KR102722592B1 - Apparatus for Breaking to pieces of Waste Net - Google Patents

Abstract

The present invention relates to a device for shredding waste nets, and the device for shredding waste nets of the present invention comprises a cutting mechanism for continuously cutting waste nets from which materials are to be recovered, a separation mechanism for feeding waste net pieces cut by the cutting mechanism and transporting them downstream, and for separating the cut waste net pieces from each other according to their sizes during transport downstream, and a collection mechanism for separately collecting the separated waste net pieces, wherein the separation mechanism extends from an upstream where waste net pieces cut by the cutting mechanism are fed to a downstream where they are discharged from a collection mechanism, such that waste net pieces fed upstream are transported downstream by gravity, and a first transport panel having holes formed in a size through which waste net pieces of a certain size or less among waste net pieces can pass, a second transport panel extending parallel to the first transport panel and transporting waste net pieces passing through the holes of the first transport panel downstream by gravity and discharged to the collection mechanism, and a first transport panel and a second transport panel for facilitating transport of waste net pieces downstream by gravity. It includes a vibration applying means for applying vibration to the second transfer panel.

Description

{Apparatus for Breaking to pieces of Waste Net}

This invention relates to a device for crushing waste nets, and more particularly, to a device for crushing waste nets so that synthetic resin materials forming the nets can be recovered and recycled from the nets that have reached the end of their lifespan.

When fishing nets and other types of nets reach the end of their lifespan and are discarded, it is common to dispose of them by incineration.

However, due to issues such as environmental pollution and resource depletion, interest in regeneration and recycling is increasing in each industrial sector, and various regulations on disposal are being strengthened, so various methods of regenerating and using discarded fishing nets that have reached the end of their useful life are being sought.

Waste nets can be cut, shredded, and recovered in the form of short filaments for use as building materials, but their uses are very limited. Therefore, methods for recovering synthetic resin raw materials that make up the nets from waste nets are being widely studied and developed.

In order to recover synthetic resin raw materials from waste fishing nets, the waste fishing nets are first made into very small pieces for easy disposal, and then go through processes such as washing and thermal decomposition.

Meanwhile, nets used in longline fishing, etc., are several kilometers long and tens of meters wide, so cutting and crushing these nets into small sizes that can be washed or decomposed is very difficult.

Korean Patent Publication No. 10-1557416 (Document 1) discloses an invention entitled ‘Method for dismantling a net into rope pieces.’

In the invention of Document 1, a pressing and cutting process is performed on the mesh to dismantle the mesh and obtain filaments of the mesh material.

In the pressing process, the knotted portion of the mesh is pressed by a roller to break the knot, and in the cutting process, the mesh is cut by rotating blades arranged at regular intervals to obtain rope pieces of a certain length.

In the invention of this document 1, the process becomes complicated because it involves two processes of pressing and cutting. In particular, the net must be aligned with respect to the roller and the rotating blade for pressing and cutting, but it is not feasible to align a net having a width of several tens of meters and press and cut it.

Korean Patent Publication No. 10-2015-0107459 (Document 2) discloses an invention entitled “PET waste fishing net regeneration device and regeneration method.”

The invention of Document 2 proposes a method of collecting, cutting, and melting waste fishing nets made of PET material to recover the material of the fishing net in the form of chips, but does not disclose any specific method or device for cutting waste fishing nets.

Document 1: Republic of Korea Patent Publication No. 10-1557416 Document 2: Republic of Korea Patent Publication No. 10-2015-0107459

This invention aims to provide a device for shredding discarded nets, which enables the material of discarded nets to be recycled by cutting discarded nets into a size easy for recycling.

In particular, this invention enables cutting of waste nets and classifying and collecting pieces of the cut waste nets through a relatively simple process, and provides a shredding device capable of cutting, classifying and collecting waste nets regardless of their size or specifications.

Specifically, the invention seeks to provide a shredding device configured to cut waste nets and classify the cut waste net pieces into sizes required for subsequent processes necessary for recovering the waste nets.

The problem that this invention seeks to solve as described above is achieved by this invention relating to a device for crushing waste nets.

The shredding device of this invention is,

It comprises a cutting device that continuously cuts waste nets from which materials are to be recovered, a separation device that feeds waste net pieces cut by the cutting device and transports them downstream, and separates the cut waste net pieces from each other according to their sizes during transport downstream, and a collection device that collects the separated waste net pieces separately from each other.

The separation mechanism includes a first transfer panel extending from an upstream portion where pieces of waste net cut from a cutting mechanism are fed to a downstream portion where they are discharged from a collection mechanism, so that pieces of waste net fed upstream are fed downstream by gravity and holes having a size through which pieces of waste net smaller than a certain size can pass among the pieces of waste net are formed, a second transfer panel extending parallel to the first transfer panel and allowing pieces of waste net passing through the holes of the first transfer panel to be fed downstream by gravity and discharged to the collection mechanism, and a vibration applying means for applying vibration to the first transfer panel and the second transfer panel to promote the downstream transport of the pieces of waste net from the first transfer panel and the second transfer panel by gravity.

The waste net fed into the crushing device according to this invention having such a configuration is continuously cut by the cutting mechanism to form waste net pieces, and the waste net pieces are fed into the separation mechanism.

The pieces of waste net cut from the cutting device can be of various sizes.

In particular, most waste nets are broken down into pieces of fiber bundles with a certain range of lengths by cutting, but waste nets may be made up of fibers that have many cracks or splits due to aging effects, etc. as their lifespan ends, and thus waste net pieces in the form of powder or very small filaments may be formed during the cutting process.

The cut pieces of waste nets are washed to remove foreign substances and decompose the polymer-state fiber materials to recover the raw materials that make up the waste nets. However, the efficiency and process of the raw material recovery process through the washing process or decomposition can vary greatly depending on the size of the pieces of waste nets.

Therefore, in order to proceed with the process efficiently, it is desirable that the pieces of waste net to be processed are distributed within a certain size range.

In the shredding device according to this invention, the cut pieces of waste net are classified into a certain size range by a separation mechanism, and such classification is achieved by the pieces of waste net having a small size range falling through holes formed in the first conveying panel to the second conveying panel during the process in which the pieces of waste net pass over the first conveying panel by gravity and vibration.

The pieces of waste net in the large size range remain on the first transfer panel and are transported downstream, and the pieces of waste net in the small size range fall to the second transfer panel and are transported downstream.

In this way, in the shredding device of this invention, pieces of waste nets are transported by gravity and vibration, and in this process, the pieces of waste nets are classified by size range.

Therefore, the shredding device of this invention cuts and classifies waste nets without error or reduction in efficiency through a very simple process and device.

As an embodiment of the shredding device of this invention, in the shredding device of this invention, the first transport panel and the second transport panel forming the separation mechanism may be configured to extend obliquely from the cutting mechanism toward the transport mechanism with respect to the horizontal plane, and the second transport panel may be placed below the first transport panel.

In this way, the transport and classification of waste net fragments by gravity and vibration can be achieved with a very simple configuration.

As an additional feature of another aspect of this invention, in the shredding device of this invention,

The cutting mechanism comprises a transport means for continuously pulling waste nets fed from upstream and transporting them downstream, a rotary cutting means having a plurality of cutting blades, each of which extends in a direction perpendicular to the transport direction of the waste nets and is spaced apart from each other in the circumferential direction at positions with the same diameter, and which rotates around a rotation axis parallel to the extension direction of the cutting blades, and a support blade arranged in the transport path of the waste nets and cutting the waste nets together with the cutting blades of the rotary transfer means.

The rotary cutting means and the support blade are arranged downstream of the transport means to continuously cut the waste net transported by the transport means, and the cut waste net pieces are discharged to the first transport panel.

As the rotary cutting means rotates, the tip of the cutting blade can be configured to contact the tip of the support blade, thereby cutting a portion of the waste net located between the cutting blade and the tip of the support blade.

According to a configuration having an additional feature of the present invention, a cutting mechanism for cutting waste nets is provided with a plurality of cutting blades attached to a rotating body, and while rotating, the cutting mechanism continuously cuts waste nets together with the supporting blades.

Since multiple cutting blades sequentially contact the support blades to cut the waste net, the waste net is cut continuously. As a result, even in the case of waste nets such as long fishing nets, cutting operation can be performed without interruption over the entire length of the waste net.

In particular, the cutting length of the waste net can be easily controlled by controlling the rotation speed of the rotating body equipped with the cutting blade while feeding the waste net into the cutting device at a constant speed.

As an embodiment of the rotary cutting means of such cutting mechanism,

The rotary cutting means further includes a pair of rotary plates formed in a disk shape and spaced apart from each other in the longitudinal direction of the rotary axis and coupled to the rotary axis and being rotary-driven by the rotary axis, and a first driving motor for rotary-driving the rotary axis.

A plurality of cutting blades may be configured to be respectively coupled to the outer periphery of the rotating plate and arranged to extend between the rotating plates.

In a rotation transmission means having the above characteristics,

The tip of each cutting blade is in contact with the tip of the support blade to cut the waste net, and the tip of the cutting blade is spaced from the center in the opposite direction of the rotational direction of the cutter with respect to the longitudinal direction of the rotational axis, so that both ends of the tip of the cutting blade are in contact with the tip of the support blade before the center to cut the waste net.

In this configuration, the tip of the cutting blade does not contact the tip of the support blade simultaneously, but rather the tips of the cutting blade and the support blade contact each other sequentially from the ends on both sides of the length of the cutting blade to the center, so that the entire length of the cutting blade does not contact the waste net, but rather contacts it from the edge to cut it.

Accordingly, the jamming phenomenon, in which waste netting becomes caught between the cutting blade and the support blade and is not cut, does not occur, and the waste netting is cut smoothly.

Another feature of the cutting mechanism of this invention is that in the crushing device of this invention,

The transport means includes a pair of rollers that have a rotation axis parallel to each other and a second drive motor that rotates the rollers, and the waste net is inserted between the pair of rollers and transported to the position of the rotating cutting means and the cutting block.

It can be configured such that one of a pair of rollers is pressed toward the other roller, so that the waste net inserted between the rollers is transported downstream by frictional force with the rollers.

A pair of rollers transports the waste net downstream by sandwiching it between them. Accordingly, a pair of rollers have the function of pulling the waste net to be processed to the cutting mechanism and feeding it to the rotating conveying means.

In this configuration, the cutting length of the waste net can also be adjusted by controlling the rotation speed of a pair of rollers.

FIGS. 1 and 2 are perspective views of a shredding device according to one embodiment of the present invention viewed from different sides.
FIGS. 3 and 4 are a front view and a plan view, respectively, of a shredding device according to one embodiment of the present invention.
Figure 5 is a longitudinal cross-sectional view of a separation mechanism portion along line BB of Figure 4.
FIG. 6 is a perspective view showing a portion of a cutting mechanism in a shredding device according to one embodiment of the present invention.
Fig. 7 is a cross-sectional view of a cutting mechanism portion along line CC of Fig. 4.
Figure 8 is a front view seen from the direction of arrow D in Figure 5.

Hereinafter, with reference to the drawings, the configuration and operation of a shredding device according to one embodiment of the present invention will be described as specific details for carrying out the present invention.

In the following description and throughout this specification, the terms “upstream” and “downstream”, unless otherwise defined, refer to the direction in which the waste netting is transported as it is cut and separated in the shredding device.

First, the overall configuration of the shredding device of this embodiment will be described with reference to FIGS. 1 to 4.

The shredding device of this embodiment is composed of a cutting mechanism (100) that continuously cuts waste nets (1) from which materials are to be recovered, a separation mechanism (200) that feeds waste net pieces (1, 2) cut by the cutting mechanism and transports them downstream and allows the cut waste net pieces to be separated from each other according to size during transport downstream, frames (11, 12) on which the cutting mechanism and the separation mechanism are respectively mounted, and a collector (300) in which the separated waste net pieces are collected separately from each other.

In addition, a control module and display are provided to power the device, control its operation, and monitor its operation, but are not shown in the drawing.

A cutting mechanism (100) is placed on the frame (11) on the upstream side, a separating mechanism (200) is placed on the frame (12) on the downstream side, and a collector (300) is provided on the ground downstream of the downstream frame (12).

Meanwhile, the frame (11) of the upper stream (11) is intended to match the height of the cutting mechanism (100) with that of the separating mechanism (200), and the height can be adjusted by placing the cutting mechanism (100) at a high position or by configuring the lower frame (110) of the cutting mechanism to be long.

The cutting device (100) is sequentially arranged from upstream to downstream, including a loading plate (130) on which waste nets (1) to be cut are placed, a pair of rollers (181, 182) that pull the waste nets placed on the loading plate (130), a cutter (170) and a support blade (175) that cut the waste nets transported downstream by the rollers, and a guide plate (121) that guides the waste net pieces (2, 3) cut by the cutter (17) to be placed into the separation device (200).

Next, as a separation mechanism (200), a frame (211, 212, 213) on which a filter plate (220 in FIG. 3) is installed to classify waste net pieces (2, 3) fed from a cutting mechanism (100) according to size is installed on the frame (12) via springs (240) provided at four locations.

In addition, the lower frame (213) of the separation mechanism has a side formed into a triangle and is placed at the lower part of the middle frame (212), and a vibration motor (250) is installed on this side.

The vibration motor (250) applies vibration to the separation mechanism (200) by driving, and the waste net pieces (2, 3) fed into the separation mechanism by this vibration move downstream by gravity and fall to the lower side of the filter plate through the hole (221) provided in the filter plate (220).

The vibration applied by the vibration motor (250) is not transmitted to the frame (12) by the spring (240), but only vibrates the separation mechanism (200).

A collector (300) placed on the ground downstream of a separating device (200) is provided with a space (310, 320) in which pieces of waste net (2, 3 in FIG. 3) that fall after being separated by size from the separating device (200) are each stored.

These spaces (310, 320) can store discarded net pieces directly, but bags, etc. can be placed in these spaces so that discarded nets collected in the bags can be transported to a subsequent recycling process together with the bags.

Next, with further reference to Fig. 5, the specific configuration of the separation mechanism (200) is described.

The separation mechanism (200) is provided with an upper frame (211) having a filter plate (220) positioned on the inside and a middle frame (212) having a support plate (230) positioned on the inside. The upper and middle frames (211, 212) extend horizontally to the ground from the downstream of the cutting mechanism (100) to the location of the collector (300).

On the inner side in the width direction of the upper frame (211), a hole (221) is formed over the entire area of the filter plate (220) to allow small-sized pieces of waste net (3) to pass through, and is arranged so as to slope downward from upstream to downstream.

Additionally, on the lower side of the filter plate (220), a support plate (230) is placed on the middle frame (212) at a certain distance above and below the filter plate in parallel.

The support plate (230) is formed as a flat panel so that small-sized pieces of waste net (3) passing through the hole (221) of the filter plate (220) are transported downstream, and the pieces of waste net (3) placed here are transported downstream by vibration and gravity.

The middle frame (212) and the support plate (230) are formed to have a shorter length than the upper frame (211) and the filter plate (220), and the upper frame (211) and the filter plate (220) protrude further downstream than the middle frame (212) and the support plate (230).

Accordingly, the large pieces of waste net (2) transported downstream from the filter plate (220) fall to the collector (300) at a different location from the small pieces of waste net (3) transported downstream from the support plate (230) and are received in a different space.

Next, the configuration and operation of the cutting mechanism will be described with further reference to FIGS. 6 to 8.

On top of the frame (11), upper and lower frames (110, 120) are provided, on which a cutting device (100) is installed. On top of the lower frame (110), an upper frame (120) is provided, on which a loading plate (130) is provided, on which waste nets to be fed into the cutter (170) are placed.

The loading plate (130) is made of a flat panel and extends in the direction of transport of the waste net. Side plates (131) are placed on both sides to guide the waste net so that it does not come off laterally. A guide plate (132) having a wide entrance and a narrow exit is attached to the upstream side of the loading plate (130) to facilitate the loading of the waste net.

Downstream of the loading plate (130), upper and lower rollers (181, 182) that pull the waste net (1) and feed it into the cutter (170) are placed above and below each other and their rotation axes are arranged parallel.

The lower roller (182) has a bearing (184) that rotatably supports the rotation shaft and is connected to the upper frame (120), and the upper roller is connected to a rotation bar (191).

A pressure mechanism frame (190) extending in the transport direction of the waste net is attached to the side plate (131), and a rotation bar (191) is rotatably connected to a hinge (192) provided on the pressure mechanism frame (190).

A bearing (183) of an upper roller (181) is coupled to the downstream end of the pivot bar (191), so that the upper roller (181) is coupled to the pivot bar (191) as a whole and is capable of rotating about a hinge (192).

A coil spring (193) is arranged between the rotation bar (191) and the pressurizing mechanism frame (190) to press the rotation bar (191) downward. The rotation bar (191) is pressed downward by the coil spring (193), and the upper roller (181) is pressed downward.

Accordingly, the upper roller (181) is pressed toward the lower roller (182) which is installed in a fixed position.

A second drive motor (151) is installed in the upper frame (120), and the rotational power of the second drive motor is transmitted to the lower roller (182) through a chain (153). A driven gear (185) and a driving gear (186) that are interlocked with each other are installed at one end of the upper and lower rollers (181, 182).

Accordingly, when the second drive motor (151) is driven to rotate, its rotational power is transmitted to the upper and lower rollers (181, 182) through the chain (153) and the driven and driven gears (185, 186), causing them to rotate in opposite directions.

When the shredding device of this embodiment is initially operated, when one end of the waste net is placed between the upper and lower rollers (181, 182) through the loading plate (130), the upper roller (181) is pressed against the lower roller (182), so that the waste net (1) placed between them is caught between the upper and lower rollers (181, 182), and the waste net (1) is continuously transported downstream according to the rotational drive of the upper and lower rollers (181, 182).

A support blade (175) is placed downstream of the upper and lower rollers (181, 182), and a cutter (170) is provided downstream of the support blade (175).

The waste net pulled by the upper and lower rollers (181, 182) passes through the loading plate (130) and is sent downstream of the upper and lower rollers (181, 182) and passes over the support blade (175).

On both sides of the support blade (175) in the width direction, guide plates (175) are provided to guide the waste net (1) so that it does not deviate laterally with respect to the direction of travel. The guide plates (175) are configured to slope inward in the width direction as they go downstream, so that the waste net (1) faces the center of the cutter (170).

The cutter (170) is formed in an overall cylindrical shape and is rotatably mounted on a cutter mounting frame (160) that mounts the cutter.

The cutter mounting frame (160) is formed as a square frame and is placed on the upper surface of the lower frame (110), and one is placed on each of the width sides of the cutter (170).

The cutter (170) is arranged so as to be rotatable, with its rotational axis (173) mounted on a cutter mounting frame (160) by means of a bearing, and a chain pulley is provided on the rotational axis (173). The cutter (170) rotates by receiving rotational power from a first drive motor (141) provided on a lower frame (110) through a chain (143).

The cutter (170) has two rotating plates (171) provided in the longitudinal direction of the rotation axis, and three cutting blades (172) are arranged at equal intervals on the circumference of the rotating plate (171).

Referring to FIG. 5, the cutter (170) rotates in a direction from the upper side to the lower side, and the cutter (170) and the support blade (175) are arranged so that the tip of the cutter blade (172) comes into contact with the tip of the support blade (175) located on the upstream side.

Accordingly, the waste net (1) passing downstream on the upper surface of the support blade (175) is cut between the cutting blade (172) and the tip of the support blade (175).

Figure 8 is a drawing of the cutting blade (172) and the support blade (175) as viewed from the direction of arrow D, which is the diameter direction of the cutter (170).

The cutting blade (172) has a curvature such that the center of the longitudinal direction of the cutting edge (174) is concave in the opposite direction of the rotational direction.

Accordingly, as the cutter (170) rotates, the cutting edge (174) of the cutting blade (172) first contacts the support blade (175) on both sides in the longitudinal direction, and then the center side contacts the support blade (175) last.

Eventually, the cutting edge (174) of the cutting blade sequentially comes into contact with the support blade (175) from the edge toward the center over time to cut the waste net (1). Accordingly, the cutting blade (172) and the support blade (175) do not come into contact with the waste net (1) simultaneously along the entire length, but rather come into contact with the waste net (1) sequentially from the periphery toward the center to cut it.

In this way, the cutting edge (174), which is the tip of the cutting blade (172), is formed in an arc or inclined shape so that the longitudinal center side comes into contact with the support blade (175) later.

Due to this action, the tip of the cutting blade (172) and the supporting blade (175) come into contact with the waste net (1) simultaneously over their entire lengths, so that cutting does not occur and the waste net (1) becomes caught between the cutting blade (172) and the supporting blade (175), which reduces the possibility of a jamming phenomenon.

The three cutting blades (172) provided on the cutter (170) sequentially pass through the support blade (175) and cut the waste net (1) passing over the support blade (175) at regular intervals.

If the cutter (170) rotates faster or the upper and lower rollers (181, 182) rotate slower, the cutting length of the waste net (1) becomes shorter, and conversely, if the cutter (170) rotates slower or the upper and lower rollers (181, 182) rotate faster, the cutting length of the waste net (1) becomes longer.

Therefore, the cutting length of the waste net (1) can be adjusted by controlling the rotation speed of the first and second driving motors (141, 151) that rotate the cutter (170) and the upper and lower rollers (181, 182).

At the bottom of the cutter (170), a transfer plate (121) is provided on which cut pieces of waste net (2, 3) are placed and transferred downstream by gravity.

As shown in Fig. 1, the transfer plate (121) is extended at an angle from the lower portion of the cutter (170) to the upstream side of the strainer plate (220) of the separation mechanism (200), so that the waste net pieces (2, 3) cut by the cutter (170) and dropped are thrown upstream of the strainer plate (220) of the separation mechanism.

The overall operation of the shredding device of this embodiment having the above configuration and operation is described.

Prepare a fishing net that has reached the end of its life as a waste net. The fishing net may have a width of several tens of meters, but considering the width and capacity of the cutter (170) that cuts the waste net (1) in the shredding device of this embodiment, it may be dismantled or cut to have a width of several meters or several tens of centimeters and then fed onto the loading plate (130) of the cutting device.

Since the shredding device of this embodiment can continuously cut and process waste nets (1), the length of the waste nets fed in is not limited, and they can be fed in as is without being cut into unit lengths.

The waste net (1) is placed on the loading plate (130) and the device of this embodiment is started to operate. By such starting of operation, the first and second driving motors (141, 142) of the cutting mechanism are driven to rotate and the vibration motor (250) of the separation mechanism is operated to apply vibration to the separation mechanism (200).

When the waste net (1) is pushed and its tip is placed on the upper and lower rollers (181, 182), the waste net (1) approaches the cutter (170) through the support blade (175) by the rotation of the upper and lower rollers.

The rotating cutter (170) sequentially approaches and passes through the support blade (175) and cuts the portion of the waste net (1) located between the cutting edge (174) of the cutting blade and the tip of the support blade by contacting them. As the cutter (170) rotates, the three cutting blades (172) sequentially contact the support blade (175) and the waste net (1) is continuously cut into unit lengths.

The pieces (2, 3) of the cut waste net fall to the bottom of the cutter (170) and slide down the transfer plate (121) and are fed onto the filter plate (220) of the separation device (200).

Since the filter plate (220) is inclined downward toward the downstream and vibrates by the vibration motor (250), the waste net pieces (2, 3) move toward the downstream. Among the waste net pieces, the waste net pieces (3) smaller in size than the hole (221) of the filter plate (220) fall through the hole to the lower support plate (230).

The support plate (230) is also inclined downward toward the downstream and vibrates by the vibration motor (250), so that small-sized pieces of waste net (3) are also transported downstream.

Pieces of waste net (2, 3) fall from the downstream ends of the filter plate (220) and the support plate (230), and each is received in the storage space (310, 320) of the collector (300).

Meanwhile, a bag or the like that accommodates pieces of waste nets (2, 3) can be placed in the storage space (310, 320), and when the bag is full of waste net pieces (2, 3), the bag is separated from the storage space (310, 320) and transported to a process for regeneration.

The configuration and operation of a shredding device for waste nets according to one embodiment of the present invention have been described above.

The pieces of waste net recovered from the crushing device of the embodiment of this invention are transferred to a washing process to remove tar or other foreign substances, and after the foreign substances are removed, they are turned into raw material for synthetic resin fibers forming the waste net through thermal decomposition or the like.

Such synthetic resin raw materials can be prepared in the form of powder or pellets, and these raw materials can be put into a polymerization process again to form materials such as waste nets. Such materials can be regenerated into nets through a process of forming fibers that become net materials through a fiber spinning process and weaving the nets.

This invention is not limited to the configuration of the embodiments described above, and various modifications, variations, and additions of configurations are possible within the scope described in the claims, and such modifications, variations, and additions of configurations fall within the scope of this invention.

1 waste net 11, 12 frame 100 cutting device
130 Loading plate 170 Cutter 172 Cutting blade
175 Supporting blade 181 Upper roller 182 Lower roller
200 Separation mechanism 220 Strainer plate 230 Support plate
240 spring 250 vibration motor 300 collection mechanism

Claims (6)

As a device for crushing waste nets,
A cutting device that continuously cuts waste nets from which materials are to be recovered.
A separation device that separates pieces of waste net cut from a cutting device into pieces that are fed and transported downstream, and separates the pieces of waste net cut from each other according to their sizes during transport downstream, and
A collection device in which separated pieces of waste net are collected separately from each other.
Including,
The separation device is a first transfer panel that extends from the upstream where the waste net pieces cut by the cutting device are fed to the downstream where they are discharged to the collection device, so that the waste net pieces fed upstream are fed downstream by gravity, and a hole is formed in a size through which waste net pieces of a certain size or smaller can pass among the waste net pieces.
A second transfer panel extending parallel to the first transfer panel and allowing pieces of waste net passing through the holes of the first transfer panel to be transferred downstream by gravity and discharged to a collection device, and
A vibration applying means for applying vibration to the first and second transfer panels to facilitate the transport of waste net pieces downstream by gravity from the first and second transfer panels.
Including,
The cutting mechanism comprises a transport means for continuously pulling waste nets fed from upstream and transporting them downstream, a rotary cutting means having a plurality of cutting blades, each of which extends in a direction perpendicular to the transport direction of the waste nets and is spaced apart from each other in the circumferential direction at positions of the same diameter, and which rotates around a rotation axis parallel to the extension direction of the cutting blades, and a support blade that is arranged on the transport path of the waste nets and cuts the waste nets together with the cutting blades of the rotary transfer means.
The rotary cutting means and the support blade are arranged downstream of the transport means to continuously cut the waste net transported by the transport means, and the cut waste net pieces are discharged to the first transport panel.
As the rotary cutting means rotates, the tip of the cutting blade comes into contact with the tip of the support blade, thereby cutting the portion of the waste net that lies between the tip of the cutting blade and the support blade.
A device for shredding waste nets, wherein the leading edge of each cutting blade is in contact with the leading edge of the support blade to cut the waste net, and the leading edges of the cutting blades are spaced apart from the center in the opposite direction of the rotational direction of the cutter with respect to the longitudinal direction of the rotational axis, so that both ends of the cutting blade leading edge are configured to contact the leading edge of the support blade ahead of the center to cut the waste net. In claim 1,
A shredding device for waste nets, wherein the first transfer panel and the second transfer panel extend obliquely from the cutting mechanism toward the transfer mechanism with respect to the horizontal plane, and the second transfer panel is placed below the first transfer panel. delete In claim 1,
The rotary cutting means further includes a pair of rotary plates formed in a disk shape and spaced apart from each other in the longitudinal direction of the rotary axis and coupled to the rotary axis and being rotary-driven by the rotary axis, and a first driving motor for rotary-driving the rotary axis.
A device for shredding waste nets, wherein a plurality of cutting blades are respectively connected to the outer periphery of the rotating plate and arranged to extend between the rotating plates. delete In claim 1,
The transport means includes a pair of rollers that have a rotation axis parallel to each other and rotate, and a second drive motor that rotates the rollers, and the waste net is inserted between the pair of rollers and transported to the position of the rotating cutting means and the cutting block.
A device for crushing waste nets, wherein one of a pair of rollers is pressed toward the other roller, and waste nets inserted between the rollers are transported downstream by frictional force with the rollers.