KR20190047289A - The Rotary device for sand casting casting flask using furan resin hardener - Google Patents

Abstract

The present invention relates to a forward/reverse rotation device which safely and precisely separates a sand mold and a mold without internal shaking by hardening roll mixing sand made of a furan resin hardener and sand and applies to an automation line to increase production efficiency of standardized casts of an equal form in large quantities. The forward/reverse rotation device comprises: a roller unit (920, 921) on a front and a rear side having a plate (P) installed on the ground; a rotating unit (190, 190′) arranged on both sides and rotated by engaging with the roller unit (920, 921); a rotary body (1) having a work space (S) rotated by a motor (910); and a lifting/lowering guide unit (4), an upper mold support plate (450), an upper mold moving unit (453), an upper mold clamping unit (2), a lower mold moving unit (353), and a lower mold clamping unit (5) arranged on both sides in the work space (S). The forward/reverse rotation device is automated to firmly harden roll mixing sand in which a furan resin hardener and sand are mixed in a mold when hardening the roll mixing sand for a prescribed period of time when the roll mixing sand is filled in a flask and then moved. After moving the flask, the flask including a sand mold and the mold are safely and quickly separated without external impact or damage to be separated and discharged in accordance with a work process.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a sand casting flask rotated by a furan resin hardener,

The present invention relates to a flask rotating device for sand casting using a flange resin curing agent, and more particularly, to an automatic flask vertical rotating device for sand casting using a flange resin curing agent, The flask can be partitioned and then mixed with the furan resin curing agent and sand to be filled and cured, and then the hardened sand mold and the mold filled in the flask can be safely and precisely maintained without any warping of the combined form without internal shaking. It is a principal object of the present invention to provide a flask vertical rotation device capable of discharging a flask containing a mold for re-use and a hardened sand mold for casting.

In general, casting is one of the oldest processes in which molten metal is cast by casting to solidify it, and it is also possible to make complex shapes including wide tolerances through casting, Is typically machined in a secondary operation.

In addition, mold casting using Furan resin hardening material was developed for casting in the United States in 1958, and since about 1980, high hot strength, excellent collapsibility, As a merit that can be used, it can be rapidly used sand mold (organic self - hardening cementing method) by two - liquid oil hardening method (organic self - hardening curing method) composed of resin and acid catalyst which are most used in this field Mold can be produced.

In the sand mold using the fly resin hardening material, the hardening of the resin hardening material and the dry sand (kneading yarn) starts from 6 minutes after kneading, and the viscosity of the resin forming the film on the molding sand is increased. This makes it possible to separate the sand mold from the mold after 15-20 minutes of pot life, ensuring the fluidity. As the hardening time becomes faster, the hardening agent of furan resin in the center of the sand mold and the sand So that the mold may be separated from the mold or the sand mold may be deformed at the time of normal and reverse rotation.

Accordingly, various types of prior arts for separating a sand mold including a kneaded yarn using such a fly resin hardening material and sand have been known.

For example, in Korean Patent Registration No. 10-1718947 (published on Oct. 10, 2016), "a casting flask which is moved inside is provided with a wheel portion rotatably provided, a wheel portion provided inside the wheel portion, Wherein the casting flask fixed to the wheel portion is rotated together with the stopper portion as the wheel portion is rotated by the driving portion so that the dumping operation of the casting flask is performed Dumping of the casting flask

Device. &Quot;

Japanese Patent Application Laid-Open No. 10-1746642 (published on Nov. 11, 2016) discloses " a body portion having a housing portion with one opening opened to accommodate a plurality of molds, A pressing unit that connects one surface of the inside of the main body with one surface of the plate unit and provides a pressing force to the plate unit;

A sliding portion for guiding the movement of the plate portion,

A casting flask provided at a lower portion of the main body and including a mold car to allow movement of the main body; And a wheel portion rotatably provided in the body portion moved by the mold car,

A stopper portion provided on the inner side of the wheel portion for holding the casting flask,

And a damping member comprising a driving part for rotating the wheel part,

The upper and lower flasks 1 and 2 each consisting of a pair of upper and lower flasks 1 and 2 are individually clamped, and then the flask rotating part 200 is rotated, A flask supply part 100 for supplying the flask to the lower part of the lower flask 2 by rotating the lower flask 2 at 180 ° in one rotation among the flask moved in the flask supply part 100, A first flask rotating part 200 for transferring the casting yarn to the casting mold part 400 by removing the casting yarn from the first casting mold part 400 and supplying the casting yarn into the upper and lower flasks conveyed to the casting mold part 400, A pair of left and right molding sand supplying units 300 for uniformly filling the upper and lower flasks to the upper and lower ends of the upper and lower flasks, respectively. When the molding sand is filled in the upper and lower flasks by the molding sand supplying unit 300,

The casting sand filled in the upper and lower flasks through the rotary vibrator 460 is pressed in a downward direction from the upper side to the lower side so that the casting is strong and firmly formed to the fine portion, The lower flask is rotated at 180 ° so that the upper and lower flasks transferred from the serpentine molding part 400 can be overlapped with each other in a direction opposite to each other. A second flask rotating part 500 for transferring the upper flask to the upper and lower flask lapping parts 600; and a lower flask of the flask transferred from the second flask rotating part 500, An upper and a lower flask lapping unit 600 for transferring the overlapped portions to the discharge conveyor, and a microcomputer And all the operations of the flask supply part 100, the primary flask rotation part 200, the molding sand supply part 300, the cylindrical shaping part 400, the secondary flask rotation part 500, and the upper and lower flask coupling parts 600 And a controller 700 for receiving information through the sensor 800 and controlling the information,

The flask supply part 100 includes a base frame 110 installed in a three-dimensional structure;

A pair of rails 111 installed at an upper end of the base frame 110 and guiding the shuttle block 120 to reciprocate in a predetermined section;

One or more rollers 121 are mounted on both sides of the rail 111 so as to allow smooth movement while reciprocating for a predetermined period according to the operation of the gear motor 130 in a state of being mounted on the upper end of the rail 111, The hydraulic cylinder 140 and the power base 150 are connected to each other while the roller chain 123 is connected and fixed to the chain joint 122 while the chain joint 122 is mounted and fixed so as to be fastened and fixed to the chain 123, A shuttle block 120 integrally mounted;

A gear motor 130 connected to the roller chain 123 so that the shuttle block 120 can be reciprocated in a predetermined section;

A hydraulic cylinder 140 mounted and fixed to the shuttle block 120 to elevate the support frame 160 for a predetermined interval;

A power base 150 for preventing the support frame 160 from being stood up and down by preventing the left and right twist when the hydraulic cylinder 140 is operated;

A support frame 160 connected to the loader of the hydraulic cylinder 140 by a floating joint 141;

At least one guide bar 163 mounted to the support frame 160 and capable of stable reciprocating movement of the clamp 162 during operation of the air cylinder 161 and into which the clamp 162 is inserted;

A pair of left and right clamps 162 which are inserted and connected to the guide bar 163 to clamp the upper and the lower flaps while reciprocating for a predetermined interval according to the operation of the air cylinder 161 in a state where the shaft is inserted;

An air cylinder 161 for operating the clamp 162 in a direction facing the clamp 162;

A knuckle joint 164 fixedly connected to both ends of the air cylinder 161 and fixedly connected to the clamp 162;

A link 165 mounted on the lower side of the support frame 160 and connecting a pair of left and right clamps 162; ≪ / RTI > further comprising: < RTI ID = 0.0 > a "

The present invention also relates to a moving device 1 for moving a moving truck 12 to which a turning device 2 is coupled, a domestic registered utility model publication No. 20-0463069 (published on October 16, 2012). A turning device (2) for flipping the flask (F) coupled to the moving truck (12) to perform a dumping operation; In a dumping apparatus for a casting flask installed in the turning apparatus 2,

The turning device (2) comprises: The rotary actuating portions 4 and 4 'which are detachably coupled to both shafts 6 and 6' of the flask F are provided inside the both side arms 21 and 21 'of the bracket 3 mounted on the lifting cylinder 14, So that the flask F having the shafts 6 and 6 'coupled to the rotary actuating portions 4 and 4' can be raised and lowered,

The rotary operation part 4 or 4 'is coupled to both shafts 6 and 6' of the flask F and is capable of performing the dumping operation of the flask F by rotating the flask F Quot; dumping device of a casting flask " is known.

Although the dipping apparatus can be identified through the drawings in the above-mentioned Patent Publication Nos. 10-1718947 and 10-1746642, it is possible to arrange a plurality of outer molds in the lateral direction In order to achieve this, the outer molds are successively arranged in the transverse direction and then fixed. In the past, when the outer molds are fixed by using an adhesive to apply and fix the adhesive to the corresponding surfaces of the outer molds, The spacing between the corresponding surfaces is not constant depending on the applied thickness, and the adhesive is deformed due to the molten material melted at a high temperature filled in the fixed mold as described above, or the adhesive force is lost, In order to solve the above-mentioned problem, the main body of the casting flask, the plate portion, When the wheel rotates in one direction by the driving portion in a state including cars and the molding, by adding together the rotation body fixed to the hwilbu by the stopper, The body part is reversed to separate the molded product from the mold in the body part, and when the wheel part is rotated in the opposite direction again, the body part is re-inverted (rotated to its original position) However, in order to solve the conventional problems, there is a problem in that it is difficult to apply the structure to the flannel automation line which requires the body portion, the plate portion, the pressing portion, the sliding portion and the mold car of the casting flask, There is a problem that it is difficult to quickly and safely separate the mold within a predetermined time,

In addition, although the dumping apparatus can be identified through the drawings in the patent document 10-1751670, in the state where the lower flask is rotated at 180 ° so that the upper and lower flasks transferred from the molding unit can be stacked in the direction facing each other The second flask rotating part for transferring the second flask to the overlapping part of the upper and lower flasks has a metal hardening time like a sand mold and there is a problem that the kneading yarn, that is, the sand can not be hardened internally when the movement and rotation are applied thereto,

In addition, although the dumping apparatus can be identified through the drawings in the Registration Practical Utility Model No. 20-0463069, when the flask is moved to the dumping operation unit D as described above, it is inserted into the shaft-side engagement groove of the flask by the lifting cylinder The principle of moving the flask to the dumping region by pushing the moving carriage after lifting the flask in the coupled state is that the external impact generated when the fly resin curing agent is cured while moving inside the flask can not be minimized There is a problem in that the work environment is increased because of the structure in which the movable body is rotated and then turned and inverted.

Korean Patent Registration No. 10-1718947 (Publication date: March 23, 2017) Korean Patent Registration No. 10-1746642 (Publication date: Jul. 14, 2017) Korean Patent Registration No. 10-1751670 (Publication date: Jul. 29, 2017) · Domestic Registration Utility Model No. 20-0463069 (Published on October 16, 2012)

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DISCLOSURE OF THE INVENTION The present invention has been devised to overcome the conventional drawbacks and it is an object of the present invention to provide a sand casting flask using a flange resin hardener so as to increase the production efficiency of a large- And a forward and reverse rotation device capable of safely separating and discharging a cured sand mold and a mold filled in the flask safely and quickly,

A sand mold clamped according to the rotation of the forward and reverse rotator and a sand warp using a resin hardener not completely hardened in the center of the inside of the flask due to the force applied when the mold is safely rotated from the outside in one- And a mold release preventing unit for preventing the mold release,

Flan Automation Line Sand Molding Casting Flask Using Flour Resin Hardener to Provide Sand Casting Mold with High Quality Curing Hardening Heating Unit in Mold and Flask to Improve Curing Speed of Sand Mold And an object of the present invention is to provide a rotating device.

The present invention relates to a flask correcting and rotating device (A) for sand mold casting of a Flan automation line using a fly resin curing agent capable of quickly separating a sand mold (C) and a flask (B) from a lower mold (J) Guide plates 931 and 932 are provided on both sides of the plate P so as to rotate and support the rotary body 1, And a circular gear 934 is provided on the outer peripheral surface of the center of the contact surface 933. A rotary shaft rod 935 is provided at the center of the circular gear 934, And roller units 920 and 921 are provided on both sides of the plate P so as to be hinged to both side rotating brackets 936 fixed to the plate P; The contact surfaces 933 of the roller portions 920 and 921 are provided with drive surfaces 101 and 102 which are rotated by engaging with the contact surfaces 933. At the centers of the drive surfaces 101 and 102, At both ends of the circular chain 120, a tension adjusting screw 115 is provided. At the end of the tension adjusting screw 115, The tension fixing block 119 is provided on both sides of the roller portion 921 so that the tension adjusting screw 115 can be fastened to the tension fixing block 119 fixed to the outer circumferential surface of the rail groove 110. The rotary gear 910a of the motor 910 provided on the plate P for transmitting the rotational force of the driven gear 938 is provided with a driven gear 938 on the side of the rotary shaft rod 935, The lower frame 171 and the left and right sides of the driven gear 938 are rotatably supported by the upper and lower rotors 190 and 190 ' A worktable (S) fixedly supported by the frame (180) and having a rotating body (1); The upper and lower fixing brackets F are provided on both sides of the front and rear outer surfaces of the rotary body 1 so as to be movable upward and downward with a guide shaft rod 410 4); A pair of upper and lower guide blocks 425 are provided symmetrically on the guide rod 410 of the guide unit 4 and a pair of upper support plates 450 are provided between the guide blocks 425; The upper support plate 450 has a chain 452 rotated by the power of a motor 451. The chain 452 is rotated by rotation provided on both sides of the bottom of the upper support plate 450, A driving roller 464 which is axially rotated on a bracket 461 is driven to be driven and a moving roller 464 having guide rail jaws 463 on both sides of the center of the driving shaft rod 462 is provided in the longitudinal direction And one or more continuous gears are disposed on the bottom surface of the upper support plate 450. A drive shaft 464 is connected to the drive gear shaft 462 at one side of the drive shaft rod 462, And a chain 466 is connected to the chain 465 so that the chain 466 is rotatably connected to the chain 466. A variable shaft rod 156 of a pressurizing cylinder 155 fixed to the upper frame 151 is integrally formed on the center of the upper support plate 450, Shaped movable unit 453 provided so as to be fixedly installed on the upper side Shaped support bracket 201 is provided on both sides of the base support plate 450. The support bracket 201 is provided at the center of the support bracket 201 with a pressing cylinder 203 provided at a support block 203 having a hinge shaft 202, And the pressing rod 204a of the pressing cylinder 204 is hingedly connected to the pressing hook 207 which is hinged on the rotating shaft 206 and is hinged on the bottom surface of the fixing bracket 201, A pair of upper clamping units (2) provided on both sides so that the direction of rotation of the hooks (207) is variable; And a lower mold support plate 350 fixed to the lower frame 171 at a lower side of the work space S of the rotary body 1. A motor 351 And the lower mold moving unit 353 is rotated by a chain 352 that is rotated by receiving the power of the lower mold moving unit 353; The lower mold moving unit 353 is provided on both sides of the upper surface of the lower mold supporting plate 350 such that a driving shaft rod 362 for rotating the rotating bracket 361 is driven, and on both sides of the center of the driving shaft rod 362, And a moving roller 364 having a guide rail jaw 363 in the longitudinal direction and one or more continuously arranged on the upper surface of the lower mold supporting plate 350. The upper end of the driving shaft rod 362 A chain (366) is connected to the connecting gear (365) so that the moving roller (364) can be simultaneously driven by the moving unit (353); Shaped fixing bracket 501 is provided on both sides of the center of the lower mold support plate 350 and a pressing block 503 provided on a supporting block 503 having a hinge shaft 502 at the center of the fixing bracket 501 The pressurizing shaft 504 of the pressurizing cylinder 504 is hingedly connected to the pressurizing hook 507 which is hinged on the rotary shaft 506 and hinged to the rotary shaft 506 on the bottom side of the fixing bracket 501 And a lower mold clamping unit 5 provided on both sides so that the direction of rotation of the presser hook 507 is variable.

When the flask is filled with the kneaded yarn mixed with the furan resin curing agent and the sand and then cured for a certain period of time when the flask is moved, the inside mold It is possible to separate the flask and the mold including the sand mold safely and quickly through the rotation device after the movement by automation so that the solidification can be performed without any external impact or breakage and to separate and discharge according to the working process However,

In addition, there is an advantage of simplifying the work process and the manufacturing process by simplifying the flask and the mold including the sand mold,

In addition, a mold anti-vibration unit is provided which is capable of preventing separation or distortion between a mold and a flask when a positive and a reverse rotation process are performed in a state that a flask containing a sand mold and a mold are laminated, It is advantageous in that the mold of the flask inner mold can be prevented from twisting finely,

In addition, the hardening speed of the flange resin curing agent can be accelerated by the hot-wire coil operated by receiving the external power to the pressing block of the mold vibration preventing unit, so that a more solid sand mold can be obtained The expectation is that it is a true invention.

1 is a conceptual diagram of a state of operation of a flannel automation line equipped with a forward and reverse rotation device of the present invention
Fig. 2 is an exemplary view showing a preferred forward and reverse rotation device of the present invention
Figs. 3 to 5 are front and side sectional views of an embodiment of the present invention,
Fig. 6 is a partially enlarged view of the up-and-down moving unit and the up / down guide unit of the present invention
Fig. 7 is a view showing an operation state of the lower mold moving unit and the mold vibration preventing unit of the present invention
FIGS. 8 to 12 are diagrams showing examples of operation states of the respective processes according to the forward and reverse rotations of the rotating body of the present invention
13 is an exemplary view showing an operation state of the mold vibration preventing unit of the present invention
FIG. 14 is an exemplary view showing an arrangement state and a driving state of the roller portion viewed from the plane of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described in detail with reference to the drawings.

2 to 5, a flask B having hooking jaws B-1 on both sides thereof on the upper side of a honeycomb J having the fixed support jaws J-1 on both sides is adapted (C) and a flask (B) from the lower mold (J) when the sand mold (C) is supplied while being sandwiched between the sand mold Automatic line sand mold casting flask In a normal rotation device (A)

And guide plates 931 and 932 are provided at both sides of the plate P on both sides of the plate P so as to be able to rotate and support the rotating body 1, And a rotary shaft 935 is provided at the center of the circular gear 934. The rotary shaft 934 is provided at the center of the rotary shaft 934, And roller units 920 and 921 disposed on both sides of the rotary shaft rod 935 so as to be hinged to both side rotary brackets 936 fixed to the plate P;

As shown in FIG. 3, FIG. 4, or FIG. 14, a contact surface 933 of the roller portions 920 and 921 is provided with a driving surface 101 that rotates in engagement with the contact surface 933, And a circular chain 120 is provided on an outer peripheral surface of the negative relief rail groove 110. Both ends of the circular chain 120 are provided with a tension adjusting screw 115, The tension adjusting screw 115 is provided at the end thereof with a rotary part 190 'provided to be able to fasten the tension adjusting screw 115 to the tension fixing block 119 fixed to the outer circumferential surface of the relief rail groove 110 Respectively,

A driven gear 938 is provided on the side of the rotary shaft rod 935 of the roller portion 921. The driven gear 938 is rotatably supported by a rotary gear 910a of a motor 910 provided on a plate P Is provided so that the driven gear 938 is rotated by the chain 911,

A work space S which is fixedly supported and separated by an upper frame 151, a lower frame 171 and a left and right frame 180 is disposed between the rotary bodies 190 ;

As shown in FIG. 2, the work space S of the rotary body 1 is provided with upper and lower fixing brackets F on both sides of the front and rear outer surfaces, and a guide shaft rod 410, A lowering guide unit 4;

As shown in FIGS. 2 to 8, upper and lower movement guide blocks 425 are provided symmetrically on both sides of the guide rod 410 of the guide unit 4, and between the guide blocks 425, (450);

6, a chain 452 is provided on the upper side of the upper support plate 450 to receive rotation of the motor 451. The chain 452 supports the lower surface of the upper support plate 450 A drive shaft rod 462 which is axially rotated on the rotation bracket 461 provided on both sides is driven to be driven,

One or more continuous rollers 464 having guide rail jaws 463 are provided on both sides of the center of the drive shaft rods 462 in the longitudinal direction of the drive shaft rods 462 on the bottom surface of the upper support plate 450,

A chain 466 is connected to the connecting gear 465 so that the moving roller 464 can be simultaneously driven by the upper mold moving unit 453 and connected to the driving shaft rod 462,

And a pneumatic type moving unit 453 which is integrally fixed to the variable shaft rod 156 of the pressurizing cylinder 155 fixed to the upper frame 151 on the upper center of the upper support plate 450 ;

Shaped support bracket 201 is provided on both sides of the upper support plate 450 as shown in FIG. 2 or 8, and a support block having a hinge shaft 202 at the center of the support bracket 201, And a pressurizing shaft 204a of the pressurizing cylinder 204 is attached to the bottom surface of the fixing bracket 201 so as to be hinged on the rotary shaft 206 to be hinged, Type clamping unit (2) provided on both sides so that the rotation direction of the pressing hook (207) is variable,

A lower mold support plate 350 fixed to the lower frame 171 is provided on the lower side of the work space S of the rotary body 1 as shown in FIG. 2 or 7, A lower mold moving unit 353 is rotated by a chain 352 rotated by the power of the motor 351,

7, the lower mold movement unit 353 is provided on both sides of the upper surface of the lower mold support plate 350 such that a drive shaft rod 362, in which the rotation bracket 361 is axially rotated, is driven, and the drive shaft rod 362, And a driving roller 364 having guide rail jaws 363 at both sides of the center of the lower mold support plate 350. The driving shaft 362 is provided on the upper surface of the lower mold support plate 350, A chain 366 is connected to the connecting gear 365 so that the moving roller 364 can be simultaneously driven by the punch type moving unit 353;

Shaped fixing bracket 501 is provided on both sides of the center of the lower mold support plate 350 as shown in FIG. 7 or 8, and a supporting bracket 501 having a hinge shaft 502 at the center of the fixing bracket 501 The pressurizing shaft 504 of the pressurizing cylinder 504 is provided on the bottom side of the fixing bracket 501 with a pressing force And a lower mold clamping unit 5 hingedly connected to the hook 507 to vary the rotation direction of the pressing hook 507.

As shown in Figs. 2 to 13, in the guide unit 4 for lifting and lowering,

It is possible to prevent both sides of the mold A and the flask B, which are clamped by the upper mold clamping unit 2 and the lower mold clamping unit 5, And a mold vibration preventing unit (G) for fixing and supporting the mold vibration preventing unit (G)

13, the mold vibration preventing unit G is provided with a support block 710 fixed to the outer surface of the both side guide shaft rods 410, (720) on both sides,

And a pressing block 730 integrally connected to the front and rear side pressing cylinders 720. The central outer surface of the pressing block 730 is provided with a trapezoidal dispersing plate 731, 730 may include a release preventing tab 732 having a guide guide piece 732a.

Inside the center of the pressing block 730, a heat coil 735 is preferably provided which receives external power and generates heat at a high temperature.

As described above, the flask forward / reverse rotation device (A) for sand mold casting of the Flan automatic line using the Furan resin curing agent shown in Figs. 2 to 13,

As shown in FIG. 1, a mold is moved to an upper portion of a lower mold J to be sequentially casted along a moving table,

A flask (B) is stacked on the lower mold (J) to be densely packed by a vibration table so that a flange resin curing agent and sand can be injected into the inside of the partition to form a mold,

The lower mold J having the flange resin curing agent and the sand-loaded flask stacked thereon is moved slowly to the forward and reverse rotary device A with the transfer table being moved by the transfer table for about 15 to 20 minutes,

As shown in FIGS. 2 to 5, the lower mold J to be moved to the forward and reverse rotary device A is provided with a fixed support jaw J-1 on both sides thereof, and the engagement jaws B- The sand mold C and the flask B can be quickly and securely supplied to the lower mold J when the sand mold C is supplied while curing the sand mold C after sandwiched between the flange resin curing agent and the sand, In order to be able to separate from each other,

Shaped plate P which is firmly installed on the ground as shown in FIG. 3 is installed on the both sides of the plate P and is firmly supported and disengaged when the rotating body 1 having a large specific gravity is rotated on both sides of the plate P The roller units 920 and 921 are provided with guide rollers 920 and 921 on both sides in a state where the roller units 920 and 921 are provided on the front and rear sides of the rotary shaft rod 935 of the both side rotary brackets 936, 932 and 931 and 932 and 933 and 933 and 933 and 933 and 933 and 933 and 933 and 933 when the rotary body 1 is wholly engaged and rotated. Is engaged with the driving surfaces 101 and 102 to be smoothly rotated,

3 or 10 to 12, a circular gear 934 is disposed at the center of the contact surface 933 to engage with the engaging rail groove 934 formed at the center of the driving surface 101 (102) of the rotating body 1, Is engaged with the circular chain (120) provided on the rotary shaft (110) and engaged with the circular gear (934) to be precisely slidably forward and reverse,

As shown in FIG. 3, a circular chain 120 is detachably attached to the outer circumferential surface of the relief rail groove 110,

The opposite ends of the circular chain 120 are fixed to a tension fixing block 119 fixed to the uneven rail grooves 110 of the rotating body 1 with tension adjusting screws 115, (190) and (190 ') to facilitate tension adjustment and repair,

In order to perform the forward and reverse rotation of the rotary body 1, as shown in FIG. 2 or 3, the rotary body 1 may be driven by external power to one side of the roller portions 920 and 921 A rotary gear 910a of a motor 910 provided on one side of the plate P by a driven gear 938 is engaged with a chain 911 on the side of the rotary shaft rod 935 of the roller portion 921, The driven gear 938 is driven to rotate in the forward and reverse directions,

4, the rotating body 1 is fixedly supported by the upper frame 151, the lower frame 171 and the left and right frames 180 between the side rotaters 190 and 190 ' Thereby securing the work space S,

As shown in FIG. 2 or FIG. 3, the work space S of the rotating body 1 is provided with a guide unit for upward and downward movement for clamping the lower mold J and the flask B on the front and rear outer surfaces, 4)

And a fixing bracket (F) fixedly installed on the rotary body (1) up and down to both the front and rear sides of the work space (S)

Between the fixing brackets F, a circular guide shaft rod 410 is provided, and a supporter type support plate 450 is installed therebetween to be moved up and down,

As shown in FIGS. 2 to 8, the upper support plate 450 includes a upper support plate 450 between the guide blocks 425 on the upper side of the guide shaft rod 410 of the guide unit 4, To be moved,

A flask B stacked on a lower mold J is clamped on the lower surface of the upper mold support plate 450 and then the flask B containing the separated sand mold C is easily discharged to the outside 6, a chain 452 rotated by the power of the motor 451 is provided on both sides of the bottom of the upper support plate 450 at an upper side of the upper support plate 450, Operated by a pneumatic moving unit 453 which rotates a driving shaft rod 462 which is axially rotated to the rotating bracket 461,

6, movable rollers 464 having guide rail jaws 463 are provided at both sides of the center of the drive shaft rods 462 in the longitudinal direction, So that the flask B can be smoothly moved out of the work space S,

4 or 6 so that the entire moving roller 464 of the upper mold moving unit 453 installed on the upper mold supporting plate 450 can be simultaneously driven, The chain 466 is connected to the driving shaft rod 462 and is operated to rotate,

As shown in FIG. 2 or FIG. 3, an upper portion of the upper support plate 450 is integrally fixed to a variable shaft rod 156 of a pressurizing cylinder 155 fixed to the upper frame 151, The upper support plate 450 is operated to move up and down along the guide shaft rod 410 of the lowering guide unit 4,

2 and FIG. 8, a pair of guide rollers 463 are provided on both sides of the upper support plate 450 to guide the movement of the upper and lower molds J And is operable to be meshed with the upper surface,

The separated flask B is rotated 180 ° after the rotating body 1 is rotated 180 ° when the lower mold J and the flask B are separated from each other and the moving roller 464 of the upper mold moving unit 453 is driven The flask B containing the sand mold C is discharged to the outside in accordance with the direction,

When the flask B is seated on the moving roller 464 of the upper support plate 450 which is raised and lowered along the guide shaft rod 410 of the guide unit 4 of the lifting and lowering guide unit 4, (B) on both sides of the upper support plate (450) so as to be able to clamp the flap (B) in order to prevent the flap (B) Lt; / RTI >

As shown in FIG. 6, the upper clamping unit 2 is provided with a " C " -shaped fixing bracket 201 on both sides of the upper support plate 450, and the center of the fixing bracket 201 is provided with a hinge shaft The pressing rod 204a is lifted and lowered in the longitudinal direction by the pressurizing cylinder 204 provided on the support block 203 provided with the supporting brackets 202 and 202, The rotation direction of the press hook 207 is changed so as to be engaged with both of the engagement protrusions B-1 of the flask B,

As shown in FIG. 2 or FIG. 7, in order to allow the lower mold J to be easily and easily moved by the lower mold moving unit 353 at the lower side of the work space S of the rotating body 1,

A chain 352 rotated by receiving the power of the motor 351 is attached to the lower side of the lower mold support plate 350 fixed to the lower frame 171 as shown in FIG. 2 or FIG. 7, So that the lower mold J is moved so that the drive shaft bar 362, which is pivoted about one side of the upper surface of the mold support plate 350,

In order to move the lower mold J, a connecting gear 365 is provided on one side of the driving shaft rod 362 so that the moving roller 364 can be simultaneously driven by the upper mold moving unit 353 Connected to each other by a chain 366 and rotated,

The lower mold J is moved from one side to a moving conveyor to a moving roller 364 having guide rail jaws 363 at both sides of the center of the driving shaft bar 362 driven by the upper mold moving unit 353 And is operated to be drawn in and out of the business space (S)

As shown in FIG. 7 or 8, the lower mold J is provided with a lower mold clamping unit 5 on both sides of the center of the lower mold support plate 350 so that the lower mold J can be fixedly supported during forward and reverse rotations A pressing rod 504 which is raised and lowered by a pressurizing cylinder 504 is attached to a support block 503 provided with the hinge shaft 502 fitted in the fixing bracket 501, A pressing hook 507 which is screwed on a rotary shaft 506 provided on one side of the fixing bracket 501 and is rotated by a white force is engaged with both side fixing supporting jaws J-1 of the lower mold J And,

2 to 13, when the sand mold C and the flask B are separated from the lower mold J, the lifting guide unit 4 is provided with a guide groove And to fix and support the flask (B) to the lower mold (J) at both sides in the rotation direction in order to prevent warping of the sand mold (C) due to vibration or shaking The mold vibration preventing unit G is operated so as to be able to safely rotate in the forward and reverse directions,

13, the mold vibration preventing unit G includes a side pressing cylinder 720 disposed on one side of a supporting block 710 horizontally fixed to the outer surface of the both side guide shaft rods 410, So that the lower mold (J) can be fixedly supported by the two side flasks (B) by the same force,

And is operatively connected to the front and rear side pressing cylinders 720 so as to be uniformly pressurized by the same force by a press block 730 horizontally moved left and right,

The outer surface of the center of the pressing block 730 has a trapezoidal shape of the dispersion plate 731 and operates so that the same force can be applied when applied by the side pressing cylinder 720,

On the outer surface of the inner edge of the pressing block 730, there is provided a guide guide piece 732a, and a release preventing tab 732 is provided so as to prevent a deviation which can be released to the front and rear sides, And is operable to fix and support the rear side,

Inside the center of the pressing block 730 is provided a hot wire coil 735 which receives external power and generates heat at a high temperature so that the lower mold J is brought into contact with the flask B to generate hot heat It is operated so as to accelerate the curing by transferring high temperature heat to the part which is not completely cured in the flask (B).

A: Forward rotation device B: Flask
B-1: Hanging chin C: Sand mold
F: Fixing bracket G: Mold vibration preventing unit
J: Lower mold J-1: Fixing support chin
P: Plate S: Workspace
1: rotating body 2: upper clamping unit
4: Guide unit for lifting and lowering 5: Lower mold clamping unit
101, 102: driving surface 110: engraved rail groove
115: tension adjusting screw 119: tension fixing block
120: Circular chain 151: Upper frame
171: lower frame 171: lower frame
180: Left and right frames 190, 190 '
201: Fixing bracket 202: Hinge shaft
203: support block 204: pressure cylinder
206: rotating shaft 207: pressure hook
350: lower mold support plate 351: motor
352: Chain 353: Lower mold moving unit
361: rotation bracket 362: drive shaft rod
363: guide rail jaw 364: moving roller
365: connecting gear 366: chain
410: guide shaft rod 425: guide block
450: Upper support plate 451: Motor
452: chain 461: rotating bracket
462: drive shaft rod 463: guide rail jaw
464: moving roller 453:
465: Connecting gear 466: Chain
501: Fixing bracket 502: Hinge shaft
503: support block 504: pressure cylinder
506: rotating shaft 507: pressure hook
710: Supporting block 720: Side pressure cylinder
730: Press block 731: Dispersion plate
732: Leakage prevention tab 732a: Guide guide
735: Hot wire coil 910: Motor
911: Chain 920, 921: Roller portion
931, 932: guide chin 933:
934: Circular gear 935: Rotary shaft rod
936: Rotation bracket 938: driven gear

Claims (4)

A flask B having hooking bosses B-1 on both sides thereof on the upper side of a lower mold J provided with the fixed support jaws J-1 on both sides was adapted, and then a flange resin curing agent and a sand mold (C) and a flask (B) can be separated from the lower mold (J) quickly and safely when supplied with the curing agent (C) cured. (A)

Guide plates 931 and 932 are provided on both sides of the plate P so as to rotate and support the rotary body 1, And a circular gear 934 is provided on the outer peripheral surface of the center of the contact surface 933. A rotary shaft rod 935 is provided at the center of the circular gear 934, And roller units 920 and 921 are provided on both sides of the plate P so as to be hinged to both side rotating brackets 936 fixed to the plate P;

The contact surfaces 933 of the roller portions 920 and 921 are provided with drive surfaces 101 and 102 which are rotated by engaging with the contact surfaces 933. At the centers of the drive surfaces 101 and 102, At both ends of the circular chain 120, a tension adjusting screw 115 is provided. At the end of the tension adjusting screw 115, 190 and 190 'provided on both sides to fasten the tension adjusting screw 115 to the tension fixing block 119 fixed to the outer circumferential surface of the rail groove 110,
A driven gear 938 is provided on one side of the rotary shaft rod 935 of the roller portion 921. The driven gear 938 is rotatably coupled to the rotary shaft 935 of the motor 910 provided on the plate P, (910a) is provided so that the driven gear (938) is rotated by the chain (911)
A work space S which is fixedly supported and separated by an upper frame 151, a lower frame 171 and a left and right frame 180 is disposed between the rotary bodies 190 ;

The upper and lower fixing brackets F are provided on both sides of the front and rear outer surfaces of the rotary body 1 so as to be movable upward and downward with a guide shaft rod 410 4);

A pair of upper and lower guide blocks 425 are provided symmetrically on the guide rod 410 of the guide unit 4 and a pair of upper support plates 450 are provided between the guide blocks 425;

The upper support plate 450 has a chain 452 rotated by the power of a motor 451. The chain 452 is rotated by rotation provided on both sides of the bottom of the upper support plate 450, A drive shaft rod 462 which is axially rotated on the bracket 461 is driven,
One or more continuous rollers 464 having guide rail jaws 463 are provided on both sides of the center of the drive shaft rods 462 in the longitudinal direction of the drive shaft rods 462 on the bottom surface of the upper support plate 450,
A chain 466 is connected to the connecting gear 465 so that the moving roller 464 can be simultaneously driven by the upper mold moving unit 453 and connected to the driving shaft rod 462,
And a pneumatic type moving unit 453 which is integrally fixed to the variable shaft rod 156 of the pressurizing cylinder 155 fixed to the upper frame 151 on the upper center of the upper support plate 450 ;

The supporting bracket 201 is provided at both sides of the upper support plate 450 and has a pressing bracket 201 mounted on a support block 203 having a hinge shaft 202 at the center of the fixing bracket 201, And the pressing rod 204a of the pressing cylinder 204 is hingedly connected to the pressing hook 207 which is hinged on the rotating shaft 206 and is hinged on the bottom surface of the fixing bracket 201, A pair of upper clamping units (2) provided on both sides so that the direction of rotation of the hooks (207) is variable;

And a lower mold support plate 350 fixed to the lower frame 171 at a lower side of the work space S of the rotary body 1. A motor 351 And the lower mold moving unit 353 is rotated by a chain 352 that is rotated by receiving the power of the lower mold moving unit 353;

The lower mold moving unit 353 is provided on both sides of the upper surface of the lower mold supporting plate 350 such that a driving shaft rod 362 for rotating the rotating bracket 361 is driven, and on both sides of the center of the driving shaft rod 362, And a moving roller 364 having a guide rail jaw 363 in the longitudinal direction and one or more continuously arranged on the upper surface of the lower mold supporting plate 350. The upper end of the driving shaft rod 362 A chain (366) is connected to the connecting gear (365) so that the moving roller (364) can be simultaneously driven by the moving unit (353);

Shaped fixing bracket 501 is provided on both sides of the center of the lower mold support plate 350 and a pressing block 503 provided on a supporting block 503 having a hinge shaft 502 at the center of the fixing bracket 501 The pressurizing shaft 504 of the pressurizing cylinder 504 is hingedly connected to the pressurizing hook 507 which is hinged on the rotary shaft 506 and hinged to the rotary shaft 506 on the bottom side of the fixing bracket 501 And a lower mold clamping unit (5) provided on both sides of the lower mold clamping unit (5) so that the rotational direction of the pressing hook (507) is variable. The method according to claim 1,
To the up / down guide unit 4,
It is possible to prevent both sides of the mold A and the flask B, which are clamped by the upper mold clamping unit 2 and the lower mold clamping unit 5, And a mold anti-vibration unit (G) for fixing and supporting the metal mold anti-vibration unit (F). 3. The method of claim 2,
The mold vibration preventing unit (G)
And a support block 710 fixed to the outer surface of the both-side guide shaft rod 410,
A side pressing cylinder 720 is provided on both sides of the fixed support block 710 on both sides,
And a pressing block 730 integrally connected to the front and rear side pressing cylinders 720,
The central outer surface of the pressing block 730 has a trapezoidal shape of a dispersing plate 731,
The pressing block 730 has a guide protrusion 732a formed on the inner edge of the pressing block 730. The pressing block 730 is provided with a guide pin 732a. The method of claim 3,
Inside the center of the pressing block 730,
And a hot-wire coil (735) which generates heat at a high temperature by receiving external power. The flame-forming rotary kiln

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