CN211866548U

CN211866548U - Casting sand scraping device

Info

Publication number: CN211866548U
Application number: CN202020299644.6U
Authority: CN
Inventors: 孙晓忠; 钱一
Original assignee: Changzhou Laiou Casting Co ltd
Current assignee: Changzhou Laiou Casting Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-11-06
Anticipated expiration: 2030-03-12

Abstract

The utility model discloses a scraping device is used in casting, including base, motor and sand box, base top both sides welded fastening has the stand, the fixed supporting shoe that is provided with in stand top, base top welded fastening has the plummer, the fixed backing plate that is provided with in plummer middle part, the plummer both sides have the recess, the inside fixed first spring that is provided with of recess, first spring top and sand box bottom end fixed connection, the supporting shoe bottom is provided with the rotation axis. The utility model discloses a rotatory piece adsorbs on the box surface, and the clamp plate drives the box through rotatory piece and up moves together during up-moving, and when the pulling force of clamp plate exceeded the appeal, rotatory piece breaks away from the box, and first spring resumes deformation and drives the box down striking on the backing plate, and the inside molding sand of box can be dodged by the pine and relatively symmetrical this moment, then the briquetting continues to carry out the compaction to it, and after the circulation action, can guarantee that the grit is pressed evenly and compactedly.

Description

Casting sand scraping device

Technical Field

The utility model relates to a molding machine technical field, in particular to sand scraping device is used in casting.

Background

Molding machines are used in casting plants for producing sand molds. Its main functions are: filling sand, namely filling loose molding sand into a sand box; compacting the molding sand, wherein the loose molding sand in the sand box is compacted through different methods such as jolt ramming, compaction, jolt ramming, injection pressing and the like, so that the sand mould has necessary strength in the processes of carrying, pouring and the like; and (4) stripping, namely taking out the pattern from the compacted sand mold by using different mechanisms.

However, in the actual production process, the molding sand which is just filled into the sand box is in a shape with a high middle and a low periphery, and after the molding machine compacts the sand box through hydraulic pressure, because the part with a high height which is contacted by the pressure head at first, the formed sand mould is often in a phenomenon of dense middle and soft periphery, so that the problem of uneven sand mould strength is caused, and the phenomena of sand mould collapse and the like are easily caused in the process of carrying or pouring.

Therefore, it is necessary to provide a sand-scraping device for casting to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a casting is with scraping device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sand scraping device for casting comprises a base, a motor and a sand box, wherein two sides of the top end of the base are fixedly welded with stand columns, the top ends of the stand columns are fixedly provided with supporting blocks, the top end of the base is fixedly welded with a bearing platform, the middle part of the bearing platform is fixedly provided with a base plate, two sides of the bearing platform are provided with grooves, first springs are fixedly arranged in the grooves, the top ends of the first springs are fixedly connected with the bottom end of the sand box, the bottom ends of the supporting blocks are provided with rotating shafts, the rotating shafts are rotatably suspended at the bottom ends of the supporting blocks through bearings, rotating discs are fixedly arranged in the middle parts of the rotating shafts, connecting blocks are arranged at two ends of the rotating shafts, one sides of the connecting blocks are hinged with connecting rods, the bottom ends of the connecting rods are hinged with transmission mechanisms, the bottom ends, a pressing plate is fixedly connected between the movable blocks on the two sides, a pressing block is arranged at the bottom end of the pressing plate, connecting rods are hinged to the two sides of the pressing plate, and rotating blocks are hinged to the bottom ends of the connecting rods;

the sand box comprises a box body, wherein moving plates are arranged on two sides of the box body, one end of each moving plate is fixedly connected with a second spring, one end of each second spring is fixedly connected with the side wall of the box body, and the surface of the box body is in threaded connection with an adjusting limiting rod.

Preferably, drive mechanism includes first movable rod and second movable rod, first movable rod top is articulated with the connecting rod, second movable rod bottom and movable block fixed connection, the cavity has been seted up at second movable rod top, the inside fixed third spring that is provided with of cavity, third spring top and first movable rod bottom fixed connection, first movable rod bottom has the spacing ring piece, spacing ring piece and cavity inner wall looks adaptation.

Preferably, the motor is fixedly arranged at the bottom end of the supporting block, and the motor output shaft is fixedly connected with a gear disc which is matched with the rotating disc.

Preferably, the pad is made of a rubber material.

Preferably, the pressure plate and the pressing block are integrally formed.

Preferably, telescopic sleeves are arranged inside the first spring and inside the second spring.

Preferably, balls are arranged on two sides of the movable block, and the surfaces of the balls are in rolling connection with the side walls of the sliding grooves.

Preferably, the rotating block is made of a magnetic material, and the rotating block and the box body are magnetically attracted.

Preferably, one side of the connecting rod is provided with a limiting block.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with the rotatory piece that has magnetism, when using, the briquetting moves down, carry out the compaction to the foundry sand of sand box inside, the briquetting moves down and strikes the molding sand when, the rotatory piece that is located the clamp plate both sides is under the inertia effect, can draw close toward the box lateral wall respectively, and adsorb on the box surface, the clamp plate drives the box through the rotatory piece and moves up together when moving up, when the pulling force of clamp plate surpasses the appeal, the rotatory piece breaks away from the box, first spring resumes deformation and drives the box and strike down on the backing plate, the molding sand of box inside can be dodged by the pine and relatively well-balanced this moment, then the briquetting continues to carry out the compaction to it, after the circulation action, can guarantee that the grit is pressed evenly and compact, improve the stability ability of sand mould in transport and the pouring process;

2. the utility model discloses a box both sides are provided with the movable plate and adjust the gag lever post, are pressed evenly tight real back when the inside grit of box, twist toward the box outside and move the position of adjusting the gag lever post, utilize the elasticity that the second spring resumes deformation to drive the movable plate and break away from the sandstone piece lateral wall, are convenient for take out by the molding sand piece of compaction.

Drawings

Fig. 1 is a schematic view of the overall front view section of the present invention.

Fig. 2 is a side view of the transmission mechanism of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the device comprises a base 1, a motor 2, a sand box 3, a vertical column 4, a supporting block 5, a bearing table 6, a backing plate 7, a groove 8, a first spring 9, a rotating shaft 10, a rotating disc 11, a connecting block 12, a connecting rod 13, a movable block 14, a sliding groove 15, a pressing plate 16, a pressing block 17, a connecting rod 18, a rotating block 19, a movable plate 20, a second spring 21, an adjusting limiting rod 22, a first movable rod 23, a second movable rod 24, a cavity 25 and a third spring 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a sand scraping device for casting as shown in figures 1-3, which comprises a base 1, a motor 2 and a sand box 3, wherein two sides of the top end of the base 1 are welded and fixed with a column 4, the top end of the column 4 is fixedly provided with a supporting block 5, the top end of the base 1 is welded and fixed with a bearing platform 6, the middle part of the bearing platform 6 is fixedly provided with a backing plate 7, two sides of the bearing platform 6 are provided with grooves 8, the inside of each groove 8 is fixedly provided with a first spring 9, the top end of the first spring 9 is fixedly connected with the bottom end of the sand box 3, the bottom end of the supporting block 5 is provided with a rotating shaft 10, the rotating shaft 10 is rotatably suspended and arranged at the bottom end of the supporting block 5 through a bearing, the middle part of the rotating shaft 10 is fixedly provided with a rotating disk 11, two ends of the rotating shaft 10 are provided with a, the bottom end of the transmission mechanism is fixedly connected with a movable block 14, the side wall of the upright post 4 is fixedly provided with a sliding groove 15, the movable block 14 is arranged inside the sliding groove 15, a pressing plate 16 is fixedly connected between the movable blocks 14 on two sides, the bottom end of the pressing plate 16 is provided with a pressing block 17, two sides of the pressing plate 16 are hinged with connecting rods 18, and the bottom ends of the connecting rods 18 are hinged with rotating blocks 19;

the sand box 3 comprises a box body, the box body both sides all are provided with the

movable plate

20, 20 one end fixedly connected with second spring 21 of movable plate, second spring 21 one end and box lateral wall fixed connection, box surface threaded connection has the regulation gag lever post 22, before putting the sand, twists and moves regulation gag lever post 22 and drive the movable block to work area, after the inside grit of box is compressed evenly tightly, twists the position of adjusting the gag lever post 22 toward the box outside, and second spring 21 resumes deformation and drives movable plate 20 and break away from the grit lateral wall, is convenient for take out by the molding sand piece of compaction.

Further, in the above technical solution, the transmission mechanism includes a first movable rod 23 and a second movable rod 24, the top end of the first movable rod 23 is hinged to the connecting rod 13, the bottom end of the second movable rod 24 is fixedly connected to the movable block 14, a cavity 25 is formed in the top of the second movable rod 24, a third spring 26 is fixedly disposed in the cavity 25, the top end of the third spring 26 is fixedly connected to the bottom end of the first movable rod 23, a limit ring block is disposed at the bottom end of the first movable rod 23, and the limit ring block is adapted to the inner wall of the cavity 25;

further, in the above technical solution, the motor 2 is fixedly arranged at the bottom end of the supporting block 5, an output shaft of the motor 2 is fixedly connected with a gear disc, and the gear disc is matched with the rotating disc 11;

further, in the above technical solution, the backing plate 7 is made of a rubber material, and the rubber material has good deformability and flexibility;

further, in the above technical solution, the pressing plate 16 and the pressing block 17 are integrally formed;

further, in the above technical solution, telescopic sleeves are arranged inside the first spring 9 and inside the second spring 21, and the telescopic sleeves can provide a guiding function.

Further, in the above technical solution, balls are disposed on two sides of the movable block 14, and the surfaces of the balls are in rolling connection with the side walls of the sliding groove 15, so that the sliding flexibility of the movable block 14 is improved by the principle that the rolling friction force is small.

Further, in the above technical solution, the rotating block 19 is made of a magnetic material, and the rotating block 19 and the box body are magnetically attracted.

Further, in the above technical scheme, a limiting block is arranged on one side of the connecting rod 18, and the setting of the limiting block can limit the rebound angle of the connecting rod 18.

The utility model discloses the theory of operation:

referring to the attached drawings 1-3 of the specification, when the sand box is used, the molding sand to be compacted is poured into the sand box 3, the motor 2 works to drive the rotating shaft 10 to rotate, the rotating shaft 10 rotates to drive the connecting blocks 12 at two ends to rotate, the end parts of the connecting blocks 12 drive the end parts of the connecting rods 13 to do circular motion, at the moment, the bottom ends of the connecting rods 13 drive the transmission mechanism to move up and down, the transmission mechanism drives the movable blocks 14 to move up and down, the movable blocks 14 move up and down and drive the pressing blocks 17 to move up and down through the pressing plates 16, when the pressing blocks 17 move down, the casting sand in the sand box 3 is compacted, the pressing blocks 17 move down and impact the molding sand, the rotating blocks 19 at two sides of the pressing plates 16 respectively approach to the side wall of the box body under the action of inertia and are adsorbed on the surface of the box body, when the pressing plates 16 move up, the box body is, rotatory piece 19 breaks away from the box, and first spring 9 resumes deformation and drives the box down striking on backing plate 7, and the inside molding sand of box this moment can be by the pine dodge and symmetrical relatively, then briquetting 17 continues the compaction to it, and the back is moved in the circulation, can guarantee that the grit is pressed evenly and compactedly, improves the stability ability of transport and pouring in-process sand mould.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a sand scraping device is used in casting, includes base (1), motor (2) and sand box (3), its characterized in that: the base is characterized in that upright columns (4) are fixedly welded on two sides of the top end of the base (1), supporting blocks (5) are fixedly arranged on the top ends of the upright columns (4), a bearing table (6) is fixedly welded on the top end of the base (1), a base plate (7) is fixedly arranged in the middle of the bearing table (6), grooves (8) are formed in two sides of the bearing table (6), first springs (9) are fixedly arranged in the grooves (8), the top ends of the first springs (9) are fixedly connected with the bottom end of the sand box (3), a rotating shaft (10) is arranged at the bottom end of the supporting blocks (5), the rotating shaft (10) is rotatably suspended at the bottom end of the supporting blocks (5) through a bearing, a rotating disk (11) is fixedly arranged in the middle of the rotating shaft (10), connecting blocks (12) are arranged at two ends of the rotating shaft (10), a connecting rod (13) is hinged on one side, the bottom end of the transmission mechanism is fixedly connected with a movable block (14), the side wall of the upright post (4) is fixedly provided with a sliding groove (15), the movable block (14) is arranged in the sliding groove (15), a pressing plate (16) is fixedly connected between the movable blocks (14) at two sides, the bottom end of the pressing plate (16) is provided with a pressing block (17), two sides of the pressing plate (16) are hinged with connecting rods (18), and the bottom end of each connecting rod (18) is hinged with a rotating block (19);

the sand box (3) comprises a box body, wherein moving plates (20) are arranged on two sides of the box body, one end of each moving plate (20) is fixedly connected with a second spring (21), one end of each second spring (21) is fixedly connected with the side wall of the box body, and the surface of the box body is in threaded connection with an adjusting limiting rod (22).

2. A scraping apparatus for casting as set forth in claim 1, characterized in that: drive mechanism includes first movable rod (23) and second movable rod (24), first movable rod (23) top is articulated with connecting rod (13), second movable rod (24) bottom and movable block (14) fixed connection, cavity (25) have been seted up at second movable rod (24) top, cavity (25) inside fixed third spring (26) that is provided with, third spring (26) top and first movable rod (23) bottom fixed connection, first movable rod (23) bottom has the spacing ring piece, spacing ring piece and cavity (25) inner wall looks adaptation.

3. A scraping apparatus for casting as set forth in claim 1, characterized in that: the motor (2) is fixedly arranged at the bottom end of the supporting block (5), an output shaft of the motor (2) is fixedly connected with a gear disc, and the gear disc is matched with the rotating disc (11).

4. A scraping apparatus for casting as set forth in claim 1, characterized in that: the backing plate (7) is made of rubber material.

5. A scraping apparatus for casting as set forth in claim 1, characterized in that: the pressing plate (16) and the pressing block (17) are integrally formed.

6. A scraping apparatus for casting as set forth in claim 1, characterized in that: and telescopic sleeves are arranged inside the first spring (9) and inside the second spring (21).

7. A scraping apparatus for casting as set forth in claim 1, characterized in that: the ball bearing is arranged on two sides of the movable block (14), and the surface of the ball bearing is in rolling connection with the side wall of the sliding groove (15).

8. A scraping apparatus for casting as set forth in claim 1, characterized in that: the rotating block (19) is made of a magnetic material, and the rotating block (19) and the box body are magnetically attracted.

9. A scraping apparatus for casting as set forth in claim 1, characterized in that: and a limiting block is arranged on one side of the connecting rod (18).