A regenerated rubber refining mechanism

Abstract

The present invention provides a regenerated rubber refining mechanism, belonging to the technical field of refining mills; it includes a rubber scraping component and an open mill for refining the regenerated rubber, the open mill includes a first roller body, a second roller body and a third roller body arranged staggered from top to bottom, the first roller body, the second roller body and the third roller body refining the regenerated rubber by rotating, and also includes a first scraper for scraping off the residual rubber on the first roller body. The present invention, by providing a rubber scraping component, can push the residual rubber scraped from the first roller body by the first scraper and adhering to the first scraper to the middle of the first scraper, thereby preventing the old rubber from accidentally falling into the rubber material during the refining process, ensuring the quality of the regenerated rubber after refining, and reducing the waste in the rubber material manufacturing process. At the same time, the residual rubber scraped from the middle of the first scraper by the rubber scraping component can be promptly transported to the rubber material on the second roller body, further improving the utilization rate of the residual rubber and reducing the waste of the rubber material.

Description

Technical Field

[0001] The invention relates to the technical field of open mixing mills, in particular to an open mixing mechanism for recycled rubber. Background Art

[0002] Recycled rubber is a rubber that has a certain degree of plasticity and can be reused, which is processed from the vulcanized scraps in the production of rubber products. It is referred to as recycled rubber. According to the different waste rubber used, recycled rubber is divided into outer tires, inner tubes, rubber shoes, etc. Recycled rubber can partially replace raw rubber in rubber products, which saves raw rubber and carbon black and is also beneficial to improving processing performance and certain properties of rubber products.

[0003] In order to reduce the labor required for operating recycled rubber, a Chinese patent with authorization announcement number CN201427366Y discloses a four-roller mixing mill for recycled rubber. The four-roller mechanism and scraper arranged in layers enable a single mixing mill to knead the recycled rubber multiple times. The scraper is used to separate the kneaded rubber from the roller and guide it to the next kneading area. Although such an arrangement can improve the refining efficiency of the recycled rubber, during long-term use, rubber will adhere to the scraper. After long-term adhesion to form old rubber, it is difficult to remove. Because the scraper is generally located between two rollers, the operating space is limited, which further increases the difficulty of removing the old rubber on the scraper. If the old rubber on the scraper is not removed in time, the old rubber may accidentally fall into the rubber during the refining process, which may easily affect the quality of the batch of rubber and cause waste of rubber. Therefore, the present application provides a recycled rubber refining mechanism to meet the demand. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a regenerated rubber refining mechanism to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A reclaimed rubber refining mechanism comprises a rubber scraping component and an open mill for kneading the reclaimed rubber, wherein the open mill comprises a first roller body, a second roller body and a third roller body which are staggered from top to bottom on support plates on both sides of a machine body, wherein the first roller body, the second roller body and the third roller body knead the reclaimed rubber by rotating, and further comprises a first scraper for scraping off residual rubber on the first roller body, wherein the first scraper is located at the bottom of the first roller body and the blade head is in contact with the first roller body, and the first scraper is mounted on the support plates on both sides of the machine body.

[0007] Preferably, the first scraper is provided with a sliding groove that runs through the first scraper along the length direction of the first scraper, and two symmetrically arranged tool holders are slidably connected to the sliding groove, and a second scraper that fits the bottom of the first scraper is installed in the tool holder; the rubber scraping component is located at the bottom of the first scraper, and the rubber scraping component contacts with the recycled rubber on the second roller body and rotates under the force applied thereby, and the length of the sliding groove corresponds to the length of the first roller body, and the rotating rubber scraping component can drive the two second scrapers to approach or move away from each other along the sliding groove, and the two second scrapers push the residual glue on the first scraper to the middle of the first scraper through movement, and the rotating rubber scraping component can scrape the residual glue gathered in the middle of the first scraper to the rubber position on the second roller body.

[0008] Preferably, the rubber scraping component includes a rotating roller rotatably connected to supporting plates on both sides of the machine body, two ends of the rotating roller are longer than two ends of the first roller body, a plurality of first scrapers and driving plates are evenly arranged in a circle and connected to the rotating roller, and the plurality of first scrapers and driving plates are arranged at intervals, the first scraper can scrape with the first scraper by rotation, and the first scraper and the driving plate can both contact with the rubber on the second roller body, and two first guide plates and a second guide plate are symmetrically installed on the rotating roller, the first guide plate and the second guide plate are symmetrical spiral plates, the first guide plate is flush with the rotating roller at a position close to the end of the rotating roller, and a gap is provided between the end of the first guide plate close to the first scraper and the first scraper for the knife holder to pass through, and the knife holder contacts with the second guide plate after passing through the gap, and the end of the second guide plate away from the first scraper is shorter than the first guide plate.

[0009] Preferably, a second scraper longer than the first scraper is mounted on the rotating roller, and both ends of the second scraper exceed ends of the two first guide plates that are close to each other.

[0010] Preferably, the bottom of the first scraper is provided with an arc groove coaxial with the roller, the top of the second scraper is adapted to the arc groove, the tool holder is provided with a first guide groove penetrating the tool holder, the first guide groove is arc-shaped and coaxial with the roller, the second scraper is provided with a first guide block that can slide along the first guide groove, the second scraper is slidably connected to the tool holder through the first guide block, a shifting block is provided on the first guide block, one side of the tool holder is rotatably connected with a shifting rod, the shifting rod can shift the shifting block under the action of an external force, and the bottom of the shifting rod is lower than the bottom of the tool holder;

[0011] Preferably, the side of the second scraper away from the first scraper head protrudes outside the blade holder, and the first guide plate can interfere with the side of the second scraper away from the first scraper head during rotation. The second guide plate can interfere with the lever during rotation without touching the blade holder or the second scraper, and the lever does not contact the first scraper or the driving plate.

[0012] Preferably, the end of the second scraper close to the blade head of the first scraper is provided with an inward inclination angle toward the first scraper plate, and the end of the first guide plate close to the first scraper plate is also provided with an arc segment coaxial with the roller, and a through groove running through the arc segment is provided on the side of the arc segment close to the roller, and the blade holder is squeezed by the through groove to drive the blade head of the second scraper to scrape both sides of the first scraper plate.

[0013] Preferably, a rounded corner is provided at the position where the arc segment of the first guide plate is provided.

[0014] Preferably, a column parallel to the axis of the roller is installed at one end of the driving plate away from the roller.

[0015] Preferably, the second roller body can be laterally adjusted in position on the support plates at both sides of the machine body.

[0016] Preferably, the rubber scraping component and the first scraper can be laterally adjusted in position on the support plates on both sides of the machine body.

[0017] Preferably, the first scraper plate and the driving plate have a lower hardness than the first scraper.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above scheme, by setting up a rubber scraping component, the residual rubber scraped from the first roller body by the first scraper and adhered to the first scraper can be pushed to the middle part of the first scraper, thereby preventing the old rubber from accidentally falling into the rubber material during the refining process, ensuring the quality of the recycled rubber after kneading, and reducing the waste in the rubber material manufacturing process. At the same time, the residual rubber scraped from the middle part of the first scraper by the rubber scraping component can be promptly transported to the rubber material on the second roller body, further improving the utilization rate of the residual rubber and reducing the waste of rubber.

[0020] By setting a rubber scraping component, when the second roller body wrapped with rubber material rotates, it will apply force to the first scraper or driving plate to drive the rotating roller to rotate. When the rotating roller drives the two ends of the first guide paddle to gradually rotate to the top of the rotating roller, the first guide paddle contacts the second scraper and, under the guidance of its own spiral structure, the two second scrapers approach each other. The second scraper approaching each other pushes the residual rubber at the two ends of the first scraper to the middle of the first scraper, and the rotating first scraper scrapes the residual rubber pushed to the middle of the first scraper into the rubber material on the second roller body. As the rotating roller continues to rotate, the second scraper disengages from the first guide paddle and contacts the second guide paddle, and moves in the opposite direction under the guidance of the reverse spiral structure of the second guide paddle for the next scraping. The whole process does not require additional power drive, and the kneading effect of the rubber material on the second roller body can also be improved by squeezing the first scraper or driving plate and the rubber material on the second roller body.

[0021] The residual glue scraped from the first roller by the first scraper can be accumulated in the arc groove, and the residual glue accumulated in the arc groove can be pushed to the middle of the first scraper through the movement of the second scraper. Furthermore, when the second scraper moves in the direction away from the first scraper, the second guide plate contacts the lever and drives the lever to rotate. The rotating lever contacts the lever block and drives the first guide block to slide toward the end away from the blade head of the first scraper. The advantage of such a setting is that it can effectively prevent the residual glue scraped by the first scraper from being pushed to the two ends of the first scraper during the resetting process of the second scraper, thereby further ensuring the cleaning effect of the first scraper and the utilization rate of the rubber.

[0022] The first guide plate abuts against the second scraper so that the second scraper will not slide along the arc edge of the arc groove during movement along the length direction of the first scraper, thereby ensuring the stability of the second scraper in pushing the residual glue stuck to the inner wall of the arc groove.

[0023] When the second scraper moves to between the first scraper and the first guide paddle under the resistance of the first scraper, the first scraper will resist the blade head of the second scraper with an inward inclination angle, and the second scraper is subjected to force through the blade holder to extrude the arc segment. When the first scraper is out of contact with the second scraper, the second scraper is reset under the elastic force of the arc segment, which effectively reduces the probability of residual glue sticking to the blade head of the second scraper and improves the cleaning effect of the residual glue on the second scraper and the first scraper. This arrangement can also ensure that after the second scraper loses the resistance of the first guide paddle, the first scraper can ensure the posture stability of the second scraper through the resistance with the blade head of the second scraper, avoid the second scraper from sliding along the first guide groove, and ensure the stability of the glue removal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0025] Figure 1 It is a three-dimensional structural diagram of the regenerated rubber refining mechanism;

[0026] Figure 2 It is a side view of the first roller body, the second roller body, the third roller body and the scraping component;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the scraper component;

[0028] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the roller from the first perspective;

[0030] Figure 6It is a schematic diagram of the three-dimensional structure of the roller from the second viewing angle;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure after the first scraper and the second scraper are assembled;

[0032] Figure 8 for Figure 7 Enlarged structural diagram at B in the middle.

[0033] [Reference Signs]

[0034] 1. Open mixing mill; 2. Glue scraping component; 3. First roller body; 4. Second roller body; 5. Third roller body; 6. First scraper; 7. Roller; 8. First scraper; 9. Driving plate; 10. Slide; 11. Tool holder; 12. Second scraper; 13. First guide plate; 14. Second guide plate; 15. Through groove; 16. Column; 17. Inclination angle; 18. Arc groove; 19. First guide groove; 20. First guide block; 21. Block; 22. Lever; 23. Second scraper.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0036] The following is a detailed description of a reclaimed rubber refining mechanism provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0037] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0038] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0039] like Figure 1-Figure 3 As shown, an embodiment of the present invention provides a regenerated rubber refining mechanism, including a rubber scraping component 2 and an open mill 1 for kneading the regenerated rubber, the open mill 1 including a first roller body 3, a second roller body 4 and a third roller body 5 which are staggered from top to bottom on the support plates on both sides of the machine body, the first roller body 3, the second roller body 4 and the third roller body 5 are driven to rotate by a motor, which is the prior art, the first roller body 3, the second roller body 4 and the third roller body 5 knead the regenerated rubber by rotation, and also includes a first scraper 6 for scraping off the residual rubber on the first roller body 3, the first scraper 6 is located at the bottom of the first roller body 3 and the blade head is in contact with the first roller body 3, the first scraper 6 is installed on the support plates on both sides of the machine body; the first scraper 6 is provided with a plurality of rollers along the length of the first scraper 6 A slide groove 10 runs through the first scraper 6 in the degree direction, and two symmetrically arranged tool holders 11 are slidably connected to the slide groove 10, and a second scraper 12 that fits the bottom of the first scraper 6 is installed in the tool holder 11; the rubber scraping component 2 is located at the bottom of the first scraper 6, and the rubber scraping component 2 contacts with the recycled rubber on the second roller body 4 and rotates under the force applied thereto. The length of the slide groove 10 corresponds to the length of the first roller body 3. The rotating rubber scraping component 2 can drive the two second scrapers 12 to approach or move away from each other along the slide groove 10. The two second scrapers 12 push the residual glue on the first scraper 6 to the middle part of the first scraper 6 through movement. The rotating rubber scraping component 2 can scrape the residual glue gathered in the middle part of the first scraper 6 to the rubber position on the second roller body 4.

[0040] By setting up the rubber scraping component 2, when the rubber scraping component 2 rotates under the action of the force of the rubber material attached to the second roller body 4, the residual rubber scraped from the first roller body 3 by the first scraper 6 and adhered to the first scraper 6 can be pushed to the middle part of the first scraper 6, so as to avoid the generation of old rubber on the first scraper 6, ensure the rubber scraping effect of the first scraper 6, avoid the old rubber from accidentally falling into the rubber material in the refining process, ensure the quality of the recycled rubber after kneading, and reduce the waste in the rubber material manufacturing process. At the same time, because there may not be rubber material at both ends of the rubber roller during the refining process, there is always rubber material in the middle. Therefore, the residual rubber scraped from the middle part of the first scraper 6 by the rubber scraping component 2 can be promptly transported to the rubber material on the second roller body 4, further improving the utilization rate of the residual rubber and reducing the waste of rubber material.

[0041] like Figure 1-Figure 8As shown, in this embodiment, the scraper component 2 includes a roller 7 rotatably connected to the support plates on both sides of the body, the two ends of the roller 7 are longer than the two ends of the first roller body 3, and the roller 7 is evenly arranged in a circle and connected with a plurality of first scrapers 8 and a driving plate 9, and the plurality of scrapers 8 and the driving plate 9 are arranged at intervals, and the first scraper 8 can scrape with the first scraper 6 by rotation, and the length of the driving plate 9 along the radial direction of the roller 7 is less than the length of the first scraper 8 along the radial direction of the roller 7. This arrangement can prevent the driving plate 9 from scraping the first scraper 6 by rotation, reduce the wear of the first scraper 6 and the driving plate 9, and the first scraper 8 and The driving plates 9 can all contact with the rubber on the second roller body 4. Two first guide plates 13 and second guide plates 14 are symmetrically installed on the rotating roller 7. The first guide plates 13 and the second guide plates 14 are symmetrical spiral plates. The first guide plate 13 is flush with the rotating roller 7 at a position close to the end of the rotating roller 7. There is a gap between the end of the first guide plate 13 close to the first scraper 8 and the first scraper 8 for the tool holder 11 to pass through. After passing through the gap, the tool holder 11 contacts the second guide plate 14. The end of the second guide plate 14 away from the first scraper 8 is shorter than the first guide plate 13.

[0042] By setting the rubber scraping component 2, when the second roller body 4 wrapped with rubber rotates, force will be applied to the first scraper 8 or the driving plate 9 to drive the roller 7 to rotate. When the roller 7 drives the two ends of the first guide plate 13 to gradually rotate to the top of the roller 7, the first guide plate 13 contacts the second scraper 12, and under the guidance of its own spiral structure, the two second scrapers 12 approach each other. The second scrapers 12 approaching each other push the residual rubber at the two ends of the first scraper 6 to the middle of the first scraper 6, and the rotating first scraper 8 scrapes the residual rubber pushed to the middle of the first scraper 6 into the rubber on the second roller body 4. As the roller 7 continues to rotate, the second scraper 12 disengages from the first guide plate 13 and contacts the second guide plate 14, and moves in the opposite direction under the guidance of the reverse spiral structure of the second guide plate 14 for the next scraping. The whole process does not require additional power drive, and the kneading effect of the rubber on the second roller body 4 can also be improved by squeezing the first scraper 8 or the driving plate 9 with the rubber on the second roller body 4.

[0043] like Figure 5 As shown, in this embodiment, a second scraper 23 longer than the first scraper 8 is installed on the rotating roller 7, and both ends of the second scraper 23 exceed the ends of the two first guide plates 13 that are close to each other. The advantage of this arrangement is that the two second scrapers 12 can be pushed to the middle of the first scraper 6 and the residual glue that cannot be scraped off by the first scraper 8 can be scraped away through the scraping of the second scraper 23 and the first scraper 6. The structure is simple and effective, which ensures the cleanliness of the scraping of the residual glue on the first scraper 6 and improves the utilization efficiency of the residual glue.

[0044] like Figure 7 and Figure 8As shown, in this embodiment, the bottom of the first scraper 6 is provided with an arc groove 18 coaxial with the roller 7, the top of the second scraper 12 is adapted to the arc groove 18, the tool holder 11 is provided with a first guide groove 19 penetrating the tool holder 11, the first guide groove 19 is arc-shaped and coaxial with the roller 7, the second scraper 12 is provided with a first guide block 20 that can slide along the first guide groove 19, the second scraper 12 is slidably connected to the tool holder 11 through the first guide block 20, the first guide block 20 is provided with a shift block 21, and the tool holder One side of the blade 11 is rotatably connected to a lever 22, and the lever 22 can move the lever block 21 under the action of external force, and the bottom of the lever 22 is lower than the bottom of the tool holder 11; the side of the second scraper 12 away from the blade head of the first scraper 6 protrudes outside the tool holder 11, and the first guide plate 13 can contact the side of the second scraper 12 away from the blade head of the first scraper 6 during rotation, and the second guide plate 14 can contact the lever 22 during rotation without touching the tool holder 11 or the second scraper 12, and the lever 22 does not contact the first scraper plate 8 or the driving plate 9.

[0045] The residual glue scraped from the first roller body 3 by the first scraper 6 can be accumulated in the arc groove 18, and the residual glue accumulated in the arc groove 18 can be pushed to the middle part of the first scraper 6 through the movement of the second scraper 12. Furthermore, when the second scraper 12 moves in the direction away from the first scraper plate 8, the second guide plate 14 contacts the lever 22 and drives the lever 22 to rotate. The rotating lever 22 contacts the lever block 21 and drives the first guide block 20 to slide toward the end away from the blade head of the first scraper 6. The advantage of such a setting is that it can effectively prevent the residual glue scraped by the first scraper 6 from being pushed to the two ends of the first scraper 6 during the resetting process of the second scraper 12, thereby further ensuring the cleaning effect of the first scraper 6 and the utilization rate of the rubber.

[0046] The first guide plate 13 abuts against the second scraper 12 so that the second scraper 12 will not slide along the arc edge of the arc groove 18 when moving along the length direction of the first scraper 6, thereby ensuring the stability of the second scraper 12 pushing the residual glue stuck to the inner wall of the arc groove 18.

[0047] like Figure 8 As shown, in the present embodiment, the end of the second scraper 12 close to the blade head of the first scraper 6 is provided with an inclination angle 17 toward the first scraper plate 8, and the end of the first guide plate 13 close to the first scraper plate 8 is also provided with an arc segment coaxial with the rotating roller 7, and a through groove 15 penetrating the arc segment is provided on the side of the arc segment close to the rotating roller 7. The tool holder 11 is squeezed by the through groove 15 to drive the blade head of the second scraper 12 to scrape the two sides of the first scraper plate 8.

[0048] When the second scraper 12 moves to between the first scraper 8 and the first guide paddle plate 13 under the interference of the first guide paddle plate 13, the first scraper 8 will conflict with the blade head of the second scraper 12 with an inclination angle 17, and the second scraper 12 is subjected to force to extrude the arc segment through the tool holder 11. When the first scraper 8 and the second scraper 12 are out of contact, the second scraper 12 is reset under the elastic force of the arc segment, which effectively reduces the probability of residual glue sticking to the blade head of the second scraper 12 and improves the cleaning effect of the residual glue on the second scraper 12 and the first scraper 6. This arrangement can also ensure that after the second scraper 12 loses the interference of the first guide paddle plate 13, the first scraper 8 ensures the posture stability of the second scraper 12 by conflicting with the blade head of the second scraper 12, prevents the second scraper 12 from sliding along the first guide groove 19, and ensures the stability of the glue removal operation.

[0049] like Figure 4 As shown, in the present embodiment, a rounded corner is provided at the position where the arc segment of the first guide plate 13 is provided. The advantage of such a setting is that the second scraper 12 driven by the first guide plate 13 can move more smoothly along the first guide plate 13, thereby reducing the probability of the second scraper 12 jumping when pushing the residual glue on the first scraper 6 to the middle of the first scraper 6, thereby ensuring the stability of the residual glue pushing.

[0050] like Figure 4 As shown, in this embodiment, a column 16 parallel to the axis of the roller 7 is installed at one end of the driving plate 9 away from the roller 7. The advantage of such an arrangement is that the arrangement of the arc surface of the column 16 can effectively prevent the driving plate 9 from contacting and separating with the rubber on the second roller body 4 and shoveling away the rubber on the second roller body 4 due to the edges of the driving plate 9, thereby avoiding waste of rubber.

[0051] In this embodiment, the position of the second roller 4 can be adjusted laterally along the support plates on both sides of the machine body. Specifically, a hydraulic cylinder can be arranged on the support plates on both sides of the machine body, and the second roller 4 can be rotatably connected to the movable end of the hydraulic cylinder. A groove corresponding to the second roller 4 is arranged on the support plate, and the second roller 4 moves along the groove. This is a prior art. The advantage of such a setting is that the spacing between the second roller 4 and the first roller 3 and the third roller 5 can be adjusted, which is convenient for kneading rubber materials with different thickness requirements and improving the working range of the device.

[0052] In this embodiment, the rubber scraper component 2 and the first scraper 6 can be adjusted in position laterally along the support plates on both sides of the machine body. Specifically, hydraulic cylinders or push rod motors are arranged on the support plates on both sides of the machine body, and the rubber scraper component 2 and the first scraper 6 are installed at the movable end of the telescopic mechanism, wherein the roller 7 is rotatably connected to the movable end of the telescopic mechanism, and the first scraper 6 is fixedly connected to the movable end of the telescopic mechanism. A groove body corresponding to the roller 7 and the first scraper 6 is arranged on the support plate, and the roller 7 and the first scraper 6 move along the corresponding groove body. The position of the rubber scraper component 2 and the first scraper 6 is adjusted by adjusting the telescopic length of the telescopic mechanism. This is the prior art. The advantage of such a setting is that the accuracy of the working position of the rubber scraper component 2 and the first scraper 6 can be improved by adjusting the position of the rubber scraper component 2 and the first scraper 6, thereby improving its working stability.

[0053] In this embodiment, the hardness of the first scraper 8 and the driving plate 9 is lower than that of the first scraper 6. The advantage of this arrangement is that it reduces the wear and tear of the first scraper 6 caused by long-term scraping between the first scraper 8 or the driving plate 9 and the first scraper 6, thereby ensuring the service life of the first scraper 6.

[0054] The technical solution provided by the present invention is to set a rubber scraping component 2. When the rubber scraping component 2 rotates under the action of the force of the rubber material attached to the second roller body 4, the residual rubber scraped from the first roller body 3 by the first scraper 6 and adhered to the first scraper 6 can be pushed to the middle part of the first scraper 6, so as to avoid the generation of old rubber on the first scraper 6, ensure the rubber scraping effect of the first scraper 6, avoid the old rubber from accidentally falling into the rubber material in the refining process, ensure the quality of the recycled rubber after kneading, and reduce the waste in the rubber material manufacturing process. At the same time, because there may not be rubber material at both ends of the rubber roller during the refining process, there is always rubber material in the middle. Therefore, the residual rubber scraped from the middle part of the first scraper 6 by the rubber scraping component 2 can be promptly transported to the rubber material on the second roller body 4, further improving the utilization rate of the residual rubber and reducing the waste of rubber material.

[0055] By setting the rubber scraping component 2, when the second roller body 4 wrapped with rubber rotates, force will be applied to the first scraper 8 or the driving plate 9 to drive the roller 7 to rotate. When the roller 7 drives the two ends of the first guide plate 13 to gradually rotate to the top of the roller 7, the first guide plate 13 contacts the second scraper 12, and under the guidance of its own spiral structure, the two second scrapers 12 approach each other. The second scrapers 12 approaching each other push the residual rubber at the two ends of the first scraper 6 to the middle of the first scraper 6, and the rotating first scraper 8 scrapes the residual rubber pushed to the middle of the first scraper 6 into the rubber on the second roller body 4. As the roller 7 continues to rotate, the second scraper 12 disengages from the first guide plate 13 and contacts the second guide plate 14, and moves in the opposite direction under the guidance of the reverse spiral structure of the second guide plate 14 for the next scraping. The whole process does not require additional power drive, and the kneading effect of the rubber on the second roller body 4 can also be improved by squeezing the first scraper 8 or the driving plate 9 with the rubber on the second roller body 4.

[0056] The residual glue scraped from the first roller body 3 by the first scraper 6 can be accumulated in the arc groove 18, and the residual glue accumulated in the arc groove 18 can be pushed to the middle part of the first scraper 6 through the movement of the second scraper 12. Furthermore, when the second scraper 12 moves in the direction away from the first scraper plate 8, the second guide plate 14 contacts the lever 22 and drives the lever 22 to rotate. The rotating lever 22 contacts the lever block 21 and drives the first guide block 20 to slide toward the end away from the blade head of the first scraper 6. The advantage of such a setting is that it can effectively prevent the residual glue scraped by the first scraper 6 from being pushed to the two ends of the first scraper 6 during the resetting process of the second scraper 12, thereby further ensuring the cleaning effect of the first scraper 6 and the utilization rate of the rubber.

[0057] The first guide plate 13 abuts against the second scraper 12 so that the second scraper 12 will not slide along the arc edge of the arc groove 18 when moving along the length direction of the first scraper 6, thereby ensuring the stability of the second scraper 12 pushing the residual glue stuck to the inner wall of the arc groove 18.

[0058] When the second scraper 12 moves to between the first scraper 8 and the first guide paddle plate 13 under the interference of the first guide paddle plate 13, the first scraper 8 will conflict with the blade head of the second scraper 12 with an inclination angle 17, and the second scraper 12 is subjected to force to extrude the arc segment through the tool holder 11. When the first scraper 8 and the second scraper 12 are out of contact, the second scraper 12 is reset under the elastic force of the arc segment, which effectively reduces the probability of residual glue sticking to the blade head of the second scraper 12 and improves the cleaning effect of the residual glue on the second scraper 12 and the first scraper 6. This arrangement can also ensure that after the second scraper 12 loses the interference of the first guide paddle plate 13, the first scraper 8 ensures the posture stability of the second scraper 12 by conflicting with the blade head of the second scraper 12, prevents the second scraper 12 from sliding along the first guide groove 19, and ensures the stability of the glue removal operation.

[0059] The present invention encompasses any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A regenerated rubber refining mechanism, characterized in that: include: A rubber scraping component (2) and an open mill (1) for kneading regenerated rubber, the open mill (1) comprising a first roller (3), a second roller (4) and a third roller (5) arranged in a staggered manner from top to bottom on support plates on both sides of a machine body, the first roller (3), the second roller (4) and the third roller (5) kneading the regenerated rubber by rotating, and further comprising a first scraper (6) for scraping off residual rubber on the first roller (3), the first scraper (6) being located at the bottom of the first roller (3) and the blade head being in contact with the first roller (3), and the first scraper (6) being mounted on support plates on both sides of the machine body; The first scraper (6) is provided with a slide groove (10) which penetrates the first scraper (6) along the length direction of the first scraper (6); the slide groove (10) is slidably connected to two symmetrically arranged tool holders (11); a second scraper (12) is installed in the tool holder (11) and is in contact with the bottom of the first scraper (6); The rubber scraping component (2) is located at the bottom of the first scraper (6). The rubber scraping component (2) contacts with the regenerated rubber on the second roller (4) and rotates under the force applied thereto. The length of the slide groove (10) corresponds to the length of the first roller (3). The rotating rubber scraping component (2) can drive the two second scrapers (12) to move closer to or farther from each other along the slide groove (10). The two second scrapers (12) push the residual rubber on the first scraper (6) to the middle of the first scraper (6) through movement. The rotating rubber scraping component (2) can scrape the residual rubber gathered in the middle of the first scraper (6) to the rubber position on the second roller (4). The rubber scraping component (2) comprises a roller (7) rotatably connected to support plates on both sides of the machine body, the two ends of the roller (7) are longer than the two ends of the first roller body (3), a plurality of first scrapers (8) and drive plates (9) are evenly arranged and connected to the roller (7) in a circumferential manner, the plurality of first scrapers (8) and drive plates (9) are arranged at intervals, the first scrapers (8) can scrape with the first scraper (6) by rotating, the first scrapers (8) and drive plates (9) can both contact the rubber material on the second roller body (4), and two first guide plates (13) are symmetrically mounted on the roller (7). ) and a second guide plate (14), the first guide plate (13) and the second guide plate (14) being symmetrical spiral plates, the first guide plate (13) being flush with the roller (7) at a position close to the end of the roller (7), a gap being provided between an end of the first guide plate (13) close to the first scraper (8) and the first scraper (8) for a knife holder (11) to pass through, the knife holder (11) contacting the second guide plate (14) after passing through the gap, and an end of the second guide plate (14) away from the first scraper (8) being shorter than the first guide plate (13).

2. The regenerated rubber refining mechanism according to claim 1, characterized in that: The rotating roller (7) is provided with a second scraper (23) which is longer than the first scraper (8), and both ends of the second scraper (23) extend beyond the ends of the two first guide plates (13) which are close to each other.

3. The regenerated rubber refining mechanism according to claim 1, characterized in that: The bottom of the first scraper (6) is provided with an arc groove (18) coaxial with the roller (7), the top of the second scraper (12) is adapted to the arc groove (18), the tool holder (11) is provided with a first guide groove (19) penetrating the tool holder (11), the first guide groove (19) is arc-shaped and coaxial with the roller (7), the second scraper (12) is provided with a first guide block (20) which can slide along the first guide groove (19), the second scraper (12) is slidably connected to the tool holder (11) via the first guide block (20), the first guide block (20) is provided with a shifting block (21), one side of the tool holder (11) is rotatably connected with a shifting rod (22), the shifting rod (22) can shift the shifting block (21) under the action of an external force, and the bottom of the shifting rod (22) is lower than the bottom of the tool holder (11); The side of the second scraper (12) away from the blade head of the first scraper (6) protrudes outside the blade holder (11); during the rotation of the first guide plate (13), it can contact the side of the second scraper (12) away from the blade head of the first scraper (6); during the rotation of the second guide plate (14), it can contact the lever (22) without touching the blade holder (11) or the second scraper (12); and the lever (22) does not contact the first scraper (8) or the driving plate (9).

4. The regenerated rubber refining mechanism according to claim 1, characterized in that: An end of the second scraper (12) close to the blade head of the first scraper (6) is provided with an inclination angle (17) facing the first scraper plate (8); an end of the first guide plate (13) close to the first scraper plate (8) is also provided with an arc segment coaxial with the roller (7); a through groove (15) penetrating the arc segment is provided on a side of the arc segment close to the roller (7); the blade holder (11) is squeezed by the through groove (15) to drive the blade head of the second scraper (12) to scrape against both sides of the first scraper plate (8).

5. The regenerated rubber refining mechanism according to claim 1, characterized in that: A rounded corner is provided at the position where the arc segment of the first guide plate (13) is provided.

6. The regenerated rubber refining mechanism according to claim 1, characterized in that: A column (16) parallel to the axis of the roller (7) is mounted on one end of the driving plate (9) away from the roller (7).

7. The regenerated rubber refining mechanism according to claim 1, characterized in that: The position of the second roller (4) can be adjusted laterally on the support plates on both sides of the machine body.

8. The regenerated rubber refining mechanism according to claim 1, characterized in that: The rubber scraping component (2) and the first scraper (6) can be laterally adjusted in position on the support plates on both sides of the machine body.

9. The regenerated rubber refining mechanism according to claim 1, characterized in that: The hardness of the first scraper (8) and the drive plate (9) is lower than that of the first scraper (6).

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