Short-path distillation scraper composite material, preparation method and preparation device

Abstract

The invention relates to a short-path distillation scraper composite material, a preparation method and a preparation device, and relates to the technical field of scraper processing. A standing preparation platform is prepared, a mixing kettle for bearing a mixture of polyether-ether-ketone resin, special glass fibers, graphene and molybdenum disulfide is arranged on the preparation platform, an injection part for injecting the mixture outwards is arranged at the bottom of the mixing kettle, and a shaping part is arranged under the injection part; the invention can solve the following problems in the prior art: firstly, the injection molding preparation of the scraper is realized through the injection molding machine main body in the prior art, hollowing or bubble cavities are easy to occur in the preparation process of the scraper, the quality of the scraper is poorer, and the quality and the service life of the scraper are further influenced; in addition, when mixed raw materials for preparing the scraper blade are mixed and the special glass fibers and the polyether-ether-ketone resin are mixed and stirred, the special glass fibers are extremely prone to caking, and the quality of the prepared scraper blade is prone to being uneven.

Description

Technical Field

[0001] The invention relates to the technical field of scraper processing, and in particular to a short-range distillation scraper composite material, a preparation method and a preparation device. Background Art

[0002] Short-path distillation scraper is a device used to separate components in a liquid mixture during the distillation process. It usually consists of a cylindrical container with a scraper. After the liquid mixture is heated and evaporated in the container, the scraper will continuously scrape the liquid mixture off the inner wall of the container to increase the contact area and promote the effect of distillation separation. Short-path distillation scrapers are usually used in industrial production where efficient separation is required, such as chemical, pharmaceutical and other industries.

[0003] For example, a Chinese patent with publication number CN217803157U discloses a scraper preparation device, which aims to solve the problem of water accumulation in the working environment after the scraper is cooled. The key points of its technical solution are: it includes an injection molding machine body and a cooling device, the cooling device includes a conveyor belt, a cooling pool, a cleaning component arranged in the cooling pool for removing water stains on the scraper surface, and a mechanical arm arranged on the injection molding machine body for conveying the scraper, and the mechanical arm is provided with a pick-up and placement component for picking up and placing the scraper. A cleaning component is fixedly connected to the cooling device, and the cleaning component is used to clean the finished scraper to remove the water stains remaining on the scraper surface, making the working environment drier and more sanitary.

[0004] However, the above scraper preparation device still has some shortcomings in actual use:

[0005] 1. First, in the prior art, the scraper is prepared by injection molding through the main body of an injection molding machine, and is cooled and shaped with the assistance of a cooling device. However, hollowing or bubble cavities are prone to occur in the process of preparing the scraper, resulting in poor quality of the scraper. When cooling, cooling water is easily left in the hollow inside and is difficult to handle, further affecting the quality and service life of the scraper.

[0006] 2. In addition, in the prior art, when the mixed raw materials used to prepare the scraper are mixed, the special glass fibers inside are easily agglomerated when mixed and stirred with the polyetheretherketone resin, resulting in the special glass fibers being unable to be mixed evenly. When injection molding is performed, the quality of the scraper is easily uneven.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing scraper preparation devices. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a short-path distillation scraper composite material, a preparation method and a preparation device, which adopt the following technical solutions:

[0009] In the first aspect, the present application proposes a short-range distillation scraper composite material, comprising the following raw materials in parts by mass: 80-90 parts of polyetheretherketone resin, 15-20 parts of special glass fiber, 0-5 parts of graphene and 0-5 parts of molybdenum disulfide; the raw materials are mixed to form a distillation scraper composite material.

[0010] In the second aspect, the present application also proposes a method for preparing a short-path distillation scraper, and the method for preparing a short-path distillation scraper is as follows:

[0011] A stationary preparation platform is prepared, on which a mixing kettle for carrying a mixture of polyetheretherketone resin, special glass fiber, graphene and molybdenum disulfide is provided, an injection component for injecting the mixture outward is provided at the bottom of the mixing kettle, and a shaping component is provided directly below the injection component;

[0012] S1: pouring the pre-prepared special glass fiber, graphene and molybdenum disulfide into a mixing kettle for dry mixing to make them evenly mixed;

[0013] S2: After the dry materials are evenly mixed, the polyetheretherketone resin is poured into a high-temperature mixing kettle, so that the polyetheretherketone resin and the mixed dry materials are evenly mixed, and finally the composite raw material required for the distillation scraper is prepared;

[0014] S3: Inject the prepared composite raw material into a mold for preparing a distillation scraper, and shape it after cooling to obtain a preliminary unprocessed distillation scraper:

[0015] S4: After cooling and burr treatment of the formed distillation scraper, the desired distillation scraper is finally manufactured.

[0016] On the third aspect, the present application once again proposes a short-path distillation scraper preparation device, wherein a mixing shaft is rotatably installed in the mixing kettle, a plurality of stirring rods are evenly installed in the middle of the mixing shaft, a dry mixing component for mixing dry materials is provided at the bottom of the mixing shaft, and the dry mixing component comprises a stirring ring installed at the bottom of the mixing shaft through an integrated support column, a plurality of mixing blocks are slidably penetrated on the stirring ring at equal intervals, and a sliding groove is provided on the stirring ring for the mixing blocks to slide.

[0017] Preferably, an irregular cam is provided on the inner wall of the mixing kettle, and a plurality of linkage rods are evenly spaced against the outer wall of the irregular cam. The linkage rods slide through the support columns and extend toward the stirring ring. A triangular linkage block is installed at the end of the linkage rod away from the irregular cam. The inclined surface of the triangular linkage block conflicts with the mixing block, and a linkage spring is provided between the mixing block and the stirring ring.

[0018] Preferably, a plurality of conveying cylinders are installed at equal intervals in the circumferential direction of the mixing kettle, and the conveying cylinders are used to convey different materials respectively. Inclined scrapers for cleaning distribution are arranged at equal intervals on the outer wall of the stirring ring, and a control valve for controlling the opening and closing is provided at the connection between the conveying cylinder and the mixing kettle.

[0019] Preferably, the injection component includes a feed pipe installed at the bottom of the mixing kettle, a feed valve is provided on the feed pipe, the feed pipe is a telescopic structure, a telescopic electric push rod is connected to the top of the feed pipe, and the telescopic electric push rod is installed at the bottom of the mixing kettle.

[0020] Preferably, the shaping component includes a right-angle support bracket, and the vertical end of the right-angle support bracket is symmetrically provided with limit strips along the length direction. The right-angle support bracket is respectively provided with an upper mold and a lower mold, and the lower mold is connected to the right-angle support bracket. The upper mold is slidably arranged on the limit strip on the right-angle support bracket, and a closed cylinder is arranged between the upper mold and the lower mold.

[0021] Preferably, a feed port is integrally provided on the top of the upper mold for the mixture to enter the molding cavity between the upper mold and the lower mold for molding.

[0022] Preferably, an alternating frame is further provided on the preparation platform, and two symmetrically distributed alternating threaded rods are provided in the width direction of the alternating frame, a synchronous belt is installed between the two alternating threaded rods, and a servo motor is installed on one side of the alternating threaded rods.

[0023] The two alternating threaded rods are both threadedly connected with telescopic connecting plates, and the top ends of the two telescopic connecting plates are connected to the right-angle supporting brackets.

[0024] Preferably, an alternating column is installed on one side of the right-angle support bracket, and the two sides of the alternating column are slidably inserted into the alternating plate. The alternating plate has alternating grooves for the alternating column to slide, and the alternating plate is installed on both sides of the alternating frame in the width direction.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The cooperation between the dry mixing component and the stirring rod in the present invention can initially dry mix the special glass fiber, graphene and molybdenum disulfide, ensure that the graphene and molybdenum disulfide are attached to the surface of the special glass fiber, reduce the adhesion of the surface of the special glass fiber, and avoid agglomeration between the special glass fibers.

[0027] 2. The dry mixing component of the present invention can also knock the dry materials in the mixing kettle through the mixing block to break the special glass fibers therein into small-sized special glass fibers of uniform size. When it is prepared into a distillation scraper, it can greatly ensure the consistency of the special glass fibers and make its performance constant, thus avoiding the situation where the performance of different areas on the distillation scraper is inconsistent due to the inconsistent size of the special glass fibers.

[0028] 3. The shaping component of the present invention can realize the alternating operation of two sets of upper molds and lower molds, realize the continuity of the preparation of distillation scrapers, greatly improve the processing efficiency, and ensure the production capacity of distillation scraper preparation.

[0029] Fourth, the defoaming component of the present invention vibrates the material inside the upper mold and the lower mold during the process of changing positions, so as to break the bubbles contained inside, ensure the tightness of the raw materials, and reduce the probability of hollowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0032] Figure 2 It is a schematic diagram of the structure between the mixing kettle and the dry mixing component of the present invention.

[0033] Figure 3 It is a schematic structural diagram of the dry mixing component of the present invention from a first perspective.

[0034] Figure 4 It is a schematic structural diagram of the dry mixing component of the present invention from a second viewing angle.

[0035] Figure 5 The present invention Figure 4 A partial enlarged view of point A in the figure.

[0036] Figure 6 It is a schematic diagram of the structure of the shaping component of the present invention from a first viewing angle.

[0037] Figure 7 It is a schematic diagram of the structure of the shaping component of the present invention from a second viewing angle.

[0038] Figure 8 It is a schematic diagram of the structure between the shaping component and the defoaming component of the present invention.

[0039] Fig. 9 It is a schematic structural diagram of the defoaming component of the present invention.

[0040] Fig.10 It is a flow chart of the method for preparing a short-path distillation scraper of the present invention.

[0041] Explanation of the reference numerals: 1. Preparation platform; 2. Mixing kettle; 3. Injection component; 4. Shaping component; 20. Mixing shaft; 21. Stirring rod; 22. Dry mixing component; 23. Support column; 24. Stirring ring; 25. Mixing block; 240. Sliding slot; 26. Irregular cam; 27. Linkage rod; 28. Triangular linkage block; 29. ​​Linkage spring; 5. Conveying cylinder; 6. Inclined scraper; 30. Feeding pipe; 31. Telescopic electric push rod; 40. Right-angle support Frame; 41. Limiting strip; 42. Upper mold; 43. Lower mold; 44. Closing cylinder; 45. Feed port; 46. Alternating frame; 47. Alternating threaded rod; 48. Synchronous belt; 49. Servo motor; 50. Telescopic connecting plate; 51. Alternating column; 52. Alternating plate; 53. Alternating groove; 7. Defoaming assembly; 70. Defoaming hammer; 71. Defoaming spring; 72. Defoaming wave plate; 73. Reciprocating tension spring; 74. Reciprocating rod; 75. Linked wave plate. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-Figure 10 This application is described in further detail.

[0043] The embodiments of the present application disclose a short-path distillation scraper composite material, a preparation method and a preparation device.

[0044] Firstly, in the prior art, the scraper is prepared by injection molding through an injection molding machine body, and is cooled and shaped with the assistance of a cooling device. However, hollowing or bubble cavities are prone to occur in the process of preparing the scraper, resulting in poor quality of the scraper. When cooling, cooling water is easily left in the hollow inside and is difficult to handle, further affecting the quality and service life of the scraper.

[0045] In addition, in the prior art, when the mixed raw materials used to prepare the scraper are mixed, the special glass fibers inside are easily agglomerated when mixed and stirred with the polyetheretherketone resin, resulting in the special glass fibers being unable to be mixed evenly. When injection molding is performed, the quality of the scraper is easily uneven.

[0046] Therefore, in order to solve the above problems, the present application proposes a short-path distillation scraper composite material, a preparation method and a preparation device to solve the above problems.

[0047] First, the present application proposes a short-distance distillation scraper composite material, which can be used for a long time at 260-280°C, is wear-resistant during use, and does not fall off or drop residues. It includes PEEK resin, special glass fiber, and wear-resistant additives to improve the heat resistance, surface hardness and wear resistance of the material.

[0048] Polyetheretherketone resin itself has high temperature resistance and wear resistance. Adding special glass fiber can improve the material strength, rigidity and wear resistance. Adding graphene can improve the material's wear resistance. Adding molybdenum disulfide can improve the material's surface hardness and wear resistance.

[0049] 80-90 parts of polyetheretherketone resin, 10-20 parts of special glass fiber, 0-5 parts of graphene and 0-5 parts of molybdenum disulfide are mixed to form a distillation scraper composite material.

[0050] Embodiment 1:

[0051] 95 parts of polyetheretherketone resin and 5 parts of graphene; stir them uniformly at a main engine speed of 300 rpm and a temperature of 360 degrees. After stirring for 30 minutes, inject the mixed raw materials into the molding component 4 for molding, and finally make a short-path distillation scraper.

[0052] Embodiment 2:

[0053] 95 parts of polyetheretherketone resin and 5 parts of molybdenum disulfide; stir them uniformly at a main engine speed of 300 rpm and a temperature of 360 degrees. After stirring for 30 minutes, inject the mixed raw materials into the molding component 4 for molding, and finally make a short-path distillation scraper.

[0054] Embodiment three:

[0055] 75 parts of polyetheretherketone resin, 20 parts of special glass fiber and 5 parts of molybdenum disulfide are stirred uniformly at a main engine speed of 300 rpm and a temperature of 360 degrees. After stirring for 30 minutes, the mixed raw materials are injected into the molding component 4 for molding, and finally a short-path distillation scraper is made.

[0056] Embodiment 4:

[0057] 80 parts of polyetheretherketone resin, 15 parts of special glass fiber and 5 parts of graphene are stirred uniformly at a main engine speed of 300 rpm and a temperature of 360 degrees. After stirring for 30 minutes, the mixed raw materials are injected into the molding component 4 for molding, and finally a short-path distillation scraper is made.

[0058] Embodiment five:

[0059] 75 parts of polyetheretherketone resin, 15 parts of special glass fiber, 5 parts of graphene and 5 parts of molybdenum disulfide are stirred uniformly at a main engine speed of 300 rpm and a temperature of 360 degrees. After stirring for 30 minutes, the mixed raw materials are injected into the molding component 4 for molding, and finally a short-path distillation scraper is made.

[0060] After testing, the material properties of the five cases are as follows:

[0061]

[0062]

[0063] In summary, after field trial verification, it can be obtained that the use effects of Example 3 and Example 5 in this application meet the requirements, and it can be obtained that molybdenum disulfide can affect the wear of the product, and adding molybdenum disulfide can effectively reduce its wear consumption. Further, special glass fiber can affect the bending strength of the product, and adding special glass fiber can improve the tensile strength and bending strength of the product.

[0064] See also Fig.10 As shown, in addition, the present application also proposes a method for preparing a short-path distillation scraper, which is specifically shown below:

[0065] S1: Pour the pre-prepared special glass fiber, graphene and molybdenum disulfide into the mixing kettle 2 for dry mixing, so that they can be mixed evenly, ensure that the graphene is attached to the special glass fiber, avoid agglomeration between the special glass fibers, ensure that each bundle of special glass fibers can be separated, and then dry mix them to ensure that the size of the special glass fiber is kept within a certain reasonable range, so that the size is basically consistent.

[0066] S2: After the dry materials are evenly mixed, the polyetheretherketone resin is poured into the high-temperature mixing kettle 2, so that the polyetheretherketone resin and the mixed dry materials are evenly mixed. In this way, because the graphene wraps the special glass fiber, the agglomeration between the special glass fibers can be prevented, thereby ensuring the uniformity of the special glass fiber mixing. After mixing, the composite raw material required for the distillation scraper is finally made.

[0067] S3: The prepared composite raw material is transported to the injection part 3, and is injected into the shaping part 4 directly below through the injection part 3 to shape it, and after it is cooled, a preliminary unprocessed distillation scraper is obtained.

[0068] S4: The formed distillation scraper is subjected to burr treatment to finally obtain the desired distillation scraper.

[0069] See also Figure 1 and Figure 6 As shown, a stationary preparation platform 1 is prepared for carrying the entire device, and a mixing kettle 2 for carrying a mixture of polyetheretherketone resin, special glass fiber, graphene and molybdenum disulfide is provided on the preparation platform 1. A plurality of feed ports 45 are arranged at equal intervals in the circumferential direction of the mixing kettle 2 to load different raw materials respectively, in order to ensure that each raw material can enter the mixing kettle 2 separately to avoid confusion before processing; an injection component 3 for injecting the mixture outward is provided at the bottom of the mixing kettle 2, and a shaping component 4 is provided directly below the injection component 3.

[0070] See also Figure 2 and Figure 3 As shown, in addition, the present application also proposes a short-path distillation scraper preparation device, which includes a mixing shaft 20 rotatably installed in a mixing kettle 2, a plurality of stirring rods 21 are evenly installed in the middle of the mixing shaft 20, and a dry mixing component 22 for mixing dry materials is arranged at the bottom of the mixing shaft 20. The dry mixing component 22 includes a stirring ring 24 installed at the bottom of the mixing shaft 20 through an integrated support column 23, a plurality of mixing blocks 25 are slidably penetrated at equal intervals on the stirring ring 24, and a sliding slot 240 is provided on the stirring ring 24 for the mixing blocks 25 to slide.

[0071] A number of conveying cylinders 5 are installed at equal intervals in the circumferential direction of the mixing kettle 2, and the conveying cylinders 5 are respectively used to convey different materials. The outer wall of the stirring ring 24 is provided with inclined scrapers 6 for cleaning distribution at equal intervals.

[0072] A control valve for controlling opening and closing is provided at the connection between the conveying cylinder 5 and the mixing kettle 2, and the control valve is a known structure.

[0073] It should be noted that a cylinder door for opening and closing is provided on the conveying cylinder 5, and polyetheretherketone resin, special glass fiber, graphene and molybdenum disulfide are respectively placed in the multiple conveying cylinders 5 around the mixing kettle 2. When the corresponding raw materials are needed, the corresponding conveying cylinder 5 is opened to input the corresponding required raw materials into the mixing kettle 2.

[0074] Special glass fiber, graphene and molybdenum disulfide are in a solid structure in the initial state.

[0075] During the specific implementation, the special glass fiber, graphene and molybdenum disulfide are first poured into the mixing kettle 2, and then the mixing shaft 20 in the mixing kettle 2 is started to rotate at a uniform speed, and the special glass fiber, graphene and molybdenum disulfide are stirred by the stirring ring 24 on the mixing shaft 20. At the same time, the mixed dry materials at the bottom of the mixing kettle 2 are shoveled into the air by the cooperation of the inclined scraper 6, so as to achieve the purpose of throwing the mixed dry materials, further greatly improving the efficiency of the mixing of the raw materials, and preventing some raw materials from settling at the bottom of the inner wall of the mixing kettle 2 and being unable to mix.

[0076] At the same time, the stirring ring 24 rotates to stir the mixed dry materials, thereby improving the mixing efficiency between the dry materials and ensuring the uniformity of the mixing.

[0077] See also Figure 3 , Figure 4 and Figure 5As shown, in order to further improve the efficiency of dry material mixing, the present application also proposes an irregular cam 26, which can control the mixing block 25 to knock the dry material inside the mixing kettle 2 during the rotation of the mixing shaft 20, as shown below: an irregular cam 26 is provided on the inner wall of the mixing kettle 2, and a plurality of linkage rods 27 are evenly spaced against the outer wall of the irregular cam 26. The linkage rod 27 slides through the support column 23 and extends toward the stirring ring 24, and a triangular linkage block 28 is installed at one end of the linkage rod 27 away from the irregular cam 26, the inclined surface of the triangular linkage block 28 conflicts with the mixing block 25, and a linkage spring 29 is provided between the mixing block 25 and the stirring ring 24.

[0078] During the specific implementation process, when the mixing shaft 20 rotates, the linkage rod 27 rotates synchronously through the support column 23 and the stirring ring 24, and the irregular cam 26 is arranged on the inner wall of the mixing kettle 2 and cannot rotate, so the linkage rod 27 moves back and forth along the outer wall contour of the irregular cam 26; during this process, the triangular linkage block 28 on the linkage rod 27 reciprocates to squeeze the mixing block 25 in the stirring ring 24, and at this time, the mixing block 25 on the stirring ring 24 reciprocates along the sliding slot 240 of the stirring ring 24, so that the mixing block 25 knocks the dry material in the mixing kettle 2, breaks the special glass fiber therein, and makes it into small-sized special glass fibers of uniform size. When it is prepared into a distillation scraper, it can greatly ensure the consistency of the special glass fiber, so that its performance can be constant, and avoid the inconsistent performance of different areas on the distillation scraper due to the inconsistent size of the special glass fiber.

[0079] Furthermore, after the special glass fiber is crushed, it can be mixed more evenly with the powdered graphene and molybdenum disulfide.

[0080] It should be noted that the polyetheretherketone resin is initially in a solid granular structure and is heated to be molten before mixing.

[0081] After the special glass fiber, graphene and molybdenum disulfide are mixed, the polyetheretherketone resin is heated to make it molten, and then the molten polyetheretherketone resin is added to the mixing kettle 2 for subsequent mixing with the mixed dry material. This can greatly ensure the uniform mixing of the special glass fiber, graphene and molybdenum disulfide and the polyetheretherketone resin. At the same time, the graphene and molybdenum disulfide are wrapped on the surface of the special glass fiber, which can greatly avoid the mutual adsorption between the special glass fibers and reduce the possibility of agglomeration.

[0082] Replay Figure 2As shown, the injection component 3 includes a feed pipe 30 installed at the bottom of the mixing kettle 2, and a feed valve is provided on the feed pipe 30. The feed pipe 30 is a telescopic structure, and a telescopic electric push rod 31 is connected to the top of the feed pipe 30. The telescopic electric push rod 31 is installed at the bottom of the mixing kettle 2. The feed valve can control the falling amount of the mixed raw materials and the timing of feeding.

[0083] The telescopic electric push rod 31 can control the bottom of the feed tube 30 to move, so as to facilitate the connection between the feed tube 30 and the feed port 45 in the shaping component 4 .

[0084] Reference Figure 6 and Figure 7 As shown, specifically, the shaping component 4 includes a right-angle support bracket 40, and the vertical end of the right-angle support bracket 40 is symmetrically provided with a limit strip 41 along the length direction. The right-angle support bracket 40 is respectively provided with an upper mold 42 and a lower mold 43, and the lower mold 43 is connected to the right-angle support bracket 40. The upper mold 42 is slidably arranged on the limit strip 41 on the right-angle support bracket 40, and a closed cylinder is arranged between the upper mold 42 and the lower mold 43.

[0085] A feed port 45 is integrally provided at the top of the upper mold 42 for the mixture to enter the molding cavity between the upper mold 42 and the lower mold 43 for molding.

[0086] In the initial state, the right-angle support bracket 40 on one side is located directly below the injection component 3 .

[0087] During the specific implementation, the injection component 3 moves downward so that the feed tube 30 is inserted into the feed port 45 of the upper mold 42, and then the upper mold 42 is pressed downward so that the lower mold 43 can fit tightly with the upper mold 42. After the upper mold 42 and the lower mold 43 are fitted together, the raw material is injected into them to fill the entire cavity of the upper mold 42 and the lower mold 43, and also fill the entire feed port 45. Then the feed tube 30 moves upward and is separated from the feed port 45 of the upper mold 42.

[0088] After the upper mold 42 and the lower mold 43 have completed the injection molding, they are moved to a designated position, and another set of upper molds 42 and lower molds 43 are moved to the bottom of the injection component 3 for processing, as shown below:

[0089] See also Figure 7 and Figure 8 As shown, an alternating frame 46 is also provided on the preparation platform 1. Two symmetrically distributed alternating threaded rods 47 are provided in the width direction of the alternating frame 46. A synchronous belt 48 is installed between the two alternating threaded rods 47. A servo motor 49 is installed on one side of the alternating threaded rods 47.

[0090] The two alternating threaded rods 47 are both threaded with telescopic connecting plates 50, and the top ends of the two telescopic connecting plates 50 are connected to the right-angle support bracket 40. The telescopic connecting plates 50 are telescopic structures.

[0091] An alternating column 51 is installed on one side of the right angle bracket. The two sides of the alternating column 51 are slidably inserted into the alternating plate 52. The alternating plate 52 is provided with alternating grooves 53 for the alternating column 51 to slide. The alternating plate 52 is installed on both sides of the alternating frame 46 in the width direction.

[0092] It should be noted that the alternating grooves 53 are in an inverted trapezoidal structure.

[0093] During specific implementation, the servo motor 49 is started, and the servo motor 49 controls the two alternating threaded rods 47 to rotate synchronously through the synchronous belt 48. However, the thread directions of the two alternating threaded rods 47 are opposite. Therefore, when the two alternating threaded rods 47 rotate, the two telescopic connecting plates 50 at their upper ends approach each other, and the two telescopic connecting plates 50 control the two right-angle support brackets 40 to approach each other. However, in order to avoid collision between the two, the position replacement between the two right-angle support brackets 40 is completed at the same time. The telescopic connecting plate 50 on one side drives the right-angle support bracket 40 connected to its upper end to move toward the inside of the alternating frame 46 with the cooperation of the alternating column 51 and the alternating plate 52, so that the two right-angle support brackets 40 are in a state of up and down misalignment until the position exchange between the two right-angle support brackets 40 is completed.

[0094] At this time, the new upper mold 42 and the lower mold 43 can be injection molded to form a distillation scraper.

[0095] During the process of replacing the positions of the upper mold 42 and the lower mold 43 that have completed the injection molding, a debubbling component 7 is provided at the upper end thereof. The debubbling component 7 is used to improve the precision of the raw materials in the cavities of the upper mold 42 and the lower mold 43 to avoid excessive bubbles in the middle that would affect their lifespan and quality.

[0096] In addition, the present application also proposes a defoaming component 7, which can improve the efficiency and quality of the distillation scraper preparation.

[0097] See the following for details: Figure 8 and Fig. 9 As shown, the defoaming assembly 7 includes a defoaming hammer 70, a defoaming spring 71, a defoaming wave plate 72 and a reciprocating tension spring 73; the defoaming hammers 70 are arranged at equal intervals in the movable grooves opened inside the upper mold 42 and the lower mold 43, the defoaming spring 71 is arranged on the defoaming hammer 70, the defoaming wave plate 72 is slidably arranged in the movable groove, and the reciprocating tension spring 73 is installed between the defoaming wave plate 72 and the movable groove.

[0098] During specific implementation, the defoaming wave plate 72 moves back and forth. At this time, the defoaming wave plate 72 controls the defoaming hammer 70, so that the defoaming hammer 70 knocks the upper mold 42 and the lower mold 43 to make them vibrate, eliminate the bubbles inside, establish the bubble rate in the distillation scraper, and improve its quality and life.

[0099] A reciprocating rod 74 is connected to one side of the defoaming wave plate 72 , and one end of the reciprocating rod 74 away from the defoaming wave plate 72 movably abuts against the linkage wave plate 75 .

[0100] When the right-angle support bracket 40 moves, the upper mold 42 at its upper end and the reciprocating rod 74 in the lower mold 43 will reciprocate along the linked wave plate 75. At this time, the reciprocating rod 74 drives the defoaming wave plate 72 to reciprocate until the reciprocating knocking of the defoaming hammer 70 is realized, and the raw materials filled in the upper mold 42 and the lower mold 43 are defoamed through the vibration generated by the knocking.

[0101] During operation: the first step is to initially pour the special glass fiber, graphene and molybdenum disulfide into the mixing kettle 2, then start the mixing shaft 20 in the mixing kettle 2 to make it rotate at a constant speed, and stir the special glass fiber, graphene and molybdenum disulfide through the stirring ring 24 on the mixing shaft 20.

[0102] Step 2: When the mixing shaft 20 rotates, the linkage rod 27 rotates synchronously through the support column 23 and the stirring ring 24, and the irregular cam 26 is arranged on the inner wall of the mixing kettle 2 and cannot rotate, so the linkage rod 27 moves back and forth along the outer wall contour of the irregular cam 26; in this process, the triangular linkage block 28 on the linkage rod 27 reciprocates to squeeze the mixing block 25 in the stirring ring 24, and at this time, the mixing block 25 on the stirring ring 24 reciprocates along the sliding slot 240 of the stirring ring 24, so that the mixing block 25 knocks on the dry material in the mixing kettle 2 to crush the special glass fiber therein.

[0103] Step 3: After the special glass fiber, graphene and molybdenum disulfide are mixed, the polyetheretherketone resin is heated to make it molten, and then the molten polyetheretherketone resin is added to the mixing kettle 2 to be subsequently mixed with the mixed dry material, which can greatly ensure the uniform mixing of the special glass fiber, graphene and molybdenum disulfide and the polyetheretherketone resin. At the same time, the graphene and molybdenum disulfide are wrapped on the surface of the special glass fiber, which can greatly avoid the mutual adsorption between the special glass fibers and reduce the possibility of agglomeration.

[0104] Step 4: The injection component 3 moves downward so that the feed tube 30 is inserted into the feed port 45 of the upper mold 42. The upper mold 42 is then pressed downward so that the lower mold 43 can fit tightly with the upper mold 42. After the upper mold 42 and the lower mold 43 fit together, the raw material is injected into the interior to fill the entire cavity of the upper mold 42 and the lower mold 43, and also fill the entire feed port 45. The feed tube 30 then moves upward to separate from the feed port 45 of the upper mold 42.

[0105] Step 5: Start the servo motor 49 to control the position exchange between the two right-angle support brackets 40; at the same time, the defoaming wave plate 72 moves back and forth. At this time, the defoaming wave plate 72 controls the defoaming hammer 70 to make the defoaming hammer 70 knock on the upper mold 42 and the lower mold 43 to make them vibrate, eliminate the bubbles inside, build a good bubble rate in the distillation scraper, and improve its quality and life.

[0106] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite material for a short-distance distillation scraper, characterized in that: The invention comprises the following raw materials in parts by weight: 80-90 parts of polyetheretherketone resin, 15-20 parts of special glass fiber, 0-5 parts of graphene and 0-5 parts of molybdenum disulfide; The mixture is mixed to form a distillation scraper composite material.

2. A method for preparing a short-path distillation scraper, using the composite material for a short-path distillation scraper according to claim 1, characterized in that: The preparation method of short-path distillation scraper is as follows: A stationary preparation platform (1) is prepared, wherein a mixing kettle (2) for carrying a mixture of polyetheretherketone resin, special glass fiber, graphene and molybdenum disulfide is provided on the preparation platform (1), an injection component (3) for injecting the mixture outward is provided at the bottom of the mixing kettle (2), and a shaping component (4) is provided directly below the injection component (3); S1: pouring the pre-prepared special glass fiber, graphene and molybdenum disulfide into a mixing kettle (2) for dry mixing to make them uniform; S2: After the dry materials are mixed evenly, the polyetheretherketone resin is poured into a high-temperature mixing kettle (2) to evenly mix the polyetheretherketone resin with the mixed dry materials, and finally prepare a composite raw material required for the distillation scraper; S3: Inject the prepared composite raw material into a mold for preparing a distillation scraper, and shape it after cooling to obtain a preliminary unprocessed distillation scraper: S4: After cooling and burr treatment of the formed distillation scraper, the desired distillation scraper is finally manufactured.

3. A short-path distillation scraper preparation device, using the short-path distillation scraper preparation method described in claim 2, characterized in that: A mixing shaft (20) is rotatably mounted in a mixing kettle (2), a plurality of stirring rods (21) are evenly spaced in the middle of the mixing shaft (20), a dry mixing component (22) for mixing dry materials is arranged at the bottom of the mixing shaft (20), the dry mixing component (22) comprises a stirring ring (24) mounted on the bottom of the mixing shaft (20) via an integrally arranged support column (23), a plurality of mixing blocks (25) are slidably penetrated on the stirring ring (24) at equal intervals, and a sliding slot (240) is provided on the stirring ring (24) for the mixing blocks (25) to slide.

4. The short-path distillation scraper preparation device according to claim 3, characterized in that: An irregular cam (26) is arranged on the inner wall of the mixing kettle (2), and a plurality of linkage rods (27) are abutted against the outer wall of the irregular cam (26) at equal intervals. The linkage rods (27) slide through the support column (23) and extend in the direction of the stirring ring (24). A triangular linkage block (28) is installed at one end of the linkage rod (27) away from the irregular cam (26). The inclined surface of the triangular linkage block (28) contacts the mixing block (25), and a linkage spring (29) is arranged between the mixing block (25) and the stirring ring (24).

5. The short-path distillation scraper preparation device according to claim 3, characterized in that: A plurality of conveying cylinders (5) are installed at equal intervals in the circumferential direction of the mixing kettle (2), and the conveying cylinders (5) are used to convey different materials respectively. Inclined scrapers (6) for cleaning distribution are arranged at equal intervals on the outer wall of the stirring ring (24). A control valve for controlling opening and closing is provided at the connection between the conveying cylinder (5) and the mixing kettle (2).

6. The short-path distillation scraper preparation device according to claim 3, characterized in that: The injection component (3) comprises a feed pipe (30) installed at the bottom of the mixing kettle (2), a feed valve being provided on the feed pipe (30), the feed pipe (30) being a telescopic structure, a telescopic electric push rod (31) being connected to the top of the feed pipe (30), and the telescopic electric push rod (31) being installed at the bottom of the mixing kettle (2).

7. The short-path distillation scraper preparation device according to claim 3, characterized in that: The shaping component (4) comprises a right-angle support bracket (40), a vertical end of the right-angle support bracket (40) is symmetrically provided with a limit strip (41) along the length direction, an upper mold (42) and a lower mold (43) are respectively provided on the right-angle support bracket (40), the lower mold (43) is connected to the right-angle support bracket (40), the upper mold (42) is slidably arranged on the limit strip (41) on the right-angle support bracket (40), and a closing cylinder (44) is arranged between the upper mold (42) and the lower mold (43).

8. The short-path distillation scraper preparation device according to claim 7, characterized in that: The top of the upper mold (42) is integrally provided with a feed port (45) for the mixture to enter the molding cavity between the upper mold (42) and the lower mold (43) for molding.

9. The short-path distillation scraper preparation device according to claim 3, characterized in that: The preparation platform (1) is also provided with an alternating frame (46), and the alternating frame (46) is provided with two symmetrically distributed alternating threaded rods (47) in the width direction, and a synchronous belt (48) is installed between the two alternating threaded rods (47), and a servo motor (49) is installed on one side of the alternating threaded rods (47); The two alternating threaded rods (47) are both threadedly connected with telescopic connecting plates (50), and the top ends of the two telescopic connecting plates (50) are connected to the right-angle support bracket (40).

10. The short-path distillation scraper preparation device according to claim 7, characterized in that: An alternating column (51) is installed on one side of the right-angle support bracket (40), and the two sides of the alternating column (51) are slidably inserted into the alternating plate (52). The alternating plate (52) is provided with an alternating groove (53) for the alternating column (51) to slide, and the alternating plate (52) is installed on both sides of the alternating frame (46) in the width direction.

Images