Modulation cartridge cleaning device and modulation cartridge thereof

Abstract

This application relates to the technical field of feed processing equipment, and discloses a cleaning device for a mixing drum and the mixing drum thereof. The cleaning device includes a scraper and an mounting assembly. The mounting assembly is used to detachably connect the scraper and the mixing blade. The scraper abuts against the inner wall of the drum body, forming a material-containing cavity between the scraper and the inner wall. An inlet communicating with the material-containing cavity is opened on the side of the scraper facing the rotation direction of the mixing blade. When the scraper rotates with the mixing blade to the positions of the inlet and outlet, the two ends of the material-containing cavity along the length of the scraper can be connected to the inlet and outlet respectively. During feed mixing, the scraper does not need to be installed inside the mixing drum, thus preventing feed adhesion. When cleaning the mixing drum, the scraper is fixed to the mixing blade to scrape off waste from the inner wall of the drum. The waste enters the material-containing cavity from the inlet and is then thrown out of the drum body through the inlet and outlet, allowing the horizontally placed mixing drum to be cleaned quickly and easily.

Description

Technical Field

[0001] This application relates to the technical field of feed processing equipment, and in particular to a mixing cylinder cleaning device and the mixing cylinder thereof. Background Technology

[0002] In the feed production process, feed mills need to use a mixing drum to thoroughly mix the feed before it can be formed into pellets and sent to the next process for extrusion. The mixing drum consists of a horizontally placed cylindrical body and a stirring shaft installed inside the drum. The stirring shaft is equipped with spiral stirring blades. A motor that drives the stirring shaft to rotate is installed outside the drum. The side wall of the drum has an inlet and an outlet near both ends, respectively. The feed enters through the inlet, is stirred by the stirring blades, and then exits through the outlet.

[0003] After prolonged use, a large amount of feed will adhere to and accumulate on the inner wall of the mixing drum, which will affect the quality of subsequent feed preparation. Existing mixing equipment has scrapers and a drive unit inside the mixing drum to move the scrapers. During mixing, the drive unit drives the scrapers away from the inner wall of the mixing drum and keeps them stationary. When cleaning is required, the scrapers then come into contact with the inner wall of the mixing drum and are driven to rotate circumferentially along the inner wall, thereby scraping off the feed adhering to the inner wall. Moreover, existing mixing drums are all placed vertically, and the scraped feed falls directly down to the discharge port below.

[0004] However, if the scraper is left in the mixing drum for a long time, feed will stick to the surface of the scraper, which will affect the cleaning effect. When the feed is scraped into the horizontally placed mixing drum, it is also difficult to be discharged from the discharge port, making the cleaning process very inconvenient. Summary of the Invention

[0005] To address the inconvenience of cleaning the inside of the modulation cylinder, this application provides a modulation cylinder cleaning device and the modulation cylinder thereof.

[0006] In a first aspect, this application provides a modulation cylinder cleaning device, which adopts the following technical solution:

[0007] A cleaning device for a mixing cylinder includes a scraper and a mounting assembly. The mounting assembly is used to detachably connect the scraper and the stirring blade. The scraper abuts against the inner wall of the cylinder and forms a material-containing cavity between the scraper and the inner wall of the cylinder. The scraper has an inlet on its side facing the rotation direction of the stirring blade, which communicates with the material-containing cavity. When the scraper rotates with the stirring blade to the positions of the inlet and outlet, the two ends of the material-containing cavity along the length of the scraper can be connected to the inlet and outlet respectively.

[0008] By adopting the above technical solution, the scraper and the mixing blade are detachably connected. When the mixing drum is processing feed, the scraper is not installed inside the drum, thus preventing feed from adhering to it. When cleaning the mixing drum after prolonged use, the scraper is fixed to the mixing blade using the mounting assembly and pressed against the inner wall of the drum. The drum's own motor can drive the scraper to rotate around the central axis of the drum, scraping off the waste material adhering to the inner wall. No other driving components are required, resulting in a simple structure and convenient operation. The scraper and the inner wall of the drum form a material receiving cavity. When the scraper rotates with the mixing blade, the scraper scrapes off the waste material on the side facing the rotation direction and it enters the material receiving cavity through the inlet. The waste material falls to the bottom of the cylinder. When the scraper rotates to the bottom of the cylinder, the waste material is pushed into the material receiving chamber. Whenever the scraper rotates to the position corresponding to the feed inlet and discharge outlet at both ends of the scraper, the waste material will be thrown out of the cylinder from both ends of the material receiving chamber through the feed inlet and discharge outlet. There is no need to make additional openings on the cylinder. You only need to disconnect the feed pipe and discharge pipe connected to the feed inlet and discharge outlet respectively. The scraper can throw out the waste material by rotating it several times, so that the horizontally placed mixing cylinder can be cleaned quickly and easily.

[0009] Optionally, the scraping component includes a first scraper and a second scraper connected at an acute angle. The opposite sides of the first scraper and the second scraper abut against the inner wall of the cylinder and form the material receiving cavity. The inlet is opened on the first scraper.

[0010] By adopting the above technical solution, the first scraper and the second scraper are connected to form a triangle, which can improve the structural strength of the scraper, reduce the possibility of deformation of the scraper, and make the scraper closely abut against the inner wall of the cylinder, thereby ensuring that the waste can be scraped off cleanly; a material-containing cavity that can accommodate waste is formed between the first scraper, the second scraper and the inner wall of the cylinder.

[0011] Optionally, the scraper is configured as a V-shape along the axial direction of the cylinder, with the V-shaped opening facing the rotation direction of the stirring blade. The scraper includes a first guide portion and a second guide portion connected to form the V-shape. The inlet is opened on the first scraper at the connection between the first guide portion and the second guide portion. When the scraper rotates to the point where the V-shaped opening faces downward, the two ends of the material receiving cavity along the length direction of the scraper correspond to the inlet and outlet, respectively.

[0012] By adopting the above technical solution, both the first and second scrapers are set in a V-shape, thus forming a V-shape for the entire scraping component. The V-shaped scraping component has a guiding function. The first and second guiding parts can pour the scraped waste into the inlet at the V-shaped apex, allowing the waste to enter the material-containing cavity more quickly. When the scraping component rotates to the point where the V-shaped opening faces downward, the two ends of the material-containing cavity correspond exactly to the inlet and outlet positions, and the waste is then thrown out. The first and second guiding parts are both inclined downward towards opposite ends, allowing more waste to enter the material-containing cavity and be discharged more quickly, improving cleaning efficiency. Moreover, the overall V-shape of the scraping component further reduces the possibility of scraping component deformation, thereby improving the scraping effect.

[0013] Optionally, a cover plate is hinged to the first scraper at the feed inlet, and the hinge point between the cover plate and the first scraper is close to the second scraper; when the scraper rotates to the position where the first scraper faces upward, the cover plate rotates downward under the force of gravity to open the feed inlet; when the scraper rotates to the position where the first scraper faces downward, the cover plate still rotates downward under the force of gravity to close the feed inlet.

[0014] By adopting the above technical solution, the cover plate will tend to rotate downwards due to gravity. When the scraper rotates to the point where the first scraper is facing upwards, i.e., the V-shaped opening is facing upwards, the downward rotation of the cover plate will open the feed inlet, allowing the scraped and accumulated waste to enter the material receiving cavity through the feed inlet. When the scraper rotates to the point where the first scraper is facing downwards, i.e., the V-shaped opening is facing downwards, the downward rotation of the cover plate will close the feed inlet to reduce the possibility of waste falling out of the material receiving cavity again, thereby allowing the waste to slide out of the cylinder from both ends of the material receiving cavity, further improving the cleaning efficiency.

[0015] Optionally, the feed inlet is spaced apart from the edge of the first scraper away from the second scraper, the inner surface of the feed inlet away from the second scraper is set as a limiting surface, the limiting surface is inclined away from the second scraper in the direction away from the material receiving cavity, and the side surface of the cover plate facing the limiting surface is set as an inclined surface that is parallel to and abuts against the limiting surface.

[0016] By adopting the above technical solution, when the scraper rotates to the point where the first scraper is facing down, the cover plate will rotate downwards to close the feed inlet. Through the cooperation of the limiting surface and the inclined surface of the cover plate, the cover plate can be further restricted from continuing to rotate to open the feed inlet in a direction away from the inside of the material chamber, so as to prevent waste from falling out of the material chamber.

[0017] Optionally, the scraper is connected to an elastic element that drives the cover plate to rotate toward the inside of the material cavity to open the inlet. The elastic force of the elastic element is less than the weight of the cover plate. When the scraper rotates past the vertical plane to the point where the first scraper is facing upward, the sum of the elastic force and the weight of the cover plate can drive the cover plate to open the inlet. When the scraper rotates past the vertical plane to the point where the first scraper is facing downward, the sum of the elastic force and the weight of the cover plate can drive the cover plate to close the inlet.

[0018] By adopting the above technical solution, although gravity can be used to open and close the feed inlet of the cover plate, when the scraper rotates to the vertical plane, that is, to the bottom of the cylinder, the feed inlet may be in a half-open state, making it difficult for the waste material accumulated at the bottom to enter the receiving cavity. Therefore, an elastic element is set to drive the cover plate to open. The elastic force of the elastic element should not be set too large so that the cover plate cannot be closed. Through the combination of the elastic force and gravity on the cover plate, the feed inlet can be opened when the scraper rotates to the first cover plate tilted upward, pushing the waste material accumulated at the bottom of the cylinder into the receiving cavity. When the first cover plate tilts downward, the feed inlet can be closed, further improving the cleaning efficiency.

[0019] Optionally, the first scraper and the second scraper are provided with a plurality of check plates along the length direction on the inner wall of the material receiving cavity, and a pair of check plates are brought closer to each other in a direction away from the feed inlet.

[0020] By adopting the above technical solution, multiple pairs of check plates are set in the material receiving cavity. The distance between a pair of check plates gradually decreases in the direction away from the V-shaped center of the scraper, which facilitates the movement of waste material to both ends of the scraper and reduces the possibility of waste material sliding back to the inlet, so as to discharge waste material more quickly.

[0021] Optionally, multiple mounting components are spaced apart along the length of the scraper. Each mounting component includes a fixing plate fixed to the side of the scraper away from the material receiving cavity and two clamping plates connected to the fixing plate. The stirring blade passes between the two clamping plates, and the ends of the two clamping plates away from the fixing plate are connected and fixed by bolts and nuts.

[0022] By adopting the above technical solution, a fixing plate for mounting two clamping plates is provided on the side of the scraper facing the inner wall of the cylinder. When installing the scraper, simply insert the two clamping plates through the narrow side of the stirring blade, and then use bolts and nuts to fix the two clamping plates to clamp the stirring blade. This fixes the scraper onto the stirring blade and abuts against the inner wall of the cylinder, making the installation and removal of the scraper convenient and quick. Furthermore, the gap between the two clamping plates provides space for the stirring blade to slide, allowing adjustment of the distance between the scraper and the inner wall of the cylinder, thus ensuring the scraper can press firmly against the inner wall of the cylinder to guarantee the scraping effect.

[0023] Optionally, the two clamps are installed on the same side of the fixing plate and are connected and fixed by bolts and nuts.

[0024] By adopting the above technical solution, both clamping plates can be detachably installed on the same side of the fixed plate, thereby adjusting the distance between the two clamping plates. This allows the clamping plates to be fixed and clamped as tightly as possible by bolts and nuts at both ends through which the mixing blade passes, thus clamping the mixing blade and reducing the occurrence of scraping parts detaching from the inner wall of the cylinder or even from the mixing blade during the cleaning process.

[0025] Secondly, this application provides a modulation cylinder, which adopts the following technical solution:

[0026] A mixing cylinder includes a cylinder body, a stirring shaft installed inside the cylinder body, a plurality of stirring blades arranged in a spiral shape along the length direction of the stirring shaft, a driving component for driving the stirring shaft to rotate, and the aforementioned mixing cylinder cleaning device. The side wall of the cylinder body is provided with an inlet and an outlet near both ends along the length direction, respectively. The middle part of the side wall of the cylinder body is also provided with an installation port for a scraper to enter the cylinder body. A sealing plate for covering the installation port is detachably connected to the installation port.

[0027] By adopting the above technical solution, an installation port is opened on the cylinder. During installation, the scraper is simply placed into the cylinder through the installation port. The operator fixes the scraper to the mixing blade at the installation port using a clamp. In addition, the operator can also reach into the feed inlet and discharge outlet to fix the scraper to more mixing blades, thereby improving the stability of the scraper installation structure and further ensuring the scraping effect.

[0028] In summary, this application includes at least one of the following beneficial effects:

[0029] 1. The scraper and the mixing blade are detachably connected. When the mixing drum is processing feed, the scraper is not installed inside the mixing drum, so the feed will not stick to it. When the mixing drum needs to be cleaned after a long period of use, the scraper is fixed to the mixing blade through the mounting component and abuts against the inner wall of the drum. The motor of the mixing drum itself can drive the scraper to rotate and scrape off the waste material adhering to the inner wall of the drum. The structure is simple and the operation is convenient.

[0030] 2. When the scraper rotates, the scraped waste enters the material-containing cavity formed between the scraper and the inner wall of the cylinder through the feed inlet. Some of the waste will fall to the bottom of the cylinder. When the scraper rotates to the bottom of the cylinder, the waste will also be pushed into the material-containing cavity. Whenever the scraper rotates to the position corresponding to the feed inlet and discharge outlet at both ends of the scraper, the waste will be thrown out of the cylinder from both ends of the material-containing cavity through the feed inlet and discharge outlet. This allows the horizontally placed mixing cylinder to be cleaned quickly and easily. The V-shaped scraper and the automatically opening and closing cover further improve the cleaning efficiency.

[0031] 3. The V-shaped scraper and the triangularly connected first and second scrapers effectively improve the structural strength of the scraper and reduce the possibility of deformation, so that the scraper can always be pressed against the cylinder during the cleaning process, thereby scraping away the waste material adhering to the inner wall of the cylinder. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the modulation cylinder cleaning device in Embodiment 1 of this application;

[0033] Figure 2 This is a cross-sectional view of the modulation cylinder cleaning device installed inside the modulation cylinder in Embodiment 1 of this application;

[0034] Figure 3 This is a cross-sectional view of the modulation cylinder cleaning device in another state installed inside the modulation cylinder in Embodiment 1 of this application;

[0035] Figure 4 yes Figure 1 Enlarged view of point A in the middle;

[0036] Figure 5 This is a schematic diagram of the modulation cylinder in Embodiment 2 of this application.

[0037] Reference numerals: 1. Scraper; 11. Material chamber; 12. Inlet; 121. Limiting surface; 13. First scraper; 14. Second scraper; 15. First guide; 16. Second guide; 17. Cover plate; 18. Elastic element; 19. Check plate; 2. Mounting assembly; 21. Fixing plate; 22. Clamping plate; 23. Bolt; 24. Nut; 3. Cylinder; 31. Inlet; 32. Outlet; 33. Mounting port; 34. Sealing plate; 4. Stirring shaft; 5. Stirring blade; 6. Drive component. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] Example 1:

[0040] Reference Figure 1 and Figure 2This application discloses a cleaning device for a mixing cylinder, including a scraper 1 and a mounting assembly 2. The mounting assembly 2 is used to detachably connect the scraper 1 and the stirring blade 5. The scraper 1 abuts against the inner wall of the cylinder 3 and forms a material receiving cavity 11 between the scraper 1 and the inner wall of the cylinder 3. The scraper 1 has an inlet 12 that communicates with the material receiving cavity 11 on the side facing the rotation direction of the stirring blade 5. When the scraper 1 rotates with the stirring blade 5 to the positions of the inlet 31 and the outlet 32, the two ends of the material receiving cavity 11 along the length direction of the scraper 1 can be connected to the inlet 31 and the outlet 32 ​​respectively. When preparing feed, the scraper 1 does not need to be installed inside the preparation cylinder, so that the feed will not stick. When cleaning the preparation cylinder, the scraper 1 is fixed on the stirring blade 5 to scrape off the waste material on the inner wall of the cylinder 3. The waste material enters the material chamber 11 from the feed inlet 12, and then is thrown out of the cylinder 3 through the feed inlet 31 and the discharge outlet 32, so that the horizontally placed preparation cylinder can also be cleaned quickly and easily.

[0041] Reference Figure 1 Multiple mounting components 2 are spaced apart along the length of the scraper 1, each corresponding to the position of a stirring blade 5. Each mounting component 2 includes a fixing plate 21 fixed to the side of the scraper 1 away from the material receiving cavity 11, and two clamping plates 22 connected to the fixing plate 21. The stirring blade 5 passes between the two clamping plates 22, and the ends of the two clamping plates 22 away from the fixing plate 21 are connected and fixed using bolts 23 and nuts 24. During installation, the two clamping plates 22 are passed through the narrow side of the stirring blade 5, and then the two clamping plates 22 are fixed with bolts 23 and nuts 24 to clamp the stirring blade 5. This fixes the scraper 1 onto the stirring blade 5 and abuts against the inner wall of the cylinder 3, making the assembly and disassembly of the scraper 1 convenient and quick.

[0042] In other embodiments, the two clamping plates 22 can be directly fixed to both sides of the fixing plate 21. In this case, the thickness of the fixing plate 21 must be equal to or slightly less than the thickness of the stirring blade 5 so that the two clamping plates 22 can clamp the stirring blade 5.

[0043] In this embodiment, refer to Figure 2 To accommodate different sizes of stirring blades 5 and improve the stability of the connection structure between the scraper 1 and the stirring blades 5, mounting holes are provided on the fixing plate 21, and connecting holes are provided at both ends of the clamping plate 22 along its length. Both clamping plates 22 are placed on the same side of the fixing plate 21 and clamp the stirring blades 5. Bolts 23 are passed through the mounting holes and connecting holes and then cooperate with nuts 24 to fix the clamping plates 22 to the fixing plate 21. Then, the other ends of the two clamping plates 22 are fixed. In addition, the gap between the two clamping plates 22 provides space for the stirring blades 5 to slide. On the one hand, it can accommodate stirring blades 5 of different widths, and on the other hand, it can adjust the distance between the scraper 1 and the inner wall of the cylinder 3, ensuring that the scraper 1 is always pressed against the inner wall of the cylinder 3 during the cleaning process.

[0044] It should be noted that, since the mounting component 2 clamps the mixing blade 5 from the side, the size of the scraper can be set to be larger to form a larger material-containing cavity 11, which can accommodate more waste material.

[0045] Specifically, refer to Figure 1 The scraper 1 includes a first scraper 13 and a second scraper 14 connected at an acute angle, that is, the first scraper 13 and the second scraper 14 are connected to form a triangle. The two opposite sides of the first scraper 13 and the second scraper 14 abut against the inner wall of the cylinder 3 and form a material receiving cavity 11. A plug for sealing both ends of the material receiving cavity 11 is provided between the two end faces of the first scraper 13 and the second scraper 14 along the length direction. The inlet 12 is opened on the first scraper 13. When the scraper 1 rotates with the stirring blade 5, the scraper 1 scrapes off the waste material on the side facing the direction of rotation and enters the material chamber 11 through the feed inlet 12. Even if some waste material falls to the bottom of the cylinder, when the scraper 1 rotates to the bottom of the cylinder, the waste material will also be pushed into the material chamber 11. Whenever the scraper 1 rotates to the position corresponding to the feed inlet 31 and the discharge outlet 32 ​​at both ends of the scraper 1, the waste material will be thrown out of the cylinder 3 from both ends of the material chamber 11 through the feed inlet 31 and the discharge outlet 32.

[0046] In other embodiments, the scraper 1 can be configured as a straight strip, and the feed inlet 12 is formed as a strip-shaped hole along the length of the scraper 1.

[0047] In this embodiment, refer to Figure 1 The scraper 1 is configured as a V-shape along the axial direction of the cylinder 3, with the V-shaped opening facing the rotation direction of the stirring blade 5. Specifically, the scraper 1 includes a first guide portion 15 and a second guide portion 16 connected and forming a V-shape. That is, the first scraper 13 and the second scraper 14 are both configured as V-shapes, so that the entire scraper 1 forms a V-shape. The feed inlet 12 is opened on the first scraper 13 at the connection between the first guide portion 15 and the second guide portion 16.

[0048] Reference Figure 2 The V-shaped scraper 1 has a guiding function. When the scraper 1 rotates to the point where the V-shaped opening faces upward, the first guide part 15 and the second guide part 16 can pour the scraped waste into the inlet 12 at the V-shaped tip, allowing the waste to enter the material receiving cavity 11 more quickly; see reference. Figure 3 When the scraper 1 rotates to the point where the V-shaped opening faces downwards, the two ends of the material receiving cavity 11 along the length of the scraper 1 correspond precisely to the positions of the inlet 31 and the outlet 32. Waste is then thrown out, allowing more waste to enter the material receiving cavity 11 and be discharged more quickly, thus improving cleaning efficiency. Furthermore, the overall V-shape of the scraper 1 further reduces the possibility of deformation.

[0049] Furthermore, refer to Figure 4To reduce the possibility of waste material falling out of the material receiving cavity 11 through the feed inlet 12 when the scraper 1 rotates to face downwards, a cover plate 17 is hinged to the first scraper 13 at the feed inlet 12 via a pivot. The hinge point between the cover plate 17 and the first scraper 13 is close to the second scraper 14. At this time, there is a gap between the feed inlet 12 and the edge of the first scraper 13 away from the second scraper 14. The inner surface of the feed inlet 12 away from the second scraper 14 is set as a limiting surface 121. The limiting surface 121 extends away from the material receiving cavity. The direction outside the cavity 11 is inclined away from the second scraper 14. The side surface of the cover plate 17 facing the limiting surface 121 is set as an inclined surface that is parallel to and abuts against the limiting surface 121. When the scraper 1 rotates to the first scraper 13 facing down, the cover plate 17 will rotate downward to close the feed port 12. Through the cooperation of the limiting surface 121 and the inclined surface of the cover plate 17, the cover plate 17 can be further restricted from continuing to rotate to open the feed port 12 away from the inside of the material cavity 11, so as to prevent waste from falling out of the material cavity 11.

[0050] The cover plate 17 is made of a high-density metal material. Furthermore, the scraper 1 is connected to an elastic element 18 that drives the cover plate 17 to rotate inward toward the material cavity 11 to open the inlet 12. The elastic force of the elastic element 18 is less than the weight of the cover plate 17. The elastic element 18 can be a torsion spring sleeved on the rotating shaft or a tension spring connected between the first scraper 13 and the second scraper 14. It should be noted that gravity always tends to drive the cover plate 17 to rotate downwards and vertically, while elasticity always tends to drive the cover plate 17 to rotate into the material receiving cavity 11. The sum of the gravity and elastic force vectors acting on the cover plate 17 should be set as follows: when the scraper 1 rotates at the bottom of the cylinder 3 and passes through the vertical plane until the first scraper 13 is facing upwards, the sum of the elastic force and gravity acting on the cover plate 17 can drive the cover plate 17 to open the feed inlet 12, thereby allowing the scraped and accumulated waste material to enter the material receiving cavity 11 through the feed inlet 12; when the scraper 1 rotates at the top of the cylinder 3 and passes through the vertical plane until the first scraper 13 is facing downwards, the sum of the elastic force and gravity acting on the cover plate 17 can drive the cover plate 17 to close the feed inlet 12, thereby allowing the waste material to slide out of the cylinder 3 from both ends of the material receiving cavity 11, further improving the cleaning efficiency.

[0051] Furthermore, in order to reduce the possibility of the waste material sliding back to the feed inlet 12, the first scraper 13 and the second scraper 14 are provided with a plurality of check plates 19 along the length direction on the inner wall of the material receiving cavity 11. A pair of check plates 19 move closer to each other in the direction away from the feed inlet 12. That is, the distance between a pair of check plates 19 gradually decreases in the direction away from the V-shaped middle of the scraper 1, so as to facilitate the waste material to move to both ends of the scraper 1 and discharge the waste material more quickly.

[0052] When manufacturing the cleaning device, firstly, multiple check plates 19 are welded onto the first scraper 13 and the second scraper 14 respectively. Then, the first scraper 13 and the second scraper 14 are welded together at an angle. Finally, the fixing plate 21 is welded to the connection between the first scraper 13 and the second scraper 14.

[0053] The implementation principle of the modulation cylinder cleaning device in this application embodiment is as follows:

[0054] The scraper 1 and the mixing blade 5 are detachably connected. When the mixing drum is processing feed, the scraper 1 does not need to be installed inside the mixing drum, thus preventing feed from adhering to it. When the mixing drum needs to be cleaned after prolonged use, the scraper 1 is fixed to the mixing blade 5 via the mounting assembly 2 and abuts against the inner wall of the drum body 3. The scraper 1 and the inner wall of the drum body 3 form a material receiving cavity 11. The motor of the mixing drum itself can drive the scraper 1 to rotate together with the mixing blade 5. The scraper 1 scrapes off the waste material facing the direction of rotation and enters the material receiving cavity 11 through the feed inlet 12. Specifically, when the scraper 1 rotates past the vertical plane at the bottom of the drum body 3 until the first scraper 13 faces upward, the sum of the elastic force and gravity on the cover plate 17 can... The drive cover 17 opens the feed inlet 12, allowing the scraped waste material collected by the first guide part 15 and the second guide part 16 to enter the material receiving cavity 11 through the feed inlet 12. When the scraper 1 rotates over the vertical plane at the top of the cylinder 3 until the first scraper 13 faces downward, the cover 17 closes the feed inlet 12 after being subjected to force. Whenever the scraper 1 rotates to the position corresponding to the feed inlet 31 and the discharge outlet 32 ​​at both ends of the scraper 1, the waste material will be thrown out of the cylinder 3 from both ends of the material receiving cavity 11 through the feed inlet 31 and the discharge outlet 32, further improving the cleaning efficiency.

[0055] Example 2:

[0056] Reference Figure 2 This application discloses a modulation cylinder, including a cylinder body 3, a stirring shaft 4 installed inside the cylinder body 3, a plurality of stirring blades 5 arranged in a spiral shape along the length direction of the stirring shaft 4, a driving component 6 for driving the stirring shaft 4 to rotate, and the above-mentioned modulation cylinder cleaning device. The side wall of the cylinder body 3 is provided with an inlet 31 and an outlet 32 ​​near both ends along the length direction, respectively. The middle of the side wall of the cylinder body 3 is also provided with an installation port 33 for the scraper 1 to enter the cylinder body 3. A sealing plate 34 for covering the installation port 33 is detachably connected to the installation port 33 by screws. It should be noted that the sealing plate 34 has a protruding part facing the inner wall of the cylinder body 3 to fill the installation port 33 until it is flush with the inner wall of the cylinder body 3.

[0057] The implementation principle of a modulation cylinder in this application embodiment is as follows:

[0058] When installing the scraper 1, simply remove the sealing plate 34, and insert the scraper 1 into the cylinder 3 through the installation port 33. The scraper 1 is fixed to the stirring blade 5 by the clamping plate 22 at the position of the installation port 33. Alternatively, the scraper 1 can also be fixed to the stirring blades 5 at both ends at the inlet 31 and outlet 32. Then, remove the inlet pipe and outlet pipe connected to the inlet 31 and outlet 32 ​​respectively, and the sealing plate 34 can be installed. Start the drive unit 6 to drive the scraper 1 to clean. The structure is simple and the operation is convenient.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cleaning device for a modulation cylinder, characterized in that: The device includes a scraper (1) and an installation assembly (2). The installation assembly (2) is used to detachably connect the scraper (1) and the stirring blade (5). The scraper (1) abuts against the inner wall of the cylinder (3) and forms a material-containing cavity (11) between the scraper (1) and the inner wall of the cylinder (3). The scraper (1) has an inlet (12) communicating with the material-containing cavity (11) on the side facing the rotation direction of the stirring blade (5). When the scraper (1) rotates with the stirring blade (5) to the positions of the inlet (31) and the outlet (32), the two ends of the material-containing cavity (11) along the length direction of the scraper (1) can be connected to the inlet (31) and the outlet (32) respectively. The scraper (1) includes a first scraper (13) and a second scraper (14) connected at an acute angle. The two sides of the first scraper (13) and the second scraper (14) that are opposite to each other abut against the inner wall of the cylinder (3) and form the material receiving cavity (11). The inlet (12) is opened on the first scraper (13). The scraper (1) is configured as a V-shape along the axial direction of the cylinder (3) and the V-shaped opening faces the rotation direction of the stirring blade (5). The scraper (1) includes a first guide part (15) and a second guide part (16) connected to form the V-shape. The feed inlet (12) is opened on the first scraper (13) at the connection between the first guide part (15) and the second guide part (16). When the scraper (1) rotates to the point where the V-shaped opening faces downward, the two ends of the material receiving cavity (11) along the length direction of the scraper (1) correspond to the inlet (31) and the outlet (32) respectively.

2. The modulation cylinder cleaning device according to claim 1, characterized in that: The first scraper (13) is hinged to a cover plate (17) at the feed inlet (12), and the hinge of the cover plate (17) and the first scraper (13) is close to the second scraper (14); when the scraper (1) rotates to the point where the first scraper (13) faces upward, the cover plate (17) rotates downward under the action of gravity to open the feed inlet (12); when the scraper (1) rotates to the point where the first scraper (13) faces downward, the cover plate (17) still rotates downward under the action of gravity to close the feed inlet (12).

3. The modulation cylinder cleaning device according to claim 2, characterized in that: The feed inlet (12) and the first scraper (13) are separated by a gap on the side edge away from the second scraper (14). The inner surface of the feed inlet (12) away from the second scraper (14) is set as a limiting surface (121). The limiting surface (121) is inclined in the direction away from the material cavity (11) and away from the second scraper (14). The side surface of the cover plate (17) facing the limiting surface (121) is set as an inclined surface that is parallel to and abuts against the limiting surface (121).

4. The modulation cylinder cleaning device according to claim 3, characterized in that: The scraper (1) is connected to an elastic element (18) that drives the cover plate (17) to rotate toward the inside of the material cavity (11) to open the feed inlet (12). The elastic force of the elastic element (18) is less than the weight of the cover plate (17). When the scraper (1) rotates past the vertical plane to the point where the first scraper (13) is facing upward, the sum of the elastic force and the weight of the cover plate (17) can drive the cover plate (17) to open the feed inlet (12). When the scraper (1) rotates past the vertical plane to the point where the first scraper (13) is facing downward, the sum of the elastic force and the weight of the cover plate (17) can drive the cover plate (17) to close the feed inlet (12).

5. The modulation cylinder cleaning device according to claim 1, characterized in that: The first scraper (13) and the second scraper (14) are provided with a plurality of check plates (19) along the length direction on the inner wall of the material receiving cavity (11), and a pair of check plates (19) move closer to each other in a direction away from the feed inlet (12).

6. The modulation cylinder cleaning device according to claim 1, characterized in that: The mounting assembly (2) is provided in multiple intervals along the length of the scraper (1). The mounting assembly (2) includes a fixing plate (21) fixed to the scraper (1) on the side away from the material chamber (11) and two clamping plates (22) connected to the fixing plate (21). The stirring blade (5) passes through the two clamping plates (22). The ends of the two clamping plates (22) away from the fixing plate (21) are connected and fixed by bolts (23) and nuts (24).

7. A modulating cylinder cleaning device according to claim 6, characterized in that: The two clamps (22) are installed on the same side of the fixing plate (21) and are connected and fixed by bolts (23) and nuts (24).

8. A modulation cylinder, comprising the modulation cylinder cleaning device according to any one of claims 1-7, characterized in that: The device includes a cylinder (3), a stirring shaft (4) installed inside the cylinder (3), multiple stirring blades (5) arranged in a spiral shape along the length of the stirring shaft (4), and a driving component (6) for driving the stirring shaft (4) to rotate. The side wall of the cylinder (3) is provided with an inlet (31) and an outlet (32) near both ends along the length direction. The middle of the side wall of the cylinder (3) is also provided with an installation port (33) for the scraper (1) to enter the cylinder (3). A sealing plate (34) for covering the installation port (33) is detachably connected to the installation port (33).

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