High-strength dry-mixed mortar filling equipment

Abstract

The invention relates to high-strength dry-mixed mortar filling equipment. The quantitative material taking device comprises a hopper, a quantitative material taking mechanism and a filling head, the quantitative material taking mechanism comprises a shell, a first motor and a rotor, a rotor containing cavity, a feeding cavity and a discharging cavity are formed in the shell, the rotor is horizontally and rotationally arranged in the rotor containing cavity, and the first motor is fixed to the outer side of the shell and connected with a rotor shaft; the outer diameter of the rotor is matched with the inner diameter of the rotor containing cavity, a plurality of quantitative grooves are formed in the circumferential outer wall of the rotor in a circumferential array mode, outward turning pieces are further arranged in the quantitative grooves, the outward turning pieces are in pivot joint with one sides of groove openings of the quantitative grooves, and the outward turning pieces can be turned inwards to be attached to the inner walls of the quantitative grooves. According to the invention, the outward turning sheet capable of turning downwards by gravity is arranged in the quantitative groove to ensure that dry-mixed mortar in the quantitative groove can be completely discharged every time, so that reliable filling precision is realized.

Description

Technical Field

[0001] The invention relates to a powder filling device, in particular to a high-strength dry-mix mortar filling device. Background Art

[0002] Dry-mixed mortar is a mixture of cement as the main binder, dry and screened fine aggregate, mineral admixtures, and admixtures in a certain proportion. It is usually transported to the construction site in bags or bulk and can be used directly after adding water and mixing.

[0003] The production process generally includes: raw material preparation, the main raw materials include cement, quartz sand (or river sand after drying and screening), polymer powder, additives, etc., according to production needs; ingredient metering, using precise full electronic scales and advanced microcomputer control for ingredient metering; mixing and stirring, sending the weighed raw materials into the mixer for uniform mixing; powder filling, using quantitative filling equipment to put the evenly mixed powder into the package.

[0004] In the powder filling process, the filling accuracy of the quantitative filling equipment directly determines the deviation between the actual weight of the dry-mixed mortar product and the set weight. There is a patent for quantitative filling of powder products, named a powder measuring device (publication number: CN104401514A), which includes a hopper, a valve body, a rotating shaft and a cylindrical drum. The middle of the valve body is provided with a through hole for inserting the drum, and the outer wall of the drum fits the through hole. The two sides of the valve body are respectively provided with a feed port and a discharge port connected to the through hole. One side of the valve body feed port is connected to the bottom of the hopper. The rotating shaft is coaxially connected to the drum, and the drum is provided with multiple powder cavities along the radial direction. The powder measuring device can quickly measure quantitative powder and save filling time. During the rotation of the drum, the powder cavity on it can quantitatively transfer the powder from the feed port to the discharge port, and then use the weight of the powder to fall from the powder cavity. However, in actual use, due to the negative pressure effect and the adhesion of the powder, it is difficult to ensure that the powder in the powder chamber can fall off completely every time only by its own weight. Once some powder is still adhered to the powder chamber, the amount of filling will be deviated, which will make the actual filling accuracy of the powder measuring device unable to be guaranteed. Summary of the invention

[0005] The invention provides a high-strength dry-mix mortar filling device, which solves the problem in the prior art that the powder in the powder cavity cannot be guaranteed to fall off completely every time, resulting in unreliable filling accuracy.

[0006] The above technical problems of the present invention are mainly solved by the following technical solutions: a high-strength dry-powder mortar filling equipment, including a hopper, a quantitative material taking mechanism and a filling head, the quantitative material taking mechanism includes a shell, a first motor and a rotor, a rotor accommodating chamber, a feeding chamber and a discharging chamber are formed in the shell, the feeding chamber is communicated with the upper side of the rotor accommodating chamber, the discharging chamber is communicated with the lower side of the rotor accommodating chamber, the rotor is horizontally rotatable and arranged in the rotor accommodating chamber, the first motor is fixed to the outside of the shell and connected to the rotor shaft; the outer diameter of the rotor is adapted to the inner diameter of the rotor accommodating chamber, and the rotor There are a number of quantitative grooves in a circular array on the circumferential outer wall of the rotor, and an outward-turning sheet is also provided in the quantitative groove. The outward-turning sheet is pivotally connected to one side of the groove of the quantitative groove, and the outward-turning sheet can be turned inward to fit the inner wall of the quantitative groove; when any quantitative groove rotates into the discharge cavity with the rotor, the corresponding outward-turning sheet will turn outward autonomously due to the action of gravity, and the outward-turned outward-turning sheet will be physically constrained by the inner wall of the rotor accommodating cavity during the subsequent rotation process and can be reset and retracted into the corresponding quantitative groove; when any quantitative groove rotates close to the feed cavity area with the rotor, the corresponding outward-turning sheet will completely fit the inner wall of the corresponding quantitative groove autonomously due to the action of gravity.

[0007] The hopper is used for filling dry-mix mortar, and its lower end is connected with the feeding chamber. The present invention utilizes the first motor to drive the rotor to rotate, thereby driving the quantitative slot thereon to rotate synchronously. During the reciprocating rotation of the quantitative slot, the dry-mix mortar in the feeding chamber can be quantitatively transferred to the discharging chamber. When the quantitative slot enters the discharging chamber, the outer flap and the dry-mix mortar fall downward at the same time due to their own weight. The outer flap was originally located between the dry-mix mortar and the inner wall of the quantitative slot. Therefore, after the outer flap is turned outward, it can be ensured that there is no dry-mix mortar attached to the quantitative slot. The outer flap will produce violent shaking during the outer flap turning process, and it can also be ensured that no dry-mix mortar is obviously attached to it. Then, as the rotor continues to rotate, the outer flap will be turned outward and reset inward due to the physical collision of the inner wall of the rotor accommodating chamber when it rotates into the rotor accommodating chamber. And as it continues to rotate, the outer flap will remain in contact with the quantitative slot due to the effect of its own weight, and then enter the feeding chamber again to fill the dry-mix mortar.

[0008] Furthermore, the rotor is provided with an air pressure communication hole that passes through the covering area and the circumferential outer wall of the rotor. The outer flap is adapted to the inner wall contour of the quantitative groove, and the lengths of the two are consistent, and both ends of the two are in contact with the two sides of the rotor accommodating cavity. Therefore, when the quantitative groove is filled with dry mortar, the outer flap and the quantitative groove are not connected to the external gas, and the negative pressure will hinder the free fall and flip of the outer flap. By providing the air pressure communication hole, the area between the outer flap and the quantitative groove can be connected to the discharge cavity. After the air pressure is balanced, the outer flap can flip down more smoothly.

[0009] Furthermore, the housing is provided with an air inlet and an exhaust passage that penetrate the rotor accommodating chamber, the air inlet end of the air inlet is connected to an air pump, and the exhaust end of the air inlet and the air inlet end of the exhaust are located on the moving path of the quantitative slot from the discharge chamber to the feed chamber. The airflow blown by the air pump can be blown into the quantitative slot passing through the area through the air inlet, so as to blow away the dust remaining in the quantitative slot, and to ensure that there is no dust remaining in the area between the outer flap and the quantitative slot, so that the outer flap can be turned over to completely fit with the quantitative slot, ensuring the accuracy of the subsequent quantitative filling of the dry mortar.

[0010] Furthermore, a plurality of screws are provided in the hopper, and a second motor for driving the screws to rotate is provided outside the hopper. During the filling process of the present invention, the second motor also runs synchronously to drive the screws to rotate, and the rotating screws can loosen and break up the dry mortar, which can effectively reduce the agglomeration of the powder and improve the fluidity of the powder.

[0011] Therefore, compared with the prior art, the present invention has the following characteristics: 1. The present invention ensures that the dry powder mortar in the quantitative groove can be completely discharged each time by arranging an outer flap that can be flipped down by gravity in the quantitative groove, so as to achieve reliable filling accuracy; 2. By arranging an air pressure connecting hole, the area between the outer flap and the quantitative groove can be connected to the discharge chamber, and after the air pressure is balanced, the outer flap can flip down more smoothly; 3. A plurality of screws are arranged in the hopper, and the rotating screws can loosen and break up the dry powder mortar, which can effectively reduce the phenomenon of powder agglomeration and improve the fluidity of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0013] Attached Figure 2 Yes Figure 1 Side view of

[0014] Attached Figure 3 It is a schematic diagram of the structure of the rotor;

[0015] Attached Figure 4 This is a positional relationship diagram of the air inlet, exhaust and air pump on the shell. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0018] Example 1: See Figure 1 , Figure 2 and Figure 3 A high-strength dry mortar filling device includes a hopper 100, a quantitative material taking mechanism 200 and a filling head 300. The quantitative material taking mechanism includes a housing 10, a reduction box 21, a first motor 20 and a rotor 30. A rotor accommodating chamber 11, a feeding chamber 12 and a discharging chamber 13 are formed in the housing. The feeding chamber is communicated with the upper side of the rotor accommodating chamber, and the discharging chamber is communicated with the lower side of the rotor accommodating chamber. The rotor is arranged in the rotor accommodating chamber for horizontal rotation. The first motor is fixed to the outer side of the housing and is connected to the rotor shaft through the reduction box. The outer diameter of the rotor is adapted to the inner diameter of the rotor accommodating chamber. There are 6 metering grooves 40 in a circular array on the circumferential outer wall, and an outward-turning piece 50 is also provided in the metering groove. The outward-turning piece is pivotally connected to one side of the groove of the metering groove, and the outward-turning piece can be turned inward to fit the inner wall of the metering groove; when any metering groove rotates with the rotor into the discharge cavity, the corresponding outward-turning piece will turn outward autonomously due to the action of gravity, and the outward-turned outward-turning piece will be physically constrained by the inner wall of the rotor accommodating cavity during the subsequent rotation process, and can be reset and retracted into the corresponding metering groove; when any metering groove rotates with the rotor to a region close to the feed cavity, the corresponding outward-turning piece will completely fit the inner wall of the corresponding metering groove autonomously due to the action of gravity.

[0019] The hopper is used to load dry-mix mortar, and its lower end is connected to the feed chamber. In this embodiment, the first motor is used to drive the rotor to rotate, thereby driving the quantitative slot thereon to rotate synchronously. During the reciprocating rotation of the quantitative slot, the dry-mix mortar in the feed chamber can be quantitatively transferred to the discharge chamber. When the quantitative slot enters the discharge chamber, the outer flap and the dry-mix mortar fall downward at the same time due to their own weight. The outer flap was originally located between the dry-mix mortar and the inner wall of the quantitative slot. Therefore, after the outer flap is turned outward, it can be ensured that there is no dry-mix mortar attached to the quantitative slot. The outer flap will produce violent shaking during the outer flap, and it can also be ensured that no dry-mix mortar is obviously attached to it. Then, as the rotor continues to rotate, the outer flap will be turned outward and reset inward due to the physical collision of the inner wall of the rotor accommodating chamber when it rotates into the rotor accommodating chamber. As the rotation continues, the outer flap will remain in contact with the quantitative slot due to the effect of its own weight, and then enter the feed chamber again to load the dry-mix mortar.

[0020] See Figure 3 The inner wall of the quantitative groove is divided into a covered area 41 covered by the outer flap and an uncovered exposed area 42. The contour of the exposed area is an arc, the center of which is the pivot axis of the outer flap, and the outer end of the outer flap fits the exposed area. In this way, during the outer flap is turned outward, the outer end of the outer flap can scrape the exposed area, which can significantly reduce the phenomenon of powder adhesion on the inner wall of the quantitative groove.

[0021] See Figure 3 The rotor is also provided with an air pressure communication hole 31 that penetrates the covering area and the outer circumferential wall of the rotor. The outer flap is adapted to the inner wall contour of the quantitative groove, and the lengths of the two are consistent. Both ends of the two fit the two sides of the rotor accommodating cavity. Therefore, when the quantitative groove is filled with dry mortar, the outer flap and the quantitative groove are not connected to the external gas, and the negative pressure will hinder the free fall and flip of the outer flap. By setting the air pressure communication hole, the area between the outer flap and the quantitative groove can be connected to the discharge cavity. After the air pressure is balanced, the outer flap can flip down more smoothly.

[0022] See Figure 4 The housing is provided with an air inlet 14 and an exhaust 15 which penetrate the rotor accommodating cavity. The air inlet end of the air inlet is connected to an air pump 16. The exhaust end of the air inlet and the air inlet end of the exhaust are located on the moving path of the quantitative slot from the discharge cavity to the feed cavity. The airflow blown by the air pump can be blown into the quantitative slot passing through the area through the air inlet to blow away the dust remaining in the quantitative slot and ensure that there is no dust remaining in the area between the outer flap and the quantitative slot, so that the outer flap can be turned over to fit completely with the quantitative slot to ensure the accuracy of subsequent quantitative filling of dry mortar.

[0023] See Figure 1 The feeding cavity is distributed toward one side of the rotor rotation direction. This arrangement is to ensure that the outer flap inside the quantitative groove is completely fitted and reset with the quantitative groove before the quantitative groove enters the feeding cavity.

[0024] See Figure 1 Three screws 110 are arranged in the hopper, and a pulley assembly 111 is connected between the screws. A second motor 120 for driving the screws to rotate is arranged outside the hopper. During the filling process of this embodiment, the second motor also runs synchronously to drive the screws to rotate. The rotating screws can loosen and break up the dry powder mortar, which can effectively reduce the phenomenon of powder agglomeration and improve the fluidity of the powder.

[0025] The present invention can be modified in various ways which are obvious to those skilled in the art, and such modifications are not considered to depart from the scope of the present invention. All such modifications which are obvious to those skilled in the art are intended to be included within the scope of the present claims.

Claims

1. A high-strength dry mortar filling device, comprising a hopper, a quantitative material taking mechanism and a filling head, characterized in that: The quantitative material taking mechanism comprises a shell, a first motor and a rotor, wherein a rotor accommodating chamber, a feeding chamber and a discharging chamber are formed in the shell, wherein the feeding chamber is communicated with the upper side of the rotor accommodating chamber, and the discharging chamber is communicated with the lower side of the rotor accommodating chamber, wherein the rotor is arranged in the rotor accommodating chamber for horizontal rotation, wherein the first motor is fixed to the outer side of the shell and connected to the rotor shaft; wherein the outer diameter of the rotor is adapted to the inner diameter of the rotor accommodating chamber, wherein a plurality of quantitative grooves are arranged in a circumferential array on the circumferential outer wall of the rotor, and wherein an outer The flap is pivotally connected to one side of the notch of the quantitative groove, and the flap can be turned inward to fit the inner wall of the quantitative groove; when any quantitative groove rotates with the rotor into the discharge cavity, the corresponding flap is autonomously turned outward by gravity, and the turned-out flap is physically constrained by the inner wall of the rotor accommodating cavity during the subsequent rotation process, and can be reset and retracted into the corresponding quantitative groove; when any quantitative groove rotates with the rotor to a region close to the feed cavity, the corresponding flap is autonomously and completely fit with the inner wall of the corresponding quantitative groove by gravity.

2. The high-strength dry-mix mortar filling equipment according to claim 1 is characterized in that: The inner wall of the quantitative groove is divided into a covered area covered by the outer flap and an uncovered exposed area. The contour of the exposed area is an arc shape, the center of which is the pivot axis of the outer flap, and the outer end of the outer flap is in contact with the exposed area.

3. The high-strength dry-mix mortar filling equipment according to claim 2 is characterized in that: An air pressure communication hole penetrating the covering area and the circumferential outer wall of the rotor is also provided inside the rotor.

4. The high-strength dry-mix mortar filling equipment according to claim 1 is characterized in that: The shell is provided with an air inlet and an exhaust passage which pass through the rotor accommodating cavity, the air inlet end of the air inlet is connected to an air pump, and the exhaust end of the air inlet and the air inlet end of the exhaust are located on the moving path of the quantitative groove from the discharge cavity to the feed cavity.

5. The high-strength dry-mix mortar filling equipment according to claim 1 is characterized in that: The feed cavity is distributed toward one side of the rotation direction of the rotor.

6. The high-strength dry-mix mortar filling equipment according to claim 1 is characterized in that: A plurality of screw rods are arranged inside the hopper, and a second motor driving the screw rods to rotate is arranged outside the hopper.

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