CN206665757U - The layboy of printing machine - Google Patents
The layboy of printing machine Download PDFInfo
- Publication number
- CN206665757U CN206665757U CN201720180516.8U CN201720180516U CN206665757U CN 206665757 U CN206665757 U CN 206665757U CN 201720180516 U CN201720180516 U CN 201720180516U CN 206665757 U CN206665757 U CN 206665757U
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- CN
- China
- Prior art keywords
- layboy
- distance
- drive device
- signal
- printing machine
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Abstract
The utility model discloses a kind of layboy of printing machine, solve the problems, such as that existing printing machine can not ensure that the paper on layboy is always positioned in the adsorbable scope of sucker, its drip irrigation device is, including layboy, elevating mechanism, drive device, sucker and infrared ray range sensor, also include the threshold value comparing unit for being preset with maximal distance threshold and minimum threshold of distance, and when distance signal is less than minimum threshold of distance, export stop signal；When distance signal is more than maximal distance threshold, open signal is exported；And the drive device control unit of opening time is preset with, and control drive device to start when receiving open signal and drive elevating mechanism to rise；Drive device is controlled to stop when receiving stop signal；The utility model has the advantages of paper on layboy can be made to be always positioned within the adsorption range of sucker.
Description
Technical field
Printer technology field is the utility model is related to, relates more specifically to the layboy of printing machine.
Background technology
Printing machine needs to use sucker constantly to draw paper from layboy in running hours, and is transported to printing work
Platform prints.In order that sucker smoothly can draw paper, it is necessary to make paper on layboy be in the absorption scope of sucker all the time
It is interior.
Utility model content
The purpose of this utility model is to provide a kind of layboy of printing machine, and paper on layboy can be made all the time by having
The advantages of within the adsorption range of sucker.
Above-mentioned purpose of the present utility model technical scheme is that：
A kind of layboy of printing machine, including layboy, for drive elevating mechanism that the layboy rises or falls,
Drive drive device that the elevating mechanism rises or falls, be arranged on the layboy top sucker and towards institute
State layboy to set for detecting the distance of the top layer paper on the layboy and the sucker, and export distance signal
Infrared ray range sensor, in addition to threshold value comparing unit, maximal distance threshold and minimum threshold of distance are preset with, and electrically connected
The infrared ray range sensor is connected to receive the distance signal, and be less than the minimum range threshold in the distance signal
During value, stop signal is exported；When the distance signal is more than the maximal distance threshold, open signal is exported；
Drive device control unit, it is preset with opening time and is electrically connected at the threshold value comparing unit, and is receiving
The drive device is controlled to start during to the open signal to drive the elevating mechanism to rise；The drive device control is single
Member controls the drive device to stop when receiving the stop signal in the opening time.
Using such scheme, paper height gradually reduction, and being reduced under the suction effect of sucker on layboy
When beyond the adsorbable ultimate range of sucker, infrared ray range sensor exports open signal to drive device control unit, drives
Dynamic device control units control drive device is opened and drives elevating mechanism to rise；When the paper on layboy rises to sucker can
When within the minimum range of absorption, infrared ray range sensor exports stop signal to drive device control unit, fills driving
Put stopping；By said process, the paper on layboy can be made to be always positioned in the adsorption range of sucker, realize printing machine
Work continuously.
Preferably, the drive device control unit includes being preset with opening time and is electrically connected at the threshold value ratio
Compared with unit to receive the monostable flipflop of the open signal, the threshold value comparing unit is electrically connected to receive described stop
First relay of stop signal, and it is electrically connected at the second relay of the monostable flipflop.
Using such scheme, monostable flipflop makes the second relay obtain electric, drive device after open signal is received
Start to drive elevating mechanism to rise, so that the paper on layboy is close to sucker, when the distance of paper and sucker is less than most
During small distance threshold value, the first relay, which receives stop signal control drive device, to be stopped.
Preferably, the monostable flipflop includes 555 timing chips.
Preferably, the threshold value comparing unit includes being preset with the first comparator of maximal distance threshold and preset
There is the second comparator of minimum threshold of distance.
Preferably, the elevating mechanism includes being arranged at the both sides of the layboy and offers the supporting plate of guide rail,
The layboy sliding is connected in the guide rail, and the elevating mechanism also includes fixing with the layboy by fixed pulley connecting
The drive device is restricted and be fixedly connected on to the winding connect for the winding wheel for the winding rope winding.
Using such scheme, drive winding wheel to rotate when drive device starts, make the winding of winding rope to winding wheel, and band
Dynamic elevating mechanism rises.
Preferably, offer two parallel guide rails along the vertical direction of the supporting plate.
Using such scheme, there is the advantages of stationarity for keeping layboy.
In summary, the utility model has the advantages that：
By being preset with the threshold value comparing unit of maximal distance threshold and minimum threshold of distance, in infrared ray range sensor
When detecting that the paper on layboy exceeds maximal distance threshold, output open signal to monostable flipflop, control driving dress
Put and open and drive elevating mechanism to rise, so that the paper on layboy is close to sucker；It is less than in the distance of paper and sucker
During minimum threshold of distance, infrared ray range sensor, which exports stop signal to the first relay, control drive device, to be stopped；Pass through
Said process so that the paper on layboy is always positioned in the range of the drawing of sucker, it is achieved thereby that printing machine is continuous
Operation, improve the operating efficiency of printing machine.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is that the circuit of infrared ray range sensor, threshold value comparing unit, drive device control unit and drive device connects
Connect graph of a relation.
In figure, 10, supporting plate；20th, layboy；30th, baffle plate；40th, motor；50th, winding wheel；60th, fixed pulley；70th, install
Crossbeam；80th, sucker；90th, infrared ray range sensor；100th, weight sensor；110th, winding rope；120th, threshold value comparing unit；
130th, monostable flipflop；11st, guide rail；21st, sliding block.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of layboy of printing machine, referring to Fig. 1, including two pieces of supporting plates 10 being oppositely arranged, for ease of seeing in Fig. 1
Structure inside supporting plate 10, the supporting plate 10 in left side is hidden, two pieces of supporting plates 10 are identical symmetrical structure, see that right side is propped up
Fagging 10, supporting plate 10 are vertically provided with two parallel guide rails 11, layboy 20, heap are provided between two pieces of supporting plates 10
The edge of paper platform 20 is provided with is connected to sliding block 21 in guide rail 11 for sliding, guiding layboy 20 between supporting plate 10 on
Under swimmingly slide lifting.
Also there is one piece of baffle plate 30, the rear side of baffle plate 30 is provided with motor 40, the output of motor 40 between two pieces of supporting plates 10
Axis connection has winding wheel 50, and an opening is offered on baffle plate 30, and fixed pulley 60 is rotatably connected in opening, winding rope 110
It is connected to after one end connection layboy 20 by the commutation of fixed pulley 60 on winding wheel 50, heap can be controlled by the rotating of motor 40
The lifting of paper platform 20 is to change the height of layboy 20.
The top of two pieces of supporting plates 10 has installation crossbeam 70, and installation crossbeam 70 is provided with sucker 80 and for detecting heap
Pile top layer on paper platform 20 is additionally provided with for detecting on layboy 20 from the infrared ray range sensor 90 with a distance from sucker 80
The weight sensor 100 of the weight of pile.
Referring to Fig. 2, illustrate according to the testing result of infrared ray range sensor 90 and weight sensor 100 to motor 40
Carry out rotating control circuit part, the 3rd relay coil KT3 not it is electric when, its DPDT contact maintain often
State, its DPDT contact are closed upwards, and normally closed interlock KM1 and normally open contact KM2 and motor 40 are cascaded composition
Forward loop.
Circuit part also includes the threshold value comparing unit 120 of the distance signal of the output of input infrared ray range sensor 90,
Threshold value comparing unit 120 includes first comparator U1, the second comparator U2, first comparator U1 and the second comparator U2 and used
Comparator LM393, first comparator U1 are preset with reference voltage Vref 1 as upper limit comparing unit, its inverting input,
Vref1 is minimum threshold of distance of the top layer from sucker 80 of pile, and its in-phase input end receiving infrared-ray range sensor 90 is defeated
The distance signal gone out, when distance signal is less than Vref1, its output end output low level, the first triode Q1 cut-offs, the first relay
Device coil KM1 dead electricity, its normally closed interlock keep normally closed.
Second comparator U2 is as lower limit comparing unit, its in-phase input end predetermined reference voltage Vref2, Vref2 representative
The maximal distance threshold that can be drawn by sucker 80.When the pile on layboy 20 is siphoned away by sucker 80, the height of pile is gradual
During decline, can slowly depart from sucker 80 can sphere of action.Equally, distance signal also correspondingly reduces, when distance signal is less than
Vref2, then the second comparator U2 output end output high level, after reverser is reverse, 555 timing chips of triggering are formed
Single-shot trigger circuit, the 3 pin output high level of 555 chips simultaneously continue the time of a temporary stable state, trigger the second of its connection
Triode Q2 is turned on, and the second relay coil KM2 obtains electric, now normally open contact KM2 closures of the second relay, thus motor 40
Electric rotation is obtained, referring now to Fig. 1, winding wheel 50, which rotates counterclockwise, makes winding rope 110 wind on winding wheel 50, and drives heap paper
Platform 20 rises a segment distance；If layboy 20 rise after when the top layer of pile is less than minimum threshold of distance, referring back to Fig. 2,
Then first comparator U1 output end output high level, the first triode Q1 conductings, the coil KM1 of the first relay obtain it is electric, the
The normally-closed contact KM1 of one relay cut-offs, you can disconnects the forward loop of motor 40, prevents the top of pile is pushed up from arriving sucker 80.
Thus, the present embodiment is realized to the top layer of pile from the scope control with a distance from sucker 80, neither breaks sucker
80, and can maintains pile to be located in the range of sucker 80 can act on.
In addition, the paper of pile be gradually sucked away exhaust when, it is necessary to manually plus paper, the weight sensing on layboy 20
The weight signal that device 100 is detected output is inputted to the 3rd comparator U3 inverting input, U3 in-phase input end and preset
Reference voltage Vref 3, Vref3 represent the minimum weight threshold value of pile；When the weight of pile reduces, weight signal is accordingly decreased to
During less than Vref3, the 3rd comparator U3 output high level, the 3rd triode Q3 conductings, the coil KT3 of the 3rd relay obtain it is electric,
At once closure turns on the return circuit of motor 40 to its DPDT contact downwards, and now motor 40 is with being located at the bottom of supporting plate 10
Travel switch SQ connects, and motor 40 inverts.Referring now to Fig. 1, winding wheel 50, which rotates clockwise, makes winding rope 110 depart from winding wheel
50, so as to drive layboy 20 to decline, until layboy 20 touches travel switch SQ, the return circuit of triggering motor 40 disconnects.
Now layboy 20 is located at bottom and is in paper-like state to be added, after manually increasing new pile to layboy 20, the forward direction of motor 40
Loop turns on again.
To sum up, the present embodiment can carry out the elevating control of intelligence to pile, and maintain safe can be drawn by sucker 80
In the range of, while when paper is drawn and finished, driving layboy 20 drops to bottom automatically, paper-like state to be added is maintained, so as to realize
The automatic lifting control of layboy 20.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (6)
1. a kind of layboy of printing machine, including layboy (20), the liter for driving the layboy (20) to rise or fall
Drive device that descending mechanism, the driving elevating mechanism rise or fall, be arranged on the layboy (20) top sucker
(80) and towards the layboy (20) set for detecting the top layer paper on the layboy (20) and the sucker
(80) distance, and the infrared ray range sensor (90) of distance signal is exported, it is characterized in that：Also include
Threshold value comparing unit (120), is preset with maximal distance threshold and minimum threshold of distance, and is electrically connected at the infrared ray
Range sensor (90) exports to receive the distance signal, and when the distance signal is less than the minimum threshold of distance
Stop signal；When the distance signal is more than the maximal distance threshold, open signal is exported；
Drive device control unit, it is preset with opening time and is electrically connected at the threshold value comparing unit (120), and is receiving
The drive device is controlled to start during to the open signal to drive the elevating mechanism to rise；The drive device control is single
Member controls the drive device to stop when receiving the stop signal in the opening time.
2. the layboy of printing machine according to claim 1, it is characterized in that：The drive device control unit includes default
There is opening time and be electrically connected at the threshold value comparing unit (120) to receive the monostable flipflop of the open signal
(130) the threshold value comparing unit (120), is electrically connected to receive the first relay of the stop signal, and electrically
It is connected to the second relay of the monostable flipflop (130).
3. the layboy of printing machine according to claim 2, it is characterized in that：The monostable flipflop (130) includes 555
Timing chip.
4. the layboy of printing machine according to claim 1, it is characterized in that：The threshold value comparing unit (120) includes pre-
First comparator provided with maximal distance threshold and the second comparator for being preset with minimum threshold of distance.
5. the layboy of printing machine according to claim 1, it is characterized in that：The elevating mechanism includes being arranged at the heap
The both sides of paper platform (20) and the supporting plate (10) for offering guide rail (11), layboy (20) sliding are connected to the guide rail
(11) in, winding rope (110) that the elevating mechanism also includes being fixedly connected with the layboy (20) by fixed pulley (60),
And it is fixedly connected on winding wheel (50) of the drive device for (110) winding of being restricted for the winding.
6. the layboy of printing machine according to claim 5, it is characterized in that：Opened along the vertical direction of the supporting plate (10)
Provided with two parallel guide rails (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180516.8U CN206665757U (en) | 2017-02-27 | 2017-02-27 | The layboy of printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180516.8U CN206665757U (en) | 2017-02-27 | 2017-02-27 | The layboy of printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206665757U true CN206665757U (en) | 2017-11-24 |
Family
ID=60378813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720180516.8U Expired - Fee Related CN206665757U (en) | 2017-02-27 | 2017-02-27 | The layboy of printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206665757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341285A (en) * | 2018-01-12 | 2018-07-31 | 北京印刷学院 | A kind of conveyer |
| CN108408442A (en) * | 2018-01-12 | 2018-08-17 | 北京印刷学院 | A kind of longitudinal direction conveyer |
-
2017
- 2017-02-27 CN CN201720180516.8U patent/CN206665757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341285A (en) * | 2018-01-12 | 2018-07-31 | 北京印刷学院 | A kind of conveyer |
| CN108408442A (en) * | 2018-01-12 | 2018-08-17 | 北京印刷学院 | A kind of longitudinal direction conveyer |
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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: 20171124 Termination date: 20210227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |