Cement mortar preparation system and preparation method

Abstract

The present invention relates to a cement mortar preparation system and preparation method, comprising: a mixing tank drum, wherein a mixing chamber is arranged in the mixing tank drum, a feeding mechanism is installed at the inlet of the mixing tank drum, and a door panel is installed at the outlet of the lower end of the mixing tank drum; a stirring device is installed in the mixing tank drum, and the stirring device is used to stir the raw materials and scrape the inner wall of the mixing tank drum to complete the preparation of cement mortar. The present invention sets a plurality of gears to cooperate with each other, and when the active connecting rod drives the gears to rotate, the driven connecting rod is driven to rotate through the meshing relationship between the gears, thereby driving the stirring blade to follow the rotation of the driven connecting rod, so that the moving trajectory of the stirring blade is more complicated, thereby improving the stirring efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of cement mortar, and in particular to a cement mortar preparation system and a preparation method. Background Art

[0002] Cement mortar is a composite material, usually made by mixing water, cement, sand, water reducing agent and the like in a certain proportion. It is widely used in bridges, roads, buildings and other aspects due to its advantages of low cost, durability, wide application range and stable properties. When preparing the existing cement mortar, it is necessary to put the required raw materials together in a mixing equipment for mixing. However, during the mixing process, the mixing method of the existing mixing equipment is relatively single, which makes the mixing efficiency low. It takes a long time to prepare the cement mortar. In addition, due to the effect of gravity, the uniformity of the bottom and surface of the mortar is not uniform during mixing, which affects the quality of the cement mortar. At the same time, when the existing mixing equipment is mixing, some cement and fine sand will stick to the inner wall of the mixing equipment. These cement and fine sand are located above the liquid surface of the mortar, so that the raw materials stuck to the inside during mixing cannot enter the mortar, resulting in a waste of raw materials and affecting the ratio between cement, fine sand and water. Summary of the invention

[0003] Based on this, it is necessary to provide a cement mortar preparation system and method to address the above problems, which can stir in multiple directions, provide stirring effects, and reduce waste of raw materials.

[0004] The present invention discloses a cement mortar preparation system, comprising: a mixing drum, wherein a mixing chamber is arranged in the mixing drum, a feeding mechanism is installed at the inlet of the mixing drum, and a door panel is installed at the outlet of the lower end of the mixing drum; a stirring device is installed in the mixing drum, and the stirring device is used to stir the raw materials and scrape the inner wall of the mixing drum to complete the preparation of cement mortar.

[0005] In one embodiment, the feeding mechanism includes a feeding hopper mounted on the mixing tank drum and an electric pole fixedly connected to the side wall of the mixing tank drum, the feeding hopper is provided with a first hopper cavity and a second hopper cavity, the outlets of the first hopper cavity and the second hopper cavity are slidably connected with a control panel, the control panel is provided with a first opening for communicating with the first hopper cavity and a second opening for communicating with the second hopper cavity, the output end of the electric pole is fixedly connected to the control panel to drive the control panel to move.

[0006] In one embodiment, the stirring device includes: a stirring mechanism installed in the stirring tank barrel, the stirring mechanism is used to stir the raw materials and scrape the inner wall of the stirring tank barrel; a driving mechanism, installed on the stirring tank barrel and connected to the stirring mechanism, the driving mechanism is used to provide power to the stirring mechanism.

[0007] In one embodiment, the stirring mechanism includes: an active connecting rod, which is rotatably connected to the bottom surface of the stirring tank drum; a driven connecting rod, which is rotatably arranged relative to the active connecting rod, and a stirring blade is installed on the driven connecting rod, and a transverse blade is fixedly connected to the middle part of the stirring blade.

[0008] In one embodiment, a slide groove is provided in the middle of the stirring blade, a protrusion is fixedly connected to the inner wall of the slide groove, and an adjusting rod fixedly connected to the driven connecting rod is rotatably connected in the slide groove, a track groove matching with the protrusion is provided on the outer side of the adjusting rod, a vertical through hole is provided at the center of the adjusting rod, a rotating rod is rotatably connected in the vertical through hole, and the rotating rod is slidably connected to the stirring blade via a flat key.

[0009] In one embodiment, the driving mechanism includes: a motor, fixedly connected to the outside of the mixing tank drum, the output end of the motor is fixedly connected to a first gear, the first gear is connected to a second gear coaxially fixed to the active connecting rod through a first belt; a cam gear is coaxially fixed to the second gear, half of the cam gear is a first gear part, and the other half is an arc part, the cam gear is connected to a grooved gear rotatably connected to the mixing tank drum, the grooved gear is provided with a second gear part and a groove, and a linkage gear is fixedly connected to the grooved gear; a third gear is meshed with the linkage gear and is rotatably connected to the mixing tank drum, the third gear is fixedly connected to a fourth gear located in the mixing tank drum, the fourth gear is meshed with a driven gear coaxially connected to the driven connecting rod; a fifth gear is connected to the active connecting rod, the fifth gear is connected to a sixth gear through a second belt, and the sixth gear is fixedly connected to the rotating rod.

[0010] In one of the embodiments, a protruding column is fixedly connected to the end surface of the cam gear, and a toggle rod cooperating with the protruding column is fixedly connected to the grooved gear.

[0011] In one embodiment, the radius of the driven gear is half of the radius of the fourth gear, and the radius of the sixth gear is half of the radius of the fifth gear.

[0012] In one embodiment, the linkage gear and the second gear portion on the grooved gear have the same radius, and the third gear and the first gear portion on the cam gear have the same radius.

[0013] A method for preparing cement mortar, comprising: S1, preparation work: first adding water and a water reducing agent into a mixing tank, and then adding cement and fine sand into a first hopper cavity and a second hopper cavity respectively, to complete the preparation work; S2, loading: controlling the electric pole to retract, driving the control panel to move rightward, so that the first opening and the second opening are aligned with the first hopper cavity and the second hopper cavity respectively, and then the cement and fine sand fall into the mixing cavity, to complete the loading; S3, mixing preparation: a, general mixing: when fine sand and cement are added into the mixing cavity, starting the motor to drive the first The first gear rotates, thereby causing the cam gear to rotate. When the arc part and the groove cooperate, the active connecting rod follows the rotation, thereby driving the driven gear to rotate 180 degrees around the fourth gear, and the driven gear rotates 360 degrees, so that the driven connecting rod rotates 360 degrees relative to the active connecting rod, and the sixth gear rotates 720 degrees relative to the driven connecting rod, thereby driving the stirring blade to rotate 360 ​​degrees around the adjusting rod, and driving the stirring blade to reciprocate once in the vertical direction. Under the cooperation of the arc part and the groove, the stirring blade not only transmits along itself, but also rotates around the fifth gear and around the first gear. The four gears rotate to stir the mortar in multiple directions. At the same time, the stirring blades reciprocate up and down, driving the horizontal blades to stir up and down, thereby mixing the bottom layer and the surface layer of the mortar to make the mortar more uniform; b. Scraping the inner wall: With the cooperation between the convex column and the toggle rod, when the cam gear rotates 180 degrees, the arc part rotates out of the groove, so the first gear part and the second gear part are meshed, driving the grooved gear to follow the rotation, and then driving the linkage gear to rotate, so that the fourth gear follows the rotation. At this time, the driven connecting rod and the active connecting rod are 180 degrees, and the stirring blade extends out. The liquid surface is attached to the inner wall of the mixing tank drum, and when the stirring blade rotates around the center of the mixing tank drum, the raw materials above the liquid surface on the inner wall of the mixing tank drum are scraped off, and when the cam gear drives the stirring blade to rotate 360 ​​degrees, the first gear part and the second gear part are separated, and the arc part cooperates with the groove again to form a cycle, so that when the cam gear rotates, it can drive the stirring blade to stir first and then scrape the inner wall, thereby completing the preparation of cement mortar; S4, unloading: when the preparation of cement mortar is completed, the door panel is opened, and the prepared cement mortar is collected manually to complete the unloading.

[0014] Beneficial effects of the present invention:

[0015] 1. By setting the relative coordination between multiple gears, and when the active connecting rod drives the gears to rotate, the driven connecting rod is driven to rotate through the meshing relationship between the gears, thereby driving the stirring blade to rotate with the driven connecting rod, making the moving trajectory of the stirring blade more complicated, thereby improving the stirring efficiency.

[0016] 2. By setting the coordination of the fifth gear, the second belt and the sixth gear, when the driven connecting rod drives the stirring blade to rotate, it can drive the stirring blade to rotate along its own axis, thereby performing more complex stirring of the mortar, improving the stirring efficiency and ensuring the stirring quality.

[0017] 3. By setting an adjusting rod and a track groove on the adjusting rod, when the driven connecting rod rotates to drive the stirring blade to rotate, the protrusion on the stirring blade slides in the track groove, thereby driving the stirring blade to move back and forth up and down along the direction of the adjusting rod, and driving the transverse blade to move back and forth up and down, thereby promoting the mixing between the bottom layer and the surface layer of the mortar, making the mortar mixing more uniform.

[0018] 4. By setting the ratio of the diameters between the gears and coordinating the interconnection relationship, when the driven connecting rod and the active connecting rod are in line, the stirring blade is also in line with the driven connecting rod. At this time, the stirring blade moves upward to the highest point under the action of the track groove and extends out of the liquid surface, and fits against the inner wall of the stirring chamber, providing conditions for completing the cleaning of the raw materials.

[0019] 5. By setting the grooved gear and the cam gear to cooperate, and at the same time setting the linkage gear to drive the fourth gear to rotate, when the groove of the grooved gear and the arc part of the cam gear cooperate, the rotation of the cam gear cannot drive the grooved gear to rotate, and then the linkage gear cannot rotate, so that the fourth gear does not rotate. At this time, when the active connecting rod drives the driven gear to rotate, the stirring blade rotates to perform the stirring action, and when the second gear part of the grooved gear and the first gear part of the cam gear are meshed, it can drive the linkage gear to rotate, and then the fourth gear and the active connecting rod rotate together. At this time, the stirring blade is attached to the inner wall of the stirring barrel, and the stirring blade does not rotate by itself, but rotates around the center line of the stirring tank barrel, thereby scraping the raw materials attached to the wall and bringing them below the liquid surface to complete the mixing of all raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a cross-sectional view of the present invention;

[0021] Figure 2 For the present invention Figure 1 Section view in the AA direction;

[0022] Figure 3 It is a cross-sectional view of the active connecting rod of the present invention when it rotates 45 degrees;

[0023] Figure 4 It is a cross-sectional view of the active connecting rod of the present invention when it rotates 45 degrees;

[0024] Figure 5 For the present invention Figure 1 Cross-sectional view in the middle BB direction;

[0025] Figure 6 For the present invention Figure 1 Cross-sectional view in CC direction;

[0026] Figure 7 For the present invention Figure 1 Cross-sectional view in the middle DD direction;

[0027] Figure 8 For the present invention Figure 1 Cross-sectional view along EE direction.

[0028] In the figure, a stirring drum 11, a stirring chamber 111, a door panel 112, a feed hopper 12, a first hopper chamber 121, a second hopper chamber 122, a stirring blade 21, a transverse blade 22, a protrusion 23, an active connecting rod 31, a driven connecting rod 32, an adjusting rod 321, a track groove 322, a rotating rod 33, a fifth gear 41, a sixth gear 42, a second belt 43, a fourth gear 51, a driven gear 52, a third gear 53, a linkage gear 54, a cam gear 61, a first gear portion 611, an arc portion 612, a boss 613, a grooved gear 62, a second gear portion 621, a groove 622, a toggle rod 623, a first gear 71, a second gear 72, a first belt 73, a motor 74, an electric pole 81, a control panel 82, a first opening 821, and a second opening 822. DETAILED DESCRIPTION

[0029] 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.

[0030] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0032] like Figure 1As shown, a cement mortar preparation system includes: a mixing tank drum 11, a mixing chamber 111 is arranged in the mixing tank drum 11, a feeding mechanism is installed at the inlet of the mixing tank drum 11, and a door panel 112 is installed at the lower end outlet of the mixing tank drum 11; a stirring device is installed in the mixing tank drum 11, and the stirring device is used to stir the raw materials and scrape the inner wall of the mixing tank drum 11 to complete the preparation of cement mortar.

[0033] In one embodiment, if Figure 1 As shown, the feeding mechanism includes a feeding hopper 12 installed on the mixing tank drum 11 and an electric pole 81 fixedly connected to the side wall of the mixing tank drum 11, the feeding hopper 12 is provided with a first hopper cavity 121 and a second hopper cavity 122, the outlets of the first hopper cavity 121 and the second hopper cavity 122 are slidably connected with a control board 82, the control board 82 is provided with a first opening 821 for communicating with the first hopper cavity 121 and a second opening 822 for communicating with the second hopper cavity 122, the output end of the electric pole 81 is fixedly connected to the control board 82 to drive the control board 82 to move.

[0034] In one embodiment, if Figure 1 As shown, the stirring device includes: a stirring mechanism installed in the stirring tank drum 11, the stirring mechanism is used to stir the raw materials and scrape the inner wall of the stirring tank drum 11; a driving mechanism is installed on the stirring tank drum 11 and connected to the stirring mechanism, the driving mechanism is used to provide power to the stirring mechanism.

[0035] In one embodiment, if Figures 1 to 5 As shown, the stirring mechanism includes: an active connecting rod 31, which is rotatably connected to the bottom surface of the stirring tank drum 11; a driven connecting rod 32, which is rotatably arranged relative to the active connecting rod 31, and a stirring blade 21 is installed on the driven connecting rod 32, and a transverse blade 22 is fixedly connected to the middle part of the stirring blade 21.

[0036] It is worth mentioning that Figures 2 to 5 As shown, there are four stirring blades 21, and they are symmetrically distributed in pairs.

[0037] In one embodiment, if Figure 1As shown, a slide groove is provided in the middle of the stirring blade 21, a protrusion 23 is fixedly connected to the inner wall of the slide groove, and an adjusting rod 321 fixedly connected to the driven connecting rod 32 is rotatably connected in the slide groove, a track groove 322 matching the protrusion 23 is provided on the outer side of the adjusting rod 321, a vertical through hole is provided at the center of the adjusting rod 321, a rotating rod 33 is rotatably connected in the vertical through hole, and the rotating rod 33 is slidably connected to the stirring blade 21 through a flat key.

[0038] In one embodiment, if Figures 1 to 8 As shown, the driving mechanism includes: a motor 74, which is fixedly connected to the outside of the mixing tank drum 11, and the output end of the motor 74 is fixedly connected to a first gear 71, and the first gear 71 is connected to a second gear 72 coaxially fixed to the active connecting rod 31 through a first belt 73; a cam gear 61, which is coaxially fixed to the second gear 72, and one half of the cam gear 61 is a first gear part 611, and the other half is an arc part 612, and the cam gear 61 is connected to a grooved gear 62 rotatably connected to the mixing tank drum 11, and the grooved gear 62 is provided with a second gear Part 621 and groove 622, a linkage gear 54 is fixedly connected to the grooved gear 62; a third gear 53 is meshed with the linkage gear 54 and is rotatably connected to the mixing tank drum 11, a fourth gear 51 located in the mixing tank drum 11 is fixedly connected to the third gear 53, and the fourth gear 51 is meshed with a driven gear 52 coaxially connected to the driven connecting rod 32; a fifth gear 41 is connected to the active connecting rod 31, the fifth gear 41 is connected to the sixth gear 42 through a second belt 43, and the sixth gear 42 is fixedly connected to the rotating rod 33.

[0039] In one embodiment, if Figure 6 As shown, a protruding column 613 is fixedly connected to the end surface of the cam gear 61 , and a toggle rod 623 cooperating with the protruding column 613 is fixedly connected to the grooved gear 62 .

[0040] In one embodiment, if Figure 3 and Figure 8 As shown, the radius of the driven gear 52 is half of the radius of the fourth gear 51 , and the radius of the sixth gear 42 is half of the radius of the fifth gear 41 .

[0041] In one embodiment, if Figure 1 , Figure 6 and Figure 7 As shown, the linkage gear 54 and the second gear portion 621 on the grooved gear 62 have the same radius, and the third gear 53 and the first gear portion 611 on the cam gear 61 have the same radius.

[0042] A method for preparing cement mortar, comprising:

[0043] S1. Preparation: first add water and water reducing agent into the mixing tank 11, then add cement and fine sand into the first hopper cavity 121 and the second hopper cavity 122 respectively, to complete the preparation;

[0044] S2, loading: Control the electric rod 81 to retract, drive the control plate 82 to move rightward, so that the first opening 821 and the second opening 822 are aligned with the first hopper cavity 121 and the second hopper cavity 122 respectively, so that cement and fine sand fall into the mixing cavity 111, and the loading is completed;

[0045] S3, stirring preparation:

[0046] a. General mixing: When fine sand and cement are added into the mixing chamber 111, the motor 74 is started to drive the first gear 71 to rotate, and the second gear 72 is driven to rotate through the first belt 73. Since the second gear 72 and the cam gear 61 are coaxially connected, the cam gear 61 rotates accordingly. Since half of the cam gear 61 is the first gear part 611 and the other half is the arc part 612, as shown in FIG. Figure 1The figure shows the opening state of the present invention. Therefore, when the arc portion 612 and the groove 622 cooperate, the grooved gear 62 does not rotate with the cam gear 61. Since the linkage gear 54 is meshed with the third gear 53, and the third gear 53 is fixedly connected to the fourth gear 51, the fourth gear 51 does not rotate with it. Since the active connecting rod 31 and the second gear 72 are coaxial and fixedly connected, the active connecting rod 31 rotates with it, thereby driving the driven gear 52 to rotate. Under the meshing of the driven gear 52 and the fourth gear 51, the driven gear 52 rotates. Since the radius of the driven gear 52 is half of the radius of the fourth gear 51, when the active connecting rod 31 drives the driven gear 52 to rotate 180 degrees around the fourth gear 51, the driven gear 52 rotates 360 degrees. Since the driven gear 52 and the driven connecting rod 32 are coaxially connected, the driven connecting rod 32 is driven to rotate 360 ​​degrees relative to the active connecting rod 31. Since the fifth gear 41 and the sixth gear 42 cooperate through the second belt 43, The fifth gear 41 is fixedly connected to the active connecting rod 31, and the radius of the sixth gear 42 is half of the radius of the fifth gear 41, so that when the driven connecting rod 32 rotates 360 degrees relative to the active connecting rod 31, the sixth gear 42 rotates 720 degrees relative to the driven connecting rod 32. Since the sixth gear 42 is fixedly connected to the rotating rod 33, the rotating rod 33 is flatly keyed to the stirring blade 21, and the stirring blade 21 is rotatably connected to the adjusting rod 321, the protrusion 23 slides in the track groove 322, so that when the stirring blade 21 rotates 360 degrees around the adjusting rod 321, the stirring blade 21 is driven to reciprocate once in the vertical direction. Therefore, when the arc portion 612 and the groove 622 cooperate, the active connecting rod 31 drives the stirring blade 21 not only to transmit along itself, but also to rotate around the fifth gear 41 and the fourth gear 51 at the same time, so as to stir the mortar in multiple directions. At the same time, the stirring blade 21 reciprocates up and down, driving the transverse blade 22 to stir up and down, so as to mix the bottom layer and the surface layer of the mortar, so as to make the mortar more uniform.

[0047] b. Inner wall scraping: With the cooperation between the protruding column 613 and the toggle rod 623, when the cam gear 61 rotates 180 degrees, the arc portion 612 rotates out of the groove 622, so the first gear portion 611 and the second gear portion 621 mesh, driving the grooved gear 62 to follow the rotation, thereby driving the linkage gear 54 to rotate, and the linkage gear 54 drives the third gear 53 to rotate, so that the fourth gear 51 follows the rotation. Since the linkage gear 54 and the second gear portion 621 on the grooved gear 62 have the same radius, and the third gear 53 and the first gear portion 611 on the cam gear 61 have the same radius, the rotation speed of the fourth gear 51 is the same as the rotation speed of the cam gear 61, so the active connecting rod 31 and the fourth gear 51 have the same rotation speed, so that the driven gear 52 and the fourth gear 51 are relatively stationary, so when the cam gear 61 rotates 180 degrees, the driven connecting rod 32 and the active connecting rod 31 are 180 degrees, and at this time the stirring blade 21 also moves to Figure 1 , 2In the position shown, the stirring blade 21 extends out of the liquid surface and sticks to the inner wall of the stirring tank drum 11. Since the driven gear 52 and the fourth gear 51 are relatively immobile at this time, the driven connecting rod 32 does not rotate, and the stirring blade 21 does not rotate either. Therefore, the stirring blade 21 rotates around the center of the stirring tank drum 11 to scrape off the raw materials above the liquid surface of the inner wall of the stirring tank drum 11. When the cam gear 61 drives the stirring blade 21 to rotate 360 ​​degrees, the first gear part 611 and the second gear part 621 separate, and the arc part 612 cooperates with the groove 622 again, so that the grooved gear 62 does not rotate, forming a cycle, and then when the cam gear 61 rotates, it can drive the stirring blade 21 to stir first and then scrape the inner wall, thereby completing the preparation of cement mortar;

[0048] S4, unloading: when the preparation of cement mortar is completed, the door panel 112 is opened, and the prepared cement mortar is manually collected to complete the unloading.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cement mortar preparation system, characterized in that: include: A stirring drum, wherein a stirring chamber is arranged in the stirring drum, a feeding mechanism is installed at the inlet of the stirring drum, and a door panel is installed at the outlet of the lower end of the stirring drum; A stirring device is installed in the stirring drum, and is used to stir the raw materials and scrape the inner wall of the stirring drum to complete the preparation of cement mortar; The stirring device comprises: a stirring mechanism installed in the stirring tank drum, the stirring mechanism is used to stir the raw materials and scrape the inner wall of the stirring tank drum; a driving mechanism is installed on the stirring tank drum and connected to the stirring mechanism, the driving mechanism is used to provide power to the stirring mechanism; The stirring mechanism comprises: an active connecting rod, which is rotatably connected to the bottom surface of the stirring tank drum; a driven connecting rod, which is rotatably arranged relative to the active connecting rod, a stirring blade is installed on the driven connecting rod, and a transverse blade is fixedly connected to the middle part of the stirring blade; a slide groove is arranged in the middle of the stirring blade, a protrusion is fixedly connected to the inner wall of the slide groove, and an adjusting rod fixedly connected to the driven connecting rod is rotatably connected in the slide groove, a track groove matching with the protrusion is arranged on the outer side of the adjusting rod, a vertical through hole is arranged at the center of the adjusting rod, a rotating rod is rotatably connected in the vertical through hole, and the rotating rod is slidably connected to the stirring blade through a flat key; The driving mechanism comprises: a motor, which is fixedly connected to the outside of the mixing tank drum, the output end of the motor is fixedly connected to a first gear, the first gear is connected to a second gear coaxially fixed to the active connecting rod through a first belt; a cam gear is coaxially fixed to the second gear, one half of the cam gear is a first gear part, and the other half is an arc part, the cam gear is connected to a grooved gear rotatably connected to the mixing tank drum, the grooved gear is provided with a second gear part and a groove, and the grooved gear is fixedly connected to a linkage gear; a third gear is meshed with the linkage gear and rotatably connected to the mixing tank drum, the third gear is fixedly connected to a fourth gear located in the mixing tank drum, the fourth gear is meshed with a driven gear coaxially connected to the driven connecting rod; a fifth gear is connected to the active connecting rod, the fifth gear is connected to a sixth gear through a second belt, and the sixth gear is fixedly connected to the rotating rod; The end surface of the cam gear is fixedly connected with a convex column, and the grooved gear is fixedly connected with a toggle rod matched with the convex column.

2. The cement mortar preparation system according to claim 1, characterized in that: The feeding mechanism includes a feeding hopper installed on the mixing tank drum and an electric pole fixedly connected to the side wall of the mixing tank drum, the feeding hopper is provided with a first hopper cavity and a second hopper cavity, the outlets of the first hopper cavity and the second hopper cavity are slidably connected with a control board, the control board is provided with a first opening for communicating with the first hopper cavity and a second opening for communicating with the second hopper cavity, the output end of the electric pole is fixedly connected to the control board to drive the control board to move.

3. The cement mortar preparation system according to claim 2, characterized in that: The radius of the driven gear is half of the radius of the fourth gear, and the radius of the sixth gear is half of the radius of the fifth gear.

4. The cement mortar preparation system according to claim 3, characterized in that: The linkage gear and the second gear portion on the grooved gear have the same radius, and the third gear and the first gear portion on the cam gear have the same radius.

5. A method for preparing cement mortar, using the cement mortar preparation system according to claim 4, characterized in that: include: S1. Preparation: first add water and water reducing agent into the mixing tank, then add cement and fine sand into the first hopper cavity and the second hopper cavity respectively to complete the preparation; S2, loading: Control the pole to retract, drive the control panel to move to the right, so that the first opening and the second opening are aligned with the first hopper cavity and the second hopper cavity respectively, so that cement and fine sand fall into the mixing cavity, and the loading is completed; S3, stirring preparation: a. General mixing: When fine sand and cement are added into the mixing chamber, the motor is started to drive the first gear to rotate, and then the cam gear rotates. When the arc part and the groove cooperate, the active connecting rod rotates accordingly, and then drives the driven gear to rotate 180 degrees around the fourth gear, and the driven gear rotates 360 degrees, so that the driven connecting rod rotates 360 degrees relative to the active connecting rod, and the sixth gear rotates 720 degrees relative to the driven connecting rod, thereby driving the stirring blade to rotate 360 ​​degrees around the adjusting rod, and driving the stirring blade to reciprocate once in the vertical direction. Under the cooperation of the arc part and the groove, the stirring blade not only drives along itself, but also rotates around the fifth gear and the fourth gear, so as to stir the mortar in multiple directions. At the same time, the stirring blade reciprocates up and down, driving the horizontal blade to stir up and down, so as to mix the bottom layer and the surface layer of the mortar, making the mortar more uniform. b. Scraping the inner wall: With the cooperation between the convex column and the toggle rod, when the cam gear rotates 180 degrees, the arc part rotates out of the groove, so the first gear part and the second gear part are meshed, driving the grooved gear to follow the rotation, and then driving the linkage gear to rotate, so that the fourth gear follows the rotation. At this time, the driven connecting rod and the active connecting rod are 180 degrees, and the stirring blade extends out of the liquid surface and sticks to the inner wall of the mixing tank barrel. When the stirring blade rotates around the center of the mixing tank barrel, the raw materials above the liquid surface of the inner wall of the mixing tank barrel are scraped off, and when the cam gear drives the stirring blade to rotate 360 ​​degrees, the first gear part and the second gear part are separated, and the arc part cooperates with the groove again to form a cycle, so that when the cam gear rotates, it can drive the stirring blade to stir first and then scrape the inner wall, thereby completing the preparation of cement mortar; S4, unloading: When the preparation of cement mortar is completed, the door panel is opened, and the prepared cement mortar is collected manually to complete the unloading.

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