CN201560307U - Installation structure for sensor at machine needle position of sewing machine - Google Patents
Installation structure for sensor at machine needle position of sewing machine Download PDFInfo
- Publication number
- CN201560307U CN201560307U CN2009202730408U CN200920273040U CN201560307U CN 201560307 U CN201560307 U CN 201560307U CN 2009202730408 U CN2009202730408 U CN 2009202730408U CN 200920273040 U CN200920273040 U CN 200920273040U CN 201560307 U CN201560307 U CN 201560307U
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- crank
- connecting rod
- screw
- shank
- sewing machine
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Abstract
The utility model relates to an installation structure for a sensor at the machine needle position of a sewing machine, comprising a needle rod connected with a machine needle, a needle rod sleeve, a sliding block arranged in a guide rail, a connecting rod and a crank, wherein the connecting rod is connected with the crank by a crank screw; and the connecting rod is connected with the sliding block; and the needle rod is sheathed with a connector which is connected with the sliding block. When the crank drives the connecting rod to lead the sliding block connected with the connecting rod to move vertically under the limit of the guide rail, the needle rod is driven to move vertically. The crank screw is arranged to be a magnetic screw; and when the crank rotates, the crank screw does circular motion simultaneously, and the upper end and the lower end on the motion track are the upper position and the lower position of the machine needle and are respectively provided with a Hall sensor. The installation position of the sensor effectively avoids the cumulative errors brought by the other indirect signals; in addition, the sensor is arranged at the position of the machine head, thus being incapable of being disturbed and damaged unconsciously to influence the normal work.
Description
Technical field
The utility model relates to a kind of mounting structure of position sensors of sewing machine needle.
Background technology
At present, the industrial sewing machine on the market all can be provided with the sensor that is used to survey the sewing machine needle upper-lower position.At the Sewing machines that is driven by belt pulley, its position sensor mostly is to be set directly on the belt pulley of Sewing machines arbor.Position sensor turns to the position of certain angle by the Sewing machines arbor, is determined the upper-lower position of eedle by handwheel; At the Sewing machines of the computer servo-drive system that has direct-drive type, its position sensor is installed on the handwheel of servomotor motor shaft, is determined the upper-lower position of eedle by this part by the rotation of motor shaft.But these position sensors all do not have directly corresponding the upper-lower position of eedle, and indirect detection is easy to exist cumulative errors, and these handwheels or belt pulley are easy to be interfered in addition or damage unintentionally, and influence normal output signal.
The utility model content
The purpose of this utility model is to provide a kind of mounting structure that can reduce the eedle position sensor of sewing machine needle upper and lower position cumulative errors.
In order to reach above purpose, the scheme that the utility model adopts is:
The mounting structure of position sensors of sewing machine needle comprises: the bottom be connected with eedle shank, the shank cover that links to each other with the Sewing machines casing, be arranged on can slide up and down in the guide rail slide block, connecting rod and the crank that links to each other with machine spindle.Described shank cover is set on the described shank, described shank can move up and down in the shank cover, described connecting rod is connected with described slide block, on described shank, be fixed with joint, described joint is connected with described slide block, and described crank is connected by a crank screw with connecting rod.
When machine spindle rotates, described crank drives described connecting rod by described crank screw, the slide block that is connected with described connecting rod is moved up and down under described guide rail spacing, in described shank overlaps, move up and down thereby drive the shank that is connected with described slide block.
Described crank screw is set to have the screw of magnetic, when described crank rotates, described crank screw moves in a circle simultaneously, and the upper end of its movement locus is last position, the lower end of described eedle is the upper/lower positions of described eedle, Hall element is installed at position and upper/lower positions place respectively on described, and the signal output of the described Hall element of two positions is respectively just corresponding to the last position and the upper/lower positions of described eedle.
Can be preferably in the technique scheme, the screw that has magnetic can be made of two kinds of methods: the material of described crank screw is the magnetic steel; Described crank screw is provided with two parts: described crank screw is provided with two parts: a part is a normal screws for magnetic rings, another part, and described normal screws connects described connecting rod and crank, and described magnetic rings is set on this normal screws.
In addition, also can be preferably in the technique scheme, be separately fixed on the fixed head on two described Hall elements, described fixed head is installed in the Sewing machines body, and the position of two described Hall elements is corresponding one by one mutually with the last position and the upper/lower positions of the circular trace of described crank screw.
The utility model compared with prior art has following advantage: the utility model directly is associated the installation site of Hall element with the connecting rod that drives the sewing machine needle motion, be installed in the position on shank cover next door, transducing signal can directly correspond to the upper and lower position of eedle motion, the cumulative errors of effectively having avoided other indirect signals to bring; In addition, sensor is installed in the head place, can not be interfered and damages unintentionally and influence operate as normal.
Description of drawings
Accompanying drawing 1 is the motion principle figure of sewing machine needle;
Accompanying drawing 2 is the movement locus figure of crank screw of the present utility model;
Accompanying drawing 3 is the schematic diagram of fixed head of the present utility model;
Accompanying drawing 4 is a head of sewing machine place end view;
Accompanying drawing 5 is a magnetic screw schematic diagram of the present utility model;
Accompanying drawing 6 is the connection diagram of normal screws of the present utility model and magnetic rings;
Wherein: 1, eedle; 2, shank; 3, joint; 4, slide block; 5, guide rail; 6, connecting rod; 7, crank; 8, crank screw; 9, magnetic screw; 10, magnetic rings; 11, normal screws; 12, fixed head; 13, first screw hole; 14, head place end face; 15, second screw hole; 16, installing hole; 17, thread take-up tension lever protective cover; 18, upper/lower positions; 19, go up the position; 20, shank cover.
The specific embodiment
Describe concrete structure of the present utility model below with reference to accompanying drawings in detail:
Shown in accompanying drawing 1: a kind of mounting structure of position sensors of sewing machine needle comprises: the bottom is connected with the shank 2 of eedle 1, the shank that links to each other with the Sewing machines casing overlaps 20, is arranged on the crank 7 that can slide up and down slide block 4, connecting rod 6 and link to each other with machine spindle in the guide rail 5.Shank cover 20 is set on the shank 2, and shank 2 can overlap in 20 at shank and move up and down, and connecting rod 6 is connected with slide block 4, is fixed with joint 3 on shank 2, and joint 3 is connected with slide block 4, and crank 7 is connected by a crank screw 8 with connecting rod 6.
When machine spindle rotated, crank 7 was by crank screw 8 drivening rods 6, and 4 of the cunnings that are connected with connecting rod 6 are moved up and down down the spacing of guide rail 5, overlapped in 20 at shank and moved up and down thereby drive the shank 2 that is connected with slide block 4.
At first, the screw that has magnetic can be made of two kinds of methods: 1, crank screw 8 with the magnetic screw 9 of magnetic steel preparation, is directly used in connection connecting rod 6 and crank 7 with magnetic screw 9 for all, and is shown with reference to accompanying drawing 5; 2, crank screw 8 is provided with two parts: a part is magnetic rings 10; Another part is a normal screws 11, and magnetic rings 10 is set on the common spiral shell 11, makes it have magnetic, and cover is magnetic badly 10 normal screws connection connecting rod 6 and crank 7 are shown with reference to accompanying drawing 6 again.
Secondly, on head of sewing machine place end face 14, generally all be provided with thread take-up tension lever protective cover 17, installing hole 16 and three second screw holes 15, shown with reference to accompanying drawing 4.
At last, Hall element is fixed on the fixed head 12, its position is corresponding with the last position 19 and the upper/lower positions 18 of the circular trace of crank screw 8, and is shown with reference to accompanying drawing 3.Offer on the fixed head 12 three with head of sewing machine place end face 14 on second screw hole, 15 corresponding first screw holes 13.Fixed head 12 is locked with second screw hole 15 on the head place end face 14 mutually by first screw hole 13, it is securely fixed on the Sewing machines body, the lead-out wire of the Hall element installing hole 16 by thread take-up tension lever protective cover 17 is led on the wiring board of receiving terminal along thread take-up tension lever protective cover 17, and finish installation.
The foregoing description only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed in the protection domain of the present utility model.
Claims (4)
1. the mounting structure of a position sensors of sewing machine needle, comprise: the bottom is connected with the shank (2) of eedle (1), the shank cover (20) that links to each other with the Sewing machines casing, be arranged on the slide block (4) that can slide up and down in the guide rail (5), connecting rod (6) and the crank that links to each other with machine spindle (7), described shank cover (20) is set on the described shank (2), described shank can move up and down in shank cover (20), described connecting rod (6) is connected with described slide block (4), on described shank (2), be fixed with joint (3), described joint (3) is connected with described slide block (4), described crank (7) is connected by a crank screw (8) with connecting rod (6)
When machine spindle rotates, described crank (7) drives described connecting rod (6) by described crank screw (8), the slide block (4) that is connected with described connecting rod (6) is moved up and down under described guide rail (5) spacing, thereby driving the shank (2) that is connected with described slide block (4) moves up and down in described shank cover (20)
It is characterized in that: described crank screw (8) is set to have the screw of magnetic, when described crank (7) rotates, described crank screw (8) moves in a circle simultaneously, and the upper end of its movement locus is the last position (19) of described eedle (1), the upper/lower positions (18) that the lower end is described eedle (1), position (19) and upper/lower positions (18) locate to install respectively Hall element on described, and the signal output of the described Hall element of two positions is respectively just corresponding to the last position and the upper/lower positions of described eedle (1).
2. the mounting structure of position sensors of sewing machine needle according to claim 1, it is characterized in that: the material of described crank screw (8) is the magnetic steel.
3. the mounting structure of position sensors of sewing machine needle according to claim 1, it is characterized in that: described crank screw (8) is provided with two parts: a part is normal screws (11) for magnetic rings (10), another part, described normal screws (11) connects described connecting rod (6) and crank (7), and described magnetic rings (10) is set on this normal screws (11).
4. the mounting structure of position sensors of sewing machine needle according to claim 1, it is characterized in that: be separately fixed on two described Hall elements on the fixed head (12), described fixed head (12) is installed on the head of sewing machine place end face (14), and the position of two described Hall elements is corresponding one by one mutually with the last position (19) and the upper/lower positions (18) of the circular trace of described crank screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202730408U CN201560307U (en) | 2009-11-25 | 2009-11-25 | Installation structure for sensor at machine needle position of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202730408U CN201560307U (en) | 2009-11-25 | 2009-11-25 | Installation structure for sensor at machine needle position of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201560307U true CN201560307U (en) | 2010-08-25 |
Family
ID=42625453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202730408U Expired - Lifetime CN201560307U (en) | 2009-11-25 | 2009-11-25 | Installation structure for sensor at machine needle position of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201560307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701401B (en) * | 2009-11-25 | 2012-09-05 | 苏州扬名机电有限公司 | Installation structure of position sensors of sewing machine needle |
| CN108149404A (en) * | 2018-03-05 | 2018-06-12 | 苏州强逸机械有限公司 | A kind of use in sewing machine needle bar crank |
-
2009
- 2009-11-25 CN CN2009202730408U patent/CN201560307U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701401B (en) * | 2009-11-25 | 2012-09-05 | 苏州扬名机电有限公司 | Installation structure of position sensors of sewing machine needle |
| CN108149404A (en) * | 2018-03-05 | 2018-06-12 | 苏州强逸机械有限公司 | A kind of use in sewing machine needle bar crank |
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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: 20100825 Effective date of abandoning: 20091125 |