Work conveying device, work sorting device, and work conveying method

Abstract

To provide a work-piece carrier, a work-piece separator and a method of carrying a work-piece, allowing for suppressing effects on a quality level of a work-piece.SOLUTION: A work-piece separator comprises a carrier table 12 and a rotation body 13 for carrying a work-piece W on a loading surface of the carrier table 12 by rotation. The carrier table 12 of the work-piece separator is allowed to displace between a carrying state to carry the work-piece W and a discharge state to discharge the work-piece W from a carry path. The rotation body 13 of the work-piece separator comprises a rotation drive unit having a rotation shaft and a delivery member 19 for delivering the work-piece W. The delivery member 19 of the rotation body 13 has a delivery face 19a coming in contact with the work-piece W. The delivery face 19a of the delivery member 19 comes in contact with the work-piece W on a second loading surface 12b of the carrier table 12 in a state arranged at a first angle θ1 exceeding 90° to the second loading surface 12b as viewed in a rotation-shaft direction of the rotation body 13.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a workpiece transport device, a workpiece sorting device, and a workpiece transport method. [Background technology]

[0002] As disclosed in Patent Document 1, a known workpiece transport device includes a transport table having a mounting surface on which the workpiece is placed, and a rotating body that transports the workpiece on the transport surface by rotational drive. The rotating body of the workpiece transport device includes a rotation drive unit having a rotation shaft, and a feed member that is provided on the rotation drive unit and feeds out the workpiece. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-117044 Summary of the Invention [Problem to be solved by the invention]

[0004] In the workpiece transport device as described above, if the frictional force of the workpiece against the mounting surface on the transport table increases, there is a risk that the quality of the workpiece will be affected, for example, by the occurrence of scratches on the workpiece.

[0005] An object of the present invention is to provide a workpiece transport device, a workpiece sorting device, and a workpiece transport method that can suppress the impact on the quality of the workpieces. [Means for solving the problem]

[0006] A work transport device that solves the above problem is a work transport device comprising a transport table having a loading surface on which a work is placed, and a rotating body that transports the work on the loading surface by rotational drive, wherein the rotating body comprises a rotational drive unit having a rotation axis, and a feed member that is provided on the rotational drive unit and feeds out the work, the feed member has a feed surface that contacts the work, and the feed surface of the feed member contacts the work on the loading surface while being positioned at an angle of more than 90° with respect to the loading surface of the transport table when viewed from the direction of the rotational axis of the rotating body.

[0007] With this configuration, when a workpiece is delivered by the delivery surface of the delivery member of the rotating body, a force that resists gravity can be applied to the workpiece, thereby reducing the frictional force of the workpiece against the loading surface of the conveyor table.

[0008] In the above workpiece transport device, the rotating body may be arranged so that the center of rotation of the rotating body is located upstream of the center of the transport table in the workpiece transport direction. This configuration makes it possible to further increase the force acting on the workpiece against gravity, as described above. This further reduces the frictional force of the workpiece against the loading surface of the transport table.

[0009] In the above workpiece transport device, the feed surface of the feed member may be an inclined surface that, when viewed from the rotation axis direction of the rotating body, inclines in the rotation direction of the rotating body as it approaches the outer periphery of the feed member. This configuration makes it possible to further increase the force acting on the workpiece against gravity, as described above. This further reduces the frictional force of the workpiece against the second loading surface of the transport table.

[0010] In the above workpiece conveying device, the angle of inclination of the sending surface may be in the range of 1° to 55° inclusive, in terms of the depression angle formed by a line connecting the rotation center of the rotation drive unit and an end point of the rotation direction on the outer periphery of the sending member as a vertex with the horizontal line, when the line is taken as a horizontal line. When this depression angle is 1° or more, the above-mentioned frictional force can be further reduced. When this depression angle is 55° or less, the force for sending the workpiece toward the discharge unit can be ensured, thereby stabilizing the conveyance of the workpiece.

[0011] In the above workpiece transport device, the transport table may have a discharge section inclined upward as the placement surface approaches the downstream side. With this configuration, for example, the workpiece can be easily transferred to a conveyor device disposed adjacent to the downstream side of the transport table.

[0012] In the workpiece conveying device, the workpiece may be an elongated workpiece, and the workpiece may be conveyed in a position in which the longitudinal direction of the workpiece is perpendicular to the conveying direction. For example, such an elongated workpiece can be conveyed using the conveying table and a rotating body.

[0013] In the above-described workpiece transport device, the workpiece may be a glass tube. When the workpiece is a glass tube, the workpiece tends to be easily scratched due to the frictional force of the workpiece against the support surface of the transport table. The above-described workpiece transport device can reduce the frictional force of the workpiece against the support surface of the transport table, thereby reducing the occurrence of scratches on the glass tube.

[0014] The work sorting device comprises a conveying table having a loading surface on which the work is placed, and a rotating body that transports the work on the loading surface by rotational drive, and the conveying table is displaceable between a transport state in which the work is transported and a discharge state in which the work is discharged from the conveying path, and the rotating body comprises a rotational drive unit having a rotation axis, and a feed member provided on the rotational drive unit that feeds the work, and the feed member has a feed surface that contacts the work, and the feed surface of the feed member contacts the work on the loading surface while being positioned at an angle of more than 90° relative to the conveying table's loading surface when viewed from the direction of the rotational axis of the rotating body.

[0015] The method for transporting a workpiece includes a transport step of transporting the workpiece using a transport table having a loading surface on which the workpiece is placed, and a rotating body that transports the workpiece on the loading surface by rotational drive, wherein the rotating body includes a rotational drive unit having a rotation axis, and a feed member that is provided on the rotational drive unit and feeds out the workpiece, the feed member has a feed surface that contacts the workpiece, and the feed surface of the feed member contacts the workpiece on the loading surface while being positioned at an angle of more than 90° relative to the loading surface of the transport table when viewed from the direction of the rotation axis of the rotating body. [Effects of the Invention]

[0016] The present invention exhibits the effect of making it possible to suppress the influence on the quality of the workpiece. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic plan view showing a workpiece sorting device according to this embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. [Figure 3] FIG. 3 is a cross-sectional view illustrating the operation of the workpiece sorting device. [Figure 4] FIG. 4 is a cross-sectional view illustrating the operation of the workpiece sorting device. [Figure 5] FIG. 5 is an enlarged cross-sectional view of region A in FIG. [Figure 6] FIG. 6 is a front view showing the rotating body. [Figure 7] FIG. 7 is a cross-sectional view illustrating the operation of the workpiece sorting device. [Figure 8] FIG. 8 is a cross-sectional view illustrating the operation of the workpiece sorting device. [Figure 9] FIG. 9 is a cross-sectional view showing a workpiece sorting device according to a first modified example. [Figure 10] FIG. 10 is an enlarged cross-sectional view of region B in FIG. [Figure 11] FIG. 11 is a front view showing a rotating body of a modified example. [Figure 12] FIG. 12 is a cross-sectional view showing a workpiece sorting device according to a second modified example. [Figure 13] FIG. 13 is an explanatory diagram illustrating the operation of the second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of a workpiece sorting device and a workpiece sorting method will be described with reference to the drawings. Note that, for the sake of convenience, the drawings may show parts of the configuration exaggerated or simplified. Furthermore, the dimensional ratios of each part may differ from the actual ratios.

[0019] <Outline of workpiece sorting device> As shown in FIGS. 1 and 2, the workpiece sorting device 11 includes a conveying table 12 and a rotating body 13. The conveying table 12 of the workpiece sorting device 11 has a mounting surface on which the workpieces W are placed. The conveying table 12 has an inlet section 14 for loading the workpieces W and an outlet section 15 for unloading the workpieces W. The workpieces W are loaded into the inlet section 14 and transported by a first conveyor device C1 arranged adjacent to the upstream side of the workpiece sorting device 11. The workpieces W unloaded from the outlet section 15 are transported by a second conveyor device C2 arranged adjacent to the downstream side of the workpiece sorting device 11. The conveying table 12 has an intermediate transport section 16 arranged between the inlet section 14 and the outlet section 15. The rotating body 13 of the workpiece sorting device 11 transports the workpieces W on the conveying table 12 by rotational drive.

[0020] In this embodiment, the workpiece W is a long workpiece having a first end Wa and a second end Wb, which are both ends in the longitudinal direction. The workpiece sorting device 11 transports the workpiece W in a position where the longitudinal direction of the workpiece W is perpendicular to the transport direction in a plan view. More specifically, the workpiece W in this embodiment is a tube glass. The workpiece sorting device 11 transports the tube glass in a position where the tube axis direction of the tube glass is perpendicular to the transport direction. The X direction shown in the drawing is the transport direction, the Y axis shown in the drawing is the direction along the longitudinal direction of the workpiece W, i.e., the direction along the tube axis of the tube glass, and the Z axis is the direction along the up-down direction.

[0021] <Transport table> 1, a pair of conveyance tables 12 of the workpiece sorting device 11 are provided corresponding to the first end Wa side and the second end Wb side of the workpiece W. Here, the configuration of the conveyance table 12 provided corresponding to the first end Wa side of the workpiece W will be described, but the conveyance table 12 provided corresponding to the second end Wb side of the workpiece W also has a similar configuration.

[0022] As shown in FIG. 2, the placement surfaces on which the workpiece W is placed on the conveying table 12 include, in order from the upstream side, a first placement surface 12a, a second placement surface 12b, and a third placement surface 12c. The first placement surface 12a is a downwardly inclined surface that slopes downward toward the downstream side. The second placement surface 12b is a horizontal surface. The third placement surface 12c is an upwardly inclined surface that slopes upward toward the downstream side. The loading section 14 of the conveying table 12 has the first placement surface 12a. The intermediate conveying section 16 of the conveying table 12 has the second placement surface 12b. The unloading section 15 of the conveying table 12 has the third placement surface 12c.

[0023] The conveying platform 12 of this embodiment can be switched between a conveying state shown in FIG. 2 in which the workpiece W is conveyed and a discharging state shown in FIG. 8 in which the workpiece W is discharged from the conveying path. In the discharging state, the conveying platform 12 can discharge specific workpieces, such as defective workpieces, from the conveying line of the workpiece sorting device 11. More specifically, the intermediate conveying section 16 of the conveying platform 12 has an upstream intermediate conveying section 16a and a downstream intermediate conveying section 16b. The upstream intermediate conveying section 16a and the downstream intermediate conveying section 16b are configured to be separable by a linear motion mechanism device (not shown). By separating the upstream intermediate conveying section 16a and the downstream intermediate conveying section 16b, a discharge section 17 from which the workpiece W is discharged is formed on the conveying platform 12. Note that the discharge section 17 of the conveying platform 12 can also be formed, for example, by a rotation mechanism that rotates the upstream intermediate conveying section 16a or the downstream intermediate conveying section 16b in the vertical direction.

[0024] <Rotating body> 1, a pair of rotors 13 of the workpiece sorting device 11 is provided corresponding to the first end Wa side and the second end Wb side of the workpiece W. Here, the configuration of the rotor 13 provided corresponding to the first end Wa side of the workpiece W will be described, but the rotor 13 provided corresponding to the second end Wb side of the workpiece W also has a similar configuration.

[0025] As shown in FIGS. 1 and 2, the rotating body 13 of the workpiece sorting device 11 includes a rotation drive unit 18 and a feed member 19 that is provided on the rotation drive unit 18 and feeds out the workpieces W. The rotation drive unit 18 includes a rotation shaft 18a and a drive unit 18b that drives the rotation shaft 18a. The drive unit 18b includes, for example, a motor. The rotation speed of the rotating body 13 provided corresponding to the first end Wa of the workpiece W is configured to match the rotation speed of the rotating body 13 provided corresponding to the second end Wb of the workpiece W. The feed member 19 of the rotating body 13 provided corresponding to the first end Wa of the workpiece W and the feed member 19 of the rotating body 13 provided corresponding to the second end Wb of the workpiece W are arranged to overlap when viewed from the direction of the rotation axis of the rotating body 13.

[0026] The rotating body 13 is equipped with a plurality of feed members 19. The rotating body 13 is capable of feeding a plurality of workpieces W by the plurality of feed members 19. In Figs. 3 to 8, the drawings are simplified and show a state in which one workpiece W is being transported by the rotating body 13.

[0027] As shown in FIGS. 3 to 5, the feed member 19 of the rotating body 13 has a feed surface 19a that comes into contact with the workpiece W. In FIGS. 3 to 5, the feed surface 19a of the feed member 19 is viewed from the rotation axis direction of the rotating body 13 along the Y axis. As shown in FIG. 5, the feed surface 19a is in contact with the workpiece W on the second mounting surface 12b of the conveyance table 12, for example, while being disposed at a first angle θ1 that exceeds 90° with respect to the second mounting surface 12b. For example, as shown in FIG. 7, the feed surface 19a is also in contact with the workpiece W on the third mounting surface 12c of the conveyance table 12, while being disposed at an angle that exceeds 90° with respect to the third mounting surface 12c.

[0028] The angle of the delivery surface 19a of the delivery member 19 with respect to the mounting surface of the conveyance table 12 is preferably 95° or more, and more preferably 100° or more. The angle of the delivery surface 19a of the delivery member 19 with respect to the mounting surface of the conveyance table 12 is preferably, for example, 145° or less.

[0029] As shown in FIGS. 5 and 6 , the delivery surface 19a of the delivery member 19 of this embodiment is an inclined surface that, when viewed from the direction of the rotation axis of the rotor 13, inclines in the rotation direction of the rotor 13 as it approaches the outer periphery of the delivery member 19. The angle of inclination of the delivery surface 19a is defined by a second angle θ2 shown in FIG. 6 . The second angle θ2 is the depression angle between the horizontal line and a line connecting the rotation center P1 of the rotation drive unit 18 and an end point P2 of the rotation direction on the outer periphery of the delivery member 19. The second angle θ2 is preferably 1° or greater, more preferably 3° or greater, and even more preferably 5° or greater. The second angle θ2 is preferably 55° or less, more preferably 53° or less, and even more preferably 50° or less.

[0030] <First conveyor device and second conveyor device> 1 and 2, the first conveyor device C1 carries the workpieces W onto the first loading surface 12a of the carrying-in section 14 in the workpiece sorting device 11. A pair of first conveyor devices C1 are provided corresponding to the first end Wa side and the second end Wb side of the workpieces W, respectively.

[0031] 2, the first conveyor device C1 includes an endless first belt portion C1a and a plurality of first support portions C1b provided on the first belt portion C1a. The pair of first conveyor devices C1 transport the workpieces W in an orientation in which the longitudinal direction of the workpieces W is perpendicular to the transport direction in a plan view.

[0032] 1 and 2, the second conveyor device C2 transports the workpieces W that are carried out from the third loading surface 12c of the discharge section 15 of the workpiece sorting device 11. As with the first conveyor device C1, a pair of second conveyor devices C2 are provided corresponding to the first end Wa side and the second end Wb side of the workpieces W, respectively.

[0033] 2, the second conveyor device C2 includes an endless second belt portion C2a and a plurality of second support portions C2b provided on the second belt portion C2a. The pair of second conveyor devices C2 transports the workpieces W in an orientation in which the longitudinal direction of the workpieces W is perpendicular to the transport direction in a plan view.

[0034] <How to separate workpieces> Next, a method for separating the workpieces W will be described together with the main action of the workpiece separating device 11. The method for separating the workpieces W includes a separating step of separating the workpieces W using the transport table 12 and the rotating body 13.

[0035] 3, the workpiece W is carried by the first conveyor device C1 onto the first placement surface 12a of the carry-in section 14 of the transfer table 12. At this time, since the first placement surface 12a in this embodiment is the downwardly inclined surface described above, the workpiece W moves downward due to its own weight.

[0036] As shown in Fig. 4, the workpiece W that has reached the intermediate conveying section 16 of the conveying table 12 is sent out by the sending member 19 of the rotating body 13 toward the discharge section 15 of the conveying table 12. At this time, as shown in Fig. 5, the sending surface 19a of the sending member 19 of the rotating body 13 is in contact with the workpiece W on the second loading surface 12b, with the sending surface 19a being disposed at a first angle θ1 that exceeds 90° with respect to the second loading surface 12b of the conveying table 12. Therefore, a force can be applied to the workpiece W from the sending surface 19a of the sending member 19 in the direction indicated by the outline arrow of the two-dot chain line in Fig. 5.

[0037] According to this configuration, when the workpiece W is delivered by the delivery surface 19a of the delivery member 19 of the rotating body 13, a force that resists gravity can be applied to the workpiece W. This reduces the frictional force of the workpiece W against the second placement surface 12b of the conveyance table 12.

[0038] As shown in FIG. 7, the workpieces W that have been moved onto the third loading surface 12c of the discharge section 15 of the conveyance table 12 are carried out from the conveyance table 12 by the second conveyor device C2. In the sorting process of the method for sorting the workpieces W, the workpieces W are sorted by switching between a transport state in which the workpieces W are transported, as shown in FIGS. 4 and 7, and a discharge state in which the workpieces W are discharged from the transport path, as shown in FIG. 8. The sorting process can be used, for example, as a process for sorting good workpieces and defective workpieces based on the inspection results of the workpieces W inspected upstream of the workpiece sorting device 11. In the sorting process, for example, defective workpieces are discharged from the discharge section 17 of the conveyance table 12.

[0039] Next, the operation and effects of this embodiment will be described. (1) The rotating body 13 of the workpiece sorting device 11 includes a rotation drive unit 18 having a rotation shaft 18a, and a feed member 19 that is provided on the rotation drive unit 18 and feeds out the workpieces W. The feed member 19 of the rotating body 13 has a feed surface 19a that comes into contact with the workpieces W. When viewed from the direction of the rotation axis of the rotating body 13, the feed surface 19a of the feed member 19 comes into contact with the workpieces W on the second loading surface 12b in a state where it is disposed at an angle of more than 90° with respect to the second loading surface 12b, for example.

[0040] As described above, this configuration can reduce the frictional force of the workpiece W against the second placement surface 12b of the transfer table 12. Therefore, it is possible to suppress the influence on the quality of the workpiece W.

[0041] (2) In the workpiece sorting device 11, the sending surface 19a of the sending member 19 is an inclined surface that inclines in the rotation direction of the rotating body 13 as it approaches the outer circumferential end of the rotating body 13. In this case, it is possible to further increase the force acting on the workpiece W against gravity, as described above. This makes it possible to further reduce the friction force of the workpiece W against the second loading surface 12b of the conveying table 12. Therefore, it is possible to further suppress the impact on the quality of the workpiece W.

[0042] (3) In the workpiece sorting device 11, the second angle θ2 is preferably within a range of 1° or more and 55° or less. When the second angle θ2 is 1° or more, the above-mentioned frictional force can be further reduced. When the second angle θ2 is 55° or less, the force for sending the workpieces W toward the discharge section 15 can be ensured, thereby stabilizing the transport of the workpieces W.

[0043] (4) In the workpiece sorting device 11, the third loading surface 12c has a discharge section 15 that slopes upward toward the downstream side. In this case, for example, the workpieces W can be easily transferred to the second conveyor device C2 disposed adjacent to the downstream side of the transport table 12.

[0044] (5) The workpieces W to be separated by the workpiece separating device 11 are long and sized, and are transported in a position where the longitudinal direction of the workpieces W is perpendicular to the transport direction. For example, such long workpieces W can be transported using the transport table 12 and the rotating body 13. Furthermore, when the workpieces W are tubular glass, scratches tend to occur on the workpieces W due to the frictional force of the workpieces W against the second mounting surface 12b of the transport table 12. The workpiece separating device 11 can reduce the frictional force of the workpieces W against the second mounting surface 12b of the transport table 12, thereby reducing the occurrence of scratches on the tubular glass. This reduces the impact on the quality of the tubular glass.

[0045] <Example of change> The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other within the scope of technical compatibility.

[0046] The cross-sectional shape of the long workpiece W is not limited to a circular shape, but may be, for example, an elliptical shape, a polygonal shape, or the like. The overall shape of the workpiece W is not limited to an elongated shape, but may be, for example, spherical, polygonal, or the like.

[0047] The material of the workpiece W is not limited to glass, but may be, for example, metal, resin, ceramics, etc. The method for separating the workpieces W can also be changed to a method for transporting the workpieces W that includes a transport step for transporting the workpieces W without separating the workpieces W. That is, the workpiece separating device 11 can also be used as a workpiece transport device. In this case, the transport table 12 is configured to be able to be shifted between a transport state and a discharge state, but the transport table 12 can also be configured not to be able to be shifted from the transport state to the discharge state.

[0048] The first loading surface 12a of the loading section 14 of the transport table 12 of the work sorting device 11 may be a horizontal surface. Also, the third loading surface 12c of the loading section 14 of the transport table 12 of the work sorting device 11 may be a horizontal surface. The second loading surface 12b of the intermediate transport section 16 for the work W may be an inclined surface.

[0049] The rotating bodies 13 of the workpiece sorting device 11 are arranged in pairs along a direction perpendicular to the conveying direction, but the number of rotating bodies 13 may be one or three or more. The transport tables 12 of the workpiece sorting device 11 are arranged in pairs along a direction perpendicular to the conveying direction, but the number of transport tables 12 may be one or three or more.

[0050] The first conveyor devices C1 of the workpiece sorting device 11 are arranged in a pair along a direction perpendicular to the conveying direction, but the number of first conveyor devices C1 may be one or three or more. The second conveyor devices C2 of the workpiece sorting device 11 are arranged in a pair along a direction perpendicular to the conveying direction, but the number of second conveyor devices C2 may be one or three or more.

[0051] The number of the sending members 19 on the rotor 13 of the workpiece sorting device 11 can be changed as appropriate depending on, for example, the size of the workpieces W. The shape of the delivery member 19 on the rotor 13 of the workpiece sorting device 11 is not limited to the above embodiment. For example, the delivery surface 19a of the delivery member 19 may be a delivery surface other than the inclined surface of the above embodiment.

[0052] For example, the delivery surface 19a of the delivery member 19 in the rotor 13 shown in FIGS. 9 and 10 is a non-inclined surface that does not have the second angle θ2 of the above embodiment. Even in the workpiece sorting device 11 equipped with this rotor 13, a force can be applied to the workpiece W from the delivery surface 19a of the delivery member 19 in the direction indicated by the outline arrow with two dots and dashes in FIG. 10. That is, even in the rotor 13 of this modified example, when the delivery surface 19a of the delivery member 19 of the rotor 13 delivers the workpiece W, a force that resists gravity can be applied to the workpiece W. The delivery surface 19a of the delivery member 19 in the rotor 13 of this modified example is a surface defined by the third angle θ3 shown in FIG. 11. The third angle θ3 is an elevation angle between the horizontal line and the line connecting the rotation center P1 of the rotation drive unit 18 and the end point P2 of the rotation direction on the outer periphery of the delivery member 19. The third angle θ3 is, for example, preferably equal to or less than 7°, and more preferably equal to or less than 5°.

[0053] As shown in FIG. 12, the rotating body 13 may be positioned so that the center of rotation of the rotating body 13 is located upstream of the center of the conveyance table 12 in the conveyance direction of the workpiece W. In FIG. 12, a perpendicular line L1 passing through the center of the conveyance table 12 is indicated by a dashed line. This change in the position of the rotating body 13 will be described with reference to FIG. 13. In FIG. 13, the rotation axis 18a of the rotation drive unit 18 is moved from the position indicated by the dashed line to the position indicated by the solid line. By changing the position of the rotation axis 18a of the rotation drive unit 18 in this way, the first angle θ1 between the delivery surface 19a of the delivery member 19 and the second placement surface 12b of the conveyance table 12 can be increased. This means that the force acting on the workpiece W against gravity can be increased. This reduces the frictional force of the workpiece W against the second placement surface 12b of the conveyance table 12. This further reduces the impact on the quality of the workpiece W. [Explanation of symbols]

[0054] 11...Work sorting device 12...Transport platform 12b...Second placement surface 13...Rotating body 15...Export section 18...Rotation drive unit 18a...Rotation axis 19...Feed-out member 19a...sending surface P1: Center of rotation P2…End point W…Work θ1…first angle θ2…Second angle

Claims

1. a conveyance table having a placement surface on which a workpiece is placed; a rotating body that rotates and drives the workpiece on the placement surface to convey the workpiece along the placement surface, The rotating body includes a rotation drive unit having a rotation shaft; a feed member provided in the rotation drive unit and configured to feed the workpiece; the delivery member has a delivery surface that comes into contact with the workpiece, A workpiece conveying device in which the feed surface of the feed member contacts the workpiece on the loading surface while being positioned at an angle of more than 90° relative to the loading surface of the conveying table when viewed from the direction of the rotation axis of the rotating body.

2. The workpiece transport device according to claim 1 , wherein the rotating body is disposed so that the center of rotation of the rotating body is located upstream of the center of the transport table in the transport direction of the workpiece.

3. 3. The workpiece transport device according to claim 1, wherein the feed surface of the feed member is an inclined surface that inclines in the rotation direction of the rotating body as it approaches the outer circumferential edge of the feed member, when viewed from the rotation axis direction of the rotating body.

4. 4. The workpiece transport device according to claim 3, wherein, when a straight line connecting the rotation center of the rotation drive unit and an end point of the rotation direction on the outer circumferential edge of the feed member is taken as a horizontal line, the angle at which the feed surface is inclined is in the range of 1° or more and 55° or less in terms of a depression angle formed with the end point as a vertex and the horizontal line.

5. 5. The workpiece transport device according to claim 1, wherein the transport table has a discharge section in which the placement surface is inclined upward as it approaches the downstream side.

6. The workpiece transport device according to claim 1 , wherein the workpiece is an elongated workpiece, and the workpiece is transported in an orientation in which a longitudinal direction of the workpiece is perpendicular to a transport direction.

7. The workpiece transport device according to claim 6, wherein the workpiece is a glass tube.

8. a conveyance table having a placement surface on which a workpiece is placed; a rotating body that conveys the work on the placement surface along the placement surface by rotational drive, The conveying table is a work sorting device that can be displaced between a conveying state in which the work is conveyed and a discharge state in which the work is discharged from a conveying path, The rotating body includes a rotation drive unit having a rotation shaft; a feed member provided in the rotation drive unit and configured to feed the workpiece; the delivery member has a delivery surface that comes into contact with the workpiece, A work sorting device in which the feed surface of the feed member contacts the work on the loading surface while being positioned at an angle of more than 90° relative to the loading surface of the conveying table when viewed from the direction of the rotation axis of the rotating body.

9. a conveyance table having a placement surface on which a workpiece is placed; a rotating body that rotates and drives the workpiece on the placement surface to transport the workpiece along the placement surface, The rotating body includes a rotation drive unit having a rotation shaft; a feed member provided in the rotation drive unit and configured to feed the workpiece; the delivery member has a delivery surface that comes into contact with the workpiece, A method for transporting a workpiece, in which the feed surface of the feed member contacts the workpiece on the loading surface while being positioned at an angle of more than 90° relative to the loading surface of the transport table when viewed from the direction of the rotation axis of the rotating body.

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