CN220013008U - VT (variable speed) chopper - Google Patents
VT (variable speed) chopper Download PDFInfo
- Publication number
- CN220013008U CN220013008U CN202320409166.3U CN202320409166U CN220013008U CN 220013008 U CN220013008 U CN 220013008U CN 202320409166 U CN202320409166 U CN 202320409166U CN 220013008 U CN220013008 U CN 220013008U
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- movable cutter
- fixed
- movable
- cutter
- fixing
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- 238000009958 sewing Methods 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 16
- 238000005299 abrasion Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to the field of sewing machines, in particular to a VT (variable speed) cutter which comprises a fixed cutter arranged on a sewing machine placing plate and a movable cutter arranged on a sewing machine head, wherein a movable cutter shaft is arranged on the movable cutter, a driving cylinder is arranged on the movable cutter shaft, a cylinder body of the driving cylinder is arranged on the sewing machine head, the driving cylinder drives the movable cutter shaft and the movable cutter to move towards a direction approaching or far away from the fixed cutter, a tangential pressure regulating spring for pushing the surface of the movable cutter to be abutted against the surface of the fixed cutter is arranged between the movable cutter shaft and a piston rod of the driving cylinder, one end of the tangential pressure regulating spring is arranged on the piston rod of the driving cylinder, and the other end of the tangential pressure regulating spring is fixed on a movable cutter seat. The utility model has the effect of prolonging the service life of the movable cutter.
Description
Technical Field
The utility model relates to the technical field of sewing by a sewing machine, in particular to a VT (variable speed) cutter.
Background
The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on cloth, and interweaves or sews one or more layers of cloth; the sewing machine model has multiple, and different models can make different products, for example VT1500 sewing machine is provided with the chopper device on the VT1500 sewing machine, can cut off elastic cord, bordure head, line head etc. through this chopper device.
The device comprises a cutter assembly and a driving assembly, wherein the cutter assembly comprises a fixed cutter and a movable cutter, the movable cutter is arranged on a piston rod of a driving cylinder, a cylinder body of the driving cylinder is fixed on the head of the sewing machine, and the fixed cutter is arranged on a placing plate of the sewing machine. The articles such as the elastic bands to be cut are moved to the fixed cutter, and then the movable cutter is driven by the driving cylinder to move vertically (which is equivalent to moving towards the direction close to the fixed cutter), the movable cutter is tangential with the fixed cutter, and therefore the articles such as the elastic bands placed on the fixed cutter are cut off.
In the related art, when objects such as elastic bands are cut, the movable cutter needs to move in the reciprocating direction of the fixed cutter, the movable cutter needs to be abutted against the side surface of the fixed cutter in the moving process, and in the long-time moving process, abrasion can occur at the tangent position of the movable cutter and the fixed cutter, so that the service life of the movable cutter is reduced.
Disclosure of Invention
In order to improve the service life of the movable cutter, the utility model provides a VT cutter.
The VT cutting knife provided by the utility model adopts the following technical scheme:
the utility model provides a VT cutting knife, includes the fixed cutting knife that sets up on the sewing machine places the board and installs the activity cutting knife on the sewing machine head, be provided with movable arbor on the activity cutting knife, be provided with the actuating cylinder on the activity arbor, the actuating cylinder body is installed at the sewing machine head, actuating cylinder drives movable arbor and activity cutting knife to being close to or keeping away from the direction removal of fixed cutting knife, be provided with the tangential pressure adjusting spring that is used for promoting the surface butt of activity cutting knife at the surface of fixed cutting knife between the piston rod of activity arbor and actuating cylinder, tangential pressure adjusting spring one end is installed on the piston rod on the actuating cylinder, and the other end is fixed on movable blade holder.
By adopting the technical scheme, when articles such as elastic bands and the like are needed to be cut, the elastic bands are firstly placed on a fixed cutter on a VT sewing machine, the elastic bands are positioned between the fixed cutter and a movable cutter, then a driving cylinder drives the movable cutter shaft and the movable cutter to move towards the direction close to the fixed cutter, when the bottom surface of a sliding blade and the bottom surface of the fixed cutter shaft are on the same plane, the side surfaces of the fixed cutter and the side surfaces of the movable cutter are tangent at the same time, and the elastic bands are cut; due to the arrangement of the tangent pressure regulating spring, when the side surface of the fixed cutter is tangent with the side surface of the movable cutter, the fixed cutter can give flexible pressure to the movable cutter, so that the movable cutter can move in a direction away from the side surface of the fixed cutter, the abrasion of the movable cutter can be reduced, and the service life of the movable cutter is prolonged.
Optionally, install movable blade holder on the piston rod of actuating cylinder, movable arbor sliding connection is on movable blade holder, and is provided with the regulating part on the movable blade holder, the regulating part is used for adjusting tangent pressure adjusting spring's elasticity.
Through adopting above-mentioned technical scheme, when the tangent side of movable cutter and fixed cutter appears wearing and tearing, the regulating part drives movable arbor and movable cutter and removes to the direction that is close to fixed cutter, makes the movable cutter of wearing and tearing still can use to further improve movable cutter's life.
Optionally, the movable knife rest is arranged on the movable knife shaft, a fixing component for fixing the movable knife is arranged on the movable knife rest, and the movable knife is detachably connected to the movable knife rest through the fixing component.
Through adopting above-mentioned technical scheme, because movable cutting die and movable knife rest can dismantle the connection, when the movable cutting die appears wearing and tearing or damage, can conveniently change movable cutting die.
Optionally, the fixed subassembly includes the dead lever that sets up on movable knife rest and fixes the axis of rotation on the dead lever, the axis of rotation rotates to be connected on movable knife rest, the fixed slot has been seted up on the movable chopper, when the dead lever rotated the fixed slot, movable chopper position was fixed.
Through adopting above-mentioned technical scheme, when the fixed activity chop is needed, directly make the dead lever rotate the fixed inslot, realize the fixed to the activity chop, need demolish when changing the activity chop, directly rotate the dead lever, make the dead lever break away from the fixed slot can to it is more convenient when installing and dismantling the activity chop.
Optionally, a fixed spring is installed on the movable tool rest, one end of the fixed spring is arranged on the movable tool rest, the other end of the fixed spring is arranged on the fixed rod, and the fixed spring is used for pushing the fixed rod to be abutted in the fixed groove.
Through adopting above-mentioned technical scheme, under the effect of fixed spring, can promote the dead lever butt in the fixed slot, improve the fixed strength of dead lever in the fixed slot, prevent that the dead lever from breaking away from the fixed slot.
Optionally, the one end that the fixed plate is close to the fixed slot is provided with the butt piece, butt piece and dead lever are the angle setting, the butt piece is used for inserting in the fixed slot.
Through adopting above-mentioned technical scheme, under the effect of butt piece, can conveniently drive the butt piece through the dead lever and rotate the fixed slot in, improve the area of contact of dead lever and fixed slot, improve the fixed effect to movable chopper.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. due to the arrangement of the tangent pressure regulating spring, when the side surface of the fixed cutter is tangent with the side surface of the movable cutter, the fixed cutter can give flexible pressure to the movable cutter, so that the movable cutter can move in a direction away from the side surface of the fixed cutter, the abrasion of the movable cutter can be reduced, and the service life of the movable cutter is prolonged;
2. when the movable cutter is worn on the tangential side surface of the fixed cutter, the adjusting piece drives the movable cutter shaft and the movable cutter to move towards the direction close to the fixed cutter, so that the worn movable cutter can still be used, and the service life of the movable cutter is further prolonged.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present utility model.
Fig. 2 is an exploded view of a movable arbor and movable blade holder according to an embodiment of the present utility model.
Fig. 3 is an enlarged view at a in fig. 2.
Reference numerals: 1. a fixed chopper; 11. a movable chopper; 12. a driving cylinder; 2. a movable knife holder; 21. a movable cutter shaft; 22. a movable tool rest; 3. a fixing assembly; 31. a fixed rod; 32. a rotating shaft; 4. a mounting groove; 41. a tangential pressure regulating spring; 42. a limit groove; 5. an adjusting member; 51. adjusting a screw; 52. a nut; 6. a fixing groove; 61. a fixed spring; 7. and abutting the block.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
The embodiment of the utility model discloses a VT cutting knife. Referring to fig. 1, a VT cutter includes a fixed cutter 1 and a movable cutter 11, the fixed cutter 1 is fixed on a placing plate on a VT sewing machine by bolts, a driving cylinder 12 is provided on the movable cutter 11, a cylinder body of the driving cylinder 12 is mounted on a head of the sewing machine, the driving cylinder 12 works to drive the movable cutter 11 to vertically move, and the driving cylinder is used to make a side surface of the fixed cutter 1 tangent with a side surface of the movable cutter 11, thereby making the VT sewing machine cut articles such as elastic bands.
Referring to fig. 1 and 2, a movable cutter holder 2 is fixedly installed on a piston rod of a driving cylinder 12, a movable cutter shaft 21 is slidably connected to the movable cutter holder 2, the movable cutter shaft 21 is slidably connected to the movable cutter holder 2 along a direction perpendicular to the movement direction of the driving cylinder 12, a movable cutter holder 22 is installed on the movable cutter shaft 21 through bolts, a limit groove 42 is formed in the movable cutter holder 22, the limit groove 42 is formed in the vertical direction, the movable cutter 11 can be prevented from moving on the movable cutter holder 2 along the length direction of the fixed cutter 1 through the limit groove 42, a fixing component 3 for fixing the movable cutter 11 is arranged on the movable cutter holder 2, the fixing component 3 is used for preventing the movable cutter 11 from moving along the vertical direction, and the movable cutter 11 is detachably installed on the movable cutter holder 22 through the fixing component 3, so that the purpose of conveniently replacing the movable cutter 11 can be achieved.
Referring to fig. 1 and 2, a mounting groove 4 is formed in the movable cutter holder 2, one end of the movable cutter shaft 21 is slidably connected in the mounting groove 4, a tangential pressure adjusting spring 41 is arranged in the mounting groove 4, one end of the tangential pressure adjusting spring 41 is welded on the movable cutter shaft 21, and the other end is welded on the inner wall of the mounting groove 4; meanwhile, the adjusting piece 5 is arranged on the movable cutter holder 2, the adjusting piece 5 is used for adjusting the elasticity of the tangent pressure adjusting spring 41, so that when the movable cutter 11 is worn near the side face of the fixed cutter 1, gaps are formed between the tangent side face of the movable cutter 11 and the tangent side face of the fixed cutter 1, the fixed cutter 1 and the movable cutter 11 cannot be tangent, the adjusting piece 5 drives the movable cutter 11 and the movable cutter shaft 21 to move in the direction perpendicular to the movement direction of the driving cylinder 12, the fixed cutter 1 and the movable cutter 11 are tangent, and the service life of the movable cutter 11 is prolonged.
Referring to fig. 1 and 2, the adjusting member 5 is set as an adjusting screw 51, the adjusting screw 51 is horizontally disposed, the adjusting screw 51 is penetrated on the movable tool holder 2 and the movable cutter shaft 21, meanwhile, the tangential pressure adjusting spring 41 is sleeved on the adjusting screw 51, two ends of the adjusting screw 51 are both in threaded connection with nuts 52, the tangential pressure adjusting spring 41 is in a compressed state in an initial state, when the tangential side surface of the movable cutter 11 is worn, the nuts 52 are directly rotated, the compression amount of the tangential pressure adjusting spring 41 is reduced, and meanwhile, the movable cutter shaft 21 and the movable cutter 11 can be moved along the horizontal direction in the direction close to the fixed cutter 1.
Referring to fig. 1 and 2, when the elastic band is cut, the driving cylinder 12 drives the movable cutter to move vertically, and when the bottom surface of the movable cutter 11 is lower than the bottom surface of the fixed cutter 1, the elastic band is cut off; due to the arrangement of the tangent pressure regulating spring 41, when the side surface of the fixed cutter 1 is tangent to the side surface of the movable cutter 11, the fixed cutter 1 can give flexible pressure to the movable cutter 11, so that the movable cutter 11 can move in a direction away from the side surface of the fixed cutter 1, and further the abrasion of the movable cutter 11 can be reduced when the elastic band is cut, and the service life of the movable cutter 11 is prolonged.
Referring to fig. 2 and 3, the fixing assembly 3 includes a fixing bar 31 and a rotating shaft 32, the rotating shaft 32 is fixedly installed on the movable blade holder 22, and simultaneously the fixing bar 31 is rotatably connected to the rotating shaft 32, a fixing groove 6 is formed on the movable blade 11, and the movable blade 11 is fixed on the movable blade holder 22 by rotating the fixing bar 31 such that one end of the fixing bar 31 rotates into the fixing groove 6; when the movable cutter 11 needs to be disassembled and replaced, the fixed rod 31 is reversely rotated, so that the fixed rod 31 is separated from the fixed groove 6, and the movable cutter 11 can be taken down from the movable cutter frame 22, thereby achieving the purpose of very convenient installation and disassembly.
Referring to fig. 2 and 3, in order to improve the fixing strength of the fixing lever 31 in the fixing groove 6, a fixing spring 61 is provided on the movable blade holder 22, one end of the fixing spring 61 is welded to the fixing lever 31, the other end is welded to the movable blade holder 22, and the fixing spring 61 urges the fixing lever 31 to rotate about the rotation shaft 32 while abutting the end of the fixing lever 31 in the fixing groove 6. In the present embodiment, the fixed spring 61 is provided as a deformable spring.
Referring to fig. 2 and 3, an abutment block 7 is welded on one side of the fixing rod 31, which is close to the fixing groove 6, the abutment block 7 and the fixing rod 31 are arranged in an angle, the abutment block 7 is used for being clamped in the fixing groove 6, and a chamfer is arranged on one side, which is far away from the fixing rod 31, of the abutment block 7, so that the section of the abutment block 7 is gradually increased along the direction, which is close to the fixing rod 31, and the abutment block 7 is conveniently moved into the fixing groove 6. In addition, in order to improve the fixing effect on the movable cutter 11, the fixing members 3 may be provided in plural groups, and the fixing grooves 6 are also provided in plural, and the plural fixing grooves 6 and the fixing members 3 are in one-to-one correspondence.
The implementation principle of the VT cutting knife in the embodiment of the utility model is as follows: when the VT sewing machine cuts the elastic band, the driving cylinder 12 drives the movable cutter 11 to move vertically, and when the bottom surface of the movable cutter 11 is lower than the bottom surface of the fixed cutter 1, the elastic band is cut off; when the side surface of the fixed cutter 1 is tangent with the side surface of the movable cutter 11, the fixed cutter 1 can give flexible pressure to the movable cutter 11, so that the movable cutter 11 can move in a direction away from the side surface of the fixed cutter 1, and further the abrasion of the movable cutter 11 can be reduced when the elastic band is cut, and the durability and the working stability of the movable cutter 11 are improved.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (6)
1. The utility model provides a VT cutting knife, includes fixed cutting knife (1) and the movable cutting knife (11) of installing on the sewing machine head of setting up on sewing machine places the board, its characterized in that: the movable cutter is characterized in that a movable cutter shaft (21) is arranged on the movable cutter shaft (11), a driving air cylinder (12) is arranged on the movable cutter shaft (21), a cylinder body of the driving air cylinder (12) is arranged on the head of the sewing machine, the driving air cylinder (12) drives the movable cutter shaft (21) and the movable cutter (11) to move towards a direction close to or far away from the fixed cutter (1), a tangential pressure regulating spring (41) for pushing the surface of the movable cutter shaft (11) to be abutted against the surface of the fixed cutter (1) is arranged between the movable cutter shaft (21) and a piston rod of the driving air cylinder (12), and one end of the tangential pressure regulating spring (41) is arranged on a piston rod of the driving air cylinder (12), and the other end of the tangential pressure regulating spring is fixed on the movable cutter seat (2).
2. The VT chopper of claim 1, wherein: the movable cutter holder (2) is arranged on a piston rod of the driving cylinder (12), the movable cutter shaft (21) is connected to the movable cutter holder (2) in a sliding mode, an adjusting piece (5) is arranged on the movable cutter holder (2), and the adjusting piece (5) is used for adjusting the elastic force of the tangential pressure adjusting spring (41).
3. The VT chopper of claim 1, wherein: the movable cutter shaft (21) is provided with a movable cutter frame (22), the movable cutter frame (22) is provided with a fixing component (3) for fixing the movable cutter (11), and the movable cutter (11) is detachably connected to the movable cutter frame (22) through the fixing component (3).
4. A VT chopper according to claim 3, wherein: the fixed component (3) comprises a fixed rod (31) arranged on the movable tool rest (22) and a rotating shaft (32) fixed on the fixed rod (31), the rotating shaft (32) is rotationally connected to the movable tool rest (22), a fixed groove (6) is formed in the movable cutter (11), and when the fixed rod (31) rotates to the fixed groove (6), the position of the movable cutter (11) is fixed.
5. The VT chopper of claim 4 wherein: the movable tool rest (22) is provided with a fixed spring (61), one end of the fixed spring (61) is arranged on the movable tool rest (22), the other end of the fixed spring is arranged on the fixed rod (31), and the fixed spring (61) is used for pushing the fixed rod (31) to be abutted in the fixed groove (6).
6. The VT chopper of claim 5, wherein: one end of the fixing rod (31) close to the fixing groove (6) is provided with an abutting block (7), the abutting block (7) and the fixing rod (31) are arranged in an angle, and the abutting block (7) is used for being inserted into the fixing groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320409166.3U CN220013008U (en) | 2023-03-03 | 2023-03-03 | VT (variable speed) chopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320409166.3U CN220013008U (en) | 2023-03-03 | 2023-03-03 | VT (variable speed) chopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220013008U true CN220013008U (en) | 2023-11-14 |
Family
ID=88677186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320409166.3U Active CN220013008U (en) | 2023-03-03 | 2023-03-03 | VT (variable speed) chopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220013008U (en) |
-
2023
- 2023-03-03 CN CN202320409166.3U patent/CN220013008U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |