Tensioning mechanism of loop wire cutting machine

Abstract

The utility model relates to a tensioning mechanism of a loop line cutting machine, which comprises a spring, a spring seat, a guide rod, a sliding block and a linear driving piece, one end of the guide rod is connected with the spring seat, the guide rod is sleeved with the spring, the other end of the guide rod penetrates through a limiting plate, and the limiting plate is assembled on the guide rod in a sliding mode; one end of the spring abuts against the spring seat, and the other end of the spring abuts against the limiting plate; the linear driving piece is arranged on the sliding block and can drive the sliding block to move in one direction, the limiting plate is connected with the sliding block, and the sliding block is provided with an installation part for installing a wire wheel. By the adoption of the tensioning mechanism, on the premise that the normal tensioning effect is achieved, the diamond loop line can be conveniently replaced, and then the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loop wire cutting machines, in particular to a tensioning mechanism of a loop wire cutting machine. Background Art

[0002] For the cutting of hard and brittle materials, the use of diamond wire saws has the advantages of narrow cutting seams, high efficiency, good slice quality, and curve cutting, and has become a widely used cutting technology. The wire cutting machine mainly includes a driving wire wheel, a driven wire wheel, a diamond ring wire, a workbench, etc. There is at least one driven wire wheel, and the diamond ring wire is wound on the main and driven wire wheels. As the wire wheel rotates at high speed to cut the workpiece, a tensioning wheel or a tensioning member is generally required. For example, a tensioning device of a wire cutting machine disclosed in the utility model patent with authorization announcement number CN208262026U includes a tensioning frame, upper and lower tensioning wheels, and a counterweight block connected to the far end of the tensioning wire. The tensioning wire is tensioned by the counterweight block pulling the tensioning wheel. The tensioning of this structure is a traditional conventional tensioning method, and the structure is relatively complex. In addition, when the cutting wire is replaced later, the counterweight block needs to be manually released. When rewinding, it needs to pass through the driving wire wheel, the driven wire wheel and each tensioning wheel, and then the counterweight block is reinstalled, which is not convenient enough. There are also wire cutting machines that do not use counterweights, but only use a spring mechanism, using spring force to tension the tensioning wheel. However, there is also the problem of inconvenience in operation when changing the line later. Utility Model Content

[0003] The utility model aims to provide a tensioning mechanism for a ring wire cutting machine to solve the problem of inconvenience in replacing a diamond ring wire.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A tensioning mechanism for a circular wire cutting machine includes a spring, a spring seat, a guide rod, a slider and a linear drive component, wherein one end of the guide rod is connected to the spring seat, the spring is sleeved on the guide rod, the other end of the guide rod passes through a limit plate, and the limit plate is slidably assembled on the guide rod; one end of the spring abuts against the spring seat, and the other end abuts against the limit plate; the linear drive component is arranged on the slider and can drive the slider to move in one direction, the limit plate is connected to the slider, and the slider has a mounting portion for mounting a wire wheel.

[0006] Furthermore, the spring seat includes a fixed seat and a movable seat, the fixed seat is fixed on the frame, the movable seat is slidably assembled on the guide rod, the other end of the spring is abutted against the movable seat, the fixed seat is provided with an adjusting piece, the adjusting piece is threadedly assembled on the fixed seat, and one end of the adjusting piece presses against the movable seat.

[0007] Furthermore, the linear drive member adopts an electric push rod, and when the electric push rod moves, it pushes the slider back to compress the spring.

[0008] Furthermore, the sliding block is slidably assembled on a sliding rail, the length direction of the sliding rail is consistent with the length direction of the guide rod, and the sliding rail is fixed on the frame.

[0009] Furthermore, the frame includes a lifting plate, a notch is provided on the lifting plate, the axle of the wire wheel passes through the notch and is fixed on a slider, and the wire wheel and the slider are respectively located on two sides of the lifting plate.

[0010] Furthermore, the wire wheel is a driven wire wheel, and a driving wire wheel is also arranged on the lifting plate, and diamond ring wire is wound around the driven wire wheel and the driving wire wheel.

[0011] Beneficial effects of the utility model:

[0012] The tensioning mechanism of the circular wire cutting machine of the utility model utilizes a compressed spring for tensioning during normal use; when the diamond circular wire needs to be replaced, the linear drive component is started to drive the slider to move, and the spring is continuously compressed to overcome the spring tensioning force, thereby relaxing the diamond circular wire and facilitating its removal and replacement with a new one. After the diamond circular wire is reinstalled, the linear drive component is reset, and the new diamond circular wire is in a tensioned state, and the linear drive component no longer works, and the spring plays a tensioning role at this time. The tensioning mechanism can meet the normal tensioning effect while conveniently replacing the diamond circular wire, thereby improving production efficiency.

[0013] Furthermore, the spring seat is designed to be composed of two parts, one fixed and the other movable, and the spring is in contact with the movable seat. By adjusting the position of the movable seat on the guide rod, the initial compression degree of the spring can be adjusted and the tensioning force can be changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of a tensioning mechanism of a circular wire cutting machine of the utility model after being installed on a frame;

[0015] Figure 2 yes Figure 1 A three-dimensional view of the structure from another angle;

[0016] Figure 3 The utility model is a structural schematic diagram of a tensioning mechanism of a circular wire cutting machine.

[0017] 1. Lifting plate; 2. Diamond loop wire; 3. Driven wire wheel; 4. Motor; 51. Sliding block; 52. Slide rail; 53. Limiting plate; 6. Guide rod; 7. Electric push rod; 81. Fixed seat; 82. Movable seat; 811. Threaded hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0019] Embodiments of the present utility model:

[0020] like Figure 1-Figure 3 As shown, a tensioning mechanism of a ring wire cutting machine includes a spring, a spring seat, a guide rod 6, a slider 51 and a linear drive member. One end of the guide rod 6 is connected to the spring seat, and the spring is sleeved on the guide rod 6. The other end of the guide rod 6 passes through a limit plate 53, and the limit plate 53 is slidably assembled on the guide rod 6; one end of the spring abuts against the spring seat, and the other end abuts against the limit plate 53, and is in a compressed state. The linear drive member is arranged on the slider 51 and can drive the slider 51 to move in one direction, and the limit plate 53 is connected to the slider 51. Under normal circumstances, the tensioning effect is achieved by the spring. When the linear drive member is actuated, the slider 51 and the limit plate 53 are driven to act to compress the spring, overcome the tensioning force of the spring, and then facilitate the disassembly and assembly of the diamond ring wire 2 (cutting wire).

[0021] The above-mentioned guide rod can be provided with one or two, and the number of springs is correspondingly consistent with that of the guide rod, and the two guide rods share one limit plate.

[0022] Figure 2 and 3 As shown, the linear drive member is an electric push rod 7, and when the electric push rod 7 moves, it pushes the slider 51 to compress the spring. In other embodiments, the linear drive member can also be a cylinder.

[0023] Figure 1 and 2 As shown, the wire cutting machine includes a frame, and the frame includes a column and a lifting plate 1. The lifting plate 1 is driven by a screw nut mechanism to lift and lower, thereby driving the cutting mechanism on the lifting plate 1 to move. In this embodiment, the cutting mechanism includes a driving wire wheel (not shown) and a driven wire wheel 3. Diamond ring wire 2 is wound around the driven wire wheel 3 and the driving wire wheel, that is, a gantry-type cutting machine. The driving wire wheel is located at the front side of the lifting plate 1 and is driven by a motor 4. The motor 4 is located at the rear of the lifting plate 1.

[0024] The lifting plate 1 is provided with a notch, and the axle of the driven line wheel 3 passes through the notch and is fixed on the slider 51. The driven line wheel 3 and the slider 51 are respectively located on both sides of the lifting plate 1, wherein the driven line wheel 3 is located at the front side of the lifting plate 1. The slider 51 has a mounting portion for the line wheel to be installed, that is, a bearing seat hole, for the bearing seat at one end of the wheel axle to be installed.

[0025] The slider 51 is slidably assembled on the slide rail 52, and the length direction of the slide rail 52 is consistent with the length direction of the guide rod 6. The slide rail 52 is fixed on the frame. The notch is a long mouth, which can make way for the displacement of the driven wire wheel 3 in the horizontal direction. The driven wire wheel 3 is also a tensioning wheel. Under normal circumstances, or during the cutting process, the driven wire wheel 3 is in a tensioned state under the tensioning action of the spring. When the diamond ring wire 2 needs to be replaced, the electric push rod 7 is started (it can be conveniently started and stopped by a start button), and the push rod of the electric push rod 7 is extended. When it is against the column of the frame, there will be a reverse thrust, so that the slider 51 moves toward the side of the active wire wheel, and then compresses the spring, the distance between the driven wire wheel 3 and the active wire wheel becomes smaller, and the cutting line becomes loose, so that the new cutting line can be easily disassembled and installed. After the new cutting line is installed, the electric push rod 7 is reset, and the spring is used again to maintain the cutting line in a tensioned state, and then the cutting work can be carried out.

[0026] Furthermore, in order to adjust the tension of the spring. As shown in the figure, the spring seat is designed to be a fixed seat 81 and a movable seat 82. The fixed seat 81 is fixed on the lifting plate 1 of the frame, and the movable seat 82 is slidably assembled on the guide rod 6. The position of the movable seat 82 is adjustable. At this time, the other end of the spring is against the movable seat 82. An adjusting member is provided on the fixed seat 81. The adjusting member can be a bolt. The bolt is threadedly assembled on the fixed seat 81. The fixed seat 81 has a threaded hole 811. The threaded hole 811 is arranged along the axial direction of the guide rod for the bolt to be assembled. The bolt can also be replaced with a countersunk screw. One end of the bolt is against the movable seat 82. The distance between the movable seat 82 and the fixed seat 81 can be changed by rotating the bolt. When the distance becomes larger, the spring is compressed more, which increases the spring tension.

[0027] In this embodiment, the tensioning wheel is also a driven wheel, and there are only two wire wheels. In other embodiments, the tensioning mechanism can also be applied to a wire cutting machine with a driving wire wheel, a driven wire wheel, and an additional tensioning wheel, and used in conjunction with the tensioning wheel, and adjusting the position of the tensioning wheel by an electric push rod can also make the diamond wire in a relaxed state for easy disassembly.

Claims

1. A tensioning mechanism for a circular wire cutting machine, characterized in that: It includes a spring, a spring seat, a guide rod, a slider and a linear drive member, one end of the guide rod is connected to the spring seat, the spring is sleeved on the guide rod, the other end of the guide rod passes through a limit plate, and the limit plate is slidably assembled on the guide rod; one end of the spring abuts against the spring seat, and the other end abuts against the limit plate; The linear driving component is arranged on the slider and can drive the slider to move in one direction. The limit plate is connected with the slider, and the slider is provided with a mounting portion for mounting the wire wheel.

2. The tensioning mechanism of the circular wire cutting machine according to claim 1, characterized in that: The spring seat includes a fixed seat and a movable seat. The fixed seat is fixed on the frame, and the movable seat is slidably assembled on the guide rod. The other end of the spring abuts against the movable seat. An adjusting piece is provided on the fixed seat, and the adjusting piece is threadedly assembled on the fixed seat, and one end of the adjusting piece presses against the movable seat.

3. The tensioning mechanism of the circular wire cutting machine according to claim 1, characterized in that: The linear drive member adopts an electric push rod, and when the electric push rod moves, it pushes the slider back to compress the spring.

4. The tensioning mechanism of the circular wire cutting machine according to claim 2, characterized in that: The slide block is slidably assembled on a slide rail, the length direction of the slide rail is consistent with the length direction of the guide rod, and the slide rail is fixed on the frame.

5. The tensioning mechanism of the circular wire cutting machine according to claim 4, characterized in that: The frame comprises a lifting plate, a notch is arranged on the lifting plate, the axle of the wire wheel passes through the notch and is fixed on a slider, and the wire wheel and the slider are respectively located on two sides of the lifting plate.

6. The tensioning mechanism of the circular wire cutting machine according to claim 5, characterized in that: The wire wheel is a driven wire wheel, and the lifting plate is also provided with a driving wire wheel, and diamond ring wires are wound around the driven wire wheel and the driving wire wheel.

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