CN112722984A - Automatic wire cutting device - Google Patents
Automatic wire cutting device Download PDFInfo
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- CN112722984A CN112722984A CN202011641039.3A CN202011641039A CN112722984A CN 112722984 A CN112722984 A CN 112722984A CN 202011641039 A CN202011641039 A CN 202011641039A CN 112722984 A CN112722984 A CN 112722984A
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- wire
- feeding mechanism
- wire cutting
- cutting unit
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- 238000005520 cutting process Methods 0.000 title claims abstract description 122
- 230000007246 mechanism Effects 0.000 claims abstract description 106
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 33
- 238000009490 roller compaction Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
- B65H49/20—Package-supporting devices
- B65H49/30—Swifts or skein holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/16—Unwinding or uncoiling
- B21C47/18—Unwinding or uncoiling from reels or drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F23/00—Feeding wire in wire-working machines or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
- B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
- B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/36—Wires
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
The invention discloses an automatic wire cutting device, which comprises a wire supply unit, a wire cutting unit and a wire cutting unit, wherein the wire supply unit comprises a feeding mechanism for driving a wire to advance; the wire cutting unit is used for cutting the wire rod conveyed by the feeding mechanism, and the output end of the feeding mechanism and the wire inlet end of the wire cutting unit are positioned on a first plane vertical to the ground; a detection unit including a rotation member and a detector; the rotating piece is arranged between the feeding mechanism and the wire cutting unit, is provided with a through hole for the wire to pass through, and is configured to be driven by the wire to rotate on a second plane vertical to the first plane and the ground; the detector is used for detecting the rotation angle of the rotating part relative to the initial position of the rotating part and outputting a detection result; and a control unit which judges whether the length of the wire between the feeding mechanism and the wire cutting unit exceeds a set length according to the detection result and controls the feeding mechanism to decelerate when the result is yes. The device can continuously send the line and can ensure that the wire rod on the wire loading roll is not easy to scatter, the production efficiency is high, and the product percent of pass is high.
Description
Technical Field
The invention relates to the technical field of wire rod prices, in particular to an automatic wire cutting device.
Background
The existing wire cutting device comprises a wire carrying coil and a wire cutting unit, wherein the wire carrying coil is driven by manpower or a motor to rotate so as to convey wires to the wire cutting unit, the wire cutting unit can stop for several seconds or dozens of seconds during wire cutting, the wire carrying coil can continuously convey the wires, the wires on the wire carrying coil can be scattered for a long time, the wires are easy to clamp, and the working efficiency is influenced; the wire rod between the wire loading roll and the wire cutting unit is in a loose state, and the wire feeding wheel of the wire cutting unit is easy to slip when feeding the wire, so that the wire rod cut by the wire cutting unit is different in length and does not accord with the detection standard. If the wire loading roll stops rotating when the wire cutting unit cuts the wire, the speed of conveying the wire rod after the wire loading roll is restarted can be slightly less than the speed of conveying the wire rod by the wire feeding wheel of the wire cutting unit, so that the wire feeding wheel of the wire cutting unit slips, the wire rods cut by the wire cutting unit are different in length, and the wire rods do not accord with the detection standard. Therefore, the present invention is directed to a wire cutting device.
Disclosure of Invention
The invention aims to overcome the defects or problems in the background art and provide an automatic wire cutting device which can continuously feed wires and ensure that the wires on a wire-loading roll are not easy to scatter, the production efficiency is high and the product qualification rate is high.
In order to achieve the purpose, the invention adopts the following technical scheme:
according to the first technical scheme, the automatic wire cutting device comprises a wire supply unit, a wire feeding unit and a wire cutting unit, wherein the wire supply unit is used for winding wires from a wire loading reel and comprises a feeding mechanism used for driving the wires to advance; the wire cutting unit is used for cutting the wire rod conveyed by the feeding mechanism, and the output end of the feeding mechanism and the wire inlet end of the wire cutting unit are positioned on a first plane vertical to the ground; a detection unit including a rotation member and a detector; the rotating part is arranged between the feeding mechanism and the wire cutting unit, is provided with a through hole for the wire to pass through, and is configured to be driven by the wire to rotate on a second plane vertical to the first plane and the ground; the detector is used for detecting the rotation angle of the rotating part relative to the initial position of the rotating part and outputting a detection result; the control unit judges whether the length of the wire rod between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit exceeds a set length according to the detection result, and controls the feeding mechanism to decelerate if the result is yes; the initial position of the rotating part is the position where the rotating part is located when the sum of the length of the wire rod between the output end of the feeding mechanism and the through hole and the length of the wire rod between the through hole and the wire inlet end of the wire cutting unit is shortest.
Based on the technical scheme I, the device is further provided with a technical scheme II, and in the technical scheme II, the rotating piece rotates around a first axis parallel to the first plane.
Based on the second technical scheme, the wire feeding device is further provided with a third technical scheme, wherein in the third technical scheme, the feeding mechanism is used for driving the wire to advance along a first direction, and the first direction is inclined relative to the horizontal plane.
Based on the third technical scheme, the device is also provided with a fourth technical scheme, wherein in the fourth technical scheme, the included angle of the first direction relative to the horizontal plane is 20-70 degrees; the through hole is provided with an abutting end which is used for abutting the wire rod when the wire rod is loosened between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit; when the rotating piece is located at the initial position, the abutting end is higher than a connecting line of the output end of the feeding mechanism and the wire inlet end of the wire cutting unit.
Based on the fourth technical scheme, a fifth technical scheme is further provided, wherein in the fifth technical scheme, the wire loading coil is lower than the input end of the feeding mechanism, and the wire inlet end of the wire cutting unit is higher than the output end of the feeding mechanism; the through hole is further provided with a supporting end opposite to the abutting end, when the rotating piece is located at the initial position, the supporting end supports the wire rod, and the supporting end is higher than the output end of the feeding mechanism and lower than the wire inlet end of the wire cutting unit, so that the wire rod can be smoothly transited between the wire loading coil and the wire inlet end of the wire cutting unit.
Based on the fifth technical scheme, the device is further provided with a sixth technical scheme, wherein in the sixth technical scheme, the through hole extends along the radial direction of the rotating part and is in a runway shape; the first axis is lower than the input end of the feeding mechanism, the abutting end is located at one end, far away from the first axis, of the through hole, and the supporting end is located at one end, close to the first axis, of the through hole.
Based on technical scheme two, still be equipped with technical scheme seven, in technical scheme seven, feed mechanism includes pinch roller, lower pinch roller and driving piece, the line of going up pinch roller axis and pinch roller axis down inclines for the plumb line, go up pinch roller and pinch roller compaction wire rod down, thereby go up pinch roller or pinch roller down and receive the driving piece drive to drive the wire rod and follow the first direction and advance with production frictional force.
Based on technical scheme seven, still be equipped with technical scheme eight, in technical scheme eight, the confession line unit still includes first locating element and the second locating element of locating feed mechanism upper reaches and low reaches separately, first locating element is equipped with first locating hole, the second locating element is equipped with the second locating hole, the line of first locating hole and second locating hole and the interior common tangent line coincidence of last pinch roller and lower pinch roller.
Based on technical scheme seven, still be equipped with technical scheme nine, in technical scheme nine, the output of driving piece is equipped with first gear, the second gear that passes through the conveyer belt with first gear and is connected, the third gear of being connected with the second gear coaxial and the fourth gear with third gear meshing, and wherein first gear is the action wheel, and the second gear is from the driving wheel, go up pinch roller and fourth gear synchronous revolution.
Based on the third technical scheme, a tenth technical scheme is further provided, wherein in the tenth technical scheme, an included angle of the first direction relative to the horizontal plane is 110-160 degrees; the through hole is provided with an abutting end which is used for abutting the wire rod when the wire rod is loosened between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit; when the rotating piece is positioned at the initial position, the abutting end is lower than the connecting line of the output end of the feeding mechanism and the wire inlet end of the wire cutting unit
As can be seen from the above description of the present invention, the present invention has the following advantages over the prior art:
1. in the first technical scheme, the wire rod sequentially passes through the feeding mechanism and the through hole of the rotating part and then reaches the wire cutting unit, when the length of the wire rod between the output end of the feeding mechanism and the through hole and the sum of the lengths of the wire rod between the through hole and the wire cutting unit are the shortest, the wire rod is in a tensioning state, the rotating part is positioned at an initial position, the whole device normally operates, when the wire rod between the feeding mechanism and the wire cutting unit is too long, the wire rod can act on the through hole of the rotating part so as to drive the rotating part to rotate, whether the length of the wire rod between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit exceeds a set length can be judged by detecting the rotating angle of the rotating part relative to the initial position, and as a result, the feeding mechanism is controlled to decelerate, so that the length of the wire rod between the output, therefore, the error accumulated in the wire cutting process is eliminated, the wire with the same length is cut by the wire cutting unit, and the working efficiency is improved; in addition, when the feeding mechanism decelerates, the speed of the feeding mechanism for conveying the wire is still higher than the speed of the wire supplied by the wire loading coil, so that the wire on the wire loading coil is prevented from being jammed.
2. In the second technical scheme, the rotating part rotates around the axis parallel to the first plane, namely, the rotating shaft of the rotating part is located on the side of the first plane, the wire between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit becomes long relative to the tensioning state, and the rotating part is more easily driven by the wire to rotate towards one side of the rotating shaft of the rotating part, so that the rotating part is driven to rotate when the wire between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit becomes long relative to the tensioning state.
3. In the third technical scheme, the feeding mechanism is used for driving the wire rod to be output along a first direction, the first direction is inclined relative to a horizontal plane, namely the wire rod conveyed by the feeding mechanism inclines upwards or downwards, the wire rod correspondingly moves upwards or downwards when passing through a through hole after being output from the output end of the feeding mechanism, when the wire rod between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit becomes longer relative to the tensioning state of the wire rod, the direction of the force applied to the rotating part by the wire rod is correspondingly determined, the threshold value of the rotating angle is conveniently set so that the control unit can judge whether the wire rod exceeds the set length, and therefore the judgment error is correspondingly reduced.
4. In the fourth technical scheme, the included angle of the first direction relative to the horizontal plane is 20-70 degrees, namely, the wire rod conveyed by the feeding mechanism inclines upwards, the connecting line of the butt end higher than the output end of the feeding mechanism and the wire inlet end of the wire cutting unit reserves a space for upward movement of the wire rod, when the wire rod between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit lengthens relative to the tensioning state of the wire rod, the wire rod arches upwards until the butt end abuts against the wire rod and drives the rotating part to rotate, and the butt end is set to be a range in which the length of the wire rod is changed from the tensioning state to exceed the preset length.
5. In the technical scheme, the supporting end supports the wire rod when the rotating part is located at the initial position, and when the rotating part is located at the initial position, the supporting end and the wire cutting unit of the wire loading coil, the feeding mechanism and the via hole are sequentially changed, so that the wire rod is smoothly transited between the wire loading coil and the wire cutting unit, the wire rod is prevented from being bent, and the product quality is improved.
6. In the sixth technical scheme, the first axis is lower than the input end of the feeding mechanism, so that the detection unit is convenient to mount, and the structure is simple and practical; the via hole radially extends and becomes the runway form along rotating the piece, the butt end is located the one end of keeping away from first axis, the wire rod when moving between support end and butt end, not only can act on support end and the butt end of via hole, still can act on the long lateral wall of via hole, thereby make the wire rod move to butt end or by the butt end by supporting the end and when moving to butt support end, can act on the long lateral wall of via hole and drive the via hole and rotate, thereby it rotates to be more convenient for drive rotation piece, wherein, when the wire rod becomes long for its tensioning state between the inlet wire end of feed mechanism's output and cutting wire unit, the wire rod moves to butt end by supporting the end, correspondingly, when the wire rod tensioning, the wire rod then moves to butt support the end by the butt end.
7. In the seventh technical scheme, the feeding mechanism comprises an upper pressing wheel, a lower pressing wheel and a driving part, the upper pressing wheel and the lower pressing wheel tightly press the wire, and the connection line of the axis of the upper pressing wheel and the axis of the lower pressing wheel is inclined relative to a plumb line, so that the wire is output by the feeding mechanism along a first direction, and the pressure of the upper pressing wheel on the wire is reduced by the design, so that the abrasion of the wire is reduced; the pinch roller or the lower pinch roller is driven by the driving piece to generate friction force so as to drive the wire rod to output along the first direction, and the structure is simple and practical.
8. In the technical scheme eight, set up first setting element and second setting element, avoided the wire rod skew to go up pinch roller and push down the wheel, guaranteed that the wire rod is pressed tightly by last pinch roller and push down the wheel all the time.
9. In the ninth technical solution, the structural design of the driving member can increase the torque.
10. In the technical scheme ten, the included angle of the first direction relative to the horizontal plane is 110-160 degrees, namely, the wire rod conveyed by the feeding mechanism inclines downwards, the connecting line of the abutting end lower than the output end of the feeding mechanism and the wire inlet end of the wire cutting unit reserves a space for downward movement of the wire rod, when the wire rod between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit becomes longer relative to the tensioning state of the wire rod, the wire rod moves downwards until the abutting end abuts against the rotating part and drives the rotating part to rotate, and the abutting end is set to be a length change range which is reserved when the wire rod is changed from the tensioning state to exceed the preset.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a perspective view of a first view angle when the sum of the length of a wire rod between an output end of a feeding mechanism and a via hole and the length of the wire rod between the via hole and a wire inlet end of a wire cutting unit is shortest according to an embodiment of the invention;
FIG. 2 is a schematic perspective view of a wire rod according to an embodiment of the present invention when the lengths of the output end of the feeding mechanism and the wire inlet end of the wire cutting unit exceed a set length;
FIG. 3 is a perspective view of a second view of the embodiment of the present invention when the sum of the length of the wire rod between the output end of the feeding mechanism and the through hole and the length of the wire rod between the through hole and the wire inlet end of the wire cutting unit is shortest;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic view of the engagement between the driving member and the upper pressure wheel according to the embodiment of the present invention.
Description of the main reference numerals:
10. a frame, 20, a wire-loading reel,
30. the wire feeding device comprises a wire feeding unit 31, a feeding mechanism 311, an upper pressing wheel 312, a lower pressing wheel 313, a driving piece 3131, a first gear 3132, a second gear 3133, a third gear 3134, a fourth gear 32, a first positioning piece 321, a first positioning hole 33, a second positioning piece 331 and a second positioning hole;
40. the wire cutting device comprises a wire cutting unit 41, a wire feeding wheel set 42, a cutter 50, a detection unit 51, a rotating piece 511, a via hole 5111, a contact end 5112, a support end 52 and a detector; 60. a wire rod;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are presently preferred embodiments of the invention and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.
In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.
In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.
In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.
Referring to fig. 1 to 5, fig. 1 to 5 show an automatic thread loading apparatus including a housing 10, a thread loading reel 20, a thread supplying unit 30, a thread cutting unit 40, a detecting unit 50, and a control unit (not shown). The wire loading roll 20, the wire supplying unit 30, the detecting unit 50 and the wire cutting unit 40 are sequentially mounted on the machine frame 10 along the length direction of the machine frame 10.
The wire 60 to be processed is wound around the wire coil 20, in this embodiment, the wire 60 is a copper wire, the rotating shaft of the wire coil 20 is rotatably mounted on the frame 10, the rotating shaft of the wire coil 20 is made of a rusty iron core, and no bearing is mounted to increase the friction force.
The wire supply unit 30 is used for feeding wire from the wire-loading reel 20 and includes a feeding mechanism 31, a first positioning member 32 and a second positioning member 33.
The feeding mechanism 31 is used for driving the wire 60 to advance along a first direction, and the first direction is inclined relative to a horizontal plane, and is realized by the following structures:
the feeding mechanism 31 includes an upper pressing wheel 311, a lower pressing wheel 312 and a driving element 313, the rotating shaft of the upper pressing wheel 311 and the rotating shaft of the lower pressing wheel 312 are both rotatably installed on the frame 10, the upper pressing wheel 311 and the lower pressing wheel 312 are tangent and press the wire 60, and the connection line of the axis of the upper pressing wheel 311 and the axis of the lower pressing wheel 312 is inclined with respect to the plumb line, in this embodiment, the inclination angle is 20-70 °, so that the included angle of the internal common tangent of the upper pressing wheel 311 and the lower pressing wheel 312 with respect to the horizontal plane is 20-70 °, and the extending direction of the internal common tangent is the first direction. Driving element 313 is installed on frame 10, in this embodiment, driving element 313 is an ac speed reduction motor, an output end of driving element 313 is provided with a first gear 3131, a second gear 3132 connected to first gear 3131 through a transmission belt, a third gear 3133 coaxially connected to second gear 3132, and a fourth gear 3134 engaged with third gear 3133, wherein first gear 3131 is a driving gear, second gear 3132 is a driven gear, and the rotation axes of fourth gear 3134 and upper pressing wheel 311 are the same, so that upper pressing wheel 311 and fourth gear 3134 rotate synchronously, and the structural design of driving element 313 increases torque. In this embodiment, the upper pressing wheel 311 and the lower pressing wheel 312 are both rubber wheels, and nylon bandages are wound on the upper pressing wheel 311 and the lower pressing wheel 312. The driving part 313 can drive the upper pinch roller 311 to rotate when working, the upper pinch roller 311 and the lower pinch roller 312 generate friction force when in friction to drive the wire 60 to move forward along the first direction, the structure is simple and practical, and the line connecting the axis of the upper pinch roller 311 and the axis of the lower pinch roller 312 is inclined relative to the plumb line, so that the pressure of the upper pinch roller 311 on the wire 60 can be reduced, and the abrasion of the wire 60 is reduced.
The first positioning member 32 and the second positioning member 33 are respectively disposed at the upstream and the downstream of the feeding mechanism 31 and are disposed on the frame 10, the first positioning member 32 is provided with a first positioning hole 321, the second positioning member 33 is provided with a second positioning hole 331, and a connecting line of the first positioning hole 321 and the second positioning hole 331 overlaps with an inner common tangent of the upper pinch roller 311 and the lower pinch roller 312, so that the wire 60 is prevented from deviating from the upper pinch roller 311 and the lower pinch roller 312, and the wire 60 is guaranteed to be pressed by the upper pinch roller 311 and the lower pinch roller 312 all the time.
The detecting unit 50 includes a rotating member 51 and a detector 52, the rotating member 51 is mounted on the frame 10, one end of the rotating member 51 away from the rotation axis extends in a radial direction to form a through hole 511 for the wire 60 to pass through, as shown in fig. 4, the through hole 511 is shaped like a track, the through hole 511 has an abutting end 5111 and a supporting end 5112 opposite to each other, in this embodiment, the abutting end 5111 is located at one end away from the rotation axis of the rotating member 51, the supporting end 5112 is located at one end close to the rotation axis of the rotating member 51, and the rotating member 51 is configured to be driven by the wire 60 to rotate around the first axis on a second plane perpendicular. The detector 52 is an angle sensor in this embodiment, and is installed on the rotating shaft of the rotating member 51, and is used for measuring the rotating angle of the rotating member 51 relative to its initial position, which can be set according to the actual use condition, and outputting the detection result.
The wire cutting unit 40 comprises a controller, a driving mechanism, a wire feeding wheel set 41 and a cutter 42 which are sequentially arranged, wherein the driving mechanism comprises a first driving unit for driving the wire feeding wheel set 41 to rotate and a second driving unit for driving the cutter 42 to move along the vertical direction, the controller controls the second driving unit to cut the wire 60 at intervals of set time, the controller controls the first driving unit and the second driving unit to work alternately, namely when the second driving unit drives the wire feeding wheel set 41 to feed wires, the first driving unit does not work so that the cutter 42 is located at an initial position; when the first driving unit drives the cutting knife 42 to approach the wire rod along the vertical direction, the second driving unit does not work to ensure the length of the wire rod to be consistent. The wire inlet end of the wire feeding wheel set 41 is the wire inlet end of the wire cutting unit 40.
The control unit is a controller in the embodiment, which is in signal connection with the angle sensor and the driving part 313, receives the detection result sent by the angle sensor, judges whether the length of the wire 60 between the output end of the feeding mechanism 31 and the wire inlet end of the wire cutting unit 40 exceeds a set length according to the detection result, and controls the feeding mechanism 31 to decelerate when the result is yes, and in the embodiment, the controller is integrated on the driving part 313.
In the present embodiment, the wire 60 is supplied from the wire loading roll 20, sequentially passes through the first positioning hole 321 of the first positioning member 32, the feeding mechanism 31, the second positioning hole 331 of the second positioning member 33, and the through hole 511 of the rotating member 51, enters the wire feeding end of the wire cutting unit 40, and is conveyed to the cutting knife 42 by the wire feeding wheel set 41 of the wire cutting unit 40 for being cut by the cutting knife 42.
The output end of the feeding mechanism 31 and the wire feeding end of the wire cutting unit 40 are located on a first plane perpendicular to the ground, and a second plane is perpendicular to both the first plane and the ground, i.e., the rotating member 51 is driven by the wire 60 to rotate around the first axis on the second plane perpendicular to the first plane and the ground. The present embodiment defines the initial position of the rotating member 51 as the position where the rotating member 51 is located when the sum of the length of the wire 60 between the output end of the feeding mechanism 31 and the through hole 511 and the length thereof between the through hole 511 and the wire feeding end of the wire cutting unit 40 is the shortest, that is, the position where the rotating member 51 is located when the wire 60 is in a tensioned state between the output end of the feeding mechanism 31 and the wire feeding end of the wire cutting unit 40.
When the length of the wire 60 between the output end of the feeding mechanism 31 and the through hole 511 and the length of the wire 60 between the through hole 511 and the wire cutting unit 40 are the shortest, the wire 60 is in a tensioned state, the rotating member 51 is located at an initial position, the whole device normally operates, when the length of the wire 60 between the feeding mechanism 31 and the wire cutting unit 40 is too long, the wire 60 acts on the through hole 511 of the rotating member 51 to drive the rotating member 51 to rotate, and whether the length of the wire 60 between the output end of the feeding mechanism 31 and the wire inlet end of the wire cutting unit 40 exceeds a set length can be judged by detecting the rotating angle of the rotating member 51 relative to the initial position.
In the embodiment, the first axis is parallel to the first plane, that is, the rotating shaft of the rotating member 51 is located at the side of the first plane, and when the wire 60 between the output end of the feeding mechanism 31 and the wire inlet end of the wire cutting unit 40 is lengthened relative to the tensioned state, the rotating member 51 is more easily driven by the wire 60 to rotate towards the side where the rotating shaft of the rotating member 51 is located, so that the rotating member 51 is driven to rotate when the wire 60 between the output end of the feeding mechanism 31 and the wire inlet end of the wire cutting unit 40 is lengthened relative to the tensioned state.
In the embodiment, the first direction has an angle of 60 ° with respect to the horizontal plane, that is, the wire 60 is inclined upwards after passing through the feeding mechanism 31, the first axis is set to be lower than the input end of the feeding mechanism 31 to facilitate installation of the detection unit 50, and the abutting end 5111 of the through hole 511 is located at one end far away from the first axis, and when the rotating member 51 is located at the initial position, the connecting line of the abutting end 5111 higher than the output end of the feeding mechanism 31 and the wire inlet end of the wire cutting unit 40 reserves a space for the upward movement of the wire 60, that is, the wire 60 can be arched upwards when becoming longer relative to the tensioned state, so as to gradually abut against the abutting end 5111 of the through hole 511 and drive the rotating member 51 to rotate on the second.
In order to make the wire 60 smoothly transited, when the wire loading roll 20 is installed, the input end of the wire loading roll 31 is lower than the input end of the feeding mechanism 31, the wire feeding end of the wire cutting unit 40 is higher than the output end of the feeding mechanism 31, when the rotating member 51 is located at the initial position, the supporting end 5112 of the through hole 511 supports the wire 60, and the supporting end 5112 is higher than the output end of the feeding mechanism 31 and lower than the wire feeding end of the wire cutting unit 40, namely when the rotating member 51 is located at the initial position, the wire loading roll 20, the feeding mechanism 31, the supporting end 5112 of the through hole 511 and the wire cutting unit 40 are sequentially higher, so that the wire 60 smoothly transits between the wire loading roll 20 and the wire cutting unit 40.
Since the through hole 511 extends in the radial direction of the rotation member 51 and is race track-shaped, the abutting end 5111 is located at an end away from the first axis of the rotation member 51, and when the wire 60 moves between the supporting end 5112 and the abutting end 5111, not only the support end 5112 and the abutting end 5111 of the via 511, but also the long sidewalls of the via 511, so that when the wire 60 moves from the support end 5112 to the abutting end 5111 or from the abutting end 5111 to the abutting support end 5112, acts on the long sidewalls of the through hole 511 to rotate the through hole 511, thereby more conveniently rotating the rotation member 51, wherein, when the wire 60 between the output end of the feeding mechanism 31 and the wire inlet end of the wire cutting unit 40 is lengthened relative to the tensioning state, the wire 60 moves from the support end 5112 to the abutting end 5111, and accordingly, when the wire 60 is tensioned, the wire 60 moves from the abutting end 5111 to the abutting support end 5112.
It should be understood that if the angle between the first direction and the horizontal plane is 120 °, that is, the wire 60 is inclined downward after passing through the feeding mechanism 31, and the first axis is set to be lower than the input end of the feeding mechanism 31, the abutting end 5111 of the through hole 511 needs to be located at an end close to the first axis, so that the wire 60 is arched downward when the wire is elongated relative to the tensioned state, and then the abutting end 5111 of the through hole 511 is gradually abutted and the rotating member 51 is driven to rotate; if the angle of the first direction relative to the horizontal plane is 0 °, that is, the wire 60 passes through the feeding mechanism 31 and then moves horizontally, and the first axis is set to be lower than the input end of the feeding mechanism 31, the through hole 511 needs to be set to be circular, at this time, the through hole 511 has no supporting end 5112, only has the abutting end 5111, and the wall of the through hole 511 can form the abutting end 5111, so that the wire 60 can be arched when being lengthened relative to the tensioned state, and the rotating member 51 can be driven to rotate.
It will be appreciated that inclining the first direction relative to the horizontal plane may allow the direction of the force applied by the wire 60 to the rotary member 51 to be determined accordingly, facilitating setting of a threshold value of the rotation angle for the control unit to determine whether the wire 60 exceeds the set length, thereby reducing the determination error accordingly.
The working process is as follows:
after the device is started, the controller controls the driving part 313 to rotate, the driving part 313 drives the upper pressing wheel 311 to rotate, the upper pressing wheel 311 drives the lower pressing wheel 312 to rotate, the friction force generated by the upper pressing wheel 311 and the lower pressing wheel 312 drives the wire 60 positioned between the upper pressing wheel 311 and the lower pressing wheel 312 to advance along a first direction, correspondingly, the wire carrying coil 20 is also driven to rotate, the wire 60 passes through the second positioning hole 331 and the through hole 511 after being output by the feeding mechanism 31 and enters the wire inlet end of the wire cutting unit 40, the wire feeding wheel group 41 of the wire cutting unit 40 conveys the wire 60 to the position of the cutter 42 and is cut by the cutter 42, at the moment, the rotating part 51 is positioned at an initial position, the detector 52 detects the rotating angle of the rotating part 51 relative to the initial position in real time and sends the rotating angle to the controller, and the controller receives the detection result of the detector 52 and judges whether the length of the wire 60 between, in this embodiment, when the angle of the rotating element 51 relative to its initial position is 0 °, the controller sends a first command to the driving element 313 after receiving the first command, and the driving element 313 rotates at a first speed after receiving the first command;
after the device is operated for a period of time, the wire 60 is not conveyed by the wire cutting unit 40 when the cutting knife 42 cuts, the length of the wire 60 between the feeding mechanism 31 and the wire cutting unit 40 is gradually increased, after the wire 60 is increased, the wire 60 moves from the supporting end 5112 to the abutting end 5111, and because the through hole 511 is in a runway shape, when the wire 60 moves between the supporting end 5112 and the abutting end 5111, the wire 60 not only acts on the supporting end 5112 and the abutting end 5111 of the through hole 511, but also acts on the long side wall of the through hole 511, so that when the wire 60 moves from the supporting end 5112 to the abutting end 5111 or from the abutting end 5111 to the abutting supporting end 5112, the wire 60 acts on the long side wall of the through hole 511 to drive the through hole 511 to rotate, thereby driving the rotating member 51 to rotate; the detector 52 detects the rotation angle of the rotating member 51 relative to its initial position and sends it to the control unit, the control unit receives the detection result and judges whether the length of the wire 60 between the output end of the feeding mechanism 31 and the input end of the wire cutting unit 40 exceeds a set length or not, in this embodiment, when the rotation angle of the rotating member 51 relative to its initial position exceeds 10 °, the control unit receives and judges that the length of the wire 60 between the feeding mechanism and the wire cutting unit 40 exceeds the set length, controls the driving member 313 to decelerate, i.e. sends a second instruction to the driving member 313, the driving member 313 receives the second instruction and rotates at a second speed, wherein the second speed is smaller than the first speed, and after the driving member 313 decelerates, the length of the wire 60 between the output end of the feeding mechanism 31 and the input end of the wire cutting unit 40 is reduced, and gradually returns the wire 60 to a tensioned state, the wire cutting unit 40 is ensured to cut the wires 60 with the same length, and when the driving part 313 decelerates, the speed of the feeding mechanism 31 for conveying the wires 60 is still higher than the speed of the wire 60 supplied by the wire loading roll 20, so that the wire 60 on the wire loading roll 20 is prevented from being jammed. After the wire 60 is gradually tensioned, the rotating member 51 returns to the initial position, and the controller accordingly sends a first command to the driving member 313, and so on.
The automatic wire cutting device of the invention can not only prevent the wire rod on the wire loading roll 20 from being blocked, but also detect whether the wire rod conveyed to the wire inlet end of the wire cutting unit 40 is loosened or not, and control the feeding mechanism 31 to decelerate according to the loosening, so that the wire rod conveyed to the wire inlet end of the wire cutting unit 40 is gradually tensioned, thereby eliminating the error accumulated in the wire rod cutting process, ensuring that the wire rod 60 with the consistent length is cut by the wire cutting unit 40, and having high production efficiency and high product qualification rate.
The description of the above specification and examples is intended to be illustrative of the scope of the present invention and is not intended to be limiting. Modifications, equivalents and other improvements which may occur to those skilled in the art and which may be made to the embodiments of the invention or portions thereof through a reasonable analysis, inference or limited experimentation, in light of the common general knowledge, the common general knowledge in the art and/or the prior art, are intended to be within the scope of the invention.
Claims (10)
1. The utility model provides an automatic wire cutting device which characterized in that: comprises that
A wire supply unit for winding wire from the wire carrier, including a feeding mechanism for driving the wire to advance;
the wire cutting unit is used for cutting the wire rod conveyed by the feeding mechanism, and the output end of the feeding mechanism and the wire inlet end of the wire cutting unit are positioned on a first plane vertical to the ground;
a detection unit including a rotation member and a detector; the rotating piece is arranged between the feeding mechanism and the wire cutting unit, is provided with a through hole for the wire to pass through, and is configured to be driven by the wire to rotate on a second plane vertical to the first plane and the ground;
the detector is used for detecting the rotation angle of the rotating part relative to the initial position of the rotating part and outputting a detection result; and
the control unit judges whether the length of the wire rod between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit exceeds a set length according to the detection result, and controls the feeding mechanism to decelerate if the result is yes;
the initial position of the rotating part is the position where the rotating part is located when the sum of the length of the wire rod between the output end of the feeding mechanism and the through hole and the length of the wire rod between the through hole and the wire inlet end of the wire cutting unit is shortest.
2. An automatic wire cutting device according to claim 1, characterized in that: the rotating member rotates about a first axis parallel to the first plane.
3. An automatic wire cutting device according to claim 2, characterized in that: the feeding mechanism is used for driving the wire to advance along a first direction, and the first direction is inclined relative to the horizontal plane.
4. An automatic wire cutting device according to claim 3, characterized in that: the included angle of the first direction relative to the horizontal plane is 20-70 degrees; the through hole is provided with an abutting end which is used for abutting the wire rod when the wire rod is loosened between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit; when the rotating piece is located at the initial position, the abutting end is higher than a connecting line of the output end of the feeding mechanism and the wire inlet end of the wire cutting unit.
5. An automatic wire cutting device according to claim 4, characterized in that: the wire loading coil is lower than the input end of the feeding mechanism, and the wire inlet end of the wire cutting unit is higher than the output end of the feeding mechanism;
the via hole is also provided with a supporting end opposite to the abutting end; when the rotating piece is located at the initial position, the supporting end supports the wire, and the supporting end is higher than the output end of the feeding mechanism and lower than the wire inlet end of the wire cutting unit, so that the wire can be smoothly transited between the wire loading roll and the wire inlet end of the wire cutting unit.
6. An automatic wire cutting device according to claim 5, characterized in that: the through hole extends along the radial direction of the rotating piece and is in a runway shape; the first axis is lower than the input end of the feeding mechanism, the abutting end is located at one end, far away from the first axis, of the through hole, and the supporting end is located at one end, close to the first axis, of the through hole.
7. An automatic wire cutting device according to claim 2, characterized in that: feed mechanism includes pinch roller, pinch roller and driving piece down, the axis of going up the pinch roller and the line of the axis of pinch roller down incline for the plumb line, go up the pinch roller and pinch roller compaction wire rod down, thereby go up pinch roller or pinch roller down and receive the driving piece drive to drive the wire rod and advance along first direction with production frictional force.
8. An automatic wire cutting device according to claim 7, characterized in that: the wire supply unit further comprises a first positioning piece and a second positioning piece which are respectively arranged at the upper stream and the lower stream of the feeding mechanism, the first positioning piece is provided with a first positioning hole, the second positioning piece is provided with a second positioning hole, and the connecting line of the first positioning hole and the second positioning hole is coincided with the inner common tangent of the upper pinch roller and the lower pinch roller.
9. An automatic wire cutting device according to claim 7, characterized in that: the output end of the driving piece is provided with a first gear, a second gear connected with the first gear through a conveying belt, a third gear coaxially connected with the second gear and a fourth gear meshed with the third gear, wherein the first gear is a driving wheel, the second gear is a driven wheel, and the upper pressing wheel and the fourth gear rotate synchronously.
10. An automatic wire cutting device according to claim 3, characterized in that: the included angle of the first direction relative to the horizontal plane is 110-160 degrees; the through hole is provided with an abutting end which is used for abutting the wire rod when the wire rod is loosened between the output end of the feeding mechanism and the wire inlet end of the wire cutting unit; when the rotating piece is located at the initial position, the abutting end is lower than a connecting line of the output end of the feeding mechanism and the wire inlet end of the wire cutting unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011641039.3A CN112722984B (en) | 2020-12-31 | 2020-12-31 | Automatic wire cutting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011641039.3A CN112722984B (en) | 2020-12-31 | 2020-12-31 | Automatic wire cutting device |
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| CN112722984A true CN112722984A (en) | 2021-04-30 |
| CN112722984B CN112722984B (en) | 2023-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147149A (en) * | 2021-12-02 | 2022-03-08 | 宁波威冠电子有限公司 | Long wire cutting machine |
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| KR102329579B1 (en) * | 2021-01-06 | 2021-11-22 | (주)엔에스 | apparatus for laying cable |
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| DE3501734A1 (en) * | 1985-01-19 | 1986-07-24 | Walter 7995 Neukirch Strauß | Unwinding device for strand material present in roll form |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114147149A (en) * | 2021-12-02 | 2022-03-08 | 宁波威冠电子有限公司 | Long wire cutting machine |
| CN114147149B (en) * | 2021-12-02 | 2024-04-26 | 宁波威冠电子有限公司 | Long wire cutting machine |
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| Publication number | Publication date |
|---|---|
| CN112722984B (en) | 2023-05-26 |
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