Tensioning shaft assembly

Abstract

The utility model belongs to metal strip winding equipment technical field relates to a kind of tensioning shaft assembly, including base plate, the outer surface of one side of base plate is rotatably connected with adjusting shaft, the outer surface of one side of base plate is slidably connected with four support plates, the outer surface of one side of each support plate is fixedly connected with driven guide seat, the inclined plane of each driven guide seat is provided with guide dovetail groove;And rotating shaft sleeve, the rotating shaft sleeve is sleeved on adjusting shaft, and rotating shaft sleeve is threadedly connected with adjusting shaft, the circumferential outer surface of rotating shaft sleeve is fixedly connected with four driving guide seats, four driving guide seats and four driven guide seats are respectively adhered, the inclined plane of four driving guide seats is fixedly connected with guide dovetail block. It is through simple operation, realizes the synchronous expansion and shrinkage of four support plates high accuracy, to ensure that the extremely high concentricity of winding product, simultaneously has the characteristics such as simple operation, structure rigidity is strong and operation is reliable.

Description

Technical Field

[0001] This utility model relates to a tensioning shaft assembly, belonging to the technical field of metal strip winding equipment. Background Technology

[0002] In the metal processing industry, especially in the winding and unwinding processes of metal strips such as steel sheets and stainless steel strips, the tensioning shaft assembly is one of the core functional components. Its core function is to provide adjustable radial support force to accommodate drums or initial coils of different inner diameters, and to ensure constant tension during high-speed winding, thereby obtaining high-quality coils with neat shape and uniform internal stress.

[0003] In existing technologies, tensioning shafts commonly employ wedge-type or linkage-type structures to achieve radial expansion of the tensioning plates. For example, multiple independent pneumatic or hydraulic cylinders drive each tensioning plate separately, or a complex linkage mechanism drives the tensioning plates to move. However, these traditional structures have the following obvious drawbacks: poor synchronization, difficulty in guaranteeing winding quality, complex structure, and inconvenient operation and maintenance. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a tensioning shaft assembly, which achieves high-precision synchronous expansion and contraction of four tensioning plates through simple operation, thereby ensuring extremely high concentricity of the wound product, and at the same time has the characteristics of easy operation, strong structural rigidity and reliable operation.

[0005] According to the technical solution provided by this utility model, the tensioning shaft assembly includes: A base plate, on one outer surface of which an adjusting shaft is rotatably connected, and four tensioning plates are slidably connected to one outer surface of which each tensioning plate is fixedly connected to one outer surface of which a driven guide seat is fixedly connected, and each driven guide seat has a guide dovetail groove on its inclined surface; and a rotating bushing, which is sleeved on the adjusting shaft and threadedly connected to the adjusting shaft, and four active guide seats are fixedly connected to the outer circumference of the rotating bushing, with the four active guide seats respectively fitting into the four driven guide seats, and guide dovetail blocks fixedly connected to the inclined surfaces of the four active guide seats, with the four guide dovetail blocks slidably connected inside the four guide dovetail grooves.

[0006] As a further improvement of this utility model, four limiting dovetail grooves are provided on one side of the outer surface of the base plate, and limiting dovetail blocks are fixedly connected to one side of the outer surface of the four supporting plates. The four limiting dovetail blocks are slidably connected to the inside of the four limiting dovetail grooves.

[0007] As a further improvement of this utility model, four limiting rods are fixedly connected to one outer surface of the base plate, and the rotating bushing is slidably sleeved on the four limiting rods.

[0008] As a further improvement of this utility model, the four limiting rods are evenly distributed in a ring array on one side of the outer surface of the base plate.

[0009] As a further improvement of this utility model, a rubber plate is fixedly connected to one side of the outer surface of each of the four support plates.

[0010] As a further improvement of this utility model, guide grooves are provided on the outer surface of the other side of each of the four support plates.

[0011] Compared with existing technologies, this utility model has the following advantages: The tensioning shaft assembly of this utility model has a reasonable and ingenious structure. The four tensioning plates are used for winding metal strips such as steel sheets. By controlling the rotation of the adjusting shaft, the rotating bushing moves towards the base plate. The four active guide seats will squeeze the four driven guide seats, thereby expanding the four tensioning plates. By controlling the reverse rotation of the adjusting shaft, the rotating bushing moves away from the base plate. At this time, the four guide dovetail blocks on the four active guide seats cooperate with the four guide dovetail grooves on the four driven guide seats, which will cause the four driven guide seats to contract, thereby causing the four tensioning plates to contract. Through simple operation, the high-precision synchronous expansion and contraction of the four tensioning plates can be achieved, thereby ensuring the extremely high concentricity of the wound product. It also has the characteristics of simple operation, strong structural rigidity and reliable operation. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is an exploded view of the present invention.

[0014] Figure 3 This is a partial three-dimensional view of the structure of this utility model.

[0015] Figure 4 This is a three-dimensional view of the rotating bushing of this utility model.

[0016] Figure 5 This is a three-dimensional view of the driven guide seat of this utility model.

[0017] Figure 6 This is a cross-sectional view of the base plate of this utility model. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] like Figure 1-6 As shown, it includes a base plate 1, a limiting dovetail groove 2, an adjusting shaft 3, a rotating bushing 4, an active guide seat 5, a limiting rod 6, a tensioning plate 7, a driven guide seat 8, a rubber plate 9, a guide groove 10, a guide dovetail block 11, and a limiting dovetail block 12.

[0021] like Figures 1-6 As shown, the tensioning shaft assembly of this utility model includes: A base plate 1 has an adjusting shaft 3 rotatably connected to one outer surface of its base plate 1, and four support plates 7 slidably connected to one outer surface of its base plate 1. Each support plate 7 has a driven guide seat 8 fixedly connected to one outer surface of its base plate 1, and each driven guide seat 8 has a guide dovetail groove on its inclined surface. Rotary bushing 4 is sleeved on adjusting shaft 3 and threadedly connected to adjusting shaft 3. Four active guide seats 5 are fixedly connected to the outer circumference of rotating bushing 4. The four active guide seats 5 are respectively in contact with four driven guide seats 8. Guide dovetail blocks 11 are fixedly connected to the inclined surfaces of the four active guide seats 5. The four guide dovetail blocks 11 are respectively slidably connected to the inside of the four guide dovetail grooves.

[0022] In a specific embodiment of this utility model, four tensioning plates 7 are used for winding metal strips such as steel sheets. By controlling the rotation of the adjusting shaft 3, the rotating bushing 4 is driven to move towards the base plate 1. The four active guide seats 5 will push open the four driven guide seats 8, thereby causing the four tensioning plates 7 to expand. By controlling the rotation of the adjusting shaft 3 in the opposite direction, the rotating bushing 4 is driven to move away from the base plate 1. At this time, the four guide dovetail blocks 11 on the four active guide seats 5 cooperate with the four guide dovetail grooves on the four driven guide seats 8, which will drive the four driven guide seats 8 to contract, thereby causing the four tensioning plates 7 to contract. Through simple operation, the high-precision synchronous expansion and contraction of the four tensioning plates 7 can be achieved, thereby ensuring the extremely high concentricity of the wound product. It also has the characteristics of simple operation, strong structural rigidity and reliable operation.

[0023] Specifically, four limiting dovetail grooves 2 are provided on one outer surface of the base plate 1, and limiting dovetail blocks 12 are fixedly connected to one outer surface of each of the four supporting plates 7. The four limiting dovetail blocks 12 are slidably connected to the inside of the four limiting dovetail grooves 2.

[0024] In this embodiment, the four limiting dovetail blocks 12 and the four limiting dovetail grooves 2 cooperate to ensure that the four supporting plates 7 can only move while maintaining a vertical position relative to the base plate 1.

[0025] Specifically, four limiting rods 6 are fixedly connected to one outer surface of the base plate 1, and the rotating bushing 4 is slidably sleeved on the four limiting rods 6.

[0026] In this embodiment, the four limiting rods 6 ensure that the rotating bushing 4 remains stable during movement and does not rotate.

[0027] Specifically, the four limiting rods 6 are evenly distributed in a ring array on one side of the outer surface of the base plate 1.

[0028] In this embodiment, the four limiting rods 6 are arranged in a ring array, which is not only aesthetically pleasing but also provides better structural stability.

[0029] Specifically, rubber plates 9 are fixedly connected to one side of the outer surface of each of the four support plates 7.

[0030] In this embodiment, the purpose of the rubber plate 9 is to increase friction, prevent slippage, protect the surface of the steel sheet, and prevent scratches and indentations.

[0031] Specifically, guide grooves 10 are provided on the outer surface of the other side of each of the four support plates 7.

[0032] In this embodiment, the four guide slots 10 are used for the four active guide seats 5 to enter, thereby providing storage space for the purpose of shrinking the four support plates 7. Otherwise, when the four active guide seats 5 are in contact with the four support plates 7, the four support plates 7 can no longer shrink, but can only expand.

[0033] Working principle: The four tensioning plates 7 are used for winding metal strips such as steel sheets. By controlling the rotation of the adjusting shaft 3, the rotating bushing 4 moves towards the base plate 1. The four active guide seats 5 will push open the four driven guide seats 8, thereby expanding the four tensioning plates 7. By controlling the rotation of the adjusting shaft 3 in the opposite direction, the rotating bushing 4 moves away from the base plate 1. At this time, the four guide dovetail blocks 11 on the four active guide seats 5 cooperate with the four guide dovetail grooves on the four driven guide seats 8, which will drive the four driven guide seats 8 to contract, thereby causing the four tensioning plates 7 to contract. Through simple operation, the high-precision synchronous expansion and contraction of the four tensioning plates 7 can be achieved, thereby ensuring the extremely high concentricity of the wound product. It also has the characteristics of simple operation, strong structural rigidity and reliable operation.

[0034] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tensioning shaft assembly, characterized in that, include: A base plate (1) has an adjusting shaft (3) rotatably connected to one outer surface of the base plate (1), and four support plates (7) slidably connected to one outer surface of the base plate (1). Each support plate (7) has a driven guide seat (8) fixedly connected to one outer surface of its side, and each driven guide seat (8) has a guide dovetail groove on its inclined surface. Rotary bushing (4), the rotating bushing (4) is sleeved on the adjusting shaft (3), and the rotating bushing (4) is threadedly connected to the adjusting shaft (3). Four active guide seats (5) are fixedly connected to the outer circumference of the rotating bushing (4). The four active guide seats (5) are respectively in contact with the four driven guide seats (8). Guide dovetail blocks (11) are fixedly connected to the inclined surfaces of the four active guide seats (5). The four guide dovetail blocks (11) are respectively slidably connected to the inside of the four guide dovetail grooves.

2. The tensioning shaft assembly as described in claim 1, characterized in that: The base plate (1) has four limiting dovetail grooves (2) on one side of its outer surface. The four supporting plates (7) are fixedly connected to limiting dovetail blocks (12) on one side of their outer surfaces. The four limiting dovetail blocks (12) are slidably connected to the inside of the four limiting dovetail grooves (2).

3. The tensioning shaft assembly as described in claim 1, characterized in that: Four limiting rods (6) are fixedly connected to one side of the outer surface of the base plate (1), and the rotating bushing (4) is slidably sleeved on the four limiting rods (6).

4. The tensioning shaft assembly as described in claim 3, characterized in that: The four limiting rods (6) are evenly distributed in a ring array on one side of the outer surface of the base plate (1).

5. The tensioning shaft assembly as described in claim 1, characterized in that: Rubber plates (9) are fixedly connected to one side of the outer surface of each of the four support plates (7).

6. The tensioning shaft assembly as claimed in claim 1, characterized in that: Guide grooves (10) are provided on the outer surface of the other side of each of the four support plates (7).

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