Workpiece processing device

Abstract

To reduce undesired movement of a workpiece when an abnormal part is removed from the workpiece.SOLUTION: A workpiece processing device according to one embodiment of the disclosure includes: a spray nozzle for spraying a fluid to a workpiece; a base for supporting the spray nozzle; one or more pressing parts for pressing the workpiece; and one or more connection parts which are provided between the one or more pressing parts and the base and support the pressing parts in a manner that the pressing parts may be displaced relative to the base.SELECTED DRAWING: Figure 2A

Description

[Technical field]

[0001] The present disclosure relates to a workpiece machining apparatus. [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 portion of a workpiece as described in Patent Document 1, discarding the entire workpiece including the abnormal portion results in a low yield, and therefore it is desirable to remove the abnormal portion from the workpiece. If the workpiece moves undesirably when removing an abnormal portion from the workpiece, there is a risk that inconveniences will occur, such as a portion that is not abnormal being removed, resulting in a decrease in yield, or the abnormal portion not being sufficiently removed.

[0005] In view of the above circumstances, at least one embodiment of the present disclosure aims to reduce undesirable movement of a workpiece when removing an abnormal portion from the workpiece. [Means for solving the problem]

[0006] A workpiece machining apparatus according to at least one embodiment of the present disclosure includes: A spray nozzle for spraying a fluid onto a workpiece; a base for supporting the spray nozzle; One or more holding portions for holding the workpiece; one or more connection portions provided between the one or more pressing portions and the base, the connection portions supporting the pressing portions displaceably relative to the base; Equipped with. Effect of the Invention

[0007] According to at least one embodiment of the present disclosure, undesired movement of the workpiece can be reduced when removing an abnormal portion from the workpiece. [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; [Figure 2A] FIG. 2 is a perspective view of a removal section of the work processing device. [Figure 2B] FIG. [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] 13 is a diagram showing a state in which a workpiece having a different thickness depending on the location is pressed downward by a pressing portion. FIG. [Diagram 5] FIG. 13 is a schematic side view of a removal unit according to another embodiment. [Figure 6] FIG. 13 is a schematic side view of a removal unit according to still another embodiment. [Figure 7] FIG. 13 is a schematic side view of a removal unit according to still another embodiment. 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. 2A is a perspective view of a removal unit 23 (to be described later) of the work processing apparatus 1. FIG. FIG. 2B is a side view of the removal portion 23. 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 an abnormal portion 5 of a workpiece 3. The abnormal portion 5 is a deteriorated portion that is inedible or a portion that is visually undesirable for being mixed into the processed food of the workpiece 3, and if the workpiece 3 is, for example, a potato, it is a green, corky, or corroded portion. 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, for example, potatoes sliced ​​to a specified thickness before heating. 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) 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 on the lower side in the figure separated from the upper surface of the work transport belt 11. For example, the distance between this 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, 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. 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. 1. 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 as shown, and the tip 15a of the leveling machine 15 flips the overlapping upper workpiece 3 to the upstream side in the conveying direction when it moves toward the upstream side in the conveying direction 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 spray nozzle 21 as a work processing device, 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 (base) 31 that is detachably attached to the tip of the arm 25a of the moving device 25, a spray nozzle 21 attached to the base end 31, a pressing unit 32 for holding down the workpiece 3 when water spray is sprayed, a connection unit 35 that is provided between the pressing unit 32 and the base end 31 and supports the pressing unit 32 so that it can be displaced relative to the base end 31, and a pressing plate (plate-shaped member) 33 to which the pressing unit 32 is attached and which is connected to the connection unit 35.

[0023] The 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. Note that in the following description, the fluid sprayed from the spray nozzle 21 is water W, but the fluid sprayed from the spray nozzle 21 may be a liquid other than water W, or may be a gas such as air.

[0024] The holding portion 32 is a member for holding down the workpiece 3 when spraying water, and in this embodiment, for example, is a plurality of protrusions protruding downward from the lower surface of the holding plate 33. The pressing plate 33 is an annular member having a through hole 33a in the center in the examples shown in FIGS. 2A, 2B, 3A to 3D, and FIGS. 4 to 6 which will be described later. The water W sprayed from the spray nozzle 21 is sprayed onto the workpiece 3 through the through-holes 33a.

[0025] As described above, the pressing portion 32 is supported displaceably relative to the base end portion 31 via the connecting portion 35 . In the workpiece processing device 1 according to this embodiment, the connection portion 35 is a spring member capable of applying a biasing force to the pressing portion 32 for pressing down the workpiece 3. 3B, when the moving device 25 moves the removal unit 23 closer to the workpiece 3, the pressing unit 32 comes into contact with the workpiece 3 from above, and when the removal unit 23 is further moved closer to the workpiece 3, the connection unit 35 bends, causing the pressing unit 32 to press the workpiece 3 downward. At that time, at least a portion of the pressing unit 32 may bite into the workpiece 3. The removal unit 23 will be described further below.

[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] In addition, 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 include, for example, the spraying time of the water W and the distance between the workpiece 3 and the spray nozzle 21.

[0032] Next, the control device 40 controls each part so as to move the removal part 23 to the above-mentioned movement target 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 pressing section 32, keeps the 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 spray nozzle 21 to crush and remove the abnormal portion 5. That is, the control device 40 controls the solenoid valve 27 so that the solenoid valve 27 is opened for a specified time. 3C, the water W is sprayed from the 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 a in FIG. 3D, and is discharged to the outside of the work processing device 1 via the discharge pipe 19 (FIG. 1).

[0034] (Regarding removal unit 23) 2A and 2B, the base end (base) 31 and the pressing plate (plate-shaped member) 33 are connected via a connection portion 35 which is a plurality of leaf springs 61. In the removal portion 23 shown in FIGS. 2A and 2B, the plurality of leaf springs 61 are radially arranged at intervals in the circumferential direction centered on the arrangement position of the spray nozzle 21 when the removal portion 23 is viewed from above. In the removal portion 23 shown in FIGS. 2A and 2B, the number of leaf springs 61 is four, but it is sufficient that the number is at least two. The leaf spring 61 may be a thin metal plate or a band-shaped member made of a flexible material such as resin or rubber. The leaf spring 61 may be a thin plate or band-shaped member made of a single material, or may be a composite material including, for example, a reinforcing wire or string-shaped member.

[0035] In the removal section 23 shown in Figures 2A and 2B, by arranging multiple leaf springs 61 as described above, the relative vertical position between the base end portion 31 and the pressure plate 33 can be changed, and the relative horizontal position can also be changed.

[0036] FIG. 4 is a diagram showing a state in which the workpiece 3, which has a different thickness depending on the location, is pressed downward by the pressing portion 32. For example, when the workpiece 3 is a round shape like a potato, the sliced ​​workpiece 3 sliced ​​from the edge of the potato has a different thickness depending on the location, as shown in FIG. 2A and 2B, by arranging a plurality of leaf springs 61 as described above, the relative attitude between the base end 31 and the pressing plate 33, i.e., the inclination of the pressing plate 33 with respect to the base end 31, can be changed. Therefore, since the vertical position of the pressing parts 32 is allowed to differ for each pressing part 32, as shown in FIG. 4, even if the thickness of the workpiece 3 differs depending on the location, the pressing parts 32 can press the workpiece 3 downward in accordance with the shape of the workpiece 3. That is, in the removal portion 23 shown in Figures 2A and 2B, the multiple leaf springs 61 can tolerate a difference in the distance between the base end portion 31 and one of the at least two pressing portions 32 when the at least two pressing portions 32 are holding down the workpiece 3, and the distance between the base end portion 31 and the other of the at least two pressing portions 32.

[0037] At least one pressing portion 32 needs to be provided, but it is preferable that a plurality of pressing portions are provided at intervals from each other.

[0038] The removal section 23 shown in FIGS. 2A and 2B and FIGS. 5 to 7 described below is provided with a nipple 55 for connecting the spray nozzle 21 and a water supply line 53.

[0039] FIG. 5 is a schematic side view of a remover 23 according to another embodiment. FIG. 6 is a schematic side view of a remover 23 according to still another embodiment. FIG. 7 is a schematic side view of a remover 23 according to still another embodiment.

[0040] 5, the connection portion 35 may be a coil spring 63. In this case, it is preferable that a plurality of the coil springs 63 are arranged at intervals in the circumferential direction centered on the position where the spray nozzle 21 is arranged when the removal portion 23 is viewed from above. In the removal section 23 shown in FIG. 5, by arranging multiple coil springs 63 as described above, the vertical and horizontal relative positions between the base end portion 31 and the pressure plate 33 can be changed, and the horizontal relative position and the relative attitude between the base end portion 31 and the pressure plate 33 can also be changed. In the removal section 23 shown in Figure 5, the multiple coil springs 63 can tolerate a difference in the distance between the base end 31 and one of the at least two pressing portions 32 when the at least two pressing portions 32 are holding down the workpiece 3, and the distance between the base end 31 and the other of the at least two pressing portions 32.

[0041] As shown in FIGS. 2A, 2B, and 5, the connection portion 35 may be an elastic member 66 such as a leaf spring 61 or a coil spring 63.

[0042] 6 and 7, for example, the connection unit 35 may be an actuator 65 such as a fluid-driven cylinder or an electric cylinder configured so that a rod 65a can advance and retreat. In this case, there may be only one actuator 65, but it is preferable that a plurality of actuators 65 are arranged at intervals in the circumferential direction centered on the position where the spray nozzle 21 is arranged when the removal unit 23 is viewed from above. When the connection portion 35 is a plurality of actuators 65, the pressing plate 33 may be divided into a plurality of parts in the circumferential direction as shown in FIG. In this case, in the removal section 23 shown in Figure 7, the multiple actuators 65 can tolerate the distance between the base end 31 and one of the at least two pressing portions 32 when the at least two pressing portions 32 are holding down the workpiece 3 being different from the distance between the base end 31 and the other of the at least two pressing portions 32.

[0043] 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 work 3 in the above-described embodiment was a potato, but it is not limited to potato, and may be other root vegetables such as pumpkin, radish, sweet potato, yam, etc., or it may be fruits and vegetables other than root vegetables, foods other than fruits and vegetables, or materials in the process of being processed into such foods.

[0044] The contents described in each of the above embodiments can be understood, for example, as follows. (1) A workpiece processing device (removal unit 23) according to at least one embodiment of the present disclosure comprises a spray nozzle 21 for spraying a fluid (water W) onto a workpiece 3, a base (base end 31) for supporting the spray nozzle 21, one or more holding portions 32 for holding the workpiece 3, and one or more connection portions 35 provided between the one or more holding portions 32 and the base (base end 31) and supporting the holding portions 32 so as to be displaceable relative to the base (base end 31).

[0045] According to the above configuration (1), the workpiece 3 can be held down by the holding part 32 supported displaceably relative to the base (base end part 31), so that the fluid (water W) can be sprayed onto the workpiece 3 while reducing undesired movement of the workpiece 3. This makes it possible to reduce undesired movement of the workpiece 3 when removing the abnormal part 5 from the workpiece 3 by spraying the fluid (water W) onto the workpiece 3.

[0046] (2) In some embodiments, in the configuration of (1) above, the one or more pressing portions may include at least two pressing portions. It is preferable that the connection portion 35 is capable of allowing a difference between the distance between the base (the base end portion 31) and one of the at least two pressing portions 32 when the at least two pressing portions 32 press the workpiece 3 and the distance between the base (the base end portion 31) and the other of the at least two pressing portions 32.

[0047] According to the above configuration (2), even if the size of the workpiece 3 along the displacement direction of the holding parts 32 relative to the base (base end part 31) varies depending on the position of the workpiece 3, the workpiece 3 can be held down by at least two holding parts 32. This makes it possible to further reduce undesired movement of the workpiece 3 when removing the abnormal part 5 from the workpiece 3.

[0048] (3) In some embodiments, in the configuration of (1) or (2) above, it is preferable to provide a plate-shaped member (pressing plate 33) to which one or more pressing portions 32 are attached and which is connected to the connecting portion 35.

[0049] According to the above configuration (3), the positional relationship between the pressing portion 32 and the connecting portion 35 can be determined by the plate-like member (pressing plate 33).

[0050] (4) In some embodiments, in the configuration of (3) above, the plate-like member (presser plate 33) may have an opening (through hole 33a) through which the fluid (water W) sprayed from the spray nozzle 21 can pass.

[0051] According to the above configuration (4), the fluid (water W) sprayed from the spray nozzle 21 is not interfered with by the plate-like member (presser plate 33).

[0052] (5) In some embodiments, in any of the configurations (1) to (4) above, the connection portion 35 may be one or more elastic members 66 provided between the one or more pressing portions 32 and the base (base end portion 31).

[0053] According to the above configuration (5), the elastic member 66 can apply a biasing force for the pressing portion 32 to press the workpiece 3, thereby further reducing undesirable movement of the workpiece 3 when removing the abnormal portion 5 from the workpiece 3.

[0054] (6) In some embodiments, in the configuration of (5) above, the elastic member 66 may be one or more leaf springs 61 provided between one or more pressing portions 32 and the base (proximal end portion 31).

[0055] According to the above configuration (6), the leaf spring 61 can apply a spring force for the pressing portion 32 to press the workpiece 3, so that undesired movement of the workpiece 3 can be further reduced when removing the abnormal portion 5 from the workpiece 3 with a relatively simple configuration.

[0056] (7) In some embodiments, in the configuration of (5) above, the elastic member 66 may be one or more coil springs 63 provided between one or more pressing portions 32 and the base (proximal end portion 31).

[0057] According to the above configuration (7), the coil spring 63 can apply a spring force for the pressing portion 32 to press the workpiece 3, so that undesired movement of the workpiece 3 can be further reduced when removing the abnormal portion 5 from the workpiece 3 with a relatively simple configuration.

[0058] (8) In some embodiments, in any of the configurations (1) to (4) above, the connection portion 35 may be one or more actuators 65 provided between one or more pressing portions 32 and the base (base end portion 31).

[0059] According to the above configuration (8), the actuator 65 can apply a biasing force for the pressing portion 32 to press the workpiece 3, thereby further reducing undesirable movement of the workpiece 3 when removing the abnormal portion 5 from the workpiece 3. [Explanation of symbols]

[0060] 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 Spray nozzle 23 Removal part 25 Mobile Devices 31 Base end 32 Presser section 33 Pressing plate (plate-shaped member) 35 Connection 40 Control device 41 Imaging device 43 Encoder 61 Leaf spring 63 Coil Spring 65 Actuator 65a Rod 66 Elastic Members

Claims

1. A spray nozzle for spraying a fluid onto a workpiece; a base for supporting the spray nozzle; One or more holding portions for holding the workpiece; one or more connection portions provided between the one or more pressing portions and the base, the connection portions supporting the pressing portions displaceably relative to the base; A workpiece processing device comprising:

2. The one or more pressing portions include at least two pressing portions, The connection portion is capable of allowing a distance between the base and one of the at least two pressing portions when the at least two pressing portions press the workpiece to be different from a distance between the base and the other of the at least two pressing portions. The workpiece machining device according to claim 1.

3. a plate-like member to which the one or more pressing portions are attached and which is connected to the connecting portion; Equipped with 3. The workpiece machining device according to claim 1 or 2.

4. The plate-like member has an opening through which the fluid sprayed from the spray nozzle can pass. The workpiece machining device according to claim 3.

5. The connection portion is one or more elastic members provided between the one or more pressing portions and the base.

3. The workpiece machining device according to claim 1 or 2.

6. The elastic member is one or more leaf springs provided between the one or more pressing portions and the base. The workpiece machining apparatus according to claim 5.

7. The elastic member is one or more coil springs provided between the one or more pressing portions and the base. The workpiece machining apparatus according to claim 5.

8. The connection portion is one or more actuators provided between the one or more pressing portions and the base.

3. The workpiece machining device according to claim 1 or 2.

Images