Box recovery system

Abstract

The present invention relates to a box recovery system and, more specifically, to a box recovery system for recovering a scrap box in which scraps such as cuttings or particles of a raw material, which are generated during the processes of manufacturing and processing a product, are loaded. The box recovery system according to an embodiment of the present invention may comprise: a rack in which scrap boxes are installed; and a box recovery unit which is carried in / out of the rack and recovers the scrap boxes, wherein the rack may include a coupling member which clamps the box recovery unit when the box recovery unit is carried in, and unclamps the box recovery unit when the box recovery unit is carried out.

Description

Box recovery system

[0001] Cross-citation with related applications

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2024-0045565, filed April 3, 2024, the entire contents of which are incorporated herein by reference.

[0003] Technology field

[0004] The present invention relates to a box recovery system, and more specifically, to a box recovery system for recovering a scrap box loaded with scrap such as cuttings or dust of raw materials generated in a process of manufacturing or processing a product.

[0005] During the manufacturing and processing of products, scrap, such as raw material chips and dust, is generated. To maintain a pleasant working environment and collect scrap for reprocessing into raw materials, scrap boxes may be provided at locations where manufacturing and processing are performed.

[0006] Conventionally, when a scrap box in a scrap storage device filled with a certain amount of scrap, the scrap box was moved to a designated discharge location before being discharged. Specifically, a worker would move a box recovery unit, which collects scrap boxes, into the scrap storage device and then load the scrap boxes onto the box recovery unit. The box recovery unit would then be moved to a designated scrap discharge location, and the scrap inside the scrap box could be discharged by the worker.

[0007] According to this conventional system, since the scrap storage device did not have a separate fixing member for fixing the box recovery unit, it was difficult to fix the box recovery unit to a designated position within the scrap storage device. In addition, the scrap box was dropped from the scrap storage device and loaded onto the box recovery unit, but if the box recovery unit was not fixed to a designated position within the scrap storage device, the scrap box could not be loaded onto the designated position of the box recovery unit.

[0008] There was a problem where scrap boxes were spilled out of the box recovery unit while the box recovery unit was being moved to the scrap discharge location if the scrap boxes were not loaded into the designated locations of the box recovery unit.

[0009] The present invention has been conceived in recognition of the above problems, and an object of the present invention is to provide a box recovery system capable of loading scrap boxes into designated locations of a box recovery unit.

[0010] A box recovery system according to one embodiment of the present invention comprises: a rack on which a scrap box is installed; and a box recovery unit that is loaded / unloaded from the rack and recovers the scrap box. The rack may include a coupling member that clamps the box recovery unit when the box recovery unit is loaded and unclamps the box recovery unit when the box recovery unit is loaded.

[0011] The above box recovery unit may include a frame forming a stage on which the scrap box is loaded; and a hollow ring installed on a side of the frame.

[0012] The above box recovery unit may further include a handle connected to the frame.

[0013] The above-mentioned joining member may include a clamping unit for clamping / unclamping the box recovery unit.

[0014] The clamping unit may include a load portion extending in a horizontal direction; a U-shaped handle portion connected to the load portion; a servo motor installed at one end of the handle portion; and a rotating member that rotates along the servo motor and clamps / unclamps the box recovery unit.

[0015] The above-mentioned joining member may further include a guide portion that guides horizontal movement of the clamping unit.

[0016] The above guide part may include an open member with one side open and installed horizontally on the rack; and a box-shaped member connected to the open member and having a movement space formed therein in which the load part moves horizontally.

[0017] The above moving space may be an empty space that extends horizontally to correspond to the shape of the load section.

[0018] A sensor that senses a reference surface formed on the frame of the box recovery unit may be installed in the above rack.

[0019] The above box recovery unit may further include a control unit that controls the rotation of the servo motor according to the sensing result of the sensor when loading / unloading.

[0020] A stand on which the scrap box is placed can be installed on the above rack.

[0021] The above stand may be a foldable stand that can be folded and unfolded by manipulation.

[0022] The above box recovery unit may be an autonomous robot that moves in an autonomous manner.

[0023] A box recovery system according to one embodiment of the present invention may include a coupling member that clamps the box recovery unit to a rack when the box recovery unit is brought in, and unclamps the box recovery unit from the rack when the box recovery unit is taken out. In this case, the box recovery unit is brought in only to a designated location within the rack, so scrap boxes can always be loaded only at designated locations of the box recovery unit.

[0024] Fig. 1 is a perspective view showing a scrap box placed on a rack of a box recovery system according to the present invention.

[0025] Figure 2 is a perspective view showing a box recovery unit being loaded into the rack of Figure 1.

[0026] Figure 3 is a perspective view showing the box recovery unit fully loaded into the rack of Figure 1.

[0027] Figure 4 is a perspective view showing the box recovery unit being removed from the rack of Figure 1.

[0028] Fig. 5 is a drawing showing the detailed structure of a joining member installed in the rack of Fig. 1.

[0029] Figure 6 is a drawing showing a sensor installed on the rack of Figure 1 sensing the reference surface of the box recovery unit.

[0030] Hereinafter, with reference to the attached drawings, preferred embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the invention. However, the present invention may be implemented in various different forms and is not limited or restricted by the following examples.

[0031] In order to clearly explain the present invention, a detailed description of a part that is irrelevant to the description or a related known technology that may unnecessarily obscure the gist of the present invention has been omitted, and when adding reference signs to components of each drawing in this specification, the same or similar reference signs are attached to the same or similar components throughout the specification.

[0032] In addition, terms and words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical idea of ​​the present invention based on the principle that the inventor can appropriately define the concept of the term to explain his or her own invention in the best way.

[0033] Hereinafter, the box recovery system of the present invention will be described with reference to the drawings.

[0034]

[0035] Example 1

[0036] Fig. 1 is a perspective view showing a scrap box placed on a rack of a box recovery system according to the present invention, and Fig. 2 is a perspective view showing a box recovery unit being loaded into the rack of Fig. 1. Fig. 3 is a perspective view showing a box recovery unit being completely loaded into the rack of Fig. 1, and Fig. 4 is a perspective view showing a box recovery unit being removed from the rack of Fig. 1.

[0037] Referring to FIGS. 1 to 4, a box recovery system (10) according to a first embodiment of the present invention may include a rack (100) in which a scrap box (Scrap Box, 1) is installed, and a box recovery unit (200) that is loaded / unloaded into / out of the rack (100) and recovers the scrap box (1). Here, a coupling member (110) that clamps the box recovery unit (200) when the box recovery unit (200) is loaded into the rack (100) and unclamps the box recovery unit (200) when the box recovery unit (200) is loaded out may be installed in the rack (100).

[0038] The box recovery unit (200) is clamped to the connecting member (110) installed in the rack (100) as it is brought into the interior of the rack (100), so that the box recovery unit (200) can be fixed to a designated position within the rack (100). That is, the box recovery unit (200) is fixed only to a designated position within the rack (100), so that the scrap box (1) can only be dropped to a designated position within the box recovery unit (200). In this case, there is an advantageous effect that the scrap box (1) can be loaded only at the designated position within the box recovery unit (200), thereby preventing the scrap box (1) from spilling during movement of the box recovery unit (200).

[0039] In addition, when the box recovery unit (200) is moved out of the rack (100), the clamping between the box recovery unit (200) and the coupling member (110) can be released. As a result, the box recovery unit (200) can be released from the rack (100) and freely moved out of the rack (100). That is, the coupling member (110) can be a member that clamps the box recovery unit (200) only while the box recovery unit (200) is positioned inside the rack (100).

[0040] The scrap box (1) is a box into which scraps, such as cuttings or dust from raw materials generated during processes such as product manufacturing and processing, are loaded, and may have various shapes. For example, the scrap box (1) is a rectangular box with an open top, and scraps can be loaded into the scrap box (1) through the open top.

[0041] The scrap box (1) can be installed in the rack (100) in various ways. For example, the scrap box (1) can be installed in a holder (120) formed on the frame of the rack (100). Specifically, wings protruding outward are formed on both sides of the upper portion of the scrap box (1), and these wings can be installed in the holder (120).

[0042] The stand (120) is where the wing portion of the scrap box (1) is placed, and the stand (120) may have a folding structure that can be folded and unfolded by manipulation. When the stand (120) is fully unfolded in a horizontal direction, the scrap box (1) can be placed on the stand (120) and stored inside the rack (100). In addition, the stand (120) can be folded downwards by 90 degrees. When the stand (120) is folded, it can no longer support the wing portion, and thus the scrap box (1) may fall downward.

[0043] The operation of the stand (120) can be performed by the control unit described below. Specifically, the stand (120) can be connected to a servo motor that rotates by an angle determined by the operation of the control unit. The operator can rotate the servo motor by operating the control unit, and the stand (120) connected thereto can be folded and unfolded according to the rotation of the servo motor.

[0044] The rack (100) is a storage unit for temporarily storing scrap boxes (1), and can be formed in various ways. For example, as illustrated in FIGS. 1 to 4, the rack (100) may have a structure in which a plurality of frames are connected. An open passageway through which a box recovery unit (200) is loaded / unloaded is formed in the rack (100), and the scrap box (1) may be positioned above this passageway. Specifically, the scrap box (1) may be mounted on a stand (120) installed above the passageway through which the box recovery unit (200) is loaded / unloaded.

[0045] In addition, the upper part of the rack (100) is open, and the scrap can be loaded into the scrap box (1) by passing through the upper part of the open rack (100). The scrap can pass through the upper part of the rack (100) in various ways. For example, a conveyor belt is installed on the open upper part of the rack (100), and the scrap can be moved to the open upper part of the rack (100) through the conveyor belt. The end of the conveyor belt is located above the open upper part of the rack (100), and the scrap can be dropped into the interior of the rack (100) from the end of the conveyor belt. The scrap can be dropped in this way and loaded into the scrap box (1) inside the rack (100).

[0046] The box recovery unit (200) is a unit that is loaded / unloaded into / from the rack (100) storing scrap boxes (1), and can be configured in various ways. For example, the box recovery unit (200) is a cart equipped with wheels (230) and a handle (220), and a worker can move it by pushing or pulling the handle (220). The box recovery unit (200) can be loaded / unloaded through a passage formed in the rack (100), and the box recovery unit (200) can be clamped to a connecting member (110) when loaded into the interior of the rack (100).

[0047] In addition, when the box recovery unit (200) is completely brought into the interior of the rack (100) and clamped with the joining member (110), the scrap box (1) can be dropped toward the box recovery unit (200) and loaded at a predetermined position on the box recovery unit (200). Thereafter, the clamping between the box recovery unit (200) and the joining member (110) is released, and the box recovery unit (200) can be moved out of the rack (100) with the scrap box (1) loaded thereon. Thereafter, the box recovery unit (200) can be moved to a scrap discharge space for discharging scrap within the scrap box (1).

[0048] The coupling member (110) is installed in the rack (100) and is connected / disconnected with the box recovery unit (200) when the box recovery unit (200) is brought into / taken out of the rack (100), and can be configured in various ways. Specifically, the coupling member (110) is connected with the box recovery unit (200) when the box recovery unit (200) is brought into the rack (100), and can be disconnected from the box recovery unit (200) before the box recovery unit (200) is taken out of the rack (100).

[0049] That is, the coupling member (110) is a member that temporarily fixes the box recovery unit (200) to the rack (100), and can be fixed to the box recovery unit (200) while the box recovery unit (200) is brought into the rack (100) and the scrap box (1) is settled at a predetermined position of the box recovery unit (200). In this case, the box recovery unit (200) is fixed only at a predetermined position within the rack (100), and the scrap box (1) can only fall to a predetermined position of the box recovery unit (200). Therefore, the scrap box (1) is loaded only at a predetermined position of the box recovery unit (200), and the scrap box (1) can be prevented from spilling during movement of the box recovery unit (200).

[0050] In addition, since the coupling member (110) is disengaged from the box recovery unit (200) before the box recovery unit (200) is removed from the rack (100), the box recovery unit (200) can be removed out of the rack (100) without any resistance. For reference, the coupling / disengagement of the coupling member (110) and the box recovery unit (200) can be controlled by a control unit described below.

[0051] Meanwhile, the box recovery unit (200) may include a frame (210) forming a stage (211) on which a scrap box (1) is loaded. Specifically, the box recovery unit (200) includes a body composed of a plurality of frames (210), and a flat stage (211) may be formed on the upper side of the body. The scrap box (1) falls from the rack (100) and settles on the stage (211), and a plurality of protrusions (211a) protruding upward may be formed on the corners of the stage (211).

[0052] Specifically, the stage (211) is a flat rectangular plane, and the area of ​​the stage (211) may be formed to be substantially the same as the area of ​​the lower surface of the scrap box (1), or may be formed to be wider by a predetermined size than the area of ​​the lower surface of the scrap box (1). A pair of protrusions (211a) may be formed at each of the four corners of the stage (211). That is, the scrap box (1) may fall into the space between the plurality of protrusions (211a) formed on the stage (211).

[0053] Since the space between the plurality of protrusions (211a) is formed to be substantially the same as the area of ​​the lower surface of the scrap box (1) or as wide as a predetermined size, the scrap box (1) dropped onto the stage (211) can be settled in the space between the plurality of protrusions (211a). Since the plurality of protrusions (211a) protrude upward from the stage (211), the scrap box (1) can be prevented from falling during the movement of the box recovery unit (200).

[0054] Meanwhile, the box recovery unit (200) may include a hollow ring (212) installed on the side of the frame (210). Specifically, the hollow ring (212) may be installed on each of the left and right sides of the frame (210). In particular, the height at which the ring (212) is installed on the frame (210) may be substantially the same as the height of the connecting member (110) installed on the rack (100).

[0055] The ring (212) has substantially the same height as the connecting member (110), so that when the box recovery unit (200) is brought into the rack (100), the ring (212) can be connected to the connecting member (110). In addition, before the box recovery unit (200) is taken out from the rack (100), the ring (212) and the connecting member (110) can be disconnected.

[0056] The box recovery unit (200) may include a handle (220) connected to a frame (210). The handle (220) may have various structures. For example, the handle (220) may include a handle member (221) connected to the frame (210) and a handle portion (222) connected to the handle member (221). A pair of wheels (230) installed on the lower side of one side of the frame (210) may be positioned on the lower side of the handle member (221).

[0057] The worker can move the box recovery unit (200) by pushing or pulling the box recovery unit (200) while holding the handle portion (222) of the handle (220). In particular, the worker can push the box recovery unit (200) to bring the box recovery unit (200) into the rack (100), and pull the box recovery unit (200) to take the box recovery unit (200) out of the rack (100). At this time, since a pair of wheels (230) are located at the lower part of the handle base (221), they are located close to the force point where the worker pushes and pulls the handle portion (222). In this case, the force that the worker uses to push and pull the handle portion (222) is transmitted more quickly to the pair of wheels (230), so that the worker can easily move the box recovery unit (200).

[0058] Fig. 5 is a drawing showing a detailed structure of a joining member installed in the rack of Fig. 1. Referring to Fig. 5, the joining member (110) may include a clamping unit (111) that clamps / unclamps a box recovery unit (200) and a guide portion (112) that guides horizontal movement of the clamping unit (111).

[0059] The clamping unit (111) is installed at substantially the same height as the ring (212) of the box recovery unit (200) and is clamped and / or unclamped by the ring (212), and may be configured in various ways. For example, the clamping unit (111) may include a load portion (111a) extending horizontally, a U-shaped handle portion (111b) connected to the load portion (111a), a servo motor (111c) installed at one end of the handle portion (111b), and a rotating member (111d) that rotates along the servo motor (111c) and clamps / unclamps the box recovery unit (200).

[0060] At this time, the load portion (111a) and the handle portion (111b) are formed integrally, and the servo motor (111c) can be inserted into one end of the U-shaped handle portion (111b). Specifically, the servo motor (111c) can be inserted into a space provided inside one end of the handle portion (111b) and rotated by a predetermined angle under the control of the control portion described later.

[0061] The rotating member (111d) is a member that rotates together with the rotation of the servo motor (111c) and can be connected to the servo motor (111c) in various ways. For example, a part of the rotating member (111d) can be welded to the rotational axis of the servo motor (111c) or connected to a brush connected to the rotational axis of the western motor (111c).

[0062] Meanwhile, the guide part (112) may include an open member (112a) with one side open and installed horizontally on the rack (100) and a box-shaped member (112b) connected to the open member (112a) and having a movement space (S) formed therein in which the load part (111a) moves horizontally.

[0063] The open member (112a) is a member in the shape of the letter 'ㄷ' with one side open, and can be installed horizontally on the rack (100). The open surface of the open member (112a) faces the space where the box recovery unit (200) is loaded / unloaded, and when the box recovery unit (200) is loaded / unloaded, the ring (212) formed on the box recovery unit (200) can pass through the open surface of the open member (112a).

[0064] The box-shaped member (112b) is a rectangular box-shaped member connected to the end of the open member (112a), and a movement space (S) in which the load portion (111a) moves horizontally can be formed inside the box-shaped member (112b). At this time, the movement space (S) can be an empty space that is extended horizontally to correspond to the shape of the load portion (111a).

[0065] When the box recovery unit (200) is brought into the rack (100), the rotating member (111d) is clamped to the ring (212) of the box recovery unit (200), and as the box recovery unit (200) is brought in, the load portion (111a) can be inserted to the end of the moving space (S). In this case, the load portion (111a) can no longer be inserted into the inside of the moving space (S), so the box recovery unit (200) stops being brought in and stops. The position where the box recovery unit (200) stops is a designated position within the rack (100), and a scrap box (1) can be positioned above the box recovery unit (200) stopped at the position. Thereafter, the scrap box (1) can be dropped and settled on the stage (211) of the box recovery unit (200).

[0066] As described above, after the scrap box (1) is placed on the stage (211), the box recovery unit (200) can be moved out of the rack (100). In this case, the load portion (111a) can be moved toward the outside of the moving space (S). Before the load portion (111a) is completely moved out of the moving space (S), the clamping between the rotating member (111d) and the ring (212) is released, and the box recovery unit (200) can be moved out of the rack (100) without restraint.

[0067] That is, since the clamping unit (111) and the guide part (112) having the above structure are included in the joining member (110), the worker can load the scrap box (1) at a preset position on the box recovery unit (200) and easily load / unload the box recovery unit (200) into / out of the rack (100).

[0068] Meanwhile, Fig. 6 is a drawing showing a sensor installed on the rack of Fig. 1 sensing a reference surface of a box recovery unit. Referring to Fig. 6, a sensor (130) that senses a reference surface (A1, A2) formed on a frame (210) of a box recovery unit (200) may be installed on the rack (100).

[0069] Specifically, two reference planes (A1, A2) can be formed at different locations on the frame (210) of the box recovery unit (200), and the sensor (130) can sense these reference planes (A1, A2). This sensor (130) can recognize the reference planes (A1, A2) and can be configured in various ways. For example, the sensors (130) can be installed on both sides of the rack (100) so as to face the space where the box recovery unit (200) is loaded / unloaded.

[0070] A pair of sensors (130) can detect that a reference plane (A1, A2) formed on a frame (210) passes between the sensors (130). The sensors (130) are laser or ultrasonic sensors, and measure the distance between each reference plane (A1, A2) and the sensors (130), thereby detecting that each reference plane (A1, A2) passes between the pair of sensors (130).

[0071] Meanwhile, the box recovery system (10) according to the first embodiment of the present invention may further include a control unit that controls the rotation of the servo motor (111c) according to the sensing result of the sensor (130). The control unit is electrically connected to the servo motor (111c) and can control the clamping / unclamping of the rotating member (111d) and the ring (212) by controlling the rotation of the servo motor (111c).

[0072] Specifically, when the box recovery unit (200) is brought into the interior of the rack (100), the first reference plane (A1) formed on the frame (210) of the box recovery unit (200) passes between a pair of sensors (130). When the sensor (130) recognizes this, the control unit rotates the servo motor (111c) in one direction to open the rotating member (111d). Thereafter, the ring (212) of the box recovery unit (200) can be inserted into the inner area of ​​the handle portion (111b).

[0073] As above, the moment the ring (212) is inserted into the inner region of the handle portion (111b), the second reference surface (A2) of the box recovery unit (200) passes between a pair of sensors (130). When the sensor (130) recognizes this, the control unit rotates the servo motor (111c) in the other direction to close the rotating member (111d). In this case, the ring (212) inserted into the inner region of the handle portion (111b) has its exit blocked by the rotating member (111d), and the box recovery unit (200) is clamped and connected to the rack (100).

[0074] The box recovery unit (200) can move to a designated position within the rack (100) while being clamped to the rack (100). Thereafter, when the scrap box (1) is placed on the stage (211) of the box recovery unit (200), the box recovery unit (200) can be taken out of the rack (100). At this time, when the second reference plane (A2) of the box recovery unit (200) passes between a pair of sensors (130), the control unit rotates the servo motor (111c) in one direction to open the rotation member (111d). Thereafter, as the box recovery unit (200) continues to be taken out, the ring (212) of the box recovery unit (200) comes out from the inner area of ​​the handle portion (111b).

[0075] As above, the moment the ring (212) completely comes out of the inner area of ​​the handle portion (111b), the first reference surface (A1) of the box recovery unit (200) passes between a pair of sensors (130). When the sensor (130) recognizes this, the control unit can close the rotating member (111d) by rotating the servo motor (111c) in the other direction.

[0076] The box recovery system (10) according to the first embodiment of the present invention includes the aforementioned control unit, so that the box recovery unit (200) and the rack (100) can automatically control clamping / unclamping when the box recovery unit (200) is loaded / unloaded.

[0077]

[0078] Second Example

[0079] The box recovery system according to the second embodiment of the present invention differs from the first embodiment in that the box recovery unit that recovers scrap boxes is an autonomous robot. The second embodiment will be described with a focus on differences, omitting any commonalities with the first embodiment as much as possible. It should be noted that any details not described in the second embodiment may be considered equivalent to those described in the first embodiment.

[0080] In the box recovery system (10) according to the second embodiment of the present invention, the box recovery unit (200) may be an autonomous robot that moves autonomously. In this case, the box recovery unit (200) may autonomously move between the unit installation space within the rack and the scrap discharge space. That is, the scrap box is automatically moved to the scrap discharge space without the intervention of a worker, which has the advantageous effect of ensuring a hygienic scrap discharge process.

[0081] The box recovery unit (200) is a robot that autonomously moves back and forth between the unit installation space and the scrap discharge space described above, and can be configured in various ways. For example, unlike those illustrated in FIGS. 1 to 6, the box recovery unit (200) can be an AMR (Autonomous Mobile Robot) or AGV (Automated Guided Vehicle) that autonomously moves back and forth between the unit installation space and the scrap discharge space.

[0082] If the box recovery unit (200) is an AMR or AGV that drives autonomously without the intervention of a worker, there is no need to install a handle (220) on the box recovery unit (200). Therefore, accidents in which the handle (220) collides with surrounding obstacles while the box recovery unit (200) is driving can be prevented in advance, and there is an advantageous effect of enabling a compact design by reducing the overall volume of the box recovery unit (200).

[0083]

[0084] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and various embodiments are possible within the scope equivalent to the technical idea of ​​the present invention and the patent claims to be described below by a person having ordinary skill in the art to which the present invention pertains.

[0085]

[0086] [Explanation of symbols]

[0087] 1: Scrap Box 10: Box Recovery System

[0088] 100: Rack 110: Joint member

[0089] 111: Clamping unit 112: Guide unit

[0090] 120: Stand 130: Sensor

[0091] 200: Box recovery unit 210: Frame

[0092] 211: Stage 212: Ring

[0093] 220: Handle 230: Wheel

[0094] S: Movement space

Claims

1. Rack with installed scrap box; and It is loaded / unloaded from the above rack and includes a box recovery unit that recovers the above scrap box. A box recovery system, wherein the rack includes a coupling member that clamps the box recovery unit when the box recovery unit is brought in and unclamps the box recovery unit when the box recovery unit is taken out.

2. In claim 1, The above box recovery unit, a frame forming a stage on which the above scrap box is loaded; and A box recovery system comprising a hollow ring installed on the side of the above frame.

3. In claim 2, A box recovery system wherein the box recovery unit further includes a handle connected to the frame.

4. In claim 2, A box recovery system wherein the above-mentioned joining member includes a clamping unit for clamping / unclamping the box recovery unit.

5. In claim 4, The above clamping unit, A load section extending horizontally; A U-shaped handle portion connected to the above load portion; A servo motor installed at one end of the above handle; and A box recovery system comprising a rotating member that rotates along the servo motor and clamps / unclamps the box recovery unit.

6. In claim 5, A box recovery system wherein the above-mentioned joining member further includes a guide portion that guides horizontal movement of the above-mentioned clamping unit.

7. In claim 6, The above guide part, An open member with one side open and installed horizontally on the above rack; and A box recovery system comprising a box-shaped member connected to the open member and having a moving space formed therein in which the load member moves in a horizontal direction.

8. In claim 7, The above moving space is a box recovery system that is an empty space that is extended in a horizontal direction to correspond to the shape of the above load section.

9. In claim 5, A box recovery system in which a sensor for sensing a reference surface formed on the frame of the box recovery unit is installed on the above rack.

10. In claim 9, A box recovery system further comprising a control unit that controls the rotation of the servo motor according to the sensing result of the sensor when the box recovery unit is loaded / unloaded.

11. In claim 1, A box recovery system in which a rack on which the scrap box is placed is installed on the above rack.

12. In claim 11, The above stand is a box recovery system that is a folding stand that can be folded and unfolded by operation.

13. In claim 1, The above box recovery unit is a box recovery system that is an autonomous driving robot that moves autonomously.

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