JP2002079353A - Molding line and casting line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding line and a casting line, in which even in the case of using only one set of metallic flasks, the molding line and the casting line can be driven. SOLUTION: Even in the case of using one set of the flasks in the casting line, the production can be performed by arranging a driving roller conveyor and a flask feeding pusher in the molding line and using a stock conveyor and an automatic storing house in a molten metal pouring part and a cooling part in the flask.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding line and a casting line for molding and pouring using a metal frame.

[0002]

2. Description of the Related Art Conventionally, a molding line and a casting line with a frame for molding and pouring using a metal frame are commonly used. And in this casting line, the metal frame is a molding line, a pouring section,
Castings are produced by circulating a cooling section in the frame and a frame disintegrating section, and their automation is fully advanced (for example, see FIG. 7). In this casting line, the molding line, pouring section, cooling section in the frame,
The leading end and the trailing end of the frame disintegration part are each mechanically connected. However, in this casting line, the entire line could not be moved unless all the metal frames were set in the molding line. This is also the case when molding a small number of molds, and it was necessary to use more energy than necessary to move all the frames. As described above, in the conventional casting line, waste is large when a small amount is produced.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is intended to enable a required number of products to be produced in a molding line or a casting line.
An object of the present invention is to provide a molding line and a casting line for realizing production from only one set of frames. Further, the present invention can freely set the number of frames in the molding line, can freely arrange each device in the casting line, and can disperse (divide) the blocks in the casting line, and can perform human intervention from fully automatic operation. It is an object to provide a molding line and a casting line according to production up to semi-automatic.

[0004]

In order to achieve the above-mentioned object, a molding line according to the present invention comprises a frame separating device provided at one end for inserting an empty frame, a frame aligning device provided at the other end, A mold molding machine and a reversing machine provided between these devices, and a molding roller including at least a driving roller conveyor provided for conveying a metal frame from the frame separation device to the front of the mold molding machine, And a driving roller conveyor provided for transporting the metal frame from the mold making machine to the frame aligning device.

According to the present invention, even in the production using a single set of casting frames, the upper frame and the lower frame are sequentially put into the mold making apparatus,
Forming the upper frame and lower frame respectively from the mold making device, aligning the molded lower frame and upper frame with the frame aligning device, and taking out the resulting frame from the molding line toward the pouring section with the frame aligning device. Can be. In addition, the metal frame can be transported without providing a driving roller conveyor in the molding machine, and the molding machine can be made compact.
Note that the worker may assist in carrying the metal frame into and out of the mold making machine. Further, in the conventional line, since the metal frames are continuously conveyed in a ball-butt state, it is impossible to convey only one set of metal frames.

In order to achieve the above object, a molding line according to a second aspect of the present invention is a molding line according to the first aspect, wherein a metal frame to be conveyed provided before and after outside the mold molding machine is positioned. And a frame feed pusher that uses the metal frame with different strokes for insertion and removal.

According to the present invention, a metal frame can be transported without using a driving roller conveyor in the mold making machine itself. By using a frame feed pusher that uses the metal frame with different strokes for insertion and removal, it is not necessary to increase the stroke of the pusher, and the molding line becomes compact.

According to a third aspect of the present invention, there is provided a molding line according to the first or second aspect, wherein a distance from the frame separating device to the frame aligning device is the same as that of the first or second aspect. It is characterized in that it is configured to be longer than a length corresponding to the number of metal frame lengths and a length obtained by adding a slight gap.

According to the present invention, in a molding line on which a set of molding flasks can be moved, core placing work, reversing work and maintenance work become easy. In the conventional line, since the metal frames are continuously conveyed in a ball-butt state, it is impossible to convey only one set of metal frames. And, in order to make the core putting work easy, to secure enough space on the left and right of the core putting position, arrange a metal frame that does not perform inversion etc. on the left and right of the cast frame that puts the core Had to be kept. For this reason, the molding line was large. Further, in the conventional line, at the time of maintenance, it is necessary to remove all the continuously transported metal frames, and the maintenance is difficult.

In order to achieve the above object, a molding line according to a fourth aspect of the present invention is the molding line according to any one of the first to third aspects, wherein the molding line is provided outside the frame aligning device. Providing a standby place for the upper frame to advance the frame and molding from the upper frame of a set of metal frames, or providing a standby place for the upper frame to advance the lower frame to the frame separation device side Molding from a frame.

According to the present invention, when molding is performed from the upper frame of a set of metal frames, a stand-by place for the upper frame is provided outside the frame aligning device so that the lower frame is advanced. The device and the frame aligning device can have substantially the same configuration. Also, these devices are compact. Conventionally, the frame separating device and the frame aligning device have completely different configurations.

According to a fifth aspect of the present invention, there is provided a casting line according to the present invention, wherein only one set of metal frames is molded using the molding line according to any one of the first to fourth aspects. A frame, and only one set of the frame is configured to be circulated again to the frame separation device of the molding line via the pouring section, the in-frame cooling section, and the frame dispersion section. .

According to the present invention, molding and casting can be performed even in small-quantity production because one frame can be fed in the casting line.

In order to achieve the above object, a casting line according to a sixth aspect of the present invention is the casting line according to the fifth aspect, wherein the number of sets of the metal frames can be put into the casting line from one set. It is characterized in that it can be circulated regardless of the number of sets of metal frames over the maximum number.

According to the present invention, from one frame to all frames,
Operation can be performed regardless of the number of sets of metal frames, and the number of frames in a molding line and a casting line can be set freely.

According to a seventh aspect of the present invention, a casting line according to the present invention is provided.
The molding line, the pouring section, the in-frame cooling section, and the frame dispersion section constituting the casting line are dispersed and arranged in several blocks.

According to the present invention, it is possible to configure the equipment in accordance with the number of products to be produced, and it is not necessary to have an extra frame, so that the installation space can be reduced and the extra frame does not need to be moved. Equipment that does not use a large amount of energy is possible.

In order to attain the above object, a casting line according to claim 8 of the present invention is the casting line according to claim 7, wherein a space between the dispersed blocks is a metal frame formed by a conveyor. It is characterized in that it is connected by at least one of transport, metal frame transport using a hand-held platen truck, unmanned transport truck, and forklift.

According to the present invention, equipment that does not use waste energy can be provided by selecting the transporting means according to the number of products to be produced.

To achieve the above object, a casting line according to claim 9 of the present invention is a casting line according to claims 5 to 7.
The casting line according to any one of the above, wherein a free-flow conveyor is used for the pouring section, an automatic warehouse is used for the cooling section in the frame, and a traverser is used for circulation of the mating frame, It can be operated from one frame.

According to the present invention, the object of the present invention can be easily achieved with only two workers.

Here, in the present invention, the driving roller conveyor provided for conveying the metal frame means a conveyor in which driving rollers are arranged at equal intervals and driven by a motor. The driving roller conveyor is hollow, and is configured to be able to carry a metal frame. The driving roller conveyor is
The invention is not limited to the integral structure, and a plurality of drive roller conveyors may be arranged in series with a gap. Further, the positioning stopper refers to a stopper capable of blocking the traveling direction of the metal frame. Furthermore, a frame feed pusher that uses the metal frame with different strokes for insertion and removal is, for example, 2
A cylinder having a plurality of stages of strokes, wherein the first stage can be used for inserting a metal frame and the second stage can be selectively used for taking out the metal frame.

In the present invention, the distance from the frame separating device to the frame aligning device refers to the length of the molding line. Also,
Being configured to be longer than the length corresponding to the number of metal frame lengths and a small gap means that even when transferring a set of molds, cores can be easily placed. It means that a small gap is provided on the left and right of the metal frame. Unlike the conventional case, for example, a gap for one set of metal frames is always required between the reversing machine and the core receiving position.

In the present invention, the molding line is provided with a frame separation device, a mold molding machine, an upper frame reversing device and a frame aligning device as essential units as main unit devices.・ Equipped with a sand cutter device, a sprue forming device, and a core receiving device. Here, in the present invention, the casting line refers to a line including a molding line, a pouring section, a cooling section in a frame, and a frame variation section. However, depending on the configuration, the units are combined into a block. Further, each unit or block is arranged in a distributed (divided) manner. this is,
This is significantly different from the conventional method in which a molding line, a casting metal part, and the like in the state of a ball are mechanically connected. Here, as long as the molding machine is a machine that alternately molds the upper and lower frames, the type of the molding sand or the mold binder is not limited. There is no limit to the maximum length, and it is better to be compact as long as the core can be placed and turned over.

Further, in the present invention, if an automatic pouring machine is used in the pouring section and an automatic core placing device is used in the molding line, unmanned operation becomes possible. If the number of workers is increased, it is possible to carry using the hand-held platen cart, and the equipment cost can be kept low.

The stand-by place of the upper frame or the lower frame is a place where the metal frame is temporarily held at any end of the molding line in order to separate the alignment frame or align the molding frame. Say. The mechanism does not matter.

The maximum number that can be put into the casting line is as follows: the length of the molding line, the size of the pouring section, the size of the cooling section in the frame, the size of the frame section, the length of the free-flow conveyor, It is determined by the speed of the transfer device and the like.

In the present invention, the hand-held trolley is used for carrying a frame on the stool, and is a combination of the stool and the hand-held trolley. By using this cart, the frame can be conveyed quietly, and defects due to conveyance can be prevented. The free-flow conveyor refers to a conveyor that can convey and accumulate articles on a continuous chain.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on a layout example. 1, 2 and 3 are examples of layouts according to the present invention. FIG. 1 shows an example of two workers, FIG. 2 shows an example of five workers, and FIG. 3 shows an example of ten workers. The equipment capacity is the same for all three cases. FIG.
1 shows a schematic sectional view of the molding line of FIGS. FIG. 5 is a schematic diagram for explaining the transportation of the metal frame before and after the mold making machine. FIG. 6 is a schematic diagram illustrating a standby place provided in the frame aligning device or the frame separating device. 1 to 3 and FIG. 7, the sand processing equipment O has the same size.

FIG. 1 shows an equipment layout under the same production conditions as in FIG. In FIG. 1, the casting line includes a molding line 1, a pouring section 2, an in-frame cooling section 3, a product cooling section 4, and a frame dispersion section 5. Here, the in-frame cooling unit 3 and the product cooling unit 4 are constituted by an automatic warehouse 14, an automatic pouring machine 11 is installed in the pouring unit 2, and a product dropping device U is separately installed. The product can be transported from the automatic warehouse 14 to the frame dispersing device 5 by the unmanned transport cart 12. The product and the attached sand are cooled in the product cooling can 13. The workers are arranged on the molding line 1 and the drop-off device. In addition,
In FIG. 1, a frame can be moved between a molding line 1 and a pouring section 2 by a traverser T1. Similarly, in the traversers T2, T3, T4, the pouring section 2 and the in-frame cooling section 3,
The product cooling section 4 and the frame dispersion section 5 can be connected to each other, and the frame dispersion section 5 and the molding line 1 can be connected to each other. The range of the conventional example (FIG. 7) is indicated by a two-dot chain line. Also, remover
The position of U is free within the installation range.

In FIG. 2, the casting line comprises a molding line 1, a pouring section 2, a cooling section 3 in a frame, and a frame section 5, and a product cooling section 4 and a product removal device U are separately installed. . The pouring section 2 is provided with a conveyor V capable of storing frames so that an arbitrary lot can be poured in addition to the automatic pouring machine 11 for pouring one frame at a time. The number of frames in the line can be arbitrarily increased or decreased. The operator is arranged in the molding line 1, the pouring section 2, the frame disintegrating section 5, the product conveying and sand removing device U. Incidentally, in FIG.
1, the frame can be moved between the molding line 1 and the pouring section 2. Similarly, the pouring section 2 and the in-frame cooling section 3 can be connected to each other by the traverser T2, the in-frame cooling section 3 and the frame displacing section 5 can be connected by T3, and the frame displacing section 5 and the molding line 1 can be connected by T4. I have. Here, since the product cooling unit 4 is disposed away from the in-frame cooling unit 3, the traverser T3 and the product cooling unit 4
During this period, the frame can be transported by a metal frame using a hand-held platen truck (not shown), a forklift 9 or an unmanned transporting truck. The range of the conventional example (FIG. 7) is indicated by a two-dot chain line. The positions of the product cooling unit 4 and the sand remover U are free as long as they are within the installation range.

In FIG. 3, the casting line comprises a molding line 1, a pouring frame cooling section 6 in which a pouring section 2 and a frame cooling section 3 are combined, and a frame dispersing section 5, and a product cooling section 4 and a product cooling section. A sand remover U is separately installed. The worker uses the pouring frame cooling unit 6, the frame dispersing unit 5, and the hand-held platen cart 7 to transport the metal frame between the blocks and to put the core in the molding line, transport the products and collected sand, and remove the sand. U. still,
In FIG. 3, no traverser is used. Instead, it is conveyed by a forklift 9 as needed. still,
The range of the related art (FIG. 7) is indicated by a two-dot chain line. The positions of the product cooling unit 4 and the sand remover U are free as long as they are within the installation range.

FIG. 4 is a schematic sectional view of the molding line of FIGS. In FIG. 4, when the metal frame is set on the frame separation device 104 by the frame transfer device 103, the upper frame 10
2 and the lower frame. The driving roller conveyors 109, 1
10 before the mold making machine 106 and the mold making machine 106
Is provided after. The mold making machine 106 includes only the roller conveyor RC, and does not include the driving roller conveyors 109 and 110. A frame feed pusher 105 is provided in the upstream direction of the mold making machine 106, and alternately feeds metal frames (upper frame, lower frame) to a fixed position of the mold making machine 106.

The position of the drive roller conveyors 109 and 110 before and after the mold making machine 106 is
07 and 108 are provided, and the metal frame can be positioned in cooperation with the frame feed pusher 105.

FIG. 7 shows a conventional equipment layout. In FIG. 7, the casting line includes a molding line 1, a pouring section 2, an in-frame cooling section 3, a product cooling section 4, and a frame dispersion section 5. The operator is arranged so as to also serve as the molding line 1, the pouring section 2 and the sand remover U. The required installation area of the equipment is the range enclosed by the two-dot chain line.

Hereinafter, the operation in the case of using these configurations will be described. Referring to FIGS. 4, 5 and 6, it will be described that the movement from the frame separation to the frame alignment can be performed with only one set of metal frames. Although the metal frame is arranged at the stop position for convenience, it may be anywhere regardless of the number of frames.

In FIGS. 4 and 5, the frame transfer device 103
The metal frame set in the frame separating device 104 is lifted by the lifter 141 of the frame separating device 104, and the upper frame 102 is clamped by the clamp 142 with the driving roller conveyor 109. The lifter 141 is lowered together with the lower frame and the upper frame 102
And the lower frame are separated (FIG. 5A). The upper frame 102 is conveyed by a drive roller conveyor 109 (FIG. 5B), and the molding machine 1
06 (FIG. 5C). Since the mold making machine 106 has only the roller conveyor and does not have the drive roller conveyor 109, the frame feed pusher 105 is lowered to feed the frame to the home position of the mold making machine 106 by the first cylinder (FIG. 5C).

At this time, when there is no frame at a fixed position of the next drive roller conveyor 110 of the mold making machine 106, the frame stopper 108 is closed to perform positioning. If there is a frame, position it with the frame. The frame feed pusher 105 returns, and instead the frame stopper 107 closes to position the frame before and after the mold making machine (FIG. 5D). When the position is determined, the molding is performed by the mold molding machine 106. When the molding is completed, the frame stopper is opened (FIG. 5E), and the first and second cylinders of the frame feed pusher 105 come out, and the frame is pushed from the mold molding machine 106 to the drive roller conveyor 110 (FIG. 5F).

Since the formed frame is not fed in a ball-butted state with the frame brought into close contact with the frame, it can be stopped at a position where it can be easily worked by each drive roller conveyor. The place 119 for storing the core is arranged without being disturbed by the reversing machine 115.

When the upper frame 102 is molded in advance, at the position of the frame alignment (FIGS. 6A to 6C), the lower frame has been advanced first to be lowered onto the surface plate on the frame transfer device 118. The upper frame 102 (FIGS. 6A and 6B) is fed to the upper frame standby driving roller conveyor 117, which is a standby location, and is set on standby (FIG. 6).
C). The lower frame sent later is lowered on the surface plate (not shown), and the upper frame 102 is returned to the position for frame alignment and lowered, and the upper frame 102 is mounted on the lower frame. The combined frame is transported by the frame transfer device 118 to the next pouring section.

As described above, even in the production using only one set of casting flasks, the upper frame and the lower frame separated by the frame separating device are sequentially put into the mold molding device, and the upper frame and the lower frame are separated from the mold molding device. Each of the frames is molded, the molded lower frame and the upper frame are frame-aligned by a frame aligning device, and the formed frame can be taken out of the molding line toward the pouring section by the frame aligning device. In addition, the metal frame can be transported without providing a driving roller conveyor in the molding machine, and the molding machine can be made compact.

Then, through the pouring section, the cooling section in the frame, and the frame disintegrating section shown in FIGS. 1, 2 and 3, the one set of mating frames is circulated again to the frame separating device of the molding line. Is done.

Hereinafter, the post-process of the molding line 1 will be described with reference to FIG. In FIG. 1, a matching frame formed on a forming line 1 is conveyed to a pouring section 2 by a traverser T1. Then, the mating frame poured by the pouring machine 11 is moved to the in-frame cooling unit 3 by the traverser T2 for cooling. Here, the in-frame cooling unit 3 and the product cooling unit 4
Is composed of an automatic warehouse, in which pouring and cooling are controlled. Further, the product cooling unit 4 is provided by the traverser T3.
To the frame disintegration part 5, and similarly by the traverser T4.
It is conveyed from the frame dispersing part 5 to the molding line 1 and can be circulated in the casting line. These controls can be operated by a casting line controller or remote control. Also, the number of gold frames may be one set or several sets,
It can be cycled intermittently or continuously with similar movements up to the maximum number that can be put into the casting line. 1 to 3
In, the sand is supplied to the molding line by the sand processing facility O, and the core is manufactured by the core molding facility 119.

Next, description will be made with reference to FIG. In FIG. 2, the mating frame formed on the molding line 1 is transported to the pouring section 2 by the traverser T1. Here, the molten metal is poured on the free-flow conveyor V of the pouring section 2 by means of a rivet. Alternatively, pouring is performed by pouring machine 11. In this case, it moves by the traverser T2. Then, for cooling, the mating frame is moved to the pouring section 2 and the in-frame cooling section 3 by the traverser T2 when the molten metal is poured by the tribe.
Further, it moves to the product cooling unit 4 via the traverser T3. In this case, a forklift can be used.
Then, after cooling, it is again conveyed to the frame dispersing section 5 via the traverser T3, returned to the molding line 1 by the traverser T4, and circulated in the casting line. In the example of FIG. 3, the in-frame cooling units 3 are arranged in a distributed manner.

Further description will be made with reference to FIG. In FIG. 3, the matching frame formed on the forming line 1 is transported to the pouring section 2 by a trader using a hand-held stool 7. The pouring section 2 and the in-frame cooling section 3 are combined to form a pouring frame in-cooling section 6, in which a worker pours the water using a ladle 10 and is cooled on the spot. Then, for cooling, the mating frame is moved to the product cooling section 4 by the forklift 9 or the automatic guided vehicle. After cooling, it is again conveyed from the product cooling unit 4 to the frame dispersion unit 5 via the forklift 9 and the like, and can be circulated in the casting line.

As is apparent from the above description, the present invention does not use extra energy because the required amount of molding can be performed. In addition, it is possible to arrange equipment and layout according to the production mode. Further, in the example of FIG. 1, the installation area can be reduced to about 1/3 compared with the conventional equipment (FIG. 7).

[0045]

As is apparent from the above description, the molding line according to the present invention comprises a frame separating device provided at one end for empty frame charging, a frame aligning device provided at the other end, and these devices. A mold molding machine and a reversing machine provided at least between the frame separation device and a drive roller conveyor provided for conveying a metal frame from the frame separation device to the front of the mold molding machine; and the mold molding. A driving roller conveyor provided for transporting the metal frame from the machine to the frame aligning apparatus, and a driving roller conveyor is not provided in the mold making machine. By being able to mold as much as possible, there is no need to use extra energy.
The casting line according to the present invention uses only the molding line according to any one of claims 1 to 4 to mold only one set of metal frames to form a mating frame. It is characterized by being configured to be able to circulate again through the pouring section, the in-frame cooling section, and the frame dispersion section to the frame separation device of the molding line, so that casting from one set is possible. Further, the molding line or the casting line according to the present invention can be provided with equipment arrangement or layout according to the production form.
Further, the casting line according to the present invention has a remarkable effect on the industrial world, for example, the installation area can be reduced to about 1/3 as compared with the conventional equipment.

[Brief description of the drawings]

FIG. 1 is a layout diagram of a casting line assuming a two-person operation.

FIG. 2 is a layout diagram of a casting line assuming a five-person operation.

FIG. 3 is a layout diagram of a casting line assuming a 10-person operation.

FIG. 4 is a schematic sectional view of FIG. 1;

FIG. 5 is a schematic diagram for explaining the transportation of a metal frame before and after the mold making machine.

FIG. 6 is a schematic diagram illustrating a standby place provided in a frame aligning device or a frame separating device.

FIG. 7 is a layout diagram of a casting line assuming a two-person operation in a conventional facility.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Molding line 2 Pouring part 3 Cooling part in a frame 4 Product cooling part 5 Frame dispersing part 6 Cooling part in a pouring frame 7 Hand-operated platen cart 8 Conveyor for turning back a platen 9 Forklift 12 Unmanned carrier 14 Automatic warehouse 101 Lower frame 102 Upper frame 103 Frame transfer device 104 Frame separation device 105 Frame feed pusher 106 Mold molding machine 107 Frame stopper 108 Frame stopper 109 Driving roller conveyor 110 Driving roller conveyor 111 Frame reversing machine 113 Driving roller conveyor 115 Reversing machine 116 Frame matching 117 Frame standby drive roller conveyor 118 frame transfer device

Claims (9)

[Claims] At least one of a frame separating device provided at one end for inserting an empty frame, a frame aligning device provided at the other end, and a mold making machine and a reversing machine provided between these devices. In the molding line, a driving roller conveyor provided for conveying the metal frame from the frame separating device to the front of the mold forming machine, and a driving roller conveyor provided for conveying the metal frame after the mold forming machine to the frame aligning device. And a driving roller conveyor. 2. A positioning stopper provided at the front and rear of the mold making machine for positioning a metal frame to be conveyed, and a frame feed pusher which uses the metal frame with different strokes for insertion and removal. 2. The method according to claim 1, wherein
Molding line described in 1. 3. The distance from the frame separating device to the frame aligning device is longer than a length corresponding to the number of metal frame lengths and a length obtained by adding a slight gap. The molding line according to claim 1 or 2. 4. A mold is formed from an upper frame of a set of metal frames by providing a standby position of an upper frame for leading a lower frame outside the frame aligning device, or a lower frame is provided on a frame separating device side. The molding line according to any one of claims 1 to 3, wherein a molding place is formed from a lower frame by providing a standby place for the upper frame to advance the molding line. 5. A molding frame is formed by molding only one set of metal frames using the molding line according to any one of claims 1 to 4, and the mating frame of only one set is formed by a pouring section. A casting line, wherein the casting line is configured to be circulated again through a frame separating unit of the molding line through an in-frame cooling unit and a frame dispersion unit. 6. The method according to claim 5, wherein the number of sets of metal frames ranges from one set to the maximum number that can be put into the casting line, and is circulated regardless of the number of sets of metal frames. The casting line described in 1. 7. A molding line, a pouring section, a cooling section in a frame, and a frame variance section constituting a casting line are dispersedly arranged in several blocks. The described casting line. 8. A method according to claim 1, wherein each of the dispersed blocks is
8. The casting line according to claim 7, wherein the casting line is connected by at least one of a metal frame transport by a transport conveyor, a metal frame transport using a hand-held platen truck, an unmanned transport truck, and a forklift. 9. A free flow conveyor is used for the pouring section, an automatic warehouse is used for the cooling section in the frame, and a traverser is used for circulating the mating frame. The casting line according to any one of claims 5 to 7, wherein: