Preheating device for modified plastic production

Abstract

The utility model relates to the technical field of plastic processing, in particular to a preheating device for modified plastic production, which comprises a heat release component, a preheating component and a circulating component, the preheating assembly comprises a preheating barrel and a rotating motor mounted at the top of the preheating barrel; an output shaft of the rotating motor is fixedly connected with a rotating shaft, the rotating shaft is fixedly provided with a spiral plate, and the rotating shaft is fixedly connected with a heat release rod; and the interiors of the rotating shaft and the heat release rod are hollow. According to the preheating device for modified plastic production, air is blown into the preheating barrel through the heat release rod, heat is released from the center of the interior of the preheating barrel, plastic particles are heated from the interior of the preheating barrel, meanwhile, the spiral plate is driven by the rotating shaft to rotate, and the plastic particles are turned from the bottom to the top; and uneven heating of the plastic particles during heating caused by the fact that the modified plastic particles are located at the same position for a long time is prevented.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to a preheating device for the production of modified plastics. Background Technology

[0002] Preheating modified plastics is an important processing step, usually performed before molding. The main purpose of preheating is to bring the modified plastics to a suitable processing temperature to improve their fluidity and moldability, while reducing internal stress and deformation during molding. Currently, the technology for preheating modified plastics mainly involves heating from the outer wall of the preheating tank. This heating method cannot uniformly heat the inside of the modified plastic particles.

[0003] The utility model application with application number CN202321452754.1 provides a preheating device for recycled plastic granules, comprising: a preheating component, the preheating component including a preheating barrel, multiple support legs installed at the bottom of the preheating barrel, a heating coil installed inside the preheating barrel, a heating motor installed on one side surface of the preheating barrel, a protective shell installed on the top of the preheating barrel, and a purification column installed inside the protective shell. In this solution, plastic granules are poured into the preheating barrel through a feeding hopper, and then a servo motor is started. The output shaft of the servo motor rotates, driving the stirring shaft to rotate. The rotation of the stirring shaft drives the connecting rod and stirring blade to rotate, thereby driving the plastic granules to rotate. At this time, the preheating barrel is heated under the action of the heating motor and the heating coil. When the plastic granules come into contact with the preheating barrel, the plastic granules will be heated. After heating is completed, the feeding plate can be moved on the surface of the connecting plate to feed the plastic granules.

[0004] The application heats the preheating barrel wall by wrapping a heating coil and a heating motor around the outer wall of the preheating barrel. This heating method only heats the barrel wall and cannot effectively heat the plastic particles in the center of the preheating barrel evenly.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a preheating device for modified plastic production that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of this utility model, the following technical solution is adopted:

[0008] A preheating device for modified plastics production includes: a heat release component, a preheating component, and a circulation component;

[0009] Preheating assembly: includes a preheating tank and a rotating motor mounted on top of the preheating tank;

[0010] A rotating shaft is fixedly connected to the output shaft of a rotating motor, a spiral plate is fixedly installed on the rotating shaft, and a heat-dissipating rod is fixedly connected to the rotating shaft.

[0011] Both the rotating shaft and the heat dissipation rod are hollow inside.

[0012] The heat-releasing rod has multiple heat-releasing holes, and the diameter of the heat-releasing holes is smaller than the diameter of the plastic particles.

[0013] Furthermore, the circulation component includes an air intake component and a filter component installed at the bottom of the air intake component.

[0014] Furthermore, the suction assembly includes a rotating fan, a pressurizer for pressurizing the air blown out by the rotating fan, a sliding plate for blocking the pressurized air, a sliding shaft sleeved on the sliding plate, and a spring fixedly installed on the sliding plate.

[0015] Furthermore, the filter assembly includes a filter box, a filter plate, and an air outlet; the filter plate is fixedly installed inside the filter box, and the air outlet is fixedly installed in the filter box.

[0016] Furthermore, a motor is fixedly installed at the central shaft of the rotating fan to drive the fan to rotate.

[0017] Furthermore, the air outlet is connected to the rotating shaft.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a preheating device for the production of modified plastics. By blowing air into the preheating barrel through a heat-releasing rod, heat is released from the center of the preheating barrel, so that the plastic particles are heated from the inside of the preheating barrel. At the same time, the rotating shaft drives the spiral plate to rotate, so that the plastic particles are turned from the bottom to the top, preventing the modified plastic particles from being in the same position for a long time, which would cause uneven heating of the plastic particles during heating. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the structure of a preheating device for modified plastic production according to this utility model;

[0021] Figure 2 This is a cross-sectional view of a preheating device for modified plastic production according to this utility model;

[0022] Figure 3 This utility model relates to a preheating device for the production of modified plastics. Figure 2 A sectional view;

[0023] Figure 4This utility model relates to a preheating device for the production of modified plastics. Figure 3 Enlarged view of point A in the middle.

[0024] In the diagram: 1. Heat release component; 2. Preheating component; 21. Rotating motor; 22. Preheating tank; 221. Rotating shaft; 222. Heat release rod; 223. Spiral plate; 3. Circulation component; 31. Suction component; 311. Rotating fan; 312. Pressure booster; 313. Sliding plate; 314. Sliding shaft; 315. Spring; 32. Filter component; 321. Filter box; 322. Filter plate; 323. Air outlet. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there may be an intervening mechanism at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0027] like Figures 1 to 4 As shown, a preheating device for modified plastic production includes: a heat release component 1, a preheating component 2, and a circulation component 3.

[0028] The heat release component 1 is equipped with a protective shell on its side. The protective shell serves to keep the preheating component 2 warm and simultaneously delivers hot air to the bottom of the protective shell through the heat release component 1. The heat release component 1 is preferably a hot air blower.

[0029] Preheating component 2 includes a preheating tank 22 and a rotating motor 21 mounted on top of the preheating tank 22. The output shaft of the rotating motor 21 is fixedly connected to a rotating shaft 221, and the rotating shaft 221 is fixedly connected to a spiral plate 223. The rotating shaft 221 is also fixedly connected to a heat-releasing rod 222. Both the rotating shaft 221 and the heat-releasing rod 222 are hollow and interconnected. Hot air is filled into the rotating shaft 221 through the heat-releasing component 1 and discharged through the heat-releasing rod 222. The heat-releasing rod 222 has multiple heat-releasing holes with a diameter smaller than that of the plastic particles to prevent plastic particles from falling into the heat-releasing rod 222 and clogging it.

[0030] The rotating motor 21 drives the rotating shaft 221 to rotate, and simultaneously drives the spiral plate 223 and the heat-releasing rod 222 to rotate synchronously. The heat-releasing rod 222 is in close contact with the surface of the spiral plate 223. When the rotating motor 21 drives the spiral plate 223 to rotate clockwise, the bottom opening of the spiral plate 223 faces the plastic particles, scooping the plastic particles into the bottom of the spiral plate 223. The plastic particles move from bottom to top through the rotation of the spiral plate 223 and the pushing of the heat-releasing rod 222, so that every part of the plastic particles from bottom to top can be evenly heated by the heat-releasing rod 222, thereby transferring heat to the plastic particles inside the preheating tank 22 and transferring heat from the inside of the preheating tank 22 to the outside. Similarly, when the rotating motor 21 rotates in reverse, it transports the plastic particles from the top to the bottom, with basically the same effect.

[0031] As a further addition, the heat-releasing rod 222 rotates together with the spiral plate 223 as it rotates, so that the spiral plate 223 can stir the plastic particles while turning them over, increasing the gaps between the plastic particles, so that the heat-releasing rod 222 can blow air and release heat to the plastic particles while rotating inside them.

[0032] During the preheating process, the plastic particles generate waste gas through heating. The waste gas is recycled and reused through the circulation component 3 to prevent excessive accumulation of waste gas from affecting the preheating environment. The waste gas will gradually accumulate on the top of the preheating tank 22 as the plastic particles are heated. In order to prevent the waste gas generated inside from affecting the quality of the plastic particles in the preheating tank 22, the circulation component 3 is set to recycle the waste gas.

[0033] Circulation component 3 includes a suction component 31 and a filter component 32 installed at the bottom of the suction component 31. The suction component 31 includes a rotating fan 311, a motor fixedly installed at the central shaft of the rotating fan 311 to drive the rotating fan 311 to rotate, a pressurizer 312 to pressurize the air blown out by the rotating fan 311, a sliding plate 313 to block the pressurized air, a sliding shaft 314 sleeved on the sliding plate 313, a spring 315 fixedly connected to the sliding plate 313, and an air inlet installed at the bottom of the sliding plate 313. Fan 311 collects the exhaust gas gathered at the top of preheating tank 22, and pressurizes the exhaust gas through pressurizer 312, so that the exhaust gas can push sliding plate 313, causing sliding plate 313 to move along sliding shaft 314 until sliding plate 313 moves to the limit distance, so that exhaust gas is discharged through air inlet, which facilitates subsequent recycling of exhaust gas. After exhaust gas is discharged, sliding plate 313 returns to the initial position under the squeezing force of spring 315 to block air inlet, prevent external bacteria from falling into air inlet and prevent it from affecting subsequent filtration of exhaust gas.

[0034] The filter assembly 32 includes a filter box 321, a filter plate 322, and an air outlet 323. The filter plate 322 is fixedly installed inside the filter box 321, and the air outlet 323 is fixedly installed on the outer wall of the filter box 321. A one-way valve is installed inside the air outlet 323. The filter box 321 is exposed by the opening of the filter box 321 through the sliding plate 313, and the waste gas enters the filter box 321 and is filtered by the filter plate 322. At the same time, the waste gas is connected to the rotating shaft 221 through the air outlet 323, so that the purified waste gas re-enters the heat release rod 222 through the one-way valve to preheat the plastic particles. The heat release assembly 1 outputs a certain amount of hot gas into the rotating shaft 221 every once in a while. The purified waste gas is output to the rotating shaft 221 in advance after being filtered, so that the energy output required by the heat release assembly 1 into the rotating shaft 221 is reduced, which helps to reduce the energy consumption required by the heat release assembly 1 and also reduces the waste gas emission.

[0035] Working principle:

[0036] Air is blown into the preheating tank 22 by the heat-releasing rod 222, and heat is released from the center of the preheating tank 22, so that the plastic particles are heated from the inside of the preheating tank 22. At the same time, the spiral plate 223 is rotated by the rotating shaft 221, so that the plastic particles are turned from bottom to top, preventing the modified plastic particles from staying in the same position for a long time, which would cause uneven heating of the plastic particles. The circulation component 3 is also set up to reduce energy loss and allow the exhaust gas to be recycled after filtration.

[0037] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A preheating device for modified plastics production, characterized in that, include: Heat dissipation components, preheating components, and circulation components; The preheating assembly includes a preheating tank and a rotating motor mounted on top of the preheating tank. The output shaft of the rotating motor is fixedly connected to a rotating shaft, the rotating shaft is fixedly mounted with a spiral plate, and the rotating shaft is fixedly connected to a heat-releasing rod. Both the rotating shaft and the heat-dissipating rod are hollow inside. The heat-releasing rod has multiple heat-releasing holes, and the diameter of the heat-releasing holes is smaller than the diameter of the plastic particles.

2. The preheating device for modified plastics production as described in claim 1, characterized in that, The circulation component includes an air intake component and a filter component installed at the bottom of the air intake component.

3. The preheating device for modified plastic production as described in claim 2, characterized in that, The suction assembly includes a rotating fan, a pressurizer that pressurizes the air blown out by the rotating fan, a sliding plate that blocks the pressurized air, a sliding shaft sleeved on the sliding plate, and a spring fixedly installed on the sliding plate.

4. The preheating device for modified plastics production as described in claim 2, characterized in that, The filter assembly includes a filter box, a filter plate, and an air outlet; the filter plate is fixedly installed inside the filter box, and the air outlet is fixedly installed in the filter box.

5. The preheating device for modified plastics production as described in claim 3, characterized in that, A motor is fixedly installed at the central shaft of the rotating fan to drive the fan to rotate.

6. The preheating device for modified plastics production as described in claim 4, characterized in that, The air outlet is connected to the rotating shaft.

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