Roll device

Abstract

To improve working efficiency in winding work.SOLUTION: A roll device 10 has: a roll 100 that is extended in a Z direction crossing a gravity direction, and rotates about an axis AX1 along the Z direction to discharge a material ML introduced into a predetermined area AR1; a roll 102 that rotates in a reverse direction to a rotation direction DR1 of the roll 100; a pressing roller 200 that presses the material ML discharged from the area AR1 onto an outer peripheral surface PR of the roll 100; and a receiving tray 600 placed at a position lower than the roll 100. The pressing roller 200 is selectively disposed in a first state and a second state with different distances to the roll 100. When disposed in the first state, the pressing roller comes adjacent to the roll 100 at a position between the axis AX1 and the receiving tray 600. When disposed in the second state, the pressing roller is located at a place further away from the roll 100 than when disposed in the first state. When pressing the material ML discharged from the area AR1 to the roll 100, the pressing roller is disposed in the first state.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a roll device. [Background technology]

[0002] The roll device is used, for example, for producing rubber dough etc. For example, Patent Document 1 discloses a roll device used for kneading rubber dough. This type of roll device has a roll around which the rubber dough is wound. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 63-144208 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the winding work of winding the fabric around the roll is performed manually by an operator pressing the fabric against the roll, the work efficiency of the winding work may decrease.

[0005] In consideration of the above circumstances, an object of the present invention is to improve the work efficiency of the winding work. [Means for solving the problem]

[0006] In order to solve the above problems, a roll device according to one embodiment of the present invention comprises a first roll rod extending in a first direction intersecting with the direction of gravity and rotating around a first axis along the first direction to discharge material input into a predetermined area, a second roll rod arranged parallel to the first roll rod so as to be adjacent to the first roll rod, extending in the first direction and rotating in the opposite direction to the rotation direction of the first roll rod around a second axis along the first direction, a pressure roller extending in the first direction and pressing the material discharged from the predetermined area against the outer circumferential surface of the first roll rod, and a receiving tray installed at a position below the first roll rod, wherein the pressure roller is selectively arranged in a first state and a second state in which the distance to the first roll rod is different, and when arranged in the first state, the pressure roller is adjacent to the first roll rod at a position between the first axis and the receiving tray, and when arranged in the second state, the pressure roller is located farther from the first roll rod than when arranged in the first state, and is arranged in the first state when pressing the material discharged from the predetermined area against the first roll rod. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view showing an example of a schematic configuration of a roll device according to an embodiment. [Diagram 2] 11 is a perspective view showing an example of a roll device when the presser roller is placed in a second state. FIG. [Diagram 3] 11 is a perspective view showing an example of a roll device in which the arrangement of the presser rollers is in the process of shifting from a second state to a first state. FIG. [Figure 4] FIG. 11 is a perspective view showing an example of a schematic configuration of a roll device according to a first modified example. [Diagram 5] FIG. 11 is a perspective view showing an example of a schematic configuration of a roll device according to a second modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, the embodiments of the present invention will be described with reference to the drawings. However, in each drawing, the dimensions and scale of each part are appropriately different from the actual ones. In addition, since the embodiments described below are preferred specific examples of the present invention, various technically preferable limitations are attached, but the scope of the present invention is not limited to these embodiments unless otherwise specified in the following description to the effect that the present invention is limited.

[0009] [1. Embodiment] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to FIGS.

[0010] FIG. 1 is a perspective view showing an example of a schematic configuration of a rolling device 10 according to an embodiment. In this embodiment, a pressure roller 200, which will be described later, can be selectively placed in a first state or a second state. For example, FIG. 1 is a perspective view showing an example of the rolling device 10 when the pressure roller 200 is placed in the first state. Also, FIG. 2 is a perspective view showing an example of the rolling device 10 when the pressure roller 200 is placed in the second state. The first state and the second state will be explained when explaining the pressure roller 200.

[0011] In this embodiment, for convenience of explanation, a three-axis Cartesian coordinate system having an X-axis, a Y-axis, and a Z-axis that are orthogonal to each other is introduced. Hereinafter, the direction indicated by the arrow of the X-axis is referred to as the +X direction, and the opposite direction of the +X direction is referred to as the -X direction. Hereinafter, the direction indicated by the arrow of the Y-axis is referred to as the +Y direction, and the opposite direction of the +Y direction is referred to as the -Y direction. Hereinafter, the +Y direction and the -Y direction may be referred to as the Y direction without any particular distinction, and the +X direction and the -X direction may be referred to as the X direction without any particular distinction. Hereinafter, the +Z direction and the -Z direction may be referred to as the Z direction without any particular distinction. Hereinafter, the +Y direction may be referred to as the upper side, and the -Y direction may be referred to as the lower side.

[0012] As shown in Fig. 1, the roll device 10 is used for kneading a material ML such as rubber material. For example, the roll device 10 has rolls 100 and 102, a presser roller 200, a connecting member 300, a shaft 400, blades 420 (420a and 420b), a plate 500, a tray 600, and a support frame 700. The roll 100 is an example of a "first roll rod," and the roll 102 is an example of a "second roll rod." The blades 420 (420a and 420b) are an example of a "blade that cuts a material to a predetermined width."

[0013] In this embodiment, it is assumed that the rolls 100 and 102, the pressure roller 200, and the shaft 400 are cylindrical and extend in the Z direction intersecting with the -Y direction. In this embodiment, the -Y direction corresponds to the "gravity direction." That is, the rolls 100 and 102, the pressure roller 200, and the shaft 400 extend in the Z direction intersecting with the gravity direction (-Y direction). The Z direction is an example of the "first direction."

[0014] The roll 100 is disposed parallel to the roll 102 so as to be adjacent to the roll 102. The roll 100 rotates in a rotation direction DR1 (counterclockwise when viewed from the +Z direction) around an axis AX1 along the Z direction. The roll 102 rotates in a rotation direction DR2 (clockwise when viewed from the +Z direction) around an axis AX2 parallel to the axis AX1. That is, the roll 102 is disposed parallel to the roll 100 so as to be adjacent to the roll 100, and rotates in the opposite direction to the rotation direction DR1 of the roll 100 around the axis AX2 along the Z direction. For example, the axis AX1 is an axis passing through the center of a circle that is grasped as the shape of the roll 100 when the roll 100 is viewed from the +Z direction, and the axis AX2 is an axis passing through the center of a circle that is grasped as the shape of the roll 102 when the roll 102 is viewed from the +Z direction. The axis AX1 is an example of a "first axis", and the axis AX2 is an example of a "second axis".

[0015] In this way, the rolls 100 and 102 rotate in opposite directions. In order to make the drawing easier to see, the illustration of a rotation drive device that rotates the rolls 100 and 102 in opposite directions is omitted in Fig. 1. As the rotation drive device that rotates the rolls 100 and 102 in opposite directions, for example, a rotation drive device of a known roll device can be used.

[0016] When material ML is input into region AR1 between rolls 100 and 102 that rotate in opposite directions, material ML kneaded by rolls 100 and 102 that rotate in opposite directions is discharged along the outer peripheral surface PR of roll 100 into region AR2 between rolls 100 and 102. Region AR1 is an example of a "predetermined region." For example, the region AR1 may be a region between rolls 100 and 102 that is above a portion where the length between rolls 100 and 102 is at its minimum. Also, for example, the region AR2 may be a region between rolls 100 and 102 that is below a portion where the length between rolls 100 and 102 is at its minimum.

[0017] In this way, the roll 100 extends in the Z direction intersecting with the direction of gravity (-Y direction), and rotates about the axis AX1 along the Z direction to discharge the material ML input into the area AR1.

[0018] The pressure roller 200 presses the material ML, which is discharged along the outer peripheral surface PR of the roll 100, from the region AR1 between the rolls 100 and 102 to the region AR2, against the outer peripheral surface PR of the roll 100. In this way, the pressure roller 200 presses the material ML discharged from the region AR1 against the outer peripheral surface PR of the roll 100, so that the material ML discharged from the region AR1 is wound around the outer peripheral surface PR of the roll 100.

[0019] The pressure roller 200 is connected to a shaft 400 that is movable along the X direction, for example, by a connecting member 300. The pressure roller 200 is selectively disposed in a first state and a second state in which the distance to the roll 100 is different. For example, when the pressure roller 200 is disposed in the first state, the pressure roller 200 is adjacent to the roll 100 at a position between the axis AX1 and the tray 600. Also, for example, as shown in FIG. 2, when the pressure roller 200 is disposed in the second state, the pressure roller 200 is located at a position farther away from the roll 100 than when the pressure roller 200 is disposed in the first state. That is, a second distance DIS2, which is the distance between the roll 100 and the pressure roller 200 when the pressure roller 200 is disposed in the second state, is larger than a first distance DIS1, which is the distance between the roll 100 and the pressure roller 200 when the pressure roller 200 is disposed in the first state.

[0020] 1, the pressure roller 200 is placed in the first state when pressing the material ML discharged from the area AR1 against the roll 100. In this manner, in this embodiment, by placing the pressure roller 200 in the first state, the material ML discharged from the area AR1 can be wound around the roll 100. Note that the pressure roller 200 may be rotatable about an axis AX3 along the Z direction. The axis AX3 is, for example, an axis passing through the center of a circle that is grasped as the shape of the pressure roller 200 when the pressure roller 200 is viewed from the +Z direction.

[0021] Blades 420a and 420b for cutting the sheet-like material ML wound around the outer peripheral surface PR of the roll 100 to a predetermined width are attached to the shaft 400 by, for example, screwing or welding. The blades 420a and 420b may be attached to the shaft 400 so that the interval (predetermined width) between the blades 420a and 420b is adjustable, or may be attached so as to be fixed at a predetermined interval.

[0022] The positional relationship between the roll 100, the pressure roller 200, and the shaft 400 differs between when the pressure roller 200 is disposed in the first state and when the pressure roller 200 is disposed in the second state. For example, when the pressure roller 200 is disposed in the first state, the pressure roller 200 is located between the roll 100 and the shaft 400. Also, for example, as shown in FIG. 2, when the pressure roller 200 is disposed in the second state, the shaft 400 is located between the roll 100 and the pressure roller 200.

[0023] 1, a plate 500 is attached to the shaft 400, which extends in the Z direction and reduces the gap between the shaft 400 and the tray 600. In this embodiment, the plate 500 reduces the gap between the shaft 400 and the tray 600 compared to when the plate 500 is not provided, and therefore it is possible to prevent the worker's hand from accidentally getting under the shaft 400. That is, in this embodiment, it is possible to reduce the risk of work compared to when the plate 500 is not provided. As a result, safety can be ensured in this embodiment.

[0024] The tray 600 is placed at a position below the roll 100. The tray 600 receives, for example, the sheet-like material ML peeled off from the roll 100. For example, the sheet-like material ML is cut to a predetermined width by the blades 420a and 420b and peeled off from the roll 100, and is sent to the tray 600. Note that, for example, a worker may receive the sheet-like material ML peeled off from the roll 100 without using the tray 600, and send the sheet-like material ML peeled off from the roll 100 to a belt conveyor for the next process.

[0025] The support frame 700 is a frame that supports the rolls 100, 102, the shaft 400, the tray 600, etc. In order to make the drawings easier to see, a portion of the support frame 700 is illustrated in Figs. 1 and 2 and the like. The support frame 700 has, for example, side portions SD (SD1 and SD2) that are substantially perpendicular to the Z direction (extension direction of the shaft 400, etc.) and a front portion FT that is substantially perpendicular to the side portions SD. Note that "substantially perpendicular" is a concept that includes an error. For example, "substantially perpendicular" may mean that the design is perpendicular. The front portion FT is, for example, disposed between the side portions SD1 and SD2, and connected to the ends of the side portions SD1 and SD2 that are closer to the +X direction than the roll 100.

[0026] Between the side surface portions SD1 and SD2, for example, a shaft 400 and the like are disposed. For example, a guide groove 720 that guides the movement of the shaft 400 is provided in each of the side surface portions SD1 and SD2. Note that in the perspective view of FIG. 1, the guide groove 720 provided in the side surface portion SD2 is not shown because the roll device 10 is viewed from a direction in which the guide groove 720 provided in the side surface portion SD2 is hidden by the side surface portion SD2 (a direction between the +Z direction and the +X direction).

[0027] Guide groove 720 is, for example, a groove extending in the X direction. For example, one end of shaft 400 is inserted into guide groove 720 provided in side surface portion SD1, and the other end of shaft 400 is inserted into guide groove 720 provided in side surface portion SD2. In this way, shaft 400 is supported by support frame 700 so as to be movable along the X direction.

[0028] For example, when the shaft 400 is disposed at the end ED1 of the guide groove 720, the pressure roller 200 is disposed at a position adjacent to the roll 100. That is, when the shaft 400 is disposed at the end ED1 of the guide groove 720, the pressure roller 200 is disposed in a first state. Also, as shown in FIG. 2, when the shaft 400 is disposed at the end ED2 of the guide groove 720, the pressure roller 200 is disposed at a position away from the roll 100. That is, when the shaft 400 is disposed at the end ED2 of the guide groove 720, the pressure roller 200 is disposed in a second state.

[0029] Here, the effect of this embodiment will be described with a comparative example in which the presser roller 200 is omitted from the roll device 10. In the comparative example, for example, a method is considered in which the winding work of winding the material ML around the roll 100 is performed manually by an operator pressing the material ML against the roll 100 with his / her hand or the like. In contrast, in this embodiment, as shown in FIG. 1, the presser roller 200 is placed in the first state, and the winding work is performed by the presser roller 200. Therefore, in this embodiment, compared to the comparative example, it is possible to reduce manual work during the winding work and improve the work efficiency of the winding work. Also, in this embodiment, compared to the comparative example, it is possible to reduce manual work during the winding work, and therefore it is possible to reduce the risk of work. That is, in this embodiment, it is possible to ensure safety compared to the comparative example.

[0030] In a comparative example, for example, an auxiliary jig equivalent to the pressure roller 200 is prepared separately from the roll device main body, and the auxiliary jig is used to perform the winding work of winding the material ML around the roll 100. When an auxiliary jig is used separately from the roll device main body, the auxiliary jig is installed close to the roll device main body, which may narrow the work space and reduce work efficiency. Also, in the comparative example, when the auxiliary jig is prepared separately from the roll device main body, it is necessary to secure a place to store the auxiliary jig.

[0031] 2, when the pressure roller 200 is placed in the second state, it is located below the shaft 400 and is stored in the receiving tray 600. That is, in this embodiment, when the pressure roller 200 is not used, the pressure roller 200 can be stored in the receiving tray 600 by placing the pressure roller 200 in the second state. As a result, in this embodiment, it is not necessary to secure a place to store the pressure roller 200 separately from the roll device 10.

[0032] For example, in this embodiment, since the pressure roller 200 is supported on the support frame 700 of the roll device 10 via the shaft 400, the space required to store the pressure roller 200 in the tray 600 can be made smaller than the size of the area for storing the auxiliary jig. Therefore, in this embodiment, the space in the factory or the like where the roll device 10 is installed can be used effectively.

[0033] In addition, in this embodiment, since the presser roller 200 is supported on the support frame 700 of the roll device 10 via the shaft 400, the work space can be made larger than when an auxiliary jig is used separately from the roll device main body. Therefore, in this embodiment, the work efficiency can be improved compared to when an auxiliary jig is used.

[0034] The configuration of the roll device 10 is not limited to the example shown in FIG. 1 and FIG. 2. For example, when there is no need to cut the vicinity of the edge located in the +Z direction among two edges extending in the X direction of the sheet-like material ML before cutting it to a predetermined width, the blade 420b may be omitted. In this case, the blade 420a corresponds to the "blade that cuts the material to a predetermined width". Alternatively, when there is no need to cut the sheet-like material ML to a predetermined width, the blades 420a and 420b may be omitted. Next, an example of a process in which the arrangement of the presser roller 200 moves from the second state to the first state will be described with reference to FIG. 3 and the like.

[0035] 3 is a perspective view showing an example of the roll device 10 in the middle of the position of the pressure roller 200 changing from the second state to the first state. The change in the position of the pressure roller 200 (e.g., from the second state to the first state) may be performed manually or automatically in response to an operation on an operating device such as the operating buttons BT (BT1 and BT2) shown in FIG.

[0036] When the pressure roller 200 is in the second state, as described in FIG. 2, the shaft 400 is positioned at the end ED2 of the guide groove 720, and the pressure roller 200 is stored in the receiving tray 600 at a position below the shaft 400.

[0037] When the arrangement of the pressure roller 200 is changed from the second state to the first state, the pressure roller 200 is raised from a position below the shaft 400 to a position above the shaft 400, as shown by the two-dot chain arrow in FIG. 3. In the example shown in FIG. 3, the pressure roller 200 is raised to a position above the shaft 400 with the shaft 400 disposed at the end ED2 of the guide groove 720, and is held at the position above the shaft 400. That is, in this embodiment, the pressure roller 200 is connected to the shaft 400 by the connecting member 300 so as to be rotatable about the shaft 400 as a fulcrum. For example, the shaft 400 may rotate about an axis along the Z direction that passes through the center of a circle that is grasped as the shape of the shaft 400 when the shaft 400 is viewed from the +Z direction, so that the pressure roller 200 rotates about the shaft 400 as a fulcrum. Alternatively, the connection member 300 that connects the presser roller 200 and the shaft 400 may be rotatable with the shaft 400 as a fulcrum.

[0038] Next, with the pressure roller 200 held at a position above the shaft 400, the shaft 400 is moved from the end ED2 of the guide groove 720 to the end ED1 of the guide groove 720 as shown by the dashed arrow in Fig. 3, and is held at the end ED1 of the guide groove 720. As a result, the pressure roller 200 is disposed in the first state adjacent to the roll 100 as shown in Fig. 1.

[0039] The process by which the position of the pressure roller 200 moves from the second state to the first state is not limited to the example shown in FIG. 3. For example, the pressure roller 200 may be raised from a position below the shaft 400 to a position above the shaft 400 after the shaft 400 moves to the end ED1 of the guide groove 720. In this case, the shaft 400 is moved from the end ED2 of the guide groove 720 to the end ED1 of the guide groove 720 with the pressure roller 200 held in a position below the shaft 400. Also, for example, the process by which the position of the pressure roller 200 moves from the first state to the second state is the reverse process of the process by which the position of the pressure roller 200 moves from the second state to the first state.

[0040] As described above, in this embodiment, the roll device 10 includes the roll 100, the roll 102, the pressing roller 200, and the receiving tray 600. The roll 100 extends in the Z direction intersecting with the direction of gravity, and rotates around an axis AX1 along the Z direction to discharge the material ML input into a predetermined area AR1. The roll 102 is disposed parallel to the roll 100 so as to be adjacent to the roll 100, and rotates in the opposite direction to the rotation direction DR1 of the roll 100 around an axis AX2 along the Z direction. The pressing roller 200 extends in the Z direction, and presses the material ML discharged from the predetermined area AR1 against the outer peripheral surface PR of the roll 100. The receiving tray 600 is installed at a position below the roll 100.

[0041] Moreover, in this embodiment, the pressure roller 200 is selectively disposed in a first state and a second state having different distances to the roll 100. When disposed in the first state, the pressure roller 200 is adjacent to the roll 100 at a position between the axis AX1 and the tray 600, and when disposed in the second state, the pressure roller 200 is located at a position farther away from the roll 100 than when disposed in the first state. For example, the pressure roller 200 is disposed in the first state when pressing the material ML discharged from a predetermined area AR1 against the roll 100.

[0042] In this manner, in this embodiment, by placing the press roller 200 in the first state, the material ML discharged from the predetermined area AR1 is pressed against the roll 100. As a result, the material ML discharged from the area AR1 is wound around the roll 100. That is, in this embodiment, by placing the press roller 200 in the first state, the material ML discharged from the area AR1 can be automatically wound around the roll 100. Therefore, in this embodiment, the work efficiency of the winding work can be improved compared to the case where the winding work of winding the material ML around the roll 100 is performed manually by an operator pressing the material ML against the roll 100 with his / her hands or the like. Also, in this embodiment, the manual work during the winding work (for example, the manual work of an operator pressing the material ML against the roll 100 with his / her hands or the like) can be reduced, thereby reducing the risk of the work.

[0043] Furthermore, in this embodiment, when the pressure roller 200 is not used, the pressure roller 200 can be placed in the second state, so that the pressure roller 200 can be placed at a position away from the roll 100. As a result, in this embodiment, even when work that does not use the pressure roller 200 (for example, cleaning the roll 100) is performed, it is possible to reduce the pressure roller 200 from interfering with the work. In other words, in this embodiment, it is possible to prevent a decrease in work efficiency even in work that does not use the pressure roller 200.

[0044] Furthermore, in this embodiment, when the pressure roller 200 is placed in the second state, it is stored in the tray 600. Therefore, in this embodiment, it is not necessary to secure a place to store the pressure roller 200 separately from the rolling device 10. Therefore, in this embodiment, for example, it is possible to suppress an increase in the space required for the winding operation, such as the installation space and storage space of the entire device.

[0045] In this embodiment, the roll device 10 further includes blades 420 (420a and 420b) for cutting the sheet-like material ML wound around the outer peripheral surface PR of the roll 100 to a predetermined width, and a shaft 400 extending in the Z direction and to which the blade 420 is attached. When the pressure roller 200 is disposed in the first state, the positional relationship between the roll 100, the pressure roller 200, and the shaft 400 is such that the pressure roller 200 is located between the roll 100 and the shaft 400. When the pressure roller 200 is disposed in the second state, the positional relationship between the roll 100, the pressure roller 200, and the shaft 400 is such that the shaft 400 is located between the roll 100 and the pressure roller 200. In this way, in this embodiment, the distance between the roll 100 and the pressure roller 200 can be made larger than the distance between the roll 100 and the shaft 400 when the pressure roller 200 is not used. As a result, in this embodiment, a decrease in efficiency of work that does not use the pressure roller 200 can be prevented.

[0046] In this embodiment, the roll device 10 further includes a plate 500 that extends in the Z direction and reduces the gap between the shaft 400 and the tray 600. This prevents the worker's hand from accidentally getting under the shaft 400, reducing the risk of work. As a result, this embodiment ensures safety.

[0047] [2. Modifications] The above-described embodiment may be modified in various ways. Specific modified aspects that may be applied to the above-described embodiment are illustrated below. Two or more aspects selected from the following examples may be combined to the extent that they are not mutually contradictory.

[0048] [First Modification] In the above-described embodiment, the roll device 10 may further include a roller control device 800 that controls the arrangement of the pressure roller 200, as shown in FIG.

[0049] Fig. 4 is a perspective view showing an example of a schematic configuration of the roll device 10 according to the first modified example. Fig. 4 is a perspective view showing an example of the roll device 10 when the presser roller 200 is placed in the second state. Elements similar to those described in Figs. 1 to 3 are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0050] The rolling device 10 shown in Fig. 4 further includes a roller control device 800 that controls the arrangement of the presser rollers 200, in addition to the elements included in the rolling device 10 shown in Fig. 1. The rolling device 10 shown in Fig. 4 is similar to the rolling device 10 shown in Fig. 1, except for having the roller control device 800. For this reason, the roller control device 800 will be described in Fig. 4. The roller control device 800 is an example of a "control device."

[0051] The roller control device 800 has an operation device such as, for example, operation buttons BT (BT1 and BT2). For example, when the operation button BT1 is pressed by an operator, the roller control device 800 shifts the position of the pressure roller 200 from the second state to the first state. Pressing the operation button BT1 corresponds to a "predetermined operation." In other words, the roller control device 800 shifts the position of the pressure roller 200 from the second state to the first state in response to the predetermined operation. Also, for example, when the operation button BT2 is pressed by an operator, the roller control device 800 shifts the position of the pressure roller 200 from the first state to the second state.

[0052] In addition, the roller control device 800 may have, for example, one operation button BT that also serves as the operation buttons BT1 and BT2. In this case, when the operation button BT is pressed while the pressure roller 200 is arranged in the second state, the roller control device 800 may shift the arrangement of the pressure roller 200 from the second state to the first state. Also, when the operation button BT is pressed while the pressure roller 200 is arranged in the first state, the roller control device 800 may shift the arrangement of the pressure roller 200 from the first state to the second state. Alternatively, the operation device of the roller control device 800 is not limited to the operation button BT. For example, the operation device of the roller control device 800 may be a touch panel and an operation lever that accepts an operation by an operator, or a combination of a plurality of the operation button BT, the touch panel, the operation lever, and the like. Also, the roller control device 800 may have a function of a rotation drive device that rotates the rolls 100 and 102 in opposite directions to each other.

[0053] As described above, the first modified example can also provide the same effects as those of the above-described embodiment. Furthermore, in the first modified example, the pressure roller 200 is automatically arranged from the second state to the first state, or from the first state to the second state, in response to an operation such as pressing the operation button BT. Therefore, in the first modified example, manual work for shifting the arrangement of the pressure roller 200 from the second state to the first state can be reduced, thereby reducing operational hazards.

[0054] [Second modified example] In the above-described embodiment, the roll device 10 may further include a sensor 900 for detecting whether or not an obstacle is present between the pressure roller 200 and the shaft 400, as shown in FIG.

[0055] Fig. 5 is a perspective view showing an example of a schematic configuration of a roll device 10 according to a second modified example. Fig. 5 is a perspective view showing an example of the roll device 10 when the presser roller 200 is placed in the first state. Elements similar to those described in Figs. 1 to 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0056] The roll device 10 shown in FIG. 5 further includes a sensor 900 in addition to the elements included in the roll device 10 shown in FIG. 4. The roll device 10 shown in FIG. 5 also includes a roller control device 800A instead of the roller control device 800 shown in FIG. 4. That is, the roll device 10 shown in FIG. 5 is similar to the roll device 10 shown in FIG. 4 except that it includes the sensor 900 and the roller control device 800A instead of the roller control device 800. For this reason, the roller control device 800A and the sensor 900 will be described in FIG. 5. The roller control device 800A is another example of a "control device."

[0057] The sensor 900 is, for example, a transmission type sensor including a light projecting unit that emits light and a light receiving unit that receives light. In the example shown in FIG. 5, the roll device 10 has two sensors 900. For example, one of the light projecting unit and the light receiving unit of each sensor 900 is installed on one of the side surface parts SD1 and SD2, and the other of the light projecting unit and the light receiving unit of the sensor 900 is installed on the other of the side surface parts SD1 and SD2. In the perspective view of FIG. 5, the roll device 10 is viewed from a direction in which the sensor 900 installed on the side surface part SD2 is hidden by the side surface part SD2 (a direction between the +Z direction and the +X direction), so the sensor 900 installed on the side surface part SD2 is not shown. In addition, the sensor 900 may be installed in a place other than the side surface part SD. For example, the sensor 900 may be installed on the connection member 300 or the like. Each of the two dotted lines in FIG. 5 indicates light emitted from each of the two sensors 900 (more specifically, the light projecting portion of each of the two sensors 900).

[0058] For example, if an obstacle such as a hand is present between the pressure roller 200 and the shaft 400, the light emitted from the light-projecting unit of the sensor 900 is blocked by the obstacle without reaching the light-receiving unit of the sensor 900. Therefore, the sensor 900 detects whether or not an obstacle such as a hand is present between the pressure roller 200 and the shaft 400 based on whether or not the light-receiving unit receives the light emitted from the light-projecting unit. For example, the roller control device 800A determines that the sensor 900 has detected that an obstacle is present between the pressure roller 200 and the shaft 400 when the light-receiving unit does not receive the light emitted from the light-projecting unit of the sensor 900.

[0059] The roller control device 800A is similar to the roller control device 800 shown in FIG. 4, except that the roller control device 800A moves the pressure roller 200 when the sensor 900 detects that an obstacle exists between the pressure roller 200 and the shaft 400. For example, when the sensor 900 detects that an obstacle such as an operator's hand exists between the pressure roller 200 and the shaft 400, the roller control device 800A moves the pressure roller 200 so that the operator's hand or the like is not caught in the roll 100. Specifically, the roller control device 800A moves the pressure roller 200 so that the distance between the roll 100 and the pressure roller 200 is greater than the first distance DIS1 and smaller than the second distance DIS2. Note that the first distance DIS1 is the distance between the roll 100 and the pressure roller 200 when the pressure roller 200 is disposed in the first state, as described in FIG. 1. Also, the second distance DIS2 is the distance between the roll 100 and the pressure roller 200 when the pressure roller 200 is placed in the second state, as described with reference to FIG.

[0060] That is, when the hand of the worker or the like enters between the pressure roller 200 and the shaft 400, the roller control device 800A moves the pressure roller 200 in a direction away from the roll 100. In this way, in the second modified example, it is possible to prevent the hand of the worker from being dragged by the pressure roller 200 and being caught in the roll 100. If the pressure roller 200 moves too far in the +X direction, there is a risk that the pressure roller 200 will hit the hand of the worker or the like. Therefore, the roller control device 800A preferably moves the pressure roller 200 so that the movement amount of the pressure roller 200 is not too large. For example, it is sufficient that the pressure roller 200 is spaced from the roll 100 so that it does not come into contact with the material ML being wound around the roll 100.

[0061] Here, the roller control device 800A may move the pressure roller 200 in a direction away from the roll 100 by rotating the pressure roller 200 about the shaft 400 as a fulcrum. Alternatively, the roller control device 800A may move the pressure roller 200 in a direction away from the roll 100 by moving the shaft 400.

[0062] Furthermore, when the sensor 900 detects that an obstacle exists between the pressure roller 200 and the shaft 400, the roller control device 800A may move the pressure roller 200 and fix the pressure roller 200 so that it does not rotate about the axis AX3. Alternatively, when the sensor 900 detects that an obstacle exists between the pressure roller 200 and the shaft 400, the roller control device 800A may move the pressure roller 200 and stop the rotation of the rolls 100 and 102.

[0063] As described above, the second modified example can also provide the same effects as those of the above-mentioned embodiment and the first modified example. Furthermore, in the second modified example, when the sensor 900 detects that an obstacle exists between the pressure roller 200 and the shaft 400, the roller control device 800A moves the pressure roller 200 in a direction away from the roll 100. As a result, in the second modified example, even if the worker's hand or the like enters between the pressure roller 200 and the shaft 400, the worker's hand or the like can be prevented from being dragged by the pressure roller 200 and entangled in the roll 100. As a result, in the second modified example, the danger of work can be further reduced. [Explanation of symbols]

[0064] 10...roll device, 100, 102...roll, 200...pressure roller, 300...connecting member, 400...shaft, 420...blade, 500...plate, 600...receiver, 700...support frame, 720...guide groove, 800, 800A...roller control device, 900...sensor.

Claims

1. A first roll rod that extends in a first direction intersecting with the direction of gravity and rotates around a first axis along the first direction to discharge material that has been input into a predetermined area; a second roll rod arranged parallel to the first roll rod so as to be adjacent to the first roll rod, extending in the first direction, and rotating in a direction opposite to the rotation direction of the first roll rod about a second axis along the first direction; a pressing roller extending in the first direction and pressing the material discharged from the predetermined area against an outer circumferential surface of the first roll rod; A tray installed at a position below the first roll rod; a blade for cutting the sheet-like material wound around the outer circumferential surface of the first roll rod into a predetermined width; a shaft extending in the first direction and having the blade attached thereto; having The pressure roller is The first roll rod is selectively disposed in a first state and a second state in which the distance to the first roll rod is different, When the roller is disposed in the first state, the roller is adjacent to the first roll rod at a position between the first shaft and the tray, When the roller is disposed in the second state, the roller is located farther away from the first roll rod than when the roller is disposed in the first state. The material discharged from the predetermined area is placed in the first state when the material is pressed against the first roll rod, The positional relationship between the first roll rod, the presser roller, and the shaft is as follows: When the pressure roller is disposed in the first state, the pressure roller is located between the first roll rod and the shaft, When the pressure roller is disposed in the second state, the shaft is located between the first roll rod and the pressure roller. Relationship A roll device comprising:

2. The pressure roller is When the second state is placed, the container is stored in the container.

2. The roll device of claim 1.

3. The plate further includes a plate extending in the first direction and reducing a gap between the shaft and the tray.

3. A roll device according to claim 1 or 2.

4. Further, a control device is provided which changes the position of the presser roller from the second state to the first state in response to a predetermined operation.

4. A roll device according to claim 1, wherein the roll device is a roller.

5. a control device that changes the position of the presser roller from the second state to the first state in response to a predetermined operation; a sensor for detecting whether an obstacle is present between the pressure roller and the shaft; and The control device includes: When the sensor detects that the obstacle exists between the pressure roller and the shaft, the pressure roller is moved so that the distance between the first roll rod and the pressure roller is larger than the distance between the first roll rod and the pressure roller when the pressure roller is disposed in the first state and is smaller than the distance between the first roll rod and the pressure roller when the pressure roller is disposed in the second state.

4. A roll device according to claim 1, wherein the roll device is a roller.

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