Feeding system for preparing gypsum mortar for building decoration

Abstract

The present invention discloses a feeding system for preparing gypsum mortar for building decoration, which relates to the technical field of gypsum mortar preparation tools. It includes a horizontally arranged bottom frame, a middle frame horizontally arranged above the bottom frame, and a top frame arranged above the middle frame. A feeding hopper is vertically installed in the inner frame of the top frame. Mixing shafts are vertically rotatably arranged at the bottoms of the fixed blocks and are fixedly connected with horizontally arranged material blocking plates. A fixed feeding mechanism is arranged inside the fixed feeding pipe; a material crushing mechanism is arranged inside the upper part of the discharge pipe; a material shaking assembly is arranged at the top of the fixed block; a material guiding assembly is installed below the fixed plate. Through the cooperation of the discharge pipe, the material shaking assembly, the fixed feeding pipe and the fixed feeding mechanism, the present invention facilitates the continuous quantitative addition operation of the gypsum powder added during the preparation of gypsum mortar, effectively improving the convenience of quantitative addition of gypsum powder during the preparation of gypsum mortar; it can further improve the uniformity of mixing and the finished product quality during the preparation of gypsum mortar.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum mortar preparation appliances, and particularly to a feeding system for preparing gypsum mortar for building decoration. Background Art

[0002] During building decoration, gypsum mortar can be used in wall plastering, floor leveling, wall masonry, etc. It has excellent adhesion and stability, can improve the crack resistance and waterproof performance of the wall, and at the same time can enhance the comfort and aesthetics of the wall; in the wall plastering project, gypsum mortar can replace traditional cement mortar, reducing the construction difficulty and cost;

[0003] Since other ingredients need to be added manually at a specific time during the production of gypsum mortar, as gypsum mortar is mainly composed of raw materials such as gypsum, sand, and water, and the ratio of gypsum powder to sand is between 1:2 and 1:3, and the specific ratio should be adjusted according to the required strength and use of the mortar; in addition, an appropriate amount of retarder or accelerator needs to be added to adjust the setting time of the mortar; generally, through the manual weighing feeding method, it is necessary to continuously weigh the material rack and then add it according to the ratio. This feeding method has a relatively high working intensity when preparing a large amount of gypsum mortar, and the mechanized weighing and feeding equipment is not convenient for handling the lumps in the gypsum powder, which is likely to affect the quality of gypsum mortar preparation; therefore, the above technical problems need to be solved. Summary of the Invention

[0004] The purpose of the present invention is to propose a feeding system for preparing gypsum mortar for building decoration to solve the disadvantages existing in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A feeding system for preparing gypsum mortar for building decoration, including a horizontally arranged bottom frame, a middle frame horizontally arranged above the bottom frame, and a top frame arranged above the middle frame. Support columns are vertically installed at the four corners between the bottom frame and the middle frame. Electric telescopic rods are vertically installed at the four corners of the top of the middle frame. A feeding hopper is vertically installed in the inner frame of the top frame. A mixing box is placed on the top surface of the bottom frame. A discharge pipe is installed at the bottom discharge port of the feeding hopper. Fixed blocks are installed on both sides inside the lower part of the discharge pipe. Mixing shafts are vertically rotatably arranged at the bottoms of the fixed blocks. Spiral mixing blades are sleeved on the mixing shafts. A fixed feeding pipe is vertically installed at the top of the discharge pipe. The pipe body of the fixed feeding pipe extends into the feeding hopper and is fixedly connected with a horizontally arranged material blocking plate. A material dropping port is horizontally opened in the middle of the top surface of the material blocking plate. A fixed feeding mechanism for quantitatively feeding materials is arranged inside the fixed feeding pipe. A material crushing mechanism for crushing material agglomerates is arranged inside the upper part of the discharge pipe. A material dropping port is formed between the opposite surfaces of the two fixed frames. A vibrating component for preventing material retention is arranged at the top of the fixed block. A fixing plate is longitudinally arranged inside the lower part of the material dropping port. A guiding component for material diversion is installed below the fixing plate. Transmission cavities are respectively opened inside the fixed blocks. A transmission component for driving the vibrating component and the mixing shaft is arranged inside the transmission cavities.

[0006] Preferably, the fixed feeding mechanism includes a feeding disk longitudinally rotatably arranged inside the fixed feeding pipe, U-shaped feeding grooves equidistantly opened on the outer peripheral side of the outer wall of the feeding disk, and a servo motor arranged on the rear end face of the fixed feeding pipe. The driving shaft of the servo motor is coaxially fixedly connected with the rear end shaft body of the feeding disk. The opening of the U-shaped feeding groove is larger than the diameter of the material dropping port. The outer wall of the feeding disk is movably attached to the inner wall of the fixed feeding pipe.

[0007] Preferably, the material crushing mechanism includes a crushing shaft horizontally rotatably arranged at the front and rear ends inside the upper part of the discharge pipe, a plurality of crushing plates fixedly installed equidistantly on the front crushing shaft of the discharge pipe, and a plurality of crushing rods fixedly installed equidistantly on the rear crushing shaft of the discharge pipe. The crushing plates and the crushing rods are arranged in a crosswise and staggered manner. Transmission gears are fixedly sleeved at one ends of the two crushing shafts. The two transmission gears are meshed and driven with each other. A driving motor is installed at the other end of one of the crushing shafts.

[0008] Preferably, the discharge pipe is a double-layer pipe structure. The driving motor and the transmission gears are both located inside the interlayer of the discharge pipe. The material blocking plate is an inverted trapezoidal block structure. The outer peripheral wall of the material blocking plate is in sealed contact with the inner peripheral wall of the feeding hopper.

[0009] Preferably, the material shaking assembly includes a material shaking plate that is inclined and hinged to the top of the inner end of the fixed block, a top shaft that rotates vertically at the top of the fixed block, and a first large gear fixedly installed at the bottom end of the top shaft. The top end of the top shaft is a bevel end face. The inclination of the material shaking plate is the same as the bevel direction of the top end of the top shaft. The material shaking plate is an inverted L-shaped plate structure. On the upper parts of the inner walls on both sides of the discharge pipe, closed flexible plates are longitudinally installed. The bottom ends of the closed flexible plates are fixedly connected to the top end of the material shaking plate. The front and rear end plates of the closed flexible plates and the material shaking plate are movably and sealingly attached to the inner wall of the discharge pipe.

[0010] Preferably, the transmission assembly includes a transmission shaft that rotates vertically on the outer side of the interior of the transmission cavity, a first small gear fixedly sleeved on the upper part of the transmission shaft body, and a second large gear fixedly sleeved on the lower shaft body of the transmission shaft. The bottom ends of the top shafts all movably penetrate into the interior of the transmission cavity and are fixedly sleeved with a first large gear that meshes with the first small gear. The top end of the mixing shaft movably penetrates into the interior of the transmission cavity and is fixedly connected with a second small gear that meshes with the second large gear. A reduction motor is longitudinally installed coaxially at the top end of the transmission shaft. The reduction motor is located on the top surface of the fixed block.

[0011] Preferably, the material guiding assembly includes a triangular strip plate longitudinally fixed to the top of the fixed plate, a material guiding plate longitudinally and horizontally arranged below the fixed plate, a return cavity opened inside the fixed plate, three suspension rods vertically arranged inside the return cavity, and an anti-detachment plate fixedly connected to the front and rear end suspension rods. Return springs are movably sleeved on the suspension rods below the anti-detachment plate. The bottom ends of the three suspension rods all movably penetrate out of the return cavity and are fixedly connected to the material guiding plate. The bottom ends of the return springs abut against the inner bottom surface of the return cavity. Both ends of the material guiding plate are inclined downward towards the mixing shaft.

[0012] Preferably, positioning rotating blocks are rotatably sleeved on the lower parts of the support columns. A sector block is fixedly connected to the outer wall of one side of the positioning rotating block. The four corner edges of the mixing box are recessed inward into arc-shaped grooves. The sector block abuts inside the arc-shaped grooves.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of the discharge pipe, the material shaking assembly, the fixed investment pipe, and the fixed investment mechanism, it is convenient to perform continuous quantitative addition operations on the gypsum powder added during the preparation of gypsum mortar, effectively improving the convenience of quantitative addition of gypsum powder during the preparation of gypsum mortar. Through the cooperation of the material shaking assembly and the diversion assembly, it is convenient to effectively break up the lumps in the material and perform shaking and bumping mixing during the quantitative addition of the material, avoiding segregation among the added gypsum powders. And under the action of the centrifugal force of the mixing shaft, it can scatter the material falling into the interior of the mixing box in all directions. It can further improve the uniformity of the preparation and mixing of gypsum mortar and the quality of the finished product. Description of the Drawings

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a three-dimensional schematic diagram of a partial structure of the present invention;

[0017] Figure 3 is a three-dimensional schematic diagram of the structure of the present invention after the blanking hopper is removed;

[0018] Figure 4 is a front view structural sectional view of the blanking hopper and the discharge pipe of the present invention;

[0019] Figure 5 is a front view structural sectional view of the discharge pipe, the fixed feeding pipe and the material blocking plate of the present invention;

[0020] Figure 6 is a schematic diagram of one side structure of the discharge pipe and the fixed feeding pipe of the present invention;

[0021] Figure 7 is a three-dimensional structural schematic diagram of the discharge pipe and the fixed feeding pipe of the present invention;

[0022] Figure 8 is a three-dimensional structural schematic diagram of the blanking plate, the vibrating plate and the guiding plate of the present invention;

[0023] Figure 9 is a three-dimensional structural schematic diagram of the top shaft of the present invention;

[0024] Figure 10 is a three-dimensional structural schematic diagram of the guiding plate and the suspension rod of the present invention.

[0025] Reference numerals in the figures: 1, bottom frame; 2, middle frame; 3, support column; 4, top frame; 5, electric telescopic rod; 6, mixing box; 7, blanking hopper; 8, discharge pipe; 9, positioning rotating block; 10, mixing shaft; 11, fixed feeding pipe; 12, material blocking plate; 13, blanking plate; 14, servo motor; 15, crushing shaft; 16, driving motor; 17, transmission gear; 18, reduction motor; 19, transmission shaft; 20, top shaft; 21, first large gear; 22, second large gear; 23, first small gear; 24, second small gear; 25, suspension rod; 26, guiding plate; 27, return spring; 28, vibrating plate; 29, sealing flexible plate. Detailed embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Embodiment: Refer to Figures 1 to 10 , a feeding system for preparing gypsum mortar for building decoration, which includes a horizontally arranged bottom frame 1, a middle frame 2 horizontally arranged above the bottom frame 1, and a top frame 4 arranged above the middle frame 2. Support columns 3 are vertically installed at the four corners between the bottom frame 1 and the middle frame 2. Electric telescopic rods 5 are vertically installed at the four corners of the top of the middle frame 2. The top of the telescopic end of the electric telescopic rod 5 is fixedly connected to the bottom of the top frame 4; a feeding hopper 7 is vertically installed in the inner frame of the top frame 4. A mixing box 6 is placed on the top surface of the bottom frame 1. A discharge pipe 8 is installed at the bottom discharge port of the feeding hopper 7. Fixed blocks are installed on both sides inside the lower part of the discharge pipe 8. Mixing shafts 10 are vertically rotatably arranged at the bottoms of the fixed blocks. Spiral mixing blades are sleeved on the mixing shafts 10; A fixed feeding pipe 11 is vertically installed at the top of the discharge pipe 8. The pipe body of the fixed feeding pipe 11 extends into the inside of the feeding hopper 7 and is fixedly connected with a horizontally arranged material blocking plate 12. A material dropping port is horizontally opened in the middle of the top surface of the material blocking plate 12; A fixed feeding mechanism for quantitatively feeding materials is arranged inside the fixed feeding pipe 11; A material crushing mechanism for crushing material lumps is arranged inside the upper part of the discharge pipe 8; A feeding port is formed between the opposite surfaces of the two fixed frames; A vibrating component for preventing material retention is arranged at the top of the fixed block; A fixing plate is longitudinally arranged inside the lower part of the feeding port. A guiding component for material diversion is installed below the fixing plate; Transmission cavities are respectively opened inside the fixed blocks. A transmission component for driving the vibrating component and the mixing shaft 10 is arranged inside the transmission cavities; The lower parts of the support columns 3 are respectively rotatably sleeved with positioning rotating blocks 9. A sector block is fixedly connected to the outer wall of one side of the positioning rotating block 9. The four corner edges of the mixing box 6 are recessed inward into arc-shaped grooves. The sector block abuts inside the arc-shaped grooves, which is convenient for limiting and fixing the mixing box 6; Through the cooperation of the discharge pipe 8 with the vibrating component, the fixed feeding pipe 11 and the fixed feeding mechanism, it is convenient to perform continuous quantitative feeding operations on the gypsum powder added during the preparation of gypsum mortar, effectively improving the convenience of quantitatively adding gypsum powder during the preparation of gypsum mortar.

[0028] In the present invention, the fixed feeding mechanism includes a feeding tray 13 longitudinally rotatably arranged inside the fixed feeding pipe 11, U-shaped feeding grooves equidistantly opened on the outer circumferential side of the outer wall of the feeding tray 13, and a servo motor 14 arranged on the rear end surface of the fixed feeding pipe 11. The driving shaft of the servo motor 14 is coaxially fixedly connected to the rear end shaft body of the feeding tray 13. The opening of the U-shaped feeding groove is larger than the caliber of the feeding port; The outer wall of the feeding tray 13 is movably attached to the inner wall of the fixed feeding pipe 11; Through the setting of the fixed feeding mechanism, it is convenient for the materials falling inside the feeding hopper 7 to quantitatively enter the inside of the discharge pipe 8.

[0029] In the present invention, the shredding mechanism includes a crushing shaft 15 horizontally rotatably arranged at the front and rear ends inside the upper part of the discharge pipe 8, a plurality of shredding plates fixedly installed at equal intervals on the crushing shaft 15 at the front end of the discharge pipe 8, and a plurality of shredding rods fixedly installed at equal intervals on the crushing shaft 15 at the rear end of the discharge pipe 8; the shredding plates and the shredding rods are arranged in a crosswise and staggered manner, and one end of each of the two crushing shafts 15 is fixedly sleeved with a transmission gear 17, and the two transmission gears 17 are meshed and driven; the other end of one of the crushing shafts 15 is installed with a driving motor 16; the discharge pipe 8 is a double-layer pipe structure, and the driving motor 16 and the transmission gear 17 are both located inside the sandwich of the discharge pipe 8; the material blocking plate 12 is in an inverted trapezoidal block structure, and the outer peripheral wall of the material blocking plate 12 is in sealed contact with the inner peripheral wall of the feeding hopper 7.

[0030] In the present invention, the vibrating component includes a vibrating plate 28 obliquely hinged at the top of the inner end of the fixed block, a top shaft 20 vertically rotatably arranged at the top of the fixed block, and a first large gear 21 fixedly installed at the bottom end of the top shaft 20. The top end of the top shaft 20 is a bevel end face, the inclination of the vibrating plate 28 is the same as the bevel direction of the top end of the top shaft 20, and the vibrating plate 28 is in an inverted L-shaped plate structure; on the upper parts of the inner walls on both sides of the discharge pipe 8, closed flexible plates 29 are longitudinally installed, and the bottom end of the closed flexible plates 29 is fixedly connected to the top end of the vibrating plate 28; the front and rear end plates of the closed flexible plates 29 and the vibrating plate 28 are in movable sealing fit with the inner wall of the discharge pipe 8; by the rotation of the top shaft 20 in the vibrating component, the bevel at its top can play a role of reciprocally lifting the vibrating plate 28, which can increase the speed of the material sliding off the vibrating plate 28, can play a role of initially jolting and mixing during the falling process of the material, and through the arrangement of the closed flexible plates 29, it can prevent the material from entering the gap between the rising vibrating plate 28 and the discharge pipe 8.

[0031] In the present invention, the transmission assembly includes a transmission shaft 19 vertically rotatably disposed outside the inner side of the transmission cavity, a first small gear 23 fixedly sleeved on the upper part of the shaft body of the transmission shaft 19, and a second large gear 22 fixedly sleeved on the lower shaft body of the transmission shaft 19. The bottom ends of the top shafts 20 all movably penetrate into the inner part of the transmission cavity and are fixedly sleeved with a first large gear 21 meshing with the first small gear 23. The top end of the mixing shaft 10 movably penetrates into the inner part of the transmission cavity and is fixedly connected with a second small gear 24 meshing with the second large gear 22. The top end of the transmission shaft 19 is longitudinally installed coaxially with a reduction motor 18, and the reduction motor 18 is located on the top surface of the fixed block; the feeding assembly includes a triangular strip plate longitudinally fixedly connected to the top of the fixed plate, a feeding plate 26 longitudinally horizontally disposed below the fixed plate, a return cavity opened inside the fixed plate, three suspension rods 25 vertically disposed inside the return cavity, and an anti-disengagement plate fixedly connected to the front and rear suspension rods 25. The suspension rods 25 below the anti-disengagement plate are all movably sleeved with return springs 27. The bottom ends of the three suspension rods 25 all movably penetrate outside the return cavity and are fixedly connected to the feeding plate 26; the bottom end of the return spring 27 abuts against the inner bottom surface of the return cavity; both ends of the feeding plate 26 are inclined downward toward the mixing shaft 10; through the arrangement of the diversion assembly and the vibrating feeding assembly, it is convenient to effectively break the lumps in the material and vibrate and mix the material during the quantitative addition of the material, avoiding the segregation of the added gypsum powder; and under the action of the centrifugal force of the mixing shaft 10, it can play a role of spraying the material falling into the mixing box 6 around; it can further improve the uniformity and finished product quality of the preparation and mixing of gypsum mortar.

[0032] Working principle: In this embodiment, the present invention also proposes a usage method of a feeding system for preparing gypsum mortar for building decoration, including the following steps:

[0033] Step 1, first electrically connect the electric telescopic rod 5, the servo motor 14, the drive motor 16, and the reduction motor 18 to an external control device through wires respectively. Then pour the material to be prepared into the lower hopper 7. At this time, one U-shaped feeding groove of the feeding tray 13 in the fixed-dose assembly is directly opposite to the material dropping port, and the material in the lower hopper 7 will fill this U-shaped feeding groove; then place the mixing box 6 on the top of the bottom frame 1 and limit and fix the four corners of the placed mixing box 6 by rotating the positioning block 9 to prevent the mixing box 6 from moving during the internal material mixing. At the same time, add raw materials such as sand and gravel required inside the mixing box 6 to facilitate the dry mixing operation between the materials during the addition of gypsum powder.

[0034] Step 2: Then start the servo motor 14 to drive the blanking plate 13 to rotate. By rotating the blanking plate 13, it is convenient to turn the U-shaped blanking groove filled with a fixed amount of materials downward, and then pour the materials quantitatively filled in the U-shaped blanking groove into the discharge pipe 8. When the materials fall through the discharge pipe 8, start the drive motor 16 to drive the crushing shaft 15 to rotate. Through the meshing of the two transmission gears 17, the two crushing shafts 15 can perform reverse rotation operations, which is convenient for the two crushing shafts 15 to crush the agglomerated materials falling from the discharge pipe 8 when rotating inward, and can avoid the situation that the agglomerates in the materials to be added affect the preparation of gypsum mortar;

[0035] Step 3: After the agglomerated materials are crushed, they will fall on the top of the vibrating plate 28 and slide towards the falling port. After the materials fall on the top of the vibrating plate 28, start the reduction motor 18 to drive the transmission shaft 19 to rotate. Through the rotation of the transmission shaft 19, the first small gear 23 and the second large gear 22 will be driven to rotate. Through the meshing of the first small gear 23 and the first large gear 21, the top shaft 20 can be driven to rotate. Through the rotation of the top shaft 20, the inclined surface on its top can play a role in reciprocatingly lifting the vibrating plate 28, which can increase the sliding speed of the materials from the vibrating plate 28, can play a role in preliminary jolting and mixing during the falling process of the materials, and through the setting of the sealing soft plate 29, it can prevent the materials from entering the gap between the rising vibrating plate 28 and the discharge pipe 8; Since the diameter of the first small gear 23 is one-tenth of the diameter of the first large gear 21, it is convenient to make the rotation speed of the top shaft 20 much slower than the rotation speed of the transmission shaft 19, so that the top shaft 20 can slowly play a role in intermittently jolting the vibrating plate 28;

[0036] Step 4: Then the materials accelerated and shaken off by the vibrating plate 28 will enter the blanking port. Then when the materials pass through the blanking port, the cooperation of the fixed plate and the triangular strip plate can play a role in diverting the materials falling from the blanking port, and the diverting falling materials will fall on the top of the guide plate 26. Then under the action of the inclined plates at both ends of the guide plate 26, the materials discharged from the blanking port can be guided onto the spiral blades of the mixing shaft 10; Since the diameter of the second large gear 22 on the transmission shaft 19 is more than ten times the diameter of the second small gear 24, when the second large gear 22 drives the mixing shaft 10 fixed to the second small gear 24 to rotate, the rotation speed of the mixing shaft 10 can be much faster than the rotation speed of the transmission shaft 19. Therefore, the materials falling on the spiral blades can play a role in spraying the materials falling into the mixing box 6 in all directions under the action of centrifugal force;

[0037] Step Five. Then, the rotating mixing shaft 10 and the spiral blades can fully stir the raw materials to be mixed and prepared inside the mixing box 6. Due to the reverse rotation of the two mixing shafts 10, it is convenient to perform a relative counter-flinging operation on the materials inside the mixing box 6 when stirring and mixing the materials, which can further improve the uniformity and finished product quality of the preparation and mixing of gypsum mortar. After the preparation of the gypsum mortar is completed, start the electric telescopic rod 5 to push the top frame 4 to rise, so that the rising top frame 4 drives the feeding hopper 7 and the discharge pipe 8 to rise, and the mixing shaft 10 rises out of the mixing box 6. Then, drive the positioning rotating block 9 on the support column 3 to deflect the sector block outwards, and then the mixing box 6 positioned on the top surface of the bottom frame 1 can be removed, and the prepared gypsum mortar can be poured out.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A feeding system for preparing gypsum mortar for building decoration, comprising a horizontally arranged bottom frame (1), a middle frame (2) arranged horizontally above the bottom frame (1), and a top frame (4) arranged above the middle frame (2), characterized in that: Support columns (3) are vertically installed at the four corners between the bottom frame (1) and the middle frame (2), electric telescopic rods (5) are vertically installed at the four corners of the top of the middle frame (2), a lower hopper (7) is vertically installed in the inner frame of the top frame (4), a mixing box (6) is placed on the top surface of the bottom frame (1), a discharge pipe (8) is installed at the bottom discharge port of the lower hopper (7), and fixed blocks are installed on both sides of the lower part of the discharge pipe (8), and the fixed blocks are installed on both sides of the lower part of the discharge pipe (8). The bottom of each block is provided with a mixing shaft (10) which rotates vertically, and the mixing shaft (10) is sleeved with a spiral mixing blade; a fixed-feeding pipe (11) is vertically installed on the top of the discharge pipe (8), the pipe body of the fixed-feeding pipe (11) extends into the lower hopper (7) and is fixedly connected to a horizontally arranged material blocking plate (12), and a material drop opening is horizontally opened in the middle of the top surface of the material blocking plate (12); a fixed-feeding mechanism for quantitatively feeding materials is provided inside the fixed-feeding pipe (11); A crushing mechanism for crushing material lumps is provided in the upper part of the discharge pipe (8); a discharge port is formed between the opposite surfaces of the two fixed blocks; a material shaking assembly for preventing material retention is provided on the top of the fixed block; a fixed plate is longitudinally provided in the lower part of the discharge port, and a material guide assembly for material diversion is installed below the fixed plate; a transmission cavity is provided inside each of the fixed blocks, and a transmission assembly for driving the material shaking assembly and the mixing shaft (10) is provided inside the transmission cavity.

2. The feeding system for preparing gypsum mortar for building decoration according to claim 1 is characterized in that: The fixed-dosing mechanism comprises a feeding tray (13) which is longitudinally rotatably arranged inside the fixed-dosing tube (11), a U-shaped feeding trough which is equidistantly arranged on the outer wall of the feeding tray (13) and a servo motor (14) which is arranged on the rear end surface of the fixed-dosing tube (11), wherein the driving shaft of the servo motor (14) is coaxially fixedly connected to the rear end shaft of the feeding tray (13), the opening of the U-shaped feeding trough is larger than the diameter of the feeding opening; and the outer wall of the feeding tray (13) is movably fitted with the inner wall of the fixed-dosing tube (11).

3. The feeding system for preparing gypsum mortar for building decoration according to claim 1 is characterized in that: The crushing mechanism comprises a crushing shaft (15) which is arranged to rotate transversely at the front and rear ends of the upper part of the discharge pipe (8), a plurality of crushing plates which are fixedly installed at equal intervals on the crushing shaft (15) at the front end of the discharge pipe (8), and a plurality of crushing rods which are fixedly installed at equal intervals on the crushing shaft (15) at the rear end of the discharge pipe (8); the crushing plates and the crushing rods are arranged in a staggered manner, one end of each of the two crushing shafts (15) is fixedly sleeved with a transmission gear (17), and the two transmission gears (17) are meshed for transmission; and a driving motor (16) is installed at the other end of one of the crushing shafts (15).

4. The feeding system for preparing gypsum mortar for building decoration according to claim 3 is characterized in that: The discharge pipe (8) is a double-layer tube structure, and the drive motor (16) and the transmission gear (17) are both located inside the interlayer of the discharge pipe (8); the material blocking plate (12) is an inverted trapezoidal block structure, and the outer ring wall of the material blocking plate (12) is in sealing contact with the inner ring wall of the lower hopper (7).

5. The feeding system for preparing gypsum mortar for building decoration according to claim 1 is characterized in that: The shaking material assembly comprises a shaking material plate (28) hingedly connected to the top of the inner end of the fixed block, a top shaft (20) vertically rotatably arranged on the top of the fixed block, and a first large gear (21) fixedly installed at the bottom end of the top shaft (20), the top end of the top shaft (20) is a beveled end surface, the inclination of the shaking material plate (28) is the same as the bevel direction of the top end of the top shaft (20), and the shaking material plate (28) is an inverted L-shaped plate structure; closed soft plates (29) are longitudinally installed on the upper part of the inner walls on both sides of the discharge pipe (8), and the bottom end of the closed soft plate (29) is fixedly connected to the top end of the shaking material plate (28); the front and rear end plates of the closed soft plate (29) and the shaking material plate (28) are both movably sealed and fitted with the inner wall of the discharge pipe (8).

6. The feeding system for preparing gypsum mortar for building decoration according to claim 5, characterized in that: The transmission assembly comprises a transmission shaft (19) which is arranged to rotate vertically inside and outside the transmission cavity, a first pinion (23) which is fixedly sleeved on the upper part of the shaft body of the transmission shaft (19), and a second large gear (22) which is fixedly sleeved on the lower part of the shaft body of the transmission shaft (19). The bottom end of the top shaft (20) is movably inserted into the transmission cavity and is fixedly sleeved with a first large gear (21) which meshes with the first pinion (23). The top end of the mixing shaft (10) is movably inserted into the transmission cavity and is fixedly sleeved with a second pinion (24) which meshes with the second large gear (22). A reduction motor (18) is coaxially and longitudinally mounted on the top end of the transmission shaft (19). The reduction motor (18) is located on the top surface of the fixed block.

7. The feeding system for preparing gypsum mortar for building decoration according to claim 1 is characterized in that: The material guide assembly comprises a triangular strip plate longitudinally fixed to the top of the fixed plate, a material guide plate (26) longitudinally and horizontally arranged below the fixed plate, a return cavity opened inside the fixed plate, three suspension rods (25) vertically arranged inside the return cavity, and an anti-slip plate fixed to the front and rear end suspension rods (25), the suspension rods (25) below the anti-slip plate are all movably sleeved with return springs (27), the bottom ends of the three suspension rods (25) are all movably passed through the return cavity and are fixed to the material guide plate (26); the bottom end of the return spring (27) is in contact with the inner bottom surface of the return cavity; and both ends of the material guide plate (26) are inclined downward toward the mixing shaft (10).

8. The feeding system for preparing gypsum mortar for building decoration according to claim 1, characterized in that: The lower part of the support column (3) is rotatably sleeved with a positioning rotating block (9), and a fan-shaped block is fixedly connected to the outer wall of one side of the positioning rotating block (9). The four corner edges of the mixing box (6) are all recessed inwardly to form an arc-shaped groove, and the fan-shaped block abuts against the inside of the arc-shaped groove.

Images