A concrete production plant

Abstract

The application provides a concrete production device, which comprises a mixing drum, a support is fixedly arranged at the bottom of the mixing drum, a discharge pipe for discharging and communicating with the mixing drum is fixedly arranged on the surface of the support, two groups of connecting rods are fixedly arranged on the surface of the support, a fixed plate is fixedly arranged between the two groups of connecting rods, a connecting seat is integrally formed on the surface of the fixed plate, and a mixing motor is fixedly arranged at the top of the connecting seat. The mixing assembly for bidirectional mixing of raw materials is arranged between the threaded rod and the mixing drum. Since the first stirring rod and the second stirring rod are both arranged to be inclined, the raw materials can be stirred from two different directions under the driving of one group of stirring motors through the arrangement of the first stirring rod and the second stirring rod, so that the raw materials can be more uniformly mixed, and the number of motors used can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete processing, in particular to a concrete production device. BACKGROUND

[0002] Concrete is referred to as "concrete": it is an engineering composite material that is glued together by cementitious materials. The commonly used term "concrete" refers to cementitious materials, sand, and stone as aggregates; with water (may contain additives and admixtures) in a certain proportion, after stirring, it is called cement concrete, also known as ordinary concrete. It is widely used in civil engineering. Concrete has the characteristics of abundant raw materials, low price, and simple production process, so its use is increasing.

[0003] The prior art discloses a concrete mixing device (publication number: CN112078012B), which belongs to the technical field of concrete mixing and comprises a mixing barrel, a fixed seat and a connecting barrel. A second connecting cavity is vertically provided at the center of the fixed seat, and three storage cavities are equidistantly provided inside the fixed seat outside the second connecting cavity with the second connecting cavity as the center. The upper and lower ends of the second connecting cavity are provided with a connecting barrel through a bearing. The device can be used to mix concrete components in proportion, has high mixing efficiency and good mixing uniformity.

[0004] However, the above technical solution and the prior art have the following defects:

[0005] When the raw materials of the concrete are stirred by the stirring equipment, the raw materials can only be stirred in a single direction, and there is no pre-mixing function for the powder during stirring, which leads to a long time required for the overall uniform mixing of the raw materials during stirring. However, the prior art usually sets two or more groups of motors with different rotating directions to realize multi-directional stirring, but this method requires more motors, which needs to add motors at various positions, thereby increasing the cost. SUMMARY

[0006] The purpose of the present application is to provide a concrete production device to solve the problems in the background art.

[0007] To achieve the above purpose, the present application provides the following technical scheme:

[0008] The utility model provides a concrete production device, including the stirring drum, the bottom of stirring drum is fixedly arranged with the support, the surface of support is fixedly arranged with the discharge pipe for discharging and being connected with stirring drum, the surface of support is fixedly arranged with two groups of connecting rods, two groups of connecting rods are fixedly arranged with fixed plate between, the surface of fixed plate is integrally formed with the connecting seat, the top of connecting seat is fixedly arranged with the stirring motor, the output of stirring motor penetrates connecting seat and is fixedly connected with threaded rod, be provided with the mixing assembly for two -way stirring of raw materials between threaded rod and stirring drum,

[0009] The top of the stirring drum is fixedly provided with a pre-mixing box through a support rod. The bottom of the pre-mixing box is provided with a discharge port for adding powder into the stirring drum. The inside of the pre-mixing box is provided with a pre-mixing assembly for pre-mixing the powder. The threaded rod and the pre-mixing box are provided with a discharging assembly for quantitatively discharging the powder.

[0010] Preferably, the mixing assembly comprises a traction ring. The top of the stirring drum is fixedly provided with a claw for limiting the traction ring. The traction ring is movably arranged in the cavity formed by the claw and the stirring drum. The outer wall of the traction ring is provided with a clamping tooth. The surface of the threaded rod is fixedly provided with a driving gear meshing with the clamping tooth. The surface of the traction ring is fixedly provided with a first stirring rod for clockwise stirring of the raw materials.

[0011] The stirring motor drives the driving gear to rotate through the threaded rod. The driving gear drives the traction ring to rotate through the clamping tooth. In turn, the traction ring drives the first stirring rod to rotate to stir the raw materials.

[0012] The mixing assembly further comprises a driving shaft. The driving shaft penetrates the stirring drum and is rotatably arranged on the surface of the support. The support and the threaded rod are in transmission through a traction gear and a chain. The surface of the driving shaft is fixedly provided with a second stirring rod for counterclockwise stirring of the raw materials.

[0013] The stirring motor drives the threaded rod to rotate. The threaded rod drives the driving shaft to rotate through the traction gear and the chain. In turn, the driving shaft drives the second stirring rod to rotate to stir the raw materials.

[0014] Preferably, the pre-mixing assembly comprises a connecting shaft. The top of the driving shaft is fixedly provided with a connecting shaft penetrating the discharge port and extending into the inside of the pre-mixing box. The surface of the connecting shaft is fixedly provided with a pre-mixing rod.

[0015] When the stirring motor drives the driving shaft to rotate, the connecting shaft synchronously rotates. At this time, the connecting shaft can drive the pre-mixing rod to synchronously rotate in the pre-mixing box, so that the pre-mixing rod pre-mixes the powder in the inside of the pre-mixing box.

[0016] Preferably, the unloading assembly comprises a traction seat, the traction seat is threadedly connected to the surface of the threaded rod, and the two ends of the traction seat are movably arranged on the surface of the connecting rod, the surface of the traction seat is fixedly provided with two groups of supporting arms through two groups of connecting arms, a traction arm is fixedly arranged at one end of the traction arm through a vertical rod, the bottom of the plug is clamped in the inside of the discharge port, and the plug is movably arranged on the surface of the connecting shaft;

[0017] The stirring motor drives the traction seat to move linearly on the surface of the threaded rod, the traction seat drives the traction arm to move synchronously through the connecting arm and the supporting arm when moving, the traction arm drives the plug to move synchronously on the surface of the connecting shaft in the pre-stirring box when moving, and the powder in the pre-stirring box leaks into the stirring drum through the gap between the plug and the discharge port.

[0018] Preferably, the first stirring rod and the second stirring rod are both arranged obliquely, and the oblique directions of the first stirring rod and the second stirring rod are the same.

[0019] Preferably, the inner wall of the discharge port and the surface of the plug are both arranged in a conical structure.

[0020] Preferably, the surface of the traction seat is fixedly provided with a reinforcing rod for increasing the overall strength, and a triangular structure is formed between the reinforcing rod and the traction seat.

[0021] Preferably, the cross section of the claw is arranged in an L-shaped structure, the inner wall of the claw is attached to the outer wall of the traction ring, the inner wall of the claw is attached to the outer wall of the traction ring, and the inner wall of the claw is attached to the outer wall of the traction ring.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] 1. The mixing assembly for bidirectional stirring of raw materials is arranged between the threaded rod and the stirring drum, the first stirring rod and the second stirring rod are both arranged obliquely, the raw materials can be stirred from two different directions under the driving of one group of stirring motors through the arrangement of the first stirring rod and the second stirring rod, the raw materials are more uniformly mixed, and the number of motors used can be reduced;

[0024] 2. The pre-stirring box for pre-stirring of powder is arranged above the stirring drum, and the pre-stirring assembly for pre-stirring of powder is arranged in the pre-stirring box, the powder used in the concrete production process can be mixed through the arrangement of the pre-stirring assembly, the overall mixing effect can be improved through the separate mixing of raw materials and powder, and the raw materials are more uniform when stirred.

[0025] 3、The present application is provided between the threaded rod and the pre-mixing box for the quantitative discharge of powder material unloading assembly, through the setting of unloading assembly can be discharged to the powder into the mixing drum, and by controlling the stirring motor forward and reverse way can make the traction seat in the surface of the threaded rod reciprocating linearly, and then make the discharge port can be periodically opened, so as to realize the quantitative feeding of powder, prevent a large number of powder into the mixing drum resulting in uneven mixing of raw materials, and can facilitate the control of the amount of powder;

[0026] The present application is provided between the threaded rod and the pre-mixing box for the quantitative discharge of powder material unloading assembly, through the setting of unloading assembly can be discharged to the powder into the mixing drum, and by controlling the stirring motor forward and reverse way can make the traction seat in the surface of the threaded rod reciprocating linearly, and then make the discharge port can be periodically opened, so as to realize the quantitative feeding of powder, prevent a large number of powder into the mixing drum resulting in uneven mixing of raw materials, and can facilitate the control of the amount of powder; BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The main structure of the present application is shown in the schematic diagram;

[0028] Figure 2 The back structure of the present application is shown in the schematic diagram;

[0029] Figure 3 The top structure of the present application is shown in the schematic diagram;

[0030] Figure 4 The side structure of the present application is shown in the schematic diagram;

[0031] Figure 5 The main structure of the present application is shown in the schematic diagram;

[0032] Figure 6 The main structure of the present application is shown in the schematic diagram;

[0033] Figure 7 The connection structure of the threaded rod and the driving shaft of the present application is shown in the schematic diagram;

[0034] Figure 8 The cross-sectional structure of the present application is shown in the schematic diagram.

[0035] In the figure: 1, stirring drum; 2, support; 3, discharge pipe; 4, connecting rod; 5, fixed plate; 6, connecting seat; 7, stirring motor; 8, threaded rod; 9, support rod; 10, pre-stirring box; 11, discharge port; 12, traction ring; 13, claw; 14, cavity; 15, pawl; 16, drive gear; 17, first stirring rod; 18, drive shaft; 19, traction gear; 20, chain; 21, second stirring rod; 22, connecting shaft; 23, pre-stirring rod; 24, traction seat; 25, connecting arm; 26, support arm; 27, traction arm; 28, vertical rod; 29, plug; 30, reinforcing rod; 31, flange. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] Please refer to Figures 1-8 The present application provides a technical solution:

[0038] Embodiment one:

[0039] A concrete production device, comprising a stirring drum 1, a support 2 is fixedly arranged at the bottom of the stirring drum 1, and a discharge pipe 3 for discharging and communicating with the stirring drum 1 is fixedly arranged on the surface of the support 2;

[0040] Two groups of connecting rods 4 are fixedly arranged on the surface of the support 2, a fixed plate 5 is fixedly arranged between the two groups of connecting rods 4, a connecting seat 6 is integrally formed on the surface of the fixed plate 5, a stirring motor 7 is fixedly arranged on the top of the connecting seat 6, a threaded rod 8 is fixedly connected to the output end of the stirring motor 7 and penetrates through the connecting seat 6, a mixing assembly for bidirectional stirring of raw materials is arranged between the threaded rod 8 and the stirring drum 1, the stirring motor 7 can drive the drive gear 16 through the threaded rod 8 when the stirring motor 7 works, the drive gear 16 drives the traction ring 12 to rotate through the pawl 15, and then the traction ring 12 drives the first stirring rod 17 to rotate to stir the raw materials, and the discharged raw materials can be discharged through the discharge pipe 3 after the stirring of the raw materials is completed;

[0041] The top of the stirring barrel 1 is fixedly provided with a pre-stirring box 10 through a supporting rod 9, and the bottom of the pre-stirring box 10 is provided with a discharge port 11 for adding powder into the stirring barrel 1. After various powders are added into the pre-stirring box 10, the powders can be pre-stirred under the driving of a pre-stirring rod 23, so that the powders are in a mixed state when entering the stirring barrel 1 through the discharge port 11. At this time, the stirring time of the raw materials and the powders in the stirring barrel 1 can be greatly reduced, and the raw materials can be stirred better;

[0042] The mixing assembly comprises a traction ring 12, the top of the stirring barrel 1 is fixedly provided with a claw 13 for limiting the traction ring 12, the traction ring 12 is movably arranged in a cavity 14 formed by the claw 13 and the stirring barrel 1, the outer wall of the traction ring 12 is provided with a clamping tooth 15, the surface of the threaded rod 8 is fixedly provided with a driving gear 16 engaged with the clamping tooth 15, and the surface of the traction ring 12 is fixedly provided with a first stirring rod 17 for stirring the raw materials clockwise. The stirring motor 7 drives the driving gear 16 to rotate through the threaded rod 8, the driving gear 16 drives the traction ring 12 to rotate through the clamping tooth 15, and then the traction ring 12 drives the first stirring rod 17 to rotate to stir the raw materials;

[0043] The mixing assembly further comprises a driving shaft 18, the driving shaft 18 penetrates the stirring barrel 1 and is rotatably arranged on the surface of the support 2, the support 2 and the threaded rod 8 are in transmission through a traction gear 19 and a chain 20, and the surface of the driving shaft 18 is fixedly provided with a second stirring rod 21 for stirring the raw materials counterclockwise. The stirring motor 7 drives the threaded rod 8 to rotate, the threaded rod 8 drives the driving shaft 18 to rotate through the traction gear 19 and the chain 20, and then the driving shaft 18 drives the second stirring rod 21 to rotate to stir the raw materials. At this time, the rotating directions of the first stirring rod 17 and the second stirring rod 21 are different, the first stirring rod 17 and the second stirring rod 21 are both obliquely arranged, and the oblique directions of the first stirring rod 17 and the second stirring rod 21 are the same. After the first stirring rod 17 and the second stirring rod 21 are obliquely arranged, the first stirring rod 17 can rotate in the opposite direction of the stirring motor 7 when it acts, and the second stirring rod 21 can rotate in the same direction of the stirring motor 7 when it acts. When the raw materials near the first stirring rod 17 and the second stirring rod 21 are stirred respectively, the raw materials can move in opposite directions between the first stirring rod 17 and the second stirring rod 21. When the raw materials are stirred, they can be stirred at different angles, so that the raw materials can be mixed more uniformly;

[0044] The cross section of the clamping jaw 13 is provided in an L-shaped structure, and the inner wall of the clamping jaw 13 is attached to the outer wall of the traction ring 12. The inner wall of the stirring drum 1 is integrally formed with a retaining edge 31. The top of the retaining edge 31 abuts against the bottom of the traction ring 12. The retaining edge 31 is arranged to support the traction ring 12. The traction ring 12 can rotate in the cavity 14 between the clamping jaw 13, the retaining edge 31 and the stirring drum 1 under the driving of the driving gear 16, thereby achieving the driving of the first stirring rod 17. Since the traction ring 12 and the driving gear 16 are both exposed, the driving gear 16 and the clamping teeth 15 can be easily cleaned of foreign matter during transmission, thereby preventing the phenomenon of jamming.

[0045] Embodiment two:

[0046] In embodiment one, the concrete raw materials inside the stirring drum 1 are bidirectionally stirred by arranging the mixing assembly. However, powder needs to be added to the raw materials during concrete production. Therefore, a pre-stirring assembly for pre-stirring the powder is arranged inside the pre-stirring box 10 in this embodiment. A discharging assembly for quantitatively discharging the powder is arranged between the threaded rod 8 and the pre-stirring box 10. The pre-stirring assembly includes a connecting shaft 22. The top of the driving shaft 18 is fixedly provided with the connecting shaft 22 which penetrates through the discharge port 11 and extends into the inside of the pre-stirring box 10. The surface of the connecting shaft 22 is fixedly provided with a pre-stirring rod 23. The inner wall of the discharge port 11 and the surface of the plug 29 are both provided in a conical structure. When the driving shaft 18 rotates, the pre-stirring rod 23 can be synchronously rotated in the inside of the pre-stirring box 10 through the connecting shaft 22, thereby pre-stirring the powder inside the pre-stirring box 10, so that the powder is preliminarily mixed before entering the stirring drum 1, thereby improving the mixing effect of the concrete. The conical discharge port 11 facilitates discharging. The powder can be discharged under the action of gravity in the discharge port 11. The plug 29 is also provided in a conical shape to match the discharge port 11, thereby maximizing the contact area between the plug 29 and the discharge port 11, increasing the sealing property between the plug 29 and the discharge port 11, and preventing the powder from leaking;

[0047] The discharging assembly comprises a traction seat 24 which is threadedly connected to the surface of the threaded rod 8, and the two ends of the traction seat 24 are movably arranged on the surface of the connecting rod 4, the surface of the traction seat 24 is fixedly provided with two groups of supporting arms 26 through two groups of connecting arms 25, the two groups of supporting arms 26 are fixedly provided with a traction arm 27, one end of the traction arm 27 is fixedly provided with a plug 29 through a vertical rod 28, the bottom of the plug 29 is clamped in the inside of the discharge port 11, and the plug 29 is movably arranged on the surface of the connecting shaft 22, the surface of the traction seat 24 is fixedly provided with a reinforcing rod 30 for increasing the overall strength, and a triangular structure is formed between the reinforcing rod 30 and the traction seat 24, the threaded rod 8 can make the traction seat 24 move linearly on the surface of the threaded rod 8 when rotating, the traction seat 24 can drive the traction arm 27 to move synchronously through the connecting arms 25 and the supporting arms 26 when moving, the traction arm 27 can drive the plug 29 to move synchronously on the surface of the connecting shaft 22 in the inside of the pre-mixing box 10 when moving, at this time, the powder in the inside of the pre-mixing box 10 can leak into the stirring drum 1 through the gap between the plug 29 and the discharge port 11, so as to realize the addition of the powder, it can be known that the stirring motor 7 can be periodically switched in forward and reverse directions, so that the plug 29 can move linearly in the discharge port 11 periodically, so as to realize the quantitative discharging of the powder, and in the process of moving downward of the plug 29, when the plug 29 is about to contact the discharge port 11, the gap between the plug 29 and the discharge port 11 can grind a certain amount of powder, so that the powder can be further refined, the contact area between the powder and the raw materials is increased, and the mixing effect is increased.

[0048] Working principle: the concrete raw materials are fed into the stirring drum 1, the powder is fed into the pre-mixing box 10, and then the stirring motor 7 is started, the stirring motor 7 can drive the threaded rod 8 to rotate, the threaded rod 8 can drive the driving gear 16 to rotate synchronously when rotating, the driving gear 16 can drive the traction ring 12 to rotate through the clamping teeth 15 when rotating, the traction ring 12 can drive the first stirring rod 17 to rotate synchronously when rotating, so as to stir the raw materials in the inside of the stirring drum 1, when the stirring motor 7 rotates clockwise, the stirring motor 7 can drive the traction ring 12 to rotate counterclockwise through the driving gear 16;

[0049] The threaded rod 8 can drive the driving shaft 18 to rotate synchronously through the traction gear 19 and the chain 20 when rotating, the driving shaft 18 can drive the second stirring rod 21 to rotate synchronously in the inside of the stirring drum 1 when rotating, the second stirring rod 21 can also rotate clockwise through the transmission of the traction gear 19 and the chain 20 when the stirring motor 7 rotates clockwise, so that the first stirring rod 17 and the second stirring rod 21 can rotate in different directions, so as to realize the bidirectional stirring of the raw materials;

[0050] When the driving shaft 18 rotates, the connecting shaft 22 can rotate synchronously in the interior of the pre-stirring box 10, and then the connecting shaft 22 drives the pre-stirring rod 23 to rotate synchronously in the interior of the pre-stirring box 10, so that the powder in the pre-stirring box 10 is stirred and uniformly mixed. Since the stirring motor 7 drives the threaded rod 8, the threaded rod 8 can drive the traction seat 24 to move linearly on the surface of the threaded rod 8. At this time, the stirring motor 7 is controlled to reverse, so that the traction seat 24 moves linearly and reciprocally on the surface of the threaded rod 8. When the traction seat 24 moves, the traction arm 27 moves synchronously through the connecting arm 25 and the supporting arm 26. When the traction arm 27 moves, the plug 29 moves synchronously on the surface of the connecting shaft 22 in the pre-stirring box 10. At this time, the powder in the pre-stirring box 10 leaks into the stirring drum 1 through the gap between the plug 29 and the discharge port 11. By controlling the switching frequency of the stirring motor 7, the plug 29 can move periodically in the discharge port 11, so that the powder is quantitatively discharged.

[0051] The first stirring rod 17 and the second stirring rod 21 are driven by the stirring motor 7, so that the raw materials can be stirred and mixed from different directions and angles in the stirring drum 1. When stirring, the powder in the pre-stirring box 10 can be pre-stirred by the pre-stirring rod 23, so that the powder can be mixed before entering the stirring drum 1, thereby reducing the time required for mixing with the raw materials. Since the powder is mixed in the pre-stirring box 10, the more uniform powder can be mixed with the more uniform raw materials when entering the stirring drum 1, so that the mixing time between the raw materials and the powder can be reduced, thereby improving the efficiency.

[0052] It should be noted that the stirring motor 7 is an existing device or equipment, or an existing device or equipment that can be realized. The power supply, specific composition and principle of the stirring motor 7 are clear to those skilled in the art, and therefore will not be described in detail.

[0053] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A concrete production apparatus, comprising a mixing drum (1), wherein a support (2) is fixedly disposed at the bottom of the mixing drum (1), and a discharge pipe (3) for discharging material and communicating with the mixing drum (1) is fixedly disposed on the surface of the support (2), characterized in that: Two sets of connecting rods (4) are fixedly provided on the surface of the support (2), and a fixing plate (5) is fixedly provided between the two sets of connecting rods (4). A connecting seat (6) is integrally formed on the surface of the fixing plate (5). A stirring motor (7) is fixedly provided on the top of the connecting seat (6). The output end of the stirring motor (7) passes through the connecting seat (6) and is fixedly connected to a threaded rod (8). A mixing component for bidirectional stirring of the raw materials is provided between the threaded rod (8) and the stirring cylinder (1). The top of the mixing drum (1) is fixedly provided with a pre-mixing box (10) by a support rod (9). The bottom of the pre-mixing box (10) is provided with a discharge port (11) for adding powder to the mixing drum (1). The interior of the pre-mixing box (10) is provided with a pre-mixing component for pre-mixing the powder. A discharge component for quantitatively discharging the powder is provided between the threaded rod (8) and the pre-mixing box (10). The mixing assembly includes a traction ring (12), and a chuck (13) for limiting the traction ring (12) is fixedly provided on the top of the mixing cylinder (1). The traction ring (12) is movably disposed in the cavity (14) formed by the chuck (13) and the mixing cylinder (1). The outer wall of the traction ring (12) is provided with a cleaving tooth (15). The surface of the threaded rod (8) is fixedly provided with a drive gear (16) that meshes with the cleaving tooth (15). The surface of the traction ring (12) is fixedly provided with a first stirring rod (17) for clockwise stirring of the raw materials. The stirring motor (7) drives the drive gear (16) to rotate through the threaded rod (8), and the drive gear (16) drives the traction ring (12) to rotate through the snap ring (15), thereby causing the traction ring (12) to drive the first stirring rod (17) to rotate and stir the raw materials. The mixing assembly also includes a drive shaft (18), which passes through the mixing drum (1) and is rotatably mounted on the surface of the support (2). The support (2) and the threaded rod (8) are driven by a traction gear (19) and a chain (20). A second stirring rod (21) for counterclockwise stirring of the raw materials is fixedly mounted on the surface of the drive shaft (18). The stirring motor (7) drives the threaded rod (8) to rotate, and the threaded rod (8) drives the drive shaft (18) to rotate through the traction gear (19) and chain (20), and then drives the second stirring rod (21) to rotate through the drive shaft (18) to stir the raw materials. The pre-mixing assembly includes a connecting shaft (22), and the top of the drive shaft (18) is fixedly provided with a connecting shaft (22) that passes through the discharge port (11) and extends into the interior of the pre-mixing tank (10), and a pre-mixing rod (23) is fixedly provided on the surface of the connecting shaft (22). When the stirring motor (7) drives the drive shaft (18) to rotate, it will drive the connecting shaft (22) to rotate synchronously. At this time, the connecting shaft (22) can drive the pre-stirring rod (23) to rotate synchronously in the pre-stirring box (10), so that the pre-stirring rod (23) pre-stirs the powder inside the pre-stirring box (10).

2. The concrete production apparatus according to claim 1, characterized in that: The unloading assembly includes a traction seat (24), which is threaded to the surface of the threaded rod (8), and both ends of the traction seat (24) are movably disposed on the surface of the connecting rod (4). Two sets of support arms (26) are fixedly disposed on the surface of the traction seat (24) through two sets of connecting arms (25). A traction arm (27) is fixedly disposed between the two sets of support arms (26). A plug (29) is fixedly disposed at one end of the traction arm (27) through the upright rod (28). The bottom of the plug (29) is engaged inside the discharge port (11), and the plug (29) is movably disposed on the surface of the connecting shaft (22). The stirring motor (7) drives the traction seat (24) to move linearly on the surface of the threaded rod (8). When the traction seat (24) moves, it drives the traction arm (27) to move synchronously through the connecting arm (25) and the support arm (26). When the traction arm (27) moves, it drives the plug (29) to move synchronously on the surface of the connecting shaft (22) inside the pre-mixing tank (10). The powder inside the pre-mixing tank (10) will leak into the stirring drum (1) through the gap between the plug (29) and the discharge port (11).

3. A concrete production apparatus according to claim 1, characterized in that: Both the first stirring rod (17) and the second stirring rod (21) are inclined, and the inclination directions of the first stirring rod (17) and the second stirring rod (21) are the same.

4. A concrete production apparatus according to claim 1, characterized in that: The inner wall of the discharge port (11) and the surface of the plug (29) are both designed as conical structures.

5. A concrete production apparatus according to claim 2, characterized in that: The surface of the traction seat (24) is fixedly provided with a reinforcing rod (30) for increasing the overall strength, and the reinforcing rod (30) and the traction seat (24) form a triangular structure.

6. A concrete production apparatus according to any one of claims 1 or 3, characterized in that: The cross-section of the claw (13) is set as an L-shaped structure, and the inner wall of the claw (13) is attached to the outer wall of the traction ring (12). The inner wall of the stirring cylinder (1) is integrally formed with a baffle (31), and the top of the baffle (31) abuts against the bottom of the traction ring (12).

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