CN201583464U

CN201583464U - Texture testing instrument for solid food machinery

Info

Publication number: CN201583464U
Application number: CN2009202867631U
Authority: CN
Inventors: 刘骞; 许晓曦
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2009-12-30
Filing date: 2009-12-30
Publication date: 2010-09-15
Anticipated expiration: 2019-12-30

Abstract

The utility model discloses a texture testing instrument for solid food machinery, which includes a special fixture, a transmission mechanism, a sensor, a PLC (programmable logic controller) and an input/output device mechanism connected with the PLC. The special fixture serves as an oral cavity of a simulation body, which consists of an upper half part and a lower half part, corresponding molar teeth are formed at the half upper part and at the half lower part, a sensor is arranged at the lower half part of the fixture, and the upper half part of the fixture is connected with the transmission mechanism; the transmission mechanism is a stepping motor controlled by the PLC, and the PLC can control and computer the displacement amount of the upper half part of the fixture; and the sensor can detect the pressure values obtained by the lower half part of the fixture and convey to the PLC for process. The texture testing instrument can detect the amount of force suffered by solid foods which is the chewing process, the amount of pressure that the molar teeth exert on solid foods in a simulated cavity until the foods break, as well as the deformation amount of solid foods, and digitalize relevant data for displaying and printing.

Description

Solid body food mechanical texture characteristic tester

Technical field

The utility model relates to the food inspection technical field, particularly a kind of solid body food mechanical texture characteristic tester.

Background technology

The sense organ discrimination method is the method for main employing during food quality detects, and its essence is exactly to rely on vision, sense of smell, the sense of taste, sense of touch and the sense of hearing to wait face shaping, color and luster, smell, flavour and rigid, the cohesiveness of identifying food.No matter which kind of food is carried out sensory quality assessment,, and often be before physics and chemistry and Micro biological Tests method, to carry out always said method is indispensable.

As mentioned above, the mechanical texture characteristic of present solid food, as: rigid, cohesiveness all is to be judged by the organoleptic analysis by the expert, does not have quantitative detection means to judge the quality of comparative product quality.But this but have following defective by the sensorial subjective determination methods that detects of the mankind:

1, owing to need carry out manual detection by the expert, therefore, detection efficiency is low.

2, lack the science judgment foundation, particularly can not carry out the detection and the judgement of datumization to rigid and feature cohesiveness, therefore, repeatability is also relatively poor.

The utility model content

The purpose of this utility model provides a kind of solid body food mechanical texture characteristic tester, mainly solving existing detection need manually carry out by the expert, detection efficiency is low and lack the technical matters of scientific basis, it can scientifically detect the size of solid food suffered strength when being chewed and food in the cavity of simulation, have molar compressing solid food when rupturing the pressure size and the deflection of solid food, and will show after the relevant data digitizing and print.

In order to solve above-mentioned technical matters, the utility model is achieved in that

A kind of solid body food mechanical texture characteristic tester is characterized in that: it is connected input by unit clamp, gear train, sensor, PLC (Programmable Logic Controller) and with PLC, output unit constitutes; Wherein:

This unit clamp is the oral cavity of analogue body, and anchor clamps are made of the up and down mobile first half and Lower Half, and the first half and Lower Half be equiped with the corresponding molar in position, and the Lower Half of anchor clamps is equipped with sensor, and the first half of anchor clamps links to each other with gear train;

This gear train is that the signal output part of this sensor is connected to the signal input part of PLC by the stepper motor of PLC control;

This input media is connected PLC respectively with output unit.

Described solid body food mechanical texture characteristic tester is characterized in that: this input media and output unit comprise touch-screen.

Described solid body food mechanical texture characteristic tester is characterized in that: this output unit comprises printer.

Described solid body food mechanical texture characteristic tester is characterized in that: this sensor is connected to PLC by A/D converter.

Nationality is by technique scheme, and the technique effect that the utlity model has is:

Instrument of the present utility model demonstrates accurately, the size of solid food suffered strength in chewing, and the size of size that food is under pressure when beginning to rupture and food deflection, thus can make quantitative evaluation to rigid, the cohesiveness of solid food.Testing process is simple to operate, efficient is high, and the information science that obtains to detect is with accurate.

Description of drawings

Figure one is a structural representation of the present utility model.

Among the figure:

The 1-unit clamp; The 2-gear train; The 3-sensor; 4-PLC; The 5-touch-screen; The 6-printer; The 7-A/D converter.

Embodiment

See also figure one, it is the structural representation of a kind of solid body food mechanical texture characteristic tester of the utility model.As shown in the figure: it is made of the input-output unit that unit clamp 1, gear train 2, sensor 3, PLC 4 and PCL 4 connect, and this input media, output unit comprise touch-screen 5, and this output unit also comprises printer 6.Wherein:

This unit clamp 1 is the oral cavity of analogue body, anchor clamps are made of the first half and Lower Half, and be equiped with the corresponding molar in position on the first half and the Lower Half, the process that the first half and Lower Half can upper and lower mobile simulation be chewed, the Lower Half of anchor clamps is equipped with sensor 3, and the first half of anchor clamps links to each other with gear train 2;

This gear train 2 is stepper motors that PLC 4 controls are arranged, the displacement of the PLC may command and the calculating anchor clamps first half; This sensor 3 can record the force value of anchor clamps Lower Half acquisition and be transported among the PLC 4 and handle, and this sensor 3 records and is transferred to PLC 4 after the force value signal is handled by A/D converter 7.

This input media can be to PLC 4 input test parameter information, and the detection information that this output unit can obtain PLC 4, analysis data message and input parameter information are exported.

The operating process of this instrument is:

To the zero setting of instrument power valve system, use 1N earlier, 2N, 5N, 10N, 20N, 30N, the standard test weight of 50N is single one by one to be placed on the anchor clamps Lower Half sensor, makes the error of demarcating displayed value and standard test weight value less than 1%; After the power valve system is demarcated and to be finished, tested solid food is lain in the middle of the anchor clamps peeling weight;

Start gear train, the screen display solid food is stressed to be zero, molar on the anchor clamps first half contacts with solid food surface one, output unit is shown as the stress value on the solid food, anchor clamps continue to move down, when tested solid food moment institute before fracture stressed when maximum, PLC write down automatically maximum power value and this moment the anchor clamps first half effective displacement, i.e. deflection during solid food fracture; Stressedly on the solid food immediately reduce rapidly, fracture promptly taken place, printable when going out this tested solid food and chewing required strength (rigid) and deflection (cohesiveness) test during fracture finish.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this instructions has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.

Claims

1. solid body food mechanical texture characteristic tester is characterized in that: it is made of unit clamp (1), gear train (2), sensor (3), PLC (4) and the input that is connected with PLC (4), output unit: wherein:

This unit clamp (1) is the oral cavity of analogue body, anchor clamps are made of the first half moving up and down and Lower Half, be equiped with the corresponding molar in position on the tool first half and the Lower Half, the Lower Half of anchor clamps is equipped with sensor (3), and the first half of anchor clamps links to each other with gear train (2):

This gear train (2) is that the signal output part of this sensor (3) is connected to the signal input part of PLC (4) by the stepper motor of PLC (4) control;

This input media is connected PLC (4) respectively with output unit.

2. solid body food mechanical texture characteristic tester according to claim 1 is characterized in that: this input media and output unit comprise touch-screen (5).

3. solid body food mechanical texture characteristic tester according to claim 1 is characterized in that: this output unit comprises printer (6).

4. solid body food mechanical texture characteristic tester according to claim 1 is characterized in that: this sensor (3) is connected to PLC (4) by A/D converter (7).