Plastic extruding machine with heat preservation and insulation mechanism

Abstract

The invention relates to the technical field of extruders, in particular to a plastic extruding machine with a heat preservation and insulation mechanism, which comprises a plastic extruding machine main body, the plastic extruding machine main body comprises an extruding screw rod, two extruding pipelines are arranged on the outer side of the extruding screw rod, and a bottom plate is arranged at one end of the plastic extruding machine main body. And a plurality of heat preservation mechanisms are fixedly arranged on the outer side walls of the two extrusion pipelines, a bottom plate is arranged on one side of the plastic extruding machine body, and the bottom plate is used for supporting the heat preservation mechanisms. According to the extrusion pipeline heat preservation device, through the arrangement of the heat preservation mechanism, the heated section of the extrusion pipeline is covered and shielded through the second heat insulation tile, the first heat insulation tile and the transverse partition plate, and therefore heat loss on the extrusion pipeline is reduced, the heat preservation effect on the extrusion pipeline is improved, and power consumption and cost are reduced; and meanwhile, the staggered angle of the first heat insulation tile and the second heat insulation tile is controlled through the second driving assembly, the cooling speed of the extrusion pipeline is controlled in cooperation with the arrangement of the ventilation module, and too large temperature change before and after time is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of extruders, in particular to an extruder with a heat preservation and insulation mechanism. Background Art

[0002] The injection molding machine needs to heat and melt the plastic, and then extrude the melted plastic into the plastic mold. During the extrusion process of the extruder, unstable temperature will lead to unstable product quality and even melting. When the temperature is too high, the melting temperature of the plastic material will exceed its thermal stability temperature, thereby causing decomposition or deterioration. When the temperature is too low, the plastic material cannot be fully melted, thus affecting the extrusion quality of the product. Therefore, extruder temperature control is a key link in product quality and production efficiency.

[0003] In order to solve the problem of large amount of heat loss during the heating process, reduce the cost, improve the temperature control of plastic during heating, and improve the temperature stability during operation, the present invention provides an extruder with a heat preservation and insulation mechanism. Summary of the invention

[0004] The object of the present invention is to provide an extruder with a heat preservation and insulation mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An extruder with a heat preservation and heat insulation mechanism comprises an extruder main body, the extruder main body comprises an extrusion screw, two extrusion pipes are arranged on the outside of the extrusion screw, a bottom plate is arranged at one end of the extruder main body, a plurality of heat preservation mechanisms are fixedly arranged on the outer side walls of the two extrusion pipes, a bottom plate is arranged on one side of the extruder main body, the bottom plate is used to support the heat preservation mechanism, an extrusion die is fixedly installed on one end of the bottom plate, the heat preservation mechanism comprises two half-leaf covers, the half-leaf covers are fixedly connected to the outer side walls of the extrusion pipes on the adjacent sides, a support shaft is rotatably connected between the bottom ends of the two half-leaf covers, the support shaft is fixedly connected to the bottom plate, both ends of the inner wall of the half-leaf covers are fixedly connected to transverse partitions, and the two transverse partitions are fixedly connected to the inner wall of the half-leaf covers. A second insulation tile is clamped between the plates, and the outer wall of the second insulation tile is slidably connected with the first insulation tile, and the outer walls of the second insulation tile and the first insulation tile are equidistantly provided with venting grooves, and an electromagnetic heating component is arranged in the middle of the inner wall of the half-leaf cover and between the outer wall of the first insulation tile, and the electromagnetic heating component is fixedly installed on the inner wall of the half-leaf cover, and a ventilation module is arranged between the two ends of the two cross partitions, and the ventilation module is used to drive the air flow inside the half-leaf cover, a driving component one is fixedly installed on one end of the outer wall of the half-leaf cover, and a driving component two is fixedly installed on one end of the outer wall of one half-leaf cover, the driving component two is transmission connected to the first insulation tile, and the driving component one is transmission connected to the ventilation module.

[0007] Furthermore, a long groove is provided on one side wall at both ends of the transverse partition, one end of the long groove is slidably connected with an insertion rod, a return spring is fixedly connected between one end of the insertion rod and the inner wall of the other end of the long groove, and fixing grooves are provided at the four top corners of the thermal insulation tile part 2, and the fixing grooves fit with the insertion rod.

[0008] Furthermore, the thermal insulation tile 2 and the thermal insulation tile 1 are made of ceramic material.

[0009] Furthermore, the venting grooves on the thermal insulation tile 2 and the thermal insulation tile 1 are staggered with each other, and the deflection angle between two adjacent venting grooves on the thermal insulation tile 1 is forty-five degrees, and the fan-shaped angle of the venting groove is less than forty-five degrees.

[0010] Furthermore, one end of the horizontal partition is rotatably connected to a shaft rod, one end of the shaft rod is fixedly connected to gear 1, the other end of the shaft rod is fixedly connected to gear 2, one end of the outer wall of the insulation tile component 1 is fixedly connected to an arc gear rod, the gear 1 is used to mesh with the arc gear rod, and the drive component 2 is connected to gear 1 through transmission.

[0011] Furthermore, the outer walls at both ends of the half-leaf cover are provided with leakage nets, the ventilation module comprises a long rod, both ends of the outer walls of the long rod are rotatably connected with air ducts, one end of the air duct is fixedly connected with the adjacent transverse partition, the outer walls of the long rod corresponding to one end of the two air ducts are slidably sleeved with fan blades, and both ends of the long rod are rotatably connected with the inner wall of the half-leaf cover.

[0012] Furthermore, the other end of the air guide pipe is deflected toward the outer side wall of the extrusion pipe.

[0013] Furthermore, a pulley is fixedly sleeved at one end of the long rod, and a belt 1 is transmission-connected between the pulleys located at the inner side of the same half-leaf cover, and the output end of the driving component 1 is transmission-connected to a pulley via a belt 2.

[0014] Furthermore, a closure member is fixedly connected to the inner wall of one end of the air duct, a plurality of baffles are equidistantly fixedly connected to the inner wall of the closure member in a ring shape, and the number of baffles is consistent with the number of blades on the fan blade, an outer wall of the long rod is provided with a second long groove on one side wall of the fan blade, the fan blade is slidably connected to the inner wall of the second long groove, conical frames are fixedly provided at both ends of the long rod, sliding grooves are evenly provided on both sides of the inner wall of the conical frame, a counterweight block is slidably connected to the inner wall of the sliding groove, a pull rope is fixedly connected between the counterweight block and the inner wall of the adjacent fan blade, a second long groove is fixedly connected between the fan blade and the conical frame on the adjacent side, and the second long groove is slidably sleeved with the long rod.

[0015] Furthermore, the long rod is located between the outer wall of the electromagnetic heating component and the inner wall of the half-leaf cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the setting of the heat preservation mechanism, when the extruded pipe is heated, the electromagnetic heating component heats the extruded pipe through electromagnetic induction, and the extruded pipe is covered and shielded by the second heat insulation tile and the first heat insulation tile, so as to reduce the heating of the electromagnetic heating component by the heat radiation of the extruded pipe after the extruded pipe is heated. The heated section of the extruded pipe is covered and shielded by the second heat insulation tile, the first heat insulation tile and the cross partition, so as to reduce the heat loss on the extruded pipe, improve the heat preservation effect of the extruded pipe, reduce power consumption and cost, and at the same time, the staggered angle of the first heat insulation tile and the second heat insulation tile is controlled by the driving component 2, and the setting of the ventilation module is coordinated to realize the control of the cooling speed of the extruded pipe, avoid excessive temperature changes before and after time, thereby affecting product quality, and improve the temperature control of the extruded pipe.

[0018] 2. Through the setting of the ventilation module, when the long rod is stationary, the baffle blocks the gap between the blades on the fan blade, so that the air duct is in a closed state, reducing the airflow between the half-leaf cover and the insulation tile and the circulation with the outside world, thereby improving the insulation effect of the space between the two horizontal partitions. When it is necessary to accelerate the ventilation between the two horizontal partitions, the long rod rotates to drive the two fan blades and the conical frame to rotate, so that the fan blades are away from the closure on the adjacent side under the action of the counterweight block, so that the air duct is in an open state, which is convenient for controlling and maintaining the temperature stability of the extrusion pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the heat preservation mechanism in the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the half-page cover in the present invention;

[0022] Figure 4 It is a schematic diagram of the internal cross-sectional structure of a half-page cover in the present invention;

[0023] Figure 5 It is a schematic diagram of the explosion structure inside the half-page cover of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the thermal insulation tile 1 and the thermal insulation tile 2 in the present invention;

[0025] Figure 7 It is a schematic diagram of the positions of the ventilation module and the electromagnetic heating component in the present invention;

[0026] Figure 8 It is a schematic diagram of the ventilation module structure in the present invention;

[0027] Fig. 9 It is a schematic diagram of the air duct structure in the present invention.

[0028] In the figure: 100, extruder body; 110, extrusion pipe; 120, extrusion die; 130, bottom plate; 200, heat preservation mechanism; 210, half-leaf cover; 211, drive assembly 1; 212, drive assembly 2; 220, diaphragm; 221, long groove 1; 222, return spring 1; 223, plug rod 1; 230, electromagnetic heating assembly; 240, heat insulation tile 1; 241, arc gear rod; 242 , venting slot; 250, thermal insulation tile two; 251, fixing slot; 260, ventilation module; 261, long rod; 262, pulley; 263, air duct; 264, closing piece; 2641, baffle; 265, fan blade; 266, long slot two; 267, return spring two; 268, conical frame; 269, counterweight; 270, shaft; 271, gear one; 272, gear two; 280, support shaft. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 9In an embodiment of the present invention, an extruder with a heat preservation and heat insulation mechanism includes an extruder body 100, the extruder body 100 includes an extrusion screw, two extrusion pipes 110 are arranged on the outside of the extrusion screw, a bottom plate 130 is arranged at one end of the extruder body 100, and a plurality of heat preservation mechanisms 200 are fixedly arranged on the outer walls of the two extrusion pipes 110, a bottom plate 130 is arranged on one side of the extruder body 100, the bottom plate 130 is used to support the heat preservation mechanism 200, an extrusion die 120 is fixedly installed at one end of the bottom plate 130, and the heat preservation mechanism 200 includes two half-leaf covers 210, the half-leaf covers 210 are fixedly connected to the outer wall of the extrusion pipe 110 on the adjacent side, a support shaft 280 is rotatably connected between the bottom ends of the two half-leaf covers 210, the support shaft 280 is fixedly connected to the bottom plate 130, and the inner walls of the half-leaf covers 210 are both fixedly connected with diaphragms 220, and the two diaphragms A heat insulation tile 250 is clamped between 220, and the outer wall of the heat insulation tile 250 is slidably connected with the heat insulation tile 1 240. The outer walls of the heat insulation tile 250 and the heat insulation tile 1 240 are equidistantly provided with venting grooves 242. An electromagnetic heating component 230 is arranged in the middle of the inner wall of the half-leaf cover 210 and between the outer wall of the heat insulation tile 1 240. The electromagnetic heating component 230 is fixedly installed on the inner wall of the half-leaf cover 210. A ventilation module 260 is arranged between the two ends of the two transverse partitions 220. The ventilation module 260 is used to drive the air flow inside the half-leaf cover 210. A driving component 1 211 is fixedly installed on one end of the outer wall of the half-leaf cover 210, and a driving component 212 is fixedly installed on one end of the outer wall of one half-leaf cover 210. The driving component 212 is transmission-connected to the heat insulation tile 1 240, and the driving component 1 211 is transmission-connected to the ventilation module 260.

[0031] Specifically, when the extrusion pipe 110 is heated, the electromagnetic heating assembly 230 heats the extrusion pipe 110 by electromagnetic induction, and at the same time, the heat insulation tile 250 is initially aligned with the heat insulation tile 1 240, so that the venting grooves 242 on the heat insulation tile 250 and the heat insulation tile 1 240 are mutually offset, so that the extrusion pipe 110 is covered and shielded by the heat insulation tile 250 and the heat insulation tile 1 240, so as to reduce the heat radiation of the extrusion pipe 110 after the extrusion pipe 110 is heated. The heating of the heat component 230 is performed by covering and shielding the heated section of the extrusion pipe 110 through the heat insulation tile 250, the heat insulation tile 1 240 and the cross partition 220, thereby reducing the heat loss on the extrusion pipe 110, providing a heat preservation effect for the extrusion pipe 110, and reducing the influence of the heat radiation of the extrusion pipe 110 on the electromagnetic heating component 230, reducing the temperature of the electromagnetic heating component 230 when it is working, and facilitating the long-term operation of the electromagnetic heating component 230. When extruding, the material in the extrusion pipe When the heat accumulates in the extrusion pipe 110, so that the temperature of the material in the extrusion pipe 110 is higher than the predetermined value, the driving component 212 drives the heat insulating tile 1 240 to rotate, and the venting groove 242 on the heat insulating tile 1 240 is aligned with the venting groove 242 on the heat insulating tile 250, thereby releasing the shielding of the extrusion pipe 110. At the same time, the driving component 1 211 drives the ventilation module 260 to start, so that the airflow enters between the half-leaf cover 210 and the extrusion pipe 110, thereby accelerating the cooling of the extrusion pipe 110, and realizing auxiliary extrusion pipe cooling. The temperature of the extrusion pipe 110 is cooled to avoid continuous heat accumulation in the extrusion pipe 110, which may cause the material to burn. At the same time, through the arrangement of the two extrusion pipes 110, when the extrusion screw needs to be cleaned, the insulation tile 1 240 is restored to be aligned with the insulation tile 2 250, and the restriction on the extrusion pipe 110 is released, so that the two extrusion pipes 110 are directly deflected and separated to both sides, which is convenient for inspection and maintenance of the half-leaf cover 210, and convenient for replacement and inspection of the insulation tile 1 240 and the insulation tile 2 250, and convenient for subsequent maintenance.

[0032] Embodiment 1

[0033] like Figure 2-6 As shown, in the present embodiment, a long groove 221 is provided on one side wall at both ends of the transverse partition 220, and an insertion rod 223 is slidably connected to one end of the long groove 221, and a return spring 222 is fixedly connected between one end of the insertion rod 223 and the inner wall of the other end of the long groove 221, and a fixing groove 251 is provided at the four top corners of the thermal insulation tile 250, and the fixing groove 251 fits with the insertion rod 223, and the thermal insulation tile 250 and the thermal insulation tile 1 240 are made of ceramic material, and the venting grooves 242 on the thermal insulation tile 250 and the thermal insulation tile 1 240 are staggered with each other, and the deflection angle between two adjacent venting grooves 242 on the thermal insulation tile 1 240 is forty-five degrees, and the fan angle of the venting groove 242 is less than forty-five degrees.

[0034] In this embodiment, the thermal insulation tile 250 is conveniently removed by the snap-fit ​​setting between the thermal insulation tile 250 and the cross partition 220, thereby facilitating the disassembly and replacement of the thermal insulation tile 1 240 and the thermal insulation tile 250, and facilitating the inspection and maintenance of the electromagnetic heating assembly 230 and the ventilation module 260. At the same time, the thermal insulation tile 250 is fixed by the insertion rod 1 223 during operation to prevent the thermal insulation tile 250 from deflecting. The ceramic material setting of the thermal insulation tile 1 240 and the thermal insulation tile 250 prevents the electromagnetic heating assembly 230 from directly affecting the thermal insulation tile 1 240 and the thermal insulation tile 250. The setting of the venting groove 242 facilitates the mutual shielding between the thermal insulation tile 1 240 and the thermal insulation tile 250 after the thermal insulation tile 1 240 is aligned with the thermal insulation tile 250.

[0035] like Figure 2-8 As shown, in this embodiment, one end of a transverse partition 220 is rotatably connected to a shaft rod 270, one end of the shaft rod 270 is fixedly connected to a gear 271, and the other end of the shaft rod 270 is fixedly connected to a gear 272. One end of the outer wall of an insulating tile 240 is fixedly connected to an arc gear rod 241, and the gear 271 is used to mesh with the arc gear rod 241. The drive component 212 and the gear 271 are connected by transmission.

[0036] In specific implementation, when the thermal insulation tile 240 needs to be deflected, the driving component 211 drives the gear 271 to rotate through the gear 272 and the shaft 270, and the gear 271 drives the thermal insulation tile 240 to rotate by engaging with the arc gear rod 241. The rotation and extrusion of one thermal insulation tile 240 drives the other thermal insulation tile 240 on the insulation mechanism 200 to rotate, thereby facilitating the control of the misalignment and alignment between the thermal insulation tile 240 and the thermal insulation tile 250.

[0037] Embodiment 2

[0038] On the basis of the first embodiment, in order to improve the heat preservation and heat dissipation effect of the ventilation module 260 on the half-leaf cover 210.

[0039] like Figure 2-9As shown, in the present embodiment, the outer side walls at both ends of the half-leaf cover 210 are provided with leakage nets, and the ventilation module 260 includes a long rod 261, and the outer side walls of the long rod 261 are rotatably connected with air ducts 263 at both ends, and one end of the air duct 263 is fixedly connected with the adjacent transverse partition 220, and the outer side walls of the long rod 261 corresponding to one end of the two air ducts 263 are slidably sleeved with fan blades 265, and the two ends of the long rod 261 are rotatably connected with the inner side walls of the half-leaf cover 210, and the other end of the air duct 263 is deflected toward the outer side wall of the extrusion pipe 110, and one end of the long rod 261 is fixedly sleeved with a pulley 262, and the pulleys 262 located at the inner side of the same half-leaf cover 210 are transmission-connected with a belt one, and the output end of the drive component 1 211 is transmission-connected with a pulley 262 through a belt two, and the inner side wall of one end of the air duct 263 is fixedly connected with a belt. The closing piece 264 has a plurality of baffles 2641 fixedly connected in an annular manner and equidistantly to the inner wall of the closing piece 264, and the number of baffles 2641 is consistent with the number of blades on the fan blade 265. The outer wall of the long rod 261 is located on one side wall of the fan blade 265 and is provided with a second long groove 266. The fan blade 265 is slidably connected to the inner wall of the second long groove 266. Both ends of the long rod 261 are fixedly provided with a conical frame 268. Slide grooves are evenly provided on both sides of the inner wall of the conical frame 268. The inner wall of the slide groove is slidably connected to a counterweight block 269. A pull rope is fixedly connected between the counterweight block 269 and the inner wall of the adjacent fan blade 265. A second long groove 266 is fixedly connected between the fan blade 265 and the conical frame 268 on the adjacent side. The second long groove 266 and the long rod 261 are slidably connected. The long rod 261 is located between the outer wall of the electromagnetic heating component 230 and the inner wall of the half-leaf cover 210.

[0040] In specific implementation, when the long rod 261 is at rest, the fan blade 265 is pressed against the baffle 2641 on the adjacent closing member 264 under the elastic force of the second return spring 267, and the baffle 2641 blocks the gap between the blades on the fan blade 265, so that the air duct 263 is in a closed state, reducing the airflow between the half-leaf cover 210 and the insulation tile 240 and the circulation with the outside world, thereby improving the insulation effect of the space between the two transverse partitions 220. When the driving component 1 211 drives the long rod 261 to rotate, the rotation of the long rod 261 drives the two fan blades 265 and the conical frame 268 to rotate, so that the counterweight block 269 pulls the fan blade 265 to overcome the elastic force of the second return spring 267 and slide under the action of centrifugal force, so that the fan blade 265 deviates from the closing member 264 on the adjacent side. At the same time, one fan blade 265 rotates to introduce air flow between the two transverse partitions 220 through the air duct 263, and the other fan blade 265 guides the air flow outward through the corresponding air duct 263, thereby accelerating the exchange of air between the two transverse partitions 220 and the external air flow. Therefore, when the insulation tile 1 240 and the insulation tile 2 250 are in an aligned state (shielding the extrusion pipe 110), the ventilation module 260 is started to cool down the electromagnetic heating component 230. When the insulation tile 1 240 and the insulation tile 2 250 are staggered, the air flow directly passes through the venting groove 242 through the inclined facility at the other end of the air duct 263 to blow on the surface of the extrusion pipe 110, thereby accelerating the cooling of the extrusion pipe 110, thereby facilitating the control and maintenance of the temperature stability of the extrusion pipe 110.

[0041] In the present invention, in order to facilitate the monitoring of the temperature of each functional section of the extrusion screw, a temperature sensor is installed on the extrusion pipe 110 corresponding to each functional section to monitor the temperature of the material in each functional section. This is the prior art and will not be described in detail here.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An extruder with a heat preservation and insulation mechanism, comprising an extruder body (100), wherein the extruder body (100) comprises an extrusion screw, and two extrusion pipes (110) are arranged outside the extrusion screw, characterized in that: A bottom plate (130) is disposed at one end of the extruder body (100), and a plurality of heat preservation mechanisms (200) are fixedly disposed on the outer side walls of the two extrusion pipes (110). A bottom plate (130) is disposed at one side of the extruder body (100), and the bottom plate (130) is used to support the heat preservation mechanism (200). An extrusion die (120) is fixedly mounted at one end of the bottom plate (130). The heat preservation mechanism (200) includes two half-leaf covers (2 10), the half-leaf cover (210) is fixedly connected to the outer side wall of the extrusion pipe (110) on the adjacent side, a support shaft (280) is rotatably connected between the bottom ends of the two half-leaf covers (210), the support shaft (280) is fixedly connected to the bottom plate (130), both ends of the inner wall of the half-leaf cover (210) are fixedly connected to a transverse partition (220), a second heat insulation tile (250) is clamped between the two transverse partitions (220), and the outer side wall of the second heat insulation tile (250) A heat insulating tile (240) is slidably connected thereto. The outer walls of the heat insulating tile (250) and the heat insulating tile (240) are both provided with venting grooves (242) at equal intervals. An electromagnetic heating component (230) is provided in the middle of the inner wall of the half-leaf cover (210) and between the outer wall of the heat insulating tile (240). The electromagnetic heating component (230) is fixedly installed on the inner wall of the half-leaf cover (210). A through hole is provided between the two ends of the two transverse partitions (220). A wind module (260), the ventilation module (260) is used to drive the airflow inside the half-leaf cover (210), a driving component one (211) is fixedly installed on one end of the outer wall of the half-leaf cover (210), and a driving component two (212) is fixedly installed on one end of the outer wall of the half-leaf cover (210), the driving component two (212) is transmission-connected to the heat-insulating tile one (240), and the driving component one (211) is transmission-connected to the ventilation module (260).

2. The extruder with a heat preservation and insulation mechanism according to claim 1, characterized in that: A long groove (221) is provided on one side wall at both ends of the transverse partition (220), one end of the long groove (221) is slidably connected with an insertion rod (223), a return spring (222) is fixedly connected between one end of the insertion rod (223) and the inner wall of the other end of the long groove (221), and a fixing groove (251) is provided at the four top corners of the thermal insulation tile (250), and the fixing groove (251) fits with the insertion rod (223).

3. The extruder with a heat preservation and insulation mechanism according to claim 2, characterized in that: The second heat-insulating tile (250) and the first heat-insulating tile (240) are made of ceramic material.

4. The extruder with a heat preservation and insulation mechanism according to claim 3, characterized in that: The venting grooves (242) on the second insulation tile (250) and the first insulation tile (240) are offset from each other, and the deflection angle between two adjacent venting grooves (242) on the first insulation tile (240) is forty-five degrees, and the fan-shaped angle of the venting groove (242) is less than forty-five degrees.

5. The extruder with heat preservation and insulation mechanism according to claim 4, characterized in that: One end of the transverse partition (220) is rotatably connected to a shaft (270), one end of the shaft (270) is fixedly connected to a gear 1 (271), and the other end of the shaft (270) is fixedly connected to a gear 2 (272). One end of the outer wall of the thermal insulation tile 1 (240) is fixedly connected to an arc gear rod (241), and the gear 1 (271) is used to mesh with the arc gear rod (241). The drive component 2 (212) is transmission-connected to the gear 1 (271).

6. The extruder with a heat preservation and insulation mechanism according to claim 1, characterized in that: The outer walls at both ends of the half-leaf cover (210) are provided with leakage nets, and the ventilation module (260) comprises a long rod (261), and both ends of the outer wall of the long rod (261) are rotatably connected with air ducts (263), one end of the air duct (263) is fixedly connected with the adjacent transverse partition (220), and the outer wall of the long rod (261) corresponds to one end of the two air ducts (263) and is slidably sleeved with fan blades (265), and both ends of the long rod (261) are rotatably connected with the inner wall of the half-leaf cover (210).

7. An extruder with a heat preservation and insulation mechanism according to claim 6, characterized in that: The other end of the air guide pipe (263) is deflected toward the outer side wall of the extrusion pipe (110).

8. The extruder with a heat preservation and insulation mechanism according to claim 6, characterized in that: A pulley (262) is fixedly sleeved on one end of the long rod (261), and a belt one is transmission-connected between the pulleys (262) located at the inner side of the same half-leaf cover (210), and a second belt is transmission-connected between the output end of the driving component one (211) and a pulley (262).

9. The extruder with a heat preservation and insulation mechanism according to claim 6, characterized in that: The inner side wall of one end of the air guide pipe (263) is fixedly connected with a closing piece (264), and the inner side wall of the closing piece (264) is annularly fixedly connected with a plurality of baffles (2641) at equal intervals, and the number of baffles (2641) is consistent with the number of blades on the fan blade (265), and the outer side wall of the long rod (261) is located on one side wall of the fan blade (265) and is provided with a second long groove (266), and the fan blade (265) is slidably connected with the inner side wall of the second long groove (266), and the long rod (261) is provided with a plurality of baffles (2641) at equal intervals, and the number of baffles (2641) is consistent with the number of blades on the fan blade (265). ) are fixedly provided with conical frames (268) at both ends, and sliding grooves are evenly opened on both sides of the inner wall of the conical frame (268), and the inner wall of the sliding groove is slidably connected with a counterweight block (269), and a pull rope is fixedly connected between the counterweight block (269) and the inner wall of the adjacent fan blade (265), and a return spring 2 (267) is fixedly connected between the fan blade (265) and the conical frame (268) on the adjacent side, and the return spring 2 (267) is slidably sleeved with the long rod (261).

10. The extruder with a heat preservation and insulation mechanism according to claim 6, characterized in that: The long rod (261) is located between the outer wall of the electromagnetic heating component (230) and the inner wall of the half-leaf cover (210).

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