A novel method and equipment for preparing wall joint filler material

Abstract

This invention belongs to the field of mortar technology, specifically a method and equipment for preparing a novel wall joint filler material. The novel wall joint filler material includes the following raw materials: 42.5R cement; ash granules; manufactured sand; quartz sand; rapid-hardening sulfoaluminate cement; cellulose ether; thixotropic agent; and water-repellent agent. The cellulose ether is hydroxypropyl methylcellulose. Utilizing the water-swelling, high elasticity, and sound-absorbing properties of ash granules, the mortar's deformation resistance, reinforcement capacity, and workability are greatly improved. The addition of rapid-hardening sulfoaluminate cement to the raw materials counteracts the inherent shrinkage of cement mortar, reducing cracking caused by vibration. It also provides sound insulation and noise reduction, as well as micro-expansion characteristics, meeting the needs of different locations for door and window and wall joint filler mortar. The raw materials need to be transported to the construction site; otherwise, if the mortar is pre-prepared, the ash granules will have already absorbed water and saturated, failing to achieve the desired sealing effect.

Description

Technical Field

[0001] This invention belongs to the field of building materials technology, specifically a new type of wall joint filling material and its preparation equipment. Background Technology

[0002] During housing construction, windows are left in the walls for installing doors and windows. These windows are usually larger than the outer perimeter of the doors and windows to facilitate installation. The gaps between the doors / windows and the window frames are filled with building materials. However, for a long time, water leakage between building doors and windows has been a frequent problem, partly due to construction issues and partly due to problems with the sealant used to fill the gaps.

[0003] The selection and quality of the caulking and sealing materials are among the most important factors affecting the quality of door and window projects. Currently, the most commonly used caulking materials between doors / windows and walls are cement mortar and polyurethane foam. However, ordinary cement mortar has poor adhesion and deformation capacity, making it prone to shrinkage and cracking, which can easily lead to leakage.

[0004] Most of the joint filler mortars on the market are cement mortars. While ordinary cement mortars have a certain flexural and compressive strength and good reinforcement performance for windows, they have poor deformation and bonding capabilities, making them prone to cracking and leakage. Moreover, in recent years, the application of new technologies such as aluminum alloy doors and windows and oxidation processes, as well as people's increasing requirements for housing, have placed higher demands on the performance of joint filler mortars.

[0005] Therefore, the present invention provides a novel method and equipment for preparing wall joint filling material. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is: a method for preparing a novel wall joint filler material, wherein the novel wall joint filler material comprises the following raw materials by weight:

[0008] 30-40 parts of 42.5R cement;

[0009] 10-20 parts of cork bark granules;

[0010] 30-40 parts of manufactured sand;

[0011] 20-30 parts of quartz sand;

[0012] 5-10 parts of rapid-hardening sulfoaluminate cement;

[0013] The diameter of the cork bark particles is 3-5 mm;

[0014] The method for preparing the novel wall joint filler material includes the following steps:

[0015] S1: Raw material preparation, preparation of cork bark granules, the cork bark granules are punched out from the cork bark raw material using a new type of wall joint filling material preparation equipment, then crushed, collected, dried and stored for later use.

[0016] S2: Material preparation, transporting raw materials to the door and window filling construction site, drying and sealing the raw materials before construction;

[0017] S3: To prepare the new wall joint filling material at the construction site, put 42.5R cement, manufactured sand, quartz sand and rapid hardening sulfoaluminate cement into a Shuanglong mixing mixer, add water and mix for 1-2 minutes. Then put the pine bark particles into the Shuanglong mixing mixer and mix again for 1-2 minutes to obtain the new wall joint filling material.

[0018] Preferably, the novel wall joint filler material further includes the following raw materials by weight:

[0019] Cellulose ether 0.1–0.2 parts;

[0020] Thixotropic agent 0.7-0.9 parts;

[0021] 0.8–1.5 parts of water-repellent agent;

[0022] The cellulose ether is hydroxypropyl methylcellulose; the thixotropic agent is a 3:1 composite of bentonite and starch ether; and the hydrophobic agent is a 1:3 composite of organosilicon powder and adhesive powder.

[0023] A novel wall joint filler material preparation device, adapted to the aforementioned novel wall joint filler material preparation method, comprises a support plate, a punching mechanism, and a feeding mechanism. The feeding mechanism includes upper and lower guide rollers, the ends of which are rotatably connected to the support plate. A double-layered guide plate is provided on one side of each guide roller, with one edge of the guide plate close to the gap between the two guide rollers. Above the guide plate is the punching mechanism, which includes a horizontal plate, cylinders, and a connecting plate. The horizontal plate is fixed to one side of the support plate, and multiple cylinders are fixed to the horizontal plate. The piston rods of the cylinders vertically penetrate the horizontal plate and are fixed to the connecting plate. A punching blade and multiple punching rods are fixed to the lower surface of the connecting plate. The punching rods are arranged in a row and fixed to the connecting plate, close to the guide rollers. The punching rods penetrate through holes in the guide plate vertically. A punching blade is located on one side of each punching rod, with its lower edge penetrating through strip-shaped holes in the guide plate vertically. The guide roller is connected to a motor at its end, which drives the guide roller to rotate clockwise. The bark is fed between the guide rollers, and then the guide rollers rub the bark into the guide plate. At this time, the cylinder drives the punching rod and the cutting blade to move up and down alternately through the connecting plate. The punching rod punches holes in the bark and then pushes it forward. The cutting blade cuts the bark into strips. At this time, each strip of bark has holes. Then the strips of bark are broken into granules. Finally, the granules with a diameter of 3-5mm are selected through screening. The guide roller pushes the bark into the guide plate, and the bark is restricted. Then, the punching rod punches holes, so that the bark granules have holes. Even if the strips of bark are broken into granules, the surface of the granules still has holes, or incomplete holes. After these holes are mixed with the slurry, the solidified slurry can still wrap the bark granules, which can still improve the adhesion and solidity of the new wall grout.

[0024] Preferably, the other side of the guide roller is a feeding mechanism; the feeding mechanism includes upper and lower clamping plates, one end of which is close to the middle of the two guide rollers. Multiple strip-shaped through slots are evenly opened in the width direction of the two clamping plates, and the through slots rotatably connect to a rotating roller. A sprocket is provided at the end of the rotating roller, and the sprocket on the same side of the clamping plates is connected via a chain drive. When the guide roller rotates, the friction between it and the bark pushes the bark into the guide plate. However, this makes the feeding of the bark relatively dangerous, hence the feeding mechanism. Workers place the bark horizontally at the entrance of the clamping plate, and the rotating roller, through the sprocket… The chain rotates in conjunction with the bark, with one sprocket connected to the output of an external motor. The rotating rollers rub the bark between the clamps, and then the subsequent rotating rollers push the bark forward, pushing it into the guide rollers. The rotating rollers not only rub the bark forward, reducing the safety risks of feeding, but also remove debris from the surface of the bark. Debris and decaying matter on the surface of the bark are squeezed and crushed when rubbed by the rotating rollers. Some debris falls through the channel, and some debris is separated during the later screening process, reducing the amount of debris mixed into the mortar, which would affect the adhesion and curing strength of the mortar.

[0025] Preferably, the four right-angled positions of the clamping plates are connected together vertically by tension springs, and the inner ring of the tension springs is threaded through a screw. The end of the screw passes through the four right-angled positions of the clamping plates and is fixed to the clamping plates by nuts. The bark has a different thickness. By setting clamping plates with adjustable vertical spacing, the surface of the roller can effectively press the bark surface. When the bark with a thicker thickness is placed between the clamping plates, the clamping plates move away from each other and stretch the tension springs. When the bark with a thinner thickness is placed between the clamping plates, the tension springs pull and squeeze the clamping plates to ensure that the bark moves forward by rubbing and that the adhering substances on the surface of the bark are cleaned away.

[0026] Preferably, an air passage is formed inside the clamping plate. The air inlet of the air passage is connected to an external air pump through a pipe, and the air outlet of the air passage is located on the opposite surfaces of the two clamping plates. The air pump injects external hot steam into the air passage through the pipe, and the gas is discharged from the air outlet of the air passage. It acts on the bark surface to heat and soften the bark, which helps the bark to be punched and cut, reduces the pressure of the cylinder operation, and at the same time, the airflow of hot steam impacts the bark surface, further cleaning the debris and decay on the bark surface.

[0027] Preferably, a shredding mechanism is provided below one side of the guide plate; the shredding mechanism includes a feeding roller and a rod; the end of the feeding roller is rotatably connected to a support plate, and multiple rings of levers are evenly distributed on the surface of the feeding roller. The ends of the levers are arc-shaped and bent outwards, extending into a notch on the lower surface of the guide plate. One side of the feeding roller is a rod, and both ends of the rod are rotatably connected to the support plate. The surface of the rod is provided with multiple crushing blades, with a spacing of 3-5 mm between adjacent crushing blades; the ends of the feeding roller and the rod are connected to the output end of an external motor, and the feeding roller rotates clockwise. As the bark moves, the rod also rotates clockwise, pushing out strips of bark from the guide plate. When it reaches the end of the guide plate, the feed roller rotates, driving the lever to rotate as well. The end of the lever rotates into the notch and pulls the bark from the end of the guide plate. Then, constrained by the shape of the lever end, the bark is rotated to the position of the rod. The rod rotates and drives the crushing blade to rotate. The crushing blade cuts and shreds the bark, evenly cutting and crushing the strips of bark into particles 3-5mm long. This makes the diameter of the shredded bark particles more uniform, compared to later crushing.

[0028] Preferably, the feeding roller has arc-shaped plates below both ends, close to the end surface of the feeding roller, and the arc-shaped plates are fixed to the support plate. The end of the arc-shaped plates has an inlet slope. Multiple notches are evenly distributed on the outer circumference of the feeding roller's end. Each notch contains a wedge-shaped extrusion block. The notches at both ends of the feeding roller are interconnected. The extrusion blocks at both ends of the feeding roller are arranged opposite each other, and a connecting rod is provided between the same pair of extrusion blocks. The end of the connecting rod passes through the notch and is fixed to the extrusion block. The extrusion block is slidably connected to the notch by a spring. An extrusion rod is fixed to one side of the extrusion block. The end of the extrusion rod passes through the outside of the feeding roller and extends to a slot in the middle of the lever. The end of the extrusion rod is C-shaped. When the feeding roller rotates, the extrusion block rotates synchronously with the feeding roller. When the extrusion block... When the pressure block presses against the concave surface of the arc-shaped plate from the entrance slope, the pressure block compresses the spring and retracts into the notch. The two opposing pressure blocks are connected by a connecting rod and retract into the notch simultaneously, driving the pressure rod to retract into the notch. At this time, the gap between the end of the pressure rod and the end of the lever increases. Then, the end of the lever is inserted into the notch and pulls out the strip-shaped bark, placing it in the arc-shaped concave surface at the end of the lever. When the pressure block detaches from the arc-shaped plate, the pressure block and pressure rod return to their original positions. The end of the pressure rod presses against the strip-shaped bark, tightly clamping the bark in the gap between the end of the pressure rod and the end of the lever. This prevents the bark from detaching from the end of the lever due to its own weight when the lever rotates, thus preventing the cutting blade from failing to reach the bark and causing ineffective cutting and breaking of the strip-shaped bark.

[0029] Preferably, the crushing blades on the surface of the rod are staggered in the direction of rotation; the crushing blades are arranged in an array on the rod so that the crushing blades in front of the rotation direction cut and crush different positions on the strip of bark one by one, and each part of the bark is cut by force one by one. If the crushing blades are placed in the same row, the crushing blades in the same row will have difficulty cutting and crushing the bark, and will easily break the bark into segments, failing to effectively cut and crush it into bark particles with a length of 3-5mm.

[0030] Preferably, the feed end of the clamp is flared; the flared design increases the space for feeding the bark, making it easier for workers to feed the bark.

[0031] The beneficial effects of the present invention are as follows:

[0032] 1. The present invention discloses a novel wall joint filler material and its preparation method. The raw materials contain fast-hardening sulfoaluminate cement, which can counteract the shrinkage inherent in cement mortar, reduce cracking caused by vibration, and also has certain sound insulation and noise reduction capabilities and micro-expansion characteristics, meeting the needs of different places for door and window and wall joint filler mortar. The raw materials need to be transported to the construction site; otherwise, if the mortar is prepared in advance, the cork bark particles will have already absorbed water and expanded to saturation, failing to achieve the effect of impact sealing. Cork bark is oak bark. By opening holes in the cork bark, the cork bark particles can adhere to the mortar more stably after mixing with the mortar. Because the mortar spreads into the holes after opening, the mortar will wrap the cork bark particles after drying and solidification, thereby increasing the bonding strength between the cork bark particles.

[0033] 2. The present invention discloses a novel wall grouting material and its preparation method. A guide roller pushes bark into a guide plate, where the bark is confined. Then, a punching rod punches holes in the bark, resulting in pores in the bark particles. Even if the strip-shaped bark is broken into particles, the surface of the particles still has pores, or incomplete pores. When these pores are mixed with the grout, the solidified grout can still encapsulate the bark particles, thus improving the adhesion and solidity of the novel wall grouting material. Attached Figure Description

[0034] The invention will now be further described with reference to the accompanying drawings.

[0035] Figure 1 This is a flowchart of the preparation method of the novel wall joint filling material in this invention;

[0036] Figure 2 This is a perspective view of the punching equipment in this invention;

[0037] Figure 3 This is a perspective view of the guide plate in this invention;

[0038] Figure 4This is a cross-sectional view of the guide plate in this invention;

[0039] Figure 5 This is a perspective view of the feeding roller in this invention;

[0040] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0041] Figure 7 This is a cross-sectional view of the feed roller in this invention;

[0042] Figure 8 yes Figure 7 Enlarged view of a section at point B in the middle;

[0043] Figure 9 This is a perspective view of the rod in this invention;

[0044] Figure 10 This is a three-dimensional view of the fit between the airway and the clamp in this invention;

[0045] Figure 11 This is a perspective view of the clamping plate in this invention;

[0046] In the diagram: 1. Punching equipment; 2. Support plate; 3. Guide roller; 4. Guide plate; 5. Horizontal plate; 6. Cylinder; 7. Connecting plate; 8. Punching cutter; 9. Punching rod; 10. Through hole; 11. Strip hole; 12. Clamping plate; 13. Rotary roller; 14. Tension spring; 15. Screw; 16. Air passage; 17. Feeding roller; 18. Rod body; 19. Pulling rod; 20. Notch; 21. Crushing blade; 22. Arc plate; 23. Inlet slope; 24. Notch; 25. Extrusion block; 26. Connecting rod; 27. Extrusion rod; 28. Through groove. Detailed Implementation

[0047] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0048] A novel wall grouting material is prepared by the following method: 40 parts of 42.5R cement, 10 parts of ash veneer granules, 30 parts of manufactured sand, 25 parts of quartz sand, 5 parts of rapid-hardening sulfoaluminate cement, 0.1 parts of cellulose ether, 0.9 parts of thixotropic agent, and 0.8 parts of water-repellent agent.

[0049] The above materials are pre-mixed to form a composite additive material. This is then added to a Shuanglong mixing mixer along with the other materials in the specified weight ratio, and mixed for 1-3 minutes to obtain a new type of wall grouting material.

[0050] Mix it with an appropriate amount of water, and then fill the gaps. Example

[0051] A novel wall grouting material is prepared by the following method: 35 parts of 42.5R cement, 15 parts of ash veneer granules, 35 parts of manufactured sand, 20 parts of quartz sand, 8 parts of rapid-hardening sulfoaluminate cement, 0.1 parts of cellulose ether, 0.9 parts of thixotropic agent, and 1 part of water-repellent agent.

[0052] The above materials are pre-mixed to form a composite additive material. This is then added to a Shuanglong mixing mixer along with the other materials in the specified weight ratio, and mixed for 1-3 minutes to obtain a new type of wall grouting material.

[0053] Mix it with an appropriate amount of water, and then fill the gaps. Example

[0054] A novel wall grouting material is prepared by the following method: 30 parts of 42.5R cement, 20 parts of ash veneer granules, 30 parts of manufactured sand, 20 parts of quartz sand, 10 parts of rapid-hardening sulfoaluminate cement, 0.1 parts of cellulose ether, 0.9 parts of thixotropic agent, and 1.5 parts of water-repellent agent.

[0055] The above materials are pre-mixed to form a composite additive material. This is then added to a Shuanglong mixing mixer along with the other materials in the specified weight ratio, and mixed for 1-3 minutes to obtain a new type of wall grouting material.

[0056] Verification Example:

[0057] Table 1 shows the test results of the novel wall joint filler materials in Examples 1-3.

[0058] Example 1 Example 2 Example 3 14-day tensile bond strength / MPa 1.5 1.3 1.0 wet density kg / m³ 1400 1280 1100 28-day compressive strength / MPa 22.5 20.3 18.3 28-day shrinkage rate / % 0.03 0.01 0

[0059] As shown in Table 1, this novel wall joint filler material exhibits excellent tensile bonding ability, high impermeability, and good reinforcement and deformation resistance. Ordinary cement mortar has a 28-day shrinkage rate of approximately 0.2%, but in this paper, the shrinkage rate decreases with the addition of sapwood veneer particles and rapid-hardening sulfoaluminate cement, effectively offsetting the inherent shrinkage caused by vibration and cement mortar. Therefore, the novel wall joint filler material prepared in this invention possesses excellent bonding and impermeability; it can effectively offset cracking caused by vibration and cement; it has a low shrinkage rate and is not prone to cracking; it has sound insulation and noise reduction capabilities; and it is easy to construct, with a wet density lower than ordinary mortar, preventing sagging and dripping.

[0060] The novel wall joint filler material provided above is prepared by the following method, which can further improve the strength and adhesion of the novel wall joint filler material; the specific implementation method is as follows:

[0061] A method for preparing a novel wall joint filler material, wherein the novel wall joint filler material comprises the following raw materials by weight:

[0062] 30-40 parts of 42.5R cement;

[0063] 10-20 parts of cork bark granules;

[0064] 30-40 parts of manufactured sand;

[0065] 20-30 parts of quartz sand;

[0066] 5-10 parts of rapid-hardening sulfoaluminate cement;

[0067] The diameter of the cork bark particles is 3-5 mm;

[0068] The method for preparing the novel wall joint filler material includes the following steps:

[0069] S1: Raw material preparation, preparation of cork bark granules, the cork bark granules are punched out from the cork bark raw material using a new type of wall joint filling material preparation equipment, then crushed, collected, dried and stored for later use.

[0070] S2: Material preparation, transporting raw materials to the door and window filling construction site, drying and sealing the raw materials before construction;

[0071] S3: To prepare the new wall joint filling material at the construction site, put 42.5R cement, manufactured sand, quartz sand and rapid hardening sulfoaluminate cement into a Shuanglong mixing mixer, add water and mix for 1-2 minutes. Then put the pine bark particles into the Shuanglong mixing mixer and mix again for 1-2 minutes to obtain the new wall joint filling material.

[0072] Preferably, the novel wall joint filler material further includes the following raw materials by weight:

[0073] Cellulose ether 0.1–0.2 parts;

[0074] Thixotropic agent 0.7-0.9 parts;

[0075] 0.8–1.5 parts of water-repellent agent;

[0076] The cellulose ether is hydroxypropyl methylcellulose; the thixotropic agent is a 3:1 composite of bentonite and starch ether; and the hydrophobic agent is a 1:3 composite of organosilicon powder and adhesive powder.

[0077] The preparation of cork bark particles involves a novel wall mortar preparation device, specifically a punching device 1, which punches multiple holes in the cork bark. This punching device 1 can be described in detail below. Figures 2-11 As shown:

[0078] The punching equipment 1 specifically includes a support plate 2, a punching mechanism, and a feeding mechanism; the feeding mechanism includes two guide rollers 3, the ends of which are rotatably connected to the support plate 2. A double-layered guide plate 4 is provided on one side of the guide rollers 3, with one edge of the guide plate 4 close to the gap between the two guide rollers 3. Above the guide plate 4 is the punching mechanism, which includes a horizontal plate 5, cylinders 6, and a connecting plate 7; the horizontal plate 5 is fixedly connected to one side of the support plate 2, and multiple cylinders 6 are fixedly connected to the horizontal plate 5. The piston rod of 6 extends vertically downward through the horizontal plate 5 and is fixedly connected to the connecting plate 7. A punching blade 8 and multiple punching rods 9 are fixedly connected to the lower surface of the connecting plate 7. The punching rods 9 are arranged in a row and fixed to the connecting plate 7. The punching rods 9 are close to the guide roller 3 and pass vertically through through holes 10 opened on the guide plate 4. One side of the punching rod 9 is the punching blade 8, and the lower edge of the punching blade 8 passes vertically through strip-shaped holes 11 opened on the guide plate 4. A motor is connected to the end of the guide roller 3, driving the guide roller 3 clockwise. The bark is rotated and fed between guide rollers 3. The guide rollers 3 then roll the bark into guide plate 4. At this time, cylinder 6 drives punching rod 9 and cutting blade 8 to move up and down alternately through connecting plate 7. Punching rod 9 punches holes in the bark and then continues to move forward. Cutting blade 8 cuts the bark into strips. Each strip of bark has holes. The strips of bark are then broken into granules. Finally, the granules are screened and selected to have a diameter of 3-5 mm. The guide roller 3 pushes the bark into the guide plate 4, where the bark is confined. Then, it passes through the punching rod 9, which punches holes in the bark. The diameter of the punching rod 9 is 1.5mm, so that the bark particles have holes. Even if the bark strips are broken into particles, the surface of the particles still has holes or incomplete holes. After these holes are mixed with the slurry, the solidified slurry can still wrap the bark particles, which can still improve the adhesion and solidity of the new wall grouting material.

[0079] Reference Figure 2 and Figure 10The other side of the guide roller 3 is a feeding mechanism; the feeding mechanism includes two clamping plates 12, one end of which is close to the middle of the two guide rollers 3. Multiple strip-shaped through slots 28 are evenly opened in the width direction of the two clamping plates 12. The through slots 28 are rotatably connected to a rotating roller 13. A sprocket is provided at the end of the rotating roller 13. The sprockets on the same side of the clamping plates 12 are connected via chain drive. When the guide roller 3 rotates, the friction between it and the bark pushes the bark into the guide plate 4. This makes the bark feeding action relatively dangerous, hence the feeding mechanism. Workers place the bark horizontally at the entrance of the clamping plate 12, and the rotating roller 13... The bark is rotated by a sprocket and a chain, with one sprocket connected to the output of an external motor. The rotating roller 13 rotates and rubs the bark between the clamping plates 12. Then, the subsequent rotating roller 13 pushes the bark forward and into the guide roller 3. The rotating roller 13 is not only used to rub the bark forward and reduce the safety risk of feeding, but also to remove debris from the surface of the bark. When the bark is rubbed by the rotating roller 13, the debris and rotten matter on the surface of the bark are squeezed and crushed. Some of the debris falls through the channel 28, and some of the debris is separated during the later screening, reducing the amount of debris mixed into the mortar and affecting the adhesion and curing strength of the mortar.

[0080] Reference Figure 2 The four right-angled positions of the clamping plate 12 are connected together by tension springs 14, and the inner ring of the tension spring 14 is penetrated by a screw 15. The end of the screw 15 penetrates the four right-angled positions of the clamping plate 12 and is limited on the clamping plate 12 by a nut. The bark has different thicknesses. By setting the clamping plate 12 with adjustable vertical spacing, the surface of the roller 13 can effectively press the bark surface. When the bark with a thicker thickness is placed between the clamping plates 12, the clamping plates 12 move away from each other and stretch the tension springs 14. When the bark with a thinner thickness is placed between the clamping plates 12, the tension springs 14 pull and squeeze the clamping plates 12 to ensure that the bark moves forward by rubbing and to clean the adhering substances on the surface of the bark.

[0081] Reference Figure 10 The clamping plate 12 has an air passage 16 inside. The air inlet of the air passage 16 is connected to an external air pump through a pipe. The air outlet of the air passage 16 is located on the opposite surfaces of the two clamping plates 12. The air pump injects external hot steam into the air passage 16 through the pipe. The gas is discharged from the air outlet of the air passage 16 and acts on the bark surface to heat and soften the bark, which helps the bark to be punched and cut, reducing the operating pressure of the cylinder 6. At the same time, the airflow of hot steam impacts the bark surface, further cleaning the bark surface debris and decay.

[0082] Reference Figure 2 , Figure 4 and Figure 5A shredding mechanism is provided below one side of the guide plate 4; the shredding mechanism includes a feeding roller 17 and a rod 18; the end of the feeding roller 17 is rotatably connected to the support plate 2, and multiple turns of lever 19 are evenly provided on the surface of the feeding roller 17. The ends of the lever 19 are arc-shaped and bent outwards, and the ends of the lever 19 extend into the notch 20 on the lower surface of the guide plate 4. One side of the feeding roller 17 is the rod 18, and both ends of the rod 18 are rotatably connected to the support plate 2. The surface of the rod 18 is provided with multiple crushing blades 21, and the spacing between adjacent crushing blades 21 is 3-5mm; the ends of the feeding roller 17 and the rod 18 are connected to the output end of an external motor. Rotating clockwise, the rod 17 also rotates clockwise, pushing out strip-shaped bark from the guide plate 4. When it moves to the end of the guide plate 4, the feed roller 17 rotates, driving the lever 19 to rotate. The end of the lever 19 rotates into the notch 20 and pulls out the bark from the end of the guide plate 4. Then, under the constraint of the shape of the end of the lever 19, the bark is rotated and brought into the position of the rod 18. The rod 18 rotates and drives the crushing blade 21 to rotate. The crushing blade 21 cuts and shreds the bark, evenly cutting and crushing the strip-shaped bark into particles 3-5mm long, making the diameter of the shredded bark particles more uniform. Compared with later crushing, the particle diameter is more uniform.

[0083] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8The feeding roller 17 has arc-shaped plates 22 below both ends, close to the end surface of the feeding roller 17, and the arc-shaped plates 22 are fixed to the support plate 2. The end of the arc-shaped plates 22 is provided with an inlet slope 23. Multiple notches 24 are evenly opened on the outer ring of the end of the feeding roller 17. Each notch 24 is provided with a wedge-shaped extrusion block 25. The notches 24 at both ends of the feeding roller 17 are interconnected. The extrusion blocks 25 at both ends of the feeding roller 17 are arranged opposite each other, and a connecting rod 26 is provided between the same pair of extrusion blocks 25. The end of the connecting rod 26 passes through the notch 24 and is fixed to the extrusion block 25. The extrusion block 25 is slidably connected to the notch 24 by a spring. An extrusion rod 27 is fixed to one side of the extrusion block 25. The end of the extrusion rod 27 passes through the outside of the feeding roller 17 and extends to the middle position of the lever 19 to open a through groove 28. The end of the extrusion rod 27 is C-shaped. When the feeding roller 17 rotates, the extrusion block 25 rotates synchronously with the feeding roller 17. As the extrusion block 25 rotates, it presses against the concave surface of the arc plate 22 from the inlet slope 23. The extrusion block 25 compresses the spring and retracts into the notch 24. The two opposing extrusion blocks 25 are connected by the connecting rod 26 and retract into the notch 24 simultaneously, driving the extrusion rod 27 to retract into the notch 24. At this time, the gap between the end of the extrusion rod 27 and the end of the lever 19 increases. Then, the end of the lever 19 is embedded in the notch 20 and pulls out the strip-shaped bark, placing it in the arc-shaped concave surface at the end of the lever 19. When the extrusion block 25 disengages from the arc plate 22, the extrusion block 25 and the extrusion rod 27 return to their original positions. The end of the extrusion rod 27 presses against the strip-shaped bark, tightly clamping the bark in the gap between the end of the extrusion rod 27 and the end of the lever 19. This prevents the bark from disengaging from the end of the lever 19 due to its own weight when the lever 19 rotates, thus preventing the breaking blade 21 from failing to reach the bark and causing ineffective cutting and breaking of the strip-shaped bark.

[0084] Reference Figure 4 and Figure 9 The crushing blades 21 on the surface of the rod 18 are arranged in an alternating pattern in the direction of rotation. The crushing blades 21 are arranged in an array on the rod 18 so that the crushing blades 21 in front of the rotation direction cut and crush different positions on the strip of bark one by one. Each part of the bark is cut by force one by one. If the crushing blades 21 are placed in the same row, it is difficult for the crushing blades 21 in the same row to cut and crush the bark. It is easy to break the bark into segments and fail to effectively cut and crush it into bark particles with a length of 3-5mm.

[0085] Reference Figure 11 The feed end of the clamp 12 is flared; the flared design increases the space for feeding the bark, making it easier for workers to feed the bark.

[0086] Working principle: Utilizing the properties of cork bark particles—their expansion upon contact with water, high elasticity, and sound absorption—significantly enhances the mortar's resistance to deformation, reinforcement capacity, and workability. The addition of rapid-hardening sulfoaluminate cement in the raw materials counteracts the inherent shrinkage of cement mortar, reducing vibration-induced cracking. It also provides some sound insulation and noise reduction, along with micro-expansion characteristics, meeting the needs of various locations for door, window, and wall grouting mortar. The raw materials need to be transported to the construction site; otherwise, if the mortar is pre-prepared, the cork bark particles will have already absorbed water and saturated, failing to achieve the desired sealing effect.

[0087] Cork bark, also known as oak bark, has pores that allow the bark particles to adhere more stably to the mortar after mixing. Because the mortar spreads into the pores, it coats the bark particles after drying and setting, thus increasing the bonding strength between the particles. Furthermore, oak trees have a unique growth characteristic: after the bark is peeled off, the tree can continue to grow, and when new bark grows back, the process can be repeated multiple times.

[0088] A motor is connected to the end of guide roller 3, driving it to rotate clockwise. Bark is fed between guide rollers 3, which then roll the bark into guide plate 4. At this time, cylinder 6, through connecting plate 7, drives punching rod 9 and cutting blade 8 to move up and down alternately. Punching rod 9 punches holes in the bark and then continues to move forward. Cutting blade 8 cuts the bark into strips, each strip having holes. The strips are then broken into granules and finally... After screening, particles with a diameter of 3-5mm are selected; the guide roller 3 pushes the bark into the guide plate 4, where the bark is confined, and then punches holes through the punching rod 9, so that the bark particles have pores. Even if the strip-shaped bark is broken into particles, the surface of the particles still has pores, or incomplete pores. After these pores are mixed with the slurry, the solidified slurry can still wrap the bark particles, which can still improve the adhesion and solidity of the new wall grouting material.

[0089] When the guide roller 3 rotates, it pushes the bark into the guide plate 4 through friction with the bark. However, this makes the feeding of the bark relatively dangerous. Therefore, a feeding mechanism is set up. The workers place the bark horizontally at the entrance of the clamping plate 12. The rotating roller 13 rotates through the cooperation of a sprocket and a chain. One of the sprockets is connected to the output end of an external motor. The rotating roller 13 rubs the bark between the clamping plates 12. Then, the subsequent rotating roller 13 rubs the bark forward and pushes it into the guide roller 3. The setting of the rotating roller 13 is not only to rub the bark forward and reduce the safety risk of feeding, but also to remove debris from the surface of the bark. When the bark is rubbed by the rotating roller 13, the debris and rotten matter on the surface of the bark are squeezed and crushed. Some of the debris falls through the channel 28, and some of the debris is separated during the later screening, reducing the debris from mixing into the mortar and affecting the adhesion and curing strength of the mortar.

[0090] The thickness of the bark varies. By setting adjustable clamps 12 with adjustable vertical spacing, the surface of the roller 13 can effectively press the bark surface. When the bark with a thicker thickness is placed between the clamps 12, the clamps 12 move away from each other and stretch the tension spring 14. When the bark with a thinner thickness is placed between the clamps 12, the tension spring 14 pulls and squeezes the clamps 12 to ensure that the bark moves forward by rubbing and to remove the adhering substances on the surface of the bark.

[0091] The air pump injects external hot steam into the air passage 16 through the pipe. The gas is discharged from the air outlet of the air passage 16 and acts on the bark surface to heat and soften the bark, which helps the bark to be punched and cut, reducing the operating pressure of the cylinder 6. At the same time, the airflow of hot steam impacts the bark surface, which further cleans the bark surface of debris and decay.

[0092] The ends of the feeding roller 17 and the rod 18 are connected to the output end of an external motor. The feeding roller 17 rotates clockwise, and the rod 18 also rotates clockwise. The bark strip is pushed out from the guide plate 4. When it moves to the end position of the guide plate 4, the feeding roller 17 rotates and drives the lever 19 to rotate. The end of the lever 19 rotates into the notch 20 and pulls out the bark from the end of the guide plate 4. Then, under the constraint of the shape of the end of the lever 19, the bark is rotated and brought into the position of the rod 18. The rod 18 rotates and drives the crushing blade 21 to rotate. The crushing blade 21 cuts and shreds the bark, and cuts and shreds the bark strip evenly into particles 3-5mm long, so that the diameter of the shredded bark particles is more uniform. Compared with the later crushing, the particle diameter is more uniform.

[0093] The feeding roller 17 rotates, and the extrusion block 25 rotates synchronously with the feeding roller 17. When the extrusion block 25 presses against the concave surface of the arc plate 22 from the inlet inclined surface 23, the extrusion block 25 compresses the spring and retracts into the notch 24. The two opposing extrusion blocks 25 are connected by the connecting rod 26 and retract synchronously into the notch 24, driving the extrusion rod 27 to retract into the notch 24. At this time, the gap between the end of the extrusion rod 27 and the end of the lever 19 increases. Then, the end of the lever 19 is embedded in the notch 20. The strip of bark is then pulled out and placed in the arc-shaped concave surface at the end of the lever 19. When the squeezing block 25 disengages from the arc plate 22, the squeezing block 25 and the squeezing lever 27 return to their original positions. The end of the squeezing lever 27 squeezes the strip of bark, tightly clamping the bark in the gap between the end of the squeezing lever 27 and the end of the lever 19. This prevents the bark from disengaging from the end of the lever 19 due to its own weight when the lever 19 rotates, thus preventing the breaking blade 21 from failing to reach the bark and causing ineffective cutting and breaking of the strip of bark.

[0094] The crushing blades 21 are arranged in an array on the rod 18, so that the crushing blades 21 in the direction of rotation cut and crush different positions on the strip of bark one by one. Each part of the bark is cut by force one by one. If the crushing blades 21 are placed in the same row, the crushing blades 21 in the same row will have difficulty cutting and crushing the bark, and will easily break the bark into segments, failing to effectively cut and crush it into bark particles with a length of 3-5mm.

[0095] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0096] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel wall joint filler material preparation device, characterized in that: The novel wall grouting material preparation equipment includes a support plate (2), a punching mechanism, and a feeding mechanism; the feeding mechanism includes two guide rollers (3), the ends of which are rotatably connected to the support plate (2). A double-layered guide plate (4) is provided on one side of the guide roller (3), and one edge of the guide plate (4) is close to the gap between the two guide rollers (3). Above the guide plate (4) is a punching mechanism, which includes a horizontal plate (5), a cylinder (6), and a connecting plate (7); the horizontal plate (5) is fixed to one side of the support plate (2), and the horizontal plate (5) has a double-layered guide plate (4) on it. Multiple cylinders (6) are fixedly connected. The piston rod of the cylinder (6) passes vertically downward through the horizontal plate (5) and is fixedly connected to the connecting plate (7). The lower surface of the connecting plate (7) is fixedly connected to a punching knife (8) and multiple punching rods (9). The punching rods (9) are fixedly connected to the connecting plate (7) in a row. The punching rods (9) are close to the guide roller (3). The punching rods (9) pass through the through holes (10) opened on the guide plate (4) from top to bottom. The punching knife (8) is on one side of the punching rod (9). The lower edge of the punching knife (8) passes through the strip hole (11) opened on the guide plate (4) from top to bottom. A shredding mechanism is provided below one side of the guide plate (4); the shredding mechanism includes a feeding roller (17) and a rod (18); the end of the feeding roller (17) rotates on the connecting support plate (2), and multiple turns of levers (19) are evenly provided on the surface of the feeding roller (17). The end of the lever (19) is arc-shaped and bent outward. The end of the lever (19) extends into the notch (20) on the lower surface of the guide plate (4). One side of the feeding roller (17) is a rod (18), and the two ends of the rod (18) are rotatably connected to the support plate (2). The surface of the rod (18) is provided with multiple crushing blades (21), and the interval between adjacent crushing blades (21) is 3-5 mm. The feeding roller (17) has arc-shaped plates (22) below both ends. The arc-shaped plates (22) are close to the end surface of the feeding roller (17). The arc-shaped plates (22) are fixed to the support plate (2). The end of the arc-shaped plates (22) is provided with an inlet slope (23). The outer ring of the end of the feeding roller (17) is evenly provided with multiple notches (24). Each notch (24) is provided with a wedge-shaped extrusion block (25). The notches (24) at both ends of the feeding roller (17) are interconnected. The extrusion blocks (25) at both ends of the feeding roller (17) are connected to each other. 5) Each is arranged opposite to the other, and a connecting rod (26) is provided between the same pair of extrusion blocks (25). The end of the connecting rod (26) passes through the recess (24) and is fixed to the extrusion block (25). The extrusion block (25) is slidably connected to the recess (24) by a spring. An extrusion rod (27) is fixed to one side of the extrusion block (25). The end of the extrusion rod (27) passes through the outside of the feed roller (17) and extends to the middle position of the lever (19) to open a through groove (28). The end of the extrusion rod (27) is C-shaped.

2. The novel wall grouting material preparation equipment according to claim 1, characterized in that: The other side of the guide roller (3) is a feeding mechanism; the feeding mechanism includes two clamping plates (12) at the top and bottom. One end of the clamping plate (12) is close to the middle position of the two guide rollers (3). Multiple strip-shaped through slots (28) are evenly opened in the width direction of the two clamping plates (12). The through slots (28) are rotatably connected to the rotating roller (13). The end of the rotating roller (13) is provided with a sprocket. The sprockets on the same side of the clamping plate (12) are connected by chain drive.

3. The novel wall joint filling material preparation equipment according to claim 2, characterized in that: The four right-angled positions of the clamping plate (12) are connected together by a tension spring (14), and the inner ring of the tension spring (14) is penetrated by a screw (15). The end of the screw (15) penetrates the four right-angled parts of the clamping plate (12) and is limited on the clamping plate (12) by a nut.

4. The novel wall joint filling material preparation equipment according to claim 3, characterized in that: An air passage (16) is opened inside the clamp (12). The air inlet of the air passage (16) is connected to an external air pump through a pipe. The air outlet of the air passage (16) is located on the opposite surface of the two clamps (12).

5. The novel wall grouting material preparation equipment according to claim 1, characterized in that: The crushing blades (21) on the surface of the rod (18) are arranged alternately in the direction of rotation.

6. The novel wall joint filling material preparation equipment according to claim 4, characterized in that: The feed end of the clamp (12) is flared.

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