CN2751045Y - Backstitch and normal-stitch mechanism for sewing machine - Google Patents
Backstitch and normal-stitch mechanism for sewing machine Download PDFInfo
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- CN2751045Y CN2751045Y CN 200420109876 CN200420109876U CN2751045Y CN 2751045 Y CN2751045 Y CN 2751045Y CN 200420109876 CN200420109876 CN 200420109876 CN 200420109876 U CN200420109876 U CN 200420109876U CN 2751045 Y CN2751045 Y CN 2751045Y
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- pendulum rod
- needle
- needle distance
- distance pendulum
- rod
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Abstract
The utility model relates to a backstitch and normal-stitch mechanism for a sewing machine. A pneumatic transmission mechanism is used, and a backstitch and normal-stitch connecting rod and a tension spring stud of a needle pitch pendulum rod are connected with a manual backstitch and normal-stitch mechanism. The mechanism makes a sewing machine have a pneumatic and a manual functions in the processes of normal stitch and backstitch. The utility model has the advantages of flexible, convenient and easy operation, operator's unique manual operation improvement in the operation process, operator's labor intensity reduction, backstitch and normal-stitch speed increasing, backstitch and normal-stitch smoothness improvement and production efficiency improvement, and is particularly suitable for an ultra-thick material sewing machine.
Description
Technical field
The utility model relates to a kind of flat comprehensive feeding super-thick material flat seam machine.Particularly a kind of pneumatic, dual-use manual backward-forward seam mechanism of Sewing machines.
Background technology
The tradition Sewing machines manually falls and sees also Fig. 1 and Fig. 2 along the structure of stitching.Wherein Fig. 1 is that traditional Sewing machines is manual along the three-dimensional combination figure of sewing mechanism, and Fig. 2 is the manually three-dimensional exploded view of suitable sewing mechanism of traditional Sewing machines.Its syndeton is: needle distance pendulum rod dampened disk 101 is fixed on the casing mounting plane by needle distance pendulum rod dampened disk holding screw 102.Needle distance pendulum rod tension spring stud nut 109 is spun on the needle distance pendulum rod tension spring stud 108, again needle distance pendulum rod tension spring stud 108 is spun on the needle distance pendulum rod 103, and screw needle distance pendulum rod tension spring stud nut 109.Install needle distance pendulum rod extension spring 110, then needle distance pendulum rod 103 is enclosed within on the needle distance pendulum rod dampened disk 101, by needle distance pendulum rod baffle plate screw 105 needle distance pendulum rod baffle plate 104 is installed on the needle distance pendulum rod dampened disk 101 again, needle distance pendulum rod adjusting bolt 106 is spun on the needle distance pendulum rod 103, needle gage is housed on the needle distance pendulum rod adjusting bolt 106 regulates limited block (among the figure draw in the end), needle gage regulating handle 107 is spun on the needle distance pendulum rod adjusting bolt 106 also tightens again with needle gage regulating handle nut 111.Needle gage connecting rod eccentric hinge axle 112 is installed on the needle distance pendulum rod 103, is undertaken fastening by needle gage connecting rod eccentric hinge axle screw 117.Needle gage connecting rod 113 is enclosed within on needle gage connecting rod eccentric hinge axle 112 parts, and tooth fork hinge axis 114 is tightened on the tooth fork 115, and is tightened by tooth fork hinge axis nut 116, tooth fork hinge axis 114 is enclosed within the hole of needle gage connecting rod 113 again.
The implementation procedure that above-mentioned traditional Sewing machines manually falls along seam is: when operator's hand by needle gage regulating handle 107 when pressing down, needle distance pendulum rod 103 serves as the rotation initial point with needle distance pendulum rod dampened disk 101, carry out clockwise rotatablely moving, needle distance pendulum rod tension spring stud 108 is up motion just, needle distance pendulum rod extension spring 110 is owing to the active force that is subjected to up draws back thereupon, because needle distance pendulum rod 103 is back and forth rotary oscillation up and down, driven moving back and forth of tooth fork 115, realization backstitches action, under nature, Sewing machines is in the action along seam.
Above-mentioned traditional Sewing machines manually falls along being sewn in the operating process because the active force of needle distance pendulum rod extension spring 110 is bigger, make the operator when backstitching work to needle gage regulating handle 107 when pressing down, the force rate of using is bigger, cause easily and make operating personnel's fatigue, inefficiency falls along phenomenons such as seam slow movements.
Summary of the invention
In order to overcome the problem that exists in the above-mentioned technology formerly, carried out the design of hommization, the purpose of this utility model provides a kind of pneumatic, manual backward-forward seam mechanism of Sewing machines, have simple, convenient, reduce labor intensity of operating personnel greatly, improve the speed and the operating efficiency of falling along the seam action.
The utility model is that original manual backward-forward seam mechanism is improved to pneumatic, dual-use manual backward-forward seam mechanism for this technical scheme of taking, one sets of transmission mechanism of pneumatic usefulness is installed on the back assigned address of casing, makes Sewing machines in the process of falling, have two kinds of functions along seam.Concrete structure is that the piston rod top of cylinder links to each other with the connecting rod joint, the connecting rod joint with fall along being connected by connecting pin between the seam connecting rod, and on the card of the two ends of connecting pin E type back-up ring.Fix by mounting screw and spring washer between cylinder mount pad upper end and the cylinder mounting plane.The lower end of cylinder mount pad is installed in casing back assigned address, is fixed by mounting screw and spring washer.Fall along inserting connecting pin between seam connecting rod and the needle distance pendulum rod tension spring stud, use the connecting pin holding screw fastening again.The needle distance pendulum rod tension spring stud then manually falls with Sewing machines and links to each other along the mechanism of stitching.
The beneficial effects of the utility model are a sets of transmission mechanism of pneumatic usefulness is loaded on the back of casing, increased the stationarity of machine when falling along seam, strengthened the rigidity between the member, because member good rigidly, then fall agile, accurate along seam, improved sewing efficiency greatly, satisfied widespread demand the super-thick material Sewing machines.
Description of drawings
Fig. 1 is the three-dimensional combination figure of the manual backward-forward seam mechanism of traditional Sewing machines.
Fig. 2 is the three-dimensional exploded view of the manual backward-forward seam mechanism of traditional Sewing machines.
Fig. 3 is that the utility model Sewing machines is pneumatic, the three-dimensional combination figure of manual suitable Sewing machines.
Fig. 4 is that the utility model Sewing machines is pneumatic, the three-dimensional exploded view of manual backward-forward seam mechanism.
Fig. 5 is that traditional Sewing machines manually falls along the mechanism's rough schematic that stitches.
Fig. 6 is that the utility model Sewing machines is pneumatic, manual along the mechanism's rough schematic that stitches.
The specific embodiment
Pneumatic below in conjunction with description of drawings the utility model Sewing machines, manual along the structure of stitching.
Consult Fig. 3, Fig. 4, Fig. 6, further specify as follows structure of the present utility model and mechanism driving:
The piston rod top of cylinder 1 links to each other with connecting rod joint 6, connecting rod joint 6 with fall along being connected by connecting pin 7 between the seam connecting rod 9, and on the card of the two ends of connecting pin 7 E type back-up ring 8, fixing between cylinder mount pad 22 upper ends and cylinder 1 mounting plane by mounting screw 4 and spring washer 5.Then the lower surface of cylinder mount pad 22 is installed in the assigned address at casing back, fixes by mounting screw 2 and spring washer 3.
Needle distance pendulum rod dampened disk 17 is fixed on the casing designated mounting plane by needle distance pendulum rod dampened disk holding screw 18.Needle distance pendulum rod tension spring stud nut 11 is spun on the needle distance pendulum rod tension spring stud 10, again needle distance pendulum rod tension spring stud 10 is spun on the needle distance pendulum rod 14, and screw needle distance pendulum rod tension spring stud nut 11, install needle distance pendulum rod extension spring 21, then needle distance pendulum rod 14 is enclosed within on the needle distance pendulum rod dampened disk 17, by needle distance pendulum rod baffle plate screw 20 needle distance pendulum rod baffle plate 19 is installed on the needle distance pendulum rod dampened disk 17 again, needle distance pendulum rod adjusting bolt 15 is spun on the needle distance pendulum rod 14, needle gage is housed on the needle distance pendulum rod adjusting bolt 15 regulates limited block (among the figure draw in the end), needle gage regulating handle 16 is spun on the needle distance pendulum rod adjusting bolt 15 also tightens again with needle gage regulating handle nut 23.At last, fall, carry out fastening with connecting pin holding screw 13 again along inserting connecting pin 12 between seam connecting rod 9 and the needle distance pendulum rod tension spring stud 10.Needle gage connecting rod eccentric hinge axle 24 is installed on the needle distance pendulum rod 14, is undertaken fastening by needle gage connecting rod eccentric hinge axle screw 29.Needle gage connecting rod 25 is enclosed within on the needle gage connecting rod eccentric hinge axle 24, and tooth fork hinge axis 26 is tightened on the tooth fork 27, and is tightened by tooth fork hinge axis nut 28, tooth fork hinge axis 26 is set on the needle gage connecting rod 25 again.
Consult Fig. 3, structure shown in Figure 4, its implementation procedure is: when the piston rod of cylinder 1 is upwards done the time spent, fall to drive needle distance pendulum rod tension spring studs 10 along the connecting pin 12 in seam connecting rod 9 elongated slots and move upward, needle distance pendulum rod extension spring 21 is opened.Connecting rod joint 6 with fall along being connected by connecting pin 7 between the seam connecting rod 9, mainly be in motion process, to play free active action, avoid cylinder phenomenon in motion process, to occur suppressing, because the upwards effect of cylinder piston rod, thereby having driven with dampened disk 17 serves as that needle distance pendulum rod 14 rotations of rotating initial point swing back and forth, be subjected to the swing effect, also drive the swing of tooth fork 27, that has so just realized Sewing machines pneumaticly backstitches action.When the piston rod of cylinder is done the time spent downwards, be subjected to the contraction of needle distance pendulum rod extension spring 21, needle distance pendulum rod tension spring stud 10 moves downward, having driven with dampened disk 17 serves as that needle distance pendulum rod 14 rotations of rotating initial point swing back and forth, be subjected to the swing effect, also drive the swing of tooth fork 27, so just realized the pneumatic of Sewing machines along the seam action.
When the operator needs manual operation, handle is down exerted pressure by needle gage regulating handle 16, needle distance pendulum rod 14 is being an initial point with needle distance pendulum rod dampened disk 17, carry out clockwise rotatablely moving, connecting pin 12 on the needle distance pendulum rod tension spring stud 10 can move up and down in falling along seam connecting rod 9 elongated slots, in manual, do not influence pneumatic backward-forward seam mechanism, needle distance pendulum rod extension spring 21 is owing to the active force that is subjected to up draws back thereupon, having driven with dampened disk 17 serves as that needle distance pendulum rod 14 rotations of rotating initial point swing back and forth, be subjected to the swing effect, also drive the swing of tooth fork 27, realize backstitching action, under nature, Sewing machines is in the action along seam.Thereby provide a kind of backward-forward seam mechanism of pneumatic, dual-use manual of Sewing machines.
Claims (1)
1, a kind of backward-forward seam mechanism of Sewing machines is the improvement of the manual backward-forward seam mechanism of traditional Sewing machines, and its needle distance pendulum rod dampened disk (17) is fixed on the casing assigned address by needle distance pendulum rod dampened disk holding screw (18); Needle distance pendulum rod tension spring stud nut (11) is spun on the needle distance pendulum rod tension spring stud (10), and needle distance pendulum rod tension spring stud (10) is spun on the needle distance pendulum rod (14), and screws needle distance pendulum rod tension spring stud nut (11); Go up installation needle distance pendulum rod extension spring (21) at needle distance pendulum rod tension spring stud (10), needle distance pendulum rod (14) is enclosed within on the needle distance pendulum rod dampened disk (17), by needle distance pendulum rod baffle plate screw (20) needle distance pendulum rod baffle plate (19) is installed on the needle distance pendulum rod dampened disk (17) again, needle distance pendulum rod adjusting bolt (15) is spun on the needle distance pendulum rod (14), and needle gage regulating handle (16) is spun on needle distance pendulum rod adjusting bolt (15) and goes up and tighten with needle gage regulating handle nut (23); Needle gage connecting rod eccentric hinge axle (24) is installed on the needle distance pendulum rod (14), and is fastening by needle gage connecting rod eccentric hinge axle screw (29); Needle gage connecting rod (25) is enclosed within on the needle gage connecting rod eccentric hinge axle (24), and tooth fork hinge axis (26) is tightened on the tooth fork (27), and is tightened by tooth fork hinge axis nut (28), and tooth fork hinge axis (26) is enclosed within the hole of needle gage connecting rod (25); It is characterized in that the piston rod top of cylinder (1) links to each other with connecting rod joint (6), connecting rod joint (6) with fall along being connected by connecting pin (7) between the seam connecting rod (9), and on the two ends card of connecting pin (7) E type back-up ring (8); Fixing between cylinder mount pad (22) upper end and cylinder (1) mounting plane by mounting screw (4) and spring washer (5); The lower surface of cylinder mount pad (22) is installed in casing back assigned address, and is fixing by mounting screw (2) and spring washer (3); Fall along inserting connecting pin (12) between seam connecting rod (9) and the needle distance pendulum rod tension spring stud (10), use connecting pin holding screw (13) fastening again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109876 CN2751045Y (en) | 2004-11-15 | 2004-11-15 | Backstitch and normal-stitch mechanism for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109876 CN2751045Y (en) | 2004-11-15 | 2004-11-15 | Backstitch and normal-stitch mechanism for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2751045Y true CN2751045Y (en) | 2006-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109876 Expired - Fee Related CN2751045Y (en) | 2004-11-15 | 2004-11-15 | Backstitch and normal-stitch mechanism for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2751045Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480644A (en) * | 2014-11-07 | 2015-04-01 | 浙江宝石机电股份有限公司 | Control method for free switching of needle tracking |
| CN105821597A (en) * | 2016-05-23 | 2016-08-03 | 浙江美机缝纫机有限公司 | Automatic presser foot lifting and backward and forward sewing device of sewing machine and sewing machine |
-
2004
- 2004-11-15 CN CN 200420109876 patent/CN2751045Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480644A (en) * | 2014-11-07 | 2015-04-01 | 浙江宝石机电股份有限公司 | Control method for free switching of needle tracking |
| CN105821597A (en) * | 2016-05-23 | 2016-08-03 | 浙江美机缝纫机有限公司 | Automatic presser foot lifting and backward and forward sewing device of sewing machine and sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060111 Termination date: 20101115 |