CN221133949U - Novel high-precision sand core mould - Google Patents

Abstract

The utility model relates to the technical field of sand core molds and discloses a novel high-precision sand core mold, which comprises a bottom plate, wherein an upright post is fixedly connected to the upper surface of the bottom plate, a pressing mechanism is fixedly connected to the upper surface of the upright post, a lower mold is fixedly arranged on the upper surface of the upright post, a lower mold cavity is formed in the upper surface of the lower mold, and an upper mold is arranged on the upper surface of the lower mold in a laminating manner. According to the utility model, the pressing block on the pressing mechanism continuously hammers the lower die when rotating through the cooperation of the pressing mechanism, the hammering mechanism, the cylinder, the annular air bag, the connecting pipe and the rubber separating sheet, and the sand core formed in the lower die cavity is loosened from the lower die cavity in a hammering manner, so that when a user takes out the formed sand core from the lower die cavity, the surface of the sand core is not damaged when the sand core is taken out due to the fact that the sand core is clamped in the lower die cavity, and the sand core manufactured by the sand core die has higher precision.

Description

Novel high-precision sand core mould

Technical Field

The utility model relates to the technical field of sand core moulds, in particular to a novel high-precision sand core mould.

Background

The sand core is a material used for manufacturing the core in casting production and consists of casting sand, molding sand binder and the like. Currently, most of sand core molds in the market are composed of a male film, a female film, a mold cavity, a sand pressing plate, a sand injection port, a hydraulic telescopic rod and other parts, for example, a double-sided sand pouring sand core mold disclosed in Chinese patent publication No. CN217432958U, when a sand core is manufactured, the sand pressing plate is used for pressing sand in the mold cavity through the hydraulic telescopic rod, and the sand is pressed and molded, but because the sand is pressed, the sand can be closely contacted with the mold cavity, and when the molded sand core is taken out from the mold cavity, the surface of the sand core is often damaged when the sand core is taken out due to the tight sand core clamp, and the precision of the sand core is reduced.

Disclosure of utility model

The utility model aims to solve the defects existing in the prior art, such as: at present, when manufacturing the sand core, the sand pressing plate is used for pressing the sand in the die cavity through the hydraulic telescopic rod, and the sand is pressed and molded, but because the sand is pressed and then the sand can be closely contacted with the die cavity, when the molded sand core is taken away from the die cavity, the surface of the sand core is often damaged when the sand core is taken out due to the tight clamping of the sand core, and the precision of the sand core is reduced, so that the novel high-precision sand core mold is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a novel high accuracy sand core mould, includes the bottom plate, the last fixed surface of bottom plate is connected with the stand, the last fixed surface of stand is connected with presses the mechanism, the last fixed surface of stand has the bed die, the lower die cavity has been seted up to the upper surface of bed die, the upper surface laminating of bed die is provided with the mould, the fixed surface of bed die is connected with hammering mechanism, the bottom fixedly connected with drum of bed die, the inner wall bonding of drum has annular gasbag, the bottom of annular gasbag and the bottom of hammering mechanism all are fixed to communicate and are had the connecting pipe, annular gasbag's inner wall and the surface contact of pressing the mechanism, annular gasbag's inner wall bonding has the rubber separation piece.

Preferably, the pressing mechanism comprises a motor support, the bottom of the motor support is fixedly connected with the upper surface of the bottom plate, the inner wall of the motor support is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with a disc, the back of the disc is fixedly connected with a pressing block, and the surface of the pressing block and the surface of the disc are in contact with the inner wall of the annular air bag.

Preferably, the upper die comprises a die main body, the bottom of die main body and the upper surface contact of bed die, the die cavity has been seted up to the inside of die main body, the inner wall laminating of going up the die cavity is provided with presses the sand board, advance sand hole has been seted up to the upper surface of pressing the sand board, advance the inner wall fixedly connected with sand pipe of sand hole, the upper surface fixedly connected with first U-shaped board of die main body, the equal fixedly connected with hydraulic telescoping rod of the inner wall of first U-shaped board and the upper surface of pressing the sand board.

Preferably, the hammering mechanism comprises a transverse pipe, one side of the transverse pipe away from the lower die and the surface of the lower die are fixedly connected with a second U-shaped plate, the inner wall of the transverse pipe is provided with a hammering block in a fitting mode, the hammering block is fixedly connected with a spring on one side of the lower die away from the inner wall of the second U-shaped plate, and the bottom of the transverse pipe is fixedly communicated with the top end of the connecting pipe.

Preferably, the taper hole has been seted up to the bottom of bed die, the taper hole communicates with each other with the lower die cavity, the inner wall laminating of taper hole is provided with the toper piece, the bottom fixedly connected with cylinder of toper piece, the laminating of cylindrical surface is provided with the standpipe, the bottom and the last fixed surface intercommunication of annular gasbag of standpipe, the fixed surface of cylinder is connected with the spacing ring.

Preferably, the inner wall laminating of advancing the sand pipe is provided with the shutoff piece, the upper surface fixedly connected with screw cap of shutoff piece, the inner wall of screw cap and the surface threaded connection of advancing the sand pipe.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the inner space of the annular air bag is divided into four parts by the four rubber separating sheets, the annular air bag of each part is communicated with one hammering mechanism, when the disc in the pressing mechanism rotates, different positions of the annular air bag can be pressed by the pressing block, and when the annular air bag is pressed by the pressing block, the hammering block on the hammering mechanism hammers the lower die by virtue of the air pressure, at the moment, the lower die is continuously hammered by the hammering head, so that a sand core formed in the lower die cavity and the lower die cavity are loosened, and further, when a formed sand core is taken out from the lower die cavity, the surface of the sand core is not damaged when the sand core is taken out due to the fact that the sand core is clamped in the lower die cavity, so that the sand core manufactured by the sand core die has higher precision.

(2) According to the utility model, the conical hole, the conical block, the cylinder, the vertical pipe and the limiting ring are arranged, wherein when the annular air bag is extruded by the pressing block, the conical block can apply upward thrust to the sand core in the lower die cavity through air pressure, when the sand core and the lower die cavity are loosened, the sand core can move upwards for a certain distance through the conical block, at the moment, a user can judge whether the sand core and the lower die cavity are loosened or not by observing whether the sand core moves upwards or not, and further, the user can more conveniently judge whether the sand core and the lower die cavity are loosened or not.

Drawings

FIG. 1 is a schematic illustration of the structure of the present utility model;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is an enlarged view of the utility model at B in FIG. 1;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 1 in accordance with the present utility model;

FIG. 5 is a right side view of the pressing mechanism of the present utility model;

FIG. 6 is a top view of the lower mold of the present utility model;

FIG. 7 is a top view of the upper die of the present utility model;

Fig. 8 is a schematic view of an upper die of the present utility model.

In the figure: 1. a bottom plate; 2. a column; 3. a pressing mechanism; 31. a motor bracket; 32. a driving motor; 33. a rotating shaft; 34. a disc; 35. pressing the blocks; 4. a lower die; 5. a lower die cavity; 6. an upper die; 61. a mold body; 62. an upper die cavity; 63. sand pressing plate; 64. sand inlet holes; 65. a sand inlet pipe; 66. a first U-shaped plate; 67. a hydraulic telescopic rod; 7. a hammering mechanism; 71. a transverse tube; 72. a second U-shaped plate; 73. hammering the block; 74. a spring; 8. a cylinder; 9. an annular air bag; 10. a connecting pipe; 11. rubber separator; 12. a tapered bore; 13. a conical block; 14. a cylinder; 15. a standpipe; 16. a limiting ring; 17. a block; 18. a screw cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Embodiment one:

Referring to fig. 1-8, a novel high-precision sand core mould comprises a bottom plate 1, the upper surface fixedly connected with stand 2 of bottom plate 1, the upper surface fixedly connected with pressing mechanism 3 of stand 2, the upper surface fixed with bed die 4 of stand 2, bed die cavity 5 has been seted up to the upper surface of bed die 4, the laminating of the upper surface of bed die 4 is provided with mould 6, the fixed surface of bed die 4 is connected with hammering mechanism 7, the bottom fixedly connected with drum 8 of bed die 4, the inner wall bonding of drum 8 has annular gasbag 9, the bottom of annular gasbag 9 and the bottom of hammering mechanism 7 all are fixed and are linked together there is connecting pipe 10, the inner wall of annular gasbag 9 and pressing mechanism 3's surface contact, annular gasbag 9's inner wall bonding has rubber spacer 11, divide into annular gasbag 9's inner space into four through four rubber spacer 11 to, annular gasbag 9 of each part all communicates has a hammering mechanism 7.

The pressing mechanism 3 comprises a motor support 31, the bottom of the motor support 31 is fixedly connected with the upper surface of the bottom plate 1, the inner wall of the motor support 31 is fixedly connected with a driving motor 32, the output end of the driving motor 32 is fixedly connected with a rotating shaft 33, the surface of the rotating shaft 33 is fixedly connected with a disc 34, the back of the disc 34 is fixedly connected with a pressing block 35, the surface of the pressing block 35 and the surface of the disc 34 are both in contact with the inner wall of the annular air bag 9, the pressing block 35 is driven by the driving motor 32 to rotate by taking the rotating shaft 33 as the center, and the pressing block 35 can press different positions of the annular air bag 9 through the rotating pressing block 35.

The upper die 6 comprises a die main body 61, the bottom of the die main body 61 is in contact with the upper surface of the lower die 4, an upper die cavity 62 is formed in the die main body 61, a sand pressing plate 63 is arranged on the inner wall of the upper die cavity 62 in a fitting mode, a sand inlet 64 is formed in the upper surface of the sand pressing plate 63, a sand inlet pipe 65 is fixedly connected to the inner wall of the sand inlet 64, a first U-shaped plate 66 is fixedly connected to the upper surface of the die main body 61, a hydraulic telescopic rod 67 is fixedly connected to the inner wall of the first U-shaped plate 66 and the upper surface of the sand pressing plate 63, and the sand pressing plate 63 can press sand in the upper die cavity 62 and the lower die cavity 5 through the hydraulic telescopic rod 67 and enable the sand to be pressed and molded.

The hammering mechanism 7 comprises a horizontal pipe 71, one side of the horizontal pipe 71 far away from the lower die 4 and the surface of the lower die 4 are fixedly connected with a second U-shaped plate 72, a hammering block 73 is attached to the inner wall of the horizontal pipe 71, one side of the hammering block 73 far away from the lower die 4 and the inner wall of the second U-shaped plate 72 are fixedly connected with springs 74, the bottom of the horizontal pipe 71 is fixedly communicated with the top end of the connecting pipe 10, when the annular air bag 9 is pressed by the pressing block 35, air in the annular air bag 9 enters the horizontal pipe 71, and the hammering block 73 is hammered into the lower die 4 once through air pressure, and when the annular air bag 9 is not pressed by the pressing block 35, the hammering block 73 can be separated from the lower die 4 through the pulling force of the springs 74.

Embodiment two:

referring to fig. 1-6, a tapered hole 12 is formed in the bottom of the lower die 4, the tapered hole 12 is communicated with the lower die cavity 5, a tapered block 13 is attached to the inner wall of the tapered hole 12, a cylinder 14 is fixedly connected to the bottom of the tapered block 13, a vertical pipe 15 is attached to the surface of the cylinder 14, the bottom of the vertical pipe 15 is fixedly communicated with the upper surface of the annular air bag 9, a limiting ring 16 is fixedly connected to the surface of the cylinder 14, the distance of upward movement of the tapered block 13 is limited through the limiting ring 16, when the annular air bag 9 is extruded by a pressing block 35, upward thrust can be applied to a sand core in the lower die cavity 5 by the tapered block 13 through air pressure, and when the sand core and the lower die cavity 5 are loosened, the sand core can be moved upward by a certain distance through the tapered block 13.

Embodiment III:

Referring to fig. 1 to 8, a blocking block 17 is attached to the inner wall of the sand inlet pipe 65, a screw cap 18 is fixedly connected to the upper surface of the blocking block 17, the inner wall of the screw cap 18 is in screw connection with the surface of the sand inlet pipe 65, after the screw cap 18 is screwed into the sand inlet pipe 65, the blocking block 17 is fixed into the sand inlet pipe 65 through the screw cap 18, and the sand inlet pipe 65 is sealed through the blocking block 17, and at this time, mold sand below the sand inlet pipe 65 can be normally pressed through the blocking block 17.

In the utility model, when the sand core mould is used by a user, the upper mould 6 and the bottom plate 1 are fixed on the sand core manufacturing equipment, then the upper mould 6 and the lower mould 4 are combined together through a lifting mechanism on the sand core manufacturing equipment, then the sand is injected into the lower mould cavity 5 and the upper mould cavity 62 through a sand injection mechanism on the sand core manufacturing equipment, after the sand is injected, the sand pressing plate 63 is pressed through the hydraulic telescopic rod 67, after the sand is pressed and molded, the sand pressing plate 63 returns to an initial position through the hydraulic telescopic rod 67, the upper mould 6 and the lower mould 4 are separated through the lifting mechanism on the sand core manufacturing equipment, then the driving motor 32 is started, the pressing block 35 is rotated by taking the rotating shaft 33 as the center, the lower mould 4 is hammered through the rotating pressing block 35, at the moment, the hammering position is continuously changed, the sand core molded in the lower mould cavity 5 and the lower mould cavity 5 are loosened through the hammering head, after the sand pressing plate 63 returns to the initial position, the sand core is moved upwards through the rotating shaft 33, and the conical core molded after the sand is moved upwards, and the sand core molded is moved upwards when the sand core molded is observed, and the disc 13 is moved upwards, and after the sand core molded is moved upwards, and the sand core molded.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims (6)

1. The utility model provides a novel high accuracy sand core mould, includes bottom plate (1), its characterized in that, the last fixed surface of bottom plate (1) is connected with stand (2), the last fixed surface of stand (2) is connected with presses mechanism (3), the last fixed surface of stand (2) has bed die (4), bed die (5) have been seted up to the upper surface of bed die (4), the laminating of the upper surface of bed die (4) is provided with mould (6), the fixed surface of bed die (4) is connected with hammering mechanism (7), the bottom fixedly connected with drum (8) of bed die (4), the inner wall bonding of drum (8) has annular gasbag (9), the bottom of annular gasbag (9) and the bottom of hammering mechanism (7) all are fixed to be linked together and are connected with connecting pipe (10), the inner wall of annular gasbag (9) and the surface contact of pressing mechanism (3), the inner wall of annular gasbag (9) bonds there is rubber separation piece (11).

2. The novel high-precision sand core mold according to claim 1, wherein the pressing mechanism (3) comprises a motor support (31), the bottom of the motor support (31) is fixedly connected with the upper surface of the bottom plate (1), the inner wall of the motor support (31) is fixedly connected with a driving motor (32), the output end of the driving motor (32) is fixedly connected with a rotating shaft (33), the surface of the rotating shaft (33) is fixedly connected with a disc (34), the back of the disc (34) is fixedly connected with a pressing block (35), and the surface of the pressing block (35) and the surface of the disc (34) are both in contact with the inner wall of the annular air bag (9).

3. The novel high-precision sand core die according to claim 1, wherein the upper die (6) comprises a die main body (61), the bottom of the die main body (61) is in contact with the upper surface of the lower die (4), an upper die cavity (62) is formed in the die main body (61), a sand pressing plate (63) is arranged on the inner wall of the upper die cavity (62) in a fitting mode, a sand inlet hole (64) is formed in the upper surface of the sand pressing plate (63), a sand inlet pipe (65) is fixedly connected to the inner wall of the sand inlet hole (64), a first U-shaped plate (66) is fixedly connected to the upper surface of the die main body (61), and a hydraulic telescopic rod (67) is fixedly connected to the inner wall of the first U-shaped plate (66) and the upper surface of the sand pressing plate (63).

4. The novel high-precision sand core die according to claim 1, wherein the hammering mechanism (7) comprises a transverse tube (71), one side of the transverse tube (71) away from the lower die (4) and the surface of the lower die (4) are fixedly connected with a second U-shaped plate (72), hammering blocks (73) are attached to the inner wall of the transverse tube (71), springs (74) are fixedly connected to one side of the hammering blocks (73) away from the lower die (4) and the inner wall of the second U-shaped plate (72), and the bottom of the transverse tube (71) is fixedly communicated with the top end of the connecting tube (10).

5. The novel high-precision sand core die according to claim 1, wherein a conical hole (12) is formed in the bottom of the lower die (4), the conical hole (12) is communicated with the lower die cavity (5), a conical block (13) is arranged on the inner wall of the conical hole (12) in a fitting mode, a cylinder (14) is fixedly connected to the bottom of the conical block (13), a vertical pipe (15) is arranged on the surface of the cylinder (14) in a fitting mode, the bottom of the vertical pipe (15) is fixedly communicated with the upper surface of the annular air bag (9), and a limiting ring (16) is fixedly connected to the surface of the cylinder (14).

6. A novel high-precision sand core mould according to claim 3, characterized in that a plugging block (17) is attached to the inner wall of the sand inlet pipe (65), a threaded cover (18) is fixedly connected to the upper surface of the plugging block (17), and the inner wall of the threaded cover (18) is in threaded connection with the surface of the sand inlet pipe (65).