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CN-224209107-U - Auxiliary device for demolding thin-wall castings

CN224209107UCN 224209107 UCN224209107 UCN 224209107UCN-224209107-U

Abstract

The utility model discloses a thin-wall casting demolding auxiliary device, which comprises an air chamber arranged in an inner die, wherein one side of the air chamber is provided with an air blowing hole communicated with a die cavity, an air passage is arranged in the air chamber, the air passage is connected with an air pump fixedly arranged outside the inner die, a guide rod is fixedly arranged in the air chamber, a pressing plate is slidably arranged on the guide rod, an air plug is fixedly arranged on the pressing plate, the air plug can be inserted into the air blowing hole to seal the air blowing hole, the die is separated after the casting is molded, if the casting cannot be demolded smoothly, a motor is started to drive a movable plate to move, so that the air plug moves to open the air blowing hole, and at the moment, the air pump is started to charge air into the air chamber through the air passage and is conveyed between the casting and a die wall in the die cavity through the air blowing hole, so that the casting is loosened and demolded.

Inventors

  • HE LEWEI

Assignees

  • 舟山市定海宏盛实业有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (4)

  1. 1. The thin-wall casting demolding auxiliary device is characterized by comprising an air chamber (12) arranged in an inner mold, wherein an air blowing hole (13) is formed in one side of the air chamber (12) and is communicated with a mold cavity (11), an air passage (14) is formed in the air chamber (12), the air passage (14) is connected with an air pump (15) fixedly arranged outside the inner mold, a guide rod (16) is fixedly arranged in the air chamber (12), a pressing plate (17) is slidably arranged on the guide rod (16), an air plug (18) is fixedly arranged on the pressing plate (17), and the air plug (18) can be inserted into the air blowing hole (13) to plug the air plug.
  2. 2. The auxiliary device for demoulding thin-wall castings according to claim 1, wherein the guide rod (16) is further provided with a movable plate (19) in a sliding manner, and a pressure spring (20) is connected between the movable plate (19) and the pressing plate (17).
  3. 3. The thin-wall casting demolding auxiliary device according to claim 2, wherein a thread sleeve (21) is fixedly arranged on one side, away from the pressing plate (17), of the movable plate (19), a motor (23) is fixedly arranged on the outer side of the inner mold, and a thread shaft (22) of the motor (23) extends into the air chamber (12) through a mounting hole (24) on the side wall of the air chamber (12) and is in threaded connection with the thread sleeve (21).
  4. 4. A thin-wall casting demolding auxiliary device according to claim 3, wherein an air seal ring (25) is slidably mounted on the threaded sleeve (21), a pushing spring (26) is connected between the air seal ring (25) and the movable plate (19), and the air seal ring (25) can block an inner side opening of the mounting hole (24).

Description

Auxiliary device for demolding thin-wall castings Technical Field The utility model relates to the field of casting molds, in particular to a thin-wall casting demolding auxiliary device. Background In the casting and demolding process of the thin-wall part, the situation that the thin-wall part is clamped in the inner die possibly occurs, and the casting is possibly damaged due to the fact that the thin-wall casting is just cast and molded and the part is not taken properly. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model aims to provide the thin-wall casting demoulding auxiliary device which solves the existing pain point in the field. The technical aim of the utility model is realized by the following technical scheme: The utility model provides a thin wall foundry goods drawing of patterns auxiliary device, includes the air chamber that sets up in the centre form mould, air chamber one side is provided with gas pocket and die cavity intercommunication, be provided with the air flue in the air chamber, the air flue with fixed mounting in the outer air pump of centre form mould is connected, fixed mounting has the guide arm in the air chamber, slidable mounting has the clamp plate on the guide arm, fixed mounting has the air lock on the clamp plate, the air lock can insert with its shutoff in the gas pocket. Further stated, the guide rod is also provided with a movable plate in a sliding manner, and a pressure spring is connected between the movable plate and the pressure plate. Further, a thread sleeve is fixedly arranged on one side, away from the pressing plate, of the movable plate, a motor is fixedly arranged on the outer side of the inner die, and a thread shaft of the motor extends into the air chamber through a mounting hole in the side wall of the air chamber and is in threaded connection with the thread sleeve. Further, an air seal ring is slidably mounted on the threaded sleeve, a pushing spring is connected between the air seal ring and the movable plate, and the air seal ring can block the inner opening of the mounting hole. In summary, compared with the prior art, the utility model has the beneficial effects that in the casting process, the air plug is pressed by the pressure spring to block the air blowing hole, the inner surface of the die cavity is smooth, the casting molding is not affected, the die is separated after the casting molding, if the casting cannot be smoothly demolded, the motor is started to drive the movable plate to move, so that the air plug moves to open the air blowing hole, meanwhile, the movable plate presses the air seal ring into the mounting hole through the pushing spring to seal, at the moment, the air pump is started to charge air into the air chamber through the air channel, and the air is sent between the casting and the die wall in the die cavity through the air blowing hole, so that the casting is loosened and demolded. Drawings The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present utility model are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which: FIG. 1 is a schematic diagram of a thin-wall casting demolding-assistance device. The reference numerals comprise 10, an inner mold, 11, a mold cavity, 12, an air chamber, 13, a blowing hole, 14, an air passage, 15, an air pump, 16, a guide rod, 17, a pressing plate, 18, an air plug, 19, a movable plate, 20, a pressure spring, 21, a threaded sleeve, 22, a threaded shaft, 23, a motor, 24, a mounting hole, 25, an air seal ring, 26 and a pushing spring. Detailed Description The utility model is described in further detail below with reference to the accompanying drawings. The utility model provides a thin wall foundry goods drawing of patterns auxiliary device, includes the air chamber 12 that sets up in interior mould 10, air chamber 12 one side is provided with blow hole 13 and die cavity 11 intercommunication, be provided with air flue 14 in the air chamber 12, air flue 14 with fixed mounting in the outer air pump 15 of interior mould 10 is connected, fixed mounting has guide arm 16 in the air chamber 12, slidable mounting has clamp plate 17 on the guide arm 16, fixed mounting has air lock 18 on clamp plate 17, air lock 18 is the cone, air lock 18 can insert in blow hole 13 with its shutoff, just the air lock 18 terminal surface will be in interior mould 10 mould internal face parallel and level, slidable mounting has fly leaf 19 on the guide arm 16, fly leaf 19 with be connected with pressure spring 20 between clamp plate 17, fly leaf 19 keep away from clamp plate 17 one side fixed mounting has thread bush 21, the outside fixed mounting of interior mould 10 has motor 23, th