JPS6227997A - Liquid pressure connection mechanism for drum of industrial washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism applicable to industrial washing machines and is particularly contemplated for establishing a hydraulic connection with the rotating drum of the washing machine.

Specifically, hydraulic connections can supply cold or hot water and various types of additives to the drum during the rotation stage, and can take samples at different parts of the drum and It has the ability to introduce temperature probes and obviously carry out removal of residual water.

As is well known, industrial washing machines are based on a continuous operating process, i.e. a washing tunnel is established in the washing machine, and from one end of it the dirty washing material enters in batches, which are fed intermittently. On the other hand, clean items to be washed come out intermittently from the opposite end.

This type of washing machine advantageously has a rotating drum housed inside the housing, said drum being perforated, and between the drum and the housing a perforated wall is provided. There is no limit to the arrangement of any number of types of conduits in the housing for the purpose of transporting fluids or any of the other products mentioned above.

However, it is of great interest to have a washing machine for said housing. For, apart from the obvious advantageous economic effects that may arise from the removal of such components, the absence of housing means that
Direct access to the rotation and drive mechanism of the drum,
This simplifies its maintenance and repair, and at the same time isolates such elements from the fluid in which the washing machine operates, which in turn prevents these elements from being affected by moisture, corrosion, etc. This is because it gives you a longer lifespan.

However, the removal of said housing may pose problems in terms of fluid transport within the drum. This is because, as mentioned above, in this type of washing machine, which has a continuous working process, the drum is in permanent motion;
Conduits for exchanging such fluids, on the contrary, are stationary and when attempting to obtain a watertight connection between one installed element (conduit) and one moving element (drum). This is because trouble will arise.

This problem is completely solved with the hydraulic connection mechanism on which the object of the invention is centered.

Said mechanism essentially consists of a pair of associated profiles that float around the drum, the pair of profiles, C
Establish the formation of an outer groove in which the cross-sectional rubber joint is connected. This joint has a lip on each of its lateral branches that ensures complete watertightness between the joint and the section connection (7) a watertight chamber is created between the drum, the section and the rubber seal. It will be done.

The special way of connection between these elements allows the drum to rotate freely together with the profiles joined to the drum, while the rubber joints are up to a stationary one, for which there are two parts joined to the drum. It is sufficient to provide a series of interconnecting holes in the side wall of the drum between the profiles and to connect the lay or fluid conduits to the rubber joints by means of suitable nipples, thereby connecting the installed and moving elements. A watertight connection is obtained between the two.

Thus, according to the connection device in question, the drum can be mounted directly on the drive frame with any type of wall or housing, assisted by corresponding internal elements which are beyond the scope of the invention. structure is possible.

The drive frame mentioned above, ie the rollers for holding and driving the drum, as well as the transmission and the motor, are remote from the action of the cleaning fluid and are directly accessible.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to embodiments.

With reference to the drawings, the mechanism of the invention results from two profiles 1 connected to the outside of a drum 2, preferably by welding and in such a way as to ensure complete watertightness. These profiles 1 establish an external groove 3 whose bottom is constituted by the actual wall 2 of the drum, but with a number of holes 4 in said wall 2 in this area.
It has the special feature of being provided with.

In the groove 3 thus obtained and which is circumferential with respect to the drum 2, a rubber joint 5 is inserted, as can be seen in FIG.
are connected, and their joints are also circumferential. As seen in Figure 2 with all the details, the rubber joint is C
The lateral branch is provided with a lip 6 which affects the lateral part 1 and ensures complete watertightness between said part and the actual rubber joint 5.

In this way, the rubber joint 5 transforms the annular groove 3 of the drum 2 into a closed chamber, in particular the part of the aforementioned chamber constituted by the drum 2 and the flat shape A', A1, which retains the water honey. It has the special feature of being able to rotate freely while moving, while the rubber joint (5) is a stationary joint.

At that time, make one or more orifices in the joint 5, and insert each joint nozzle or nipple 7 there.
It is sufficient to obtain a connection from each stationary hydraulic connection to the annular chamber 3 by installing a hydrothermal drain inside the drum 2, specifically through the chamber 3 and the perforated wall 4. or cold water, various kinds of additives, etc., and the sampling of fluids, the introduction of temperature probes, etc. can be carried out in the same way, and the removal of dirty water can be carried out in the same way. can also be implemented.

By means of the mechanism that is the subject of the invention, and as can be seen in detail in FIG. It rests on a pair of rollers 9 assembled to 10,
The pair of rollers 9 is actuated by a corresponding motor assembly via a pulley 11 connected to said pulley, so that the entire conduction assembly is exposed to the air and isolated from the influence of the cleaning fluid in direct proximity. can.

Evidently, the rubber joint 5 is assisted by a flange 12 neatly distributed thereon, which flange 1
2 allows for a stable attachment to any installation support, for example a bridge attached to the drum itself, and also makes the watertightness of its lateral branches to the profile 1 to a certain extent simply by its own elasticity. can be established by any other means, such as by cooperating with complementary means, such as steel rods buried in them.

It is believed that this description is necessary for those skilled in the art to fully understand the scope of the invention and the benefits to be derived therefrom.

Changes may be made in the materials, shape, size or arrangement of components unless such changes are considered to alter the essence of the invention.

The terms used in this specification should be interpreted in their broadest sense and should not be construed in a restrictive manner.

[Brief explanation of the drawing]

1 is a schematic illustration of an industrial washing machine drum with a hydraulic connection constituting the subject of the invention, partially cut away so that the internal structure can be seen clearly; FIG. 3 is a view similar to FIG. 2, but showing the moving supports of the drum, clearly showing how they are generally independent of the cleaning fluid. You can see it. 1...Shape 2@...Drum 3...Groove
4-axis Φ drum perforated section 5e... annular joint 6o, connecting lip 7/e11 nozzle size or nipple = 9-

Claims (1)

[Claims] (1) the introduction of water or additives, with the aim of making it possible to remove the classical housing closing the drum;
In a hydraulic connection system for the drum of an industrial washing machine incorporating suitable connections for sample collection, temperature probes, residual fluid removal, etc., a pair of profiles fully connected around the drum periphery. and outwardly, these profiles establish the formation of an outer circumferential C-section groove for receiving a C-section annular joint with the cavities juxtaposed;
Said annular joint has on the outside of each of its lateral branches a watertight connecting lip to said profile, and this all depends on the combination of these elements of the drum established between the two profiles. The perforated section is arranged to define a circumferential chamber in communication with the inside of the drum, to which a hydraulic conduit is connected via a nozzle or nipple of a rubber joint, and to which the drum is connected. A hydraulic connection mechanism, characterized in that it is arranged such that it can freely rotate with respect to a rubber joint that is maintained in a stable state and remains watertight, and a conduit that is connected to the joint, together with a profile that is connected to the joint. .