A reel device

Abstract

The utility model relates to a take-up and pay-off technology field, concretely relates to a take-up and pay-off device, including the organism, the organism inside rotationally connected with the main shaft, the main shaft one end sliding connection has the expansion core, the expansion core side part is provided with four expansion sheets, the inside of main shaft is provided with the pull rod, the pull rod is rotatably connected with the support seat through the bearing, the support seat is fixedly connected with the expansion core, the main shaft fixedly connected with chuck, the chuck sliding is provided with four fixed plates with adjacent expansion sheet fixed connection. In the utility model, through expansion core side part is provided with expansion sheet, can make the pull rod move through the bearing drive support seat, make expansion core on main shaft translation, open four expansion sheets, make four expansion sheets all rest on the inner wall of the take-up disc, like this can adapt to the fixation of different inner diameter take-up disc, and before the sleeve connection take-up disc, four expansion sheets are in the state of closing, and the overall diameter is relatively small, and the quick fixing and feeding of take-up disc are convenient.

Description

Technical Field

[0001] This utility model relates to the field of winding and unwinding technology, specifically a winding and unwinding device. Background Technology

[0002] During the winding process, the winding reel is usually placed on the shaft of the unwinding device. The shaft is driven by a motor to rotate, which in turn drives the winding reel to rotate, allowing the reel to release or wind up the material. However, the shaft diameter of existing unwinding devices is usually fixed. This means that when it is necessary to place winding reels with different inner diameters on the shaft, it is necessary to replace the shaft with one of the corresponding size. Furthermore, when the inner diameter of the winding reel is similar to the diameter of the shaft, it is inconvenient to place the winding reel on the shaft, which is not conducive to the rapid loading and unloading of the winding reel. Utility Model Content

[0003] The purpose of this invention is to provide a winding and unwinding device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A winding and unwinding device includes a body, a main shaft rotatably connected inside the body, an expansion core slidably connected to one end of the main shaft, four expansion plates disposed on the side of the expansion core, all four sides of the expansion core being inclined, and the expansion plates being inclined corresponding to the sides of the expansion core, a pull rod disposed inside the main shaft, the pull rod being rotatably connected to a support seat via a bearing, the support seat being fixedly connected to the expansion core, a chuck being fixedly connected to the main shaft, the chuck being slidably disposed with four fixing plates fixedly connected to adjacent expansion plates, and a limiting groove being provided at the end of each expansion plate for sliding connection with the chuck.

[0005] Furthermore, the support base is fixedly connected to a protective cover, which can protect the bearings on the support base.

[0006] Furthermore, the inner diameter of the spindle is larger than the diameter of the pull rod.

[0007] Furthermore, the machine body is equipped with a motor, the output shaft of the motor is equipped with a drive pulley, the main shaft is fixedly sleeved with a driven pulley, and the drive pulley and the driven pulley are connected by belt drive.

[0008] Furthermore, a cylinder is fixedly connected to the side of the machine body, a linkage block is driven to the output end of the cylinder, and the end of the pull rod is fixedly connected to the linkage block.

[0009] Furthermore, each of the four sides of the expansion core is fixedly connected with a slanted slider, and the expansion plate is provided with a slanted groove that is slidably connected to the adjacent slanted slider.

[0010] Preferably, each of the four sides of the expansion core is fixedly connected to two inclined sliders, and the expansion plate is provided with two inclined slide seats that are slidably connected to the adjacent inclined sliders.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The expansion plates on the side of the expansion core allow the winding reel to be fitted onto the four expansion plates. Then, the pull rod moves the support base via the bearing, causing the expansion core to move horizontally on the main shaft. Due to the inclined side of the expansion core and the chuck abutting against the expansion plates, all four expansion plates can be moved away from the main shaft. The expansion core then expands the four expansion plates, causing them to press against the inner wall of the winding reel. This allows for the fixing of winding reels with different inner diameters. Before fitting the winding reel, the four expansion plates are in a closed state with a relatively small overall diameter, making it easy for the winding reel to fit onto the four expansion plates and facilitating quick fixing and loading / unloading of the winding reel.

[0012] An inclined slider is fixedly connected to the side of the expansion core. The inclined slider can slide inside the inclined groove, and the expansion plate can slide along the inclined slider. The expansion plate is slidably set on the expansion core by the inclined slider and the inclined groove. Two inclined sliders can be set on each side of the expansion core as needed. The inclined sliders replace the inclined sliders. In this way, by setting two inclined sliders on each side of the expansion core, the inclined sliders have a relatively large inclination angle. When the translation distance of the pull rod is relatively small, the four expansion plates can be quickly opened by the expansion core. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a winding and unwinding device according to this utility model; Figure 2 This is a schematic diagram of the main shaft structure in this utility model; Figure 3 This is a schematic diagram of the core expansion structure in this utility model; Figure 4 This is a schematic diagram of the chuck structure in this utility model; Figure 5 This is a schematic diagram of another embodiment of the present invention.

[0014] In the diagram: 10. Machine body; 11. Motor; 13. Drive pulley; 20. Cylinder; 21. Linkage block; 30. Main shaft; 31. Driven pulley; 40. Tie rod; 41. Support seat; 50. Chuck; 51. Fixing plate; 60. Expansion core; 61. Inclined slider one; 62. Inclined slider two; 70. Expansion plate; 71. Inclined slide groove; 72. Inclined slide block; 80. Protective cover; 90. Limiting groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 In this embodiment of the present invention, a winding and unwinding device includes a body 10. A main shaft 30 is rotatably connected inside the body 10. An expansion core 60 is slidably connected to one end of the main shaft 30. Four expansion plates 70 are provided on the side of the expansion core 60. All four sides of the expansion core 60 are inclined, and the expansion plates 70 are inclined corresponding to the sides of the expansion core 60. A pull rod 40 is provided inside the main shaft 30. The pull rod 40 is rotatably connected to a support seat 41 via bearings. The support seat 41 is fixedly connected to the expansion core 60. A chuck 50 is fixedly connected to the main shaft 30. The chuck 50 has four expansion plates slidably connected to adjacent expansion plates 70. A fixed plate 51 has a limiting groove 90 at the end of the expansion plate 70 that is slidably connected to the chuck 50. The inner diameter of the main shaft 30 is larger than the diameter of the pull rod 40. Each of the four sides of the expansion core 60 is fixedly connected to a slanted slider 61. The expansion plate 70 has a slanted groove 71 that is slidably connected to the adjacent slanted slider 61. The slanted slider 61 can slide inside the slanted groove 71, and the expansion plate 70 can slide along the slanted slider 61. The expansion plate 70 is slidably set on the expansion core 60 by the slanted slider 61 and the slanted groove 71. The slanted slider 61 is trapezoidal, which can prevent the expansion plate 70 from falling directly off the expansion core 60 as much as possible.

[0017] Specifically, the take-up reel can be fitted onto the four expansion plates 70, and then the pull rod 40 drives the support base 41 to move through the bearing, so that the expansion core 60 moves horizontally on the main shaft 30. Since the side of the expansion core 60 is inclined, and the ends of the expansion plates 70 and the fixing plate 51 can be fitted onto the protrusion of the chuck 50, the expansion plates 70 can slide relative to the expansion core 60 along the inclined slider 61. The limiting groove 90 on the expansion plate 70 and the fixing plate 51 can move horizontally along the protrusion of the chuck 50, so that the four expansion plates 70 move away from the main shaft 30, thereby expanding the four expansion plates 70 through the expansion core 60, so that the four expansion plates 70 abut against the inner wall of the take-up reel. This can accommodate the fixing of take-up reels with different inner diameters. Before the take-up reel is fitted, the four expansion plates 70 are in a closed state, and the overall diameter is relatively small, which makes it easy for the take-up reel to be fitted onto the four expansion plates 70, and facilitates the quick fixing and loading / unloading of the take-up reel. After the take-up reel is placed on the expansion plate 70, the main shaft 30 can drive the chuck 50 to rotate. The chuck 50 can drive the expansion plate 70 to rotate through the limiting groove 90, thereby causing the expansion core 60 and the support base 41 to rotate. The support base 41 can rotate on the pull rod 40, and the expansion plate 70 can drive the take-up reel to rotate, thereby taking in and unwinding the material. After taking in and unwinding, the pull rod 40 can be moved in the opposite direction, causing the support base 41 to drive the expansion core 60 to move in the opposite direction. Since the fixed plate 51 and the end of the expansion plate 70 are fitted on the protrusion of the chuck 50, the chuck 50 can prevent the expansion plate 70 from moving towards the support base 41 through the fixed plate 51. When the expansion core 60 moves in the opposite direction, the limiting groove 90 on the expansion plate 70 can move along the end of the chuck 50 towards the main shaft 30, thereby closing the four expansion plates 70. Then the take-up reel can be removed from the four expansion plates 70. Example

[0018] like Figure 2 and Figure 3 As shown, in this embodiment, a protective cover 80 is fixedly connected to the support base 41, and the protective cover 80 can protect the bearing on the support base 41.

[0019] In practice, screws can be passed through the inside of the protective cover 80 and the support base 41, and screwed onto the expansion core 60. In this way, the protective cover 80 can be fixed to the support base 41 and the expansion core 60 can be fixed to the support base 41. The protective cover 80 can cover the end of the pull rod 40 and protect the support base 41 and its bearings.

[0020] like Figure 1 As shown, in this embodiment, a motor 11 is provided inside the machine body 10, and a drive pulley 13 is provided on the output shaft of the motor 11. A driven pulley 31 is fixedly sleeved on the main shaft 30, and the drive pulley 13 and the driven pulley 31 are connected by belt drive.

[0021] In practice, after the take-up reel is placed on the four expansion plates 70 and the four expansion plates 70 are spread open, the output shaft of the motor 11 drives the drive pulley 13 to rotate. The drive pulley 13 drives the driven pulley 31 to rotate via a belt. The driven pulley 31 drives the main shaft 30 to rotate within the machine body 10. The main shaft 30 drives the chuck 50 to rotate. The chuck 50 drives the expansion plates 70 to rotate via the limiting groove 90, thereby causing the take-up reel to rotate. The expansion plates 70 drive the expansion core 60 to rotate via the inclined slider 61 and the inclined groove 71, causing the support base 41 to rotate on the pull rod 40. When the take-up reel rotates in the forward direction, it can take up the material, and when the take-up reel rotates in the reverse direction, it can unwind the material.

[0022] like Figure 1As shown, in this embodiment, a cylinder 20 is fixedly connected to the side of the machine body 10, and a linkage block 21 is driven to the output end of the cylinder 20. The end of the pull rod 40 is fixedly connected to the linkage block 21. The main shaft 30 can support one end of the pull rod 40 through the expansion core 60, and the cylinder 20 can support the other end of the pull rod 40 through the linkage block 21.

[0023] In practice, after the take-up reel is placed on the four expansion plates 70, the cylinder 20 can drive the linkage block 21 to move. The linkage block 21 can drive the pull rod 40 to move, thereby causing the pull rod 40 to move within the main shaft 30. The pull rod 40 can drive the support seat 41 to move through the bearing. The support seat 41 can drive the expansion core 60 to move, thereby expanding the four expansion plates 70 through the expansion core 60. Example

[0024] Based on Example 1, such as Figure 5 As shown, in this embodiment, two inclined sliders 62 are fixedly connected to each of the four sides of the expansion core 60, and the expansion plate 70 is provided with two inclined slide seats 72 that are slidably connected to the adjacent inclined sliders 62.

[0025] In specific implementation, inclined slider 2 62 can be selected to replace inclined slider 1 61 as needed. Two inclined slider 2 62 sections are set on each side of the expansion core 60, and two inclined slide blocks 72 are set on one expansion plate 70, so that the inclined slider 2 62 is slidably connected to the adjacent inclined slide blocks 72. The length of the inclined slider 2 62 is relatively short, and the tilt angle of the inclined slider 2 62 is relatively large. When the translation distance of the pull rod 40 is relatively small, the four expansion plates 70 can be quickly opened by the expansion core 60. Compared with the inclined slider 1 61, the adjustment speed is faster and the adjustment range is larger when using two inclined slider 2 62 sections, but the adjustment accuracy is relatively poor.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A winding and unwinding device, comprising a body (10), wherein a main shaft (30) is rotatably connected inside the body (10), characterized in that, One end of the main shaft (30) is slidably connected to an expansion core (60). The expansion core (60) has four expansion plates (70) on its side. The main shaft (30) has a pull rod (40) inside. The pull rod (40) is rotatably connected to a support seat (41) through a bearing. The support seat (41) is fixedly connected to the expansion core (60). The main shaft (30) is fixedly connected to a chuck (50). The chuck (50) is slidably provided with four fixing plates (51) that are fixedly connected to adjacent expansion plates (70). The ends of the expansion plates (70) are provided with limiting grooves (90) that are slidably connected to the chuck (50).

2. The winding and unwinding device according to claim 1, characterized in that, The support base (41) is fixedly connected to a protective cover (80).

3. The winding and unwinding device according to claim 1, characterized in that, The inner diameter of the spindle (30) is larger than the diameter of the tie rod (40).

4. The winding and unwinding device according to claim 1, characterized in that, The machine body (10) is equipped with a motor (11), the output shaft of the motor (11) is equipped with a drive pulley (13), the main shaft (30) is fixedly sleeved with a driven pulley (31), and the drive pulley (13) and the driven pulley (31) are connected by belt drive.

5. The winding and unwinding device according to claim 1, characterized in that, A cylinder (20) is fixedly connected to the side of the body (10), and a linkage block (21) is driven to the output end of the cylinder (20). The end of the pull rod (40) is fixedly connected to the linkage block (21).

6. The winding and unwinding device according to any one of claims 1-5, characterized in that, The expansion core (60) has four sides fixedly connected with inclined sliders (61), and the expansion plate (70) has inclined grooves (71) that are slidably connected to the adjacent inclined sliders (61).

7. The winding and unwinding device according to any one of claims 1-5, characterized in that, The expansion core (60) has two oblique sliders (62) fixedly connected to each of its four sides, and the expansion plate (70) is provided with two oblique slides (72) that are slidably connected to the adjacent oblique sliders (62).

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