Cutting machine head and cutting system

Abstract

The utility model discloses a cutting machine head and a cutting system, the cutting machine head can move along the cutting feeding direction and cut materials through a cutting line, the cutting machine head comprises at least two cutting guide wheels and at least one supporting guide wheel, and the cutting guide wheels and the supporting guide wheel jointly limit a preset annular track of the rotation motion of the cutting line. The cutting guide wheels are arranged along a first angle, the supporting guide wheels are arranged along a second angle, a preset included angle is formed between the first angle and the second angle, and the preset included angle can make a dislocation distance be formed between a cutting line preset annular track located between the cutting guide wheels and a cutting line preset annular track located outside the cutting guide wheels. According to the utility model, the height of the cutting machine head is shortened, and the to-be-cut material is prevented from being re-cut, so that the miniaturization design of a cutting system is facilitated, and the overall performance of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of material processing equipment, in particular to a cutting machine head and a cutting system. Background Art

[0002] At present, crystalline silicon solar cells are widely used in the field of photovoltaic power generation due to their high conversion efficiency. Crystalline silicon solar cells are made on high-quality silicon wafers, which are made from pulled crystal rods through a series of operations such as cutting, squaring, grinding, and slicing.

[0003] Among them, when squaring the crystal rod, it is necessary to cut from one end of the crystal rod to the other end along the axis of the crystal rod to cut off the arc-shaped edge skin of the crystal rod, and finally form a square crystal rod. Since the length of the crystal rod to be squared is generally about 1 meter, the traditional square cutting system is a four-wheel cutting head. This head requires four wheels to support the cutting line to form a circular wire network. In order to avoid the length of the crystal rod, the length of the cutting line of the four-wheel cutting head needs to be greater than 1 meter. At this time, the height of the four-wheel cutting head should be close to 1.5 meters, and the device size is relatively large. Later, related technologies introduced a two-wheel cutting head, which can be controlled within 0.5 meters, but the circular cutting line of the two-wheel cutting head will re-cut the crystal rod, and the re-cutting will cause the life of the cutting line to be seriously reduced, the loss of the crystal rod to increase, and the wire to be clamped when the knife is out. Utility Model Content

[0004] The utility model aims to provide a cutting head and a cutting system, so as to solve the problem that the existing cutting head is too large or may perform recutting on the crystal rod.

[0005] One aspect of the utility model provides a cutting head, which can move along a cutting feed direction and cut materials through a cutting line, and includes at least two cutting guide wheels and at least one supporting guide wheel. The cutting guide wheel and the supporting guide wheel jointly define a preset annular trajectory for the rotational movement of the cutting line. The cutting guide wheel is arranged along a first angle, and the supporting guide wheel is arranged along a second angle. A preset angle is formed between the first angle and the second angle. The preset angle can form an offset distance between the preset annular trajectory of the cutting line between the cutting guide wheels and the preset annular trajectory of the cutting line outside the cutting guide wheels.

[0006] Furthermore, the supporting guide wheels include at least two, the cutting line is sleeved on the outside of the supporting guide wheels, the cutting line forms a cutting loop under the support of the supporting guide wheels, and the cutting guide wheels abut against the side of the cutting loop so that the part of the cutting line located between adjacent cutting guide wheels forms a cutting position.

[0007] Furthermore, the abutment position between the cutting guide wheel and the cutting line and the abutment position between the supporting guide wheel and the cutting line maintain a preset spacing in the cutting feed direction, so that part of the cutting line at the cutting position protrudes from the cutting loop setting.

[0008] Furthermore, the cutting guide wheel is movably arranged on the cutting machine head along the cutting feed direction to adjust the size of the preset spacing.

[0009] Furthermore, the supporting guide wheel includes at least one tension wheel and at least one driving wheel, the tension wheel is used to adjust the tension of the cutting line, and the driving wheel is used to drive the cutting line to rotate around a circular trajectory.

[0010] Furthermore, the cutting line is sleeved on the outer sides of the supporting guide wheel and the cutting guide wheel, so that the cutting line forms a cutting loop line under the support of the supporting guide wheel and the cutting guide wheel.

[0011] Furthermore, the cutting guide wheel and the supporting guide wheel include at least one tension wheel and at least one driving wheel, the tension wheel is used to adjust the tension of the cutting loop line, and the driving wheel is used to drive the cutting line to rotate around a preset circular trajectory.

[0012] Furthermore, the cutting head also includes a head frame, one side of the head frame is provided with a mounting plane, the mounting plane is used to install the cutting guide wheel and the supporting guide wheel, and the other side of the head frame is provided with a guide wheel drive assembly, the guide wheel drive assembly is used to drive the tension wheel and the driving wheel.

[0013] Furthermore, the supporting guide wheel is arranged parallel to the mounting plane, and the cutting guide wheel maintains a preset angle with the mounting plane; or the cutting guide wheel is arranged parallel to the mounting plane, and the supporting guide wheel maintains a preset angle with the mounting plane.

[0014] Furthermore, the preset angle ranges from 15° to 30°.

[0015] Another aspect of the present invention provides a cutting system, comprising the cutting head described in the above items.

[0016] Furthermore, the squarer includes two cutting heads arranged opposite to each other so as to perform cutting operations from two sides of the material to be cut, and an avoidance space formed on the cutting heads is provided for the edge of the material to be cut to pass through.

[0017] The cutting head and cutting system of the utility model have the following advantages:

[0018] 1. Through the preset angle formed between the cutting guide wheel and the supporting guide wheel, a dislocation distance can be formed between the preset circular trajectory of the cutting line between the cutting guide wheels and the preset circular trajectory of the cutting line outside the cutting guide wheels. When cutting materials, the preset circular trajectory of the cutting line outside the cutting guide wheels forms an avoidance space for the materials to be cut, shortening the height of the cutting head while avoiding double cutting of the materials to be cut, which is conducive to the miniaturization design of the cutting system and improving the overall performance of the equipment;

[0019] 2. The preset angle between the cutting guide wheel and the supporting guide wheel is set in the range of 15° to 30°, which can ensure that the distortion of the cutting line is very small, thereby increasing the service life of the cutting line.

[0020] 3. Part of the cutting line at the cutting position protrudes from the cutting loop line setting, so that the cutting guide wheel is driven by the tension of the cutting line, preventing the problem of reduced service life of the cutting guide wheel due to slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the cutting machine head according to the first embodiment of the utility model.

[0022] Figure 2 This is a front view of the cutting head of the first embodiment of the utility model.

[0023] Figure 3 It is a top view of the cutting machine head according to the first embodiment of the utility model.

[0024] Figure 4 It is a side view of the cutting machine head according to the first embodiment of the utility model.

[0025] Figure 5 This is a schematic diagram of the positional relationship between the cutting guide wheel and the supporting guide wheel of the cutting machine head in the first embodiment of the utility model.

[0026] Figure 6 This is a three-dimensional view of the cutting machine head from another perspective of the first embodiment of the utility model.

[0027] Figure 7 It is a three-dimensional diagram of a cutting machine head according to the second embodiment of the present utility model.

[0028] Figure 8 This is a front view of a cutting machine head according to a third embodiment of the present invention.

[0029] Fig. 9 This is a front view of a cutting machine head according to a fourth embodiment of the present utility model.

[0030] Fig.10 It is a partial structural schematic diagram of the cutting system of the utility model. DETAILED DESCRIPTION

[0031] In order to better understand the purpose, structure and function of the utility model, the cutting head and cutting system of the utility model are further described in detail below in conjunction with the accompanying drawings.

[0032] The cutting head provided by the utility model is suitable for a cutting system, and the cutting system can be used to square cylindrical crystal rods, and can also be used to cut other materials to be cut. The cutting wire 3 can be in a state of high-speed movement, and form a relative friction between the material to be cut, thereby achieving cutting of the material to be cut. For example, the cutting wire can be a conductive cutting member such as a diamond wire that can be used to cut high-hardness and brittle materials, wherein the diamond wire is also called a diamond cutting wire, which is a diamond cutting wire made by inlaying tiny diamond particles on the cutting wire.

[0033] The cutting machine head provided by the embodiment of the utility model includes a first wheel group and a second wheel group, wherein the first wheel group includes at least two cutting guide wheels 1, and the second wheel group includes at least one supporting guide wheel 2, and the cutting guide wheel 1 and the supporting guide wheel 2 jointly define a preset annular track for the rotational movement of the cutting line 3. Specifically, a first wheel groove is provided on the cutting guide wheel 1, and a second wheel groove is provided on the supporting guide wheel 2. The annular cutting line 3 is embedded in the first wheel groove and the second wheel groove, and can rotate at high speed along the preset annular track on the cutting machine head to form a cutting force for cutting materials, and the cutting machine head moves along the cutting feed direction to achieve cutting of the material to be cut.

[0034] Furthermore, the cutting line 3 between adjacent cutting guide wheels 1 forms a cutting position, and the cutting line 3 at the cutting position is used to directly cut the material, and the supporting guide wheel 2 is used to support the annular cutting line 3, so that the cutting line 3 maintains an open annular shape to form a cutting annular line. The cutting guide wheel 1 is set along a first angle, and the supporting guide wheel 2 is set along a second angle. A preset angle is formed between the first angle and the second angle. The preset angle can form a dislocation distance between the preset annular track between the cutting guide wheels 1 and the annular track outside the cutting guide wheel 1, that is, the part of the cutting line 3 between the cutting guide wheels 1 and the part of the cutting line 3 outside the cutting guide wheel 1 are dislocated. At this time, the part of the cutting line 3 outside the cutting position can form an avoidance space for the material to be cut.

[0035] The cutting head provided by the embodiment of the utility model is arranged at an angle between the supporting guide wheel 2 and the cutting guide wheel 1, so that the part of the cutting line 3 outside the cutting guide wheel 1 and the part of the cutting line 3 between the cutting guide wheels 1 are staggered in the cutting feed direction. When the cutting head cuts the material, the annular cutting line 3 moves as a whole along the cutting feed direction. While the cutting line 3 at the cutting position is cutting the material to be cut, the cutting line 3 outside the cutting position will deviate from the moving path of the cutting line 3 at the cutting position in the cutting feed direction due to the existence of the inclination angle, and will not cause re-cutting of the material to be cut. For the squaring of the crystal rod, since the thickness of the edge skin is relatively narrow, this design can effectively shorten the length of the cutting head while ensuring that sufficient avoidance space is reserved for the edge skin, thereby reducing the height size of the traditional squaring machine equipment.

[0036] Preferably, the plane where the first wheel groove on the cutting guide wheel 1 is located is parallel to the cutting feed direction, so that when the cutting machine head moves along the cutting feed direction, the cutting line 3 located at the cutting position performs a vertical cutting operation on the material to be cut. The plane where the second wheel groove on the supporting guide wheel 2 is located forms a preset angle with the cutting feed direction, so that part of the cutting line 3 outside the cutting position forms an avoidance space for the material to be cut.

[0037] Furthermore, in the first wheel group, a cutting position is formed between two adjacent cutting guide wheels 1. When two or more materials need to be cut simultaneously, the number of cutting guide wheels 1 can be increased and three or more cutting guide wheels 1 can be set to form two or more cutting positions.

[0038] Furthermore, in the second wheel group, the support guide wheel 2 is used to support the annular cutting line 3. By setting different numbers of support guide wheels 2, the support shape and support method of the annular cutting line 3 can be adjusted. When there is one support guide wheel 2, the annular cutting line 3 can be supported and driven by the first wheel group and the second wheel group; when there are two or more support guide wheels 2, the annular cutting line 3 can be driven and supported only by the second wheel group, and the first wheel group is only used to adjust the position of part of the cutting line 3 at the cutting position. Of course, when there are two or more support guide wheels 2, the annular cutting line 3 can also be supported and driven by the first wheel group and the second wheel group.

[0039] Figure 1-Figure 6 A specific structural schematic diagram of the cutting machine head of the first embodiment of the utility model is shown. As shown in the accompanying drawings, the second wheel group includes three supporting guide wheels 2, and the cutting line 3 is sleeved on the outside of the supporting guide wheels 2, so that the cutting line 3 forms a triangular cutting loop as shown in the accompanying drawings under the support of the supporting guide wheels 2, and the two cutting guide wheels 1 abut against the cutting line 3 from the inner side of the triangular cutting loop, so that the cutting line 3 between the two cutting guide wheels 1 performs a cutting operation on the material to be cut.

[0040] Furthermore, if Figure 3-Figure 4 As shown, in the embodiment of the utility model, the plane where the first wheel grooves of the two cutting guide wheels 1 are located is parallel to the cutting feed direction (such as Figure 4 The plane A shown in the figure is used to cut the material to be cut perpendicularly to the material to be cut when the cutting head performs the cutting operation, wherein the material to be cut in the figure is a cylindrical crystal rod. The plane where the second wheel grooves of the three support guide wheels 2 are located (as shown in the figure) Figure 4 The plane B shown in FIG. 1 forms a preset angle (such as Figure 4 At this time, when the crystal ingot is squared, only the cutting line 3 at the cutting position contacts the crystal ingot, and the cutting line 3 and the supporting guide wheel 2 outside the cutting position will not contact the crystal ingot due to the existence of the preset angle α, thereby reducing the size of the cutting head while successfully completing the squared operation of the crystal ingot, and will not cause recutting of the crystal ingot.

[0041] Furthermore, in a preferred embodiment of the utility model, the preset angle α has a value range of 15° to 30°, and the angle in the figure is 20°. By setting the preset angle between 15° and 30°, the cutting line 3 on the upper side of the cutting guide wheel 1 can be avoided outside the edge of the crystal rod, which can avoid the cutting line 3 from recutting the silicon rod and ensure that the distortion of the cutting line 3 is very small, thereby increasing the service life of the cutting line 3. Since the cutting head does not need to avoid the length of the crystal rod, the height dimension of the cutting device can be reduced to about 0.4m, which greatly reduces the height dimension of the equipment of the traditional square opening machine.

[0042] Further, in the embodiment of the utility model, the abutment position between the cutting guide wheel 1 and the cutting line 3 and the abutment position between the supporting guide wheel 2 and the cutting line 3 are kept at a preset distance in the cutting feed direction, so that part of the cutting line 3 at the cutting position protrudes from the cutting loop line setting, such as Figure 5 As shown, the bottom end of the first wheel groove of the first wheel group (cutting guide wheel 1) located on one side of the cutting position and the bottom end of the second wheel groove of the second wheel group (supporting guide wheel 2) maintain a preset distance (such as Figure 5 The distance d shown is such that part of the cutting line 3 between the cutting guide wheels 1 protrudes from the side of the cutting loop. The embodiment of the utility model can ensure that the two cutting guide wheels 1 are driven by the tension of the cutting line 3 and prevent the problem of slipping that reduces the service life of the cutting guide wheels 1 by protruding the cutting line 3 at the cutting position, specifically protruding from the cutting feed direction.

[0043] Furthermore, in the embodiment of the utility model, the cutting guide wheel 1 is movably arranged on the cutting head along the cutting feed direction, so that the size of the preset spacing can be adjusted by adjusting the position of the cutting guide wheel 1 on the cutting head. The adjustment range of the preset spacing d can be between 0mm and 50mm, and the distance d can be adjusted by translating the two cutting guide wheels 1 and cooperating with corresponding tooling. In addition, the embodiment of the utility model further ensures that the cutting line 3 between the cutting guide wheels 1 is fed vertically by pressing the cutting line 3 at the cutting position down a certain distance.

[0044] Furthermore, the support guide wheel 2 of the second wheel group in the embodiment of the utility model includes at least one tension wheel 22 and at least one driving wheel 21, the tension wheel 22 is used to adjust the tension of the cutting loop line, and the driving wheel 21 is used to drive the cutting loop line to rotate around the first wheel group.

[0045] like Figure 1 , Figure 2 and Figure 6 As shown, the second wheel group of the utility model includes a tension wheel 22, a driving wheel 21 and a driven wheel 23. A tension motor 51 and a driving motor 52 are arranged on one side of the cutting head. The tension motor 51 is used to drive the tension wheel 22. The tension of the cutting loop is adjusted by adjusting the position of the tension wheel 22. The driving wheel 52 is used to drive the driving wheel 21. The driving wheel 21 is driven to rotate to drive the cutting loop as a whole.

[0046] Furthermore, the cutting head provided by the embodiment of the utility model also includes a head frame 4, and a mounting plane is provided on one side of the head frame 4, and the mounting plane is used to install the first wheel group and the second wheel group. A guide wheel drive assembly is provided on the other side of the head frame 4, and the guide wheel drive assembly is used to drive the movement of the tension wheel 22 and the driving wheel 21. The specific guide wheel drive assembly includes a tension motor 51 and a driving motor 52. The tension motor 51 is used to drive the tension wheel 22, and the tension of the cutting loop is adjusted by adjusting the position of the tension wheel 22. The driving wheel 52 is used to drive the driving wheel 21, and the cutting loop is driven to rotate as a whole by driving the driving wheel 22 to rotate.

[0047] Furthermore, the cutting head provided in the embodiment of the utility model is arranged on the cutting system, and the cutting of the crystal rod is realized by controlling the cutting head as a whole to reciprocate along the cutting feed direction. In a specific embodiment of the utility model, the first wheel group maintains a preset angle with the mounting plane, and the second wheel group is arranged parallel to the mounting plane. At this time, the cutting head is tilted relative to the cutting feed direction to perform vertical cutting on the material to be cut during cutting and feeding. In an optional embodiment of the utility model, the first wheel group can also be arranged parallel to the mounting plane, and the second wheel group can maintain a preset angle with the mounting plane. At this time, the cutting head is arranged as a whole parallel to the cutting feed direction.

[0048] The above embodiment is a specific embodiment of the present invention and is not intended to limit the protection scope of the present invention. It can be understood that in practical applications, the same function can be achieved by making corresponding adjustments to the cutting head in the above embodiment.

[0049] Further, as an optional embodiment of the cutting head of the first embodiment, the cutting head of the second embodiment of the utility model retains the relevant structure of the first embodiment, such as Figure 7 As shown, the second wheel group includes two supporting guide wheels 2, so that the cutting line 3 forms a cutting loop line with two sides as shown in the figure. At this time, the two cutting guide wheels 1 of the first wheel group are arranged inside a cutting loop line as a cutting position. It can be understood that the utility model can also achieve the corresponding supporting function by setting four or more supporting guide wheels 2.

[0050] In combination with the first embodiment and the second embodiment of the utility model, the second wheel group may include at least two supporting guide wheels 2, and the cutting line 3 is sleeved on the outside of the supporting guide wheel 2 so that the cutting line 3 forms a cutting loop under the support of the supporting guide wheel 2, and the cutting guide wheel 1 abuts against the cutting line 3 from the side of the cutting loop.

[0051] It should be noted that the cutting guide wheel 1 of the present invention abuts against the cutting line 3 from the side of the cutting line, which may be abutted from the inner side of the cutting line as in the first and second embodiments, or from the outer side of the cutting line as in the third embodiment. Figure 8 As shown, at this time, the cutting guide wheel 1 is arranged relative to the cutting feed direction, and the cutting line 3 on the opposite side of the cutting position first passes through the material to be cut, and then the cutting line 3 at the cutting position performs a cutting operation on the material to be cut.

[0052] Optionally, the present utility model also proposes an optional fourth embodiment, such as Fig. 9 As shown, in this specific embodiment, two cutting guide wheels 1 of the first wheel group and one supporting guide wheel 2 of the second wheel group jointly support the cutting line 3. At this time, the plane where the first wheel grooves of the two cutting guide wheels 1 are located is perpendicular to the cutting feed direction, and the supporting guide wheel 2 is inclined to the cutting feed direction to provide avoidance space for the material to be cut.

[0053] Furthermore, if Fig. 9 It can be seen that in an optional embodiment of the utility model, the second wheel group includes at least one supporting guide wheel 2, and the cutting line 3 is sleeved on the outside of the supporting guide wheel 2 and the cutting guide wheel 1, so that the cutting line 3 forms a cutting loop line with at least three sides under the support of the supporting guide wheel 2 and the cutting guide wheel 1.

[0054] It should be noted that for the fourth embodiment of the present invention, since the cutting guide wheel 1 also supports the cutting line 3, there is no need to set the first preliminary distance to ensure the tension driving effect of the cutting line 3 on the cutting guide wheel 12.

[0055] It can be understood that in the fourth embodiment of the utility model, the cutting guide wheel 1 and the supporting guide wheel 2 include at least one tension wheel and at least one driving wheel (that is, the tension wheel and the driving wheel are not limited to the supporting guide wheel 2), the tension wheel is used to adjust the tension of the cutting loop line, and the driving wheel is used to drive the cutting loop line to rotate around the first wheel group and the second wheel group.

[0056] Another aspect of the present invention further provides a cutting system, which includes the cutting head provided in the above embodiment.

[0057] Further, such as Fig.10 As shown, in a specific embodiment of the square cutting machine, the cutting system includes two cutting heads arranged opposite to each other to perform cutting operations from two sides of the material to be cut, and an avoidance space formed on the cutting heads is provided for the edge of the material to be cut to pass through.

[0058] Fig.10 The embodiment shown takes a cutting device with three inclined wheels + two guide wheels on the left side and a cutting device with two inclined wheels + two guide wheels on the right side as an example. The two cutting devices are cutting guide wheels 1 arranged vertically. During the cutting process, the crystal rod stands under the two cutting heads, and the cutting wheel heads are driven to move relative to the silicon rod to complete the cutting of the crystal rod.

[0059] By rotating the tension wheel device, the loop wire cutting wire 3 is hung on the cutting wheel, and the cutting wire 3 is tensioned by driving the tension motor. The specific tensioning force can be adjusted by adjusting the motor output torque. During the cutting process, the drive motor rotates, driving the drive wheel and the cutting wire 3 to rotate at high speed to complete the cutting of the crystal rod. During the cutting process, the spray assembly sprays the coolant to the seam position to achieve the effect of cooling and lubrication.

[0060] The cutting head and cutting system of the utility model have the following advantages:

[0061] 1. Through the preset angle formed between the cutting guide wheel 1 and the supporting guide wheel 2, a dislocation distance can be formed between the preset circular trajectory of the cutting line between the cutting guide wheels 1 and the preset circular trajectory of the cutting line outside the cutting guide wheel 1. When cutting materials, the preset circular trajectory of the cutting line outside the cutting guide wheel 1 forms an avoidance space for the material to be cut, which can shorten the height of the cutting head while avoiding double cutting of the material to be cut, which is conducive to the miniaturization design of the cutting system and improves the overall performance of the equipment;

[0062] 2. The preset angle between the cutting guide wheel 1 and the supporting guide wheel 2 is set in the range of 15° to 30°, which can ensure that the distortion of the cutting line 3 is very small, thereby increasing the service life of the cutting line 3.

[0063] 3. Part of the cutting line at the cutting position protrudes from the cutting loop line, so that the cutting guide wheel 1 is driven by the tension of the cutting line, thereby preventing the problem of reduced service life of the cutting guide wheel due to slipping.

[0064] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be understood as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of the embodiments of the utility model will not be described separately.

[0065] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

Claims

1. A cutting head that can move along a cutting feed direction and cut materials through a cutting line, characterized in that: It includes at least two cutting guide wheels and at least one supporting guide wheel. The cutting guide wheel and the supporting guide wheel jointly define a preset circular trajectory of the cutting line rotational movement. The cutting guide wheel is set along a first angle, and the supporting guide wheel is set along a second angle. A preset angle is formed between the first angle and the second angle. The preset angle can form an offset distance between the preset circular trajectory of the cutting line located between the cutting guide wheels and the preset circular trajectory of the cutting line located outside the cutting guide wheels.

2. The cutting head according to claim 1, characterized in that: The supporting guide wheels include at least two, the cutting line is sleeved on the outside of the supporting guide wheels, the cutting line forms a cutting loop under the support of the supporting guide wheels, and the cutting guide wheels abut against the sides of the cutting loop to form a cutting position for the part of the cutting line between adjacent cutting guide wheels.

3. The cutting head according to claim 2, characterized in that: The abutment position between the cutting guide wheel and the cutting line and the abutment position between the supporting guide wheel and the cutting line maintain a preset spacing in the cutting feed direction, so that part of the cutting line at the cutting position protrudes from the cutting loop setting.

4. The cutting head according to claim 3, characterized in that: The cutting guide wheel is movably arranged on the cutting machine head along the cutting feed direction to adjust the size of the preset spacing.

5. The cutting head according to claim 2, characterized in that: The supporting guide wheel includes at least one tension wheel and at least one driving wheel. The tension wheel is used to adjust the tension of the cutting line, and the driving wheel is used to drive the cutting line to rotate around a circular track.

6. The cutting head according to claim 1, characterized in that: The cutting line is sleeved on the outer sides of the supporting guide wheel and the cutting guide wheel, so that the cutting line forms a cutting loop line under the support of the supporting guide wheel and the cutting guide wheel.

7. The cutting head according to claim 6, characterized in that: The cutting guide wheel and the supporting guide wheel include at least one tension wheel and at least one driving wheel. The tension wheel is used to adjust the tension of the cutting loop line, and the driving wheel is used to drive the cutting line to rotate around a preset loop track.

8. The cutting head according to claim 5 or 7, characterized in that: The cutting head also includes a head frame, one side of the head frame is provided with a mounting plane, the mounting plane is used to install the cutting guide wheel and the supporting guide wheel, and the other side of the head frame is provided with a guide wheel drive assembly, the guide wheel drive assembly is used to drive the tension wheel and the drive wheel.

9. The cutting head according to claim 8, characterized in that: The supporting guide wheel is arranged parallel to the mounting plane, and the cutting guide wheel maintains a preset angle with the mounting plane; or the cutting guide wheel is arranged parallel to the mounting plane, and the supporting guide wheel maintains a preset angle with the mounting plane.

10. The cutting head according to claim 1, characterized in that: The preset angle ranges from 15° to 30°.

11. A cutting system, characterized in that: Comprising the cutting head described in any one of claims 1-10.

12. The cutting system according to claim 11, characterized in that The cutting system comprises two cutting heads arranged opposite to each other so as to perform cutting operations from two sides of the material to be cut, and an avoidance space formed on the cutting heads is provided for the edge of the material to be cut to pass through.

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