Floating guide wheel structure for drum winding of single-wire slicer

Abstract

The present invention relates to a floating guide wheel structure for winding a single-wire slicer drum, comprising a bracket, an oscillating body, and a guide wheel. The oscillating body is mounted on the bracket so as to be capable of reciprocating and swinging perpendicularly to the axial direction of the drum. The guide wheel is rotatably mounted on the oscillating body and oscillates synchronously with the oscillating body. The axis of the guide wheel is parallel to the axial direction of the drum. The cutting wire extends from the wire drum, passes around the upper edge of the guide wheel, and is wound around the drum via the upper edge of the drum. The cutting wire at the top edge of the guide wheel is aligned with the swing centerline of the oscillating body. The cutting wire on the wire drum continuously changes position along the winding direction as the wire is discharged. The guide wheel oscillates reciprocating perpendicularly to the axial direction of the drum under the action of the deflection force of the cutting wire. The cutting wire at the top edge of the guide wheel is always aligned with the swing centerline of the oscillating body, thereby ensuring that the position of the cutting wire after passing through the guide wheel remains constant, so that the wire drum can track the outlet position of the wire on the drum in real time while remaining stationary.

Description

Technical Field

[0001] The invention relates to the technical field of wire cutting, and in particular to a floating guide wheel structure for drum winding of a single-wire slicer. Background Art

[0002] Machine tools are used to process parts in two broad categories: plastic materials and hard and brittle materials. Machine tools for processing plastic materials are general-purpose metal cutting machines with a wide range of performance capabilities. Machine tools for processing hard and brittle parts are specialized machines (excluding EDM machines) that use diamond tools. These machines also include specialized machines for machining hard and brittle parts with diamond wire tools and slicing capabilities.

[0003] The cutting range of these slicing machines includes hard and brittle materials such as NdFeB magnetic materials, ferrite magnetic materials, ceramics, crystals, semiconductors, gemstones, quartz, glass, crystal, precious stones, and cemented carbide. Currently, diamond wire slicers are mostly used to cut these materials.

[0004] Before wire cutting, the cutting wire (currently diamond wire is used on the market) needs to be wound from the wire drum to the wire-reeling drum. Since the diamond wire on the wire drum is generally arranged in an axial spiral, the position of the wire outlet on the wire drum is constantly changing during the winding process on the drum. The wire drum needs to move continuously with the winding position on the drum, that is, the wire drum needs to track the wire outlet position of the drum in real time. This requires the provision of multiple cooperating components such as a motor and a screw that can drive the wire drum to move continuously. Not only is the structure more complicated, but it also leads to troublesome assembly and high cost. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a floating guide wheel structure for winding a single-wire slicer drum, which can track the wire outlet position on the drum in real time while keeping the wire drum axially stationary and cutting the wire.

[0006] The second technical problem to be solved by the present invention is to provide a floating guide wheel structure for single-wire slicer drum winding that is simple and reasonable in structure, easy to assemble, and low in cost in response to the current status of the existing technology.

[0007] The technical solution adopted by the present invention to solve at least one of the above technical problems is: a floating guide wheel structure for winding the drum of a single-wire slicer, characterized in that it includes:

[0008] A bracket, used to connect to the frame of the slicer;

[0009] an oscillating body, which is mounted on the bracket and can swing back and forth, and the oscillating axis of the oscillating body is perpendicular to the axial direction of the drum; and

[0010] a guide wheel rotatably mounted on the oscillating body and oscillating synchronously with the oscillating body, wherein the rotation axis of the guide wheel is parallel to the axial direction of the drum in a static state;

[0011] The cutting line at the top edge of the guide wheel and the swing axis of the swing body are substantially on the same straight line.

[0012] As an improvement, the floating guide wheel structure for winding the drum of the single-wire slicer further includes a support arm assembly, the upper portion of which is adjustable up and down on the swinging body, the lower portion of which extends toward the drum, and the guide wheel rotatably mounted on the lower portion of the support arm assembly. The guide wheel is generally made of plastic material. After a period of use, the friction of the cutting line can easily cause the wire groove on the guide wheel to deepen, resulting in the position of the cutting line being unable to be located in the same horizontal plane as the swinging centerline of the swinging body and the upper edge of the drum, thus affecting the winding accuracy. With the above structure, the support arm assembly is movably mounted on the bracket up and down. After the depth of the guide groove on the guide wheel changes, the guide wheel height can be adjusted in real time, thereby ensuring that the position of the cutting line is always located in the same horizontal plane as the swinging centerline of the swinging body and the upper edge of the drum, thereby maintaining the winding accuracy.

[0013] To facilitate assembly, the support arm assembly includes a connecting arm and a top plate. The connecting arm is formed into an L shape. The vertical part of the L-shaped connecting arm is constrained on the swing body. The horizontal part of the L-shaped connecting arm extends toward the roller and is used to install the guide wheel. The top plate can be adjusted up and down and is arranged above the swing body and the side is connected to the connecting arm.

[0014] In order to facilitate the upward and downward adjustment of the position of the guide wheel, an adjustment component capable of lifting the top plate up and down is connected between the top plate and the swing body, and the adjustment component is threadedly connected between the top plate and the swing body.

[0015] Preferably, the adjustment assembly includes an elastic member and an adjustment screw. The elastic member is positioned between the top of the oscillating body and the top plate, ensuring that the top plate maintains an upward movement. The top plate has a through-hole extending vertically therethrough. Correspondingly, a threaded hole is formed in the top wall of the oscillating body. The adjustment screw passes through the through-hole and its lower end is threadedly engaged in the threaded hole. The upper portion of the adjustment screw has a circumferentially arranged retaining ring that abuts against the upper wall of the top plate. Turning the adjustment screw allows for fine-tuning of the guide wheel's vertical position to meet the required guide wheel height, and is convenient to operate.

[0016] The elastic member comprises a spring and a push rod. A slot for accommodating the spring is defined in the top wall of the swinging body. The spring is positioned within the slot, with its lower end abutting the inner bottom wall of the slot. The push rod's lower end is connected to the spring's upper end and concealed within the slot. The push rod's upper end abuts the lower wall of the top plate, thereby maintaining a tendency for the top plate to move upward relative to the swinging body. The elastic members are arranged in at least two groups, preferably four groups, surrounding the periphery of the adjustment screw.

[0017] Preferably, the adjustment assembly further includes a set screw extending vertically through the adjustment screw. The set screw passes through the adjustment screw and its lower end is connected to the bottom wall of the threaded hole. The upper end of the set screw is exposed above the adjustment screw and includes a stopper that abuts against the top wall of the adjustment screw to limit upward movement of the adjustment screw. The set screw is longer than the adjustment screw. When assembled, the set screw defines an adjustment range located above the adjustment screw and allowing for upward adjustment of the adjustment screw. This set screw prevents the top plate from detaching from the swinging body due to over-adjustment of the adjustment screw, thereby improving assembly stability.

[0018] To facilitate assembly, two connecting arms are arranged parallel to each other on either side of the swinging body. The connecting arms are fastened to the sidewalls of the swinging body via screws. The guide wheel is rotatably connected between the lower ends of the two connecting arms. The guide wheel is rotatably connected between the two connecting arms via a guide wheel shaft and corresponding bearings. This rotatable connection structure is a conventional rotating wheel mounting structure and will not be described in detail here.

[0019] In each of the above solutions, the bracket is provided with a rotating shaft extending forward and backward, and the rear wall of the swinging body is provided with a shaft hole extending forward and into which the front portion of the rotating shaft is inserted. The inner wall of the shaft hole and the rotating shaft are rotatably engaged via a bearing, and a cover is further provided on the rear side of the shaft hole to seal the bearing in the shaft hole. The above structure is used to achieve reciprocating swinging of the swinging body.

[0020] Compared with the prior art, the advantages of the present invention are: when the present invention is in use, the cutting line on the bobbin continuously changes its position along the winding direction when the line is discharged. After the cutting line passes through the guide wheel, the guide wheel can swing back and forth perpendicular to the axial direction of the drum under the action of the deflection force of the cutting line. However, during the swinging process, the cutting line at the top edge of the guide wheel is always colinear with the swing axis of the swing body, thereby ensuring that the position of the cutting line after passing through the guide wheel is constant, so that the bobbin can track the outlet position of the line on the drum in real time while remaining motionless; the structure of the present invention is simple and reasonable, and it can be conveniently installed only by a bracket, with low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0022] Figure 2 A schematic structural diagram of another angle of view of an embodiment of the present invention;

[0023] Figure 3 for Figure 1 Schematic diagram of part of the structure;

[0024] Figure 4 for Figure 3 sectional view of

[0025] Figure 5 for Figure 3 Another cross-sectional view of;

[0026] Figure 6 Schematic diagram of the coordination structure of the guide wheel and the swing body during the swinging process in an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the structure of a slicer according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0029] In the present invention, directional words such as "up", "down", "left", "right" and "side" are used, but these directional words only indicate relative position relationships and are not limited to absolute directions. For example, "up" and "down" are not limited to directions opposite to or consistent with the direction of gravity.

[0030] The structure of this embodiment is mainly used in cutting wire slicers in the field of single-wire cutting.

[0031] like Figures 1 to 7 As shown, the floating guide roller structure for winding a single-wire slicing machine drum in this embodiment includes a bracket 4, an oscillating member 5, and a guide roller 6. A horizontally arranged, rotatable drum 2 is mounted on the frame 1 of the single-wire slicing machine. A bobbin 3, which supplies the wire to the drum 2, is rotatably mounted on the rear wall of the frame 1 and positioned below and to the side of the drum 2. The bracket 4 is positioned at the rear of the frame 1, above the bobbin 3, with its upper end positioned higher than the drum 2. The oscillating member 5 is mounted on the bracket 4, capable of reciprocating perpendicularly to the axis of the drum 2. The bracket 4 is provided with a rotating shaft 41 extending forward and backward. The rear wall of the oscillating member 5 defines a shaft hole 50 extending forward and receiving the front portion of the shaft. The inner wall of the shaft hole 50 rotatably engages the shaft 41 via a bearing 100. A cover 501 is also provided at the rear of the shaft hole 50, enclosing the bearing 100 within the shaft hole 50 to facilitate reciprocating movement of the oscillating member 5. The guide wheel 6 is rotatably provided on the swing body 5 and swings synchronously with the swing body 5 . The axis of the guide wheel 6 is parallel to the axial direction of the drum 2 .

[0032] In this embodiment, the guide wheel 6 is mounted on the swing body 5 via a support arm assembly 7. The upper portion of the support arm assembly 7 is mounted on the swing body 5 so as to be adjustable up and down, while the lower portion of the support arm assembly 7 extends toward the drum 2. The guide wheel 6 is rotatably mounted on the lower portion of the support arm assembly 7. The guide wheel 6 is generally made of a plastic material. After a period of use, the friction of the cutting line 10 can easily cause the guide groove 61 on the guide wheel 6 to deepen, causing the position of the cutting line 10 to be out of alignment with the swing centerline of the swing body 5, thus affecting the winding accuracy. With the above structure, the support arm assembly 7 is mounted on the bracket 4 so as to be movable up and down. As the depth of the guide groove 61 on the guide wheel 6 changes, the height of the guide wheel 6 can be adjusted in real time, thereby ensuring that the position of the cutting line 10 is always in alignment with the swing centerline of the swing body 5, thereby maintaining the winding accuracy.

[0033] like Figure 4 、 5 As shown, the support arm assembly 7 comprises a connecting arm 71 and a top plate 72. The connecting arm 71 is L-shaped. The vertical portion 711 of the L-shaped connecting arm 71 is constrained to the swing body 5. The transverse portion 712 of the L-shaped connecting arm 71 extends toward the drum 2 and is used to mount the guide wheel 6. The top plate 72 is positioned above the swing body 5 so that it can be adjusted vertically and is connected to the side of the connecting arm 71. An adjustment assembly 8 is connected between the top plate 72 and the swing body 5 to enable the top plate 72 to be raised and lowered. The adjustment assembly 8 is threadedly connected between the top plate 72 and the swing body 5. Two connecting arms 71 are arranged parallel to each other on either side of the swing body 5. The connecting arms 71 are fastened to the side walls of the swing body 5 via screws 200. The guide wheel 6 is rotatably connected between the lower ends of the two connecting arms 71. The guide wheel 6 is rotatably connected between the two connecting arms 71 via a guide wheel shaft and corresponding bearings. This rotatable connection structure is a conventional rotating wheel mounting structure and will not be described in detail here.

[0034] The slicer's frame 1 is equipped with a first positioning guide wheel 1a for positioning the wire exit position on drum 2, a second positioning guide wheel 2a for positioning the wire return position on drum 2, and multiple wheels for guiding the cutting line 10 between the first and second positioning guide wheels 1a, 2a, thereby forming a cutting area 3a. The lower edge of the first positioning guide wheel 1a is aligned with the upper edge of drum 2, and the lower edge of the second positioning guide wheel 2a is aligned with the lower edge of drum 2. After the guide wheel 6 of this embodiment is installed, the cutting line 10 extends from the wire drum 3, passes around the upper edge of the guide wheel 6, and then continues forward, successively passing around the first positioning guide wheel 1a, the other wheels forming the cutting area 3a, and the second positioning guide wheel 2a fixed to the drum 2. The cutting line 10 at the top edge of the guide wheel 6 is substantially aligned with the swing axis of the swinging member 5. The cutting line 10 at the top edge of the guide wheel 6, the swing centerline of the swinging member 5, and the upper edge of the drum 2 are located in the same plane.

[0035] Specifically, such as Figure 5As shown, the adjustment assembly 8 includes an elastic member 81, an adjustment screw 82, and a positioning screw 83. The elastic member 81 is provided between the top of the swing body 5 and the top plate 72 and keeps the top plate 72 in a state of upward movement. The top plate 72 is provided with a through hole 721 extending vertically therethrough. Correspondingly, a threaded hole 51 is provided on the top wall of the swing body 5. The adjustment screw 82 passes through the through hole 721 and its lower end is threadedly connected to the threaded hole 51. The upper portion of the adjustment screw 82 has a limiting ring 821 arranged circumferentially and abutting against the upper wall of the top plate 72. By turning the adjustment screw 82, the upper and lower positions of the guide wheel 6 can be fine-tuned to meet the height requirements of the guide wheel 6, and the operation is convenient. The elastic member 81 comprises a spring 811 and a push rod 812. A slot 52 for accommodating the spring 811 is defined on the top wall of the swinging member 5. The spring 811 is positioned within the slot 52, with its lower end abutting against the inner bottom wall of the slot 52. The push rod 812, with its lower end connected to the upper end of the spring 811, is concealed within the slot 52. The upper end of the push rod 812 abuts against the lower wall of the top plate 72, thereby maintaining an upward movement of the top plate 72 relative to the swinging member 5. Four sets of elastic members 81 are arranged around the periphery of the adjusting screw 82. The adjusting screw 82 extends vertically through the adjusting screw 82. A positioning screw 83 passes through the adjusting screw 82 and its lower end is threadedly connected to the bottom wall of the threaded hole 51. The upper end of the positioning screw 83 protrudes above the adjusting screw 82 and includes a stopper 831 that abuts against the top wall of the adjusting screw 82, thereby limiting its upward movement. The length of the positioning screw 83 is greater than that of the adjusting screw 82. When assembled, the positioning screw 83 has an adjustment range 832 located above the adjusting screw 82 and allowing the adjusting screw 82 to move upward. The positioning screw 83 prevents the top plate 72 from separating from the swinging body 5 when the adjusting screw 82 is over-adjusted, thereby improving assembly stability.

[0036] like Figure 2 As shown, the bobbin 3 of this embodiment can be moved back and forth along the axial direction of the drum 2 and is arranged on the rear side wall of the frame 1. The frame 1 is also provided with a driving member 20 that can drive the bobbin 3 to rotate in a set direction when the cutting line is recovered. The driving member 20 is a motor. After the cutting line 10 has been used for a period of time, its performance deteriorates and there is a risk of wire breakage. Therefore, it needs to be replaced regularly. The above structure is adopted to facilitate the recycling of waste wire. The bobbin 3 is arranged on the frame 1 so that it can move back and forth through the assembly rack 9. The front and rear of the assembly rack 9 are connected to the frame 1 by transversely arranged guide rails 91. The upper part of the assembly rack 9 has a horizontally arranged support plate 92. The bracket 4 is arranged on the support plate 92 and the lower part is connected from top to bottom. The support plate 92 and the upper part of the bracket 4 are provided with openings 921 and 43 for the cutting line 10 to pass through at the corresponding guide wheel 6. The above structure can guide the cutting line 10 and prevent the cutting line 10 from being disordered.

[0037] When the winding structure of this embodiment is used to wind the cutting wire 10 on the bobbin 3 onto the drum 2, the middle of the bobbin 3 is aligned with the guide wheel 6. The cutting wire 10 extending from the bobbin 3 passes around the top edge of the guide wheel 6, and then passes around the first positioning guide wheel 1a, other wheels, and the second positioning guide wheel 2a in sequence, and is fixed on the drum 2 near the first end ( Figure 2 The drum 2 is moved axially while rotating, and the cutting line 10 is wound from the first end to the second end of the drum 2. During this process, the guide wheel 6 is continuously swung to keep its swing center line and the upper edge of the drum 2 in the same horizontal plane, so as to keep the cutting line wound on the drum 2 from being backed up, until the amount of line stored on the drum 2 meets the requirements, the cutting line 10 on the line drum 3 is cut off and fixed on the drum 2 near the second end ( Figure 2 The upper thread is completed at the left end of the middle drum.

[0038] In the above-mentioned online process, if Figure 6 As shown, the cutting line 10 on the bobbin 3 continuously changes its position along the winding direction when the line is discharged. After the cutting line 10 passes through the guide wheel 6, the guide wheel 6 swings back and forth perpendicular to the axial direction of the drum 2 under the traction of the change in the position of the cutting line 10, thereby balancing the tension change of the cutting line 10 caused by the different discharge positions on the bobbin 3. Since the cutting line 10 at the top edge of the guide wheel 6 is always colinear with the swing center line of the swing body 5 during the swinging process, it can ensure that the position of the cutting line 10 after passing the guide wheel 6 is constant, so that the bobbin 3 can track the discharge position on the drum 2 in real time while remaining motionless.

[0039] In this embodiment, the cutting wire is a diamond wire, but the structure of the present invention itself is not restricted by the diamond wire. As long as the wire harness with cutting capability adopts the structure of this embodiment, in principle, the functions described in the present invention can be achieved.

Claims

1. A floating guide wheel structure for drum winding of a single-wire slicer, characterized by: include A bracket (4) for connecting to a frame (1) of a slicer; An oscillating body (5) is provided on the support (4) so ​​as to be capable of reciprocating swing, and the swing axis of the oscillating body (5) is perpendicular to the axial direction of the slicer drum (2); and A guide wheel (6) is rotatably mounted on the oscillating body (5) and oscillates synchronously with the oscillating body (5), wherein the rotation axis of the guide wheel (6) is parallel to the axial direction of the slicer drum (2) in a static state; The support arm assembly (7) further comprises a support arm assembly (7), wherein the upper portion of the support arm assembly (7) is arranged on the swing body (5) in an adjustable manner, the lower portion of the support arm assembly (7) extends in the direction of the roller (2) of the slicer, and the guide wheel (6) is rotatably arranged on the lower portion of the support arm assembly (7); the support arm assembly (7) comprises a connecting arm (71) and a top plate (72), the connecting arm (71) is formed into an L shape, the vertical portion (711) of the L-shaped connecting arm (71) is constrained on the swing body (5), the horizontal portion of the L-shaped connecting arm (71) extends in the direction of the roller (2) and is used to install the guide wheel (6), the top plate (72) is arranged above the swing body (5) in an adjustable manner, and the side portion is connected to the connecting arm (71); the top plate (72) is connected to the swing body (5) An adjusting assembly (8) capable of lifting and lowering the top plate (72) is connected, and the adjusting assembly (8) is threadedly connected between the top plate (72) and the oscillating body (5); the adjusting assembly (8) includes an elastic member (81) and an adjusting screw (82); the elastic member (81) is arranged between the top of the oscillating body (5) and the top plate (72) and enables the top plate (72) to always maintain an upward movement trend; a through hole (721) is opened on the top plate (72) and is correspondingly provided with a threaded hole (51) on the top wall of the oscillating body (5); the adjusting screw (82) passes through the through hole (721) and the lower end is threadedly connected to the threaded hole (51); the upper part of the adjusting screw (82) has a limiting ring (821) arranged along the circumferential direction and abutting against the upper wall surface of the top plate (72); There are two connecting arms (71) arranged in parallel on both sides of the swing body (5), the connecting arms (71) are tightly connected to the side walls of the swing body (5), and the guide wheel (6) is rotatably connected between the lower ends of the two connecting arms (71); After the depth of the guide groove on the guide wheel changes, the height of the guide wheel is adjusted in real time so that the position of the cutting line (10) is always collinear with the swing center line of the swing body (5).

2. The floating guide wheel structure for drum winding of a single-wire slicer according to claim 1 is characterized in that: The adjustment assembly (8) further includes a positioning screw (83), the adjustment screw (82) passing through the upper and lower parts, the positioning screw (83) passing through the adjustment screw (82) and the lower end of which is connected to the bottom wall of the threaded hole (51), the upper end of the positioning screw (83) being exposed above the adjustment screw (82) and having a limit block (831) capable of abutting against the top wall of the adjustment screw (82) to limit the upward movement of the adjustment screw (82).

3. The floating guide wheel structure for drum winding of a single-wire slicer according to claim 1 or 2, characterized in that: The bracket (4) is provided with a rotating shaft (41) extending forward and backward. The rear wall of the swinging body (5) is provided with an axial hole (50) extending forward and for inserting the front part of the rotating shaft (41) therein. The inner wall of the axial hole (50) is rotatably engaged with the rotating shaft (41) via a bearing (501).

4. The floating guide wheel structure for drum winding of a single-wire slicer according to claim 1 or 2, characterized in that: The cutting line (10) at the top edge of the guide wheel (6) is located in the same horizontal plane as the swing center line of the swing body (5) and the upper edge of the cylinder (2) of the slicer.

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