Mixed ingredient production system device for foamable mortar production and processing
The mixing system addresses dust leakage and contamination issues by using a closed-top design with a servo motor-driven gear system for foam agent addition and fiber distribution, achieving improved mixing uniformity and quality in sand mortar production.
Patent Information
- Application Number
- CN202510528013.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-07-15
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing foam cement mixers are prone to dust overflow or external impurities entering during the dispensing of raw materials and mixing process, affecting the production environment and product quality.
A mixed batching production system device for foamable mortar production and processing is designed, including a top cover, a gear system driven by a servo motor, a stirring shaft and a stirring blade. Combined with components such as flexible plates and push plates, the uniform spraying of foaming agent and the uniform distribution of basalt fibers are achieved, and fiber cutting and mixing is achieved through the cooperation of worms and cutters.
The uniform spraying of foaming agent is achieved, dust overflow is avoided, the ease of use and maintenance of the equipment is improved, the uniform distribution of basalt fibers in the mortar is enhanced, and the quality and performance of the mortar is improved.
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Figure CN120307472A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mortar production, and specifically to a mixing and batching production system device for the production and processing of foamable mortar. Background Art
[0002] A patent with the publication (announcement) number CN219213619U discloses a foamed cement mixer, which relates to the technical field of foamed cement production. It includes a vertically arranged frame and a mixing tank vertically fixed to the upper part of the frame; the top of the mixing tank is of an open structure; a top cover is provided to cover the open structure of the mixing tank.
[0003] In the above-mentioned prior art, when it is necessary to put foamed cement raw materials into the mixing tank, only the second sealing cover needs to be removed from the feed port to make the feed port in an open state. And when the cement raw materials are stirred and mixed in the mixing tank, a foaming agent needs to be put in, and the second sealing cover still needs to be opened, resulting in the overflow of dust in the tank or the entry of external impurities into the tank. Summary of the Invention
[0004] Therefore, in order to solve the above deficiencies, the present invention provides a mixing and batching production system device for the production and processing of foamable mortar here.
[0005] The present invention is implemented as follows. A mixing and batching production system device for the production and processing of foamable mortar is constructed. The device includes a frame body. A top cover is threadedly connected to the top of the frame body. A feed port is embedded in the top of the top cover, and a discharge pipe is embedded at the other end of the top cover. A servo motor is bolted to the top of the top cover. The output shaft of the servo motor drives a first gear to be rotatably connected to the top cover, and the first gear meshes with and drives a second gear to be rotatably connected to the top cover. It is characterized in that: a connecting shaft is fixedly connected to the center of the bottom of the second gear. The connecting shaft passes through the center of the material receiving circular frame downward and is fixedly connected to a stirring shaft. The stirring shaft drives stirring blades to rotate inside the frame body. A cavity is provided through the center of the second gear. And the cavity runs through the inner centers of the second gear, the connecting shaft and the stirring shaft from top to bottom. A limiting plate is fixedly connected to the side wall of the cavity located inside the stirring shaft and the connecting shaft. A return spring is fixedly connected to the side wall of the limiting plate. The other end of the return spring is fixedly connected to a sliding plate. The sliding plate is slidably connected to the inner side wall of the limiting plate. Multiple groups of flexible plates are respectively fixedly connected to the left and right ends of the sliding plate. The return spring, the sliding plate and the flexible plates form a matching component, and the matching component is arranged at the other end of the limiting plate.
[0006] In a feasible implementation manner, first magnets are respectively fixedly connected to the left and right ends of the bottom of the top cover where the connecting shaft is located.
[0007] In a feasible implementation manner, a discharge valve is embedded at the bottom of the frame body. A confluence frame is fixedly connected to the center of the bottom of the frame body. The inner cavity of the stirring shaft passes through the inner bottom of the frame body and communicates with the inside of the confluence frame. Confluence pipes are connected to the peripheral side walls of the confluence frame. One end of the confluence pipe away from the confluence frame is communicated with a nozzle, and the nozzle is embedded in the inner bottom of the frame body.
[0008] In a feasible implementation manner, a pushing plate is fixedly connected to the side wall of the connecting shaft in the area within the material receiving circular frame. A second magnet is embedded at the bottom of the pushing plate. A bottom plate is fixedly connected to the bottom of the material receiving circular frame. A plurality of embedding grooves are annularly and penetratingly embedded in the bottom plate. A blocking plate is rotatably connected in the embedding groove through a torsion spring.
[0009] In a feasible implementation manner, a conveying frame is embedded at the top of the material receiving circular frame. The inside of the conveying frame is hollow and communicates with the inside of the material receiving circular frame. An outer frame is fixedly connected to the bottom of the top cover. One end of the outer frame away from the conveying frame is communicated with the lower part of the discharge pipe. Pulley wheels are rotatably connected to the left and right ends inside the outer frame. The two pulley wheels are connected by a belt in a transmission manner. A worm gear is rotatably connected to the side wall of the outer frame.
[0010] In a feasible implementation manner, the worm gear is fixedly connected to the center of one of the pulley wheels. The worm gear meshes with a worm. A receiving frame is fixedly connected to the side wall of the outer frame. The worm drives a reciprocating lead screw to be rotatably connected in the receiving frame. The worm is fixedly connected to the bottom of the reciprocating lead screw.
[0011] In a feasible implementation manner, a sliding block on the side wall of the reciprocating lead screw is slidably connected to a chute. The other end of the sliding block away from the reciprocating lead screw is rotatably connected to the side wall of a guide plate. The inner side wall of the guide plate is slidably connected to the side wall of a guide post on the receiving frame. A cutting knife is fixedly connected to the side wall of the guide plate. The top of the reciprocating lead screw is fixedly connected to a receiving shaft.
[0012] In a feasible implementation manner, the other end of the receiving shaft away from the reciprocating lead screw is fixedly connected to the center of a first gear. The other end of the conveying frame away from the material receiving circular frame is embedded in the side wall of the outer frame.
[0013] The present invention has the following advantages: The present invention provides a mixing and batching production system device for the production and processing of foamable mortar by improvement. Compared with the same type of equipment, the following improvements are made:
[0014] For the mixing and batching production system device for the production and processing of foamable mortar according to the present invention, the foaming agent can be conveniently injected into the cavity through the material guiding pipe, and is evenly sprayed into the mortar in the frame body through the confluence pipes and the nozzles, so that when the foaming agent is injected, the whole frame body is in a closed state, avoiding the dust of the mortar stirred in the frame body from overflowing.
[0015] The mixing and batching production system device for producing foaming mortar according to the present invention has a pipe cover at the bottom of the confluence frame, which facilitates the cleaning of the cavity after the injection of the foaming agent is completed, improving the usability and maintainability of the equipment.
[0016] The mixing and batching production system device for producing foaming mortar according to the present invention drives the belt to operate while the stirring blades are stirring, and through the cooperation of the reciprocating lead screw and the cutting knife, the basalt fibers on the belt are cut off, improving the utilization rate of the fibers, ensuring the uniformity of the fiber length, and further improving the quality of the mortar.
[0017] The mixing and batching production system device for producing foaming mortar according to the present invention transports the basalt fibers into the receiving circular frame. Through the cooperation of the pushing plate and the blocking plate, the basalt fibers are evenly distributed in the receiving circular frame and finally fall into the frame body to be mixed with the mortar, improving the uniformity of the distribution of the basalt fibers in the mortar, thereby enhancing the overall performance of the mortar.
[0018] The mixing and batching production system device for producing foaming mortar according to the present invention further drives the flexible plates to squeeze each other as the two sliding plates move relative to each other, so that the foaming agent flowing through the side walls thereof is subjected to shearing and stirring actions, which helps the foaming agent to be more evenly distributed in the mortar, thereby improving the mixing effect of the foaming agent and the mortar.
[0019] The mixing and batching production system device for producing foaming mortar according to the present invention facilitates the automatic secondary processing of the foaming agent and the basalt fibers and the automatic addition thereof into the mortar for mixing during the stirring of the mortar. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is the three-dimensional sectional structure schematic diagram of the present invention;
[0021] Figure 2 is the bottom view of the present invention;
[0022] Figure 3 is the three-dimensional structure schematic diagram of the present invention;
[0023] Figure 4 is the connection relationship structure schematic diagram of the receiving circular frame of the present invention;
[0024] Figure 5 is the bottom view of the receiving circular frame and the top cover of the present invention;
[0025] Figure 6 is the connection relationship structure schematic diagram inside the outer frame of the present invention;
[0026] Figure 7 is the separation structure schematic diagram of the stirring shaft and the limiting plate of the present invention;
[0027] Figure 8 is the Figure 7 schematic enlarged structure diagram at S in
[0028] Figure 9 is the schematic internal structure diagram of the material receiving circular frame of the present invention;
[0029] Figure 10 is the sectional view of the material receiving circular frame of the present invention.
[0030] Wherein: frame body - 1, top cover - 2, feeding port - 3, discharge pipe - 4, servo motor - 5, first gear - 6, second gear - 7, connecting shaft - 71, cavity - 8, first magnet - 9, material receiving circular frame - 10, stirring shaft - 11, stirring blade - 12, limiting plate - 13, return spring - 14, sliding plate - 15, flexible plate - 16, matching component - 17, discharge valve - 111, confluence frame - 112, shunt pipe - 113, spray head - 114, pushing plate - 101, second magnet - 102, bottom plate - 103, embedding groove - 104, outer frame - 41, belt - 42, worm gear - 43, worm - 44, receiving frame - 45, guiding column - 451, reciprocating lead screw - 46, slider - 47, guiding plate - 48, receiving shaft - 49, cutter - 410, conveying frame - 411. Specific embodiments
[0031] The following will be combined with the attached Figures 1-10 The present invention will be described in detail. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0032] Please refer to Figures 1 to 10, A mixing and batching production system device for the production and processing of foamable mortar according to the present invention includes a frame body 1. A top cover 2 is threadedly connected to the top of the frame body 1. A controller is provided on the frame body 1, and the controller is electrically connected to a servo motor 5. A feeding port 3 is embedded in the top of the top cover 2. When mixing mortar, mortar raw materials such as cement mortar and water are poured into the frame body 1 through the feeding port 3. A discharge pipe 4 is embedded at the other end of the top cover 2. A servo motor 5 is bolted to the top of the top cover 2. The output shaft of the servo motor 5 drives a first gear 6 to be rotatably connected to the top cover 2. The output shaft of the servo motor 5 is fixedly connected to the center of the first gear 6. The first gear 6 meshes with and drives a second gear 7 to be rotatably connected to the top cover 2. A connecting shaft 71 is fixedly connected to the center of the bottom of the second gear 7. The connecting shaft 71 passes through the center of the receiving circular frame 10 below and is fixedly connected to a stirring shaft 11. The connecting shaft 71 is rotatably connected to the top and the bottom plate 103 center of the receiving circular frame 10. Stirring blades 12 are fixedly connected to the side of the stirring shaft 11. The stirring shaft 11 drives the stirring blades 12 to rotate inside the frame body 1. A cavity 8 is provided through the center of the second gear 7, the connecting shaft 71, and the stirring shaft 11 from top to bottom; by controlling the servo motor 5 to apply power to drive the first gear 6 to rotate, the first gear 6 meshes with and drives the second gear 7 to rotate. The second gear 7 drives the stirring shaft 11 and the stirring blades 12 to rotate through the connecting shaft 71, and the stirring blades 12 stir and mix the cement mortar inside the frame body 1.
[0033] Specifically, a discharge valve 111 is embedded at the bottom of the frame body 1. The mortar after mixing is discharged outward through the discharge valve 111. A confluence frame 112 is fixedly connected to the center of the bottom of the frame body 1. And the cavity 8 inside the stirring shaft 11 passes through the bottom inside the frame body 1 and is communicated with the inside of the confluence frame 112. A pipe cap is threadedly connected to the bottom of the confluence frame 112. Connecting the pipe cap to the confluence frame 112 makes the bottom of the confluence frame 112 in a closed state;
[0034] In addition, the pipe cap can be separated from the bottom of the confluence frame 112, so that the liquid flowing into the confluence frame 112 from the cavity 8 can flow outward, which is convenient for cleaning the area inside the cavity 8 after the injection of the foaming agent is completed. The four side walls of the confluence frame 112 are all connected with shunt pipes 113. The end of the shunt pipe 113 far from the confluence frame 112 is communicated with a spray head 114, and the spray head 114 is embedded in the bottom inside the frame body 1;
[0035] The cavity 8 penetrates through the inner centers of the second gear 7, the connecting shaft 71, and the stirring shaft 11 from top to bottom, which is convenient for the external foaming agent to be transported to the cavity 8 through a guide pipe (the guide pipe is rotatably connected to the top of the second gear 7), and then passes through the upper and lower ends of the cavity 8 from top to bottom, and is transported into the confluence frame 112, and then flows through the shunt pipes 113 and is transmitted to the inside of the frame body 1 through the spray head 114 for mixing with the mortar. When injecting the foaming agent, the whole frame body 1 is in a closed state to avoid the overflow of the dust of the mortar stirred inside the frame body 1.
[0036] Specifically, at the left and right ends of the connecting shaft 71 at the bottom of the top cover 2, first magnets 9 are fixedly connected respectively.
[0037] Specifically, a limiting plate 13 is fixedly connected to the side wall of the cavity 8 inside the stirring shaft 11 and the connecting shaft 71. A return spring 14 is fixedly connected to the side wall of the limiting plate 13. The other end of the return spring 14 is fixedly connected to a sliding plate 15. The sliding plate 15 is slidably connected to the inner side wall of the limiting plate 13. Multiple groups of flexible plates 16 are fixedly connected to the left and right ends of the sliding plate 15 respectively;
[0038] The return spring 14, the sliding plate 15, and the flexible plates 16 form a matching assembly 17. And the matching assembly 17 is arranged at the other end of the limiting plate 13. There are multiple groups of the return spring 14, the sliding plate 15, the flexible plates 16, and the matching assembly 17, which are arranged at equal intervals at the upper and lower ends of the limiting plate 13. And the multiple groups of sliding plates 15 on the limiting plate 13 are fixedly connected by a connecting rod. The sliding plates 15 on the multiple groups of matching assemblies 17 are fixedly connected by a connecting rod. At the ends of the sliding plates 15 of the matching assembly 17 close to the first magnet 9 and the sliding plates 15, an auxiliary magnet is fixedly connected respectively. The positive poles of the two groups of auxiliary magnets are aligned with the same magnetic poles of the two groups of first magnets 9 respectively, so that the sliding plate 15 approaches the first magnet 9 during rotation. The first magnet 9 repels the auxiliary magnet on the sliding plate 15, pushing the two groups of sliding plates 15 to move in opposite directions, so that the two groups of sliding plates 15 drive the flexible plates 16 to continuously squeeze the foaming agent flowing through the cavity 8.
[0039] Specifically, a pushing plate 101 is fixedly connected to the side wall of the area of the connecting shaft 71 inside the material receiving circular frame 10. A second magnet 102 is embedded at the bottom of the pushing plate 101. A brush is provided at the bottom of the pushing plate 101 for brushing the movement of basalt fibers. A bottom plate 103 is fixedly connected to the bottom of the material receiving circular frame 10. Multiple groups of embedding grooves 104 are annularly and penetratingly embedded in the bottom plate 103. And a blocking plate is rotatably connected in the embedding groove 104 through a torsion spring. The blocking plate is composed of a magnet, and the positive pole of the blocking plate faces upward, and the positive pole of the second magnet 102 faces downward, so that the second magnet 102 pushes the blocking plate to rotate downward when passing above the blocking plate; after the basalt fibers enter the material receiving circular frame 10 through the conveying frame 411, when the connecting shaft 71 rotates, it drives the pushing plate 101 to rotate. The pushing plate 101 pushes the basalt fibers to move in the material receiving circular frame 10. When the second magnet 102 below the pushing plate 101 approaches the embedding groove 104, the second magnet 102 repels the blocking plate in the embedding groove 104, and the blocking plate rotates downward. The basalt fibers sequentially fall downward through the multiple groups of embedding grooves 104 annularly arranged at the bottom of the bottom plate 103 into the frame body 1, so that the basalt fibers can be evenly distributed around the frame body 1 and mixed with the cement mortar.
[0040] Specifically, the top of the material receiving circular frame 10 is embedded in the conveying frame 411. The inside of the conveying frame 411 is hollow and communicates with the inside of the material receiving circular frame 10, facilitating the conveyance of basalt fibers in the conveying frame 411 into the material receiving circular frame 10. The bottom of the top cover 2 is fixedly connected with an outer frame 41. One end of the outer frame 41 away from the conveying frame 411 communicates with the lower part of the discharge pipe 4. The basalt fibers from the outside are put into the outer frame 41 through the discharge pipe 4 and fall onto the belt 42. A partition plate is fixedly connected to the side wall of the outer frame 41 in the middle area of the belt 42. The partition plate contacts the bottom of the upper end area of the belt 42, enabling the belt 42 to be stressed by the partition plate when the cutter 410 cuts the basalt fibers. Pulley wheels are rotatably connected to the left and right ends inside the outer frame 41. The two groups of pulley wheels are connected by a belt 42. A worm gear 43 is rotatably connected to the side wall of the outer frame 41. The worm gear 43 is fixedly connected to the center of one of the pulley wheels. The worm gear 43 meshes with a worm 44. The bottom of the worm 44 is rotatably connected to the side wall of the outer frame 41. A receiving frame 45 is fixedly connected to the side wall of the outer frame 41. The worm 44 drives a reciprocating lead screw 46 to be rotatably connected inside the receiving frame 45. The worm 44 is fixedly connected to the bottom of the reciprocating lead screw 46. A sliding block 47 slides in the chute on the side wall of the reciprocating lead screw 46. The other end of the sliding block 47 away from the reciprocating lead screw 46 is rotatably connected to the side wall of the guide plate 48. A guide post 451 is fixedly connected to the receiving frame 45, and the inner side wall of the guide plate 48 slides on the side wall of the guide post 451 on the receiving frame 45. A cutter 410 is fixedly connected to the side wall of the guide plate 48. The top of the reciprocating lead screw 46 is fixedly connected to a receiving shaft 49. The other end of the receiving shaft 49 away from the reciprocating lead screw 46 is fixedly connected to the center of the first gear 6. The other end of the conveying frame 411 away from the material receiving circular frame 10 is embedded in the side wall of the outer frame 41 and communicates with the inside of the outer frame 41. The upper entrance of the conveying frame 411 is at the same height as the top of the belt 42 and contacts the end of the belt 42. The conveying frame 411 is arranged at an angle of 45 degrees to the horizontal plane, facilitating the basalt fibers conveyed on the belt 42 to be conveyed into the conveying frame 411. While the first gear 6 rotates, it drives the receiving shaft 49 to rotate. The receiving shaft 49 applies power to drive the reciprocating lead screw 46 and the worm 44 to rotate. The worm 44 meshes with and drives the worm gear 43 to rotate. The worm gear 43 drives the pulley wheels to rotate. The pulley wheels drive the belt 42 to rotate. The belt 42 drives the basalt fibers to move. The reciprocating lead screw 46 drives the guide plate 48 to move up and down through the sliding block 47, and the guide plate 48 drives the cutter 410 to move up and down, enabling the cutter 410 to continuously cut the basalt fibers on the belt 42. After the cutting is completed, the basalt fibers enter the material receiving circular frame 10 through the conveying frame 411.
[0041] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Moreover, the standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the descriptions in the specification and the attached drawings. The specific connection manners of each part all adopt conventional means such as bolts, rivets, welding, etc. which are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection manner in the prior art, and will not be elaborated herein.
[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A mixed batching production system device for producing and processing foamable mortar, comprising a frame, a top cover is threadedly connected to the top of the frame, a material inlet is embedded in the top of the top cover, a discharge pipe is embedded in the other end of the top cover, a servo motor is bolted to the top of the top cover, the output shaft of the servo motor drives the first gear to rotate and connect with the top cover, and the first gear is meshed to drive the second gear to rotate and connect with the top cover; It is characterized in that: A connecting shaft is fixedly connected at the center of the bottom of the second gear, and the connecting shaft passes through the center of the receiving frame and is fixedly connected to the stirring shaft. The stirring shaft drives the stirring blade to rotate within the frame. A cavity is provided through the center of the second gear, and the cavity passes through the inner center of the second gear, the connecting shaft and the stirring shaft from top to bottom. A limiting plate is fixedly connected to the side wall of the cavity located in the stirring shaft and the connecting shaft, a return spring is fixedly connected to the side wall of the limiting plate, the other end of the return spring is fixedly connected to the sliding plate, the sliding plate is slidably connected to the inner side wall of the limiting plate, and multiple groups of flexible plates are fixedly connected to the left and right ends of the sliding plate respectively; The return spring, the sliding plate and the flexible plate form a matching component, and the matching component is arranged at the other end of the limiting plate.
2. The mixing and batching production system device for the production and processing of foamable mortar according to claim 1, wherein: The bottom of the top cover is located at the left and right ends of the connecting shaft and is respectively fixedly connected with first magnets.
3. The mixed batching production system device for the production and processing of foamable mortar according to claim 1, wherein: A discharge valve is embedded in the bottom of the frame, a confluence frame is fixedly connected to the center of the bottom circle of the frame, and the cavity in the stirring shaft passes through the bottom of the frame and is connected to the confluence frame. The side walls of the confluence frame are connected to diversion pipes, and the end of the diversion pipe away from the confluence frame is connected to the nozzle, and the nozzle is embedded in the bottom of the frame.
4. A mixing and batching production system device for the production and processing of foamable mortar according to claim 1, characterized in that: A push plate is fixedly connected to the side wall of the connecting shaft located in the area of the receiving circular frame, a second magnet is embedded at the bottom of the pushing plate, a bottom plate is fixedly connected to the bottom of the receiving circular frame, a plurality of sets of embedding grooves are embedded in the bottom plate in a ring shape, and a blocking plate is rotatably connected in the embedding groove through a torsion spring.
5. The mixing and batching production system device for the production and processing of foamable mortar according to claim 1, characterized in that: The top of the material receiving circular frame is embedded in the conveying frame, the inside of the conveying frame is hollow and connected with the inside of the material receiving circular frame, the bottom of the top cover is fixedly connected with an outer frame, the end of the outer frame away from the conveying frame is connected with the bottom of the unloading pipe, the left and right ends of the outer frame are rotatably connected with pulleys, the two sets of pulleys are connected by belt drive, and the side wall of the outer frame is rotatably connected with a worm gear.
6. The mixing and batching production system device for the production and processing of foamable mortar according to claim 5, characterized in that: The worm wheel is fixedly connected to a group of pulleys at the center, the worm wheel is meshed with the worm, the side wall of the outer frame is fixedly connected to a receiving frame, the worm drives the reciprocating screw to rotate in the receiving frame, and the worm is fixedly connected to the bottom of the reciprocating screw.
7. The mixing and batching production system device for the production and processing of foamable mortar according to claim 6, characterized in that: The sliding groove on the side wall of the reciprocating screw is slidably connected to the slider, the other end of the slider away from the reciprocating screw is rotatably connected to the side wall of the guide plate, and the inner side wall of the guide plate is slidably connected to the side wall of the guide column on the receiving frame, the side wall of the guide plate is fixedly connected with a cutter, and the top of the reciprocating screw is fixedly connected to the receiving shaft.
8. The mixing and batching production system device for producing expandable mortar according to claim 7, characterized in that: The other end of the receiving shaft away from the reciprocating screw rod is fixedly connected to the center of the first gear, and the other end of the conveying frame away from the material receiving circular frame is embedded in the side wall of the outer frame.
Citation Information
Patent Citations
Foaming cement mixer
CN219213619U