JP2729697B2 - Tack meter with thermostat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a tack meter with a thermostat that measures the temperature dependence of an object having adhesive strength.

[Prior art] Conventionally, when measuring the temperature dependency of an object to be measured having an adhesive force such as unvulcanized rubber, the operator himself enters a measurement room controlled to a predetermined temperature and is installed in the measurement room. The temperature dependency of an object to be measured has been measured by operating an existing adhesive force measuring device (tack meter).

However, when an operator enters the measurement room and performs measurement, there is a problem that the temperature in the measurement room is disturbed by an operator's body temperature or the like, which adversely affects the measurement result.

On the other hand, at the time of the above measurement, the measurement room is controlled in a wide temperature range of 0 to 40 ° C.
At a low temperature around 0 ° C., particularly at a high temperature around 40 ° C., there is a problem that the working environment becomes severe for the operator and it becomes difficult to engage in the work.

[Problems to be solved by the invention]

An object of the present invention is to provide a tack meter with a thermostat that enables accurate measurement of the temperature dependency of an object to be measured having adhesive force in a favorable environment for an operator.

[Means for solving the problem]

That is, the tack meter with a thermostat of the present invention has a sample mounting portion including an upper sample support and a lower sample support, and a lower sample in which the upper sample mounted on the upper sample support is fixed by the lower sample support. An adhesive force measuring unit that measures the peeling force between the two samples by lifting the upper sample after being pressed against the sample, and a thermostatic bath that can control the temperature in the bath over a wide temperature range from low to high. Wherein the sample mounting section of the adhesive force measuring section is incorporated in a thermostat, and an operation port for operating the sample mounting section is provided in the thermostat.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, 35 is a tack meter with a thermostat, and a tack meter with a thermostat 35 is a box-shaped thermostat 36,
A pair of left and right legs 37, 38 fixed to the lower surface of the thermostat 36,
An adhesive force measuring unit 1 is attached to the thermostat 36, and a caster 39 for movement is attached to the lower part of the legs 37 and 38.

The adhesive force measuring unit 1 has a built-in known measuring device main body, and its operation surface 3 has a power switch 4 with an indicator light that is lit only while the power is turned on, and upper sample raising / lowering operation buttons 5 and 6. A setting knob 7 for setting a crimping time, an adhesive force indicator 8, and an adhesive force indicator reset button 9 are provided.

As shown in FIG. 2, an upper sample support 10 is detachably attached to a lower portion of a movable shaft (not shown) connected to the adhesive force indicator 8. A lower sample support 20 is provided below the upper sample support 10, and a sample mounting portion 40 is formed by the upper and lower sample supports 10 and 20.

A ribbon-shaped upper sample S is mounted around a metal disk 12 which is a main part of the upper sample support 10. If necessary, a weight (not shown) is placed on the upper sample support 10.
Is attached.

On the other hand, the lower sample support 20 supports the lower sample S 'on the support plate 33.
Lower sample holding part 15 to be fixed on top, and lower sample holding part
A cam 16 for raising and lowering 15 and a lever 17 for rotating the cam 16
It is composed of As shown in FIG. 3, the lower sample holding section 15 includes a holding frame 18 for holding the lower sample S ′,
The support section 19 has a U-shaped cross section. The lower sample holding unit 15 is attached to a lower frame 22 of the adhesive force measuring unit via a support shaft 21 attached to a lower rear end of the support unit 19 so as to be able to move up and down. The aforementioned holding frame 18 is provided with a through hole 31 for introducing an upper sample support.

A cam 16 having a pentagonal cross section is provided in a space 26 surrounded by a lower plate 23 forming a support 19 of the lower sample holding unit, an upper plate 24, and an upright plate 25. Lower specimen holder with very small force based on leverage principle using 16
15 can be undulated. As shown in FIG. 2, the cam 16 is provided with a shaft fixing frame 28 fixed on the lower frame 22.
Is rotatably mounted via a cam shaft 27. The cam 16 is composed of a triangular head 29 and a quadrangular pressing part 30, and the pressing part 30 presses the lower sample pressing part 15 so that the head 29 causes the lower sample pressing part 15 to rotate counterclockwise. It has become. Further, as shown in FIG. 2, the lever 17 is fixed to one end of the cam shaft 27. The lever 17 is mounted in the same direction as the cam head 29, as shown in FIG.

As shown in FIG. 2, the sample mounting section 40 of the adhesive force measuring section 1 is incorporated in the thermostat 36 so that the sample mounting section 40 is not affected by the external temperature. Adhesive strength measurement unit 1
Is provided on a support plate 33 installed on the bottom 41 of the thermostat 36. The adhesive force measuring section 1 is kept horizontal by an adjusting screw 32 attached to the lower frame 22. An adjusting screw 34 is also provided on the support plate 33 so that the support plate 33 can be adjusted horizontally.

An electric heater (not shown) for heating is provided in the thermostat 36.
And a pipe (not shown) for supplying a cooling gas are arranged, and by controlling the voltage and the supply amount of the cooling gas, the inside of the thermostat 36 can be controlled in a temperature range of 0 to 40 ° C. I have. Further, a preheating chamber 42 is provided in the thermostat 36, as shown in FIG. The sample shelf 43 installed in the preheating chamber 42 accommodates the upper sample support 10 on which the upper sample S is mounted and the lower sample S 'in the form of a sheet, and preheats or precools these samples. .

A front panel 44 is detachably attached to the front surface of the constant temperature bath 36. By removing the front panel 44, the front surface of the constant temperature bath 36 is opened as shown in FIG. I have. Also, as shown in FIG. 1, the front panel 44 is provided with a transparent observation window 45 in the tank, and operation ports 46 for operating the sample mounting portion on both sides of the observation window 45. .

Further, as shown in FIG. 2, a lid 47 for opening and closing the sample inlet is provided above the preliminary chamber 42. Further, a transparent in-tank observation window 48 is provided on the upper surface of the thermostatic bath 36 in front of the adhesive force measuring unit 1.

Further, as shown in FIG. 1, the left leg 37 is provided with an in-bath temperature indicator 49, a in-bath temperature setting device 50, and a timer 51.

When measuring the temperature dependence of the two samples S and S ′ having adhesive strength, the above-mentioned thermometer-attached
It is installed in a measurement room (not shown) controlled before and after.

Thereafter, a predetermined temperature is set by the in-bath temperature setting device 50, and when the inside of the constant temperature bath 35 reaches the predetermined temperature, and when the upper and lower samples S, S 'reach the predetermined temperature, the operation port 46 of the front panel 44. The operator puts his hand in the constant temperature bath 36 and attaches the upper sample support 10 to the movable shaft of the measurement device unit 40,
The lower sample support 20 fixes a sheet-shaped lower sample S ′ on the support plate 33. Next, after setting the crimping time with the crimping time setting knob 7, when the upper sample lowering button 5 is pressed, the upper sample support 10 descends, and the upper sample S is crimped on the lower sample S 'with a constant load, and the fixed time. After the lapse of time, the upper sample support 10 is raised, and the peeling force between the two samples at that time is displayed on the adhesive force indicator 8.

Similarly, by repeatedly performing the same operation as above while changing the temperature in the thermostat 36 to a predetermined temperature,
The temperature dependence of the adhesive strength of S, S 'can be measured.

〔The invention's effect〕

As described above, the present invention incorporates the sample mounting section of the adhesive strength measuring section in a thermostat so that the sample mounting section is not affected by the outside air temperature or the like. Dependency can be measured with high accuracy. In addition, if the operator is in a measurement room controlled at around 20 ° C and operates the sample mounting part by inserting only his hand into the thermostatic chamber through the operation port for operating the sample mounting part provided on the front of the tack meter, Because of the goodness, the operator himself can perform the measurement under a favorable working environment.

[Brief description of the drawings]

FIG. 1 is a front view of a tack meter with a thermostat according to the present invention, FIG. 2 is a partial front view of the tack meter with a thermostat with a front panel removed, and FIG. 3 is a cross section taken along the line III-III of FIG. FIG. 1 ... Adhesion measuring unit, 10 ... Upper sample support, 20 ... Lower sample support, 36 ... Heat bath, 40 ... Sample mounting unit, 46 ...
... Operation port, S... Upper sample, S ′... Lower sample.

Claims (1)

(57) [Claims] A first sample support portion comprising an upper sample support and a lower sample support, wherein the upper sample mounted on the upper sample support is pressed against the lower sample fixed by the lower sample support; An adhesive force measuring unit configured to measure the peeling force between the two samples by pulling up the upper sample, and a thermostatic chamber capable of controlling the temperature in the tank in a wide temperature range from low to high temperature, wherein the adhesive force measurement is performed. A tack meter with a thermostat, wherein the sample mounting part of the part is incorporated in a thermostat, and an operation port for operating the sample mounting part is provided in the thermostat.