Stepless regulation cutting device for cutting line supporting roller

Abstract

The utility model relates to a cutting device capable of steplessly adjusting a cutting line supporting roller, which solves the problem that the distance between adjacent supporting roller components in the prior art cannot be adjusted or is only adjusted in a fixed specification within a limited range, and adopts the technical scheme that the cutting device comprises two bases which are respectively matched with two sides of a cutting chamber, the two ends of each supporting roller assembly are connected to the corresponding base in a bearing mode. The stepless adjusting device is characterized in that each base is provided with a stepless adjusting assembly; the stepless adjustment assembly is used for stepless adjustment of the distance between the first supporting roller assembly and the second supporting roller assembly and stepless adjustment of the height between the third supporting roller assembly and the plane where the first supporting roller assembly and the second supporting roller assembly are located. The cutting device has the advantages that by adjusting the stepless adjusting assembly, the distance between the adjacent supporting roller assemblies is adjusted in a stepless mode, adjustment is convenient, the adjusting efficiency is high, the adjusting intensity of workers is greatly reduced, and the working efficiency of the cutting device is improved.

Description

Technical Field

[0001] The utility model relates to the field of slicers for cutting hard and brittle materials, in particular to a cutting device with a cutting line support roller that can be adjusted steplessly. Background Art

[0002] Cutting machines often feature three sets of support roller assemblies around which the cutting wire is wound. These three support roller assemblies are arranged in a triangular pattern, with two upper support roller assemblies and one lower support roller assembly. Existing cutting devices have a fixed spacing between the three support roller assemblies, making them incapable of adjusting to the width of the hard and brittle material bars being cut (such as silicon ingots). This results in poor cutting efficiency and yield.

[0003] To this end, the applicant has designed a new solution and applied for a utility model patent, which has been authorized. Its patent number is "ZL202010602778.5", and the patent name is "A device and method for changing the center distance of a slicer guide wheel". The technical solution disclosed in the patent: a device for changing the center distance of a slicer guide wheel, comprising a cutting chamber frame, a rotatable front indexing plate and a rear indexing plate are respectively installed on both sides of the cutting chamber frame, and a plurality of support roller assemblies are installed between the front indexing plate and the rear indexing plate, and the center distances between adjacent support roller assemblies are set differently. The utility model solves the problem that the center distance between the two guide wheels cannot be changed by setting a indexing plate structure and arranging unequally spaced guide wheel devices on the indexing plate, so that the center distance between adjacent guide wheels can be selected in multiple gears, which can be suitable for cutting hard and brittle materials of various specifications and sizes, and improves the limitation that the slicer can only cut a single specification and size. It is only necessary to rotate the indexing plate for adjustment, which is simple and convenient to operate.

[0004] Because the technical solution involved in the applicant's prior patent, once the front and rear indexing plates are installed on the cutting device, the spacing between two adjacent support roller assemblies in the three support roller assemblies is fixed, making it difficult to adapt to the increasing demand for the standard sizes of hard and brittle material rods. To meet the needs of hard and brittle material rods of various specifications and sizes, it is necessary to replace different front and rear indexing plates to change the spacing between two adjacent support roller assemblies. Therefore, it is necessary to equip front and rear indexing plates of various specifications, which increases the cost of equipping front and rear indexing plates of various specifications. At the same time, replacing the front and rear indexing plates is relatively complicated, with low replacement efficiency and high replacement intensity for personnel. Summary of the Invention

[0005] The purpose of the present utility model is to solve the above-mentioned problems existing in the prior art and to provide a cutting device with stepless adjustment of the cutting line support roller. A stepless adjustment component is arranged between the support roller assemblies. By adjusting the stepless adjustment component, the distance between the first support roller assembly and the second support roller assembly can be steplessly adjusted, and the height of the third support roller assembly from the plane where the first support roller assembly and the second support roller assembly are located can be steplessly adjusted, thereby achieving the adjustment of the distance between adjacent support roller assemblies. The adjustment is not only convenient, but also has high adjustment efficiency, and greatly reduces the adjustment intensity of the staff, which is conducive to improving the working efficiency of the cutting device.

[0006] The above technical purpose of the present invention is mainly solved through the following technical solutions: a cutting device with stepless adjustment of the cutting line support roller, comprising two bases respectively cooperating with the two sides of the cutting chamber, and at least three support roller assemblies on the bases at both ends, including a first support roller assembly, a second support roller assembly and a third support roller assembly, characterized in that a stepless adjustment assembly is provided on each of the bases, and the stepless adjustment assembly is used to steplessly adjust the spacing between adjacent support roller assemblies.

[0007] In this technical solution, the stepless adjustment assembly is used to steplessly adjust the spacing between the first support roller assembly and the second support roller assembly, as well as to steplessly adjust the height of the third support roller assembly from the plane on which the first and second support roller assemblies are located. By providing the stepless adjustment assembly between the support roller assemblies, the stepless adjustment assembly is used to steplessly adjust the spacing between the first and second support roller assemblies, as well as the height of the third support roller assembly from the plane on which the first and second support roller assemblies are located, thereby adjusting the spacing between adjacent support roller assemblies. This not only facilitates adjustment but also improves adjustment efficiency, significantly reduces the amount of adjustment effort required by the operator, and thus facilitates improved operating efficiency of the cutting device.

[0008] As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: the stepless adjustment component includes an adjusting member and a supporting member, the adjusting member is arranged between the first support roller assembly and the second support roller assembly, and is used to steplessly adjust the distance between the first support roller assembly and the second support roller assembly, and steplessly adjust the height of the third support roller assembly from the plane where the first support roller assembly and the second support roller assembly are located, and the supporting member is arranged below the third support roller assembly, and is used to support the third support roller assembly.

[0009] Preferably, the first and second support roller assemblies are positioned above, and the third support roller assembly is positioned below. The adjusting member is used not only to adjust the spacing between the first and second support roller assemblies (i.e., the widthwise spacing or horizontal spacing), but also to adjust the distance from the third support roller assembly to the plane containing the first and second support roller assemblies (i.e., the heightwise spacing or vertical spacing, or the distance between the third support roller assembly and the first or second support roller assembly). Furthermore, by steplessly adjusting the thickness and height of the adjusting member, the distance between the first and second support roller assemblies, as well as the distance from the third support roller assembly to the plane containing the first and second support roller assemblies, can be adjusted steplessly, making the stepless adjustment convenient, precise, and efficient.

[0010] Preferably, an assembly cavity is provided on the base, the assembly cavity comprising a transverse guide cavity and a vertical guide cavity. The first bearing seat on the first support roller assembly and the second bearing seat on the second support roller assembly are disposed in the transverse guide cavity, and the third bearing seat on the third support roller assembly is disposed in the vertical guide cavity. The adjustment member is disposed between the first and second bearing seats, with the lower end of the adjustment member resting on the upper end of the third bearing seat. By adjusting the thickness and height of the adjustment member, the spacing between the first and second bearing seats, as well as the distance between the third bearing seat and the plane containing the first and second bearing seats, can be steplessly adjusted. The transverse guide cavity is used not only to accommodate the assembly of the first and second bearing seats, but also to guide the left and right movement of the first and second bearing seats. Similarly, the vertical guide cavity is used to accommodate the third bearing seat and to guide the up and down movement of the third bearing seat, thereby facilitating improved reliability and accuracy of stepless adjustment.

[0011] Preferably, a tie rod is disposed between the first and second bearing seats. The tie rod extends through the first bearing seat, the adjustment member, and the second bearing seat, ensuring stable positioning of the first bearing seat, the adjustment member, and the second bearing seat within the assembly cavity. The tie rod facilitates removal of the adjustment member, allowing replacement of the adjustment member with an appropriate thickness and height, and enabling stepless adjustment of the support roller assemblies. Furthermore, the tie rod secures the first and second bearing seats, the adjustment member, and the first and second bearing seats, thereby enhancing the stability of the arrangement of the first and second bearing seats and the adjustment member.

[0012] Preferably, the assembly cavity is in an inverted "pin" shape, the first bearing seat, the second bearing seat and the third bearing seat are all square-shaped, the longitudinal dimension of the transverse guiding cavity is adapted to the heights of the first bearing seat and the second bearing seat, the third bearing seat is arranged in the vertical guiding cavity, the width of the vertical guiding cavity is adapted to the width of the third bearing seat, and the lower surface of the third bearing seat is supported on the upper surface of the supporting member. The shapes of the bearing seats and the shape of the assembly cavity form a limiting fit, and at the same time, it is beneficial to guide the movement of each bearing seat. When the adjusting member performs stepless adjustment, each bearing seat can accurately move steplessly with each supporting roller assembly, achieving the purpose of accurate stepless adjustment.

[0013] Preferably, the side walls of the first bearing seat and the second bearing seat facing away from each other are in spacing fit with the corresponding side walls of the assembly cavity, for reserving space to enable stepless adjustment of the distance between the first bearing seat and the second bearing seat.

[0014] Preferably, the supporting member is in spacing fit with the lower wall of the assembly cavity, for reserving space to enable the third bearing seat to move up or down for stepless adjustment.

[0015] Preferably, the supporting member fills the lower-end space between the third bearing seat and the assembly cavity. After steplessly adjusting the third bearing seat, select a supporting member with a suitable thickness according to the size of the lower-end space between the third bearing seat and the assembly cavity, so that the supporting member can stably support the third bearing seat.

[0016] Preferably, the adjusting member and the supporting member are fixedly arranged on the base in a position-adjustable manner through a connecting member. When steplessly adjusting each supporting roller assembly, loosen the fixed connection between the adjusting member and the supporting member, replace the adjusting member with a suitable specification size, and then fix the adjusting member and the supporting member to complete the process of stepless adjustment.

[0017] A groove is provided at the upper end of the third bearing seat, and a protrusion is provided at the lower end of the adjusting member. The protrusion is embedded in the groove, which is beneficial to smoothly adjust the position of the third bearing seat.

[0018] The present invention has the following beneficial effects: 1. A stepless adjustment assembly is provided between the support roller assemblies. By adjusting the stepless adjustment assembly, the spacing between the first and second support roller assemblies and the height of the third support roller assembly relative to the plane of the first and second support roller assemblies can be steplessly adjusted, thereby adjusting the spacing between adjacent support roller assemblies. This not only facilitates adjustment but also improves adjustment efficiency and significantly reduces the amount of adjustment required by the operator, thereby improving the operating efficiency of the cutting device. 2. The assembly cavity on the base is used to accommodate each bearing seat and also guide the movement of each bearing seat, facilitating the stepless adjustment assembly to accurately adjust the lateral and vertical displacement of each bearing seat, thereby improving the precision and efficiency of stepless adjustment. 3. By adjusting the thickness of the adjustment member, the spacing between the first and second support roller assemblies above can be steplessly adjusted. By adjusting the height of the adjustment member, the height position of the third support roller assembly below can be steplessly adjusted. The thickness of the adjustment member can be adjusted alone, the height of the adjustment member can be adjusted alone, or both can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present utility model.

[0020] Figure 2 yes Figure 1 A structural schematic diagram from a frontal perspective.

[0021] Figure 3 is Figure 1 A structural diagram of the base is hidden on the basis of the base.

[0022] Figure 4 is Figure 3 Schematic diagram of a structure based on local explosion.

[0023] Figure 5 is Figure 3 A schematic structural diagram of the first bearing seat and the second bearing seat is hidden on the basis.

[0024] In the figure: 1. Adjusting member; 2. Support member; 3. Horizontal guide cavity; 4. Vertical guide cavity; 5. First bearing seat; 6. Second bearing seat; 7. Third bearing seat; 8. Pull rod; 9. Adjusting space; 10. Groove; 11. Protrusion; 12. Base; 13. First support roller; 14. First bearing; 15. Second support roller; 16. Second bearing; 17. Second support roller; 18. Second bearing. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0026] Example: Figure 1-Figure 5 As shown, a cutting device with stepless adjustment of the cutting line support roller includes two bases 12 respectively cooperating with the two sides of the cutting chamber, and at least three support roller assemblies on both ends respectively supported on the base 12, including a first support roller assembly, a second support roller assembly and a third support roller assembly. It is characterized in that a stepless adjustment assembly is provided on each of the bases 12, and the stepless adjustment assembly is used to steplessly adjust the distance between adjacent support roller assemblies.

[0027] In practical applications, the bases 12 on both sides can form an integral structure with other parts of the cutting chamber.

[0028] In practical applications, usually, the first supporting roller assembly and the second supporting roller assembly are arranged at the top, and the third supporting roller assembly is arranged at the bottom.

[0029] The difference between this technical solution and the prior art is that a stepless adjustment component is provided on each of the bases 12, and the stepless adjustment component is used to steplessly adjust the distance between the first support roller assembly and the second support roller assembly, and steplessly adjust the height of the third support roller assembly from the plane where the first support roller assembly and the second support roller assembly are located.

[0030] The technical effect of the improved technical solution is as follows: a stepless adjustment component is set between the support roller assemblies, and the stepless adjustment component is adjusted to steplessly adjust the distance between the first support roller assembly and the second support roller assembly, and steplessly adjust the height of the third support roller assembly from the plane where the first support roller assembly and the second support roller assembly are located, thereby achieving the adjustment of the distance between adjacent support roller assemblies, which is not only convenient for adjustment, but also has high adjustment efficiency, and greatly reduces the adjustment intensity of the staff, which is conducive to improving the working efficiency of the cutting device.

[0031] In actual application, the stepless adjustment component includes an adjustment member 1 and a support member 2. The adjustment member 1 is arranged between the first support roller assembly and the second support roller assembly, and is used to steplessly adjust the distance between the first support roller assembly and the second support roller assembly, and steplessly adjust the height of the third support roller assembly from the plane where the first support roller assembly and the second support roller assembly are located. The support member 2 is arranged below the third support roller assembly, and is used to support the third support roller assembly.

[0032] In practical applications, the first supporting roller assembly and the second supporting roller assembly are arranged at the top, and the third supporting roller assembly is arranged at the bottom.

[0033] In actual application, the adjustment member 1 is used not only to adjust the spacing between the first and second support roller assemblies (i.e., the spacing in the width direction or the horizontal direction), but also to adjust the distance from the third support roller assembly to the plane containing the first and second support roller assemblies (i.e., the height distance or the vertical distance, or the distance between the third support roller assembly and the first or second support roller assembly). Moreover, by steplessly adjusting the thickness and height of the adjustment member 1, the distance between the first and second support roller assemblies, as well as the distance from the third support roller assembly to the plane containing the first and second support roller assemblies, can be steplessly adjusted. The stepless adjustment is convenient, precise, and efficient.

[0034] In actual application, the assembly cavity has a transverse guide cavity 3 and a vertical guide cavity 4, the first bearing seat 5 on the first support roller assembly and the second bearing seat 6 on the second support roller assembly are arranged in the transverse guide cavity 3, and the third bearing seat 7 on the third support roller assembly is arranged in the vertical guide cavity 4, and the adjusting member 1 is arranged between the first bearing seat 5 and the second bearing seat 6, and the lower end of the adjusting member 1 is pressed against the upper end of the third bearing seat 7. By adjusting the thickness and height of the adjusting member 1, the distance between the first bearing seat 5 and the second bearing seat 6, and the distance from the third bearing seat 7 to the plane where the first bearing seat 5 and the second bearing seat 6 are located can be steplessly adjusted.

[0035] The transverse guide cavity 3 is not only used to accommodate the assembly of the first bearing seat 5 and the second bearing seat 6, but also to guide the left and right movement of the first bearing seat 5 and the second bearing seat 6. Similarly, the vertical guide cavity 4 is used to accommodate the third bearing seat 7 and guide the up and down movement of the third bearing seat 7, which is conducive to improving the reliability and accuracy of stepless adjustment.

[0036] In actual application, the first support roller assembly includes a first support roller 13, first bearings 14 respectively arranged at both ends of the first support roller 13, and a first bearing seat 5 cooperating with the first bearing 14; the second support roller assembly includes a second support roller 15, second bearings 16 respectively arranged at both ends of the second support roller 15, and a second bearing seat 6 cooperating with the second bearing 16; the third support roller assembly includes a third support roller 17, third bearings 18 respectively arranged at both ends of the third support roller 17, and a third bearing seat 7 cooperating with the third bearing 18.

[0037] In practical applications, a pull rod 8 is arranged between the first bearing block 5 and the second bearing block 6. The pull rod 8 penetrates through the first bearing block 5, the adjusting member 1, and the second bearing block 6, and is used to stably limit the first bearing block 5, the adjusting member 1, and the second bearing block 6 in the assembly cavity. The arrangement of the pull rod 8 facilitates the disassembly of the adjusting member 1, which is used to replace the adjusting member 1 with appropriate thickness and height for stepless adjustment of each support roll assembly. At the same time, the pull rod 8 tightly fits the first bearing block 5, the second bearing block 6, and the adjusting member 1, which is beneficial to improving the setting stability of the first bearing block 5, the second bearing block 6, and the adjusting member 1.

[0038] In practical applications, the assembly cavity is in an inverted "pin" shape. The first bearing block 5, the second bearing block 6, and the third bearing block 7 are all square-shaped. The longitudinal dimension of the transverse guide cavity 3 is adapted to the height of the first bearing block 5 and the second bearing block 6. The third bearing block 7 is arranged in the vertical guide cavity 4, and the width of the vertical guide cavity 4 is adapted to the width of the third bearing block 7. The lower surface of the third bearing block 7 is supported on the upper surface of the support member 2. The shapes of the bearing blocks and the shape of the assembly cavity form a limit fit, and at the same time, it is beneficial to guide the movement of each bearing block. When the adjusting member 1 is adjusted steplessly, each bearing block can accurately move steplessly with each support roll assembly to achieve the purpose of accurate stepless adjustment.

[0039] In practical applications, the first bearing block 5 and the second bearing block 6 are arranged in the upper region of the assembly cavity, the third bearing block 7 is arranged in the lower region of the assembly cavity, the adjusting member 1 is arranged between the first bearing block 5 and the second bearing block 6, and the lower end of the adjusting member 1 abuts against the upper end of the third bearing block 7. By adjusting the thickness and height of the adjusting member 1, the distance between the first support roll and the second support roll, and the distance from the third support roll to the plane where the first support roll and the second support roll are located are adjusted steplessly.

[0040] In practical applications, a groove 10 is arranged at the upper end of the third bearing block 7, and a protrusion 11 is arranged at the lower end of the adjusting member 1. The protrusion 11 is embedded in the groove 10, which is beneficial to smoothly adjusting the position of the third bearing block 7. Similarly, in practical applications, if the groove is arranged on the adjusting member and the protrusion is arranged on the third bearing block, it also belongs to the protection scope of this patent.

[0041] In practical applications, the first bearing block 5, the second bearing block 6, and the third bearing block 7 are all square-shaped. The upper surfaces of the first bearing block 5 and the second bearing block 6 abut against the upper wall of the assembly cavity, the lower surfaces of the first bearing block 5 and the second bearing block 6 are supported on the middle wall of the assembly cavity, the two opposite side walls of the third bearing block 7 respectively abut against the two side walls of the assembly cavity, and the lower surface of the third bearing block 7 is supported on the upper surface of the support member 2.

[0042] In actual application, the two side walls of the first bearing seat 5 and the second bearing seat 6 that are away from each other are matched with the corresponding two side walls of the assembly cavity to form an adjustment space 9. The adjustment space 9 is used to reserve space so that the distance between the first bearing seat 5 and the second bearing seat 6 can be steplessly adjusted.

[0043] In actual use, the spacing between the support member 2 and the lower wall of the assembly cavity is coordinated to reserve space for the third bearing seat 7 to move upward or downward for stepless adjustment, or the support member 2 fills the space below the third bearing seat 7 and the assembly cavity. After steplessly adjusting the third bearing seat 7, a support member 2 of appropriate thickness is selected based on the size of the space below the third bearing seat 7 and the assembly cavity, so that the support member 2 can stably support the third bearing seat 7.

[0044] In actual application, the adjusting member 1 and the supporting member 2 are fixed to the base 12 in an adjustable manner via a connecting member. When the supporting roller assemblies are steplessly adjusted, the fixed connection between the adjusting member 1 and the supporting member 2 is loosened, and the adjusting member 1 of the appropriate size is replaced, and then the adjusting member 1 and the supporting member 2 are fixed again to complete the stepless adjustment process.

[0045] Based on the aforementioned cutting device with stepless adjustment of the cutting line support roller, its stepless adjustment method is: by adjusting the stepless adjustment component, the distance between the first support roller assembly and the second support roller assembly is steplessly adjusted, and the height of the third support roller assembly from the plane where the first support roller assembly and the second support roller assembly are located is steplessly adjusted.

[0046] In actual application, the purpose of adjusting the distance between adjacent support roller assemblies is achieved by adjusting the stepless adjustment component. The stepless adjustment is convenient and efficient, and greatly reduces the adjustment intensity of the staff, which is conducive to improving the working efficiency of the cutting device.

[0047] In actual application, adjusting the thickness and height of adjusting member 1 allows for stepless adjustment of the spacing between the first and second support roller assemblies, as well as the height of the third support roller assembly relative to the plane containing the first and second support roller assemblies. To steplessly adjust each support roller assembly, the fixed connection between adjusting member 1 and support member 2 is loosened, and after replacing adjusting member 1 with an appropriately sized one, the adjusting member 1 and support member 2 are re-secured to complete the stepless adjustment process.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations are possible in the above embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cutting device with a stepless adjustment of a cutting line support roller, comprising two bases (12) respectively matched with two sides of a cutting chamber, at least three support roller assemblies on both ends of the base (12), including a first support roller assembly, a second support roller assembly and a third support roller assembly, characterized in that An infinitely variable adjusting component is provided on each of the bases (12), and the infinitely variable adjusting component is used to infinitely variably adjust the distance between adjacent supporting roller components.

2. The cutting device with stepless adjustment of the cutting line support roller according to claim 1, characterized in that The infinitely variable adjusting component includes an adjusting member (1) and a supporting member (2). The adjusting member (1) is arranged between the first supporting roller component and the second supporting roller component, and is used to infinitely variably adjust the distance between the first supporting roller component and the second supporting roller component, and infinitely variably adjust the height of the third supporting roller component from the plane where the first supporting roller component and the second supporting roller component are located. The supporting member (2) is arranged below the third supporting roller component and is used to support the third supporting roller component.

3. The cutting device with stepless adjustment of the cutting line support roller according to claim 2, characterized in that An assembly cavity is provided on the base (12). The assembly cavity has a lateral guiding cavity (3) and a vertical guiding cavity (4). The first bearing block (5) on the first supporting roller component and the second bearing block (6) on the second supporting roller component are arranged in the lateral guiding cavity (3). The third bearing block (7) on the third supporting roller component is arranged in the vertical guiding cavity (4). The adjusting member (1) is arranged between the first bearing block (5) and the second bearing block (6). The lower end of the adjusting member (1) abuts against the upper end of the third bearing block (7). By adjusting the thickness and height of the adjusting member (1), the distance between the first bearing block (5) and the second bearing block (6) and the distance from the third bearing block (7) to the plane where the first bearing block (5) and the second bearing block (6) are located are infinitely variably adjusted.

4. The cutting device with stepless adjustment of the cutting line support roller according to claim 3, characterized in that A pull rod (8) is arranged between the first bearing block (5) and the second bearing block (6). The pull rod (8) penetrates through the first bearing block (5), the adjusting member (1), and the second bearing block (6), and is used to stably limit the positions of the first bearing block (5), the adjusting member (1), and the second bearing block (6) in the assembly cavity.

5. The cutting device with stepless adjustment of the cutting line support roller according to claim 3, characterized in that The assembly cavity is in an inverted "pin" shape. The first bearing block (5), the second bearing block (6), and the third bearing block (7) are all square-shaped. The longitudinal dimension of the lateral guiding cavity (3) is adapted to the height of the first bearing block (5) and the second bearing block (6). The third bearing block (7) is arranged in the vertical guiding cavity (4). The width of the vertical guiding cavity (4) is adapted to the width of the third bearing block (7). The lower surface of the third bearing block (7) is supported on the upper surface of the supporting member (2).

6. The cutting device with stepless adjustment of the cutting line support roller according to claim 3, characterized in that Both side walls of the first bearing block (5) and the second bearing block (6) facing away from each other are in clearance fit with the corresponding side walls of the assembly cavity, so as to reserve space for infinitely variably adjusting the distance between the first bearing block (5) and the second bearing block (6).

7. The cutting device with stepless adjustment of the cutting line support roller according to claim 3, characterized in that The supporting member (2) is in clearance fit with the lower wall of the assembly cavity, so as to reserve space for the third bearing block (7) to move up or down for infinitely variable adjustment.

8. The cutting device with stepless adjustment of the cutting line support roller according to claim 3, characterized in that The supporting member (2) fills the space between the third bearing block (7) and the lower end of the assembly cavity.

9. The cutting device with stepless adjustment of the cutting line support roller according to claim 6, 7 or 8, characterized in that The adjusting member (1) and the supporting member (2) are fixedly arranged on the base (12) in a position-adjustable manner through a connecting member.

10. The cutting device with stepless adjustment of the cutting line support roller according to claim 8, characterized in that A groove (10) is provided at the upper end of the third bearing seat (7), and a protrusion (11) is provided at the lower end of the adjusting member (1), and the protrusion (11) is embedded in the groove (10).

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