JP6630153B2 - Rocking device - Google Patents

Description

  The present invention relates to a mechanical device that swings to reciprocate a part. This device can be used as a device for opening and closing a pouring port by driving an open / close valve rod of a device for pouring molten metal up and down.

  As a device for pouring the molten metal into the mold, the opening and closing valve rod for opening and closing the pouring port provided at the bottom of the molten metal holding container is driven upward to open the pouring port, and the molten metal flows downward from the opened pouring port and is provided below. After a predetermined amount of molten metal is poured into the cast mold, a drive device for the on-off valve rod that closes the pouring port by driving the on-off valve rod downward is used. Further, as can be seen in Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-079367), the amount of molten metal flowing out of a pouring port is measured by measuring the weight of a molten metal container and the molten metal held in the container, and a predetermined amount of molten metal is measured. There is also known an apparatus for automatically injecting a mold into a successively fed mold.

JP-A-2002-079367

  As a casting device, a device for automatically casting into a mold that is automatically sent one after another is known, but a casting device for molten metal capable of easily switching between automatic and manual is not known.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a molten metal casting apparatus capable of easily switching between automatic and manual casting of a molten metal, and a swinging device that can be used in the casting apparatus and the like.

Rocking device of the present invention, a base, a first shaft portion includes a first driving unit for reciprocating the said uniaxial portion, and a first oscillating means which is fixed and held to the base portion, the second and the shaft portion includes a second driving unit for reciprocating the said second shaft section, and a second oscillating means which is fixed and held at a first pivotal means and spacing to the base portion, said single unit a first bearing portion which engages with and is located at an end of the second bearing portion and in a direction spaced a distance said first bearing portion and said second bearing portion to be engaged with said second shaft portion, has a pivotal end portion for swinging the member that requires swing, a body portion made of members having a length with the at least one of said first oscillating means and said second oscillating means includes a drive shaft And the corresponding first shaft portion or the second shaft portion fixed at an eccentric position of the drive shaft .

Molten metal pouring device of the present invention, a base, a first shaft portion includes a first driving unit for reciprocating the said uniaxial portion, and a first oscillating means which is fixed and held to the base portion a second shaft portion includes a second driving unit for reciprocating the said second shaft section, and a second oscillating means which is fixed and held at a first pivotal means and spacing to the base portion, said a first bearing portion which engages with uniaxial portion, and a second bearing portion to be engaged with said second shaft portion, the end portion in the direction spaced and spacing said first bearing portion and said second bearing portion Situated a swinging end portion for swinging the member that requires swing, as well as and a body portion made of members having a length with at least one of said first oscillating means and said second swing means, a drive shaft, and said uniaxial portion or said second shaft portion corresponding fixed to eccentric position of the drive shaft, a swing device consisting該搖of該搖operated device end passes And having a opening and closing valve rod for opening and closing the pouring port provided at the bottom of the molten metal holding vessel to be swinging by.

  In the oscillating device of the present invention, one of the two oscillating means, the first oscillating means and the second oscillating means, is used as a moving state, and the other is used as an immobile state. The shaft of the rocking device in this moving state moves the main body upward or downward. And the shaft part of the other immovable rocking means functions as the rocking center axis of the main body. For this reason, the main body swings rightward or leftward about the axis of the swinging means that does not move as the swing center.

  The swing end of the main body moves upward or downward due to the swing of the main body.

  It is possible to cope with such a case that one of the rocking devices of the present invention is driven automatically by a motor or the like and the other is driven manually.

  The molten metal pouring apparatus of the present invention drives an opening / closing valve rod for opening and closing a pouring port provided at the bottom of a molten metal holding vessel which is rocked by a rocking end of the rocking apparatus using the rocking apparatus of the present invention. It is. By automatically driving one of the two rocking means and manually driving the other in the molten metal pouring apparatus, the apparatus can be used for both test casting and mass production use.

  The swing device of the present invention may have a power drive unit that drives one of the first swing unit and the second swing unit and a manual drive unit that drives the other. Further, one of the first rocking means and the second rocking means includes a drive shaft, an arm rotated by the drive shaft, and a first shaft or a second shaft held by the arm. Things.

  Further, the swing end of the swing device of the present invention can activate a rod stopper for opening and closing the discharge port of the molten metal container.

  The rocking device and the molten metal pouring device of the present invention have two rocking means. For this reason, the swing mode can be made into two types, and a highly versatile use is possible. Specifically, by setting one of the rocking means to be automatic and the other to be manual, the mode of use is increased.

It is a perspective view of the molten metal pouring device concerning this embodiment. It is a top view of the molten metal pouring device concerning this embodiment. It is a side view of the molten metal pouring apparatus concerning this embodiment. FIG. 4 is a cross-sectional view of the molten metal pouring apparatus shown in FIG. FIG. 4 is a cross-sectional view of the molten metal pouring apparatus shown in FIG.

[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1, 2, 3, 4, and 5. FIG. The molten metal pouring apparatus 10 of the present embodiment includes a base 2, a first rocking means 3, a second rocking means 4, a main body 5, and a rod stopper 6. The molten metal pouring apparatus 10 is fixed to the upper part of the molten metal container 9, and its discharge port 90 is opened and closed by the plug 6 to control the flow of the molten metal contained in the molten metal container 9 from the discharge port 90. Is what you do.

  As shown in FIG. 3, the base 2 of the molten metal pouring apparatus 10 has a cross section L including a plate-like floor 22 extending in the horizontal direction and a plate-like wall 21 rising vertically from one end of the floor 22. It is a metal-shaped plate-like body having a character shape. A circular through hole 220 is formed in the center of the floor 22 near the wall 21.

  The first swinging means 3 of the molten metal pouring apparatus 10 has a shaft 31 and a pair of bearing members 32 as shown in FIG. The shaft body 31 has an eccentric shaft 311 eccentric from its axis center line 310 at the center in the longitudinal direction, a narrow shaft end 312 at one end of the eccentric shaft 311 and a narrow shaft end 312 at the other end. A wide wide shaft end 313. The wide shaft end 313 has a neck 3131 having a small outer diameter in the middle of the axial direction, and a distal end 3132 further forward of the neck 3131 has a distal end of a lever (not shown) for manual operation. An engagement hole 3130 (shown in FIG. 1) to be inserted and fixed is provided.

  The pair of bearing members 32 include a standing wall portion 321 having a bearing hole 320 therethrough and a foot portion 322 fixed to the floor portion 22 of the base 2 with bolts. The narrow shaft end 312 and the wide shaft end 313 of the shaft body 31 are rotatably fitted and held in the pair of two bearing holes 320. Since each of the two bearing holes 320 and the narrow shaft end 312 and the wide shaft end 313 fitted thereto are coaxial with the shaft center line 310, the shaft body 31 is centered on the shaft center line 310. Rotate. On the other hand, since the eccentric shaft 311 is eccentric from the shaft center line 310, the shaft body 31 rotates around the shaft center line 310 at a predetermined distance from the shaft center line 310 at all times. The eccentric shaft 311 constitutes the first shaft of the present invention.

  As shown in FIG. 4, the second swinging means 4 of the molten metal pouring apparatus 10 includes a drive motor 41, a drive shaft 42 driven by the drive motor 41 and a drive motor 41 mounted on the floor of the base 2. One supporting member 43 to be fixed and the other supporting member 44 for rotatably holding the distal end of the drive shaft 42, a pair of swing arms 45 having one end fixed to the drive shaft 42, and a pair of these swing arms A swing shaft 46 having both ends supported by 45, a cylindrical rotating wheel 47 rotatably held at the center of the swing shaft 46, a bracket 48 fixed to the other support member 44, and a bracket 48 And a fixing means 49 which is slidably held and fixes the swing shaft 46.

  The second rocking means 4 rotates the drive shaft 42 and the rocking arm 45 by the rotation of the drive motor 41, and rocks the rocking shaft 46 held at its tip upward or downward by the rotation of the rocking arm 45. is there. Note that the swing shaft 46 constitutes a second shaft portion of the present invention.

  As shown in FIG. 4, the main body 5 of the molten metal pouring apparatus 10 has a rectangular parallelepiped first bearing 51 having a shaft hole 510 into which the eccentric shaft 311 fits, and a first bearing 51 from one surface thereof. The second bearing portion 52 and the first bearing portion 51 each having a rectangular guide window 520 that protrudes in the horizontal direction and extends in the horizontal direction at the center in the vertical direction. The swing end 53 includes a pair of upper ends 531 integrally fixed and a pair of lower ends 532 integrally fixed to lower portions of the pair of side surfaces. The main body 5 is a horizontally long member having a first bearing 51 at the center in the horizontal direction, a second bearing 52 on one side, and a swing end 53 on the other.

  The eccentric shaft 311 of the first swinging means 3 is rotatably held in the shaft hole 510 of the first bearing portion 51 of the main body 5. The swing shaft 46 of the second swing means 4 is held by a guide window 520 of the second bearing portion 52 via a rotating wheel 47. The rotating wheel 47 is guided by the upper surface and the lower surface of the guide window 520 to guide the guide window. The user can move while sliding or rotating in the direction in which 520 extends.

  Here, the movement of the main body 5 when the first swinging means 3 is fixed without moving and the second swinging means 4 is operated will be described. Since the first swinging means 3 does not move, the eccentric shaft 311 does not move and is in a stationary state. In this state, the second bearing 52 of the main body 5 is moved up and down. That is, when the drive motor 41 is operated, the drive shaft 42 rotates, and the swing shaft 46 moves upward through the pair of swing arms 45. Since the swing shaft 46 is guided by the guide window 520 of the second bearing portion 52 of the main body 5 via the rotating wheel 47, the upward movement of the swing shaft 46 partitions the guide window 520 via the rotating wheel 47. The upper surface to be pressed is pushed upward. Thereby, the second bearing 52 of the main body 5 is moved upward. That is, in the main body 5, the side of the second bearing portion 52 moves upward with the eccentric shaft 311 of the first swinging means 3 as the center of rotation, and the swing end 53 moves downward in the opposite direction.

  Next, the movement of the main body 5 when the second swing means 4 is fixed without moving and the first swing means 3 is operated will be described. Since the second oscillating means 4 does not move, the oscillating shaft 46 does not move and remains stationary. In this state, the distal end of a lever for manual operation (not shown) is pushed into the engaging hole 3130 of the shaft 31 of the first swinging means 3 and fixed, and the lever is manually moved to rotate the shaft 31. The rotation of the shaft body 31 causes the eccentric shaft 311 to rotate about the shaft center line 310. For example, when the shaft 31 is rotated by 90 degrees by moving the lever, for example, the eccentric shaft 311 at the same height as the shaft center line 310 rotates by 90 degrees and is positioned above the shaft center line 310. That is, the eccentric shaft 311 moves in the vertical direction and the horizontal direction by the same length as the amount of eccentricity.

  The eccentric shaft 311 is fitted in a shaft hole 510 of the first bearing 51 of the main body 5. For this reason, the eccentric shaft 311 rotates substantially 90 degrees in the shaft hole 510, and at the same time, moves the main body 5 in the first bearing 51 in the vertical and horizontal directions by the same length as the eccentric amount. The swing shaft 46 of the second swing means 4 is held by a guide window 520 of the second bearing portion 52 of the main body 5 via a rotating wheel 47. Since the swing shaft 46 is fixed without moving, the main body 5 moves relative to the swing shaft 46 via the guide window 520. That is, the movement of the main body 5 in the horizontal direction is enabled mainly by the relative movement with the swing shaft 46 in the direction in which the guide window 520 extends, and the vertical movement of the main body 5 is mainly performed by the guide window 520 and the swing shaft 46. It becomes possible to rotate relative to each other via the rotating wheel 47. That is, in the main body 5, the side of the second bearing portion 52 moves upward about the swing shaft 46 of the second swing means 4, and the swing end portion 53 also moves upward.

  In the description of the operation of the rocking device, the rocking shaft 46 described as not moving may move due to the weight of the main body 5 and may not function as the rocking center. Assuming such a case, a fixing means 49 for fixing the swing shaft 46 is provided in this embodiment. By fixing the swing shaft 46 with the fixing means 49, the swing shaft 46 can be securely fixed, and the function as the center of swing can be reliably achieved.

  In the first swinging means 3 of the present embodiment, no member for fixing the shaft body 31 is provided. However, when it is difficult to fix the shaft 31, means for fixing the shaft 31 can be provided.

  Next, the plug 6 of the molten metal pouring apparatus 10 of the present embodiment will be described together with the molten metal container 9. The rod stopper 6 controls the flow of the molten metal contained in the molten metal container 9 from the discharge port 90.

  As shown in FIGS. 1 and 3, the molten metal container 9 is formed in a container shape from a refractory whose outer surface is mostly covered with an iron shell. This molten metal container 9 is provided with a nozzle 91 having a discharge port 90 having a funnel-shaped cross section at the upper end opening and the bottom.

  A pair of ears 92 projecting outward are provided at portions above the steel covering the outer peripheral surface of the container 9 and facing each other. The pair of ears 92 is for mounting the molten metal pouring device 10 on a support column 922 having a pair of weight sensors 921, and is held by the molten metal pouring device 10 and the molten metal container 9. The total weight of the molten metal can be detected by a weight sensor 921.

  A fixing means (not shown) for detachably fixing the floor portion 22 of the base 2 is provided on the iron skin on the upper end edge of the container 9.

  As shown in FIG. 5, the rod stopper 6 has a bar shape made of a refractory material, has a hemispherical lower end surface 61, a flat upper end surface 62, and has a bar 63 penetrating the upper part thereof in the horizontal direction. . The plug 6 is inserted into the through hole 220 of the floor 22 of the base 2, contacts the opening of the funnel-shaped discharge port 90 of the nozzle 91, closes the discharge port 90, and holds the molten metal held in the molten metal container 9. From flowing out of the discharge port 90.

  On the upper surface of the floor portion 22 having the through hole 220, a cylinder portion 643 having a shaft hole 641 through which the rod plug 6 passes and a pair of windows 642 penetrating in the horizontal direction through which the bar 63 passes is provided at a lower end of the cylinder portion 643. The upper plate 645, a pressing spring 646 provided on the lower end surface of the upper plate 645, and a receiving plate 647 provided at the lower end of the pressing spring 646. A guide 64 is provided.

  The guide 64 is fixed to the floor 22, and the flange 644 has a role of partially closing the through hole 220 of the floor 22. The pressing spring 646 of the guide 64 has a role of pushing down the flat upper end surface 62 of the rod plug 6 via the receiving plate 647.

  A pair of upper end portions 531 is provided with a through hole. A push pin 557 having a washer is inserted through the through hole from below, and the push pin 557 is fixed to the upper end of the push pin 557 by a push pin. It is prevented from falling off from the end 531. The pressing pin 557 is provided with a pressing spring 558, and the pressing spring 558 is held in a compressed state between the washer of the pressing pin 557 and the upper end 531.

  A pair of lower ends 532 of the oscillating end 53 are located below both ends of the bar 63, and have a role of hitting the lower surface of the bar 63 and moving the bar 63 upward when the lower end 532 moves upward. FIG. 5 shows a state where the lower end portion 532 is in contact with the bar 63.

  When the swing end 53 moves downward, that is, when the upper end 531 and the lower end 532 move downward, the lower end 532 is separated from the lower surface of the bar 63 and a space is formed between the lower end 532 and the bar 63.

  On the other hand, the push pin 557 and the push spring 558 held at the upper end 531 also move downward, but the rod plug 6 is already in contact with the opening of the discharge port 90 as shown in FIG. Since it cannot move and stays in that position, the push pin 557 does not move downward and stays in that position. The pressing spring 558 is pressed and compressed between the upper end 531 and the washer of the push pin 557, and further presses the bar 63 downward. The upper end portion of the push pin 557 protrudes above the upper end 531.

  The guide 64 is fixed to the floor 22, and its pressing spring 646 and the receiving plate 647 keep their positions without moving.

  Since the plug 6 has already contacted the opening of the discharge port 90, it cannot move further downward and remains at that position. Since the rod stopper 6 does not move, the bar 63 fixed to the rod stopper 6 naturally also does not move. Therefore, the lower end of the pressing spring 646 and the lower end of the pressing spring 558 held by the pressing pin 557 do not move.

  On the other hand, since the upper ends of the pair of left and right pressing springs 558 are sent downward by the upper end 531, both of the pair of pressing springs 558 are compressed. The bar plug 6 is pressed downward by the pair of compressed pressing springs 558, and the lower end surface of the bar plug 6 is pressed against the discharge port 90 with a stronger force to surely close the discharge port 90.

  When the swing end 53 moves upward from the lowermost end, the bar 63 and the bar plug 6 do not move until the lower end 532 of the swing end 53 hits the lower surface of the bar 63. Since the upper end 531 of the swing end 53 moves upward, the pair of pressing springs 558 is extended, and the pressing force of the springs is reduced.

  When the swing end 53 moves further upward, the lower end 532 raises the bar 63 with which the lower end 532 is in contact. The bar plug 6 integrated with the bar 63 is also lifted upward, and the lower end surface 61 of the bar plug 6 moves upward from the discharge port 90 to open the discharge port 90. The lower end of the center pressing spring 646 is lifted up by the rod stopper 6 together with the receiving plate 647, and the center pressing spring 646 is compressed. The further movement of the swinging end 53 raises the rod stopper 6 and moves against the compressive force of the pressing spring 646.

  The molten metal pouring apparatus 10 of the present embodiment has the above-described configuration.

  The molten metal is put into the molten metal container 9 of the molten metal pouring apparatus 10, a casting mold is placed below the nozzle 91 of the container 9, and the rod stopper 6 is moved upward by operating the molten metal pouring apparatus 10 to discharge the molten metal. By opening the outlet 90, the molten metal can be poured into the mold from the discharge port and casting can be performed. In the molten metal pouring apparatus 10, two types of operations, a manual operation and an automatic operation, can be performed.

  The manual operation is to stop the second swing means 4 of the molten metal pouring apparatus 10 and move the first swing means. As described above, this operation is performed by pushing the distal end of a lever for manual operation (not shown) into the engaging hole 3130 of the shaft 31 of the first rocking means 3 and fixing the lever, and manually operating this lever. The shaft 31 is driven to rotate. Due to the rotation of the shaft 31, the first bearing portion 51 of the main body 5 moves upward as described above, and the main body 5 is moved by the guide window 520 and the swing shaft 46 in which the second swing means 4 does not move. , And swings by relative rotation and relative sliding, so that the swinging end 53 of the main body 5 moves upward in the same manner as the first bearing 51. The rod stopper 6 is moved upward by the swinging end 53, and the lower end surface 61 of the rod stopper 6 opens the discharge port 90, the molten metal flows downward from the discharge port 90, and the molten metal is cast into a lower mold. When the lever is driven in the opposite direction, the main body 5 swings in the opposite direction, the swinging end 53 is lowered, the rod stopper 6 is also moved downward, and the lower end face closes the discharge port 90, so that the molten metal flows out. Stop. Thus, the casting operation can be performed by the manual operation of the lever.

  The automatic operation is to fix the first swinging means 3 and drive the drive motor 41 of the second swinging means 4 as described above. In this automatic operation, the operation of the drive motor 41, the measurement of the molten metal outflow amount by the weight sensor 921, and the supply and discharge of the mold are controlled by a control device (not shown).

  As described above, the molten metal pouring apparatus 10 of this embodiment is an easy-to-use apparatus that can perform both manual operation and automatic operation.

Claims (3)

The base,
A first shaft portion has a first driving unit for reciprocating the said uniaxial portion, and a first oscillating means which is fixed and held to the base section,
A second shaft portion includes a second driving unit for reciprocating the said second shaft section, and a second oscillating means which is fixed and held at a first pivotal means and spacing to the base portion,
A first bearing portion which engages with said uniaxial portion, the end of the second bearing portion and in a direction spaced a distance said first bearing portion and said second bearing portion to be engaged with said second shaft portion A swing end that swings a member that needs to swing, which is located in the portion , and a main body made of a member having a length having:
Has,
At least one of the first rocking means and the second rocking means comprises a drive shaft and the corresponding first shaft portion or the second shaft portion fixed at an eccentric position of the drive shaft. A rocking device characterized by: It said first pivotal means and said second and power drive unit for driving one of the oscillating means, the manual driving unit for driving the other, swinging apparatus according to claim 1, wherein with. 3. The rocking device according to claim 1 , wherein the rocking end activates a rod stopper that opens and closes a discharge port of the molten metal container. 4.

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