CN201288245Y - Depressing cam for computer knitting horizontal machine - Google Patents
Depressing cam for computer knitting horizontal machine Download PDFInfo
- Publication number
- CN201288245Y CN201288245Y CNU2008202019712U CN200820201971U CN201288245Y CN 201288245 Y CN201288245 Y CN 201288245Y CN U2008202019712 U CNU2008202019712 U CN U2008202019712U CN 200820201971 U CN200820201971 U CN 200820201971U CN 201288245 Y CN201288245 Y CN 201288245Y
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- working face
- triangle
- removable
- fixed
- pressing
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Abstract
The utility model relates to the technical field of knitting machinery, especially to a stitch cam used for a computer flat machine, which comprises a fixed triangle and a movable triangle, the fixed triangle is arranged slantways, and comprises a stitch working face and a non-stitch working face, the stitch working face of the fixed triangle is non-linear outline surface and is formed by connecting a plurality sections of secondary curve and straight line in interval, the non-stitch working face of the fixed triangle is linear outline surface, is tightly contacted with the movable triangle, can effectively reduce impact force between the knitting needle and the stitch cam, and prolongs service life of the knitting needle and the stitch cam.
Description
Technical field:
The utility model relates to technical field of knitting machinery, refers in particular to a kind of depressing cam that is used in computer flat knitting machine.
Background technology:
In knitting manufacturing enterprise, computer flat knitting machine is used to produce sweater garment piece, the annexes such as sweater and collar that are shaped entirely.Depressing cam is a vitals on the computer flat knitting machine, the working face of depressing cam (the moving displacement curve of knitting needle) is that design is straight, the depressing cam of computer flat knitting machine will be moved up and down by the control of stepper motor and knitting program, cause the position of the beginning contact point between knitting needle and the depressing cam unfixing, because the working face (the moving displacement curve of knitting needle) of depressing cam is designed to straight line, no matter where depressing cam moves up and down, and knitting needle all is and the effect of contacting of the depressing cam of fixed slope.When knitting needle contacts with the depressing cam of straight line working face, the first derivative of the working face of depressing cam and second dervative are all discontinuous, the speed of knitting needle takes place to change suddenly, causes the acceleration infinity, makes and has produced infinitely-great in theory impulsive force between knitting needle and the depressing cam.Running along with computer flat knitting machine, this impulsive force can act on knitting needle and the depressing cam repeatedly, it can cause the fatigue of knitting needle and the wearing and tearing of depressing cam, have influence on the service life of knitting needle and depressing cam, particularly computer flat knitting machine is when running up, and the fatigue of knitting needle and the wearing and tearing of depressing cam are even more serious.
The utility model content:
The purpose of this utility model is to provide a kind of depressing cam that is used in computer flat knitting machine at the deficiencies in the prior art, and it can reduce impulsive force between knitting needle and the depressing cam effectively, prolongs the service life of knitting needle and depressing cam.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of depressing cam that is used in computer flat knitting machine, it comprises fixed triangle and removable triangle, described fixed triangle is tilted configuration, fixed triangle comprises pressing working face and non-pressing working face, pressing working face on the fixed triangle is non-linear wide face, the pressing working face is formed by connecting by multistage conic section and linear interval, and the pressing working face moves downward knitting needle in needle tray when the pressing working face acts on knitting needle; The non-pressing working face of fixed triangle is linear wide face, and non-pressing working face closely contacts with removable triangle.
Described removable triangle is tilted configuration, the working face of removable triangle is formed by connecting at interval by multistage straight line and conic section, wherein, the straightway working face of removable triangle closely contacts with the non-pressing working face of fixed triangle, removable triangle can be adjacent to fixed triangle under the control of stepper motor and knitting program non-pressing working face slides up and down, and the least significant end of removable triangle is lower than the least significant end of fixed triangle all the time, and the knitting needle that removable triangle can be depressed the triangle that is fixed by the effect of straightway working face further is pressed downwardly onto desired location.
The beneficial effects of the utility model: the utility model comprises fixed triangle and removable triangle, described fixed triangle is tilted configuration, fixed triangle comprises pressing working face and non-pressing working face, pressing working face on the fixed triangle is non-linear wide face, the pressing working face is formed by connecting by multistage conic section and linear interval, the non-pressing working face of fixed triangle is linear wide face, non-pressing working face closely contacts with removable triangle, it can reduce impulsive force between knitting needle and the depressing cam effectively, prolongs the service life of knitting needle and depressing cam.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is user mode figure of the present utility model;
Accompanying drawing 3 is another kind of user mode figure of the present utility model.
The specific embodiment:
Depressing cam is seen accompanying drawing 1, it comprises fixed triangle 1 and removable triangle 2, described fixed triangle 1 is tilted configuration, fixed triangle 1 comprises pressing working face and non-pressing working face, pressing working face on the fixed triangle 1 is non-linear wide face, the pressing working face is formed by connecting by multistage conic section and linear interval, and when the pressing working face acted on knitting needle, the pressing working face moved downward knitting needle in needle tray.
Pressing working face on the fixed triangle 1 comprises initial pressing working face, following initial pressing working face, linear pressing working face, transition working face.Wherein, a-b section working face and d-e section working face on the upper and lower initial pressing working face difference pressing working face, the a-b section working face of pressing working face and d-e section working face all are designed to conic section, and making the pin heel continuous with first derivative and second dervative that the pressing working face begins the contact position, the impulsive force between knitting needle and the triangle is zero; Linear pressing working face is respectively b-c section working face, e-f section working face and the g-h section working face of pressing working face, and b-c section working face, e-f section working face and g-h section working face are respectively straightway; The transition working face is respectively c-d section working face, f-g section working face and the h-j section working face of pressing working face, the transition working face is used to connect linear pressing working face, the c-d section working face of pressing working face, f-g section working face and h-j section working face also all are designed to conic section, they make the first derivative of tie point continuous, second dervative changes in limited range, thereby the acceleration sudden change and the inertia force sudden change of knitting needle can be controlled at more among a small circle.
The non-pressing working face of described fixed triangle 1 is the j-k section working face on the fixed triangle 1, and the j-k section working face on the fixed triangle 1 is the straight line line segment, and the j-k section working face on the fixed triangle 1 is linear.The non-pressing working face of fixed triangle 1 is linear wide face, and non-pressing working face closely contacts with removable triangle 2.
Described removable triangle 2 is tilted configuration, the working face of removable triangle 2 is formed by connecting by multistage straight line and conic section, and the working face of removable triangle 2 comprises the working face when straightway working face, transition working face, linear pressing working face and selected knitting needle carry out barring-on.Wherein, the straightway working face of removable triangle 2 is the A-B section working face on the removable triangle 2, A-B section working face is linear wide face, the straightway working face of removable triangle 2 closely contacts with the non-pressing working face of fixed triangle 1, and the A-B section working face of promptly removable triangle 2 closely contacts with the j-k section working face of fixed triangle 1; Removable triangle 2 can be adjacent to fixed triangle 1 under the control of stepper motor and knitting program non-pressing working face slides up and down, and the least significant end of removable triangle 2 is lower than the least significant end of fixed triangle 1 all the time, and removable triangle 2 can further be pressed downwardly onto desired location with the knitting needle that the triangle 1 that is fixed is depressed by the effect of straightway working face; Further point out, when removable triangle 2 is subjected to the control of stepper motor and program, removable triangle 21 moves up and down according to fixing linear track (direction shown in the dotted arrow among the figure), simultaneously, removable triangle 2 is further to be pressed downwardly onto desired location by the j-B working face knitting needle that triangle 1 depresses that will be fixed; The transition working face is the B-C section working face on the removable triangle 2, and B-C section working face is a conic section; Linear pressing working face is the C-D section working face on the removable triangle 2, linear pressing working face finishes pressing at the D point, the first derivative at tie point B and C place is continuous, and second dervative changes in the finite value scope, so the acceleration of knitting needle suddenlys change and the inertia force sudden change also is controlled at more among a small circle; Working face when selected knitting needle carries out barring-on is the D-E-A section on the removable triangle 2.
When head moved from right to left, shown in Figure 2, the movement locus of selected knitting needle when relevant cam system is carried out lopping, tuck respectively and do not woven was respectively dotted line K, T and F.
Knitting needle is selected when carrying out the lopping braiding, rise through the effect of rise cam 3 earlier and move back circle, then be directed to 4 times pressure pad yarns of triangle, contact at last initial pressing working face (a-b section working face) with fixed triangle 1 afterwards, and drop to certain depth along the linear pressing working face of fixed triangle 1 and removable triangle 2, then form coil, after protect the effect of pin triangle 5 and go up to starting altitude.
Knitting needle is selected when carrying out tuck knitting, effect through rise cam 3 earlier rises to tuck height, be subjected to the effect of tuck pressing plate afterwards, the pin heel needle tray that submerges makes knitting needle no longer continue to rise but horizontal movement, then knitting needle contacts at last initial pressing working face (a-b section working face) with fixed triangle 1, and knitting needle movement locus subsequently and lopping braiding are just the same.
Knitting needle is selected when not weaving, and the pin heel needle tray that submerges is not subjected to above-mentioned any triangle effect, keeps horizontal movement.
When head moved from right to left, shown in Figure 3, the movement locus of selected knitting needle when relevant cam system is carried out barring-on and adapter ring respectively was respectively dotted line D and R.
Knitting needle is selected when carrying out barring-on, the removable triangle 2 on the left side is descended by the control of stepper motor and program, knitting needle is subjected to the effect of barring-on working face of the removable triangle 2 on the left side to rise to the barring-on height earlier, be depressed by the effect of the guiding triangle 4 on the left side and the right, contact at last initial pressing working face (a-b section working face) with fixed triangle 1 subsequently, and dropping to certain depth along the pressing working face of the removable triangle 2 on fixed triangle 1 and the right, final level moves to end.
Knitting needle is selected when carrying out adapter ring, incipient stage is subjected to the effect of adapter ring pressing plate, the pin heel needle tray that submerges, make knitting needle not be subjected to the effect of the removable triangle 2 on the left side and rise cam 3 and keep horizontal movement, when knitting needle moves to adapter ring triangle 7 places, adapter ring pressing plate release of pressure, knitting needle rises and descends along the adapter ring triangle, contact at following initial pressing working face with fixed triangle 1 afterwards, and dropping to certain depth along the pressing working face of the removable triangle 2 on fixed triangle 1 and the right, final level moves to end.
During use, the utility model and above-mentioned other triangle are positioned on the cam base plate of head.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (2)
1, a kind of depressing cam that is used in computer flat knitting machine, it is characterized in that: it comprises fixed triangle (1) and removable triangle (2), described fixed triangle (1) is tilted configuration, fixed triangle (1) comprises pressing working face and non-pressing working face, pressing working face on the fixed triangle (1) is non-linear wide face, the pressing working face is formed by connecting by multistage conic section and linear interval, and the pressing working face moves downward knitting needle in needle tray when the pressing working face acts on knitting needle; The non-pressing working face of fixed triangle (1) is linear wide face, and non-pressing working face closely contacts with removable triangle (2).
2, a kind of depressing cam that is used in computer flat knitting machine according to claim 1, it is characterized in that: described removable triangle (2) is tilted configuration, the working face of removable triangle (2) is formed by connecting at interval by multistage straight line and conic section, wherein, the straightway working face of removable triangle (2) closely contacts with the non-pressing working face of fixed triangle (1), removable triangle (2) can be adjacent to fixed triangle (1) under the control of stepper motor and knitting program non-pressing working face slides up and down, and the least significant end of removable triangle (2) is lower than the least significant end of fixed triangle (1) all the time, and the knitting needle that removable triangle (2) can be depressed the triangle that is fixed (1) by the effect of straightway working face further is pressed downwardly onto desired location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202019712U CN201288245Y (en) | 2008-10-17 | 2008-10-17 | Depressing cam for computer knitting horizontal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202019712U CN201288245Y (en) | 2008-10-17 | 2008-10-17 | Depressing cam for computer knitting horizontal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288245Y true CN201288245Y (en) | 2009-08-12 |
Family
ID=40979923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202019712U Expired - Fee Related CN201288245Y (en) | 2008-10-17 | 2008-10-17 | Depressing cam for computer knitting horizontal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288245Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845705A (en) * | 2010-04-28 | 2010-09-29 | 常熟市金龙机械有限公司 | Looping mechanism of computer flat knitting machine |
-
2008
- 2008-10-17 CN CNU2008202019712U patent/CN201288245Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845705A (en) * | 2010-04-28 | 2010-09-29 | 常熟市金龙机械有限公司 | Looping mechanism of computer flat knitting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |