By changing the position of the nut 14 on the arc-shaped guide rail, the tensioning block 16 rises and falls within the elongated hole 19, thereby changing the extension height of the tensioning block within the elongated hole, and thus changing the outer diameter of the tensioning block. This is suitable for fabric rolls with different inner diameters and can also achieve tensioning of the fabric roll. Since there are two nuts, the force at both ends of the tensioning block is even. By setting the screw sections in opposite directions on the spindle, the two nuts can be brought together or separated along the axial direction of the spindle.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A unwinding device suitable for fabric rolls of different widths and inner diameters, the device comprising a main support and an unwinding assembly for placing the fabric rolls, wherein a guide mechanism is installed in front of the unwinding assembly; characterized in that, The unwinding assembly includes an unwinding shaft and a fixed disc located in the middle of the unwinding shaft. The unwinding shaft is mounted on a main support via bearings. The unwinding shaft has a hollow housing with openings at both ends. End caps are provided at both ends of the hollow housing. A connecting shaft extending outwards is located at the center of the end caps. A magnetic powder tensioner is installed on the connecting shaft at one end of the hollow housing. A mandrel extending from the other end of the hollow housing is provided inside the hollow housing. The extended end of the mandrel is connected to the hollow housing via a bearing. A knob is installed on the extended end of the mandrel. Several tensioning blocks are provided circumferentially on the mandrel inside the hollow housing, which are tightly fitted with the central drum of the fabric roll. An adjustment mechanism for adjusting the outer diameter of the tensioning blocks is provided on the mandrel. The tensioning blocks are slidably connected to the mandrel via the adjustment mechanism. An elongated hole with a limiting function is provided on the side wall of the hollow housing for the tensioning blocks to extend out. The elongated hole is provided one-to-one with the tensioning block, and the length of the elongated hole is greater than the length of the tensioning block.

2. The unwinding device for fabric rolls of different widths and inner diameters according to claim 1, characterized in that, The guiding mechanism includes two guide rods arranged parallel to the axis of the mounting shaft, with the two guide rods arranged one above the other.

3. A winding device suitable for fabric rolls of different widths and inner diameters according to claim 1 or 2, characterized in that, Two sets of each of the unwinding assembly and guiding mechanism are provided.

4. The unwinding device for fabric rolls of different widths and inner diameters according to claim 1, characterized in that, A front bracket for installing a guide mechanism is provided in front of the main bracket. The main bracket has several mounting holes arranged side by side in a horizontal direction. The front bracket is provided with fastening bolts that mate with the mounting holes.

5. The unwinding device for fabric rolls of different widths and inner diameters according to claim 1, characterized in that, The bottom of the main bracket is provided with a slider to facilitate the adjustment of the position of the main bracket. The slider is provided with a slot, and the slot is provided with a set screw to facilitate the installation of the main bracket.

6. The unwinding device for fabric rolls of different widths and inner diameters according to claim 1, characterized in that, The adjusting mechanism includes a lead screw section mounted on a mandrel and a nut that mates with the lead screw section. The inner side of the tensioning block is provided with an arc-shaped guide rail arranged along the axis of the mandrel, and the side wall of the nut is provided with a sliding groove that mates with the arc-shaped guide rail. The lead screw section is provided with two sections, front and rear, and the nut is provided with two sections, front and rear. The thread of the front section of the lead screw section is opposite to the thread direction of the rear section of the lead screw section.

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