RU2163522C1 - Washing plant - Google Patents

Abstract

FIELD: cleaning various articles. SUBSTANCE: plant which can be used for washing extra-light metal and plastic articles such as caps and covers has bath assembled of communicating tubes. One tube is arranged vertically and has article loading facility; other one is mounted at certain angle to the first tube and has rotating auger. Ratio of length of auger part immersed in washing solution to that of part held above the solution is 1:2.0-3.0. EFFECT: provision for eliminating faults in articles; enlarged functional capabilities of plant. 1 dwg

Description

 The invention relates to the field of cleaning products and can be used for washing ultralight and plastic products such as caps and covers.

 A device for cleaning products, including a bath with a washing solution, divided into zones of preliminary and subsequent cleaning, a device for moving parts and a dirt trap (see ed. St. N 396128, CL 08 V 15/00, bull. 36, published on 08.29.73).

 In the known device, the movement of products in a washing solution is carried out by a conveyor.

 A disadvantage of the known device is the low quality of washing products such as caps and caps, since the products are not mixed during washing.

 A device for washing parts, including an inclined drive drum with an internal helical spiral, a device for single-layer placement of the workpieces in the drum (see ed. St. N 426725, CL 08 V 3/06, bull. N 17, publ. 05/05/74 g.). The helical spiral of the drive drum is a compression spring, and the device for single-layer placement of parts in the drum is made in the form of several removable elastic disks.

 A disadvantage of the known device is that when processing thin-walled parts such as aluminum caps or plastic caps, they are damaged by a compression spring.

 A known installation for washing small parts, containing a bath for washing liquid, an inclined drum located therein with a rotation drive with an auger partially immersed in the bath (see ed. St. N 1018726, class B 08 V 3/06, bull. N 19, publ. 05.23.83 g.).

 In the known design, the loading and unloading of parts requires additional working time, since first the parts are loaded into the drum, then the installation is closed and the parts are washed in the rotating drum, after the washing of the parts is completed, the drum stops, opens and the parts are unloaded. The process is stretched over time, which reduces productivity.

 The closest technical solution to the claimed one is a unit for washing parts, containing a bath for a washing solution, a screw partially immersed in a bath, means for loading and unloading parts (see ed. St. N 650674, class B 08 V 3/12, Bulletin No. 9, published on 03/05/79). Ultrasonic transducers are installed in the bath to create oscillations in the washing solution.

 When the drum with the screw rotates, the part moves from the bottom up to a certain level from the bottom point of the screw to the point of imbalance. Tearing down, the part falls down with acceleration, at the same time it hits the surface of the rods of the drum. Due to this, the parts are cleaned. Since the loading of parts is carried out immediately in the working area of the bath between the auger cavities, when processing ultralight parts with internal cavities, they do not have time to sink, especially when using a cleaning solution with a low density, forming a mash in the loading zone. When processing thin-walled parts, this leads to damage. In addition, in the known design there is no drying zone, which requires additional costs to obtain clean and dry products.

 The objective of this technical solution is to eliminate damage to ultralight parts during cleaning and expanding the technological capabilities of the installation.

 The problem is achieved in that in the known installation for washing products containing a bath for a washing solution, the screw is partially immersed in a solution, means for loading and unloading parts, the bath is made in the form of interconnected pipes, one of which is located vertically, the second at an angle to first, while the loading means is aligned with the vertical pipe, the screw is rotatably placed in the inclined pipe, and the ratio of the lengths of the parts of the screw immersed in the washing solution and under the solution is 1: 2.0-3.0.

 The bathtub, made in the form of interconnected pipes, avoids damage to ultralight products by moving them into the washing zone by slow immersion in the volume of the washing solution located in the vertical pipe, and placing most of the screw above the washing solution creates a drying zone in the upper compartment of the inclined pipe, which expands the technological capabilities of the installation.

 The drawing shows a General view of the installation for washing parts. The installation contains a bath made in the form of interconnected pipes, the pipe 1 is located vertically, and the pipe 2 is at an angle to the pipe 1. Means for loading 3 products are installed in the upper part of the pipe 1. In the pipe 2 there is a screw 4, which is connected to the electric drive 5. An unloading device 6 is installed in the upper part of the pipe 2. A washing solution, which is a liquid with a low density, for example, “Hexane” solvent, is poured into the bath, filling the connected pipes 1 and 2, so that one part of the length of the screw 4 is immersed in the solution , but not enee two but not more than three parts of the length of the screw 4 is above the wash solution. This ratio determines, on the one hand, the necessary level of immersion of parts in the inclined pipe 2 to achieve the required amount of washing, on the other hand, the time necessary and sufficient for swelling and evaporation from the parts of the washing solution. With a ratio of screw lengths of 4 shorter than 1: 2, a large amount of washing liquid remains on the workpieces, and with a ratio of more than 1: 3, already dried parts will stay in the bath longer than required.

 Installation works as follows.

 The washing solution is poured into the bathtub, filling pipes 1 and 2. The electric drive 5 transmits rotation to the screw 4, which creates a disturbance of the washing solution. Products, which are mainly aluminum caps and plastic covers, from the load 3 fall on the surface of the washing solution. Under the influence of fluctuations in the solution, the product cavities are gradually filled with liquid and the product sinks, descending through the pipe 1 down to the rotating screw 4. The latter moves the products through the pipe 2 up to the loading device 6. During the time the product is in the pipe 2 above the washing solution, it drains and evaporates washing liquid. Dried items are removed from the loading device 6.

 The installation allows washing with simultaneous drying of ultralight products without damaging them, due to the fact that the products enter the washing zone, slowly immersed in the volume of liquid in the vertical pipe, and moving along the inclined pipe, the products are washed and dried.

Claims (1)

 Installation for washing products containing a bath for a washing solution, a screw partially immersed in a solution, means for loading and unloading parts, characterized in that the bath is made in the form of interconnected pipes, one of which is located vertically, the second is at an angle to it, this means for loading combined with a vertical pipe, the screw is placed in an inclined pipe with the possibility of rotation, and the ratio of the lengths of the parts of the screw immersed in the solution and located above the solution is 1: 2.0 - 3.0.