Plastic extruder with anti-blocking feed

Abstract

The utility model discloses a kind of feeding anti-blocking plastic extruders, comprising: extruder main body, stirring mechanism and preheating mechanism, stirring mechanism includes fixed on extruder main body and with the cavity of extruder main body communication's material cylinder, fixed in the feeding plate of material cylinder side, fixed in the mounting seat of material cylinder top end, rotationally arranged in mounting seat and into the hollow shaft of material cylinder inner cavity, symmetrically fixed in the stirring rod of hollow shaft end part and fixed in the drive member of material cylinder top end and with hollow shaft connection, material cylinder is communicated with extruder inner cavity, for storing material, and plastic particles are conveniently entered into the cavity of extruder main body, feeding plate is used to facilitate worker to add material into material cylinder, mounting seat is used to install hollow shaft, including annular seat fixed in the top end of material cylinder and bearing symmetrically fixed on the inner wall of annular seat, the inner ring of hollow shaft outer side surface and bearing is fixed, this kind of feeding anti-blocking plastic extruder, with the advantages that feeding blockage is avoided and practicality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic extruders, in particular to a plastic extruder with anti-blocking feeding function. Background Art

[0002] In plastic extrusion molding equipment, the plastic extruder is usually called the main unit, while the matching subsequent plastic extrusion molding equipment is called the auxiliary unit. After more than 100 years of development, plastic extruders have evolved from the original single-screw type to various models such as twin-screw, multi-screw, and even screw-less types. The plastic extruder (main unit) can be matched with various plastic molding auxiliary units for pipes, films, rods, monofilaments, flat filaments, packing belts, extruded nets, plates (sheets), profiled materials, granulation, cable coating and the like, to form various plastic extrusion molding production lines for producing various plastic products.

[0003] The existing plastic extruders mainly have the following drawbacks in the use process: when the feed barrel conveys materials into the plastic extruder, blocking phenomena such as bridging, rat holing and wall adhesion are prone to occur, which affects the production of the plastic extruder and requires manual dredging, which is troublesome, time-consuming and laborious. Therefore, the present application proposes a plastic extruder with anti-blocking feeding function. Contents of the Utility Model

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] For this purpose, the technical solution adopted by the utility model is: a plastic extruder with anti-blocking feeding function, comprising an extruder main body, a stirring mechanism and a preheating mechanism, wherein the stirring mechanism comprises a feed barrel fixed on the extruder main body and communicated with the inner cavity of the extruder main body, a feed plate fixed on one side of the feed barrel, a mounting seat fixed at the top end of the feed barrel, a hollow shaft rotatably arranged in the mounting seat and extending into the inner cavity of the feed barrel, stirring rods symmetrically fixed at the end of the hollow shaft, and a driving member fixed at the top end of the feed barrel and connected with the hollow shaft.

[0006] A cavity communicated with the inner cavity of the hollow shaft is formed inside the stirring rod, and spray holes are arranged in an array on the outer side surface of the stirring rod to communicate with the cavity.

[0007] The preheating mechanism comprises a connecting member fixed at the top end of the feed barrel and rotatably connected with the end of the hollow shaft, an air outlet pipe fixed on one side of the feed barrel and communicated with the inner cavity of the feed barrel, a cylinder fixed on the air outlet pipe, a high-speed fan mounted on the inner wall of the cylinder, electric heating wires fixed on the inner wall of the cylinder, and a delivery pipe connecting the cylinder and the connecting member.

[0008] In a preferred example of the utility model, the mounting seat can be further configured as comprising an annular seat fixed at the top end of the feed barrel and bearings symmetrically fixed on the inner wall of the annular seat, wherein the outer side surface of the hollow shaft is fixed with the inner rings of the bearings.

[0009] In a preferred embodiment, the present invention can be further configured such that the driving component includes a motor fixed to the top of the barrel, a first transmission wheel fixed to the motor shaft, a second transmission wheel fixedly sleeved on the hollow shaft, and a transmission belt with one end sleeved on the first transmission wheel and the other end sleeved on the second transmission wheel.

[0010] In a preferred embodiment, the present invention can be further configured such that the connecting member includes a bracket fixed to the top of the barrel and a sleeve fixed to the bracket, and the top of the hollow shaft is rotatably fitted into the sleeve.

[0011] In a preferred embodiment, the present invention can be further configured such that the stirring rod is attached to the inner wall of the material cylinder.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. In this utility model, a mounting base is fixed at the top of the barrel, and a hollow shaft extending into the barrel is rotatably installed inside the mounting base. A stirring rod is symmetrically fixed at the end of the hollow shaft, and the stirring rod is close to the inner wall of the barrel. A drive component is fixed at the top of the barrel. With the above configuration, when the barrel feeds material into the extruder body, the drive component is activated, driving the hollow shaft to rotate. The rotation of the hollow shaft drives the stirring rod to rotate, stirring the material in the barrel, making the material loose, and avoiding material bridging, rat holes, sticking to the wall and other blockage phenomena in the barrel. This ensures the smooth feeding of material into the extruder body and increases practicality.

[0013] 2. In this utility model, a hollow shaft is provided inside the stirring rod, and multiple spray holes are arranged in an array on the stirring rod. The top of the material cylinder is fixedly connected to the top of the hollow shaft, and an air outlet pipe is fixed to one side of the material cylinder. A cylinder body is fixed to the air outlet pipe, and a high-speed fan and heating wire are installed inside the cylinder body. The cylinder body is connected to a connector via a conveying pipe. With the above configuration, the high-speed fan starts, drawing air out of the material cylinder. After being heated by the heating wire, the air is sent into the hollow shaft through the conveying pipe and connector. The hot air enters the cavity inside the stirring rod through the hollow shaft and is then sprayed upwards through the spray holes to dry and preheat the plastic granules. This prevents the plastic granules from sticking together due to moisture, shortens the subsequent heating time of the plastic granules, and further increases the practical performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of part of the stirring mechanism structure of this utility model; Figure 4This is a cross-sectional schematic diagram of the preheating mechanism of this utility model.

[0015] Figure label: 100. Extruder body; 200. Stirring mechanism; 210. Material cylinder; 220. Feed plate; 230. Mounting base; 231. Annular seat; 232. Bearing; 240. Hollow shaft; 250. Stirring rod; 251. Cavity; 252. Spray nozzle; 260. Driving component; 261. Motor; 262. First transmission wheel; 263. Second transmission wheel; 264. Transmission belt; 300. Preheating mechanism; 310. Connector; 311. Bracket; 312. Sleeve; 320. Air outlet duct; 330. Cylinder body; 340. High-speed fan; 350. Heating wire; 360. Conveying pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0017] Some embodiments of this utility model are described below with reference to the accompanying drawings. Example 1: Combination Figure 1-4 As shown, this embodiment provides a plastic extruder with anti-clogging feed, including: an extruder body 100, a stirring mechanism 200, and a preheating mechanism 300.

[0018] The extruder body 100 is used to extrude plastic, which facilitates subsequent production and processing after material blockage.

[0019] The mixing mechanism 200 includes a barrel 210 fixed on the extruder body 100 and communicating with the inner cavity of the extruder body 100, a feed plate 220 fixed on one side of the barrel 210, a mounting base 230 fixed on the top of the barrel 210, a hollow shaft 240 rotatably disposed in the mounting base 230 and extending into the inner cavity of the barrel 210, a mixing rod 250 symmetrically fixed at the end of the hollow shaft 240, and a drive member 260 fixed on the top of the barrel 210 and connected to the hollow shaft 240.

[0020] The barrel 210 is connected to the inner cavity of the extruder and is used to store materials and facilitate the entry of plastic granules into the inner cavity of the extruder body 100. The feed plate 220 is used to facilitate the addition of materials to the barrel 210 by the worker.

[0021] Mounting base 230 is used to mount hollow shaft 240, including an annular seat 231 fixed to the top of the material cylinder 210 and bearings 232 symmetrically fixed to the inner wall of the annular seat 231. The outer side of hollow shaft 240 is fixed to the inner ring of bearing 232 to ensure that hollow shaft 240 can rotate stably.

[0022] The hollow shaft 240 is used to install the stirring rod 250 and drive the stirring rod 250 to rotate. The stirring rod 250 is fixed to the end of the hollow shaft 240, and the outer side of the stirring rod 250 is close to the inner wall of the barrel 210. With this arrangement, when the drive unit 260 drives the hollow shaft 240 to rotate, the rotation of the hollow shaft 240 drives the stirring rod 250 to rotate, stirring and dispersing the material in the barrel 210, avoiding bridging, rat holes, sticking to the wall and other blockage phenomena in the material in the barrel 210, and ensuring the smooth feeding of the material into the extruder body 100.

[0023] In addition, a cavity 251 communicating with the inner cavity of the hollow shaft 240 is opened inside the stirring rod 250, and spray holes 252 are arranged in an array on the outer surface of the stirring rod 250, communicating with the cavity 251, so that the hot air of the subsequent preheating mechanism 300 can enter the cavity 251 through the hollow shaft 240 and then be sprayed upward through the spray holes 252 to dry and preheat the material.

[0024] The drive unit 260 is used to drive the hollow shaft 240 to rotate. It includes a motor 261 fixed to the top of the material cylinder 210, a first transmission wheel 262 fixed to the shaft of the motor 261, a second transmission wheel 263 fixedly sleeved on the hollow shaft 240, and a transmission belt 264 with one end sleeved on the first transmission wheel 262 and the other end sleeved on the second transmission wheel 263. With this configuration, when the motor 261 starts, it drives the first transmission wheel 262 to rotate. The rotation of the first transmission wheel 262 drives the second transmission wheel 263 to rotate through the transmission belt 264. The rotation of the second transmission wheel 263 drives the hollow shaft 240 to rotate.

[0025] The preheating mechanism 300 is used to dry and preheat the material in the cylinder 210. It includes a connector 310 fixed to the top of the cylinder 210 and rotatably connected to the end of the hollow shaft 240, an air outlet pipe 320 fixed to one side of the cylinder 210 and communicating with the inner cavity of the cylinder 210, a cylinder body 330 fixed on the air outlet pipe 320, a high-speed fan 340 installed on the inner wall of the cylinder body 330, an electric heating wire 350 fixed on the inner wall of the cylinder body 330, and a conveying pipe 360 ​​connecting the cylinder body 330 and the connector 310.

[0026] The connector 310 is used to connect the end of the conveying pipe 360 ​​to the hollow shaft 240. It includes a bracket 311 fixed to the top of the material cylinder 210 and a sleeve 312 fixed to the bracket 311. The bracket 311 is used to fix the sleeve 312. The top of the hollow shaft 240 is rotatably fitted into the sleeve 312, and a sealing ring is provided at the connection between the two. With this setting, when the hollow shaft 240 is rotating, hot air can still be sent into the inner cavity of the hollow shaft 240 through the sleeve 312.

[0027] The air outlet pipe 320 is connected to the inner cavity of the material cylinder 210, which facilitates the air in the material cylinder 210 to be sent out through the air outlet pipe 320. The cylinder body 330 is connected to the inner cavity of the air outlet pipe 320. The high-speed fan 340 is fixed on the inner wall of the cylinder body 330 and is used to drive the air in the material cylinder 210 to flow. The heating wire 350 is used to heat the air passing through the inner cavity of the cylinder body 330 to form a hot airflow. One end of the conveying pipe 360 ​​is connected to the cylinder body 330 and the other end is connected to the sleeve 312, which facilitates the hot air in the cylinder body 330 to be sent into the sleeve 312 through the conveying pipe 360 ​​and then into the hollow shaft 240 through the sleeve 312.

[0028] The working principle and usage process of this utility model are as follows: During use, plastic granules are poured into the feed cylinder 210 through the feed plate 220. The plastic granules are fed into the extruder body 100 through the feed cylinder 210. Simultaneously, the motor 261 starts, driving the first transmission wheel 262 to rotate. The rotation of the first transmission wheel 262 drives the second transmission wheel 263 to rotate via the transmission belt 264. The rotation of the second transmission wheel 263 drives the hollow shaft 240 to rotate, which in turn drives the stirring rod 250 to rotate, stirring the material in the feed cylinder 210, loosening the material, and preventing feed blockage. Simultaneously, the high-speed fan 340 starts, extracting air from the feed cylinder 210, heating it through the heating wire 350, and then sending it into the hollow shaft 240 through the conveying pipe 360 ​​and connecting piece 310. The hot air enters the cavity 251 inside the stirring rod 250 through the hollow shaft 240, and then sprays upwards through the spray nozzle 252 to dry and preheat the plastic granules.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A plastic extruder with anti-clogging feed mechanism, comprising: The extruder body (100), stirring mechanism (200) and preheating mechanism (300) are characterized in that the stirring mechanism (200) includes a barrel (210) fixed on the extruder body (100) and communicating with the inner cavity of the extruder body (100), a feed plate (220) fixed on one side of the barrel (210), a mounting seat (230) fixed on the top of the barrel (210), a hollow shaft (240) rotatably disposed in the mounting seat (230) and extending into the inner cavity of the barrel (210), stirring rods (250) symmetrically fixed at the ends of the hollow shaft (240), and a drive member (260) fixed on the top of the barrel (210) and connected to the hollow shaft (240). The stirring rod (250) has a cavity (251) inside that communicates with the inner cavity of the hollow shaft (240), and spray holes (252) are arranged in an array on the outer surface of the stirring rod (250) and communicate with the cavity (251); The preheating mechanism (300) includes a connector (310) fixed to the top of the cylinder (210) and rotatably connected to the end of the hollow shaft (240), an air outlet pipe (320) fixed to one side of the cylinder (210) and communicating with the inner cavity of the cylinder (210), a cylinder (330) fixed on the air outlet pipe (320), a high-speed fan (340) installed on the inner wall of the cylinder (330), an electric heating wire (350) fixed on the inner wall of the cylinder (330), and a conveying pipe (360) connecting the cylinder (330) and the connector (310).

2. A plastic extruder with anti-clogging feed according to claim 1, characterized in that, The mounting base (230) includes an annular seat (231) fixed to the top of the barrel (210) and bearings (232) symmetrically fixed to the inner wall of the annular seat (231). The outer side of the hollow shaft (240) is fixed to the inner ring of the bearing (232).

3. A plastic extruder with anti-clogging feed according to claim 1, characterized in that, The drive unit (260) includes a motor (261) fixed to the top of the barrel (210), a first drive wheel (262) fixed to the shaft of the motor (261), a second drive wheel (263) fixedly sleeved on the hollow shaft (240), and a drive belt (264) with one end sleeved on the first drive wheel (262) and the other end sleeved on the second drive wheel (263).

4. A plastic extruder with anti-clogging feed according to claim 1, characterized in that, The connector (310) includes a bracket (311) fixed to the top of the barrel (210) and a sleeve (312) fixed to the bracket (311), the top of the hollow shaft (240) being rotatably fitted into the sleeve (312).

5. A plastic extruder with anti-clogging feed according to claim 1, characterized in that, The stirring rod (250) is attached to the inner wall of the barrel (210).

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