CN105506810A - Jacquard transmission mechanism - Google Patents
Jacquard transmission mechanism Download PDFInfo
- Publication number
- CN105506810A CN105506810A CN201610049132.2A CN201610049132A CN105506810A CN 105506810 A CN105506810 A CN 105506810A CN 201610049132 A CN201610049132 A CN 201610049132A CN 105506810 A CN105506810 A CN 105506810A
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- driven shaft
- lever
- jacquard
- drive
- 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.)
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C3/00—Jacquards
- D03C3/24—Features common to jacquards of different types
- D03C3/32—Jacquard driving mechanisms
- D03C3/36—Griffe operating mechanisms
Abstract
The invention discloses a jacquard transmission mechanism. The jacquard transmission mechanism is characterized by comprising a transmission shaft, driven shafts, a rotating wheel and levers; a transmission wheel is arranged on the transmission shaft, and the transmission shaft drives the transmission wheel to rotate; one end of each lever is connected to the corresponding driven shaft, and the other end of each lever is matched with the transmission wheel; the outer circumferential surface of the transmission wheel directly presses against the other end of each lever or indirectly presses against the other end of each lever; in the rotating process of the transmission wheel, the other end of each lever is moved; the outer circumferential surface of the transmission wheel is provided with a first radian section and a second radian section; when the rotation center of the transmission wheel is taken as the circle center, radii of the first radian section are the same, and radii of the second radian section are different. According to the jacquard transmission mechanism, the transmission wheel is provided with the first radian section with the radii identical and the second radian section with the radii different, griffes are driven to move by the second radian section, and vertical hooks are driven by the griffes to hold for a certain time at the designated positions through the first radian section, so that the vertical hooks can be adsorbed by electromagnets or break away from adsorption conveniently.
Description
Technical field
The present invention relates to a kind of jacquard transmission mechanism.
Background technology
Jacquard weave is exactly that textiles is with the ridge design of Jing Xian ﹑ parallel staggered.As warp thread must be divided into two-layer up and down according to certain rule by the intertexture that will realize through, weft yarn, to form the passage that weft yarn passes, namely shed open, after shed open introduced by weft yarn, two-layer warp thread is again according to intertexture rule position alternatively up and down, form new shed open, parallel passes shed open again, to knit out ridge design.Machine in order to realize above-mentioned weaving is jacquard.In the jacquard course of work, drive unit relies on actuator drives to griffe motion, and griffing motion rear drive lifting-hook moves back and forth.Griffe lifting-hook to be delivered to electromagnet place, electromagnet adsorbs griffes and keeps the regular hour.After completing, electromagnet removes the absorption to lifting-hook, and lifting-hook is with griffing to return back to original position.Electromagnet is the parts relying on electric current to produce magnetic adsorptive power, relies on the control to electromagnet current, can determine whether it has the size of absorption affinity and absorption affinity.But in actual use, there is the phenomenon postponed in the generation that is logical and disconnected and magnetic force of electric current.Such as, when making it produce electromagnetic force to electromagnet energising, conduction time and magnetic force reach maximum or meet instructions for use and has the time interval.Otherwise it is also the same that power-off makes electromagnet lose magnetic force, and power-off time and magnetic force disappear have the time interval completely.Due to this feature of electromagnet, can cause occurring in the jacquard course of work cannot to hold the phenomenon of lifting-hook by electromagnet.When griffing lifting-hook to be delivered to electromagnet place, griffing to remove support to lifting-hook, if when now electromagnet magnetic force is not enough and cannot hold lifting-hook, but griffing and relieving the support to lifting-hook, lifting-hook will be caused like this cannot to remain on the position of needs.Light then cause self-figure quality to reduce, severe one causes machine to stop production, and could continue to use after reparation.When the suction needing electromagnet to remove lifting-hook, if electromagnet exists suction delay phenomenon, its magnetic force cannot disappear at once, and lifting-hook is still adsorbed, and now lifting-hook just cannot with griffing to decline.This situation can cause the quality of weaving cotton cloth equally.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of jacquard transmission mechanism making up electromagnet magnetic force and postpone the problem brought is provided.
For realizing above object, the present invention is achieved through the following technical solutions:
Jacquard transmission mechanism, is characterized in that, comprises power transmission shaft, driven shaft, runner and lever; Described drive is arranged on described power transmission shaft, and described power transmission shaft drives described drive to rotate; Described lever one end is connected on described driven shaft, and the other end matches with described drive; The outer peripheral face of described drive directly compresses the described lever other end or indirectly compresses the described lever other end; The described lever other end is made to move in described drive rotation process; Described drive outer peripheral face has the first radian section and the second radian section; With the pivot of described drive for the center of circle, described first radian section radius is identical, and described second radian section radius is not identical.
According to one embodiment of present invention, described first segmental arc is not identical with described second segmental arc radius.
According to one embodiment of present invention, described first segmental arc is more than two sections, and two section of first segmental arc radius is not identical.
According to one embodiment of present invention, the central angle of described first radian section is 1 °-80 °.
According to one embodiment of present invention, described drive is cam.
According to one embodiment of present invention, described drive is eccentric wheel.
According to one embodiment of present invention, the described lever other end is provided with roller, and described roller outer peripheral face contacts with described drive outer peripheral face; In described drive rotary course, compress described roller, make described roller drive described lever swing, during described lever swing, drive described driven shaft to rotate; Described runner is installed in rotation on described lever.
According to one embodiment of present invention, described jacquard transmission mechanism also comprises rocking arm and griffes frame, and described rocking arm is sleeved on described driven shaft; Described frame of griffing is connected with described rocking arm; Drive described rocking arm to swing in described driven shaft rotary course, described in driving when described rocking arm swings, griffe frame elevating movement.
According to one embodiment of present invention, described rocking arm comprises the first rocking arm and the second rocking arm, and described first rocking arm and the second rocking arm extend respectively to described driven shaft both sides; Described frame two ends of griffing are connected with described first rocking arm and the second rocking arm respectively.
According to one embodiment of present invention, described driven shaft number is two, is the first driven shaft and the second driven shaft; Griffing frame two ends is connected with the first rocking arm on the first driven shaft and the second rocking arm on the second driven shaft respectively, or griffes frame two ends and be connected with the second rocking arm on the first driven shaft and the first rocking arm on the second driven shaft respectively.
According to one embodiment of present invention, described rocking arm is connected by connecting rod with described frame of griffing.
According to one embodiment of present invention, also comprise frame, described driving shaft and described driven shaft are all installed in rotation in described frame.
According to one embodiment of present invention, the lever end on each driven shaft is provided with a rotating Connection Block; Connection Block on two levers is connected by connecting rod; Described power transmission shaft passes between two Connection Blocks.
According to one embodiment of present invention, also comprise elasticity reset device, described two Connection Blocks close to each other or away from time make described elasticity reset device be out of shape and produce elastic deformation force.
According to one embodiment of present invention, described elasticity reset device is spring; Described connecting rod end is provided with end cap; Described spring is provided with between described end cap and described Connection Block.
Jacquard transmission mechanism provided by the invention, drive is provided with the first identical segmental arc of radius second segmental arc different with radius, driven by the second segmental arc and griffe to move, make to griffe to drive lifting-hook to keep the regular hour in the position of specifying by the first segmental arc, facilitate lifting-hook held by electromagnet or depart from absorption.When energising or power-off, even if electromagnet exists magnetic force delay phenomenon, owing to griffe and lifting-hook now drives by the first segmental arc, the first segmental arc radius is identical, therefore griffe to remain unchanged the regular hour with the position of lifting-hook, for electromagnet magnetic force postpones to provide enough time.Such as, reach the 0.1 second time of maximum demand at electromagnet from being energized to magnetic force, the first segmental arc can make to griffe and lifting-hook be appointed as position keep 0.1 second constant, this makes it possible to guarantee that the position that lifting-hook is being specified is held by electromagnet.Electromagnet disappears the 0.1 second time of needs completely from being powered down to magnetic force, the first segmental arc make to griffe assigned address keep 0.1 second constant, this makes it possible to guarantee to griffe to catch lifting-hook after electromagnet magnetic force disappears completely, both move together.
The probability missing hook can be reduced 10%-15% by the present invention, reduces the probability that cloth produces skips problem, improves the quality of cloth.The present invention can utilize the first segmental arc, guarantees the maximum shed open retention time, guarantees that weft yarn passes through smoothly, reduces weft breakage rate, improves product percent of pass, guarantees product quality.The maximum shed open retention time stablizes, and also can guarantee weft yarn weft insertion device more smooth and easy turnover shed open when wefting insertion, avoid weft yarn weft insertion device to contact with warp thread, reduces weft yarn weft insertion device to warp thread damage by friction, avoids broken yarn.Improve product percent of pass, guarantee product quality.The reduction of weft breakage rate simultaneously, the minimizing of warp yarn friction damage, can reduce the replacing number of times of weft yarn and warp thread, thus production efficiency can be improved more than 2%.
The present invention utilizes two Connection Blocks to be connected by two lever ends, and roller and drive are in the state contacted all the time to utilize elasticity reset device to guarantee, and can guarantee two lever interlocks.Two lever interlocks, can make shed open opening larger, facilitate weft yarn to pass.
Accompanying drawing explanation
Fig. 1 is the jacquard transmission mechanism structural representation in the present invention, not shown two Connection Blocks and the structure for connecting two Connection Blocks.
Fig. 2 is the jacquard transmission mechanism side view in the present invention, there is shown two Connection Blocks and the structure for connecting two Connection Blocks.
Fig. 3 is power transmission shaft in the present invention, driven shaft and with griffe the matching relationship schematic diagram of frame.
Fig. 4 is power transmission shaft in the present invention and driven shaft matching relationship schematic diagram.
Fig. 5 is Fig. 4 structural representation from another angle views.
Fig. 6 is the side view of Fig. 4.
Fig. 7 is the drive side view in the present invention.
Fig. 8 is displacement size and the corresponding time relationship coordinate diagram of roller.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figures 1 to 7, jacquard transmission mechanism 100, it comprises power transmission shaft 110, driven shaft 120 and frame 170.Power transmission shaft 110 and driven shaft 120 are all installed in rotation in frame 170.Driven shaft 120 number is two, apportion power transmission shaft 110 both sides.Described power transmission shaft 110 is provided with drive 130.Described power transmission shaft 110 runs through described drive 130, and described power transmission shaft 110 drives described drive 130 to rotate.The outer peripheral face 133 of described drive 130 has the first radian section 131 and the second radian section 132.With the pivot O of described drive 130 for the center of circle, described first radian section 131 radius is identical, and described second radian section 132 radius is not identical.The radius of the first segmental arc is not identical with the radius of the second segmental arc.Outer peripheral face 133 both only can comprise one section of first segmental arc 131 and one section of second segmental arc 132.First segmental arc 131 and the second segmental arc 132 form the outer peripheral face of 360 °.Outer peripheral face 133 can also comprise multistage first segmental arc 131 and multistage second segmental arc 132, first segmental arc 131 and the second segmental arc 132 interval and arrange.In preferred exemplary as shown in the figure, the first segmental arc 131 and the second segmental arc 132 respectively have two sections.Two section of first segmental arc 131 radius is not identical.Wherein one section of first segmental arc 131 central angle is A1, and radius is R1; Another section second segmental arc 131 central angle is A2, and radius is R2.Radius R 2 is not identical with radius R 1.The radius change of two section of second segmental arc 132 is identical or not identical.In example as shown in the figure, the radius change trend of two section of second segmental arc 132 is identical.Adapt with the first segmental arc 131 and the second segmental arc 132, when described power transmission shaft 110 drives described drive 130 to rotate, make the outer peripheral face 133 of described drive 130 along a curved trajectory; The rotational trajectory of described drive 130 outer peripheral face comprises the first identical orbit segment of radius second orbit segment not identical with radius.Central angle A1, A2 of described first radian section 131 determine according to requirements, and it can be 1 °-80 °, are preferably 10 °-30 °.Corresponding, the central angle of described first orbit segment is 1 °-80 °, is preferably 10 °-30 °.In addition, the arc length of the first segmental arc 131 and the second segmental arc 132 can be determined according to actual operation requirements, and it does not necessarily form the outer peripheral face of 360 °.
According to the present invention, described drive 130 can be set to cam or eccentric wheel.Described curvilinear path is the curve of rule and/or irregular curve.The outer circumference surface of described drive 130 directly contacts with described driven shaft 120 or indirectly connects; Described drive 130 outer peripheral face moves for driving described driven shaft 120.
In example as shown in the figure, described jacquard transmission mechanism 100 also comprises two levers 140.Each described lever 140 one end 141 is provided with roller 142, and the other end 143 is connected with one of them driven shaft 120.Described roller 142 outer peripheral face contacts with described drive 130 outer peripheral face.In described drive 130 rotary course, outer peripheral face 133 compresses described roller 142, makes described roller 142 drive described lever 140 to swing, drives described driven shaft 120 to rotate when described lever 140 swings.Described runner 142 is installed in rotation on described lever 140.
Every root lever 140 is provided with a Connection Block 171.Connection Block 171 is installed in rotation on lever 130.Power transmission shaft 110 passes between two Connection Blocks 171.Two Connection Blocks 171 are connected by connecting rod 172.Connecting rod 172 end is provided with end cap 173.Connecting rod 172 is set with spring 174.Spring 174 is between end cap 173 and Connection Block 171.
Every root driven shaft 120 is provided with two groups of rocking arms 150, often organizes rocking arm 150 and comprise the first rocking arm 151 and the second rocking arm 152.Two groups of rocking arm 150 intervals are arranged.First rocking arm 151 and the second rocking arm 152 extend to both sides respectively from driven shaft 120.First rocking arm 151 end is connected a connecting rod 153 respectively with the second rocking arm 152 end.Connecting rod 153 one end is connected with the first rocking arm 151 or the second rocking arm 152, and the other end is connected to griffes frame 160 one end.Along griffing frame 160 length direction, griffing frame 160 two ends connects from the first rocking arm 151 on different driven shaft 120 and the second rocking arm 152 respectively.Such as, one of them is griffed frame 160 two ends and is connected with the first rocking arm 151 on the first driven shaft 121 and the second rocking arm 152 on the second driven shaft 122 respectively.Another is griffed frame 160 two ends and is connected with the second rocking arm 152 on the first driven shaft 121 and the first rocking arm 152 on the second driven shaft 122 respectively.Two groups of rocking arms 150 are respectively used to connection four and griffe frame 160.Griffe frame 160 for install griffe 180.Every root is griffed 180 two ends and is connected to two and griffes on frame 160.Each frame 160 of griffing can be connected with along its length and multiplely griffes 180.Only illustrate in figure and wherein griffe 180 for four.
Drive unit drives power transmission shaft 110 to rotate.Power transmission shaft 110 drives drive 130 to rotate.In drive 130 rotation process, runner 142 is vertically moved up and down.Thus drive driven shaft 120 to rotate.As shown in Figure 8, when roller 142 contacts with the first segmental arc 131 at radius being R1, its displacement is zero; Then roller 142 contacts with the second segmental arc 132, and its displacement increases to maximum gradually.Then be that first segmental arc 131 of R2 contacts with radius, make roller 142 keep certain hour at displacement maximum, and then contact with the second segmental arc 132, it is that starting point is got back at zero place that its displacement drops to displacement gradually.Corresponding with roller 142 displacement, driven shaft 120 rotates along with the displacement of roller 142.The rotational angle of driven shaft 120 and the displacement size positive correlation of roller 142.When driven shaft 120 rotates, driving the first rocking arm 151 and the second rocking arm 152 to rotate, make to griffe frame 160 one end rises, the other end declines, also making along griffing the rising griffed of frame 160 length direction distribution, some decline.Make the less situation of the driven shaft rotation amplitude in the present invention that shed open can be made to open amplitude larger.
When the present invention uses, and non-required power transmission shaft 110 drives drive 130 according to 360 ° of rotations.It also can only rotate a certain angle.Such as, the roller 142 coordinated with the first driven shaft 121 is made to be only that first segmental arc 131 of R1 contacts with wherein one section of second segmental arc 132 with radius; And the first segmental arc that the roller 142 that coordinates with the second driven shaft 122 and radius are R2 is contacted with another section second segmental arc 132.Power transmission shaft 110 moves in circles mobile back and forth.
Upper and lower, left and right in the present invention are all reference with Fig. 6, for clearly describing the present invention and the relative concept used, do not form the restriction to right.
Embodiment in the present invention, only for the present invention will be described, does not form the restriction to right, other equivalent in fact substituting, all in scope that those skilled in that art can expect.
Claims (15)
1. jacquard transmission mechanism, is characterized in that, comprises power transmission shaft, driven shaft, runner and lever; Described drive is arranged on described power transmission shaft, and described power transmission shaft drives described drive to rotate; Described lever one end is connected on described driven shaft, and the other end matches with described drive; The outer peripheral face of described drive directly compresses the described lever other end or indirectly compresses the described lever other end; The described lever other end is made to move in described drive rotation process; Described drive outer peripheral face has the first radian section and the second radian section; With the pivot of described drive for the center of circle, described first radian section radius is identical, and described second radian section radius is not identical.
2. jacquard transmission mechanism according to claim 1, is characterized in that, described first segmental arc is not identical with described second segmental arc radius.
3. jacquard transmission mechanism according to claim 1 and 2, is characterized in that, described first segmental arc is more than two sections, and two section of first segmental arc radius is not identical.
4. jacquard transmission mechanism according to claim 1, is characterized in that, the central angle of described first radian section is 1 °-80 °.
5. jacquard transmission mechanism according to claim 1, is characterized in that, described drive is cam.
6. jacquard transmission mechanism according to claim 1, is characterized in that, described drive is eccentric wheel.
7. jacquard transmission mechanism according to claim 1, is characterized in that, the described lever other end is provided with roller, and described roller outer peripheral face contacts with described drive outer peripheral face; In described drive rotary course, compress described roller, make described roller drive described lever swing, during described lever swing, drive described driven shaft to rotate; Described runner is installed in rotation on described lever.
8. jacquard transmission mechanism according to claim 1, is characterized in that, described jacquard transmission mechanism also comprises rocking arm and griffes frame, and described rocking arm is sleeved on described driven shaft; Described frame of griffing is connected with described rocking arm; Drive described rocking arm to swing in described driven shaft rotary course, described in driving when described rocking arm swings, griffe frame elevating movement.
9. jacquard transmission mechanism according to claim 8, is characterized in that, described rocking arm comprises the first rocking arm and the second rocking arm, and described first rocking arm and the second rocking arm extend respectively to described driven shaft both sides; Described frame two ends of griffing are connected with described first rocking arm and the second rocking arm respectively.
10. jacquard transmission mechanism according to claim 10, is characterized in that, described driven shaft number is two, is the first driven shaft and the second driven shaft; Griffing frame two ends is connected with the first rocking arm on the first driven shaft and the second rocking arm on the second driven shaft respectively, or griffes frame two ends and be connected with the second rocking arm on the first driven shaft and the first rocking arm on the second driven shaft respectively.
Jacquard transmission mechanism described in 11. according to Claim 8,9 or 10, is characterized in that, described rocking arm is connected by connecting rod with described frame of griffing.
12. jacquard transmission mechanisms according to claim 1, is characterized in that, also comprise frame, described driving shaft and described driven shaft are all installed in rotation in described frame.
13. jacquard transmission mechanisms according to claim 1, is characterized in that, the lever end on each driven shaft is provided with a rotating Connection Block; Connection Block on two levers is connected by connecting rod; Described power transmission shaft passes between two Connection Blocks.
14. jacquard transmission mechanisms according to claim 13, is characterized in that, also comprise elasticity reset device, described two Connection Blocks close to each other or away from time make described elasticity reset device be out of shape and produce elastic deformation force.
15. jacquard transmission mechanisms according to claim 14, is characterized in that, described elasticity reset device is spring; Described connecting rod end is provided with end cap; Described spring is provided with between described end cap and described Connection Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049132.2A CN105506810A (en) | 2016-01-25 | 2016-01-25 | Jacquard transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049132.2A CN105506810A (en) | 2016-01-25 | 2016-01-25 | Jacquard transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105506810A true CN105506810A (en) | 2016-04-20 |
Family
ID=55715097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610049132.2A Pending CN105506810A (en) | 2016-01-25 | 2016-01-25 | Jacquard transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105506810A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245182A (en) * | 2016-08-31 | 2016-12-21 | 杭州华纺布艺有限公司 | Double-beam jacquard |
| CN107700014A (en) * | 2017-10-30 | 2018-02-16 | 江苏莱纳多智能装备有限公司 | A kind of jacquard lifting knives eccentric drive mechanism |
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| CN107700014A (en) * | 2017-10-30 | 2018-02-16 | 江苏莱纳多智能装备有限公司 | A kind of jacquard lifting knives eccentric drive mechanism |
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Application publication date: 20160420 |