Concrete mixing device

Abstract

The utility model relates to the technical field of concrete mixing, and discloses a concrete mixing device which comprises a mixing box, a support frame is welded on the outer side of the mixing box, hydraulic cylinders are fixedly mounted on two sides of the support frame, a lifting frame is mounted at the output end of each hydraulic cylinder, and a servo motor is fixedly mounted in the middle of the upper end of each lifting frame. According to the technical scheme, the hydraulic cylinder can drive the lifting frame to move up and down, and the lifting frame drives the servo motor to move along with the lifting frame, so that the stirring rod moves up and down in the stirring box for stirring, the phenomenon that materials form laminar flow in the stirring box due to single-direction rotation of the stirring rod is avoided, and the mixing effect of the materials is improved; and the concrete materials can be intermittently supplied in the up-down reciprocating motion process of the stirring rod, so that the concrete material accumulation condition is avoided, and the concrete material mixing effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete mixing technology, specifically a concrete mixing device. Background Technology

[0002] Concrete typically refers to cement concrete, which is made by mixing cement as a binder, sand and stone as aggregates, and water in a certain proportion. It is widely used in the field of civil engineering. In order to successfully complete the mixing of cement, sand, water and other substances, appropriate concrete mixing equipment is used.

[0003] A search revealed a concrete mixing device with publication number (CN219968379U), comprising a mixing tank, with support legs connected to all four sides of the bottom of the mixing tank, a mixing chamber inside the mixing tank, and a feed inlet connected to the top of one side of the mixing tank and the mixing chamber. A drive rod is rotatably connected between the top and bottom of the mixing chamber, and several mixing blades are evenly connected to both sides of the drive rod. A mixing rod is rotatably connected to both sides of the top of the mixing chamber near the side wall of the mixing chamber, and several mixing blades are evenly connected to the mixing rod facing the mixing blades. The mixing blades are staggered. A discharge port is provided on both sides of the bottom of the mixing chamber, connecting to the outside.

[0004] The technical solution has at least the following drawbacks: although the invention can mix concrete materials, the blades typically rotate in one direction, causing laminar flow of the materials within the mixing drum, resulting in uneven mixing between the upper and lower layers. Therefore, improvements are urgently needed. Thus, we propose a concrete mixing device. Utility Model Content

[0005] The purpose of this utility model is to provide a concrete mixing device that solves the problem mentioned in the background art, where the blades usually rotate in one direction, causing the material to easily form a laminar flow phenomenon in the mixing drum, resulting in uneven mixing of the upper and lower layers of material.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a concrete mixing device, including a mixing tank, a support frame welded to the outside of the mixing tank, hydraulic cylinders fixedly installed on both sides of the support frame, a lifting frame installed at the output end of the hydraulic cylinders, a servo motor fixedly installed at the upper middle part of the lifting frame, a mixing rod installed at the output end of the servo motor, strip grooves opened on both sides of the support frame, a discharge channel fixedly installed at the upper end of the mixing tank, a through groove opened in the middle of the discharge channel, a sealing strip rotatably installed at the upper end of the mixing rod, and sliding grooves opened on both the front and rear sides of the inner cavity of the discharge channel, with the sealing strip slidably connected to the sliding grooves.

[0007] By adopting the above technical solution, the hydraulic cylinder can drive the lifting frame to move up and down, and the lifting frame can drive the servo motor to follow the movement. This causes the stirring rod to move up and down in the mixing tank, avoiding the laminar flow phenomenon caused by the unidirectional rotation of the stirring rod, thus improving the mixing effect. Furthermore, during the up-and-down movement of the servo motor, the stirring rod on the servo motor will drive the sealing strip to move accordingly. When the sealing strip moves upward and separates from the through groove, the material in the discharge channel will be discharged into the mixing tank from the through groove. When the sealing strip moves downward and separates from the through groove, the material in the discharge channel will be discharged into the mixing tank again. This achieves intermittent supply of concrete material during the reciprocating motion of the stirring rod, avoiding the accumulation of concrete material and thus improving the mixing effect of the concrete material.

[0008] Optionally, the size of the sealing strip is adapted to the size of the through groove, and the sealing strip is movably connected to the through groove.

[0009] By adopting the above technical solution, the through groove can be opened intermittently by using the sealing strip in conjunction with the through groove.

[0010] Optionally, ramps are fixedly installed on both sides of the lower end of the mixing tank, and the ramps are arranged symmetrically.

[0011] By adopting the above technical solution and setting up a ramp, the mixed concrete material can be easily guided and collected at the discharge valve.

[0012] Optionally, the size of the lifting frame is adapted to the size of the strip groove, and the lifting frame is movably connected to the strip groove.

[0013] By adopting the above technical solution and setting the strip groove, the stability of the lifting frame movement can be guaranteed.

[0014] Optionally, the stirring rod is located in the middle of the inner cavity of the mixing tank, and the length of the stirring rod is less than the height of the mixing tank.

[0015] By adopting the above technical solution, it is convenient to move the stirring rod up and down, and the stirring rod is prevented from touching the bottom.

[0016] Optionally, the lower end of the mixing tank is connected to a discharge valve.

[0017] By adopting the above technical solution, it is convenient to discharge the mixed concrete material through the discharge valve.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0019] This technical solution, through the design of a mixing tank, support frame, hydraulic cylinder, lifting frame, servo motor, discharge channel, sealing strip, and ramp, allows the hydraulic cylinder to drive the lifting frame to move up and down, which in turn drives the servo motor to follow. This, in turn, causes the mixing rod to move up and down within the mixing tank, preventing laminar flow of materials caused by unidirectional rotation of the mixing rod, thus improving the mixing effect. Furthermore, during the up-and-down movement of the servo motor, the mixing rod on the servo motor drives the sealing strip to move as well. When the sealing strip moves upward and separates from the channel, the material in the discharge channel is discharged into the mixing tank. When the sealing strip moves downward and separates from the channel, the material in the discharge channel is discharged into the mixing tank again. This intermittent supply of concrete material during the reciprocating motion of the mixing rod prevents concrete material accumulation and further improves the mixing effect. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a concrete mixing device according to the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the material feeding channel and sealing strip of a concrete mixing device according to the present invention;

[0023] Figure 3 This is a partially enlarged structural diagram of section A of a concrete mixing device according to this utility model.

[0024] In the diagram: 1. Mixing tank; 11. Support frame; 12. Discharge valve; 2. Hydraulic cylinder; 21. Lifting frame; 22. Servo motor; 23. Mixing rod; 24. Strip trough; 3. Discharge channel; 4. Sealing strip; 5. Through groove; 6. Slide chute; 7. Ramp. Detailed Implementation

[0025] Please see Figure 1-3This utility model provides a technical solution: a concrete mixing device, including a mixing tank 1, a support frame 11 welded to the outside of the mixing tank 1, hydraulic cylinders 2 fixedly installed on both sides of the support frame 11, a lifting frame 21 installed at the output end of the hydraulic cylinders 2, a servo motor 22 fixedly installed at the upper middle of the lifting frame 21, a mixing rod 23 installed at the output end of the servo motor 22, strip grooves 24 opened on both sides of the support frame 11, a discharge channel 3 fixedly installed at the upper end of the mixing tank 1, a through groove 5 opened in the middle of the discharge channel 3, a sealing strip 4 rotatably installed at the upper end of the mixing rod 23, and the front of the inner cavity of the discharge channel 3... Both sides of the rear are provided with sliding grooves 6, and the sealing strip 4 is slidably connected to the sliding grooves 6. The size of the lifting frame 21 is adapted to the size of the strip groove 24, and the lifting frame 21 is movably connected to the strip groove 24. The setting of the strip groove 24 can ensure the stability of the movement of the lifting frame 21. The stirring rod 23 is set in the middle of the inner cavity of the mixing box 1, and the length of the stirring rod 23 is less than the height of the mixing box 1, which facilitates the up and down movement of the stirring rod 23 and avoids the stirring rod 23 from touching the bottom. The lower end of the mixing box 1 is connected to the discharge valve 12, which facilitates the discharge of the mixed concrete material through the discharge valve 12.

[0026] The size of the sealing strip 4 is adapted to the size of the through groove 5, and the sealing strip 4 is movably connected to the through groove 5. Through the cooperation of the sealing strip 4 and the through groove 5, the through groove 5 can be opened intermittently.

[0027] Both sides of the lower end of the mixing tank 1 are fixedly installed with ramps 7, and the ramps 7 are symmetrically arranged. The ramps 7 facilitate the guidance and collection of the mixed concrete material to the discharge valve 12.

[0028] During mixing, concrete material is first discharged into mixing tank 1. Then, servo motor 22 is turned on, driving mixing rod 23 to rotate. Hydraulic cylinder 2 is then turned on, driving lifting frame 21 to move up and down. Lifting frame 21 drives servo motor 22 to follow, thus causing mixing rod 23 to move up and down within mixing tank 1. This avoids laminar flow of material within mixing tank 1 caused by unidirectional rotation of mixing rod 23, thereby improving the mixing effect. Simultaneously, during the up-and-down movement of servo motor 22, mixing rod 23 on servo motor 22 drives sealing strip 4 to move accordingly. When sealing strip 4 moves upward and separates from through groove 5, material in discharge channel 3 is discharged into mixing tank 1 from through groove 5. When sealing strip 4 moves downward and separates from through groove 5, material in discharge channel 3 is discharged into mixing tank 1 again. This achieves intermittent supply of concrete material during the up-and-down reciprocating motion of mixing rod 23, avoiding concrete material accumulation and improving the mixing effect of concrete material.

Claims

1. A concrete mixing plant comprising a mixing box (1), characterized in that: A support frame (11) is welded to the outside of the mixing tank (1). Hydraulic cylinders (2) are fixedly installed on both sides of the support frame (11). A lifting frame (21) is installed at the output end of the hydraulic cylinder (2). A servo motor (22) is fixedly installed in the middle of the upper end of the lifting frame (21). A stirring rod (23) is installed at the output end of the servo motor (22). A strip groove (24) is opened on both sides of the support frame (11). A feeding channel (3) is fixedly installed at the upper end of the mixing tank (1). A through groove (5) is opened in the middle of the feeding channel (3). A sealing strip (4) is rotatably installed at the upper end of the stirring rod (23). Sliding grooves (6) are opened on both the front and rear sides of the inner cavity of the feeding channel (3). The sealing strip (4) is slidably connected to the sliding groove (6).

2. The concrete mixing device according to claim 1, characterized in that: The size of the sealing strip (4) is adapted to the size of the through groove (5), and the sealing strip (4) is movably connected to the through groove (5).

3. A concrete mixing plant according to claim 1, characterized in that: Both sides of the lower end of the mixing tank (1) are fixedly installed with ramps (7), and the ramps (7) are symmetrically arranged.

4. A concrete mixing plant according to claim 1, characterized in that: The dimensions of the lifting frame (21) are adapted to the dimensions of the strip groove (24), and the lifting frame (21) and the strip groove (24) are movably connected.

5. A concrete mixing apparatus as defined in claim 1, wherein: The stirring rod (23) is located in the middle of the inner cavity of the mixing tank (1), and the length of the stirring rod (23) is less than the height of the mixing tank (1).

6. A concrete mixing plant according to claim 1, characterized in that: The lower end of the mixing tank (1) is connected to a discharge valve (12).

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