Guide wheel mechanism for cutting wire net and cutting equipment using cutting wire net

Abstract

The invention provides a guide wheel mechanism for cutting a wire net and cutting equipment using the cutting wire net.The guide wheel mechanism for cutting the wire net comprises a shaft system, at least two guide wheels and a pair of supports, the two guide wheels are rotationally supported on a mandrel through a bearing set, and the supports are fixedly supported at the two ends of the mandrel; the base body and the cover body of each support respectively form semicircular supporting parts which are matched with each other, when the supporting parts of the base body and the cover body are in a state of mutually folding to support the end part of the core shaft, the supporting parts can fixedly support the core shaft, and the supporting parts of the base body and the cover body are in a horizontal half-section structure in the state of mutually folding. According to the guide wheel, the rotational inertia of the guide wheels is reduced, the overall machining precision of wire grooves between the guide wheels is guaranteed, the working difficulty caused by repeated disassembly and assembly of the guide wheels is simplified, and disassembly and assembly convenience is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of wire cutting, and in particular to a guide wheel mechanism for cutting a wire net and a cutting device using the same. Background Art

[0002] As a cutting tool, the cutting wire net is generally used to cut or slice superhard blanks. The cutting equipment is equipped with a guide wheel mechanism. Multiple cutting wires are wound in the wire grooves on the surface of the guide wheel, and are driven by the guide wheel to cut superhard materials at a linear speed. In order to achieve high-speed cutting of the cutting wire, the cutting equipment needs to be equipped with a large-diameter guide wheel. Since large-diameter guide wheels generally have a large moment of inertia, this causes a series of problems such as insufficient guide wheel rotation accuracy, slow guide wheel start-stop reversing response, difficulty in machining the wire grooves on the surface of the guide wheel, and difficulty in maintaining the guide wheel mechanism. Summary of the invention

[0003] The present invention provides a guide wheel mechanism for a cutting wire net and a cutting device using the cutting wire net.

[0004] Specifically, the present disclosure is achieved through the following technical solutions: In a first aspect, an embodiment of the present disclosure provides a guide wheel mechanism for cutting a wire mesh, comprising: A shaft system, provided with a core shaft and a bearing group arranged on the core shaft; At least two guide wheels are rotatably supported on the spindle through the bearing assembly, and the at least two guide wheels rotate independently of each other; A pair of supports are fixedly supported at both ends of the core shaft, and each of the supports is provided with a seat body and a cover body, and the seat body and the cover body are respectively formed with mutually matching semicircular support parts, so that when the support parts of the seat body and the cover body are in a state of being closed to support the end of the core shaft, the support parts can fix the core shaft, wherein the support parts of the seat body and the cover body are in a horizontal half-section structure when they are closed to each other.

[0005] In some embodiments, it also includes a power wheel, which is rotatably supported at the end of the core shaft and located on the inner side of the support, wherein the power wheel is integrally connected with at least the guide wheel located on the outer side.

[0006] In some embodiments, the support further includes a bottom shell and a top shell, the bottom shell and the top shell are detachably connected to the base body and the cover body respectively, and the bottom shell and the top shell are folded together to form a closed space around the power wheel.

[0007] In some embodiments, the shaft system is provided with a flange, the flange is provided with a neck and a disk, the power wheel is sleeved on the neck and fixedly connected to the neck, and the end of the guide wheel is pressed against the disk and fixedly connected to the disk.

[0008] In some embodiments, the neck is formed with a first assembly hole that penetrates radially, and the core shaft is formed with a second assembly hole that matches the first assembly hole, so that when the guide wheel and the core shaft are installed in place, the positions of the first assembly hole and the second assembly hole correspond.

[0009] In some embodiments, the guide wheel is provided with an inner wheel body and an outer wheel body, and the ends of the inner wheel body and the outer wheel body are respectively pressed against the disc part and fixedly connected to the disc part.

[0010] In some embodiments, an annular cavity is formed between the inner wheel body and the outer wheel body, and a through hole is formed on the inner peripheral wall of the inner wheel, and the through hole is used to connect the annular cavity and the outer periphery of the core shaft.

[0011] In some embodiments, there are two guide wheels, and the bearing group includes at least a deep groove ball bearing and a double row angular contact ball bearing. Each guide wheel is arranged with a pair of deep groove ball bearings on the side close to the adjacent guide wheel, and a double row angular contact ball bearing on the side away from the adjacent guide wheel, wherein the double row angular contact ball bearings are installed back to back.

[0012] In some embodiments, a pair of deep groove ball bearings and double row angular contact ball bearings are symmetrically arranged axially relative to the center line of the corresponding guide wheel, and the axial spacing between the pair of deep groove ball bearings and the double row angular contact ball bearings is 2 / 3-3 / 4 of the axial size of the corresponding guide wheel.

[0013] In some embodiments, it also includes: An outer ring abutting portion, used for abutting against the outer ring of the bearing assembly; An inner ring abutment portion, used to pass through the inner periphery of the outer ring abutment portion and abut against the inner ring of the bearing assembly; A labyrinth seal portion is formed on a side of the outer ring abutment portion away from the bearing assembly.

[0014] In some embodiments, a "cross" keyway is provided at the bottom of the seat body, and a shoulder is formed on the contact surface between the core shaft and the supporting portion.

[0015] In a second aspect, an embodiment of the present disclosure provides a cutting device using a cutting wire net, comprising the guide wheel mechanism described in the first aspect.

[0016] According to the embodiment of the present disclosure, by adopting the configuration form that the guide wheel and the mandrel are rotatably supported, and the mandrel and the support are fixedly supported, firstly, the mass of the rotating parts is reduced, thereby reducing the rotational inertia of the guide wheel, and a bearing with a larger outer diameter can be used, thereby improving the overall rigidity of the guide wheel, reducing the bearing speed, and avoiding the reduction in the overall accuracy of the guide wheel due to the heating of the bearing; secondly, there is no need to set a bearing and a bearing seat between the mandrel and the support, so that in the process of machining the line groove on the surface of the guide wheel, the mandrel and the guide wheel can be clamped on the lathe chuck as a whole and rotated, and the turning tool is used to form all the line grooves on the surface of the guide wheel at one time, thereby ensuring the accuracy of the line groove track spacing between each guide wheel and the matching accuracy of the line groove and the mandrel, simplifying the difficulty of work caused by repeated disassembly and assembly of the guide wheel, and avoiding the cumbersome process of boring step holes in the prior art; thirdly, since the entire guide wheel mechanism except the support is a shaft part, it is easy to process; fourthly, by arranging the support to be composed of a split seat body and a cover body and presenting a horizontal half-section structure, the mandrel and the guide wheel can be taken out as a whole only by removing the cover body, thereby improving the convenience of disassembly and assembly.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] Figure 1 is a schematic diagram of a first perspective of a guide wheel mechanism for cutting a wire web in an embodiment of the present disclosure; Figure 2 is a schematic diagram of a second viewing angle of a guide wheel mechanism for cutting a wire web in an embodiment of the present disclosure; Figure 3 is a cross-sectional view of a guide wheel mechanism for cutting a wire mesh in one embodiment of the present disclosure; Figure 4 yes Figure 3 A partial enlarged view of the middle A; Figure 5 yes Figure 3 A partial enlarged view of point B in the middle; Figure 6 yes Figure 3 A partial enlarged view of point C in the middle; Figure 7 is a schematic diagram of an axis system in an embodiment of the present disclosure; Figure 8 is a cross-sectional view of an axis system in an embodiment of the present disclosure; Fig. 9 is a bottom view of a guide wheel mechanism for cutting a wire mesh in one embodiment of the present disclosure;

[0020] Reference numerals: 10: shaft system; 11: mandrel; 111: second assembly hole; 112: first shaft section; 12: flange; 121: neck; 122: disc; 123: first assembly hole; 131: deep groove ball bearing; 132: double row angular contact ball bearing; 141: outer ring fastening block; 142: inner ring fastening block; 143: nut; 20: guide wheel; 21: inner wheel body; 211: through hole; 22: outer wheel body; 23: annular cavity; 24: rubber sleeve; 30: support; 31: seat body; 311: longitudinal groove; 312: transverse groove; 32: cover body; 33: supporting part; 34: bottom shell; 35: top shell; 40: Power wheel. DETAILED DESCRIPTION

[0021] The present disclosure will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0022] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to"; the terms "embodiment" and "one embodiment" are to be interpreted as "at least one embodiment"; the term "another embodiment" is to be interpreted as "at least one other embodiment"; the terms "first", "second", etc. may refer to different or the same objects; the term "setting" is not limited to direct connection or indirect connection, nor is it limited to a specific connection method. Other explicit and implicit definitions may also be included below.

[0023] In the following description, some specific numerical values ​​or numerical ranges may be involved. It should be understood that these numerical values ​​and numerical ranges are merely exemplary, which may be helpful in putting the idea of ​​the present disclosure into practice. However, the description of these examples is not intended to limit the scope of the present disclosure in any way. According to specific application scenarios and requirements, these numerical values ​​or numerical ranges can be set separately.

[0024] As mentioned above, the existing guide wheel has a large moment of inertia, which causes insufficient rotation accuracy, slow start-stop reversing response, difficulty in surface wire groove processing, and difficulty in guide wheel mechanism maintenance. The guide wheel mechanism for cutting wire mesh and the cutting equipment using the cutting wire mesh proposed in the embodiments of the present disclosure at least partially solve the above problems. Figures 1 to 9 The structure and working principle of the guide wheel mechanism for cutting wire mesh according to the exemplary embodiment of the present disclosure are described below. Figure 1-9As shown, the guide wheel mechanism for the cutting wire net of the disclosed embodiment generally comprises an axis system 10, at least two guide wheels, and a pair of supports 30, wherein the axis system 10 is used to position the guide wheels in the axial and radial directions, the guide wheels are used to be wound by the cutting wire in the surface wire groove, and the pair of supports 30 are used to support the axis system 10.

[0025] There are at least two guide wheels, and both guide wheels can be driving wheels or driven wheels, or one can be a driving wheel and the other a driven wheel. Since the two guide wheels are not connected to each other, it is only necessary to arrange a power wheel 40 on one side of the driving wheel, and the power wheel 40 drives the driving wheel to rotate, and drives the cutting line wound on the driving wheel to move at a linear speed. There is no need to arrange a power wheel 40 on the driven wheel side. The driven wheel is opposite to the driving wheel of the guide wheel mechanism for another cutting wire net, and the wound cutting line is driven to rotate by the driving wheel of the guide wheel mechanism for another cutting wire net.

[0026] In one embodiment, Figure 3 As shown, there are only two guide wheels, one of which is a driving wheel and the other is a driven wheel. In another embodiment, the number of guide wheels can also be three, four or more. Since the guide wheels rotate independently of each other, the number of guide wheels does not affect the understanding and protection of the embodiments of the present disclosure.

[0027] The shaft system 10 is composed of a core shaft 11 and a bearing assembly, a sleeve, a flange 12 and other components mounted on the core shaft 11. In one embodiment, as Figure 3 , 7 As shown in FIG. 8 , both ends of the core shaft 11 have a first shaft section with a smaller diameter, which is used to be supported at the supporting portion 33 of the support 30, and is circumferentially positioned between the core shaft 11 and the support 30 through a keyway structure, and is axially positioned between the end cover and the support 30; a step can be formed in the middle of the core shaft 11, and the inner ring clamping block 142 is axially limited on both sides of the step.

[0028] In one embodiment, the inner side of the first shaft section of the core shaft 11 forms a second shaft section, a third shaft section and a fourth shaft section with step-increasing diameters, wherein the second shaft section is used to install the neck 121 of the flange 12 and the power wheel 40, the third shaft section is screwed connected to the nut 143 through an external thread, and the fourth shaft section is used to arrange the bearing group and the sleeve, so that the guide wheel is set on the outer periphery of the fourth shaft section.

[0029] The first shaft segment is fixed by the support portion 33 of the support 30. In one embodiment, each support 30 is provided with a seat body 31 located below and a cover body 32 located above, and the opposite surfaces of the seat body 31 and the cover body 32 are formed with semicircular contours. When the cover body 32 covers the seat body 31, the two semicircular contours are closed together to form a full circular support portion 33, and the full circular support portion 33 just surrounds the first shaft segment of the core shaft 11, thereby radially limiting the first shaft segment.

[0030] In one embodiment, the supporting portions 33 of the seat body 31 and the cover body 32 are in a horizontal half-section structure when they are closed together, that is, the line connecting the starting point and the end point of the arc of the semicircular contour of the seat body 31 extends horizontally, and the arc angle covers 180 degrees, and the line connecting the starting point and the end point of the arc of the semicircular contour of the cover body 32 also extends horizontally, and the arc angle also covers 180 degrees. With such an arrangement, when installing the core shaft 11, the first shaft section can be stably placed on the seat body 31, so that the operator has sufficient time to cover the cover body 32, and when disassembling the core shaft 11, only the cover body 32 needs to be removed, and the core shaft 11 after removing the cover body 32 can be stably placed on the seat body 31 through the first shaft section, so that the operator has sufficient time to place the cover body 32 elsewhere, and the entire disassembly and assembly process is convenient.

[0031] In one embodiment, the power wheel 40 is connected to the guide wheel as the driving wheel through the flange 12, and can be supported on the core shaft 11 as a whole. Specifically, the flange 12 is provided with a neck 121 and a disk 122, the neck 121 is sleeved on the second shaft segment, and when the guide wheel mechanism is in working state, a clearance fit is formed between the neck 121 and the second shaft segment, and the power wheel 40 is fixedly connected to the neck 121 by bolts; on the other hand, the disk 122 abuts against the side of the guide wheel and is fixedly connected to the guide wheel by bolts, that is, as the power wheel 40 is driven to rotate by, for example, a belt, the power wheel 40 can drive the guide wheel as the driving wheel to rotate as a whole through the flange 12. With such a configuration, when the cutting wire net is in the cutting working state, since the core shaft 11 is fixed, only the guide wheel itself rotates, which greatly reduces the mass of the rotating parts, thereby reducing the moment of inertia, which is conducive to improving the rotation accuracy of the guide wheel, reducing the vibration of the guide wheel rotation, and increasing the response speed of the start-stop switching of the guide wheel.

[0032] In one embodiment, an annular cavity 23 may be formed inside the guide wheel, so that the mass of the guide wheel can be further reduced while ensuring that the guide wheel has sufficient strength to withstand the winding of the cutting wire net. In another embodiment, the guide wheel is configured as a split structure consisting of an inner wheel body 21 and an outer wheel body 22, a rubber sleeve 24 is provided on the outer periphery of the outer wheel body 22, and semi-enclosed annular grooves are formed on the outer periphery of the inner wheel body 21 and the inner periphery of the outer wheel body 22, respectively, so that the inner wheel body 21 and the outer wheel body 22 can form a completely enclosed annular cavity 23 when they are assembled together. With such a configuration, only the outer wheel body 22 needs to be taken out to add lubricating liquid to the open annular groove, making the guide wheel mechanism maintenance work more convenient.

[0033] In one embodiment, a through hole 211 is formed on the inner peripheral wall of the inner wheel, and the through hole 211 connects the annular cavity 23 and the outer periphery of the core shaft 11. In particular, the lubricating fluid in the annular cavity 23 can flow into the sleeve through the through hole 211 and further flow into the bearing group for lubrication.

[0034] In one embodiment, the disk portion 122 of the flange 12 is provided with at least connection holes distributed along the outer circumference and connection holes distributed along the inner circumference. The connection holes distributed along the outer circumference are used to fix the disk portion 122 with the outer wheel body 22 by bolts, and the connection holes distributed along the inner circumference are used to fix the disk portion 122 with the inner wheel body 21 by bolts. Such a configuration is equivalent to connecting the outer wheel body 22 and the inner wheel body 21 as a whole with the help of the flange 12, and fixing them firmly. On the other hand, the outer wheel body 22 can be taken out axially by only removing the bolts and the flange 12. The whole process is convenient and fast to operate, and a modular design is also realized, that is, the driving wheel and the driven wheel can be replaced as a whole by only disassembling the flange 12.

[0035] In one embodiment, the support 30, especially located on one side of the driving wheel, may also be provided with a shell to form a closed space, and the power wheel 40 is arranged in the closed space to prevent dust and water. Exemplarily, the shell may be in a split form, including a bottom shell 34 and a top shell 35, the bottom shell 34 is detachably connected to the seat body 31, and the top shell 35 is detachably connected to the cover body 32, so as to ensure convenient and quick disassembly and maintenance.

[0036] The flange 12 in the cutting working state rotates relative to the mandrel 11. In order to improve the processability of the wire groove forming on the outer periphery of the guide wheel rubber sleeve 24, especially to ensure that the wire groove track on a pair of guide wheels 20 is integrated, that is, to avoid the problem that the wire groove spacing between the two guide wheels 20 is inconsistent with the wire groove spacing on a single guide wheel due to the separate processing of the wire groove of each guide wheel 20, the embodiment of the present disclosure forms a second assembly hole 111 on the third shaft section of the mandrel 11, and the neck 121 of the flange 12 forms a first assembly hole 123 that penetrates radially. When the wire groove needs to be processed or repaired, there is no need to remove the guide wheel from the mandrel 11. It is only necessary to use bolts or pins to fix the flange 12 with the mandrel 11 through the first assembly hole 123 and the second assembly hole 111, and the mandrel 11 and the guide wheel can be clamped on the processing equipment as a whole for processing. Such a setting can not only ensure the continuity of the wire groove path on the two guide wheels, the consistency of the spacing between the wire grooves, but also ensure the consistency of the accuracy of wire groove use and wire groove forming.

[0037] It should be noted that in the prior art, when the core shaft 11 is rotated, it is necessary to form a bearing seat in the support 30, for example, the step hole of the bearing seat needs to be processed by a boring process, which is a cumbersome process; the core shaft 11 is rotatably supported between a pair of supports 30 by a bearing. In this case, when processing the wire groove, the bearing seat can only be clamped on the processing equipment, and the wire groove processing is completed by tool feeding. The disclosed embodiment avoids the cumbersome boring process, and can conveniently clamp the first shaft section 112 of the core shaft 11 directly on the lathe chuck, and the wire groove processing can be completed by using a lathe tool, and the efficiency and precision of the entire processing process are better.

[0038] The inventor has found through long-term research and experiments that when a pair of guide wheels 20 are used to construct a guide wheel mechanism, the cutting wire net during the cutting operation will cause the pair of guide wheels to move toward each other, and as the guide wheels wear, the distal torsion wheel applies additional axial force to the guide wheel mechanism through the cutting wire net, thereby affecting the rotation accuracy of the guide wheel mechanism. To avoid this situation, in one embodiment, a pair of deep groove ball bearings 131 are arranged on the side where the guide wheels are close to each other to provide radial support, and a double-row angular contact ball bearing 132 (bearing both axial force and radial force) is arranged on the side where the guide wheels are far away from each other. Since the angular contact ball bearings are arranged on the outside of the guide wheel mechanism, the action area between the two double-row angular contact ball bearings 132 is larger, which can provide a more stable support force for the pair of guide wheels and improve the overall rigidity. Exemplarily, the double-row angular contact ball bearings 132 are installed back-to-back, that is, the double-row contact angles are inclined in the direction away from each other, thereby providing axial component force support for the guide wheels on the side where the guide wheels are away from each other, which is equivalent to pulling the guide wheels axially, avoiding arranging the axial component force support point on the side where the guide wheels are close to each other (in this case, it is equivalent to pushing the guide wheels axially, which can easily cause slight axial deformation of the guide wheels, thereby affecting the cutting operation accuracy of the cutting wire network).

[0039] It should be noted that during the rotation operation of the guide wheel of the disclosed embodiment, it is only necessary to bear radial force at one end of each guide wheel and simultaneously bear axial force and radial force at the other end. By providing a pair of deep groove ball bearings and a double-row angular contact ball bearing, the bearing size and weight can be minimized in the axial direction on the basis of ensuring the support area and bearing force direction requirements between the bearing and the guide wheel, thereby ensuring the simplified and lightweight requirements of the guide wheel mechanism structure. In addition, according to the disclosed embodiment, since the bearing is arranged inside the guide wheel 20 (compared to the prior art in which the bearing is arranged inside the bearing seat of the support), a bearing with a larger radial dimension can be used, thereby improving the bearing load capacity of the bearing.

[0040] In one embodiment, a pair of deep groove ball bearings 131 and double row angular contact ball bearings 132 are symmetrically arranged in the axial direction relative to the center line of the corresponding guide wheel, and the axial spacing L2 between the pair of deep groove ball bearings 131 and the double row angular contact ball bearings 132 is 2 / 3-3 / 4 of the axial dimension L1 of the corresponding guide wheel. The bearing positions are arranged in this way. After simulation and field tests by the inventor, the best rotation accuracy of the guide wheel can be obtained. The possible reason is that if L2 is too large, the middle part of each guide wheel cannot obtain effective radial support, so that the guide wheel tends to collapse in the middle. If L2 is too small, it cannot provide sufficient load-bearing capacity for the cutting wire network at both end areas of the guide wheel. Therefore, designing to the above numerical range can obtain the best balance effect.

[0041] In the disclosed embodiment, the bearing seals at different positions of the core shaft 11 are slightly different. Figure 4As shown, the outer ring pressing block 141 presses against the outer ring of the double-row angular contact ball bearing 132 through the raised outer ring pressing portion, and the inner ring pressing portion of the inner ring pressing block 142 passes through the inner circumference of the outer ring pressing block 141 and presses against the inner ring of the double-row angular contact ball bearing 132. The outer ring pressing block 141 is spaced between the double-row angular contact ball bearing 132 and the inner ring pressing block 142, and a labyrinth sealing structure is formed between the two, so that the slight relative movement of the outer ring and the inner ring of the double-row angular contact ball bearing 132 along the axial direction can automatically adjust the sealing tightness of the labyrinth sealing structure to ensure the dustproof effect.

[0042] In another embodiment, if Figure 5 and 6 As shown, only the inner ring abutment block 142 is provided, and the labyrinth sealing structure and the outer ring abutment portion are directly formed on the inner wheel body 21 of the guide wheel 20, making the structure more compact.

[0043] In one embodiment, Figure 4 and 5 As shown, the nut 143 is screwed onto the outer periphery of the third shaft section of the core shaft 11 from the outside, thereby achieving axial limiting locking of the bearing.

[0044] In one embodiment, Fig. 9 As shown, since the guide wheel 20 will be subjected to multiple directional forces caused by the cutting wire net during operation, in order to ensure the stable position of the guide wheel mechanism and thus ensure the running accuracy of the cutting wire net, a longitudinal groove 311 and a transverse groove 312 can be formed at the bottom of the seat body 31, and corresponding keys are embedded in the grooves to achieve a firm installation between the support 30 and the guide wheel mechanism installation foundation in the transverse and longitudinal directions.

[0045] In one embodiment, a step surface is formed between the first shaft section and the second shaft section of the core shaft 11 for abutting against the side of the support portion 33 , thereby providing axially stable positioning for the core shaft 11 .

[0046] The disclosed embodiment also provides a cutting device using a cutting wire net, wherein at least two guide wheel mechanisms are provided, wherein a driving wheel of one guide wheel mechanism and a driven wheel of another guide wheel mechanism rotate in coordination with each other through winding cutting wires, thereby realizing cutting operations on superhard materials.

[0047] The description of the embodiments herein and any reference to directions and orientations are only for the convenience of description and are not to be construed as any limitation on the scope of protection of the present disclosure. The description of the preferred embodiments may involve combinations of features, which may exist independently or in combination, and the present disclosure is not particularly limited to the preferred embodiments. The scope of the present disclosure is defined by the claims.

[0048] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A guide wheel mechanism for cutting wire net, characterized in that: include: A shaft system (10) comprising a core shaft (11) and a bearing group arranged on the core shaft (11); At least two guide wheels (20) are rotatably supported on the core shaft (11) via the bearing group, and the at least two guide wheels (20) rotate independently of each other; A pair of supports (30) are fixedly supported at both ends of the core shaft (11), each of the supports (30) being provided with a seat body (31) and a cover body (32), the seat body (31) and the cover body (32) respectively forming mutually matching semicircular support portions (33), so that when the support portions (33) of the seat body (31) and the cover body (32) are in a state of being closed together to support the end of the core shaft (11), the support portions (33) can be fixedly supported on the core shaft (11), wherein the support portions (33) of the seat body (31) and the cover body (32) are in a state of being closed together to present a horizontal half-section structure.

2. The guide wheel mechanism for cutting wire net according to claim 1, characterized in that: It also includes a power wheel (40) rotatably supported at the end of the core shaft (11) and located inside the support (30), wherein the power wheel (40) is integrally connected to at least the guide wheel (20) located outside.

3. The guide wheel mechanism for cutting wire net according to claim 2, characterized in that: The support (30) further comprises a bottom shell (34) and a top shell (35), wherein the bottom shell (34) and the top shell (35) are detachably connected to the base body (31) and the cover body (32), respectively, and the bottom shell (34) and the top shell (35) are folded together to form a closed space surrounding the power wheel (40).

4. The guide wheel mechanism for cutting wire net according to claim 2, characterized in that: The shaft system (10) is provided with a flange (12), the flange being provided with a neck (121) and a disk (122), the power wheel (40) being sleeved on the neck (121) and being fixedly connected to the neck (121), and the end of the guide wheel (20) being pressed against the disk (122) and being fixedly connected to the disk (122).

5. The guide wheel mechanism for cutting wire net according to claim 4, characterized in that: The neck (121) is formed with a first assembly hole (123) extending radially therethrough, and the core shaft (11) is formed with a second assembly hole (111) matching the first assembly hole (123), so that when the guide wheel (20) and the core shaft (11) are installed in place, the first assembly hole (123) and the second assembly hole (111) correspond in position.

6. The guide wheel mechanism for cutting wire net according to claim 4, characterized in that: The guide wheel (20) is provided with an inner wheel body (21) and an outer wheel body (22), and the ends of the inner wheel body (21) and the outer wheel body (22) are respectively pressed against the disc portion (122) and fixedly connected to the disc portion (122).

7. The guide wheel mechanism for cutting wire net according to claim 6, characterized in that: An annular cavity (23) is formed between the inner wheel body (21) and the outer wheel body (22), and a through hole (211) is formed on the inner peripheral wall of the inner wheel (21), wherein the through hole (211) is used to connect the annular cavity (23) and the outer periphery of the core shaft (11).

8. The guide wheel mechanism for cutting wire net according to claim 1, characterized in that: There are two guide wheels (20), and the bearing group comprises at least a deep groove ball bearing (131) and a double row angular contact ball bearing (132). Each guide wheel (30) is provided with a pair of deep groove ball bearings (131) on the side close to the adjacent guide wheel, and a double row angular contact ball bearing (132) on the side away from the adjacent guide wheel, wherein the double row angular contact ball bearings (132) are installed back to back.

9. The guide wheel mechanism for cutting wire net according to claim 8, characterized in that: A pair of deep groove ball bearings (131) and a double row angular contact ball bearing (132) are symmetrically arranged in the axial direction relative to the center line of the corresponding guide wheel (20), and the axial spacing between the pair of deep groove ball bearings and the double row angular contact ball bearing (132) is 2 / 3-3 / 4 of the axial dimension of the corresponding guide wheel (20).

10. The guide wheel mechanism for cutting wire net according to claim 1, characterized in that: Also includes: An outer ring abutting portion, used for abutting against the outer ring of the bearing assembly; An inner ring abutment portion, used to pass through the inner periphery of the outer ring abutment portion and abut against the inner ring of the bearing assembly; A labyrinth seal portion is formed on a side of the outer ring abutment portion away from the bearing assembly.

11. The guide wheel mechanism for cutting wire net according to claim 1, characterized in that: A "cross" keyway is provided at the bottom of the seat body (31), and a shaft shoulder is formed on the contact surface between the core shaft (11) and the support portion (33).

12. A cutting device using a cutting wire net, characterized in that: It comprises a guide wheel mechanism as claimed in any one of claims 1 to 11.

Images