CN202479409U - Variable-speed moving mechanism of rack of spring machine - Google Patents
Variable-speed moving mechanism of rack of spring machine Download PDFInfo
- Publication number
- CN202479409U CN202479409U CN2012200493611U CN201220049361U CN202479409U CN 202479409 U CN202479409 U CN 202479409U CN 2012200493611 U CN2012200493611 U CN 2012200493611U CN 201220049361 U CN201220049361 U CN 201220049361U CN 202479409 U CN202479409 U CN 202479409U
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- tooth bar
- clutch
- screw
- gear
- rack
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Abstract
The utility model discloses a variable-speed moving mechanism of a rack of a spring machine, comprising the rack, two sliding seats, a connecting rod, a screw seat, a screw, a sliding block nut and a gear, wherein the rack is meshed with a clutch gear of a transmission device of a wire feeding wheel; the middle part of the rack is in pin-shaft connection with one end of the connecting rod; the rack is connected into the two sliding seats in a sliding manner; the sliding seats are fixedly arranged on a machine frame; the other end of the connecting rod is in pin-shaft connection onto the sliding block nut; the gear is fixedly arranged on the machine frame by a bearing; the gear and the screw seat are fixedly arranged on the same rotating shaft; the screw is connected onto the screw seat by a bearing; the sliding block nut is connected onto the screw seat by a sliding tenon and is in threaded connection with the screw; and when the screw rotates, the sliding block nut is driven to slide on the screw seat. The variable-speed moving mechanism disclosed by the utility model has the beneficial effects that the wire feeding wheel driven by the rack does variable-speed rotation, and at the moment when the wire feeding wheel starts to rotate and stops rotating, the acceleration and the speed are zero, so that the purpose of shock-free continuous steel-wire feeding is achieved, the proportion of the effective working time is large and the production efficiency is high.
Description
Technical field
The present invention relates to not have cutting metal silk forming machine, relate in particular to a kind of coiling machine tooth bar speed change travel mechanism, be applicable to
The transmission device of coiling machine Wire Wheel.
Background technology
The line sending transmission mechanism is every prerequisite critical component of wire spring winding machinery, on the Wire Wheel excircle configuration that pairing is provided with annular groove is arranged, and the mechanical type coiling machine is in the spring winding process; The line sending crop rotation is rotated at the uniform velocity in opposite directions, and steel wire is sandwiched in to be forced in a pair of or several grooves to Wire Wheel and sees off, moves to the direction of reel system; Push rod or the roller that diameter changing mechanism arranged on forward path is in several positions and go up from different directions steel wire is pushed; Change the direction of advance of steel wire, make steel wire coil coiled spring, after spring is reeled and accomplished; Stop line sending; Cutting knife and core cutter close up to be cut off the finished product spring from steel wire, Wire Wheel continues to carry steel wire then, carries out the coiling circulation of next round.Spring of every completion, Wire Wheel all must start and pause once, and inertia force is also more severe than normal wear to the parts damage that system's frequent impact is caused, and is especially true when the short spring that the coiling materials are not grown.And in the moment of start-stop, steel wire is the uncertain slippage of meeting generation degree in the Wire Wheel groove, influences the coiling precision of spring.When Wire Wheel was big to the clamping force of steel wire, steel wire can be pulled out cut to pulling firmly of Wire Wheel groove, influences the out-of-roundness of groove, causes follow-up line sending speed uncertain.
Need only ten/several seconds to the cutting-off process of steel wire, when the spring height is little, also be the required line sending length of each spring short the time, winding process also only needs several seconds, and too frequent stops and start-up course, causes part of short duration service life.And influence the production efficiency of coiling machine, make it can not bring into play the sharpest edges of automated production.
The high-grade coiling machine of up-to-date manufacturing also has the mechanism that adopts sector gear to cooperate the roller-type overrunning clutch line sending, and the shortcoming of this structure is that effective line sending time is few, and production efficiency is low, and the freewheel clutch life-span is short.Need to improve.
In view of this, the inventor has done further investigation to the Wire Wheel transmission device, has found solution finally, and therefore this case takes place.
Summary of the invention
The object of the present invention is to provide a kind of mechanism's----slider-crank mechanism that coiling machine line sending crop rotation speed change is rotated, the crank Design of length becomes adjustable, and slider designs becomes the tooth bar form; In the Wire Wheel rotating shaft that pairing is provided with, fixed a pair of freewheel clutch, this shell to freewheel clutch is provided with a pair of clutch gear with the tooth bar engagement, under the pulling of tooth bar, lets this that clutch teeth wheel drive Wire Wheel is done variable motion.The constant speed of crank is rotated, and moves as speed change by tooth bar through connecting rod.
During starting, tooth bar translational speed and acceleration all are zero, and tooth bar is started from scratch and done to quicken to move; Acceleration moves half stroke for just until tooth bar, just is fed to half the; Acceleration value is started from scratch by changing to maximum for a short time, diminishes until zero process from maximum again; The tooth bar translational speed is started from scratch, and has from little change greatly until the fastest process.
The back half stroke that tooth bar moves, second half section line sending just, tooth bar is done to slow down and is moved; Acceleration is accomplished to feeding for negative, and acceleration value is started from scratch; Big by changing to for a short time, little of the process that is zero from changing to greatly again, the tooth bar translational speed is from begin from large to small until zero process the soonest.
After every spring is reeled and accomplished, get into next circulation, in the pause moment of tooth bar moving direction conversion; Under cam control; Cutting knife and core cutter close up and cut off the finished product spring from steel wire, and the line sending crop rotation is quickened rotation and continued to carry steel wire then, carries out the coiling circulation of next round.This coordinated scheme, the spring accuracy of manufacture improves greatly, and the impact of mechanical system is significantly reduced.
To achieve these goals, technical scheme of the present invention is following:
Coiling machine tooth bar speed change travel mechanism comprises: tooth bar, slide, connecting rod, screw rodb base, screw mandrel, slider nut, gear;
The clutch gear engagement of said tooth bar and Wire Wheel transmission device is connected with an end bearing pin of connecting rod in the middle of the tooth bar; Tooth bar is slidingly connected in two slides, and slide is fixed on the frame;
The other end bearing pin of connecting rod is connected on the slider nut;
On frame, gear and screw rodb base are fixed in same the rotating shaft gear through bearing fixing; Screw mandrel is connected on the screw rodb base through bearing, and the sliding feather joint of slider nut is on screw rodb base, and slider nut is connected with wire rod thread, and during the screw mandrel rotation, the driving sliding block nut slides on screw rodb base.
As prioritization scheme:
The clutch gear engagement system of described tooth bar and Wire Wheel transmission device, the clutch gear of pairing can be distributed in the same side of tooth bar; Also can be distributed in the both sides of tooth bar; Tooth bar can vertically be installed, and also can level install; Two pairs of clutch gears can also be set in the both sides of tooth bar, and the clutch of freewheel clutch is in the opposite direction, and promptly the clutch direction of freewheel clutch should meet following principle: the clutch direction of diagonal angle clutch is consistent.
The invention has the beneficial effects as follows; During the gear rotation; Because tooth bar moving as speed change circularly, the Wire Wheel that receives rack drives is along with rotating as speed change, begins the moment of rotating and stopping operating at Wire Wheel; Its acceleration and speed all are 0; Reach not have and impact the purpose of carrying steel wire continuously, spring coiling precision is high, the part long service life; Because only at the instantaneous trip steel wire of tooth bar moving direction switching-over, all the other times all reel in continuous line sending, so the effective time ratio is big, production efficiency is high.
Description of drawings
Fig. 1 is a stereogram of the present invention;
Fig. 2 is the sketch map that is connected of tooth bar speed change travel mechanism of the present invention and Wire Wheel transmission device;
Fig. 3 is STRUCTURE DECOMPOSITION figure of the present invention;
Fig. 4 be embodiment 1 tooth bar and clutch gear be connected sketch map;
Fig. 5 be embodiment 2 tooth bar and clutch gear be connected sketch map;
Fig. 6 be embodiment 3 tooth bar and clutch gear be connected sketch map.
Description of reference numerals:
1 tooth bar, 2 slides, 3 connecting rods, 4 screw rodb bases, 5 screw mandrels, 6 slider nuts, 7 gears, 8 Wire Wheel transmission devices, 8-1 clutch gear.
The specific embodiment
Through accompanying drawing and embodiment the present invention is done further to set forth in detail below.
Embodiment 1
Structure of the present invention such as Fig. 1 mainly comprise tooth bar 1, slide 2, connecting rod 3, screw rodb base 4, screw mandrel 5, slider nut 6, gear 7 to shown in Figure 4.
Two clutch gear engagements of the left side of tooth bar 1 and Wire Wheel transmission device 8, the rotating shaft in the middle of the tooth bar 1 is connected through an end bearing pin of bearing and connecting rod 3; Tooth bar 1 is slidingly connected for 2 li at two slides, and slide 2 is fixed on the frame;
The other end bearing pin of connecting rod 3 is connected on the slider nut 6;
On frame, gear 7 and screw rodb base 4 are fixed on the two ends of same rotating shaft to gear 7 through bearing fixing; Screw mandrel 5 is connected on the screw rodb base 4 through bearing, and slider nut 6 sliding feather joints are on screw rodb base 4, and slider nut 6 is threaded with screw mandrel 5, and during screw mandrel 5 rotations, driving sliding block nut 6 slides on screw rodb base 4.
Operation principle of the present invention is:
Tooth bar of the present invention 1, slide 2, screw rodb base 4, slider nut 6, connecting rod 3 have been formed a slider-crank mechanism, and screw rodb base 4 is the equal of a crank.During gear 7 rotations; Co-axially fixed screw rodb base 4 is in company with rotation, and be fixed on slider nut 6 on the screw rodb base 4 and drag tooth bar 1 through connecting rod 3 and make to come and go speed change and move, and preceding 90 degree that begin from gear 1 dead angle; Tooth bar 1 is done to quicken to move; Back 90 degree tooth bars 1 are done retarded motion, and when arriving 180 degree positions, next dead angle, tooth bar 1 acceleration is 0; Spend to 270 from 180 and to spend the journey, tooth bar 1 moving direction is opposite, but translational speed is again the accelerated motion that changes, and spends to 360 degree from 270, and tooth bar 1 is done the retarded motion that changes.No matter tooth bar 1 is up mobile or moves down, and is all doing variable motion.In the moment that tooth bar 1 moving direction turns to, its acceleration all is zero, and through the control of cutting knife cam, in the pause moment of tooth bar 1 moving direction conversion, Wire Wheel stops the moment of line sending just, and cutting knife and core cutter close up and cut off the finished product spring from steel wire.
Rotation driving sliding block nut 6 through screw mandrel 5 moves on screw rodb base 4; Can regulate the length of crank, the length of crank is big, and then the shift motion of tooth bar 1 is also long; If the spring that materials being fabricated is long; Need only strengthen the stroke that tooth bar 1 moves and just can satisfy technological requirement, vice versa, and technology controlling and process is simply effective.
The invention has the beneficial effects as follows: control through the cutting knife cam; Make the pause moment of tooth bar moving direction conversion, cutting knife and core cutter close up and cut off the finished product spring from steel wire, can reach not have to impact the purpose of carrying steel wire continuously; Production efficiency is high, and line sending is steady and precision is high.
Referring to Fig. 5, the basic structure of present embodiment is identical with embodiment 1, only is that tooth bar 1 level is installed, and just can realize the vertical direction line sending.
Referring to Fig. 6; The basic structure of present embodiment is identical with embodiment 1; There is tooth on tooth bar 1 two sides; Only be that opposite side at tooth bar has increased a pair of Wire Wheel transmission device again, but the clutch of freewheel clutch is in the opposite direction, promptly the clutch direction of freewheel clutch should meet following principle: the clutch direction of diagonal angle clutch is consistent.Make line sending more effectively, more reliable, be suitable for carrying thicker wire.
The basic structure of present embodiment is identical with embodiment 3, only is that tooth bar 1 level is installed, and just can realize the vertical direction line sending.
Claims (5)
1. coiling machine tooth bar speed change travel mechanism is characterized in that: comprise tooth bar, slide, connecting rod, screw rodb base, screw mandrel, slider nut, gear;
The clutch gear engagement of said tooth bar and Wire Wheel transmission device is connected with an end bearing pin of connecting rod in the middle of the tooth bar; Tooth bar is slidingly connected in two slides, and slide is fixed on the frame;
The other end bearing pin of connecting rod is connected on the slider nut;
On frame, gear and screw rodb base are fixed in same the rotating shaft gear through bearing fixing; Screw mandrel is connected on the screw rodb base through bearing, and the sliding feather joint of slider nut is on screw rodb base, and slider nut is connected with wire rod thread, and during the screw mandrel rotation, the driving sliding block nut slides on screw rodb base.
2. coiling machine tooth bar speed change according to claim 1 travel mechanism, it is characterized in that: the clutch gear engagement system of described tooth bar and Wire Wheel transmission device, the clutch gear of pairing is distributed in the same side of tooth bar.
3. coiling machine tooth bar speed change according to claim 1 travel mechanism is characterized in that: the clutch gear engagement system of described tooth bar and Wire Wheel transmission device, and tooth bar is vertically installed, and the clutch gear of pairing is distributed in the both sides of tooth bar.
4. coiling machine tooth bar speed change according to claim 1 travel mechanism, it is characterized in that: the clutch gear engagement system of described tooth bar and Wire Wheel transmission device is that two pairs of clutch gears are set in the both sides of tooth bar; The clutch of freewheel clutch is in the opposite direction, and promptly the clutch direction of freewheel clutch should meet following principle: the clutch direction of diagonal angle clutch is consistent.
5. coiling machine tooth bar speed change according to claim 3 travel mechanism is characterized in that: the clutch gear engagement system of described tooth bar and Wire Wheel transmission device, and the tooth bar level is installed, and the clutch gear of pairing is distributed in the both sides of tooth bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200493611U CN202479409U (en) | 2012-02-16 | 2012-02-16 | Variable-speed moving mechanism of rack of spring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200493611U CN202479409U (en) | 2012-02-16 | 2012-02-16 | Variable-speed moving mechanism of rack of spring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479409U true CN202479409U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200493611U Expired - Fee Related CN202479409U (en) | 2012-02-16 | 2012-02-16 | Variable-speed moving mechanism of rack of spring machine |
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| Country | Link |
|---|---|
| CN (1) | CN202479409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527887A (en) * | 2012-02-16 | 2012-07-04 | 绍兴市家度弹簧机械有限公司 | Variable-speed moving mechanism of rack of coiling machine |
| CN104389972B (en) * | 2014-09-16 | 2017-03-08 | 上海龙腾机械制造有限公司 | A kind of roller bearing adjusting means and its using method |
| CN108842584A (en) * | 2018-05-28 | 2018-11-20 | 芜湖恒安钢结构有限公司 | A kind of automobile-used speed changing control mechanism of bulk transport ship deck scribing line |
-
2012
- 2012-02-16 CN CN2012200493611U patent/CN202479409U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527887A (en) * | 2012-02-16 | 2012-07-04 | 绍兴市家度弹簧机械有限公司 | Variable-speed moving mechanism of rack of coiling machine |
| CN104389972B (en) * | 2014-09-16 | 2017-03-08 | 上海龙腾机械制造有限公司 | A kind of roller bearing adjusting means and its using method |
| CN108842584A (en) * | 2018-05-28 | 2018-11-20 | 芜湖恒安钢结构有限公司 | A kind of automobile-used speed changing control mechanism of bulk transport ship deck scribing line |
| CN108842584B (en) * | 2018-05-28 | 2021-04-20 | 芜湖恒安钢结构有限公司 | Variable speed control mechanism for large-scale transport ship deck scribing vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20140216 |