JP6909560B2 - Base material support device - Google Patents

Description

The present invention relates to a base material support device, and more particularly to a device that rotatably supports the base material by a roller when performing various processing such as thermal spraying on a long base material having a circular cross-sectional shape. ..

In order to process a long base material such as a steel pipe, a device for rotatably supporting the base material may be required. For example, it is a case where the outer surface of a boiler tube used for a boiler pipe is sprayed.

In processing, particles (spraying material) such as metal, ceramics, and cermet that have been melted or semi-melted by heating are sprayed from a thermal spray gun and sprayed onto the surface of the base material. At this time, the end of the base material is chucked. Grasp and rotate by motor. As a result, a uniform thermal spray coating can be formed on the outer peripheral surface of the base material.

In addition to thermal spraying, a device that rotatably supports the base material may be required in various machining processes such as blasting, grinding, and polishing.

Further, Patent Document 1 below discloses a technique for spraying a long base material while rotating it.

Japanese Unexamined Patent Publication No. 8-1059

By the way, even if it is a metal tube such as a boiler tube, it is not always easy to support it straight and horizontally when the length becomes long or the diameter becomes small, and the base material bends due to its own weight, which reduces the processing accuracy. Can occur.

Therefore, in the invention described in Patent Document 1, both ends of the base material are gripped by chucks, and tension is applied from both ends until the base material is no longer bent to hold the base material horizontally. However, when the length of the base material is long, the diameter is small, or the weight of the base material is large, the bending is likely to occur, and the tension applied to the base material is also limited.

In addition, while it is desirable that the tension be large in order to reduce bending, it is necessary to keep it below the size at which plastic deformation occurs, and depending on the type of base material (material, diameter, wall thickness, etc.), the ease of bending also causes plastic deformation. Since the limit value that does not occur also changes, when various base materials are processed one after another, the tension adjustment is complicated and the processing efficiency is not always good.

If the base material is supported vertically, the problem of bending as described above can be avoided, but a long base material having a length of, for example, nearly 10 meters or more than 10 meters or more can be vertically supported in the factory. It is not realistic to support and process.

On the other hand, it is also conceivable to support the base material by rollers regardless of the tension as described above. A plurality of roller devices having a pair of rollers arranged at regular intervals so that the base material can be placed are linearly arranged (in the length direction of the base material), and both ends of the base material are arranged by these roller devices. It supports not only the middle part but also the middle part. Even if the length of the base material becomes long, it can be dealt with by increasing the number of roller devices. Further, if the distance between the roller devices is reduced, it is possible to prevent bending from occurring.

However, simply placing it on the roller in this way may cause the base material to run wild (lift or wavy from the roller) during processing. In particular, when the base material is relatively lightweight and long, when the diameter is small, or when the speed at which the base material is rotated is high, the base material tends to run wild, and if such runaway occurs, the processing accuracy decreases. It leads to deterioration of product quality.

Therefore, an object of the present invention is to support a long base material so as to be horizontally rotatable while preventing runaway and bending.

In order to solve the above problems and achieve the object, the base material support device according to the present invention is arranged at intervals so that a long base material having a circular cross section can be rotatably supported around an axis. A base material support device including two or more roller devices, wherein the roller device includes a receiving roller portion that supports the base material from below so that the base material can rotate about an axis, and a base material supported by the receiving roller portion. It is provided with a pressing roller portion that abuts on the outer peripheral surface of the base material from above and presses the base material from above while allowing rotation of the base material around the axis.

The presser roller portion abuts on the outer peripheral surface of the base material supported by the receiving roller portion from above and rotates in response to the rotation of the base material, and moves the base material upward while allowing rotation around the axis of the base material. The presser roller is rotatably supported by the presser roller and the presser roller at the tip, and has a support shaft at the base end located on the side of the receiving roller portion. An arm that can rotate between the holding position that is in contact with the base material and the detaching position that stands up and retracts the holding roller to the side of the base material, and the support shaft is rotated and moved up and down at the same time. It has an arm drive unit that moves in a direction.

Then, when the arm driving unit rotates the arm from the pressing position to the detaching position, the arm driving unit rotates the arm so that the pressing roller separates from the base material and at the same time moves the support shaft upward, while the pressing position is moved from the detaching position. When the arm is swiveled, the arm is swiveled so that the presser roller approaches the base material, and at the same time, the support shaft is moved downward.

In the base material support device according to the present invention, since the base material is supported from below by a plurality of receiving rollers (roller devices) arranged in the length direction thereof, the base material can be held horizontally and straight. On the other hand, by pressing the base material with the pressing roller from above in this supported state, it is possible to prevent the base material placed on the receiving roller from floating. In other words, the base material is supported so as to be sandwiched (enclosed) by the receiving roller and the pressing roller. Even if the base material is supported in this way, both the receiving roller and the holding roller are rotatably installed and rotate by receiving the rotational force of the base material, so that the rotation of the base material is not hindered. Further, since the presser roller can be separated from the base material, it does not interfere with the loading and unloading of the base material to the support device. Further, in the base material support device according to the present invention, the arm drive unit that drives the presser roller (the arm that supports the presser roller) rotates the support shaft of the arm and at the same time moves it in the vertical direction. That is, when the arm is swiveled from the presser position where the presser roller is brought into contact with the base material to the detached position where the presser roller is retracted to the side of the base material, the arm is swiveled so that the presser roller is separated from the base material at the same time. Move the support shaft upward. On the contrary, when the arm is swiveled from the detached position to the presser position, the arm is swiveled so that the presser roller approaches the base material, and at the same time, the support shaft is moved downward. In the present invention, not only simply turning the arm but also moving the support shaft up and down in this way is a pressing roller close to the top (topmost position) of the base material even for a base material having a large outer diameter. This is to enable more stable holding of base materials having various outer diameters by making it possible to bring them into contact with each other. This point will be described in detail later in the embodiment with reference to the drawings.

The receiving roller portion typically includes a pair of receiving rollers arranged at regular intervals so that the rotation axes are parallel to each other, and the base material is placed between the pair of receiving rollers. Rotatably support the substrate.

The arm drive unit typically includes a gear (pinion) provided at the base end of the arm, a rack that extends in the vertical direction and meshes with the gear, and a drive that moves the base end of the arm in the vertical direction. A device is provided, and by moving the gear up and down by the drive device, the support shaft is moved up and down and at the same time rotated to rotate the arm.

Further, the receiving roller portion can move up and down between the support position where the receiving roller abuts on the base material and the retracting position moved downward from the supporting position, and the pressing roller portion is supported by the receiving roller portion. When moving up and down between the position and the retracted position, it moves up and down together with the receiving roller portion, and when the receiving roller portion descends toward the retracted position, the arm driving unit arranges the arm in the detached position. You may.

According to such an embodiment, a roller (receiving roller and pressing roller) that is in contact with the base material when passing through an apparatus portion (for example, a thermal spraying portion of an embodiment described later) for processing the base material is used as a base. It can be separated from the material and retracted to prevent the rollers from interfering with processing.

Further, the base material support device according to the present invention includes a rotation driving means (for example, a motor) for rotating the base material and a group for gripping the base material and transmitting the rotational force generated by the rotation driving means to the base material. It may be provided with a material gripping portion (for example, a chuck).

Further, a pressing portion that applies an axial pressing force to the base material may be provided, and if such a pressing force is applied during processing, the base material can be more reliably prevented from violent.

In the present invention, it is also possible to construct a device capable of supporting a plurality of substrates at the same time.

Specifically, the device is a base material support device including two or more roller devices arranged at intervals so that a long base material having a circular cross section can be rotatably supported around an axis. However, the roller device supports the first base material from below so that the first base material can rotate about the axis so that the first base material and the second base material can be supported in parallel as the base material. A part, a second receiving roller part that supports the second base material from below so that it can rotate about an axis, and a first base material and a second base that are supported by the first receiving roller part and the second receiving roller part, respectively. It is provided with a pressing roller portion that presses the material from above while allowing rotation around the axis.

Further, the presser roller portion abuts on the outer peripheral surface of the first base material from above and rotates in response to the rotation of the base material, and moves the base material upward while allowing rotation around the axis of the first base material. The first pressing roller that presses from the top and the first pressing roller are rotatably supported at the tip, and a support shaft is provided at the base end located between the first receiving roller and the second receiving roller. With this support shaft as the center, between the pressing position where the first pressing roller is brought into contact with the first base material and the first pressing roller stands up and is placed between the first receiving roller and the second receiving roller. The first arm, which can rotate between the retracted detached position, and the outer peripheral surface of the second base material are in contact with each other from above, and the second base material rotates in response to the rotation of the base material. Between the second pressing roller that presses the base material from above while allowing rotation around the axis, and the second pressing roller that rotatably supports the second pressing roller at the tip, and between the first receiving roller and the second receiving roller. It has a support shaft at the base end located at, and with this support shaft as the center, the second presser roller falls down and the second presser roller is brought into contact with the second base material, and the second presser roller stands up and the second presser roller is first. When the second arm capable of turning between the receiving roller portion and the retracted detached position between the second receiving roller portion, the support shaft of the first arm, and the support shaft of the second arm are rotated. It has an arm drive unit that moves in the vertical direction at the same time.

Further, when the first arm and the second arm are swiveled from the pressing position to the detaching position, the arm driving unit is such that the first pressing roller is separated from the first base material and the second pressing roller is separated from the second base material. At the same time as turning the first arm and the second arm, the support shaft of the first arm and the support shaft of the second arm are moved upward. On the other hand, when the first arm and the second arm are swiveled from the detached position to the pressing position, the arm driving unit causes the first pressing roller to approach the first base material and the second pressing roller to approach the second base material. At the same time as turning the first arm and the second arm, the support shaft of the first arm and the support shaft of the second arm are moved downward.

Further, the arm drive unit includes a first gear provided at the base end portion of the first arm, a second gear provided at the base end portion of the second arm, and the first gear and the second gear extending in the vertical direction. A rack that is arranged between the gears and meshes with the first gear and the second gear, and a drive device that simultaneously moves the base end portion of the first arm and the base end portion of the second arm in the vertical direction are provided. By moving the first gear and the second gear up and down by the drive device, the support shaft of the first arm and the support shaft of the second arm are moved up and down and simultaneously rotated to rotate the first arm and the second arm. May be possible.

The present invention can preferably support a long member having a length dimension larger than that of a diameter, but the type of base material (use, constituent material, etc.) to be supported is not particularly limited. It is suitable for supporting metal pipes such as boiler tubes used for boiler piping, but can also support various other materials (metals, such as resin and wood) and base materials for applications. Is. Further, the base material may be a hollow member or a solid member.

Further, the processing is not limited to a specific one, and the "processing" referred to in the present invention includes various processing such as thermal spraying, blasting, grinding processing (lathe, etc.), and polishing processing.

According to the base material support device according to the present invention, a long base material can be rotatably supported horizontally while preventing runaway and bending.

Other objects, features and advantages of the present invention will be clarified by the following description of embodiments of the present invention described with reference to the drawings. In each figure, the same reference numerals indicate the same or corresponding parts.

FIG. 1 is a side view schematically showing a base material support device according to an embodiment of the present invention. FIG. 2 is a plan view schematically showing the base material support device according to the embodiment. FIG. 3 is a front view showing a roller device (a state in which the base material is supported) of the base material support device according to the embodiment. FIG. 4 is a plan view showing a roller device (a state in which the base material is supported) of the base material support device according to the embodiment. FIG. 5 is a side view showing a roller device (a state in which the base material is supported) of the base material support device according to the embodiment. FIG. 6 is a front view showing a roller device (a state in which the presser roller is detached) of the base material support device according to the embodiment. FIG. 7 is a side view showing a roller device (a state in which the presser roller is detached) of the base material support device according to the embodiment. FIG. 8 is a front view showing a roller device (a state in which the receiving roller is retracted) of the base material support device according to the embodiment. FIG. 9 is a side view showing a roller device (a state in which the receiving roller is retracted) of the base material support device according to the embodiment. FIG. 10 is a front view showing the operation of the presser roller in the embodiment.

As shown in FIGS. 1 and 2, in the base material support device according to the embodiment of the present invention, the base material 10 (10a, 10b) to be processed is rotated by rollers 23, 24, 32 in order to perform thermal spraying. It is a device that supports it as much as possible. The base material 10 is a steel pipe such as a boiler tube, and a plurality of roller devices 21a, 21b, 21c, 21d, 21e arranged in the length direction (front-back direction) of the base material 10 at regular intervals. , 21f, 21g horizontally support the base material 10. Further, in the present embodiment, two support portions (first support portion 11a and second support portion 11b / see FIG. 2) are formed so that the two base materials 10a and 10b can be processed at the same time, and these supports. The parts 11a and 11b are used to support the two base materials 10a and 10b in parallel, respectively.

The receiving rollers 23 and 24 and the pressing rollers 32 of the roller devices 21a to 21g, which will be described in detail later with reference to FIGS. 3 to 10, are arranged on the supporting portions 11a and 11b, respectively, and the base material is formed. A motor 14 that rotates 10 around an axis, a chuck 15 that grips one end (rear end) of the base material 10 and transmits the rotation of the motor 14 to the base material 10, and the other end (front end) of the base material 10. A pressing portion 16 that applies an axial compressive force to the base material 10 is provided.

Further, each of the support portions 11a and 11b is provided with a thermal spraying portion 17 for performing thermal spraying. Each thermal spraying unit 17 has a thermal spray gun 18 that injects a thermal spray material vertically downward toward the base material 10, and a thermal spray tray 19 that collects the thermal spray material. The thermal spray tray 19 is installed below the base material 10 and vertically below the thermal spray gun 18 in order to receive the thermal spray material injected from the thermal spray gun 18. The thermal spraying portion 17 is fixed, and the base material 10 is moved to perform processing.

Therefore, in the present embodiment, the roller devices 21a to 21g, the motor 14, the chuck 15, and the pressing portion 16 are mounted on the carriage 12. The dolly 12 is provided with wheels 13 and a driving device (not shown) such as a motor, and can travel in the front-rear direction (forward and backward). In each figure, coordinates indicating the directions of front, back, left, right, up and down are displayed, and the present embodiment will be described based on these directions.

As shown in FIGS. 3 to 5, each roller device 21a to 21g that supports the base material 10 has a receiving roller portion (first receiving roller portion) that supports the first base material 10a from below in the first supporting portion 11a. 22a, a receiving roller portion (second receiving roller portion) 22b that supports the second base material 10b from below in the second support portion 11b, and a presser that presses the first base material 10a and the second base material 10b from above. A roller portion 31 and a main air cylinder 51 are provided. The receiving roller portions 22a and 22b and the pressing roller portion 31 are installed in the main frame 53, and the receiving roller portions 22a and 22b and the pressing roller portion 31 as a whole are moved up and down by the main air cylinder 51 via the main frame 53. Can be done.

The receiving roller portions 22a and 22b arranged at the right end portion and the left end portion of the main frame 53, respectively, are a pair of receiving roller portions 22a and 22b arranged side by side at intervals smaller than the outer diameter of the base material 10 so that the base material 10 can be placed. It has receiving rollers 23 and 24. These receiving rollers 23 and 24 are rotatably supported between the support plates 25 arranged in the front-rear direction, and freely rotate (see arrow C) in response to the rotation of the base material 10 (see arrow B). Can be done.

On the other hand, the pressing roller portion 31 includes a pressing roller 32 that abuts on the base material 10 placed on the receiving rollers 23 and 24 from above, an arm 34 that rotatably supports the pressing roller 32 via a connecting rod 33, and an arm 34. The arm 34 is moved up and down via the gear 36 fixed to the base end of the arm 34, the rack 41 that meshes with the gear 36, the arm support plate 37 that rotatably supports the arm 34, and the arm support plate 37. It has an auxiliary air cylinder 52 to be moved. The arm 34 and the gear 36 are rotatably supported by the support shaft 35 provided at the base end portion of the arm 34 with respect to the arm support plate 37. Further, the pressing roller 32 can freely rotate (see arrow D) by receiving the rotation of the base material 10 like the receiving rollers 23 and 24.

The presser roller 32, the arm 34, and the gear 36 are provided with two each corresponding to the first receiving roller portion 22a (first base material 10a) and the second receiving roller portion 22b (second base material 10b). Further, the rack 41 has teeth 42 on both the left and right sides, the right tooth 42 is a gear (first gear) 36a fixed to the base end of the right arm 34, and the left tooth 42 is the base of the left arm 34. It meshes with the gear (second gear) 36b fixed to the end.

The rack 41 and the sub air cylinder 52 are fixed to the main frame 53, while the presser roller 32, the arm 34, the gear 36 and the arm support plate 37 are fixed to the sub frame 54. Therefore, when the sub-frame 54 is moved up and down by the sub-air cylinder 52 fixed to the main frame 53, the presser roller 32, the arm 34, the gear 36, and the arm support plate 37 can be moved up and down with respect to the main frame 53. ..

When the sub-frame 54 is moved upward by the sub-air cylinder 52 as shown in FIGS. 6 to 7, the left and right arms 34 also move upward, but the rack 41 fixed to the main frame 53 moves. do not. Therefore, the gear 36 that meshes with the rack 41 and is fixed to the base end of each arm 36 rotates (the first gear 36a on the right side rotates counterclockwise, and the second gear 36b on the left side rotates clockwise. (See also FIG. 10), each arm 34 has changed from the substantially horizontally tilted state shown in FIGS. 3 to 5 to the substantially vertically standing state shown in FIGS. 6 to 7, and the holding roller 32 at the tip of the arm. Moves from the holding position shown in FIGS. 3 to 5 to the detaching position shown in FIGS. 6 to 7.

By moving the presser roller 32 to the detached position in this way, the base material 10 can be picked up (lifted) from above by, for example, a crane and taken out. In addition, a new base material can be received and carried onto the rollers 23 and 24.

Further, it is also possible to retract a part of the roller devices 21a to 21g that support the base material 10 from the base material 10. For example, with respect to some of the roller devices 21d among the roller devices 21a to 21g arranged in large numbers as shown in FIGS. 1 to 2, the main frame 53 is provided by the main air cylinder 51 as shown in FIGS. 8 to 9. Move down. Then, the receiving roller portions 22a and 22b move downward together with the pressing roller portion 31, and the receiving rollers 23 and 24 of the roller device 21d move from the base material 10 supported by the other roller devices 21a to 21c and 21e to 21g. Leave.

If the pressing rollers 32 are detached and the receiving rollers 23, 24 are retracted to the retracted positions as described above, these rollers 23, 24, 32 when passing through the thermal spraying portion 17 (see FIGS. 1 to 2). By other roller devices 21a to 21c, 21e to 21g without disturbing the processing (the pressing roller 32 does not interfere with the spraying of the spraying material and the receiving rollers 23 and 24 do not collide with the spraying tray 19). It is possible to move the base material 10 and proceed with the processing while maintaining the support of the base material 10.

The operation control of the main air cylinder 51 and the sub air cylinders 52 (each roller device 21a to 21g) can be controlled by a computer in conjunction with the movement of the base material 10 (trolley 12), and the rollers passing through the thermal spraying unit 17 can be controlled. Both the air cylinders 51 and 52 of the devices 21a to 21g are operated to move the pressing rollers 32 to the detached positions and the receiving rollers 23 and 24 to the retracted positions, and after passing, the receiving rollers 23 and 24 are moved to the supporting positions. The presser roller 32 may be returned to each of the presser positions.

Further, as shown in FIG. 10, according to the support device of the present embodiment, various base materials 10 and 20 having different outer diameters can be stably supported. In particular, the pressing roller 32 presses the base materials 10 and 20 by bringing them into contact with the top (uppermost end position) of the base materials 10 and 20 or a position as close as possible to the position, and presses the base materials 10 and 20 together with the pair of receiving rollers 23 and 24. It is preferable that the base materials 10 and 20 are stably held at the three points of the roller 32, but according to the present embodiment, not only the arm 34 is simply swiveled but also the arm 34 (gear 36) is rotated (arrow E). Since the support shaft 35 of the arm 34 is moved in the vertical direction (see arrow F), for example, when supporting the base material 20 having a large outer diameter, the support shaft 35 of the arm 34 moves upward. Therefore, the pressing roller 32 can be brought into contact with the position closer to the top than the structure in which the arm 34 simply rotates (see reference numeral G), and the base material 20 can be stably held. ..

Further, according to the present embodiment, one cylinder (secondary air cylinder 52) can simultaneously perform both the rotation of the arm 34 and the vertical movement of the support shaft 35, so that the device can be downsized (around the base material). It can also be applied to processing equipment that can take only a narrow space) and is also advantageous in terms of manufacturing cost.

Although the embodiments of the present invention have been described above, it is clear to those skilled in the art that the present invention is not limited thereto and various modifications can be made within the scope of the claims. ..

For example, in the above-described embodiment, the rack and gears are used to operate the arm, but it can be changed so that the arm is operated in the same manner by using a pin, a wire, a belt, a friction plate, or the like. Further, in the above-described embodiment, the device is used to support two base materials, but a device that supports one base material may be used, or three or more base materials can be provided by providing three or more support portions. It is also possible to configure supportable devices in the same way. Further, although the support device can travel (move) in the above embodiment, the support device of the present invention may have a structure fixed to the floor or the like and cannot travel. Further, as described above, the "processing" referred to in the present invention is not limited to thermal spraying and includes various processing.

10 (10a, 10b), 20 (20a, 20b) Base material 11 Base material support device 11a Support part (first support part)
11b Support part (second support part)
12 Bogie 13 Wheels 14 Motor 15 Chuck 16 Pressing part 17 Thermal spraying part 18 Thermal spraying gun 19 Thermal spraying tray 21a, 21b, 21c, 21d, 21e, 21f, 21g Roller device 22a Receiving roller part (first receiving roller part)
22b Receiving roller part (second receiving roller part)
23, 24 Receiving roller 31 Pressing roller part 32 Pressing roller 33 Connecting rod 34 Arm 35 Support shaft 36a Gear (first gear)
36b gear (second gear)
37 Arm support plate 41 Rack 42 Rack teeth 51 Main air cylinder 52 Sub air cylinder 53 Main frame 54 Sub frame

Claims (9)

A base material support device including two or more roller devices in which long base materials having a circular cross section are arranged at intervals so as to be rotatably supported around an axis.
The roller device is
A receiving roller portion that supports the base material from below so that it can rotate about an axis, and
It is provided with a pressing roller portion that abuts from above on the outer peripheral surface of the base material supported by the receiving roller portion and presses the base material from above while allowing rotation of the base material around the axis.
The presser roller portion is
It contacts the outer peripheral surface of the base material supported by the receiving roller portion from above and rotates in response to the rotation of the base material, and presses the base material from above while allowing rotation of the base material around the axis. With the presser roller,
The presser roller is rotatably supported at the tip portion, and a support shaft is provided at the base end portion located on the side of the receiving roller portion. An arm capable of turning between a pressing position in contact with the base material and a detaching position in which the pressing roller stands up and retracts to the side of the base material.
It has an arm drive unit that moves in the vertical direction at the same time as rotating the support shaft.
The arm drive unit
When the arm is swiveled from the presser position to the detached position, the arm is swiveled so that the presser roller is separated from the base material, and at the same time, the support shaft is moved upward.
When the arm is swiveled from the detached position to the presser position, the arm is swiveled so that the presser roller approaches the base material, and at the same time, the support shaft is moved downward and at the same time, the support shaft is moved downward .
A gear provided at the base end of the arm and
A rack that extends in the vertical direction and meshes with the gears,
With a drive device that moves the base end of the arm in the vertical direction
With
A base material support device characterized in that by moving the gear up and down by the drive device, the support shaft can be moved up and down and simultaneously rotated to rotate the arm. A base material support device including two or more roller devices in which long base materials having a circular cross section are arranged at intervals so as to be rotatably supported around an axis.
The roller device is
A receiving roller portion that supports the base material from below so that it can rotate about an axis, and
It is provided with a pressing roller portion that abuts from above on the outer peripheral surface of the base material supported by the receiving roller portion and presses the base material from above while allowing rotation of the base material around the axis.
The presser roller portion is
It contacts the outer peripheral surface of the base material supported by the receiving roller portion from above and rotates in response to the rotation of the base material, and presses the base material from above while allowing rotation of the base material around the axis. With the presser roller,
The presser roller is rotatably supported at the tip portion, and a support shaft is provided at the base end portion located on the side of the receiving roller portion. An arm capable of turning between a pressing position in contact with the base material and a detaching position in which the pressing roller stands up and retracts to the side of the base material.
It has an arm drive unit that moves in the vertical direction at the same time as rotating the support shaft.
The arm drive unit
When the arm is swiveled from the presser position to the detached position, the arm is swiveled so that the presser roller is separated from the base material, and at the same time, the support shaft is moved upward.
When the arm is swiveled from the detached position to the presser position, the arm is swiveled so that the presser roller approaches the base material, and at the same time, the support shaft is moved downward .
The receiving roller portion can move up and down between a support position where the receiving roller abuts on the base material and a retracting position where the receiving roller moves downward from the support position.
The presser roller portion is
When the receiving roller portion moves up and down between the supporting position and the retracting position, the receiving roller portion moves up and down together with the receiving roller portion.
A base material support device characterized in that when the receiving roller portion descends toward the retracted position, the arm driving portion arranges the arm at the detached position. A base material support device including two or more roller devices in which long base materials having a circular cross section are arranged at intervals so as to be rotatably supported around an axis.
The roller device is
A receiving roller portion that supports the base material from below so that it can rotate about an axis, and
It is provided with a pressing roller portion that abuts from above on the outer peripheral surface of the base material supported by the receiving roller portion and presses the base material from above while allowing rotation of the base material around the axis.
The presser roller portion is
It contacts the outer peripheral surface of the base material supported by the receiving roller portion from above and rotates in response to the rotation of the base material, and presses the base material from above while allowing rotation of the base material around the axis. With the presser roller,
The presser roller is rotatably supported at the tip portion, and a support shaft is provided at the base end portion located on the side of the receiving roller portion. An arm capable of turning between a pressing position in contact with the base material and a detaching position in which the pressing roller stands up and retracts to the side of the base material.
It has an arm drive unit that moves in the vertical direction at the same time as rotating the support shaft.
The arm drive unit
When the arm is swiveled from the presser position to the detached position, the arm is swiveled so that the presser roller is separated from the base material, and at the same time, the support shaft is moved upward.
When the arm is swiveled from the detached position to the presser position, the arm is swiveled so that the presser roller approaches the base material, and at the same time, the support shaft is moved downward and at the same time, the support shaft is moved downward .
A gear provided at the base end of the arm and
A rack that extends in the vertical direction and meshes with the gears,
With a drive device that moves the base end of the arm in the vertical direction
With
By moving the gear up and down by the drive device, it is possible to rotate the support shaft at the same time as it moves up and down, and to rotate the arm.
The receiving roller portion can move up and down between a support position where the receiving roller abuts on the base material and a retracting position where the receiving roller moves downward from the support position.
The presser roller portion is
When the receiving roller portion moves up and down between the supporting position and the retracting position, the receiving roller portion moves up and down together with the receiving roller portion.
A base material support device characterized in that when the receiving roller portion descends toward the retracted position, the arm driving portion arranges the arm at the detached position. The receiving roller portion includes a pair of receiving rollers arranged at regular intervals so that the rotation axes are parallel to each other.
The base material support device according to any one of claims 1 to 3, wherein the base material can be rotatably supported by placing the base material between the pair of receiving rollers. Rotational driving means for rotating the base material and
The base material support device according to any one of claims 1 to 4, further comprising a base material gripping portion that grips the base material and transmits a rotational force generated by the rotation driving means to the base material. The base material support device according to any one of claims 1 to 5, further comprising a pressing portion that applies an axial pressing force to the base material. A base material support device including two or more roller devices in which long base materials having a circular cross section are arranged at intervals so as to be rotatably supported around an axis.
As the base material, the first base material and the second base material can be supported in parallel.
The roller device is
A first receiving roller portion that supports the first base material from below so that it can rotate about an axis, and
A second receiving roller portion that supports the second base material from below so that it can rotate about an axis, and
The first base material and the second base material supported by the first receiving roller portion and the second receiving roller portion, respectively, are provided with a pressing roller portion that presses the first base material and the second base material from above while allowing rotation around an axis.
The presser roller portion is
A first presser roller that abuts on the outer peripheral surface of the first base material from above, receives rotation of the base material, rotates, and presses the base material from above while allowing rotation around the axis of the first base material. When,
The first pressing roller is rotatably supported at the tip portion, and a support shaft is provided at a base end portion located between the first receiving roller portion and the second receiving roller portion, and the support shaft is centered on the support shaft. As a result, between the pressing position where the first pressing roller is brought into contact with the first base material and the first pressing roller is placed between the first receiving roller portion and the second receiving roller portion. The first arm that can turn between the retracted detachment position and
A second presser roller that abuts on the outer peripheral surface of the second base material from above, receives rotation of the base material, rotates, and presses the base material from above while allowing rotation of the second base material around an axis. When,
The second pressing roller is rotatably supported at the tip portion, and a support shaft is provided at a base end portion located between the first receiving roller portion and the second receiving roller portion, and the support shaft is centered on the support shaft. As a result, between the pressing position where the second pressing roller is brought into contact with the second base material and the second pressing roller is placed between the first receiving roller portion and the second receiving roller portion. A second arm that can turn between the retracted detachment position and
It has an arm drive unit that rotates the support shaft of the first arm and the support shaft of the second arm and at the same time moves in the vertical direction.
The arm drive unit
When the first arm and the second arm are swiveled from the pressing position to the detaching position, the first pressing roller is separated from the first base material and the second pressing roller is separated from the second base material. While the first arm and the second arm are swiveled and at the same time the support shaft of the first arm and the support shaft of the second arm are moved upward.
When the first arm and the second arm are swiveled from the detached position to the pressing position, the first pressing roller approaches the first base material and the second pressing roller approaches the second base material. A base material support device characterized in that the first arm and the second arm are swiveled at the same time, and at the same time, the support shaft of the first arm and the support shaft of the second arm are moved downward. The first receiving roller portion and the second receiving roller portion each include a pair of receiving rollers arranged at regular intervals so that the rotation axes are parallel to each other.
The base material support device according to claim 7, wherein the base material can be rotatably supported by placing the base materials between the pair of receiving rollers. The arm drive unit
The first gear provided at the base end of the first arm and
The second gear provided at the base end of the second arm and
A rack that extends in the vertical direction and is arranged between the first gear and the second gear and meshes with the first gear and the second gear.
A drive device for moving the base end of the first arm and the base end of the second arm in the vertical direction at the same time is provided.
By moving the first gear and the second gear up and down by the driving device, the support shaft of the first arm and the support shaft of the second arm are moved up and down and simultaneously rotated, and the first arm and the second arm are rotated. The base material support device according to claim 7 or 8, wherein the second arm can be swiveled.

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