JP2834625B2 - Raw material bite test equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raw material biting test apparatus, and more particularly, to test the mechanical suitability of various raw materials at a portion where various pumps and valves are fitted in a production line such as a food production line. The present invention relates to a raw material biting test device useful for estimation.

[0002]

2. Description of the Related Art Conventionally, in a production line such as a food production, it is a general method that a prototype produced at a laboratory level is put on an actual machine line such as a factory in advance. However, when the same raw material mixture is put on the actual machine line,
Due to various factors associated with the scale-up, the raw material's mechanical suitability deteriorates, and the raw material bites into the drive unit where various parts such as pumps and valves are fitted in the production line such as food production, and the frictional force of the part to be ground Is abnormally large, the driving unit stops, and as a result, the whole machine line stops, and the lack of compatibility of the raw material with the machine is one of the major causes of various troubles in the production line. Had become.

[0003] In such a situation, it is necessary to further change the composition of the raw materials in order to adjust the machine suitability of the raw materials to the actual machine line. Because I was using
This was problematic because of the large amount of sample, time and effort required. Therefore, there has been a strong demand for the appearance of a test apparatus capable of solving the problem by testing and estimating the mechanical suitability of the raw material in the actual machine line in advance.

[0004]

In view of such a situation, the present inventors have conducted various studies with the aim of developing a test apparatus capable of estimating the mechanical suitability of raw materials in the actual machine line as objective data. As a result of superimposing, by converting the machine suitability of the raw material into data as a torque value,
The inventor has found that the mechanical suitability can be easily and objectively estimated, and has succeeded in developing a new type of device for measuring the torque value, thereby completing the present invention.

That is, the present invention provides a raw material which can be simply and objectively estimated as to the mechanical suitability of a raw material or a sample of the raw material in a driving portion having a sliding portion of various pumps, valves and the like in a production line such as food production. It is an object of the present invention to provide a bite test device.

[0006]

SUMMARY OF THE INVENTION The present invention has a structure similar to a structure of a fitting portion of driving parts such as various pumps and valves in a production line such as a food production and the like. It is configured so that the temperature, pressure, or the shape, material, and clearance conditions such as clearance for applying to the sample can be arbitrarily controlled in a form that matches the actual machine line,
If there is a test device configured to be able to measure a change in frictional force or the like caused by a change in physical properties of the raw material or its sample due to thermal denaturation or the like as a torque value, the raw material related to the raw material bite in the drive unit This is based on the finding that the mechanical suitability can be tested and estimated.

[0007] That is, the raw material bite test apparatus of the present invention embodied on the basis of such knowledge provides the following (1) to (5).
Technical means. (1) A cylindrical body made of a material having wear resistance,
A housing portion provided with a sample insertion port penetrating the side wall on the side wall thereof, and a pressure sealing means for the sample insertion port, and a cylindrical body made of a wear-resistant material, The valve has an outer diameter large enough to form a constant clearance between the valve portion and the valve portion, which forms the clearance and is rotatably supported by the housing portion, and is supplied through the sample input port. A raw material or a sample thereof, a raw material holding mechanism for holding the raw material or the sample in the clearance, a test section, and a constant temperature device for controlling the temperature to be constant by circulating a heating medium through the test section; A measuring unit that is directly connected to the test unit via a rotating shaft and measures a torque value of the rotating shaft, and a power unit including a transmission unit and a motor directly connected to the measuring unit and the rotating shaft. Naruko Raw chewing test apparatus characterized.

(2) The material having abrasion resistance is ceramic or stainless steel.
The raw material biting test device according to the above.

(3) The valve according to the above (1), wherein the valve portion is a cylindrical body made of a material having abrasion resistance, and has a sample receiving hole on the side wall thereof, the sample receiving hole coinciding with the sample inlet. The raw material biting test device according to 1).

(4) The raw material holding mechanism has an outer diameter substantially the same as the inner diameter of the housing portion, and comprises an O-ring formed on the circumference of the side wall of the valve portion. The raw material biting test device according to (1).

(5) The raw material biting test apparatus according to (1), wherein the raw material holding mechanism comprises a holding member having a ring-shaped packing for closing the clearance at front and rear ends of the valve portion. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A test apparatus according to the present invention will be specifically described below with reference to the drawings showing an embodiment thereof.
First, the configuration of the test apparatus of the present invention will be described. FIG. 1 shows an outline of the whole raw material biting test apparatus of the present invention. The raw material bite test apparatus of the present invention is a test section for feeding and testing a raw material or a sample thereof, a constant temperature apparatus for circulating an appropriate heat medium and controlling the temperature of the test section to be constant, the test section and a rotating shaft. And a power unit having a motor and a speed change means directly connected to the measuring unit via the rotating shaft.

[0013] Of these configurations, a power unit having a transmission means and a motor is used as the power unit. The output of the motor of the power unit varies depending on the scale of the test unit. Therefore, it is better to use one that is as large as possible. Examples of the speed change means include a pulley (transmission), a speed reducer, an inverter, and the like, and it is preferable that the speed can be controlled within an arbitrary range of 0 to 5000 rpm.

The measuring section may be constituted only by a torque meter for measuring a change in frictional force caused by a change in physical properties such as thermal denaturation of the raw material or its sample as a torque value. It is preferable to provide not only a torque meter but also a recorder which records the measured torque value on a recording sheet as digital or analog.

As the thermostat, for example, an appropriate heat medium such as oil or water is circulated around or inside the test section through a thermostat so as to keep the temperature of the test section constant. If so, an appropriate one is used, but a more preferable one is a type that can be controlled within an arbitrary range of −20 to + 200 ° C.

Next, the test section will be described. The test section includes a housing section A and a valve section B as shown in FIG. The housing portion A is formed of a cylindrical body made of a wear-resistant material such as ceramic or stainless steel, and is provided with a sample inlet 2 penetrating the side wall at a substantially central portion of the side wall. Appropriate pressure sealing means 1 such as a screw, a syringe, a hydraulic cylinder, an air pressure cylinder, etc., capable of sealing the sample inlet 2 in a state where the sample is pressed and pressed.
Is provided. As the pressure sealing means 1,
Those that can be controlled within an arbitrary range of 5 atm are preferable.

On the other hand, the valve portion B, like the housing portion A, is made of a cylindrical body made of a wear-resistant material such as ceramics or stainless steel. A sample receiving hole 3 which is substantially the same size as the sample input port 2 of the housing part A and is in conformity with the sample input port 2 is formed in the housing part A. Two O-rings 5 having substantially the same outer diameter are provided on the circumference of the side wall. The sample receiving hole 3 may be appropriately formed as needed, and its shape, structure, and the like are not particularly limited.

Further, the test section is a housing section A
The above-mentioned valve portion B is accommodated in the
Has a combination structure as shown in FIG. As shown in FIG. 2, the sample inlet 2 of the housing part A and the sample receiving hole 3 of the valve part B are located on the same circumference around the rotation shaft 4. Further, between the housing part A and the valve part B, there is a clearance C composed of an appropriate space according to the test purpose.

Further, instead of using the O-ring as the raw material holding mechanism, a ring-shaped packing for closing the clearance C at one or both of the front and rear ends of the valve portion B as shown in FIG. 6, a retainer 8 provided with a stopper 7, such as a screw, a stopper mounting hole 7 ', and a shaft support 9 can also be used. The shape, structure, and the like of the holding member provided with the ring-shaped packing are not particularly limited, and the raw material or the sample put through the sample feeding port is securely held in the clearance C, Any material can be used as long as it can surely prevent the sample from leaking out of the clearance C.

As described above, the test section shown in FIG. 2 has the housing section A with the sample receiving hole 3 interposed therebetween.
A raw material holding mechanism having an outer diameter substantially the same as the inner diameter of the valve member and including two O-rings 5 formed on the circumference of the side wall of the valve portion. The holding member is not limited to the O-ring, but includes a ring-shaped packing 6 shown in FIG. 4 and is formed so as to be attachable to the front and rear ends of the housing portion A with a stopper 7 such as a screw. 8 can also be used. FIG. 4 shows an example in which the O-ring and the presser fitting 8 are used in combination. However, the raw material holding mechanism may be constituted by only the presser fitting.

The raw material biting test apparatus of the present invention having such a configuration has the above-described configuration as a basic configuration, and it is possible to appropriately combine an appropriate additional configuration with the configuration. The shape, material, clearance, and the like of the rubbed portion can be appropriately changed according to the raw material to be tested or its sample.

Also, the shape and material of the O-ring and the shape and material of the ring-shaped packing are not particularly limited. For example, in the case of the O-ring, the O-ring of the valve portion made of a cylindrical body is used. The outer periphery is adapted to the circumferential surface of the inner diameter of the housing portion made of a cylindrical body, and the raw material or the sample introduced from the sample introduction port is surely prevented from leaking outside the O-ring, And any suitable form, as long as it can smoothly support the rotation of the valve portion,
An appropriate material can be used.

The O-ring is also provided on the circumference of the side wall or on the circumference so as to sandwich the sample receiving hole formed in the valve and sandwich the sample receiving hole on both sides of the valve. If it is provided on the circumference via a groove of an appropriate shape, its position, installation form, etc. are not particularly limited, can be appropriately changed, and the number thereof, When the raw material holding mechanism is composed of only O-rings, it is sufficient that there be at least two, and there is no particular limitation.

Further, the torque meter used in the measuring unit of the present invention is interposed between the rotating shaft from the power unit and the rotating shaft from the test unit, and measures the distortion of the rotating shaft, that is, the torque value.
There is no particular limitation as long as it can be measured over time. For example, a general type of torque meter that uses a change in current to detect an increase in length due to twisting of the rotating shaft is preferably used.

The raw material biting test apparatus of the present invention tests and estimates the mechanical suitability of raw materials or samples thereof at the fitting portion of various pumps, valves, and the like in a production line for food production and the like. Typical examples are a rotary pump, a three-way valve, and the like, which are interposed between the steps of cooling and filling a paste-like food material or product, which is usually made into a uniform state by heating and mixing the material. However, the present invention is not limited to the rotary pump, the three-way valve and the like, and can be applied irrespective of its type as long as it has the above-mentioned contact portion.

The test apparatus of the present invention is not limited to raw materials or samples thereof in a production line for food production or the like, as long as they have the same rubbing structure, and similar tests for machine suitability are required. It goes without saying that the same applies to all similar raw materials in other fields or their samples, products and the like.

Next, the operation of the present invention will be described. First, an appropriate amount of a raw material or a sample thereof in a state where the temperature of the test section is kept constant by an appropriate heat medium from a thermostatic chamber or the like in a thermostatic apparatus, for example, a part of the raw material, such as milk powder containing a saccharide, is used as a raw material. The raw material is mixed into the sample receiving hole 3 from the sample input port 2 into a sample receiving hole 3 such that the state from mixing to filling has a low water content, a high saccharide content, and a fluid paste state. Press with pressure and seal.

Next, the motor is started, the speed of the rotating shaft 4 is adjusted to an appropriate speed by the speed change means, and the valve section B is rotated via the measuring section. In the case of the test section shown in FIG.
It rotates within the clearance C between the rings 5, and
In the case of the test section shown in FIG. 4, the test section rotates within the clearance C sandwiched between the ring-shaped packing 6 and the O-ring 5. With the rotation, due to the set temperature and frictional heat, the raw material or its sample gradually changes its physical properties such as heat denaturation, the frictional force changes and increases, finally showing the maximum frictional force Become like Measure the time until the maximum frictional force is reached and the torque value when the maximum frictional force is reached.
That is, the value of the change in torque over time is used as basic data for estimating the mechanical suitability of the raw material or its sample.

In the present invention, in an actual machine line or the like,
In order to estimate the machine suitability of the raw material or its sample in the drive unit where the pump, valve, etc. are fitted, for example, based on the data of the trouble actually occurring in the above line, the troubled raw material or its trouble The sample is analyzed by the test apparatus of the present invention, and the value of the change over time in torque is obtained.Based on this, when the sample is placed on the line, the torque value becomes smaller than the torque value. Alternatively, the raw material blending and processing conditions may be set such that the time to reach the torque value becomes longer, and the present invention predicts the trouble in advance by knowing the value of the temporal torque change, and This is to surely avoid this.

According to the test apparatus of the present invention, the pump,
Torque value measured as estimated data on the mechanical suitability of the raw material or its sample in the fitting part such as a valve,
That is, the value of the change in torque over time is correlated with the actual machine suitability and suitability of the raw material or sample of any kind in the actual machine line, and is extremely useful in knowing the mechanical suitability of the raw material or the sample by a material bite test. It turned out to be data.

[0031]

According to the present invention, by appropriately controlling the shape, material, clearance, pressure, temperature and rotation speed applied to the raw material or its sample, the mechanical suitability of the raw material or its sample can be shortened in a short time. To
It can be expressed as a torque value and an arrival time. Therefore, by estimating the mechanical characteristics of a certain machine from the past test data of the machine by the torque value and the arrival time, it is possible to select in advance the raw material blending and processing conditions suitable for the machine. Conversely, it is also possible to appropriately set the machine specifications according to the machine suitability of certain raw material blending and processing conditions.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of a raw material biting test apparatus of the present invention.

FIG. 2 is an explanatory diagram showing a structure of a test unit of the present invention.

FIG. 3 is an explanatory view showing a combination structure of a test unit according to the present invention.

FIG. 4 is an explanatory view showing another embodiment of the test section of the present invention.

[Explanation of symbols]

 Reference Signs List A Housing part B Valve part C Clearance 1 Pressure sealing means (screw etc.) 2 Sample inlet 3 Sample receiving hole 4 Rotating shaft 5 O-ring 6 Ring packing 7 Clasp (screw etc.) 7 'Clasp mounting hole 8 Presser Hardware 9 Shaft bearing

Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) G01N 11/00 G01N 11/14 G01N 33/02 A23L 1/00-1/035 A23L 1/325

Claims (5)

(57) [Claims] 1. A cylindrical body made of a material having abrasion resistance, the housing having a side wall provided with a sample insertion port penetrating the side wall and a pressure sealing means for the sample insertion port. A cylindrical body made of an abradable material, having an outer diameter large enough to form a certain clearance with the inner diameter of the housing part, forming the clearance and rotating the housing part; A test section including a freely supported valve section, a raw material input through the sample input port or a sample thereof, and a raw material holding mechanism for holding the raw material or the sample in the clearance; A constant temperature device that controls the temperature to be constant by circulating the heat medium, a measuring unit that is directly connected to the test unit via a rotating shaft, and measures a torque value of the rotating shaft, and the measuring unit Directly connected via rotary axis And a power unit comprising a speed change means and a motor. 2. The apparatus according to claim 1, wherein the wear-resistant material is ceramic or stainless steel. 3. The valve section according to claim 1, wherein the valve section is a cylindrical body made of a material having abrasion resistance, and a side wall thereof has a sample receiving hole corresponding to the sample inlet. The raw material biting test device according to the above. 4. The raw material holding mechanism has an outer diameter substantially equal to the inner diameter of the housing part, and comprises an O-ring formed on a circumference of a side wall of the valve part. Item 1. A raw material biting test device according to Item 1. 5. The raw material biting test device according to claim 1, wherein the raw material holding mechanism comprises a presser fitting having a ring-shaped packing closing and closing the clearance at front and rear ends of the valve portion.