CN216065334U - Thread trimming mechanism - Google Patents
Thread trimming mechanism Download PDFInfo
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- CN216065334U CN216065334U CN202122576529.6U CN202122576529U CN216065334U CN 216065334 U CN216065334 U CN 216065334U CN 202122576529 U CN202122576529 U CN 202122576529U CN 216065334 U CN216065334 U CN 216065334U
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- connecting rod
- movable
- fixed
- crankshaft
- trimming mechanism
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Abstract
The utility model provides a thread trimming mechanism, which comprises a supporting plate, a fixed cutter seat arranged on the supporting plate, a movable cutter seat rotationally connected with the fixed cutter seat, and a driving component for driving the movable cutter seat to rotate, wherein a groove extending along the front-back direction is formed in a fixed cutter of the fixed cutter seat, so that a cutting edge of a movable cutter on the movable cutter seat is attached to a cutting edge of the fixed cutter and is perpendicular to the groove, the thread to be trimmed can be conveniently penetrated, the position of the thread to be trimmed can be limited, the thread to be trimmed is prevented from shaking, the trimming effect is good, the upper end part of a connecting rod is rotationally connected with the movable cutter seat by enabling the driving component to comprise the connecting rod, a crankshaft rotationally connected with the lower end part of the connecting rod, and a servo motor for driving the crankshaft to rotate, so that the servo motor can drive the movable cutter and the fixed cutter to trim the thread to be trimmed, the moment is enlarged, the shearing force is large, the shearing and resetting speed is improved, and the shearing efficiency is high.
Description
Technical Field
The utility model relates to the technical field of wire cutting, in particular to a wire cutting mechanism.
Background
The thread cutting mechanism is a mechanism for cutting a thread-shaped product into a set length, most of the existing thread cutting mechanisms are driven by pneumatic components such as air cylinders, and are difficult to cut when cutting products with large thread diameter, and some thread cutting mechanisms driven by hydraulic components have large cutting force and can cut products with large thread diameter, but the cutting and resetting speed is slow, the cutting efficiency is low, fractures are uneven, and the cutting effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the thread shearing mechanism with large shearing force, high shearing efficiency and good shearing effect.
In order to achieve the above object, the present invention provides a thread trimming mechanism, comprising:
the plane of the supporting plate is perpendicular to the horizontal plane, and the supporting plate extends along the left-right direction;
the fixed cutter seat is arranged on the front surface of the supporting plate, and a fixed cutter is arranged on the fixed cutter seat;
the movable cutter holder is rotatably connected to the front side surface of the fixed cutter holder, the rotating axis of the movable cutter holder extends along the front-back direction, and a movable cutter is arranged on the movable cutter holder;
the driving assembly is used for driving the movable cutter seat to rotate so as to drive the movable cutter to rotate relative to the fixed cutter to cut off the thread to be cut;
the fixed knife is provided with a groove for a thread to be cut to pass through, the groove extends along the front-back direction, and the cutting edge of the movable knife is attached to the cutting edge of the fixed knife and is perpendicular to the groove; the driving assembly comprises a connecting rod, a crankshaft and a servo motor, the connecting rod extends in the vertical direction, the upper end of the connecting rod is connected with the movable cutter holder in a rotating mode, the lower end of the connecting rod is connected with the crankshaft in a rotating mode, the upper end of the connecting rod and the rotating axis of the lower end of the connecting rod extend horizontally in the left-right direction, the output shaft of the servo motor is connected with the crankshaft, the rotating axis of the crankshaft is parallel to the rotating axis of the lower end of the connecting rod and is separated from the rotating axis of the connecting rod in a spaced mode, the servo motor drives the crankshaft to rotate, so that the connecting rod moves up and down to drive the movable cutter holder to rotate, and the movable cutter and the fixed cutter are cut to cut a wire to be cut.
Preferably, a speed reducer is arranged between the servo motor and the crankshaft, an output shaft of the servo motor is connected with an input end of the speed reducer, and an output end of the speed reducer is connected with the crankshaft.
Preferably, the lower end of the connecting rod is connected with the crankshaft through a fisheye ball bearing.
Preferably, the movable knife holder is rotatably connected with the fixed knife holder through a rotating shaft, the rotating shaft is located on the right side of the connecting rod, the rotating shaft is located on the left sides of the movable knife and the fixed knife, and the distance between the rotating shaft and the connecting rod is greater than the distance between the rotating shaft and the fixed knife edge and the distance between the fixed knife edge and the movable knife edge.
Preferably, two end portions of the rotating shaft are respectively sleeved with a group of angular contact bearings, and the rotating shaft is rotatably connected with the movable cutter holder and the fixed cutter holder through the angular contact bearings.
Preferably, the fixed knife is detachably connected in a fixed knife groove on the fixed knife seat, and the movable knife is detachably connected in a movable knife groove on the movable knife seat.
Preferably, the trimming mechanism further comprises a sliding rail and a sliding block, the sliding rail is arranged on the front surface of the supporting plate and horizontally extends along the left-right direction, the sliding block is slidably sleeved on the sliding rail, and the sliding block is used for installing the cutter holder.
Further preferably, the thread trimming mechanism further comprises a screw rod, a nut and a position adjusting motor, the screw rod is rotatably arranged on the front surface of the supporting plate, the screw rod horizontally extends in the left-right direction and is located above the sliding rail, the nut is matched with the screw rod and sleeved on the screw rod, the nut is fixedly connected with the sliding block, and the position adjusting motor is arranged on the front surface of the supporting plate and is used for driving the screw rod to rotate so as to adjust the cutting position.
Further preferably, the position adjusting motor is connected with the screw rod through a coupling.
Further preferably, the wire to be cut comprises any one of a paint-stripped copper wire, a paint-stripped aluminum wire, a copper-core cable and an aluminum-core cable.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model provides a thread trimming mechanism, which comprises a supporting plate, a fixed cutter seat arranged on the supporting plate, a movable cutter seat rotationally connected with the fixed cutter seat, and a driving component for driving the movable cutter seat to rotate, wherein a groove extending along the front-back direction is formed on a fixed cutter of the fixed cutter seat, so that the cutting edge of a movable cutter on the movable cutter seat is attached to the cutting edge of the fixed cutter and is vertical to the groove, the thread to be trimmed can be conveniently penetrated, the position of the thread to be trimmed can be limited, the thread to be trimmed is prevented from shaking, the trimming effect is good, the upper end part of a connecting rod is rotationally connected with the movable cutter seat by enabling the driving component to comprise the connecting rod, a crankshaft rotationally connected with the lower end part of the connecting rod, and a servo motor for driving the crankshaft to rotate, the rotating axis of the upper end part and the lower end part of the connecting rod are horizontally extended along the left-right direction, the rotating axis of the crankshaft is parallel to the rotating axis of the lower end part of the connecting rod and is spaced, so that the servo motor can drive the crankshaft to rotate to realize the up-down and down movement of the connecting rod, thereby driving the movable cutter and the fixed cutter to cut off the thread to be cut, amplifying the moment, having large cutting force, improving the cutting and resetting speed and having high cutting efficiency.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention.
Fig. 2 is an assembled exploded view of fig. 1.
Wherein: 10. a supporting seat; 20. a fixed cutter seat; 21. fixing a cutter; 22. a groove; 23. a rotating shaft; 24. an angular contact bearing; 25. a cutter positioning groove; 30. a movable cutter seat; 31. moving a knife; 32. a movable cutter groove; 40. a drive assembly; 41. a connecting rod; 42. a crankshaft; 43. a speed reducer; 44. a servo motor; 45. a fisheye ball bearing; 51. a slide rail; 52. a slider; 53. a screw rod; 54. a nut; 55. a position adjustment motor; 56. a coupling is provided.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.
The up-down, front-back, and left-right directions in the present invention refer to the up-down, left-right, and front-back directions in fig. 1.
As shown in fig. 1-2, the thread trimming mechanism provided by the present invention comprises: the cutting device comprises a supporting plate 10, a fixed cutter seat 20, a movable cutter seat 30 and a driving assembly 40, wherein the plane of the supporting plate 10 is vertical to the horizontal plane, and the supporting plate 10 extends along the left-right direction; the fixed cutter seat 20 is arranged on the front surface of the supporting plate 10, and a fixed cutter 21 is arranged on the fixed cutter seat 20; the movable knife seat 30 is rotatably connected to the front side surface of the fixed knife seat 20, the rotating axis of the movable knife seat 30 extends along the front-back direction, and the movable knife 31 is arranged on the movable knife seat 30; the driving component 40 is used for driving the movable cutter holder 30 to rotate so as to drive the movable cutter 31 to rotate relative to the fixed cutter 21 to cut off the thread to be cut; in this embodiment, the fixed knife 21 is provided with a groove 22 for the thread to be cut to pass through, the groove 22 extends in the front-rear direction, and the cutting edge of the movable knife 31 is attached to the cutting edge of the fixed knife 21 and perpendicular to the groove 22, so that the thread to be cut can be conveniently penetrated, the position of the thread to be cut can be limited, the thread to be cut is prevented from shaking, and the cutting effect is good; the driving assembly 40 comprises a connecting rod 41, a crankshaft 42 and a servo motor 44, wherein the connecting rod 41 extends along the vertical direction, the upper end part of the connecting rod 41 is rotatably connected with the movable cutter holder 30, the lower end part of the connecting rod 41 is rotatably connected with the crankshaft 42, the rotating axes of the upper end part of the connecting rod 41 and the lower end part of the connecting rod 41 horizontally extend along the left-right direction, the output shaft of the servo motor 44 is connected with the crankshaft 42, the rotating axis of the crankshaft 42 is parallel to and spaced from the rotating axis of the lower end part of the connecting rod 41, the servo motor 44 drives the crankshaft 42 to rotate, so that the connecting rod 41 moves up and down to drive the movable cutter holder 30 to rotate, and the movable cutter 31 and the fixed cutter 21 to cut a line to be cut.
In order to amplify the torque applied by the servo motor 44 to the movable blade holder 30, in the present embodiment, a speed reducer 43 is disposed between the servo motor 44 and the crankshaft 42, specifically, an output shaft of the servo motor 44 is connected to an input end of the speed reducer 43, and an output end of the speed reducer 43 is connected to the crankshaft 42.
In this embodiment, the movable blade holder 30 is rotatably connected to the stationary blade holder 20 through the rotating shaft 23, the rotating shaft 23 is located on the right side of the connecting rod 41, the rotating shaft 23 is located on the left side of the movable blade 31 and the stationary blade 21, and the distance between the rotating shaft 23 and the connecting rod 41 is greater than the distance between the rotating shaft 23 and the cutting edges of the stationary blade 21 and the movable blade 31, so that the advantage of amplifying the torque applied to the movable blade holder 30 by the servo motor 44 by using the lever principle is further provided.
In order to improve the running stability of the thread trimming mechanism, in this embodiment, the lower end of the connecting rod 41 is connected to the crankshaft 42 through a fisheye ball bearing 45, two end portions of the rotating shaft 23 are respectively sleeved with a set of angular contact bearings 24, and the rotating shaft 23 is rotatably connected to the movable blade holder 30 and the fixed blade holder 20 through the angular contact bearings 24.
In order to facilitate replacement of worn cutting edges, in the present embodiment, the fixed blade 21 is detachably connected to the fixed blade groove 25 of the fixed blade seat 20, and the movable blade 31 is detachably connected to the movable blade groove 32 of the movable blade seat 30.
In order to adjust the positions of the holder 20 and the movable holder 30 in the front-rear direction, and thus adjust the cutting position, in the present embodiment, the thread cutting mechanism also comprises a slide rail 51, a slide block 52, a screw rod 53, a nut 54 and a position adjusting motor 55, wherein, the slide rail 51 is arranged on the front surface of the support plate 10, the slide rail 51 horizontally extends along the left-right direction, the slide block 52 is slidably sleeved on the slide rail 51, the slide block 52 is used for installing the fixed tool seat 20, the screw rod 53 is rotatably arranged on the front surface of the support plate 10, the screw rod 53 horizontally extends along the left-right direction and is positioned above the slide rail 51, the screw nut 54 is matched with the screw rod 53 and is sleeved on the screw rod 53, the screw nut 54 is fixedly connected with the slide block 52, the position adjusting motor 55 is arranged on the front surface of the support plate 10 and is used for driving the screw rod 53 to rotate, in order to adjust the cutting position, the position adjusting motor 55 is connected to the screw 53 via a coupling 56.
In this embodiment, the wire to be cut is a paint-stripped copper wire, and of course, the wire to be cut may be any one of a paint-stripped aluminum wire, a copper-core cable, and an aluminum-core cable.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A thread trimming mechanism comprising:
the plane of the supporting plate is perpendicular to the horizontal plane, and the supporting plate extends along the left-right direction;
the fixed cutter seat is arranged on the front surface of the supporting plate, and a fixed cutter is arranged on the fixed cutter seat;
the movable cutter holder is rotatably connected to the front side surface of the fixed cutter holder, the rotating axis of the movable cutter holder extends along the front-back direction, and a movable cutter is arranged on the movable cutter holder;
the driving assembly is used for driving the movable cutter seat to rotate so as to drive the movable cutter to rotate relative to the fixed cutter to cut off a thread to be cut;
the method is characterized in that:
the fixed knife is provided with a groove for a thread to be cut to pass through, the groove extends along the front-back direction, and the cutting edge of the movable knife is attached to the cutting edge of the fixed knife and is perpendicular to the groove; the driving assembly comprises a connecting rod, a crankshaft and a servo motor, the connecting rod extends in the vertical direction, the upper end of the connecting rod is connected with the movable cutter holder in a rotating mode, the lower end of the connecting rod is connected with the crankshaft in a rotating mode, the upper end of the connecting rod and the rotating axis of the lower end of the connecting rod extend horizontally in the left-right direction, the output shaft of the servo motor is connected with the crankshaft, the rotating axis of the crankshaft is parallel to the rotating axis of the lower end of the connecting rod and is separated from the rotating axis of the connecting rod in a spaced mode, the servo motor drives the crankshaft to rotate, so that the connecting rod moves up and down to drive the movable cutter holder to rotate, and the movable cutter and the fixed cutter are cut to cut a wire to be cut.
2. The thread trimming mechanism of claim 1, wherein: a speed reducer is arranged between the servo motor and the crankshaft, an output shaft of the servo motor is connected with an input end of the speed reducer, and an output end of the speed reducer is connected with the crankshaft.
3. The thread trimming mechanism of claim 1, wherein: the lower end part of the connecting rod is connected with the crankshaft through a fisheye ball bearing.
4. The thread trimming mechanism of claim 1, wherein: the movable cutter holder is rotatably connected with the fixed cutter holder through a rotating shaft, the rotating shaft is located on the right side of the connecting rod, the rotating shaft is located on the left side of the movable cutter and the fixed cutter, and the distance between the rotating wheelbase and the connecting rod is larger than the distance between the rotating wheelbase and the fixed cutter cutting edge and the distance between the movable cutter cutting edges.
5. The thread trimming mechanism of claim 1, wherein: and two end parts of the rotating shaft are respectively sleeved with a group of angular contact bearings, and the rotating shaft is rotatably connected with the movable cutter holder and the fixed cutter holder through the angular contact bearings.
6. The thread trimming mechanism of claim 1, wherein: the fixed knife is detachably connected in the fixed knife groove on the fixed knife seat, and the movable knife is detachably connected in the movable knife groove on the movable knife seat.
7. The thread trimming mechanism of claim 1, wherein: the trimming mechanism further comprises a sliding rail and a sliding block, the sliding rail is arranged on the front surface of the supporting plate, the sliding rail horizontally extends along the left and right directions, the sliding block is slidably sleeved on the sliding rail, and the sliding block is used for installing the fixed cutter seat.
8. The thread trimming mechanism of claim 7, wherein: the trimming mechanism further comprises a screw rod, a nut and a position adjusting motor, the screw rod is rotatably arranged on the front surface of the supporting plate, the screw rod horizontally extends along the left and right directions and is located above the sliding rail, the nut is matched with the screw rod and sleeved on the screw rod, the nut is fixedly connected with the sliding block, and the position adjusting motor is arranged on the front surface of the supporting plate and is used for driving the screw rod to rotate so as to adjust the trimming position.
9. The thread trimming mechanism of claim 8, wherein: the position adjusting motor is connected with the screw rod through a coupler.
10. The thread trimming mechanism according to any one of claims 1 to 9, wherein: the wire to be cut comprises any one of a paint stripping copper wire, a paint stripping aluminum wire, a copper core cable and an aluminum core cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576529.6U CN216065334U (en) | 2021-10-26 | 2021-10-26 | Thread trimming mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576529.6U CN216065334U (en) | 2021-10-26 | 2021-10-26 | Thread trimming mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216065334U true CN216065334U (en) | 2022-03-18 |
Family
ID=80641159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122576529.6U Active CN216065334U (en) | 2021-10-26 | 2021-10-26 | Thread trimming mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216065334U (en) |
-
2021
- 2021-10-26 CN CN202122576529.6U patent/CN216065334U/en active Active
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