CN210085762U - Ratchet indexing positioning mechanism - Google Patents
Ratchet indexing positioning mechanism Download PDFInfo
- Publication number
- CN210085762U CN210085762U CN201920616939.9U CN201920616939U CN210085762U CN 210085762 U CN210085762 U CN 210085762U CN 201920616939 U CN201920616939 U CN 201920616939U CN 210085762 U CN210085762 U CN 210085762U
- Authority
- CN
- China
- Prior art keywords
- pawl
- mandrel
- positioning
- ratchet
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a ratchet graduation positioning mechanism mainly includes: ratchet graduation positioning mechanism mainly includes: the mechanism comprises a mechanism mounting plate, a cylinder mounting seat, a cylinder, a pawl mounting frame, a cylindrical pin, a pawl, a connecting rod, a torsion spring, a mandrel mounting seat, a mandrel, a cylindrical pin, a ratchet wheel, a positioning pin, a pawl mounting seat, a positioning pawl, a positioning hook, a notch and a turntable; the mechanism mounting plate is hinged with a cylinder mounting seat and a cylinder, and a piston rod of the cylinder is provided with a pawl mounting frame; the pawl mounting rack is provided with a cylindrical pin; a pawl and a connecting rod are arranged on the cylindrical pin; the other end of the connecting rod is hinged on the mandrel; a ratchet wheel is arranged on the mandrel below the mandrel mounting seat; through the utility model discloses a design, when the piston rod of cylinder feeds, accomplished the drive of ratchet, graduation action, when the piston rod is retreated, by the way just accomplished the location work of ratchet, whole equipment simple structure, the overall arrangement is compact, fixes a position accurately.
Description
Technical Field
The utility model belongs to the technical field of the mechanical equipment technique that can use the rotating shuttle in embroidery machine, automatic sewing machine and specifically relates to an automatic trade ratchet graduation positioning mechanism in shuttle device.
Background
In embroidery machines and automatic sewing machine equipment, ratchet wheel and pawl transmission is an indexing mechanism on an automatic shuttle changing device, is a common mechanism, is generally limited to a one-way toggle mechanism, and is a ratchet wheel indexing positioning mechanism which can toggle a ratchet wheel to rotate by using a driving mechanism and can perform accurate positioning.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art's weak point, provide a ratchet graduation positioning mechanism, this mechanism stirs ratchet with a actuating mechanism and rotates, can also carry out the accurate positioning simultaneously.
The mechanism has the characteristics that the mechanism can not only perform indexing, but also can perform positioning and locking after indexing, and integrates two functions, wherein one air cylinder can complete the two functions in the feeding and withdrawing actions.
The utility model aims at realizing through the following technical scheme:
ratchet graduation positioning mechanism mainly includes: mechanism mounting panel, cylinder mount pad, cylinder, pawl mounting bracket, cylindric lock, pawl, connecting rod, torsional spring, dabber mount pad, dabber, cylindric lock, ratchet, locating pin, pawl mount pad, location pawl, location hook, notch, carousel.
The mechanism mounting plate is hinged with a cylinder mounting seat and a cylinder, and a pawl mounting frame is mounted on a piston rod of the cylinder.
The pawl mounting rack is provided with a cylindrical pin.
And a pawl and a connecting rod are arranged on the cylindrical pin.
The other end of the connecting rod is hinged on the mandrel.
And a torsion spring is arranged at the pawl.
The mechanism mounting plate is provided with a mandrel mounting seat, a mandrel is arranged in the mandrel mounting seat, and the mandrel is provided with a cylindrical pin.
And a ratchet wheel is arranged on the mandrel below the mandrel mounting seat.
The ratchet wheel is fastened on the mandrel by a set screw.
The ratchet wheel is provided with a positioning pin.
And the mechanism mounting plate is provided with a pawl mounting seat.
And the pawl mounting seat is hinged with a positioning pawl.
And a torsion spring is arranged at the positioning pawl.
The technical characteristics are as follows:
1. positioning pins with the same number as the shifting grooves are distributed on the ratchet wheel rotating plane.
2. In the mechanism, two pawls are designed and installed, one is used for shifting the ratchet wheel to rotate, and the other is used for positioning the ratchet wheel.
3. The front end of the pawl mounting frame is made into a positioning hook for positioning the ratchet wheel.
The work of a whole set of ratchet mechanism, driven by a cylinder, the pawl mounting bracket is fixed on the cylinder piston rod, the cylinder is articulated to be installed on the mechanism mounting panel, when the piston rod of cylinder stretches out forward, the pawl that is located on the pawl mounting bracket stirs the ratchet and rotates a working angle, at this moment, the location pawl card has been gone into one of ratchet and has been dialled the groove, when the cylinder moves back to soon to the terminal point, the locating hook of pawl mounting bracket has caught a rear locating pin, make the ratchet reverse rotation, after the notch of dialling the groove is withstood to the preceding terminal surface of locating pawl, the ratchet just can not continue to reverse backward, at this moment, the ratchet is under the combined action of locating hook, locating pin and location pawl, just obtain accurate positioning.
The mechanism has wide applicability and universality, and can be applied to other occasions needing indexing and locking after indexing.
The utility model has the advantages and beneficial effects that:
the utility model overcomes a difficult problem that ordinary ratchet pawl drive mechanism commonly used can only one-way stir, through the utility model discloses a design, when the piston rod of cylinder feeds, accomplished drive, the graduation action of ratchet, when the piston rod is retreated, by the way just accomplished the location work of ratchet, whole set of device simple structure, the overall arrangement is compact, fixes a position accurately.
Drawings
FIG. 1 is a front view of the mechanism;
FIG. 2 is a top view of the mechanism;
FIG. 3 is a top view of the mechanism;
fig. 4 is a perspective view of the present mechanism.
1. The mechanism comprises a mechanism mounting plate 2, a cylinder mounting seat 3, a cylinder 4, a pawl mounting frame 5, a cylindrical pin 6, a pawl 7, a connecting rod 8, a torsion spring 9, a mandrel mounting seat 10, a mandrel 11, a cylindrical pin 12, a ratchet 13, a positioning pin 14, a pawl mounting seat 15, a positioning pawl 16, a positioning hook 17, a notch 18 and a turntable.
Detailed Description
For a further understanding of the contents, features and effects of the present invention, reference will now be made to the following examples, which are to be considered in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.
Ratchet graduation positioning mechanism mainly includes: mechanism mounting panel, cylinder mount pad, cylinder, pawl mounting bracket, cylindric lock, pawl, connecting rod, torsional spring, dabber mount pad, dabber, cylindric lock, ratchet, locating pin, pawl mount pad, location pawl, location hook, notch, carousel.
The mechanism mounting plate (1) on articulated cylinder mount pad (2) and cylinder (3) of installing, install pawl mounting bracket (4) on the piston rod of cylinder.
The pawl mounting rack is provided with a cylindrical pin (5).
And a pawl (6) and a connecting rod (7) are arranged on the cylindrical pin.
The other end of the connecting rod (7) is hinged on the mandrel (10).
And a torsion spring (8) is arranged at the pawl (6).
The mechanism mounting plate (1) is provided with a mandrel mounting seat (9), a mandrel (10) is arranged in the mandrel mounting seat (9), and the mandrel (10) is provided with a cylindrical pin (11).
And a ratchet wheel (12) is arranged on the mandrel below the mandrel mounting seat (9).
The ratchet wheel (12) is fastened on the mandrel (10) by a set screw.
And a positioning pin (13) is arranged on the ratchet wheel (12).
The mechanism mounting plate (1) is provided with a pawl mounting seat (14).
And a positioning pawl (15) is hinged on the pawl mounting seat (14).
And a torsion spring (8) is arranged at the positioning pawl (15).
As shown in fig. 3:
when a piston rod of the air cylinder (3) extends forwards, a pawl (6) on a pawl mounting frame (4) dials the ratchet wheel (12) to rotate by an index angle α, at the moment, a positioning pawl (15) is clamped in a shifting groove of the ratchet wheel (12) under the action of a torsion spring (8), when the piston rod of the air cylinder retreats to a point near the end, a positioning hook (16) at the front end of the pawl mounting frame (4) hooks a positioning pin (13) behind the positioning pawl, the ratchet wheel (12) rotates reversely under the action of the retreating of the piston rod, and when the front end surface of the positioning pawl (15) abuts against the positioning surface of a notch (17) of the shifting groove of the ratchet wheel (12), the ratchet wheel (12) cannot rotate backwards continuously, and at the moment, the ratchet wheel (12) is accurately positioned under the combined action of the positioning hook (16), the positioning pin (13) and the positioning pawl (15) at the front end of the pawl mounting frame (4).
A rotary table (18) can be installed at the upper end of the mandrel (10), a positioning groove is formed in the lower portion of the rotary table (18) and clamped on the positioning pin (11), and the rotary table (18) can rotate synchronously with the ratchet wheel (12).
Claims (5)
1. A ratchet indexing positioning mechanism comprising: the mechanism comprises a mechanism mounting plate, a cylinder mounting seat, a cylinder, a pawl mounting frame, a cylindrical pin, a pawl, a connecting rod, a torsion spring, a mandrel mounting seat, a mandrel, a cylindrical pin, a ratchet wheel, a positioning pin, a pawl mounting seat, a positioning pawl, a positioning hook, a notch and a turntable; the method is characterized in that: the mechanism mounting plate is hinged with a cylinder mounting seat and a cylinder; the mechanism mounting plate is provided with a mandrel mounting seat; the mechanism mounting plate is provided with a pawl mounting seat; the pawl mounting rack is provided with a cylindrical pin; a pawl and a connecting rod are arranged on the cylindrical pin; the other end of the connecting rod is hinged on the mandrel; a torsion spring is arranged at the pawl; a ratchet wheel is arranged on the mandrel below the mandrel mounting seat; the ratchet wheel is fastened on the mandrel by a set screw.
2. The ratchet indexing positioning mechanism of claim 1, wherein: the ratchet wheel is provided with a positioning pin.
3. The ratchet indexing positioning mechanism of claim 1, wherein: and the pawl mounting seat is hinged with a positioning pawl.
4. The ratchet indexing positioning mechanism of claim 1, wherein: and a torsion spring is arranged at the positioning pawl.
5. The ratchet indexing positioning mechanism of claim 1, wherein: the mandrel mounting seat is internally provided with a mandrel, and the mandrel is provided with a cylindrical pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920616939.9U CN210085762U (en) | 2019-04-30 | 2019-04-30 | Ratchet indexing positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920616939.9U CN210085762U (en) | 2019-04-30 | 2019-04-30 | Ratchet indexing positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210085762U true CN210085762U (en) | 2020-02-18 |
Family
ID=69476647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920616939.9U Expired - Fee Related CN210085762U (en) | 2019-04-30 | 2019-04-30 | Ratchet indexing positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210085762U (en) |
-
2019
- 2019-04-30 CN CN201920616939.9U patent/CN210085762U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210085762U (en) | Ratchet indexing positioning mechanism | |
| CN208231227U (en) | A kind of intelligence screw locking machine | |
| CN211239649U (en) | Motor end cover assembly fixture | |
| CN114872637A (en) | Vehicle-mounted LCD display screen structure | |
| CN201482839U (en) | Driving device of accessory clamping die base of full-automatic pipe bender | |
| CN201300590Y (en) | Hexahedral printer | |
| CN213997631U (en) | Wire rod intermittent feeding device | |
| CN212946374U (en) | Air compression pump rotational positioning tray for assembly line | |
| CN109500862A (en) | A kind of terminal cutting means | |
| CN109355792B (en) | Double-system flat knitting machine bottom plate and transmission method | |
| CN213328178U (en) | Double-sequin embroidery device for embroidery machine | |
| CN220746258U (en) | Rotary swinging type material receiving device and sewing machine | |
| CN209409807U (en) | The saddle type rice transplanter stepless transmission that touches on the brake returns neutral arresting stop | |
| CN216779284U (en) | Can fix a position point gum machine of lifting and construct | |
| CN219213127U (en) | Reinforcing steel bar punctuation machine | |
| CN217122379U (en) | Hydro-cylinder shaping device | |
| CN212920936U (en) | Display device for power grid planning design | |
| CN211908886U (en) | Vehicle-mounted mobile phone support base | |
| US5168821A (en) | Sewing machine having a threading device | |
| CN220461965U (en) | Stamping device capable of achieving secondary positioning | |
| CN220639314U (en) | Voucher finishing device for financial accounting | |
| CN103240448A (en) | Gear shift fork drilling clamp | |
| CN216883570U (en) | Rotatable thimble structure | |
| CN217669000U (en) | Positioning tool for core sticking of lead frame | |
| CN218965803U (en) | Feeding assembly of concrete mixer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20210430 |