A mortar premixing device with auxiliary circulation flow and premixing method thereof

Abstract

The present invention relates to a mortar premixing device with auxiliary circulation flow and a premixing method thereof. The mortar premixing device with auxiliary circulation flow comprises a support and a kit arranged on the support: the kit comprises a tank body installed on the support for containing materials to be mixed, a feeding piece rotatably installed in the tank body and fitted with the tank body, and an isolating cylinder movably arranged on the support. The diameters of the tank body, the feeding piece and the isolating cylinder are gradually reduced, and the inner wall of the feeding piece is provided with spiral blades. After multiple lifting and lowering, the isolating cylinder allows the materials to be transported upward layer by layer, thereby realizing the process of materials circulating upward layer by layer from the outside to the inside, so that the materials can circulate during the mixing process, and combined with the mixing mechanism, the effect of mortar premixing is greatly improved. The comprehensiveness of the premixing treatment is guaranteed through the circulation treatment of the materials, which can significantly accelerate the process of mortar premixing and improve construction efficiency.

Description

Technical Field

[0001] The invention relates to a mortar premixing device with auxiliary circulation flow and a premixing method thereof. Background Art

[0002] Mortar is an indispensable material in construction. It is a bonding material formed by adding sand, cement and water in a certain proportion and then mixing them. In actual construction, the mixing work is sometimes performed by construction workers. Construction workers usually mix sand and cement first, and then add water to stir after premixing. This operation is relatively laborious. For this reason, most construction sites will use corresponding premixing devices to realize the automatic processing of premixing.

[0003] Existing premixing devices usually have multiple stirring blades in a container, and use the high-speed rotation of the stirring blades to mix the materials. However, since the rotation height of the stirring blades in most devices is maintained unchanged, the materials between the two layers of stirring blades are difficult to be thoroughly mixed. In order to ensure the mixing effect, stirring must be continued for a long time, which reduces the efficiency of mortar production and still makes it difficult to achieve the ideal use effect. Summary of the invention

[0004] The object of the present invention is to provide a mortar premixing device with auxiliary circulation flow and a premixing method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A mortar premixing device for auxiliary circulation flow, comprising a support and a kit arranged on the support:

[0007] The kit includes a tank body mounted on the support for containing the material to be mixed, a material feeding piece rotatably mounted in the tank body and sleeved with the tank body, and an isolating cylinder movably arranged on the support, wherein the diameters of the tank body, the material feeding piece and the isolating cylinder gradually decrease, and the inner wall of the material feeding piece is provided with spiral blades;

[0008] Wherein, a mixing mechanism is provided in the tank body, the isolation cylinder is connected to a lifting mechanism provided on the support, the lifting mechanism can drive the isolation cylinder to descend into the tank body, and an annular gap is formed between the inner wall of the material feeding member and the outer wall of the isolation cylinder;

[0009] A power mechanism is installed on the support, and the power mechanism is connected to the feeding member through a transmission mechanism. The power mechanism can prompt the lifting mechanism to drive the isolation cylinder to descend, and drive the feeding member to rotate through the transmission mechanism, so that the spiral blades can transport the material in the annular gap upward.

[0010] As a further solution of the present invention: the lifting mechanism comprises a cross arm movably arranged on the support through two sets of telescopic guide structures, a transmission plate fixed to the cross arm, and a bidirectional telescopic assembly connected to the transmission plate;

[0011] The bidirectional telescopic assembly cooperates with the power mechanism, and a connecting shaft is rotatably mounted on one end of the cross arm away from the transmission plate, the isolation cylinder is mounted on the connecting shaft, and the connecting shaft is connected to the mixing mechanism.

[0012] As a further solution of the present invention: the telescopic guide structure is connected to two guide arms, and an assembly plate is slidably provided on the two guide arms, and the bidirectional telescopic assembly includes a second column and a third column movably provided on the assembly plate through two sets of elastic telescopic parts;

[0013] The assembly plate is also provided with a first column, the first column and the second column cooperate with the power mechanism, the transmission plate is provided with an inclined through slot adapted to the third column, the third column passes through the inclined through slot and is slidably connected to the transmission plate.

[0014] As a further solution of the present invention: the elastic telescopic member includes a transverse tube fixed to the assembly plate and connected at both ends, and a cross bar slidably sleeved with the transverse tube, and the second column and the third column are respectively arranged at both ends of the cross bar;

[0015] The cross bar is also fixed to a central ring body slidably arranged inside the transverse tube, and a second cylindrical spring and a third cylindrical spring are sleeved on the outer periphery of the cross bar, wherein the head ends of the second cylindrical spring and the third cylindrical spring are connected to the central ring body, and the tail ends are connected to the inner wall of the transverse tube.

[0016] As a further solution of the present invention: the power mechanism includes a guide plate movably arranged on the support, the guide plate is connected to a threaded driving member installed on the support, and the threaded driving member is connected to the transmission mechanism;

[0017] Among them, the guide plate is provided with a fifth slide groove and a rectangular groove respectively adapted to the first column and the second column, the first column and the second column extend into the fifth slide groove and the rectangular groove respectively, and are slidably connected to the guide plate, and the fifth slide groove is inclined.

[0018] As a further solution of the present invention: the threaded drive member includes a screw rod rotatably mounted on the support and connected to the transmission mechanism, a threaded sleeve sleeved on the screw rod and threadedly connected to the screw rod, and a second drive motor arranged on the support, one end of the screw rod away from the support is connected to the output end of the second drive motor, and the threaded sleeve is fixed to the guide plate.

[0019] As a further solution of the present invention: the transmission mechanism includes a first transmission member fixed to one end of the screw rod close to the support and a second transmission member movably arranged on the support and abutting against the first transmission member, the second transmission member is connected to an elastic support assembly installed on the support, and a plurality of driving teeth are equidistantly arranged on the first transmission member along the circumference;

[0020] The second transmission member is provided with a plurality of tooth grooves adapted to the driving teeth, a first plane and a second plane are formed in the tooth grooves, the first plane intersects with the central axis of the screw rod, and the central axis of the screw rod is on the second plane.

[0021] As a further solution of the present invention: a gear is rotatably mounted on the support, the gear is meshed with a gear ring fixed on the material feeding member, the elastic support assembly comprises a transmission tube rotatably mounted on the support, a telescopic shaft slidably sleeved with the transmission tube and fixed with the second transmission member, and a first cylindrical spring arranged in the transmission tube, the transmission tube is connected to the rotating shaft of the gear through a second transmission belt;

[0022] The two ends of the first cylindrical spring are respectively connected to the inner wall of the transmission tube and the end of the telescopic shaft away from the second transmission member, and a transmission protrusion is formed on the outer wall of the telescopic shaft. The transmission tube is provided with a transmission groove for the transmission protrusion to move.

[0023] A mortar premixing method, using the auxiliary circulation flow mortar premixing device, comprising the following steps;

[0024] Step 1: Add sand and cement into the tank, and the mixing mechanism mixes the added materials;

[0025] Step 2: The power mechanism works forward and reverse alternately;

[0026] Step 3: After the power mechanism finishes working in the forward direction, the lifting mechanism drives the isolation cylinder to descend, so that an annular gap is formed in the tank body;

[0027] Step 4: The power mechanism works in the reverse direction, driving the material conveying member to rotate through the transmission mechanism, and the material conveying member uses the spiral blades to convey the material in the annular gap upward;

[0028] Step 5: After the power mechanism works forward and reverse multiple times alternately, the material in the tank body circulates upward layer by layer from the outside to the inside.

[0029] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a novel design, when in use, after the isolation cylinder is lowered, an annular gap can be formed between the outer wall of the isolation cylinder and the inner wall of the material feeding member, and as the material feeding member rotates, the material feeding member can transport the material upward through the spiral blades, and the material can be in the isolation cylinder, that is, reach the upper end surface of the material;

[0030] In summary, after the isolation cylinder has been lifted and lowered many times, the material is transported upward layer by layer, thereby realizing the process of material circulation from the outside to the inside layer by layer, allowing the material to circulate during the mixing process. Combined with the mixing mechanism, the effect of mortar premixing is greatly improved. The comprehensiveness of the premixing treatment is guaranteed through the circulation treatment of the material, which can significantly speed up the process of mortar premixing and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 An axonometric view of an embodiment of a mortar premixing device for auxiliary circulation flow.

[0032] Figure 2 A schematic structural diagram of an embodiment of a mortar premixing device with auxiliary circulation flow.

[0033] Figure 3 A schematic structural diagram of another angle of an embodiment of a mortar premixing device with auxiliary circulation flow.

[0034] Figure 4 A schematic structural diagram of another angle of an embodiment of a mortar premixing device for auxiliary circulation flow.

[0035] Figure 5 A cross-sectional view of a kit in one embodiment of a mortar premixing device for auxiliary circulation flow.

[0036] Figure 6 A schematic diagram of the structure of a mixing mechanism in an embodiment of a mortar premixing device with auxiliary circulation flow.

[0037] Figure 7 A structural exploded diagram of a telescopic guide structure in an embodiment of a mortar premixing device for auxiliary circulation flow.

[0038] Figure 8 for Figure 7 A magnified view of the structure at center.

[0039] Fig. 9 An exploded view of the structure of a bidirectional telescopic component in an embodiment of a mortar premixing device for auxiliary circulation flow.

[0040] In the figure: 1, support; 2, tank body; 3, feeding member; 4, isolation cylinder; 401, feeding port; 5, spiral blade; 6, vertical pipe; 7, connecting shaft; 8, first driving motor; 9, first transmission belt; 10, second driving motor; 11, screw rod; 12, threaded sleeve; 13, second transmission belt; 14, gear; 15, gear ring; 16, first transmission member; 17, second transmission member; 18, first cylindrical spring; 19, transmission pipe; 1901, transmission groove; 20, telescopic shaft; 2001, transmission protrusion; 2 1. Guide plate; 22. Support plate; 23. Cross arm; 24. Transmission plate; 2401. Inclined through slot; 25. Guide arm; 26. Assembly plate; 27. Guide plate; 2701. First slide slot; 2702. Second slide slot; 2703. Third slide slot; 2704. Fourth slide slot; 2705. Fifth slide slot; 28. Centering ring; 29. ​​Horizontal cylinder; 30. Cross bar; 31. First column; 32. Second column; 33. Third column; 34. Second cylindrical spring; 35. Third cylindrical spring. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0043] See also Figure 1-Figure 9 In an embodiment of the present invention, a mortar premixing device with auxiliary circulation flow includes a support 1 and a set of components arranged on the support 1: the set of components includes a tank body 2 installed on the support 1 for containing materials to be mixed, a material feeding member 3 rotatably installed in the tank body 2 and sleeved with the tank body 2, and an isolating cylinder 4 movably arranged on the support 1, wherein the diameters of the tank body 2, the material feeding member 3 and the isolating cylinder 4 are gradually reduced, and the inner wall of the material feeding member 3 is provided with a spiral blade 5;

[0044] The tank body 2 is provided with a mixing mechanism, the isolation cylinder 4 is connected to a lifting mechanism provided on the support 1, and the lifting mechanism can drive the isolation cylinder 4 to descend into the tank body 2, and an annular gap is formed between the inner wall of the feeding member 3 and the outer wall of the isolation cylinder 4;

[0045] A power mechanism is installed on the support 1, and the power mechanism is connected to the feed member 3 through a transmission mechanism. The power mechanism can prompt the lifting mechanism to drive the isolation cylinder 4 to descend, and drive the feed member 3 to rotate through the transmission mechanism, so that the spiral blade 5 can transport the material in the annular gap upward.

[0046] It should be noted that when the material feeding member 3 rotates, the spiral blade 5 can transport the material in the annular gap upward, and the conveying principle is the same as that of the auger conveyor, which will not be described in detail in this application;

[0047] Secondly, during the specific implementation, the bottom of the tank body 2 is also provided with an openable and closable discharge port. After the premixing of the material is completed, the staff opens the discharge port to facilitate the material to be discharged to other mixing equipment, and water is added to mix to form mortar.

[0048] In addition, further, the bottom of the isolation cylinder 4 is a conductive setting, and the top is provided with a plurality of feed ports 401 equidistantly along the circumference. When the device is in use, the amount of sand and cement added to the tank body 2 needs to be controlled, and excessive amounts should be avoided. It is necessary to ensure that after the isolation cylinder 4 is lowered, there is a certain gap between the upper end surface of the material and the top wall of the isolation cylinder 4, so that when the annular gap is formed, as the feeding member 3 rotates, the material is transported upward, and the material can enter the isolation cylinder 4, that is, reach the upper end surface of the material;

[0049] In summary, after being lifted and lowered many times, the isolation cylinder 4 allows the material to be transported upward layer by layer, thereby realizing the process of material circulating upward layer by layer from the outside to the inside, allowing the material to circulate during the mixing process, and combined with the mixing mechanism, the effect of mortar premixing is greatly improved. The comprehensiveness of the premixing treatment is guaranteed through the circulation treatment of the material, which can significantly speed up the process of mortar premixing and improve construction efficiency.

[0050] Please refer again Figure 2 , Figure 3 , Figure 7 as well as Fig. 9 The lifting mechanism includes a cross arm 23 movably arranged on the support 1 through two sets of telescopic guide structures, a transmission plate 24 fixed to the cross arm 23, and a bidirectional telescopic component connected to the transmission plate 24;

[0051] Specifically, the telescopic guide structure includes a guide plate 21 mounted on the support 1 and a support plate 22 slidably fitted with the guide plate 21 , and the cross arm 23 is located between the two support plates 22 and fixed to the two support plates 22 .

[0052] The bidirectional telescopic assembly cooperates with the power mechanism, and a connecting shaft 7 is rotatably mounted on one end of the cross arm 23 away from the transmission plate 24, the isolation cylinder 4 is mounted on the connecting shaft 7, and the connecting shaft 7 is connected to the mixing mechanism.

[0053] In detail, the mixing mechanism includes a vertical tube 6 rotatably mounted in the tank body 2 and a plurality of stirring blades arranged on the outer periphery of the vertical tube 6. It should be noted that the length of the stirring blades is smaller than the radius of the isolation cylinder 4 to avoid interference between the isolation cylinder 4 and the stirring blades when the isolation cylinder 4 descends. A first drive motor 8 is also mounted on the support 1, and the output shaft of the first drive motor 8 is connected to the vertical tube 6 via a first transmission belt 9.

[0054] Secondly, the connecting shaft 7 and the vertical tube 6 are slidably fitted, and two strip-shaped protrusions (not numbered in the figure) are formed on the outer wall of the connecting shaft 7, and two strip-shaped grooves (not numbered in the figure) adapted to the strip-shaped protrusions are provided on the inner wall of the vertical tube 6. When the two-way telescopic assembly drives the cross arm 23 to descend through the transmission plate 24, that is, the isolation cylinder 4 enters the tank body 2, the connecting shaft 7 slides downward in the vertical tube 6 accordingly;

[0055] The purpose of arranging the connecting shaft 7 between the isolation cylinder 4 and the vertical pipe 6 is:

[0056] When the first driving motor 8 is working, its output shaft drives the vertical tube 6 to rotate through the first transmission belt 9, so that the stirring blades can mix the materials. At the same time, the vertical tube 6 drives the connecting shaft 7 and the isolation cylinder 4 to rotate through the strip grooves and the strip protrusions. Therefore, the isolation cylinder 4 can keep rotating during the descent process, which can ensure the smoothness of the isolation cylinder 4 inserted into the material. Furthermore, the bottom edge of the isolation cylinder 4 is polished into a pointed end.

[0057] The telescopic guide structure is connected to two guide arms 25 (specifically, the two guide arms 25 are fixed to the guide plate 21), and an assembly plate 26 is slidably provided on the two guide arms 25, and the bidirectional telescopic component includes a second column 32 and a third column 33 movably provided on the assembly plate 26 through two groups of elastic telescopic parts; a first column 31 is also provided on the assembly plate 26, and the first column 31 and the second column 32 cooperate with the power mechanism, and an inclined through groove 2401 adapted to the third column 33 is provided on the transmission plate 24, and the third column 33 passes through the inclined through groove 2401 and is slidably connected to the transmission plate 24.

[0058] The elastic telescopic member includes a transverse tube 29 fixed on the assembly plate 26 and connected at both ends, and a transverse rod 30 slidably fitted with the transverse tube 29, the second column 32 and the third column 33 are respectively arranged at the two ends of the transverse rod 30; the transverse rod 30 is also fixed to the center ring body 28 slidably arranged inside the transverse tube 29, and the outer periphery of the transverse rod 30 is sleeved with a second columnar spring 34 and a third columnar spring 35, the head ends of the second columnar spring 34 and the third columnar spring 35 are connected to the center ring body 28, and the tail ends are connected to the inner wall of the transverse tube 29.

[0059] The power mechanism includes a guide plate 27 movably arranged on the support 1, the guide plate 27 is connected to a threaded driving member installed on the support 1, and the threaded driving member is connected to the transmission mechanism; the guide plate 27 is provided with a fifth slide groove 2705 and a rectangular groove respectively adapted to the first column 31 and the second column 32, the first column 31 and the second column 32 extend into the fifth slide groove 2705 and the rectangular groove respectively, and are slidably connected to the guide plate 27, and the fifth slide groove 2705 is inclined.

[0060] In order to facilitate the description of the movement process of each component, the rectangular groove is specifically divided into a first sliding groove 2701, a second sliding groove 2702, a third sliding groove 2703 and a fourth sliding groove 2704, which are connected to form the rectangular groove.

[0061] During operation, the threaded drive member can drive the guide plate member 27 to move up and down. Taking the state shown in the figure as the starting point, at this time, the isolation cylinder 4 is in an upward state, and the second column 32 is located at the connection between the first slide groove 2701 and the fourth slide groove 2704;

[0062] The threaded drive member works in the forward direction to drive the guide plate 27 to descend. During this process, the first column 31 slides with the guide plate 27 through the fifth slide groove 2705, and the second column 32 is in the first slide groove 2701. Accordingly, the first column 31 causes the assembly plate 26 to slide and give way on the two guide arms 25 close to the tank 2, and the second column spring 34 is compressed.

[0063] When the guide plate 27 drops to the lowest point, the second column 32 corresponds to the connection between the first slide groove 2701 and the second slide groove 2702, so that the second column spring 34 rebounds, which prompts the cross bar 30 to slide on the horizontal cylinder 29 close to the tank body 2, and the second column 32 corresponds to the connection between the second slide groove 2702 and the third slide groove 2703. The third column 33 slides with the transmission plate 24 through the inclined through groove 2401, prompting the transmission plate 24 to drive the cross arm 23 to move downward, and the isolation cylinder 4 enters the tank body 2, forming the annular gap in the tank body 2;

[0064] Subsequently, the threaded drive member works in the reverse direction, and the threaded drive member can drive the material feeding member 3 to rotate through the transmission mechanism, so that the material in the annular gap is transported upward by the spiral blade 5. At the same time, the guide plate 27 rises, and the first column 31 slides with the guide plate 27 again, so that the assembly plate 26 drives the horizontal cylinder 29 to move away from the tank body 2 and reset, and the second column 32 is in the third slide groove 2703, and the third column spring 35 is compressed;

[0065] After the guide plate 27 completes the rising and resetting, the second column 32 corresponds to the connection between the third slide groove 2703 and the fourth slide groove 2704, and then the third column spring 35 rebounds, causing the cross bar 30 to slide away from the tank body 2 on the horizontal cylinder 29, and the second column 32 corresponds to the connection between the first slide groove 2701 and the fourth slide groove 2704 again, and the third column 33 slides with the transmission plate 24 again, so that the transmission plate 24 and the cross arm 23 move up, and the isolation cylinder 4 is pulled out of the tank body 2.

[0066] Please refer again Figure 3The threaded driving member includes a screw rod 11 rotatably mounted on the support 1 and connected to the transmission mechanism, a threaded sleeve 12 sleeved on the screw rod 11 and threadedly connected to the screw rod 11, and a second driving motor 10 arranged on the support 1, one end of the screw rod 11 away from the support 1 is connected to the output end of the second driving motor 10, and the threaded sleeve 12 is fixed to the guide plate 27.

[0067] Furthermore, the second drive motor 10 is a servo motor with a bidirectional drive output end, so as to drive the screw rod 11 to rotate forward and reverse during operation, thereby realizing the function of lifting and lowering the guide plate 27;

[0068] Secondly, in order to ensure the stability of the threaded cooperation between the threaded sleeve 12 and the screw rod 11, a vertical rod (not numbered in the figure) is also provided on the support 1, and a guide sleeve (not numbered in the figure) is provided on the guide plate 27, and the guide sleeve is slidably connected to the vertical rod.

[0069] It should be emphasized that in order to ensure that the material in the annular gap can be smoothly conveyed upward, the rotation of the feed piece 3 and the isolation cylinder 4 should be opposite. Secondly, if the feed piece 3 is directly driven to rotate by the screw rod 11, the feed piece 3 is in forward and reverse directions when the annular gap is formed and not formed, respectively. When the annular gap is not formed, the feed piece 3 may convey the outer layer of the material downward. In this way, it is difficult to ensure the comprehensiveness of the overall circulation of the material. Therefore, the transmission mechanism is provided between the feed piece 3 and the screw rod 11 to ensure that the feed piece 3 does not rotate when the annular gap is not formed.

[0070] Please refer again Figure 2 , Figure 7 as well as Figure 8 The transmission mechanism includes a first transmission member 16 fixed to one end of the screw rod 11 close to the support 1 and a second transmission member 17 movably arranged on the support 1 and abutting against the first transmission member 16. The second transmission member 17 is connected to an elastic support assembly installed on the support 1. A plurality of driving teeth are equidistantly arranged on the first transmission member 16 along the circumference. The second transmission member 17 is provided with a plurality of tooth grooves adapted to the driving teeth, and a first plane and a second plane are formed in the tooth grooves. The first plane intersects with the central axis of the screw rod 11, and the central axis of the screw rod 11 is on the second plane.

[0071] The support 1 is also rotatably mounted with a gear 14, the gear 14 meshes with a gear ring 15 fixed on the feed member 3, the elastic support assembly comprises a transmission tube 19 rotatably mounted on the support 1, a telescopic shaft 20 slidably sleeved with the transmission tube 19 and fixed with the second transmission member 17, and a first cylindrical spring 18 arranged in the transmission tube 19, the transmission tube 19 is connected to the rotation axis of the gear 14 through a second transmission belt 13;

[0072] The two ends of the first cylindrical spring 18 are respectively connected to the inner wall of the transmission tube 19 and the end of the telescopic shaft 20 away from the second transmission member 17, and the outer wall of the telescopic shaft 20 is formed with a transmission protrusion 2001, and the transmission tube 19 is provided with a transmission groove 1901 for the movement of the transmission protrusion 2001.

[0073] The second driving motor 10 drives the screw rod 11 to rotate forwardly, so that the guide plate 27 descends. At this time, the annular gap has not yet been formed. The driving teeth on the first transmission member 16 apply force to the first plane during the rotation. Since the first plane intersects with the central axis of the screw rod 11 and the load connected to the transmission tube 19 is relatively large, the second transmission member 17 gives way, and the telescopic shaft 20 reciprocates in the transmission tube 19. The first cylindrical spring 18 reciprocates in compression and rebound, and the second transmission member 17, the telescopic shaft 20, the transmission tube 19 and the feed member 3 do not rotate.

[0074] On the contrary, when the screw rod 11 rotates in the opposite direction, that is, the guide plate 27 is in the ascending process, the annular gap has been formed at this time, and the driving teeth on the first transmission member 16 act on the second plane during the rotation process. Since the central axis of the screw rod 11 is on the second plane, the second transmission member 17 rotates, and then the telescopic shaft 20 drives the transmission tube 19 to rotate through the transmission protrusion 2001 and the transmission groove 1901, and the transmission tube 19 drives the gear 14 to rotate through the second transmission belt 13, and the gear 14 drives the feeding member 3 to rotate through the gear ring 15, so that the material in the annular gap is transported upward.

[0075] As another embodiment of the present invention, a mortar premixing method is also proposed, using the auxiliary circulation flow mortar premixing device, comprising the following steps;

[0076] Step 1: Add sand and cement into the tank 2, and the mixing mechanism mixes the added materials;

[0077] Step 2: The power mechanism works forward and reverse alternately;

[0078] Step 3: After the power mechanism finishes working in the forward direction, the lifting mechanism drives the isolation cylinder 4 to descend, so that an annular gap is formed in the tank body 2;

[0079] Step 4: The power mechanism works in the reverse direction, driving the material feeding member 3 to rotate through the transmission mechanism, and the material feeding member 3 uses the spiral blades 5 to transport the material in the annular gap upward;

[0080] Step 5: After the power mechanism works forward and reverse multiple times alternately, the material in the tank body 2 circulates upward layer by layer from the outside to the inside.

[0081] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0082] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mortar premixing device for auxiliary circulation flow, comprising a support (1) and a kit arranged on the support (1); The kit comprises a tank body (2) mounted on the support (1) for containing the material to be mixed, a material feeding member (3) rotatably mounted in the tank body (2) and sleeved with the tank body (2), and an isolating cylinder (4) movably arranged on the support (1), wherein the diameters of the tank body (2), the material feeding member (3) and the isolating cylinder (4) gradually decrease, and the inner wall of the material feeding member (3) is provided with a spiral blade (5); It is characterized in that The tank body (2) is provided with a mixing mechanism, the isolation cylinder (4) is connected to a lifting mechanism provided on the support (1), the lifting mechanism can drive the isolation cylinder (4) to descend into the tank body (2), and an annular gap is formed between the inner wall of the material conveying member (3) and the outer wall of the isolation cylinder (4); A power mechanism is mounted on the support (1), and the power mechanism is connected to the material conveying member (3) via a transmission mechanism. The power mechanism can prompt the lifting mechanism to drive the isolation cylinder (4) downward, and drive the material conveying member (3) to rotate via the transmission mechanism, so that the spiral blade (5) conveys the material in the annular gap upward; The lifting mechanism comprises a cross arm (23) movably arranged on the support (1) via two sets of telescopic guide structures, a transmission plate (24) fixed to the cross arm (23), and a bidirectional telescopic component connected to the transmission plate (24); The bidirectional telescopic assembly cooperates with the power mechanism, and a connecting shaft (7) is rotatably mounted on one end of the cross arm (23) away from the transmission plate (24), the isolation cylinder (4) is mounted on the connecting shaft (7), and the connecting shaft (7) is connected to the mixing mechanism.

2. A mortar premixing device with auxiliary circulation flow according to claim 1, characterized in that: The telescopic guide structure is connected to two guide arms (25), and an assembly plate (26) is slidably provided on the two guide arms (25), and the bidirectional telescopic assembly comprises a second column (32) and a third column (33) movably provided on the assembly plate (26) via two groups of elastic telescopic parts; The assembly plate (26) is also provided with a first column (31), the first column (31) and the second column (32) cooperate with the power mechanism, the transmission plate (24) is provided with an inclined through slot (2401) adapted to the third column (33), the third column (33) passes through the inclined through slot (2401) and is slidably connected to the transmission plate (24).

3. The mortar premixing device with auxiliary circulation flow according to claim 2, characterized in that: The elastic telescopic member comprises a transverse tube (29) fixed on the assembly plate (26) and having two ends connected thereto, and a transverse rod (30) slidably fitted with the transverse tube (29), and the second column (32) and the third column (33) are respectively arranged at two ends of the transverse rod (30); The cross bar (30) is also fixed to a center ring body (28) slidably arranged inside the transverse tube (29), and a second columnar spring (34) and a third columnar spring (35) are sleeved on the outer periphery of the cross bar (30), wherein the head ends of the second columnar spring (34) and the third columnar spring (35) are connected to the center ring body (28), and the tail ends are connected to the inner wall of the transverse tube (29).

4. The mortar premixing device with auxiliary circulation flow according to claim 3, characterized in that: The power mechanism comprises a guide plate (27) movably arranged on the support (1), the guide plate (27) being connected to a threaded driving member mounted on the support (1), and the threaded driving member being connected to the transmission mechanism; The guide plate (27) is provided with a fifth slide groove (2705) and a rectangular groove respectively adapted to the first column (31) and the second column (32); the first column (31) and the second column (32) respectively extend into the fifth slide groove (2705) and the rectangular groove and are slidably connected to the guide plate (27); the fifth slide groove (2705) is inclined.

5. The mortar premixing device with auxiliary circulation flow according to claim 4, characterized in that: The threaded drive member comprises a screw rod (11) rotatably mounted on the support (1) and connected to the transmission mechanism, a threaded sleeve (12) sleeved on the screw rod (11) and threadedly connected to the screw rod (11), and a second drive motor (10) disposed on the support (1), one end of the screw rod (11) away from the support (1) being connected to an output end of the second drive motor (10), and the threaded sleeve (12) being fixed to the guide plate (27).

6. The mortar premixing device with auxiliary circulation flow according to claim 5, characterized in that: The transmission mechanism comprises a first transmission member (16) fixed to one end of the screw rod (11) close to the support (1), and a second transmission member (17) movably arranged on the support (1) and abutting against the first transmission member (16), the second transmission member (17) being connected to an elastic support component mounted on the support (1), and a plurality of driving teeth being equidistantly arranged on the first transmission member (16) along a circumference; The second transmission member (17) is provided with a plurality of tooth grooves adapted to the driving teeth, a first plane and a second plane are formed in the tooth grooves, the first plane intersects with the central axis of the screw rod (11), and the central axis of the screw rod (11) is on the second plane.

7. The mortar premixing device with auxiliary circulation flow according to claim 6, characterized in that: A gear (14) is also rotatably mounted on the support (1), the gear (14) meshing with a gear ring (15) fixed on the material feeding member (3), the elastic support assembly comprising a transmission tube (19) rotatably mounted on the support (1), a telescopic shaft (20) slidably sleeved with the transmission tube (19) and fixed to the second transmission member (17), and a first cylindrical spring (18) arranged in the transmission tube (19), the transmission tube (19) being connected to the rotation shaft of the gear (14) via a second transmission belt (13); The two ends of the first columnar spring (18) are respectively connected to the inner wall of the transmission tube (19) and one end of the telescopic shaft (20) away from the second transmission member (17), and a transmission protrusion (2001) is formed on the outer wall of the telescopic shaft (20), and a transmission groove (1901) for the transmission protrusion (2001) to move is provided on the transmission tube (19).

8. A mortar premixing method, using the mortar premixing device with auxiliary circulation flow as claimed in claim 1, characterized in that: The following steps are involved: Step 1: Add sand and cement into the tank (2), and the mixing mechanism mixes the added materials; Step 2: The power mechanism works forward and reverse alternately; Step 3: After the forward operation of the power mechanism is completed, the lifting mechanism drives the isolation cylinder (4) to descend, so that an annular gap is formed in the tank body (2); Step 4: the power mechanism works in the reverse direction, driving the material conveying member (3) to rotate through the transmission mechanism, and the material conveying member (3) uses the spiral blades (5) to convey the material in the annular gap upward; Step 5: After the power mechanism works forward and reverse multiple times alternately, the material in the tank body (2) circulates upward layer by layer from the outside to the inside.

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