Workpiece processing device

Abstract

To remove an abnormal part from a workpiece which is a root vegetable efficiently.SOLUTION: A workpiece processing device according to at least one embodiment of the disclosure includes: a mesh belt conveyor which has a mesh belt serving as a workpiece transport belt and is used to transport a workpiece which is a root vegetable; a water spray nozzle which is located above the workpiece transport belt and used to crush an abnormal part of the workpiece; and a drain receiver which is located below the workpiece transport belt and used to receive water jetted from the water spray nozzle.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a workpiece processing apparatus for processing a workpiece that is a root vegetable. [Background technology]

[0002] 2. Description of the Related Art In a production process for producing processed fruits and vegetables, abnormal parts of the fruits and vegetables as a workpiece are detected in order to remove such abnormal parts (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6310637 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, after detecting an abnormal part in a workpiece as described in Patent Document 1, it is desirable to remove the abnormal part from the workpiece because the yield is poor if the entire workpiece containing the abnormal part is discarded. However, if a metal product such as a blade is used to remove the abnormal part, there is a risk of metal foreign matter being mixed in due to chipping of the blade, etc. In addition, it is necessary to take measures to prevent the removed abnormal parts from being mixed into the subsequent process so that they do not flow into the subsequent process together with workpieces that have no abnormal parts. Furthermore, it is desirable that the removal of foreign matter be performed efficiently.

[0005] In view of the above circumstances, at least one embodiment of the present disclosure aims to efficiently remove abnormal parts from a workpiece that is a root vegetable. [Means for solving the problem]

[0006] At least one embodiment of the present disclosure relates to a work processing device, A mesh belt conveyor having a mesh belt as a work transport belt and for transporting a workpiece which is a root vegetable; A water spray nozzle located above the work conveying belt for crushing an abnormal portion of the work; A drain receiver located below the work conveying belt for receiving water sprayed from the water spray nozzle; Equipped with. Effect of the Invention

[0007] According to at least one embodiment of the present disclosure, abnormal portions can be efficiently removed from a workpiece that is a root vegetable. [Brief description of the drawings]

[0008] [Figure 1] 1 is a diagram showing the overall configuration of a work processing device according to an embodiment of the present invention; [Diagram 2] FIG. 13 is a diagram for explaining a leveling machine of the work processing device. [Figure 3A] FIG. 13 is a diagram for explaining removal of an abnormal portion of a workpiece. [Figure 3B] FIG. 13 is a diagram for explaining removal of an abnormal portion of a workpiece. [Figure 3C] FIG. 13 is a diagram for explaining removal of an abnormal portion of a workpiece. [Figure 3D] FIG. 13 is a diagram for explaining removal of an abnormal portion of a workpiece. [Figure 4] 1 is a graph showing the relationship between the distance between the workpiece and the water spray nozzle and the size of the abnormal portion to be removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, some embodiments of the present disclosure will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of components described as the embodiments or shown in the drawings are merely illustrative examples and are not intended to limit the scope of the present disclosure. For example, expressions expressing relative or absolute configuration, such as "in a certain direction," "along a certain direction," "parallel," "orthogonal," "center," "concentric," or "coaxial," not only strictly express such a configuration, but also express a state in which there is a relative displacement with a tolerance or an angle or distance to the extent that the same function is obtained. For example, expressions indicating that things are in an equal state, such as "identical," "equal," and "homogeneous," not only indicate a state of strict equality, but also indicate a state in which there is a tolerance or a difference to the extent that the same function is obtained. For example, expressions describing shapes such as a rectangular shape or a cylindrical shape do not only refer to rectangular shapes, cylindrical shapes, etc. in the strict geometric sense, but also refer to shapes that include uneven portions, chamfered portions, etc., to the extent that the same effect is obtained. On the other hand, the expressions "comprise," "include," "have," "includes," or "have" of one element are not exclusive expressions excluding the presence of other elements.

[0010] FIG. 1 is a diagram showing the overall configuration of a work processing apparatus 1 according to this embodiment. FIG. 2 is a diagram for explaining a leveller 15 of the work processing apparatus 1, which will be described later. 3A to 3D are diagrams for explaining the removal of the abnormal portion 5 of the workpiece 3. FIG.

[0011] The workpiece processing device 1 according to this embodiment is a device for removing abnormal parts 5 from the workpiece 3, which is a root vegetable. The abnormal parts 5 are deteriorated parts that are inedible and parts that are visually undesirable for mixing into the processed food of the workpiece 3. If the workpiece 3 is, for example, a potato, the abnormal parts 5 are greening, corky surface of the potato caused by bruising or external wounds, internal damage caused by central cavity, brown core rot, black core rot, browning of vascular bundles, bruising, etc., corroded parts, etc. The workpiece processing apparatus 1 according to this embodiment can crush and remove the abnormal portion 5 of the workpiece 3 by spraying water onto the abnormal portion 5.

[0012] The work processing device 1 according to this embodiment includes a mesh belt conveyor 10 for transporting the work 3, and a leveller 15 for eliminating overlaps of the work 3. The work processing device 1 according to this embodiment includes a removal device 20 for removing the abnormal part 5 of the work 3, a drain receiver 17 for receiving the removed abnormal part 5 and the water W, a discharge pipe 19 for discharging the removed abnormal part 5 and the water W, a pressure pump 51 for pressurizing the water W for the water spray, a control device 40 for controlling the entire work processing device 1, an imaging device 41 for detecting the abnormal part 5, and an encoder 43 for detecting the amount of movement of the work transport belt 11.

[0013] (Mesh belt conveyor 10) The mesh belt conveyor 10 according to this embodiment includes a work transport belt 11, a drive motor 13 for driving the work transport belt 11, and a plurality of support members 14 for supporting the work transport belt 11 from below. The support member 14 is, for example, a shaft-shaped member extending in the conveying direction, and it is preferable that a plurality of support members 14 are provided at intervals in a direction perpendicular to the conveying direction.

[0014] (Work conveyor belt 11) The workpiece transport belt 11 is, for example, a mesh belt 12 made of metal filaments woven into a mesh shape, and has openings on which the workpieces 3 can be placed and through which the abnormal parts 5 crushed by water spray as described below can pass. For example, the workpiece transport belt 11 may have openings large enough to allow the abnormal parts 5 crushed to an equivalent volume sphere diameter of 10 mm or less to pass through. The workpiece transport belt 11 is driven by a drive motor 13, and is capable of transporting the workpiece 3 placed on the workpiece transport belt 11 in the transport direction.

[0015] Information regarding the amount of movement of the workpiece transport belt 11 in the transport direction is detected by an encoder 43 and transmitted to a control device 40, which will be described in detail later.

[0016] (Work 3) The work 3 to be processed by the work processing device 1 according to this embodiment is unheated potatoes sliced ​​to a specified thickness. The work 3 is transported from a transport device (not shown) in a front process of the work processing device 1, and is supplied to the upstream side of the work transport belt 11 of the work processing device 1 (the right side in FIG. 1).

[0017] (Leveller 15) 2, in the work processing device 1 according to this embodiment, the leveling machine 15 is disposed above the work transport belt 11 on the upstream side of the work transport belt 11, and is intended to eliminate overlapping of the workpieces 3 on the work transport belt 11. In the work processing device 1 according to this embodiment, the leveling machine 15 is, for example, a member having a tip portion 15a spaced a distance He from the upper surface of the work transport belt 11. The distance He between the tip portion 15a and the upper surface of the work transport belt 11 is greater than the thickness t of the workpiece 3 and less than twice the thickness t of the workpiece 3 (2t).

[0018] If the workpieces 3 do not overlap, they pass under the tip 15a of the leveller 15. If the workpieces 3 overlap, as shown in Fig. 2, the workpiece 3 overlapping on top of the other workpiece 3 interferes with the tip 15a of the leveller 15 and is removed from the lower workpiece 3 as shown by the arrow a. In this way, the leveller 15 eliminates the overlap between the workpieces 3 so that the workpieces 3 are not transported downstream in the transport direction while remaining overlapped. The leveling machine 15 may be a device in which a plurality of members are attached radially to a rotating shaft (not shown) that is disposed above the workpiece conveying belt 11 and extends in the depth direction of the paper surface of Fig. 2. In this case, the leveling machine 15 may be configured such that the member rotates about the rotating shaft as the rotating shaft rotates counterclockwise in the figure, and the tip 15a of the leveling machine 15 flips the overlapping upper workpiece 3 upstream in the conveying direction when it moves toward the upstream side in the conveying direction at a position spaced a distance He from the upper surface of the workpiece conveying belt 11 at the 6 o'clock position.

[0019] (Imaging device 41) In the work processing device 1 of this embodiment, the imaging device 41 is located downstream in the conveying direction from the leveling machine 15 and upstream in the conveying direction from the removal device 20 described later, above the work conveying belt 11. The imaging device 41 captures an image of the workpiece 3 on the workpiece conveying belt 11, and transmits the obtained image data to the control device 40. The image data is linked to information on the amount of movement of the workpiece conveying belt 11 from the encoder 43 (for example, the count number of output pulses from the encoder 43 at the time of imaging), and is stored in a storage device (not shown) of the control device 40.

[0020] (Removal device 20) In the work processing device 1 of this embodiment, the removal device 20 includes a removal section 23 having a water spray nozzle 21, a moving device 25 for moving the removal section 23, a pressure pump 51, and an solenoid valve 27. In the workpiece processing apparatus 1 according to this embodiment, for example, two removing devices 20 are arranged, but the number may be one, or three or more.

[0021] The moving device 25 is, for example, a robot, and is a device for moving the removal unit 23, which will be described later, toward the workpiece 3 having the abnormal portion 5. The moving device 25 does not have to be a robot, and may be any device that can move the removal unit 23 in the horizontal and vertical directions.

[0022] As shown in Figures 3A to 3D, the removal unit 23 has a base end 31 that is removably attached to the tip of the arm 25a of the moving device 25, a water spray nozzle 21 attached to the base end 31, a pressure plate 33 for holding down the workpiece 3 when spraying water, and a support unit 35 for supporting the pressure plate 33 so that it can be moved vertically relative to the base end 31.

[0023] The water spray nozzle 21 is a spray nozzle capable of spraying water W supplied from a pressure pump 51 via a water supply line 53. The water supply line 53 is provided with an electromagnetic valve 27 whose opening and closing is controlled by the control device 40.

[0024] The pressing plate 33 is a member for holding down the workpiece 3 when spraying water, and in the example shown in Figs. 3A to 3D, is an annular member having a through hole 33a in the center. The water W sprayed from the water spray nozzle 21 is sprayed onto the workpiece 3 through the through-hole 33a.

[0025] As described above, the pressing plate 33 is attached to the base end portion 31 via the support portion 35 so as to be movable up and down. In the workpiece processing device 1 according to this embodiment, the support portion 35 is a spring member capable of applying a biasing force to the pressing plate 33 for pressing down the workpiece 3. As shown in Figure 3B, when the removal unit 23 is brought closer to the workpiece 3 by the moving device 25, the pressure plate 33 comes into contact with the upper surface of the workpiece 3, and when the removal unit 23 is brought even closer to the workpiece 3, the support unit 35 bends, causing the pressure plate 33 to press the workpiece 3 downward.

[0026] (Control device 40) In the work processing device 1 according to this embodiment, as described above, the control device 40 is a control device for controlling the entire work processing device 1. The control device 40 is composed of, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and a computer-readable storage medium. A series of processes for realizing various functions is stored in a storage medium or the like in the form of a program, and the CPU reads this program into the RAM or the like and executes information processing and arithmetic processing to realize various functions. The program may be installed in a ROM or other storage medium in advance, provided in a state stored in a computer-readable storage medium, or distributed via wired or wireless communication means. The computer-readable storage medium is a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. The control device 40 has, as functional blocks of the control device 40, an abnormal part information acquisition unit 40a capable of acquiring information regarding at least the size of the abnormal part 5, and a calculation unit 40b that calculates the water injection conditions based on the information regarding the size acquired by the abnormal part information acquisition unit. The details of the control performed by the control device 40 will be explained later.

[0027] (Operation of the work processing device 1) The operation of the work processing device 1 will now be described. When the workpieces 3 sliced ​​to a specified thickness are supplied to the upstream side (the right side in FIG. 1) of the workpiece conveying belt 11 of the workpiece processing device 1 as described above, they move downstream in the conveying direction together with the movement of the workpiece conveying belt 11. At that time, even if the workpieces 3 overlap each other, the leveling machine 15 eliminates the overlapping of the workpieces 3. Therefore, the imaging device 41 can capture images of the workpieces 3 without any overlapping of the workpieces 3.

[0028] Image data obtained by imaging the workpieces 3 on the workpiece conveying belt 11 with the imaging device 41 is transmitted to the control device 40. Then, as described above, the image data is linked to information on the amount of movement of the workpiece conveying belt 11 from the encoder 43 (for example, the count number of output pulses from the encoder 43 at the time of imaging) and stored in a storage device (not shown) of the control device 40.

[0029] The abnormal part information acquisition unit 40a of the control device 40 detects the abnormal part 5 by performing image processing on the image data from the imaging device 41. Then, the abnormal part information acquisition unit 40a stores information on the position and size of the detected abnormal part 5 in a storage device (not shown). The abnormal part information acquisition unit 40a stores the position of the detected abnormal part 5 in the width direction of the workpiece conveying belt 11 (the depth direction of the paper in Figs. 1 to 3D) in a storage device (not shown), and stores the position in the conveying direction of the workpiece conveying belt 11 in a storage device (not shown) in association with, for example, the count number of output pulses of the encoder 43 at the time of imaging. That is, the abnormal part information acquiring unit 40a can acquire information on the position and size of the abnormal part 5.

[0030] Next, the control device 40 calculates a movement target position for the removal unit 23. Among the movement target positions, the position in the width direction of the workpiece conveying belt 11 is the position of the abnormal part 5 in the width direction. Among the movement target positions, the position in the conveying direction of the workpiece conveying belt 11 is the position of the abnormal part 5 in the conveying direction that changes from moment to moment due to the movement of the workpiece conveying belt 11. Among the movement target positions, the position in the height direction will be described later.

[0031] Furthermore, the calculation unit 40b of the control device 40 calculates the spraying conditions of the water W based on the information on the size of the abnormal part 5 acquired by the abnormal part information acquisition unit 40a. Here, the spraying conditions of the water W are, for example, the spraying time Ts of the water W and the distance Hs between the workpiece 3 and the water spray nozzle 21. The spraying conditions of the water W will be described later.

[0032] Next, the control device 40 controls each part so as to move the removal part 23 to the target movement position. That is, for example, as shown in FIG. 3A, when a workpiece 3 having an abnormal portion 5 is transported, the control device 40 moves the removal unit 23 to the movement target position as shown in FIG. 3B. As a result, the removal section 23 presses the workpiece 3 downward with the pressure plate 33, keeps the water spray nozzle 21 positioned above the abnormal part 5, and moves downstream in the conveying direction in accordance with the movement of the workpiece conveying belt 11 in the conveying direction.

[0033] Then, the control device 40 controls each part so that water W is sprayed from the water spray nozzle 21 to crush and remove the abnormal portion 5. That is, the control device 40 controls the solenoid valve 27 so as to open the solenoid valve 27 for a specified time. 3C, the water W is sprayed from the water spray nozzle 21, so that the abnormal portion 5 is crushed by the sprayed water W and is carried away from the mesh of the workpiece conveying belt 11 to the drain receiver 17 together with the water W. In this manner, the abnormal portion 5 is removed from the workpiece 3. The abnormal part 5 that is flushed into the drain receiver 17 flows downward together with the water W as shown by the arrow b in FIG. 3D, and is discharged to the outside of the work processing device 1 via the discharge pipe 19 (FIG. 1).

[0034] (Water W spray conditions) Regarding the spraying conditions of the water W, the position in the height direction among the above-mentioned movement target positions, that is, the distance Hs between the workpiece 3 and the water spray nozzle 21 (see FIG. 3C) will be described. FIG. 4 is a graph showing the relationship between the distance Hs between the workpiece 3 and the water spray nozzle 21 and the size of the abnormal portion 5 to be removed. The shape of the water W sprayed from the water spray nozzle 21 is, for example, a cone shape, and the size of the water W in the direction perpendicular to the spray direction increases with distance from the tip of the water spray nozzle 21. Therefore, if the size of the abnormal part 5 to be removed is small, the distance Hs between the workpiece 3 and the water spray nozzle 21 can be reduced to increase the crushing force of the abnormal part 5 by the water W. On the other hand, if the size of the abnormal part 5 to be removed is large, the distance Hs between the workpiece 3 and the water spray nozzle 21 can be increased to increase the crushing range of the abnormal part 5 by the water W.

[0035] Therefore, as shown in the graph of Figure 4, the calculation unit 40b calculates the distance Hs so that if the size of the abnormal part 5 to be removed is small, the distance Hs between the workpiece 3 and the water spray nozzle 21 is small, and if the size of the abnormal part 5 to be removed is large, the distance Hs between the workpiece 3 and the water spray nozzle 21 is large.

[0036] Among the conditions for spraying the water W, the spray time Ts of the water W will be described. The greater the distance Hs between the workpiece 3 and the water spray nozzle 21, the less the crushing force of the water W on the abnormal portion 5 tends to be. Therefore, it is preferable to increase the ejection time Ts of the water W from the water spray nozzle 21 as the distance Hs between the workpiece 3 and the water spray nozzle 21 increases, thereby improving the reliability of removing the abnormal portion 5. That is, in the graph of Fig. 4, the horizontal axis represents the ejection time Ts of the water W, and the calculation unit 40b calculates the ejection time Ts of the water W from the water spray nozzle 21 so that the ejection time Ts of the water W from the water spray nozzle 21 is increased as the size of the abnormal portion 5 to be removed increases.

[0037] In addition, when the size of the abnormal portion 5 to be removed is large, spraying of water W from the water spray nozzle 21 may be started with the distance Hs between the workpiece 3 and the water spray nozzle 21 reduced, and then the distance Hs between the workpiece 3 and the water spray nozzle 21 may be gradually increased while spraying the water W.

[0038] The present disclosure is not limited to the above-described embodiments, and includes modifications to the above-described embodiments and appropriate combinations of these modifications. For example, the workpiece 3 according to the embodiment described above is a potato, but is not limited to a potato and may be other root vegetables such as pumpkin, radish, sweet potato, or yam.

[0039] The contents described in each of the above embodiments can be understood, for example, as follows. (1) A work processing device 1 according to at least one embodiment of the present disclosure includes a mesh belt 12 as a work transport belt 11 and a mesh belt conveyor 10 for transporting a work 3 which is a root vegetable, a water spray nozzle 21 located above the work transport belt 11 for crushing abnormal portions 5 of the work 3, and a drain receiver 17 located below the work transport belt 11 for receiving water W sprayed from the water spray nozzle 21.

[0040] According to the above configuration (1), since there is no need to use a metal product such as a blade for cutting off the abnormal portion 5, the possibility of contamination by metal foreign matter can be reduced. Furthermore, according to the above configuration (1), the abnormal portion 5 of the workpiece 3, which is a root vegetable, is crushed by spraying the water W from the water spray nozzle 21 onto the abnormal portion 5 of the workpiece 3. Therefore, the abnormal portion 5 can be efficiently removed from the workpiece 3. According to the above configuration (1), the crushed abnormal portion 5 flows into the drain receiver 17 together with the water W sprayed from the water spray nozzle 21, thereby reducing the possibility of the crushed abnormal portion 5 being mixed into the subsequent process of the workpiece 3.

[0041] (2) In some embodiments, the configuration of (1) above may include an abnormal portion information acquisition unit 40a capable of acquiring information regarding at least the size of the abnormal portion 5, and a calculation unit 40b that calculates the spraying conditions for water W based on the information regarding the size acquired by the abnormal portion information acquisition unit 40a.

[0042] According to the above configuration (2), it is possible to spray the water W under spray conditions according to the size of the abnormal portion 5, so that the possibility that the abnormal portion 5 will remain on the workpiece 3 can be reduced.

[0043] (3) In some embodiments, in the configuration of (2) above, the calculation unit 40b may determine at least one of the height position of the water spray nozzle 21 (the distance Hs between the workpiece 3 and the water spray nozzle 21) or the water spray time Ts based on the information regarding size acquired by the abnormal part information acquisition unit 40a.

[0044] According to the above configuration (3), it is possible to spray water W at a height position of the water spray nozzle 21 (the distance Hs between the workpiece 3 and the water spray nozzle 21) or for a spraying time Ts of the water W according to the size of the abnormal part 5, thereby reducing the possibility that the abnormal part 5 will remain on the workpiece 3.

[0045] (4) In some embodiments, in the configuration of (2) above, the calculation unit 40b may determine the height position of the water spray nozzle 21 (distance Hs between the workpiece 3 and the water spray nozzle 21) based on the information related to the size acquired by the abnormal part information acquisition unit 40a. In some embodiments, a height position changing device (moving device 25) may be provided for moving the water spray nozzle 21 to the height position (distance Hs between the workpiece 3 and the water spray nozzle 21) determined by the calculation unit 40b.

[0046] According to the above configuration (4), water W can be sprayed at a height position of the water spray nozzle 21 (distance Hs between the workpiece 3 and the water spray nozzle 21) that corresponds to the size of the abnormal part 5, thereby reducing the possibility that the abnormal part 5 will remain on the workpiece 3.

[0047] (5) In some embodiments, in any of the configurations (2) to (4) above, the abnormal part information acquisition unit 40a may be capable of acquiring information regarding the position of the abnormal part 5. The calculation unit 40b may calculate a target position for spraying water (a target position for moving the removal unit 23) based on the information regarding the position acquired by the abnormal part information acquisition unit 40a.

[0048] According to the above configuration (5), the water W can be efficiently sprayed toward the abnormal part 5.

[0049] (6) In some embodiments, in the configuration of (5) above, a moving device (moving device 25) may be provided for moving the water spray nozzle 21 so as to spray water W toward the target injection position (target movement position of the removal unit 23) determined by the calculation unit 40b.

[0050] According to the above configuration (6), the water W can be efficiently sprayed toward the abnormal part 5.

[0051] (7) In some embodiments, in any of the configurations (1) to (6) above, the mesh belt 12 may have openings large enough to allow abnormal parts pulverized to have an equivalent sphere diameter of 10 mm or less to pass through.

[0052] According to the above configuration (7), the possibility that the pulverized abnormal portion 5 remains on the mesh belt 12 can be reduced, and therefore the possibility that the pulverized abnormal portion 5 is mixed into the workpiece 3 in the subsequent process can be reduced.

[0053] (8) In some embodiments, in any of the configurations (1) to (7) above, it is preferable to provide a pressing device (pressing plate 33 and support portion 35) for pressing the workpiece 3 from above the workpiece conveying belt 11 when water W is sprayed from the water spray nozzle 21, and a support member 14 for supporting from below the workpiece 3 and the workpiece conveying belt 11 pressed by the pressing device (pressing plate 33 and support portion 35).

[0054] According to the above configuration (8), it is possible to reduce the possibility that the position of the workpiece 3 will unintentionally move due to the water W sprayed when the water W is sprayed, and it is also possible to suppress undesirable downward movement of the pressed workpiece 3 and the workpiece conveying belt 11. [Explanation of symbols]

[0055] 1 Work processing device 3 Work 5 Abnormal part 10 Mesh belt conveyor 11 Work conveyor belt 12 Mesh belt 14 Support member 15 Leveling machine 17 Drain pan 20 Removal device 21 Water spray nozzle 23 Removal part 25 Mobile Devices 33 Retaining plate 35 Support part 40 Control device 40a Abnormal part information acquisition part 40b Calculation part 41 Imaging device 43 Encoder

Claims

1. A mesh belt conveyor having a mesh belt as a work transport belt and for transporting a workpiece which is a root vegetable; A water spray nozzle located above the work conveying belt for crushing an abnormal portion of the work; A drain receiver located below the work conveying belt for receiving water sprayed from the water spray nozzle; A work processing device comprising:

2. an abnormal portion information acquisition unit capable of acquiring information regarding at least the size of the abnormal portion; a calculation unit that calculates the water ejection condition based on the information about the size acquired by the abnormal portion information acquisition unit; Equipped with The work processing device according to claim 1 .

3. The calculation unit determines at least one of a height position of the water spray nozzle or a water spray time based on the information related to the size acquired by the abnormal part information acquisition unit. The work processing device according to claim 2 .

4. the calculation unit determines a height position of the water spray nozzle based on the information related to the size acquired by the abnormal portion information acquisition unit; a height position changing device for moving the water spray nozzle to the height position determined by the calculation unit, The work processing device according to claim 2 .

5. the abnormal portion information acquisition unit is capable of acquiring information regarding a position of the abnormal portion, The calculation unit calculates a target position for ejecting the water based on the information related to the position acquired by the abnormal portion information acquisition unit. A work processing apparatus according to any one of claims 2 to 4.

6. a moving device for moving the water spray nozzle so as to spray the water toward the jetting target position determined by the calculation unit, The work processing device according to claim 5 .

7. The mesh belt has openings large enough to allow the abnormal parts crushed to have an equivalent volume sphere diameter of 10 mm or less to pass through. The work processing device according to claim 1 or 2.

8. a pressing device for pressing the workpiece from above the workpiece conveying belt when the water is sprayed from the water spray nozzle; A support member for supporting from below the workpiece and the workpiece conveying belt pressed by the pressing device; Equipped with The work processing device according to claim 1 or 2.

Images