Batching machine for concrete production

Abstract

The utility model discloses a batching machine for concrete production, which relates to the technical field of concrete production and particularly comprises a rack, a batching bin is arranged at the top end of the rack, a weighing structure is arranged at the bottom end of the rack, a metal screening structure is arranged between the weighing structure and the bottom of the batching bin, and a conveying belt is arranged below the weighing structure. The metal screening structure comprises a double-head air cylinder connected with the batching bin, an adsorption plate and a collecting box located below the adsorption plate. According to the batching machine for concrete production, through the arrangement of the weighing structure, the impact force of concrete production aggregate on the weighing scale can be reduced, the service life of the weighing scale is prolonged, the batching machine can accurately weigh the aggregate, and the use precision of the batching machine is guaranteed. And through the arrangement of the metal screening structure, metal impurities with ferromagnetic properties among the raw materials can be removed through the adsorption plate, and the metal impurities are prevented from damaging the conveying belt or the weighing hopper.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete production technical field, concretely is a batching machine for concrete production. BACKGROUND

[0002] The concrete batching machine is one of main parts in the complete equipment of the full-automatic concrete mixing station, is used for storing and measuring various sandstone aggregate, and according to the formula set in advance, various sandstone aggregate is transported to the mixer.

[0003] In the related art, the raw material usually adopts the free-fall mode and falls into the weighing hopper when the concrete batching machine is used, but the raw material impacts the weighing hopper in the falling process, the impact force is further transmitted to the weighing scale below the weighing hopper, the weighing scale is easily damaged, and the raw material may contain metal impurities such as steel bars, the metal impurities fall along with the sandstone aggregate, and the weighing hopper or the conveying belt is easily damaged; based on this, the present application provides a batching machine for concrete production. UTILITY MODEL CONTENTS

[0004] The utility model provides a batching machine for concrete production, solves the problem that the raw material falling in the batching process in the above background art impacts the weighing scale, the weighing scale is easily damaged, the raw material preparation accuracy is affected, and the metal impurities contained in the raw material easily damage the weighing hopper or the conveying belt.

[0005] The utility model provides the following technical scheme: a batching machine for concrete production, including the frame, the top of frame is provided with batching bin, the bottom of frame is provided with weighing structure, is equipped with metal screening structure between weighing structure and the bottom of batching bin, the bottom of weighing structure is equipped with conveying belt;

[0006] The metal screening structure includes a double-head cylinder connected with the batching bin, an adsorption plate and a collection box located below the adsorption plate, both output shaft ends of the double-head cylinder are connected with the adsorption plate, the discharge end of the batching bin is located between the two adsorption plates, and the inner cavity of the adsorption plate is uniformly provided with an electromagnet one;

[0007] The weighing structure includes a bottom plate connected with the frame, a support frame connected with the top of the bottom plate through a hydraulic telescopic rod two, a weighing scale connected with the middle of the top of the bottom plate and a weighing hopper clamped with the top of the weighing scale, the weighing scale is located in the inner cavity of the support frame, the top of the support frame is fixedly connected with an electromagnet two, when the electromagnet two is in the electrified state, the electromagnet two and the bottom of the weighing hopper are magnetically attracted, one side of the weighing hopper is provided with a discharge port, the outer side of the discharge port is provided with a guide chute, the discharge port is sealed through the opening and closing structure one, and the other end of the weighing hopper is connected with a push plate matched with the discharge port through an electric telescopic rod one.

[0008] Preferably, the bottom of the ingredient bin is provided with a discharge port, the discharge port is sealed by an opening and closing structure two, the opening and closing structure two comprises an opening and closing plate matched with the bottom of the ingredient bin and a hydraulic telescopic rod one connected with the opening and closing plate, and the hydraulic telescopic rod one is connected with the ingredient bin.

[0009] Preferably, the two sides of the rack are provided with support plates matched with the collecting box, the support plate comprises a bearing plate, a limiting rod connected with the top of the bearing plate and a positioning plate connected with the bearing plate, and the positioning plate and the limiting rod form a character-shaped structure matched with the collecting box.

[0010] Preferably, the opening and closing structure one comprises a baffle matched with the discharge port, the baffle is connected with the weighing hopper through an electric telescopic rod two, the two sides of the inner cavity of the material guide groove are fixedly connected with stoppers, and the stoppers and the weighing hopper form a gap matched with the baffle.

[0011] Preferably, the bottom of the inner cavity of the weighing hopper and the inner side of the adsorption plate are provided with isolation pads, the other end of the weighing hopper is fixedly connected with a positioning rod, and the positioning rod is matched with the pushing plate.

[0012] Preferably, the top of the weighing scale is fixedly connected with a supporting plate, the supporting plate is provided with a clamping groove, and the bottom of the weighing hopper is provided with a clamping column matched with the clamping groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、The concrete production ingredient machine, through the setting of the weighing structure, the weighing hopper in the front material falling time period is supported by the supporting frame, the impact force of the concrete production aggregate on the weighing scale can be reduced, the weighing hopper in the rear material falling time period is supported by the weighing scale, the aggregate can be accurately weighed by the ingredient machine, the use precision of the ingredient machine is guaranteed, and the isolation pads and the aggregate in the weighing hopper can buffer the aggregate falling continuously, the influence of the aggregate falling continuously on the weighing scale is reduced, and the service life of the weighing scale is prolonged.

[0015] 2、The concrete production ingredient machine, through the setting of the metal screening structure, the metal impurities with ferromagnetic properties between raw materials can be adsorbed by the adsorption plate in the falling process, the metal impurities can be prevented from damaging the conveying belt or the weighing hopper, and the metal impurities can be prevented from affecting the concrete production quality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the structure of the utility model;

[0017] Figure 2 It is a back view of the structure of the utility model;

[0018] Figure 3This is a bottom view of the material mixing silo structure of this utility model;

[0019] Figure 4 This is a schematic diagram of how the structural support plate of this utility model supports the collection box;

[0020] Figure 5 This is a schematic diagram of the internal structure of the adsorption plate of this utility model;

[0021] Figure 6 This is a schematic diagram of the weighing structure of this utility model;

[0022] Figure 7 The structure of this utility model Figure 6 Rear view illustration;

[0023] Figure 8 This is an exploded view of the weighing structure of this utility model.

[0024] In the diagram: 1. Frame; 2. Batching bin; 3. Adsorption plate; 4. Collection box; 5. Positioning plate; 6. Guide chute; 7. Base plate; 8. Conveyor belt; 9. Support frame; 10. Weighing hopper; 11. Hydraulic telescopic rod one; 12. Positioning rod; 13. Opening and closing plate; 14. Double-headed cylinder; 15. Bearing plate; 16. Limiting rod; 17. Stop block; 18. Baffle; 19. Electric telescopic rod two; 20. Hydraulic telescopic rod two; 21. Electromagnet two; 22. Weighing scale; 23. Electric telescopic rod one; 24. Pusher plate; 25. Electromagnet one; 26. Support plate; 27. Clamping column. Detailed Implementation

[0025] 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.

[0026] This utility model provides a batching machine for concrete production, including a frame 1, a batching bin 2 at the top of the frame 1, and a discharge port at the bottom of the batching bin 2. The discharge port of the batching bin 2 is sealed by an opening and closing structure 2. The opening and closing structure 2 includes an opening and closing plate 13 adapted to the bottom of the batching bin 2 and a hydraulic telescopic rod 11 connected to the opening and closing plate 13. The hydraulic telescopic rod 11 is connected to the batching bin 2. The extension and retraction of the hydraulic telescopic rod 11 can change the position of the opening and closing plate 13 connected to it, and the discharge port can be opened and closed automatically.

[0027] The bottom of the frame 1 is equipped with a weighing structure, which includes a base plate 7, a support frame 9, a weighing scale 22 and a weighing hopper 10.

[0028] The top of the base plate 7 is connected to a support frame 9 via a hydraulic telescopic rod 20. Electromagnets 21 are evenly fixed to the top of the support frame 9. The support frame 9 is located below the weighing hopper 10. Under the action of the hydraulic telescopic rod 20, the support frame 9 can contact the bottom of the weighing hopper 10. When the electromagnets 21 are energized, they are magnetically attracted to the bottom of the weighing hopper 10. The bottom of the weighing hopper 10 can be made of iron. The continued extension of the hydraulic telescopic rod 20 allows the support frame 9 to support the weighing hopper 10.

[0029] A weighing scale 22 is provided at the center of the top of the base plate 7. The weighing scale 22 is located inside the cavity of the support frame 9. A support plate 26 is fixedly connected to the top of the weighing scale 22. The support plate 26 is provided with a slot. The bottom of the weighing hopper 10 is provided with a locking post 27 that matches the slot. Using the locking post 27 and the slot, the bottom of the weighing hopper 10 can be engaged with the top of the weighing scale 22. When the bottom of the weighing hopper 10 is engaged with the top of the weighing scale 22, the weighing scale 22 can weigh the weighing hopper 10.

[0030] The weighing hopper 10 is located below the discharge port of the batching silo 2. When the discharge port of the batching silo 2 is open, the aggregate for concrete production stored in the batching silo 2 can fall into the inner cavity of the weighing hopper 10 under the action of gravity. The bottom of the inner cavity of the weighing hopper 10 is equipped with an isolation pad, which can be made of rubber. The isolation pad can reduce the impact force when the aggregate comes into contact with the weighing hopper 10. Furthermore, when using this batching machine, the opening and closing degree of the discharge port can be controlled according to the batching quantity. The material discharge time can be estimated based on the opening and closing degree of the discharge port, and the material discharge time can be divided into two parts: a pre-discharge time period and a post-discharge time period. The specific time period can be set according to the requirements and is not limited here. During the pre-discharge time period, the weighing hopper 10 is supported by the support frame 9 to avoid the impact of the raw material falling during the initial discharge process on the weighing scale 22. During the post-discharge time period, the weighing scale 22 supports the weighing hopper 10, which facilitates accurate weighing of the raw material. Since there is some raw material in the weighing hopper 10, the impact force of the raw material falling on the weighing scale 22 during the post-discharge time period is greatly reduced, which facilitates the use of the weighing scale 22.

[0031] A discharge port is provided on one side of the weighing hopper 10. The discharge port is sealed by an opening and closing structure. The opening and closing structure includes a baffle 18 adapted to the discharge port. The baffle 18 is connected to the weighing hopper 10 via an electric telescopic rod 19. The extension and retraction of the electric telescopic rod 19 can change the height of the baffle 18, thereby enabling the discharge port to open and close. A guide groove 6 is provided on the outside of the discharge port. When the discharge port is in the open state, the raw material in the weighing hopper 10 can move through the discharge port onto the guide groove 6 and slide down along the guide groove 6.

[0032] Both sides of the inner cavity of the feed chute 6 are fixedly connected with baffles 17. The baffles 17 and the weighing hopper 10 form a gap that is compatible with the baffles 18. The baffles 18 can be limited by the baffles 17 to improve the stability of the baffles 18.

[0033] The other end of the weighing hopper 10 is connected to a pusher plate 24 adapted to the discharge port via an electric telescopic rod 23, and a positioning rod 12 is fixedly connected to the other end of the weighing hopper 10. The positioning rod 12 is adapted to the pusher plate 24. The extension and retraction of the electric telescopic rod 23 can change the position of the pusher plate 24 connected to it, and the pusher plate 24 can push out the residual material in the weighing hopper 10.

[0034] A metal screening structure is provided between the weighing structure and the bottom of the batching hopper 2. This metal screening structure includes a double-headed cylinder 14 connected to the batching hopper 2 and adsorption plates 3. The two output shafts of the double-headed cylinder 14 are each connected to an adsorption plate 3. The discharge end of the batching hopper 2 is located between the two adsorption plates 3. The adsorption plates 3 are hollow, and electromagnets 25 are evenly arranged inside their cavities. When the electromagnets 25 are energized, they can adsorb ferromagnetic metal impurities such as reinforcing bars between the raw materials, thus screening the raw materials. An isolation pad is provided on the inner side of the adsorption plates 3 to reduce the impact force when metal impurities come into contact with the adsorption plates 3.

[0035] A collection box 4 is provided below the adsorption plate 3. When the double-headed cylinder 14 extends, it can drive the adsorption plate 3 to move. When the adsorption plate 3 moves above the collection box 4, the electromagnet 25 is de-energized. Under the action of gravity, the metal debris at the screening point can fall into the collection box 4. The inner wall of the collection box 4 is provided with an isolation pad.

[0036] Both sides of the frame 1 are provided with support plates adapted to the collection box 4. The support plate includes a bearing plate 15, a limiting rod 16 connected to the top of the bearing plate 15, and a positioning plate 5 connected to the bearing plate 15. The positioning plate 5 and the limiting rod 16 form a U-shaped structure adapted to the collection box 4. The support plate can support and limit the collection box 4, making it convenient to use the collection box 4.

[0037] A conveyor belt 8 is provided below the weighing structure. Raw materials can fall onto the conveyor belt 8 along the guide chute 6. The conveyor belt 8 transports the raw materials so that a certain amount of raw materials can be transported into the concrete mixer, which facilitates the production of concrete. The conveyor belt 8 is prior art. In some embodiments of this application, the conveyor belt 8 is disclosed in the authorized patent document with application number CN202221792715.1.

[0038] As described above, when the batching machine is in use, it utilizes the support frame 9 and the symmetrical weighing hopper 10 for support, reducing the impact force on the symmetrical weighing scale 22 of the raw materials and extending the service life of the weighing scale 22. Furthermore, during the falling process of the raw materials, the adsorption plate 3 can adsorb ferromagnetic metal impurities between the raw materials, preventing these metal impurities from damaging the conveyor belt 8 or the weighing hopper 10.

[0039] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0040] In summary: When this concrete production batching machine is in use, the aggregates for concrete production are stored in the batching bin 2. When it is necessary to weigh the aggregates in the batching bin 2, the hydraulic telescopic rod 20 drives the support frame 9 to move upward. After the support frame 9 contacts the bottom of the weighing hopper 10, the electromagnet 21 is energized. The electromagnet 21 and the weighing hopper 10 are in a magnetic attraction state. The hydraulic telescopic rod 20 continues to extend, driving the weighing hopper 10 to move upward until the weighing hopper 10 separates from the pallet 26. The electromagnet 25 is energized, and the hydraulic telescopic rod 11 drives the opening and closing plate 13 to move, so that the discharge port of the batching bin 2 is in an open state. The opening and closing degree of the discharge port can be controlled according to the amount of material to be batched. The aggregates in the batching bin 2 fall into the weighing hopper 10 under the action of gravity. During the falling process, metal impurities with ferromagnetic properties, such as steel bars, are attracted to the adsorption plate 3, realizing the screening of metal impurities.

[0041] During the initial feeding period, the weighing hopper 10 is supported by the support frame 9 to prevent the impact force of the falling raw materials on the weighing scale 22 from causing damage. During the subsequent feeding period, the hydraulic telescopic rod 20 retracts, causing the weighing hopper 10 to move downwards. After the weighing hopper 10 returns to its original position, the electromagnet 21 is de-energized, and the hydraulic telescopic rod 20 continues to move downwards until the support frame 9 returns to its original position. At this point, the support frame 9 separates from the weighing hopper 10, and the weighing scale 22 supports the weighing hopper 10, facilitating accurate weighing of the aggregate. Furthermore, since some raw material remains in the weighing hopper 10, the material falling during the subsequent feeding period is also weighed... The impact force of the scale 22 is greatly reduced, making it easier to use. After weighing, the discharge port of the batching bin 2 is sealed by the opening and closing plate 13. The electric telescopic rod 19 drives the baffle 18 to move upward, opening the discharge port. The weighed fixed material can fall onto the conveyor belt 8 through the discharge port and the guide chute 6. The conveyor belt 8 transports the quantitative aggregate. After weighing, the double-headed cylinder 14 drives the adsorption plate 3 to move. After the adsorption plate 3 moves above the collection box 4, the electromagnet 25 is de-energized. The screened metal impurities fall into the collection box 4 under gravity. The double-headed cylinder 14 drives the adsorption plate 3 to move in the opposite direction until the adsorption plate 3 is reset, making it easy to reuse the batching machine.

[0042] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional means such as bolts that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A batching machine for concrete production, comprising a frame (1), characterized in that: The top of the frame (1) is provided with a batching bin (2), the bottom of the frame (1) is provided with a weighing structure, a metal screening structure is provided between the weighing structure and the bottom of the batching bin (2), and a conveyor belt (8) is provided below the weighing structure. The metal screening structure includes a double-headed cylinder (14) connected to the mixing bin (2), an adsorption plate (3), and a collection box (4) located below the adsorption plate (3). The two output shafts of the double-headed cylinder (14) are connected to the adsorption plate (3). The discharge end of the mixing bin (2) is located between the two adsorption plates (3). Electromagnets (25) are uniformly arranged in the inner cavity of the adsorption plate (3). The weighing structure includes a base plate (7) connected to the frame (1), a support frame (9) connected to the top of the base plate (7) via a hydraulic telescopic rod (20), a weighing scale (22) connected to the middle of the top of the base plate (7), and a weighing hopper (10) snapped onto the top of the weighing scale (22). The weighing scale (22) is located inside the cavity of the support frame (9). An electromagnet (21) is fixedly connected to the top of the support frame (9). When the electromagnet (21) is energized, it magnetically attracts the bottom of the weighing hopper (10). A discharge port is provided on one side of the weighing hopper (10), and a guide groove (6) is provided on the outside of the discharge port. The discharge port is sealed by an opening and closing structure. The other end of the weighing hopper (10) is connected to a pusher plate (24) adapted to the discharge port via an electric telescopic rod (23).

2. The batching machine for concrete production according to claim 1, characterized in that: The bottom of the batching silo (2) is provided with a discharge port, which is sealed by an opening and closing structure II. The opening and closing structure II includes an opening and closing plate (13) adapted to the bottom of the batching silo (2) and a hydraulic telescopic rod (11) connected to the opening and closing plate (13). The hydraulic telescopic rod (11) is connected to the batching silo (2).

3. A batching machine for concrete production according to claim 1, characterized in that: The frame (1) is provided with support plates on both sides that are adapted to the collection box (4). The support plate includes a bearing plate (15), a limiting rod (16) connected to the top of the bearing plate (15), and a positioning plate (5) connected to the bearing plate (15). The positioning plate (5) and the limiting rod (16) form a U-shaped structure adapted to the collection box (4).

4. A batching machine for concrete production according to claim 1, characterized in that: The opening and closing structure includes a baffle (18) adapted to the discharge port. The baffle (18) is connected to the weighing hopper (10) via an electric telescopic rod (19). Both sides of the inner cavity of the guide trough (6) are fixedly connected with baffles (17). A gap is formed between the baffles (17) and the weighing hopper (10) that is adapted to the baffle (18).

5. A batching machine for concrete production according to claim 1, characterized in that: The bottom of the weighing hopper (10) and the inner side of the adsorption plate (3) are provided with isolation pads. The other end of the weighing hopper (10) is fixedly connected to a positioning rod (12), which is adapted to the pusher plate (24).

6. A batching machine for concrete production according to claim 1, characterized in that: The top of the weighing scale (22) is fixedly connected to a support plate (26), the support plate (26) is provided with a slot, and the bottom of the weighing hopper (10) is provided with a locking post (27) that matches the slot.

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