CN110421117A - A kind of machining production sand mixer - Google Patents

Abstract

The invention is a sand mixer for mechanical processing and production, which includes a machine case, on which a lower material cylinder, an anti-blocking device, a stirring shaft A, a stirring motor A, a stirring shaft B, a stirring motor B, an inner wall cleaning device, and sand materials are arranged. Crushing device, curing agent supply device and screw conveying device. The invention not only facilitates feeding the raw materials into the cabinet by setting the screw conveying device and the sand crushing device, but also can crush the agglomerated raw materials to avoid uneven mixing of the agglomerated materials and the curing agent; at the same time, the horizontally arranged stirring shaft A And two stirring shafts B with water outlet holes make the curing agent and raw materials mix more evenly; then the inner wall cleaning device facilitates cleaning of the inner wall, avoiding waste of raw materials and damage to the sand mixer; finally, the anti-blocking device can avoid unloading When the raw material blocks the lower barrel, the work efficiency will drop.

Description

Sand mixer for machining production

technical field

The invention relates to the technical field of sand mixers, in particular to a sand mixer for machining production.

Background technique

As a device for mixing molding sand, the sand mixer is widely used in the mechanical foundry processing industry. During the sand mixing process of the traditional sand mixer, the binder will bond the molding sand to the inner wall of the sand mixer shell. , when unloading the sand, it may not be possible to completely unload the mixed molding sand, and it will stick to the sand mixer shell for a long time. After the molding sand hardens, it will become very troublesome to remove it from the sand mixer shell. Clean up in time. When the sand is mixed next time, hard particles will be produced in the molding sand, which cannot meet the requirements of use, which also causes a waste of molding sand resources. Some operators prevent the molding sand from sticking to the sand mixer by beating the sand mixer shell. On the shell, it is easy to cause damage to the sand mixer and affect the service life of the sand mixer.

Contents of the invention

The invention aims to solve the deficiencies of the prior art, and provides a sand mixer for machining production.

In order to achieve the above object, the present invention adopts the following technical solutions:

A sand mixer for mechanical processing and production, including a chassis, the bottom of the chassis is provided with outriggers, the middle of the bottom of the chassis is provided with a lowering barrel, the top of the lowering barrel is equipped with a gate valve, and one side of the lowering barrel is equipped with an anti-blocking device. The bottom end of the other side of the lower barrel is provided with a discharge port, and the lower part of the cabinet is horizontally provided with a stirring shaft A that is connected to the inner wall of the cabinet at one end. On the stirring shaft A, a number of stirring blades are arranged in dislocation through connecting rods. The other end runs through the side wall of the case and is connected with a stirring motor A. Two hollow stirring shafts B are vertically arranged in the case above the stirring shaft A. The bottom end of the stirring shaft B is connected to the inner wall of the case through a bracket. There are a number of hollow stirring paddles connected to the stirring shaft B. There are several water outlet holes on the bottom surface of the stirring paddles and a filter screen is provided at the water outlet holes. The stirring paddles on the two stirring shafts B are misplaced with each other. The top surface is connected with a sprocket, and the top surface of the cabinet is provided with a stirring motor B through a bracket. The output shaft of the stirring motor B is connected to the sprocket through a chain. There is an inner wall cleaning device in the cabinet below the feed inlet, a sand crushing device is installed on the inner wall of the cabinet above the feed inlet, and a curing agent supply device is installed on the side wall of the cabinet on the side of the stirring motor A. The curing agent supply device The output end of the pump is connected to the top of the stirring shaft B through a pipeline in a rotating and sealed manner. A screw conveying device is provided on the side away from the stirring motor A outside the cabinet, and the top of one side of the screw conveying device communicates with the feed inlet.

In particular, the anti-blocking device includes a U-shaped rod and a sleeve arranged at the bottom end of the lower barrel away from the discharge port. One rod of the U-shaped rod is slidably connected with the sleeve, and the other rod runs through the bottom of the lower barrel. On the bottom of the barrel, there are a number of arch breakers on the U-shaped rod in the lower barrel. The upper part of the U-shaped rod that is slidingly connected with the sleeve is provided with a rack on the side away from the other rod. The bottom of the chassis passes through The support rotates and is provided with a runner, and the outer edge of the runner is provided with gear teeth meshed with the rack. The bottom surface of the cabinet is also provided with an anti-blocking motor, and the anti-blocking motor is connected to the runner through a belt.

In particular, the arch breaker includes four strip-shaped plates, one end of the four strip-shaped plates is evenly distributed around the circumference and fixed to the U-shaped bar, and one end of the strip-shaped plate fixed to the U-shaped bar is higher than the other end.

In particular, the inner wall cleaning device includes two U-shaped cleaning rods matched with the inner wall of the case, cleaning rods are provided with cleaning brushes on the side close to the inner wall of the case, hydraulic cylinders are provided on both sides of the top surface of the case, and the piston rod of the hydraulic cylinder runs through the case The top surface is fixedly connected with the side of the top surface of the cleaning rod away from the stirring shaft B.

In particular, the hydraulic cylinder is a multi-stage telescopic telescopic hydraulic cylinder.

In particular, the sand crushing device includes a crushing motor arranged on the outer wall of the cabinet above the feed inlet, the output shaft of the crushing motor penetrates through the side wall of the cabinet and is connected with a crushing blade.

In particular, the curing agent supply device includes a raw material box and a delivery pump arranged on the side wall of the cabinet, the input end of the delivery pump communicates with the bottom of the raw material box through a pipeline, and the output end of the delivery pump is sealed with the top of the stirring shaft B through a pipeline and It is connected by rotation, and the top surface of the raw material box is provided with a liquid inlet pipe.

In particular, the screw conveying device includes a conveying pipe arranged on the side wall of the case, the outer bottom surface of the conveying pipe is provided with a conveying motor, the output shaft of the conveying motor extends into the conveying pipe and is connected with a feeding auger, and the conveying pipe is close to the side of the case The top is provided with a hole communicating with the feeding port, and the bottom end of the other side of the conveying pipe is provided with a feeding hopper.

The beneficial effects of the present invention are: the present invention not only facilitates sending the raw materials into the inside of the cabinet by setting the screw conveying device and the sand crushing device, but also can crush the agglomerated raw materials to avoid uneven mixing of the agglomerated materials and the curing agent; At the same time, the horizontally arranged stirring shaft A and two stirring shafts B with outlet holes make the mixing of curing agent and raw materials more uniform; then the inner wall cleaning device facilitates cleaning of the inner wall, avoiding waste of raw materials and damage to the sand mixer; finally The anti-blocking device can avoid the reduction of work efficiency caused by the material blocking the feeding cylinder during feeding.

Description of drawings

Fig. 1 is a structural representation of the present invention;

In the figure: 1-chassis; 2-lower barrel; 3-stirring shaft A; 4-stirring plate; 5-stirring motor A; 6-stirring shaft B; 7-stirring paddle; 8-sprocket; 9-stirring motor B; 10-U-shaped rod; 11-casing; 12-runner; 13-anti-blocking motor; 14-bar plate; 15-cleaning rod; 16-hydraulic cylinder; 17-crushing motor; 18-crushing blade; 19-raw material box; 20-conveying pump; 21-conveying pipe; 22-conveying motor; 23-feeding auger; 24-feeding hopper;

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Figure 1, a sand mixer for mechanical processing and production includes a chassis 1, the bottom of the chassis 1 is provided with legs, the middle of the bottom of the chassis 1 is provided with a lower barrel 2, and the top of the lower barrel 2 is provided with a gate valve. One side of the lower material cylinder 2 is provided with an anti-blocking device, and the bottom end of the other side of the lower material cylinder 2 is provided with a discharge port. The lower part of the cabinet 1 is horizontally provided with a stirring shaft A3 that is connected to the inner wall of the cabinet 1 at one end. On A3, a number of stirring blades 4 are dislocated through connecting rods. The other end of the stirring shaft A3 runs through the side wall of the cabinet 1 and is connected to the stirring motor A5. Two hollow stirring shafts B6 are vertically arranged in the cabinet 1 above the stirring shaft A3. The bottom end of the stirring shaft B6 is rotatably connected with the inner wall of the cabinet 1 through a bracket. The stirring shaft B6 is provided with a number of hollow stirring paddles 7 connected with the stirring shaft B6. The bottom surface of the stirring paddle 7 is provided with a number of water outlet holes and a filter screen is provided at the water outlet holes. , the stirring paddles 7 on the two stirring shafts B6 are mutually misplaced, the top of the stirring shaft B6 runs through the top surface of the cabinet 1 and is connected with the sprocket 8, the top surface of the cabinet 1 is provided with a stirring motor B9 through a bracket, and the output shaft of the stirring motor B9 The transmission connection between the chain and the sprocket 8, the upper part of the side wall of the cabinet 1 away from the stirring motor A5 is provided with a feed inlet, the cabinet 1 below the feed inlet is provided with an inner wall cleaning device, and the inner wall of the cabinet 1 above the feed inlet is provided with a cleaning device. A sand crushing device is provided, and a curing agent supply device is provided on the side wall of the cabinet 1 located on the side of the stirring motor A5. The output end of the curing agent supply device is connected to the top of the stirring shaft B6 through a pipeline to rotate and seal, and the outside of the cabinet 1 is far away from the stirring One side of the motor A5 is provided with a screw conveying device, and the top of one side of the screw conveying device communicates with the feed inlet.

In particular, the anti-blocking device includes a U-shaped rod 10 and a sleeve 11 arranged at the bottom of the lower barrel 2 away from the discharge port. One pole of the U-shaped rod 10 is slidably connected to the sleeve 11, and the other The root pole runs through the bottom surface of the lower barrel 2, and the U-shaped bar 10 in the lower barrel 2 is provided with several arch breakers. A rack is provided on one side, and the bottom surface of the cabinet 1 is rotated by a bracket to be provided with a runner 12. The outer edge of the runner 12 is provided with gear teeth meshing with the rack. The bottom surface of the cabinet 1 is also provided with an anti-blocking motor 13. 13 is connected with running wheel 12 transmissions by belt.

In particular, the arch breaker includes four strip-shaped plates 14, one end of the four strip-shaped plates 14 is fixed on the U-shaped bar 10 uniformly distributed around the circumference, and one end of the strip-shaped plate 14 and the U-shaped bar 10 are fixed. higher than the other end.

In particular, the inner wall cleaning device includes two U-shaped cleaning rods 15 matched with the inner wall of the cabinet 1, cleaning rods 15 are provided with cleaning brushes on the side close to the inner wall of the cabinet 1, and hydraulic cylinders 16 are arranged on both sides of the top surface of the cabinet 1, and the hydraulic pressure The piston rod of the cylinder 16 penetrates the top surface of the cabinet 1 and is fixedly connected to the top surface of the cleaning rod 15 away from the side of the stirring shaft B6.

In particular, the hydraulic cylinder 16 is a multi-stage telescopic telescopic hydraulic cylinder.

In particular, the sand crushing device includes a crushing motor 17 arranged on the outer wall of the cabinet 1 above the feed inlet. The output shaft of the crushing motor 17 runs through the side wall of the cabinet 1 and is connected with a crushing blade 18 .

Specifically, the curing agent supply device includes a raw material box 19 and a delivery pump 20 arranged on the side wall of the cabinet 1. The input end of the delivery pump 20 communicates with the bottom of the raw material box 19 through a pipeline, and the output end of the delivery pump 20 communicates with the stirring material box 19 through a pipeline. The top end of the shaft B6 is sealed and connected in rotation, and the top surface of the raw material box 19 is provided with a liquid inlet pipe.

In particular, the screw conveying device includes a conveying pipe 21 arranged on the side wall of the cabinet 1, the outer bottom surface of the conveying pipe 21 is provided with a conveying motor 22, and the output shaft of the conveying motor 22 extends into the conveying pipe 21 and is connected with a feeding auger 23. The top of the delivery pipe 21 close to the cabinet 1 is provided with a hole communicating with the feed inlet, and the bottom end of the other side of the delivery pipe 21 is provided with a feed hopper 24 .

When the present invention is in use, materials such as molding sand are poured into the feeding hopper 24, and then the conveying motor 22 drives the feeding auger 23 to rotate so that the raw materials rise and enter the cabinet 1 through the feeding port, and when the raw materials fall from the feeding port, The crushing motor 17 drives the crushing blade 18 to crush the raw materials to prevent the agglomerated raw materials in the raw materials from entering the cabinet 1, and the raw materials entering the cabinet 1 are fully stirred by the stirring blade 4 driven by the stirring motor A5 and the stirring paddle 7 driven by the stirring motor B9 , when stirring, the delivery pump 20 sprays the liquid raw materials such as the solidifying agent in the raw material box 19 through the water outlet hole on the stirring paddle 7, so that the solidifying agent and the raw material are fully mixed, and after the mixing is completed, the gate valve on the lower barrel 2 is opened. The raw material starts to be discharged from the discharge port on the lower material barrel 2. During the discharge process, the anti-blocking motor 13 rotates to make the runner 12 rotate, and the teeth provided on the upper part of the runner 12 lift the U-shaped bar 10. At this time The arch breaker can break the arched material in the lower barrel 2, and the U-shaped bar 10 descends with the discharge of the raw material, and then repeats the arch breaking operation; after the raw material is discharged, the hydraulic cylinder 16 is activated, and the cleaning rod 15 descends to clean the arch. The brush cleans the residual raw materials on the inner wall of the cabinet 1 to avoid waste of raw materials and damage to equipment.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods, as long as the various improvements of the method concept and technical solutions of the present invention are adopted, or directly applied to other Occasions, all within the protection scope of the present invention.

Claims (8)

1. A sand mixer for mechanical processing and production, characterized in that it comprises a cabinet (1), the bottom surface of the cabinet (1) is provided with legs, the middle part of the bottom surface of the cabinet (1) is provided with a lower barrel (2), and the bottom surface of the cabinet (1) is provided with a lower barrel (2). A gate valve is provided on the top of the material cylinder (2), an anti-blocking device is provided on one side of the lower material cylinder (2), and a discharge port is provided at the bottom end of the other side of the lower material cylinder (2). The lower part of the chassis (1) is horizontal There is a stirring shaft A (3) that is rotatably connected to the inner wall of the cabinet (1) at one end, a number of stirring blades (4) are arranged on the stirring shaft A (3) through the dislocation of connecting rods, and the other end of the stirring shaft A (3) runs through the cabinet (1) Stirring motor A (5) is connected to the side wall, two hollow stirring shafts B (6) are vertically arranged in the cabinet (1) above the stirring shaft A (3), and the bottom of the stirring shaft B (6) The end is rotatably connected with the inner wall of the cabinet (1) through a bracket, the stirring shaft B (6) is provided with several hollow stirring paddles (7) connected with the stirring shaft B (6), and the bottom surface of the stirring paddle (7) is provided with several water outlet holes and There is a filter screen at the water outlet, and the stirring paddles (7) on the two stirring shafts B (6) are misaligned with each other. The top of the stirring shaft B (6) runs through the top surface of the chassis (1) and is connected to the sprocket (8) , the top surface of the cabinet (1) is provided with a stirring motor B (9) through a bracket, the output shaft of the stirring motor B (9) is connected to the sprocket (8) through a chain, and the cabinet (1) is far away from the stirring motor A (5 ) is provided with a feeding port on the upper side wall, and an inner wall cleaning device is provided in the cabinet (1) below the feeding port, and a sand crushing device is provided on the inner wall of the cabinet (1) above the feeding port, which is located in the stirring motor A ( 5) The side wall of the chassis (1) on one side is equipped with a curing agent supply device, the output end of the curing agent supply device is connected to the top of the stirring shaft B (6) through a pipeline to rotate and seal it, and the outside of the chassis (1) is far away from the stirring motor A (5) One side is provided with a screw conveying device, and the top of one side of the screw conveying device communicates with the feed inlet. 2. A sand mixer for machining production according to claim 1, characterized in that, the anti-blocking device includes a U-shaped rod (10) and a side of the lower barrel (2) away from the discharge port. The sleeve pipe (11) at the bottom, a support rod of the U-shaped bar (10) is slidably connected with the sleeve pipe (11), and the other support rod runs through the bottom surface of the lower material barrel (2). The U-shaped bar (10) is provided with several arch breakers, and the upper part of the U-shaped bar (10) that is slidingly connected with the casing (11) is provided with a rack on the side away from the other support bar, and the chassis (1 ) bottom surface is rotated by the support to be provided with runner (12), and the outer edge part of runner (12) is provided with the gear tooth that meshes with rack, and the bottom surface of cabinet (1) is also provided with anti-blocking motor (13), and anti-blocking motor (13) is connected with running wheel (12) transmission by belt. 3. A kind of sand mixer for machining production according to claim 2, characterized in that, the arch breaker comprises four strip plates (14), and one end of the four strip plates (14) is in the shape of a circle Evenly distributed and fixed on the U-shaped bar (10), one end of the strip plate (14) fixed to the U-shaped bar (10) is higher than the other end. 4. A kind of sand mixer for machining production according to claim 1, characterized in that, the inner wall cleaning device comprises two U-shaped cleaning rods (15) matched with the inner wall of the cabinet (1), the cleaning rods ( 15) A cleaning brush is provided on the side near the inner wall of the case (1), and a hydraulic cylinder (16) is provided on both sides of the top surface of the case (1), and the piston rod of the hydraulic cylinder (16) penetrates the top surface of the case (1) and connects with the cleaning rod. (15) The top surface is fixed on the side away from the stirring shaft B (6). 5. A sand mixer for machining production according to claim 4, characterized in that, the hydraulic cylinder (16) is a multi-stage telescopic telescopic hydraulic cylinder. 6. A kind of sand mixer for machining production according to claim 1, characterized in that, the sand crushing device comprises a crushing motor (17) arranged on the outer wall of the cabinet (1) above the feed inlet, The output shaft of the crushing motor (17) runs through the side wall of the cabinet (1) and is connected with a crushing blade (18). 7. The sand mixer for mechanical processing production according to claim 1, characterized in that, the curing agent supply device comprises a raw material box (19) and a delivery pump (20) arranged on the side wall of the cabinet (1) , the input end of the delivery pump (20) communicates with the bottom of the raw material box (19) through the pipeline, and the output end of the delivery pump (20) is sealed and rotationally connected with the top of the stirring shaft B (6) through the pipeline, and the raw material box (19) The top surface is provided with a liquid inlet pipe. 8. A kind of sand mixer for machining production according to claim 1, characterized in that, the screw conveying device comprises a conveying pipe (21) arranged on the side wall of the cabinet (1), the conveying pipe (21) Outer bottom surface is provided with conveying motor (22), and the output shaft of conveying motor (22) stretches in the conveying pipe (21) and is connected with feeding auger (23), and conveying pipe (21) is arranged near the top of one side of cabinet (1). There is a hole communicated with the feeding port, and the bottom end of the other side of the conveying pipe (21) is provided with a feeding hopper (24).