Static mixer for profiled bar production line and use method of static mixer

Abstract

The static mixer comprises an inner cylinder, the outer side of the inner cylinder is sleeved with an outer cylinder, the two ends of the inner wall of the outer cylinder are each provided with a first spigot groove, the inner wall of the outer cylinder is provided with a first arc-shaped face, and a buffer space is formed between the inner cylinder and the outer cylinder. Through the arrangement of the first seam allowance groove, the second seam allowance groove, the sealing piece, the second arc-shaped surface and the third arc-shaped surface, after entering the inner barrel, a profiled bar raw material in a molten state can be effectively guided and continuously migrated from right to left along a preset flowing track, at the moment, sealing between the flange and the inner barrel and sealing between the flange and the outer barrel are changed into radial sealing, and the sealing effect is improved. The situation of leakage of the profiled bar raw materials is avoided; furthermore, by arranging a channel, a first pipeline, a channel, a transverse hole and a second pipeline, the static mixer has two different temperature adjusting modes, the temperature adjusting speed is high, and the stability is high.

Description

Technical Field

[0001] The invention specifically relates to a static mixer for a profile production line and a use method thereof. Background Art

[0002] Static mixer is a kind of high-efficiency mixing equipment without moving parts. Its basic working mechanism is to change the flow state of fluid in the tube by using the mixing unit fixed in the tube. These mixing units are usually composed of components of various shapes and structures, such as strips, spirals, cones, etc. They are installed in a sheath tube and fixed to achieve good dispersion and sufficient mixing between different fluids. When producing various special-shaped materials such as PVC, ABS, PP, PE, PC, etc. on the special-shaped material production line, the above-mentioned static mixer is needed.

[0003] However, the existing static mixer adopts end face sealing, which has low sealing performance, and the profiled material is easy to leak. In addition, when the existing static mixer is in use, there is only one temperature control medium channel, and the temperature adjustment speed is slow, which affects the use.

[0004] Therefore, it is necessary to invent a static mixer for a profile production line and a method for using the same to solve the above problems. Summary of the invention

[0005] 1. Purpose of the invention The purpose of the present invention is to provide a static mixer for a special-shaped material production line and a method of using the same. By providing a first stop groove, a second stop groove, a seal, a second curved surface, and a third curved surface, the special-shaped material raw material in a molten state can be effectively guided after entering the inner cylinder, and continuously migrate from right to left along a predetermined flow trajectory. At this time, the seal between the flange and the inner cylinder and the outer cylinder becomes a radial seal, thereby avoiding leakage of the special-shaped material raw material. Furthermore, by providing a groove, a first pipe, a channel, a transverse hole, and a second pipe, the static mixer has two different temperature adjustment methods, with a fast temperature adjustment speed and high stability, so as to solve the above-mentioned deficiencies in the technology.

[0006] (II) Technical solution In order to achieve the above object, the present invention provides the following technical solution: a static mixer for a profile production line, comprising an inner cylinder, an outer cylinder is sleeved on the outer side of the inner cylinder, first stop grooves are provided at both ends of the inner wall of the outer cylinder, a first arc surface is provided on the inner wall of the outer cylinder, and a buffer space is formed between the inner cylinder and the outer cylinder; Sealing components are provided at both ends of the cache space, and the sealing components include flanges located at both ends of the outer tube, the side of the flange close to the inner tube is connected to an inner ring plate inserted into the inner tube, and the side of the flange close to the outer tube is connected to an outer ring plate inserted into the cache space, and a sealing member is embedded on the outer side of the outer ring plate; The sealing assembly also includes a second stop groove located at the outer ends of the two outer ring plates and matched with the first stop groove, the inner walls of the two outer ring plate ends are both provided with a second arc surface, and the inner walls of the two inner ring plate ports are both provided with a third arc surface; The first arc surface is gradually arranged away from the inner cylinder from both ends to the middle, the opening of the second arc surface is in contact with the end of the first arc surface, and is used to guide the raw material to smoothly transition at the connection between the outer ring plate and the outer cylinder, and the opening of the third arc surface is in contact with the inner wall of the inner cylinder, and is used to guide the raw material to smoothly transition at the connection between the inner ring plate and the inner cylinder; Temperature control components are also provided at both ends of the inner cylinder and on the outer surface of the outer cylinder, for adjusting the temperature inside the static mixer in two ways at the same time.

[0007] Preferably, the two flanges are connected to the outer cylinder by bolts, and the tops of the two flanges are equipped with lifting rings; Among them, the first stop groove, the second stop groove, the cache space, the first arc surface, the second arc surface, and the third arc surface are all set to be ring-shaped.

[0008] Preferably, the outer diameter of the inner ring plate matches the inner diameter of the inner tube, the inner diameter of the outer ring plate matches the outer diameter of the inner tube, and the outer diameter of the outer ring plate matches the inner diameter of the first stop groove; The sealing member is configured as an O-ring, and a receiving groove for receiving the sealing member is provided on the outer sides of the two outer ring plates.

[0009] Preferably, the inner wall and the outer wall at both ends of the inner cylinder are protruded outward along the length direction of the inner cylinder to form a protrusion, and an annular channel is formed between the protrusion located on the outer side and the protrusion located on the inner side, and a sealing plate is provided at the outer opening of the channel; Wherein, a plurality of transverse holes connected with the channel are transversely distributed on the inner wall between the protruding portion located on the outer side and the protruding portion located on the inner side of the inner tube; A vertebral body is transversely arranged inside the inner cylinder, both ends of the vertebral body are chamfered, and a ring-shaped clamping plate for clamping the vertebral body is connected to the middle inner wall of the inner cylinder. The interior of the inner cylinder is divided into two left and right accommodating spaces by the vertebral body and the clamping plate.

[0010] Preferably, the temperature control assembly comprises a spiral groove opened on the outer surface of the outer cylinder, a shell sleeved on the outer side of the outer cylinder, and two first pipes installed on the front and rear sides of the shell; The temperature control component also includes two second pipes, which are both L-shaped as a whole, and the short sides of the two second pipes respectively pass through the flanges and sealing plates at both ends of the inner tube in sequence and are connected to the channel.

[0011] Preferably, the two first pipes are respectively connected to the starting point and the end point of the channel, and the long sides of the two second pipes are respectively arranged above and below the inner tube.

[0012] Preferably, a plurality of vertical holes are vertically distributed on the inner wall of the inner cylinder between the outer protrusion and the inner protrusion, the vertical holes are staggered with the transverse holes, and the buffer space is connected with the interior of the inner cylinder through the vertical holes.

[0013] Preferably, a temperature sensor is installed on one end of the inner tube, and the temperature sensor is arranged in an L shape, and the short side sequentially passes through the flange and the sealing plate and extends to the inner wall of the inner tube; The two flanges are both provided with interfaces on one side away from the inner tube, and the interfaces are both provided with end covers.

[0014] Preferably, a heater is installed on one of the end covers close to the temperature sensor, and a mold body is installed on the outer side of the heater.

[0015] A method for using a static mixer for a profile production line comprises the following steps: S1. When in use, the right end cover is connected to the external extruder, and the profiled material melted by the extruder first enters the static mixer through the right interface, and then flows into the inner ring plate, and continues to flow to the left along the inner wall of the inner ring plate until it reaches the accommodation space on the right side of the inner cylinder; S2. The profiled material in the right accommodating space will continuously gather toward the inner wall of the inner cylinder under the limitation of the cone, and finally enter the vertical hole on the right side of the inner cylinder under the pressure of the extruder. Under the transportation of the vertical hole, it will diffuse toward the outside of the inner cylinder in all directions and flow into the cache space; S3. With the continuous influx of the profiled raw materials and the pressure of the extruder, the profiled raw materials in the right buffer space will continue to gather to the left along the outer wall of the inner cylinder and the inner wall of the outer cylinder, and then enter the accommodating space on the left side of the inner cylinder through the vertical hole on the left side of the inner cylinder, and continue to flow to the left; S4. When the profiled material enters the static mixer, the staff injects coolant into the first pipe on the left side of the shell. The coolant flows to the right along the channel and then flows out through the second pipe on the right side of the shell, thus performing a temperature control on the static mixer. S5. During the primary temperature control process, the staff can also inject coolant into the second pipe located on the left side of the inner tube. The coolant will enter the channel and flow rightward along the inside of the transverse hole until it flows out through the second pipe located on the right side of the inner tube, thereby performing secondary temperature control on the static mixer. S6. The profiled material flowing to the left will first reach the inside of the heater and be heated again. After maintaining its own temperature, it will continue to flow to the left into the mold body and finally be extruded, thereby completing the mixed production of the profiled material.

[0016] Compared with the prior art, the above technical solution of the present invention has the following beneficial effects: 1. The present invention is provided with a first stop groove, a second stop groove, a sealing member, a second arc surface, and a third arc surface, so that the profiled material in a molten state can be effectively guided after entering the inner cylinder, that is, under the guidance of the second arc surface on the left side, the profiled material has a tendency to flow to the left, and under the guidance of the second arc surface on the right side, the profiled material has a tendency to turn downward, so that the profiled material can continuously migrate from right to left along a predetermined flow trajectory. At this time, the sealing of the flange with the inner cylinder and the outer cylinder becomes a radial sealing, avoiding the leakage of the profiled material, thereby greatly improving the sealing performance of the static mixer; 2. The present invention is provided with a groove and a first pipeline, so that a coolant can be injected into the outer wall of the outer cylinder to achieve a primary temperature control of the static mixer. At the same time, by providing a channel, a transverse hole, and a second pipeline, a coolant can also be injected into the inner wall of the inner cylinder to achieve a secondary temperature control of the static mixer. The two different temperature control methods enable the temperature inside the static mixer to be cooled quickly, with fast adjustment speed, multiple methods, high stability, and ensuring that the temperature inside the static mixer is appropriate, which is beneficial to the use of the static mixer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection structure between the vertebral body and the inner cylinder of the present invention; Figure 3 An exploded view of the flange and inner cylinder of the present invention; Figure 4 This is a schematic diagram of the structure of the sealing assembly of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure of part A; Figure 6 It is the distribution diagram of the vertical holes and the horizontal holes of the present invention; Figure 7 is a distribution diagram of the channels of the present invention; Figure 8 It is a cross-sectional view of the present invention.

[0019] Description of reference numerals: 1 inner cylinder, 2 outer cylinder, 3 first stop groove, 4 first arc surface, 5 buffer space; 6 sealing assembly, 61 flange, 62 inner ring plate, 63 outer ring plate, 64 sealing member, 65 second stop groove, 66 second arc surface, 67 third arc surface; 71 channel, 72 housing, 73 first pipe, 74 second pipe; 8 lifting ring, 9 receiving groove, 10 protrusion, 11 channel, 12 sealing plate, 13 transverse hole, 14 vertebral body, 15 clamping plate, 16 vertical hole, 17 temperature sensor, 18 interface, 19 end cover, 20 heater, 21 mold body. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] The present invention provides Figure 1-8 A static mixer for a profile production line shown in the figure comprises an inner cylinder 1, an outer cylinder 2 is sleeved on the outer side of the inner cylinder 1, first stop grooves 3 are provided at both ends of the inner wall of the outer cylinder 2, a first arc surface 4 is provided on the inner wall of the outer cylinder 2, and a buffer space 5 is formed between the inner cylinder 1 and the outer cylinder 2; The two ends of the cache space 5 are provided with sealing components 6, and the sealing components 6 include flanges 61 located at the two ends of the outer tube 2, and the side of the flange 61 close to the inner tube 1 is connected to an inner ring plate 62 inserted into the inner tube 1, and the side of the flange 61 close to the outer tube 2 is connected to an outer ring plate 63 inserted into the cache space 5, and a sealing member 64 is embedded on the outer side of the outer ring plate 63; The sealing assembly 6 also includes a second stop groove 65 located at the outer ends of the two outer ring plates 63 and adapted to the first stop groove 3. The inner walls of the ends of the two outer ring plates 63 are both provided with a second arc surface 66, and the inner walls of the ports of the two inner ring plates 62 are both provided with a third arc surface 67; The first arc surface 4 is gradually arranged away from the inner cylinder 1 from both ends to the middle, the opening of the second arc surface 66 is in contact with the end of the first arc surface 4, and is used to guide the material to smoothly transition at the connection between the outer ring plate 63 and the outer cylinder 2, and the opening of the third arc surface 67 is in contact with the inner wall of the inner cylinder 1, and is used to guide the material to smoothly transition at the connection between the inner ring plate 62 and the inner cylinder 1; Temperature control components are also provided at both ends of the inner tube 1 and on the outer surface of the outer tube 2, for adjusting the temperature inside the static mixer in two ways at the same time; The temperature control assembly includes a spiral groove 71 formed on the outer surface of the outer tube 2, a shell 72 sleeved on the outer side of the outer tube 2, and two first pipes 73 installed on the front and rear sides of the shell 72; The temperature control assembly further includes two second pipes 74 , which are both L-shaped as a whole, and the short sides of the two second pipes 74 respectively penetrate the flanges 61 and the sealing plate 12 at both ends of the inner tube 1 in sequence, and are connected to the channel 11 .

[0022] In one embodiment, the two flanges 61 are connected to the outer cylinder 2 by bolts, and a lifting ring 8 is installed on the top of the two flanges 61, so that the static mixer can be lifted for easy use, wherein the first stop groove 3, the second stop groove 65, the buffer space 5, the first arc surface 4, the second arc surface 66, and the third arc surface 67 are all set to be ring-shaped.

[0023] In one embodiment, the outer diameter of the inner ring plate 62 is matched with the inner diameter of the inner tube 1, the inner diameter of the outer ring plate 63 is matched with the outer diameter of the inner tube 1, the outer diameter of the outer ring plate 63 is matched with the inner diameter of the first stop groove 3, and the seal 64 is configured as an O-ring for easy installation and use, and the O-ring can fill the receiving groove 9 when squeezed, and the sealing performance is relatively high. The outer sides of the two outer ring plates 63 are provided with receiving grooves 9 for accommodating the seal 64.

[0024] In one embodiment, the inner wall and the outer wall at both ends of the inner cylinder 1 are formed with protrusions 10 protruding outward along the length direction of the inner cylinder 1, and an annular channel 11 is formed between the protrusion 10 located on the outer side and the protrusion 10 located on the inner side, and a sealing plate 12 is provided at the outer opening of the channel 11, so that a coolant, such as cooling oil or water, flows into the transverse hole 13, and then the static mixer is cooled from the inside of the inner cylinder 1, wherein a plurality of transverse holes 13 connected to the channel 11 are distributed transversely on the inner wall between the protrusion 10 located on the outer side and the protrusion 10 located on the inner side, and the inner cylinder 1 is transversely provided with a plurality of transverse holes 13 connected to the channel 11. A cone 14 is provided, and both ends of the cone 14 are chamfered to facilitate the flow of the profiled raw materials in a molten state, and a ring-shaped clamping plate 15 for clamping the cone 14 is connected to the middle inner wall of the inner cylinder 1. The interior of the inner cylinder 1 is divided into two left and right accommodating spaces by the cone 14 and the clamping plate 15. A plurality of vertical holes 16 are vertically distributed on the inner wall between the outer protrusion 10 and the inner protrusion 10 of the inner cylinder 1. The vertical holes 16 are staggered with the transverse holes 13. The buffer space 5 is connected to the interior of the inner cylinder 1 through the vertical holes 16, so that the profiled raw materials can flow from the right to the left to achieve efficient mixing.

[0025] In one embodiment, the two first pipes 73 are respectively connected to the starting point and the end point of the groove 71, and the long sides of the two second pipes 74 are respectively arranged above and below the inner tube 1, so that the coolant can be evenly distributed around the outer circle of the outer tube 2, so as to cool the outer tube 2 and realize the reduction of the overall temperature of the static mixer.

[0026] In one embodiment, a temperature sensor 17 is installed on one end of the inner cylinder 1. The temperature sensor 17 is set to be L-shaped, and the short side passes through the flange 61 and the sealing plate 12 in sequence and extends to the inner wall of the inner cylinder 1, so that the user can monitor in real time whether the temperature inside the static mixer is appropriate. The two flanges 61 are installed with interfaces 18 on the side away from the inner cylinder 1, and the interfaces 18 are installed with end covers 19 to facilitate the connection of the static mixer with other equipment. Among them, a heater 20 is installed on one of the end covers 19 close to the temperature sensor 17, and a mold body 21 is installed on the outside of the heater 20, so that the special-shaped material can be further processed.

[0027] A method for using a static mixer for a profile production line comprises the following steps: S1. When in use, the right end cover 19 is connected to the external extruder, and the profiled material melted by the extruder first enters the static mixer through the right interface 18, and then flows into the inner ring plate 62, and continues to flow to the left along the inner wall of the inner ring plate 62 until it reaches the accommodating space on the right side of the inner cylinder 1; S2. The profiled material in the right accommodating space will continuously gather toward the inner wall of the inner tube 1 under the limit of the cone 14, and finally enter the vertical hole 16 located on the right side of the inner tube 1 under the action of the extruder pressure. Under the conveyance of the vertical hole 16, it will diffuse toward the outside of the inner tube 1 in all directions and flow into the buffer space 5; S3, with the continuous influx of the profiled raw materials and the pressure of the extruder, the profiled raw materials in the right buffer space 5 will continue to gather to the left along the outer wall of the inner tube 1 and the inner wall of the outer tube 2, and then enter the accommodating space on the left side of the inner tube 1 through the vertical hole 16 located on the left side of the inner tube 1, and continue to flow to the left; S4. When the profiled material enters the static mixer, the staff injects coolant into the first pipe 73 located on the left side of the shell 72. The coolant flows to the right along the channel 71 and then flows out through the second pipe 74 located on the right side of the shell 72, thereby performing a temperature control on the static mixer. S5. During the primary temperature control process, the staff can also inject coolant into the second pipe 74 located on the left side of the inner tube 1. The coolant will enter the channel 11 and flow rightward along the inside of the transverse hole 13 until it flows out through the second pipe 74 located on the right side of the inner tube 1, thereby performing secondary temperature control on the static mixer. S6. The profiled material flowing to the left will first reach the interior of the heater 20 to be heated again, and after maintaining its own temperature, it will continue to flow to the left into the interior of the mold body 21 and finally be extruded, thereby completing the mixed production of the profiled material.

[0028] Implementation method: Figure 1 For example, when the present invention is in use, the end cover 19 located on the right side of the inner cylinder 1 is connected to the external extruder, the first pipe 73 located on the left side of the shell 72 and the second pipe 74 located on the left side of the inner cylinder 1 are liquid inlet pipes for injecting cooling liquid, such as water or cooling oil, and the first pipe 73 located on the right side of the shell 72 and the second pipe 74 located on the right side of the inner cylinder 1 are liquid outlet pipes for cooling liquid to flow out, so that the flow direction of the cooling liquid is opposite to the flow of the profile raw material, thereby improving the cooling effect of the cooling liquid; Specifically, the profiled material melted by the extruder will first enter the static mixer through the right interface 18, and then the profiled material will flow into the inner ring plate 62, and continue to flow to the left along the inner wall of the inner ring plate 62 until it reaches the accommodation space on the right side of the inner cylinder 1. In the process of flowing, due to the guidance of the third arc surface 67, the profiled material will flow smoothly to the left along the third arc surface 67, so as to smoothly transition to the inner cylinder 1, and will not flow back at the connection between the inner ring plate 62 and the inner cylinder 1, thereby avoiding leakage at the connection between the inner ring plate 62 and the inner cylinder 1. And the profiled material in the right accommodating space will continuously gather toward the inner wall of the inner cylinder 1 under the limitation of the cone 14, and finally enter the vertical hole 16 located on the right side of the inner cylinder 1 under the action of the extruder pressure, and diffuse to the outside of the inner cylinder 1 in all directions under the conveyance of the vertical hole 16, flow into the buffer space 5, and gather to the left along the outer wall of the inner cylinder 1 and the inner wall of the outer cylinder 2, and then re-enter the inner cylinder 1 through the vertical hole 16 located on the left side of the inner cylinder 1. At this time, the profiled material is in the accommodating space on the left. When the profiled material is transitioning to the buffer space 5 and flowing out through the buffer space 5, due to the cooperation between the first stop groove 3 and the second stop groove 65, the outer ring plate 63 can be inserted into the buffer space 5 in a manner of being closely attached to the inner wall of the outer tube 2 and the outer wall of the inner tube 1. At this time, the outer ring plate 63 and the outer tube 2 and the inner tube 1 are set to be interference fit, and the sealing performance is relatively high, which preliminarily prevents the profiled material from flowing out and leaking through the connection between the outer ring plate 63 and the outer tube 2 and the inner tube 1, that is, the right side or left side of the buffer space 5; At the same time, when the profiled material on the right side of the inner tube 1 just enters the buffer space 5, it will flow to the left along the second arc-shaped surface 66 on the right side, and under the guidance of the second arc-shaped surface 66, the profiled material always has a tendency to flow to the left, and can smoothly transition to the left side of the buffer space 5, thereby again avoiding leakage of the profiled material through the right side of the buffer space 5; Similarly, when the profiled material enters the inner tube 1 again on the left side of the sewed gap, the second curved surface 66 on the left side will guide the profiled material at the left end of the buffer space 5, so that the profiled material at this location has a flow tendency to turn downward along the second curved surface 66, thereby again avoiding leakage of the profiled material through the left side of the buffer space 5 during the flow transition, and the profiled material can accurately flow downward through the vertical hole 16 on the left side and all flow back to the inner tube 1; The arrangement of the first curved surface 4 in the buffer space 5 can not only guide the profiled material to flow from right to left, but also the design of the first curved surface 4 gradually moving away from both ends to the middle can not only reduce the pressure of the profiled material when it flows, but also enable the buffer space 5 to accommodate more profiled material, thereby improving the production efficiency of the profiled material; A sealing member 64, i.e., an O-ring, is embedded at the mating surface of the first stop groove 3 and the second stop groove 65, so that the sealing performance of the connection between the outer ring plate 63 and the outer cylinder 2 is greatly improved. That is, under the action of the first stop groove 3, the second stop groove 65, the second arc surface 66, the third arc surface 67, and the sealing member 64, the sealing between the flange 61 and the inner cylinder 1 and the outer cylinder 2 becomes a radial seal, and the flow path of the profiled raw material in the molten state can be effectively guided to avoid leakage of the profiled raw material, thereby greatly improving the sealing performance of the static mixer; Furthermore, due to the continuous pressure of the extruder and the continuous influx of the profiled raw materials, the profiled raw materials reaching the left side of the inner cylinder 1 will continue to flow to the left into the heater 20, and after being heated again, they will flow into the mold body 21 at a high temperature and be further extruded, thereby completing the mixed production of the profiled raw materials; When the profiled material enters the static mixer, the staff injects coolant into the first pipe 73 located on the left side of the shell 72, and the coolant flows to the right along the groove 71, and then flows out through the second pipe 74 located on the right side of the shell 72, so as to perform a temperature control on the static mixer; During the primary temperature control process, the staff can also inject coolant into the second pipe 74 located on the left side of the inner tube 1. The coolant will enter the channel 11 and flow rightward along the inside of the transverse hole 13 until it flows out through the second pipe 74 located on the right side of the inner tube 1, thereby performing secondary temperature control on the static mixer. At the same time, a temperature sensor 17 of model WRNK-291 is added on the left side of the inner cylinder 1, which can test the temperature of the inner cylinder 1, that is, the temperature inside the static mixer, and decide whether to perform two-way cooling at the same time, so as to ensure that the temperature inside the static mixer is appropriate. The temperature control in two different ways can quickly cool the temperature inside the static mixer, and the temperature adjustment speed is fast, the methods are multiple, and the stability is high, which is conducive to the use of the static mixer. This embodiment specifically solves the problem that the current static mixer uses end face sealing, which has low sealing performance and is prone to leakage of profiled materials. In addition, when the existing static mixer is in use, there is only one temperature control medium channel 11, and the temperature adjustment speed is slow, which affects the use.

[0029] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A static mixer for a profile production line, characterized in that: It comprises an inner cylinder (1), an outer cylinder (2) is sleeved on the outer side of the inner cylinder (1), first stop grooves (3) are provided at both ends of the inner wall of the outer cylinder (2), a first arc surface (4) is provided on the inner wall of the outer cylinder (2), and a buffer space (5) is formed between the inner cylinder (1) and the outer cylinder (2); Sealing assemblies (6) are provided at both ends of the cache space (5), and the sealing assemblies (6) include flanges (61) located at both ends of the outer cylinder (2), the side of the flange (61) close to the inner cylinder (1) is connected to an inner ring plate (62) inserted into the inner cylinder (1), and the side of the flange (61) close to the outer cylinder (2) is connected to an outer ring plate (63) inserted into the cache space (5), and a sealing member (64) is embedded on the outer side of the outer ring plate (63); The sealing assembly (6) further comprises a second stop groove (65) located at the outer ends of the two outer ring plates (63) and adapted to the first stop groove (3); the inner walls of the ends of the two outer ring plates (63) are both provided with a second arcuate surface (66); and the inner walls of the ports of the two inner ring plates (62) are both provided with a third arcuate surface (67); The first arcuate surface (4) is arranged to gradually move away from the inner cylinder (1) from both ends to the middle, the opening of the second arcuate surface (66) is in contact with the end of the first arcuate surface (4) to guide the raw material to smoothly transition at the connection between the outer ring plate (63) and the outer cylinder (2), and the opening of the third arcuate surface (67) is in contact with the inner wall of the inner cylinder (1) to guide the raw material to smoothly transition at the connection between the inner ring plate (62) and the inner cylinder (1); Temperature control components are also provided at both ends of the inner cylinder (1) and on the outer surface of the outer cylinder (2), for adjusting the temperature inside the static mixer in two ways at the same time.

2. The static mixer for a profile production line according to claim 1, characterized in that: The two flanges (61) are connected to the outer cylinder (2) by bolts, and the tops of the two flanges (61) are installed with lifting rings (8); The first stop groove (3), the second stop groove (65), the buffer space (5), the first arcuate surface (4), the second arcuate surface (66), and the third arcuate surface (67) are all arranged in a ring shape.

3. The static mixer for a profile production line according to claim 1, characterized in that: The outer diameter of the inner ring plate (62) matches the inner diameter of the inner cylinder (1), the inner diameter of the outer ring plate (63) matches the outer diameter of the inner cylinder (1), and the outer diameter of the outer ring plate (63) matches the inner diameter of the first stop groove (3); The sealing member (64) is configured as an O-type sealing ring, and an accommodating groove (9) for accommodating the sealing member (64) is provided on the outer sides of the two outer ring plates (63).

4. The static mixer for a profile production line according to claim 1, characterized in that: The inner wall and the outer wall at both ends of the inner cylinder (1) are protruded outwardly along the length direction of the inner cylinder (1) to form a protrusion (10), and an annular channel (11) is formed between the protrusion (10) located on the outer side and the protrusion (10) located on the inner side, and a sealing plate (12) is provided at the outer opening of the channel (11); Wherein, a plurality of transverse holes (13) connected to the channel (11) are distributed transversely on the inner wall between the protruding portion (10) located on the outer side and the protruding portion (10) located on the inner side of the inner tube (1); A vertebral body (14) is transversely arranged inside the inner cylinder (1), both ends of the vertebral body (14) are chamfered, and a ring-shaped clamping plate (15) for clamping the vertebral body (14) is connected to the middle inner wall of the inner cylinder (1), and the inner cylinder (1) is divided into two left and right accommodating spaces by the vertebral body (14) and the clamping plate (15).

5. The static mixer for a profile production line according to claim 4, characterized in that: The temperature control assembly comprises a spiral groove (71) formed on the outer surface of the outer cylinder (2), a shell (72) sleeved on the outside of the outer cylinder (2), and two first pipes (73) installed on the front and rear sides of the shell (72); The temperature control assembly further comprises two second pipes (74), the two second pipes (74) being L-shaped as a whole, and the short sides of the two second pipes (74) respectively pass through the flanges (61) and the sealing plate (12) at both ends of the inner tube (1) in sequence, and are connected to the channel (11).

6. The static mixer for a profile production line according to claim 5, characterized in that: The two first pipes (73) are respectively connected to the starting point and the end point of the groove (71), and the long sides of the two second pipes (74) are respectively arranged above and below the inner tube (1).

7. The static mixer for a profile production line according to claim 4, characterized in that: A plurality of vertical holes (16) are vertically distributed on the inner wall of the inner cylinder (1) between the outer protrusion (10) and the inner protrusion (10), the vertical holes (16) and the transverse holes (13) being staggered, and the buffer space (5) is connected to the interior of the inner cylinder (1) via the vertical holes (16).

8. The static mixer for a profile production line according to claim 7, characterized in that: A temperature sensor (17) is installed on one end of the inner tube (1); the temperature sensor (17) is arranged in an L shape, and the short side sequentially passes through the flange (61) and the sealing plate (12) and extends into the inner wall of the inner tube (1); An interface (18) is installed on one side of the two flanges (61) away from the inner tube (1), and an end cover (19) is installed on the interface (18).

9. A static mixer for a profile production line according to claim 8, characterized in that: in, A heater (20) is installed on one of the end covers (19) close to the temperature sensor (17), and a mold body (21) is installed outside the heater (20).

10. A method for using a static mixer for a profile production line according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When in use, the profiled material melted by the extruder first enters the static mixer through the right interface (18), then flows into the inner ring plate (62), and continues to flow to the left along the inner wall of the inner ring plate (62) until it reaches the accommodating space on the right side of the inner cylinder (1); S2, the profiled material in the right accommodating space will continuously gather toward the inner wall of the inner cylinder (1) under the limit of the cone (14), and finally enter the vertical hole (16) located on the right side of the inner cylinder (1) under the action of the extruder pressure, and diffuse toward the outside of the inner cylinder (1) in all directions under the conveyance of the vertical hole (16), and flow into the buffer space (5); S3, with the continuous influx of the profiled raw material and the pressure of the extruder, the profiled raw material inside the right buffer space (5) will continue to gather to the left along the outer wall of the inner cylinder (1) and the inner wall of the outer cylinder (2), and then enter the accommodating space on the left side of the inner cylinder (1) through the vertical hole (16) located on the left side of the inner cylinder (1), and continue to flow to the left; S4. When the profiled material enters the static mixer, the staff injects a coolant into the first pipe (73) located on the left side of the shell (72). The coolant flows to the right along the channel (71) and then flows out through the second pipe (74) located on the right side of the shell (72), thereby performing a temperature control on the static mixer. S5. During the primary temperature control process, the staff may also inject cooling liquid into the second pipe (74) located on the left side of the inner tube (1). The cooling liquid will enter the channel (11) and flow rightward along the inside of the transverse hole (13) until it flows out through the second pipe (74) located on the right side of the inner tube (1), thereby performing secondary temperature control on the static mixer. S6. The profiled material flowing to the left first reaches the interior of the heater (20) and is heated again. After maintaining its own temperature, it continues to flow to the left into the interior of the mold body (21) and is finally extruded, thereby completing the mixed production of the profiled material.

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