JP2553498Y2 - Slip casting type fixing structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a fixing structure of a slurry casting mold for fixing a slurry casting mold used for molding a molding base by a slurry casting method to a base of a molding apparatus.

[0002]

2. Description of the Related Art As shown in FIG. 3, a molding apparatus used for slurry casting is provided with separable slurry casting molds 1 and 2. The lower slurry casting mold 1 includes a rigid casing 3 made of a material such as steel, and a filtration layer 4 formed inside the casing 3 and made of a porous synthetic resin material or gypsum. The upper slurry casting mold 2 includes a casing 5 and a filtration layer 6, like the lower slurry casting mold 1. When the upper and lower slurry casting molds 1 and 2 are combined and integrated, a slurry casting space S is formed between the filtration layers 4 and 6, and moisture is removed from the slurry filled in the slurry casting space S. Filter layers 4, 6
Then, a molding base M such as a washbasin base is formed in the slurry casting space S. The molding base M is separated from the upper and lower slurry casting molds 1 and 2 and then removed.

[0003] The slurry casting mold 1 is fixed to a base 5 of a molding apparatus so that the mold can be exchanged. The base 5 is attached to a moving operation tool such as a hydraulic cylinder or the like, and moves the slurry casting mold 1 from a casting position where the slurry casting space S is formed to a removal position where the molding base M is removed. It is to move back and forth. As an example of the fixing structure of the slurry casting mold 1, each pressing plate 6 is brought into contact with each leg 3 a of the casing 3, and each pressing plate 6 is
Is pressed.

[0004] Although not shown, other than the fixing structure, a pressing tool is joined to an output end of a pressing operation tool composed of an air cylinder or the like, and a stroke of the pressing tool is used to separate the casing 3 from the base 5. Leg 3a from the retracted position without obstruction
To the lock position where the key is pressed. The upper slurry casting mold 2 is fixed to a base (not shown) in the same manner as the slurry casting mold 1.

[0005]

Since the conventional fixing structure of the slurry casting mold is exposed outside the casing 3, the water for facilitating the removal of the mold and the cleaning of the mold during the removal of the molding base are used. Take the splashed washing water or mud, etc. for that reason,
In the conventional structure, it is necessary to frequently perform maintenance and inspection for preventing rust and maintenance and inspection of the pressing operation tool, which is very troublesome. An object of the present invention is to provide a slurry-casting type fixing structure that is not exposed to water or the like in order to solve the above-mentioned problems.

[0006]

Means adopted by the present invention is a slurry casting mold fixing structure for fixing a casing forming a slurry casting mold to a base in a fixing surface of the casing abutting on the base. A concave portion is provided on the inside, a locking piece facing the concave portion is provided in the casing, a lock device is provided in an area of the base facing the concave portion, and a lock piece provided in the lock device is provided on the casing. A mud casting type fixing structure characterized by moving forward and backward from a standby position which does not hinder detachment from the base to a lock position engaged with the locking piece.

[0007]

Since the locking piece and the lock operation tool are not exposed to the outside of the casing, there is no direct contact with demolding promoting water or washing water. When the chuck piece is retracted to the standby position by operating the lock operating tool, the slurry casting mold can be replaced. Under the condition that the mud cast casing is in contact with the base,
When the chuck piece is advanced to the lock position by operating the lock operating tool, the chuck piece engages with the locking piece to fix the casing to the base.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the drawings. FIG. 1 is a longitudinal sectional view showing an embodiment of a slurry casting type fixing structure according to the present invention (hereinafter referred to as “the present invention structure”). A feature of the structure of the present invention is that a locking piece 18 and a locking device 22 are provided in an inner region of the fixing surface 13b abutting on the base 15 of the casing 13.

The slurry casting mold 11 is provided with a concave portion C inside the fixing surface 13b of the casing 13 which is in contact with the base 15. The recess C is provided with the leg 13 a of the casing 13.
, And is separated from the filtration layer 14 by a partition plate 13c. At the four corners of the concave portion C, locking pieces 18, 18... Facing the concave portion C are provided integrally with or separately from the casing 13, and the leg portion 13a of the casing 13 or the partition plate 1 is provided.
3c and the like. Each locking piece 18 has a slope 18
a is formed.

The base 15 is provided with locking devices 22, 22 in a concave region D facing the concave C of the casing 13. Each lock device 22 includes operating tools 17 and 17 including two air cylinders and the like, and a lock piece 16 attached to an output shaft of each operating tool 17. Each of the lock pieces 16 advances and retreats from a standby position B at which there is no hindrance to the detachment of the casing 13 from the base 15 by operation of the operating tool 17 to a lock position A at which the lock pieces 18 are engaged. The locking piece 16 is formed with a slope 16 a that is paired with the slope 18 a of the locking piece 18. When the lock piece 16 advances to the lock position A, the casing 13 is connected to the base 15 via the locking piece 18.
Press it.

The leg 13a of the casing 13 and the base 1
5, a seal ring 21 is provided to prevent water or the like from entering the concave portion C of the casing 13 and the concave region D of the base 15. The base 15 is provided with a drainage channel 19 at the bottom of the recessed area D so as to discharge water or the like that has entered. The base 15 has positioning projections 15a and 15b protruding as necessary outside the region where the casing 13 abuts, and abuts the leg 13a of the casing 13 so that the leg 13a is at a predetermined position. .

Next, the operation of the structure of the present invention will be described. First,
The lock pieces 16 of the lock devices 22, 22 are retracted to the standby position B by operating the operation tool 17. In this state, after carrying the slurry casting mold 11 to be replaced above the base 15,
The slurry casting mold 11 is brought close to the base 15 and the casing 13
Abut on the base 15. Next, the lock pieces 16 of the lock devices 22, 22 are advanced to the lock position A by operating the operating tool 17, and the lock pieces 16 are engaged with the respective lock pieces 18 to fix the casing 13 to the base 15. In addition,
The lock pieces 16, 16 paired with the positioning projections 15 a, 15 b of the base 15 are advanced to the lock position A before the other lock pieces 16, 16, and the leg 13 a of the casing 13 is moved.
Is preferably in a predetermined position.

Although not shown, the upper slip casting mold 12 is detachably fixed to the base with a fixing structure similar to that of the lower slip casting mold 11. Furthermore, even if the slurry casting mold 11 is divided in the left-right direction,
Of course, the structure of the present invention can be applied.

[0014]

As described in detail above, the structure of the present invention has the following practical effects. The locking piece and the lock device are not directly exposed to demolding promotion water or cleaning water. Therefore, the structure of the present invention does not require frequent maintenance and inspection, and can reduce the burden on the operator. The locking piece and the locking device are not exposed outside the casing and the base. Therefore, in the structure of the present invention, the casing and the base can be reduced in size, and the workability can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional front view showing an embodiment of the present invention.

FIG. 2 is a plan view taken along the line II.

FIG. 3 is a front view showing a cross section of a conventional slurry casting type fixing structure.

[Explanation of symbols]

A: Lock position B: Standby position C: Recess D:
Area 11: Slurry cast 13: Casing 15: Base 16: Locking piece 18: Locking piece 22: Locking device

Claims (1)

(57) [Scope of request for utility model registration] 1. A slurry casting type fixing structure for fixing a casing forming a slurry casting die to a base, wherein a concave portion is provided inside a fixing surface of the casing abutting on the base, and the concave portion is provided in the casing. A locking piece facing the is provided,
A lock device is provided in a region facing the concave portion of the base, and a lock piece provided in the lock device is engaged with the locking piece from a standby position that does not hinder the detachment of the casing from the base. A slurry casting type fixing structure characterized by moving back and forth between positions.