Cement mortar mixing equipment and mixing method for building construction

Abstract

The present application relates to the technical field related to construction equipment, and discloses a cement mortar mixing equipment for construction and a mixing method thereof. In order to solve the problem of cement agglomeration, a movable stirring paddle and a fixed stirring paddle fixed on a stirring shaft are arranged in the equipment. When a driving unit drives the stirring shaft to rotate forwardly, the movable stirring paddle and the fixed stirring paddle are forced to be distributed 180 degrees, so that cement and sand and gravel in a stirring chamber are stirred according to the movable stirring paddle and the fixed stirring paddle. When the stirring shaft rotates reversely, the movable stirring paddle and the fixed stirring paddle can be aligned. The movable stirring paddle and the fixed stirring paddle can be used to fish out the solid sand and gravel and agglomerated cement in the stirring chamber. When the two are moved to a high position due to the rotation of the stirring shaft, the sand and gravel and agglomerated cement can be squeezed against each other during the downward falling of the solid sand and gravel, and the agglomerated cement can be ground and crushed by the sand and gravel, thereby finally achieving the effect of forward stirring and reverse agglomeration.

Description

Technical Field

[0001] The present application relates to the technical field related to construction equipment, and in particular to a cement mortar mixing device and a mixing method thereof for construction. Background Art

[0002] Cement mortar mixer plays a vital role in the construction industry. As a key equipment, it is specially used to mix core raw materials such as cement, sand and gravel aggregates and water into uniform mortar. This process is achieved through the rotation of the mixing blades in the mixing drum, as well as the rotation or swing of the mixing drum itself, ensuring rapid and sufficient mixing of the raw materials. This mixer has many advantages such as uniform mixing, high working efficiency and easy operation, so it has been widely used in many fields such as construction sites, laboratories and production of artificial stone.

[0003] However, some current mortar mixers have difficulty ensuring complete and uniform mixing of the mortar during unidirectional continuous mixing due to the fixed motion mode of the mixing blades and mixing drum. This uneven mixing phenomenon can easily cause cement particles to aggregate into clumps during the mixing process, which in turn has a negative impact on the overall quality and performance of the mortar. Summary of the invention

[0004] The present application proposes a cement mortar mixing device and a mixing method for construction, which have the advantages of forward stirring and reverse deagglomeration, and are used to solve the problem of cement agglomeration caused by uneven stirring of the mixer mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a cement mortar mixing equipment for construction, comprising: a bracket, a mixing barrel connected to the surface; a mixing shaft, movably installed in the mixing barrel; a driving unit, fixedly connected to the surface of the bracket, used to drive the mixing shaft to rotate; a fixed mixing paddle, installed on the outer side of the mixing shaft, used to mix a mixture of cement and sand and gravel; a movable sleeve, which is movably sleeved on the outer side of the mixing shaft, and a limiting block is fixedly connected on the inner side, and the limiting block moves in a limiting groove opened on the outer side of the mixing shaft; a movable mixing paddle, fixedly connected to the outer side of the movable sleeve, used to mix the mixture of cement and sand and gravel; a mixing chamber, which is opened inside the mixing barrel, and the movable mixing paddle and the fixed mixing paddle are both arranged in the mixing chamber, used to accommodate and mix the mixture of cement and sand and gravel; an ash discharge pipe, fixedly connected to the bottom of one end of the mixing barrel, used to control the discharge of the mixed concrete to the outside.

[0006] Furthermore, there are multiple fixed stirring paddles, and the multiple fixed stirring paddles are horizontally arranged with equal distances between them.

[0007] Furthermore, a magnetic groove is opened on the inner side of the stirring shaft, and a driving gear row is movably installed in the magnetic groove, one end of the driving gear row is fixedly connected to a magnetic block, and a reset spring is connected between the other end of the driving gear row and the inner side of the stirring shaft, a connecting sleeve is movably installed on the outer side of the stirring shaft, and the bottom of the connecting sleeve is fixedly connected to a deflection gear meshing with the outer teeth of the driving gear row, and the top of the connecting sleeve is fixedly connected to an inner support frame, and the fixed stirring paddle is movably installed on the inner support frame.

[0008] Furthermore, a switching convex head is fixedly connected to the outer side of the stirring shaft, ejection push plates are movably installed on both sides of the inner support frame, a lump-breaking rod is movably installed on both sides of the fixed stirring paddle, and a movable spring is arranged between the lump-breaking rod and the fixed stirring paddle.

[0009] Furthermore, the switching protrusion is in the shape of a cuboid.

[0010] Furthermore, the surface of the ejector push plate is inclined.

[0011] Furthermore, one end of the agglomerate-breaking rod is conical, and a ball is installed at the other end, and a plurality of agglomerate-breaking rods are equidistantly arranged on the surface of the fixed stirring paddle.

[0012] Furthermore, side blocks are fixedly installed on both sides of the fixed stirring paddle.

[0013] A mixing method of cement mortar mixing equipment for construction, comprising the following steps:

[0014] S1. Pour in materials:

[0015] Pour the sand and cement to be mixed into the mixing chamber and prepare for mixing;

[0016] S2, forward stirring and mixing:

[0017] Start the driving unit to make the stirring shaft rotate in the forward direction;

[0018] Driven by the stirring shaft, the fixed stirring paddle and the movable stirring paddle rotate synchronously to preliminarily mix the sand and cement in the stirring chamber;

[0019] Since the movable stirring paddle is blocked by cement and sand, its deflection angle relative to the fixed stirring paddle reaches 180°, ensuring the mixing effect;

[0020] S3, reverse stirring, filtration and crushing:

[0021] Control the driving unit to make the stirring shaft rotate in the opposite direction;

[0022] When the movable stirring paddle pushes the concrete, the limit block moves along the limit groove until the movable stirring paddle and the fixed stirring paddle are aligned;

[0023] Driven by the stirring shaft, the movable stirring paddle and the fixed stirring paddle rotate again, and the gap between them is used to filter the sand and gravel and agglomerated cement in the concrete;

[0024] During the lifting process, the sand and gravel and the agglomerated cement move relative to each other due to the action of gravity. The collision of the sand and gravel with the agglomerated cement causes the cement agglomerates to be crushed into small particles, thus preventing the cement from agglomerating.

[0025] S4, forward stirring again:

[0026] The driving unit drives the stirring shaft to rotate in the forward direction again;

[0027] The movable stirring paddle and the fixed stirring paddle continue to rotate under the drive of the stirring shaft, ensuring that the cement and sand and gravel in the stirring chamber are mixed more evenly;

[0028] S5. Discharging:

[0029] When the stirring reaches the desired effect, open the valve on the ash discharge pipe;

[0030] The mixed concrete is discharged from the ash discharge pipe, completing the entire mixing and discharging process.

[0031] The present invention has the following beneficial effects:

[0032] The present application provides a cement mortar mixing equipment and a mixing method for construction. The equipment is internally provided with a movable stirring paddle and a fixed stirring paddle fixed on a stirring shaft, and the two work in coordination to achieve mixing targets at different stages.

[0033] When the drive unit starts and drives the mixing shaft to rotate in the forward direction, the movable mixing paddle and the fixed mixing paddle are arranged in the mixing chamber at a precise mechanical angle (distributed at 180 degrees). At this time, through the high-speed rotation and mutual cooperation of the two, the cement and sand in the mixing chamber are fully mixed, ensuring the uniformity and high efficiency of mixing.

[0034] When the mixing shaft rotates in the opposite direction, the movable and fixed mixing paddles are precisely aligned. At this time, their combined action is not only to re-mix the already mixed mixture, but more importantly, they can remove the solid sand and gravel deposited in the mixing chamber and the possible agglomerated cement. As the mixing shaft continues to rotate in the opposite direction, the movable and fixed mixing paddles carry the removed solid sand and gravel and agglomerated cement to the upper part of the mixing chamber. Under the action of gravity, these materials begin to fall. During the falling process, due to gravity and mutual collision, the sand and gravel and agglomerated cement will be squeezed against each other, especially the grinding and crushing effect of the sand and gravel on the agglomerated cement, which further promotes the uniform dispersion of cement and the refinement of the sand and gravel.

[0035] Through this unique forward and reverse stirring mechanism, the equipment not only achieves efficient stirring of cement mortar, but also cleans and crushes solid matter in the stirring chamber through reverse rotation, ensuring continuous optimization of the stirring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which constitute a part of the specification, illustrate the embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0037] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0038] Figure 1 It is a schematic diagram of the overall external three-dimensional structure;

[0039] Figure 2 It is a schematic diagram of the overall internal three-dimensional cross-sectional structure;

[0040] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable sleeve;

[0041] Figure 4 It is a three-dimensional schematic diagram of the overall structure of the stirring shaft;

[0042] Figure 5 It is a schematic diagram of the cross-sectional structure of the front part of the stirring shaft;

[0043] Figure 6 for Figure 5 The enlarged structural diagram at E in the middle;

[0044] Figure 7 It is a schematic diagram of the internal three-dimensional structure of the fixed stirring paddle;

[0045] Figure 8 It is a schematic diagram of the cross-sectional structure of the middle part of the fixed stirring paddle.

[0046] In the figure: 1. bracket; 2. drive unit; 3. mixing barrel; 300. mixing chamber; 4. mixing shaft; 400. limit groove; 401. magnetic groove; 5. movable sleeve; 500. movable mixing paddle; 501. limit block; 6. fixed mixing paddle; 7. breaking rod; 700. movable spring; 8. side block; 9. connecting sleeve; 10. deflection gear; 11. driving gear row; 12. magnetic block; 13. reset spring; 14. switching convex head; 15. inner support frame; 16. ejection push plate. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] Embodiment 1

[0049] See also Figure 1 It can be seen that the mixing barrel 3 is firmly connected to the surface of the bracket 1, and the surface of the bracket 1 has a driving unit 2 fixedly connected by bolts. The driving unit 2 includes a driving motor, a reducer and a pulley. A mixing shaft 4 is movably installed in the mixing barrel 3. When the driving unit 2 is started, the mixing shaft 4 is rotated by a belt.

[0050] A fixed stirring paddle 6 is installed on the outer side of the stirring shaft 4. Figure 2 and Figure 4 It can be clearly seen that there are six fixed stirring paddles 6, and the six fixed stirring paddles 6 are installed horizontally with equal distances. Figure 3 and Figure 4 It can be clearly seen that the outer movable sleeve of the stirring shaft 4 is provided with a movable sleeve 5, and the movable sleeve 5 is located between two adjacent fixed stirring paddles 6. Specifically, a limit groove 400 is provided on the outer side of the stirring shaft 4, and a corresponding limit block 501 is fixedly connected to the inner side of the movable sleeve 5. The limit block 501 moves in the limit groove 400, thereby limiting the movable sleeve 5 to deflect only within 0°-180°. The outer side of the movable sleeve 5 is fixedly connected with a movable stirring paddle 500. When the stirring shaft 4 rotates, the movable stirring paddle 500 can be used to stir the mixture of cement and sand and gravel.

[0051] Combination Figure 2 It can be clearly seen that a mixing chamber 300 is provided inside the mixing barrel 3, and both the movable mixing paddle 500 and the fixed mixing paddle 6 are arranged in the mixing chamber 300. When cement and sand and gravel need to be mixed, they only need to be placed in the mixing chamber 300. In order to discharge the mixed concrete to the outside, an ash discharge pipe is fixedly connected to the bottom of one end of the mixing barrel 3. A valve is provided on the ash discharge pipe, which is generally in a closed state, to ensure that the concrete will not leak out when being mixed in the mixing chamber 300.

[0052] In a specific implementation, the sand and cement to be mixed are poured into the stirring chamber 300. The driving unit 2 rotates forward so that the stirring shaft 4 rotates forward synchronously. When the stirring shaft 4 rotates, the movable stirring paddle 500 is blocked by the cement and the sand and gravel, so that the deflection angle between the movable stirring paddle 500 and the fixed stirring paddle 6 is 180°. At this time, the stirring state between the movable stirring paddle 500 and the fixed stirring paddle 6 is as follows: Figure 2 As shown in FIG, since the stirring shaft 4 continuously drives the movable stirring paddle 500 and the fixed stirring paddle 6 to rotate in the positive direction, the sand and cement in the stirring chamber 300 are mixed in a stirring state.

[0053] After stirring for a period of time, the driving unit 2 is controlled to make the stirring shaft 4 rotate in the opposite direction. When the movable stirring paddle 500 pushes the concrete, the limit block 501 moves along the limit groove 400 until the movable stirring paddle 500 and the fixed stirring paddle 6 are aligned. Figure 4 As shown. Afterwards, as the stirring shaft 4 drives the fixed stirring paddle 6 and the movable stirring paddle 500 to rotate again, the gap between the movable stirring paddle 500 and the fixed stirring paddle 6 can be used to filter the sand and gravel and the agglomerated cement in the concrete. As the stirring shaft 4 rotates continuously, the height of the sand and gravel and the agglomerated cement is also increased. When the movable stirring paddle 500 and the fixed stirring paddle 6 are in an upward tilted state, the gravity of the sand and gravel and the agglomerated cement will force the two to move relative to each other. When the two move relative to each other, the collision of the sand and gravel with the agglomerated cement will cause the agglomerated cement to be crushed into small particles, thereby avoiding the occurrence of cement agglomeration.

[0054] Finally, the driving unit 2 drives the stirring shaft 4 to rotate in the forward direction again, and after the cement and sand and gravel in the stirring chamber 300 are evenly mixed, they are discharged from the ash discharge pipe.

[0055] Embodiment 2

[0056] For further improvements based on Example 1, please refer to Figure 5-Figure 7It can be seen that the inner side of the stirring shaft 4 is provided with a magnetic groove 401 which is in communication with the limit groove 400, and a driving gear row 11 is movably installed in the magnetic groove 401, one end of the driving gear row 11 is fixedly connected with a magnetic block 12 close to the limit groove 400, and a reset spring 13 is connected between the other end of the driving gear row 11 and the inner side of the stirring shaft 4. Under the elastic force of the reset spring 13, the magnetic block 12 always has a tendency to move toward the limit groove 400. A connecting sleeve 9 is movably installed on the outer side of the stirring shaft 4, and a deflection gear 10 meshing with the outer teeth of the driving gear row 11 is fixedly connected to the bottom of the connecting sleeve 9, and an inner support frame 15 is fixedly connected to the top of the connecting sleeve 9. The fixed stirring paddle 6 is movably installed on the inner support frame 15. When the driving gear row 11 moves left and right, the driving gear row 11 is used to push the deflection gear 10 to rotate, forcing the connecting sleeve 9 to drive the fixed stirring paddle 6 to deflect, thereby changing the rotation direction of the fixed stirring paddle 6.

[0057] In actual application, when the stirring shaft 4 rotates forward, the movable stirring paddle 500 is blocked by the concrete and deflected in the limit groove 400, and the limit block 501 is away from the magnetic groove 401. Figure 5 It can be seen that, since the magnetic grooves 401 on both sides of the movable stirring paddle 500 are connected, and there is a magnetic repulsion relationship between the two adjacent magnetic blocks 12, the magnetic blocks 12 are forced to push the driving gear row 11 to move in the direction of the compression reset push spring 13. At the same time, the driving gear row 11 causes the connecting sleeve 9 to drive the inner support frame 15 to deflect through the deflection gear 10, thereby causing the fixed stirring paddle 6 to deflect. Finally, the adjacent fixed stirring paddles 6 on both sides of the movable stirring paddle 500 are deflected, and the deflection directions of the two are opposite. When the stirring shaft 4 drives the fixed stirring paddle 6 and the movable stirring paddle 500 to rotate forward, the two fixed stirring paddles 6 will be forced to move closer to the movable stirring paddle 500 after contacting the concrete due to their tilt, and the two adjacent fixed stirring paddles 6 are used to force the concrete to collide with each other along the axial direction of the stirring shaft 4, which, on the one hand, enhances the mixing strength of the concrete, and on the other hand, uses the strength generated by the collision to break the agglomerated cement, thereby reducing the influence of the agglomerated cement on the overall quality of the concrete. Afterwards, as the concrete gathers toward the movable mixing slurry 500, the movable mixing slurry 500 will break up the concrete when passing through it, and the cycle will continue, thereby enhancing the mixing strength of the concrete.

[0058] When the stirring shaft 4 rotates in the opposite direction, the movable stirring paddle 500 is pushed by the concrete, causing the limit block 501 to be blocked between the magnetic grooves 401, thereby blocking the magnetic repulsion between two adjacent magnetic blocks 12. Afterwards, under the elastic push of the reset spring 13, the driving gear row 11 moves in the direction close to the limit block 501. Finally, the connecting sleeve 9 is rotated in the opposite direction through the deflection gear 10, so that the fixed stirring paddle 6 and the movable stirring paddle 500 are aligned again. Afterwards, with the reverse rotation of the stirring shaft 4, the agglomerated cement is crushed again in the manner described in Example 1.

[0059] Embodiment 3

[0060] For further improvements based on Example 2, please refer to Figure 4 , Figure 7 and Figure 8 It can be clearly seen that the outer side of the stirring shaft 4 has a switching protrusion 14 fixedly connected to the inner side of the inner support frame 15 through a cylindrical rod, and the switching protrusion 14 is in the shape of a rectangular parallelepiped, and ejection push plates 16 are movably installed on both sides of the inner support frame 15. Figure 7 and Figure 8 It can be seen that when the inner support frame 15 is deflected, the switching protrusion 14 will not resist the ejection push plate 16. At this time, the ejection push plate 16 can move freely; when the inner support frame 15 is arranged relatively horizontally, the ejection push plate 16 blocked by the switching protrusion 14 will tend to move outward.

[0061] Combination Figure 7 and Figure 8 It can be clearly seen that the fixed stirring paddle 6 can reciprocate along the inner support frame 15. Figure 5 and Figure 8 As can be seen in the figure, the two sides of the fixed stirring paddle 6 are movably mounted with a breaking rod 7, and a movable spring 700 is arranged between the breaking rod 7 and the fixed stirring paddle 6. The elastic force of the movable spring 700 forces the breaking rod 7 to always press against the surface of the ejection push plate 16. Figure 8 It can be seen that the surface of the ejector push plate 16 is inclined. When the deagglomeration rod 7 pushes against the surface of the ejector push plate 16, the deagglomeration rod 7 is forced to move toward the bottom of the inclined surface, thereby causing the fixed stirring paddle 6 to separate from the inner support frame 15. In order to reduce the contact resistance between the deagglomeration rod 7 and the ejector push plate 16, refer to Figure 8 It can be clearly seen that one end of the deagglomeration rod 7 is conical, so as to break the agglomerated cement, and the other end of the deagglomeration rod 7 is installed with a ball, so as to reduce the contact friction between the deagglomeration rod 7 and the ejection push plate 16.

[0062] Combination Figure 4It can be seen that multiple agglomeration rods 7 are equidistantly arranged on the surface of the fixed stirring paddle 6, and the straight line segments formed by the multiple agglomeration rods 7 are relatively inclined. Side blocks 8 are fixedly installed on both sides of the fixed stirring paddle 6. The side blocks 8 can prevent the sand and gravel from sliding away from the sides of the fixed stirring paddle 6 when the fixed stirring paddle 6 lifts the sand and gravel, thereby ensuring that the sand and gravel can be lifted to a higher height by the fixed stirring paddle 6.

[0063] It should be noted that from Figure 1 and Figure 2 It can be seen that the cross-sectional shape of the stirring chamber 300 is circular, but an arc-shaped raised cover is provided on the outer top of the stirring barrel 3. When the fixed stirring paddle 6 moves upward along the stirring chamber 300, since the diameter of the arc-shaped raised cover is larger than the diameter of the stirring barrel 3, under the elastic force of the movable spring 700, the fixed stirring paddle 6 moves outward along the inner support frame 15, and finally the fixed stirring paddle 6 can move along the inner side of the arc-shaped raised cover on the stirring barrel 3, thereby ensuring that the fixed stirring paddle 6 can extend from the inner support frame 15 normally.

[0064] In specific implementation, when the driving unit 2 drives the stirring shaft 4 to rotate in the forward direction, the stirring shaft 4 drives the movable sleeve 5 to rotate. Since the movable stirring paddle 500 is blocked by the concrete, the limit block 501 is away from the magnetic groove 401. Then, the two adjacent magnetic blocks 12 drive the gear row 11 to push the deflection gear 10 to rotate under the action of magnetic repulsion, thereby deflecting the two adjacent fixed stirring paddles 6, and the deflection directions of the two are different. At the same time, when the deflection gear 10 drives the inner support frame 15 to deflect through the connecting sleeve 9, the switching protrusion 14 will not push against the ejection push plate 16, and the combination Figure 8 It can be seen that when the switching protrusion 14 does not push the ejection push plate 16 to move outward, the elastic force of the movable spring 700 is restored to make the deagglomeration rod 7 push the ejection push plate 16 to press the switching protrusion 14. At this time, only the conical tip of the deagglomeration rod 7 extends from the surface of the fixed stirring paddle 6. When the stirring shaft 4 drives the fixed stirring paddle 6 to rotate forward, the adjacent fixed stirring paddles 6 are used to push the concrete to collide with each other, thereby breaking the clumped cement. In addition, when the fixed stirring paddle 6 pushes the concrete to move, the concrete will also flow through the tip of the deagglomeration rod 7. Since only the tip of the deagglomeration rod 7 extends from the surface of the fixed stirring paddle 6 at this time, it will not cause any obstruction to the concrete. When the clumped cement moves from the tip of the deagglomeration rod 7, the deagglomeration rod 7 is used to cut the clumped cement, thereby further breaking the clumped cement.

[0065] When the driving unit 2 drives the stirring shaft 4 to rotate in the opposite direction, the movable stirring paddle 500 is pushed by the concrete, so that the limit block 501 is blocked between the magnetic grooves 401. After that, the driving gear row 11 pushes the deflection gear 10 to rotate under the elastic force of the reset push spring 13, and the deflection gear 10 is used to make the movable stirring paddle 500 and the fixed stirring paddle 6 horizontally aligned. At this time, the fixed stirring paddle 6 no longer deflects. At the same time, when the deflection of the inner support frame 15 is restored, it is blocked by the switching protrusion 14 and forces the ejection push plate 16 to be ejected outward. The ejection push plate 16 ejects outward, causing the breaking rod 7 to be ejected outward, so that the breaking rod 7 extends from the surface of the fixed stirring paddle 6, and further compresses the movable spring 700, thereby enhancing the strength of the end of the breaking rod 7 against the inclined surface of the ejection push plate 16.

[0066] As the stirring shaft 4 rotates in the opposite direction, the fixed stirring paddle 6 will use the fixed stirring paddle 6 and the movable stirring paddle 500 to remove the sand and gravel and cement agglomerates at the bottom of the stirring chamber 300 when passing through the bottom of the stirring chamber 300. As the stirring shaft 4 rotates in the opposite direction, the agglomerated cement agglomerates will be lifted upward. As the fixed stirring paddle 6 and the movable stirring paddle 500 are continuously lifted, the sand and gravel and cement agglomerates on the movable stirring paddle 500 will fall first and accumulate on the outside of the stirring shaft 4. The sand and gravel and cement agglomerates on the fixed stirring paddle 6 are blocked by the agglomeration rod 7, so that the sand and gravel will not slide off. As the stirring shaft 4 moves the fixed stirring paddle 6 to the inner side of the arc-shaped raised cover of the mixing barrel 3, the fixed stirring paddle 6 is forced to move away from the inner support frame 15 due to the elastic force of the movable spring 700. At the same time, the sand and gravel on the fixed stirring paddle 6 are further lifted. As the fixed stirring paddle 6 extends out from the inner support frame 15, the agglomerate breaking rod 7 farthest from the inner support frame 15 will be the first to detach from the inner support frame 15. When the agglomerate breaking rod 7 detaches from the top of the inner support frame 15, the elastic force of the movable spring 700 causes the agglomerate breaking rod 7 to be completely retracted into the fixed stirring paddle 6. Due to the retraction of the agglomerate breaking rod 7, the sand and gravel and agglomerated cement carried here will be released, so that the lifted sand and gravel and agglomerated cement will hit the concrete on the outside of the stirring shaft 4 downward, thereby enhancing the impact strength between the two.

[0067] As the fixed stirring paddle 6 is continuously extended, the agglomeration rod 7 on the fixed stirring paddle 6 is gradually moved away from the inner support frame 15, so that the agglomeration rod 7 releases the sand and cement agglomerates in turn. When the fixed stirring paddle 6 approaches the vertical state, the agglomeration rod 7 is completely separated from the inner support frame 15. As the stirring shaft 4 continuously rotates in the reverse direction, the top of the fixed stirring paddle 6 is affected by the inner side of the stirring chamber 300, and the fixed stirring paddle 6 is retracted toward the inner support frame 15 again, and the agglomeration rod 7 is gradually released from the inner support frame 15. Figure 8It can be seen that a sharp corner is provided on the top of the inner support frame 15. When the fixed stirring paddle 6 retreats, the angle is used to push the agglomerate-breaking rod 7 outward, forcing the agglomerate-breaking rod 7 to rest against the ejection push plate 16 again, and the cycle is repeated, thereby breaking up the agglomerated cement in the stirring chamber 300.

[0068] When the concrete is mixed evenly, open the ash discharge port to discharge the concrete.

Claims

1. A cement mortar mixing equipment for construction, characterized in that: include: A support (1) having a stirring barrel (3) connected to its surface; A stirring shaft (4) is movably mounted in the stirring barrel (3); A driving unit (2) is fixedly connected to the surface of the support (1) and is used to drive the stirring shaft (4) to rotate; A fixed stirring paddle (6) is installed on the outside of the stirring shaft (4) and is used to stir the mixture of cement and sand and gravel; A movable sleeve (5), which is movably mounted on the outside of the stirring shaft (4), and has a limit block (501) fixedly connected to the inside thereof, and the limit block (501) moves in a limit groove (400) provided on the outside of the stirring shaft (4); A movable stirring paddle (500) is fixedly connected to the outside of the movable sleeve (5) and is used to stir the mixture of cement and sand and gravel; A stirring chamber (300) is provided inside the stirring barrel (3), and a movable stirring paddle (500) and a fixed stirring paddle (6) are arranged in the stirring chamber (300) for containing and stirring a mixture of cement and sand and gravel; An ash discharge pipe, fixedly connected to the bottom of one end of the mixing barrel (3), and used to control the discharge of the mixed concrete; A magnetic groove (401) is provided on the inner side of the stirring shaft (4), and a driving gear row (11) is movably installed in the magnetic groove (401), one end of the driving gear row (11) is fixedly connected to a magnetic block (12), a return spring (13) is connected between the other end of the driving gear row (11) and the inner side of the stirring shaft (4), a connecting sleeve (9) is movably installed on the outer side of the stirring shaft (4), and a deflection gear (10) meshing with the outer teeth of the driving gear row (11) is fixedly connected to the bottom of the connecting sleeve (9), an inner support frame (15) is fixedly connected to the top of the connecting sleeve (9), and a fixed stirring paddle (6) is movably installed on the inner support frame (15).

2. The cement mortar mixing equipment for construction according to claim 1, characterized in that: There are multiple fixed stirring paddles (6), and the multiple fixed stirring paddles (6) are arranged horizontally at equal distances.

3. The cement mortar mixing equipment for construction according to claim 1, characterized in that: A switching convex head (14) is fixedly connected to the outer side of the stirring shaft (4), ejection push plates (16) are movably mounted on both sides of the inner support frame (15), a lump-breaking rod (7) is movably mounted on both sides of the fixed stirring paddle (6), and a movable spring (700) is arranged between the lump-breaking rod (7) and the fixed stirring paddle (6).

4. The cement mortar mixing equipment for construction according to claim 3, characterized in that: The switching protrusion (14) is in the shape of a rectangular parallelepiped.

5. The cement mortar mixing equipment for construction according to claim 3, characterized in that: The surface of the ejector plate (16) is inclined.

6. The cement mortar mixing equipment for construction according to claim 3, characterized in that: One end of the agglomerate breaking rod (7) is conical, and a ball is mounted on the other end. A plurality of agglomerate breaking rods (7) are arranged at equal distances on the surface of the fixed stirring paddle (6).

7. The cement mortar mixing equipment for construction according to claim 3, characterized in that: Side blocks (8) are fixedly mounted on both sides of the fixed stirring paddle (6).

8. A mixing method of cement mortar mixing equipment for construction as claimed in claim 1, characterized in that: The following steps are involved: S1. Pour in materials: Pour the sand and cement to be mixed into the mixing chamber (300) and prepare to mix them; S2, forward stirring and mixing: Starting the driving unit (2) to cause the stirring shaft (4) to rotate in the forward direction; Driven by the stirring shaft (4), the fixed stirring paddle (6) and the movable stirring paddle (500) rotate synchronously to preliminarily mix the sand and cement in the stirring chamber (300); Since the movable stirring paddle (500) is blocked by cement and gravel, its deflection angle relative to the fixed stirring paddle (6) reaches 180°, thereby ensuring a mixing effect; S3, reverse stirring, filtration and crushing: Controlling the driving unit (2) to cause the stirring shaft (4) to rotate in the reverse direction; When the movable stirring paddle (500) pushes the concrete, the limiting block (501) moves along the limiting groove (400) until the movable stirring paddle (500) and the fixed stirring paddle (6) are aligned; Driven by the stirring shaft (4), the movable stirring paddle (500) and the fixed stirring paddle (6) rotate again, and the gap between the two is used to filter the sand and gravel and agglomerated cement in the concrete; During the lifting process, the sand and gravel and the agglomerated cement move relative to each other due to the action of gravity. The collision of the sand and gravel with the agglomerated cement causes the cement agglomerates to be crushed into small particles, thus preventing the cement from agglomerating. S4, forward stirring again: The driving unit (2) drives the stirring shaft (4) to rotate in the forward direction again; The movable stirring paddle (500) and the fixed stirring paddle (6) continue to rotate under the drive of the stirring shaft (4), thereby ensuring that the cement and sand and gravel in the stirring chamber (300) are mixed more evenly; S5. Discharging: When the stirring reaches the desired effect, open the valve on the ash discharge pipe; The mixed concrete is discharged from the ash discharge pipe, completing the entire mixing and discharging process.

Images