CN207998669U - A kind of passive type cam shedding mechanism - Google Patents
A kind of passive type cam shedding mechanism Download PDFInfo
- Publication number
- CN207998669U CN207998669U CN201820123258.4U CN201820123258U CN207998669U CN 207998669 U CN207998669 U CN 207998669U CN 201820123258 U CN201820123258 U CN 201820123258U CN 207998669 U CN207998669 U CN 207998669U
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- Prior art keywords
- cam
- shedding
- heald frame
- passive type
- gear
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Abstract
The utility model discloses a kind of passive type cam shedding mechanisms, belong to air-jet loom field, it is intended to provide a kind of passive type cam shedding mechanism improving fabric variety, its technical solution is as follows, including rack, the heald frame saddle being arranged in rack, heald frame on heald frame saddle is set, heald frame driving mechanism and time comprehensive component, the heald frame driving mechanism includes that the belt pulley of rotation is driven by driving motor, transmission shaft for installing belt pulley, with the coaxial mounted transmission gear of transmission shaft, the shedding cam moved by drive gears turn and the cam follower rolled along shedding cam profile, the shedding cam is driven by transmission gear and is operated, the shedding cam is eight cycle cams.Eight cycle cams are used, to expand the kind accommodation of negative shedding cam air-jet loom, improve the utilization rate of loom.
Description
Technical field
The utility model is related to air-jet loom, more particularly to a kind of passive type cam shedding mechanism.
Background technology
Air-jet loom is the shuttleless loom that shed open is passed through using jet-stream wind weft traction.Operation principle is made using air
For wefting insertion medium, frictional traction is generated to weft yarn with the compressed air stream ejected and is drawn, weft tapes are crossed into shed open, are passed through
The jet stream that jet generates achievees the purpose that wefting insertion.
The fabric tissue recurring number of air-jet loom passive type cam shedding mechanism is 4,5 and 6 at present, can only weaving cycle latitude
Plain weave, twill, satin weave and simple change fabric tissue, the kind limitation of fabric within several 6 latitudes is big.
Utility model content
The purpose of this utility model is to provide a kind of passive type cam shedding mechanism, has the effect of improving fabric variety.
The above-mentioned technical purpose of the utility model technical scheme is that:
A kind of passive type cam shedding mechanism, including rack, the heald frame saddle being arranged in rack, setting are in heald frame saddle
On heald frame, heald frame driving mechanism and return comprehensive component, the heald frame driving mechanism include by driving motor drive rotation belt
Wheel, the transmission shaft for installing belt pulley, with transmission shaft coaxial mounted transmission gear, the opening moved by drive gears turn
Cam and the cam follower rolled along shedding cam profile, the shedding cam are driven by transmission gear and are operated, and the opening is convex
Wheel is eight cycle cams, and the transmission ratio of the transmission gear is 1:8.
By using above-mentioned technical proposal, the kind that eight cycle cams have expanded negative shedding cam air-jet loom adapts to
Range improves the utilization rate of loom.
Further, the eight cycles cam is five times eight circulation openings cams on three.
By using above-mentioned technical proposal, five times eight circulation openings cams are easy to process on three, save raw material.
Further, the transmission gear includes bevel gear pair and spur gear pair.
By using above-mentioned technical proposal, it is driven using transmission gear so that loom structure is compacter, reliable operation,
And service life is long, can use for a long time, improves the working efficiency of loom.
Further, the bevel gear pair includes the cone pinion being mounted on transmission shaft, large bevel gear and for installing
The gamp tooth wheel shaft of large bevel gear.
By using above-mentioned technical proposal, bevel gear has the characteristics that stable drive, noise be small and large carrying capacity, and uses
In the occasion of high-speed overload.Therefore, cone pinion and belt pulley are co-axially mounted so that transmission shaft driven is more steady.
Further, the spur gear pair includes and the coaxial mounted small Spur gear of large bevel gear, large straight gear and is used for
The large straight gear axis of large straight gear is installed, the shedding cam is co-axially mounted with large straight gear.
By using above-mentioned technical proposal, loom floats a large amount of cotton-wool during weaving, in air, and cotton-wool is easy poly-
Product influences gear drive and gear-driven accuracy on transmission gear.Compared to other gear drives, spur gear pair is more just
In cleaning.
Further, the shedding cam drives an opening arm, the cam follower to be arranged in opening arm through cam follower
Input terminal, the output end of the opening arm is equipped with heald cord clamping seats, a lifting-cord, institute is provided on the heald cord clamping seats
Lifting-cord is stated to connect with the hook of heald frame lower end by pulley.
It by using above-mentioned technical proposal, in order to make heald frame decline, is rotated by driving motor driving belt pulley, drives and pass
Moving gear rotates, and is rotated with the coaxial mounted shedding cam of transmission gear to drive so that cam follower is in shedding cam wheel
It is rolled on exterior feature, to drive opening arm realization to swing up and down, opening arm pulls lifting-cord through heald cord clamping seats, and lifting-cord is through pulley
Converting motion direction drives heald frame to decline along heald frame saddle.
Further, described time comprehensive component include be arranged frame top both sides return comprehensive arm, hook return comprehensive arm on the inside of with
Heald twine between heald frame upper end is arranged and is connect with the outside for returning comprehensive arm in the return spring bearing of shell outside and one end,
The return spring group that the other end is connect with return spring bearing.
By using above-mentioned technical proposal, when heald frame is moved downward along heald frame saddle, return spring is forced downwards
And be stretched, when shedding cam is rotated further, when cam follower turns at the decline of shedding cam profile so that lifting-cord
It does not stress, heald frame moves upwards under the action of the elastic-restoring force of return spring along the direction of head frame guides, to realize
The lifting of heald frame.Return spring group is also possible that opening process split shed cam is not easily disconnected from cam follower.
Further, the lifting-cord and heald twine are nylon steel wire rope.
By using above-mentioned technical proposal, nylon steel wire rope antirust, abrasion-resistant, flexibility is good, tension bullet degree is big, when can be long
Between use, improve work efficiency.
In conclusion the utility model has the advantages that:
1. using eight cycle cams, to expand the kind accommodation of negative shedding cam air-jet loom, carry
The high utilization rate of loom;
2. using cam follower, to reduce the abrasion of shedding cam, the service life of shedding cam is extended, is carried
High fabric quality;
3. use return spring group, to not only so that heald frame under the action of the elastic-restoring force of return spring along
Heald frame saddle moves up and down, and shedding cam can also be made to be not easily disconnected from cam follower in opening process.
Description of the drawings
Fig. 1 is in the present embodiment for embodying connection relationship diagram between rack, heald frame, heald frame saddle, time comprehensive component;
Fig. 2 is the structural schematic diagram for embodying heald frame driving mechanism in the present embodiment.
In figure, 1, rack;2, heald frame saddle;3, heald frame;4, heald frame driving mechanism;41, driving motor;42, belt pulley;
43, transmission shaft;44, transmission gear;45, shedding cam;46, cam follower;5, bevel gear pair;51, cone pinion;52, gamp
Gear;53, gamp tooth wheel shaft;6, spur gear pair;61, small Spur gear;62, large straight gear;63, large straight gear axis;7, opening arm;
71, heald cord clamping seats;72, lifting-cord;73, pulley;8, comprehensive component is returned;81, comprehensive arm is returned;82, heald twine;83, return spring branch
Seat;84, return spring group.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
A kind of passive type cam shedding mechanism, as shown in Figure 1, including rack 1, be arranged in rack 1 heald frame saddle 2,
The heald frame 3 that is arranged on heald frame saddle 2, heald frame driving mechanism 4(Referring to Fig. 2)And return comprehensive component 8.
As shown in Fig. 2, heald frame driving mechanism 4 includes driving the belt pulley 42 of rotation, for installing skin by driving motor 41
The transmission shaft 43 of belt wheel 42 drives the opening of rotation convex with 43 coaxial mounted transmission gear 44 of transmission shaft, by transmission gear 44
Wheel 45 and the cam follower 46 rolled along 45 profile of shedding cam(Referring to Fig. 1), shedding cam 45 is eight cycles under five on three
Cam.Eight circulation openings cams 45 increase the kind accommodation of air-jet loom.
As shown in Fig. 2, transmission gear 44 includes bevel gear pair 5 and spur gear pair 6, and spur gear pair 6 and bevel gear pair 5
Transmission ratio is 1:8.Bevel gear pair 5 includes the cone pinion 51 being mounted on transmission shaft 43, large bevel gear 52 and big for installing
The gamp tooth wheel shaft 53 of bevel gear 52.Spur gear pair 6 includes and 52 coaxial mounted small Spur gear 61 of large bevel gear, large straight gear
62 and the large straight gear axis 63 for installing large straight gear 62, shedding cam 45 be co-axially mounted with large straight gear 62.Driving motor
41 driving belt pulleys 42 rotate so that are rotated with the coaxial mounted transmission shaft 43 of driven wheel of belt pulley 42, drive and be mounted on biography
Cone pinion 51 on moving axis 43 rotates, and when cone pinion 51 rotates, drives 52 turns of the large bevel gear engaged with cone pinion 51
It is dynamic, it rotates with 52 coaxial mounted small Spur gear 61 of large bevel gear to drive, when small Spur gear 61 rotates, drives and small straight-tooth
The large straight gear 62 of 61 engagement of wheel rotates, and is rotated with 62 coaxial mounted shedding cam 45 of large straight gear to drive.Small bevel gear
51 rotation of wheel, eight circle can drive large straight gear 62 to turn around, so that one circle of the rotation of shedding cam 45, realizes eight openings
Work station point, so as to weave the fabric of intricate detail.
As shown in Figure 1, shedding cam 45 drives an opening arm 7, cam follower 46 to be arranged in opening arm 7 through cam follower 46
Input terminal, the output end of opening arm 7 is equipped with heald cord clamping seats 71, is provided with a lifting-cord 72 on heald cord clamping seats 71, carries
Heald cord 72 is connect by pulley 73 with the hook of 3 lower end of heald frame.The abrasion of shedding cam 45 can be reduced equipped with cam follower 46,
Prolong the service life.Cam follower 46 rolls on 45 profile of shedding cam, to drive the realization of opening arm 7 to swing up and down, opens
Mouth arm 7 pulls lifting-cord 72 through heald cord clamping seats 71, and lifting-cord 72 drives heald frame 3 along heald frame through 73 converting motion direction of pulley
Saddle 2 declines.
As shown in Figure 1, it includes being arranged to return comprehensive arm 81, hook in 81 inside of time comprehensive arm in 1 top both sides of rack to return comprehensive component 8
Heald twine 82 between 3 upper end of heald frame, be arranged 1 outside of rack return spring bearing 83 and one end with return comprehensive arm 81
Outside connects, the return spring group 84 that the other end is connect with return spring bearing 83.Heald frame 3 pulls return spring when moving down
Group 84 so that return spring group 84 is stretched, and heald frame 3 heald frame saddle 2 in the elastic recovery force effect lower edge for returning comprehensive bullet group 84
Rise.Return spring group 84 is it is also possible that opening process split shed cam 45 is not easily disconnected from cam follower 46.
As shown in Figure 1, lifting-cord 72 and heald twine 82 are nylon steel wire rope, and nylon steel wire rope antirust, abrasion-resistant, softness
Property is good, tension bullet degree is big, can use for a long time, improves work efficiency.
Specific implementation process:Start driving motor 41, driving motor 41 drives belt pulley 42 to rotate, and belt pulley 42 rotated
Drive transmission shaft 43 to rotate in journey, to drive the cone pinion 51 being mounted on transmission shaft 43 to rotate, cone pinion 51 with it is big
Bevel gear 52 engages, and drives and is rotated with 52 coaxial mounted small Spur gear 61 of large bevel gear, small Spur gear 61 and large straight gear 62
Engagement drives shedding cam 45 to rotate.Shedding cam 45 rotates, and cam follower 46 is driven to be rolled on 45 profile of shedding cam,
To drive the realization of opening arm 7 to swing up and down, opening arm 7 pulls lifting-cord 72 through heald cord clamping seats 71, and lifting-cord 72 is through pulley
73 converting motion directions drive heald frame 3 to decline along heald frame saddle 2.Heald frame 3, which declines, stretches return spring group 84, when heald frame 3 not
When by 71 pulling force of lifting-cord, heald frame 3 is driven to rise along heald frame saddle 2 by the elastic-restoring force of return spring group 84.
Eight circle of the rotation of cone pinion 51 can drive large straight gear 62 to turn around, so that one circle of the rotation of shedding cam 45, realizes eight
A opening work station point, so as to weave the fabric of more multi items.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of passive type cam shedding mechanism, including rack (1), the heald frame saddle (2) being arranged in rack (1), setting exist
Heald frame (3), heald frame driving mechanism (4) on heald frame saddle (2) and return comprehensive component (8), the heald frame driving mechanism (4) include by
Driving motor (41) drives the belt pulley (42), the transmission shaft (43) for installing belt pulley (42) and transmission shaft (43) of rotation
Coaxial mounted transmission gear (44) is driven the shedding cam (45) rotated by transmission gear (44) and is taken turns along shedding cam (45)
The cam follower (46) that exterior feature rolls, the shedding cam (45) are driven by transmission gear (44) and are operated, it is characterized in that:The opening
Cam (45) is eight cycle cams.
2. a kind of passive type cam shedding mechanism according to claim 1, it is characterized in that:The eight cycles cam is on three
Five times eight circulation openings cams (45).
3. a kind of passive type cam shedding mechanism according to claim 2, it is characterized in that:The transmission gear (44) includes
The transmission ratio of bevel gear pair (5) and spur gear pair (6), the spur gear pair (6) and bevel gear pair (5) is 1:8.
4. a kind of passive type cam shedding mechanism according to claim 3, it is characterized in that:The bevel gear pair (5) includes
Cone pinion (51), large bevel gear (52) on transmission shaft (43) and the large bevel gear for installing large bevel gear (52)
Axis (53).
5. a kind of passive type cam shedding mechanism according to claim 4, it is characterized in that:The spur gear pair (6) includes
With large bevel gear (52) coaxial mounted small Spur gear (61), large straight gear (62) and for installing the big straight of large straight gear (62)
Gear shaft (63), the shedding cam (45) are co-axially mounted with large straight gear (62).
6. a kind of passive type cam shedding mechanism according to claim 5, it is characterized in that:The shedding cam (45) is through convex
It takes turns rotor (46) and drives an opening arm (7), cam follower (46) setting is in the input terminal of opening arm (7), the opening arm
(7) output end is equipped with heald cord clamping seats (71), and a lifting-cord (72) is provided on the heald cord clamping seats (71), described to carry
Heald cord (72) is connect by pulley (73) with the hook of heald frame (3) lower end.
7. a kind of passive type cam shedding mechanism according to claim 6, it is characterized in that:Described time comprehensive component (8) includes
Returning comprehensive arm (81), hooking and returning the heald twine on the inside of comprehensive arm (81) between heald frame (3) upper end for both sides is set at the top of rack (1)
(82), the return spring bearing (83) and one end being arranged on the outside of rack (1) are connect with the outside for returning comprehensive arm (81), the other end
The return spring group (84) being connect with return spring bearing (83).
8. a kind of passive type cam shedding mechanism according to claim 7, it is characterized in that:The lifting-cord (72) and harness threading
Rope (82) is nylon steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820123258.4U CN207998669U (en) | 2018-01-24 | 2018-01-24 | A kind of passive type cam shedding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820123258.4U CN207998669U (en) | 2018-01-24 | 2018-01-24 | A kind of passive type cam shedding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207998669U true CN207998669U (en) | 2018-10-23 |
Family
ID=63837874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820123258.4U Expired - Fee Related CN207998669U (en) | 2018-01-24 | 2018-01-24 | A kind of passive type cam shedding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207998669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629347A (en) * | 2019-09-29 | 2019-12-31 | 振德医疗用品股份有限公司 | Shedding mechanism for asymmetric shedding of loom |
| CN113073414A (en) * | 2020-01-03 | 2021-07-06 | 广野精机股份有限公司 | Ribbon frame speed change mechanism of ribbon loom |
-
2018
- 2018-01-24 CN CN201820123258.4U patent/CN207998669U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629347A (en) * | 2019-09-29 | 2019-12-31 | 振德医疗用品股份有限公司 | Shedding mechanism for asymmetric shedding of loom |
| CN113073414A (en) * | 2020-01-03 | 2021-07-06 | 广野精机股份有限公司 | Ribbon frame speed change mechanism of ribbon loom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181023 Termination date: 20210124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |