Extrusion device for producing anti-expansion thermal insulation strips

Abstract

The utility model relates to anti -inflation heat -insulation strip production technical field, proposes a kind of extrusion device for anti -inflation heat -insulation strip production, including extrusion platform, the top of extrusion platform is fixedly connected with mixing barrel, the bottom of mixing barrel is fixedly penetrated with material conveying channel, the end of material conveying channel away from the bottom of mixing barrel is fixedly penetrated with the circumference of screw extruder, the circumference of mixing barrel is fixedly penetrated with feeding pipe. In the process of processing heat -insulation strip, the required material is added into mixing barrel by feeding pipe, after starting motor and thermostat, the output shaft of motor drives rotating shaft to rotate, drives high shear kneading block to stir, rotates support shaft and reverse high shear kneading block by the transmission of pulley and belt, realizes middle dry mixing effect, the problem that heat -insulation strip is not stable in the structure connection of metal in prior art is solved by the above technical scheme.

Description

Technical Field

[0001] This utility model relates to the field of anti-expansion heat insulation strip production technology, specifically, to an extrusion device for producing anti-expansion heat insulation strips. Background Technology

[0002] The thermal break strip is the core component of the through-bar thermal insulation profile. It is both a "broken bridge" in the heat transfer path of the aluminum profile, reducing the heat transfer in the aluminum profile; and a structural connector between the two aluminum profiles on both sides of the thermal insulation profile. Through its connection, the three parts of the thermal insulation profile become a whole and share the load.

[0003] In the current market, the different raw materials used in the processing of thermal insulation strips are the key factors affecting the performance of thermal insulation strips. Thermal insulation strips are affected by temperature, which causes them to expand, thus affecting their structural connection within the metal. Therefore, a thermal insulation strip with a low coefficient of expansion is needed. Utility Model Content

[0004] This invention proposes an extrusion device for producing anti-expansion thermal insulation strips, which solves the problem that the high thermal expansion coefficient of existing thermal insulation strips leads to unstable structural connection between the thermal insulation strips and the metal.

[0005] The technical solution of this utility model is as follows: This utility model is an extrusion device for producing anti-expansion heat insulation strips, including an extrusion table, a screw extruder is provided on the top of the extrusion table, a mixing tank is fixedly connected to the top of the extrusion table, a conveying channel is fixedly passed through the bottom of the mixing tank, one end of the conveying channel away from the bottom of the mixing tank is fixedly passed through the circumferential surface of the screw extruder, a feeding pipe is fixedly passed through the circumferential surface of the mixing tank, and a twin-screw mixing mechanism is provided inside the mixing tank; The twin-screw blending mechanism includes a mounting frame fixedly connected to the top of the mixing tank. A motor is fixedly connected to the top of the mounting frame, and a rotating shaft is fixedly connected to the output shaft of the motor. The circumferential surface of the rotating shaft penetrates and rotatably connects to the top of the mixing tank and the mounting frame. A high-shear kneading block is fixedly connected to the circumferential surface of the rotating shaft. A pulley is fixedly passed through the circumferential surface of the rotating shaft, and a belt is provided on the circumferential surface of the pulley. A support shaft is rotatably connected to the bottom of the mounting frame. A second pulley is fixedly passed through the circumferential surface of the support shaft, and a reverse high-shear kneading block is fixedly connected to the circumferential surface of the support shaft. The purpose of this mechanism is to pre-treat the raw materials, specifically the carbon fiber / basalt fiber, by plasma treatment to enhance surface activity.

[0006] Optionally, an external gear is fixedly inserted through the circumference of the rotating shaft, and an internal gear is rotatably connected inside the mixing barrel. A pushing scraper is fixedly connected to the bottom of the internal gear. The purpose is to ensure that the pushing scraper can scrape the inner wall of the mixing barrel and push the raw materials during the rotation process.

[0007] Optionally, the first pulley is connected to the second pulley via a belt, and the external gear and the internal gear mesh with each other. The purpose is to ensure that the rotation of the first pulley can drive the second pulley to rotate via the belt, and to ensure that the rotation of the external gear can drive the internal gear to rotate.

[0008] Optionally, the stagger angle of the high-shear kneading blocks is set to 60 degrees, and a thermostat is provided on the circumferential surface of the mixing tank. The temperature of the thermostat is set to 80°C, the purpose of which is to improve the mixing effect and enhance dispersion.

[0009] Optionally, a granulation mechanism is provided on the top of the extrusion table. The granulation mechanism includes a power box, which is fixedly connected to the bottom of the mixing tank. A push rod is fixedly connected to the circumferential surface of the power box through a rotating shaft. A control shaft is rotatably connected inside the power box. A force-bearing rod is fixedly connected to the circumferential surface of the control shaft. A pelletizing blade is fixedly connected to the circumferential surface of the control shaft. A bevel gear is fixedly passed through the circumferential surface of the rotating shaft. A cooling fan is provided on the side of the power box. A rotating shaft is fixedly connected to the side of the cooling fan. A bevel gear is fixedly passed through the circumferential surface of the rotating shaft. The purpose of this is to pelletize the mixed material so that the moisture content is ≤0.2%.

[0010] Optionally, a torsion spring is fixedly connected inside the power box, and one end of the torsion spring away from the inside of the power box is fixedly connected to the circumferential surface of the control shaft. The purpose of this is to ensure that the control shaft can automatically reset and reduce manual intervention.

[0011] Optionally, the circumferential surface of the feeding channel is provided with a cutting groove, and the side of the pelletizing blade is slidably connected to the inside of the cutting groove, the purpose of which is to ensure that the pelletizing blade can perform stable cutting inside the cutting groove.

[0012] Optionally, the side of the force-bearing rod is located on the displacement trajectory of the push rod, and the first bevel gear and the second bevel gear mesh with each other. The purpose is to ensure that the movement of the push rod can push the force-bearing rod, and to ensure that the rotation of the first bevel gear can drive the second bevel gear to rotate.

[0013] The working principle and beneficial effects of this utility model are as follows: 1. In this utility model, through the cooperation of components such as the motor, high-shear kneading block, and reverse high-shear kneading block of the twin-screw mixing mechanism, during the processing of the heat insulation strip, the worker adds the required materials to the mixing tank through the feeding pipe. After starting the motor and thermostat, the output shaft of the motor drives the rotating shaft to rotate, which drives the high-shear kneading block to stir. Through the transmission of pulleys and belts, the support shaft and the reverse high-shear kneading block also rotate, achieving a medium-dry mixing effect. The meshing of the external gear and the internal gear causes the pushing scraper to rotate, cleaning the inner wall of the mixing tank and pushing the material into the mixing area. This design effectively improves the mixing uniformity of the materials and helps to improve the performance of the heat insulation strip.

[0014] 2. In this utility model, through the cooperation between components such as the pelletizing blade, the cooling fan, and the cutting groove of the pelletizing mechanism, after the mixing is completed, the rotation of the rotating shaft drives the push rod to rotate, which in turn pushes the force rod. The movement of the force rod drives the pelletizing blade to pelletize through the control shaft, thus completing the material conveying. At the same time, through the transmission of the bevel gear, the cooling fan is started to cool and pelletize the material. The push rod continues to rotate, causing the pelletizing blade to reciprocate in the cutting groove. This design ensures that the pelletizing process is efficient and stable, thereby improving product quality. Attached Figure Description

[0015] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0016] Figure 1 This is a three-dimensional structural diagram of the extrusion table of this utility model; Figure 2 This is a three-dimensional cross-sectional structural diagram of the mixing tank of this utility model; Figure 3 This is a three-dimensional cross-sectional structural diagram of the power box of this utility model; Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram; Figure 5 This utility model Figure 3 A three-dimensional magnified structural diagram of B.

[0017] In the diagram: 1. Extrusion table; 2. Screw extruder; 3. Mixing tank; 4. Material conveying channel; 5. Feeding pipe; 6. Twin-screw blending mechanism; 61. Mounting frame; 62. Motor; 63. Rotating shaft; 64. High-shear kneading block; 65. Pulley 1; 66. Belt; 67. Support shaft; 68. Pulley 2; 69. Reverse high-shear kneading block; 610. External gear; 611. Internal gear; 612. Push scraper; 613. Thermostat; 7. Granulation mechanism; 71. Power box; 72. Push rod; 73. Control shaft; 74. Force rod; 75. Pelletizing blade; 76. Bevel gear 1; 77. Cooling fan; 78. Rotating shaft; 79. Bevel gear 2; 710. Torsion spring; 711. Cutting groove. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0019] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Example

[0022] Reference Figures 1-5This is the first embodiment of the present invention, which proposes an extrusion device for producing anti-expansion heat insulation strips, including an extrusion table 1, a screw extruder 2 on the top of the extrusion table 1, a mixing tank 3 fixedly connected to the top of the extrusion table 1, a conveying channel 4 fixedly penetrating the bottom of the mixing tank 3, one end of the conveying channel 4 away from the bottom of the mixing tank 3 being fixedly penetrating the circumferential surface of the screw extruder 2, a feeding pipe 5 fixedly penetrating the circumferential surface of the mixing tank 3, and a twin-screw mixing mechanism 6 being provided inside the mixing tank 3; The twin-screw blending mechanism 6 includes a mounting frame 61, which is fixedly connected to the top of the mixing tank 3. A motor 62 is fixedly connected to the top of the mounting frame 61. A rotating shaft 63 is fixedly connected to the output shaft of the motor 62. The circumferential surface of the rotating shaft 63 passes through and is rotatably connected to the top of the mixing tank 3 and the mounting frame 61. A high-shear kneading block 64 is fixedly connected to the circumferential surface of the rotating shaft 63. A pulley 65 passes through the circumferential surface of the rotating shaft 63. A belt 66 is provided on the circumferential surface of the pulley 65. A support shaft 67 is rotatably connected to the bottom of the mounting frame 61. A pulley 68 passes through the circumferential surface of the support shaft 67. A reverse high-shear kneading block 69 is fixedly connected to the circumferential surface of the support shaft 67. The purpose of this is to pre-treat the raw materials. The carbon fiber / basalt fiber is treated with plasma to improve its surface activity.

[0023] Optionally, an external gear 610 is fixedly inserted through the circumferential surface of the rotating shaft 63, and an internal gear 611 is rotatably connected inside the mixing barrel 3. A pusher scraper 612 is fixedly connected to the bottom of the internal gear 611. The purpose is to ensure that the pusher scraper 612 can scrape the inner wall of the mixing barrel 3 during rotation and push the raw materials at the same time.

[0024] Optionally, pulley 65 is connected to pulley 68 via belt 66, and external gear 610 and internal gear 611 mesh with each other. The purpose is to ensure that the rotation of pulley 65 can drive pulley 68 to rotate via belt 66, and to ensure that the rotation of external gear 610 can drive internal gear 611 to rotate.

[0025] Optionally, the stagger angle of the high-shear kneading blocks 64 is set to sixty degrees, and a thermostat 613 is provided on the circumferential surface of the mixing tank 3. The temperature of the thermostat 613 is set to eighty degrees, the purpose of which is to improve the mixing effect and enhance dispersion.

[0026] In this embodiment, when heat insulation strips need to be processed, the worker adds materials such as polyetheretherketone (PEEK), carbon fiber (CF), basalt fiber (BF), hexagonal boron nitride (h-BN), silane coupling agent (KH-560), polytetrafluoroethylene (PTFE) micro powder, and anti-hydrolysis agent (carbodiimide) into the mixing tank 3 through the feeding pipe 5. At the same time, the motor 62 and the thermostat 613 are started. The output shaft of the motor 62 drives the rotating shaft 63 to rotate. The rotation of the rotating shaft 63 drives the high-shear kneading block 64 to rotate. The rotation of the rotating shaft 63 also drives the pulley 65 to rotate. The rotation of the pulley 65 drives the belt 66 to rotate. The pulley 68 rotates, which in turn drives the support shaft 67 to rotate. The support shaft 67 then drives the reverse high-shear kneading block 69 to rotate. The high-shear kneading block 64 and the reverse high-shear kneading block 69 perform medium-dry mixing of the raw materials inside the mixing tank 3 for ten minutes. Simultaneously, the rotating shaft 63 drives the external gear 610 to rotate. The external gear 610 meshes with the internal gear 611, causing the external gear 610 to rotate and drive the pushing scraper 612 to rotate. During the rotation of the pushing scraper 612, the inner wall of the mixing tank 3 is scraped, and the material is pushed to move to the mixing area. Example

[0027] Reference Figures 1-5 This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that: a granulation mechanism 7 is provided on the top of the extrusion table 1. The granulation mechanism 7 includes a power box 71, which is fixedly connected to the bottom of the mixing tank 3. A push rod 72 is fixedly connected through the circumferential surface of the power box 71 via a rotating shaft 63. A control shaft 73 is rotatably connected inside the power box 71. A force-bearing rod 74 is fixedly connected to the circumferential surface of the control shaft 73. A pelletizing blade 75 is fixedly connected to the circumferential surface of the control shaft 73. A first bevel gear 76 is fixedly passed through the circumferential surface of the rotating shaft 63. A cooler 77 is provided on the side of the power box 71. A rotating shaft 78 is fixedly connected to the side of the cooler 77. A second bevel gear 79 is fixedly passed through the circumferential surface of the rotating shaft 78. The purpose of this is to pelletize the mixed material so that the moisture content is ≤0.2%.

[0028] Optionally, a torsion spring 710 is fixedly connected inside the power box 71. One end of the torsion spring 710 away from the inside of the power box 71 is fixedly connected to the circumferential surface of the control shaft 73. The purpose is to ensure that the control shaft 73 can automatically reset and reduce manual intervention.

[0029] Optionally, a cutting groove 711 is provided on the circumferential surface of the feeding channel 4, and the side of the pelletizing blade 75 is slidably connected to the inside of the cutting groove 711. The purpose is to ensure that the pelletizing blade 75 can make stable cuts inside the cutting groove 711.

[0030] Optionally, the side of the force-bearing rod 74 is located on the displacement trajectory of the push rod 72, and the first bevel gear 76 and the second bevel gear 79 mesh with each other. The purpose is to ensure that the movement of the push rod 72 can push the force-bearing rod 74, and to ensure that the rotation of the first bevel gear 76 can drive the second bevel gear 79 to rotate.

[0031] Compared to Embodiment 1, further, the rotating shaft 63 drives the push rod 72 to rotate while rotating. During the rotation of the push rod 72, it pushes the force rod 74. The force rod 74 rotates through the control shaft 73, which in turn drives the pelletizing blade 75 to rotate. At this time, the mixed material enters the conveying channel 4 and is pelletized by the rotating pelletizing blade 75. Simultaneously, the rotating shaft 63 drives the first bevel gear 76 to rotate. The first bevel gear 76 meshes with the second bevel gear 79, causing the first bevel gear 76 to rotate and drive the cooling fan 77 to rotate through the second bevel gear 79. This stabilizes and lowers the power box 71, thereby cooling and pelletizing the mixed material. When the push rod 72 continues to rotate away from the force rod 74, the control shaft 73 is reset by the torque of the torsion spring 710. Through the continuous rotation of the push rod 72, the pelletizing blade 75 continuously reciprocates inside the cutting groove 711.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An extrusion apparatus for producing anti-expansion heat insulation strips, characterized in that, The device includes an extrusion platform (1), a screw extruder (2) is provided on the top of the extrusion platform (1), a mixing tank (3) is fixedly connected to the top of the extrusion platform (1), a conveying channel (4) is fixedly passed through the bottom of the mixing tank (3), one end of the conveying channel (4) away from the bottom of the mixing tank (3) is fixedly passed through the circumferential surface of the screw extruder (2), a feeding pipe (5) is fixedly passed through the circumferential surface of the mixing tank (3), and a twin-screw mixing mechanism (6) is provided inside the mixing tank (3). The twin-screw mixing mechanism (6) includes a mounting frame (61), which is fixedly connected to the top of the mixing tank (3). A motor (62) is fixedly connected to the top of the mounting frame (61). A rotating shaft (63) is fixedly connected to the output shaft of the motor (62). The circumferential surface of the rotating shaft (63) passes through and is rotatably connected to the top of the mixing tank (3) and the mounting frame (61). A high-shear kneading block (64) is fixedly connected to the circumferential surface of the rotating shaft (63). A pulley (65) is fixedly passed through the circumferential surface of the rotating shaft (63). A belt (66) is provided on the circumferential surface of the pulley (65). A support shaft (67) is rotatably connected to the bottom of the mounting frame (61). A pulley (68) is fixedly passed through the circumferential surface of the support shaft (67). A reverse high-shear kneading block (69) is fixedly connected to the circumferential surface of the support shaft (67).

2. The extrusion apparatus for producing anti-expansion heat insulation strips according to claim 1, characterized in that, An external gear (610) is fixedly inserted through the circumference of the rotating shaft (63), and an internal gear (611) is rotatably connected inside the mixing barrel (3). A pusher scraper (612) is fixedly connected to the bottom of the internal gear (611).

3. The extrusion apparatus for producing anti-expansion heat insulation strips according to claim 2, characterized in that, The first pulley (65) is connected to the second pulley (68) via a belt (66), and the external gear (610) meshes with the internal gear (611).

4. The extrusion apparatus for producing anti-expansion heat insulation strips according to claim 3, characterized in that, The staggered angle of the high shear kneading block (64) is set to sixty degrees, and a thermostat (613) is provided on the circumferential surface of the mixing tank (3), with the temperature of the thermostat (613) set to eighty degrees.

5. The extrusion apparatus for producing anti-expansion heat insulation strips according to claim 4, characterized in that, The top of the extrusion table (1) is provided with a granulation mechanism (7), which includes a power box (71). The power box (71) is fixedly connected to the bottom of the mixing tank (3). The rotating shaft (63) passes through the circumferential surface of the power box (71) and is fixedly connected to a push rod (72). The inside of the power box (71) is rotatably connected to a control shaft (73). The circumferential surface of the control shaft (73) is fixedly connected to a force rod (74). The circumferential surface of the control shaft (73) is fixedly connected to a pelletizing blade (75). The circumferential surface of the rotating shaft (63) is fixedly connected to a bevel gear (76). The side of the power box (71) is provided with a cooler (77). The side of the cooler (77) is fixedly connected to a rotating shaft (78). The circumferential surface of the rotating shaft (78) is fixedly connected to a bevel gear (79).

6. The extrusion apparatus for producing anti-expansion heat insulation strips according to claim 5, characterized in that, A torsion spring (710) is fixedly connected inside the power box (71), and one end of the torsion spring (710) away from the inside of the power box (71) is fixedly connected to the circumferential surface of the control shaft (73).

7. The extrusion apparatus for producing anti-expansion heat insulation strips according to claim 6, characterized in that, The circumferential surface of the feeding channel (4) is provided with a cutting groove (711), and the side of the pelletizing blade (75) is slidably connected to the inside of the cutting groove (711).

8. The extrusion apparatus for producing anti-expansion heat insulation strips according to claim 7, characterized in that, The side of the force-bearing rod (74) is located on the displacement trajectory of the push rod (72), and the first bevel gear (76) and the second bevel gear (79) mesh with each other.

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