JPS5836435Y2 - Rotating metal frame inner surface processing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an inner surface treatment device for a rotating metal frame in a centrifugal casting machine.

When the tube is pulled out after casting is completed in the centrifugal casting machine, the inner surface of the rotating metal frame is brushed for each casting can lid or every few castings, and a coating agent is applied to the inner surface of the rotating metal frame before the next casting. The inner surface treatment process involves applying .

In order to perform this inner surface treatment, conventionally, a brushing device was installed on the dolly that moved toward and away from the rotating metal frame, and the vertical position could be adjusted separately from the brushing device. An internal surface treatment device equipped with a coating agent application device was used.

However, this configuration requires a position adjustment device for each of the brushing device and the coating agent application device, making the configuration complicated, increasing the weight and size, and raising the equipment cost.

In order to solve this problem, the present invention provides an inner surface treatment device in which a lifting platform is provided on a cart, and a coating agent spray nozzle and a rotating brush are arranged at the tip of a support arm extending from the lifting platform. However, this simplifies the configuration by simply providing the lifting platform and its lifting device on the truck.

One embodiment will be described below based on the drawings.

In FIG. 1, 1 is a rotating metal frame rotatably supported by a pair of drive rollers 2 and idle rollers 3;
An inner surface treatment device 4 is disposed on the rotary metal frame 1- side so as to be movable toward and away from the metal frame in the axial direction of the metal frame.

As shown in FIGS. 2 and 3, the inner surface treatment device 4 is moved up and down on a back-and-forth movable carriage 6 that moves on a guide rail 5-H installed on one side of the rotary metal frame 1 in the axial direction. Place the stand 7,
A support arm 8 extends toward the rotary metal frame 1 from one end 7a of the lifting platform 7 on the rotary metal frame 1 side, and a coating agent spraying device 9 is disposed at the tip 8a of the support arm 8. A rotary brush 10 for brushing is disposed at a lower position on the side of the longitudinally movable carriage 6.

In the illustrated embodiment, a transverse carriage is provided which is movable along a transverse rail 11 which is laid on the longitudinally movable carriage 6 and is perpendicular to the guide rail 5, and lifting devices 13a and 13b are mounted on the transverse carriage 12. The lifting platform 7 is disposed therebetween.

This transverse carriage 12 is lowered from the longitudinally movable carriage 6 to the standby position when the longitudinally movable carriage 6 is at the backward limit position away from the rotary metal frame 1, and is replaced by another transverse carriage ( (not shown) is mounted on the longitudinally movable carriage 6, so that the single longitudinally movable carriage 6 can perform pouring and inner surface treatment.

Reference numeral 14 denotes a positioning device for a traversing truck interposed between the longitudinally movable truck 6 and the traversing truck 12, which includes a locking member 15 provided with an engaging recess provided on the side of the traversing truck 12, and a locking member 15 provided with an engaging recess provided on the side of the traversing truck 12; An engagement arm 16 on the side of the longitudinal movable carriage 6 that removably engages with the
It is because of this.

Reference numeral 17 denotes a fluid pressure cylinder device for driving the longitudinally movable carriage 6, and the tip of its piston rod is connected to a bracket 19 at the bottom of the longitudinally movable carriage 6 via a link 18.

Reference numeral 20 denotes a cylinder device for driving the lifting device 13a, and the pantograph 21 is deformed by the expansion and contraction operation of the cylinder device 20, and the lifting platform 7 is moved up and down.

As shown in FIG. 4, the injection device 9 has a plurality of nozzles 22 arranged in a straight line diagonally downward toward the tip side, that is, toward the rotary mold 1 side, and each of these injection nozzles 2
A coating agent supply pipe (not shown) communicating with the support arm 8
It is piped inside.

Further, the rotary brush 10 is disposed directly below the tip member 23 of the support arm 8, and its support shaft 24 is attached to the tip member 23 of the support arm 8.
It is fixedly attached to one end of a rotating shaft 26 that is rotatably supported by a bearing section 25 attached to the lower surface of a portion adjacent to the section 3.

27 is a cap nut for fixing the rotating brush 10 to the support shaft 24, 28 is a bearing of the rotating shaft 26 in the bearing portion 25, and two are seal portions.

30 is a drive motor for the rotating brush 10 disposed at one end 7a of the lifting platform 7, and its output shaft is connected to a shaft coupling 31. A connecting shaft 32 supported by a bearing 33 on the lower surface of the support arm 8 is connected to the rotating shaft 26 via a shaft coupling 34 .

35 is a protection tube for the connecting shaft 32. In the above configuration, when the casting is completed in the rotating metal frame 1 and the drawing of the tube is finished,
With the height of the lifting platform 7 set so that the rotating brush 10 is appropriately pressed against the inner surface of the rotating metal frame 1, the drive motor 30 is driven to move the back-and-forth movable carriage 6 forward.

Then, the inner surface of the rotary metal frame 1 is sequentially brushed from one end to the other end.

When the brushing is completed, the elevating table 7 is raised so that the distance between the injection nozzle 22 and the inner surface of the rotating metal frame 1 is the optimum distance for spraying the coating agent, and in this state, the coating agent is sprayed from the injection nozzle 22. The back and forth movable truck 6 is moved backward while spraying.

Then, the mold coating agent is sequentially applied to the inner surface of the rotary metal frame 1 from the other end toward the one end, completing the inner surface treatment.

After that, the transverse carriage 12 gets off from the top of the front-back movable carriage 6 and waits, and the transverse carriage equipped with the pouring device transfers thereon in its place. After the front driving carriage 6 moves forward, it pours into the rotary metal frame 1 when moving backward. The tube is then centrifugally cast using hot water, and the above operations are repeated.

According to the rotary metal frame inner surface processing device of the present invention, as is clear from the above explanation, a coating agent spray nozzle is disposed at the tip of the support arm extending from the lifting platform on the trolley, and Since the rotating brush is placed in the lower position on the side, there is no need to install a height adjustment device for each of the coating agent injection device and the brushing device as in the past, and the necessary inner surface treatment can be done with a simple configuration. can be done, and equipment costs are low.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall plan view;
2 and 3 are front views, with FIG. 2 showing the front part and FIG. 3 showing the rear part. FIG. 4 shows the details of the tip, in which a is a plan view and b is a partially sectional front view. DESCRIPTION OF SYMBOLS 1... Rotating metal frame, 4... Inner surface treatment device, 5... Guide rail, 6... Back-and-forth movable trolley (truck), 7... ... Elevating table, 8 ... Support arm, 9 ... Coating agent injection device, 10 ...
・Rotating brushes, 13 a, 13 b... Lifting device, 20... Cylinder device, 21...
・Pantograph, 22...Injection nozzle, 30・
...Drive motor.

Claims (1)

[Scope of utility model registration request] A cart that can move toward and away from the rotating metal frame in the axial direction of the metal frame is provided on the − side of the rotating metal frame, a lifting platform that can be raised and lowered is provided on the cart, and a support arm that extends toward the rotating metal frame is provided on the lifting platform, A rotary metal frame inner surface treatment device characterized in that a coating agent spray nozzle is disposed at the tip of the support arm, and a rotating brush is disposed at a position closer to the truck and lower than the spray nozzle.