Shaping machine

Abstract

This technology provides a simple configuration for controlling the rotation of a turntable that transports patterns. [Solution] The molding machine includes a turntable that transports the metal frame set on the pattern from a first station where the metal frame is set on the pattern to a second station arranged parallel to the first station; a slewing cylinder having a rod and body that extend and retract in a direction perpendicular to the first rotation axis, which rotates the turntable around the first rotation axis by extending and retracting the rod; a sensor that detects the amount of rotation of the turntable; and a control device that drives the slewing cylinder based on the detection result of the sensor.

Description

Technical Field

[0001] The present disclosure relates to a molding machine.

Background Art

[0002] Patent Document 1 discloses a molding machine. The molding machine has a filling and compressing station that performs filling of sand into a mold frame and compression (squeezing) of the sand in the mold frame. In the filling and compressing station, the mold frame is carried in by a pass line, and the pattern is carried in by a carrier. The upper end of the mold frame is aligned with the lower end of the flask, and the lower end of the mold frame is set with the pattern. Above the flask, a lid member that can advance and retreat in the flask is arranged. A molding space is defined by the lid member, the flask, the mold frame, and the pattern. The molding space is filled with sand, and the sand is squeezed when the lid member descends.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the molding machine described in Patent Document 1, in order for the pattern to be able to travel back and forth between the filling and compressing station and the retracted position, a rotating shaft extending vertically is provided between the filling and compressing station and the retracted position, and it is conceivable to rotate the carrier around the rotating shaft. Thereby, the carrier functions as a turntable, and by rotating the turntable 180 degrees, the pattern at the filling and compressing station can be moved to the retracted position, and the pattern at the retracted position can be moved to the filling and compressing station. Here, in order to accurately control the rotation of the turntable, it is necessary to provide a shock absorber or the like to control the deceleration of the rotation. The present disclosure provides a technique capable of realizing the rotation control of at least the turntable that conveys the pattern with a simple configuration. [Means for solving the problem]

[0005] A molding machine relating to one aspect of this disclosure includes a turntable that transports the metal frame set on the pattern from a first station where the metal frame is set on the pattern to a second station arranged parallel to the first station; a slewing cylinder having a rod and body that extend and retract in a direction perpendicular to the first rotation axis, which rotates the turntable about the first rotation axis by extending and retracting the rod; a sensor that detects the amount of rotation of the turntable; and a control unit that drives the slewing cylinder based on the detection result of the sensor. [Effects of the Invention]

[0006] According to this disclosure, a technology is provided that enables the rotational control of at least a turntable that transports patterns to be realized with a simple configuration. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a perspective view of a framed molding machine according to one embodiment. [Figure 2] Figure 2 is a partial cross-sectional view showing an overview of the framed molding machine shown in Figure 1. [Figure 3] Figure 3 is a partial cross-sectional view illustrating the frame setting process in the frame-type molding machine shown in Figure 1. [Figure 4] Figure 4 is a partial cross-sectional view illustrating the frame loading and unloading process in the frame-type molding machine shown in Figure 1. [Figure 5] Figure 5 is a partial cross-sectional view illustrating the molding space definition process in the framed molding machine shown in Figure 1. [Figure 6] Figure 6 is a partial cross-sectional view illustrating the sand filling process in the framed molding machine shown in Figure 1. [Figure 7] Figure 7 is a partial cross-sectional view illustrating the squeeze process in the framed molding machine shown in Figure 1. [Figure 8]Figure 8 is a partial cross-sectional view illustrating the die-cutting process in the framed molding machine shown in Figure 1. [Figure 9] Figure 9 is a side view showing an example of a turntable for the framed molding machine shown in Figure 1. [Figure 10] Figure 10 is a top view showing an example of a turntable for the framed molding machine shown in Figure 1. [Figure 11] Figure 11 is a top view showing an example of a turntable for the framed molding machine shown in Figure 1. [Figure 12] Figure 12 is a top view showing an example of a turntable for the framed molding machine shown in Figure 1. [Modes for carrying out the invention]

[0008] Embodiments of this disclosure will be described in detail below with reference to the drawings. In the description of the drawings, identical elements are denoted by the same reference numerals, and redundant descriptions are omitted. The dimensional ratios in the drawings do not necessarily correspond to those in the description. The terms "top," "bottom," "left," and "right" are based on the illustrated state and are for convenience only. In the drawings, the X and Y directions are horizontal, and the Z direction is vertical.

[0009] [Overview of framed molding machines] Figure 1 is a perspective view of a mold-making machine with a frame according to one embodiment. The mold-making machine with a frame 1 is a mold-making machine that creates molds with a frame. As shown in Figure 1, the mold-making machine with a frame 1 includes a frame setting station R1 (an example of a first station) and a filling and compression station R2 (an example of a second station). The metal frame 10 is brought into the frame setting station R1 from the direction indicated by arrow D1. At the frame setting station R1, the metal frame 10 is frame-set on the model (pattern). Frame setting means aligning the metal frame 10 with the pattern. The metal frame 10 set on the pattern is brought into the filling and compression station R2, which is located next to the frame setting station R1. At the filling and compression station R2, sand is filled into the metal frame 10. The sand filled inside the metal frame 10 is compressed from above and below by a squeeze mechanism provided in the filling and compression station R2 to form a mold. After that, the mold inside the metal frame 10 is removed from the device. Thus, the framed molding machine 1 molds a mold with a frame. The framed molding machine 1 may mold the upper mold and the lower mold alternately, or it may mold either the upper mold or the lower mold. Below, a molding machine that molds the upper mold and the lower mold alternately will be described as an example.

[0010] [Configuration of a framed molding machine] Figure 2 is a partial cross-sectional view showing an overview of the framed molding machine 1. As shown in Figure 2, the framed molding machine 1 includes a frame 2. The frame 2 supports the components located in the frame setting station R1 and the filling and compression station R2. Metal frames 10 are loaded into the frame setting station R1. The metal frame 10 is a box-shaped frame with open upper and lower ends. The metal frame 10 is supported so as to be movable in the vertical direction by a frame setting cylinder 11 fixed to the frame 2, and moves up and down in accordance with the operation of the frame setting cylinder 11.

[0011] A turntable 12 is positioned at the frame setting station R1 and the filling and compression station R2. The turntable 12 has a main body 13 and a rotating part 14. The main body 13 is a frame and includes a first end 15 and a second end 15A. A first pattern 16 for the upper mold is positioned at the first end 15, and a second pattern 16A for the lower mold is positioned at the second end 15A. The rotating part 14 is provided in the center of the main body 13 and supports the main body 13 so that it can rotate around a vertical rotation axis. Details of the turntable 12 will be described later.

[0012] The frame setting cylinder 11 moves the metal frame 10 downward and places it on the turntable 12, where it is combined with the pattern (the first pattern 16 for the upper mold in Figure 2). The first end 15 and the second end 15A are provided with a first leveling frame 17 and a second leveling frame 17A. Frame fixing brackets may also be provided on the turntable 12. The frame fixing brackets are positioned on the turntable 12 at four locations corresponding to the four corners of the metal frame 10. The frame fixing brackets are positioned to support the metal frame 10 after it has been removed from the mold, preventing interference between the pattern and the mold. The main body 13 rotates 180 degrees around its axis of rotation, moving the first end 15 from the frame setting station R1 to the filling and compression station R2, and moving the second end 15A from the filling and compression station R2 to the frame setting station R1. In this way, the metal frame 10 and the pattern are transported in a frame-set state.

[0013] A sand tank 18 is fixed to the top of frame 2 in the filling and compression station R2. The sand tank 18 stores sand inside for supply to the metal frame 10. The sand tank 18 has openings at its upper and lower ends. A slide gate is provided at the upper end of the sand tank 18, which slides a plate-shaped shielding member horizontally. The upper end of the sand tank 18 is configured to be openable and closable by the operation of the slide gate. A chute (not shown) for introducing sand is located above the sand tank 18, and sand is supplied to the sand tank 18 via the chute.

[0014] The lower end of the sand tank 18 is bifurcated, and a receiving frame 19 is fixed inside the bifurcated structure. The receiving frame 19 is a box-shaped frame body with openings at the upper and lower ends. A nozzle is provided on the side of the receiving frame 19, and the lower end of the sand tank 18 is connected so as to communicate with the nozzle. The sand tank 18 is connected to a compressed air source (not shown), and compressed air at a predetermined pressure is supplied to the sand tank 18. When the slide gate is in the closed state, the compressed air supplied from the upper part of the sand tank 18 is sent toward the lower part of the sand tank 18. The sand in the sand tank 18 is supplied into the receiving frame 19 together with the compressed air.

[0015] An upper squeeze plate 20 is arranged inside the bifurcated structure of the sand tank 18. The upper squeeze plate 20 is supported by an upper squeeze cylinder 21 fixed to the frame 2 so as to be movable in the vertical direction, and moves up and down according to the operation of the upper squeeze cylinder 21. The upper squeeze plate 20 is substantially the same as the size of the opening of the receiving frame 19. By moving downward, the upper squeeze plate 20 moves from the upper surface side to the lower surface side of the receiving frame 19, and by moving upward, it moves from the lower surface side to the upper surface side of the receiving frame 19. Thus, the upper squeeze plate 20 is configured to be movable in the vertical direction within the receiving frame 19.

[0016] A plurality of openings are formed on the lower surface of the upper squeeze plate 20, and a plurality of segment feet 22 that can project according to the shape of the pattern are arranged in the plurality of openings. The mold strength is made uniform by the operation of the plurality of segment feet 22.

[0017] In the filling and compression station R2, the end of the turntable 12 (second end 15A in Figure 2) is located below the mold 19. Below the end of the turntable 12, a table 23 is positioned between it and the upper squeeze plate 20, sandwiching the mold 19, the metal frame (metal frame 10A in Figure 2), the pattern (second pattern 16A in Figure 2), and the end of the turntable 12 (second end 15A in Figure 2). In other words, the lower surface of the upper squeeze plate 20 and the upper surface of the table 23 are positioned facing each other. The table 23 is supported so as to be movable in the vertical direction by a lower squeeze cylinder 24 fixed to the frame 2, and moves up and down in accordance with the operation of the lower squeeze cylinder 24.

[0018] The molding space of the mold is defined by the lower surface of the upper squeeze plate 20, the molding frame 19, the metal frame (metal frame 10A in Figure 2), and the upper surface of the pattern (second pattern 16A in Figure 2). The molding space is formed when the upper squeeze cylinder 21 is operated to move the upper squeeze plate 20 downwards, while the lower squeeze cylinder 24 is operated to move the metal frame (metal frame 10A in Figure 2), the pattern (second pattern 16A in Figure 2), and the end of the turntable 12 (second end 15A in Figure 2) upwards together, and the upper end of the metal frame (metal frame 10A in Figure 2) connects to the lower end of the molding frame 19.

[0019] The molding space is filled with sand stored in the sand tank 18 via the molding frame 19. The upper squeeze cylinder 21 moves the upper squeeze plate 20 so that the distance between the upper squeeze plate 20 and the table 23 changes while the molding space is filled with sand. Specifically, the upper squeeze cylinder 21 moves the upper squeeze plate 20 downwards. The lower squeeze cylinder 24 moves the table 23 so that the distance between the upper squeeze plate 20 and the table 23 changes while the molding space is filled with sand. Specifically, the lower squeeze cylinder 24 moves the table 23 upwards. This causes squeezing by the upper squeeze plate 20 and the table 23. Pressure is applied to the sand in the molding space, and a mold is formed.

[0020] [Control device] The framed molding machine 1 may be equipped with a control device 30. The control device 30 is a computer that includes a control unit such as a processor, a storage unit such as memory, an input / output unit such as an input device and a display device, and a communication unit such as a network card, and controls various parts of the framed molding machine 1, such as the mold sand supply system, compressed air supply system, drive system and power supply system. With this control device 30, an operator can perform command input operations to manage the framed molding machine 1 using the input device, and the operating status of the framed molding machine 1 can be visualized and displayed using the display device. Furthermore, the storage unit of the control device 30 stores control programs for controlling various processes performed by the framed molding machine 1 using the processor, and programs for executing processes in each component of the framed molding machine 1 according to the molding conditions.

[0021] [Modeling process] The molding process according to this embodiment will be outlined. Figures 3 to 8 are partial cross-sectional views illustrating each step of the molding process. First, the frame setting process is performed from the orientation (original position) of the frame-equipped molding machine 1 shown in Figure 2. As shown in Figure 3, at the frame setting station R1, the frame setting cylinder 11 moves the metal frame 10 downward and sets the metal frame 10 on the first pattern 16 placed on the upper surface of the turntable 12.

[0022] Next, the frame loading and unloading process is performed. As shown in Figure 4, the turntable 12 rotates 180 degrees, causing the metal frame 10 with the first pattern 16 set on it to be unloaded from the frame setting station R1 and loaded into the filling and compression station R2. At the same time, the metal frame 10A, which has been squeezed, is unloaded from the filling and compression station R2 and loaded into the frame setting station R1.

[0023] Next, the molding space definition process is performed. As shown in Figure 5, the upper squeeze cylinder 21 moves the upper squeeze plate 20 downward. The lower squeeze cylinder 24 moves the metal frame 10, the first pattern 16, and the first end 15 of the turntable 12 together upward, and the upper end of the metal frame 10 connects to the lower end of the molded frame 19. This defines the molding space S. At the frame setting station R1, the frame setting cylinder 11 raises the metal frame 10A after the squeezing is complete.

[0024] Next, the sand filling process is carried out. As shown in Figure 6, sand is filled into the molding space from the sand tank 18 via the molding frame 19. At this time, the mold set station R1 removes the mold 10A that has been squeezed and brings in a new mold 10B.

[0025] Next, the squeezing process is performed. As shown in Figure 7, the upper squeeze cylinder 21 moves the upper squeeze plate 20 downward, compressing the sand. Then, the lower squeeze cylinder 24 moves the table 23 upward. At this time, the pile frame 19 and the metal frame 10 are connected and cannot move, so the load of the lower squeeze cylinder 24 causes the first leveling frame 17 to contract, and the table 23 and the first end 15 rise by the amount of that contraction. As a result, the sand is compressed.

[0026] Finally, the die-cutting process is performed. First, the first leveling frame 17 moves upward relative to the first end 15, separating the first pattern 16 from the metal frame 10. Next, as shown in Figure 8, the upper squeeze cylinder 21 moves the upper squeeze plate 20 upward. Then, the lower squeeze cylinder 24 moves the table 23 downward. This separates the mold frame 19 from the metal frame 10. At this time, the frame setting process is performed at the frame setting station R1.

[0027] [Turntable and sensor details] Figure 9 is a side view showing an example of a turntable for the framed molding machine shown in Figure 1. As shown in Figure 9, the turntable 12 has a rotating part 14. The rotating part 14 supports the main body 13 so that it can rotate around a first rotation axis in the vertical direction (a virtual line passing through the axis of the rotating part 14).

[0028] A slewing cylinder 40 is connected to the turntable 12. The slewing cylinder 40 is connected, for example, to the rotating part 14 of the turntable 12. The slewing cylinder 40 has a rod 40a and a cylinder body 40b (an example of the body). The rod 40a extends and retracts in a direction perpendicular to the first rotation axis of the rotating part 14, in this case, horizontally.

[0029] The rod 40a has a tip portion 41 that is rotatably connected to the turntable 12 around a second rotation axis 42. The tip portion 41 of the rod 40a is a plate-shaped member and has an axis holding structure consisting of a pair of plate members facing each other vertically. The axis holding structure fixes and holds the upper and lower ends of the second rotation axis 42. The second rotation axis 42 is parallel to the first rotation axis of the rotating part 14.

[0030] The tip 41 of the rod 40a is connected to the rotating part 14 via a connecting member 43. The connecting member 43 is a plate-shaped member and has a first end 43A that is rotatably connected to the second rotation shaft 42 and a second end 43B that is fixed to the rotating part 14. The connecting member 43 also has an arm portion 43C that extends above the second rotation shaft 42. A sensor 45 is positioned directly above the second rotation shaft 42 on the arm portion 43C.

[0031] Sensor 45 detects the amount of rotation of the turntable 12. Sensor 45 may directly or indirectly detect the amount of rotation of the turntable 12. For example, as an example of the amount of rotation of the turntable 12, sensor 45 detects the relative amount of rotation between the turntable 12 and the second rotation axis 42. In the example in Figure 9, sensor 45 is fixed to the turntable 12 via a connecting member 43 and detects the amount of rotation of the second rotation axis 42 relative to the turntable 12. Sensor 45 is, for example, a non-contact optical sensor that detects the amount of rotation of the second rotation axis 42 using light. Sensor 45 is not limited to an optical sensor, and may be a magnetic sensor or a contact-type sensor such as an encoder.

[0032] The cylinder body 40b has a mechanism for extending and retracting the rod 40a. The cylinder body 40b has an end portion 40c that is rotatably connected to the frame 2. The end portion 40c is rotatably supported about a third rotation axis 40d in the vertical direction. The third rotation axis 40d is parallel to the first rotation axis of the rotating part 14.

[0033] The control device 30 described above drives the slewing cylinder 40 based on the detection result of the sensor 45. As a specific example, the control device 30 can change the extension and retraction speed of the slewing cylinder 40 to match the target amount of rotation of the turntable 12 by comparing the target amount of rotation of the turntable 12 with the detection result of the sensor 45 and performing feedback control. This controls the deceleration of the rotation of the turntable 12. The control device 30 may also perform feedback control by comparing a rotation speed pattern, which shows the target amount of rotation of the turntable 12 in relation to time, with the detection result of the sensor 45. In this case, the control device 30 can finely control the rotation of the turntable 12 on a time-by-time basis.

[0034] Figures 10 to 12 are top views showing an example of a turntable for the framed molding machine shown in Figure 1. As shown in Figure 10, the turntable 12 has a main body 13. The main body 13 includes a pair of parallel first frames 13A and a second frame 13B connecting the centers of the pair of first frames 13A. One of the pair of first frames 13A is rectangular in top view, and the other is trapezoidal in top view. A rotating part 14 is provided in the center of the second frame 13B. A first pattern 16 is arranged in the area on the first end 15 side of the turntable 12. A second pattern 16A is arranged in the area on the second end 15A side of the turntable 12.

[0035] The slewing cylinder 40 rotates the turntable 12 around the first rotation axis of the rotating part 14 by extending and retracting its rod 40a. For example, in the example shown in Figure 10, the rod 40a of the slewing cylinder 40 is in the extended state. For the purpose of explaining the sensor detection value, in the state shown in Figure 10, the detection value of the sensor 45, that is, the amount of rotation of the second rotation axis 42 relative to the turntable 12, is set to zero (origin).

[0036] When the rod 40a of the slewing cylinder 40 is retracted from the state shown in Figure 10, the tensile force from the rod 40a is transmitted to the rotating part 14 via the second rotation axis 42 of the tip 41 and the connecting member 43, since the end portion 40c of the slewing cylinder 40 is fixed to the frame 2. As a result, as shown in Figure 11, the turntable 12 rotates 90 degrees counterclockwise from the state shown in Figure 10. The detected value of the sensor 45 corresponds to the amount of rotation of the turntable 12, as is clear from the positional relationship between the arm portion 43C and the tip portion 41 in the figure. In this way, the amount of rotation of the turntable 12 can be observed by detecting the relative amount of rotation between the turntable 12 and the second rotation axis 42.

[0037] When the rod 40a of the slewing cylinder 40 is extended from the state shown in Figure 11, the tension of the rod 40a is transmitted to the rotating part 14 via the second rotation axis 42 of the tip portion 41 and the connecting member 43. As a result, as shown in Figure 12, the turntable 12 rotates 90 degrees counterclockwise from the state shown in Figure 11, that is, rotates 180 degrees counterclockwise from the state shown in Figure 10. The detected value of the sensor 45 corresponds to the amount of rotation of the turntable 12, as is clear from the positional relationship between the arm portion 43C and the tip portion 41 in the figure. In this way, the amount of rotation of the turntable 12 can be observed by detecting the relative amount of rotation between the turntable 12 and the second rotation axis 42.

[0038] The slewing cylinder 40 can also rotate the turntable 12 clockwise by reversing the procedure shown in Figures 10 to 12. In this way, the linear motion of the slewing cylinder 40 is converted into the rotational motion of the turntable 12, and the rotational motion of the turntable 12 exchanges between the first pattern 16 and the second pattern 16A.

[0039] [Summary of Embodiments] In the framed molding machine 1, the amount of rotation of the turntable 12 is detected by a sensor 45, and the slewing cylinder 40 is driven based on the detection result of the sensor 45. Since the slewing cylinder can be driven while feeding back the amount of rotation of the turntable, the deceleration of the turntable's rotation can be precisely controlled. Therefore, there is no need to control the deceleration of the turntable's rotation by providing shock absorbers or the like. Thus, this molding machine can achieve turntable rotation control with a simple configuration.

[0040] In the frame-type molding machine 1, the optimal actuator and stroke length cylinder for frame setting can be used as the frame-setting cylinder 11, and the optimal actuator and stroke length cylinders for squeezing can be used as the upper squeeze cylinder 21 and lower squeeze cylinder 24. Therefore, compared to the case where frame setting and squeezing are performed by a single cylinder in the filling and compression station R2, the frame-type molding machine 1 is more compact and energy consumption can be reduced. Furthermore, the frame-type molding machine 1 does not require the filling and compression station R2 to have a mechanism for loading the metal frame 10. As a result, the height of the filling and compression station R2 can be reduced.

[0041] [Differentiation] Although various exemplary embodiments have been described above, the present invention is not limited to the exemplary embodiments described above, and various omissions, substitutions, and modifications may be made. For example, the framed molding machine 1 had a mechanism for squeezing from two directions, upward and downward, but it may also have a mechanism for squeezing from either one direction. Furthermore, the molding machine of this disclosure may be a frameless molding machine.

[0042] The sensor 45 is not limited to being provided on the turntable 12, but may also be provided on the tip 41 of the rod 40a. In this case, the sensor 45 detects the amount of rotation of the turntable 12 relative to the second rotation axis 42. The amount of rotation of the turntable 12 relative to the second rotation axis 42 is also correlated with the amount of rotation of the turntable. Therefore, even when the sensor 45 is provided on the tip 41 of the rod 40a, rotation control of the turntable 12 can be realized with a simple configuration.

[0043] [Summary of the embodiments of this disclosure] This disclosure includes the following aspects: (Clause 1) A molding machine relating to one aspect of this disclosure includes a turntable that transports the metal frame set on the pattern from a first station where the metal frame is set on the pattern to a second station arranged in parallel with the first station; a slewing cylinder having a rod and body that extend and retract in a direction perpendicular to the first rotation axis, which rotates the turntable about the first rotation axis by extending and retracting the rod; a sensor that detects the amount of rotation of the turntable; and a control device that drives the slewing cylinder based on the detection result of the sensor.

[0044] In this molding machine, the amount of rotation of the turntable is detected by a sensor, and the slewing cylinder is driven based on the sensor's detection result. Since the slewing cylinder can be driven while receiving feedback on the amount of rotation of the turntable, the deceleration of the turntable's rotation can be precisely controlled. Therefore, there is no need to control the deceleration of the turntable's rotation by installing shock absorbers or the like. Thus, this molding machine can achieve turntable rotation control with a simple configuration.

[0045] (Article 2) In the molding machine described in Clause 1, the turntable may transport the die-cut mold and pattern from the second station to the first station. This molding machine can load the mold and pattern into the first station and unload the mold and pattern from the first station in a single rotation.

[0046] (Article 3) In the molding machine described in Clause 1 or 2, the rod has a tip that is rotatably connected to the turntable about a second rotation axis, the second rotation axis is fixed to the tip of the rod and parallel to the first rotation axis, and the body has an end that is rotatably connected to the frame of the molding machine about a third rotation axis, the third rotation axis is parallel to the first rotation axis, and the sensor may detect the relative amount of rotation between the turntable and the second rotation axis. The relative amount of rotation between the turntable and the second rotation axis of the tip of the rod correlates with the amount of rotation of the turntable and can be detected more easily than directly detecting the amount of rotation of the turntable. Therefore, this molding machine can implement turntable rotation control with a simpler configuration.

[0047] (Article 4) In the molding machine described in Clause 3, the sensor may be fixed to the turntable and detect the amount of rotation of the second rotation axis relative to the turntable. [Explanation of Symbols]

[0048] 1...Molding machine with frame, 2...Frame, 10, 10A, 10B...Metal frame, 11...Frame setting cylinder, 12...Turntable, 14...Rotating part, 30...Control device, 40...Slewing cylinder, 40a...Rod, 40b...Cylinder body, 40d...Third rotating shaft, 42...Second rotating shaft, 45...Sensor, R1...Frame setting station, R2...Filling and compression station.

Claims

1. A turntable that transports the metal frame set on the pattern from a first station where the metal frame is set on the pattern to a second station located next to the first station, A slewing cylinder having a rod and body that extend and retract in a direction perpendicular to the first rotation axis, which rotates the turntable around the first rotation axis by extending and retracting the rod, A sensor for detecting the amount of rotation of the turntable, A control device that drives the slewing cylinder based on the detection result of the sensor, A molding machine equipped with the following features.

2. The molding machine according to claim 1, wherein the turntable transports the die-cut metal frame and the pattern from the second station to the first station.

3. The rod has a tip portion that is rotatably connected to the turntable about a second rotation axis, and the second rotation axis is fixed to the tip portion of the rod and is parallel to the first rotation axis. The main body has an end portion that is rotatably connected to the frame of the molding machine about a third rotation axis, and the third rotation axis is parallel to the first rotation axis. The sensor detects the relative amount of rotation between the turntable and the second rotation axis. The molding machine according to claim 1 or 2.

4. The molding machine according to claim 3, wherein the sensor is fixed to the turntable and detects the amount of rotation of the second rotation axis relative to the turntable.

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