Cutting assembly for wire cutting machine, wire cutting machine and control method of wire cutting machine

Abstract

The invention relates to the technical field of wire cutting machines, in particular to a cutting assembly for a wire cutting machine, the wire cutting machine and a control method of the wire cutting machine, and aims to solve the problem that the cutting efficiency and the cutting quality are affected due to the fact that tension adjustment of a cutting wire net lags behind in the prior art. In order to achieve the purpose, the cutting assembly comprises a first main roller and a second main roller which are used for winding cutting lines to form a cutting line net; the first main roller is arranged to be capable of adjusting the position of the first main roller to generate deviation in the cutting process, and then the wire net tension generated in the cutting process is adjusted. Through the structural design, the first main roller can directly deviate to adjust the tension of the wire net, the timeliness of adjusting the tension of the cutting wire net is improved, and the cutting quality and the cutting efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting highly hard and brittle materials, and specifically provides a cutting assembly for a wire cutting machine, a wire cutting machine and a control method thereof. Background Art

[0002] Due to its excellent performance, wire cutting machines are often used as machines for cutting high-hardness and brittle materials to be cut, such as silicon rods, magnetic materials, semiconductors, silicon carbide, sapphire, etc. Its main working principle is that the cutting wire is wound around the main roller to form a cutting wire net. The main roller rotates at high speed and drives the cutting wire net to reciprocate at high speed, and produces relative movement with the workpiece to be cut, so that the material to be cut is cut into the required shape through the cutting wire net, such as cutting silicon rods into silicon wafers, magnetic rods into magnetic sheets, etc.

[0003] At present, during the cutting process of highly hard and brittle materials such as silicon rods, the workpiece to be cut is fed toward the cutting wire mesh and contacts the cutting wire mesh, which will produce pressure on the cutting wire mesh. The tension of the wire mesh will increase during the pressure process. The greater the tension of the wire mesh, the faster the cutting speed, but the risk of wire breakage increases accordingly. In order to balance this risk, existing wire cutting machines are usually provided with a tension wheel to adjust the tension of the wire mesh.

[0004] However, since the tension wheel is not in direct contact with the wire mesh, but is set during the entire cutting process, it can only adjust the tension of a single point on a certain section of the diamond wire. Through the process of reciprocating motion, it slowly feeds back to the cutting wire mesh, and then adjusts the tension of the cutting wire mesh. This method has the problem of high delay, which increases the product processing time and fails to improve the cutting efficiency.

[0005] Accordingly, the art needs a new cutting assembly for a wire cutting machine, a wire cutting machine and a control method thereof to solve the problem in the prior art that the wire mesh tension adjustment of the wire cutting machine has a delay and the cutting efficiency and cutting quality cannot be significantly improved. Summary of the invention

[0001] The present invention aims to solve the above technical problem, that is, to solve the problem that the existing cutting wire web tension adjustment is lagging and thus affects the cutting efficiency and cutting quality.

[0002] In a first aspect, the present invention provides a cutting assembly for a wire saw, the cutting assembly comprising a first main roller and a second main roller for winding a cutting wire to form a cutting wire web;

[0003] The first main roller is configured to adjust its position to produce an offset during the cutting process, thereby adjusting the wire web tension produced during the cutting process.

[0004] When the above technical solution is adopted, the present invention can directly adjust the tension of the cutting wire net, has a strong adjustment capability, and responds quickly without delay.

[0005] In the preferred technical solution of the above-mentioned cutting assembly, the first main roller is configured to be able to adjust its position in a lateral direction parallel to the cutting wire web to produce a lateral offset, thereby adjusting the wire web tension generated during the cutting process.

[0006] When the above technical solution is adopted, the present invention can realize the tightening or loosening of the cutting wire by lateral movement, thereby reducing or increasing the wire bow of the cutting wire net, and finally reducing or increasing the wire net tension.

[0007] In the preferred technical solution of the above-mentioned cutting assembly, the first main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a vertical offset component, thereby adjusting the wire web tension generated during the cutting process.

[0008] In the case of adopting the above technical solution, the present invention changes the circumference of the cutting wire net between the two rollers by vertical movement, thereby stretching the cutting wire. When adjusting upward from the initial position, the wire bow becomes larger and the tension of the cutting wire increases. When it is adjusted back toward the initial position, the wire bow becomes smaller and the cutting wire is stretched at the same time. These two effects are opposite, and the tension becomes larger or smaller, thereby realizing the adjustment of the tension of the cutting wire net. The initial position is Figure 1 The position where the two rollers are set parallel when not adjusted.

[0009] In the preferred technical solution of the above-mentioned cutting assembly, the first main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to produce a vertical offset, thereby adjusting the wire web tension generated during the cutting process.

[0010] In the case of adopting the above technical solution, the present invention directly vertically moves the first main roller to make the cutting wire web approach or move away from the cutting material, thereby achieving tension adjustment of the cutting wire web.

[0011] In the preferred technical solution of the above-mentioned cutting assembly, the first main roller is configured to be able to adjust its position in a direction inclined to the cutting wire web and simultaneously generate a vertical offset component and a lateral offset component, thereby adjusting the wire web tension generated during the cutting process.

[0012] When adopting the above technical solution, the present invention has both horizontal and vertical movement, and can adjust the remaining space size up, down, left and right according to the actual working conditions, to achieve more precise adjustment of the cutting wire net tension, and also make more full use of the internal space of the cutting wire net, reducing the overall volume of the cutting assembly of the wire cutting machine, wherein the specific movement form can be inclined linear motion, or inclined circular arc motion, etc.

[0013] In the preferred technical solution of the above-mentioned cutting assembly, the second main roller is configured to be able to adjust its own position to produce an offset during the cutting process, thereby adjusting the wire web tension generated during the cutting process.

[0014] When adopting the above technical solution, the present invention adjusts the tension of the cutting wire net simultaneously through two main rollers, doubles the adjustment capacity, and can realize a combination of adjustment forms of various different moving paths. The structure and control method are varied, and the optimal control method can be debugged according to the requirements of the cutting material.

[0015] In the preferred technical solution of the above-mentioned cutting assembly, the second main roller is configured to be able to adjust its position in a lateral direction parallel to the cutting wire web to produce a lateral offset, thereby adjusting the wire web tension generated during the cutting process.

[0016] In the case of adopting the above technical solution, the present invention can adjust the tension of the cutting wire net by making the wire bow larger and the tension of the cutting wire increased, or making the wire bow smaller and the tension of the cutting wire reduced through vertical movement.

[0017] In the preferred technical solution of the above-mentioned cutting assembly, the second main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a vertical offset component, thereby adjusting the wire web tension generated during the cutting process.

[0018] When the above technical solution is adopted, the present invention can make the wire bow of the cutting wire net larger and the tension of the cutting wire increased, or make the wire bow smaller and the tension of the cutting wire reduced through vertical movement, thereby realizing the adjustment of the tension of the cutting wire net.

[0019] In the preferred technical solution of the above-mentioned cutting assembly, the second main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to produce a vertical offset, thereby adjusting the wire web tension generated during the cutting process.

[0020] When adopting the above technical solution, the present invention directly vertically moves the second main roller to change the wire bow, so that the wire bow becomes larger when moving upward and becomes smaller when moving downward, thereby achieving tension adjustment of the cutting wire web.

[0021] In the preferred technical solution of the above-mentioned cutting assembly, the second main roller is configured to be able to adjust its position in a direction inclined to the cutting wire web while generating a vertical offset component and a lateral offset component, thereby adjusting the wire web tension generated during the cutting process.

[0022] When adopting the above technical solution, the present invention has both horizontal and vertical movement, and can adjust the remaining space size up, down, left and right according to actual working conditions, thereby achieving more precise adjustment of the cutting wire net tension, and also making more full use of the internal space of the cutting wire net, reducing the overall volume of the cutting assembly of the wire cutting machine.

[0023] In the preferred technical solution of the above-mentioned cutting assembly, the cutting assembly also includes a third main roller used together with the first main roller and the second main roller to wind the cutting line to form a cutting line network, the first main roller and the second main roller are arranged in parallel, and the third main roller is arranged below or above the first main roller and the second main roller.

[0024] When adopting the above technical solution, the present invention is not only limited to the two-roller structure, but can also be applied to the three-roller structure, the four-roller structure, the five-roller structure and the like. Moreover, through the design of the third roller structure, during the adjustment process of the first main roller and the second main roller, the cutting material has enough space to be accommodated under the cutting wire net.

[0025] In the preferred technical solution of the above-mentioned cutting assembly, the third main roller is configured to be able to adjust its own position to produce an offset during the cutting process, thereby adjusting the wire web tension generated during the cutting process.

[0026] When the above technical solution is adopted, the present invention can also achieve a faster adjustment speed than the prior art by adjusting the third main roller without directly adjusting the first main roller and the second main roller directly supported by the cutting wire mesh.

[0027] The present invention also provides a control method for a wire cutting machine, wherein the wire cutting machine comprises a cutting assembly, wherein the cutting assembly comprises a first main roller and a second main roller for winding a cutting wire to form a cutting wire net; the first main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire net to generate a component of vertical offset, thereby adjusting the wire net tension generated during the cutting process;

[0028] The control method comprises:

[0029] The first main roller is controlled to generate an upward deflection component, or the first main roller is controlled to generate a downward deflection component.

[0030] When the above technical solution is adopted, the present invention can only control the first main roller upward or downward to achieve the adjustment of the wire web tension.

[0031] In a preferred technical solution of the above control method, the control method comprises: controlling the first main roller to generate alternating motion having an upwardly deflected component and a downwardly deflected component.

[0032] In the case of adopting the above technical solution, the present invention can maximize the adjustment range of the wire web tension by controlling the first main roller to move alternately up and down, and can reasonably plan the cutting of the cutting material based on different alternating timings.

[0033] In the preferred technical solution of the above control method, the second main roller is configured to adjust its own position to produce an offset during the cutting process, thereby adjusting the wire web tension generated during the cutting process; the control method includes: controlling the second main roller to produce synchronous movement with the first main roller in the same direction of movement.

[0034] When the above technical solution is adopted, the adjustment range of the wire web tension can be expanded through the synchronous movement of the two main rollers.

[0035] In the preferred technical solution of the above control method, the second main roller is configured to adjust its own position to produce an offset during the cutting process, thereby adjusting the wire web tension generated during the cutting process; the control method includes: controlling the second main roller to produce alternating movements in opposite directions to the first main roller.

[0036] When the above technical solution is adopted, the present invention has a wider adjustment range and faster adjustment speed of the wire web tension through the alternating movement of two main rollers compared to the alternating movement of one main roller, which is basically equivalent to doubling the speed and range.

[0037] In the preferred technical solution of the above control method, the second main roller is configured to adjust its own position to produce an offset during the cutting process, thereby adjusting the wire web tension generated during the cutting process; the control method includes: controlling the second main roller and the first main roller to produce synchronous movement with a mirror image of the movement direction.

[0038] When the above technical solution is adopted, the mirror motion can ensure that the left and right forces of the cutting assembly are uniform, and the adjustment range of the wire web tension can be further expanded.

[0039] The present invention also provides a wire cutting machine, which includes the cutting assembly described in any one of the above technical solutions, or the wire cutting machine includes a controller, and the controller is configured to execute the control method described in any one of the above technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0041] Figure 1 It is a schematic diagram of the structure of the cutting assembly having two main rollers and a cutting wire net;

[0042] Figure 2a to Figure 2dSchematic diagram of adjustment methods of Embodiments 1 to 4 of the present invention;

[0043] Figures 3a to 3d Schematic diagram of adjustment methods of Embodiments 5 to 8 of the present invention;

[0044] Figures 4a to 4d Schematic diagram of adjustment methods of Embodiments 9 to 12 of the present invention;

[0045] Figure 5a to Figure 5d Schematic diagram of adjustment methods of Embodiment 13 to Embodiment 16 of the present invention;

[0046] Figures 6a to 6d Schematic diagram of adjustment methods of Embodiments 17 to 20 of the present invention;

[0047] Figures 7a to 7d It is a schematic diagram of the cutting state of the main roller of the present invention when it is adjusted up and down.

[0048] List of reference numerals:

[0049] 1- first main roller; 2- second main roller; 3- third main roller; 4- cutting material. DETAILED DESCRIPTION

[0050] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0051] It should be noted that in the description of the present invention, the terms "upper", "lower", "vertical", "horizontal", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0052] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Among the existing technologies, Figure 1 As shown, when adjusting the cutting wire net of the cutting assembly of the wire cutting machine, a tension wheel (existing technology, not shown in the figure) is usually arranged on the wire inlet path or the wire outlet path of the cutting wire net, and a point of the cutting wire is slowly tightened or slowly relaxed. Through the operation of the main roller, the tension change of the cutting wire is transmitted to the cutting wire net, and then the tension of the cutting wire net is adjusted. This kind of transmission has obvious hysteresis, and the adjustment method is not flexible enough, which ultimately affects the cutting efficiency and cutting quality.

[0054] In order to facilitate the cutting of materials such as silicon rods of different sizes, the spacing between the first main roller 1 and the second main roller 2 can be set to be changeable, but it is only changed before cutting. The change before cutting does not have the ability to adjust the wire mesh tension during the cutting process. This solution in which the main roller is adjustable before cutting still needs to rely on the tension wheel for tension adjustment, so it still has a certain hysteresis.

[0055] Based on the above technical problems, the present invention provides a cutting assembly for a wire cutting machine, specifically, as Figure 1-Figure 2d As shown, the cutting assembly includes a first main roller 1 and a second main roller 2 for winding the cutting wire to form a cutting wire net. The cutting wire is wound around the first main roller 1 and the second main roller 2 to form a cutting wire net; the first main roller 1 is configured to adjust its position to produce an offset during the cutting process, thereby adjusting the wire net tension generated during the cutting process. The present invention proposes a variety of different offset forms to achieve different effects, which are described in detail below in conjunction with the accompanying drawings.

[0056] Embodiment 1:

[0057] Reference Figure 1 and Figure 2a , the first main roller 1 is configured to be able to adjust its position in a lateral direction parallel to the cutting wire net to produce a lateral offset, thereby adjusting the wire net tension generated during the cutting process. In this specific implementation, the first main roller 1 is controlled to produce a lateral offset during the cutting process, and the wire net tension can be directly adjusted at this time. Compared with the adjustment of the tension wheel, since it directly acts on the cutting wire net, the feedback is timely and sensitive. Its specific structural implementation method can be that the motor drives the gear rack to drive the first main roller 1 to move horizontally, or the cylinder, hydraulic cylinder and other driving levers drive the first main roller 1 to achieve lateral movement, or the motor drives the ball screw to move, thereby driving the first main roller 1 to achieve lateral movement, etc., and those skilled in the art can set corresponding structures at both ends of the first main roller 1 according to the above description, thereby realizing the lateral movement of the first main roller 1 during the cutting process. Of course, since the above-mentioned linear drive can drive the first main roller 1 to move in a straight line, the vertical movement and oblique movement mentioned later can adopt the above-mentioned mechanism, which will not be repeated later.

[0058] Embodiment 2 to Embodiment 4:

[0059] Reference Figure 1 and Figure 2b , Figure 2c , Figure 2d The first main roller 1 is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a vertical displacement component, thereby adjusting the wire web tension generated during the cutting process. Specifically, as long as the vertical displacement can be achieved, the implementation form is diverse. In order to visualize the working action of the first main roller 1, the following are listed: Figure 2b , Figure 2c , Figure 2d Three possible implementation examples are introduced below.

[0060] like Figure 2b In the second embodiment shown, the first main roller 1 may only have a vertical displacement. In this case, the first main roller 1 adjusts its position in a vertical direction perpendicular to the cutting wire web to generate a vertical offset, and the lateral offset component is 0, thereby adjusting the wire web tension generated during the cutting process. Figure 2b As shown, at this time, the first main roller 1 is raised by h, and the contact line length between the cutting wire web and the cutting material 4 is Figure 7a The A section in the Figure 7b In the B section, due to the increase in the contact line length, the overall adjustment form is also adjusted upward from the initial position, the wire bow becomes larger, the tension increases, and the cutting capacity is also increased. The wire net tension is also directly adjusted. The initial position is Figure 1 The position where the two rollers are set parallel when not adjusted.

[0061] like Figure 2c In the third embodiment shown, the first main roller 1 can run in a circular arc trajectory. In this embodiment, the first main roller 1 is an eccentric shaft, and its rotation axis does not coincide with the central axis. In this case, when the first main roller 1 is driven to rotate, Figure 2c The motion trajectory of the arc arrow is shown in FIG. 1 . At this time, the first main roller 1 has both a vertical offset component and a lateral offset component, and can also directly adjust the wire web tension.

[0062] like Figure 2d In the fourth embodiment shown, the first main roller 1 can adjust its position along the direction inclined to the cutting wire web and generate a vertical offset component and a horizontal offset component, thereby adjusting the wire web tension generated during the cutting process. This driving form can be the same as the first embodiment, and the wire web tension is also affected by the horizontal offset component and the vertical offset component at the same time.

[0063] Embodiment 5 to Embodiment 8:

[0064] Reference Figures 3a to 3dThe adjustment method of the present invention is obviously not limited to the two-roller structure, and three-roller, four-roller, five-roller or more-roller structures are all possible. As long as the cutting wire mesh between the first main roller 1 and the second main roller 2 needs to be adjusted, the structural adjustment method of the present invention can be used. The following is a detailed description of the four three-roller implementation methods. The same applies to four-roller, five-roller, etc., and will not be elaborated.

[0065] like Figure 3a The overall driving form and working principle of the fifth embodiment shown are similar to those of Figure 2a The only difference is that Figure 3a In the fifth embodiment, a third main roller 3 can be provided for winding the cutting wire together with the first main roller 1 and the second main roller 2 to form a cutting wire net. The first main roller 1 and the second main roller 2 are arranged in parallel, and the third main roller 3 is arranged below or above the first main roller 1 and the second main roller 2 (the embodiment shown in the figure is below, and the same applies to the above), so that the cutting cavity below the cutting wire net is larger, which is more convenient for collecting the cut silicon rods or magnetic materials and other materials.

[0066] Correspondingly, Figure 3b The sixth embodiment corresponds to Figure 2b Embodiment 2 Figure 3c Embodiment 7 corresponds to Figure 2c Embodiment 3 Figure 3d Embodiment 8 corresponds to Figure 2d In the fourth embodiment, the overall principle is the same, and the two-roller method of the present invention is also applicable to the adjustment of the multi-roller structure.

[0067] The above has been combined Figures 1 to 3d , the embodiments 1 to 8 of the single roller adjustment are developed. Of course, the present invention is not limited to the single roller adjustment, but can also be a multi-roller adjustment. Figures 4a to 5d , Embodiments 9 to 16 of the present invention are elaborated in detail.

[0068] Embodiment 9 to Embodiment 12:

[0069] like Figure 4a The ninth embodiment shown, with Figure 2a The difference from the first embodiment is that the second main roller 2 is configured to adjust its own position to produce an offset during the cutting process, thereby adjusting the wire web tension generated during the cutting process, that is, the two main rollers can produce a lateral offset simultaneously or alternately, thereby adjusting the wire web tension.

[0070] Correspondingly, Figure 4b Embodiment 10 corresponds to Figure 2b Embodiment 2 Figure 4c The eleventh embodiment corresponds to Figure 2c Embodiment 3 Figure 4d The twelfth embodiment corresponds to Figure 2dThe overall principle of the fourth embodiment is the same, and the difference is that the two main rollers supporting the cutting wire web move to adjust the wire web tension.

[0071] Multi-roller adjustment is not limited to the two-roller solution. Figure 5a to Figure 5d , the three-roller schemes of Examples thirteen to sixteen of the present invention are expanded.

[0072] Embodiment 13 to Embodiment 16:

[0073] Reference Figure 5a to Figure 5d The principles of Examples 13 to 16 are the same as those of Examples 9 to 12, with the difference being that a third main roller 3 is added, and the third roller is not adjusted, but it still adjusts the first main roller 1 and the second main roller 2 on both sides of the cutting wire net. Based on Examples 13 to 16, those skilled in the art can know that the structural adjustment method of the present invention is also applicable to wire cutting machines with multiple rollers such as three rollers, four rollers, and five rollers.

[0074] Embodiment 17 to Embodiment 20:

[0075] The above has been combined Figures 1 to 5d The single roller and double roller scheme of the present invention are developed, and the overall structure is still to adjust the single roller and double roller supporting the cutting wire net. Correspondingly, the present invention also proposes Figures 6a to 6d The structural adjustment schemes of the seventeenth to twentieth embodiments are different from the previous schemes in that the schemes of the seventeenth to twentieth embodiments are adjustments to the third main roller 3, and the third main roller 3 is not the main roller close to the material to be cut (the first main roller 1 and the second main roller 2 are close to the cutting material), but the third main roller 3 is wound with a cutting line, so by adjusting the position of the third main roller 3, the cutting line net can still be directly adjusted, and the adjustment is faster and more sensitive than the tension wheel method. The four specific implementation methods are generally similar to the above-mentioned schemes in principle, Figure 6a Realize left and right adjustment, Figure 6b To achieve up and down adjustment, Figure 6c Realize the adjustment of arc motion trajectory, Figure 6d Realize the adjustment of tilt motion trajectory.

[0076] So far, the cutting assembly with the main roller adjustment method of the present invention has been described in combination with the specific adjustable methods of the first main roller 1, the second main roller 2 and the third main roller 3. For several of the above adjustment methods, the present invention also proposes different control methods, so that the present invention can reasonably adjust the size of the wire web tension according to the needs. The specific control methods are as follows:

[0077] against Figure 2b to Figure 2d , Figure 3b to Figure 3dOnly the first main roller 1 is adjusted, and the first main roller 1 adjusts its own position in the vertical direction perpendicular to the cutting wire web to generate a component of vertical offset, thereby adjusting the wire web tension generated during the cutting process. The control method of the present invention includes:

[0078] The first main roller 1 is controlled to generate an upward deflection component, or the first main roller 1 is controlled to generate a downward deflection component.

[0079] The above control method is to directly control the first main roller 1 to deflect upward, or to control the first main roller 1 to deflect downward, so as to adjust the wire web tension. This adjustment method can correspond to Figure 7a to Figure 7b The cutting state, Figure 7a This is the state before adjustment. At this time, the contact line between the cutting wire net and the cutting material 4 is Figure 7a In the A section, only Figure 2b The adjustment method in the following example is given. Figure 2c , Figure 2d Although the control methods are different, they are all other specific solutions with vertical offset components, which will not be repeated. When the first main roller 1 deflects upward, the contact line is deformed into Figure 7b In section B, the contact line between the entire cutting wire net and the cutting material 4 becomes longer, and the overall adjustment form is also adjusted upward from the initial position, the wire bow becomes larger, the tension increases, the cutting ability is enhanced, and the wire net tension is also greater. Figure 7b Although only the adjustment of the first main roller 1 upward from the initial position is shown, the adjustment of the first main roller 1 downward from the initial position can also produce a longer B segment, the wire bow becomes larger, the tension increases, and the tension of the cutting wire web is adjusted.

[0080] In view of the above scheme, the present invention also provides a further control method, referring to Figure 2b , Figures 7a to 7d , specifically including:

[0081] The first main roller 1 is controlled to produce an alternating motion having an upward deflection component and a downward deflection component.

[0082] When the first main roller 1 is not limited to upward or downward movement, but moves up and down alternately, a new control method and effect will be generated, such as Figures 7a to 7d As shown, initially, the contact line between the cutting wire net and the cutting material 4 is A, and then after the first main roller 1 rises, the contact line changes to B. At this time, the first main roller 1 is lowered to Figure 7c The contact line becomes C, and Figure 7c The D segment is in a suspended and unconnected state. Similarly, during the switching process, Figure 7dstate, at this time the contact line becomes E, and segment F is in a suspended state. In this process, there is both a contact line B longer than the contact line A and contact lines C and E shorter than the contact line A (of course, C and E can also slowly become longer and exceed A during operation, and finally reach B. By controlling the reasonable switching timing, C and E can also be made always smaller than A). The control method proposed in the present invention generates a variety of schemes with different lengths of the contact line A during the entire alternating process. At this time, the tension of the cutting wire net will also increase or decrease accordingly. Those skilled in the art can apply the above control method to a specific adjustment process, based on different alternating timings, to achieve an increase or decrease in the wire net tension within a certain time period.

[0083] The present invention has proposed the above scheme for adjusting the first main roller 1. Of course, the present invention proposes in the specific structure that the second main roller 2 can also be adjusted. The second main roller 2 can also adjust its position to offset during the cutting process, thereby adjusting the wire web tension generated during the cutting process. Figure 4b to Figure 4d , Figure 5b to Figure 5d In the scheme, a variety of different control methods can be derived. The following three are used as examples. Other control methods can be modified as needed by those skilled in the art, but such simple modifications should be within the scope of protection of the present invention.

[0084] Specifically, a possible implementation of the control method may be to "control the second main roller 2 to produce synchronous movement with the first main roller 1 in the same movement direction". Figure 4b Synchronous upward or downward movement, or Figure 4c The synchronous circular motion of the cutting wire net can be realized. When the synchronous movement is upward, the tension of the cutting wire net increases. On the contrary, when the synchronous movement is downward, the tension of the wire net decreases. This control method can realize the synchronous operation of the two main rollers, which is more stable and uniform, and the force is more balanced.

[0085] Another possible implementation of the control method may be to control the second main roller 2 to produce alternating motion in the opposite direction to the first main roller 1, still in the Figure 4b For example, when the first main roller 1 rises, the second main roller 2 falls, and when the first main roller 1 falls, the second main roller 2 rises. Through this alternating motion, the same Figures 7a to 7d The cutting state can be set. At this time, the appropriate alternation time can be planned according to the required wire web tension, so as to achieve the desired purpose of controlling the wire web tension.

[0086] Another possible implementation of the control method may be to "control the second main roller 2 to produce synchronous movement with the first main roller 1 in a mirror image of the movement direction", for example Figure 4d , Figure 5dAs shown, the first main roller 1 can move to the upper right, and the second main roller 2 can move to the upper left in a mirror-image manner accordingly, which can also realize the control of tension, and the left and right sides can be adjusted synchronously, which can also achieve the purpose of uniform force.

[0087] So far, several different control methods have been described in combination with the specific adjustment structure of the present invention to achieve the adjustment of the wire web tension.

[0088] In addition, the present invention also provides a wire cutting machine, which includes a cutting assembly for a wire cutting machine according to any one of the above-mentioned technical solutions, or the wire cutting machine includes a controller, and the controller is configured to execute a control method according to any one of the above-mentioned technical solutions.

[0089] In summary, the present invention provides a variety of different operation modes of the first main roller 1, the second main roller 2 and the third main roller 3, and provides a variety of different control methods, which can realize dynamic adjustment of the cutting tension of the wire cutting machine during the cutting process.

[0090] It should be noted that the above-mentioned implementation mode is only used to illustrate the principle of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above-mentioned structure so that the present invention can be applied to more specific application scenarios.

[0091] Those skilled in the art can understand that the above-mentioned wire cutting machine also includes some other well-known structures, such as processors, controllers, memories, etc., wherein the memories include but are not limited to random access memory, flash memory, read-only memory, programmable read-only memory, volatile memory, non-volatile memory, serial memory, parallel memory or registers, etc., and the processors include but are not limited to CPLD / FPGA, DSP, ARM processor, MIPS processor, etc. In order to unnecessarily obscure the embodiments of the present disclosure, these well-known structures are not shown in the drawings.

[0092] Although the various steps in the above embodiment are described in the above-mentioned order, those skilled in the art can understand that in order to achieve the effect of this embodiment, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in a reverse order. These simple changes are within the scope of protection of the present invention.

[0093] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A cutting assembly for a wire cutting machine, characterized in that: The cutting assembly includes a first main roller and a second main roller for winding a cutting wire to form a cutting wire web; The first main roller is configured to adjust its position to produce an offset during the cutting process, thereby adjusting the wire web tension produced during the cutting process.

2. The cutting assembly for a wire cutting machine according to claim 1, characterized in that: The first main roller is configured to be able to adjust its position in a lateral direction parallel to the cutting wire web to produce a lateral offset, thereby adjusting the wire web tension generated during the cutting process.

3. The cutting assembly for a wire cutting machine according to claim 1, characterized in that: The first main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a component of vertical offset, thereby adjusting the wire web tension generated during the cutting process.

4. The cutting assembly for a wire cutting machine according to claim 3, characterized in that: The first main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a vertical offset, thereby adjusting the wire web tension generated during the cutting process.

5. The cutting assembly for a wire cutting machine according to claim 3, characterized in that: The first main roller is configured to be able to adjust its position in a direction inclined to the cutting wire web and simultaneously generate a vertical offset component and a lateral offset component, thereby adjusting the wire web tension generated during the cutting process.

6. The cutting assembly for a wire cutting machine according to any one of claims 1 to 5, characterized in that: The second main roller is configured to be able to adjust its position to produce an offset during the cutting process, thereby adjusting the wire web tension produced during the cutting process.

7. The cutting assembly for a wire cutting machine according to claim 6, characterized in that: The second main roller is configured to be able to adjust its position in a lateral direction parallel to the cutting wire web to produce a lateral offset, thereby adjusting the wire web tension generated during the cutting process.

8. The cutting assembly for a wire cutting machine according to claim 6, characterized in that: The second main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a component of vertical offset, thereby adjusting the wire web tension generated during the cutting process.

9. The cutting assembly for a wire cutting machine according to claim 8, characterized in that: The second main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a vertical offset, thereby adjusting the wire web tension generated during the cutting process.

10. The cutting assembly for a wire cutting machine according to claim 8, characterized in that: The second main roller is configured to be able to adjust its position in a direction inclined to the cutting wire web and simultaneously generate a vertical offset component and a lateral offset component, thereby adjusting the wire web tension generated during the cutting process.

11. The cutting assembly for a wire cutting machine according to claim 6, characterized in that: The cutting assembly also includes a third main roller used together with the first main roller and the second main roller to wind the cutting line to form a cutting line network. The first main roller and the second main roller are arranged in parallel, and the third main roller is arranged below or above the first main roller and the second main roller.

12. The cutting assembly for a wire cutting machine according to claim 11, characterized in that: The third main roller is configured to adjust its position to produce an offset during the cutting process, thereby adjusting the wire web tension produced during the cutting process.

13. A control method for a wire cutting machine, characterized in that: The wire cutting machine comprises a cutting assembly, wherein the cutting assembly comprises a first main roller and a second main roller for winding a cutting wire to form a cutting wire web; The first main roller is configured to be able to adjust its position in a vertical direction perpendicular to the cutting wire web to generate a component of vertical offset, thereby adjusting the wire web tension generated during the cutting process; The control method comprises: The first main roller is controlled to generate an upward deflection component, or the first main roller is controlled to generate a downward deflection component.

14. The control method according to claim 13, characterized in that: The control method comprises: The first main roller is controlled to produce an alternating motion having an upwardly deflected component and a downwardly deflected component.

15. The control method according to claim 14, characterized in that: The second main roller is configured to be able to adjust its position to produce an offset during the cutting process, thereby adjusting the wire web tension produced during the cutting process; The control method comprises: The second main roller is controlled to produce synchronous movement with the first main roller in the same movement direction.

16. The control method according to claim 14, characterized in that: The second main roller is configured to be able to adjust its position to produce an offset during the cutting process, thereby adjusting the wire web tension produced during the cutting process; The control method comprises: The second main roller is controlled to produce alternating motion in opposite directions to the first main roller.

17. The control method according to claim 14, characterized in that: The second main roller is configured to be able to adjust its position to produce an offset during the cutting process, thereby adjusting the wire web tension produced during the cutting process; The control method comprises: The second main roller is controlled to produce synchronous movement with the first main roller in a mirror image direction.

18. A wire cutting machine, characterized in that: The wire cutting machine comprises a cutting assembly for a wire cutting machine according to any one of claims 1 to 12, or, The wire cutting machine comprises a controller, and the controller is configured to execute the control method according to any one of claims 13-17.

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