A screening device for concrete prefabricated component production

Abstract

The utility model relates to a kind of screening devices for concrete prefabricated component production, including frame, the inside fixed mounting of frame is equipped with screening bin, the bottom of frame is provided with transmission mechanism, the inside of screening bin is provided with screening mechanism.The screening device for concrete prefabricated component production is set by frame, screening bin, transmission mechanism and screening mechanism, first, raw materials are poured into the inside of screening bin, then screening mechanism is used to screen raw materials, larger raw materials are located at the top of screening mechanism, smaller raw materials fall to the top of transmission mechanism, finally, transmission mechanism is used to transport smaller raw materials, only need to control transmission mechanism, operation is relatively simple, improve use effect, solve the problem of needing to control vibration motor and transmission belt respectively, operation is relatively troublesome, affect use effect.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete component production technology, specifically a screening device for precast concrete component production. Background Technology

[0002] Precast concrete components are building components made from concrete and manufactured in factories using standardized processes. They encompass structural load-bearing components such as beams, slabs, columns, and shear walls, as well as municipal and landscape components like staircases and pipe corridors. The main raw materials for precast concrete components include cement, sand, gravel, and water. During production, the raw materials need to be screened to improve the quality of the precast concrete components.

[0003] According to Chinese Utility Model Patent Application No. 202320390172.9, a raw material screening device for concrete production and processing is proposed. The utility model describes that "by setting a driving mechanism, the screening device has a repeated screening function during use, which can make sand and gravel undergo more fine screening. It avoids the problem that the fine sand is mixed into the coarse sand and discharged before being screened by the filter screen due to the influence of the feeding speed during the screening process, resulting in poor screening effect. The setting of the driving mechanism effectively solves this problem. Compared with traditional screening devices, it is more outstanding in screening effect and more practical."

[0004] The current raw material screening device for concrete production and processing first pours the raw materials into the feed box, then turns on the vibrating motor to drive the vibrating shaft, hinge block, screen plate and vibrating seat to vibrate. Larger raw materials are located at the top of the screen plate, and smaller raw materials pass through the screen plate and fall to the top of the conveyor belt. Finally, the conveyor belt is turned on to transport the smaller raw materials. It is necessary to control the vibrating motor and the conveyor belt separately, which is relatively complicated to operate and affects the use effect. Therefore, a screening device for the production of precast concrete components is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a screening device for the production of precast concrete components, which has advantages such as ease of use and solves the problem that requires separate control of the vibration motor and the conveyor belt, making operation cumbersome and affecting the performance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a screening device for the production of precast concrete components, comprising a frame, a screening chamber fixedly installed inside the frame, a transmission mechanism provided at the bottom of the frame, and a screening mechanism provided inside the screening chamber;

[0007] The transmission mechanism includes two side plates, both of which are fixedly connected to the bottom of the frame. A motor is fixedly installed on the side wall of the screening chamber. The output end of the motor passes through the screening chamber and is fixedly installed with a rotating shaft. The end of the rotating shaft away from the motor output end passes through and extends to the outside of the screening chamber. Two conveying rollers are rotatably installed on the inner side wall of one of the side plates. The ends of the two conveying rollers away from the inner side wall of one of the side plates both pass through and extend to the outside of the other side plate. The ends of the rotating shaft away from the motor output end and the ends of the conveying rollers away from the inner side wall of one of the side plates are rotatably installed with protective shells. Synchronous pulleys are fixedly installed on the outside of the rotating shaft and the outside of one of the conveying rollers. Matching synchronous belts mesh with the outside of the two synchronous pulleys. Matching belts are installed on the outside of the two conveying rollers for common transmission.

[0008] Furthermore, the screening mechanism includes two inclined plates, which are symmetrically and fixedly connected to the inner wall of the screening chamber. The opposite sides of the two inclined plates are parallel to each other. A fixing plate is fixedly installed on the opposite side of each of the two inclined plates. A spring is fixedly installed on the top of each of the two fixing plates. A moving plate is fixedly installed on the top of each spring. A moving frame is fixedly installed on the top of both moving plates. An installation plate located inside the moving frame can be detachably installed on the top of each of the two moving plates. A filter screen located inside the moving frame is fixedly installed on the opposite side of each of the two installation plates. An impact member for colliding with the filter screen is provided on the outside of the rotating shaft.

[0009] Furthermore, the impact component includes a connecting rod, which is fixedly connected to the outside of the rotating shaft. An impact head is fixedly installed at the end of the connecting rod away from the rotating shaft, and the impact head is made of a deformable material.

[0010] Furthermore, both conveying rollers are rotatably connected to the side plate via a first bearing, and both conveying rollers are rotatably connected to the protective shell via a second bearing.

[0011] Furthermore, each of the two movable plates has a movable block fixedly installed on its opposite side, extending into the inclined plate. Each of the two inclined plates has a movable groove matching the movable block on its opposite side. The cross-section of the movable block and the cross-section of the movable groove are uniformly T-shaped.

[0012] Furthermore, both mounting plates are threadedly connected to the moving plate by bolts, the inner wall of the screening chamber and the opposite side of the two inclined plates are in contact with the outer wall of the moving plate, and the outer walls of the two mounting plates and the outer wall of the filter screen are in contact with the inner wall of the moving plate.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This screening device for producing precast concrete components consists of a frame, a screening chamber, a conveying mechanism, and a screening mechanism. The raw materials are first poured into the screening chamber, and then the screening mechanism is used to screen them. Larger materials are located at the top of the screening mechanism, while smaller materials fall to the top of the conveying mechanism. Finally, the conveying mechanism is used to transport the smaller materials. Only the conveying mechanism needs to be controlled, making the operation simple and improving the efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 This is a rear view of the present invention;

[0017] Figure 3 This is a partial rear view of the present invention;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a partial schematic diagram of the screening mechanism of this utility model.

[0020] In the diagram: 1. Frame; 2. Screening chamber; 3. Conveying mechanism; 31. Side plate; 32. Motor; 33. Rotating shaft; 34. Conveying roller; 35. Protective shell; 36. Synchronous pulley; 37. Synchronous belt; 38. Belt; 4. Screening mechanism; 41. Inclined plate; 42. Fixed plate; 43. Spring; 44. Moving plate; 45. Moving frame; 46. Mounting plate; 47. Filter screen; 48. Impact component. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 The screening device for producing precast concrete components in this embodiment includes a frame 1, a screening chamber 2 fixedly installed inside the frame 1, a transmission mechanism 3 at the bottom of the frame 1, and a screening mechanism 4 inside the screening chamber 2.

[0023] Specifically, the raw materials are first poured into the screening chamber 2, and then the screening mechanism 4 is used to screen the raw materials. Larger raw materials are located at the top of the screening mechanism 4, and smaller raw materials fall to the top of the conveying mechanism 3. Finally, the conveying mechanism 3 is used to convey the smaller raw materials. Only the conveying mechanism 3 needs to be controlled, making the operation relatively simple and improving the usage effect.

[0024] In this embodiment, the transmission mechanism 3 includes two side plates 31, both with U-shaped cross-sections. Both side plates 31 are fixedly connected to the bottom of the frame 1. Two bases are fixedly installed at the bottom of each side plate 31. A motor 32 is fixedly installed on the side wall of the screening chamber 2. The output end of the motor 32 passes through the screening chamber 2 and is fixedly mounted with a rotating shaft 33. The end of the rotating shaft 33 away from the output end of the motor 32 passes through and extends to the outside of the screening chamber 2. Two conveying rollers 34 are rotatably installed on the inner wall of the right side plate 31. Both conveying rollers 34 are rotatably connected to the right side plate 31 via a first bearing. The two conveying rollers 34 are located away from the inner wall of the right side plate 31. One end of each roller 33 extends through and to the outside of the left side plate 31. The end of the rotating shaft 33 away from the output end of the motor 32 and the end of the conveying roller 34 away from the inner wall of the right side plate 31 are rotatably mounted with a protective shell 35. Both conveying rollers 34 are rotatably connected to the protective shell 35 through a second bearing. Synchronous pulleys 36 are fixedly mounted on the outside of the rotating shaft 33 and the outside of the front conveying roller 34. The two synchronous pulleys 36 are meshed with a matching synchronous belt 37. The diameter of the synchronous pulley 36 outside the front conveying roller 34 is larger than the diameter of the synchronous pulley 36 outside the rotating shaft 33. The two conveying rollers 34 are driven by a matching belt 38.

[0025] Specifically, by turning on the motor 32, the motor 32 drives the rotating shaft 33 to rotate, and the rotating shaft 33 drives the two synchronous pulleys 36, the synchronous belt 37, the two conveying rollers 34 and the belt 38 to rotate, and the belt 38 transports smaller raw materials.

[0026] In this embodiment, the screening mechanism 4 includes two inclined plates 41, which are symmetrically fixedly connected to the inner wall of the screening chamber 2. The opposite sides of the two inclined plates 41 are parallel to each other. A fixed plate 42 is fixedly installed on the opposite side of each of the two inclined plates 41. Three springs 43 are fixedly installed on the top of each of the two fixed plates 42. A movable plate 44 is fixedly installed on the top of the three springs 43. Two movable blocks extending into the inclined plates 41 are fixedly installed on the opposite side of each of the two movable plates 44. Movable grooves matching the movable blocks are opened on the opposite side of each of the two inclined plates 41. The cross-sections of the movable blocks and the movable grooves are uniformly T-shaped. A movable frame 45 is fixedly installed on the top of each of the two movable plates 44. A movable frame 45 located on the top of each of the two movable plates 44 can be detachably installed. The two mounting plates 46 inside the moving frame 45 are threadedly connected to the moving plate 44 by bolts. The filter screen 47 located inside the moving frame 45 is fixedly installed on the opposite side of the two mounting plates 46. The inner side wall of the screening chamber 2 and the opposite side of the two inclined plates 41 are in contact with the outer side wall of the moving plate 44. The outer side walls of the two mounting plates 46 and the outer side wall of the filter screen 47 are in contact with the inner side wall of the moving plate 44. Multiple impact members 48 for colliding with the filter screen 47 are provided on the outside of the rotating shaft 33. Each of the multiple impact members 48 includes a connecting rod. The multiple connecting rods are fixedly connected to the outside of the rotating shaft 33 in a ring at equal intervals. An impact head is fixedly installed on the end of the multiple connecting rods away from the rotating shaft 33. The multiple impact heads are made of deformable material, such as rubber.

[0027] Specifically, by turning on the motor 32, the motor 32 drives the rotating shaft 33 to rotate. The rotating shaft 33 drives multiple impacting parts 48 to alternately collide with the filter screen 47. The filter screen 47 drives the two mounting plates 46, the moving frame 45, and the two moving plates 44 to move upward. The two moving plates 44 stretch the six springs 43. The six springs 43 deform under the force. When the six springs 43 recover their deformation, they drive the two moving plates 44, the moving frame 45, the two mounting plates 46, and the filter screen 47 to move downward. During the repeated up and down movement, the filter screen 47 screens the raw materials. Larger raw materials are located at the top of the filter screen 47, while smaller raw materials pass through the filter screen 47 and fall onto the top of the belt 38.

[0028] The working principle of the above embodiments is as follows:

[0029] First, the raw materials are poured into the screening chamber 2. Then, the motor 32 is turned on, and the motor 32 drives the rotating shaft 33 to rotate. The rotating shaft 33 not only drives multiple impacting parts 48 to alternately collide with the filter screen 47, but also drives the two mounting plates 46, the moving frame 45, and the two moving plates 44 to move upward. The two moving plates 44 stretch the six springs 43, causing the six springs 43 to deform under force. When the six springs 43 recover their deformation, they drive the two moving plates 44, the moving frame 45, the two mounting plates 46, and the filter screen 47 to move downward. During the repeated up and down movement, the filter screen 47 screens the raw materials. Larger raw materials are located at the top of the filter screen 47, while smaller raw materials pass through the filter screen 47 and fall onto the top of the belt 38. The rotating shaft 33 also drives the two synchronous pulleys 36, the synchronous belt 37, the two conveying rollers 34, and the belt 38 to rotate. The belt 38 transports the smaller raw materials. Only the transmission mechanism 3 needs to be controlled, making the operation simple and improving the efficiency.

[0030] It should be noted that all electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0031] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening device for producing precast concrete components, comprising a frame (1), wherein a screening chamber (2) is fixedly installed inside the frame (1), a conveying mechanism (3) is provided at the bottom of the frame (1), and a screening mechanism (4) is provided inside the screening chamber (2), characterized in that: The transmission mechanism (3) includes two side plates (31), both of which are fixedly connected to the bottom of the frame (1). A motor (32) is fixedly installed on the side wall of the screening chamber (2). The output end of the motor (32) passes through the screening chamber (2) and is fixedly mounted with a rotating shaft (33). The end of the rotating shaft (33) away from the output end of the motor (32) passes through and extends to the outside of the screening chamber (2). Two conveying rollers (34) are rotatably installed on the inner side wall of one of the side plates (31). The two conveying rollers (34) are away from one of the side plates (31). One end of the inner sidewall extends through and to the outside of the other side plate (31). The end of the rotating shaft (33) away from the output end of the motor (32) and the end of the conveying roller (34) away from the inner sidewall of one of the side plates (31) are rotatably mounted with a protective shell (35). The outside of the rotating shaft (33) and the outside of one of the conveying rollers (34) are fixedly mounted with synchronous pulleys (36). The outside of the two synchronous pulleys (36) are meshed with a matching synchronous belt (37). The outside of the two conveying rollers (34) are driven by a matching belt (38).

2. The screening device for producing precast concrete components according to claim 1, characterized in that: The screening mechanism (4) includes two inclined plates (41), which are symmetrically fixedly connected to the inner wall of the screening chamber (2). The opposite sides of the two inclined plates (41) are parallel to each other. A fixed plate (42) is fixedly installed on the opposite side of each of the two inclined plates (41). A spring (43) is fixedly installed on the top of each of the two fixed plates (42). A movable plate (44) is fixedly installed on the top of the spring (43). A movable frame (45) is fixedly installed on the top of the two movable plates (44). An installation plate (46) located inside the movable frame (45) can be detachably installed on the top of the two movable plates (44). A filter screen (47) located inside the movable frame (45) is fixedly installed on the opposite side of the two installation plates (46). An impact member (48) for colliding with the filter screen (47) is provided on the outside of the rotating shaft (33).

3. The screening device for producing precast concrete components according to claim 2, characterized in that: The impact member (48) includes a connecting rod, which is fixedly connected to the outside of the rotating shaft (33). An impact head is fixedly installed at the end of the connecting rod away from the rotating shaft (33), and the impact head is made of a deformable material.

4. The screening device for producing precast concrete components according to claim 1, characterized in that: Both conveying rollers (34) are rotatably connected to the side plate (31) via the first bearing, and both conveying rollers (34) are rotatably connected to the protective shell (35) via the second bearing.

5. The screening device for producing precast concrete components according to claim 2, characterized in that: Each of the two movable plates (44) has a movable block fixedly installed on the opposite side, extending into the interior of the inclined plate (41). Each of the two inclined plates (41) has a movable groove matching the movable block on the opposite side. The cross-section of the movable block and the cross-section of the movable groove are uniformly T-shaped.

6. The screening device for producing precast concrete components according to claim 2, characterized in that: Both mounting plates (46) are threadedly connected to the moving plate (44) by bolts. The inner sidewall of the screening chamber (2) and the opposite side of the two inclined plates (41) are in contact with the outer sidewall of the moving plate (44). The outer sidewalls of the two mounting plates (46) and the outer sidewall of the filter screen (47) are in contact with the inner sidewall of the moving plate (44).

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