SU940008A1 - Device for determination of material rheological characteristics - Google Patents

Description

one

The invention relates to monitoring the state of the technological process according to the physicomechanical parameters of the product, in particular, according to its rheological characteristics, and can be used, for example, in animal husbandry to control wet agitators.

A device for determining the readiness of food products is known, containing a sensitive element in the form of a flat plate, a force meter and an actuator made in the form of a source of pneumatic pulses and a pneumomechanical transducer, and the load meter includes a differential pressure gauge, a reference pressure setter and a pneumatic switch 1.

The disadvantage of such a device is the impossibility of analyzing mixtures whose components are different in (; isiko-mechanical properties and contain compacted inclusions of the product in the form of pieces (for example, potato tubers) in wet animal masses).

Closest to that proposed by the technical essence is a device for determining the rheological characteristics of materials, comprising a piston, reciprocatingly moving in a cylinder immersed in a controlled material, and a measuring system. In the cylinder, there is a perforated wall, through the holes of which, during the course of the piston downward, the controlled material is pushed out to the outside.

The disadvantage of this device 15 is insufficient accuracy for determining the rheological characteristics of heat treatable feed mixtures, 4.0 makes it difficult to determine their readiness 20.

Claims (2)

The purpose of the invention is to improve the accuracy of determining the rheological characteristics of heat treated feed mixtures. The goal is achieved by the fact that a device for determining the rheological characteristics of materials containing a piston placed in a cylindrical housing with a perforated wall and associated with a reciprocating drive, and the measuring system further comprises a sealing ring, a bearing and a rotational drive, the piston is made with a relief surface, perforated wall - with the possibility of longitudinal movement, and the drive of the reciprocating motion is made in the form of springs cable and spring-loaded rollers, with one end of the spring attached to the sealing ring and the second to the cylindrical body, perforated CT k is connected to the cable, which is spring-loaded rollers mounted on the cylindrical body, connected to the sealing ring The pin is connected to the sealing ring by means of a bearing, and the rotational drive is connected to the piston. The drawing schematically: shows the device. The device comprises a connector 1 st cylindrical body 1 in which a piston 2 is placed with a relief surface connected to the sealing ring 3 via a bearing, as well as a reciprocating drive including a spring 5, a perforated wall 6 connected by a cable 7 through spring-loaded rollers 8 with a sealing ring 3. The disk, in turn, is supplied with a drive 9 of the rotational motion and connected to it via a rod 10 on which a sliding sleeve 11 is mounted, connected to the disk of the drive 9 of the rotational motion through the spring 12. On The sliding sleeve 11 and the drive disk are positioned, for example, magnets 13, and on the cylindrical housing 1 in the plane of rotation of the magnets there are installed, for example, reed switches, the outputs of which are connected to the time interval measurement circuit 15. The movement of the sealing ring 3 is monitored by means of the DEVICE 5M 16, for example. in the form of a core with a coil, wherein the coil is attached to the detachable cylindrical body 1, and the core is connected to the sealing ring 3. The device operates as follows. The magnets 13 and reed switches} k are set to the zero state when the rotational drive is idling. The perforated wall 6 is opened, while the cable 7 carries away the sealing ring 3, the bearing C and the piston 2. The mass is sucked into the cavity of the cylindrical body with a single-preload spring 5. The spring-loaded rollers 8 support the cable. The perforated wall 6 is closed, the cable 7 weakens the action on the spring 5 and the feed mass by pushing the container through the holes and the walls are wiped while the piston 2 is turned on while the drive 9 is turned on, for example, in the form of steamed potato pieces, changes the force to the spring 12, the latter thereby twisting. When the spring 12 is twisted, the position of the magnets 13 changes relative to each other. The offset is fixed by the reed switches 4 and the signal from them is fed to the time interval measurement circuit 15. As the product is cut by the piston 2 with a relief surface and is pressed through the holes in the perforated wall 6, the sealing ring 3 moves upwards. In this case, the core of the transducer & c in the coil changes the induction current in it. The magnitude of the EMF at the output of the coil is proportional to the movement of the sealing ring 3, i.e. the speed of extrusion of the analyzed mass, and the rate of change of EMF is proportional to the speed of extrusion of the mass. Thus, measuring the magnitude of the twisting angle of the spring 12, as well as the amount of mass displaced and the speed of its displacement, determine the rheological characteristics of the material and, therefore, the degree of readiness of the heat treatable feed mixtures. The technical and economic effect of the present invention is to improve the accuracy of determining the rheological characteristics of heat-treated feed mixtures by making a piston with a relief surface, a perforated wall -: with the possibility of longitudinal movement and by inserting a sealing ring with a bearing and driving rotational motion, and also making the drive reciprocating movement of the new modification, as a result of which the energy costs for the production of fodder are reduced mixture and improves its quality. Apparatus of the Invention A device for determining the rheological characteristics of materials, comprising a piston housed in a cylindrical body with a perforated wall and associated with a reciprocating drive, and a measuring system, characterized in that, in order to improve the accuracy of determining the rheological characteristics of thermally processed feed this mixture, it additionally contains a sealing ring, a bearing and a rotational drive, the piston is made with a relief surface, perforated wall - with the possibility of longitudinal movement, that the drive reciprocation is in the form of a spring, a cable and a spring-loaded roller, wherein one end of the spring attached to the sealing ring, and the second -. to the cylindrical body, the perforated wall is connected to the cable, which through spring-loaded rollers mounted on the cylindrical body, is connected to the sealing ring, while the piston is connected to the sealing ring by means of a bearing, and the rotational motion drive is connected to the piston. : Sources of information, n (are given in attention during examination 1. USSR author's certificate No. 321722, Cl. G 01 N 11/1, 1970. 2. Automation of production and industrial electronics. - Encyclopedia of modern technology. Soviet Encyclopedia M., 1964, Vol. 1, p. 133-134 (prototype).