Waste fishing net crusher

Abstract

The present invention relates to a waste fishing net cutter with a new structure capable of effectively cutting waste fishing nets into short pieces. The waste fishing net cutter according to the present invention comprises a conveying conveyor device (20) that extends in the forward and backward directions and conveys the waste fishing net (1) to the rear, a cutting unit (A) provided at the rear of the conveying conveyor device (20) and cuts the waste fishing net (1) supplied by the conveying conveyor device (20), and a pressure roller (50) provided at the upper side of the conveying conveyor device (20) and pressurizes the waste fishing net (1) supplied to the cutting unit (A) by the conveying conveyor device (20), thereby preventing the waste fishing net (1) supplied by the conveying conveyor device (20) from being pulled to the rear by the cutting member (33) of the cutting unit (A) by being pressed by the pressure roller (50). Therefore, there is an advantage in that the discarded fishing net (1) is prevented from being pulled backward by the cutting member (33) and thus the discarded fishing net (1) is not cut accurately, and the discarded fishing net (1) can be cut accurately and neatly.

Description

Technology Field

[0001] The present invention relates to a waste fishing net cutter with a new structure capable of effectively cutting waste fishing nets into short pieces. Background Technology

[0002] Generally, it is common practice to discard fishing nets used on fishing vessels after a certain period of use and replace them with new ones.

[0003] However, these fishing nets are made of high-strength synthetic resin materials and are very long and heavy, so if they are discarded as is, they cause environmental pollution.

[0004] Therefore, recently, various recycling methods have been developed and are being used, such as cutting these discarded fishing nets into short pieces of a few centimeters and using them as reinforcing materials for concrete structures.

[0005] As shown in numerous prior art documents including registered patent No. 10-2480981, a cutting device for cutting waste fishing nets is equipped with a pair of cutting members joined so that their circumferential surfaces interlock with each other, and when a waste fishing net is fed between the cutting members, the waste fishing net is cut into short pieces by the cutting members to cut the waste fishing net.

[0006] However, in this method, problems occurred such as the fishing nets not being completely cut and being discharged stuck together, a large amount of fishing nets being fed through the cutting members at once and not being cut short enough, or the fishing nets getting caught on the cutting members.

[0007] Therefore, a new method to solve these problems became necessary. The problem to be solved

[0008] The present invention aims to solve the above-mentioned problems by providing a waste fishing net cutter with a new structure capable of effectively cutting waste fishing nets into short pieces. means of solving the problem

[0009] The present invention for achieving the above-mentioned purpose comprises a conveying conveyor device (20) that extends in the front-rear direction and conveys a waste fishing net (1) to the rear, a cutting unit (A) provided at the rear of the conveying conveyor device (20) and cuts the waste fishing net (1) supplied by the conveying conveyor device (20), and a pressure roller (50) provided at the upper side of the conveying conveyor device (20) and pressurizes the waste fishing net (1) supplied to the cutting unit (A) by the conveying conveyor device (20). The cutting unit (A) comprises a main body (31) provided at the rear of the conveying conveyor device (20), a cutting block (32) provided to extend laterally from the main body (31) and support the lower side of the waste fishing net (1) conveyed to the rear by the conveying conveyor device (20), and a plurality of cutting blades (33a) provided on the circumference surface extending laterally and on the main body (31). A waste fishing net cutter is provided, characterized by including a cutting member (33) that is rotatably coupled and, when rotated by a driving motor (34), the cutting blade (33a) engages with a cutting block (32) to cut the waste fishing net (1).

[0010] According to another feature of the present invention, a waste fishing net cutter is provided, characterized in that a driving motor (52) is connected to the pressure roller (50), and the driving motor (34) rotates the pressure roller (50) so that its lower side rotates backward, thereby controlling the speed at which the waste fishing net (1) transported by the conveyor device (20) is supplied to the cutting member (33).

[0011] According to another feature of the present invention, a waste fishing net cutter is provided, further comprising a primary cutting unit (10) provided in front of the conveying conveyor device (20) to primarily cut the waste fishing net (1) and supply it to the conveying conveyor device (20).

[0012] According to another feature of the present invention, a waste fishing net cutter is provided, characterized in that the pressure roller (50) is vertically coupled to the main body (31) and is pressed downward by an upper spring (38), so that the pressure roller (50) is appropriately raised and lowered according to the thickness of the waste fishing net (1) being transported backward by the conveyor device (20) to press the waste fishing net (1) with an appropriate pressure.

[0013] According to another feature of the present invention, a rotation axis (51) extending laterally is provided on both sides of the pressure roller (50), a lifting block (37) coupled to the main body (31) so as to be vertically movable, an upper spring (38) connected to the lifting block (37) to press the lifting block (37) downward, a support block (41) coupled to the inner surface of the lifting block (37) so as to be slidable in the front-rear direction and to which the rotation axis (51) of the pressure roller (50) is rotatably coupled, a rear spring (42) connected to the support block (41) to press the support block (41) forward, a limit switch (43) provided on the lifting block (37) to detect when the support block (41) slides backward to a predetermined position, and a conveyor device (20) receiving a signal from the limit switch (43) and A waste fishing net cutter is provided, further comprising a control means (44) for controlling the speed of a drive motor (52), wherein the control means (44) controls the speed of the conveying conveyor device (20) and the drive motor (52) to a first speed so that the waste fishing net (1) is supplied between the cutting block (32) and the cutting member (33) at the first speed, and when the pressure roller (50) is pulled backward and the support block (41) slides backward, this is detected through the limit switch (43), and the speed of the conveying conveyor device (20) and the drive motor (52) is adjusted to a second speed set faster than the first speed described above, thereby increasing the speed at which the waste fishing net (1) is supplied between the cutting block (32) and the cutting member (33). Effects of the invention

[0014] The waste fishing net cutter according to the present invention comprises a conveying conveyor device (20) that extends in the forward and backward directions and conveys the waste fishing net (1) to the rear, a cutting unit (A) provided at the rear of the conveying conveyor device (20) and cuts the waste fishing net (1) supplied by the conveying conveyor device (20), and a pressure roller (50) provided at the upper side of the conveying conveyor device (20) and pressurizes the waste fishing net (1) supplied to the cutting unit (A) by the conveying conveyor device (20), thereby preventing the waste fishing net (1) supplied by the conveying conveyor device (20) from being pulled to the rear by the cutting member (33) of the cutting unit (A) by being pressed by the pressure roller (50).

[0015] Therefore, there is an advantage in that the discarded fishing net (1) is prevented from being pulled backward by the cutting member (33) and thus the discarded fishing net (1) is not cut accurately, and the discarded fishing net (1) can be cut accurately and neatly. Brief explanation of the drawing

[0016] FIG. 1 is a side cross-sectional view illustrating a waste fishing net cutter according to the present invention, FIG. 2 is a cross-sectional view showing the cross-section along line BB of FIG. 1, FIG. 3 is an enlarged cross-sectional view of the main part of FIG. 2. FIG. 4 is a side cross-sectional view illustrating a second embodiment of a waste fishing net cutter according to the present invention, FIG. 5 is a cross-sectional view showing the CC line cross-section of FIG. 4, FIG. 6 is an enlarged cross-sectional view of the main part of FIG. 5. FIG. 7 is a plan cross-sectional view showing the cross-section along line DD of FIG. 5. FIG. 8 is an enlarged cross-sectional view of the main part of FIG. 7. FIG. 9 is a block diagram of a second embodiment of a waste fishing net cutter according to the present invention, FIG. 10 is a cross-sectional view illustrating the operation of a second embodiment of a waste fishing net cutter according to the present invention. Specific details for implementing the invention

[0017] The present invention will be described in detail below with reference to the attached exemplary drawings.

[0018] FIGS. 1 to 3 illustrate a waste fishing net cutter according to the present invention, comprising a primary cutting unit (10) for primary cutting of a fishing net, a conveying conveyor device (20) provided at the rear of the primary cutting unit (10) for conveying the waste fishing net (1) cut by the primary cutting unit (10) to the rear, a cutting unit (A) provided at the rear of the conveying conveyor device (20) for cutting the waste fishing net (1) supplied by the conveying conveyor device (20), and a pressure roller (50) provided at the upper side of the conveying conveyor device (20) for pressurizing the waste fishing net (1) supplied to the cutting unit (A) by the conveying conveyor device (20).

[0019] The above primary cutting unit (10) is located at the rear of a supply conveyor device (11) that is provided to extend in the front-rear direction, and is composed of a support (12) that is provided to extend in the up-down direction at the rear of the supply conveyor device (11), a lower blade (13) provided on the support (12), an upper blade (14) provided on the support (12) to be located above the lower blade (13), and a cylinder mechanism (15) connected to the upper blade (14) to raise and lower the upper blade (14).

[0020] Accordingly, when the upper blade (14) is lowered by the cylinder mechanism (15) while the waste fishing net (1) is being supplied using the supply conveyor, the upper blade (14) engages with the lower blade (13) to cut the fishing net, and the cut fishing net is discharged to the upper surface of the transfer conveyor device (20) provided at the rear.

[0021] At this time, it is preferable that the first cutting unit (10) cut the waste fishing net (1) to a length of approximately 8 to 10 m.

[0022] The above conveyor device (20) is configured to have a pair of rollers (21) spaced apart in the front and rear directions and a belt (22) coupled to the circumference of the rollers (21), so as to transport a waste fishing net (1) placed on the upper surface of the belt (22) to the rear and supply it to the cutting unit (A).

[0023] The above cutting unit (A) is composed of a main body (31) provided at the rear of the conveyor device (20), a cutting block (32) provided to extend laterally from the main body (31) and supporting the lower side of the waste fishing net (1) conveyed to the rear by the conveyor device (20), and a cutting member (33) that extends laterally and is provided with a plurality of cutting blades (33a) on its circumference surface, is rotatably coupled to the main body (31), and when rotated by a driving motor (34), the cutting blades (33a) engage with the cutting block (32) to cut the waste fishing net (1).

[0024] The above main body (31) is configured in the shape of a rectangular tube with a supply port (31a) and an discharge port (31b) formed on the upper front side and the lower rear side, respectively, and the rear end of the transfer conveyor device (20) extends into the interior of the main body (31) through the supply port (31a).

[0025] The above cutting block (32) is configured in the shape of a rectangular block of metal material extended laterally and is fixed inside the main body (31) so as to be located at the rear lower side of the transfer conveyor device (20).

[0026] The above cutting member (33) is configured as a cylindrical shape extending laterally, and a plurality of cutting blades (33a) are formed on the circumferential surface at a certain angle apart. On both sides, a rotation axis (33b) extending laterally is provided, and the rotation axis (33b) is rotatably coupled to both sides of the main body (31).

[0027] At this time, when the cutting member (33) is rotated, the cutting blade (33a) is positioned to engage with the rear upper corner portion of the cutting block (32).

[0028] At this time, a discharge conveyor device (35) extending rearward through the discharge port (31b) is provided on the lower side of the cutting member (33), and a collection container (36) is provided at the rear of the discharge conveyor device (35).

[0029] The above pressure roller (50) is configured in a cylindrical shape extending laterally and is equipped with a rotating shaft (51) on both sides that is vertically movable to the main body (31). It is rotated by a driving motor (52) connected to the rotating shaft (51) and presses the upper surface of the waste fishing net (1) that is moved backward by the conveyor device (20) downward, thereby preventing the waste fishing net (1) from being pulled backward by the cutting member (33) when the waste fishing net (1) is cut by the cutting member (33).

[0030] At this time, the drive motor (52) causes the lower circumference of the pressure roller (50) to rotate backward at the same speed as the speed at which the waste fishing net (1) is transported by the transport conveyor device (20).

[0031] At this time, the pressure roller (50) is movably coupled to the main body (31) and is pressed downward by an upper spring (38), so that the pressure roller (50) is appropriately raised and lowered according to the thickness of the waste fishing net (1) being transported backward by the conveyor device (20), as shown in FIG. 3, to press the waste fishing net (1) with an appropriate pressure.

[0032] To this end, vertical slots (31c) extending in the vertical direction are formed on both sides of the main body (31), and a lifting block (37) is connected to the vertical slots (31c) so as to be able to move up and down.

[0033] And, the rotation axis (51) of the pressure roller (50) is coupled to rotatably penetrate the lifting block (37) in a lateral direction, and the drive motor (52) is coupled to the outer surface of the lifting block (37) and connected to the rotation axis (51) so that the pressure roller (50) rotates at a predetermined speed.

[0034] Additionally, an upper spring (38) that presses the lifting block (37) downward is connected to the upper surface of the lifting block (37), and a lower spring (39) that supports the lifting block (37) is connected to the lower surface of the lifting block (37), so that the lifting block (37) is configured to be elastically raised and lowered.

[0035] Accordingly, the pressure roller (50) is raised and lowered appropriately according to the thickness of the waste fishing net (1) being transported by the above-mentioned conveyor device (20), thereby pressing the waste fishing net (1) downward with appropriate force.

[0036] At this time, the pressure roller (50) has a perimeter surface made of a rubber material with high friction, so that the pressure roller (50) does not slip on the discarded fishing net (1).

[0037] The method of cutting a waste fishing net (1) using a waste fishing net cutter configured in this way is as follows.

[0038] First, when a worker places a waste fishing net (1) on the supply conveyor device (11), the waste fishing net (1) is supplied to a primary cutting unit (10) by the supply conveyor device (11), cut to an appropriate length, and then supplied to the cutting unit (A) by the transfer conveyor device (20).

[0039] Then, the waste fishing net (1) supplied to the cutting unit (A) is supplied between the cutting block (32) and the cutting member (33) of the cutting unit (A), and is cut into a length of about 1 to 3 cm by the cutting blade (33a) of the rotating cutting member (33).

[0040] At this time, a pressure roller (50) for applying pressure to the waste fishing net (1) is provided on the upper part of the conveying conveyor device (20), so that the waste fishing net (1) being conveyed to the rear by the conveying conveyor device (20) is supplied to the rear, that is, to the cutting unit (A), at a predetermined speed, thereby allowing the waste fishing net (1) to be cut more effectively.

[0041] That is, the cutting unit (A) cuts the waste fishing net (1) using a rotating cutting member (33). As the cutting member (33) rotates, if the pressure roller (50) is not present, the cutting unit (A) pulls the waste fishing net (1) backward, causing the waste fishing net (1) to loosely flow between the cutting block (32) and the cutting member (33), so that the waste fishing net (1) is cut longer than the predetermined length, and the waste fishing net (1) may not be cut cleanly.

[0042] At this time, a pressure roller (50) is provided on the upper part of the above-mentioned conveyor device (20) so that the waste fishing net (1) is supplied to the cutting unit (A) at a predetermined speed.

[0043] That is, the pressure roller (50) pressurizes the upper surface of the waste fishing net (1) being transported backward by the conveyor device (20) and rotates at a predetermined speed by the drive motor (52) so that the waste fishing net (1) is supplied to the cutting unit (A) at a predetermined speed, thereby supplying the waste fishing net (1) between the cutting block (32) and the cutting member (33) while the waste fishing net (1) is pulled taut, so that the waste fishing net (1) is neatly cut to a predetermined length.

[0044] Then, the cut net pieces are discharged to the upper surface of the discharge conveyor device (35), and then discharged to the collection container (36) by the discharge conveyor device (35) and collected.

[0045] The waste fishing net cutter configured in this manner comprises a conveying conveyor device (20) that extends in the forward and backward directions and conveys the waste fishing net (1) to the rear, a cutting unit (A) provided at the rear of the conveying conveyor device (20) and cuts the waste fishing net (1) supplied by the conveying conveyor device (20), and a pressure roller (50) provided at the upper side of the conveying conveyor device (20) and pressurizes the waste fishing net (1) supplied to the cutting unit (A) by the conveying conveyor device (20), thereby preventing the waste fishing net (1) supplied by the conveying conveyor device (20) from being pressed by the pressure roller (50) and pulled to the rear by the cutting member (33) of the cutting unit (A).

[0046] Therefore, there is an advantage in that the discarded fishing net (1) is prevented from being pulled backward by the cutting member (33) and thus the discarded fishing net (1) is not cut accurately, and the discarded fishing net (1) can be cut accurately and neatly.

[0047] In addition, a driving motor (52) is connected to the pressure roller (50), and the driving motor (52) rotates the pressure roller (50) so that its lower side rotates backward, thereby controlling the speed at which the waste fishing net (1) transported by the conveyor device (20) is supplied to the cutting member (33), which has the advantage of allowing the waste fishing net (1) to be cut more smoothly.

[0048] In addition, a primary cutting unit (10) is provided at the front of the conveyor device (20) to cut the waste fishing net (1) in the first place and supply it to the conveyor device (20), so that the waste fishing net (1) that is excessively long or the waste fishing net (1) that is clumped together is supplied to the cutting unit (A), thereby preventing the waste fishing net (1) from being cut accurately.

[0049] In addition, the pressure roller (50) is vertically coupled to the main body (31) and is pressed downward by an upper spring (38), so that the pressure roller (50) is appropriately raised according to the thickness of the waste fishing net (1) supplied to the cutting unit (A), thereby applying appropriate pressure to the waste fishing net (1), which has the advantage of applying appropriate pressure.

[0050] FIGS. 4 to 10 illustrate a second embodiment according to the present invention, wherein vertical elongated holes (31c) extending in the vertical direction are formed on both sides of the main body (31), and a lifting block (37) is connected to the vertical elongated holes (31c) so as to be vertically movable, which is the same as the first embodiment described above.

[0051] At this time, an upper spring (38) that presses the lifting block (37) downward is connected to the upper surface of the lifting block (37), and a lower spring (39) that supports the lifting block (37) is connected to the lower surface of the lifting block (37), so that the lifting block (37) is configured to be elastically raised and lowered.

[0052] And, according to the present embodiment, as shown in FIGS. 5 to 8, a support block (41) is slidably coupled to the inner surface of the lifting block (37) in the forward and backward direction and the rotation axis (51) of the pressure roller (50) is rotatably coupled thereto, a rear spring (42) connected to the support block (41) to press the support block (41) forward, a limit switch (43) provided on the lifting block (37) to detect when the support block (41) slides backward to a predetermined position, and a control means (44) that receives the signal from the limit switch (43) and controls the speed of the transfer conveyor device (20) and the drive motor (52).

[0053] At this time, the lifting block (37) is formed with a horizontal elongated hole (37a) through which the rotation axis (51) passes, extending in the front-rear direction, and the inner surface of the lifting block (37) is provided with a rail (37b) extending in the front-rear direction.

[0054] And, as shown in FIG. 8, front and rear catches (37c, 37d) are formed on the front and rear ends of the inner surface of the lifting block (37), and the driving motor (52) is slidably coupled to the outer surface of the lifting block (37) in the front and rear direction and connected to the rotation axis (51) of the pressure roller (50).

[0055] The support block (41) is formed such that a through hole (41a) through which the rotation axis (51) passes penetrates both sides of the central portion, and is coupled to the rail (37b) of the lifting block (37) so as to be slidable in the front-rear direction.

[0056] The rear spring (42) is provided between the rear side of the support block (41) and the rear catch (37d), and uses a compression coil spring that presses forward so that the support block (41) catches on the front catch (37c).

[0057] The limit switch (43) is embedded and fixed on the inner side of the lifting block (37) so as to be located at the rear of the horizontal slot (37a), and is provided with a push button (43a) that protrudes into the inner side of the lifting block (37), so that when the support block (41) slides backward, the push button (43a) is pressed by the support block (41) and this is detected.

[0058] The above control means (44) controls the speed of the transfer conveyor device (20) and the drive motor (52) to a first speed so that the waste fishing net (1) is supplied between the cutting block (32) and the cutting member (33) at the first speed, and then detects this through the limit switch (43) when the pressure roller (50) is pulled backward and the support block (41) slides backward, and adjusts the speed of the transfer conveyor device (20) and the drive motor (52) to a second speed set faster than the aforementioned first speed, thereby increasing the speed at which the waste fishing net (1) is supplied between the cutting block (32) and the cutting member (33).

[0059] When the waste fishing net cutter configured in this manner is operated, the pressure roller (50) is rotated at a first speed by the drive motor (52), and at the same time, the transfer conveyor device (20) is driven at a first speed to supply the waste fishing net (1) to the cutting member (33).

[0060] Meanwhile, when the waste fishing net (1) supplied by the above-mentioned conveyor device (20) is cut by a rotating cutting member (33), depending on the thickness of the waste fishing net (1), the cutting member (33) may rapidly pull the waste fishing net (1) backward.

[0061] In this case, the pressure roller (50) is pulled backward, and accordingly, as shown by the dotted line in FIG. 4 or as shown in FIG. 10, the support block (41) slides backward while compressing the rear spring (42), causing the pressure roller (50) to slide backward.

[0062] Then, when the support block (41) is retracted to the position of the limit switch (43), the support block (41) presses the push button (43a) of the limit switch (43), and the control means (44) receives the signal from the limit switch (43), confirms it, and drives the drive motor (52) and the conveyor device (20) at a second speed to supply the waste fishing net (1) to the cutting member (33) more quickly.

[0063] When the waste fishing net (1) is rapidly supplied to the cutting member (33) in this manner, the force pulling the waste fishing net (1) backward is reduced, and accordingly, as shown in FIG. 8, the support block (41) and the pressure block are moved forward by the rear spring (42) and restored to their initial positions.

[0064] At this time, the push button (43a) of the limit switch (43) protrudes, and the control means (44) receives and confirms the signal of the limit switch (43), and slowly drives the drive motor (52) and the transfer conveyor device (20) at a first speed so that the speed at which the waste fishing net (1) is supplied to the cutting member (33) returns to the initial speed.

[0065] The waste fishing net cutter configured in this manner has the advantage that, depending on the speed or force with which the cutting member (33) pulls the waste fishing net (1), the control means (44) controls the transfer conveyor device (20) and the drive motor (52) to adjust the speed of the waste fishing net (1) supplied to the cutting member (33), thereby preventing the middle part of the waste fishing net (1) from being severed by the cutting member (33) or the waste fishing net (1) from not being cut accurately, and enabling the waste fishing net (1) to be cut more accurately. Explanation of the symbols

[0066] 10. Primary cutting unit 20. Transfer conveyor device A. Cutting Unit 50. Pressure Roller

Claims

Claim 1 The apparatus comprises a conveying conveyor device (20) that extends in the forward and backward directions to convey a waste fishing net (1) to the rear, a cutting unit (A) provided at the rear of the conveying conveyor device (20) to cut the waste fishing net (1) supplied by the conveying conveyor device (20), and a pressure roller (50) provided at the upper side of the conveying conveyor device (20) to press the waste fishing net (1) supplied to the cutting unit (A) by the conveying conveyor device (20). The cutting unit (A) comprises a main body (31) provided at the rear of the conveying conveyor device (20), a cutting block (32) provided to extend laterally from the main body (31) to support the lower side of the waste fishing net (1) conveyed to the rear by the conveying conveyor device (20), and a plurality of cutting blades (33a) provided on the circumference surface to extend laterally and rotatably coupled to the main body (31). The device includes a cutting member (33) that cuts a waste fishing net (1) by engaging the cutting blade (33a) with the cutting block (32) when rotated by the drive motor (34), and the drive motor (52) is connected to the pressure roller (50). The drive motor (34) is configured to rotate the pressure roller (50) so that its lower surface rotates backward, thereby controlling the speed at which the waste fishing net (1) transported by the conveyor device (20) is supplied to the cutting member (33). On both sides of the pressure roller (50), a rotation shaft (51) extending laterally is provided. The device includes a lifting block (37) that is vertically movable and coupled to the main body (31), an upper spring (38) connected to the lifting block (37) to press the lifting block (37) downward, and a device that is slidably coupled to the inner surface of the lifting block (37) in the front-rear direction. A support block (41) to which the rotation axis (51) of the pressure roller (50) is rotatably coupled, a rear spring (42) connected to the support block (41) to press the support block (41) forward, and a limit switch (43) provided on the lifting block (37) to detect when the support block (41) slides backward to a predetermined position, andA waste fishing net cutter further comprising a control means (44) that receives a signal from the limit switch (43) and controls the speed of the conveyor device (20) and the drive motor (52), wherein the control means (44) controls the speed of the conveyor device (20) and the drive motor (52) to a first speed so that the waste fishing net (1) is supplied between the cutting block (32) and the cutting member (33) at the first speed, and when the pressure roller (50) is pulled backward and the support block (41) slides backward, it detects this through the limit switch (43), and adjusts the speed of the conveyor device (20) and the drive motor (52) to a second speed set faster than the first speed mentioned above, thereby increasing the speed at which the waste fishing net (1) is supplied between the cutting block (32) and the cutting member (33). Claim 2 delete Claim 3 A waste fishing net cutter according to claim 1, further comprising a primary cutting unit (10) provided in front of the conveying conveyor device (20) to primarily cut the waste fishing net (1) and supply it to the conveying conveyor device (20). Claim 4 A waste fishing net cutter according to claim 1, wherein the pressure roller (50) is vertically coupled to the main body (31) and is pressed downward by an upper spring (38), so that the pressure roller (50) is appropriately raised and lowered according to the thickness of the waste fishing net (1) being transported backward by the conveyor device (20) to press the waste fishing net (1) with an appropriate pressure. Claim 5 delete

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