RU2498121C1 - Fluid-jet element - Google Patents

Abstract

FIELD: measurement equipment.

SUBSTANCE: fluid-jet element includes fastening assemblies in a flat plane, a flow cavity with feed, drain, control and receiving passages in the element plane; with that, fastening assemblies and the plane, on which the flow cavity with feed, drain, control and receiving passages is arranged, are separated from the element plane with a barrier.

EFFECT: design of a fluid-jet element reduces the number of used working material at growing using a 3D prototyping method, improves tightness at contact with other layers of the design owing to reducing the contact surface area, by bringing it to reliable one; reduces the time required for the layer hardening in presence of a barrier; reduces the manufacturing time of the whole fluid-jet element.

6 cl, 2 dwg

Description

The invention relates to devices for jet automation (pneumonics) and can be used in measuring systems in technological pipelines for measuring the amount of gas or liquid in production processes, as well as in metering units of energy resources for commercial calculation in housing and communal services.

Known inkjet elements made by injection or extrusion of plastics in the form of printed circuit boards assembled in a bag ("sandwich", a stack) (1. Inkjet pneumohydroautomatics. M., Mir, 1966, p. 269-288).

Known inkjet elements made by the method of electroforming, in the form of an integrated circuit in the plane (2. Pneumatic tools and control systems. M., Science, 1970, p.372-377).

The disadvantages of the manufacture of known inkjet elements is the location of the geometry in the space of the thickness of the sheet, its use is completely within the sealing planes, i.e. contact surface, for the absence of leakages between the supply and drain channels, control and reception, as well as for the absence of drainage into the atmosphere.

In addition, the use in this design of inkjet elements of the entire thickness of the sheet leads to an overspending of the material in the manufacture and is a disadvantage.

Further, a sufficiently large sheet thickness with a ratio in the inkjet element of the channel depth to its width of 3-4 (2) during manufacture leads to deformation of the sealing plane, difficulties in manufacturing during stamping (replaced by three or four profiles of lesser thickness, but already notched), overuse of electric energy during spark processing of the edges of the geometry of the inkjet element, when casting into a mold also leads to the possibility of excessive consumption of material, the need for large pressures to prevent the formation of voids and deformation of the profile ometrii jet element.

With a slotted construction, drain channels for communication with the atmosphere practically cut the sheet material, which worsens the flatness of the structure, it becomes possible to deform the geometry during processing, curvature of the surface of the inkjet element and leakage along the sealing surface.

The design flaws of the known inkjet elements include a large sealing area with its question of unreliability, attempts to constantly check, find and apply additional methods for checking the sealing, additional fastener elements or an increase in the fastening force of the fastener, selection and placement of fastened clamps so that they do not disperse during vibration , the sealing and their functioning were not broken, which makes the production of inkjet elements more expensive.

To correct deficiencies in the manufacture of known inkjet elements, it is necessary to apply the finishing of the surfaces of the working circuit boards with diamond wheels using cutting fluids, in particular water-soda solutions.

The closest in technical essence to the proposed invention and adopted as a prototype is the design solution in the manufacture of plates with cut out inkjet elements, stacked in layers in a bag (3. Wissensspeicher Fluidtech-nik.VEB Fachbuchverlag Leipzig. 1988, p.127).

The specified design contains fastening nodes in a flat plate, in the plane of the element a flow cavity with power, drain, control and receiving channels that are cut, extruded, cast, or made in another way. With traditional manufacturing methods, excess material is almost always separated from the desired configuration of the part, which is a disadvantage of the known solution. Along with the geometry of the inkjet element, excess material remains, which serve for the strength and rigidity of the plate itself beyond measure. The areas of the sealing plane are overestimated, the ratio of the depth of the flow cavity of the element and the width, for example, the power nozzles are small and do not correspond to modern ideas about the optimal ratio for the functioning of the inkjet element. The possibility of layer-by-layer construction of a physical part (cultivation) in accordance with its three-dimensional model (3D) is not used with a reduction in its manufacturing time.

The technical result of the proposed device is to reduce the amount of working material used when growing in 3D by the prototyping method (stereolithography), improve sealing when in contact with other layers of the structure by reducing the contact area, leading to reliable reduction of the curing time of the layer in the presence of a barrier, and reducing the manufacturing time the entire inkjet element, expands the functionality of the device.

The technical result is achieved by the fact that a jet element made in stereolithography is proposed, containing fastening nodes in a flat plate, in the plane of the element a flow part with power, drain, control and receiving channels, which has fastening nodes and a plane on which the flow part with channels is placed supply, discharge, control and reception, separated from the plane of the element by a barrier.

In the proposed inkjet element, the height of the barrier is at least three widths of the nozzle of the feed channel.

In the proposed inkjet element, the width of the barrier is at least half the width of the nozzle of the feed channel.

In the proposed inkjet element, the barrier and the flow part with channels are located on both sides of the plane of the plate element.

In the proposed inkjet element, the flow cavity with channels is located at the same level with the plane of the element.

In the proposed inkjet element, the height of the channel barrier is not the same as the height of the barrier of the fasteners.

Figure 1 shows the design of the inkjet element, figure 2 is a section along the AOA plate of the inkjet element.

An inkjet element contains: 1 - a plate of an inkjet element, 2 - fixing units, for example, openings with a barrier, 3 - a flowing cavity of an inkjet element, 4 - a supply channel, 5 - drainage (drainage) channels, 6 - control channels, 7 - receiving channels, 8 - the base plane of the plate of the inkjet element. 9 - a barrier, 10 - a sealing plane with a cover or another plate, in which the inkjet element is also located, 11 - a power nozzle, 12 - a sealing plane that determines the building thickness of the plate.

The base plane 8 of the plate of the inkjet element is a structural basis (base), relative to which the plane 12 is formed, the thickness of the plate and other functional planes 3, 10 or figure 9 on different sides.

The entire functional part of the inkjet element, including the flowing part 3 with power channels 4, drain 5, control 6 and receiving 7, is located in the plane 3, which can be located when growing relative to the base plane 8 of the plate of the inkjet element at different levels or at the same level with it . The total thickness of the plate between planes 12 and 8 determines the rigidity of the entire structure of the inkjet element, how tightly the other elements of the general structure will be pressed against each other along the fastening elements 2 along the sealing planes 10 and 12 to ensure the absence of leakage of the working fluid and functioning according to the requirements of the project.

The height of the barrier 9 is limited by a plane 10, which increases the reliability of the seal, because the contact area of the interface with the next element is reduced during batch installation or the cover.

The axis of crystallization during the growth of the inkjet element in this scheme is adopted perpendicular to the area of the drawing. However, it may be located in the plane of the drawing.

In the proposed inkjet element, the height of the barrier 9 is not less than three widths of the nozzle 11 of the supply channel 4, thereby achieving the required functioning of the inkjet element assembly with other elements.

In the proposed inkjet element, the width of the barrier 9 is not less than half the width of the nozzle 11 of the power channel 4, which ensures the reliability of the seal and the absence of leaks.

In the proposed inkjet element, the barrier 9 and various configurations of the flowing parts 3 with channels are located on both sides of the plane 8 of the plate element 1. This arrangement extends the functionality of the construct.

In the proposed inkjet element, the flowing part 3 with channels is located at the same level with the base plane 8.

Reducing the amount of material is achieved by organizing a barrier that separates the geometry of the inkjet element from the rest of the construct. With a layer-by-layer build-up of material in a sheet structure, crystallization of a smaller volume and its thickness improves.

Reducing the curing time of the layer along the height of the geometry of the inkjet element, because the barrier has a size of 2/3 of the height of the entire thickness of the sheet material, the rest is 1/3.

Reduced manufacturing time of the entire inkjet element, as the geometry of the element is separated by the barrier from the rest of the structure due to different heights.

The listed features are absent, in our opinion, in the known designs of inkjet elements.

The proposed design of the inkjet element reduces the amount of working material used when growing in 3D by the prototyping method (stereolithography), improves sealing when in contact with other layers of the structure by reducing the contact area, leading it to reliable, reduces the curing time of the layer in the presence of a barrier, reduces the manufacturing time of the whole inkjet element and extends its functionality.

Claims (6)

1. An inkjet element containing fastening nodes in a flat plate, in the plane of the element a flow cavity with power, drain, control and receiving channels, characterized in that the fastening nodes and a plane on which a flow cavity with power, drain channels, control and receiving are located are separated from the plane of the element by a barrier. 2. The inkjet element according to claim 1, the height of the barrier is at least three widths of the nozzle of the feed channel. 3. The inkjet element according to claim 1, the width of the barrier is at least half the width of the nozzle of the feed channel. 4. The inkjet element according to claim 1, the barrier and the flow part with channels are located on both sides of the plane of the plate element. 5. The inkjet element according to claim 1, the flow cavity with channels is located at the same level with the plane of the element. 6. The inkjet element according to claim 1, the height of the channel barrier is not the same as the height of the barrier of the fasteners.

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