Raw material screening equipment for light aggregate concrete brick production

Abstract

The utility model discloses raw material screening equipment for light aggregate concrete brickwork production, and relates to the technical field of building equipment, the raw material screening equipment comprises a screening box and inner cavities arranged on the upper side and the lower side of the screening box, a feeding hopper is arranged on the top wall of the feeding hopper, an eccentric cam is arranged in the inner cavity of the bottom of the feeding hopper, one side wall of the eccentric cam is fixedly connected with a rotating rod, and the other side wall of the rotating rod is fixedly connected with a rotating shaft. A rod body of the rotating rod penetrates through the wall body of the feeding hopper and the wall body of the screening box, a discharging box is arranged in an inner cavity of the bottom of the screening box, a spiral blade is arranged in an inner cavity of the discharging box, and a screening assembly is arranged in an inner cavity of the upper side of the screening box. According to the utility model, the rotating rod drives the eccentric cam to rotate at the bottom outlet of the feeding hopper, so that the condition of blockage during feeding of production raw materials is avoided; the discharging box is arranged in the inner cavity of the bottom of the screening box, uniform discharging can be achieved under conveying of the spiral blades, and then the situation that screened production raw materials are blocked in the discharging process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to building equipment technical field, concretely is a raw material screening equipment for light aggregate concrete brick production. BACKGROUND

[0002] When carrying out bricklaying, concrete needs to be used, and concrete is a kind of building material mixed and stirred by aggregate, cement and water in a certain proportion, has the advantages such as high strength, good durability, low cost, when carrying out the preparation operation of concrete, the particle fineness of concrete raw materials will affect the quality of concrete preparation, at this time, usually, the concrete particle raw materials need to be screened before preparation.

[0003] The Chinese patent with publication number CN222000705U discloses a kind of concrete raw material screening device, it includes support frame, the section of support frame is U-shaped, support frame is set in downward inclination, first mesh plate, second mesh plate and third mesh plate are sequentially set from top to bottom on the bottom plate body of support frame, the aperture of the through hole in first mesh plate, second mesh plate and third mesh plate increases sequentially, top plate is fixedly installed on the top surface of support frame, vibration motor is fixedly installed on top plate, four support sleeves in matrix arrangement are fixedly installed on the bottom surface of support frame, containing chamber is arranged in support sleeve, support leg is inserted into containing chamber, spring is fixedly installed between the top surface of support leg and the top wall of containing chamber, fixed seat is fixedly installed at the bottom end of support leg, the end of support frame is provided with feeding hopper.The utility model is convenient for screening and unloading operation, saves manpower, and is convenient to use.

[0004] But the above patent still has certain inconvenience in actual use, because the inside of feeding hopper, feeding pipe, unloading box and unloading hopper is all set any structural component that helps smooth discharging, in actual production process, often, more raw materials are put in, and not setting structural component that helps smooth discharging is easy to cause the situation that blockage occurs in feeding or discharging process, thereby affecting the production speed of raw materials. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of raw material screening equipment for light aggregate concrete brick production to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A raw material screening equipment for light aggregate concrete brick production, including screening box and the inner chamber of opening in the upper and lower two sides of screening box, the top wall of screening box is equipped with feeding hopper, the bottom inner chamber of feeding hopper is equipped with eccentric cam, one side wall of eccentric cam is fixedly connected with the rotating lever, the rod body of rotating lever is through bearing and penetrates the wall body of feeding hopper and the wall body of screening box, the bottom inner chamber of screening box is equipped with discharge box, the inner chamber of discharge box is equipped with spiral blade, the upper inner chamber of screening box is provided with screening assembly.

[0007] Preferably, the screening assembly includes a screening box disposed in the upper inner chamber of the screening box, both side bottom walls of the screening box are fixedly installed with sliding blocks, the bottom of the screening box is provided with a rectangular frame, both side top walls of the rectangular frame are provided with U-shaped grooves, and the sliding blocks are slidingly connected in the groove cavities of the U-shaped grooves.

[0008] Preferably, the screening assembly further includes horizontal rods disposed on both sides of the bottom of the rectangular frame, both side walls of the horizontal rods are fixed to the inner chamber side walls of the screening box, a groove is formed in the middle rod body surface of the horizontal rod, a guide rod is horizontally fixed in the groove cavity of the rear groove, a movable block is movably sleeved on the rod body surface of the guide rod, a threaded rod is rotatably connected in the groove cavity of the front groove, a reciprocating thread is formed in the middle rod body surface of the threaded rod, both end rod bodies of the threaded rod penetrate through both side walls of the screening box, a moving block is screwed on the reciprocating thread surface of the threaded rod, and a connecting column is fixed between the bottom wall of the rectangular frame and the top wall of the guide rod and the moving block.

[0009] Preferably, both end rod bodies of the rotating lever and one end rod body of the threaded rod are fixedly provided with first belt pulleys, a first belt is sleeved between adjacent first belt pulleys, one side wall of the screening box is fixedly provided with a motor, the output end of the motor is connected with the end rod body of the threaded rod, and both end rod bodies of the threaded rod and the shaft rod end of the spiral blade are fixedly provided with second belt pulleys, a second belt is sleeved between adjacent second belt pulleys.

[0010] Preferably, a conical discharging cavity is formed in the bottom wall of the upper inner chamber of the screening box, the bottom end outlet of the conical discharging cavity is communicated with the left side top wall of the discharge box, and the right side bottom wall of the discharge box is communicated with a discharging cylinder.

[0011] Preferably, guide plates are fixedly installed on both side walls of the upper inner chamber of the screening box.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] This invention uses a first pulley, a first belt, a second pulley, and a second belt to drive a rotating rod to rotate an eccentric cam at the bottom outlet of the feeding hopper, thereby preventing blockages during raw material feeding. By setting a discharge box in the bottom cavity of the screening box, uniform discharge can be achieved under the conveying of the spiral blades inside, thus preventing blockages during the discharge of the screened raw materials. Attached Figure Description

[0014] Figure 1 This is a first-view cross-sectional structural diagram of a raw material screening device for lightweight aggregate concrete bricklaying production according to the present invention.

[0015] Figure 2 This is a second-view cross-sectional structural diagram of a raw material screening device for lightweight aggregate concrete bricklaying production according to the present invention.

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a third-view structural diagram of a raw material screening device for lightweight aggregate concrete bricklaying production according to the present invention.

[0018] In the diagram: 1. Screening box; 2. Feeding hopper; 3. Rotating rod; 4. First belt; 5. First pulley; 6. Motor; 7. Guide plate; 8. Screening box; 9. Crossbar; 10. Conical feeding chamber; 11. Discharge box; 12. Spiral blade; 13. Discharge cylinder; 14. Second pulley; 15. Second belt; 16. Groove; 17. Threaded rod; 18. Moving block; 19. Connecting column; 20. Rectangular frame; 21. U-shaped groove; 22. Sliding block; 23. Guide rod; 24. Movable block; 25. Eccentric cam. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The utility model provides a technical scheme: a raw material screening equipment for light aggregate concrete building brick production, including screening box 1 and the inner chamber of setting in screening box 1 upper and lower both sides, feed hopper 2 is installed in the top wall of screening box 1, eccentric cam 25 is installed in the bottom inner chamber of feed hopper 2, eccentric cam 25's right side wall is welded with the rotation rod 3, the rod body of rotation rod 3 is through bearing and penetrates the right side wall body of feed hopper 2 and the right side wall body of screening box 1, and its purpose is to utilize rotation rod 3 rotation and drive eccentric cam 25 rotation, to avoid the blockage of feed hopper 2 in the discharging process, and the eccentric cam 25 of constantly rotating can avoid raw material accumulation.Feeding box 11 is installed in the bottom inner chamber of screening box 1, and the left end shaft of helical blade 12 is through bearing and penetrates the left side wall of feeding box 11 and the left side wall of screening box 1, and the right end shaft is installed in the inner chamber right side wall of feeding box 11 through bearing, and the upper side inner chamber of screening box 1 is provided with screening assembly for screening and filtering production raw materials.

[0021] The screening assembly comprises a screening box 8 arranged in the inner cavity of the upper side of the screening box 1, the left and right side bottom walls of the screening box 8 are welded with sliding blocks 22, a rectangular frame 20 is arranged at the bottom of the screening box 8, the left and right side top walls of the rectangular frame 20 are provided with U-shaped grooves 21, and the sliding blocks 22 are slidingly connected in the groove cavities of the U-shaped grooves 21, which is convenient for taking out the screening box 8 and cleaning the impurities on the surface of the filter screen. The screening assembly further comprises horizontal rods 9 arranged on the front and rear sides of the bottom of the rectangular frame 20, the left and right side walls of the horizontal rods 9 are welded on the left and right side walls of the inner cavity of the screening box 1, and the middle rod body surface of the horizontal rods 9 is provided with grooves 16, the groove cavities of the grooves 16 on the rear side are horizontally welded with guide rods 23, that is, the left and right rod bodies of the guide rods 23 are welded on the left and right side walls of the groove cavities of the grooves 16 on the rear side. The rod body surface of the guide rods 23 is movably sleeved with movable blocks 24, the middle rod body of a threaded rod 17 is arranged in the groove cavity of the groove 16 on the front side, the left end rod body of the threaded rod 17 penetrates through the left side wall of the horizontal rod 9 and the left side wall of the screening box 1 in sequence through bearings, the right end rod body penetrates through the right side wall of the horizontal rod 9 and the right side wall of the screening box 1 in sequence through bearings, the middle rod body surface of the threaded rod 17 is provided with reciprocating threads, the reciprocating thread surface of the threaded rod 17 is screwed with a moving block 18, which is used for moving the moving block 18 left and right along the reciprocating threads. The connecting columns 19 are welded between the bottom wall of the rectangular frame 20 and the top wall of the guide rods 23 and the moving block 18, which is used for moving the moving block 18 and the screening box 8 left and right at the same time during the movement, so as to realize the screening of the raw materials in the screening box 8. The right end of the rod body of the rotating rod 3 and the right end of the rod body of the threaded rod 17 are welded with first belt pulleys 5, the first belts 4 are sleeved between the adjacent first belt pulleys 5, which is used for rotating the rotating rod 3 and the threaded rod 17 at the same time. The left side wall of the screening box 1 is fixed with a motor 6 through bolts, the output end of the motor 6 is connected with the left end of the rod body of the threaded rod 17 through a shaft coupling, the left end of the rod body of the threaded rod 17 and the left end of the shaft of the helical blade 12 are welded with second belt pulleys 14, the second belts 15 are sleeved between the adjacent second belt pulleys 14, which is used for rotating the helical blade 12 and the threaded rod 17 at the same time. The bottom wall of the upper inner cavity of the screening box 1 is provided with a conical discharging cavity 10, the bottom outlet of the conical discharging cavity 10 is communicated with the left side top wall of a discharging box 11, which is used for discharging the screened raw materials into the discharging box 11. The right side bottom wall of the discharging box 11 is communicated with a discharging cylinder 13 for discharging. The left and right side walls of the upper inner cavity of the screening box 1 are welded with guide plates 7, which is used for the raw materials entering through the feeding hopper 2 to fall into the inside of the screening box 8.

[0022] The threaded rod 17 is rotated by starting the motor 6, under the action of reciprocating thread and guide rod 23, the moving block 18 and the movable block 24 drive the rectangular frame 20 to move back and forth, and then the screening box 8 moves back and forth, the production raw materials are added to the inside of the screening box 1 through the feeding hopper 2, the threaded rod 17 is rotated under the action of the first pulley 5 and the first belt 4 to drive the rotating rod 3 to rotate, the rotating rod 3 drives the eccentric cam 25 to rotate, the continuously rotating eccentric cam 25 can avoid the accumulation of raw materials, avoid the situation that the raw materials are blocked during the feeding process, and facilitate the smooth feeding into the screening box 8, the production raw materials in the screening box 8 are screened and then enter the discharge box 11 through the conical discharge cavity 10, under the action of the second pulley 14 and the second belt 15, the threaded rod 17 is rotated to drive the spiral blade 12 to rotate, and then the screened production raw materials in the discharge box 11 are smoothly discharged through the spiral blade 12, thereby avoiding the situation that the screened production raw materials are blocked during the discharging process.

[0023] It should be noted that, in the present document, relational terms such as first and second and the like can be 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0024] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A raw material screening device for light aggregate concrete block production, comprising a screening box (1) and an inner cavity opened on the upper and lower sides of the screening box (1), characterized in that: The top wall of the screening box (1) is provided with a feeding hopper (2), the bottom inner cavity of the feeding hopper (2) is provided with an eccentric cam (25), one side wall of the eccentric cam (25) is fixedly connected with a rotating rod (3), the rod body of the rotating rod (3) penetrates the wall of the feeding hopper (2) and the wall of the screening box (1) through a bearing, the bottom inner cavity of the screening box (1) is provided with a discharge box (11), the inner cavity of the discharge box (11) is provided with a spiral blade (12), and the upper side inner cavity of the screening box (1) is provided with a screening assembly.

2. The raw material screening apparatus for light weight aggregate concrete block production according to claim 1, characterized in that: The screening assembly comprises a screening box (8) arranged in the upper side inner cavity of the screening box (1), both side bottom walls of the screening box (8) are fixedly provided with sliding blocks (22), the bottom of the screening box (8) is provided with a rectangular frame (20), both side top walls of the rectangular frame (20) are provided with U-shaped grooves (21), and the sliding blocks (22) are slidingly connected in the groove cavities of the U-shaped grooves (21).

3. The raw material screening apparatus for light weight aggregate concrete block production according to claim 2, characterized in that: The screening assembly further comprises horizontal rods (9) arranged at both sides of the bottom of the rectangular frame (20), both side walls of the horizontal rods (9) are fixed to the inner cavities of both side walls of the screening box (1), the middle rod body surface of the horizontal rods (9) is provided with grooves (16), a guide rod (23) is horizontally fixed in the groove cavity of the groove (16) at the rear side, the rod body surface of the guide rod (23) is movably sleeved with a movable block (24), a threaded rod (17) is rotatably connected in the groove cavity of the groove (16) at the front side, the middle rod body surface of the threaded rod (17) is provided with a reciprocating thread, both end rod bodies of the threaded rod (17) penetrate both side walls of the screening box (1) respectively, the reciprocating thread surface of the threaded rod (17) is screwed with a moving block (18), and the bottom wall of the rectangular frame (20) and the top walls of the guide rod (23) and the moving block (18) are fixedly provided with connecting columns (19).

4. The raw material screening apparatus for light weight aggregate concrete block production according to claim 3, characterized in that: The rod body end of the rotating rod (3) and one end of the rod body of the threaded rod (17) are fixedly provided with first belt pulleys (5), first belts (4) are sleeved between adjacent first belt pulleys (5), one side wall of the screening box (1) is fixedly provided with a motor (6), the output end of the motor (6) is connected with the rod body end of the threaded rod (17), the other end rod body of the threaded rod (17) and the shaft rod end of the spiral blade (12) are fixedly provided with second belt pulleys (14), and second belts (15) are sleeved between adjacent second belt pulleys (14).

5. A raw material screening apparatus for light weight aggregate concrete block production according to claim 4, characterized in that: The bottom wall of the upper side inner cavity of the screening box (1) is provided with a conical discharging cavity (10), the bottom end outlet of the conical discharging cavity (10) is communicated with the left side top wall of the discharge box (11), and the right side bottom wall of the discharge box (11) is communicated with a discharge cylinder (13).

6. The raw material screening apparatus for light weight aggregate concrete block production according to claim 1, characterized in that: Both side walls of the upper side inner cavity of the screening box (1) are fixedly provided with guide plates (7).

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