A raw material high-temperature mixing device for hot melt adhesive production

Abstract

The present application belongs to the technical field of hot melt adhesive raw material mixing, and particularly relates to a raw material high-temperature mixing device for hot melt adhesive production, which comprises a raw material conveying assembly, an agitating and cleaning assembly, an impeller driving assembly, a bend anti-solidification assembly, an intermediate kettle assembly and an agitating driving assembly. The agitating driving assembly is arranged on the intermediate kettle assembly, the raw material conveying assembly is arranged on the side of the intermediate kettle assembly, the agitating and cleaning assembly is rotatably arranged in the raw material conveying assembly, and the impeller driving assembly is arranged on the raw material conveying assembly. The present application ingeniously utilizes the flow kinetic energy of the heating and heat-preserving medium, converts the fluid kinetic energy into mechanical rotary kinetic energy through the impeller assembly, drives the built-in spiral elastic scraping assembly to synchronously operate, continuously and self-adaptively scrapes the adhered materials on the inner wall of the conveying pipeline, especially the bend, and thereby realizes the efficient and stable conveying and uniform mixing of the hot melt adhesive raw materials.

Description

Technical Field

[0001] This invention belongs to the field of hot melt adhesive raw material mixing technology, specifically referring to a high-temperature mixing device for raw materials used in hot melt adhesive production. Background Technology

[0002] Hot melt adhesive production requires the transport and mixing of raw materials such as resin and tackifier in a molten state at high temperatures. However, the raw materials have high viscosity and are prone to solidification when cooled, especially at pipe bends where fluid deflection and localized heat dissipation are aggravated, which can easily lead to material cooling, adhesion, thickening, or even blockage.

[0003] Currently, most pipeline cleaning methods rely on manual disassembly, high-pressure purging, or the addition of independent motor-driven scrapers. These methods are not only complex in structure and have high energy consumption, but also cause frequent shutdowns for cleaning, which seriously disrupts production continuity.

[0004] Therefore, how to provide a mixing device that can automatically remove deposits from pipe walls, achieve precise anti-condensation and heat preservation, simplify mechanical structure, and ensure continuous production during high-temperature transportation has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a high-temperature mixing device for raw materials used in hot melt adhesive production. The purpose of this invention is to provide such a device. This device cleverly utilizes the kinetic energy of the heating and insulation medium, converting this fluid kinetic energy into mechanical rotational kinetic energy through an impeller assembly. This drives the built-in spiral elastic scraping assembly to operate synchronously, achieving continuous and adaptive scraping of materials adhering to the inner walls of the conveying pipeline, especially at bends. Simultaneously, the segmented bend anti-solidification heating structure effectively compensates for heat loss at bends, fundamentally preventing material cooling and accumulation, as well as pipeline blockage, thus achieving efficient, stable conveying and uniform mixing of hot melt adhesive raw materials.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a high-temperature mixing device for raw materials in the production of hot melt adhesive, including a raw material conveying component, an agitation and cleaning component, an impeller drive component, an elbow anti-solidification component, an intermediate reactor component, and a stirring drive component. The stirring drive component is disposed on the intermediate reactor component, the raw material conveying component is disposed on the side of the intermediate reactor component, the agitation and cleaning component is rotatably disposed in the raw material conveying component, and the impeller drive component is disposed on the raw material conveying component. The elbow anti-solidification component is installed on the raw material conveying component, and the impeller drive component and the elbow anti-solidification component are connected in a through connection.

[0007] Furthermore, the raw material conveying assembly includes a conveying pipe and a conveying connector, the conveying pipe having an elbow, and the conveying connector being located on the intermediate reactor assembly.

[0008] The agitation and cleaning assembly includes a rotating bracket and a spiral elastic rod. The rotating bracket is rotatably mounted in the conveying pipe and has a central shaft. The spiral elastic rod has a cantilever mounting part, which is fixed to one side of the central shaft. The spiral elastic rod also has a scraping blade.

[0009] By rotating the helical elastic rod, materials that have been deposited and adhered in the conveying pipe (especially in the bend) can be scraped off, thus avoiding the impact of pipe blockage on the material conveying effect.

[0010] Because the helical elastic rod is made of elastic material, it can rotate in bends of different curvatures, and it needs to pass through the entire bend.

[0011] Preferably, the material in the conveying pipe will only come into contact with the spiral elastic rod after passing through the rotating support. The scraping blade scrapes off the inner wall of the conveying pipe, which can prevent the material from accumulating in the conveying pipe.

[0012] The spiral elastic rod can only be set downstream of the rotating support (that is, in the direction of material flow). Otherwise, the material will push and squeeze the spiral elastic rod, causing it to accumulate at the rotating support and making it impossible to rotate and scrape.

[0013] Furthermore, the impeller drive assembly includes a drive impeller and an outer sleeve. The drive impeller and the conveying pipe are rotatably connected. A rotary sealing structure is provided between the drive impeller and the conveying pipe. The rotary support is fixedly connected to the drive impeller. The outer sleeve is fixedly connected to the outside of the conveying pipe. The drive impeller is located in the outer sleeve.

[0014] The oil used for heating and heat preservation can drive the impeller to rotate during the flow process, thereby driving the rotating support and the spiral elastic rod to rotate, achieving the technical effect of continuously scraping the material on the inner wall of the bend.

[0015] Preferably, the impeller drive assembly further includes a connecting branch pipe, one end of which is connected to the outer sleeve. The connecting branch pipes on the outer sleeve are located on both sides of the drive impeller, and the liquid can drive the drive impeller to rotate when it flows through the drive impeller.

[0016] Furthermore, the elbow anti-solidification component includes an elbow shell and a straight shell. The elbow shell is fixed to the outside of the elbow head, and the straight shell is fixed to the conveying pipe. The other end of the connecting branch pipe is located on the elbow shell. The elbow shell, the outer sleeve, and the straight shell are interconnected and connected in series.

[0017] The elbow and straight outer shells can be used to heat and keep the material inside the conveying pipe, thereby maintaining its fluidity in the conveying pipe.

[0018] Furthermore, the intermediate vessel assembly includes a cylindrical vessel body and a top cover, the top cover being disposed on the cylindrical vessel body, the top cover having an observation window, and the conveying connector being disposed on the top cover.

[0019] Preferably, the intermediate vessel assembly further includes a mixing liner and a heating device, wherein the mixing liner is disposed in the cylindrical vessel body and the heating device is disposed between the cylindrical vessel body and the mixing liner.

[0020] Furthermore, the stirring drive assembly includes a stirring motor, a mixing spindle, a mixing rod, and a motor mounting base. The motor mounting base is located on the upper cover, the stirring motor is located in the motor mounting base, the mixing spindle is located on the output shaft of the stirring motor, and the mixing rod is located at the bottom end of the mixing spindle.

[0021] The stirring motor drives the mixing shaft and mixing rod to rotate, thereby mixing and stirring the materials in the mixing tank, causing them to react.

[0022] The beneficial effects achieved by the present invention using the above structure are as follows: (1) By rotating the spiral elastic rod, the material that has been deposited and attached in the conveying pipe (especially in the bend) can be scraped off, so as to avoid the material conveying effect being affected by the blockage of the pipe.

[0023] (2) Since the helical elastic rod is made of elastic material, it can rotate in bends with different curvatures. The helical elastic rod needs to pass through the entire bend.

[0024] (3) The spiral elastic rod can only be set downstream of the rotating support (that is, in the direction of material flow). Otherwise, the material will push and squeeze the spiral elastic rod, causing it to accumulate at the rotating support and making it impossible to rotate and scrape.

[0025] (4) The oil used for heating and heat preservation can drive the impeller to rotate during the flow process, thereby driving the rotating support and the spiral elastic rod to rotate, so as to achieve the technical effect of continuously scraping the material on the inner wall of the bend.

[0026] (5) The material inside the conveying pipe can be heated and kept warm through the elbow shell and the straight shell, thereby maintaining its fluidity in the conveying pipe.

[0027] (6) The mixing motor can drive the mixing spindle and mixing rod to rotate, thereby mixing and stirring the materials in the mixing tank and causing them to react. Attached Figure Description

[0028] Figure 1 This is a perspective view of a high-temperature mixing device for raw materials in the production of hot melt adhesives, as proposed in this invention. Figure 2This is a front view of a high-temperature mixing device for raw materials in the production of hot melt adhesives, as proposed in this invention. Figure 3 This is a left view of a high-temperature mixing device for raw materials in the production of hot melt adhesive, as proposed in this invention. Figure 4 This is a top view of a high-temperature mixing device for raw materials in the production of hot melt adhesive, as proposed in this invention. Figure 5 for Figure 3 A cross-sectional view along the cutting line AA; Figure 6 This is an exploded structural diagram of a high-temperature mixing device for raw materials used in the production of hot melt adhesives, as proposed in this invention. Figure 7 for Figure 5 A magnified view of a section at point I; Figure 8 for Figure 6 A magnified view of section II in the middle.

[0029] The components include: 1. Raw material conveying assembly; 2. Agitation and cleaning assembly; 3. Impeller drive assembly; 4. Elbow anti-solidification assembly; 5. Intermediate vessel assembly; 6. Stirring drive assembly; 11. Conveying pipe; 12. Conveying connector; 21. Rotating support; 22. Spiral elastic rod; 31. Drive impeller; 32. Outer sleeve; 33. Connecting branch pipe; 41. Elbow shell; 42. Straight shell; 51. Cylindrical vessel body; 52. Top cover; 53. Mixing inner liner; 54. Heating device; 61. Stirring motor; 62. Mixing main shaft; 63. Mixing rod; 64. Motor mounting base; 111. Elbow head; 211. Central shaft; 221. Cantilever mounting part; 222. Scraper blade; 521. Observation window.

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] like Figures 1-8 As shown, the present invention proposes a high-temperature mixing device for raw materials in the production of hot melt adhesive, including a raw material conveying assembly 1, an agitation and cleaning assembly 2, an impeller drive assembly 3, an elbow anti-solidification assembly 4, an intermediate reactor assembly 5, and a stirring drive assembly 6. The stirring drive assembly 6 is disposed on the intermediate reactor assembly 5, the raw material conveying assembly 1 is disposed on the side of the intermediate reactor assembly 5, the agitation and cleaning assembly 2 is rotatably disposed in the raw material conveying assembly 1, and the impeller drive assembly 3 is disposed on the raw material conveying assembly 1. The elbow anti-solidification component 4 is installed on the raw material conveying component 1, and the impeller drive component 3 and the elbow anti-solidification component 4 are connected in a through manner.

[0034] The raw material conveying assembly 1 includes a conveying pipe 11 and a conveying connector 12. The conveying pipe 11 is provided with an elbow 111, and the conveying connector 12 is provided on the intermediate reactor assembly 5.

[0035] The agitation and cleaning assembly 2 includes a rotating bracket 21 and a spiral elastic rod 22. The rotating bracket 21 is rotatably disposed in the conveying pipe 11. A central shaft 211 is provided on the rotating bracket 21. A cantilever mounting part 221 is provided on the spiral elastic rod 22. The cantilever mounting part 221 is fixed to one side of the central shaft 211. A scraping blade 222 is also provided on the spiral elastic rod 22.

[0036] By rotating the spiral elastic rod 22, the material that has been deposited and attached in the conveying pipe 11 (especially in the bend 111) can be scraped off, so as to avoid the material conveying effect being affected by pipe blockage.

[0037] Since the helical elastic rod 22 is made of elastic material, it can rotate in bends 111 with different curvatures, and the helical elastic rod 22 needs to pass through the entire bend 111.

[0038] The material in the conveying pipe 11 will only come into contact with the spiral elastic rod 22 after passing through the rotating support 21. The inner wall of the conveying pipe 11 is scraped by the scraping blade 222, which can prevent the material from accumulating in the conveying pipe 11.

[0039] The spiral elastic rod 22 can only be set downstream of the rotating support 21 (that is, in the direction of material flow). Otherwise, the material will push and squeeze the spiral elastic rod 22, causing it to accumulate at the rotating support 21 and making it impossible to rotate and scrape.

[0040] The impeller drive assembly 3 includes a drive impeller 31 and an outer sleeve 32. The drive impeller 31 is rotatably connected to the conveying pipe 11. A rotary sealing structure is provided between the drive impeller 31 and the conveying pipe 11. A rotary support 21 is fixedly connected to the drive impeller 31. The outer sleeve 32 is fixedly connected to the outside of the conveying pipe 11. The drive impeller 31 is located in the outer sleeve 32.

[0041] The oil used for heating and heat preservation can drive the impeller 31 to rotate during the flow process, thereby driving the rotating support 21 and the spiral elastic rod 22 to rotate, achieving the technical effect of continuously scraping the material on the inner wall of the bend 111.

[0042] The impeller drive assembly 3 also includes a connecting branch pipe 33, one end of which is connected to the outer sleeve 32. The connecting branch pipe 33 located on the outer sleeve 32 is located on both sides of the drive impeller 31. When the liquid flows through the drive impeller 31, it can drive the drive impeller 31 to rotate.

[0043] The elbow anti-solidification component 4 includes an elbow housing 41 and a straight housing 42. The elbow housing 41 is fixed to the outside of the elbow head 111, and the straight housing 42 is fixed to the conveying pipe 11. The other end of the connecting branch pipe 33 is located on the elbow housing 41. The elbow housing 41, the outer sleeve 32 and the straight housing 42 are connected and connected in series.

[0044] The elbow housing 41 and the straight housing 42 can heat and keep the material inside the conveying pipe 11 warm, thereby maintaining its fluidity in the conveying pipe 11.

[0045] The intermediate vessel assembly 5 includes a cylindrical vessel body 51 and an upper cover 52. The upper cover 52 is located on the cylindrical vessel body 51 and has an observation window 521. The conveying connector 12 is located on the upper cover 52.

[0046] The intermediate vessel assembly 5 also includes a mixing inner liner 53 and a heating device 54. The mixing inner liner 53 is disposed in the cylindrical vessel body 51, and the heating device 54 is disposed between the cylindrical vessel body 51 and the mixing inner liner 53.

[0047] The stirring drive assembly 6 includes a stirring motor 61, a mixing spindle 62, a mixing rod 63, and a motor mounting base 64. The motor mounting base 64 is located on the upper cover 52, the stirring motor 61 is located in the motor mounting base 64, the mixing spindle 62 is located on the output shaft of the stirring motor 61, and the mixing rod 63 is located at the bottom end of the mixing spindle 62.

[0048] The stirring motor 61 can drive the mixing shaft 62 and the mixing rod 63 to rotate, thereby mixing and stirring the materials in the mixing liner 53, causing them to react.

[0049] In practical use, the external pump is started to transport the raw materials into the mixing liner 53 through the conveying pipe 11 and the conveying connector 12. The heating device 54 is turned on to heat the mixing liner 53 and the materials therein. At the same time, the stirring motor 61 is started, and the mixing rod 63 is rotated through the mixing main shaft 62, thereby stirring and mixing the raw materials in the mixing liner 53, so that they are fused and react.

[0050] During the conveying process of the raw material in the conveying pipe 11, in order to avoid the problem of reduced fluidity of the raw material due to temperature drop, it is necessary to heat and keep the material inside the conveying pipe 11 from the outside through the elbow anti-solidification component 4. The elbow shell 41 is located at the elbow head 111, and the straight shell 42 is located in the straight section of the conveying pipe 11. The flow direction of the heat-insulating oil in the interlayer is opposite to the flow direction of the raw material, so that the temperature of the raw material in the conveying pipe 11 can be maintained in a relatively stable range.

[0051] The heat-insulating oil is also driven by an external pump and first enters the elbow housing 41 closest to the conveying joint 12. Since the raw material is most likely to adhere to and accumulate at the elbow 111, the possibility of the raw material adhering to and accumulating on the inner wall of the elbow 111 can be reduced by the targeted setting of the elbow housing 41. After passing through the elbow shell 41, the heat-insulating oil enters the outer sleeve 32 through the connecting branch pipe 33, and then enters the next elbow shell 41 through the connecting branch pipe 33. When the oil flows in the straight shell 42, it will pass through the drive impeller 31. While passing through the drive impeller 31, the oil will drive the drive impeller 31 to rotate, and at the same time drive the rotating bracket 21 to rotate, and then drive the spiral elastic rod 22 to rotate through the cantilever mounting part 221. When the spiral elastic rod 22 rotates, the scraping blade 222 slides closely against the inside of the bent head 111, thereby scraping off the material that has been attached, thus avoiding the problem of the material accumulation thickness continuously increasing.

[0052] The spiral elastic rod 22 is located downstream of the rotating support 21. Therefore, the flow of material will not push the spiral elastic rod 22 to compress and fold, but will instead comb the spiral elastic rod 22 (so that the spiral elastic rod 22 naturally extends along the material flow direction), which is more conducive to the rotational movement of the spiral elastic rod 22.

[0053] After passing through the outside of the elbow 111, the insulating oil enters the straight outer shell 42 through the connecting branch pipe 33.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-temperature mixing device for raw materials in the production of hot melt adhesive, comprising a raw material conveying assembly (1), an intermediate reactor assembly (5), and a stirring drive assembly (6), wherein the stirring drive assembly (6) is disposed on the intermediate reactor assembly (5), and the raw material conveying assembly (1) is disposed on the side of the intermediate reactor assembly (5), characterized in that: It also includes an agitation and cleaning assembly (2), an impeller drive assembly (3), and an elbow anti-solidification assembly (4). The agitation and cleaning assembly (2) is rotatably disposed in the raw material conveying assembly (1), and the impeller drive assembly (3) is disposed on the raw material conveying assembly (1). The elbow anti-solidification component (4) is installed on the raw material conveying component (1), and the impeller drive component (3) and the elbow anti-solidification component (4) are connected in a through manner. The agitation and cleaning assembly (2) includes a rotating bracket (21) and a spiral elastic rod (22). The rotating bracket (21) is rotatably disposed in the conveying pipe (11). The rotating bracket (21) is provided with a central shaft (211). The spiral elastic rod (22) is provided with a cantilever mounting part (221). The cantilever mounting part (221) is fixed to one side of the central shaft (211). The spiral elastic rod (22) is also provided with a scraping blade (222). The material in the conveying pipe (11) will only come into contact with the spiral elastic rod (22) after passing through the rotating support (21). The inner wall of the conveying pipe (11) is scraped by the scraping blade (222), which can prevent the material from accumulating in the conveying pipe (11). The raw material conveying assembly (1) includes a conveying pipe (11) and a conveying connector (12). The conveying pipe (11) is provided with an elbow (111), and the conveying connector (12) is provided on the intermediate reactor assembly (5). The impeller drive assembly (3) includes a drive impeller (31) and an outer sleeve (32). The drive impeller (31) and the conveying pipe (11) are rotatably connected. A rotary sealing structure is provided between the drive impeller (31) and the conveying pipe (11). The rotary support (21) is fixed in the drive impeller (31). The outer sleeve (32) is fixed to the outside of the conveying pipe (11). The drive impeller (31) is located in the outer sleeve (32). The impeller drive assembly (3) also includes a connecting branch pipe (33), one end of which is connected to the outer sleeve (32). The connecting branch pipe (33) located on the outer sleeve (32) is located on both sides of the drive impeller (31). When the liquid flows through the drive impeller (31), it can drive the drive impeller (31) to rotate. The elbow anti-solidification component (4) includes an elbow shell (41) and a straight shell (42). The elbow shell (41) is fixed to the outside of the elbow head (111), and the straight shell (42) is fixed to the conveying pipe (11). The other end of the connecting branch pipe (33) is located on the elbow shell (41). The elbow shell (41), the outer sleeve (32) and the straight shell (42) are connected and connected in series.

2. The high-temperature mixing equipment for raw materials in hot melt adhesive production according to claim 1, characterized in that: The intermediate vessel assembly (5) includes a cylindrical vessel body (51) and a top cover (52). The top cover (52) is located on the cylindrical vessel body (51), and an observation window (521) is provided on the top cover (52). The conveying connector (12) is located on the top cover (52).

3. The high-temperature mixing equipment for raw materials in hot melt adhesive production according to claim 2, characterized in that: The intermediate vessel assembly (5) also includes a mixing inner liner (53) and a heating device (54). The mixing inner liner (53) is disposed in the cylindrical vessel body (51), and the heating device (54) is disposed between the cylindrical vessel body (51) and the mixing inner liner (53).

4. The high-temperature mixing equipment for raw materials in hot melt adhesive production according to claim 3, characterized in that: The stirring drive assembly (6) includes a stirring motor (61), a mixing spindle (62), a mixing rod (63), and a motor mounting base (64). The motor mounting base (64) is located on the upper cover (52), the stirring motor (61) is located in the motor mounting base (64), the mixing spindle (62) is located on the output shaft of the stirring motor (61), and the mixing rod (63) is located at the bottom end of the mixing spindle (62).

Images