Premixing equipment for concrete production and processing

Abstract

The invention relates to the technical field of concrete production, in particular to premixing equipment for concrete production and processing, which is characterized in that a moving assembly is arranged on a sealing cover, the moving assembly comprises a shell, a round vertical rod rotating in the axial direction of the shell is arranged in the shell, a disc capable of moving up and down is arranged on the round vertical rod, and a swing disc is hinged to the round vertical rod; a through groove is formed in the swing disc, a connecting rod is hinged to the swing disc, the other end of the connecting rod is hinged to the bottom of the disc, an annular groove is formed in the side face of the swing disc, and a ball is arranged in the annular groove. The swing disc is driven by the connecting rod to incline to different degrees, the swing disc can drive the ball to reciprocate up and down through the annular groove, and the ball drives the stirring assembly to move up and down through the connecting assembly, so that the stirring assembly can move up and down while stirring.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete production, and particularly relates to a premixing device for concrete production and processing. Background Art

[0002] A concrete premixing device is a mechanical device used to pre-mix and stir various raw materials required for concrete production (such as cement, sand and gravel, water, admixtures, etc.) according to a certain mixing ratio to produce a concrete mixture that meets the quality requirements.

[0003] The existing premixing device for concrete production and processing uses an electric motor to drive the stirring shaft to rotate. However, the rotation of the stirring shaft can only drive the rotation in the horizontal direction, and it cannot well achieve the mixing between the upper and lower layers of materials, and the mixing time required is relatively long. To solve the foregoing problems, a premixing device for concrete production and processing is provided. Summary of the Invention

[0004] In view of the deficiencies of the existing technology, the present invention provides the following technical solutions: A premixing device for concrete production and processing, comprising: a support frame, a premixing barrel is arranged on the support frame, a discharge port is arranged at the bottom of the premixing barrel, a valve is arranged at the discharge port, and a sealing cover is arranged at the top of the premixing barrel;

[0005] A motion component is arranged on the sealing cover. The motion component includes a housing, a circular vertical rod that rotates along its own axis is arranged inside the housing, a disk that can move up and down is arranged on the circular vertical rod, a swinging disk is hinged on the circular vertical rod, a through groove is formed on the swinging disk, a connecting rod is hinged on the swinging disk, the other end of the connecting rod is hinged to the bottom of the disk, an annular groove is arranged on the side surface of the swinging disk, and a spherical ball is arranged in the annular groove;

[0006] A stirring component arranged at the bottom of the sealing cover, and the stirring component is connected to the bottom of the circular vertical rod in a vertical sliding manner along the circular vertical rod;

[0007] A connecting component arranged on the inner wall of the housing, the spherical ball is fixedly connected to the connecting component, and the top of the connection between the stirring component and the circular vertical rod is connected to the bottom of the connecting component.

[0008] As an improvement of the above technical solution, a lifting component is provided on the support frame. The lifting component includes a support column and a first motor. A sliding cavity is formed in the support column. The first motor is located at the bottom of the sliding cavity. A right-angle groove is formed in the side wall of the sliding cavity. A lifting plate is slidably arranged in the sliding cavity. The lifting plate penetrates through the right-angle groove. A connecting plate is sleeved outside the support column. The lifting plate is fixedly connected to the connecting plate. The connecting plate is fixedly connected to the sealing cover. A threaded column that rotates along its own axis is arranged in the sliding cavity. The bottom of the threaded column is drivingly connected to the output end of the first motor. The threaded column is in threaded connection with the lifting plate.

[0009] As an improvement of the above technical solution, the stirring component includes a stirring rod and multiple groups of stirring blades. The top end of the stirring rod penetrates through the sealing cover. The top of the stirring rod is slidably connected to the bottom of the round vertical rod in the up and down direction. Multiple groups of the stirring blades are arranged in an up and down array on the stirring rod. Multiple groups of connecting rods are fixedly arranged on the stirring rod. Multiple groups of hanging strips are fixedly arranged at the ends of the connecting rods. The hanging strips are mutually attached to the inner wall of the premixing barrel.

[0010] As an improvement of the above technical solution, the connecting component includes a lifting rod and a U-shaped rod. The lifting rod is slidably connected to the inner wall of one side of the housing. A sliding groove is formed in the lifting rod. A moving block is slidably arranged in the sliding groove. The U-shaped rod penetrates through both sides of the sliding groove. The moving block is located below the top of the U-shaped rod. A threaded rod that rotates along its own axis is arranged in the sliding groove. The threaded rod is in threaded connection with the moving block. A knob is fixedly arranged at the top of the threaded rod. The threaded rod penetrates through the top of the U-shaped rod. The lifting rod penetrates through the top of the housing. A cross plate is fixedly arranged at the bottom of the U-shaped rod. The cross plate is rotationally connected to the top end of the stirring rod through a rotating shaft. The spherical ball is fixedly connected to the bottom end of one side of the lifting rod.

[0011] As an improvement of the above technical solution, a moving plate is rotationally connected to the outside of the disc. An electric push rod is fixedly arranged at the top of the housing. The piston rod end of the electric push rod penetrates through the top of the housing. The piston rod end of the electric push rod is fixedly connected to the moving plate.

[0012] As an improvement of the above technical solution, a second motor is fixedly arranged on one side of the housing. A pair of sprockets are arranged outside the housing. One of the sprockets is fixedly connected to the output end of the second motor. The top end of the round vertical rod penetrates through the top of the housing. The other sprocket is fixedly arranged at the top end of the round vertical rod. A chain is meshed on the pair of sprockets. A protective cover is arranged at the top of the housing. The sprockets and the chain are located inside the protective cover.

[0013] As an improvement of the above technical solution, the support frame includes a bottom plate and a pair of columns. The pair of columns are located on both sides of the premixing barrel. The two sides of the top of the columns are connected to the premixing barrel. The support column is fixedly arranged on the bottom plate.

[0014] As an improvement of the above technical solution, the circular vertical rod penetrates through the through groove on the swing plate, and the connection position of the connecting rod and the swing plate is located at the front end of the short side of the through groove.

[0015] As an improvement of the above technical solution, a connecting strip is fixedly arranged on the side surface of the circular vertical rod, the disc is slidably arranged at the connecting strip of the circular vertical rod, and baffles are fixedly arranged at both ends of the connecting strip respectively.

[0016] As an improvement of the above technical solution, the circular vertical rod and the stirring rod are on the same circular axis, and the stirring rod is located at the center of the sealing cover.

[0017] Advantages of the present invention:

[0018] Through the combined use of the circular vertical rod, the disc, the swing plate, the connecting rod, the spherical ball and the connecting component, when premixing concrete, the circular vertical rod drives the disc and the swing plate to rotate together. When the disc moves on the circular vertical rod, the connecting rod drives the swing plate to tilt to different degrees. When the swing plate is in an inclined state, the swing plate drives the spherical ball to move up and down reciprocally through the annular groove, and the spherical ball drives the stirring component to move up and down through the connecting component, so that it can move up and down while stirring, which can better realize the mixing between the upper and lower layers of materials and reduce the time required for mixing. Description of the drawings

[0019] Figure 1 is the front view structural schematic diagram of the present invention;

[0020] Figure 2 is the sectional view of the premixing barrel of the present invention;

[0021] Figure 3 is the sectional view of the housing of the present invention;

[0022] Figure 4 is the sectional view of the lifting rod of the present invention;

[0023] Figure 5 is the positional relationship diagram of the right-angle groove and the lifting disc of the present invention;

[0024] Figure 6 is the sectional view of the support column of the present invention.

[0025] Reference numerals: 10, support frame; 11, bottom plate; 12, vertical column; 20, premixing barrel; 21, discharge port; 22, valve; 23, sealing cover; 30, moving assembly; 31, housing; 32, round vertical rod; 321, connecting strip; 322, baffle; 33, disc; 331, moving plate; 332, electric push rod; 34, swinging disc; 35, through groove; 36, connecting rod; 37, annular groove; 38, spherical ball; 40, stirring assembly; 41, stirring rod; 42, stirring blade; 43, connecting rod; 44, hanging strip; 50, connecting assembly; 51, lifting rod; 52, U-shaped rod; 53, sliding groove; 54, moving block; 55, threaded rod; 56, knob; 57, cross plate; 60, lifting assembly; 61, support column; 62, motor I; 63, sliding cavity; 64, right-angled groove; 65, lifting disc; 66, connecting plate; 67, threaded column; 70, motor II; 71, sprocket; 72, chain; 73, protective cover. Detailed implementation mode

[0026] The following specific examples illustrate the implementation modes of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] In the existing premixing equipment for concrete production and processing, an electric motor is used to drive the stirring shaft to rotate. However, the rotation of the stirring shaft can only drive the rotation in the horizontal direction, and it cannot well achieve the mixing between the upper and lower layers of materials, and the mixing time required is relatively long.

[0028] To solve this problem, please refer to Figure 1-6 , a premixing equipment for concrete production and processing, comprising: a support frame 10, a moving assembly 30 is arranged on the sealing cover 23, a stirring assembly 40 is arranged at the bottom of the sealing cover 23, a premixing barrel 20 is arranged on the support frame 10, and a connecting assembly 50 is arranged on the inner wall of the housing 31;

[0029] The bottom of the premixing barrel 20 is provided with a discharge port 21, a valve 22 is arranged at the discharge port 21, the top of the premixing barrel 20 is provided with a sealing cover 23, the moving assembly 30 includes a housing 31, a circular vertical rod 32 that rotates along its own axis is arranged inside the housing 31, a vertically movable disc 33 is arranged on the circular vertical rod 32, a swinging disc 34 is hinged on the circular vertical rod 32, a through groove 35 is formed on the swinging disc 34, a connecting rod 36 is hinged on the swinging disc 34, the other end of the connecting rod 36 is hinged to the bottom of the disc 33, an annular groove 37 is arranged on the side surface of the swinging disc 34, a spherical ball 38 is arranged in the annular groove 37, the stirring assembly 40 is slidably connected to the bottom of the circular vertical rod 32 along the vertical direction of the circular vertical rod 32, the spherical ball 38 is fixedly connected to the connecting assembly 50, and the top of the connection between the stirring assembly 40 and the circular vertical rod 32 is connected to the bottom of the connecting assembly 50.

[0030] During use, put the concrete raw materials to be premixed into the premixing barrel 20, cover the sealing cover 23, rotate the circular vertical rod 32, and the circular vertical rod 32 drives the disc 33, the swinging disc 34 and the stirring assembly 40 to rotate together. The raw materials in the premixing barrel 20 are stirred and mixed by the rotation of the stirring assembly 40. When stirring the stirring assembly 40, move the disc 33 upward. The disc 33 drives the swinging disc 34 to be inclined towards the direction of the connecting rod 36 through the connecting rod 36. When the swinging disc 34 is inclined, it will drive the spherical ball 38 to move upward through the annular groove 37. The spherical ball 38 is in the annular groove 37. When the annular groove 37 rotates in an inclined state, the spherical ball 38 will move up and down due to the annular groove 37. The spherical ball 38 drives the rotating stirring assembly 40 to move up and down reciprocally while stirring through the connecting assembly 50. Thus, under the reciprocating up and down stirring, the concrete in the premixing barrel 20 can be stirred evenly faster and more fully. After the concrete is mixed, open the valve 22 at the discharge port 21 so that the internally mixed concrete can be discharged from the discharge port 21.

[0031] In the specific implementation process, as Figure 5 Figure 6 shown, the lifting assembly 60 arranged on the support frame 10 includes a support column 61 and a motor 62. A sliding cavity 63 is formed inside the support column 61. The motor 62 is located at the bottom of the sliding cavity 63. A right-angle groove 64 is formed on the side wall of the sliding cavity 63. A lifting disc 65 is slidably arranged in the sliding cavity 63. The lifting disc 65 penetrates through the right-angle groove 64. A connecting plate 66 is sleeved outside the support column 61. The lifting disc 65 is fixedly connected to the connecting plate 66. The connecting plate 66 is fixedly connected to the sealing cover 23. A threaded column 67 that rotates along its own axis is arranged in the sliding cavity 63. The bottom of the threaded column 67 is in transmission connection with the output end of the motor 62. The threaded column 67 is in threaded connection with the lifting disc 65.

[0032] During use, it is necessary to first open the sealing cover 23 to put the concrete raw materials into the premixing barrel 20. Then, start the first motor 62. The first motor 62 drives the threaded column 67 to rotate. The threaded column 67 drives the lifting plate 65 to move up and down through the right-angle groove 64. The lifting plate 65 drives the connecting plate 66 to rise through the right-angle groove 64. The connecting plate 66 drives the sealing cover 23 to rise, thus opening the sealing cover 23. When the sealing cover 23 rises, it also drives the stirring assembly 40 and the connecting assembly 50 to rise together, enabling the stirring assembly 40 to disengage from the premixing barrel 20, which facilitates the addition of raw materials. When the lifting plate 65 moves to the highest point of the right-angle groove 64 in the sliding cavity 63, due to friction, the lifting plate 65 will move and rotate in the direction of the rotation of the first motor 62, so that the lifting plate 65 rotates to the horizontal section of the right-angle groove 64, enabling it to drive the sealing cover 23 to rotate horizontally, so that the stirring assembly 40 is not directly above the premixing barrel 20, reducing the impact on feeding. After the feeding is completed, reverse the rotation of the first motor 62 to drive the sealing cover 23 to cover the top of the premixing barrel 20 again.

[0033] In the specific implementation process, as Figure 2 and Figure 3 shown, the stirring assembly 40 includes a stirring rod 41 and multiple groups of stirring blades 42. The top of the stirring rod 41 penetrates through the sealing cover 23. The top of the stirring rod 41 is slidably connected to the bottom of the round vertical rod 32 up and down. Multiple groups of stirring blades 42 are arranged in an up-and-down array on the stirring rod 41. Multiple groups of connecting rods 43 are fixedly arranged on the stirring rod 41. The ends of multiple groups of connecting rods 43 are fixedly provided with hanging strips 44. The hanging strips 44 are in mutual contact with the inner wall of the premixing barrel 20.

[0034] The stirring assembly 40 is used to stir and mix the concrete raw materials. During use, the stirring rod 41 drives the stirring blades 42 and the connecting rods 43 to rotate. Under the rotation of the stirring blades 42, the concrete is mixed. The connecting rods 43 drive the hanging strips 44 to rotate. The hanging strips 44 are in contact with the premixing barrel 20, and the raw materials attached to the premixing barrel 20 can be scraped off. After the concrete is stirred, the residual concrete in the barrel can also be scraped off, reducing the internal concrete residue, which facilitates the cleaning of the premixing barrel 20.

[0035] In the specific implementation process, as Figure 3 and Figure 4As shown, the connecting component 50 includes a lifting rod 51 and a portal rod 52. The lifting rod 51 is slidably connected to the inner wall on one side of the housing 31. A sliding groove 53 is formed in the lifting rod 51. A moving block 54 is slidably arranged in the sliding groove 53. The portal rod 52 penetrates through both sides of the sliding groove 53. The moving block 54 is located below the top of the portal rod 52. A threaded rod 55 that rotates along its own axis is arranged in the sliding groove 53. The threaded rod 55 is threadedly connected to the moving block 54. A knob 56 is fixedly arranged at the top of the threaded rod 55. The threaded rod 55 penetrates through the top of the portal rod 52. The lifting rod 51 penetrates through the top of the housing 31. A cross plate 57 is fixedly arranged at the bottom of the portal rod 52. The cross plate 57 is rotatably connected to the top end of the stirring rod 41 by a rotating shaft. The spherical ball 38 is fixedly connected to the bottom end on one side of the lifting rod 51.

[0036] The connecting component 50 is used to connect the spherical ball 38 and the stirring component 40. Rotate the knob 56. The knob 56 drives the threaded rod 55 to rotate. The threaded rod 55 drives the internal moving block 54 to move up and down. The moving block 54 can drive the portal rod 52 to move up and down, so that the portal rod 52 drives the stirring component 40 to move up and down through the cross plate 57, thereby adjusting the position of the stirring component 40 in the premixing barrel 20.

[0037] In the specific implementation process, as Figure 2 and Figure 3 shown, a moving plate 331 is rotatably connected to the outside of the disc 33. An electric push rod 332 is fixedly arranged at the top of the housing 31. The piston rod end of the electric push rod 332 penetrates through the top of the housing 31. The piston rod end of the electric push rod 332 is fixedly connected to the moving plate 331.

[0038] When the disc 33 moves up and down, start the electric push rod 332. The electric push rod 332 drives the disc 33 to move up and down through the moving plate 331. The moving plate 331 enables the disc 33 to move up and down without affecting the self-rotation of the disc 33 when driving the disc 33.

[0039] In the specific implementation process, as Figure 2 and Figure 3 shown, a second motor 70 is fixedly arranged on one side of the housing 31. A pair of sprockets 71 are arranged outside the housing 31. One sprocket 71 is fixedly connected to the output end of the second motor 70. The top end of the round vertical rod 32 penetrates through the top of the housing 31. The other sprocket 71 is fixedly arranged at the top end of the round vertical rod 32. A chain 72 is meshed on the pair of sprockets 71. A protective cover 73 is arranged at the top of the housing 31. The sprockets 71 and the chain 72 are located inside the protective cover 73.

[0040] When the circular vertical rod 32 needs to rotate, the second motor 70 is started. The second motor 70 drives the sprocket 71 to rotate. The sprocket 71 drives the circular vertical rod 32 to move and rotate through the chain 72. The sprocket 71 and the chain 72 are used to prevent damage to the second motor 70 caused by the jamming of the moving component 30 and the stirring component 40. The protective cover 73 is used to protect the sprocket 71 and the chain 72.

[0041] In the specific implementation process, as Figure 1 and Figure 2 shown, the support frame 10 includes a bottom plate 11 and a pair of columns 12. The pair of columns 12 are located on both sides of the premixing barrel 20. Both sides of the top of the column 12 are connected to the premixing barrel 20. The support column 61 is fixedly arranged on the bottom plate 11.

[0042] The support frame 10 is used to support the premixing barrel 20. By connecting the column 12 with the premixing barrel 20, the premixing barrel 20 forms a certain height from the ground.

[0043] In the specific implementation process, as Figure 3 and Figure 4 shown, the circular vertical rod 32 penetrates through the through groove 35 on the swing plate 34. The connection part of the connecting rod 36 and the swing plate 34 is located at the front end of the short side of the through groove 35.

[0044] During use, the through groove 35 on the swing plate 34 enables the swing plate 34 to tilt to a certain extent when the swing plate 34 is pulled by the connecting rod 36.

[0045] In the specific implementation process, as Figure 4 shown, a connecting strip 321 is fixedly arranged on the side surface of the circular vertical rod 32. The disc 33 is slidably arranged at the connecting strip 321 of the circular vertical rod 32. Baffles 322 are fixedly arranged at both ends of the connecting strip 321.

[0046] During use, the connecting strip 321 on the side surface of the circular vertical rod 32 enables the circular vertical rod 32 not to affect the up and down movement of the disc 33 when driving the disc 33 to rotate. The connecting strip 321 enables the disc 33 not to disengage during movement. When the disc 33 is located at the bottom baffle 322 of the connecting strip 321, the swing plate 34 does not tilt and is in a horizontal state, enabling the rotating stirring component 40 to move up and down. When the disc 33 is located at the top baffle 322 of the connecting strip 321, the tilt angle of the swing plate 34 is the largest, and at this time, the up and down movement amplitude of the stirring component 40 is the largest.

[0047] In the specific implementation process, as Figure 4 shown, the circular vertical rod 32 and the stirring rod 41 are on the same circular axis, and the stirring rod 41 is located at the center of the sealing cover 23.

[0048] During use, the circular vertical rod 32 and the stirring rod 41 are located on the same circular axis, so that the circular vertical rod 32 can drive the stirring rod 41 to rotate together when rotating, and thus will not affect the up and down sliding of the stirring rod 41 at the bottom of the circular vertical rod 32.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A premixing device for concrete production and processing, characterized in that, Comprising: A support frame (10), on which a premixing barrel (20) is arranged. A discharge port (21) is arranged at the bottom of the premixing barrel (20), and a valve (22) is arranged at the discharge port (21). A sealing cover (23) is arranged at the top of the premixing barrel (20); A motion assembly (30) is arranged on the sealing cover (23). The motion assembly (30) includes a housing (31). A circular vertical rod (32) that rotates along its own axis is arranged inside the housing (31). A vertically movable disk (33) is arranged on the circular vertical rod (32). A swing disk (34) is hinged on the circular vertical rod (32). A through groove (35) is formed on the swing disk (34). A connecting rod (36) is hinged on the swing disk (34), and the other end of the connecting rod (36) is hinged to the bottom of the disk (33). An annular groove (37) is arranged on the side of the swing disk (34), and a spherical ball (38) is arranged in the annular groove (37); A stirring assembly (40) arranged at the bottom of the sealing cover (23), and the stirring assembly (40) is connected to the bottom of the circular vertical rod (32) and slides up and down along the vertical direction of the circular vertical rod (32); A connecting assembly (50) arranged on the inner wall of the housing (31). The spherical ball (38) is fixedly connected to the connecting assembly (50), and the top of the connection between the stirring assembly (40) and the circular vertical rod (32) is connected to the bottom of the connecting assembly (50).

2. The premixing device for concrete production and processing according to claim 1, wherein: A lifting assembly (60) arranged on the support frame (10). The lifting assembly (60) includes a support column (61) and a first motor (62). A sliding cavity (63) is formed inside the support column (61). The first motor (62) is located at the bottom of the sliding cavity (63). A right-angle groove (64) is formed on the side wall of the sliding cavity (63). A lifting disk (65) is slidably arranged inside the sliding cavity (63). The lifting disk (65) penetrates through the right-angle groove (64). A connecting plate (66) is sleeved outside the support column (61). The lifting disk (65) is fixedly connected to the connecting plate (66), and the connecting plate (66) is fixedly connected to the sealing cover (23). A threaded column (67) that rotates along its own axis is arranged inside the sliding cavity (63). The bottom of the threaded column (67) is drivingly connected to the output end of the first motor (62), and the threaded column (67) is threadedly connected to the lifting disk (65).

3. A premixing device for concrete production and processing according to claim 1, characterized in that: The stirring assembly (40) includes a stirring rod (41) and multiple groups of stirring blades (42). The top end of the stirring rod (41) penetrates through the sealing cover (23), and the top of the stirring rod (41) is slidably connected to the bottom of the circular vertical rod (32). Multiple groups of the stirring blades (42) are arranged in an up-and-down array on the stirring rod (41). Multiple groups of connecting rods (43) are fixedly arranged on the stirring rod (41). The ends of multiple groups of the connecting rods (43) are fixedly provided with hanging strips (44), and the hanging strips (44) are mutually attached to the inner wall of the premixing barrel (20).

4. A premixing device for concrete production and processing according to claim 3, characterized in that: The connecting component (50) includes a lifting rod (51) and a U-shaped rod (52). The lifting rod (51) is slidably connected to the inner wall of one side of the housing (31). A sliding groove (53) is formed in the lifting rod (51). A moving block (54) is slidably arranged in the sliding groove (53). The U-shaped rod (52) penetrates through both sides of the sliding groove (53). The moving block (54) is located below the top of the U-shaped rod (52). A threaded rod (55) that rotates along its own axis is arranged in the sliding groove (53). The threaded rod (55) is threadedly connected to the moving block (54). A knob (56) is fixedly arranged at the top of the threaded rod (55). The threaded rod (55) penetrates through the top of the U-shaped rod (52). The lifting rod (51) penetrates through the top of the housing (31). A cross plate (57) is fixedly arranged at the bottom of the U-shaped rod (52). The cross plate (57) is rotationally connected to the top end of the stirring rod (41) by a rotating shaft. The spherical ball (38) is fixedly connected to the bottom end of one side of the lifting rod (51).

5. A premixing device for concrete production and processing according to claim 1, characterized in that: A moving plate (331) is rotationally connected to the outside of the disc (33). An electric push rod (332) is fixedly arranged at the top of the housing (31). The piston rod end of the electric push rod (332) penetrates through the top of the housing (31). The piston rod end of the electric push rod (332) is fixedly connected to the moving plate (331).

6. A premixing device for concrete production and processing according to claim 1, characterized in that: A second motor (70) is fixedly arranged on one side of the housing (31). A pair of sprockets (71) are arranged outside the housing (31). One of the sprockets (71) is fixedly connected to the output end of the second motor (70). The top end of the round vertical rod (32) penetrates through the top of the housing (31). The other sprocket (71) is fixedly arranged at the top end of the round vertical rod (32). A chain (72) is meshed on the pair of sprockets (71). A protective cover (73) is arranged at the top of the housing (31). The sprockets (71) and the chain (72) are located inside the protective cover (73).

7. A premixing device for concrete production and processing according to claim 1, characterized in that: The support frame (10) includes a bottom plate (11) and a pair of columns (12). The pair of columns (12) are located on both sides of the premixing barrel (20). The two sides of the top of the columns (12) are connected to the premixing barrel (20). The support column (61) is fixedly arranged on the bottom plate (11).

8. A premixing device for concrete production and processing according to claim 1, characterized in that: The round vertical rod (32) penetrates through the through groove (35) on the swing disc (34). The connection part of the connecting rod (36) and the swing disc (34) is located at the front end of the short side of the through groove (35).

9. A premixing device for concrete production and processing according to claim 1, characterized in that: A connecting strip (321) is fixedly arranged on the side surface of the round vertical rod (32). The disc (33) is slidably arranged at the connecting strip (321) of the round vertical rod (32). Baffles (322) are respectively fixedly arranged at both ends of the connecting strip (321).

10. A premixing device for concrete production and processing according to claim 1, characterized in that: The round vertical rod (32) and the stirring rod (41) are on the same circular axis. The stirring rod (41) is located at the center of the sealing cover (23).

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