A mixer discharging structure with anti-blocking function

Abstract

The utility model discloses a kind of blanking structure of internal mixer with anti-blocking function, including blanking hopper, the inner wall of blanking hopper is fixedly installed with protective sleeve by two support rods, the outer wall of blanking hopper is fixedly installed with two sealing sleeves by installation opening, two The transmission shaft is rotatably installed in sealing sleeve, the outer wall of blanking hopper is fixedly installed with the first motor connected with transmission shaft by support mechanism.The utility model is equipped with transmission shaft, bevel gear, stirring shaft and first auger etc. component, transmission shaft is driven stirring shaft rotation by bevel gear, cooperate longitudinal rotation's stirring blade and horizontal rotation's stirring rod form multidimensional stirring, can effectively break up material agglomerate, destroy bridge structure, simultaneously, first auger push hopper bottom material, second auger continuously conveys to subsequent process, double delivery design completely solves the problem of traditional structure blanking blockage, guarantee material conveying smooth.

Description

Technical Field

[0001] This utility model relates to the field of internal mixer technology, and in particular to a feeding structure for an internal mixer with anti-clogging function. Background Technology

[0002] An internal mixer (closed rubber mixing mill) is an industrial equipment specifically used for plasticizing and mixing polymer materials such as rubber and plastics. Its core feature is that it performs high-intensity shearing and mixing of materials through a relatively rotating rotor in a closed, adjustable temperature and pressure environment.

[0003] After mixing polymer materials, the internal mixer needs to transport the materials to subsequent processes (such as open milling and extrusion) through the feeding structure. The existing internal mixer feeding structures are mostly single funnel or straight pipe designs. After mixing, the materials are highly viscous and easy to agglomerate, forming "bridging" accumulations in the funnel. Especially at the corner of the bottom of the funnel, it is difficult to break through the agglomeration blockage by gravity alone. Traditional structures lack targeted residue removal components. The residual materials on the inner wall of the bottom of the funnel are easily carbonized after repeated heating, which not only contaminates the subsequent materials but also exacerbates the risk of blockage. Therefore, it is necessary to redesign an internal mixer feeding structure with anti-blocking function to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a feeding structure for a mixing mill with anti-clogging function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A feeding structure for a mixer with anti-clogging function includes a feeding hopper. A protective sleeve is fixedly installed on the inner wall of the feeding hopper via two support rods. Two sealing sleeves are fixedly installed on the outer wall of the feeding hopper via an installation opening. A drive shaft is rotatably installed inside the two sealing sleeves. A first motor connected to the drive shaft is fixedly installed on the outer wall of the feeding hopper via a support mechanism. Multiple stirring blades are fixedly installed on both sides of the outer wall of the drive shaft via a first installation mechanism. A stirring shaft is rotatably installed through the protective sleeve. Bevel gears are fixedly installed on the outer walls of both the stirring shaft and the drive shaft. The two bevel gears are located inside the protective sleeve and mesh perpendicularly. Multiple stirring rods are fixedly installed on the outer wall of the stirring shaft via a second installation mechanism. A first auger is fixedly installed at the end of the stirring shaft. A feeding channel is fixedly installed on the outer wall of the feeding hopper's discharge end. A second auger is rotatably installed inside the feeding channel. A second motor connected to the rotating shaft of the second auger is fixedly installed on the outer wall of the feeding channel.

[0006] Preferably, the support mechanism includes a support plate fixedly installed on the outer wall of the hopper, and the first motor is fixedly installed on the outer wall of the support plate.

[0007] Preferably, the first mounting mechanism includes a first mounting sleeve fixedly mounted on the outer wall of the drive shaft, and each of the stirring blades is fixedly mounted on the outer wall of the first mounting sleeve.

[0008] Preferably, the second mounting mechanism includes a second mounting sleeve fixedly mounted on the outer wall of the stirring shaft, and each of the stirring rods is fixedly mounted on the outer wall of the second mounting sleeve.

[0009] Preferably, the outer wall of the stirring shaft is fixedly installed with multiple connecting rods by fixing blocks, and each connecting rod end is fixedly installed with a scraper that fits against the inner bottom wall of the hopper. The inner bottom wall of the hopper and each scraper are inclined.

[0010] Preferably, the outer wall of the hopper is provided with an observation port communicating with the interior, and the outer wall of the hopper is fixedly installed with an observation window that cooperates with the observation port by multiple bolts, and a sealing gasket is fixedly installed on the inner wall of the observation window.

[0011] The beneficial effects of this utility model are: 1. By setting up components such as a drive shaft, bevel gear, stirring shaft and first auger, the drive shaft drives the stirring shaft to rotate with the bevel gear. Together with the longitudinally rotating stirring blade and the horizontally rotating stirring rod, multi-dimensional stirring is formed, which can effectively break up material agglomerates and destroy bridging structures. At the same time, the first auger pushes the material at the bottom of the hopper, and the second auger continuously conveys it to the subsequent process. The dual conveying design completely solves the material discharge blockage problem of the traditional structure and ensures smooth material conveying.

[0012] 2. By setting up components such as a fixed block, connecting rod, and scraper, the fixed block drives the scraper to slide along the bottom wall of the hopper with the help of the connecting rod. This can remove residual sticky materials in real time, avoid contaminating subsequent materials due to repeated heating and carbonization, reduce the impact of residual accumulation on material feeding, and improve the consistency of material quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the feeding structure of a mixing mill with anti-clogging function proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the vertical section structure; Figure 3 This is a top view schematic diagram of a feeding structure for an internal mixer with anti-clogging function proposed in this utility model; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0014] In the diagram: 1. Feed hopper, 2. Support rod, 3. Protective sleeve, 4. Sealing sleeve, 5. Drive shaft, 6. Support plate, 7. First motor, 8. First mounting sleeve, 9. Stirring blade, 10. Stirring shaft, 11. Bevel gear, 12. Second mounting sleeve, 13. Stirring rod, 14. First auger, 15. Fixing block, 16. Connecting rod, 17. Scraper, 18. Feeding channel, 19. Second auger, 20. Second motor, 21. Observation window. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-5 A feeding structure for a mixer with anti-clogging function includes a feeding hopper 1. A protective sleeve 3 is fixedly installed on the inner wall of the feeding hopper 1 via two support rods 2. Two sealing sleeves 4 are fixedly installed on the outer wall of the feeding hopper 1 through an installation opening. A drive shaft 5 is rotatably installed inside the two sealing sleeves 4. A first motor 7 connected to the drive shaft 5 is fixedly installed on the outer wall of the feeding hopper 1 via a support mechanism. Multiple stirring blades 9 are fixedly installed on both sides of the outer wall of the drive shaft 5 via a first installation mechanism. A stirring shaft is rotatably installed through the protective sleeve 3. 10. Both the stirring shaft 10 and the transmission shaft 5 are fixedly mounted with bevel gears 11. Both bevel gears 11 are inside the protective sleeve 3 and mesh vertically. Multiple stirring rods 13 are fixedly mounted on the outer wall of the stirring shaft 10 through the second mounting mechanism. A first auger 14 is fixedly mounted at the end of the stirring shaft 10. A discharge channel 18 is fixedly mounted on the outer wall of the discharge end of the hopper 1. A second auger 19 is rotatably mounted inside the discharge channel 18. A second motor 20 connected to the rotating shaft of the second auger 19 is fixedly mounted on the outer wall of the discharge channel 18.

[0017] Furthermore, the protective sleeve 3 is made of wear-resistant material, which can effectively isolate the material from the bevel gear 11 and prevent the material from sticking and affecting the gear meshing accuracy. The sealing sleeve 4 fits tightly with the transmission shaft 5, which can not only ensure the flexible rotation of the transmission shaft 5, but also prevent the material in the hopper 1 from leaking out of the gap.

[0018] The support mechanism includes a support plate 6 fixedly installed on the outer wall of the hopper 1, and a first motor 7 fixedly installed on the outer wall of the support plate 6.

[0019] Furthermore, the support plate 6 is fixed to the outer wall of the hopper 1 by welding, which has high structural strength and can evenly transmit the vibration of the first motor 7 to the hopper 1, reducing the impact of motor shaking on the transmission stability of the transmission shaft 5.

[0020] The first mounting mechanism includes a first mounting sleeve 8 fixedly mounted on the outer wall of the drive shaft 5, and each stirring blade 9 is fixedly mounted on the outer wall of the first mounting sleeve 8.

[0021] Furthermore, the first mounting sleeve 8 is fixed to the drive shaft 5 by a key connection, which is firm and easy to disassemble.

[0022] The second mounting mechanism includes a second mounting sleeve 12 fixedly mounted on the outer wall of the stirring shaft 10, and each stirring rod 13 is fixedly mounted on the outer wall of the second mounting sleeve 12.

[0023] Furthermore, the second mounting sleeves 12 are spaced apart along the axial direction of the stirring shaft 10, so that the stirring rods 13 form stirring zones at different heights, which enhances the stirring effect on the material in the middle of the hopper 1 and avoids the accumulation of material at the same height.

[0024] Multiple connecting rods 16 are fixedly installed on the outer wall of the stirring shaft 10 by fixing blocks 15. Each connecting rod 16 has a scraper 17 fixedly installed at its end, which fits against the inner bottom wall of the hopper 1. The inner bottom wall of the hopper 1 and each scraper 17 are inclined.

[0025] Furthermore, the scraper 17 is made of elastic and wear-resistant material, which has a high degree of fit with the inner bottom wall of the hopper 1. When it rotates with the stirring shaft 10, it can tightly scrape off the residual material. The inclined design guides the scraped material to flow towards the first auger 14.

[0026] The outer wall of the hopper 1 is provided with an observation port that communicates with the interior. An observation window 21 that matches the observation port is fixedly installed on the outer wall of the hopper 1 by multiple bolts. A sealing gasket is fixedly installed on the inner wall of the observation window 21.

[0027] Furthermore, the observation window 21 is made of transparent high-temperature resistant material, allowing operators to clearly observe the material status and component operation in the hopper 1. The sealing gasket is made of oil-resistant rubber, which can prevent material dust from overflowing from the gap between the observation window 21 and the hopper 1.

[0028] When this utility model is in use, before the material is discharged after the mixing of materials in the internal mixer is completed, the first motor 7 and the second motor 20 can be started by an external controller. The first motor 7 outputs power to drive the transmission shaft 5 to rotate inside the sealing sleeve 4. The sealing sleeve 4 always maintains a sealed fit between the transmission shaft 5 and the outer wall of the discharge hopper 1 to prevent material leakage from the rotation gap. At the same time, the second motor 20 directly drives the second auger 19 to rotate inside the discharge channel 18 to prepare for subsequent material conveying. During the rotation of the transmission shaft 5, the stirring blades 9 fixed on both sides of its outer wall by the first mounting sleeve 8 rotate longitudinally synchronously with the transmission shaft 5. The stirring blades 9 stir the mixed material to be conveyed in the discharge hopper 1 in the longitudinal direction, breaking up the blocky structure formed by the viscous agglomeration in the material, destroying the foundation for the material to form a "bridge" in the hopper, and ensuring that the material is in a loose and flowable state. When the drive shaft 5 rotates, the bevel gear 11 fixed on its outer wall rotates synchronously. Because the two bevel gears 11 mesh vertically inside the protective sleeve 3, the rotation of the drive shaft 5 is transmitted to the stirring shaft 10 through the bevel gears 11, causing the stirring shaft 10 to rotate vertically inside the protective sleeve 3. When the stirring shaft 10 rotates, the stirring rod 13 fixed on its outer wall through the second mounting sleeve 12 rotates horizontally synchronously with the stirring shaft 10, stirring the material in the hopper 1 horizontally. This works in conjunction with the longitudinal stirring of the stirring blades 9 to further prevent the material from accumulating in the middle of the hopper wall and ensure that the material in the hopper is stirred horizontally. The materials at the location can flow smoothly. While the stirring shaft 10 rotates, the first auger 14 fixed at its end rotates synchronously with the stirring shaft 10. The spiral blades of the first auger 14 are in contact with the inner bottom wall of the hopper 1, continuously pushing the material gathered at the bottom of the hopper to the discharge end of the hopper 1. At the same time, the connecting rod 16 fixed to the outer wall of the stirring shaft 10 through the fixing block 15 rotates with the stirring shaft 10. The scraper 17 fixed at the end of the connecting rod 16 slides along the inner bottom wall of the hopper 1, scraping away the sticky material remaining on the inner bottom wall of the hopper 1 in real time, preventing the residual material from accumulating and carbonizing due to residual heat. After the material pushed by the first auger 14 enters the feeding channel 18 from the discharge end of the feeding hopper 1, the second auger 19 rotating inside the feeding channel 18 continuously conveys the material to the subsequent process, realizing the continuous transition of material from the feeding hopper 1 to the subsequent equipment. During the entire feeding process, the operator can observe the flow status of the material in the feeding hopper 1 and the operation of the stirring and pushing components in real time through the observation window 21 fixed on the outer wall of the feeding hopper 1. If material blockage or component abnormality is found, the machine can be stopped in time through the external controller. After the internal mixer feeding operation is completed, the material output of the internal mixer is turned off by the external controller, and the first motor 7 and the second motor 20 continue to run for a short time. The stirring action of the stirring blade 9 and the stirring rod 13, the scraping action of the scraper 17, and the conveying action of the first auger 14 and the second auger 19 are used to remove the small amount of material remaining on the inner wall of the feeding hopper 1 and the inner wall of the feeding channel 18. Then the first motor 7 and the second motor 20 are turned off to complete a single feeding operation.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feeding structure for an internal mixer with anti-clogging function, comprising a feeding hopper (1), characterized in that, The inner wall of the hopper (1) is fixedly fitted with a protective sleeve (3) by two support rods (2). The outer wall of the hopper (1) is fixedly fitted with two sealing sleeves (4) through an installation opening. A drive shaft (5) is rotatably installed inside the two sealing sleeves (4). A first motor (7) connected to the drive shaft (5) is fixedly installed on the outer wall of the hopper (1) by a support mechanism. Multiple stirring blades (9) are fixedly installed on both sides of the outer wall of the drive shaft (5) by a first installation mechanism. A stirring shaft (10) is rotatably installed inside the protective sleeve (3). The stirring shaft (10) is connected to the drive shaft. (5) A bevel gear (11) is fixedly installed on the outer wall. The two bevel gears (11) are inside the protective sleeve (3) and mesh vertically. Multiple stirring rods (13) are fixedly installed on the outer wall of the stirring shaft (10) through the second installation mechanism. A first auger (14) is fixedly installed at the end of the stirring shaft (10). A feeding channel (18) is fixedly installed on the outer wall of the discharge end of the feeding hopper (1). A second auger (19) is rotatably installed inside the feeding channel (18). A second motor (20) connected to the rotating shaft of the second auger (19) is fixedly installed on the outer wall of the feeding channel (18).

2. The internal mixer feeding structure with anti-clogging function according to claim 1, characterized in that, The support mechanism includes a support plate (6) fixedly installed on the outer wall of the hopper (1), and the first motor (7) is fixedly installed on the outer wall of the support plate (6).

3. The internal mixer feeding structure with anti-clogging function according to claim 2, characterized in that, The first mounting mechanism includes a first mounting sleeve (8) fixedly mounted on the outer wall of the drive shaft (5), and each of the stirring blades (9) is fixedly mounted on the outer wall of the first mounting sleeve (8).

4. The internal mixer feeding structure with anti-clogging function according to claim 3, characterized in that, The second mounting mechanism includes a second mounting sleeve (12) fixedly mounted on the outer wall of the stirring shaft (10), and each of the stirring rods (13) is fixedly mounted on the outer wall of the second mounting sleeve (12).

5. The internal mixer feeding structure with anti-clogging function according to claim 4, characterized in that, The outer wall of the stirring shaft (10) is fixedly installed with multiple connecting rods (16) by fixing blocks (15). Each connecting rod (16) is fixedly installed with a scraper (17) that fits against the inner bottom wall of the hopper (1). The inner bottom wall of the hopper (1) and each scraper (17) are inclined.

6. The internal mixer feeding structure with anti-clogging function according to claim 5, characterized in that, The outer wall of the feeding hopper (1) is provided with an observation port that communicates with the interior. The outer wall of the feeding hopper (1) is fixedly installed with an observation window (21) that matches the observation port by multiple bolts. The inner wall of the observation window (21) is fixedly installed with a sealing gasket.

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