CN211337702U - Adhesive tape running speed and slip detection device - Google Patents
Adhesive tape running speed and slip detection device Download PDFInfo
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- CN211337702U CN211337702U CN201922466413.XU CN201922466413U CN211337702U CN 211337702 U CN211337702 U CN 211337702U CN 201922466413 U CN201922466413 U CN 201922466413U CN 211337702 U CN211337702 U CN 211337702U
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Abstract
The utility model aims at providing an adhesive tape running speed and detection device that skids in order to solve the inaccurate and not general problem that current adhesive tape speed detection device exists. The device comprises stationary mast, straining spring, digging arm, transmission shaft, passive friction pulley and the detecting element that skids, stationary mast fixed connection is in the sealing-tape machine frame, and stationary mast middle part is articulated with the one end of digging arm, straining spring's one end is fixed in stationary mast lower part, the other end and is fixed in the digging arm middle part, passive friction pulley passes through transmission shaft fixed connection at the other end of digging arm to passive friction pulley and the internal surface friction contact of sticky tape, the detecting element that skids and digging arm lower extreme fixed connection to peg graft with the one end of transmission shaft. The device can detect the speed of the adhesive tape truly and reliably; the device is suitable for both a power frequency operation belt conveyor and a variable frequency operation belt conveyor; the alarm index can be flexibly adjusted.
Description
Technical Field
The utility model belongs to the technical field of industry sealing-tape machine sticky tape operation detects, specifically, relate to a sticky tape functioning speed and detection device that skids.
Background
Along with the continuous improvement of the industrial automation level, the application of the belt conveyor is more and more extensive, and the operation detection requirement of the belt conveyor is higher and higher, particularly in the field of metallurgy, material transportation is almost completed by adopting the belt conveyor, in order to ensure the operation reliability of the belt conveyor, almost every belt conveyor needs to be provided with a slip alarm detection device, and the variable-frequency speed-regulating belt conveyor needs to detect the actual operation speed of the belt conveyor. However, the current detection of the running speed of the belt conveyor or the slip alarm has a series of problems in terms of monitoring accuracy, application range, etc., for example, the rotation speed of the transmission motor of the belt conveyor is used as the running speed output of the belt conveyor, or the speed of the head roller or the tail roller of the belt conveyor is used as the running speed output of the belt conveyor, etc., and the measured speed cannot represent the running speed of the belt conveyor, because the friction transmission exists between the driving roller of the belt conveyor and the belt conveyor, there is a possibility of slip, that is: the linear speed of the circumferential operation of the driving roller of the adhesive tape machine is always greater than or equal to the adhesive tape operation speed of the adhesive tape machine; the rotating speed of the driven roller is measured to judge whether the belt conveyor slips or not, and the driven roller is inaccurate, because the driven roller rotates by means of friction of the belt conveyor against the driven roller, the possibility of slipping exists, the speed of the driven roller is built-in and unchangeable, the driven roller is not flexible enough for the belt conveyor running at power frequency, and the driven roller is not suitable for a frequency conversion belt conveyor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adhesive tape running speed and detection device that skids in order to solve the inaccurate and not general problem that current adhesive tape speed detection device exists. The device can detect the speed of the adhesive tape truly and reliably; the device is suitable for both a power frequency operation belt conveyor and a variable frequency operation belt conveyor; the alarm index can be flexibly adjusted.
The utility model provides a detection device for detecting running speed and slippage of an adhesive tape, which consists of a fixed upright post, a tensioning spring, a movable arm, a transmission shaft, a passive friction wheel and a slippage detection unit, wherein the fixed upright post is fixedly connected on a frame of the adhesive tape machine, the middle part of the fixed upright post is hinged with one end of the movable arm, one end of the tensioning spring is fixed at the lower part of the fixed upright post, and the other end of the tensioning spring is fixed at the middle part of the movable arm;
the slip detection unit comprises an incremental encoder, a fixed bottom plate and a processing unit; the fixed base plate is fixedly connected to the movable arm, the incremental encoder is fixedly connected with the fixed base plate, and a square shaft of the incremental encoder penetrates through the fixed base plate to be fixedly connected with one end of the transmission shaft, so that the transmission shaft and the encoder rotate synchronously; the processing unit comprises a frequency transmitter and a processor, and the frequency transmitter is connected with the processor and respectively connected with the upper computer through remote signals; the incremental encoder is connected with the frequency transmitter of the processing unit through a signal wire.
Furthermore, the slippage detection unit is also provided with a protective cover which is positioned outside the incremental encoder and fixedly connected to the fixed bottom plate; the protective cover is provided with a sealing wire inlet hole, so that the protection grade in the protective cover reaches IP65, and the sealing wire inlet hole is used for passing a signal wire;
furthermore, the detection device is also provided with an alarm which is respectively connected with the processor of the slippage detection unit and the upper computer.
Compared with the prior art, the utility model has the advantages that:
1. the device of the utility model directly tests the speed of the adhesive tape, thereby avoiding the influence caused by the slippage between the roller and the adhesive tape, and ensuring the speed of the adhesive tape measured by the utility model to be real and reliable;
2. the utility model has wide application range; the utility model discloses the setting value of judging skidding comes from the long-range setting of host computer, and this setting value gives the product of sealing-tape machine functioning speed and decision coefficient for the host computer, and when the sealing-tape machine was the power frequency operation, the host computer gave the sealing-tape machine functioning speed for the definite value; when the belt conveyor runs in a variable frequency mode, the upper computer endows the belt conveyor with an adjustable running speed value; the conventional slip detection equipment is only suitable for a power frequency operation belt conveyor and is not suitable for a variable frequency operation belt conveyor, but the device of the utility model is suitable for both;
3. the utility model has the flexibility of adjusting the coefficient; because the utility model discloses the setting value of judging skidding gives the sealing-tape machine functioning speed and judges the product of coefficient for the host computer, judges that the coefficient can adjust as required.
Drawings
FIG. 1 is a schematic view of the installation position of the device of the present invention;
FIG. 2 is a schematic view of the structure of the device of the present invention;
fig. 3 is a schematic diagram of the signal input and output of the processing unit in the device of the present invention.
The device comprises a fixed upright post 1, a fixed upright post 2, a tension spring 3, a movable arm 4, a transmission shaft 5, a driven friction wheel 6, a slip detection unit 7, a belt conveyor frame 8 and an upper computer;
61. incremental encoder, 62, fixed base plate, 63, processing unit, 64, protective cover, 65, signal line, 611, square shaft, 631, frequency transmitter, 632, processor, 641, sealed wire inlet hole.
Detailed Description
The processor adopted in the following embodiments is a single chip microcomputer of MC68HC912DG 128A.
Example 1
A kind of tape running speed and detection device that skids, as shown in fig. 1 to 3, it is made up of fixed pillar stand 1, tension spring 2, movable arm 3, drive shaft 4, passive friction wheel 5 and detection unit 6 that skids, the said fixed pillar stand 1 is fixedly connected to framework 7 of the tape machine, the middle part of the fixed pillar stand 1 is articularly connected with one end of the movable arm 3, one end of the said tension spring 2 is fixed to the inferior part of the fixed pillar stand 1, another end is fixed to the middle part of the movable arm 3, the said passive friction wheel 5 is fixedly connected to another end of the movable arm 3 through the drive shaft 4, and the passive friction wheel 5 is in frictional contact with tape, the said detection unit 6 that skids is fixedly connected with the lower end of the movable arm 3;
the slip detection unit 6 includes an incremental encoder 61, a fixed base plate 62, a processing unit 63, and a protective cover 64; the fixed base plate 62 is fixedly connected to the movable arm 3, the incremental encoder 61 is fixedly connected to the fixed base plate 62, the square shaft 611 of the incremental encoder 61 penetrates through the fixed base plate 62 and is fixedly connected with one end of the transmission shaft 4, so that the transmission shaft 4 and the encoder 61 rotate synchronously, the protective cover 64 is positioned outside the incremental encoder and is fixedly connected to the fixed base plate 62, the protective cover 64 is provided with a sealing wire inlet 641, the protection grade in the protective cover reaches IP65, and the sealing wire inlet 641 is used for passing through a signal wire 65; the processing unit 63 comprises a frequency transmitter 631 and a processor 632, the frequency transmitter 631 and the processor 62 are connected, and the frequency transmitter 631 and the processor 62 are respectively connected with the upper computer 8 remote signals; the incremental encoder 61 is connected to a frequency transmitter 631 of the processing unit via a signal line 65;
the detection device is also provided with an alarm which is respectively connected with the processor of the slippage detection unit and the upper computer.
Example 2
A method for detecting the running speed of an adhesive tape, which adopts the device for detecting the running speed and the slip of the adhesive tape of the embodiment 1, comprises the following steps:
1) starting the adhesive tape machine and the detection device, and receiving a current signal of the frequency transmitter and sending the current signal to an upper computer by the processor;
2) calculating by a processor or an upper computer to obtain the actual running speed of the adhesive tape;
the calculation principle is as follows:
under the tension action of the tension spring, the driven friction wheel is fully contacted with the adhesive tape, and because the elastic acting force is continuous, the phenomenon that the driven friction wheel loses rotation due to the vibration of the adhesive tape in the movement process of the adhesive tape can be avoided, so that the actual running speed S of the adhesive tape is ensuredGlueLinear speed S of contact point of passive friction wheel and adhesive tapeThreadEqual according to the radius R of the driven friction wheelMassage deviceAnd the rotational speed N of the driven friction wheelMassage deviceCan calculate SGlueNamely:
Sglue＝SThread＝0.002πRMassage deviceNMassage device； (1)
In the formula, SGlue: actual running speed (m/s) of the adhesive tape;
Rmassage device: radius (mm) of the passive friction wheel;
Nmassage device: the rotational speed (r) of the driven friction wheels)；
Because the transmission shaft and the encoder rotate synchronously, the rotating speed N of the driven friction wheel is equal to the rotating speed N (r/s) of the incremental encoder, namely:
Sglue＝0.002πRMassage devicen； (2)
2) The incremental encoder outputs a frequency signal, the frequency signal is sent to a frequency transmitter of the processing unit, the frequency transmitter converts the frequency signal into a corresponding current signal and outputs the current signal to the processor and the upper computer, and the frequency A-current I transmission proportion relation of the frequency transmitter is as follows:
A＝(Amax-0)(I-Imin)/(Imax-Imin) (3)
in the formula, A: incremental encoder output frequency (Hz);
Amax: the incremental encoder outputs the highest frequency (Hz);
i: the frequency transmitter transmits a current (mA);
Imin: when the output frequency of the incremental encoder is 0, the corresponding frequency transmitter transmits current (mA);
Imax: the output frequency of the incremental encoder is AmaxThe time corresponding frequency transmitter transmits current (mA);
because the radius of the passive friction wheel, the number T of pulse signals output by the incremental encoder in each rotation and the frequency A-current I transmission ratio of the frequency transmitter are known, the transmission ratio of the frequency A-current I is determined
SGlue＝0.002πRMassage device(Amax-0)(I-Imin)/(Imax-Imin)T (4)
Therefore, the actual running speed S of the adhesive tape can be obtained by the processor or the upper computer through calculation by using the formula (4)Glue。
Example 3
A method for detecting a slip of an adhesive tape using the apparatus for detecting a running speed and a slip of an adhesive tape according to embodiment 1, as shown in fig. 3, comprising the steps of:
1) the processor receives the current signal output by the frequency transmitter, then calculates the actual running speed of the adhesive tape, and receives the set speed values of slight and severe slip alarm given by the upper computer, the running speed value given by the upper computer to the adhesive tape machine and the running signal of the motor of the adhesive tape machine;
2) the processor compares and judges the running signal of the motor of the adhesive tape machine, the set speed value of the slight and serious slip alarm, and the running speed value of the adhesive tape machine given by the upper computer with the actual running speed of the adhesive tape, and finally outputs the results of failure alarm, slight slip alarm, serious slip alarm or no alarm to the alarm and the upper computer:
2.1) when the processor does not receive the running signal of the motor of the adhesive tape machine and receives the current signal output by the frequency transmitter, namely the actual running speed of the adhesive tape is greater than zero, the processor outputs a fault alarm to the alarm and the upper computer;
2.2) when the processor receives the running signal of the motor of the adhesive tape machine, the processor compares the slight and serious slip alarm set speed values and the running speed value given to the adhesive tape machine by the upper computer with the actual running speed of the adhesive tape respectively:
a. when the actual running speed of the adhesive tape is greater than the running speed value given to the adhesive tape machine by the upper computer, a fault alarm is given;
b. when the actual running speed of the adhesive tape is higher than the slight slip alarm set speed value, the processor only outputs a current signal output by the frequency transmitter to the upper computer;
c. when the actual running speed of the adhesive tape is less than the slight slip alarm set speed value and greater than the severe slip alarm set speed value, the processor gives a slight slip alarm to the alarm and the upper computer and outputs a current signal output by the frequency transmitter to the upper computer;
d. when the actual running speed of the adhesive tape is lower than the set severe slip alarm speed value, the processor gives a severe slip alarm to the alarm and the upper computer and outputs a current signal output by the frequency transmitter to the upper computer.
Actual application data:
the radius of the driven friction wheel 5-3 is 100mm, 512 pulse signals are output by the incremental encoder 5-4 every rotation, the output current signal corresponding to the input range of 0-1350 Hz of the frequency transmitter 5-9-1 is 4-20 mA, and the actual operation data is as follows:
TABLE 1 determination of actual operation and alarm of adhesive tape machine
Claims (3)
1. The device for detecting the running speed and the slip of the adhesive tape is characterized by comprising a fixed upright post, a tensioning spring, a movable arm, a transmission shaft, a driven friction wheel and a slip detection unit, wherein the fixed upright post is fixedly connected to a rack of the adhesive tape machine, the middle part of the fixed upright post is hinged with one end of the movable arm, one end of the tensioning spring is fixed at the lower part of the fixed upright post, the other end of the tensioning spring is fixed at the middle part of the movable arm, the driven friction wheel is fixedly connected to the other end of the movable arm through the transmission shaft and is in friction contact with the inner surface of the adhesive tape, and the slip detection unit is fixedly connected with the lower end of the movable;
the slip detection unit comprises an incremental encoder, a fixed bottom plate and a processing unit; the fixed base plate is fixedly connected to the movable arm, the incremental encoder is fixedly connected with the fixed base plate, and a square shaft of the incremental encoder penetrates through the fixed base plate and is fixedly connected with one end of the transmission shaft; the processing unit comprises a frequency transmitter and a processor, and the frequency transmitter is connected with the processor and respectively connected with the upper computer through remote signals; the incremental encoder is connected with the frequency transmitter of the processing unit through a signal wire.
2. The tape running speed and slippage detection device according to claim 1, wherein said slippage detection unit further comprises a protective cover, said protective cover being located outside said incremental encoder and fixedly attached to said stationary base plate; the protective cover is provided with a sealing wire inlet hole used for passing a signal wire.
3. The device for detecting the running speed and the slippage of the adhesive tape according to claim 1, wherein an alarm is further provided, and the alarm is respectively connected with the processor of the slippage detection unit and the upper computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922466413.XU CN211337702U (en) | 2019-12-31 | 2019-12-31 | Adhesive tape running speed and slip detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922466413.XU CN211337702U (en) | 2019-12-31 | 2019-12-31 | Adhesive tape running speed and slip detection device |
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| CN211337702U true CN211337702U (en) | 2020-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921243A (en) * | 2019-12-31 | 2020-03-27 | 中冶北方（大连）工程技术有限公司 | Device and method for detecting running speed and slippage of adhesive tape |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921243A (en) * | 2019-12-31 | 2020-03-27 | 中冶北方（大连）工程技术有限公司 | Device and method for detecting running speed and slippage of adhesive tape |
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