CN205295674U - Sword mechanism under sewing machine's automation - Google Patents
Sword mechanism under sewing machine's automation Download PDFInfo
- Publication number
- CN205295674U CN205295674U CN201521041199.9U CN201521041199U CN205295674U CN 205295674 U CN205295674 U CN 205295674U CN 201521041199 U CN201521041199 U CN 201521041199U CN 205295674 U CN205295674 U CN 205295674U
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- CN
- China
- Prior art keywords
- lower cutter
- sewing machine
- cylinder
- knife rack
- cutoff knife
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- Withdrawn - After Issue
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Abstract
The utility model provides a sword mechanism under sewing machine's automation belongs to sewing machine technical field. It has been solved and how to have realized the automatic sword down of cutter and shear the problem of action. This sewing machine includes the aircraft nose, goes up cutter and knife rest lift shaft, and this automation sword mechanism down includes cutter frame, locking device and sword cylinder down, go up the cutter and fix on the cutter frame, the cutter put up that guide structure is connected with the aircraft nose and relatively the aircraft nose slide from top to bottom, locking device links firmly with the knife rest lift shaft, the piston rod of lower sword cylinder passes through connection structure to be connected with the cutter frame, lower sword cylinder can drive the cutter and put up that decline messenger cutter puts up and locking device links firmly the locking. Through setting up cutter frame, guide structure, locking device, connection structure and lower sword cylinder to this come to realize goes up the automatic sword down of cutter and shears the action, has replaced sword or artifical shearing the under the manual operation, makes the making and shear and to go on in step of processing cloth, has improved production efficiency greatly.
Description
Technical field
This utility model belongs to sewing machine technique field, relates to the automatically lower cutter mechanism of a kind of sewing machine.
Background technology
Sewing machine is to use one or more sewing thread, forms one or more stitchings on sewing, makes the machine that one or more layers sewing interweaves or unites by a seam. The sewing function sewing goods such as fabric and leather, plastics, paper such as cotton, fiber crops, silk, hair, staple fibre, the stitching neat appearance stitched out, smooth firmly, sewing velocity is fast, easy to use.
The existing sewing machine flow process when producing is typically all first to be sewed up unprocessed cloth, then again cloth is carried out cutting, it is sewed up and two steps of cutting are separately performed, such mode of production not only complex operation, labor strength is big, and production cost is high, and production efficiency is low, the cloth stitching processed unsightly, is not suitable for and produces in batches.
Summary of the invention
The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that the automatically lower cutter mechanism of a kind of sewing machine, this utility model solves the technical problem that it is how to realize upper cutter automatically descend cutter and carry out shear action.
The purpose of this utility model can be realized by following technical proposal: the automatically lower cutter mechanism of a kind of sewing machine, described sewing machine includes head, upper cutter and carry out the knife rest lift shaft of shear action for controlling upper cutter, it is characterized in that, described automatic lower cutter mechanism includes cutoff knife rack, locking device and lower cutter cylinder, described upper cutter is fixed on cutoff knife rack, described cutoff knife rack is connected by guide frame and head and can slide up and down by relative head, described locking device is connected with knife rest lift shaft, the piston rod of described lower cutter cylinder is connected with cutoff knife rack by attachment structure, described lower cutter cylinder can drive cutoff knife rack to decline and make the connected locking of cutoff knife rack and locking device.
The operation principle of the automatically lower cutter mechanism of this sewing machine is by arranging cutoff knife rack, guide frame, locking device, attachment structure and lower cutter cylinder, realizes upper cutter with this and automatically descends cutter and carry out shear action. Specifically, cutoff knife rack is made to possess the function slided up and down by shaping-orientation structure, and connected together by the attachment structure piston rod by lower cutter cylinder and cutoff knife rack, control cutoff knife rack with this to slide up and down, when sewing machine needs sewing and shearing to be synchronously performed, upper cutter controls to drop to shearing station by lower cutter cylinder, meanwhile, in cutoff knife rack decline process, cutoff knife rack and locking device complete the locking that is connected, make knife rest lift shaft and cutoff knife rack realize being in transmission connection, make cloth to be carried out shear action when sewing machine sews with this.
In the automatically lower cutter mechanism of above-mentioned sewing machine, described locking device includes moving back lock cylinder, the lock tube connected with knife rest lift shaft, it is positioned at the upper limit position block on cutoff knife rack and the lower position block being positioned on cutoff knife rack, described upper limit position block is positioned at the top of lower position block, it is equipped with lock pin in described lock tube, described lock pin is resisted against on lower position block by spring compression, described lock pin can make the relative lock tube of lock pin slide to away from cutoff knife rack direction under the effect moving back lock cylinder, described lower cutter cylinder can drive cutoff knife rack decline to make lock pin be stuck between upper limit position block and lower position block.When sewing machine needs lower cutter to carry out shear action, lower cutter cylinder drives cutoff knife rack to decline, until lock pin sticks in the draw-in groove formed between upper limit position block and lower limit, now, upper cutter be positioned at shearing station, when cloth is sewed by sewing machine, upper cutter carries out synchronous shear action under the drive of knife rest lift shaft; When sewing machine needs the material returned, spring force effect is overcome to exit the draw-in groove formed between upper limit position block and lower limit by moving back lock cylinder control lock pin, such lock pin and cutoff knife rack unlock relation, cutoff knife rack lifting under the effect of lower cutter cylinder and attachment structure resets, so that cloth can exit.
In the automatically lower cutter mechanism of above-mentioned sewing machine, described lock pin has link, between described link and lock pin, there is the shaft shoulder, described spring housing is located on link, one end of described spring is resisted against on the shaft shoulder, the other end of described spring is resisted against on lock tube, and described link passes lock tube and is connected with moving back lock cylinder. Lock pin can slide to lock tube two ends respectively under spring and the effect moving back lock cylinder.
In the automatically lower cutter mechanism of above-mentioned sewing machine, described in move back the piston rod of lock cylinder and link are respectively fixed with and help pull a cart, be connected by stay cord between helping pull a cart described in two. By arranging in flexible stay cord so that the location arrangements moving back lock cylinder and lock pin is convenient.
In the automatically lower cutter mechanism of above-mentioned sewing machine, the height that the height that described upper limit position block protrudes towards lock pin direction protrudes towards lock pin direction more than lower position block. Being disposed to of the protrusion height of upper limit position block prevents lock pin from not blocking and then plays position limitation protection effect so that upper cutter will not continue to decline and miscellaneous part interferes.
Alternatively, in the automatically lower cutter mechanism of above-mentioned sewing machine, described locking device includes moving back lock cylinder, the lock tube connected with knife rest lift shaft, it is arranged on the lockhole on cutoff knife rack, it is equipped with lock pin in described lock tube, described lock pin has link, between described link and lock pin, there is the shaft shoulder, described link is arranged with spring, one end of described spring is resisted against on the shaft shoulder, the other end of described spring is resisted against on lock tube, described link is passed lock tube and is connected with moving back lock cylinder by connecting rod, described lock pin can make the relative lock tube of lock pin slide to away from cutoff knife rack direction under the effect moving back lock cylinder, described lower cutter cylinder can drive cutoff knife rack decline to make lock pin be stuck in described lockhole. when sewing machine needs lower cutter to carry out shear action, lower cutter cylinder drives cutoff knife rack to decline, until lock pin is sticking in lockhole, now, upper cutter is positioned at shearing station, and when cloth is sewed by sewing machine, upper cutter carries out synchronous shear action under the drive of knife rest lift shaft, when sewing machine needs the material returned, controlling lock pin overcome spring force effect to exit lockhole by moving back lock cylinder, such lock pin and cutoff knife rack unlock relation, and cutoff knife rack lifting under the effect of lower cutter cylinder and attachment structure resets, so that cloth can exit.
In the automatically lower cutter mechanism of above-mentioned sewing machine, described attachment structure includes knife rest and hooks and back-moving spring, described lower cutter cylinder be fixed on head and lower cutter cylinder piston rod down, one end that described knife rest hooks is connected in piston rod, the lower surface of the other end that described knife rest hooks is resisted against on cutoff knife rack, one end of described back-moving spring is fixed on head, and the other end of described back-moving spring is fixed on cutoff knife rack. When upper cutter needs lower cutter, the piston rod band movable knife rack of lower cutter cylinder hooks decline, and cutoff knife rack overcomes the elastic force effect of back-moving spring and declines under the effect that knife rest hooks, until to shearing station and cutoff knife rack and the connected locking of locking device, now, lower cutter cylinder disconnects source of the gas; When upper cutter needs to reset, locking device unlocks, and upper cutter is reset lifting under the effect of back-moving spring.
In the automatically lower cutter mechanism of above-mentioned sewing machine, described cutoff knife rack being fixed with location screw, the lower surface that described knife rest hooks is resisted against positioning screw and nails on, and described back-moving spring is set in positioning screw and nails on.By arranging the mode of location screw so that mechanism's easy accessibility is simple.
Alternatively, in the automatically lower cutter mechanism of above-mentioned sewing machine, described lower cutter cylinder is fixed on head, and described attachment structure includes knife rest and hooks, and one end that described knife rest hooks is connected on the piston rod, and the other end that described knife rest hooks is connected on cutoff knife rack. When upper cutter needs lower cutter, the piston rod of lower cutter cylinder drives cutoff knife rack to decline, until to shearing station and cutoff knife rack and the connected locking of locking device, now, lower cutter cylinder disconnects source of the gas; When upper cutter needs to reset, locking device unlocks, upper cutter reset lifting under piston rod drives.
In the automatically lower cutter mechanism of above-mentioned sewing machine, described guide frame includes the guide rod being vertically fixed on head, and described cutoff knife rack is set on guide rod and is slidably connected with guide rod. By arranging guide rod to realize the guiding of cutoff knife rack oscilaltion, and simple and reliable for structure.
Alternatively, in the automatically lower cutter mechanism of above-mentioned sewing machine, described guide frame includes vertical two pieces of slide plates on head, and two described slide plates lay respectively at the both sides of cutoff knife rack, having the chute that slide plate is corresponding on described cutoff knife rack, described chute is connected with slide plate slides. The guiding realizing cutoff knife rack oscilaltion is coordinated by slide plate and chute.
Compared with prior art, the automatic lower cutter mechanism of this sewing machine has the advantage that by arranging cutoff knife rack, guide frame, locking device, attachment structure and lower cutter cylinder, realize upper cutter with this automatically descend cutter and carry out shear action, instead of under manual operation cutter or manually shear, make the sewing of processing cloth and shear and can be synchronously performed, substantially increasing production efficiency.
Accompanying drawing explanation
Fig. 1 is the assembling structural representation of this automatic lower cutter mechanism and head.
Fig. 2 is the structural representation in this one direction of automatic lower cutter mechanism.
Fig. 3 is the structural representation in this another direction of automatic lower cutter mechanism.
Fig. 4 is the planar structure schematic diagram of this automatic lower cutter mechanism.
Fig. 5 is the detonation configuration schematic diagram of this automatic lower cutter mechanism.
Fig. 6 is the structural representation of cutoff knife rack in this automatic lower cutter mechanism.
In figure, 1, head; 2, upper cutter; 3, knife rest lift shaft; 4, cutoff knife rack; 5, lower cutter cylinder; 6, lock cylinder is moved back; 7, lock tube; 8, upper limit position block; 9, lower position block; 10, lock pin; 101, link; 102, the shaft shoulder; 11, spring; 12, help pull a cart; 13, stay cord; 14, knife rest hooks; 15, back-moving spring; 16, location screw; 17, guide rod.
Detailed description of the invention
The following is specific embodiment of the utility model and in conjunction with accompanying drawing, the technical solution of the utility model is further described, but this utility model is not limited to these embodiments.
Embodiment one:
This automatically lower cutter mechanism include cutoff knife rack 4, lower cutter cylinder 5, move back lock cylinder 6, lock tube 7, upper limit position block 8, lower position block 9, lock pin 10, link 101, the shaft shoulder 102, spring 11, help pull a cart 12, stay cord 13, knife rest hook 14, back-moving spring 15, location screw 16, guide rod 17.
Specifically, as it is shown in figure 1, sewing machine includes head 1, upper cutter 2 and carries out the knife rest lift shaft 3 of shear action for controlling upper cutter 2. This automatic lower cutter mechanism includes cutoff knife rack 4, locking device and lower cutter cylinder 5. Upper cutter 2 is fixed on cutoff knife rack 4, and cutoff knife rack 4 passes through guide frame and connects with head 1 and can slide up and down by relative head 1.Guide frame includes the guide rod 17 being vertically fixed on head 1, and cutoff knife rack 4 is set on guide rod 17 and is slidably connected with guide rod 17.
As shown in Figures 2 and 3, the piston rod of lower cutter cylinder 5 is connected with cutoff knife rack 4 by attachment structure. Lower cutter cylinder 5 be fixed on head 1 and lower cutter cylinder 5 piston rod down. Attachment structure includes knife rest and hooks 14 and back-moving spring 15, and knife rest hooks one end of 14 and is connected in piston rod, and cutoff knife rack 4 is fixed with location screw 16, and knife rest hooks the lower surface of the other end of 14 and is resisted against on the screw 16 of location. One end of back-moving spring 15 is fixed on head 1, and the other end of back-moving spring 15 is set on the screw 16 of location. Lower cutter cylinder 5 can drive cutoff knife rack 4 to decline and make the connected locking of cutoff knife rack 4 and locking device.
As shown in Figure 4, Figure 5 and Figure 6, lock tube 7, the upper limit position block 8 being positioned on cutoff knife rack 4 and the lower position block 9 being positioned on cutoff knife rack 4 that locking device includes moving back lock cylinder 6 and knife rest lift shaft 3 is connected. Upper limit position block 8 is positioned at the top of lower position block 9, and the height that the height that protrudes towards lock pin 10 direction of upper limit position block 8 protrudes towards lock pin 10 direction more than lower position block 9. Being equipped with lock pin 10 in lock tube 7, lock pin 10 has link 101, have the shaft shoulder 102 between link 101 and lock pin 10, spring 11 is set on link 101, and one end of spring 11 is resisted against on the shaft shoulder 102, and the other end of spring 11 is resisted against on lock tube 7. Move back the piston rod of lock cylinder 6 and link 101 are respectively fixed with and help pull a cart 12, help pull a cart for two and be connected by stay cord 13 between 12. Lock pin 10 can make the relative lock tube 7 of lock pin 10 slide to away from cutoff knife rack 4 direction under the effect moving back lock cylinder 6. Lower cutter cylinder 5 can drive cutoff knife rack 4 decline to make lock pin 10 be stuck between upper limit position block 8 and lower position block 9.
This work process that lower cutter mechanism controls upper cutter 2 carries out shearing automatically is as follows: original state, and upper cutter 2 is away from needle plate; When sewing machine needs lower cutter to carry out shear action, the piston rod controlling lower cutter cylinder 5 declines, knife rest hooks 14 relative guide rods 17 slips of drive cutoff knife rack 4 and declines, until lock pin 10 under the effect of spring 11 elastic force along with the slip of cutoff knife rack 4 sticks between upper limit position block 8 and lower limit, now, the position of upper cutter 2 is in shearing station and is in transmission connection with knife rest lift shaft 3, and when cloth is sewed by sewing machine, upper cutter 2 carries out synchronous shear action under the drive of knife rest lift shaft 3; When sewing machine needs the material returned, controlling to move back lock cylinder 6 pulls stretching to make lock pin 10 overcome spring 11 elastic force effect to exit the draw-in groove formed between upper limit position block 8 and lower limit, now, cutoff knife rack 4 lifting under the effect of back-moving spring 15 resets, so that cloth can exit.
Embodiment two:
Technical scheme in the present embodiment is essentially identical with the technical scheme in embodiment one, it is different in that, in the present embodiment, locking device includes moving back lock cylinder 6, the lock tube 7 connected with knife rest lift shaft 3, it is arranged on the lockhole on cutoff knife rack 4, lock pin 10 it is equipped with in lock tube 7, lock pin 10 has link 101, there is between link 101 and lock pin 10 shaft shoulder 102, link 101 is arranged with spring 11, one end of spring 11 is resisted against on the shaft shoulder 102, the other end of spring 11 is resisted against on lock tube 7, link 101 is passed lock tube 7 and is connected with moving back lock cylinder 6 by connecting rod, lock pin 10 can make the relative lock tube 7 of lock pin 10 slide to away from cutoff knife rack 4 direction under the effect moving back lock cylinder 6, lower cutter cylinder 5 can drive cutoff knife rack 4 decline to make lock pin 10 be stuck in lockhole.
Specific embodiment described herein is only to this utility model spirit explanation for example. Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount the scope that appended claims is defined.
Although more employ head 1, upper cutter 2, knife rest lift shaft 3, cutoff knife rack 4, lower cutter cylinder 5 herein, move back lock cylinder 6, lock tube 7, upper limit position block 8, lower position block 9, lock pin 10, link 101, the shaft shoulder 102, spring 11, help pull a cart 12, stay cord 13, knife rest hook 14, back-moving spring 15, the location term such as screw 16, guide rod 17, but are not precluded from using the probability of other term. These terms are used to be only used to describe and explain essence of the present utility model more easily; It is all contrary with this utility model spirit for being construed as any additional restriction.
Claims (10)
1. the automatically lower cutter mechanism of a sewing machine, described sewing machine includes head (1), upper cutter (2) and be used for controlling upper cutter (2) and carry out the knife rest lift shaft (3) of shear action, it is characterized in that, described automatic lower cutter mechanism includes cutoff knife rack (4), locking device and lower cutter cylinder (5), described upper cutter (2) is fixed on cutoff knife rack (4), described cutoff knife rack (4) is connected by guide frame and head (1) and can slide up and down by relative head (1), described locking device is connected with knife rest lift shaft (3), the piston rod of described lower cutter cylinder (5) is connected with cutoff knife rack (4) by attachment structure, described lower cutter cylinder (5) can drive cutoff knife rack (4) to decline and make the connected locking of cutoff knife rack (4) and locking device.
2. the automatically lower cutter mechanism of sewing machine according to claim 1, it is characterized in that, described locking device includes moving back lock cylinder (6), the lock tube (7) connected with knife rest lift shaft (3), it is positioned at the upper limit position block (8) on cutoff knife rack (4) and the lower position block (9) being positioned on cutoff knife rack (4), described upper limit position block (8) is positioned at the top of lower position block (9), lock pin (10) it is equipped with in described lock tube (7), described lock pin (10) is compressed by spring (11) and is resisted against on lower position block (9), described lock pin (10) can make lock pin (10) lock tube (7) relatively slide to away from cutoff knife rack (4) direction under the effect moving back lock cylinder (6), described lower cutter cylinder (5) can drive cutoff knife rack (4) decline to make lock pin (10) be stuck between upper limit position block (8) and lower position block (9).
3. the automatically lower cutter mechanism of sewing machine according to claim 2, it is characterized in that, described lock pin (10) has link (101), there is between described link (101) and lock pin (10) shaft shoulder (102), described spring (11) is set on link (101), one end of described spring (11) is resisted against on the shaft shoulder (102), the other end of described spring (11) is resisted against on lock tube (7), and described link (101) passes lock tube (7) and is connected with moving back lock cylinder (6).
4. the automatically lower cutter mechanism of sewing machine according to claim 3, it is characterized in that, the described piston rod moving back lock cylinder (6) and link (101) are respectively fixed with help pull a cart (12), help pull a cart described in two and be connected by stay cord (13) between (12).
5. the automatically lower cutter mechanism of sewing machine according to claim 2, it is characterized in that, the height that the height that described upper limit position block (8) protrudes towards lock pin (10) direction protrudes towards lock pin (10) direction more than lower position block (9).
6. the automatically lower cutter mechanism of sewing machine according to claim 1, it is characterized in that, described locking device includes moving back lock cylinder (6), the lock tube (7) connected with knife rest lift shaft (3), it is arranged on the lockhole on cutoff knife rack (4), lock pin (10) it is equipped with in described lock tube (7), described lock pin (10) has link (101), there is between described link (101) and lock pin (10) shaft shoulder (102), described link (101) is arranged with spring (11), one end of described spring (11) is resisted against on the shaft shoulder (102), the other end of described spring (11) is resisted against on lock tube (7), described link (101) is passed lock tube (7) and is connected with moving back lock cylinder (6) by connecting rod, described lock pin (10) can make lock pin (10) lock tube (7) relatively slide to away from cutoff knife rack (4) direction under the effect moving back lock cylinder (6), described lower cutter cylinder (5) can drive cutoff knife rack (4) decline to make lock pin (10) be stuck in described lockhole.
7. the automatically lower cutter mechanism of sewing machine as claimed in any of claims 1 to 6, it is characterized in that, described attachment structure includes knife rest and hooks (14) and back-moving spring (15), described lower cutter cylinder (5) be fixed on that head (1) is upper and the piston rod of lower cutter cylinder (5) down, described knife rest hooks the one end of (14) and is connected in piston rod, the lower surface of the other end that described knife rest hooks (14) is resisted against on cutoff knife rack (4), one end of described back-moving spring (15) is fixed on head (1), the other end of described back-moving spring (15) is fixed on cutoff knife rack (4).
8. the automatically lower cutter mechanism of the sewing machine according to any one in claim 7, it is characterized in that, described cutoff knife rack (4) is fixed with location screw (16), described knife rest hooks the lower surface of (14) and is resisted against on location screw (16), and described back-moving spring (15) is set on location screw (16).
9. the automatically lower cutter mechanism of sewing machine as claimed in any of claims 1 to 6, it is characterized in that, described lower cutter cylinder (5) is fixed on head (1), described attachment structure includes knife rest and hooks (14), described knife rest hooks the one end of (14) and is connected on the piston rod, and described knife rest hooks the other end of (14) and is connected on cutoff knife rack (4).
10. the automatically lower cutter mechanism of sewing machine as claimed in any of claims 1 to 6, it is characterized in that, described guide frame includes the guide rod (17) being vertically fixed on head (1), and described cutoff knife rack (4) is set in guide rod (17) and above and is slidably connected with guide rod (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041199.9U CN205295674U (en) | 2015-12-15 | 2015-12-15 | Sword mechanism under sewing machine's automation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041199.9U CN205295674U (en) | 2015-12-15 | 2015-12-15 | Sword mechanism under sewing machine's automation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205295674U true CN205295674U (en) | 2016-06-08 |
Family
ID=56431980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521041199.9U Withdrawn - After Issue CN205295674U (en) | 2015-12-15 | 2015-12-15 | Sword mechanism under sewing machine's automation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205295674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420943A (en) * | 2015-12-15 | 2016-03-23 | 浙江宝宇缝纫机有限公司 | Automatic cutting mechanism of sewing machine |
-
2015
- 2015-12-15 CN CN201521041199.9U patent/CN205295674U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420943A (en) * | 2015-12-15 | 2016-03-23 | 浙江宝宇缝纫机有限公司 | Automatic cutting mechanism of sewing machine |
| CN105420943B (en) * | 2015-12-15 | 2018-09-21 | 浙江宝宇缝纫机有限公司 | A kind of automatic lower cutter mechanism of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160608 Effective date of abandoning: 20180921 |
|
| AV01 | Patent right actively abandoned |