CN201340251Y - Leather thickness measuring instrument with measurement start timing function - Google Patents

Abstract

A leather thickness measuring device with a measurement start timing function comprises a casing and a sliding shaft penetrating through the casing. The sliding shaft in the casing is further equipped with a moving grid plate, the upper end of the sliding shaft is equipped with a balance weight, the lower end of the sliding shaft is equipped with an upper presser foot, a handle is hinged on the outer surface of the casing through a handle supporting point, the left end of the handle is clamped on the upper portion of the sliding shaft through a U-shaped opening, a button switch is further mounted at the left end of the handle located at the lower end of the balance weight, and the button switch is in series connection to a power loop through two signal wires. The utility model utilizes the button switch to transform the action that the upper pressing foot begins falling into an electric signal which is supplied to a single chip microcomputer as a timing signal for starting measurement. The leather thickness measuring device is simple in structure and convenient in operation, reduces cost, increases reliability, and enables collection of timing signals for starting measurement to be more scientific and more accurate.

Description

Band is measured the leather thickness measuring instrument of the function that picks up counting

Technical field

The utility model relates to a kind of leather thickness measuring instrument, and is particularly a kind of with the leather thickness measuring instrument of measuring the function that picks up counting.

Background technology:

Raising along with science and technology development and people's living standard, impel leather industry by workshop-based progressively to the suitability for industrialized production transition time, have higher requirement to there being related parameter to measure fast and accurately in the Process for producing leather, so that instruct Process for producing leather to implement timely and effectively, guarantee product quality.And at present for this basic parameter measurement instrument of leather thickness, although be improved to digital basically by original pointer-type, measuring accuracy increases, but for leather one class flexible material, in the thickness measure condition except requiring under " constant pressure " condition, to measure, also have time requirement, promptly contacting the reading in leather sample (promptly pressing corner connection to contact the moment that lies in the leather sample that presses down on the angle) the five seconds end moment that pick up counting from last pressure corner connection just is that the leather sample thickness is (because at 500 gram/cm ²" constant pressure " down its thickness changing towards reducing direction always), and the timework of this five-second period remains at present and is finished by the manually-operated stopwatch.This not only makes the complex structure of instrument own, troublesome poeration, and the more important thing is artificial factor in operation, make that measured data deficiency is scientific and be total to reliability, this not only has a strong impact on the scientific research in this field, and for the affirmation about the leather thickness parameter produces error even causes dispute for semi-manufacture between the upstream and downstream enterprise of industry inside.And the main cause that causes this problem is to be not easy to gather accurately and reliably to begin to measure signal constantly and offer single-chip microcomputer, and remaining timing and data presentation locking all are easy to realize for single-chip microcomputer.So seek a kind of fully can science, automatically, by in the realization measurement standard that everybody accepted and generally acknowledged, got rid of the human factor influence about the new method of the regulation of timing time, have great importance and practical value.

Summary of the invention

It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and the pick up counting leather thickness measuring instrument of function of the band measurement of the signal that can accurately obtain picking up counting in measurement.

For achieving the above object, the technical solution adopted in the utility model is: the sliding axle that comprises housing and run through housing, be provided with the counterweight counterweight in sliding axle upper end, the lower end is provided with presser feet, handle is hinged on the outside surface of housing by the handle fulcrum, the handle left end is stuck in sliding axle top by the U-shaped mouth, and the lower end that is positioned at the counterweight counterweight at the handle left end also is equipped with pushbutton switch, and pushbutton switch is connected in the electric power loop with series system by two signal wires; On the sliding axle in the housing moving grid sheet is installed also.

The utility model utilizes pushbutton switch that this action that begins to fall of last pressure angle is converted to electric signal and offers the timing signal that single-chip microcomputer is measured to start with, and it is simple in structure, and cost reduces, easy to operate, reliability improves, and makes the collection science more of measuring the signal that picks up counting, and is more accurate.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are described in further detail.

Referring to Fig. 1, the sliding axle 2 that the utility model comprises housing 3 and runs through housing 3, moving grid sheet 7 in the displacement sensor of variable capacitor is installed on the sliding axle 2 in the housing 3, be provided with counterweight counterweight 1 in sliding axle 2 upper ends, the lower end is provided with presser feet 6, handle 9 is hinged on the outside surface of housing 3 by handle fulcrum 8, handle 9 left ends are stuck in sliding axle 2 tops by the U-shaped mouth, and the lower end that is positioned at counterweight counterweight 1 at handle 9 left ends also is equipped with pushbutton switch 11, the button of pushbutton switch 11 (promptly depress the handle right-hand member) under normal conditions except external force and counterweight counterweight 1 lower plane owing to noncontact is in free state; Pushbutton switch 11 is connected in the electric power loop with series system by two signal wires 10, so that the conducting that behind the button down of pushbutton switch 11 and release of pressure, causes circuit by the spring At time of eject with disconnect two kinds of states, thereby the height or the low level of output are exactly the signal that timing begins, and offer single-chip microcomputer and get final product.

Referring to Fig. 1, the method for the signal that obtains to pick up counting is as follows: generally pushbutton switch 11 is in free state, and its button is upspring under action of reset spring and made circuit be in off-state.When needs are measured leather sample, at first open system power supply, press down handle 9 right-hand members with thumb then, leverage by handle fulcrum 8 makes the button that pushbutton switch 11 moves upward and it exceeds pushbutton switch 11 that is fixed on handle 9 left ends at first touch counterweight counterweight 1 lower plane and is subdued by its weight, button overcame back-moving spring power and made that closing of circuit, output signal are low level this moment; After this under external force along with the continuation of pushbutton switch 11 raises, asking counterweight counterweight 1 to reach with its fixing sliding axle 2 moves upward, after certain distance is left at upper and lower pressure angle 6,5, leather sample 4 lain in press down above the angle 5, when cancelling the external force that is applied on the handle 9 then, counterweight counterweight 1 and sliding axle 2 move downward and touch rapidly the upper surface of leather sample 4 in the freely falling body mode under action of gravity, apply " constant pressure " in this leather sample by last pressure angle 6, thereby guarantee under the required standard condition, to measure; At this moment the button of pushbutton switch 11 will bounce under the elastic force of back-moving spring, make the circuit that always was in closure state just now disconnect suddenly, at this moment output signal is a high level, and offer signal that picks up counting of single-chip microcomputer, in order to distinguish mutually with the high level of not measuring time output, the present invention be low level is become high level rising edge as the timing commencing signal, this situation is unique in whole measuring process once.

Along with the carrying out of measuring, measurement data is reducing gradually, in case arrived 5 seconds end moment of regulation, single-chip microcomputer sends the video data that instruction automatically locks this moment, and these data are exactly the leather sample thickness of surveying, and read and write down these data, and this measures end.

The present invention by pushbutton switch 11 the movement conversion of last pressure angle 6 beginning free-fallings by electric signal and this is moment measured timer time to start with to be brought time error be negligible with in fact going up pressure angular contact leather sample upper surface, because on press down between the angle ultimate range and only be 15mm, deduct the leather sample thickness again, so be no more than 0.05 second from the time that begins to drop to contact leather sample upper surface, only be one of percentage of whole time.

Claims (1)

1, the leather thickness measuring instrument that band picks up counting, it is characterized in that: the sliding axle (2) that comprises housing (3) and run through housing (3), on the sliding axle (2) in the housing (3) moving grid sheet (7) is installed also, be provided with counterweight counterweight (1) in sliding axle (2) upper end, the lower end is provided with presser feet (6), handle (9) is hinged on the outside surface of housing (3) by handle fulcrum (8), handle (9) left end is stuck in sliding axle (2) top by the U-shaped mouth, and the lower end that is positioned at counterweight counterweight (1) at handle (9) left end also is equipped with pushbutton switch (11), and pushbutton switch (11) is connected in the electric power loop with series system by two signal wires (10).

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