Feeding system for preparing gypsum mortar for building decoration

Abstract

The invention discloses a feeding system for preparing gypsum mortar for building decoration, and relates to the technical field of gypsum mortar preparation appliances, the feeding system comprises a horizontally arranged bottom frame, a middle frame horizontally arranged above the bottom frame and a top frame arranged above the middle frame, a discharging hopper is vertically mounted in an inner frame of the top frame, and mixing shafts are vertically and rotatably arranged at the bottoms of fixing blocks; a horizontally arranged material blocking plate is fixedly connected to the fixed feeding pipe; a fixed feeding mechanism is arranged in the fixed feeding pipe; a crushing mechanism is arranged in the upper part of the discharging pipe; a material shaking assembly is arranged at the top of the fixed block; a material guiding assembly is installed below the fixing plate. Through cooperation of a discharging pipe and a material shaking assembly and cooperation of a fixed feeding pipe and a fixed feeding mechanism, continuous quantitative adding operation of added gypsum powder during preparation of gypsum mortar is facilitated, and the convenience of quantitative adding of the gypsum powder during preparation of the gypsum mortar is effectively improved; and the uniformity of preparation and mixing of the gypsum mortar and the quality of finished products can be further improved.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum mortar preparation tools, in particular to a feeding system for preparing gypsum mortar for building decoration. Background Art

[0002] In building decoration, gypsum mortar can be used for wall plastering, ground leveling, wall masonry, etc. It has excellent adhesion and stability, can improve the crack resistance and waterproof performance of the wall, and can also enhance the comfort and aesthetics of the wall. In wall plastering projects, gypsum mortar can replace traditional cement mortar to reduce construction difficulty and cost.

[0003] When producing gypsum mortar, other ingredients need to be added manually within a specific time, because gypsum mortar is mainly composed of raw materials such as gypsum, sand, and water, in which 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 purpose of the mortar; in addition, it is necessary to add an appropriate amount of retarder or accelerator to adjust the setting time of the mortar; generally, the material rack needs to be weighed continuously through manual weighing, and then the material is added according to the proportion. This feeding method has a high work intensity when preparing a large amount of gypsum mortar, and the mechanized weighing and feeding equipment is not convenient for handling the agglomerates in the gypsum powder, which can easily affect the quality of the 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 solve the shortcomings of the prior art and to propose a feeding system for the configuration of gypsum mortar for building decoration.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a feeding system for the configuration of gypsum mortar for building decoration, comprising a horizontally arranged bottom frame, a horizontally arranged middle frame above the bottom frame and a top frame 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 lower 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 lower hopper, fixed blocks are installed on both sides of the lower part of the discharge pipe, a mixing shaft is vertically rotatable at the bottom of the fixed block, and spiral mixing blades are sleeved on the mixing shaft; the top of the discharge pipe A fixed feeding pipe is vertically installed in the part, the tube body of the fixed feeding pipe extends into the interior of the lower hopper and is fixedly connected with a horizontally arranged material blocking plate, and a material dropping port is horizontally opened in the middle of the top surface of the material blocking plate; a fixed feeding mechanism for quantitative material feeding is arranged inside the fixed feeding pipe; a crushing mechanism for breaking material agglomerates is arranged in the upper part of the discharge pipe; a material discharge port is formed between the opposite surfaces of the two fixed frames; a material shaking assembly for preventing material retention is arranged on the top of the fixed block; a fixed plate is longitudinally arranged in the lower part of the lower feeding port, and a material guiding assembly for material diversion is installed under the fixed plate; a transmission cavity is opened inside the fixed block, and a transmission assembly for driving the material shaking assembly and the mixing shaft is arranged inside the transmission cavity.

[0006] Preferably, the fixed-feed mechanism includes a feed tray that is longitudinally rotated and arranged inside the fixed-feed tube, a U-shaped feed trough that is equidistantly arranged on the outer wall of the feed tray, and a servo motor that is arranged on the rear end face of the fixed-feed tube, the drive shaft of the servo motor is coaxially fixed to the rear end shaft of the feed tray, the opening of the U-shaped feed trough is larger than the diameter of the feed port; the outer wall of the feed tray is movably fitted with the inner wall of the fixed-feed tube.

[0007] Preferably, the crushing mechanism includes a crushing shaft which is laterally rotatably arranged at the front and rear ends of the upper part of the discharge pipe, a plurality of crushing plates which are equidistantly fixedly installed on the crushing shaft at the front end of the discharge pipe, and a plurality of crushing rods which are equidistantly fixedly installed on the crushing shaft at the rear end of the discharge pipe; the crushing plates and the crushing rods are cross-staggered, one end of the two crushing shafts are fixedly sleeved with a transmission gear, and the two transmission gears are meshed for transmission; the other end of one of the crushing shafts is equipped with a driving motor.

[0008] Preferably, the discharge pipe is a double-layer tube structure, and the drive motor and the transmission gear are both located inside the interlayer of the discharge pipe; the material blocking plate is an inverted trapezoidal block structure, and the outer ring wall of the material blocking plate is sealingly abutted against the inner ring wall of the lower hopper.

[0009] Preferably, the shaking material assembly includes a shaking material plate obliquely hinged at the top of the inner end of the fixed block, a top shaft vertically rotatable at the top of the fixed block and a first large gear fixedly installed at the bottom end of the top shaft, the top of the top shaft is a beveled end face, the inclination of the shaking material plate is the same as the bevel direction of the top of the top shaft, and the shaking material plate is an inverted L-shaped plate structure; closed soft plates are longitudinally installed on the upper part of the inner walls on both sides of the discharge pipe, and the bottom end of the closed soft plate is fixedly connected to the top end of the shaking material plate; the front and rear end plates of the closed soft plate and the shaking material plate are both movably sealed and fitted with the inner wall of the discharge pipe.

[0010] Preferably, the transmission assembly includes a transmission shaft that is vertically rotatable and arranged on the outside of the transmission cavity, a first pinion fixedly sleeved on the upper part of the transmission shaft shaft body, and a second large gear fixedly sleeved on the lower part of the transmission shaft shaft body. The bottom end of the top shaft movably penetrates into the transmission cavity and is fixedly sleeved with the first large gear meshing with the first pinion gear. The top end of the mixing shaft movably penetrates into the transmission cavity and is fixedly sleeved with the second pinion gear meshing with the second large gear. A reduction motor is coaxially and longitudinally installed at the top end of the transmission shaft, and the reduction motor is located on the top surface of the fixed block.

[0011] Preferably, the material guide assembly includes a triangular strip plate longitudinally fixed to the top of the fixed plate, a material guide plate longitudinally and horizontally arranged below the fixed plate, a return cavity opened in the fixed plate, three suspension rods vertically arranged inside the return cavity and an anti-slip plate fixed to the two suspension rods at the front and rear ends, the suspension rods below the anti-slip plate are movably sleeved with return springs, the bottom ends of the three suspension rods are movably passed through the return cavity and are fixed to the material guide plate; the bottom end of the return spring abuts against the inner bottom surface of the return cavity; both ends of the material guide plate are inclined downward toward the mixing axis.

[0012] Preferably, a positioning block is rotatably sleeved at the lower part of the support column, a fan-shaped block is fixedly connected to the outer wall of one side of the positioning block, the four corner edges of the mixing box are recessed inward to form an arc groove, and the fan-shaped block abuts against the inside of the arc groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates the continuous quantitative addition of gypsum powder added when preparing gypsum mortar through the cooperation of the discharge pipe and the shaking material component and the fixed feeding pipe and the fixed feeding mechanism, thereby effectively improving the convenience of quantitative addition of gypsum powder when preparing gypsum mortar; through the cooperation of the shaking material component and the guide component, it is convenient to effectively break up the lumps in the material and shake and mix the material during the quantitative addition process, thereby avoiding segregation between the added gypsum powder; and under the action of the centrifugal force of the mixing shaft, the material falling into the mixing box can be thrown to all sides; the uniformity of the preparation and mixing of gypsum mortar and the quality of the finished product can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary 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 It is a schematic diagram of the overall structure of the present invention;

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

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

[0018] Figure 4 It is a cross-sectional view of the main structure of the lower hopper and the discharge pipe of the present invention;

[0019] Figure 5 It is a cross-sectional view of the main structure of the discharge pipe, fixed injection pipe and material blocking plate of the present invention;

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

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

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of the material unloading tray, the material shaking plate and the material guide plate of the present invention;

[0023] Fig. 9 It is a schematic diagram of the three-dimensional structure of the top shaft of the present invention;

[0024] Fig.10 It is a schematic diagram of the three-dimensional structure of the material guide plate and the suspension rod of the present invention.

[0025] Serial numbers in the figure: 1. bottom frame; 2. middle frame; 3. support column; 4. top frame; 5. electric telescopic rod; 6. mixing box; 7. lower hopper; 8. discharge pipe; 9. positioning turn block; 10. mixing shaft; 11. fixed feeding pipe; 12. material blocking plate; 13. discharge tray; 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. guide plate; 27. return spring; 28. shaking plate; 29. ​​closed soft plate. DETAILED DESCRIPTION

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

[0027] Example: See Figures 1 to 10 The feeding system for gypsum mortar configuration for building decoration comprises a horizontally arranged bottom frame 1, a horizontally arranged middle frame 2 above the bottom frame 1 and a top frame 4 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 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 7, and fixed blocks are installed on both sides of the lower part of the discharge pipe 8. The bottom of the fixed block is vertically rotatable with a mixing shaft 10, and spiral mixing blades are sleeved on the mixing shaft 10; a fixed injection pipe 11 is vertically installed on the top of the discharge pipe 8, and the pipe body of the fixed injection 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; the fixed injection pipe 11 is provided with a material quantitative feeding The fixed feeding mechanism; a crushing mechanism for material agglomeration is provided in the upper part of the discharge pipe 8; a discharge port is formed between the opposite surfaces of the two fixed frames; a shaking material 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 guide assembly for material diversion is installed below the fixed plate; a transmission cavity is opened inside the fixed block, and a transmission assembly for driving the shaking material assembly and the mixing shaft 10 is provided inside the transmission cavity; a positioning rotating block 9 is rotatably sleeved on the lower part of the support column 3, and a fan-shaped block is fixedly connected to the outer wall of one side of the positioning rotating block 9, and the four corner edges of the mixing box 6 are all concave inwardly as an arc groove, and the fan-shaped block abuts against the inside of the arc groove, which is convenient for limiting and fixing the mixing box 6; through the cooperation of the discharge pipe 8, the shaking material assembly, the fixed feeding pipe 11 and the fixed feeding mechanism, it is convenient to carry out continuous quantitative addition operation of the gypsum powder added when preparing the gypsum mortar, and effectively improve the convenience of quantitative addition of gypsum powder when preparing the gypsum mortar.

[0028] In the present invention, the fixed-feed mechanism includes a feed tray 13 which is longitudinally rotated and arranged inside the fixed-feed tube 11, a U-shaped feed trough which is equidistantly arranged on the outer wall of the feed tray 13, and a servo motor 14 which is arranged on the rear end face of the fixed-feed tube 11. The driving shaft of the servo motor 14 is coaxially fixedly connected to the rear end shaft of the feed tray 13, and the opening of the U-shaped feed trough is larger than the diameter of the feed port. The outer wall of the feed tray 13 is movably fitted with the inner wall of the fixed-feed tube 11. Through the setting of the fixed-feed mechanism, it is convenient for the material falling from the feed hopper 7 to enter the discharge pipe 8 in a quantitative manner.

[0029] In the present invention, the crushing mechanism includes a crushing shaft 15 which is laterally rotatable and arranged at the front and rear ends of the upper part of the discharge pipe 8, a plurality of crushing plates which are equidistantly fixedly installed on the crushing shaft 15 at the front end of the discharge pipe 8, and a plurality of crushing rods which are equidistantly fixedly installed on the crushing shaft 15 at the rear end of the discharge pipe 8; the crushing plates and the crushing rods are cross-staggered, and one end of the two crushing shafts 15 are fixedly sleeved with a transmission gear 17, and the two transmission gears 17 are meshed for transmission; a driving motor 16 is installed at the other end of one of the crushing shafts 15; the discharge pipe 8 is a double-layer tube structure, and the driving 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 sealed and abutted against the inner ring wall of the lower hopper 7.

[0030] In the present invention, the shaking material assembly includes a shaking material plate 28 hingedly connected to the top of the inner end of the fixed block, a top shaft 20 vertically rotating 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 face, and the inclination of the shaking material plate 28 is the same as the bevel direction of the top end of the top shaft 20. The shaking material plate 28 is an inverted L-shaped plate structure; the upper inner wall of both sides of the discharge pipe 8 is longitudinally installed with a closed soft plate 29, and the bottom end of the closed soft plate 29 is fixed 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 plate 28 are both movably sealed and fitted with the inner wall of the discharge pipe 8; through the rotation of the top shaft 20 in the shaking assembly, the inclined surface of its top can play a reciprocating lifting role on the shaking plate 28, which can increase the speed at which the material slides off the shaking plate 28, and can play a role in preliminary shaking and mixing during the falling process of the material, and through the setting of the closed soft plate 29, the material can be prevented from entering the gap between the raised shaking plate 28 and the discharge pipe 8.

[0031] In the present invention, the transmission assembly includes a transmission shaft 19 that is vertically rotatable and arranged on the outside of the transmission cavity, a first pinion 23 that is fixedly sleeved on the upper part of the shaft body of the transmission shaft 19, and a second large gear 22 that is fixedly sleeved on the lower shaft body of the transmission shaft 19. The bottom end of the top shaft 20 is movably penetrated into the transmission cavity and is fixedly sleeved with a first large gear 21 that meshes with the first pinion 23. The top end of the mixing shaft 10 is movably penetrated into the transmission cavity and is fixedly sleeved with a second pinion 24 that meshes with the second large gear 22. The top end of the transmission shaft 19 is coaxially and longitudinally installed with a reduction motor 18, and the reduction motor 18 is located on the top surface of the fixed block; the material guide assembly includes a triangular strip plate that is longitudinally fixed to the top of the fixed plate, a material guide plate 26 that is longitudinally and horizontally arranged below the fixed plate, a return cavity opened in the fixed plate, and a return cavity that is vertically arranged in the return cavity. The three suspension rods 25 at the top and the anti-slip plates fixedly connected to the two suspension rods 25 at the front and rear ends, the suspension rods 25 below the anti-slip plates are all movably sleeved with return springs 27, and the bottom ends of the three suspension rods 25 are all movably penetrated out of the return cavity and are fixedly connected to the guide plate 26; the bottom end of the return spring 27 abuts against the inner bottom surface of the return cavity; both ends of the guide plate 26 are inclined downward toward the mixing shaft 10; through the arrangement of the guide component and the shaking component, it is convenient to effectively break the lumps in the material and shake the material to mix it during the quantitative addition of the material, so as to avoid the segregation of the added gypsum powder; and under the action of the centrifugal force of the mixing shaft 10, the material falling into the mixing box 6 can be thrown to the surroundings; it can further improve the uniformity of the preparation and mixing of the gypsum mortar and the quality of the finished product.

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

[0033] Step 1, firstly, electrically connect the electric telescopic rod 5, the servo motor 14, the drive motor 16 and the reduction motor 18 to the external control device through wires, and then pour the material to be prepared into the lower hopper 7. At this time, one of the U-shaped lower troughs of the lower plate 13 in the fixed feeding component is directly opposite to the drop opening, and the material inside the lower hopper 7 will fill this U-shaped lower trough; 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 when mixing the internal materials, and at the same time add the required sand and gravel and other raw materials inside the mixing box 6, so as to facilitate the dry mixing operation between the materials when adding gypsum powder;

[0034] Step 2, then start the servo motor 14 to drive the discharge tray 13 to rotate, and the rotation of the discharge tray 13 makes it easy to rotate the U-shaped discharge trough filled with materials downward, and then pour the materials quantitatively filled in the U-shaped discharge trough into the discharge pipe 8. When the materials pass through the discharge pipe 8, the crushing shaft 15 is driven to rotate by starting the drive motor 16. Through the mutual meshing of the two transmission gears 17, the two crushing shafts 15 can be rotated in opposite directions, so that the two crushing shafts 15 can crush the agglomerated materials falling from the discharge pipe 8 when rotating inward, and can avoid the situation where the agglomerates in the materials to be added affect the configuration of the gypsum mortar;

[0035] Step 3: After the material is crushed, it will fall on the top of the shaking plate 28 and slide towards the drop port. After the material falls on the top of the shaking plate 28, the reduction motor 18 is started to drive the transmission shaft 19 to rotate. The rotation of the transmission shaft 19 will drive the first small gear 23 and the second large gear 22 to rotate. The meshing of the first small gear 23 and the first large gear 21 can drive the top shaft 20 to rotate. The rotation of the top shaft 20 can make the inclined surface on the shaking plate 28 play a reciprocating top role. The lifting effect can increase the speed of the material sliding off the shaking plate 28, and can play a role of preliminary shaking and mixing in the process of material falling, and through the setting of the closed soft plate 29, it can prevent the material from entering the gap between the raised shaking plate 28 and the discharge pipe 8; because the diameter of the first small gear 23 is one tenth 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 and intermittently shake the shaking plate 28;

[0036] Step 4, the material accelerated by the shaking plate 28 will enter the inside of the discharge port, and then when the material passes through the inside of the discharge port, the fixed plate and the triangular strip plate can cooperate to divert the material falling from the inside of the discharge port, and the diverted falling material will fall on the top of the guide plate 26, and then under the action of the inclined plate bodies at both ends of the guide plate 26, the material discharged from the discharge port can be guided to the spiral blades of the mixing shaft 10; because the diameter of the second large gear 22 on the transmission shaft 19 is ten times greater than the diameter of the second small gear 24, when the second large gear 22 drives the mixing shaft 10 fixedly connected 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, and then the material falling on the spiral blades can be thrown around the material falling into the mixing box 6 under the action of centrifugal force;

[0037] Step five, the raw materials to be mixed and prepared inside the mixing box 6 can be fully stirred by the rotating mixing shaft 10 and the spiral blades. Due to the opposite rotation of the two mixing shafts 10, when the materials inside the mixing box 6 are stirred and mixed, the two mixing shafts 10 can perform opposite flying operations on the materials, which can further improve the uniformity of the preparation and mixing of the gypsum mortar and the quality of the finished product; after the preparation of the gypsum mortar is completed, the electric telescopic rod 5 is started to push the top frame 4 to rise, and then the rising top frame 4 drives the lower hopper 7 and the discharge pipe 8 to rise, so that the mixing shaft 10 is lifted out of the mixing box 6, and then the positioning rotating block 9 on the support column 3 drives the fan-shaped block to deflect outward, 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 description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which 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 frames; 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.

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