Crusher with self-adjusting circulation function for dry-mixed mortar

Abstract

The invention discloses a crusher with a self-adjusting circulating function for dry-mixed mortar, and belongs to the technical field of dry-mixed mortar crushing, the crusher comprises a machine body and a circulating screw conveyor arranged on one side of the machine body, the machine body is provided with a crushing roller adjusting mechanism, and the crushing roller adjusting mechanism comprises two sliding rails symmetrically and fixedly installed on the top of the machine body; a plurality of first fixing frames are arranged between the two sliding rails and are fixedly connected, and a plurality of sliding blocks slidably connected with the sliding rails are fixedly installed on the surfaces of the first fixing frames. Through the arrangement of the crushing roller adjusting mechanism, the multiple groups of crushing roller bodies are arranged at the top of the machine body, the gaps of the multiple groups of crushing roller bodies are different, and the positions of the multiple groups of crushing roller bodies can be replaced on the machine body, so that when a dry-mixed mortar raw material is crushed, the crushing roller bodies are replaced according to requirements; and therefore, the crushing granularity of the crushed dry-mixed mortar raw materials meets the use requirement, the use adaptability of the machine body is improved, and diversified production requirements are met.

Description

Technical Field

[0001] This invention relates to a crusher for dry-mixed mortar, and more particularly to a crusher for dry-mixed mortar with a self-regulating circulation function, belonging to the field of dry-mixed mortar crushing technology. Background Technology

[0002] Dry-mixed mortar refers to a granular or powdery material made by physically mixing aggregates, inorganic cementitious materials, and additives in a certain proportion after drying and screening. It is transported to the construction site in bagged or bulk form and can be used directly after being mixed with water. It is also known as dry mortar powder or dry-mixed powder. Some building adhesives also belong to this category. Dry-mixed mortar plays a role in bonding, padding, protection, and decoration in the construction industry by applying thin layers. It is widely used in construction and decoration projects.

[0003] The raw materials for dry-mixed mortar, sand and gravel, are relatively large in their natural state and need to be crushed into powder before they can be used. Existing crushing equipment has a circulation function to circulate and re-crush the larger particles after crushing in order to ensure that the raw materials for dry-mixed mortar are crushed evenly. However, the crushing rollers in the crushing equipment are usually only of one specification. Because the gap between the crushing teeth is fixed, it can only crush the raw materials for dry-mixed mortar into one specification. Since the gap between the teeth on the crushing roller cannot be adjusted, the crusher cannot crush the raw materials for dry-mixed mortar into different required specifications. As a result, the particle size of the crushed raw materials will remain unchanged, making it difficult to meet diverse production needs. Summary of the Invention

[0004] The main objective of this invention is to solve the above-mentioned problems by providing a crusher with a self-regulating circulation function for dry-mixed mortar.

[0005] The objective of this invention can be achieved by adopting the following technical solution: by setting up a crushing roller adjustment mechanism, multiple sets of crushing roller bodies are set on the top of the machine body, and the gaps between the multiple sets of crushing roller bodies are different, and their positions can be changed on the machine body. This allows the crushing roller bodies to be replaced as needed when crushing dry-mixed mortar raw materials, so that the crushed particle size of the dry-mixed mortar raw materials meets the usage requirements, thereby improving the adaptability of the machine body and meeting diverse production needs.

[0006] A crusher for dry-mixed mortar with a self-adjusting circulation function includes a machine body and a circulating screw conveyor disposed on one side thereof. The machine body is provided with a crushing roller adjustment mechanism, which includes two slide rails symmetrically fixedly installed on the top of the machine body. A plurality of first fixing frames are disposed between the two slide rails. The plurality of first fixing frames are fixedly connected and have a plurality of sliders slidably connected to the slide rails fixedly installed on their surfaces. Each of the plurality of first fixing frames has a set of crushing roller bodies disposed inside. The tooth gap on each set of crushing roller bodies decreases sequentially. A fixing block is fixedly installed on one side of the first fixing frame located in the middle. A first motor is fixedly installed at one end of the fixing block. A transmission gear is fixedly installed on the output end of the first motor. Two support rods are disposed on one side of the circulating screw conveyor. A toothed plate that meshes with the transmission gear is fixedly installed between the two support rods.

[0007] Preferably, a first hydraulic rod is fixedly installed on both sides of the machine body, a support plate is fixedly installed on the output end of the first hydraulic rod, a plurality of first limiting rods are fixedly installed on the top of the support plate, and a limiting plate is fixedly installed between the plurality of first fixing frames.

[0008] Preferably, a first fixing plate is fixedly installed on one side of the support plate, and a second fixing plate, which is fixedly connected to the support rod, is fixedly installed on one side of the first fixing plate.

[0009] Preferably, the machine body has two first screens symmetrically arranged inside, two second screens arranged below the two first screens, and two third screens arranged below the two second screens. The pore size of the first screens, second screens and third screens decreases sequentially. The machine body has multiple discharge ports on the side near the circulating screw conveyor that correspond to the positions of the first screens, second screens and third screens.

[0010] Preferably, a plurality of second fixed frames are fixedly installed on the side of the machine body away from the circulating screw conveyor. A second motor is fixedly installed on one side of the second fixed frame. Two screws are symmetrically and movably installed inside the second fixed frame. A bevel gear that meshes with each other is fixedly installed on the output end of the second motor and the end of the two screws that is close to each other. A support frame connected by threads is provided on each of the two screws. A fixed rod is fixedly installed on the end of the support frame that extends to the outside of the second fixed frame. The plurality of fixed rods are fixedly connected to the first screen, the second screen and the third screen respectively.

[0011] Preferably, a support frame is fixedly installed on the machine body on one side of the discharge port, and the bottom of the support frame is fixedly connected to the input end of the circulating screw conveyor. A plurality of second hydraulic rods are symmetrically fixedly installed on one side of the support frame. A plurality of first sealing blocks corresponding to the position of the discharge port are provided inside the support frame, and each first sealing block is fixedly connected to the output end of two adjacent second hydraulic rods.

[0012] Preferably, a first fixing frame is fixedly installed on the surface of the machine body, a filter box is fixedly installed on the first fixing frame, a fan is fixedly installed on one side of the filter box, an air duct is fixedly installed on the other side of the filter box, and one end of the air duct extends to the top of the first fixing frame. A mesh is fixedly installed inside the filter box.

[0013] Preferably, a second fixing frame is fixedly installed on the top of the filter box, a third hydraulic rod is fixedly installed on the second fixing frame, a scraper that fits against the mesh is fixedly installed on the output end of the third hydraulic rod extending into the filter box, a second sealing plate is fixedly installed at the bottom of the scraper, a discharge port is opened at the bottom of the filter box, and a first collection box is provided below the discharge port.

[0014] Preferably, a third fixing frame is fixedly installed on both sides of the first fixing frame, a spring is fixedly installed on one side of the third fixing frame, a second limiting rod is fixedly installed on one end of the spring, and one end of the second limiting rod passes through the spring and extends to the inner side of the third fixing frame. Two fastening blocks that engage with the second limiting rod are symmetrically fixedly installed on the surface of the first collection box. Two positioning rods are fixedly installed on the surface of the bottom of the filter box, and two positioning grooves are opened at the bottom of the first collection box.

[0015] Preferably, a conveyor platform is fixedly installed at the bottom of the machine body, a second collection box is provided on the conveyor platform, two support blocks are symmetrically fixedly installed on the top of the conveyor platform, a baffle is provided on one side of the second collection box, and multiple damping rods are fixedly installed between the two support blocks and the baffle.

[0016] The beneficial technical effects of the present invention are as follows: The crusher with self-adjusting circulation function for dry-mixed mortar provided by the present invention has multiple sets of crushing roller bodies set on the top of the machine body through the setting of the crushing roller adjustment mechanism. The gaps between the multiple sets of crushing roller bodies are different and their positions can be changed on the machine body. This allows the crushing roller bodies to be replaced according to the needs when crushing dry-mixed mortar raw materials so that the crushed particle size of the dry-mixed mortar raw materials meets the usage requirements, thereby improving the adaptability of the machine body and meeting diverse production needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention; Figure 2 This is a side view of the overall structure according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the crushing roller body structure according to a preferred embodiment of the present invention; Figure 4 This is a top view of a first limiting rod structure according to a preferred embodiment of the present invention; Figure 5 This is a cross-sectional view of the body structure according to a preferred embodiment of the present invention; Figure 6 This is a cross-sectional view of the internal structure of the second fixed frame according to a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of the support frame according to a preferred embodiment of the present invention; Figure 8 This is a cross-sectional view of a filter box structure according to a preferred embodiment of the present invention; Figure 9 This is a schematic diagram of the second limiting rod and fastening block structure according to a preferred embodiment of the present invention; Figure 10 A bottom view showing the separation of the positioning rod and positioning groove structure according to a preferred embodiment of the present invention; Figure 11 This is a schematic diagram of a support block and baffle structure according to a preferred embodiment of the present invention.

[0018] In the diagram: 1. Machine body; 2. Circulating screw conveyor; 3. Crushing roller adjusting mechanism; 4. Slide rail; 5. Slider; 6. First fixed frame; 7. Crushing roller body; 8. Fixed block; 9. First motor; 10. Transmission gear; 11. Support rod; 12. Tooth plate; 13. First hydraulic rod; 14. Support plate; 15. First limiting rod; 16. Limiting plate; 17. First fixed plate; 18. Second fixed plate; 19. First screen; 20. Second screen; 21. Third screen; 22. Discharge port; 23. Second fixed frame; 24. Second motor; 25. Screw; 26. Bevel gear; 27. 1. Support frame; 28. Fixing rod; 29. ​​Support frame; 30. Second hydraulic rod; 31. First sealing block; 32. First fixing frame; 33. Filter box; 34. Fan; 35. Air duct; 36. Mesh screen; 37. Second fixing frame; 38. Third hydraulic rod; 39. Scraper; 40. Second sealing plate; 41. Discharge port; 42. First collection box; 43. Third fixing frame; 44. Spring; 45. Second limiting rod; 46. Fastening block; 47. Positioning rod; 48. Positioning groove; 49. Conveying table; 50. Second collection box; 51. Support block; 52. Baffle; 53. Damping rod. Detailed Implementation

[0019] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] like Figures 1-11 As shown, this embodiment provides a crusher with a self-adjusting circulation function for dry-mixed mortar, including a machine body 1 and a circulating screw conveyor 2 disposed on one side thereon. The machine body 1 is provided with a crushing roller adjustment mechanism 3, which includes two slide rails 4 symmetrically fixedly installed on the top of the machine body 1. Multiple first fixing frames 6 are disposed between the two slide rails 4. The multiple first fixing frames 6 are fixedly connected and multiple sliders 5 that are slidably connected to the slide rails 4 are fixedly installed on their surfaces. Each of the multiple first fixing frames 6 is provided with a set of crushing roller bodies 7. The tooth gap on each set of crushing roller bodies 7 decreases sequentially. A fixing block 8 is fixedly installed on one side of the first fixing frame 6 located in the middle. A first motor 9 is fixedly installed on one end of the fixing block 8. A transmission gear 10 is fixedly installed on the output end of the first motor 9. Two support rods 11 are disposed on one side of the circulating screw conveyor 2. A toothed plate 12 that meshes with the transmission gear 10 is fixedly installed between the two support rods 11.

[0021] By setting the crushing roller adjustment mechanism 3, multiple sets of crushing roller bodies 7 are set on the top of the machine body 1, and the gaps between the multiple sets of crushing roller bodies 7 are different. With the circulating screw conveyor 2 as the reference position, the gaps between the multiple sets of crushing roller bodies 7 decrease from right to left, so that the multiple crushing roller bodies 7 are divided into large, medium and small structures, and their positions can be changed on the machine body 1. This allows the crushing roller bodies 7 to be replaced according to the needs when crushing dry-mixed mortar raw materials, so that the crushed particle size of the dry-mixed mortar raw materials meets the usage requirements, improves the adaptability of the machine body 1, and meets diverse production needs.

[0022] In this embodiment, as Figures 1-11 As shown in this embodiment, Figure 2 and Figure 3As shown, first hydraulic rods 13 are fixedly installed on both sides of the machine body 1. A support plate 14 is fixedly installed on the output end of the first hydraulic rod 13. Multiple first limiting rods 15 are fixedly installed on the top of the support plate 14. Limiting plates 16 are fixedly installed between multiple first fixing frames 6. A first fixing plate 17 is fixedly installed on one side of the support plate 14. A second fixing plate 18, which is fixedly connected to the support rod 11, is fixedly installed on one side of the first fixing plate 17. Two first screens 19 are symmetrically arranged inside the machine body 1. Two second screens 20 are arranged below the two first screens 19. Two third screens 21 are arranged below the two second screens 20. The aperture of the first screens 19, second screens 20 and third screens 21 decreases sequentially. The machine body 1 is close to the circulating screw conveyor. On one side of the machine 2, there are multiple discharge ports 22 corresponding to the positions of the first screen 19, the second screen 20, and the third screen 21. On the side of the machine body 1 away from the circulating screw conveyor 2, multiple second fixed frames 23 are fixedly installed. A second motor 24 is fixedly installed on one side of the second fixed frame 23. Two screws 25 are symmetrically and movably installed inside the second fixed frame 23. On the output end of the second motor 24 and the end of the two screws 25 that are close to each other, bevel gears 26 that mesh with each other are fixedly installed. Each screw 25 is provided with a support frame 27 that is connected by threads. On the end of the support frame 27 that extends to the outside of the second fixed frame 23, a fixed rod 28 is fixedly installed. Multiple fixed rods 28 are fixedly connected to the first screen 19, the second screen 20, and the third screen 21 respectively.

[0023] By setting up the first hydraulic rod 13, support plate 14, first limiting rod 15, limiting plate 16, first fixing plate 17, and second fixing plate 18, after adjusting the positions of multiple first fixing frames 6 to replace the crushing roller body 7, the simultaneous activation of two first hydraulic rods 13 enables their output ends to drive the support plate 14 upward, allowing the multiple first limiting rods 15 on the top of the support plate 14 to engage with the limiting plates 16 on the first fixing frames 6, thereby fixing the first fixing frames 6 and preventing them from shaking. Simultaneously, the support rod 11 relies on the first fixing plate 17 and... The second fixed plate 18 is fixedly connected to the support plate 14. After the first hydraulic rod 13 drives the support plate 14 to rise, it can simultaneously drive the support rod 11 and the toothed plate 12 to rise. This causes the toothed plate 12 to separate from the transmission gear 10. Even if the first motor 9 is accidentally started, the transmission gear 10 will not transmit power to the toothed plate 12. This further prevents the first fixed frame 6 from shaking during the crushing process. The system consists of the first screen 19, the second screen 20, the third screen 21, the discharge port 22, the second fixed frame 23, the second motor 24, the screw 25, the bevel gear 26, and the support frame 27. With the setting of the fixing rod 28, multiple first screens 19, second screens 20, and third screens 21 are sequentially arranged from top to bottom inside the machine body 1. The apertures of the first screens 19, second screens 20, and third screens 21 are adapted to the gaps of multiple sets of crushing roller bodies 7. After the first screens 19, second screens 20, and third screens 21 are movably connected on the machine body 1, the rotation of the second motor 24 causes multiple bevel gears 26 to mesh and drive the two screws 25 to rotate. This causes the support frames 27 on the two screws 25 to move away from or towards each other, thereby driving the first screens. 19. The second screen 20 or the third screen 21 are combined and separated inside the machine body 1 so that the corresponding first screen 19, second screen 20 or third screen 21 can be selected for screening according to the crushing roller body 7 used. The large particles of raw material screened out are discharged out through the discharge port 22. At the same time, sealing plates are provided on both sides of the first screen 19, second screen 20 and third screen 21. Whether combined or separated, the sealing plates on both sides of the first screen 19, second screen 20 and third screen 21 can seal the machine body 1 to prevent material from leaking from the gaps.

[0024] In this embodiment, as Figures 1-11As shown, a support frame 29 is fixedly installed on the machine body 1 on one side of the discharge port 22, and the bottom of the support frame 29 is fixedly connected to the input end of the circulating screw conveyor 2. Multiple second hydraulic rods 30 are symmetrically fixedly installed on one side of the support frame 29. Multiple first sealing blocks 31 corresponding to the positions of the discharge port 22 are provided inside the support frame 29, and each first sealing block 31 is fixedly connected to the output ends of two adjacent second hydraulic rods 30. A first fixing frame 32 is fixedly installed on the surface of the machine body 1, and a filter box 33 is fixedly installed on the first fixing frame 32. A fan is fixedly installed on one side of the filter box 33. The filter box 33 has a duct 35 fixedly installed on the other side of the machine 34, and one end of the duct 35 extends to the top of the first fixed frame 6. A screen 36 is fixedly installed inside the filter box 33. A second fixed frame 37 is fixedly installed on the top of the filter box 33. A third hydraulic rod 38 is fixedly installed on the second fixed frame 37. A scraper 39 that fits against the screen 36 is fixedly installed on the output end of the third hydraulic rod 38 that extends into the filter box 33. A second sealing plate 40 is fixedly installed at the bottom of the scraper 39. A discharge port 41 is opened at the bottom of the filter box 33. A first collection box 42 is set below the discharge port 41.

[0025] With the support frame 29, the second hydraulic rod 30, and the first sealing block 31, the support frame 29 can easily collect the material discharged from the discharge port 22 and guide it into the input end of the circulating screw conveyor 2. Simultaneously, the multiple first sealing blocks 31 within the support frame 29 can block the other two discharge ports 22 when screening using the selected first screen 19, second screen 20, or third screen 21. Specifically, two adjacent second hydraulic rods 30 are simultaneously activated, extending their output ends to move the first sealing blocks 31 and insert them into the discharge ports 22, thus preventing qualified dry-mixed mortar particles from falling out of the other two discharge ports 22. The first fixed frame 32, filter box 33, fan 34, air duct 35, and screen 36 are used to break down the dry-mixed mortar raw materials. Crushing generates a large amount of dust. During the crushing process, the blower 34 is started, and the dust is absorbed into the filter box 33 through the air duct 35. The dust is trapped inside the filter box 33 by the blower 34, preventing the dust from spreading and polluting the environment. The second fixed frame 37, the third hydraulic rod 38, the scraper 39, the second sealing plate 40, the discharge port 41, and the first collection box 42 are set up to facilitate the recovery of dust particles trapped in the filter box 33. After crushing is completed, the third hydraulic rod 38 is started to extend its output end, which drives the scraper 39 and the second sealing plate 40 to descend synchronously. The scraper 39 can scrape off the dust attached to the mesh 36, while the descent of the second sealing plate 40 can open the discharge port 41, allowing the dust to fall into the first collection box 42 for recovery.

[0026] In this embodiment, as Figures 1-11 As shown, a third fixed frame 43 is fixedly installed on both sides of the first fixed frame 32. A spring 44 is fixedly installed on one side of the third fixed frame 43. A second limiting rod 45 is fixedly installed on one end of the spring 44, and one end of the second limiting rod 45 passes through the spring 44 and extends to the inside of the third fixed frame 43. Two fastening blocks 46 that engage with the second limiting rod 45 are symmetrically fixedly installed on the surface of the first collection box 42. Two positioning rods 47 are fixedly installed on the bottom surface of the filter box 33. Two positioning grooves 48 are opened at the bottom of the first collection box 42. A conveyor table 49 is fixedly installed at the bottom of the body 1. A second collection box 50 is set on the conveyor table 49. Two support blocks 51 are symmetrically fixedly installed on the top of the conveyor table 49. A baffle 52 is set on one side of the second collection box 50. Multiple damping rods 53 are fixedly installed between the two support blocks 51 and the baffle 52.

[0027] The first collection box 42 and the filter box 33 are connected by the engagement of multiple second limit rods 45 and fastening blocks 46 through the setting of the third fixing bracket 43, spring 44, second limiting rod 45, fastening block 46, positioning rod 47 and positioning groove 48. This allows the first collection box 42 to be quickly disassembled from the bottom of the filter box 33. Specifically, the first collection box 42 can be removed by pulling the second limiting rod 45 outward so that one end is detached from the fastening block 46. During installation, the positioning groove 48 at the bottom of the first collection box 42 is inserted into the positioning rod 47 to position the first collection box 42. Then, one end of the second limiting rod 45 is adjusted to engage with the groove on the fastening block 46. Alignment is achieved, and finally, under the elastic contraction of spring 44, one end of the second limiting rod 45 is inserted into the slot on the fastening block 46 for connection, thereby completing the installation and fixation of the first collection box 42. With the setting of conveyor table 49, second collection box 50, support block 51, baffle 52 and damping rod 53, the second collection box 50 set below the machine body 1 can conveniently collect the qualified dry-mixed mortar particles after crushing. Relying on the transmission of conveyor table 49, it is convenient to transport or remove the second collection box 50 from the bottom of the machine body 1. The setting of support block 51, baffle 52 and damping rod 53 can position and block the second collection box 50 to prevent the second collection box 50 from deviating during transportation on conveyor table 49.

[0028] In this embodiment, as Figures 1-11 As shown in the figure, the working process of a crusher with self-regulating circulation function for dry-mixed mortar provided in this embodiment is as follows: Step 1: Replace the crushing roller body 7 according to the required crushing particle size of dry-mixed mortar. Start the first motor 9 to drive the transmission gear 10 to rotate. After the transmission gear 10 rotates, it will push the first fixed frame 6 by meshing with the toothed plate 12. The first fixed frame 6 will adjust its position by sliding multiple sliders 5 on the slide rail 4, thereby replacing the crushing roller body 7. Step 2: After replacing the suitable crushing roller body 7, the two first hydraulic rods 13 are started simultaneously so that their output ends can drive the support plate 14 to rise, so that the multiple first limiting rods 15 on the top of the support plate 14 can be inserted and engaged with the limiting plate 16 set on the first fixed frame 6, thereby fixing the first fixed frame 6. After the first hydraulic rods 13 drive the support plate 14 to rise, they can simultaneously drive the support rod 11 and the toothed plate 12 to rise, so that the toothed plate 12 can disengage from the transmission gear 10. Step 3: Based on the crushing roller body 7 used, start the second motor 24 to rotate its output end and drive the two screws 25 to rotate by the meshing transmission of multiple bevel gears 26. This causes the support frames 27 on the two screws 25 to move away from or closer to each other, thereby driving the first screen 19, the second screen 20 or the third screen 21 to merge and separate inside the machine body 1, so as to adapt to the crushing of the crushing roller body 7 for screening.

[0029] In summary, in this embodiment, a dry-mixed mortar crusher with a self-adjusting circulation function, through the arrangement of the first hydraulic rod 13, support plate 14, first limiting rod 15, limiting plate 16, first fixing plate 17, and second fixing plate 18, adjusts the positions of multiple first fixing frames 6 to replace the crushing roller body 7. Simultaneously activating the two first hydraulic rods 13 causes their output ends to drive the support plate 14 upward, allowing the multiple first limiting rods 15 on the top of the support plate 14 to engage with the limiting plates 16 on the first fixing frames 6, thereby fixing the first fixing frames 6. To prevent the first fixed frame 6 from shaking, the support rod 11 is fixedly connected to the support plate 14 by the first fixed plate 17 and the second fixed plate 18. After the first hydraulic rod 13 drives the support plate 14 to rise, it can simultaneously drive the support rod 11 and the toothed plate 12 to rise. This causes the toothed plate 12 to separate from the transmission gear 10. Even if the first motor 9 is accidentally started, the transmission gear 10 will not transmit power to the toothed plate 12, further preventing the first fixed frame 6 from shaking during the crushing process. This is achieved through the first screen 19, the second screen 20, the third screen 21, the discharge port 22, the second fixed frame 23, and the second motor. 24. The arrangement of screws 25, bevel gears 26, support frames 27, and fixing rods 28: Multiple first screens 19, second screens 20, and third screens 21 are sequentially arranged from top to bottom inside the machine body 1. The apertures of the first screens 19, second screens 20, and third screens 21 are adapted to the gaps of multiple sets of crushing roller bodies 7. After the first screens 19, second screens 20, and third screens 21 are movably connected on the machine body 1, the rotation of the second motor 24 causes the multiple bevel gears 26 to mesh and drive the two screws 25 to rotate, causing the support frames 27 on the two screws 25 to move away from or towards each other. The first screen 19, the second screen 20, or the third screen 21 are brought closer together and separated inside the machine body 1, so that the corresponding first screen 19, second screen 20, or third screen 21 can be selected for screening according to the crushing roller body 7 used. The large particles of raw material screened out are discharged outward through the discharge port 22. At the same time, sealing plates are provided on both sides of the first screen 19, the second screen 20, and the third screen 21. Whether merging or separating, the sealing plates on both sides of the first screen 19, the second screen 20, and the third screen 21 can seal the machine body 1 to prevent material from leaking from the gaps.

[0030] With the support frame 29, the second hydraulic rod 30, and the first sealing block 31, the support frame 29 can easily collect the material discharged from the discharge port 22 and guide it into the input end of the circulating screw conveyor 2. Simultaneously, the multiple first sealing blocks 31 within the support frame 29 can block the other two discharge ports 22 when screening using the selected first screen 19, second screen 20, or third screen 21. Specifically, two adjacent second hydraulic rods 30 are simultaneously activated, extending their output ends to move the first sealing blocks 31 and insert them into the discharge ports 22, thus preventing qualified dry-mixed mortar particles from falling out of the other two discharge ports 22. The first fixed frame 32, filter box 33, fan 34, air duct 35, and screen 36 are used to break down the dry-mixed mortar raw materials. Crushing generates a large amount of dust. During the crushing process, the blower 34 is started, and the dust is absorbed into the filter box 33 through the air duct 35. The dust is trapped inside the filter box 33 by the blower 34, preventing the dust from spreading and polluting the environment. The second fixed frame 37, the third hydraulic rod 38, the scraper 39, the second sealing plate 40, the discharge port 41, and the first collection box 42 are set up to facilitate the recovery of dust particles trapped in the filter box 33. After crushing is completed, the third hydraulic rod 38 is started to extend its output end, which drives the scraper 39 and the second sealing plate 40 to descend synchronously. The scraper 39 can scrape off the dust attached to the mesh 36, while the descent of the second sealing plate 40 can open the discharge port 41, allowing the dust to fall into the first collection box 42 for recovery.

[0031] The first collection box 42 and the filter box 33 are connected by the engagement of multiple second limit rods 45 and fastening blocks 46 through the setting of the third fixing bracket 43, spring 44, second limiting rod 45, fastening block 46, positioning rod 47 and positioning groove 48. This allows the first collection box 42 to be quickly disassembled from the bottom of the filter box 33. Specifically, the first collection box 42 can be removed by pulling the second limiting rod 45 outward so that one end is detached from the fastening block 46. During installation, the positioning groove 48 at the bottom of the first collection box 42 is inserted into the positioning rod 47 to position the first collection box 42. Then, one end of the second limiting rod 45 is adjusted to engage with the groove on the fastening block 46. Alignment is achieved, and finally, under the elastic contraction of spring 44, one end of the second limiting rod 45 is inserted into the slot on the fastening block 46 for connection, thereby completing the installation and fixation of the first collection box 42. With the setting of conveyor table 49, second collection box 50, support block 51, baffle 52 and damping rod 53, the second collection box 50 set below the machine body 1 can conveniently collect the qualified dry-mixed mortar particles after crushing. Relying on the transmission of conveyor table 49, it is convenient to transport or remove the second collection box 50 from the bottom of the machine body 1. The setting of support block 51, baffle 52 and damping rod 53 can position and block the second collection box 50 to prevent the second collection box 50 from deviating during transportation on conveyor table 49.

[0032] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A crusher for dry-mixed mortar with a self-regulating circulation function, comprising a machine body (1) and a circulating screw conveyor (2) disposed on one side thereof, characterized in that, The machine body (1) is provided with a crushing roller adjustment mechanism (3). The crushing roller adjustment mechanism (3) includes two slide rails (4) symmetrically fixedly installed on the top of the machine body (1). Multiple first fixed frames (6) are provided between the two slide rails (4). The multiple first fixed frames (6) are fixedly connected and multiple sliders (5) that are slidably connected to the slide rails (4) are fixedly installed on their surfaces. A set of crushing roller bodies (7) is provided inside each of the multiple first fixed frames (6). The tooth gap on each set of crushing roller bodies (7) decreases sequentially. A fixed block (8) is fixedly installed on one side of the first fixed frame (6) located in the middle. A first motor (9) is fixedly installed at one end of the fixed block (8). A transmission gear (10) is fixedly installed on the output end of the first motor (9). Two support rods (11) are provided on one side of the circulating screw conveyor (2). A toothed plate (12) that meshes with the transmission gear (10) is fixedly installed between the two support rods (11).

2. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 1, characterized in that, First hydraulic rods (13) are fixedly installed on both sides of the body (1). A support plate (14) is fixedly installed on the output end of the first hydraulic rod (13). Multiple first limiting rods (15) are fixedly installed on the top of the support plate (14). Limiting plates (16) are fixedly installed between multiple first fixing frames (6).

3. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 2, characterized in that, A first fixing plate (17) is fixedly installed on one side of the support plate (14), and a second fixing plate (18) fixedly connected to the support rod (11) is fixedly installed on one side of the first fixing plate (17).

4. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 1, characterized in that, The machine body (1) is symmetrically arranged with two first screens (19) inside, two second screens (20) are arranged below the two first screens (19), and two third screens (21) are arranged below the two second screens (20). The pore size of the first screens (19), the second screens (20) and the third screens (21) decreases sequentially. The machine body (1) is provided with multiple discharge ports (22) on the side near the circulating screw conveyor (2) that correspond to the positions of the first screens (19), the second screens (20) and the third screens (21).

5. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 4, characterized in that, Multiple second fixed frames (23) are fixedly installed on the side of the machine body (1) away from the circulating screw conveyor (2). A second motor (24) is fixedly installed on one side of the second fixed frame (23). Two screws (25) are symmetrically and movably installed inside the second fixed frame (23). The output end of the second motor (24) and the end of the two screws (25) that are close to each other are fixedly installed with meshing bevel gears (26). Each of the two screws (25) is provided with a support frame (27) connected by a thread. A fixed rod (28) is fixedly installed on the end of the support frame (27) that extends to the outside of the second fixed frame (23). Multiple fixed rods (28) are fixedly connected to the first screen (19), the second screen (20) and the third screen (21) respectively.

6. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 5, characterized in that, A support frame (29) is fixedly installed on the machine body (1) on one side of the discharge port (22), and the bottom of the support frame (29) is fixedly connected to the input end of the circulating screw conveyor (2). A plurality of second hydraulic rods (30) are symmetrically fixedly installed on one side of the support frame (29). A plurality of first sealing blocks (31) corresponding to the position of the discharge port (22) are provided inside the support frame (29), and each first sealing block (31) is fixedly connected to the output end of two adjacent second hydraulic rods (30).

7. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 1, characterized in that, A first fixing frame (32) is fixedly installed on the surface of the body (1). A filter box (33) is fixedly installed on the first fixing frame (32). A fan (34) is fixedly installed on one side of the filter box (33). A duct (35) is fixedly installed on the other side of the filter box (33). One end of the duct (35) extends to the top of the first fixing frame (6). A mesh (36) is fixedly installed inside the filter box (33).

8. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 7, characterized in that, A second fixing frame (37) is fixedly installed on the top of the filter box (33). A third hydraulic rod (38) is fixedly installed on the second fixing frame (37). A scraper (39) that fits against the mesh (36) is fixedly installed on the output end of the third hydraulic rod (38) that extends into the filter box (33). A second sealing plate (40) is fixedly installed on the bottom of the scraper (39). A discharge port (41) is opened at the bottom of the filter box (33). A first collection box (42) is provided below the discharge port (41).

9. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 8, characterized in that, A third fixed frame (43) is fixedly installed on both sides of the first fixed frame (32). A spring (44) is fixedly installed on one side of the third fixed frame (43). A second limiting rod (45) is fixedly installed on one end of the spring (44), and one end of the second limiting rod (45) passes through the spring (44) and extends to the inside of the third fixed frame (43). Two fastening blocks (46) that engage with the second limiting rod (45) are symmetrically fixedly installed on the surface of the first collection box (42). Two positioning rods (47) are fixedly installed on the bottom surface of the filter box (33). Two positioning grooves (48) are opened at the bottom of the first collection box (42).

10. A crusher with self-regulating circulation function for dry-mixed mortar according to claim 1, characterized in that, A conveyor platform (49) is fixedly installed at the bottom of the body (1). A second collection box (50) is provided on the conveyor platform (49). Two support blocks (51) are symmetrically fixedly installed on the top of the conveyor platform (49). A baffle (52) is provided on one side of the second collection box (50). Multiple damping rods (53) are fixedly installed between the two support blocks (51) and the baffle (52).

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