JPH0634032Y2 - Continuous core molding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a core molding machine configured to continuously mold a core.

<Conventional technology and its problems> The core is formed by blowing sand into a mold for molding a core and firing this sand to mold the core. It was taken out from the inside, the core taken out was sent to the next process, and the mold was used again after cleaning the inside. However, the firing time is the most time-consuming in such a one-stroke cycle. Compared to this firing time, the other sand blowing and cleaning operations are shorter, and the imbalance in the required time for each of these operations Was hindering the smooth progress of the. In other words, if you blow sand and enter the firing process, you cannot do anything, you just have to wait. Further, the equipment cost of the sand blowing device and the take-out device is high, and the low operating rate of these devices also increases the manufacturing cost of the core as a product.

<Means for Solving Problems> Therefore, in the present invention, in order to mold the core continuously and efficiently, the core molding machine is configured as follows. That is, a pair of running paths are installed in parallel with each other, traversers for connecting the running paths are provided at both ends of these running rails, and one side of the running path is used for core removal, die replacement, and sand blowing. A device for performing a stroke is disposed, a device for performing a mold firing process is disposed on the other side of the traveling path, a plurality of carriages are provided on the traveling path so that the carriage can travel freely, and a core molding die is attached to these carriages. The continuous core molding machine is configured to circulate on the traveling path and the traverser.

<Operation> While the die mounted on the trolley is being conveyed by the trolley on the traveling road, it is sequentially sent to the sand blowing step and then to the firing step. In this firing process, the length of the traveling road is set longer because the time required for firing is longer than other traveling processes, and when the firing is completed and finished while circulating with other trucks on the traveling road at a constant speed. The process of taking out the core is reached. Therefore, the sand blowing device and the take-out device can be continuously operated, and the core can be efficiently manufactured.

<Embodiment> An embodiment of a core molding machine according to the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing the entire core molding machine 2, which includes a floor 4
The traveling path 6 is formed in a rectangular shape on the upper side. Rollers 8 are arranged on the traveling path 6 at right angles to the traveling direction, and a carriage 10 circulates on the rollers 8. As shown in FIG. 2, the trolley | bogie 10 mounts | wears with the metal mold | die 12 for core shaping | molding, and it travels on the horizontal traveling path 6a of a horizontal direction in the figure by the drive motor 14. As shown in FIG. Further, in the horizontal running path 6a on the front side in FIG. 1, there are set some working steps to the mold 12, and from the right side of the figure, the core take-out place 16, the mold cleaning place 18, the mold exchange place 20, sand It is a blowing station 22. Therefore, a core take-out device, a mold cleaning device, a mold exchanging device, a sand blowing device and the like (none of them are shown) are provided above the traveling path 6 in accordance with the work contents. When the mold is cleaned at another place, the mold cleaning device of the mold cleaning place 18 can be omitted. Traversers 24 are installed at both ends of the lateral traveling path 6a so as to intersect the lateral traveling path 6a at a right angle. As shown in FIG. 3, the traverser 24 is provided with a hydraulic cylinder 26 along the traverser 24. The hydraulic cylinder 26 allows the traverser truck 28 to reciprocate between the lateral traveling paths 6a. ing. This traverser
A roller 8b is provided on the traveling path 6b of 24, and a roller 30 having the same height as the roller 8 of the lateral traveling path 6a is provided on the upper surface of the traverser truck 28 on the lateral traveling path 6a. It is provided with the same arrangement. On the other hand, the upper part of the lateral running path 6a in the figure has a core firing step 23 over its entire length.

A trolley 32 is laid on the side of the lateral traveling path 6a in parallel with the lateral traveling path 6a, and a panda graph 34 attached to the carriage 10 slidably contacts the trolley 32. A power source for heating the mold 12 is sent to the trolley 32, and the pantograph is attached to a heater (not shown) provided on the carriage 10.
Power through 34. Further, a trolley 36 for control signals is provided in parallel with the trolley 32 on the floor surface 4 side.
The trolley 36 also has a contact 38 (shown in FIG. 3) extended from the trolley 10. Further, the trolley 40 and the trolley 42 are provided so as to be continuous with the floor trolley 32 and the trolley 36, respectively, on the traverser carriage 28, and the trolley 40 and the trolley 42 are provided with a cable 44 provided on the side of the traverser 24. It is possible to connect and supply power to the trolley 10 on the traverser trolley 28. Therefore, during the firing process, the trolley
Upon receiving electricity from 32, the die 12 is heated by the heater. However, from the standpoint of preventing mold cooling, the heater may be energized if necessary in the mold cleaning process, sand blowing process, or traverser 24, in which case not only the trolley 32 on the firing process side but also other Trolley on the way
Power is also supplied from the 32 and the trolley 40 on the traverser truck 28.
The control and the like are performed by the on-board control device 35 received via the control signal trolley 36 or 42. In the above embodiment, the trolley is used to supply power to the carriage, but the power supply method is not limited to this.

As described above, according to the core molding machine 2 of the present invention, a plurality of carriages 10 are arranged in advance on the traveling path 6, and the mold 12 of the core to be molded is mounted on the carriage 10. If placed, the sand is blown into the mold 10 at the sand blowing station 22, and if the sand is blown, the sand is sent onto the traverser carriage 28 of the traverser 24. Trolley
If 10 is placed on the traverser truck 28, traverser 24
The hydraulic cylinders 26 of the
Send to 6a. The trolley 10 sent out is self-propelled in the lateral direction,
It leaves the traverser truck 28 and is placed on the sideways 6a. Trolley
When 10 is placed on the lateral traveling path 6a, the traverser 24 contracts the hydraulic cylinder 26 to return it to the original position, and waits for the next truck 10. Then, when the next trolley 10 is placed, the trolley 10 is sent to the lateral traveling path 6a on the opposite side like the trolley 10 described above. On the other hand, the carriage 10 sent to the firing process is fired as it progresses to the right in the figure in sequence, reaches the traverser 24 at the right end, and is transported to the front side traverse path 6a by the traverser 24, The firing of the core is completed by the time it is conveyed to the core take-out place 16 provided in the lateral traveling path 6a. The core that has been fired is taken out at the core take-out station 16 and conveyed to another process from here, while the die 12 is cleaned inside the die cleaning station 18, and if it is to be exchanged, it is a die exchange station. Replace with another mold 12 at 20, and if there is no need for replacement, sand blower 22
Sand is blown in and the process as described above is followed to burn the core. Therefore, the carriage 10 can be sequentially fed at a constant speed to perform mold cleaning and sand blowing work, and even if mold cleaning and sand blowing work are continuously performed in this way, the firing process is set to be long. As a result, it is possible to secure a sufficient firing time, and it is possible to perform work with different required times at a constant speed on the circulating traveling path 6. Even if the required time is short, there is no waiting state. Therefore, core molding can be efficiently performed.

<Effects of the Invention> As described above, according to the present invention, the core molding machine is provided with a pair of running paths parallel to each other, and traversers for connecting the running paths are provided at both ends of these running rails. On one side of the road, a device for taking out the core, for exchanging molds, and for blowing sand is arranged, and on the other side of the running road, a device for performing a baking process of the die is arranged, and a truck is mounted on the running road. Since multiple cores are provided so that the core molding die is attached to these carriages to circulate on the traveling path and the traverser, a series of operations with different working times such as a blowing stroke and a firing stroke are performed. The cores can be molded efficiently because the steps can be performed continuously in the process and no process waiting for work occurs. Furthermore, if the entire core molding machine is made rectangular, it is possible to effectively utilize the inside of the factory without requiring a lot of space.

[Brief description of drawings]

1 is a plan view showing the whole core molding machine according to the present invention, FIG. 2 is a front view of the core molding machine shown in FIG. 1, and FIG.
The figure is a side view of the core molding machine shown in FIG. In the drawing, 2 is a core molding machine, 6 is a running path, 8,8b, 30 are rollers, 10 is a trolley, 12 is a mold, 16 is a core take-out place, 18 is a mold cleaning place, and 20 is a mold changing place. , 22 is a sand blowing station, 23 is a firing process, 24 is a traverser, 28 is a traverser trolley, 32 and 40 are trolleys, 34 is a pantograph, and 35 is an on-board controller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koichi Ryumi 5-3-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corp. (72) Mamoru Fujii 5-33-8 Shiba, Minato-ku, Tokyo Within Mitsubishi Motors Corporation

Claims (1)

[Scope of utility model registration request] 1. A pair of running paths are installed in parallel with each other, and traversers for connecting the running paths are provided at both ends of these running rails, and one side of the running path is used for taking out a core, replacing a mold, and sandblasting. Arrangement of a device for performing each stroke of the process, and a device for performing a firing process of the mold on the other side of the running path,
A continuous core molding machine characterized in that a plurality of carriages are provided on the traveling path so that they can travel freely, and core molding dies are attached to these carriages so as to circulate on the traveling path and the traverser.