Paper tube recovery system and paper tube recovery device

Abstract

To reduce a risk of deformation or damage to a paper tube by reducing an impact applied to the paper tube when the paper tube is put into a collection box.SOLUTION: In a paper tube recovery system, empty paper tubes discharged from a creel robot are recovered by a paper tube recovery device. The creel robot has a mounting plate on which the empty paper tubes are placed, a paper tube receiving stand 53 including an outlet through which the empty paper tubes can be discharged, and a tilting mechanism 54 that tilts the paper tube receiving stand 53. The paper tube recovery device has a recovery box that recovers the empty paper tubes discharged from the paper tube receiving table 53, and a guide device that guides the empty paper tubes discharged from the paper tube receiving table to a recovery box. The guide device has a guide section 222 including a bottom plate that rolls the empty paper tubes discharged from the paper tube receiving table and guides them to the recovery box, and a guide section drive mechanism that tilts the guide section 222 to bring it closer to the paper tube receiving table 53 so that an angle between a bottom plate and a mounting plate of the paper tube receiving table 53, which is inclined at a recovery position, is within a range of 180 degrees ± a predetermined angle.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a paper tube recovery system and a paper tube recovery device. [Background technology]

[0002] Regarding the technology of a paper tube recovery system and a paper tube recovery device for recovering paper tubes of yarn supply packages, Patent Document 1 discloses a technology in which an inclined platform that engages with a roller of a roller lever is provided at a predetermined height by a stand near a paper tube recovery box, and when a yarn supply exchange device descends to receive a yarn supply package, the roller lever is rotated clockwise to tilt the paper tube receiving platform on which the paper tube is placed forward, thereby dropping the paper tube into the recovery box from a predetermined height position. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 06-056349 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional technology, when the paper tube is dropped into the collection box from a predetermined height position, the paper tube collides with the collection box at high speed, and the paper tube dropped into the collection box is subjected to a large impact, which may cause the paper tube to be deformed or damaged. Since the paper tube dropped into the collection box may be reused, there is room for improvement in the collection of the paper tubes.

[0005] The present invention has been made in consideration of the above problems, and aims to provide a paper tube collection system and a paper tube collection device that can reduce the impact applied to the paper tube when it is inserted into a collection box, thereby reducing the risk of deformation or damage to the paper tube. [Means for solving the problem]

[0006] (1) The paper tube recovery system of the present invention is a creel robot that supplies a yarn supply package in which the yarn is wound around a paper tube and collects an empty paper tube after the yarn is unwound; A paper tube recovery device that recovers the empty paper tube discharged from the creel robot; Equipped with The creel robot includes: A paper tube receiving table capable of accommodating the empty paper tube and including a placement plate for placing the empty paper tube and an outlet for discharging the empty paper tube; A tilting mechanism that tilts the paper tube receiving base so that the empty paper tube discharged from the paper tube receiving base is discharged from a predetermined height position at a recovery position where the empty paper tube can be recovered by the paper tube recovery device. The paper tube recovery device includes: A collection box for collecting the empty paper tubes discharged from the paper tube receiving base; a guide device that guides the empty paper tube discharged from the paper tube receiving base to the collection box, The guiding device is A guide unit including a guide plate that rolls the empty paper tube discharged from the paper tube receiving base and guides it to the collection box; The guide section has a guide section drive mechanism that tilts the guide section so that the angle between the guide plate and the mounting plate of the paper tube receiving table tilted at the recovery position is within the range of 180 degrees ± a predetermined angle, thereby moving the guide section closer to the paper tube receiving table.

[0007] According to the paper tube recovery system described in (1) above, the empty paper tube discharged from the paper tube receiving table is decelerated by friction with the guide plate when it is guided by the guide plate and collected in the collection box. Therefore, the moving speed of the empty paper tube when it rolls on the guide plate is smaller than the falling speed when the empty paper tube is directly discharged from directly above the collection box. As a result, the impact given to the empty paper tube when it is collected in the collection box is smaller, so it is possible to reduce the risk of the empty paper tube being deformed or damaged.

[0008] Here, the angle formed by the guide plate and the placement plate of the paper tube receiving table inclined at the collection position is preferably in the range of 180 degrees ± a predetermined angle, and the predetermined angle is preferably in the range of 20 degrees to 60 degrees. That is, the angle formed by the guide plate and the placement plate is preferably in the range of a lower limit angle obtained by subtracting a predetermined angle from 180 degrees, and an upper limit angle obtained by adding a predetermined angle to 180 degrees. Therefore, the predetermined angle includes 0 degrees, that is, the angle formed by the guide plate and the placement plate includes "180 ± 0 degrees". Furthermore, the predetermined angle is preferably in the range of 20 degrees to 60 degrees. Specifically, the lower limit angle formed by the guide plate and the paper tube receiving table is preferably 120 degrees, and more preferably 160 degrees. On the other hand, the upper limit angle formed by the guide plate and the paper tube receiving table is preferably 240 degrees, and more preferably 200 degrees.

[0009] More specifically, when the angle between the guide plate and the mounting plate is 180 degrees, the mounting plate and the guide plate are aligned in a straight line at the same inclination angle with respect to the vertical direction. In other words, the guide plate and the mounting plate in this case have the same gradient.

[0010] Also, when the specified angle is smaller than 180 degrees, i.e., "180 degrees - specified angle", the inclination angle of the guide plate is smaller than the inclination angle of the placement plate. This means that the gradient of the guide plate is smaller than the gradient of the placement plate. Therefore, when the angle between the guide plate and the placement plate is 120 degrees, the gradient of the guide plate is the smallest, and when it is 160 degrees, the gradient of the guide plate is somewhat smaller.

[0011] On the other hand, when the specified angle is greater than 180 degrees, i.e., "180 degrees + specified angle," the inclination angle of the guide plate is greater than the inclination angle of the placement plate of the paper tube receiving table. This means that the gradient of the guide plate is greater than the gradient of the placement plate. Therefore, when the angle between the guide plate and the placement plate is 240 degrees, the gradient of the guide plate is the greatest, and when it is 200 degrees, the gradient of the guide plate is somewhat greater.

[0012] In addition, the specified angle in the range of "180 degrees ± the specified angle" between the guide plate and the loading plate needs to be a range of the inclination angle (gradient) of the loading plate from the vertical angle to the horizontal angle. This is because if the inclination angle (gradient) of the loading plate is a vertical angle, the empty paper tube cannot be decelerated by the frictional force of the loading plate. Also, if the inclination angle (gradient) of the loading plate is a horizontal angle, there is a high possibility that the empty paper tube will be stopped by the loading plate.

[0013] (2) In the paper tube recovery system of the present invention, The tilt mechanism includes: A support mechanism for supporting the paper tube support in a tiltable manner; A first engagement member is provided on the support mechanism and tilts the paper tube support, The guide unit drive mechanism includes: a guide portion support mechanism that supports the guide portion so as to be tiltable by a link mechanism; It is preferable that the link mechanism further comprises a second engagement member provided at a tip end of the follower of the link mechanism and slidingly engaged with the first engagement member by rotation of the tip end of the follower when the guide portion is tilted.

[0014] According to the paper tube recovery system described in (2) above, when the guide is tilted, the second engagement member slides and engages with the first engagement member of the tilting mechanism, thereby tilting the paper tube receiving stand supported by the receiving stand support mechanism. As a result, the empty paper tube held on the paper tube receiving stand moves from the paper tube receiving stand to the guide, slides down the guide plate of the guide, and is dropped into the recovery box. This allows the paper tube receiving stand and recovery box of the creel robot to be used with the existing configuration.

[0015] (3) In the paper tube recovery system of the present invention, The collection box is A frame capable of accommodating a plurality of the empty paper tubes and having an opening formed on an upper surface for collecting the empty paper tubes; A bottom member that is loosely fitted in the frame and on which the empty paper tube collected from the opening is placed; It is preferable that the bottom member has a bottom member lifting mechanism that supports the bottom member so that it can be raised and lowered, and when the empty paper tube is not placed on the bottom member, raises the bottom member to an initial height position and lowers the bottom member in accordance with the weight of the empty paper tube placed on the bottom member.

[0016] According to the paper tube recovery system described in (3) above, since the empty paper tube is received by the bottom member located above the bottom surface of the recovery box, it is possible to catch the empty paper tube before it falls too fast, rather than receiving it on the bottom surface of the recovery box. This makes it possible to prevent deformation of the empty paper tube, and since the bottom member descends according to the weight of the empty paper tube placed, the maximum storage capacity corresponding to the capacity of the frame is not significantly reduced.

[0017] (4) In the paper tube recovery system of the present invention, It is preferable that the creel stand is disposed along a path of the creel robot, and the supply of the yarn packages and the collection of the empty paper tubes are performed by the creel robot.

[0018] According to the paper tube recovery system described in (4) above, even when a large number of empty paper tubes are recovered from the creel stand, deformation of the empty paper tubes can be sufficiently prevented.

[0019] (5) The paper tube recovery device of the present invention is A paper tube recovery device that recovers an empty paper tube discharged from a predetermined height position by a creel robot having a paper tube receiving table that can store an empty paper tube after a yarn has been unwound, the paper tube receiving table including a placement plate for placing the empty paper tube and an outlet through which the empty paper tube can be discharged, and a tilting mechanism that tilts the paper tube receiving table so that the empty paper tube is discharged from the predetermined height position at a recovery position where the empty paper tube is recovered, A collection box for collecting the empty paper tubes discharged from the paper tube receiving base; a guide device that guides the empty paper tube discharged from the paper tube receiving base to the collection box, The guiding device is A guide unit including a guide plate that rolls the empty paper tube discharged from the paper tube receiving base and guides it to the collection box; The guide section has a guide section drive mechanism that tilts the guide section so that the angle between the guide plate and the mounting plate of the paper tube receiving table tilted at the recovery position is within the range of 180 degrees ± a predetermined angle, thereby moving the guide section closer to the paper tube receiving table.

[0020] According to the paper tube recovery device of (5) above, when the empty paper tube is guided by the guide plate and recovered into the recovery box, the empty paper tube is decelerated by friction with the guide plate. Therefore, the moving speed of the empty paper tube is slower than when it is discharged directly from directly above the recovery box. As a result, the impact given to the empty paper tube when it is recovered into the recovery box is smaller, so it is possible to reduce the risk of deformation or damage to the empty paper tube.

[0021] (6) In the paper tube recovery device of the present invention, The tilt mechanism includes: A support mechanism for supporting the paper tube support in a tiltable manner; A first engagement member is provided on the support mechanism and tilts the paper tube support, The guide unit drive mechanism includes: a guide portion support mechanism that supports the guide portion in a tiltable manner; It is preferable that the guide portion has a second engagement member that is provided on the guide portion support mechanism and that slides and engages with the first engagement member by inclination of the guide portion.

[0022] According to the paper tube recovery device described in (6) above, when the guide is tilted, the second engagement member slides and engages with the first engagement member of the tilting mechanism, thereby tilting the paper tube receiving stand supported by the receiving stand support mechanism. As a result, the empty paper tube held on the paper tube receiving stand moves from the paper tube receiving stand to the guide, slides down the guide plate of the guide, and is dropped into the recovery box. This allows the paper tube receiving stand and recovery box of the creel robot to be used with the existing configuration.

[0023] (7) In the paper tube recovery device of the present invention, The collection box is A frame capable of accommodating a plurality of the empty paper tubes and having an opening formed on an upper surface for collecting the empty paper tubes; A bottom member that is loosely fitted in the frame and on which the empty paper tube collected from the opening is placed; It is preferable that the bottom member has a bottom member lifting mechanism that supports the bottom member so that it can be raised and lowered, and when the empty paper tube is not placed on the bottom member, raises the bottom member to an initial height position and lowers the bottom member in accordance with the weight of the empty paper tube placed on the bottom member.

[0024] According to the paper tube recovery device described in (7) above, since the empty paper tube is received by the bottom member positioned above the bottom surface, it is possible to receive the empty paper tube before its moving speed increases, rather than receiving it on the bottom surface of the recovery box. This makes it possible to prevent deformation of the empty paper tube, and since the bottom member descends according to the weight of the empty paper tube placed, the maximum storage capacity corresponding to the capacity of the frame is not significantly reduced.

[0025] The paper tube recovery system according to the present invention may be configured only with the configuration described in the paper tube recovery system described in (1) above, or may be an arbitrary combination of the configuration described in (1) above and any of the configurations described in (2) to (4) above, within a range in which consistency can be achieved. When combining the configuration described in (1) above with the configuration described in any of the configurations described in (2) to (4) above, it is also possible to combine all or a part of the configuration described in (1) above with all or a part of the configuration described in (2) to (4) above, within a range in which consistency can be achieved. In addition, the paper tube recovery device according to the present invention may be configured only with the configuration described in the paper tube recovery device described in (5) above, or may be an arbitrary combination of the configuration described in (5) above with any of the configurations described in (6) and (7) above, within a range in which consistency can be achieved. When combining the configuration described in (5) above with any of the configurations described in (6) and (7) above, it is also possible to combine all or part of the configuration described in (5) above with all or part of the configurations described in (6) and (7) above to the extent that consistency can be achieved. Effect of the Invention

[0026] According to the present invention, it is possible to provide a paper tube collection system and a paper tube collection device that can reduce the impact applied to the paper tube when it is inserted into a collection box, thereby reducing the risk of the paper tube being deformed or damaged. [Brief description of the drawings]

[0027] [Figure 1] 1 is a plan view showing an example of a schematic overall layout of a false twisting system; [Diagram 2] FIG. 1 is an example of a perspective view showing a paper tube recovery system. [Diagram 3] 13A and 13B are diagrams for explaining a discharge mechanism of the creel robot. [Figure 4] 5A and 5B are diagrams for explaining the tilting of the paper tube receiving table by the tilting mechanism, in which (A) shows the paper tube receiving table in the take-in position and (B) shows the paper tube receiving table in the discharge position. [Diagram 5] 1A and 1B are diagrams showing the configuration of a guide device, in which (A) is in a standby position and (B) is in a recovery position. [Figure 6] FIG. 4 is a diagram showing a configuration of a guide unit. [Figure 7] 13A and 13B are diagrams for explaining sliding engagement between an engagement member of a guide drive mechanism and an engagement member of a creel robot. [Figure 8] FIG. 2 is a diagram for explaining a configuration of a collection box. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0029] (Overview of false twist processing system 1) FIG. 1 is an example of a plan view showing a schematic diagram of the overall arrangement of the false twist processing system 1. In the false twist processing system 1, a yarn supply package in which yarn is wound around a cylindrical paper tube is supplied to the creel stand 30 and the creel stand 30A by a creel robot 50 moving on a linear rail 20. In addition, the creel robot 50 collects empty paper tubes (hereinafter referred to as empty paper tubes) around which yarn is not wound from the creel stands 30 and 30A. An example of the "yarn" is a synthetic fiber such as polyester. A "paper supply package" is a winding-type package for supplying yarn (synthetic fiber) used in a manufacturing process such as a false twist processing machine. The paper supply package is composed of a cylindrical paper tube in the center and the yarn wound around the paper tube, and is held by inserting a peg of the creel stand 30 and 30A into the inside of the paper tube. The rail 20 corresponds to the "travel path" of the present invention.

[0030] The creel stands 30 and 30A are disposed on either side of the rail 20, and each extends along the rail 20. A raw yarn storage section 26 is provided at a position adjacent to the creel stand 30A in the longitudinal direction. The raw yarn storage section 26 temporarily stores yarn supply packages from the conveying devices throughout the factory. The stored yarn supply packages are taken out by the creel robot 50 and transported to the creel stands 30 and 30A.

[0031] A machine stand 10 is provided at a position adjacent to the creel stand 30 on the opposite side of the rail 20. Although not shown, a similar machine stand is also provided at a position adjacent to the creel stand 30A. The machine stand 10 mainly includes, for example, a false twisting machine 12 and a winding machine 14. A yarn unwound from a yarn supply package is supplied to the false twisting machine 12 from the creel stand 30. The false twisting machine 12 false twists the yarn unwound from the yarn supply package. The false twisted yarn is wound by the winding machine 14.

[0032] After all the yarn has been unwound from the yarn supply package, the empty paper tubes are collected by the creel robot 50 from the creel stand 30. The collected empty paper tubes are carried by the creel robot 50 to the paper tube recovery device 21 provided adjacent to the creel stand 30 in the longitudinal direction, and discharged to the paper tube recovery device 21. In the paper tube recovery device 21, the empty paper tubes are recovered into a recovery box 23 via a guide device 22. The paper tube recovery device 21 and the creel robot 50 constitute a paper tube recovery system 1A.

[0033] Fig. 2 is an example of a perspective view that shows a schematic diagram of the paper core recovery system 1A. In Fig. 2, in addition to the paper core recovery device 21 and the creel robot 50 that constitute the paper core recovery system 1A, the creel stand 30 is also shown.

[0034] The creel stand 30 is configured with multiple pillars 31 extending vertically and arranged in two rows along the rail 20, and multiple partition plates 32 are supported at predetermined intervals by these pillars 31. Of the multiple pillars 31, the pillar 31 closest to the rail 20 is provided with a peg (not shown) for supporting a paper tube.

[0035] The creel robot 50 has a main body 51 and a discharge mechanism 52. In addition, although not shown, the creel robot 50 is capable of ascending and descending relative to the main body 51 and has a mechanism for removing empty paper tubes from the pegs of the creel stand 30. The creel robot 50 transfers the empty paper tubes removed from the creel stand 30 to the paper tube recovery device 21 using this mechanism. When the creel robot 50 transfers the empty paper tube to the paper tube recovery device 21, it discharges the empty paper tube to the paper tube recovery device 21 using the discharge mechanism 52.

[0036] 3 is a diagram for explaining the discharge mechanism 52 of the creel robot 50. The discharge mechanism 52 has a paper core receiving stand 53 and a tilt mechanism 54, and is provided in the main body 51 of the creel robot 50.

[0037] The cardboard tube receiving stand 53 has side panels 532 provided on three sides of a rectangular mounting plate 531 so as to be approximately perpendicular to the mounting plate 531, and is configured to be open at the top. The side portion on one side of the mounting plate 531 where the side panel 532 is not provided is open, and this open side portion is called a discharge port 53A.

[0038] The tilting mechanism 54 is provided on the main body 51. The tilting mechanism 54 supports the paper tube receiving stand 53 so that the mounting plate 531 can be tilted between a position along a substantially horizontal direction (hereinafter referred to as a take-in position) and a position in which the mounting plate 531 is tilted from the horizontal direction (hereinafter referred to as a discharge position). The discharge port 53A of the paper tube receiving stand 53 supported in this manner faces a substantially horizontal direction in the take-in position so that the empty paper tubes stored in the paper tube receiving stand 53 are not discharged from the discharge port 53A, and faces diagonally downward in the discharge position so that the empty paper tubes stored in the paper tube receiving stand 53 are discharged from the discharge port 53A.

[0039] The tilt mechanism 54 has a receiving platform support mechanism 541 and a first engagement member 542. The receiving platform support mechanism 541 supports the paper tube receiving platform 53 from below. The receiving platform support mechanism 541 is rotatable together with the paper tube receiving platform 53 relative to the main body 51, centering on a rotation shaft 55 provided below the discharge port 53A. With this configuration, the paper tube receiving platform 53 is rotatable between the take-in position and the discharge position.

[0040] The receiving tray support mechanism 541 has an arm 541A extending in a direction away from the discharge port 53A. The first engagement member 542 is provided at the tip of the arm 541A. The first engagement member 542 is a cylinder extending perpendicular to the longitudinal direction of the arm 541A and along the horizontal direction. The receiving tray support mechanism 541 rotates around the rotation axis 55 so that the discharge port 53A faces downward when the first engagement member 542 is pressed downward by the paper tube recovery device 21 (more specifically, the second engagement member 223C illustrated in FIG. 5 and the like described later). Then, the paper tube receiving tray 53 supported by the receiving tray support mechanism 541 also rotates.

[0041] FIG. 4 is a diagram for explaining the tilt of the paper tube receiving table 53 by the tilting mechanism 54, in which (A) shows the paper tube receiving table 53 in the take-in position, and (B) shows the paper tube receiving table 53 in the discharge position.

[0042] The creel robot 50, with the paper tube receiving stand 53 in the take-in position, stores the empty paper tube taken out from the creel stand 30 in the paper tube receiving stand 53 from the open top, and moves to the paper tube recovery device 21 in the take-in position. The paper tube recovery device 21 has a rotating second engagement member 223C, which will be described in detail later. When the creel robot 50 is in the recovery position, the first engagement member 542 of the paper tube receiving stand 53 is located on the rotation path of the second engagement member 223C. Then, at the recovery position, the first engagement member 542 is pressed in the direction shown by the white arrow in FIG. 4(A) by the rotating second engagement member 223C. As a result, the paper tube receiving stand 53 is tilted together with the tilting mechanism 54, and the paper tube receiving stand 53 is in the discharge position. When the paper tube receiving stand 53 assumes the discharge position, the empty paper tubes housed in the paper tube receiving stand 53 roll due to gravity and are discharged from the discharge port 53A to the paper tube recovery device 21.

[0043] When the pressing force on the first engagement member 542 is removed, the paper tube receiving stand 53 returns from the discharge position to the take-in position. The rotating shaft 55 is provided on the discharge port 53A side of the paper tube receiving stand 53. When the first engagement member 542 is pressed, the tilting mechanism 54, which maintains the take-in position, tilts so that the discharge port 53A faces downward. When the pressing force is removed, the tilting mechanism 54 returns to the take-in position due to the weight of itself and the paper tube receiving stand 53.

[0044] (Description of the paper tube recovery device 21) The paper tube recovery device 21 has a guide device 22 and a recovery box 23 (see Figs. 1 and 2). Fig. 5 is a diagram showing the configuration of the guide device 22, where (A) is the standby position and (B) is the recovery position. The standby position is the position when the paper tube recovery device 21 is not recovering an empty paper tube. The recovery position is the position when the paper tube recovery device 21 is recovering an empty paper tube.

[0045] The guiding device 22 rolls and guides the empty paper tubes discharged from the paper tube receiving stand 53 at a predetermined height at the empty paper tube recovery position of the paper tube recovery device 21 to the recovery box 23. The guiding device 22 has a stand 221, a guide unit 222, and a guide unit drive mechanism 223.

[0046] The stand 221 extends vertically and supports each part of the guide device 22. The stand 221 has a height that allows the guide part 222 provided at the upper end part thereof to be connected to the discharge mechanism 52 of the creel robot 50.

[0047] The guide section 222 is provided at the upper end of the stand 221. The guide section 222 rolls the empty paper tubes discharged from the paper tube receiving stand 53 and guides them to the collection box 23. Since the paper tube receiving stand 53 is located at a predetermined height, the empty paper tubes discharged from the paper tube receiving stand 53 fall from the predetermined height. By rolling the empty paper tubes on the guide section 222, the falling speed is suppressed compared to the case of free fall. As a result, the impact received by the empty paper tubes when collected in the collection box 23 is reduced, and the risk of the empty paper tubes being deformed or damaged can be reduced.

[0048] 6 is a diagram showing the configuration of the guide section 222. The guide section 222 has a first chute 222A and a second chute 222B.

[0049] The first chute 222A is configured such that side panels 222A2 are provided on three sides of a rectangular bottom panel 222A1 so as to be approximately perpendicular to the bottom panel 222A1, and the top is open. The side portion on one side of the placement plate 531 on which the side panel 222A2 is not provided is open, and this open portion is called the discharge port 222A3. The first chute 222A is supported in a position inclined from the horizontal direction so that the discharge port 222A3 faces diagonally downward so that the empty paper tube received from the second chute 222B does not stop. The guide device 22 is installed so that the discharge port 222A3 of the first chute 222A is located approximately directly above the collection box 23.

[0050] The second chute 222B is configured such that side panels 222B2 are provided on each of the long sides of a rectangular bottom panel 222B1 so as to be approximately perpendicular to the bottom panel 222B1, and the top is open. The second chute 222B is inclined so that one open side portion (hereinafter referred to as an inlet) is located higher than the other side portion (hereinafter referred to as an outlet), and is supported so that the outlet is located directly above the first chute 222A. The empty paper tube discharged from the paper tube receiving base 53 is taken into the second chute 222B from the inlet of the second chute 222B, rolls on the bottom panel 222B1, and is discharged from the outlet of the second chute 222B to the first chute 222A. The inclination angle of the second chute 222B is changed by the guide drive mechanism 223 described later between the standby position and the collection position. The bottom panel 222B1 corresponds to the "guide panel" of the present invention.

[0051] Returning to FIG. 5, the guide drive mechanism 223 supports the guide 222 so that it can be tilted. In the standby position, the guide drive mechanism 223 has a tilt member 223A that extends in the vertical direction. The lower end of the tilt member 223A is provided on the stand 221, and the tilt member 223A can be tilted with the lower end as a fulcrum. In the recovery position, the longitudinal direction of the tilt member 223A is tilted with respect to the vertical direction.

[0052] The upper end of the tilting member 223A supports the second chute 222B of the guide section 222 by the guide section support mechanism 223B. The guide section support mechanism 223B has a link mechanism, and allows the second chute 222B to tilt in accordance with the tilt of the tilting member 223A. The guide section support mechanism 223B supports the second chute 222B so that the tilt angle of the longitudinal direction of the second chute 222B relative to the vertical direction is larger in the recovery position than in the standby position. This tilting member 223A corresponds to the "follower" of this invention.

[0053] A second engagement member 223C is provided on the upper end of the inclined member 223A. When the guiding device 22 transitions from the standby position to the collection position, the second engagement member 223C slides relative to the first engagement member 542 (see FIG. 4) of the creel robot 50 and presses the first engagement member 542 (hereinafter referred to as sliding engagement).

[0054] FIG. 7 is a diagram for explaining the sliding engagement between the second engagement member 223C of the guide drive mechanism 223 and the first engagement member 542 of the creel robot 50. As shown in FIG.

[0055] The paper tube receiving stand 53 of the creel robot 50 that has moved to the recovery position is in a take-in position, and the guide device 22 of the paper tube recovery device 21 is in a standby position. In this state, the guide device 22 drives the guide drive mechanism 223 to move to the recovery position. The first engagement member 542 of the paper tube receiving stand 53 is located on the trajectory of the second engagement member 223C of the guide drive mechanism 223, and is pressed by the rotating second engagement member 223C. This causes the paper tube receiving stand 53 to tilt. As a result, the placement plate 531 of the paper tube receiving stand 53 and the bottom plate 222B1 of the second chute 222B are aligned in a substantially straight line. At this time, the angle between the placement plate 531 and the bottom plate 222B1 is in the range of "180 degrees ± a predetermined angle".

[0056] As a result, the empty paper tubes stored in the paper tube receiving stand 53 roll from the paper tube receiving stand 53 through the second chute 222B to the first chute 222A, and are collected in the collection box 23 (see FIG. 2, etc.) located below the discharge opening of the first chute 222A. In this way, by having the empty paper tubes discharged from the paper tube receiving stand 53 pass through the guide section 222 and collected in the collection box 23, the rolling speed of the empty paper tubes is reduced compared to when they are discharged directly from the paper tube receiving stand 53 without passing through the guide section 222, and the impact when they are collected in the collection box 23 can be reduced. Furthermore, by changing the rolling direction of the empty paper tubes by the first chute 222A, the rolling speed of the empty paper tubes is further reduced, and the impact when they are collected in the collection box 23 can be further reduced.

[0057] Here, the predetermined angle in the "range of 180 degrees ± a predetermined angle" between the placement plate 531 and the bottom plate 222B1 is preferably in the range of 20 degrees to 60 degrees. That is, the angle between the placement plate 531 and the bottom plate 222B1 is preferably in the range of a lower limit angle obtained by subtracting a predetermined angle from 180 degrees, and an upper limit angle obtained by adding a predetermined angle to 180 degrees. Therefore, the predetermined angle includes 0 degrees, that is, the angle between the guide plate and the paper tube receiving base is "180 ± 0 degrees". Furthermore, the predetermined angle is preferably in the range of 20 degrees to 60 degrees. Specifically, the lower limit angle between the guide plate and the paper tube receiving base is preferably 120 degrees, and more preferably 160 degrees. On the other hand, the upper limit angle between the guide plate and the paper tube receiving base is preferably 240 degrees, and more preferably 200 degrees.

[0058] Also, when the predetermined angle is smaller than 180 degrees, i.e., "180 degrees - predetermined angle", the inclination angle of the bottom plate 222B1 of the second chute 222B becomes smaller relative to the inclination angle of the placement plate 531 of the paper tube receiving stand 53. This means that the gradient of the bottom plate 222B1 becomes smaller relative to the gradient of the placement plate 531. Therefore, when the angle formed by the placement plate 531 and the bottom plate 222B1 is 120 degrees, the gradient of the bottom plate 222B1 becomes the smallest, and when it is 160 degrees, the gradient of the bottom plate 222B1 becomes slightly smaller.

[0059] On the other hand, when the predetermined angle is greater than 180 degrees, i.e., "180 degrees + predetermined angle", the inclination angle of the bottom plate 222B1 of the second chute 222B becomes larger relative to the inclination angle of the placement plate 531 of the paper tube receiving stand 53. This means that the gradient of the bottom plate 222B1 becomes larger relative to the gradient of the placement plate 531. Therefore, when the angle formed by the placement plate 531 and the bottom plate 222B1 is 240 degrees, the gradient of the bottom plate 222B1 becomes the largest, and when the angle is 200 degrees, the gradient of the bottom plate 222B1 becomes slightly larger.

[0060] (Explanation of Collection Box 23) FIG. 8 is a diagram for explaining the configuration of the return box 23. As shown in FIG.

[0061] The recovery box 23 is a box for recovering the empty paper tubes discharged from the guiding device 22. The recovery box 23 includes a frame 231 and a bottom member 232. The frame 231 is made of pipes assembled into a rectangular parallelepiped shape extending in the vertical direction, for example. The frame 231 has at least four side surfaces made of a net made of string, rubber, or steel assembled in a mesh shape, and has an opening 23A with an open top. The first chute 222A of the guiding device 22 is disposed directly above this opening 23A. The bottom member 232 is supported in the frame 231 so as to be movable in the vertical direction along a rail (not shown) that is provided in the vertical direction. The bottom member 232 is also made of pipes assembled in a flat plate shape, like the frame 231, and the flat portion is made of a net. By constructing the sides of the frame 231 and the flat surface of the bottom member 232 from netting, the impact when an empty cardboard tube is discharged into the recovery box 23 is mitigated more than if they were constructed from rigid plate members.

[0062] The bottom member 232 is supported so as to be suspended from the upper part of the frame 231 by an elastic string-like support member 233 made of rubber or the like. When no empty cardboard tube is placed on the bottom member 232, the support member 233 uses its own elastic force to raise the bottom member 232 to an initial height position, and lowers the bottom member 232 according to the weight of the empty cardboard tube placed on the bottom member 232. The support member 233 corresponds to the "bottom member lifting mechanism" of the present invention.

[0063] By allowing the bottom member 232 to be raised and lowered according to weight, the empty paper tube is received by the bottom member 232 positioned above the bottom surface, rather than being received and placed on the bottom surface located below the collection box 23, so that the empty paper tube can be received before its moving speed increases. This prevents deformation of the empty paper tube, and because the bottom member 232 descends according to the weight of the empty paper tube placed, the maximum storage capacity corresponding to the volume of the collection box 23 is not significantly reduced.

[0064] (Explanation of effect) As described above, when the empty paper tube discharged from the paper tube receiving stand 53 is guided by the first chute 222A and the second chute 222B of the guiding device 22 and collected in the collection box 23, it is decelerated by friction with the first chute 222A and the second chute 222B. Therefore, the moving speed when the empty paper tube rolls on the first chute 222A and the second chute 222B is smaller than the falling speed when the empty paper tube is directly discharged from directly above the collection box 23. As a result, the impact applied to the empty paper tube when it is collected in the collection box 23 is smaller, making it possible to reduce the risk of the empty paper tube being deformed or damaged.

[0065] Furthermore, when the second chute 222B is tilted, the second engagement member 223C of the tilting member 223A slides and engages with the first engagement member 542, thereby tilting the paper tube receiving stand 53 supported by the receiving stand support mechanism 541. As a result, the empty paper tubes stored in the paper tube receiving stand 53 move from the paper tube receiving stand 53 to the first chute 222A and the second chute 222B, slide down the first chute 222A and the second chute 222B, and are dropped into the collection box 23. This allows the paper tube receiving stand 53 and collection box 23 of the creel robot 50 to be used in their existing configurations.

[0066] In addition, the guide device 22 is shifted to the collecting position, so that the paper tube receiving platform 53 is tilted, and the placement plate 531 and the bottom plate 222B1 are arranged in a substantially straight line. In other words, the creel robot 50 does not approach and connect to the guide device 22, but the guide device 22 approaches and connects to the creel robot 50, so that the placement plate 531 and the bottom plate 222B1 are arranged in a substantially straight line. Therefore, by simply providing a new guide device 22 while using the conventional creel robot 50 as it is, it is possible to reduce the risk of deformation or damage to empty paper tubes.

[0067] Furthermore, since the empty paper tubes are received by the bottom member 232 positioned above the bottom surface, rather than being received and placed on the bottom surface of the collection box 23, the empty paper tubes can be received before their falling speed increases. This prevents deformation of the empty paper tubes, and since the bottom member 232 descends according to the weight of the empty paper tubes placed on the collection box 23, the maximum storage capacity corresponding to the volume of the collection box 23 is not significantly reduced.

[0068] (Modification) Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible as long as they are within the scope of the claims. For example, in the above embodiment, the guide section 222 of the guide device 22 has the first chute 222A, but this may not be included. Even in this case, the empty paper tube discharged from the paper tube receiving stand 53 is rolled on the second chute 222B, so that the falling speed can be suppressed compared to free fall.

[0069] In the above embodiment, the paper tube recovery device 21 tilts the paper tube receiving table 53, but this is not limited to the above. For example, the creel robot 50 may have a mechanism for tilting the paper tube receiving table 53 independently of the paper tube recovery device 21. For example, the paper tube receiving table 53 of the creel robot 50 and the second chute 222B of the guiding device 22 may be tilted and then approach each other. The paper tube receiving table 53 may be configured to be tilted manually. Furthermore, the mechanism for returning the paper tube receiving table 53 from the discharge position to the take-in position may be, for example, a mechanism for returning the paper tube receiving table 53 to the take-in position using an elastic member such as a spring.

[0070] Furthermore, the discharge mechanism 52 of the creel robot 50 may be provided so as to be movable up and down relative to the main body 51. The guiding device 22 may also be configured so as to be movable up and down. In this case, even after the guiding device 22 is installed, it is possible to adjust the alignment between the paper tube receiving stand 53 and the guiding section 222. Furthermore, the guiding device 22 or the collection box 23 may be configured so as to be movable by casters or the like from their respective installation positions, or may be installed so as not to be movable.

[0071] In the above embodiment, the loading plate 531 is in a substantially horizontal position, but this is not limiting. For example, the discharge port 53A may be inclined so as to face upward. In other words, the loading position may be any position in which the empty paper tubes stored in the paper tube receiving base 53 do not fall.

[0072] Also, when collecting empty paper tubes, the placement plate 531 of the paper tube receiving stand 53 and the bottom plate 222B1 of the second chute 222B are arranged in a substantially straight line, and at this time, it is preferable that the placement plate 531 and the bottom plate 222B1 are in close contact with each other without any gaps. However, this is not limited to this, and for example, as long as the empty paper tube can roll to the first chute 222A without stopping, there may be a gap between the placement plate 531 and the bottom plate 222B1.

[0073] In the above embodiment, the paper tube recovery system 1A is configured by the paper tube recovery device 21 and the creel robot 50, but is not limited to this. For example, the paper tube recovery system may be configured by the paper tube recovery device 21, the creel robot 50, and the creel stands 30 and 30A.

[0074] In the above embodiment, the creel stands 30 and 30A are arranged on both sides of the rail 20, and the creel robot 50 moving on the rail 20 supplies the creel stand 30 and the creel stand 30A with the feed packages, but this is not limiting. For example, the creel robot 50 may supply the feed packages to the creel stand (30 or 30A) arranged on either side of the rail 20.

[0075] Furthermore, while the four side surfaces of the recovery box 23 are made of net, they may be made of a rigid plate member and covered with an elastic member such as sponge. Also, the recovery box 23 may not have a bottom member 232, and the net may be supported in a bag shape by the frame body 231 to recover empty cardboard tubes. [Explanation of symbols]

[0076] 1A Paper Tube Collection System 21 Paper tube recovery device 22 Guidance device 23 Collection Box 30,30A Creel Stand 50 Creel Robot 51 Main body 52 Ejection mechanism 53 Paper tube holder 53A Outlet 54 Tilt mechanism 55 Rotation axis 221 Stand 222 Information Department 222A First Shot 222A1 Bottom plate 222A2 Side plate 222A3 Outlet 222B 2nd shot 222B1 Bottom plate 223 Guide Drive Mechanism 223A Inclined member 223B Guide support mechanism 223C Second engagement member 231 Frame 232 Bottom member 233 Elastic Members 531 Loading Plate 532 Side plate 541 Cradle support mechanism 542 First engagement member

Claims

1. A creel robot that supplies yarn packages in which yarn is wound onto paper tubes, and collects the empty paper tubes after the yarn has been unwound, A paper tube recovery device for recovering the empty paper tubes discharged from the creel robot, Equipped with, The aforementioned creel robot is A paper tube support base that can accommodate the empty paper tubes, includes a mounting plate for placing the empty paper tubes, and an outlet for discharging the empty paper tubes, The paper tube receiving stand is tilted to tilt the paper tube receiving stand so that the empty paper tubes discharged from the paper tube receiving stand are discharged from a predetermined height position at a collection position where the empty paper tubes can be collected by the paper tube collection device. The aforementioned paper tube recovery device is A collection box for collecting the empty paper tubes discharged from the paper tube receiving stand, It includes a guide device that guides the empty paper tubes discharged from the paper tube receiving stand to the collection box, The aforementioned guide device, A guide unit including a guide plate that rolls the empty paper tubes discharged from the paper tube receiving stand and guides them to the collection box, The device includes a guide drive mechanism that tilts the guide section to bring it closer to the paper tube support so that the angle between the guide board and the mounting plate of the paper tube support, which is tilted at the collection position, is within the range of 180 degrees ± a predetermined angle. Paper tube recycling system.

2. The aforementioned tilting mechanism is A support mechanism for tilting the paper tube support, The support mechanism is provided with a first engaging member that tilts the paper tube support, The aforementioned guide drive mechanism is A guide support mechanism that supports the aforementioned guide portion so that it can be tilted by a link mechanism, The link mechanism includes a second engaging member provided at the tip of the driven link, which slides and engages with the first engaging member by the rotation of the tip of the driven link when the guide is tilted. The paper tube recycling system according to claim 1.

3. The aforementioned collection box is A frame capable of accommodating multiple empty paper tubes, with an opening formed on its upper surface for collecting the empty paper tubes, A bottom member that is loosely fitted within the frame and on which the empty paper tube recovered from the opening is placed, The bottom member is supported so as to be able to move up and down, and when no empty paper tube is placed on the bottom member, the bottom member is raised to an initial height position, and the bottom member is lowered according to the weight of the empty paper tube placed on the bottom member, and the bottom member is raised according to the weight of the empty paper tube placed on the bottom member, The paper tube recycling system according to claim 1.

4. The collection box is A frame capable of accommodating multiple empty paper tubes, with an opening formed on its upper surface for collecting the empty paper tubes, A bottom member that is loosely fitted within the frame and on which the empty paper tube recovered from the opening is placed, The bottom member is supported so as to be able to move up and down, and when no empty paper tube is placed on the bottom member, the bottom member is raised to an initial height position, and the bottom member is lowered according to the weight of the empty paper tube placed on the bottom member, and the bottom member is raised according to the weight of the empty paper tube placed on the bottom member, The paper tube recycling system according to claim 2.

5. The creel robot has a creel stand positioned along its travel path, in which the supply of yarn packages and the collection of empty paper tubes are performed by the creel robot. A paper tube recycling system according to any one of claims 1 to 4.

6. A paper tube recovery device for recovering empty paper tubes discharged from a predetermined height position, comprising a paper tube support base capable of accommodating empty paper tubes after the threads have been unwound, a support plate for placing the empty paper tubes, and an outlet for discharging the empty paper tubes, and a tilting mechanism for tilting the paper tube support base so that the empty paper tubes are discharged from a predetermined height position at a recovery position for recovering the empty paper tubes, wherein the device recovers the empty paper tubes discharged from the predetermined height position using a creel robot, A collection box for collecting the empty paper tubes discharged from the paper tube receiving stand, It includes a guide device that guides the empty paper tubes discharged from the paper tube receiving stand to the collection box, The aforementioned guide device, A guide unit including a guide plate that rolls the empty paper tubes discharged from the paper tube receiving stand and guides them to the collection box, The device includes a guide drive mechanism that tilts the guide section to bring it closer to the paper tube support so that the angle between the guide board and the mounting plate of the paper tube support, which is tilted at the collection position, is within the range of 180 degrees ± a predetermined angle. Paper tube recycling device.

7. The aforementioned tilting mechanism is A support mechanism for tilting the paper tube support, The support mechanism is provided with a first engaging member that tilts the paper tube support, The aforementioned guide drive mechanism is A guide support mechanism that supports the aforementioned guide portion so that it can be tilted, The guide support mechanism includes a second engaging member which slides and engages with the first engaging member due to the inclination of the guide. The paper tube recovery device according to claim 6.

8. The aforementioned collection box is A frame capable of accommodating multiple empty paper tubes, with an opening formed on its upper surface for collecting the empty paper tubes, A bottom member that is loosely fitted within the frame and on which the empty paper tube recovered from the opening is placed, The bottom member is supported so as to be able to move up and down, and when no empty paper tube is placed on the bottom member, the bottom member is raised to an initial height position, and the bottom member is lowered according to the weight of the empty paper tube placed on the bottom member, and the bottom member is raised according to the weight of the empty paper tube placed on the bottom member, The paper tube recovery device according to claim 6 or 7.

Images