JPH0549251B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fully automatic net washing machine that automatically washes and removes deposits from fishing nets.

[Background of the Invention] In general, fixed nets and small nets, and especially in aquaculture and cultivation fisheries, when nets that partition water areas are laid in the sea for a long time, various deposits block the nets.

For example, if fish are cultured for three months in a box-shaped fish net, shellfish such as oysters and barnacles will appear on the net threads.
Various types of seaweed attach to the net and block it. This not only prevents the inflow and outflow of seawater through the mesh, but also interferes with the feeding of the fish being cultured, causing the fish to die due to a drop in oxygen concentration in the water area, or lack of oxygen. There is a problem with this.

It has been proposed to apply chemical paints to the nets to prevent seaweed and other substances from adhering to them. However, this is due to inorganic substances in the applied paint.
For example, mercury contaminates seawater, so its use is prohibited.

Based on the circumstances described above, the only way to remove the deposits from the nets is to take them ashore and wash them with water.
Traditionally, all of this work was done manually.

By the way, a fishing net that is 20 meters long, for example, weighs more than 2 tons, and if it becomes saturated with water, it becomes even more difficult to do the work manually.
Washing these nets with water requires a large number of personnel and a lot of time to move or turn over the fishing nets, which is disadvantageous in terms of work efficiency and costs.

In addition, in manual washing operations, water cannot be used effectively, and even if it is possible to remove the deposits on the surface of the net, it is not possible to sufficiently remove the deposits on the back side. Can not.

[Object of the Invention] In view of the many problems in the prior art that require solutions, as described above, the object of the present invention is to automatically hoist a net and accurately cover both sides of the net. To provide a fully automatic net washing machine which almost completely removes deposits from the net by washing with water.

A further object of the present invention is to provide a fully automatic net washing machine that can economically clean nets in an extremely short period of time.

Another object of the present invention is to provide a fully automatic net washing machine that can completely clean even the back side of a plurality of overlapping nets from which deposits are to be removed.

Another object of the present invention is to provide a fully automatic net washing machine that can wash nets under optimal conditions, regardless of the type of net, size, degree of dirt, etc.

[Structure of the Invention] In order to solve the problems detailed above and achieve the above object, a fully automatic net washing machine according to the present invention is provided with a fully automatic net washing machine by attaching a plurality of ropes to an underwater net. High-pressure water is directed to a net support shelf at the front end of the machine, and is sprayed onto a predetermined area of the net that has been lifted up from the front end to the net support shelf that slopes upward toward the rear, radiating it violently onto the surface of the net. The water and the water that passes through the mesh and impinges on the net support shelf wash away the deposits that have adhered to both the front and back surfaces of a predetermined area of the net, and furthermore, the water jet is applied to one side of the net. The system gradually winds up the washed area of the net from one side end to the opposite end, and automatically stops its operation after the entire surface of the net has been cleaned.

Next, the fully automatic net washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the fully automatic net washing machine 10 of the present invention includes at least one pair of front columns 12 and one pair of rear columns 14, each of which stands upright from the floor. A side frame 16 is attached that slopes upward at a predetermined angle from the top of the rear column 14 toward the rear column 14. Both side frames 16 arranged at an angle
, a plurality of circular pipes 18 are arranged and fixed in parallel with each other at regular intervals to form a support shelf 20 for the net N to be cleaned.

A net reeling device 22 for reeling off the net N is disposed on the rear column 14 at a position almost at the same height as the top of the net support shelf 20.

Further, below the net reeling device 22, a hoist is provided that is operated until the net N of the water column is pulled up to the net support shelf 20 using the rope R at the initial stage and transferred to the net reeling device 22. A device 24 is provided. This hoisting device 24 itself has a known structure, and the rear struts 1 on both sides
A plurality of ropes R are wound around a rope winding drum 26 which is attached so as to extend and rotate between four ropes. The end of this rope R is connected to the net N
By attaching the front edge of the net N to one end and rotating the drum 26, for example, the underwater net N is pulled up and brought closer to the device 10, and the net supporting shelf 2
0 and further reaches the net reeling device 22. As described later, the net reeling device 22
When the operation of the net N reaches the stage where it is rolled up, the operation of the hoisting device 24 is stopped.

As shown in FIGS. 3 and 4, the net reeling device 22 includes a plurality of brackets 28 fixed at regular intervals to a beam member 25 extending horizontally between the rear columns 14 on both sides. A rotating shaft 30 supported by a bracket 28 and a pair of brackets 28
A plurality of net reeling drums 32 extend between them and rotate together with the rotating shaft 30, and a plurality of net reeling drums 32 are attached to one side of each bracket 28 in order to be disposed between adjacent net reeling drums 32. It includes a catch drum 34, a plurality of catch pins 36 provided on each catch drum 34, and a cam member 38 for driving these catch pins 36.

The catch drum 34 is the net reeling drum 3
It is a cylindrical body with a diameter slightly smaller than that of the bracket 28, and fits and supports one end of the adjacent net reeling drum 32, and the other end is mounted on an annular flange 40 provided on the corresponding side of the bracket 28. There is.

On the side of the bracket 28 facing the catch drum 34, a cam member 38 freely fitted around the rotating shaft 30 is secured to a suitable fixing device 4 such as a bolt.
It is installed in 1.

Holes 44 are provided in the outer circumferential wall 42 of the catch drum 34 at equal intervals from the center of the rotating shaft 30, for example at an angle of 60 degrees. The catcher pins 36 are inserted into these holes 44, and the catcher pins 36 slide in the diametrical direction of the catcher drum 34 by the cam member 38, projecting outward from the outer circumferential wall 42 of the catcher drum 34, and connecting to the net. The net N is entered into the net N, and the net N is successively pulled up in accordance with the intermittent rotation of the net reeling drum 32 and the catch drum 34.

In order to do the above, catcher pin 3
A cam driven roller 46 is rotatably attached to the inner end of the roller 6 . On the other hand, as shown in FIG. 4, the cam member 38 is provided with a cam groove 48 having a contour similar to that of an egg, and a cam driven roller 46 of the catcher pin 36 is fitted into this cam groove 48.

In particular, the cam groove 48 has a small diameter portion 48a on the side close to the rotating shaft 30 on which the cam member 38 is mounted, and a large diameter portion 48b on the opposite side, so that the catch drum 34 rotates together with the rotating shaft 30. Accordingly, the catcher pin 36 is projected and inserted into the mesh at the portion of the mesh N that has reached the catcher drum 34, and at the same time as the mesh N is actively reeled out, the mesh N is caught up in the catcher drum 34. It retreats into the outer peripheral wall 42 of the catcher drum 34 so that it hangs down without any problem.

As shown in FIG. 3, when the catcher pin 36 rotates by a predetermined angle θ in the reeling direction (arrow A) of the net N from the vertical line XX passing through the center of the catcher drum 36, the catcher pin 36 It is desirable that it protrude outward from the outer peripheral wall 42 of the catch drum 36 for the longest length. This angle θ can be, for example, about 10 degrees.

With the above-described structure, the fully automatic net washing machine 10 according to the present invention sprays water under pressure from above the net N to wash the entire surface of the net while the net N passes through the net support shelf 20. Remove deposits.

To this end, as shown in FIGS. 1 and 6, a water washing device 50 is provided above the net support shelf 20 so as to be movable in the longitudinal direction of the pipe 18 constituting the net support shelf 20. The water washing device 50 includes, for example, a top framework 52 that protrudes above the net support shelf 20 from the top of the rear struts 14, a rail 54 extending between the rear struts 14 is fixed to the framework 52, and a traveling frame structure 56 is provided. is mounted so as to be suspended by wheels 58. Wheels 58 are driven by separate drive motors 60
This makes it possible to reciprocate on the rail 54 in the longitudinal direction. A water injection nozzle device 62 is provided at the bottom of the traveling frame structure 56. As this water injection nozzle device 62, a conventionally known rotary nozzle device or the like can be applied. However, in one preferred embodiment of the present invention, at least one pair of nozzles 64, 65 are arranged to face each other at an angle with respect to a horizontal plane, and each of these nozzles 64, 65 is arranged alternately on a net support shelf. The nozzle swinging mechanism 66 can be moved in a direction perpendicular to the longitudinal axis of the 20 pipes 18.

It is preferable to use needle valve type nozzles 64 and 65, which inject seawater pumped up by a high-pressure pump (not shown in the drawing) through a water distribution pipe 68 toward the net N on the net support shelf 20. let

A swinging mechanism 66 for alternately moving the nozzles 64 and 65 is mounted on a base 70 fixed to the bottom of the traveling frame structure 56 with a support arm 72 facing upward, and the upper ends of the nozzles 64 and 65 are attached to the support arm 72.
It is pivotally connected to the upper end of the body with a pin 74. As shown in FIG. 9, the pair of nozzles 64 and 65 are arranged at a distance from each other so as to face each other in the longitudinal direction of the pipe 18, and the directions of the water sprayed from the nozzles are mutually opposite to the other nozzle. It should face diagonally downward, approaching towards. Although the nozzles 64 and 65 are shown as one pair each, multiple pairs or multiple nozzles may be used as necessary.

As shown in FIGS. 6 and 7, the swing mechanism 66 of the nozzles 64 and 65 has a rotating shaft 76 attached to a bearing member provided on a base 70, and the eccentric directions of the shaft 76 are opposite to each other. The tip of an arm 82 extending from an outer ring 80 of one eccentric cam 78 is pivotally connected to one nozzle 64, and the outer ring 81 of the other eccentric cam 79 is The tip of an arm 83 extending from the nozzle 65 is pivotally connected to the other nozzle 65, and the nozzles 64 and 65 are swung in opposite directions by rotation of the rotating shaft 16.

[Operations and Effects of the Invention] The various rotating shafts and other drives of the fully automatic net washer 10 of the present invention are appropriately controlled by a known electronic control device and in accordance with a desired program sequence.

By the way, in the configuration as described in detail above, the fully automatic net washing machine 10 according to the present invention can be installed, for example, on the coast near a fish farm, or on the deck of a ship or a rig.

Therefore, a hoisting device 24 is placed on the edge of the underwater net N.
When the tip of the rope R wound around the rope winding drum 26 is attached and the winding device 24 is activated, the net N is lifted out of the water and approaches the device 10 of the present invention, and the front edge of the net N is pulled up from the water. When the net reaches the front end of the net support shelf 20, the water injection nozzle device 62 is activated.

As for the movement of the water injection nozzle device 62 in the longitudinal direction of the pipe 18 of the net support shelf 20, the number of reciprocations is appropriately selected in consideration of the nature of the deposits such as seaweed attached to the net N, as described above. At least one pair of nozzles 64 and 65 of the water injection nozzle device 62 swings in a direction perpendicular to the pipe 18 with respect to the net support shelf 20 when the device 62 is moved, so that the nozzles 64 and 65 are pulled up onto the net support shelf 20. A desired area of the mesh N can be washed with water.

Therefore, when the water injection nozzle device 62 is moved from one side to the other side in the direction perpendicular to the direction in which the net N is moved, that is, in the longitudinal direction of the pipe 18, the net N The washed area of the net N is further pulled up by the hoisting device 24 to perform the next washing operation, and the above operation is continued to transfer the front edge of the net N to the net reeling drum 32 of the reeling device 22. When the line has been hoisted all the way, the operation of the hoisting device 24 is stopped and the operation of the reeling device 22 is started.

The net reeling device 22 is also operated intermittently depending on the washing state of the net N, and is operated intermittently depending on the net reeling drum 32 and the catcher pin 36 that protrudes from the outer peripheral wall 42 of the catcher drum 34 and moves back. Therefore, the portion of the net N that has been washed with water hangs down to the outside of the reeling drum and accumulates on the floor or deck. Therefore, it will be convenient to move the washed net N to the drying area if a suitable transport trolley is placed at this location.

According to this invention, since the nozzles 64, 65, etc. for cleaning the fishing net N are arranged so as to be inclined and face each other with respect to the horizontal plane, the net N which is placed stationary on the net support shelf 20 is The deposits on the upper surface of the tube are removed by the action of high-pressure water directly injected from the nozzles 64 and 65. In addition, most of the injected high-pressure water passes through the mesh of the net N, collides with the pipe 18 of the net support shelf 20, and is reflected (Fig. 8), pushing up the cleaning area of the net N from the bottom surface, and Clean the N from the bottom as well. As a result, deposits on both sides of the net N can be completely removed.

As is obvious from the above description, according to the present invention, the rope R simply wound around the rope winding drum 26 of the winding device 24
The operator simply connects the front end of the net to the front edge of the net N to be washed with water, and the rest is automatically operated so that both sides of the net N are connected from the front edge to the rear edge. Moreover, since the entire width is washed with water, it provides a completely innovative means compared to conventional methods that required a large amount of manpower and time.

Note that the net reeling device 22, which constitutes a main part of the fully automatic net washing machine 10 of the present invention, can also be used independently as a device for pulling up the net from the water.

Although the configuration, operation, and effects of the fully automatic net washing machine according to the present invention have been described in detail above, the present invention can be implemented with various modifications within the technical content described in the claims.

[Brief explanation of the drawing]

Fig. 1 is a side view of the fully automatic net washing machine of the present invention, Fig. 2 is a partially cutaway front view, Fig. 3 is a partial plan cross-sectional view illustrating the net reeling device, and Fig. 4 is a partially cutaway front view. 3 is a sectional view taken along the line - in the direction of the arrow, FIG. Figure 7 and Figure 7 are side views explaining the configuration of the water washing device, Figure 8 is a schematic diagram explaining how water jetted from the nozzle collides with the pipe, and Figure 9 is a diagram explaining the relationship between the nozzle and the net. This is a schematic diagram. The main reference characters and numbers in the drawings are as follows. N... Net, R... Rope, 10... Fully automatic net washer, 12... Front support, 14... Rear support, 16
... Side frame, 18 ... Pipe, 20 ... Net support shelf,
22... Net reeling device, 24... Hoisting device,
26... Rope winding drum, 30... Rotating shaft,
32... Net reeling drum, 34... Catching drum, 36... Catching pin, 38...
Cam member, 50... Water washing device, 64, 65... Nozzle, 66... Nozzle swing mechanism.

Claims (1)

[Claims] 1. A net support shelf formed by arranging a plurality of pipes in parallel with each other at regular intervals and slanting from the bottom to the top in a direction perpendicular to the longitudinal axis of the pipes; and the net support. a net reeling device disposed adjacent to the top of the net support shelf for pulling the net from the leading edge to the trailing edge along the shelf; The operation of the net reeling device is stopped when a part of the net reaches the net reeling device in order to send the net to the net reeling device. A fully automatic screen washing machine comprising a nozzle device that injects high-pressure water into a predetermined area, and a nozzle device in which the nozzle devices are arranged to face each other at an angle with respect to a pair of horizontal planes, and a nozzle device in which the nozzles are alternately A nozzle swinging mechanism capable of moving the net supporting shelf in a direction perpendicular to the longitudinal axis of the pipe, and a plurality of net reeling devices arranged to rotate in alignment. It consists of a catch drum and a catch drum arranged between the drums, and a plurality of catch pins are arranged inside the catch drum in a radial direction from the center, and the 1. A fully automatic net washing machine, characterized in that the catcher pin is configured to slide and sequentially project outward from the catcher drum.