Sizing material mixing device

Abstract

The utility model discloses a sizing material mixing device, which relates to the technical field of sizing material mixing and particularly comprises a shell and an extrusion device, a feed hopper is arranged at the top of the shell, the extrusion device is arranged at the bottom of one end of the shell, and the inside of the extrusion device is communicated with the shell; a first mounting shaft is arranged at the bottom in the shell, one end of the first mounting shaft is connected with the extrusion device, a second mounting shaft is arranged above the first mounting shaft, and the two ends of the second mounting shaft and the end, away from the extrusion device, of the first mounting shaft are rotationally connected with the shell; a plurality of sectioning blades are arranged on the surfaces of the first mounting shaft and the second mounting shaft, and the ends, away from the extrusion device, of the first mounting shaft and the second mounting shaft are connected with a driving device. When the rubber mixing device is used, rubber needing to be mixed is put into the shell through the feeding hopper, the rubber can be quickly cut into small sections by the section cutting blades which are distributed in an up-and-down staggered manner, and the cut rubber can be mixed along with continuous stirring of the section cutting blades.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber mixing, in particular to a rubber mixing device. Background Art

[0002] A wet blender is a key piece of equipment in the primary processing of natural rubber. It is primarily used to clean the rubber lumps after initial crushing in the crusher. The treated rubber is then rinsed before entering the next process. After mixing and squeezing in the wet blender, the resulting rubber has a consistent color, significantly improving the color grade of natural rubber. Existing wet blenders are unable to cut the rubber into small pieces during mixing, resulting in uneven rubber sizes. Large rubber pieces also lack sufficient contact with water.

[0003] For example, the wet mixer for primary processing natural rubber, described in document CN210098427U, adds rubber from a feed bin and conveys it to a beating rod for mixing via a spiral conveyor. However, the mixer fails to shear the rubber, and the contact area between the large rubber blocks and the water is limited, making it difficult to effectively remove impurities. Therefore, we propose a rubber mixing device to address these technical issues. Utility Model Content

[0004] Aiming at the deficiency that the existing wet mixer cannot shred rubber, the utility model provides a rubber mixing device, which has the advantage of quickly cutting the rubber by means of upper and lower layers of cutting blades, thus solving the problems raised in the above background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A rubber mixing device is designed, comprising a shell, a feeding hopper is provided on the top of the shell, and the utility model further comprises an extrusion device arranged at the bottom of one end of the shell, the extrusion device being communicated with the shell;

[0007] A first mounting shaft is provided at the bottom of the housing, one end of the first mounting shaft is connected to the extrusion device, a second mounting shaft is provided above the first mounting shaft, both ends of the second mounting shaft and an end of the first mounting shaft away from the extrusion device are respectively rotatably connected to the housing;

[0008] A plurality of cutting blades are provided on the surfaces of the first installation shaft and the second installation shaft. One end of the first installation shaft and the second installation shaft away from the extrusion device is connected to the driving device respectively.

[0009] Preferably, there are several groups of segmenting blades distributed below the feed hopper, each group of segmenting blades comprises a plurality of segmenting blades, and the upper and lower segmenting blades are staggered;

[0010] A plurality of groups of kneading rods are arranged on the surfaces of the ends of the first installation shaft and the second installation shaft away from the feed hopper. Each group of kneading rods comprises a plurality of kneading rods, and the upper and lower kneading rods are staggered.

[0011] Preferably, the extrusion device includes a conveying cylinder and a screw shaft, one end of the conveying cylinder is connected to the extrusion cylinder, and the other end is connected to the housing, and an end cover is provided at the end of the extrusion cylinder away from the conveying cylinder, and a plurality of extrusion holes are provided on the surface of the end cover;

[0012] The spiral shaft is placed in the conveying cylinder and the extrusion cylinder, one end of the spiral shaft is rotatably mounted at the center of the end cover, and the other end is coaxially connected to the first mounting shaft.

[0013] Preferably, the diameter of the extrusion cylinder is smaller than the diameter of the conveying cylinder; the spiral blades on the surface of the spiral shaft are divided into spiral conveying blades placed in the conveying cylinder and extrusion spiral blades located in the extrusion cylinder.

[0014] Preferably, one end of the spiral shaft away from the housing extends to the outside of the end cover, and an annular knife seat is installed on the surface of the spiral shaft outside the end cover, and a plurality of cutting blades are provided on the edge of the annular knife seat.

[0015] Preferably, a plurality of water inlet nozzles are installed on the top of the shell and the top of the delivery cylinder, and the water inlet nozzles are connected to the water delivery pump through pipes;

[0016] A plurality of drainage ports are provided at the bottom of the shell and the conveying cylinder, and the drainage ports are connected to the drainage pipe through pipelines.

[0017] Preferably, the driving device is mounted on a support, and the housing and the extrusion device are respectively arranged on the support via supporting legs.

[0018] Preferably, the driving device includes a gearbox, and two drive shafts are rotatably mounted on one side of the gearbox, and the two drive shafts are respectively connected to the first mounting shaft and the second mounting shaft;

[0019] The ends of the two drive shafts away from the housing extend into the gearbox, and the first drive gears are installed on the ends of the drive shafts;

[0020] A support shaft is provided in parallel in the middle of the two drive shafts, both ends of the support shaft are rotatably connected to the gearbox, and a second drive gear is installed at one end of the support shaft close to the first drive gear, and the second drive gear is respectively engaged with the two first drive gears;

[0021] A first transmission gear is installed on the other end of the support shaft, a second transmission gear is engaged below the first transmission gear, the second transmission gear is installed on the input shaft, the other end of the input shaft is rotatably installed on the gearbox, and the end of the input shaft away from the second transmission gear is connected to the drive motor.

[0022] Compared with the prior art, when the present invention is in use, the rubber to be mixed is put into the shell through the feed hopper, and the segmenting blades staggered up and down can quickly cut the rubber into small segments, and as the segmenting blades are constantly stirred, the segmented rubber is mixed, and at the same time, the segmented and mixed rubber enters the conveying cylinder and is finally extruded from the extrusion cylinder, and the rubber is also constantly stirred and mixed in the extrusion cylinder and the conveying cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0025] Figure 3 This is a cross-sectional view of the utility model.

[0026] Figure 4 It is the main view of the utility model.

[0027] In the figure: 1. Support; 2. Protective cover; 3. Extrusion cylinder; 4. Conveying cylinder; 5. Skirt; 6. Cutting blade; 7. Water inlet nozzle; 8. Feed hopper; 9. Gearbox; 10. Drive motor; 11. Water pump; 12. Support leg; 13. Housing; 14. First mounting shaft; 15. Extrusion spiral blade; 16. Second mounting shaft; 17. Annular knife seat; 18. Cutting blade; 19. First drive gear; 20. First transmission gear; 21. Support shaft; 22. Drive shaft; 23. Second transmission gear; 24. Input shaft; 25. Second drive gear; 26. Extrusion hole; 27. End cover; 28. Spiral conveying blade; 29. Spiral shaft; 30. Drain outlet; 31. Kneading rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 4The present invention provides a technical solution: a rubber mixing device, comprising a housing 13, the bottom of the housing 13 being arranged on a support 1 via support legs 12, a feeding hopper 8 being arranged on the top of the housing 13, the feeding hopper 8 being trumpet-shaped, and the rubber to be processed being put into the feeding hopper 8. A first mounting shaft 14 is arranged at the bottom of the housing 13, a second mounting shaft 16 is arranged above the first mounting shaft 14, and a plurality of cutting blades 6 are arranged on the surface of the first mounting shaft 14 and the second mounting shaft 16, such as Figure 3 As shown, there are several groups of segmenting blades 6, each group of segmenting blades 6 is multiple, and the upper and lower segmenting blades 6 are staggered. One end of the first mounting shaft 14 and both ends of the second mounting shaft 16 are respectively rotatably connected to the housing 13. One end of the first mounting shaft 14 and the second mounting shaft 16 extend to the outside of the housing 13 and are respectively connected to the driving device. The driving device is provided on the support 1 and is used to drive the first mounting shaft 14 and the second mounting shaft 16 to rotate.

[0030] Specifically, the rubber to be mixed is put into the housing 13 through the feed hopper 8. Since the surfaces of the first mounting shaft 14 and the second mounting shaft 16 are covered with segmenting blades 6, the staggered segmenting blades 6 can quickly cut the rubber into small segments. Moreover, as the segmenting blades 6 continuously stir, the segmented rubber is mixed. The rubber continuously moves in the gaps between the segmenting blades 6, allowing the segmenting blades 6 to knead the rubber.

[0031] like Figure 3 As shown, the segment cutting blade 6 is only provided below the feed hopper 8, and it mainly plays the role of segment cutting. Several groups of kneading rods 31 are provided on the surface of the end of the first mounting shaft 14 and the second mounting shaft 16 away from the feed hopper 8, and the upper and lower kneading rods 31 are staggered. Each group of kneading rods consists of multiple rods, and the surface of the kneading rods 31 is rough. When the upper and lower kneading rods 31 rotate, the rubber can shuttle through them and knead the rubber.

[0032] Further, such as Figure 1 As shown, the shell 13 is divided into two parts, the upper and lower parts. The second installation shaft 16 is arranged in the shell 13 located at the upper part, and the first installation shaft 14 is arranged in the shell 13 located at the lower part. This makes it convenient to open the upper part of the shell 13 for inspection or maintenance of the interior. Skirts 5 are provided at the edges of the upper and lower parts of the shell 13, and the skirts 5 are fastened by bolts.

[0033] Next, we will introduce the extrusion device, such as Figure 3As shown, the extrusion device is at the bottom of one end of the shell 13, and the extrusion device is connected to the end of the first installation shaft 14 away from the driving device, so that when the first installation shaft 14 rotates, it can drive the extrusion device to move. The extrusion device is connected to the shell 13, so that the cut and stirred rubber can enter the extrusion device for further mixing and can be extruded by the extrusion device. The specific structure of the extrusion device includes a conveying cylinder 4 and a spiral shaft 29. One end of the conveying cylinder 4 is connected to the extrusion cylinder 3, and the two are connected by a flange. The other end of the conveying cylinder 4 is connected to the shell 13. The end of the extrusion cylinder 3 away from the conveying cylinder 4 is provided with an end cover 27, and the end cover 27 is fastened to the end of the extrusion cylinder 3 by bolts, as shown in FIG. Figure 1 As shown, a plurality of extrusion holes 26 are provided on the surface of the end cover 27;

[0034] like Figure 3 As shown, the screw shaft 29 is placed in the conveying cylinder 4 and the extrusion cylinder 3, as shown in FIG. Figure 1 As shown, the conveying cylinder 4 and the extrusion cylinder 3 are also mounted on the support 1 via the support legs 12. One end of the spiral shaft 29 is rotatably mounted at the center of the end cap 27. The extrusion holes 26 are distributed around the spiral shaft 29. The other end of the spiral shaft 29 is coaxially connected to the first mounting shaft 14. The diameter of the extrusion cylinder 3 is smaller than that of the conveying cylinder 4. The spiral blades on the surface of the spiral shaft 29 are divided into spiral conveying blades 28 placed in the conveying cylinder 4 and extrusion spiral blades 15 located in the extrusion cylinder 3. That is, the extrusion spiral blades 15 match the extrusion cylinder 3, and the spiral conveying blades 28 match the conveying cylinder 4. When the rubber passing through the conveying cylinder 4 reaches the extrusion cylinder 3, the pressure of the rubber entering the extrusion cylinder 3 increases due to the sudden contraction of the extrusion cylinder 3. Finally, the rubber extruded by the extrusion cylinder 3 is extruded from the extrusion holes 26.

[0035] Furthermore, it should be noted that in order to increase the pressure in the extrusion barrel 3, as Figure 3 As shown, the pitch of the extrusion spiral blades 15 is denser than the pitch of the spiral conveying blades 28 . In other words, the pitch of the extrusion spiral blades 15 is smaller than the pitch of the spiral conveying blades 28 , which can significantly increase the extrusion pressure.

[0036] After being cut and stirred in the housing 13, the rubber moves to the conveying cylinder 4. When the rubber is extruded from the surface of the end cap 27 at the end of the extrusion cylinder 3, if it is not sheared, the rubber will be extruded from the extrusion hole 26 in the form of long strips. In order to make the extruded rubber into segments, the end of the spiral shaft 29 away from the housing 13 is extended to the outside of the end cap 27. An annular knife seat 17 is installed on the surface of the spiral shaft 29 outside the end cap 27. A plurality of cutting blades 18 are provided on the edge of the annular knife seat 17. The cutting blades 18 rotate as the spiral shaft 29 rotates, cutting the rubber extruded from the extrusion hole 26 into segments for easy recycling.

[0037] like Figure 2 and Figure 4As shown, in order to prevent the cutting blade 18 from injuring people when it rotates, a protective cover 2 is provided on the end of the cutting blade 18 to cover the cutting blade 18, and the container for taking the rubber block can be placed under the protective cover 2. At the same time, a protective cover is installed above the drive shaft 22 and the first mounting shaft 14 and the second mounting shaft 16 (as shown in FIG. Figure 2 shown, not numbered in the figure).

[0038] Further, such as Figure 1 and Figure 3 As shown, multiple water inlet nozzles 7 are installed on the top of the shell 13 and the top of the conveying cylinder 4. The water inlet nozzles 7 are connected to the water pump 11 through pipes. The water pump 11 is a high-pressure water pump and is arranged on the support 1. The external water is evenly sprayed into the top of the shell 13 and the conveying cylinder 4 through the water inlet nozzles 7. First, it can cool the stirred rubber, and the water flow can also flush impurities in the rubber. Since the water spraying process is continuous, multiple drain ports 30 are provided at the bottom of the shell 13 and the conveying cylinder 4. The drain ports 30 are connected to the drain pipe through pipes;

[0039] When the rubber moves to the extrusion cylinder 3, the increase in pressure can squeeze out the water cup in the rubber and flow out from the drain port, reducing the water content in the extruded rubber.

[0040] Based on the above embodiment, the first mounting shaft 14 and the second mounting shaft 16 can cut the rubber into segments when they rotate in the same direction. However, if the first mounting shaft 14 and the second mounting shaft 16 rotate synchronously and in opposite directions, the upper and lower cutting blades 6 will be engaged with each other, which can accelerate the cutting speed. Therefore, the driving device in this application has its own special structure, such as Figure 3 As shown, the drive device includes a gearbox 9, and two drive shafts 22 are rotatably mounted on one side of the gearbox 9. The two drive shafts 22 are respectively connected to the first installation shaft 14 and the second installation shaft 16. The drive shafts 22 are respectively connected to the first installation shaft 14 and the second installation shaft 16 through couplings.

[0041] The ends of the two drive shafts 22 away from the housing 13 extend into the gearbox 9, and the first drive gears 19 are installed on the ends of the drive shafts 22. A support shaft 21 is provided parallel to the middle of the two drive shafts 22. Both ends of the support shaft 21 are rotatably connected to the gearbox 9. A second drive gear 25 is installed on the end of the support shaft 21 close to the first drive gear 19. The second drive gear 25 is respectively engaged with the two first drive gears 19.

[0042] A first transmission gear 20 is mounted on the other end of the support shaft 21, and a second transmission gear 23 is meshed below the first transmission gear 20. The second transmission gear 23 is mounted on an input shaft 24, and the other end of the input shaft 24 is rotatably mounted on the gearbox 9. The end of the input shaft 24 away from the second transmission gear 23 is connected to the drive motor 10;

[0043] Specifically, the diameter of the second transmission gear 23 is smaller than that of the first transmission gear 20, thus forming a rotation structure in which the small gear drives the large gear, thereby increasing the output torque of the drive motor. The first transmission gear 20 will drive the second drive gear 25 to rotate through the support shaft 21, and the second drive gear 25 will simultaneously drive the first drive gear 19 to rotate. Since the two are distributed on the upper and lower sides of the second drive gear 25, the two first drive gears 19 move synchronously and in opposite directions.

[0044] Based on the above embodiment, further optimization can be performed, such as Figure 3 As shown, the bottom of the housing 13 can be designed as an inclined structure, that is, the housing 13 is inclined toward the conveying cylinder 4, and the conveying cylinder 4 is arranged at the bottom of the inclined structure, so that the rubber can flow toward the conveying cylinder 4 in the overlayer of the cut segment;

[0045] At the same time, the lengths of the segmenting blade 6 and the kneading rod 31 on the surface of the first mounting shaft 14 become longer as the shell 13 tilts, so that the segmenting blade 6 and the kneading rod 31 are always tangent to the bottom of the shell 13.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber mixing device, comprising a housing (13), a feeding hopper (8) being provided on the top of the housing (13), characterized in that: It also includes an extrusion device arranged at the bottom of one end of the shell (13), and the extrusion device is communicated with the shell (13); A first mounting shaft (14) is provided at the bottom of the housing (13), one end of the first mounting shaft (14) is connected to the extrusion device, a second mounting shaft (16) is provided above the first mounting shaft (14), and both ends of the second mounting shaft (16) and the end of the first mounting shaft (14) away from the extrusion device are respectively rotatably connected to the housing (13); The surfaces of the first installation shaft (14) and the second installation shaft (16) are both provided with a plurality of cutting blades (6), and the ends of the first installation shaft (14) and the second installation shaft (16) away from the extrusion device are respectively connected to the driving device.

2. The rubber mixing device according to claim 1, characterized in that: There are several groups of segmenting blades (6) distributed below the feed hopper (8), each group of segmenting blades (6) comprises a plurality of segmenting blades, and the upper and lower segmenting blades (6) are staggered. A plurality of groups of kneading rods (31) are provided on the surface of one end of the first installation shaft (14) and the second installation shaft (16) away from the feed hopper (8), each group of kneading rods (31) comprises a plurality of kneading rods, and the upper and lower kneading rods (31) are staggeredly distributed.

3. The rubber mixing device according to claim 2, characterized in that: The extrusion device comprises a conveying cylinder (4) and a screw shaft (29), one end of the conveying cylinder (4) is connected to the extrusion cylinder (3), and the other end is connected to the housing (13), an end of the extrusion cylinder (3) away from the conveying cylinder (4) is provided with an end cover (27), and a surface of the end cover (27) is provided with a plurality of extrusion holes (26); The spiral shaft (29) is placed in the conveying cylinder (4) and the extrusion cylinder (3), one end of which is rotatably mounted at the center of the end cover (27), and the other end is coaxially connected to the first mounting shaft (14).

4. The rubber mixing device according to claim 3, characterized in that: The diameter of the extrusion cylinder (3) is smaller than the diameter of the conveying cylinder (4); the spiral blades on the surface of the spiral shaft (29) are divided into spiral conveying blades (28) placed in the conveying cylinder (4) and extrusion spiral blades (15) located in the extrusion cylinder (3).

5. The rubber mixing device according to claim 4, characterized in that: One end of the spiral shaft (29) away from the housing (13) extends to the outside of the end cover (27). An annular knife seat (17) is installed on the surface of the spiral shaft (29) outside the end cover (27). The edge of the annular knife seat (17) is provided with multiple cutting blades (18).

6. The rubber mixing device according to claim 5, characterized in that: A plurality of water inlet nozzles (7) are installed on the top of the housing (13) and the top of the delivery cylinder (4), and the water inlet nozzles (7) are connected to the water delivery pump (11) through a pipeline; A plurality of drainage ports (30) are provided at the bottom of the housing (13) and the conveying cylinder (4), and the drainage ports (30) are connected to the drainage pipe through a pipeline.

7. The rubber mixing device according to claim 1, characterized in that: The driving device is mounted on the support (1), and the housing (13) and the extrusion device are respectively arranged on the support (1) through supporting legs (12).

8. The rubber mixing device according to any one of claims 1 to 7, characterized in that: The driving device comprises a gearbox (9), and two driving shafts (22) are rotatably mounted on one side of the gearbox (9), and the two driving shafts (22) are respectively connected to a first mounting shaft (14) and a second mounting shaft (16); One end of the two drive shafts (22) away from the housing (13) extends into the gearbox (9), and a first drive gear (19) is installed on the end of each drive shaft (22); A support shaft (21) is provided in parallel in the middle of the two drive shafts (22), both ends of the support shaft (21) are rotatably connected to the gearbox (9), and a second drive gear (25) is installed at one end of the support shaft (21) close to the first drive gear (19), and the second drive gear (25) is respectively engaged with the two first drive gears (19); A first transmission gear (20) is mounted on the other end of the support shaft (21), a second transmission gear (23) is meshed below the first transmission gear (20), the second transmission gear (23) is mounted on an input shaft (24), the other end of the input shaft (24) is rotatably mounted on a gearbox (9), and one end of the input shaft (24) away from the second transmission gear (23) is connected to a drive motor (10).

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