JP2017192892A - Substrate support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a base material support device for rotatably supporting a long base material while preventing rampage and bending. SOLUTION: A receiving roller portion that rotatably supports a base material 10 from below and a pressing roller portion that presses the base material from above are provided, and the pressing roller portion includes a pressing roller 32 that abuts on the base material and a pressing end. Along with rotatably supporting the roller, it has a support shaft 35 at the base end located on the side of the receiving roller portion, and the holding position where the holding roller is brought into contact with the base material by falling down around the supporting shaft and standing upright. It has an arm 34 that swivels with a detaching position in which the presser roller is retracted to the side of the base material, and an arm drive unit that rotates the support shaft and at the same time moves in the vertical direction. When the arm turns from the holding position to the release position, the holding roller turns the arm so as to separate from the base material, and at the same time, the support shaft moves upward, and when the arm is turned from the holding position to the holding position, the holding roller moves. A base material support device that rotates the arm so as to approach the base material and at the same time moves the support shaft downward. [Selection diagram] FIG. 10

Description

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

  In order to process a long base material such as a steel pipe, an apparatus for supporting the base material rotatably may be required. For example, it is a case where thermal spraying is performed on the outer surface of a boiler tube used for boiler piping.

  In processing, particles (spraying material) such as metal, ceramics, and cermet melted or semi-molten by heating are sprayed from the spray gun and sprayed onto the surface of the substrate. Hold and rotate by motor. Thereby, a uniform sprayed coating can be formed on the outer peripheral surface of the substrate.

  In addition to thermal spraying, an apparatus that rotatably supports a substrate may be required in various machining processes such as blasting, grinding, and polishing.

  Furthermore, the following patent document 1 discloses a technique of spraying while rotating a long base material.

JP-A-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 is long or the diameter is thin, and the base material is bent by its own weight and the processing accuracy is lowered. Can occur.

  For this reason, in the invention described in Patent Document 1, both ends of the substrate are gripped by the chuck, and the substrate is held horizontally by applying tension from both ends until the substrate is not bent. However, when the length of the base material is long, the diameter is thin, or the weight of the base material is increased, the bending is likely to occur, and the tension applied to the base material is limited.

  In addition, while it is desirable that the tension is large in order to reduce the deflection, it is necessary to suppress the tension to less than the size at which plastic deformation occurs, and the ease of bending depends on the type of substrate (material, diameter, wall thickness, etc.). Since the limit value that does not occur also changes, when various substrates are processed one after another, there are aspects in which the adjustment of the tension is complicated and the processing efficiency is not necessarily good.

  In addition, if the base material is supported vertically, the above-mentioned problem of bending can be avoided, but a long base material having a length of, for example, nearly 10 meters or more than a dozen meters or more can be vertically installed in the factory. Supporting and processing is not realistic.

  On the other hand, it is also conceivable that the substrate is supported by a roller regardless of the tension as described above. A plurality of roller devices each having a pair of rollers arranged at regular intervals so that the base material can be placed are arranged linearly (in the length direction of the base material), and both end portions of the base material are formed by these roller devices. It supports not only the middle part. Even if the length of the substrate becomes long, it can be coped with by increasing the number of roller devices. Further, if the distance between the roller devices is reduced, it is possible to make it difficult for the bending to occur.

  However, if the substrate is simply placed on the roller in this way, the substrate may be violated during processing (floating or wavy from the roller). In particular, when the base material is relatively light and long, when the diameter is thin, when the speed of rotating the base material is high, the base material is prone to rampage, and if such rampage occurs, the processing accuracy decreases, It leads to product quality degradation.

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

  In order to solve the above-described problems and achieve the object, the base material support device according to the present invention is arranged with an interval 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 supports a base material from below so that the base material can be rotated around an axis, and a base material supported by the support roller portion. And a pressing roller portion that presses the base material from above while allowing contact with the outer peripheral surface of the base material from above and allowing rotation about the axis of the base material.

  The presser roller part contacts the outer peripheral surface of the base material supported by the receiving roller part from above and rotates by receiving the rotation of the base material. The presser roller that is pressed from the top, and the presser roller is rotatably supported at the tip, and has a support shaft at the base end located on the side of the receiving roller, and the presser roller is tilted around this support shaft. An arm that can be swung between a press position that is in contact with the base material and a release position that is erected and retracts the press roller to the side of the base material; And an arm driving unit that moves in the direction.

  When the arm drive unit pivots the arm from the presser position to the release position, the arm drive unit rotates the arm so that the presser roller moves away from the base material and simultaneously moves the support shaft upward, while the presser position from the release position to the presser position. When the arm is turned, the arm is turned so that the presser roller approaches the substrate, 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, the base material can be held horizontally and straight. On the other hand, by pressing the substrate with the pressing roller from above in this supported state, the substrate placed on the receiving roller can be prevented 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 manner, both the receiving roller and the presser 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 press roller can be detached from the base material, it does not obstruct the carrying or unloading of the base material to / from the support device.

  The receiving roller section typically includes a pair of receiving rollers arranged at a predetermined interval so that the rotation axes thereof are parallel to each other, and a base material is placed between the pair of receiving rollers. A substrate is rotatably supported.

  The arm drive section typically has a gear (pinion) provided at the base end of the arm, a rack extending in the vertical direction and meshing with the gear, and a drive for moving the base end of the arm in the vertical direction. And moving the gear up and down by the drive device, the support shaft is moved up and down and simultaneously rotated to turn the arm.

  Further, the receiving roller portion can move up and down between a support position where the receiving roller contacts the base material and a retracted position moved downward from the support position. The holding 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 section, and when the receiving roller section descends to the retracted position, the arm drive section places the arm in the disengaged position. May be.

  According to such an aspect, the rollers (the receiving roller and the presser roller) that are in contact with the base material when passing through an apparatus portion that performs processing on the base material (for example, a sprayed portion in an embodiment described later) are used as the base. It is possible to prevent the rollers from getting in the way of processing by separating and retreating from the material.

  Further, the base material support device according to the present invention includes a rotation driving means (for example, a motor) that rotates the base material, and a base that grips the base material and transmits the rotational force generated by the rotation driving means to the base material. A material grip part (for example, chuck) may be provided.

  Furthermore, you may provide the press part which applies the axial direction pressing force with respect to a base material, and if such a pressing force is applied during a process, the base material can be prevented more reliably.

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

  Specifically, the apparatus includes a base material support device including two or more roller devices arranged so as to be capable of rotatably supporting a long base material having a circular cross section around an axis. However, the roller device supports the first base material from below so that the first base material and the second base material can be supported in parallel as the base material so that the first base material can be rotated around the axis. A second receiving roller part that supports the second base material from below so that the second base material can be rotated about the axis, and a first base material and a second base material supported by the first receiving roller part and the second receiving roller part, respectively. A pressing roller portion that presses the material from above while allowing rotation around the axis.

  Further, the presser roller portion contacts the outer peripheral surface of the first base material from above and receives the rotation of the base material to rotate, and allows the base material to rotate upward while allowing rotation around the axis of the first base material. A first presser roller that presses from the first end, and a first presser roller rotatably supported at the tip, and a support shaft at a base end located between the first receiving roller part and the second receiving roller part, Centering on this support shaft, the presser position where the first presser roller is brought into contact with the first base material and the first presser roller standing up between the first receiving roller part and the second receiving roller part. The first arm capable of turning between the retracted and retracted position, and the outer surface of the second base material is contacted from above and rotated by the rotation of the base material. A second presser roller that presses the substrate from above while allowing rotation around the shaft, and a second presser roller that rotates at the tip And has a support shaft at a base end portion located between the first receiving roller portion and the second receiving roller portion, and the second presser roller is tilted around the support shaft and the second presser roller is moved to the second base material. A second arm capable of rotating between a press position brought into contact with the head and a disengagement position in which the second press roller is raised and retracted between the first receiving roller portion and the second receiving roller portion And an arm driving unit that rotates the support shaft of the first arm and the support shaft of the second arm and simultaneously moves in the vertical direction.

  Further, when the arm drive unit turns the first arm and the second arm from the press position to the release position, the first press roller is separated from the first base material and the second press 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 turned from the disengagement position to the presser position, the arm drive unit causes the first presser roller to approach the first base material and the second presser roller to approach the second base material. The first arm and the second arm are pivoted simultaneously, and at the same time, the support shaft of the first arm and the support shaft of the second arm are moved downward.

  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, the first gear and the second gear extending in the vertical direction. A rack that is arranged between the gear and meshes with the first gear and the second gear, and a driving device that simultaneously moves the base end of the first arm and the base end of the second arm in the vertical direction, The first gear and the second gear are moved up and down by the driving device, so that the support shaft of the first arm and the support shaft of the second arm are moved up and down at the same time, and the first arm and the second arm are turned. It is possible to make it possible.

  The present invention can preferably support a long member having a length that is larger than its diameter, but the type of substrate (use, constituent material, etc.) to be supported is not particularly limited. Suitable for supporting metal pipes such as boiler tubes used for boiler piping, for example, but can support various other materials (in addition to metals, such as resin and wood) and substrates for applications It is. The substrate 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 types of processing such as thermal spraying, blasting, grinding (such as a lathe), and polishing.

  According to the base material support device of the present invention, it is possible to support a long base material so as to be able to rotate horizontally while preventing rampage and bending.

  Other objects, features, and advantages of the present invention will become apparent from the following description of embodiments of the present invention described with reference to the drawings. In addition, in each figure, the same code | symbol shows the same or an equivalent part.

FIG. 1 is a side view schematically showing a substrate support device according to an embodiment of the present invention. FIG. 2 is a plan view schematically showing the substrate supporting apparatus 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 where the pressing roller is detached) of the base material supporting device according to the embodiment. FIG. 7 is a side view showing a roller device (a state where the pressing roller is detached) of the base material supporting device according to the embodiment. FIG. 8 is a front view showing a roller device (a state where 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 where 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. 1-2, the base material support apparatus which concerns on one Embodiment of this invention rotates the base material 10 (10a, 10b) which is a process target by roller 23,24,32 in order to perform a thermal spraying process. It is a device that supports it. The base material 10 is a steel pipe such as a boiler tube, for example, and a plurality of roller devices 21a, 21b, 21c, 21d, 21e arranged in the length direction (front-rear direction) of the base material 10 with a certain interval therebetween. , 21f, 21g supports the base material 10 horizontally. 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 simultaneously. The two base materials 10a and 10b are supported in parallel using the portions 11a and 11b, respectively.

  In each of the support portions 11a and 11b, receiving rollers 23 and 24 of a roller device 21a to 21g, which will be described in detail later with reference to FIGS. A motor 14 that rotates the shaft 10 around an axis, a chuck 15 that grips one end (rear end) of the substrate 10 and transmits the rotation of the motor 14 to the substrate 10, and the other end (front end) of the substrate 10 And a pressing portion 16 that applies an axial compressive force to the base material 10.

  Moreover, each support part 11a, 11b is provided with the thermal spraying part 17 which performs a thermal spraying process. Each thermal spray unit 17 includes a thermal spray gun 18 that sprays 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 at a position vertically below the thermal spray gun 18 in order to receive the thermal spray material sprayed from the thermal spray gun 18. The thermal spraying part 17 is fixed, and the substrate 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 carriage 12 includes 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 front, back, left, right, up and down directions are displayed, and the present embodiment will be described based on these directions.

  As shown in FIGS. 3 to 5, each of the roller devices 21 a to 21 g that support the base material 10 includes a receiving roller portion (first receiving roller portion) that supports the first base material 10 a from below in the first support portion 11 a. 22a, a receiving roller portion (second receiving roller portion) 22b for supporting the second base material 10b from below in the second support portion 11b, and a presser for pressing the first base material 10a and the second base material 10b from above. A roller unit 31 and a main air cylinder 51 are provided. The receiving roller portions 22a and 22b and the pressing roller portion 31 are installed on the main frame 53, and the receiving roller portions 22a and 22b and the entire pressing roller portion 31 are moved up and down by the main air cylinder 51 through the main frame 53. I can do it.

  A pair of receiving roller portions 22a and 22b respectively arranged at the right end portion and the left end portion of the main frame 53 are arranged in a pair on the left and right sides with an interval smaller than the outer diameter of the base material 10 so that the base material 10 can be placed. Receiving rollers 23 and 24 are provided. These receiving rollers 23 and 24 are rotatably supported between support plates 25 arranged in the front and rear, and rotate freely (see arrow C) in response to the rotation of the substrate 10 (see arrow B). I can do it.

  On the other hand, the pressing roller unit 31 includes a pressing roller 32 that comes into contact with 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. A gear 36 fixed to the base end of the arm 34, a rack 41 that meshes with the gear 36, an arm support plate 37 that rotatably supports the arm 34, and an arm 34 that moves up and down via the arm support plate 37. And a secondary air cylinder 52 to be moved. The arm 34 and the gear 36 are rotatably supported with respect to the arm support plate 37 by a support shaft 35 provided at the base end portion of the arm 34. Also, the presser roller 32 can rotate freely (see arrow D) in response to the rotation of the base material 10 in the same manner as the receiving rollers 23 and 24.

  The pressing roller 32, the arm 34, and the gear 36 are provided in 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). The rack 41 has teeth 42 on both left and right sides, the right tooth 42 is a gear (first gear) 36 a fixed to the base end of the right arm 34, and the left tooth 42 is a base of the left arm 34. The gears (second gears) 36b fixed to the end portions mesh with each other.

  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. .

  As shown in FIGS. 6 to 7, when the sub-frame 54 is moved upward by the sub-air cylinder 52, the left and right arms 34 also move upward, but the rack 41 fixed to the main frame 53 moves. do not do. For this reason, 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), and each arm 34 is in a state of standing substantially vertically as shown in FIGS. 6 to 7 from the substantially horizontal state shown in FIGS. Moves from the presser position shown in FIGS. 3 to 5 to the disengagement position shown in FIGS.

  If the presser roller 32 is moved to the disengagement position in this manner, the base material 10 can be picked up (lifted) from above by, for example, a crane. In addition, a new base material can be carried onto the receiving rollers 23 and 24.

  Furthermore, a part of the roller devices 21 a to 21 g that support the base material 10 can be retracted from the base material 10. For example, some of the roller devices 21d among the roller devices 21a to 21g arranged in a large number as shown in FIGS. 1 to 2 are main frame 53 by the main air cylinder 51 as shown in FIGS. Is moved downward. 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 are moved from the base material 10 supported by the other roller devices 21a to 21c and 21e to 21g. Leave.

  When the presser roller 32 is removed and the receiving rollers 23 and 24 are retracted to the retracted position as described above, these rollers 23, 24 and 32 are passed through the sprayed portion 17 (see FIGS. 1 and 2). Without interfering with the processing (the presser roller 32 does not prevent spraying of the sprayed material, and the receiving rollers 23 and 24 do not collide with the spraying tray 19), by other roller devices 21a to 21c and 21e to 21g. While maintaining the support of the base material 10, it is possible to move the base material 10 and proceed with the processing.

  The operation control of the main air cylinder 51 and the sub air cylinder 52 (each roller device 21a to 21g) can be controlled by a computer in conjunction with the movement of the base material 10 (cart 12), and the roller passing through the sprayed portion 17 The air cylinders 51 and 52 of the devices 21a to 21g are operated to move the presser roller 32 to the disengaged position and the receiving rollers 23 and 24 to the retracted position. After passing, the receiving rollers 23 and 24 are moved to the supporting position. The presser roller 32 may be returned to the presser position.

  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 presser roller 32 can be pressed against the pair of receiving rollers 23, 24 to press the base material 10, 20 by contacting the top (uppermost position) of the base material 10, 20 or a position as close as possible to the position. Although it is preferable in that the base materials 10 and 20 are stably held at the three points of the roller 32, according to the present embodiment, the arm 34 (the gear 36) is rotated (arrow E) as well as simply turning the arm 34. Accordingly, the support shaft 35 of the arm 34 is moved upward (see arrow F). For example, when supporting the base material 20 having a large outer diameter, the support shaft 35 of the arm 34 is moved upward. Accordingly, the presser roller 32 can be brought into contact with a position closer to the top as compared with the structure in which the arm 34 simply turns (see reference numeral G), and the base material 20 can be stably held. .

  Furthermore, according to the present embodiment, both the turning of the arm 34 and the vertical movement of the support shaft 35 can be performed simultaneously with a single cylinder (sub air cylinder 52). In addition, it can be applied to a processing apparatus that can take only a small space, and is advantageous in terms of manufacturing cost.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these, It is clear to those skilled in the art that a various change can be made within the range as described in a claim. .

  For example, in the above-described embodiment, a rack and a gear are used for the operation of the arm. However, the arm can be similarly changed to operate using a pin, a wire, a belt, a friction plate, or the like. Moreover, although it was set as the apparatus which supports two base materials in the said embodiment, it is good also as an apparatus which supports one base material, and three or more base materials are provided by providing three or more support parts. A supportable device can be similarly constructed. Furthermore, although the support device can travel (move) in the embodiment, the support device of the present invention may have a structure that is fixed to a floor or the like and cannot travel. The “processing” referred to in the present invention is not limited to thermal spraying, but includes various processing as described above.

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 carts 13 wheels 14 motor 15 chuck 16 pressing part 17 spraying part 18 spraying gun 19 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 portion 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 substrate support device comprising two or more roller devices arranged so as to be capable of rotatably supporting a long substrate having a circular cross section around an axis,
The roller device is
A receiving roller part that supports the base material from below so that the base material can be rotated around an axis;
A pressing roller portion that comes into contact with the outer peripheral surface of the base material supported by the receiving roller portion from above and presses the base material from above while allowing rotation around the axis of the base material.
The presser roller portion is
Abutting from above on the outer peripheral surface of the base material supported by the receiving roller portion, the base material is rotated by receiving the rotation of the base material, and the base material is pressed from above while allowing rotation around the axis of the base material. A presser roller,
The presser roller is rotatably supported at the distal end portion, and has a support shaft at a base end portion located on the side of the receiving roller portion, and the presser roller is tilted around the support shaft and is placed on the base material. An arm capable of turning between a press position abutted on and a disengagement position where the press roller is raised and retracted to the side of the base material;
An arm drive unit that moves up and down at the same time as rotating the support shaft,
The arm drive unit is
When turning the arm from the presser position to the disengagement position, the arm is turned so that the presser roller is separated from the base material, and at the same time the support shaft is moved upward,
When rotating the arm from the disengagement position to the presser position, the support shaft is moved downward simultaneously with turning the arm so that the presser roller approaches the base material. . The receiving roller portion includes a pair of receiving rollers arranged at a predetermined interval so that the rotation shafts are parallel to each other.
The base material support apparatus according to claim 1, wherein the base material can be rotatably supported by placing the base material between the pair of receiving rollers. The arm drive unit is
A gear provided at the proximal end of the arm;
A rack extending in the vertical direction and meshing with the gear;
A drive device for moving the base end of the arm in the vertical direction,
The base material support device according to claim 1, wherein the gear is moved up and down by the driving device, whereby the support shaft is moved up and down and simultaneously rotated to turn the arm. The receiving roller portion can move up and down between a supporting position where the receiving roller contacts the base material and a retracted position moved downward from the supporting position,
The presser roller portion is
When the receiving roller part moves up and down between the support position and the retracted position, it moves up and down together with the receiving roller part,
The base material support device according to any one of claims 1 to 3, wherein when the receiving roller unit is lowered toward the retracted position, the arm driving unit arranges the arm at the disengaged position. A rotation driving means for rotating the base material;
The base material support apparatus according to any one of claims 1 to 4, further comprising: a base material gripping part that grips the base material and transmits a rotational force generated by the rotation driving unit 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 substrate support device comprising two or more roller devices arranged so as to be capable of rotatably supporting a long substrate having a circular cross section around an axis,
In order to support the first substrate and the second substrate in parallel as the substrate,
The roller device is
A first receiving roller portion for supporting the first base material from below so that the first base material can be rotated around an axis;
A second receiving roller portion for supporting the second base material from below so that the second base material can be rotated around an axis;
A pressing roller portion that presses the first base material and the second base material supported respectively by the first receiving roller portion and the second receiving roller portion from above while allowing rotation around an axis;
The presser roller portion is
A first presser roller that contacts the outer peripheral surface of the first base material from above, rotates by receiving the rotation of the base material, and presses the base material from above while allowing rotation around the axis of the first base material When,
The first presser roller is rotatably supported at the distal end portion, and has a support shaft at a base end portion located between the first receiving roller portion and the second receiving roller portion, and the support shaft is the center. As a pressing position where the first pressing roller is brought into contact with the first base material, and the first pressing roller is erected between the first receiving roller portion and the second receiving roller portion. A first arm capable of swiveling between a retracted and retracted position;
A second presser roller that contacts the outer peripheral surface of the second base material from above, rotates by receiving the rotation of the base material, and presses the base material from above while allowing rotation around the axis of the second base material When,
The second presser roller is rotatably supported at the distal end 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. As a pressing position where the second pressing roller is brought into contact with the second base material, and the second pressing roller is erected between the first receiving roller portion and the second receiving roller portion. A second arm capable of swiveling between the retracted and retracted position;
An arm drive unit that moves up and down at the same time as rotating the support shaft of the first arm and the support shaft of the second arm;
The arm drive unit is
When the first arm and the second arm are swung from the presser position to the release position, the first presser roller is separated from the first base material and the second presser roller is separated from the second base material. While turning the first arm and the second arm simultaneously and moving the support shaft of the first arm and the support shaft of the second arm upward,
When rotating the first arm and the second arm from the disengagement position to the presser position, the first presser roller approaches the first base material and the second presser roller approaches the second base material. The base material support device is characterized in that the first arm and the second arm are swung at the same time and 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 a predetermined interval so that the rotation shafts are parallel to each other,
The base material support apparatus according to claim 7, wherein the base material can be rotatably supported by placing the base material between the pair of receiving rollers. The arm drive unit is
A first gear provided at the base end of the first arm;
A second gear provided at the base end of the second arm;
A rack extending in the vertical direction and disposed between the first gear and the second gear and meshing with the first gear and the second gear;
A driving device that simultaneously moves the base end of the first arm and the base end of the second arm in the vertical direction;
The first gear and the second gear are moved up and down by the driving device, so that the support shaft of the first arm and the support shaft of the second arm are moved up and down at the same time, and the first arm and the The base material support device according to claim 7 or 8, wherein the second arm can be turned.

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