Shaft head sealing structure for kneading machine

Abstract

The utility model relates to the technical field of mixing and kneading machine shaft head sealing, in particular to a shaft head sealing structure for a mixing and kneading machine, which comprises a shell, a rotating shaft is arranged in the shell, a protection mechanism is arranged on the outer surface of the rotating shaft, and a flange plate is arranged on one side, far away from the protection mechanism, of the shell. A screw is arranged at the top of the flange plate, a top plate is arranged at the bottom of the flange plate, a sealing mechanism is fixedly connected to the top of the flange plate, a threaded sleeve is arranged at the top of the sealing mechanism, a sealing bearing is arranged on the inner wall of the threaded sleeve, and threads are arranged on the inner surface of the threaded sleeve. And a limiting groove is formed in the threaded sleeve. According to the shaft head sealing structure for the kneading machine, dust in the kneading machine can be prevented from entering through the protection mechanism, and the shaft head can be sealed through the sealing mechanism, so that impurities in air are prevented from entering, the rotating shaft can be prevented from being damaged, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft head sealing of a kneading machine, in particular to a shaft head sealing structure for a kneading machine. Background Art

[0002] Kneading machine is an ideal equipment for kneading, mixing, vulcanizing and polymerizing high viscosity, elastic-plastic materials. Kneading machine can be used to produce silicone rubber, sealant, hot melt adhesive, food adhesive base, pharmaceutical preparations, etc. Kneading machine is a special mixing and stirring equipment. Kneading machine drives the auger to mix the materials through the rotating shaft. The rotating shaft needs to be sealed during use.

[0003] The commonly used sealing method for sealing powder in the kneading machine is packing seal. The shaft head sealing effect of this type of seal cannot meet the use requirements. Impurities in the air will enter the interior of the equipment, and dust will also be generated during the kneading process. The dust enters the interior of the equipment and causes damage to the equipment, thereby reducing the service life of the equipment. Therefore, a shaft head sealing structure for a kneading machine is urgently needed to improve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a shaft head sealing structure for a kneading machine to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a shaft head sealing structure for a kneading machine, comprising a shell, a rotating shaft is arranged inside the shell, a protective mechanism is arranged on the outer surface of the rotating shaft, a flange is arranged on the side of the shell away from the protective mechanism, a hexagonal screw is arranged on the top of the flange, a top plate is arranged on the bottom of the flange, a sealing mechanism is fixedly connected to the top of the flange, a threaded sleeve is arranged on the top of the sealing mechanism, a sealing bearing is arranged on the inner wall of the threaded sleeve, an external thread is arranged on the inner surface of the threaded sleeve, a limiting groove is arranged inside the threaded sleeve, and a sliding mechanism is arranged on the inner part of the threaded sleeve.

[0007] The utility model is further configured as follows: a groove is provided on the top of the shell, a first sealing gasket is provided inside the groove, and a screw hole is provided inside the shell.

[0008] By adopting the above technical solution, the flange can be connected to the outer shell of the kneading machine.

[0009] The utility model is further configured as follows: the protection mechanism comprises a support sleeve, a second sealing gasket is arranged inside the support sleeve, a baffle is fixedly connected to the bottom of the support sleeve, and the support sleeve is fixedly connected to the outer shell.

[0010] By adopting the above technical solution, the equipment can be protected.

[0011] The utility model is further configured as follows: the screws are matched with the screw holes, and the flange is connected with the shell through the screws; the top plate is matched with the grooves, and the top plate is slidably connected with the shell through the grooves.

[0012] By adopting the above technical solution, the flange can be connected to the outer shell of the kneading machine, preventing dust from entering the interior of the equipment from between the flange and the outer shell.

[0013] The utility model is further configured as follows: the sealing mechanism comprises a shaft sleeve, a storage groove is provided on the top of the shaft sleeve, a third sealing gasket is provided inside the storage groove, and a threaded groove is provided on the outer surface of the shaft sleeve at one end away from the flange.

[0014] By adopting the above technical solution, dust in the air can be prevented from entering the equipment.

[0015] The utility model is further configured as follows: the sliding mechanism comprises a movable plate, the top of the movable plate is fixedly connected with a spring, and the four sides of the movable plate are fixedly connected with limiting plates.

[0016] By adopting the above technical solution, the pressure of the limiting plate on the third sealing gasket can be limited, thereby preventing the pressure from causing damage to the third sealing gasket.

[0017] The utility model is further configured as follows: a sliding groove is provided inside the limiting groove, the limiting plate is matched with the sliding groove, and the movable plate is slidably connected with the threaded sleeve through the limiting plate.

[0018] By adopting the above technical solution, the limiting plate can be moved up and down.

[0019] In summary, the beneficial technical effects of the utility model are:

[0020] The shaft head sealing structure for the kneading machine is provided with a protection mechanism, through which dust generated in the production process can be blocked, and the dust generated in the production process can be prevented from entering the interior of the device from the rotating shaft. A sealing mechanism is provided, through which impurities in the air can be blocked, and the impurities in the air can be prevented from entering the interior of the device. The top plate squeezes the first sealing gasket to seal the outer shell, and the impurities in the air can be prevented from entering the interior of the device from the junction of the flange and the outer shell, so that dust and impurities are prevented from damaging the equipment, thereby extending the service life of the equipment.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the bottom structure of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the housing of the utility model;

[0026] Figure 4 It is a cross-sectional view of the utility model;

[0027] Figure 5 This utility model Figure 4 A schematic diagram of the structure enlargement at the center A;

[0028] Figure 6 This utility model Figure 4 A schematic diagram of the structure enlarged at B in the middle;

[0029] Figure 7 This utility model Figure 4 Enlarged schematic diagram of the structure at C in the middle'

[0030] Figure 8 This utility model Figure 7 Enlarged schematic diagram of the structure at D in the middle.

[0031] In the figure: 1. housing; 2. rotating shaft; 3. protective mechanism; 4. flange; 5. hexagonal screw; 6. top plate; 7. sealing mechanism; 8. threaded sleeve; 9. sealed bearing; 10. external thread; 11. limiting groove; 12. sliding mechanism; 13. groove; 14. first sealing gasket; 15. screw hole; 16. supporting sleeve; 17. second sealing gasket; 18. baffle; 19. sleeve; 20. storage groove; 21. third sealing gasket; 22. threaded groove; 23. movable plate; 24. spring; 25. limiting plate; 26. slide groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] Embodiment 1

[0034] Reference Figure 1 , Figure 2 and Figure 4 , is a shaft head sealing structure for a kneading machine disclosed in the utility model, comprising a shell 1. In the present embodiment, the shell 1 is a kneading machine shell 1, a rotating shaft 2 is arranged inside the shell 1, and a protective mechanism 3 is arranged on the outer surface of the rotating shaft 2 to prevent dust from entering the equipment in the machine during the production process. A flange 4 is arranged on the side of the shell 1 away from the protective mechanism 3, a hexagonal screw 5 is arranged on the top of the flange 4, a top plate 6 is arranged on the bottom of the flange 4, the top plate 6 and the flange 4 are integrally formed, a sealing mechanism 7 is fixedly connected to the top of the flange 4, and the rotating shaft 2 can be sealed. A threaded sleeve 8 is arranged on the top of the sealing mechanism 7, a sealing bearing 9 is arranged on the inner wall of the threaded sleeve 8, an external thread 10 is arranged on the inner surface of the threaded sleeve 8, a limiting groove 11 is arranged inside the threaded sleeve 8, and a sliding mechanism 12 is arranged on the inner part of the threaded sleeve 8 to prevent the sealing gasket from being damaged.

[0035] Reference Figures 3 to 6 A groove 13 is provided at the top of the housing 1. In this embodiment, the groove 13 is matched with the top plate 6. A first sealing gasket 14 is provided inside the groove 13 to seal the junction between the housing 1 and the flange 4. A screw hole 15 is provided inside the housing 1 to connect the flange 4 to the kneading machine housing 1. The protection mechanism 3 includes a support sleeve 16. A second sealing gasket 17 is provided inside the support sleeve 16 to seal the rotating shaft 2 and is slidably connected to the rotating shaft 2. A baffle 18 is fixedly connected to the bottom of the support sleeve 16 to block dust during the production process. The support sleeve 16 is fixedly connected to the housing 1 to protect the equipment from dust entry. The screws are matched with the screw holes 15, and the flange 4 is connected to the housing 1 through the screws. The top plate 6 is matched with the groove 13, and the top plate 6 is slidably connected to the housing 1 through the groove 13, so that the flange 4 can be connected to the kneading machine housing 1 to prevent dust from entering the equipment from between the flange 4 and the housing 1, thereby extending the service life of the equipment.

[0036] Reference Figure 7 and Figure 8The sealing mechanism 7 includes a sleeve 19. In this embodiment, the sleeve 19 is rotatably connected to the rotating shaft 2. A storage groove 20 is provided on the top of the sleeve 19. The storage groove 20 is adapted to the movable plate. A third sealing gasket 21 is provided inside the storage groove 20 to seal the sleeve 19. A threaded groove 22 is provided on the outer surface of the sleeve 19 away from the flange 4 to prevent dust in the air from entering the device, thereby protecting the device. The sliding mechanism 12 includes a movable plate 23 that can move up and down. The movable plate 23 A spring 24 is fixedly connected to the top, and limiting plates 25 are fixedly connected on all four sides of the movable plate 23, which can limit the movable plate 23 and limit the pressure of the limiting plate 25 on the third sealing gasket 21 to prevent the pressure from damaging the third sealing gasket 21. A sliding groove 26 is provided inside the limiting groove 11, and the limiting plate 25 is adapted to the sliding groove 26. The movable plate 23 is slidably connected to the threaded sleeve 8 through the limiting plate 25, so that the limiting plate 25 can move up and down to prevent the third sealing gasket 21 from being damaged and reducing the sealing effect.

[0037] The implementation principle of this embodiment is:

[0038] The shaft head sealing structure for the kneading machine has a flange 4 connected to the housing 1 by screws. When installation is required, the staff passes the rotating shaft 2 through the flange 4 to align the screw holes 15. At this time, the staff screws the screws into the screw holes 15, and the top plate 6 at the bottom of the flange 4 enters the groove 13 of the housing 1. When the flange 4 is installed, the first sealing gasket 14 provided in the groove 13 contacts the top plate 6, and the top plate 6 squeezes the first sealing gasket 14, so as to seal the housing 1, prevent impurities in the air from entering the interior of the equipment from the junction of the flange 4 and the housing 1, and thus prevent the equipment from being damaged.

[0039] The shaft head sealing structure for the kneading machine is provided with a sealing mechanism 7. When the flange 4 is installed, the staff screws the threaded sleeve 8 to the outer surface of the top of the sleeve 19. The sleeve 19 is provided with a third sealing gasket 21. The sealing mechanism 7 is provided with a sliding mechanism 12. When the threaded sleeve 8 moves downward, it can drive the limit plate 25 to move downward, thereby causing the movable plate 23 to move downward. When the movable plate 23 contacts the third sealing gasket 21, the threaded sleeve 8 moves downward, and the movable plate 23 squeezes the third sealing gasket 21, which can deform the spring 24, thereby keeping the movable plate 23 stationary, preventing the movable plate 23 from squeezing too much and damaging the third sealing gasket 21. The threaded sleeve 8 can prevent impurities in the air from entering the interior of the device from the sleeve 19, and the sleeve 19 can prevent impurities in the air from entering the interior of the device from the junction of the rotating shaft 2 and the housing 1, thereby preventing the device from being damaged.

[0040] The shaft head sealing structure for the kneading machine is provided with a protective mechanism 3. When the kneading machine is working, dust is generated inside the kneading machine. The support sleeve 16 is fixedly connected to the outer shell 1 so that there is no gap between the outer shell 1 and the support sleeve 16, thereby preventing dust from entering the interior of the device from the junction between the support sleeve 16 and the outer shell 1. The baffle 18 of the protective mechanism 3 cooperates with the second sealing gasket 17 to block the dust generated during the production process of the kneading machine and prevent it from entering the interior of the device, thereby preventing the device from being damaged.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The shaft head sealing structure for the kneading machine is provided with a protection mechanism 3, through which dust generated in the production process can be blocked, and dust generated in the production process can be prevented from entering the interior of the device from the rotating shaft 2. A sealing mechanism 7 is provided, through which impurities in the air can be blocked, and impurities in the air can be prevented from entering the interior of the device. The top plate 6 squeezes the first sealing gasket 14 to seal the outer shell 1, and impurities in the air can be prevented from entering the interior of the device from the junction of the flange 4 and the outer shell 1, so as to prevent dust and impurities from damaging the device, thereby extending the service life of the device.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A shaft head sealing structure for a kneading machine, characterized in that: The invention comprises a housing (1), wherein a rotating shaft (2) is arranged inside the housing (1), a protective mechanism (3) is arranged on the outer surface of the rotating shaft (2), a flange (4) is arranged on the side of the housing (1) away from the protective mechanism (3), a hexagonal screw (5) is arranged on the top of the flange (4), a top plate (6) is arranged on the bottom of the flange (4), a sealing mechanism (7) is fixedly connected to the top of the flange (4), a threaded sleeve (8) is arranged on the top of the sealing mechanism (7), a sealing bearing (9) is arranged on the inner wall of the threaded sleeve (8), an external thread (10) is arranged on the inner surface of the threaded sleeve (8), a limiting groove (11) is arranged inside the threaded sleeve (8), and a sliding mechanism (12) is arranged inside the threaded sleeve (8).

2. The shaft head sealing structure for a kneading machine according to claim 1, characterized in that: A groove (13) is provided at the top of the housing (1), a first sealing gasket (14) is arranged inside the groove (13), and a screw hole (15) is provided inside the housing (1).

3. The shaft head sealing structure for a kneading machine according to claim 1, characterized in that: The protection mechanism (3) comprises a support sleeve (16), a second sealing gasket (17) is arranged inside the support sleeve (16), a baffle (18) is fixedly connected to the bottom of the support sleeve (16), and the support sleeve (16) is fixedly connected to the outer shell (1).

4. The shaft head sealing structure for a kneading machine according to claim 1, characterized in that: The screws are matched with the screw holes (15), and the flange (4) is connected to the housing (1) via the screws; the top plate (6) is matched with the grooves (13), and the top plate (6) is slidably connected to the housing (1) via the grooves (13).

5. The shaft head sealing structure for a kneading machine according to claim 1, characterized in that: The sealing mechanism (7) comprises a shaft sleeve (19), a storage groove (20) is provided on the top of the shaft sleeve (19), a third sealing gasket (21) is provided inside the storage groove (20), and a threaded groove (22) is provided on the outer surface of the end of the shaft sleeve (19) away from the flange (4).

6. The shaft head sealing structure for a kneading machine according to claim 1, characterized in that: The sliding mechanism (12) comprises a movable plate (23), the top of the movable plate (23) is fixedly connected to a spring (24), and the four sides of the movable plate (23) are fixedly connected to limit plates (25).

7. A shaft head sealing structure for a kneading machine according to claim 6, characterized in that: A sliding groove (26) is provided inside the limiting groove (11), the limiting plate (25) is adapted to the sliding groove (26), and the movable plate (23) is slidably connected to the threaded sleeve (8) via the limiting plate (25).

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