CN2267879Y

CN2267879Y - Core shooting machine for hot-core box

Info

Publication number: CN2267879Y
Application number: CN 96233163
Authority: CN
Inventors: 成新华
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-06
Filing date: 1996-05-06
Publication date: 1997-11-19
Anticipated expiration: 2006-05-06

Abstract

The utility model belongs to the technical field of cast molding, which relates to a core shooting machine for hot-core boxes for molding particularly. The utility model is characterized in that a down pressing cylinder is installed over a crossbeam; a sand hopper is installed on the lateral upper side of the crossbeam; the sand hopper is provided with a scale which is used for measuring sand feeding; a cavity which is arranged at the backside of the crossbeam is an air holder which is used for realizing the actions of each mechanism; the inner of a cavity which is arranged in front of the crossbeam is an air inlet head of which the upper side is provided with a small hole; the air intake and the air exhaust of the air inlet head can be realized by a sand jet valve and an air exhaust valve which are arranged on the crossbeam; a sand jet cylinder is connected with a rotary cylinder; a sand jet cylinder resetting device which is arranged on a cantilever support is composed of a pressure spring pull rod and a spring; two clamping cylinders and a control valve are installed on the upper side of a base work bench.

Description

Hot box shoot core machine

The utility model belongs to the casting and molding technical field, relates in particular to a kind of hot box shoot core machine of casting usefulness, and it is the capital equipment with shell coated sand hot box process and furan resin-sand hot box process.

Existing hot box shoot core machine, the patent No. 93233935.2, name is called the casting chaplet box core shooter, its principal character is: be provided with a liftable ventilation vent needle in the core bottom, be provided with a liftable blasting unit on core top, on frame, establish the gas tank of each mechanism action of realization, a taper hole less than sealing plug is arranged in the middle of the cover on the blasting unit.The deficiency of its existence is: penetrate sand mechanism complexity, part is fragile, and Sand jet valve is by common cylinder. piston. and afterbody adds spring and air chamber etc. and forms; Penetrate sand and add sand in same axial location, blasting unit can not rotate, and adds sand mechanism for adding sand continuously, can not quantitatively add sand and guarantee the coremaking quality, need establish the ventilation vent needle and the gas tank of independently lifting.

The purpose of this utility model is to provide a kind of hot box shoot core machine, makes that it is simple in structure, control system is reliable, part is not fragile, can quantitatively add sand improves coremaking quality and production efficiency.

The purpose of this utility model realizes as follows: hot box shoot core machine is by base worktable, penetrate head, the sand shot tube, the cantilever bearing, the column bearing, the air inlet head, crossbeam, following air cylinder, sand hopper, Sand jet valve, the sand hopper flashboard, column, rotary cylinder, air bleeding valve, clamp cylinder, control valve, the air inlet cover, the cylinder piston knock-off joint, the stage clip pull bar, spring, gas dome is formed, column is installed above the base worktable, the cantilever bearing is installed respectively on column, column bearing and crossbeam, lift cylinder is installed directly over crossbeam, above the crossbeam side, sand hopper is installed, be the sand hopper flashboard below the sand hopper, sand hopper has measures the scale that adds sand; The crossbeam rear cavity is for realizing the gas dome of each mechanism action, be the air inlet head in the crossbeam front cavity, air inlet head upper end links by cylinder piston knock-off joint and following air cylinder, advance to have in a fit of anger aperture, between air inlet head and the crossbeam front cavity air inlet cover is arranged, air inlet cover cavity communicates with the gas dome and the external world respectively by Sand jet valve on the crossbeam and air bleeding valve, and an air inlet lower end is the sand shot tube, penetrate head and be fixed on sand shot tube lower end, penetrate head and go up 1-4 nozzle of installation; The sand shot tube links to each other with rotary cylinder, is installed on cantilever bearing and the column bearing sand shot tube resetting means of being made up of stage clip pull bar and spring on the cantilever bearing respectively; Control valve and two clamping cylinders are installed above the base worktable, are established a solid plate in core, the moving platen on both sides clamps cylinders by two respectively and drives, and can once do 1-4 fuse simultaneously.

Effect of the present utility model: penetrate sand and add the sand station separately, blasting unit can rotate again in lifting, has simplified and has penetrated sand mechanism; Sand hopper has measures the scale that adds sand, can quantitatively add sand, improves the coremaking quality, can do 1-4 fuse simultaneously, has improved production efficiency.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the A-A profile of Fig. 1

Fig. 3 is the B-B profile of Fig. 1

Among the figure, part 1 be base worktable, part 2 be penetrate head, part 3 be sand shot tube, part 4 be cantilever bearing, part 5 be air inlet head, part 6 be crossbeam, part 7 be down air cylinder, part 8 be sand hopper, part 9 be Sand jet valve, part 10 be sand hopper flashboard, part 11 be column, part 12 be rotary cylinder, part 13 be air bleeding valve, part 14 be clamp cylinder, part 15 is that control valve, part 16 are that air inlet cover, part 17 are that cylinder piston knock-off joint, part 18 are that stage clip pull bar, part 19 are that spring, part 20 are that gas dome, part 21 are column bearings

Hot box shoot core machine is by base worktable 1, penetrate 2, blasting unit 3, cantilever bearing 4, column bearing 21, air inlet 5, crossbeam 6, following air cylinder 7, sand hopper 8, Sand jet valve 9, sand hopper flashboard 10, column 11, rotary cylinder 12, air bleeding valve 13, clamp cylinder 14, control valve 15, air inlet cover 16, cylinder piston knock-off joint 17, stage clip pull bar 18, spring 19 and gas dome 20 are formed, column 11 is installed above the base worktable 1, cantilever bearing 4 is installed respectively on column 11, column bearing 21 and crossbeam 6, air cylinder 7 under installing directly over the crossbeam 6, sand hopper 8 is installed above crossbeam 6 sides, be husky bucket flashboard 10 below the husky bucket 8, sand hopper 8 has measures the scale that adds sand; Crossbeam 6 rear cavity are for realizing the gas dome 20 of each mechanism action, be air inlet 5 in the crossbeam front cavity, air inlet 5 upper end link by cylinder piston knock-off joint 17 and following air cylinder 7, in the air inlet 5 aperture is arranged, air inlet cover 16 is arranged between the front cavity of air inlet 5 and crossbeam 6, the cavity of air inlet cover 16 communicates with the gas dome 20 and the external world respectively by Sand jet valve on the crossbeam 9 and air bleeding valve 13, air inlet 5 lower end are sand shot tubes 3, penetrate 5 and be fixed on blasting unit 3 lower ends, penetrate on 2 1-4 nozzle is installed; Sand shot tube 5 links to each other with rotary cylinder 12, is installed on cantilever bearing 4 and the column bearing 21 the sand shot tube resetting means of being made up of stage clip pull bar 18 and spring 19 on cantilever bearing 4 respectively; Control valve 15 and two clamping cylinders 14 are installed above the base worktable 1, are established a solid plate in core, the moving platen on both sides clamps cylinders 14 by two respectively and drives, and can once do 1-4 fuse simultaneously.Its course of work is: (one) position adds sand: rotary cylinder 12 is moved blasting unit 3 to and is added the sand position below the sand hopper 8, and shell coated sand adds in the sand hopper 8, open sand hopper flashboard 10, shell coated sand enters in the blasting unit 3, after the sand of blasting unit 3 installs to ormal weight, closes sand hopper flashboard 10; (0) position, the location, rotary cylinder 12 is moved blasting unit 3 to and is penetrated the sand position below the air inlet 5, penetrates a nozzle of 2 and aims at core box and penetrate Sha Kou; (2) position clamps, and two clamp cylinder 14 core box is clamped; (3) position compresses, 7 actions of following air cylinder, with air inlet 5, sand shot tube 3, penetrate 5 and core box be pressed on the workbench; (4) position, penetrate sand, open Sand jet valve 9, the compressed air of crossbeam 6 rear portion gas domes 20 enters in the cavity of the anterior air inlet cover 16 of crossbeam immediately in a large number, and enter air inlet 5 by the aperture in the air inlet 5, air inlet 5 enters blasting unit 3 with compressed air, and sand is injected in the core box by penetrating 2, finishes and penetrates sand; Move control valve 15 to (three) position, air bleeding valve 13 is discharged the residual air in blasting unit 3 and the air inlet cover 16 fast; Control valve 15 is moved back to (two) position, and following air cylinder 7 reversing cylinder pistons rise, and sand shot tube 3 rises under spring 19 power effects and resets, after core box is heated to certain hour, move control valve and make two to clamp cylinders 14 core box is unclamped, take out core, finished a coremaking operation cycle.

If use furan resin-sand coremaking, at 8 times installation vibrators of sand hopper, mobile relatively poor furan resin-sand is added in the blasting unit 3 smoothly, the coremaking process is with above-mentioned coremaking process.

Claims

A kind of hot box shoot core machine, by base worktable (1), penetrate head (2), sand shot tube (3), cantilever bearing (4), column bearing (21), air inlet head (5), crossbeam (6), following air cylinder (7), sand hopper (8), Sand jet valve (9), sand hopper flashboard (10), column (11), rotary cylinder (12), air bleeding valve (13), clamp cylinder (14), control valve (15), air inlet cover (16), cylinder piston knock-off joint (17), stage clip pull bar 18), spring 19) and gas dome (20) form, it is characterized in that installing above the base worktable (1) column (11), cantilever bearing (4) is installed respectively on column (11), column bearing (21) and crossbeam (6), air cylinder (7) under installing directly over the crossbeam (6), in crossbeam (6) side top sand hopper (8) is installed, be sand hopper flashboard (10) below the sand hopper (8), sand hopper (8) has measures the scale that adds sand; Crossbeam (6) rear cavity is for realizing the gas dome (20) of each mechanism action, be air inlet head (5) in the crossbeam front cavity, air inlet head (5) upper end links by cylinder piston knock-off joint (17) and following air cylinder (7), the air inlet head has aperture on (5), air inlet cover (16) is arranged between the front cavity of air inlet head (5) and crossbeam (6), air inlet cover (16) cavity communicates with the gas dome (20) and the external world respectively by Sand jet valve on the crossbeam (9) and air bleeding valve (13), air inlet head (5) lower end is sand shot tube (3), penetrate head (2) and be fixed on sand shot tube (3) lower end, penetrate head (2) and go up 1-4 nozzle of installation; Sand shot tube (5) links to each other with rotary cylinder (12), is installed in respectively on cantilever bearing (4) and the column bearing (21), the sand shot tube resetting means that has stage clip pull bar (18) and spring (19) to form on cantilever bearing (4); Control valve (15) and two clamping cylinders (14) are installed above the base worktable (1), are established a solid plate in core, the moving platen on both sides clamps cylinders (14) by two respectively and drives.