CZ2021305A3 - Equipment for opening a sample vessel of a laboratory mill - Google Patents

Abstract

The solution relates to a device for opening a sample vessel of a laboratory mill and a method of opening, which is characterized in that a wiper motor (8) connected by a crankshaft (9) is mounted under the worktop (2) on which the laboratory mill (1) is placed. and a rod (10) with a yoke (5) fixing the sample vessel (4) to the cyclone separator (3). The wiper motor (8) is controlled by a signal from an infrared sensor (11) attached to the handle (7) of the sample vessel (4). The whole device works automatically and thus saves otherwise laborious work of the mill operator.

Description

Equipment for opening a sample vessel of a laboratory mill

Field of technology

The solution relates to a device for opening a sample vessel of a laboratory mill, which enables automatic non-contact operation.

State of the art

Determining the quality of wheat is an essential and widely performed activity in agricultural purchasing companies, breeding organizations, research and public administration (UKZUZ). The determination of alpha-amylysis activity, the so-called fall number, is not possible by non-destructive spectrometric methods and is performed by a reference method from whole-area scrap. For these purposes, it is necessary to grind in a standard way. A standardized hammer mill laboratory mill is used for grinding. However, the opening of the sample container of the laboratory mill is performed manually, which is undesirable due to the strain on the operator leading to orthopedic problems.

The essence of the invention

The above-mentioned disadvantages are eliminated by the device for opening a sample vessel of a laboratory mill according to the invention, the essence of which consists in a work plate on which a laboratory mill is placed, a wiper motor connected to a crankshaft separator. The wiper motor is in contact with the signal from an infrared sensor mounted on a laboratory mill at the handle of the sample vessel, when the caliper is provided with springs at its ends.

The device according to the invention operates in such a way that, after gripping the sample container handle, the infrared sensor signals the wiper motor, which turns the crankshaft to the bottom dead center, retracts the caliper holding the sample container speed and the crankshaft returns to top dead center. The springs in the upper part of the caliper return it to its original position, when after emptying the grain sample, the movement is repeated and when the lower dead center is reached, the sample vessel is placed back under the cyclone separator and the whole process is repeated automatically.

The device according to the invention is arranged under a worktop on which a laboratory mill is placed, to which a wiper motor is attached, connected by a crankshaft and a rod with a yoke fixing the sample vessel to the cyclone separator. The wiper motor is connected in such a way that, after receiving a signal from an infrared sensor mounted on the sample container handle, it makes one turn.

The device according to the invention for opening a sample container of a laboratory mill serves for automatic non-contact operation of the laboratory mill and is easy to operate. This greatly simplifies the work of the mill operator.

Clarification of drawings

In the accompanying drawing, FIG. 1 schematically shows a drawing of a laboratory mill with a device according to the invention for opening a sample vessel.

The device according to the invention for opening a sample vessel of a laboratory mill has been successfully verified by the inventors in the laboratories of the applicant, which is the Selton Research Center, s.r.o., Stupice, CZ.

- 1 CZ 2021 - 305 A3

Examples of embodiments of the invention

Example 1

Under the worktop 2, on which the laboratory mill 1 is placed, a wiper motor 8 connected by a crankshaft 9 and a rod 10 with a yoke 5 fixing the sample vessel 4 to the cyclone separator 3 is mounted. The wiper motor 8 is connected so that the sensor 11 attached to the sample container handle 7 makes one turn.

The device operates in such a way that, after gripping the handle of the sample vessel 7, the infrared sensor 11 signals the wiper motor 8, which turns the crankshaft 9 to the bottom dead center, pulls the yoke 5 holding the sample vessel 4 at the cyclone separator 3 and the sample vessel 4 can be removed. The wiper motor 8 continues to make one revolution and returns the crankshaft 9 to the top dead center, while the springs 6 in the upper part of the yoke 5 return it to its original position. After emptying, the process is repeated, and when the bottom dead center is reached, the sample vessel 4 is placed back under the cyclone separator 3.

The whole method of grinding the examined grain is automatically repeated, thus saving the laborious work of the mill operator.

Industrial applicability

The new device for opening the sample container of the laboratory mill enables automatic non-contact operation of the laboratory mill and significantly simplifies the work of the mill operator.

Literature

Laboratory mill

Claims (1)

PATENT CLAIMS Device for opening a sample vessel of a laboratory mill, characterized in that it comprises a work plate (2) on which a laboratory mill (1) is placed, a wiper motor (8) connected by a crankshaft (9) is mounted under the work plate (2). ) and rod (10) with caliper (5) 5 fixing the sample vessel (4) to the cyclone separator (3), the wiper motor (8) being in contact with a signal from an infrared sensor (11) mounted on a laboratory mill (1) at the sample vessel handle (7) (4), when the yoke (5) is provided with springs (6) at its ends.