Crushing and granulating machine with dust prevention and noise reduction functions

Abstract

The utility model discloses a crushing granulator with dust prevention and noise reduction functions, which relates to the technical field of crushing granulators, and comprises a rack and a crushing cylinder, and a hopper is fixedly connected with the bottom surface of the rack; a control box is fixedly installed on one side of the bottom of the rack, a smashing frame is rotationally connected into the hopper through a bearing, a motor is fixedly installed at the top of the rack, the top of the smashing frame extends into the rack and is fixedly connected with an output shaft of the motor, and the hopper is fixedly installed at the position, on one side of the motor, of the top of the rack. The top of the hopper is rotationally connected with a baffle through a hinge, fixing frames are fixedly installed on the surfaces of the two ends of the rack, and the top of each fixing frame is fixedly connected with a spring. Dust can be prevented from flying out of the top of the hopper through the baffle, the sealing strip and the sealing plate, the baffle can be automatically driven to shield the top of the hopper through the spring and the telescopic component, and therefore the dustproof effect is achieved to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of crushing and granulating machine technology, specifically to a crushing and granulating machine with dust prevention and noise reduction functions. Background Technology

[0002] The pulverizer and granulator is a type of machinery widely used in the pharmaceutical, chemical, and food industries. It operates primarily on the principle of centrifugal force. When material enters the machine chamber, the high-speed rotation of the pulverizing blades creates a vortex, generating strong centrifugal force that forces the material to diffuse towards the screen openings. Simultaneously, high-speed gap shearing and compression occur between the pulverizing blades and the screen, along with the material's own abrasive action, pulverizing the material into fine particles. Under the influence of centrifugal force, particles the same size as the screen openings are discharged through the mesh.

[0003] The feed cylinder and crushing chamber of the existing crushing and granulating machine are fixedly connected, and the crushing chamber and the collecting cylinder are also fixedly connected and cannot be disassembled. However, the screen is easily damaged during use and needs to be replaced in time. The existing structure makes it impossible to replace the screen in time.

[0004] The prior art proposes a Chinese patent with publication number CN213133462U to solve the above-mentioned technical problems. The technical solution disclosed in this patent document is as follows: A crushing and granulating machine includes a support frame, a feeding cylinder and a motor are arranged on the support frame, and a crushing box is also included. A screen is arranged on the side wall of the crushing box. A rotating shaft is connected to the end of the power output shaft of the motor. A blade is arranged on the rotating shaft. The rotating shaft is arranged inside the crushing box. A fixing plate is arranged on the top of the crushing box. The fixing plate is detachably connected to the support frame. A connecting cylinder is arranged on the crushing box. An internal thread is arranged on the inner wall of the connecting cylinder. A guide pipe is arranged at the bottom of the feeding cylinder. An external thread that mates with the internal thread is arranged at the end of the guide pipe. The machine also includes a collecting cylinder detachably connected to the outer wall of the crushing box. The collecting cylinder is arranged outside the screen. A discharge port is arranged at the bottom of the collecting cylinder. This invention solves the problem that existing crushing and granulating machines cannot replace the screen in a timely manner. However, during the use of the above-mentioned crushing and granulating machine, dust is easily splashed out to the top through the feed cylinder, which will affect the working environment of the device and cause harm to the human body. Utility Model Content

[0005] The purpose of this invention is to provide a crushing and granulating machine with dust prevention and noise reduction functions to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A pulverizer and granulator with dustproof and noise reduction functions includes a frame and a pulverizing cylinder. A hopper is fixedly connected to the bottom surface of the frame. A control box is fixedly installed on one side of the bottom of the frame. A pulverizing frame is rotatably connected to the inside of the hopper via a bearing. A motor is fixedly installed on the top of the frame. The top of the pulverizing frame extends into the inside of the frame and is fixedly connected to the output shaft of the motor. A hopper is fixedly installed on the top of the frame on the side of the motor. A baffle is rotatably connected to the top of the hopper via a hinge. Fixed frames are fixedly installed on both ends of the frame. A spring is fixedly connected to the top of each fixed frame. A connecting plate is fixedly installed on the top of each spring. A stop bar is fixedly connected to the inner end surface of each connecting plate. A protective pad is attached to the outer surface of the bottom of each stop bar. Each protective pad is pressed against the top surface of the baffle. A telescopic component is provided inside each spring to guide the movement of the connecting plate. Sound-absorbing cotton is attached to the outer surface of the pulverizing cylinder. Sound-insulating foam is attached to the outer surface of the sound-absorbing cotton.

[0008] During the operation of the aforementioned crushing and granulating machine, dust can easily splash out to the top through the feed cylinder, affecting the operating environment and potentially causing injury to personnel. This application addresses this by installing a baffle to cover the top of the hopper, reducing the likelihood of dust escaping from the top. When the operator rotates the top baffle, it presses the baffle rod and protective pad upwards. When the operator releases the baffle, the spring's elasticity pulls the connecting plate downwards, simultaneously causing the baffle rod to press against the top surface of the baffle, automatically causing the baffle to fit against the top surface of the hopper, thus covering the hopper opening. This prevents the baffle from being ineffectively covered due to the operator forgetting to rotate it, thereby improving dust prevention. Furthermore, the installation of sound-absorbing cotton absorbs the noise generated by the motor driving the crushing frame, and the installation of sound-insulating foam isolates the noise, achieving a certain degree of noise reduction.

[0009] A further improvement of the present invention is that each telescopic component includes a sleeve, the bottom surface of each sleeve is fixedly connected to the top surface of each fixed frame, a telescopic rod is slidably installed inside each sleeve, and the top of each telescopic rod extends out of the inside of each sleeve and is fixedly connected to the bottom of the connecting plate.

[0010] In the above-mentioned technical solution, the spring itself has a certain elasticity, which can easily cause the connecting plate to shake randomly during the activity, thus failing to ensure that the bottom surface of the protective pad is in contact with the surface of the baffle, thereby affecting the pushing effect on the baffle. In this application, during the process of the spring driving the connecting plate to move, the telescopic rod can be driven to slide along the inner wall of the sleeve, thereby ensuring that the connecting plate maintains linear movement and ensuring that the surface of the protective pad is always in contact with the surface of the baffle.

[0011] A further improvement of this utility model is that: a number of first balls are rolled inside each sleeve on the outer surface of each telescopic rod, and each first ball is in contact with the outer surface of each telescopic rod.

[0012] By adopting the above technical solution, the contact area between the sleeve and the telescopic rod can be reduced by installing the first ball bearing. When the telescopic rod moves, the first ball bearing can roll along the telescopic rod, thereby reducing the wear between the sleeve and the telescopic rod and extending the service life of the device.

[0013] A further improvement of this utility model is that: several sealing strips are attached to the bottom surface of the baffle, and a slot is provided inside the hopper, with each sealing strip engaging with the inside of the slot.

[0014] By adopting the above technical solution, the contact area between the bottom surface of the baffle and the hopper can be increased by installing a sealing strip, thereby increasing the sealing effect between the baffle and the hopper and further improving the dustproof effect.

[0015] A further improvement of this utility model is that a guide groove is provided on the inner wall of the hopper, which is connected to the slot, and the guide groove is inclined to the bottom on the other side.

[0016] In the above-mentioned technical solution, the sealing strip is inserted into the hopper, which forms a groove inside the hopper. Material can easily get stuck inside the groove, thus affecting the effect of crushing and granulating the material. In this application, by opening a guide groove, the stuck material can be easily guided directly into the hopper, thereby avoiding affecting the effect of crushing and granulating the material.

[0017] A further improvement of this utility model is that a sealing plate is attached to the bottom of the baffle on the other side of the sealing strip, and the sealing plate is tightly fitted to the inner wall of the hopper inlet.

[0018] By adopting the above technical solution, the contact area between the baffle and the surface of the hopper opening can be increased by installing a sealing plate, thereby further improving the sealing effect of the baffle on the hopper.

[0019] A further improvement of this utility model is that: protective plates are fixedly installed at the bottom of the baffles at both ends of the hopper, and several second balls are rolled on the surface of both ends of the hopper, with each second ball respectively fitting against the inner end surface of each protective plate.

[0020] By adopting the above technical solution, the protective plates can be used to shield the hopper from both ends, which can reduce the amount of dust flying out from both ends of the top of the hopper during the material feeding process, thereby improving the dust prevention effect.

[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0022] 1. This utility model provides a crushing and granulating machine with dust prevention and noise reduction functions. By using a baffle to cover the top of the hopper, the possibility of dust flying out from the top of the hopper can be reduced. Furthermore, by using a spring and a telescopic component, the baffle can be automatically rotated to the bottom to cover the opening of the hopper, thereby preventing the operator from forgetting to rotate the baffle and affecting the effect of covering the opening of the hopper, thus improving the dust prevention effect.

[0023] 2. This utility model provides a crushing and granulating machine with dust prevention and noise reduction functions. By installing sealing strips and sealing plates, the contact area between the bottom surface of the baffle and the hopper can be increased, thereby increasing the sealing effect between the baffle and the hopper and further improving the dust prevention effect.

[0024] 3. This utility model provides a crushing and granulating machine with dust prevention and noise reduction functions. During the material feeding process, the protective plate reduces the dust from flying out from both ends of the top of the hopper, thereby improving the dust prevention effect. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a perspective view of the present utility model;

[0027] Figure 2 This is a partial structural diagram of the frame of this utility model;

[0028] Figure 3 This is a partial structural diagram of the baffle flipping form of this utility model;

[0029] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0030] Figure 5 This is a schematic diagram of a partial structure of the spring of this utility model;

[0031] Figure 6 This is a partial cross-sectional structural diagram of the telescopic component of this utility model.

[0032] In the diagram: 1. Frame; 2. Hopper; 3. Fixed frame; 4. Control box; 5. Telescopic component; 501. Sleeve; 502. Telescopic rod; 503. First ball bearing; 6. Crushing cylinder; 7. Baffle; 8. Protective plate; 9. Crushing frame; 10. Sound insulation foam; 11. Motor; 12. Sound-absorbing cotton; 13. Sealing strip; 14. Sealing plate; 15. Second ball bearing; 16. Stop bar; 17. Guide groove; 18. Protective pad; 19. Spring; 20. Connecting plate. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to embodiments:

[0034] Example 1

[0035] like Figure 1 , Figure 3 and Figure 5 As shown, this utility model provides a pulverizer and granulator with dustproof and noise reduction functions, including a frame 1 and a pulverizing cylinder 6. A hopper 2 is fixedly connected to the bottom surface of the frame 1. A control box 4 is fixedly installed on one side of the bottom of the frame 1. A pulverizing frame 9 is rotatably connected to the inside of the hopper 2 via bearings. A motor 11 is fixedly installed on the top of the frame 1. The top of the pulverizing frame 9 extends into the inside of the frame 1 and is fixedly connected to the output shaft of the motor 11. A hopper 2 is fixedly installed on the top of the frame 1 on one side of the motor 11. A baffle 7 is rotatably connected to the top of the hopper 2 via hinges. The two ends of the frame 1... Each surface is fixedly mounted with a fixing frame 3. Each fixing frame 3 is fixedly connected to the top of a spring 19. Each spring 19 is fixedly mounted to the top of a connecting plate 20. Each connecting plate 20 is fixedly connected to the inner end surface of a stop bar 16. Each stop bar 16 is attached to the outer surface of its bottom with a protective pad 18. Each protective pad 18 is pressed against the top surface of the baffle plate 7. Each spring 19 is equipped with a telescopic component 5 for guiding the movement of the connecting plate 20. The outer surface of the crushing cylinder 6 is attached with sound-absorbing cotton 12. The outer surface of the sound-absorbing cotton 12 is attached with sound-insulating foam 10.

[0036] In this embodiment, during the use of the above-mentioned crushing and granulating machine, dust can easily splash out to the top through the feed cylinder, which can affect the operating environment of the device and cause injury to the human body. In this application, by installing baffle 7, the top of hopper 2 can be covered, thereby reducing the possibility of dust flying out from the top of hopper 2. When the operator rotates the top baffle 7, the baffle rod 16 and protective pad 18 can be pressed to the top. When the operator releases the baffle 7, the elastic force of the spring 19 can form a downward pulling force on the connecting plate 20, and at the same time drive the baffle rod 16 to press against the top surface of the baffle 7, so that the baffle 7 automatically fits against the top surface of hopper 2, covering the opening of hopper 2. This prevents the effect of covering the opening of hopper 2 from being affected by the operator forgetting to rotate the baffle 7, thereby improving the dust prevention effect. By installing sound-absorbing cotton 12, the noise generated by the motor 11 driving the crushing frame 9 to rotate can be absorbed. By installing sound-insulating foam 10, the noise can be isolated, thereby achieving a certain degree of noise reduction effect.

[0037] Example 2

[0038] like Figure 1 , Figure 5 and Figure 6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, each telescopic component 5 includes a sleeve 501, the bottom surface of each sleeve 501 is fixedly connected to the top surface of each fixing frame 3, a telescopic rod 502 is slidably installed inside each sleeve 501, the top of each telescopic rod 502 extends out of the interior of each sleeve 501 and is fixedly connected to the bottom of the connecting plate 20, and a plurality of first balls 503 are rolledly installed inside each sleeve 501 on the outer surface of each telescopic rod 502, and each first ball 503 is respectively in contact with the outer surface of each telescopic rod 502.

[0039] In this embodiment, the spring 19 itself has a certain elasticity. During the movement, it is easy to cause the connecting plate 20 to shake randomly, which makes it impossible to ensure that the bottom surface of the protective pad 18 is in contact with the surface of the baffle 7, thus affecting the pushing effect on the baffle 7. In this application, during the movement of the connecting plate 20 driven by the spring 19, the telescopic rod 502 can be driven to slide along the inner wall of the sleeve 501, thereby ensuring that the connecting plate 20 maintains linear movement and ensuring that the surface of the protective pad 18 is always in contact with the surface of the baffle 7. By installing the first ball bearing 503, the contact area between the sleeve 501 and the telescopic rod 502 can be reduced. During the movement of the telescopic rod 502, the first ball bearing 503 can roll along the telescopic rod 502, thereby reducing the wear between the sleeve 501 and the telescopic rod 502 and extending the service life of the device.

[0040] Example 3

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, based on Embodiment 2, this utility model provides a technical solution: Preferably, a plurality of sealing strips 13 are attached to the bottom surface of the baffle 7, a slot is provided inside the hopper 2, and each sealing strip 13 is engaged with the inside of the slot. A guide groove 17 is provided on the inner wall of the hopper 2, which is connected to the slot and is inclined to the bottom on the other side. A sealing plate 14 is attached to the bottom of the baffle 7 on the other side of the sealing strip 13. The sealing plate 14 is tightly fitted to the inner wall of the feed inlet of the hopper 2. Protective plates 8 are fixedly installed at the bottom of the baffles 7 at both ends of the hopper 2. A plurality of second balls 15 are rolled on the surface of both ends of the hopper 2, and each second ball 15 is respectively engaged with the inner end surface of each protective plate 8.

[0042] In this embodiment, installing the sealing strip 13 increases the contact area between the bottom surface of the baffle 7 and the hopper 2, thereby increasing the sealing effect between the baffle 7 and the hopper 2 and further improving the dustproof effect. The sealing strip 13, when inserted into the hopper 2, forms a groove inside the hopper 2, which can easily cause material to get stuck, thus affecting the material crushing and granulation process. In this application, by opening the guide groove 17, the stuck material can easily enter the hopper 2 directly through the guide groove 17, thus avoiding affecting the material crushing and granulation process. Installing the sealing plate 14 increases the contact area between the baffle 7 and the surface of the opening of the hopper 2, thereby further improving the sealing effect of the baffle 7 on the hopper 2. Using the protective plate 8 to shield the hopper 2 from both ends reduces the amount of dust flying out from both ends of the top of the hopper 2 during material feeding, thus improving the dustproof effect.

[0043] The working principle of this pulverizer and granulator with dust prevention and noise reduction functions is explained in detail below.

[0044] like Figures 1-6 As shown, the operator rotates the baffle 7 to the top, which simultaneously compresses the protective pad 18, causing the spring 19 to stretch upwards. The material to be crushed is then placed into the hopper 2. After one feeding is completed, the operator releases the baffle 7. At this time, the spring 19 drives the connecting plate 20 to move to the bottom, while simultaneously causing the baffle 7 support to fit against the top surface of the hopper 2, thus blocking the top of the hopper 2 and reducing the possibility of dust flying out from the top of the hopper 2. The operator can then use the motor 11 to drive the crushing frame 9 to rotate, thereby achieving the crushing and granulation of the material.

[0045] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A pulverizing and granulating machine with dustproof and noise reduction functions, comprising a frame (1), a hopper (2), and a pulverizing cylinder (6), wherein the hopper (2) is fixedly connected to the bottom surface of the frame (1); characterized in that: A control box (4) is fixedly installed on one side of the bottom of the frame (1). A crushing frame (9) is rotatably connected to the inside of the hopper (2) via a bearing. A motor (11) is fixedly installed on the top of the frame (1). The top of the crushing frame (9) extends into the inside of the frame (1) and is fixedly connected to the output shaft of the motor (11). A hopper (2) is fixedly installed on the top of the frame (1) on one side of the motor (11). A baffle (7) is rotatably connected to the top of the hopper (2) via a hinge. Fixing frames (3) are fixedly installed on both ends of the frame (1). The top of each fixing frame (3) is fixedly connected to... Each spring (19) is connected to a connecting plate (20) fixedly mounted on its top. Each connecting plate (20) is fixedly connected to a stop bar (16) on its inner end surface. Each stop bar (16) is attached to a protective pad (18) on its bottom outer surface. Each protective pad (18) is pressed against the top surface of the baffle (7). Each spring (19) is provided with a telescopic component (5) for guiding the movement of the connecting plate (20). The outer surface of the crushing cylinder (6) is attached with sound-absorbing cotton (12). The outer surface of the sound-absorbing cotton (12) is attached with sound-insulating foam (10).

2. A pulverizing and granulating machine with dust prevention and noise reduction functions according to claim 1, characterized in that: Each of the telescopic components (5) includes a sleeve (501), the bottom surface of each sleeve (501) is fixedly connected to the top surface of each fixing frame (3), and a telescopic rod (502) is slidably installed inside each sleeve (501). The top of each telescopic rod (502) extends out of the interior of each sleeve (501) and is fixedly connected to the bottom of the connecting plate (20).

3. A pulverizing and granulating machine with dust prevention and noise reduction functions according to claim 2, characterized in that: A plurality of first balls (503) are rolled inside each sleeve (501) on the outer surface of each telescopic rod (502), and each first ball (503) is in contact with the outer surface of each telescopic rod (502).

4. A pulverizing and granulating machine with dust prevention and noise reduction functions according to claim 1, characterized in that: The bottom surface of the baffle (7) is covered with several sealing strips (13), and the inside of the hopper (2) is provided with a slot, and each sealing strip (13) is engaged with the inside of the slot.

5. A pulverizing and granulating machine with dust prevention and noise reduction functions according to claim 4, characterized in that: The inner wall of the hopper (2) is provided with a guide groove (17), which is connected to the slot, and the guide groove (17) is inclined to the bottom on the other side.

6. A pulverizing and granulating machine with dust prevention and noise reduction functions according to claim 5, characterized in that: A sealing plate (14) is attached to the bottom of the baffle (7) on the other side of the sealing strip (13), and the sealing plate (14) is in close contact with the inner wall of the feed inlet of the hopper (2).

7. A pulverizing and granulating machine with dust prevention and noise reduction functions according to claim 6, characterized in that: Protective plates (8) are fixedly installed at the bottom of the baffles (7) at both ends of the hopper (2). Several second balls (15) are rolled on the surfaces at both ends of the hopper (2). Each second ball (15) is in contact with the inner surface of each protective plate (8).

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