Double-shaft spiral stirrer for heat insulation board plastering mortar

Abstract

The utility model relates to the technical field of building material processing, in particular to a double-shaft spiral stirring machine for heat insulation board plastering mortar, which comprises a stirring machine body, a driving mechanism and a feed port are respectively arranged at the top of the stirring machine body, and a rotating shaft driven by the driving mechanism to rotate is arranged at the center inside the stirring machine body. The two sides of the rotating shaft are both provided with spiral stirring shafts which are vertically distributed, the upper end and the lower end of the rotating shaft are each provided with a dynamic connecting mechanism composed of a positioning sleeve, a penetrating rod and an elastic limiting piece, and the dynamic connecting mechanisms are used for connecting the upper ends and the lower ends of the spiral stirring shafts; and a material guiding and dispersing seat with an annular structure is arranged at the upper end in the stirring machine body. According to the double-shaft spiral stirrer for the heat insulation board plastering mortar, the mortar mixing uniformity and efficiency can be improved, stirring dead angles are reduced, the consistency and stability of materials are ensured, meanwhile, the construction speed is increased, the construction quality is improved, and the requirement for building energy-saving construction is better met.

Description

Technical Field

[0001] This utility model relates to the field of building material processing technology, specifically a twin-shaft spiral mixer for plastering mortar for insulation boards. Background Technology

[0002] With the continuous advancement of building energy-saving technologies and the increasing awareness of environmental protection, the application of insulation boards in building exterior wall insulation is becoming increasingly widespread, and the performance requirements for insulation materials are also rising. As a crucial bonding layer connecting the insulation board to the wall, the quality of the finishing mortar is not only a vital factor in ensuring the overall stability of the insulation system but also directly affects the building's energy efficiency and long-term durability. Therefore, the uniformity and stability of the finishing mortar are of paramount importance.

[0003] Existing mixing equipment typically uses a single-shaft mixing method when mixing plastering mortar. This method is prone to dead zones during the mixing process, resulting in uneven mixing of the mortar. Furthermore, single-shaft mixers are prone to insufficient mixing when handling large particles, affecting the uniformity and stability of the mortar. Therefore, there is a need for a mixing equipment that can effectively solve the above problems in order to improve the quality of plastering mortar. Utility Model Content

[0004] The purpose of this invention is to provide a twin-shaft spiral mixer for plastering mortar of insulation boards, so as to solve the problems mentioned in the background art that the current mixing equipment usually adopts a single-shaft mixing method when processing plastering mortar. This method has problems such as uneven mixing, easy generation of mixing dead zones, and difficulty in fully processing large particles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a twin-shaft spiral mixer for plastering mortar of insulation boards, comprising a mixer body, a drive mechanism and a feed inlet respectively provided on the top of the mixer body, a rotating shaft driven by the drive mechanism at the center of the mixer body, spiral mixing shafts vertically distributed on both sides of the rotating shaft, and a dynamic connection mechanism consisting of a positioning sleeve, a through rod and an elastic limiting member at both the upper and lower ends of the rotating shaft, the dynamic connection mechanism being used to connect the upper and lower ends of the spiral mixing shaft, and a material guiding and dispersing seat with an annular structure provided at the upper end of the mixer body.

[0006] Preferably, the through rod is horizontally fixedly inserted at the upper and lower ends of the rotating shaft, the through rod is movably inserted inside the positioning sleeve, and the elastic limiting members are symmetrically arranged at the connection points between the positioning sleeve and the through rod at both ends.

[0007] Preferably, a connecting sleeve is provided at the center of the material guiding and dispersing seat, and a plurality of material guiding frames are arranged around the outer wall of the connecting sleeve and the inner wall of the material guiding and dispersing seat. The inside of the material guiding frame is provided with a crushing strip, and a plurality of arc-shaped baffles are provided in the gap between the material guiding frames.

[0008] Preferably, the outer wall of the material guiding and dispersing seat is surrounded by a plurality of crushing teeth, and the outer ends of the crushing teeth have an upwardly inclined angular structure.

[0009] Preferably, scraper plates are provided on both sides of the bottom of the mixer body, and the scraper plates are connected to the bottom of the rotating shaft through elastic connectors.

[0010] Preferably, the spiral blades on the spiral stirring shaft have a plurality of serrations along their edges, and the serrations along the edges of the spiral blades on the spiral stirring shaft are arranged in an alternating trapezoidal structure.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This twin-shaft spiral mixer for insulation board plastering mortar can improve the uniformity and efficiency of mortar mixing, reduce mixing dead zones, ensure the consistency and stability of materials, and improve construction speed and quality, thus better meeting the needs of energy-saving building construction. Through its unique twin-shaft design and dynamic connection mechanism, this twin-shaft spiral mixer for insulation board plastering mortar achieves lateral displacement of the spiral mixing shaft during rotation, enhancing the multi-dimensional mixing effect of materials. Simultaneously, the design of the annular material guide and dispersion seat effectively guides the uniform distribution of materials, avoiding local accumulation and further improving mixing efficiency and quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a twin-shaft spiral mixer for plastering mortar of insulation board according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of the material guiding and dispersing seat of a twin-shaft spiral mixer for plastering mortar of insulation boards according to the present invention.

[0014] Figure 3 This is a schematic diagram of the connection structure between the spiral mixing shaft and the rotating shaft of a twin-shaft spiral mixer for plastering mortar of insulation boards according to the present invention.

[0015] In the diagram: 1. Mixer body; 2. Drive mechanism; 3. Feed inlet; 4. Rotary shaft; 5. Spiral mixing shaft; 6. Material guide and dispersion seat; 61. Connecting sleeve; 62. Material guide frame; 63. Crushing bar; 64. Arc-shaped baffle; 65. Crushing teeth; 7. Positioning sleeve; 8. Through rod; 9. Elastic limiting component; 10. Scraper; 11. Elastic connecting component. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: a twin-shaft spiral mixer for plastering mortar on insulation boards, comprising a mixer body 1, a drive mechanism 2 and a feed inlet 3 respectively provided on the top of the mixer body 1, the drive mechanism 2 consisting of a drive motor and a reducer, two feed inlets 3 symmetrically provided on the top of the mixer body 1, a rotating shaft 4 driven by the drive mechanism 2 at the center inside the mixer body 1, the top end of the rotating shaft 4 being connected to the inner top wall of the mixer body 1 via a bearing, spiral mixing shafts 5 vertically distributed on both sides of the rotating shaft 4, and a dynamic connection mechanism consisting of a positioning sleeve 7, a through rod 8 and an elastic limiting member 9 at both the upper and lower ends of the rotating shaft 4, the dynamic connection mechanism being used to connect the upper and lower ends of the spiral mixing shaft 5 and to mix... The upper part of the machine body 1 is equipped with a ring-shaped material guiding and dispersing seat 6. During operation, the machine body 1, with this structure, can drive the rotating shaft 4 to rotate via the drive mechanism 2. The rotation of the rotating shaft 4 synchronously drives the two spiral stirring shafts 5 to rotate as well. Furthermore, the dynamic connection mechanism consisting of the positioning sleeve 7, the through rod 8, and the elastic limiting member 9 allows the spiral stirring shafts 5 to move laterally within a certain range. This displacement increases the complexity of the material's movement path during the mixing process, further reducing the generation of dead zones in the mixing, thus more effectively handling large particles and ensuring that all components are fully mixed. Simultaneously, the material guiding and dispersing seat 6 effectively guides the material added through the feed inlet 3 to be evenly distributed throughout the entire mixing area, preventing material concentration in one area and thus avoiding incomplete mixing. This design addresses the issues of uneven mixing and insufficient mixing of large particles that are common in existing single-shaft mixing methods, significantly improving the quality and stability of the plastering mortar. The through rod 8 is horizontally fixed at both ends of the rotating shaft 4 and movably inserted inside the positioning sleeve 7. Two elastic limiting elements 9 are provided in each group, symmetrically positioned at the connection between the end of the positioning sleeve 7 and the through rod 8. In this structure, when the drive mechanism 2 rotates the rotating shaft 4, the through rod 8 rotates synchronously with the shaft 4, while the positioning sleeve 7 moves laterally within a certain range in cooperation with the through rod 8. This allows the spiral mixing shaft 5 to not only rotate with the rotating shaft 4 but also to undergo slight lateral displacement under the action of the elastic limiting elements 9. The elastic limiting elements 9 ensure that the through rod 8... The positioning sleeve 7 provides stability and flexibility while limiting the range of lateral displacement to prevent excessive offset from affecting the mixing effect. A connecting sleeve 61 is located at the center of the material guiding and dispersing seat 6, and several material guiding frames 62 are arranged around the outer wall of the connecting sleeve 61 and the inner wall of the material guiding and dispersing seat 6. Breaking strips 63 are welded and fixed inside the material guiding frames 62, and several arc-shaped baffles 64 are provided in the gaps between the material guiding frames 62. The inner ends of the arc-shaped baffles 64 are welded and fixed to the outer wall of the material guiding frames 62. With this structure, when material enters the material guiding and dispersing seat 6 and flows along the inside of the material guiding frames 62, the breaking strips 63 can initially break up larger particles or clumps, ensuring that the material is refined before entering the mixing zone. At the same time, the arc-shaped baffles 64 serve to guide and block.This creates a complex flow path for the material as it passes through the gaps between the guide frames 62, further promoting material dispersion and uniform distribution. This not only avoids uneven mixing caused by material concentration in a certain area, but also significantly improves the initial dispersion effect after the material enters the mixing zone, enhancing overall mixing efficiency and quality, and ensuring the consistency and stability of the finishing mortar. Several breaking teeth 65 are welded and fixed around the outer wall of the guide dispersion seat 6, and the outer ends of the breaking teeth 65 have an upwardly inclined angular structure. This structure allows the material to interact with the guide dispersion when it enters the inner wall of the mixer body 1. When the gap between the outer walls of the bulk seat 6 is clear, these crushing teeth 65 can effectively cut and crush large particles or clumps passing through this area. The upward-sloping angled design of the crushing teeth 65 allows them to actively cut into the material during material flow, increasing the contact opportunities and forces between the material and the crushing teeth 65, thereby more effectively breaking down large particles into smaller particles. Scraper plates 10 are provided on both sides of the bottom of the mixer body 1. Rubber pads are bonded and fixed to the bottom of the scraper plates 10 and adhere to the inner wall of the bottom of the mixer body 1. All components 0 are connected to the bottom end of the rotating shaft 4 via elastic connectors 11. This structure, when the rotating shaft 4 rotates, also drives the scraper 10 to move synchronously via the elastic connectors 11, allowing the scraper 10 to continuously scrape against the inner wall of the mixer body 1, effectively preventing material residue and clumping. This not only ensures the uniform distribution of materials during the mixing process but also ensures that the material can be smoothly discharged from the bottom without clogging the discharge port due to residue, thus achieving smooth discharge and improving overall mixing efficiency and cleanliness. The spiral mixing shaft 5... The spiral blades of the spiral mixing shaft 5 have several serrated edges, and these serrations are arranged in a staggered trapezoidal structure. When the spiral mixing shaft 5 rotates, these serrations can strongly cut and break down the material, especially large particles or clumps, effectively breaking them down into smaller particles. Simultaneously, the trapezoidal serration edges not only enhance the cutting force but also guide the material along the spiral direction during rotation, promoting multi-dimensional mixing in both horizontal and vertical directions and further improving the overall mixing effect.

[0018] Working Principle: When using this twin-shaft spiral mixer for insulation board plastering mortar, the material is first added through two feed ports 3. After entering the mixer body 1, most of the material enters the guide and dispersion seat 6. A portion of the material entering the guide and dispersion seat 6 passes through several guide frames 62. At this point, the crushing bars 63 initially crush larger particles or clumps, and the arc-shaped baffles 64 guide the material to form a complex flow path. When some material enters the gap between the inner wall of the mixer body 1 and the outer wall of the guide and dispersion seat 6, the crushing teeth 65 effectively cut and crush the large particles or clumps in this area. Simultaneously, the driving... The starting mechanism 2 drives the rotating shaft 4 to rotate. As the rotating shaft 4 rotates, it drives the two spiral mixing shafts 5 to rotate synchronously. Due to the dynamic connection mechanism composed of the positioning sleeve 7, the through rod 8, and the elastic limiting member 9, the spiral mixing shaft 5 can move laterally within a certain range, which increases the complexity of the material's movement path during the mixing process and promotes multi-dimensional mixing. Finally, after being fully mixed, the material approaches the bottom of the mixer body 1. At this time, the scraper 10 moves synchronously with the rotating shaft 4 to continuously scrape and ensure smooth discharge. Finally, the mixed mortar is smoothly discharged from the discharge port at the bottom of the mixer body 1, thus completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-shaft spiral mixer for thermal insulation board finishing mortar, comprising a mixer body (1), a driving mechanism (2) and a feeding port (3) are respectively arranged on the top of the mixer body (1), a rotating shaft (4) driven by the driving mechanism (2) is arranged at the center of the inside of the mixer body (1), characterized in that: Both sides of the rotating shaft (4) are provided with vertically distributed spiral stirring shafts (5), the upper and lower ends of the rotating shaft (4) are provided with a dynamic connection mechanism composed of a positioning sleeve (7), a penetrating rod (8) and an elastic limiting piece (9), the dynamic connection mechanism is used for connecting the upper and lower ends of the spiral stirring shaft (5), and the upper end of the inside of the mixer body (1) is provided with a material guiding and dispersing seat (6) in an annular structure.

2. A double shaft spiral mixer for insulating board finishing mortar according to claim 1, characterized in that: The penetrating rod (8) is horizontally fixed and inserted into the upper and lower ends of the rotating shaft (4), the penetrating rod (8) is movably inserted into the inside of the positioning sleeve (7), and the elastic limiting pieces (9) are symmetrically arranged at the connecting positions of the two ends of the positioning sleeve (7) and the penetrating rod (8).

3. A double shaft spiral mixer for insulating board finishing mortar according to claim 1, characterized in that: A connecting sleeve (61) is arranged at the center of the material guiding and dispersing seat (6), a plurality of material guiding frames (62) are arranged around the outer wall of the connecting sleeve (61) and the inner wall of the material guiding and dispersing seat (6), the inside of the material guiding frame (62) is provided with a crushing strip (63), and a plurality of arc-shaped blocking strips (64) are arranged in the gaps between the material guiding frames (62).

4. A double shaft spiral mixer for insulating board finishing mortar according to claim 3, characterized in that: A plurality of crushing teeth (65) are arranged around the outer wall of the material guiding and dispersing seat (6), and the outer ends of the crushing teeth (65) are in an angular upward inclined structure.

5. A double shaft spiral mixer for insulating board finishing mortar according to claim 1, characterized in that: Both sides of the bottom end of the inside of the mixer body (1) are provided with a material scraping plate (10), and the material scraping plates (10) are connected with the bottom end of the rotating shaft (4) through elastic connecting pieces (11).

6. A double shaft spiral mixer for insulating board finishing mortar according to claim 1, characterized in that: The spiral blade edge of the spiral stirring shaft (5) is provided with a plurality of sawteeth, and the spiral blade edge sawteeth of the spiral stirring shaft (5) are in a staggered trapezoidal structure.

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