Wire bundle cutting equipment

Abstract

The present invention relates to a wire bundle cutting device, comprising a loading mechanism and a cutting mechanism, wherein the loading mechanism comprises a bearing unit for limiting the position of the wire bundle when being cut, and has a positioning reference, so that when the wire bundle is carried on the bearing unit, the axis of the wire bundle is relatively fixed to the positioning reference to limit the position of the wire bundle relative to the bearing unit in its radial direction; the cutting mechanism comprises a guiding unit and a cutting tool, and the guiding unit can guide at least one of the cutting tool and the bearing unit to move relative to the other along the lateral direction of the positioning reference.

Description

Technical Field

[0001] The invention relates to the technical field of medical consumables production, and in particular to a wire bundle cutting device for cutting spinning wires. Background Art

[0002] The production process of spinning line includes cutting the silk line to obtain fixed-length silk bundle segments. At present, the common or easy problems in this link include: the length consistency of each silk bundle segment obtained after cutting is poor, the length consistency of each silk line segment in the silk bundle segment obtained after cutting is poor, the cross-section of the silk bundle segment is not flat, and the silk bundle cutting efficiency is low. In addition, since the silk lines in the silk bundle are soft in texture, the silk bundle is easy to deform. After cutting, the ends of some silk line segments will protrude from the ends of the silk bundle film, which is easy to contaminate the silk line and it is difficult to ensure the hygiene and cleanliness of the spinning line products. Summary of the invention

[0003] In view of this, it is necessary to provide a wire bundle cutting device, including a loading mechanism and a cutting mechanism, the loading mechanism including a carrying unit for limiting the position of the wire bundle when being cut, and having a positioning reference, so that when the wire bundle is carried on the carrying unit, the axis of the wire bundle is relatively fixed to the positioning reference to limit the position of the wire bundle relative to the carrying unit in its radial direction; the cutting mechanism includes a guiding unit and a cutting tool, the guiding unit can guide at least one of the cutting tool and the carrying unit to move relative to the other along the lateral direction of the positioning reference, that is, in a direction inclined to the positioning reference.

[0004] The wire bundle cutting device provided by the present invention has the following beneficial effects:

[0005] The bearing unit can ensure that the axis and positioning reference of the wire bundle being cut have the same extension direction by limiting the radial freedom of movement of the wire bundle, thus avoiding the bending or shear deformation of the wire bundle as a whole when the cutting tool applies lateral force; the guide unit can make the cutting tool approach the bearing unit along a more precise and certain moving trajectory to cut the wire bundle, eliminating the possibility of the cutting tool being offset or deflected by the reaction force of the wire bundle. The length dimensions of each wire segment in the wire bundle segment finally obtained have better consistency, and the cut section of the wire bundle segment is also smoother. If the wire bundle cutting equipment continuously cuts a large number of wire bundles, the length dimensions of each wire bundle segment finally obtained will have better consistency; the guide mechanism can pre-set the movement trajectory of the cutting tool so that the cutting tool can cut in an orderly manner and exit the bearing unit, which helps to improve the efficiency of wire bundle cutting.

[0006] In one embodiment, the bearing unit is provided with an inner cylindrical surface for adapting to the outer peripheral wall of the wire bundle, and the positioning reference is the axis of the inner cylindrical surface.

[0007] With such arrangement, when the outer peripheral wall of the wire bundle contacts and fits with the inner cylindrical surface of the bearing unit, the bearing unit can further ensure that the axis of the wire bundle and the positioning reference have the same extension direction, which is more effective in limiting the radial movement of the wire bundle.

[0008] In one embodiment, the loading mechanism further comprises a clamping unit rotatable relative to the carrying unit, and the center of rotation of the clamping unit relative to the carrying unit is parallel to the positioning reference.

[0009] With such arrangement, after the wire bundle is locked and fixed by the bearing unit and the clamping unit, the restraining force on the wire bundle is more evenly distributed in the axial direction, eliminating the problem of insufficient radial limitation at a certain position of the wire bundle in the axial direction.

[0010] In one embodiment, the clamping unit includes a plurality of clamping assemblies, which are arranged along the extension direction of the positioning reference and can rotate relative to the bearing unit; the guide unit has a guide track, which passes between at least two adjacent clamping assemblies.

[0011] With such arrangement, the cutting tool can, under the guidance of the guide unit, pass along the guide track between two adjacent clamping assemblies to complete the cutting action. The distance between the cut part of the wire bundle and the clamping assembly is closer. Under the joint restraint of the two adjacent clamping assemblies, the cut part of the wire bundle is not easy to deform, which can avoid the beveling effect of the blade surface of the cutting tool on the wire. The flatness of the cross-section of the wire bundle obtained after cutting and the consistency of the length dimensions of each wire segment therein can be guaranteed.

[0012] In one embodiment, the clamping unit is provided with an inner cylindrical surface for adapting to the outer peripheral wall of the wire bundle, and the clamping unit can rotate relative to the bearing unit to drive the axis of the inner cylindrical surface to coincide with the positioning reference.

[0013] With such arrangement, the clamping unit can be rotated relative to the bearing unit to close with the bearing unit and form a clamping space for accommodating the wire bundle. The clamping unit and the bearing unit can achieve a double limiting constraint effect on the wire bundle through their respective inner cylindrical surfaces.

[0014] In one embodiment, the cutting tool includes a rotary cutter and a rotary cutting drive source connected to and capable of driving the rotary cutter to rotate, and the movement trajectories of the cutting surface of the rotary cutter and the rotary cutting blade surface are parallel to the same plane.

[0015] With such an arrangement, the rotary cutter has less resistance when cutting the wire bundle, takes less time to cut, has significantly improved cutting efficiency, and the wire bundle segment obtained after cutting has a smoother and cleaner cutting cross-section.

[0016] In one embodiment, the wire bundle cutting device further comprises a coating dragging mechanism, which can connect and drive at least one of the wire and the wire bundle coating to move relative to the other along the extension direction of the positioning reference, so that the wire and the wire bundle coating are relatively offset axially.

[0017] In this arrangement, the coating dragging mechanism can cause the wire segment and the wire bundle coating to produce relative movement in the axial direction of the positioning reference, thereby facilitating the acquisition of a wire bundle segment with the following structure: that is, the coating port of the wire bundle segment after cutting protrudes from the end of the wire segment, and the wire segment is not higher than the coating port in its length direction.

[0018] In one embodiment, the wire bundle cutting device also includes a tool migration mechanism, which can move relative to the carrying unit in the extension direction of the positioning reference. The cutting mechanism is movably installed on the tool migration mechanism, and the cutting tool can follow the movement of the tool migration mechanism to change the position of its cutting surface.

[0019] With such arrangement, the cutting tool can cut the wire bundle one by one under the drive of the tool migration mechanism to obtain wire bundle segments one by one. The tool migration mechanism and the coating dragging mechanism cooperate with each other to perform correction cutting on each wire bundle segment. Correction cutting is to perform end cutting on the wire segment in each wire bundle segment. After the end cutting is performed, the wire segment in the wire bundle segment will not protrude from its coating port, thereby allowing the coating port to protrude from the end of the wire segment in the axial direction of the wire bundle segment. After the cutting tool completes the first round of cutting, the obtained wire bundle segments have consistent wire segment length and coating length. Then, the coating dragging mechanism is used to make one end of the wire segment protrude from the coating port, and the tool migration mechanism continues to drive the cutting tool to perform a second round of cutting on the wire bundle to cut off the part of the wire segment protruding from the coating port. After the second round of cutting is completed, the obtained wire segments have achieved a coating length greater than their wire segment length.

[0020] In one embodiment, there are multiple cutting tools, and the multiple cutting tools are arranged at intervals on the side of the carrying unit along the extension direction of the positioning reference, and the cutting surfaces of any two cutting tools are parallel to each other.

[0021] With such an arrangement, the tool migration mechanism can be omitted, and the multiple cutting tools can be rearranged according to the cutting positions required for the first round of cutting and the cutting positions required for the second round of cutting.

[0022] In one embodiment, the wire bundle cutting device further comprises:

[0023] A position calibration unit, used for correcting the position and shape of the wire bundle before cutting the wire bundle, the position calibration unit having a correction reference, so that when the wire bundle is carried on the position calibration unit, the axis of the wire bundle is fixed relative to the correction reference to define the position of the wire bundle relative to the position calibration unit in its radial direction;

[0024] A plurality of alignment marking portions are arranged at intervals along the extending direction of the correction reference.

[0025] In this way, the alignment mark can play a role in assisting in confirming the position and shape of the wire bundle before cutting. After placing a wire bundle at random on the position calibration unit, the relative position of each coating in the extension direction of the correction reference can be determined first according to the position of each alignment mark in the extension direction of the correction reference. If each alignment mark corresponds to the port of each coating, it means that the position of the coating in the axial direction of the wire bundle is correct. At this time, the axial position corresponding to the coating port is the position where the cutting tool cuts the wire bundle, and the wire bundle can be directly transferred to the carrier unit for cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial structural schematic diagram of a wire bundle cutting device according to Embodiment 1 of the present invention;

[0027] Figure 2 It is a partial structural schematic diagram of a wire bundle cutting device according to a second embodiment of the present invention;

[0028] Figure 3 The figure is a schematic diagram of the position change process of the wire bundle and the cutting tool during the cutting process according to an embodiment.

[0029] Description of reference numerals:

[0030] 100, wire bundle cutting equipment; 200, wire bundle; 210, wire thread; 220, coating; 10, loading mechanism; 11, carrying unit; 12, clamping unit; 121, clamping assembly; 20, cutting mechanism; 21, guiding unit; 22, cutting tool; 221, rotary cutter; 222, rotary cutting drive source; 31, position calibration unit; 321, alignment mark part. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0033] The present invention provides a wire bundle cutting device 100, which is used for axially segmenting a spinning wire 210 wire bundle 200 coated with a wire bundle 200 film 220, and obtaining shorter wire bundle segments after cutting. Figure 1 The wire bundle cutting device 100 includes a cutting mechanism 20 and a loading mechanism 10 for carrying the cutting mechanism 20 and the wire bundle 200 .

[0034] The loading mechanism 10 includes a bearing unit 11 for limiting the position and shape of the wire bundle 200, and a clamping unit 12 for cooperating with the bearing unit 11 to jointly lock and fix the wire bundle 200. The bearing unit 11 has a positioning reference, and its function is that when the wire bundle 200 is carried on the bearing unit 11, the axis of the wire bundle 200 and the positioning reference are relatively fixed to limit the position of the wire bundle 200 relative to the bearing unit 11 in its radial direction. If the wire bundle 200 placed on the bearing unit 11 is approximately regarded as a cylinder, after the radial movement freedom of the wire bundle 200 is limited by the bearing unit 11, the axial direction of the wire bundle 200 is consistent with the extension direction of the positioning reference. Preferably, when the wire bundle 200 is placed on the bearing unit 11, the positioning reference coincides with the axis of the wire bundle 200.

[0035] exist Figure 1 In the wire bundle cutting device 100 shown, the clamping unit 12 can rotate relative to the carrying unit 11, and the center line of the clamping unit 12 rotating relative to the carrying unit 11 is parallel to the extension direction of the positioning reference. The clamping unit 12 is moved closer to the carrying unit 11 by rotating, and the two are closed together until a clamping space matching the radial size of the wire bundle 200 is formed between the clamping unit 12 and the carrying unit 11.

[0036] Optionally, the bearing unit 11 is provided with an inner cylindrical surface for contacting and adapting to the outer wall of the wire bundle 200, and the axis corresponding to the inner cylindrical surface is the above-mentioned positioning reference; similarly, the clamping unit 12 is also provided with an inner cylindrical surface for contacting and adapting to the outer wall of the wire bundle 200, and the clamping unit 12 can rotate relative to the bearing unit 11 to drive the axis corresponding to its inner cylindrical surface to coincide with the positioning reference, thereby forming a clamping space.

[0037] In other embodiments, the positioning reference may also be a ridge formed on the inner cylindrical surface of the carrying unit 11, the extension direction of the ridge is parallel to the axis of the wire bundle 200 after being placed on the carrying unit 11, and the inner wall surfaces on both sides of the ridge can respectively apply pressure directed to the axis of the wire bundle 200 to the outer peripheral wall of the wire bundle 200. Correspondingly, a ridge parallel to the positioning reference may also be provided on the inner cylindrical surface of the clamping unit 12.

[0038] In addition, in some other embodiments, the clamping unit 12 can be omitted, or other forms of locking elements can be used to replace the clamping unit 12. For example, a pressure cover assembly similar to a bearing seat can be used to fix the wire bundle 200. At this time, the load-bearing unit 11 can serve as the lower cover of the pressure cover assembly, and the upper cover and the lower cover are matched together to form a through hole for the wire bundle 200 to pass through.

[0039] The cutting mechanism 20 includes a cutting tool 22 and a guide unit 21, wherein the cutting tool 22 includes a rotary cutter 221 and a rotary cutting drive source 222 connected to and capable of driving the rotary cutter 221 to rotate around a preset rotation center. After the rotary cutting drive source 222 is started, the motion trajectory of the blade surface of the rotary cutter 221 is in a circular ring shape. Preferably, the rotary cutter 221 is in the shape of a flat plate, and the blade surface of the rotary cutter 221 is located at the circumferential edge of the rotary cutter 221, and the plane where the blade surface edge is located is parallel to the motion trajectory of the blade surface of the rotary cutter 221. For the convenience of description, the plane where the blade surface edge of the rotary cutter 221 is located is referred to as the cutting surface of the rotary cutter 221. The guide unit 21 is used to define a guide trajectory for the cutting tool 22 and the carrier unit 11 to approach each other so as to cut the wire bundle 200 in sections, and the guide trajectory is the trajectory of the blade surface of the cutting tool 22 moving relatively close to or away from the carrier unit 11. The guide track and the positioning reference intersect in the same plane or in different planes, so that the guide unit 21 can guide either or both of the cutting tool 22 and the carrying unit 11 to move along the guide track so that the cutting tool 22 and the carrying unit 11 are relatively close to or far away from each other in the lateral direction of the positioning reference.

[0040] Optionally, the guide track and the positioning reference are perpendicular to each other, the cutting tool 22 can move radially along the wire bundle 200 close to the carrying unit 11 / wire bundle 200, and the cutting surface of the rotary cutter 221 is perpendicular to the positioning reference. The rotary cutter 221 is circular, and the center of rotation of the rotary cutter 221 driven by the rotary cutter driving source 222 is the center of the circle of the rotary cutter 221.

[0041] The wire bundle 200 involved in the present invention has a specific structure as follows: a plurality of wires 210 are clustered and wrapped in a multi-segment wire bundle 200 coating 220, the wire bundle 200 coating 220 is in the shape of a tube, the multi-segment wire bundle 200 coating 220 is arranged in sequence along the axial direction, and the wires 210 pass through the through holes of the multi-segment wire bundle 200 coating 220. The annular area sandwiched between the coatings 220 of two adjacent wire bundles 200 is the part where the rotary cutter 221 rotates and cuts. That is, when the wire bundle 200 is locked and fixed by the bearing unit 11 and the clamping unit 12, the cut surface moves radially along the radial plane where the annular area between the coatings 220 of the two adjacent wire bundles 200 is located, until the blade of the rotary cutter 221 passes through one side of the coatings 220 of the wire bundles 200 at the two adjacent ends and reaches the other side.

[0042] In order to better determine the position where the wire bundle 200 is cut by the rotary cutter 221, in one embodiment, the clamping unit 12 includes a plurality of clamping assemblies 121 arranged along the extension direction of the positioning reference, and each clamping assembly 121 can rotate relative to the bearing unit 11 around the same center parallel to the positioning reference. The above-mentioned guide track, that is, the track along which the blade surface of the cutting tool 22 moves relatively close to or away from the bearing unit 11, passes between at least two adjacent clamping assemblies 121 and extends from one side to the other side of the two clamping assemblies 121. Therefore, the position where the wire bundle 200 is cut can be determined by the size of the clamping assembly 121 in the extension direction of the positioning reference and the gap between two adjacent clamping assemblies 121. As long as the wire bundle 200 is fixed by the bearing unit 11 and the clamping unit 12, and then the guide unit 21 and the cutting tool 22 are started, the wire bundle cutting device 100 can automatically determine the segmented cutting position of the wire bundle 200 and the segment length after cutting without manual positioning or determination. In this embodiment, the rotary cutter 221 only rotates around its own center of circle and performs reciprocating translational motion along the guide track to approach or move away from the carrying unit 11 .

[0043] In this embodiment, the cutting tool 22 is integrally mounted on the guide unit 21, the carrying unit 11 and the clamping unit 12 are fixedly arranged, and the guide unit 21 drives the cutting tool 22 to actively approach the carrying unit 11 for cutting. In other embodiments, the guide unit 21 can also drive the carrying unit 11 and the clamping unit 12 to actively move close to the cutting tool 22, or simultaneously drive the carrying unit 11 and the cutting tool 22 to move toward each other for cutting.

[0044] It should be noted that selecting the rotary cutter 221 as the cutting element is not the only way to achieve the purpose of the present invention. In other embodiments, the cutting element may be of other types depending on the situation, such as a saw blade cutting knife that can reciprocate and translate.

[0045] In some cases, it is necessary to obtain such a spinning line 210 product: for the wire bundle segment after cutting and segmenting, the end of the wire 210 is lower than the port of the wire bundle 200 coating 220 outside it, that is to say: the wire bundle 200 coating 220 should be higher than the end of the wire 210 by a certain axial length along the axial arm of the wire bundle segment. To meet this demand, the wire bundle cutting device 100 also includes a coating dragging mechanism, which can connect and drive at least one of the wire 210 and the wire bundle 200 coating 220 to move relative to the other along the extension direction of the positioning reference until the size of the end of the wire bundle 200 coating 220 higher than the end of the wire 210 reaches a predetermined size requirement. Therefore, the coating dragging mechanism at least includes a first acting component for resisting the end of the wire cluster and a second acting component for connecting the side wall of the coating 220. The two components can only cause the wire 210 and the coating 220 to have an axial relative displacement when the wire cluster and the coating 220 are connected at the same time. Specifically, there are several ways to achieve the above purpose.

[0046] In one embodiment, the wire bundle cutting device 100 further includes a tool migration mechanism that can move relative to the carrier unit 11 in the extension direction of the positioning reference, and the cutting mechanism 20 is movably mounted on the tool migration mechanism and can synchronously follow the tool migration mechanism to move relative to the carrier unit 11 in the positioning reference direction, thereby changing the position of the cut surface of the cutting tool 22 in the extension direction of the positioning reference. Figure 3 The following describes in detail the coordinated cooperation process of the tool migration mechanism and the film coating dragging mechanism by taking the example of cutting the wire bundle 200 into three wire bundle segments of equal length.

[0047] Figure 3 The middle triangle represents the blade of the rotary cutter 221, and the numbers above the triangle represent the order of change in the relative position relationship between the rotary cutter 221 and the wire bundle 200 during the movement of the rotary cutter 221 following the movement of the tool transfer mechanism. A, B, and C respectively represent the positions of the cut surface when the wire bundle 200 is cut by the rotary cutter 221. First, the rotary cutter 221 is at the position of number 1 and cuts the wire bundle 200 at A. Then, the rotary cutter 221 moves along the left side of the figure following the tool transfer mechanism and reaches the position of number 2, and then cuts the wire bundle 200 at B. Afterwards, the coating dragging mechanism applies force to the wire 210 and the coating 220 respectively, causing the wire 210 and the coating 220 to produce axial relative displacement, and the end of the wire 210 moves from Figure 3The left end of the coating 220 shown in the figure protrudes a preset distance, and then the rotary cutter 221 continues to follow the tool migration mechanism to move to the left in the figure to reach the position of number 3, and then cuts the wire bundle 200 at C. Then, the rotary cutter 221 follows the tool migration mechanism to move to the right in the figure and reaches the positions of number 4 and number 5, and then cuts the wire bundle 200 again at position B and position A respectively. Finally, the coating dragging mechanism applies force to the wire 210 and the coating 220 again, and the wire 210 and the coating 220 continue to produce axial relative displacement, and at the same time, the discarded part of the wire 210 ( Figure 3 The portion of the wire 210 with shadows in the figure) is pushed out of the coating 220 until the ends of the wire 210 in the wire bundle segment do not protrude from the end of the coating 220 of the wire bundle segment.

[0048] In other embodiments, a plurality of cutting knives 22 may be provided for the wire bundle cutting device 100, and the plurality of cutting knives 22 may be arranged at intervals on the side of the carrying unit 11 along the extension direction of the positioning reference, and the cut surfaces of any two cutting knives 22 are parallel to each other and perpendicular to the extension direction of the positioning reference. Figure 3 The positions corresponding to the numbers 1 to 5 shown in the figure can also be omitted on this basis, and the two groups of cutting tools 22 corresponding to the numbers 1 to 2, or the numbers 4 to 5 can be omitted. This can reduce the usage of the cutting tools 22. Only three groups of cutting tools 22 are needed to cut three wire bundles. The three groups of tools can be set on the same side or different sides of the carrying unit 11.

[0049] In some embodiments, the wire bundle cutting device 100 further includes a position correction mechanism, which is used to adjust the shape and position of the wire bundle 200 to be cut before placing the wire bundle 200 on the carrying unit 11. Figure 2 , Figure 2 The schematic diagram of the three-dimensional structure of the position correction mechanism is shown. The position correction mechanism includes a position calibration unit 31 and a plurality of alignment mark parts 321. The former has a correction reference. Its function is that when the wire bundle 200 is carried on the position calibration unit 31, the correction reference is relatively fixed with the axis of the wire bundle 200 to limit the position of the wire bundle 200 relative to the position calibration unit 31 in its radial direction. The wire bundle 200 placed on the position calibration unit 31 has an axis direction consistent with the extension direction of the correction reference. Preferably, the position calibration unit 31 in this embodiment is similar to the bearing unit 11, and has an inner cylindrical surface for adapting to the outer peripheral wall of the wire bundle 200. The correction reference is the axis of the inner cylindrical surface. The plurality of alignment mark parts 321 are arranged at intervals along the extension direction of the correction reference. Each alignment mark part 321 can correspond to a port of the coating 220 in the extension direction of the correction reference. As mentioned above, the annular area sandwiched between the ports of two adjacent coatings 220 indicates the part where the cutting tool 22 cuts the wire bundle 200.

[0050] The plurality of alignment mark portions 321 are equidistantly spaced and relatively fixedly arranged. After the wire bundle 200 is placed on the position correction mechanism, the axial position of each coating 220 sleeved with the wire 210 cluster can be adjusted by adjusting the position of each coating 220 in the correction reference extension direction. The alignment mark portion 321 is equivalent to providing an auxiliary ruler. When each alignment mark portion 321 corresponds to a coating 220 port, it indicates that the position adjustment of the coating 220 on the wire bundle 200 is completed, and the wire bundle 200 can be directly transferred to the carrying unit 11. At this time, the annular area between two adjacent coating 220 ports can be used as the area through which the cutting surface is cut.

[0051] In this embodiment, the number of alignment mark portions 321 is four groups and they are evenly spaced. The distance between two adjacent alignment mark portions 321 is the length dimension of the wire bundle segment after cutting. In the extension direction of the correction reference, the No. 1 and No. 4 alignment mark portions 321 can not only determine the position of the port of the coating 220, but also determine the relative position of the end of the wire bundle 200 and the No. 1 or No. 4 alignment mark portion 321.

[0052] When one of the following situations occurs: 1) the length of one end of the wire bundle 200 protruding from the No. 1 alignment mark 321 is equal to the length of the other end protruding from the No. 4 alignment mark 321; 2) one end of the wire bundle 200 is flush with the No. 1 alignment mark 321, and the other end of the wire bundle 200 is flush with the No. 4 alignment mark 321; 3) the length of the end of the wire bundle 200 protruding from the No. 1 alignment mark 321 or the No. 4 alignment mark 321 reaches a preset protruding length, the axial position of the wire bundle 200 on the position correction mechanism is correct.

[0053] In other embodiments, the number of alignment mark portions 321 is not necessarily limited to four, and the specific number depends on the number of required wire bundle segments. When the number of required wire bundle segments is N, the number of alignment mark portions 321 is (N+1). In addition, the alignment mark portions 321 do not have to be arranged at equal intervals, and can also be arranged at unequal intervals, which can meet the following usage scenarios: using the wire bundle cutting device 100 to cut a wire bundle 200 into multiple wire bundle segments of different lengths.

[0054] Similarly, the loading mechanism 10 also includes a first auxiliary positioning portion and a second auxiliary positioning portion fixedly arranged relative to the carrying unit 11. The two are arranged relatively to each other in the extension direction of the positioning reference, and the distance between the two is consistent with the distance between the above-mentioned No. 1 alignment mark portion 321 and the No. 4 alignment mark portion 321. If one of the following situations occurs: 1) the length of one end of the wire bundle 200 protruding from the first auxiliary positioning portion is equal to the length of the other end protruding from the second auxiliary positioning portion, and is equal to the length of the end of the wire bundle 200 protruding from the No. 1 / No. 4 alignment mark portion 321; 2) the two ends of the wire bundle 200 are flush with the first auxiliary positioning portion and the second auxiliary positioning portion, respectively; 3) the length of one end of the wire bundle 200 protruding from the first auxiliary positioning portion is equal to the length of the same end of the wire bundle 200 protruding from the No. 1 alignment mark portion 321, or the length of the other end of the wire bundle 200 protruding from the second auxiliary positioning portion is equal to the length of the same end of the wire bundle 200 protruding from the No. 4 alignment mark portion 321, the axial position of the wire bundle 200 on the carrying unit 11 is correct, and the cutting mechanism 20 can directly cut the wire bundle 200 in sections without adjusting the axial placement position of the wire bundle 200.

[0055] It is worth noting that setting two auxiliary positioning parts is only a preferred embodiment, and only one auxiliary positioning part can be set when necessary. When the wire bundle 200 completes the position and shape determination in the position correction mechanism, that is, the multiple alignment mark parts 321 correspond to the multiple coating film 220 ports respectively, and the length of the first end of the wire bundle 200 protruding from the first alignment mark part 321 / the length of the second end of the wire bundle 200 protruding from the fourth alignment mark part 321 reaches the preset protruding length, mark the axial position of the wire bundle 200 corresponding to the first alignment mark part 321, or mark the axial position of the wire bundle 200 corresponding to the fourth alignment mark part 321, and then make the auxiliary positioning part correspond to the marked position, so that the axial position determination of the wire bundle 200 in the loading mechanism 10 can be completed.

[0056] Furthermore, the shapes and sizes of the multiple clamping components 121 are consistent, and the size of each clamping component 121 in the extension direction of the positioning reference is equal to the arrangement distance between any two adjacent alignment mark portions 321. This means that when the axial position of the wire bundle 200 on the bearing unit 11 is correct, the gap between any two adjacent clamping components 121 just corresponds to the gap between two adjacent coating 220 ports, and at this time, the cutting surface of the rotary cutter 221 also just passes between the two adjacent clamping components 121.

[0057] It should be noted that the guide track does not pass between any two adjacent clamping assemblies 121. If a tool migration mechanism is used, the number of cutting tools 22 can be reduced, and the guide track can also move synchronously with the movement of the tool migration mechanism. For example, when the tool migration mechanism is in the first parking position, the guide track and the cut surface of the cutting tool 22 pass between the first and second clamping assemblies 121, and then the tool migration mechanism drives the guide unit 21 and the cutting mechanism 20 to move a distance along the positioning reference to reach the second parking position, at which time the guide track and the cut surface of the cutting tool 22 pass between the second and third clamping assemblies 121.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A wire bundle cutting device, comprising a loading mechanism (10) and a cutting mechanism (20), characterized in that: The loading mechanism (10) comprises a bearing unit (11) for defining the position of the wire bundle (200), and has a positioning reference, so that when the wire bundle (200) is supported on the bearing unit (11), the axis of the wire bundle (200) is relatively fixed to the positioning reference to define the position of the wire bundle (200) relative to the bearing unit (11) in its radial direction; The cutting mechanism (20) comprises a guide unit (21) and a cutting tool (22), wherein the guide unit (21) is capable of guiding at least one of the cutting tool (22) and the carrying unit (11) to move relative to the other along the lateral direction of the positioning reference; The wire bundle cutting device further comprises a coating dragging mechanism, wherein the coating dragging mechanism is capable of connecting and driving at least one of the wire (210) and the coating (220) of the wire bundle (200) to move relative to the other along the extension direction of the positioning reference, so that the wire (210) and the coating (220) of the wire bundle (200) are relatively offset along the axial direction; The coating dragging mechanism comprises at least a first acting component for resisting the end of the thread cluster and a second acting component for connecting the side wall of the coating (220).

2. The wire bundle cutting device according to claim 1, characterized in that: The bearing unit (11) is provided with an inner cylindrical surface for adapting to the outer peripheral wall of the wire bundle (200), and the positioning reference is the axis of the inner cylindrical surface.

3. The wire bundle cutting device according to claim 1 or 2, characterized in that: The loading mechanism (10) further comprises a clamping unit (12) which is rotatable relative to the carrying unit (11), and the center of rotation of the clamping unit (12) relative to the carrying unit (11) is parallel to the positioning reference.

4. The wire bundle cutting device according to claim 3, characterized in that: The clamping unit (12) comprises a plurality of clamping assemblies (121), wherein the clamping assemblies (121) are arranged along the extension direction of the positioning reference and are capable of rotating relative to the bearing unit (11).

5. The wire bundle cutting device according to claim 3, characterized in that: The clamping unit (12) is provided with an inner cylindrical surface for adapting to the outer peripheral wall of the wire bundle (200), and the clamping unit (12) can rotate relative to the bearing unit (11) to drive the axis of the inner cylindrical surface to coincide with the positioning reference.

6. The wire bundle cutting device according to claim 1, characterized in that: The cutting tool (22) comprises a rotary cutter (221) and a rotary cutter driving source (222) connected to and capable of driving the rotary cutter (221) to rotate, and the cutting surface of the rotary cutter (221) and the movement trajectory of the blade surface of the rotary cutter (221) are parallel to the same plane.

7. The wire bundle cutting device according to claim 1, characterized in that: The wire bundle cutting device also includes a tool migration mechanism, which can move relative to the bearing unit (11) in the extension direction of the positioning reference, the cutting mechanism (20) is movably mounted on the tool migration mechanism, and the cutting tool (22) can follow the movement of the tool migration mechanism to change the position of its cutting surface.

8. The wire bundle cutting device according to claim 1, characterized in that: The number of the cutting tools (22) is multiple, and the multiple cutting tools (22) are arranged at intervals on the side of the carrying unit (11) along the extension direction of the positioning reference, and the cutting surfaces of any two cutting tools (22) are parallel to each other.

9. The wire bundle cutting device according to claim 1, characterized in that: The wire bundle cutting device also includes: A position calibration unit (31) having a correction reference, so that when the wire bundle (200) is carried on the position calibration unit (31), the axis of the wire bundle (200) is relatively fixed to the correction reference to define the position of the wire bundle (200) relative to the position calibration unit (31) in its radial direction; and A plurality of alignment marking portions (321) are arranged at intervals along the extending direction of the correction reference.

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