Eccentric connecting piece, eccentric roller device and wire cutting device

Abstract

The utility model relates to an eccentric connecting piece, an eccentric roller device and a wire cutting device. The eccentric roller device comprises a supporting frame and an eccentric connecting piece. The supporting frame is provided with a first mounting face, and a roll shaft hole and M mounting holes annularly and evenly distributed around the roll shaft hole are formed in the first mounting face. The eccentric connecting piece comprises a cylindrical mounting part, a rotary connecting part and a second mounting surface, the cylindrical mounting part is coaxially located in the roll shaft hole, and the axis of the cylindrical mounting part and the axis of the rotary connecting part are not collinear. The second mounting surface is in contact with the first mounting surface, the second mounting surface is provided with N circular-arc-shaped holes which are annularly and uniformly distributed around the roll shaft hole, and the eccentric connecting piece is detachably and fixedly connected with the circular-arc-shaped holes and the mounting holes through fasteners. Wherein M and N are integers greater than 2. According to the eccentric roller device, the relative angle between the eccentric connecting piece and the supporting frame can be freely adjusted within the range of the central angle of the arc-shaped hole, and the effect of stepless adjustment of the axle distance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, in particular to an eccentric connecting piece, an eccentric roller device and a wire cutting device. Background Art

[0002] In the field of online cutting technology, taking a slicer as an example, two cutting rollers are usually installed on the frame in parallel and at intervals, and the cutting wire is spirally wound on the two cutting rollers to form a cutting wire network. The wheelbase between the two cutting rollers determines the width of the piece to be cut. Figure 1 and Figure 2 As shown, in the prior art, in order to improve the universality of the slicer, the two cutting rollers are transformed into eccentric rollers 90, and annular evenly distributed bolt holes 91 are set on the frame and the eccentric roller, and the central angle corresponding to two adjacent mounting holes is a. When in use, the eccentric roller can be rotated at an angle of an integer multiple of a to adjust the wheelbase between the two eccentric rollers.

[0003] The above technical solution can only adjust a limited number of wheelbases, that is, it can only perform "step-by-step adjustment of wheelbase" and cannot achieve "stepless adjustment of wheelbase". Utility Model Content

[0004] In view of the above problems, the present invention proposes an eccentric connecting member, an eccentric roller device and a wire cutting device which at least partially solve the above problems, aiming to solve the problem in the prior art that the eccentric roller device can only perform "step-by-step adjustment of the wheelbase".

[0005] Specifically, the first aspect of the present invention provides the following technical solutions:

[0006] An eccentric roller device comprises a support frame and an eccentric connecting piece.

[0007] The support frame has a first mounting surface, and the first mounting surface is provided with a roller shaft hole and M mounting holes annularly distributed around the roller shaft hole.

[0008] The eccentric connector includes a cylindrical mounting portion, a rotating connecting portion, and a second mounting surface. The cylindrical mounting portion is coaxially located in the roller shaft hole, and the axis center line of the cylindrical mounting portion is not colinear with the axis center line of the rotating connecting portion. The second mounting surface contacts the first mounting surface, and the second mounting surface is provided with N circular arc holes uniformly distributed around the roller shaft hole. The eccentric connector is detachably fixed to the circular arc hole and the mounting hole by a fastener.

[0009] Wherein, M and N are both integers greater than 2.

[0010] Optionally, the central angle of the arc-shaped hole is greater than or equal to 1 / 2 of the central angles corresponding to two adjacent mounting holes.

[0011] Optionally, M is greater than or equal to N, and the central angle of the arc-shaped hole is greater than or equal to 180 / N degrees.

[0012] Optionally, the eccentric connecting member is an eccentric sleeve, and the rotating connecting portion is an eccentric hole of the eccentric sleeve.

[0013] Optionally, the eccentric connecting member is an eccentric bearing box, and the rotating connecting part is an output shaft of the eccentric bearing box.

[0014] Optionally, M is greater than or equal to 4, and N is less than or equal to M / 2.

[0015] Optionally, the central angle of the arc-shaped hole is greater than or equal to twice the central angles corresponding to two adjacent mounting holes.

[0016] Optionally, the mounting hole is a threaded hole. The fastener comprises a pressing block and a bolt, the pressing block is provided with a through hole. The bolt passes through the through hole and the arc-shaped hole in sequence and is threadedly connected to the mounting hole.

[0017] The pressing block is in an arc shape, and the central angle of the pressing block is greater than or equal to twice the central angle corresponding to two adjacent mounting holes. There are at least two through holes, and the central angle corresponding to two adjacent through holes is an integer multiple of the central angle corresponding to two adjacent mounting holes.

[0018] Optionally, the mounting hole is a threaded hole, and the arc-shaped hole is a countersunk hole.

[0019] The fastener comprises a pressing block and a bolt, wherein the pressing block is provided with a through hole, and the bolt passes through the through hole and the countersunk hole in sequence and is threadedly connected to the mounting hole.

[0020] Optionally, the pressing block is in an arc shape.

[0021] Optionally, the mounting hole is a threaded hole, and the hole wall of the arc-shaped hole is a conical surface.

[0022] The fastener comprises a tapered sleeve and a bolt, wherein the tapered sleeve is provided with a through hole, and the bolt passes through the through hole and the arc-shaped hole in sequence and is threadedly connected to the mounting hole.

[0023] Optionally, the supporting frames are two fixedly connected, and each of the supporting frames is fixedly connected to one of the eccentric connecting members.

[0024] Optionally, two first mounting surfaces are arranged on the support frame, and two groups of the roller shaft holes and the mounting holes are correspondingly arranged, and each of the first mounting surfaces is fixedly connected to one of the eccentric connecting members.

[0025] Optionally, two roller shaft holes and two corresponding groups of mounting holes are arranged on the first mounting surface, and each roller shaft hole is fixedly connected to one of the eccentric connecting members.

[0026] The second aspect of the utility model provides an eccentric connector, which includes a cylindrical mounting portion, a rotating connecting portion, and a second mounting surface, wherein the cylindrical mounting portion is fixedly connected to the second mounting surface, and the axis of the cylindrical mounting portion is not colinear with the axis of the rotating connecting portion. The second mounting surface is provided with N circular arc holes uniformly distributed around the cylindrical mounting portion. N is an integer greater than or equal to 2.

[0027] Optionally, a central angle of the arc-shaped hole is greater than or equal to 180 / N degrees.

[0028] Optionally, the eccentric connecting member is an eccentric sleeve, and the rotating connecting portion is an eccentric hole of the eccentric sleeve.

[0029] Optionally, the eccentric connecting member is an eccentric bearing box, and the rotating connecting part is an output shaft of the eccentric bearing box.

[0030] The third aspect of the utility model provides a wire cutting device, which includes a cutting roller and the above-mentioned eccentric roller device, and the cutting roller is coaxially connected to the rotating connection part.

[0031] Optionally, the wire cutting device comprises a cutting roller, a frame and the above-mentioned eccentric roller device. The frame forms the supporting frame.

[0032] Optionally, the frame is fixedly connected to the support frame.

[0033] Optionally, the wire cutting device comprises a cutting roller and the above-mentioned eccentric connecting member, and the cutting roller is coaxially connected to the rotating connecting part.

[0034] The present application provides an eccentric roller device, in which an arc-shaped hole is provided on the eccentric connector, and a mounting hole is provided on the support frame, and the eccentric connector is detachably fixedly connected to the support frame by a fastener. When the eccentric connector is installed on the support frame, for each mounting hole position, the relative angle between the eccentric connector and the support frame can be arbitrarily adjusted within the range of the center angle of the arc-shaped hole, so that on the projection of any plane of the axis line passing through the roller shaft hole, at least within the range corresponding to the center angle of the arc-shaped hole, the distance between the axis line of the rotating connection part and the axis line of the roller shaft hole can be continuously adjusted. The effect of "stepless adjustment of wheelbase" is achieved.

[0035] Furthermore, in the eccentric roller device provided by the present application, the central angle of the arc-shaped hole is greater than or equal to 1 / 2 of the central angles corresponding to two adjacent mounting holes; and / or M is greater than or equal to N, and the central angle of the arc-shaped hole is greater than or equal to 180 / N degrees. The relative angle between the eccentric connector and the support frame can be adjusted arbitrarily between 0 and 360 degrees, thereby further improving the effect of "stepless adjustment of wheelbase".

[0036] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0038] Figure 1 is a schematic front view of an eccentric sleeve device according to the prior art;

[0039] Figure 2 is a schematic front view of an eccentric bearing box according to the prior art;

[0040] Figure 3 is a schematic front view of an eccentric roller device according to an embodiment of the utility model;

[0041] Figure 4 is a schematic front view of an eccentric connector according to an embodiment of the utility model;

[0042] Figure 5 is a schematic side view of an eccentric connector according to an embodiment of the utility model;

[0043] Figure 6 is a schematic front view of an eccentric connector according to an embodiment of the utility model;

[0044] Figure 7 is a schematic side view of an eccentric connector according to an embodiment of the utility model;

[0045] Figure 8 is a schematic front view of a pressing block of an eccentric roller device according to an embodiment of the utility model;

[0046] Fig. 9 yes Figure 8 Schematic cross-sectional view along the AA axis;

[0047] Fig.10is a schematic front view of a pressing block of an eccentric roller device according to an embodiment of the utility model;

[0048] Fig.11 is a schematic cross-sectional view of an eccentric roller device according to an embodiment of the utility model;

[0049] Fig.12 is a schematic cross-sectional view of an eccentric roller device according to another embodiment of the utility model;

[0050] Fig.13 is a schematic cross-sectional view of an eccentric roller device according to another embodiment of the utility model;

[0051] Fig.14 It is a schematic cross-sectional view of an eccentric roller device according to another embodiment of the utility model.

[0052] List of reference numerals:

[0053] 10. Support frame; 11. First mounting surface; 12. Roller shaft hole; 13. Mounting hole; 20. Eccentric connecting piece; 22. Rotating connecting part; 21. Second mounting surface; 23. Arc-shaped hole; 24. Columnar mounting part; 30. Fastener; 31. Press block; 32. Bolt; 33. Conical sleeve; 34. Through hole. DETAILED DESCRIPTION

[0054] Refer to the following Figures 1 to 14 The eccentric connector, eccentric roller device and wire cutting device of the embodiment of the utility model are described. In the description of the present embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0055] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0056] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] refer to Figure 1 , Figure 1 2 is a schematic front view of an eccentric sleeve device according to the prior art. Figure 1 Two eccentric sleeves are shown in the figure. Points A1 and B1 are the centers of the outer circles of the two eccentric sleeves, and points A2 and B2 are the centers of the eccentric holes of the two eccentric sleeves. Each eccentric sleeve has N mounting holes evenly distributed in an annular pattern. The center angle between two adjacent mounting holes is a( Figure 1 N=36, a=10°), the eccentricity is L2, and the distance between points A1 and B1 is L1.

[0059] According to the geometric relationship, the wheelbase of the two eccentric sleeves is L3 = L1-2*L2*COS(na).

[0060] In the above formula, n is any integer from 1 to N. That is to say, the wheelbase L3 of the two eccentric sleeves is finite. That is, only "step-by-step adjustment of wheelbase" can be performed, and "stepless adjustment of wheelbase" cannot be achieved.

[0061] Figure 3 is a schematic structural diagram of an eccentric roller device according to an embodiment of the utility model, as shown in Figure 3 As shown, combined with Figure 3-14 The utility model provides an eccentric roller device, including a support frame 10 and an eccentric connecting member 20.

[0062] The support frame 10 has a first mounting surface 11 , on which a roller shaft hole 12 and M mounting holes 13 evenly distributed in an annular shape around the roller shaft hole 12 are provided.

[0063] The eccentric connector 20 includes a cylindrical mounting portion 24, a rotating connecting portion 22, and a second mounting surface 21. The cylindrical mounting portion 24 is coaxially disposed in the roller shaft hole 12, and the axis centerline of the rotating connecting portion 22 is not colinear with the axis centerline of the cylindrical mounting portion 24. The second mounting surface 21 contacts the first mounting surface 11. The second mounting surface 21 is provided with N circular arc holes 23 evenly distributed around the roller shaft hole 12. The eccentric connector 20 is detachably fixedly connected to the circular arc holes 23 and the mounting hole 13 by fasteners 30.

[0064] Wherein, M and N are both integers greater than 2.

[0065] Figure 3 In the figure, points C1 and D1 are the centers of the outer circles of the two eccentric connectors 20, that is, the centers of the roller shaft hole 12; points C2 and D2 are the centers of the rotating connection parts 22 of the two eccentric connectors 20; the eccentricity is L2, and the distance between points C1 and D1 is L1. The angle between line D1D2 and line C1D1 is d, and the angle between line C1C2 and line C1D1 is also d. On the first mounting surface 11, the center angle of two adjacent mounting holes 13 is b. The center angle of the arc-shaped hole 23 is c.

[0066] According to the geometric relationship, the axis distance L3 of the axis center lines of the rotating connection parts 22 of the two eccentric connecting members 20 is L1-2*L2*cos(d).

[0067] It can be obtained from the above formula that, for one mounting hole 13, the angle of the eccentric connector 20 can be continuously adjusted at least within the range corresponding to the central angle c of the arc-shaped hole 23. Considering the positive and negative rotation, for one mounting hole 13, the eccentric connector 20 can be continuously adjusted at least within the range of 2*c.

[0068] When in use, the value of d can be calculated by the above formula according to the required value of L3. If the value of d is within the adjustable range, the eccentric connector 20 is rotated so that the angle between line D1D2 and line C1D1 is d, and the angle between line C1C2 and line C1D1 is d. Finally, the fastener 30 can be installed.

[0069] It should be noted that Figure 3 The figure shows an embodiment in which two eccentric connecting members 20 are detachably fixedly mounted on the support frame 10. Figure 3Any one of the eccentric connectors 20 can be replaced with a centering roller, and by rotating the remaining eccentric connector 20, the wheelbase between the axis of the rotating connector 22 of the eccentric connector 20 and the axis of the centering roller can be continuously adjusted within a certain range. That is to say, during installation, the relative angle between the eccentric connector 20 and the support frame 10 can be arbitrarily adjusted within a certain range, so that on the projection of any plane of the axis passing through the roller shaft hole 12, the distance between the axis of the rotating connector 22 and the axis of the roller shaft hole 12 can be continuously adjusted within a certain range. The effect of "stepless adjustment of wheelbase" is achieved.

[0070] In particular, when the eccentric roller device of the utility model is used to modify the existing eccentric roller device, it is not necessary to modify the support frame at all. It is only necessary to expand the hole on the second mounting surface 21 of the eccentric connecting member 20 and process it into an arc-shaped hole 23 to achieve the effect of "steplessly adjusting the wheelbase" of the existing eccentric roller device. The modification process is simple and the modification cost is low.

[0071] In some embodiments of the eccentric roller device of the present invention, the central angle c of the arc-shaped hole 23 is greater than or equal to 1 / 2 of the central angles corresponding to two adjacent mounting holes 13 .

[0072] In this embodiment, since c is greater than or equal to b / 2, it can be known from L3=L1-2*L2*cos(d) that the eccentric connecting member 20 and the support frame 10 can be at any relative angle, that is, d can be any value within 0 to 360 degrees, and L3 can be any value between L1-2*L2 and L1+2*L2. The adjustment range of the wheelbase of the eccentric roller device can be further improved, and the applicability of the eccentric roller device can be improved.

[0073] In some embodiments of the eccentric roller device of the present invention, M is greater than or equal to N, and the central angle c of the arc-shaped hole 23 is greater than or equal to 180 / N degrees.

[0074] It can be known from the geometric relationship that when M is greater than or equal to N, and the central angle c of the arc-shaped hole 23 is greater than or equal to 180 / N degrees, the eccentric connector 20 and the support frame 10 can be at any relative angle, that is, d can be any value within 0 to 360 degrees, and L3 can be any value between L1-2*L2 and L1+2*L2. The adjustment range of the wheelbase of the eccentric roller device can be further improved, and the applicability of the eccentric roller device can be improved.

[0075] In some embodiments of the eccentric roller device of the present invention, the eccentric connecting member 20 is an eccentric sleeve, and the rotating connecting portion 22 is an eccentric hole of the eccentric sleeve.

[0076] In this embodiment, the relative angle between the eccentric hole and the support frame 10 can be adjusted arbitrarily by rotating the eccentric sleeve, so that the distance between the axis of the eccentric hole and the axis of the roller shaft hole 12 can be continuously adjusted on the projection of any plane passing through the axis of the roller shaft hole 12, thereby achieving the effect of "steplessly adjusting the wheelbase".

[0077] It should be emphasized that, in this embodiment, the eccentric hole does not have to be a circular hole, but can be a polygonal hole, and the axis of the rotating connecting part 22 is represented by the axis of the circumscribed circle or the inscribed circle of the polygonal hole.

[0078] In some embodiments of the eccentric roller device of the present invention, the eccentric connecting member 20 is an eccentric bearing box, and the rotating connecting part 22 is an output shaft of the eccentric bearing box.

[0079] In this embodiment, the relative angle between the output shaft and the support frame 10 can be adjusted arbitrarily by rotating the eccentric bearing box, so that the distance between the axis of the output shaft and the axis of the roller axis hole 12 can be continuously adjusted on the projection of any plane passing through the axis of the roller axis hole 12, thereby achieving the effect of "steplessly adjusting the wheelbase".

[0080] It should be emphasized that, in this embodiment, the output shaft does not have to be a circular shaft, but can be a polygonal shaft, and the axis centerline of the rotating connecting portion 22 is represented as the axis centerline of the circumscribed circle or the inscribed circle of the polygonal shaft.

[0081] In some embodiments of the eccentric roller device of the present invention, as Figures 3 to 7 As shown, M is greater than or equal to 4, and N is less than or equal to M / 2. Figure 3 , M equals 36 and N equals 8.

[0082] Since the mounting holes 13 are evenly distributed in a ring shape, the larger the M is, the smaller the central angle b corresponding to two adjacent mounting holes 13 is, and the central angle c of the arc-shaped hole 23 does not need to be set very large, so the arc length of the arc-shaped hole 23 can be shortened. On the one hand, it can avoid the reduction of the strength of the eccentric connector 20 caused by the arc length of the arc-shaped hole 23 being too long, and on the other hand, it is convenient to process the arc-shaped hole 23 on the second mounting surface 21.

[0083] In some embodiments of the eccentric roller device of the present invention, as Figures 3 to 7 As shown, the central angle c of the arc-shaped hole 23 is greater than or equal to twice the central angle b corresponding to two adjacent mounting holes 13 .

[0084] In this embodiment, under the premise of meeting the strength requirement, the central angle c of the arc-shaped hole 23 is set to be larger. In this way, when adjusting the angle of the eccentric connecting member 20 within the range of the central angle c of the arc-shaped hole 23, it is only necessary to loosen the fastener 30 and rotate the eccentric connecting member 20, and it is not necessary to remove the fastener 30. This can reduce the time for disassembly and assembly.

[0085] In some embodiments of the eccentric roller device of the present invention, as Figures 8-9 As shown, the mounting hole 13 is a threaded hole. The fastener 30 includes a pressing block 31 and a bolt 32. The pressing block 31 is provided with a through hole 34. The bolt 32 passes through the through hole 34 and the arc-shaped hole 23 in sequence and is threadedly connected to the mounting hole 13.

[0086] The pressing block 31 is arc-shaped, and the central angle of the pressing block 31 is greater than or equal to twice the central angle of two adjacent mounting holes 13. There are at least two through holes 34, and the central angle of two adjacent through holes 34 is an integer multiple of the central angle of two adjacent mounting holes 13.

[0087] In this embodiment, the bolt 32 may also be a threaded connector such as a screw. The pressing block 31 is in an arc shape, and the diameter of the arc is equal to the diameter of the circumference of the multiple mounting holes 13. The pressing block 31 is provided with two or more through holes 34 at intervals along the arc direction. During installation, one pressing block 31 can be threadedly connected to the support frame 10 through two or more bolts 32, which can improve the reliability of the fixed connection between the eccentric connector 20 and the support frame 10 and reduce the time for disassembly and assembly.

[0088] Preferably, if Fig. 9 As shown, the through hole 34 on the pressing block 31 is a countersunk hole, which can further improve the reliability of the fixed connection between the eccentric connecting member 20 and the support frame 10, and can constrain the position of the bolt 32 to avoid looseness or relative sliding between the eccentric connecting member 20 and the support frame 10 during cutting operations.

[0089] In some embodiments of the eccentric roller device of the present invention, as Figures 8 to 12 As shown, the mounting hole 13 is a threaded hole, and the arc-shaped hole 23 is a countersunk hole.

[0090] The fastener 30 includes a pressing block 31 and a bolt 32 . The pressing block 31 is provided with a through hole 34 . The bolt 32 passes through the through hole 34 and the countersunk hole in sequence and is threadedly connected to the mounting hole 13 .

[0091] In this embodiment, the arc-shaped hole 23 is a countersunk hole, which can further constrain the radial position of the pressing block 31 and improve the reliability of the fixed connection between the eccentric connector 20 and the support frame 10. The pressing block 31 can be circular, square, polygonal, arc-shaped, etc. The through hole 34 provided on the pressing block 31 can be a cylindrical hole, a conical hole, a countersunk hole, etc. The fastener 30 can also include a washer, etc.

[0092] In some embodiments of the eccentric roller device of the present invention, as Figure 8-10 As shown, the pressing block 31 is in an arc shape. The arc-shaped pressing block 31 can increase the contact area between the pressing block 31 and the arc-shaped hole 23, thereby improving the reliability of the fixed connection between the eccentric connecting member 20 and the supporting frame 10.

[0093] Of course, in other embodiments of the eccentric roller device of the present invention, the pressing block 31 may be square, rectangular, polygonal, etc. The pressing block 31 may be provided with one or more through holes.

[0094] In some embodiments of the eccentric roller device of the present invention, as Fig.13 As shown, the mounting hole 13 is a threaded hole, and the hole wall of the arc-shaped hole 23 is a conical surface.

[0095] The fastener 30 includes a tapered sleeve 33 and a bolt 32 . The tapered sleeve 33 is provided with a through hole 34 . The bolt 32 passes through the through hole 34 and the arc-shaped hole 23 in sequence and is threadedly connected to the mounting hole 13 .

[0096] The tapered sleeve 33 cooperates with the tapered surface wall of the arc-shaped hole 23 to improve the connection strength of the bolt 32 , thereby improving the reliability of the fixed connection between the eccentric connector 20 and the support frame 10 .

[0097] In some embodiments of the eccentric roller device of the present invention, there are two support frames 10 that are fixedly connected, and each support frame 10 is fixedly connected to an eccentric connecting member 20 .

[0098] In some embodiments of the eccentric roller device of the present invention, as Figure 3 As shown, two first mounting surfaces 11 are provided on the support frame 10 , and two groups of roller shaft holes 12 and mounting holes 13 are correspondingly provided, and each first mounting surface 11 is fixedly connected to an eccentric connecting member 20 .

[0099] In some embodiments of the eccentric roller device of the present invention, two roller shaft holes 12 and two corresponding groups of mounting holes 13 are provided on the first mounting surface 11 , and each roller shaft hole 12 is fixedly connected to an eccentric connecting member 20 .

[0100] In some embodiments of the eccentric connector of the present invention, Figures 4 to 7 As shown, the eccentric connecting member 20 includes a cylindrical mounting portion 24, a rotating connecting portion 22 and a second mounting surface 21. The cylindrical mounting portion 24 is fixedly connected to the second mounting surface 21, and the axis of the cylindrical mounting portion 24 is not colinear with the axis of the rotating connecting portion 22. The second mounting surface 21 is provided with N arc-shaped holes 23 uniformly distributed around the cylindrical mounting portion 24 in an annular shape. N is an integer greater than or equal to 2.

[0101] The central angle of the arc-shaped hole 23 is greater than or equal to 180 / N degrees.

[0102] In this embodiment, when the eccentric connector 20 is installed on the corresponding support frame 10, it can be at any relative angle.

[0103] When modifying the existing eccentric roller 90, it is only necessary to expand the multiple bolt holes 91 on the second mounting surface 21 of the eccentric sleeve and process them into arc-shaped holes 23, so as to achieve the effect of "steplessly adjusting the wheelbase" of the existing eccentric roller 90. The modification process is simple and the modification cost is low.

[0104] It should be noted that in other embodiments of the eccentric connector of the present invention, the N arc-shaped holes 23 may not be evenly distributed around the cylindrical mounting portion 24, as long as they can cooperate with the bolts to achieve stepless adjustment.

[0105] In some embodiments of the eccentric connector of the present invention, Figures 4 to 7 As shown, the eccentric connecting member 20 is an eccentric sleeve, and the rotating connecting portion 22 is an eccentric hole of the eccentric sleeve.

[0106] In some embodiments of the eccentric connector of the present invention, Figures 4 to 7 As shown, the eccentric connecting member 20 is an eccentric bearing box, and the rotating connecting part 22 is the output shaft of the eccentric bearing box.

[0107] In some embodiments of the wire cutting device of the present invention, the wire cutting device comprises a cutting roller and an eccentric roller device of any one of the above embodiments or a combination of embodiments, and the cutting roller is coaxially connected to the rotating connection part 22 .

[0108] In this embodiment, the cutting line can be wound around two cutting rollers arranged in parallel and spaced apart to form a cutting section with a preset width. By adjusting the angle of the eccentric connecting member 20 of the eccentric roller device, the spacing between the two cutting rollers can be continuously adjusted within a certain range, that is, a cutting section with a continuously adjustable width within a certain range is formed to adapt to workpieces of different specifications to be cut.

[0109] In some embodiments of the wire cutting device of the present invention, the wire cutting device further comprises a frame, and the frame forms a support frame 10 .

[0110] A feeding device that can move relative to the eccentric roller device can also be arranged on the frame.

[0111] In some embodiments of the wire cutting device of the present invention, the frame is fixedly connected to the support frame 10 .

[0112] In some embodiments of the wire cutting device of the present invention, the wire cutting device comprises a cutting roller and an eccentric connecting member 20 of any one of the above embodiments or a combination of embodiments, and the cutting roller is coaxially connected to the rotating connecting part 22 .

[0113] In some embodiments of the wire cutting device of the utility model, the wire cutting device further comprises a cutting chamber. The cutting chamber may be provided with a spray pipe, a cutting liquid circulation pipe pump, a drainage pipe, etc. The wire cutting device may be a diamond wire slicer, a diamond wire squarer, etc.

[0114] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An eccentric roller device for a wire cutting device, characterized in that: include: A support frame, the support frame having a first mounting surface, the first mounting surface being provided with a roller shaft hole and M mounting holes annularly distributed around the roller shaft hole; An eccentric connecting member, the eccentric connecting member comprising a cylindrical mounting portion, a rotating connecting portion and a second mounting surface, the cylindrical mounting portion being coaxially disposed in the roller shaft hole, the axis centerline of the cylindrical mounting portion being not colinear with the axis centerline of the rotating connecting portion; the second mounting surface being in contact with the first mounting surface, the second mounting surface being provided with N circular arc holes uniformly distributed around the roller shaft hole in an annular manner, the eccentric connecting member being detachably fixedly connected to the circular arc hole and the mounting hole by a fastener; Wherein, M and N are both integers greater than 2.

2. The eccentric roller device according to claim 1, characterized in that: The eccentric connecting member is an eccentric sleeve, and the rotating connecting portion is an eccentric hole of the eccentric sleeve; or The eccentric connecting member is an eccentric bearing box, and the rotating connecting part is an output shaft of the eccentric bearing box.

3. The eccentric roller device according to claim 1, characterized in that: The central angle of the arc-shaped hole is greater than or equal to 1 / 2 of the central angles corresponding to two adjacent mounting holes; and / or M is greater than or equal to N, and the central angle of the arc-shaped hole is greater than or equal to 180 / N degrees.

4. The eccentric roller device according to claim 1, characterized in that: M is greater than or equal to 4, and N is less than or equal to M / 2.

5. The eccentric roller device according to claim 1, characterized in that: The central angle of the arc-shaped hole is greater than or equal to twice the central angles corresponding to two adjacent mounting holes.

6. The eccentric roller device according to claim 5, characterized in that: The mounting hole is a threaded hole; the fastener includes a pressing block and a bolt, the pressing block is provided with a through hole; the bolt passes through the through hole and the arc-shaped hole in sequence and is threadedly connected to the mounting hole; The pressing block is in an arc shape, and the central angle of the pressing block is greater than or equal to twice the central angle corresponding to two adjacent mounting holes; there are at least two through holes, and the central angle corresponding to two adjacent through holes is an integer multiple of the central angle corresponding to two adjacent mounting holes.

7. The eccentric roller device according to claim 1, characterized in that: The mounting hole is a threaded hole, and the arc-shaped hole is a countersunk hole; the fastener comprises a pressing block and a bolt, the pressing block is provided with a through hole, the bolt passes through the through hole and the countersunk hole in sequence, and is threadedly connected to the mounting hole; or The mounting hole is a threaded hole, and the hole wall of the arc-shaped hole is a conical surface; the fastener includes a tapered sleeve and a bolt, the tapered sleeve is provided with a through hole, and the bolt passes through the through hole and the arc-shaped hole in sequence and is threadedly connected to the mounting hole.

8. An eccentric connector for a wire cutting device, characterized in that: The invention comprises a cylindrical mounting portion, a rotating connecting portion and a second mounting surface, wherein the cylindrical mounting portion is fixedly connected to the second mounting surface, and the axis center line of the cylindrical mounting portion is not colinear with the axis center line of the rotating connecting portion; the second mounting surface is provided with N circular arc holes uniformly distributed around the cylindrical mounting portion; N is an integer greater than or equal to 2; The central angle of the arc-shaped hole is greater than or equal to 180 / N degrees.

9. The eccentric connecting piece according to claim 8, characterized in that: The eccentric connecting member is an eccentric sleeve, and the rotating connecting portion is an eccentric hole of the eccentric sleeve; or The eccentric connecting member is an eccentric bearing box, and the rotating connecting part is an output shaft of the eccentric bearing box.

10. A wire cutting device, characterized in that: include: Cutting rollers; and The eccentric roller device according to any one of claims 1 to 7, wherein the cutting roller is coaxially connected to the rotating connection portion; or According to the eccentric connecting piece according to any one of claims 8 to 9, the cutting roller is coaxially connected to the rotating connecting part.

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