CN2500446Y

CN2500446Y - Automatic speed adjustor for cutter feeding of cutter frame on rotary cutting machine

Info

Publication number: CN2500446Y
Application number: CN 01259484
Authority: CN
Inventors: 舒良
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-28
Filing date: 2001-08-28
Publication date: 2002-07-17
Anticipated expiration: 2011-08-28

Abstract

The utility model discloses an automatic speed regulation device for knife feed of a rotary cutter knife rest, which includes a stander (8), a knife rest (7) and an asynchronous motor (6) driving the feed of the knife rest, as well as a connected data collection device detecting the spindle pulse count of the asynchronous motor, a control computer (3) receiving the data from the data collection device and calculating the knife rest feed speed according to the relation curve of the knife position and the knife rest feed speed, a frequency converter (5) receiving the signal from the control computer (3) and adjusting the rotate speed of the asynchronous motor. The data collection device consists of a starting datum device (12) determining the knife rest position starting datum point provided on the stander and an electrical motor rotary pulse detection device (2) coordinated with the asynchronous motor. When the knife rest advances and touches the starting datum device (12), the starting datum device (12) will send signal to the pulse detection device (2), which starts to detect. The device could realize real time tracking of round log diameter and could cut out even wood chips.

Description

A kind of peeler knife rest feed automatic speed-regulating device

The utility model belongs to B27C5 woodworking machinery class in the International Patent Classification (IPC), and it discloses a kind of timber lathe knife rest feed arrangements for speed regulation, especially can be by the self-regulating peeler knife rest feed automatic speed-regulating device of setting value with a kind of knife rest feed velocity.

Along with decoration, repairs profession flourish, requirement to the timber crudy is also more and more higher, and the feed automatic speed-regulating device during to the timber lathe rotary-cut of prior art work, as the utility model patent of Patent Office of the People's Republic of China at the 2000.8.30 bulletin, the application number of this patent is 99246005.0, the applying date is 1995.10.5, the patentee be Wei pavilion quick, denomination of invention for " peeler knife rest feed automatic speed-regulating device " disclosed technical scheme of this utility model is: the knife rest motion adopts buncher to pass through transmission system drives, when knife rest is in cutting movement, the motion of touching plate with the curve that is fixed on the knife rest, promote and the close-fitting Push Rod Rack that is installed on the support of curve, and drive and its meshed gears axle rotation, the variation of the rotation amount by the tooth rotating shaft changes the resistance of potentiometric controller, thereby regulate the moment rotating speed of variable-speed motor, reach the purpose of regulating the knife rest feed velocity, its structure as shown in Figures 1 and 2, the defective that the technical scheme of the disclosed knife rest feed automatic speed-regulating of above-mentioned patent document device exists is:

1, because curve is touched plate and contacted cooperation with knife rest for a long time, causes wearing and tearing easily, its quality of fit is reduced, cause the timber crudy to descend;

2, because peeler belongs to relatively large woodworking machinery, there is bigger vibration in the course of the work, the quality of fit that also can make knife rest and curve touch plate reduces, thereby also has influence on the quality of institute's converted timber.

At above-mentioned defective, the purpose of this utility model is to provide a kind of peeler feed automatic speed-regulating device, it is touched contacting of plate with knife rest and curve and cooperates the control feed velocity to become computer calculating and control feed velocity automatically, has increased the quality of the wood chip of being processed greatly.

For reaching above-mentioned purpose, the technical solution of the utility model is as follows:

A kind of peeler knife rest feed automatic speed-regulating device, comprise frame 8, knife rest 7 and drive the parts such as asynchronous machine 6 of knife rest feeding, described automatic speed governing device also comprise interconnective detection asynchronous machine main shaft umber of pulse data acquisition unit, receive data acquisition unit data and by the relation curve of knife rest position and knife rest feed speed draw the required feed speed of knife rest control computer 3, receive the signal of controlling computer 3 and the frequency converter (5) of regulating the asynchronous machine rotating speed; Described data acquisition unit determines on the frame that by being located at a survey device 12 of measuring point is played in the knife rest position, the motor rotational pulse checkout gear 2 that cooperates with the asynchronous machine main shaft is formed, touched during the knife rest feeding and surveyed device 12, play survey device 12 and send signal to pulse detecting equipment 2, pulse detecting equipment 2 begins to detect.

Described motor rotational pulse checkout gear 2 is the electromagnetic induction switch that cooperates with the asynchronous machine main shaft.

The survey device 12 that rises that measuring point is played in described definite knife rest position is the one stroke switch, it is provided with in frame upper edge knife rest direction of feed with other two travel switch, wherein, the travel switch 11 of being located at the one end is the least limit switch for greatest limit switch, the travel switch 13 of being located at the other end.

Owing to adopt said structure, during the utility model work, calculate the position at knife rest place by the rotational pulse number that detects the feed electric machine main shaft, calculate the required feed tachometer value of corresponding points by computer real-time again, be transferred to the Frequency Converter Control asynchronous motor speed, solve the error that wearing and tearing that template control causes and vibration cause, realized real-time tracking log diameter, cut out uniform wood chip.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 commonly uses the schematic diagram one of product for the utility model;

Fig. 2 commonly uses the schematic diagram two of product for the utility model;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is a control flow chart of the present utility model;

Fig. 5 is an operation principle schematic diagram of the present utility model.

Consult Fig. 3, Fig. 4 and Fig. 5, the utility model discloses a kind of peeler knife rest feed automatic speed-regulating device, described peeler knife rest feed automatic speed-regulating device, comprise frame 8, the parts such as asynchronous machine 6 of knife rest 7 and the feeding of drive knife rest, described automatic speed governing device also comprises the data acquisition unit of interconnective detection asynchronous machine main shaft umber of pulse, receive the data of data acquisition unit and draw the control computer 3 of the required feed speed of knife rest by the relation curve of knife rest position and knife rest feed speed, receive the signal of controlling computer 3 and the frequency converter 5 of regulating the asynchronous machine rotating speed; Described data acquisition unit determines on the frame that by being located at a survey device 12 of measuring point is played in the knife rest position, the motor rotational pulse checkout gear 2 that cooperates with the asynchronous machine main shaft is formed, touched during the knife rest feeding and surveyed device 12, play survey device 12 and send signal to pulse detecting equipment 2, pulse detecting equipment 2 begins to detect.

What described motor rotational pulse checkout gear 2 adopted in an embodiment is the electromagnetic induction switch that cooperates with the asynchronous machine main shaft, also can adopt optoelectronic switch can reach the effect of image data equally.

Disclosed among the utility model embodiment is the feed automaton of no cassette peeler, its operation principle is: two synchronous main shafts 9 on the frame 8,9 ' with follow rest 7 on another last item 10, form equilateral triangle, push down round log the main shaft rotatory force is passed to round log, the drive round log rotates, blade on the follow rest 7 is cut into sheet with the round log of rotation, in order to form continuous wood chip, the knife rest 7 that moves must move immediately, along with being cut diameter, round log diminishes, the rotating speed of main shaft is constant again, the rotating speed of round log is more and more higher, follow rest 7 must be along with log diameter diminishes, translational speed increases, the technical solution of the utility model is knife rest and curve to be touched contacting of plate cooperate the control feed velocity to become computer calculating and control feed velocity automatically, it is in initial duty, knife rest 7 is in the position of least limit switch 13, as pressing starting button this moment, then knife rest 7 begins at the uniform velocity withdrawing, block on knife rest 7 is run into detection reference 12, then start data acquisition unit, electromagnetic switch is transferred to control computer 3 with the umber of pulse of main shaft, then control the position that computer 3 can draw knife rest 7 places this moment, knife rest continues withdrawing, to the position that can cut round log, the position of knife rest 7 when then computer can calculate the round log maximum gauge automatically, this moment, knife rest 7 stopped withdrawing, then feed and begin stock removal action, when cutting movement begins, electromagnetic induction switch 2 is transferred to coupled control computer 3 with the rotational pulse number of the asynchronous machine main shaft of every bit, this control computer 3 draws the position at knife rest 7 places this moment accurately according to the rotational pulse of main shaft, and the digitlization template in this control computer 3 just can calculate the required feed tachometer value of corresponding points, again this numerical value is transferred to and controls the frequency converter 5 that computer 3 links to each other, control the rotating speed of asynchronous machines 6 again by frequency converter 5, thereby the feed speed of control knife rest 7, thereby effectively eliminated owing to prior art intermediate slide and curve are touched the problem that precision that contacting of plate cooperate the control feed velocity to bring reduces, realize computer automatic real-time track log diameter, cut out uniform wood chip.

The utility model can be not limited to the embodiment among the embodiment, for example, also can adopt feed automatic speed-regulating device of the present utility model in the peeler of axis is arranged; Its motor rotational pulse checkout gear 2 also can adopt optoelectronic switch can reach the effect of image data equally; In addition, described knife rest position detecting device motion process also can be directly in the 11 places initial start of maximum limit bit switch, then at the uniform velocity feed of knife rest 7, run into the feed of 12 beginnings of detection reference speed change, directly enter working angles, this motion process, just increased the idle stroke of cutter, operating efficiency is not high, but can reach the purpose of fluid drive feed equally, and described detection reference 12 also can be as other devices such as optoelectronic switches.

Claims

1, a kind of peeler knife rest feed automatic speed-regulating device, comprise frame (8), knife rest (7) and drive asynchronous machine (6) parts of etc.ing of knife rest feeding, it is characterized in that: described automatic speed governing device also comprise interconnective detection asynchronous machine main shaft umber of pulse data acquisition unit, receive the data of data acquisition unit and control the signal of computer (3) and regulate the frequency converter (5) of asynchronous machine rotating speed by control computer (3), reception that the relation curve of knife rest position and knife rest feed speed draws the required feed speed of knife rest; Described data acquisition unit determines on the frame that by being located at a survey device (12) of measuring point is played in the knife rest position, the motor rotational pulse checkout gear (2) that cooperates with the asynchronous machine main shaft is formed, touched during the knife rest feeding and surveyed device (12), play survey device (12) and send signal to pulse detecting equipment (2), pulse detecting equipment (2) begins to detect.

2, a kind of peeler knife rest feed automatic speed-regulating device as claimed in claim 1 is characterized in that: the electromagnetic induction switch of described motor rotational pulse checkout gear (2) for cooperating with the asynchronous machine main shaft.

3, a kind of peeler knife rest feed automatic speed-regulating device as claimed in claim 1 or 2, it is characterized in that: the survey device (12) that rises that measuring point is played in described definite knife rest position is the one stroke switch, it is provided with in frame upper edge knife rest direction of feed with other two travel switch, wherein, the travel switch (11) of being located at the one end is the least limit switch for greatest limit switch, the travel switch (13) of being located at the other end.