CN203834159U - Dynamic balancing device of needle bar cam mechanism of computerized embroidery machine - Google Patents
Dynamic balancing device of needle bar cam mechanism of computerized embroidery machine Download PDFInfo
- Publication number
- CN203834159U CN203834159U CN201420133454.1U CN201420133454U CN203834159U CN 203834159 U CN203834159 U CN 203834159U CN 201420133454 U CN201420133454 U CN 201420133454U CN 203834159 U CN203834159 U CN 203834159U
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- Prior art keywords
- cam
- needle bar
- driving cam
- embroidery machine
- cam mechanism
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- Expired - Lifetime
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- 238000009956 embroidering Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a dynamic balancing device of the needle bar cam mechanism of a computerized embroidery machine and belongs to the field of embroidery machinery. The dynamic balancing device of the needle bar cam mechanism of the computerized embroidery machine designs and improves a cam base between a needle bar transmission cam and a take-up lever driving cam; a connecting base plate is fixedly provided with a balancing weight for balancing the centrifugal force generated during working of the two cams. The dynamic balancing device of the needle bar cam mechanism of the computerized embroidery machine has the advantages of greatly reducing or even eliminating the centrifugal force generated during rotation of the needle bar transmission cam and the take-up lever driving cam as well as shaking due to the centrifugal force, reducing the noise, improving the labor environment, greatly reducing the embroidery breakage rate, prolonging the service life of eccentric bearings in the needle bar cam and the take-up lever cam and improving the reliability, durability and economy of the computerized embroidery machine.
Description
Technical field
The utility model relates to a kind of computerized emboridering machine, especially relates to a kind of dynamic balancer of computer embroidering machine with needle cam mechanism.
Background technology
In prior art, needle-bar cam in embroidering machine head and thread take-up tension lever driving cam means are eccentric cam setting, and eccentric cam is in rotary course, due to the effect of inertia, cause head vibrations excessive, not only produce noise but also affect the life-span of head and the outage of embroidering.Some embroidery machine adopts capacity eccentric bearing in needle-bar cam mechanism, substitute sliding friction with rolling friction, although can reduce friction, reduce vibrating noise and still cannot improve all the time the vibrations that bring due to the inertia of eccentric cam, affect the service life of embroidering machine head and the service life of bearing, cannot improve rotating speed, hinder the raising of production efficiency.
Utility model content
Order of the present utility model is the service life in order to extend embroidering machine head, the vibrations that the centrifugal force producing while reducing because of shank driving cam and the rotation of thread take-up tension lever driving cam brings, control the noise of embroidery machine head, extend the service life of capacity eccentric bearing in shank cam mechanism, reduce embroidery outage, improve the production efficiency of embroidery machine.
To achieve the above object, the utility model is to the technical scheme providing: a kind of dynamic balancer of computer embroidering machine with needle cam mechanism, comprise thread take-up tension lever driving cam and shank driving cam, between described thread take-up tension lever driving cam and shank driving cam, be provided with cam bedplate, the balancing weight of the centrifugal force producing while being provided with for balance thread take-up tension lever driving cam and the operation of shank driving cam on described cam bedplate, the installation site of balancing weight on cam bedplate do not hinder the motion of shank driving cam.
Wherein balancing weight is arranged at cam bedplate on the surface of shank driving cam one side.
Further, cam bedplate is provided with the installing hole of thread take-up tension lever driving cam.
By calculating and testing, be provided with equilibrate counterweight at thread take-up tension lever driving cam base, make shank driving cam and thread take-up tension lever driving cam obtain when rotated dynamic equilibrium, so significantly reduce and even eliminated the vibrations that bring due to shank driving cam and thread take-up tension lever driving cam use eccentric wheel structure.
The beneficial effect of the utility model patent is: the centrifugal force producing when significantly reducing or even having eliminated because of the rotation of shank driving cam, thread take-up tension lever driving cam, reduces or even eliminates the vibrations that this centrifugal force brings; Reduce noise, improved work situation, reduced greatly embroidery outage; Strengthen the life-span of embroidering machine head, extended the service life of capacity eccentric bearing in needle-bar cam and thread take-up tension lever cam mechanism, improved reliability, durability and the economy of machine.
figure of description
Fig. 1 is the structural representation of thread take-up tension lever driving cam base and equilibrate counterweight in the utility model embodiment;
Fig. 2 is the structural representation of needle-bar cam mechanism in the utility model embodiment;
Fig. 3 is the part explosive view of needle-bar cam mechanism in the utility model embodiment.
In figure: 1-thread take-up tension lever driving cam base, 112-through hole, 13-installing hole, 2-equilibrate counterweight, 3-thread take-up tension lever driving cam, 33-fixing hole, 4-shank driving cam, 41-bearing, 411-bearing cone, 412-nut bore.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1 to Figure 3: a kind of dynamic balancer of computer embroidering machine with needle cam mechanism, comprise thread take-up tension lever driving cam 3 and shank driving cam 4, as preferred version, in the present embodiment, adopting Granted publication number is the deep groove ball bearing 41 of disclosed a kind of cam link combination in CN 201068925Y patent, bearing 41 is provided with bearing cone 411, bearing cone 411 is provided with some nut bore 412, cam bedplate 1 is provided with some through holes 112, and through hole 112 is corresponding with nut bore 412; By through hole 112 and nut bore 412, cam bedplate 1 is fixed on bearing cone 411.
Balancing weight 2: as shown in Figure 1 to Figure 3, as preferred version, the edge of cam bedplate 1 is provided with and is provided with balancing weight 2, the centrifugal force that balancing weight 2 produces for balance thread take-up tension lever driving cam 3 and shank driving cam 4; In the time that embroidery machine is worked, equilibrate counterweight 2 does not hinder the motion of thread take-up tension lever driving cam 3 and shank driving cam 4.As preferred version, balancing weight 2 is arranged at cam bedplate 1 on the surface of shank driving cam 4 one sides simultaneously.
The installation of thread take-up tension lever driving cam 3: as shown in Figure 3, thread take-up tension lever driving cam 3 is provided with fixing hole 33 is provided with the installing hole 13 of thread take-up tension lever driving cam 3 on cam bedplate 1, and the position of installing hole 13 and fixing hole 33 adapt; By installing hole 13, thread take-up tension lever driving cam 3 is fixed on cam bedplate 1.
Claims (3)
1. the dynamic balancer of a computer embroidering machine with needle cam mechanism, comprise thread take-up tension lever driving cam (3) and shank driving cam (4), it is characterized in that: between described thread take-up tension lever driving cam (3) and shank driving cam (4), be provided with cam bedplate (1), the balancing weight (2) of the centrifugal force producing while being provided with for balance thread take-up tension lever driving cam (3) and shank driving cam (4) operation on described cam bedplate (1), the installation site of balancing weight (2) on cam bedplate (1) do not hinder the motion of shank driving cam (4).
2. the dynamic balancer of a kind of computer embroidering machine with needle cam mechanism according to claim 1, is characterized in that: described balancing weight (2) is arranged at cam bedplate (1) on the surface of shank driving cam (4) one sides.
3. the dynamic balancer of a kind of computer embroidering machine with needle cam mechanism according to claim 1, is characterized in that: described cam bedplate (1) is provided with the installing hole (13) of thread take-up tension lever driving cam (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133454.1U CN203834159U (en) | 2014-03-24 | 2014-03-24 | Dynamic balancing device of needle bar cam mechanism of computerized embroidery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133454.1U CN203834159U (en) | 2014-03-24 | 2014-03-24 | Dynamic balancing device of needle bar cam mechanism of computerized embroidery machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203834159U true CN203834159U (en) | 2014-09-17 |
Family
ID=51512023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420133454.1U Expired - Lifetime CN203834159U (en) | 2014-03-24 | 2014-03-24 | Dynamic balancing device of needle bar cam mechanism of computerized embroidery machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203834159U (en) |
-
2014
- 2014-03-24 CN CN201420133454.1U patent/CN203834159U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |
|
| CX01 | Expiry of patent term |