High-temperature-resistant plastic extrusion molding device

Abstract

The utility model belongs to the technical field of high-temperature-resistant plastic extrusion molding, and particularly relates to a high-temperature-resistant plastic extrusion molding device which comprises a base, the top of the base is fixedly connected with a charging barrel through a frame, and a support arranged at the top of the base is used for fixedly installing an extruder; a hot air mechanism is fixedly mounted on one side of the frame, a pretreatment mechanism is fixedly mounted at the top of the charging barrel, and the bottom of the charging barrel is fixedly connected with an extruder through a feeding mechanism; wherein the hot air mechanism comprises a heating box and an exhaust fan, the top of the heating box is fixedly connected with a connecting pipe through the exhaust fan, and one end of the connecting pipe is fixedly connected with a connector; the pretreatment mechanism comprises a first motor and a transmission gear, the first motor drives the transmission gear to rotate through an output shaft, and the transmission gear drives the stirring rod to rotate through a driven gear. According to the utility model, the hot air mechanism is matched with the pretreatment mechanism, so that extruded plastic raw materials can be preheated, and the plastic extrusion molding efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of high-temperature resistant plastic extrusion molding technology, and specifically relates to a high-temperature resistant plastic extrusion molding device. Background Technology

[0002] Extrusion molding is a process used in the plastics manufacturing and processing industry. With the rapid development of the plastics industry and the increasing production of new polymer materials, the application of computer monitoring technology has further promoted the development of extrusion molding technology. Extrusion molding technology occupies a very important position in the total output of the plastics processing industry, and its products are widely used in machinery, chemicals, automobiles, telecommunications, construction, home appliances, toys, and other industries.

[0003] Problems with existing technology:

[0004] In the prior art, the patent application CN221315077U, entitled "A High-Temperature Resistant Engineering Plastic Extrusion Molding Device", "includes a support frame, and an extrusion structure is fixed on the top of the support frame. The extrusion structure includes a discharge cylinder, a feed funnel, a transmission motor housing, a bearing, a transmission shaft, a drive motor, a first helical gear, a second helical gear, a spiral blade, and a transmission rod. The feed funnel is fixed to one end of a side wall of the discharge cylinder, the transmission motor housing is fixed to the bottom of one end of the discharge cylinder, and the drive motor is installed inside the transmission motor housing".

[0005] When the above-mentioned device is in use, the plastic granules directly enter the discharge cylinder for heating and extrusion molding. Due to the hardness of the plastic granules, the heating time inside the discharge cylinder is too long, which affects the efficiency of plastic extrusion molding. At the same time, the device cannot control the amount of plastic granules entering the discharge cylinder, resulting in too many plastic granules entering and leaving residues inside the discharge cylinder, which affects subsequent use. Utility Model Content

[0006] The purpose of this invention is to provide a high-temperature resistant plastic extrusion molding device that can solve the problems of existing plastic extrusion molding devices being unable to preheat plastic particles, resulting in low working efficiency and the inability to precisely control the amount of plastic particles entering the device.

[0007] The specific technical solution adopted by this utility model is as follows:

[0008] A high-temperature resistant plastic extrusion molding device includes a base, a material cylinder is fixedly connected to the top of the base via a frame, and a bracket provided on the top of the base is used to fix and install an extruder.

[0009] A hot air mechanism is fixedly installed on one side of the frame, a pretreatment mechanism is fixedly installed on the top of the barrel, and the bottom of the barrel is fixedly connected to the extruder through a feeding mechanism.

[0010] The hot air mechanism includes a heating box and an exhaust fan. The top of the heating box is fixedly connected to a connecting pipe via the exhaust fan, and one end of the connecting pipe is fixedly connected to a connector.

[0011] The pretreatment mechanism includes a first motor, a transmission gear, and a stirring rod. The first motor drives the transmission gear to rotate via its output shaft. The transmission gear meshes with a driven gear and drives the stirring rod to rotate.

[0012] The heating box is fixedly installed between the frame and the base, and an exhaust fan is fixedly installed on the top of the heating box.

[0013] The connecting pipe is used for fixed connection between the exhaust fan and the connector, which is rotatably mounted on the top of the stirring rod.

[0014] The driven gear is welded to the surface of the stirring rod, which is a hollow structure with several through holes on its surface.

[0015] The first motor is fixedly installed on the top of the material cylinder, and its output shaft is rotatably installed with the partition inside the material cylinder.

[0016] The feeding mechanism includes a housing, a second motor, and a rotating roller. The rotating roller is rotatably mounted inside the housing, and a groove is provided on the top of the rotating roller.

[0017] The rotating roller abuts between the side plates, and there are two side plates arranged in a mirror image inside the housing.

[0018] The second motor, which is fixedly mounted on the side of the housing, is used to drive the rotating roller to rotate, and the rotating roller is used to drive the groove to rotate circumferentially.

[0019] The technical effects achieved by this utility model are as follows:

[0020] This invention utilizes a heating box installed at the top of a base. A fan draws in fresh air from outside, which is then heated and fed into a hollow stirring rod via a connecting pipe and connector. The hollow stirring rod has several through holes on its surface, allowing hot air to escape and preheat the plastic granules. Simultaneously, a first motor is installed at the top of the barrel, and its output shaft drives a transmission gear, which in turn drives the stirring rod via a meshing driven gear. The connector ensures that the connecting pipe does not interfere with the stirring rod's rotation. Therefore, the stirring rod provides efficient and uniform preheating of the plastic granules inside the barrel, thereby improving the efficiency of subsequent plastic extrusion.

[0021] This invention utilizes a feeding mechanism installed at the bottom of the barrel, with side plates installed in the housing of the feeding mechanism and a rotating roller abutting between the side plates. Preheated plastic granules fall onto the surface of the rotating roller and enter a groove. Since the rotating roller can rotate under the action of a second motor, it can deliver the plastic shell in the groove to the bottom of the housing. By controlling the speed of the second motor, a quantitative feeding of plastic granules can be achieved, thus avoiding excessive feeding into the extruder, which would cause residue inside the extruder after plastic extrusion molding and affect subsequent use. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the overall installation structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the hot air mechanism installation structure in this utility model;

[0024] Figure 3 This is a schematic diagram of the material cylinder structure in this utility model;

[0025] Figure 4 This is a cross-sectional schematic diagram of the shell structure in this utility model;

[0026] Figure 5 This is a schematic diagram showing the disassembled structure of the side plate and the rotating roller in this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Base; 2. Hot air mechanism; 21. Heating box; 22. Exhaust fan; 23. Connecting pipe; 24. Connector; 3. Frame; 4. Material cylinder; 5. Pre-treatment mechanism; 51. First motor; 52. Transmission gear; 53. Driven gear; 54. Stirring rod; 6. Support; 7. Extruder; 8. Feeding mechanism; 81. Housing; 82. Second motor; 83. Side plate; 84. Rotary roller; 85. Groove. Detailed Implementation

[0029] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0030] like Figure 1-5 As shown, a high-temperature resistant plastic extrusion molding device includes a base 1, a material cylinder 4 is fixedly connected to the top of the base 1 via a frame 3, and a bracket 6 is provided on the top of the base 1 for fixing and installing an extruder 7.

[0031] A hot air mechanism 2 is fixedly installed on one side of the frame 3, a pretreatment mechanism 5 is fixedly installed on the top of the barrel 4, and the bottom of the barrel 4 is fixedly connected to the extruder 7 through a feeding mechanism 8.

[0032] The hot air mechanism 2 includes a heating box 21 and an exhaust fan 22. The top of the heating box 21 is fixedly connected to a connecting pipe 23 via the exhaust fan 22, and one end of the connecting pipe 23 is fixedly connected to a connector 24.

[0033] The pretreatment mechanism 5 includes a first motor 51, a transmission gear 52, and a stirring rod 54. The first motor 51 drives the transmission gear 52 to rotate through its output shaft. The transmission gear 52 meshes with the driven gear 53 and drives the stirring rod 54 to rotate.

[0034] See attached document Figure 1 , Figure 2 and Figure 3 In this embodiment, the heating box 21 is fixedly installed between the frame 3 and the base 1, and the top of the heating box 21 is fixedly installed with an exhaust fan 22.

[0035] In the above embodiment, an electric heating wire is installed inside the heating box 21. When the electric heating wire is activated, the gas can be heated by the exhaust fan 22 and then sent into the interior of the connecting pipe 23 through the exhaust fan 22, and then into the stirring rod 54 through the connecting pipe 23.

[0036] Furthermore, the exhaust fan 22 can be connected to the connector 24 via the connecting pipe 23, and the bottom of the connector 24 is rotatably mounted on the top of the stirring rod 54 via a bearing. Therefore, the position of the connector 24 can be limited by the connecting pipe 23, and the connecting pipe 23 will not be affected when the stirring rod 54 rotates.

[0037] Furthermore, since the driven gear 53 is welded to the surface of the stirring rod 54, and the stirring rod 54 is a hollow structure with several through holes on its surface, when hot air enters the stirring rod 54, it can be sent into the interior of the material cylinder 4 through the through holes, thereby preheating the plastic particles. The stirring rod 54 can rotate inside the material cylinder 4 under the action of the first motor 51, the transmission gear 52, and the driven gear 53, thereby making the heating of the plastic particles more uniform.

[0038] See attached document Figure 2 and Figure 3 In this embodiment, the first motor 51 is fixedly installed on the top of the material cylinder 4, and its output shaft is rotatably installed with the partition inside the material cylinder 4.

[0039] In the above embodiment, a partition is welded inside the material cylinder 4, and a through hole is opened on the surface of the partition. At the same time, a feed hopper is installed on the top of the material cylinder 4, so plastic particles can be fed into the inside of the material cylinder 4 through the feed hopper and the partition. Meanwhile, since a bearing sleeve is installed between the partition and the stirring rod 54, the stirring rod 54 can rotate inside the partition.

[0040] See attached document Figure 2 and Figure 5 In this embodiment, the feeding mechanism 8 includes a housing 81, a second motor 82, and a rotating roller 84. The rotating roller 84 is rotatably mounted inside the housing 81, and a groove 85 is provided on the top of the rotating roller 84.

[0041] In the above embodiment, the position of the rotating roller 84 can be limited by the side plate 83, and the surface of the rotating roller 84 is arranged with multiple grooves 85. Therefore, the plastic particles are rotated by the grooves 85, and the plastic particles higher than the grooves 85 can be scraped off under the action of the side plate 83.

[0042] Specifically, the roller 84 abuts between the side plates 83, and there are two side plates 83, which are arranged in a mirror image inside the housing 81.

[0043] More specifically, the second motor 82 fixedly installed on the side of the housing 81 can drive the rotating roller 84 to rotate between the side plates 83. Since the inside of the groove 85 contains plastic granules, the rotating roller 84 can drive the groove 85 to rotate circumferentially when it rotates, and quantitatively deliver the plastic granules to the bottom of the housing 81.

[0044] The working principle of this utility model is as follows: plastic granules are fed into the feeding hopper and then into the material cylinder 4. Since an electric opening and closing door is provided between the bottom of the material cylinder 4 and the feeding mechanism 8, the plastic granules can remain inside the material cylinder 4. The first motor 51 is started to drive the transmission gear 52 to rotate. Since the transmission gear 52 meshes with the driven gear 53 and the driven gear 53 is fixedly connected to the stirring rod 54, the stirring rod 54 can rotate. The exhaust fan 22 is started to allow fresh air from the outside to enter the heating box 21 and be heated. The air is then sent into the stirring rod 54 through the connecting pipe 23 and the connector 24. Since the stirring blades of the stirring rod 54 have through holes, hot air can be sent into the material cylinder 4 to preheat the plastic granules.

[0045] Once the processing is complete, the plastic granules can be allowed to enter the interior of the housing 81 by opening the electric opening and closing door and fall onto the surface of the rotating roller 84. By starting the second motor 82, the rotating roller 84 is driven to rotate, so that the plastic granules falling into the groove 85 can be scraped off by the side plate 83 and sent into the interior of the housing 81. Since there is a pipe installed between the housing 81 and the extruder 7, the preheated plastic granules can be quantitatively fed into the extruder 7, and then the plastic is extruded and shaped by the extruder 7.

[0046] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A high-temperature resistant plastic extrusion molding apparatus, characterized in that, include: The base (1) has a material cylinder (4) fixedly connected to its top via a frame (3), and a bracket (6) is provided on the top of the base (1) for fixing and installing the extruder (7). A hot air mechanism (2) is fixedly installed on one side of the frame (3), a pretreatment mechanism (5) is fixedly installed on the top of the barrel (4), and the bottom of the barrel (4) is fixedly connected to the extruder (7) through a feeding mechanism (8). The hot air mechanism (2) includes a heating box (21) and an exhaust fan (22). The top of the heating box (21) is fixedly connected to a connecting pipe (23) via the exhaust fan (22). One end of the connecting pipe (23) is fixedly connected to a connector (24). The pretreatment mechanism (5) includes a first motor (51), a transmission gear (52) and a stirring rod (54). The first motor (51) drives the transmission gear (52) to rotate through its output shaft. The transmission gear (52) meshes with the driven gear (53) and drives the stirring rod (54) to rotate.

2. The high-temperature resistant plastic extrusion molding apparatus according to claim 1, characterized in that: The heating box (21) is fixedly installed between the frame (3) and the base (1), and an exhaust fan (22) is fixedly installed on the top of the heating box (21).

3. The high-temperature resistant plastic extrusion molding apparatus according to claim 1, characterized in that: The connecting pipe (23) is used to fix the exhaust fan (22) to the connector (24), which is rotatably mounted on the top of the stirring rod (54).

4. The high-temperature resistant plastic extrusion molding apparatus according to claim 1, characterized in that: The driven gear (53) is welded to the surface of the stirring rod (54), which is a hollow structure with several through holes on its surface.

5. The high-temperature resistant plastic extrusion molding apparatus according to claim 1, characterized in that: The first motor (51) is fixedly installed on the top of the material cylinder (4), and its output shaft is rotatably installed with the partition inside the material cylinder (4).

6. The high-temperature resistant plastic extrusion molding apparatus according to claim 1, characterized in that: The feeding mechanism (8) includes a housing (81), a second motor (82) and a rotating roller (84). The rotating roller (84) is rotatably mounted inside the housing (81), and a groove (85) is provided on the top of the rotating roller (84).

7. The high-temperature resistant plastic extrusion molding apparatus according to claim 6, characterized in that: The roller (84) abuts between the side plates (83), two of which are arranged in a mirror image inside the housing (81).

8. The high-temperature resistant plastic extrusion molding apparatus according to claim 6, characterized in that: The second motor (82) fixedly installed on the side of the housing (81) is used to drive the rotating roller (84) to rotate, and the rotating roller (84) is used to drive the groove (85) to rotate circumferentially.

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