JP5838836B2 - Plated trolley for conveying green sand mold with frame - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a frame-mounted raw sand mold transport surface plate used for transporting a framed green sand mold in an automated facility for producing a framed green sand mold.

  In a conventional green sand mold production line with a frame, it is common to use a free roller conveyor to convey a green sand mold with a frame using a surface plate without wheels as shown in FIGS. there were. This surface plate has liners 22 and 23 attached to the lower portions of both sides in the longitudinal direction and the short side direction of the surface plate body 21 to prevent the wear of the surface plate running surface, and the liner 8 protrudes on both sides in the short direction direction. Further, a concave wedge-shaped positioning liner 11 is provided on both sides in the longitudinal direction.

  However, automation of equipment has progressed, and it is necessary not only to carry in and out of the pouring line, but also to extend the cooling line for transporting from the cooling line to the unpacking line and producing graphite spheroidized cast iron (ductile cast iron, FCD). Then, there was a problem that the free roller conveyor had to be laid for a long distance, resulting in high costs.

  Further, as shown in FIGS. 3 to 5 of Patent Document 1, a platen carrier for mold transportation in which a surface plate is attached to the upper surface of a carriage provided with wheels by a connecting plate and a pin, or FIG. 3 of Patent Document 2 As shown, a platen carriage for mold conveyance having wheels on a surface plate is also known. However, since these have a structure in which a gas vent groove is formed on the upper surface of the surface plate, there is a problem that it is difficult to accurately position the fresh sand mold with a frame on the surface plate. In addition, there has been a problem that fresh sand spills on the running surfaces of these platen molds, and the wheels and running surfaces tend to wear out, so they must be replaced frequently.

Japanese Utility Model Publication No. 48-32890 (FIGS. 3 to 5) Registered Utility Model No. 2563503 (FIG. 3)

  The object of the present invention is to solve the above-mentioned conventional problems, and to suppress an increase in cost when the transport distance is increased as compared with a combination of a free roller conveyor and a surface plate, and to add a frame on the surface plate. It is an object of the present invention to provide a frame-mounted raw sand mold conveying surface plate carriage capable of accurately positioning a sand mold and reducing wear of wheels and a running surface.

In order to solve the above-mentioned problems, the platen carrier for transporting fresh sand molds with a frame according to the present invention is such that the upper surface of the main body of the surface plate is moved from one end formed between a number of liners attached to the upper surface. with a template mounting surface provided with a gas release groove reaching the end, on the upper surface, projecting a pair of positioning means according to the position corresponding to the positioning bush framed raw sand molds for conveying, the constant Edition A traveling wheel and a rail scraper are provided on the bottom surface of the carriage main body, and the contact surface with the other surface plate carriage on the surface plate carriage main body prevents wear due to contact with other surface plate carriages. The liner for this is arranged.

According to a second aspect of the present invention, the liner provided on the contact surface with the other surface plate carriage is a concave wedge-shaped liner in which a pair of left and right liners whose end surfaces are inclined in a wedge shape are arranged on both sides of the concave portion. it can.

According to a third aspect of the present invention, a traveling rail for traveling on the free roller conveyor or the driving roller conveyor can be attached to the lower surface of the surface plate carriage main body.

The pair of positioning means may be a positioning pin and a bush .

As in claim 5, the rail scraper may be disposed inside or outside the wheel.

According to a sixth aspect of the present invention, a proximity switch contact for detecting the position of the surface plate carriage can be provided on the surface plate carriage main body.

Further, according to the seventh aspect of the present invention, it is possible to provide a structure in which a displacement guide for positioning the surface plate carriage is provided on the surface plate carriage main body.

Further, according to an eighth aspect of the present invention, the positioning pin may be a pin having a machined convex portion having an appearance in which a truncated cone is placed on a cylinder.

Further, according to a ninth aspect of the present invention, the positioning pin can be configured to be replaceable.

  The framed raw sand mold transport surface plate carriage of the present invention is provided with traveling wheels and a rail scraper, so that only the rails need to be extended even when the transport distance is increased. Since it is not necessary to lay a conveyor, an increase in cost can be suppressed. Further, foreign matters such as fresh sand spilled on the running surface of the rail can be removed by the rail scraper, and wear of the wheels and rails can be prevented.

Moreover, since the platen cart for transporting fresh sand molds with a frame according to the present invention comprises a pair of positioning means aligned with the position corresponding to the positioning bush of the transported fresh sand molds with frames, The position of the green sand mold with a frame can be determined accurately.

Further, the platen carrier for transporting fresh sand mold with a frame according to the present invention includes a gas vent groove extending from one end to the other end formed between a number of liners attached to the upper surface of the surface plate carriage main body. Since the mold mounting surface is used, not only the gas generated from the bottom of the green sand mold can be surely extracted, but also the cleanability inside the gas vent groove can be improved.

Furthermore, the framed raw sand mold transfer surface plate carriage of the present invention has a liner for preventing wear due to contact with other surface plate carriages on the contact surface with the other surface plate carriages of the surface plate carriage main body. Therefore, it is possible to prevent wear due to contact between the surface plate carriages, and when wear occurs, only the liner needs to be replaced, and the service life can be extended.

  In addition, the effect obtained by the invention of claim 2 and below will be sequentially described together with the embodiment.

It is a top view which shows the 1st Embodiment of this invention. It is each half view of the front and front cross section which shows 1st Embodiment. It is a bottom view which shows 1st Embodiment. It is the side surface and partial side surface sectional view which show 1st Embodiment. It is a top view which shows the 2nd Embodiment of this invention. It is the front and partial front sectional view showing a 2nd embodiment. It is a bottom view which shows 2nd Embodiment. It is the side surface and partial side surface sectional view which show 2nd Embodiment. It is a top view which shows the 3rd Embodiment of this invention. It is each half view of the front and front cross section which shows 3rd Embodiment. It is a side view and a partial side sectional view showing a third embodiment. It is each half view of the plane and bottom which shows the 4th Embodiment of this invention. It is each half view of front and front sectional drawing which shows 4th Embodiment. It is the side view and partial side sectional view which show 4th Embodiment. It is the top view and partial bottom view which show the 5th Embodiment of this invention. It is the front view which shows 5th Embodiment, and a partial front sectional view. It is the side view and partial side sectional view which show 5th Embodiment. It is each half view of the plane and bottom which shows the 6th Embodiment of this invention. It is the front view which shows 6th Embodiment, and a partial front sectional view. It is the side view and partial side sectional view which show 6th Embodiment. It is an expanded sectional view of a wheel portion. It is a top view which shows the 7th Embodiment of this invention. It is a front view which shows 7th Embodiment. It is a side view which shows 7th Embodiment. It is side surface sectional drawing which shows 7th Embodiment. It is an expanded sectional view of a wheel portion. It is each half view of the plane and bottom which shows the conventional surface plate truck for green sand mold conveyance. It is each half view of the front view and front sectional view which show the conventional surface plate cart for green sand mold conveyance. It is each half figure of the side view and side sectional view which show the conventional surface-dolly cart for green sand mold conveyance. It is explanatory drawing of a concave wedge-shaped positioning liner.

Hereinafter, preferred embodiments of the present invention will be described.
1-4 is a figure which shows the basic structure of the surface plate carriage for green sand mold conveyance of this invention, 1 is a square surface plate carriage main body, The upper surface of the framed green sand mold to convey is shown on the upper surface. A pair of positioning means 2 is provided in a projecting manner in accordance with the mating dimension of the positioning bush, that is, the position corresponding to the positioning bush . In this embodiment, the positioning means 2 is a positioning pin inserted into the positioning bush, but may be a positioning guide 13 shown in FIGS. The positioning pin in this embodiment is a pin having a machined convex portion having an appearance in which a truncated cone is placed on a cylinder. Since the tip is a truncated cone, it can be easily fitted with the positioning bush of the fresh sand mold with frame. Further, since the positioning pin is configured to be replaceable, more accurate positioning can be performed by replacing the positioning pin even if worn due to impact or friction caused by collision when fitting with the positioning bush. Further, in this embodiment, the pair of positioning means 2 are formed at positions where both end portions in the longitudinal direction of the surface plate carriage main body 1 are projected, but the positions are not necessarily limited thereto.

The upper surface of the surface plate carriage main body 1 is a mold placing surface 9 provided with a gas vent groove 3 extending in the longitudinal direction or the short direction. As shown in FIG. 2, the gas vent groove 3 reaches the other end from one end of the upper surface of the surface plate carriage main body 1 and has the same cross-sectional shape. As a result, the foreign matter dropped into the gas vent groove 3 can be easily removed, and the cleaning property can be improved. The gas vent groove 3 is formed between the liners 10 and 10 by screwing a number of liners 10 having a constant width to the surface plate carriage main body 1 as in the second embodiment shown in FIGS. . With this configuration, there is an advantage that when the mold placing surface 9 is worn, it can be easily replaced.

  As shown in FIGS. 3 and 7, a traveling wheel 4 and a rail scraper 7 are provided on the lower surface of the surface plate carriage main body 1. As shown in FIG. 4, the wheel 4 has a built-in bearing 5 and rotates around a shaft 6 fixed to the platen carriage main body 1.

  The rail scraper 7 is a member for removing foreign substances from the running surface of the wheel 4 (the upper surface of a rail (not shown)), and is a member attached with a rubber plate or the like obliquely to the running direction. 3 and 7, the rail scraper 7 is disposed inside the pair of wheels 4 and 4, but may be disposed outside. By removing foreign matter from the running surface, wear of the wheels 4 and rails can be prevented, and the service life can be extended.

It is preferable to arrange a liner 20 for preventing wear due to contact with other surface plate carriages on the surface where the surface plate carriage main body 1 comes into contact with other surface plate carriages . In the first and second embodiments, the liner 20 is disposed at the leading end of both ends of the surface plate carriage body 1 that protrudes in the longitudinal direction. It can also be arranged on the entire side. Such a liner 20 can prevent wear during contact.

  In the first embodiment, as shown in FIG. 3 and FIG. 4, a side 18 of the surface plate carriage 1 is suspended downward to provide a contact 18 for a proximity switch that detects the position of the surface plate carriage 1. is there. As a result, the position of the platen carriage 1 traveling on the rail can be detected and accurately stopped at a predetermined position.

  In the third embodiment shown in FIGS. 9 to 11, the gas vent groove 3 is in the longitudinal direction, and pins as positioning means 2 are arranged on both sides in the short direction. The wheel 14 is integrated with a rotary shaft 15, and the rotary shaft 15 is rotatably attached to the back surface of the surface plate carriage 1 by a bearing 17.

In addition, concave wedge-shaped liners 11 are provided on both side surfaces in the lateral direction of the surface plate carriage 1 which are contact surfaces with other surface plate carriages. As shown in FIG. 30, the concave wedge-shaped liner 11 has a pair of left and right liners whose end surfaces are inclined in a wedge shape on both sides of the concave portion.

  In the fourth embodiment shown in FIGS. 12 to 14, a traveling rail 12 extending in the longitudinal direction is attached to the lower surface of the surface plate carriage main body 1 provided with the gas vent grooves 3 in the short direction. The traveling rail 12 is used when the platen carriage main body 1 is moved in the longitudinal direction by using a free or driving roller conveyor in a place where the rail for traveling the wheels 4 is not laid. is there. The traveling rail 12 is provided at a position slightly above the lower surface of the wheel 4 so as not to interfere with normal traveling.

  In the fifth embodiment shown in FIGS. 15 to 17, a traveling rail 12 extending in the short direction is attached to the lower surface of the surface plate carriage main body 1 having the gas vent groove 3 in the short direction. This traveling rail 12 is used when the platen carriage main body 1 is moved in the short direction using a free or drive roller conveyor in a place where the rail for running the wheels 4 is not laid. It is. The traveling rail 12 is provided at a position slightly above the lower surface of the wheel 4 so as not to interfere with normal traveling.

  In the sixth embodiment shown in FIG. 18 to FIG. 21, the traveling direction is the short direction of the surface plate carriage main body 1, but the gas vent groove 3 is the longitudinal direction. Further, a traveling rail 12 extending in the longitudinal direction is attached to the lower surface of the surface plate carriage main body 1. As shown in FIG. 21, the wheel 4 incorporating the bearing 5 is fixed to the shaft 6.

  Furthermore, a slip prevention guide 19 is formed at the center of the lower surface of the surface plate carriage main body 1. This slip prevention guide 19 is a suspension of two inverted trapezoidal flat plates separated in the longitudinal direction, and serves to prevent slippage when traveling in the longitudinal direction.

  In the seventh embodiment shown in FIGS. 22 to 26, a single slip prevention guide 19 is suspended from the center of the lower surface of the surface plate carriage main body 1. In addition, a pair of positioning guides 13 are provided at both ends in the longitudinal direction of the surface plate carriage main body 1. The positioning guide 13 has a projecting shape, and is used for positioning the fresh sand mold with a frame, like the positioning means 2 (positioning pin) described above. The wheel 14 is fixed to a rotating shaft 15 as shown in FIG. 26, and the rotating shaft 15 is supported by a bearing 17 incorporating a bearing.

  As described above, the framed sand sand mold transfer surface plate carriage of the present invention can suppress an increase in cost when the transport distance is expanded, and the framed sand sand mold can be accurately placed on the surface plate carriage body. It has many advantages such as being able to position and reducing wear of wheels and running surfaces.

DESCRIPTION OF SYMBOLS 1 Surface plate carriage main body 2 Positioning means 3 Gas vent groove 4 Wheel 5 Bearing 6 Axis 7 Rail scraper 8 Liner 9 Mold mounting surface 10 Liner 11 Recessed wedge liner 12 Traveling rail 13 Positioning guide 14 Wheel 15 Rotating shaft 17 Bearing 18 Bearing 19 with built-in proximity switch 19 Proximity switch 19 Stop guide 20 Liner 21 Surface plate body 22 Liner 23 Liner

Claims (9)

  The upper surface of the surface plate carriage main body is a mold mounting surface having a gas vent groove extending from one end to the other end formed between a number of liners affixed to the upper surface. A pair of positioning means is provided so as to correspond to the position corresponding to the positioning bush of the green sand mold, and a traveling wheel and a rail scraper are provided on the lower surface of the surface plate carriage main body. A platen carrier for transporting a fresh sand mold with a frame, characterized in that a liner for preventing wear due to contact with another platen carriage is disposed on a contact surface with another platen carriage.   The liner provided on the contact surface with another surface plate carriage is a concave wedge liner in which a pair of right and left liners whose end surfaces are inclined in a wedge shape are arranged on both sides of the concave portion. A platen trolley for transporting fresh sand molds with a frame.   2. A platen carrier for conveying a fresh sand mold with a frame according to claim 1, wherein a traveling rail for traveling on a free roller conveyor or a driving roller conveyor is attached to the lower surface of the surface plate carriage main body.   The pair of positioning means are positioning pins and bushes, and the framed gantry for carrying a fresh sand mold according to claim 1.   The said rail scraper is arrange | positioned at the inner side or the outer side of a wheel, The platen cart for fresh sand mold conveyance with a frame of Claim 1 characterized by the above-mentioned.   2. A platen carriage for transporting fresh sand mold with a frame according to claim 1, wherein a contact of a proximity switch for detecting a position of the platen carriage is provided on the platen carriage main body.   2. A platen carriage for transporting fresh sand molds with a frame according to claim 1, wherein the platen body is provided with a slip prevention guide for positioning the platen carriage. 5. The platen carriage with a framed raw sand mold according to claim 4 , wherein the positioning pin is a pin having a machined convex portion having an appearance in which a truncated cone is placed on a cylinder. The said locating pin is comprised so that replacement | exchange is possible, The surface plate carriage for fresh sand mold conveyance with a frame of Claim 8 characterized by the above-mentioned.

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