Material drying mechanism of plastic mixing machine
By setting a trapezoidal box and jet micropores in the discharge pipe of the plastic mixer, using hot air to quickly dry ABS plastic particles, and through the coordination of the slide plate and baffle, heat transfer is avoided to the plastic mixer, the problems of low drying efficiency and heat transfer in the prior art are solved, and efficient drying and environmental protection are achieved.
Patent Information
- Application Number
- CN202422053455.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The prior art is difficult to dry ABS plastic particles quickly and efficiently before plastic mixing while avoiding heat transfer to the plastic mixer.
A material drying mechanism of a plastic mixer is designed, including a cutting pipe transformed into a square in the middle and a semicircular on both sides, and a trapezoidal box and jet micropore are arranged in the cutting pipe to dry with hot air. At the same time, through the cooperation of the slide plate and the baffle, the hot air does not enter the mixer.
It realizes rapid and efficient drying of plastic particles, improves the drying effect, and avoids unnecessary heat transfer, protects the environment of the plastic mixer.
Smart Images
Figure CN222972563U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of plastic particle drying, and particularly relates to a material drying mechanism for a plastic mixer. Background Art
[0002] Before plastic particles are mixed, processed, etc., they need to be dried first. Especially for some plastics with high water absorption, such as ABS plastic particles.
[0003] Due to the high sensitivity of ABS plastic particles to moisture, if the ABS plastic particles are not dried before processing, the surface of the workpiece is likely to have patterns or unevenness. Moreover, when the ABS plastic particles are heated, the viscosity increases. If there is more moisture, the ABS plastic particles will easily adsorb and stick together. This is also an important reason why the mixing environment needs to be maintained at normal temperature or even low temperature in the plastic mixing process.
[0004] In addition, if plastic particles are in a high-temperature environment for a long time, it will not only easily lead to an increase in viscosity, but also may release some harmful gases. Therefore, the drying of plastic particles needs to ensure an appropriate temperature and make the drying time as short as possible.
[0005] Therefore, before plastic mixing, it is necessary to quickly dry the plastic particles and at the same time ensure that as little heat as possible is transferred to the plastic mixer. Summary of the Utility Model
[0006] In view of this, the purpose of the present utility model is to provide a material drying mechanism for a plastic mixer, so as to solve the technical problem in the prior art of how to quickly and effectively dry plastic particles before mixing and at the same time minimize the heat transfer to the plastic mixer.
[0007] Based on the above purpose, the present utility model provides a material drying mechanism for a plastic mixer, including a feeding pipe for transporting materials into the mixer. A connecting part communicating with the inside of the mixer is provided at the bottom of the feeding pipe. It is characterized in that the drying mechanism further includes:
[0008] A trapezoidal box provided in the feeding pipe. A plurality of trapezoidal boxes are provided and fixedly connected to the inner wall of the feeding pipe. A through port for the material to fall is provided between the outer end of the trapezoidal box and the inner wall of the feeding pipe.
[0009] A slide plate provided below the lowermost through port. The slide plate is slidably connected to the side wall of the feeding pipe. A baffle is fixedly connected to the bottom of the lowermost trapezoidal box, and the slide plate is slidably connected to the baffle.
[0010] Further, the middle of the blanking pipe is square, and the left and right sides are semi-circular. The narrow end of the trapezoidal box is the outer end. The trapezoidal boxes in the blanking pipe are arranged in a staggered manner at equal intervals from top to bottom, and the upper and lower adjacent through openings are respectively located on the left and right sides inside the blanking pipe.
[0011] Further, the upper plate of the trapezoidal box is set as an upper inclined plate, which slopes downward towards the outer end of the trapezoidal box, and the lower plate of the trapezoidal box is a flat plate.
[0012] Further, a number of jet micropores are provided on the upper inclined plate. The jet micropores communicate with the inner cavity of the trapezoidal box, and the orientation of the jet micropores is perpendicular to the upper inclined plate.
[0013] Further, an air inlet pipe is fixedly connected to the side wall of the blanking pipe. The outer end of the air inlet pipe is communicated with an external air pump, and the inner end of the air inlet pipe is communicated with the inner cavity of the trapezoidal box through a connection port.
[0014] Further, a support plate is fixedly connected to the inner wall of the connecting part. The sliding plate is located above the support plate, and a return spring is connected between the sliding plate and the support plate.
[0015] The advantages of the present utility model are as follows: 1. The original feeding pipe of the plastic mixer is transformed into a blanking pipe with a square middle and semi-circular left and right sides. The plastic particles are dried by blowing hot air in the blanking pipe, which is fast and efficient and does not affect the blanking of the blanking pipe.
[0016] 2. A number of trapezoidal boxes are arranged in the blanking pipe. The trapezoidal boxes are arranged in a staggered manner at equal intervals from top to bottom, and the upper plate of the trapezoidal box is set as an upper inclined plate. When the plastic particles fall, they will roll back and forth on the upper inclined plate of the trapezoidal box and finally fall onto the sliding plate. This process enables the plastic particles to come into fuller contact with the hot air and improves the drying effect.
[0017] 3. A number of jet micropores are provided on the upper inclined plate, and the orientation of the jet micropores is perpendicular to the upper inclined plate. Hot air is ejected through these jet micropores, making the hot air more dispersed, and thus enabling the plastic particles to come into fuller contact with the hot air. At the same time, the direction of the hot air blown out is not vertically upward but obliquely upward, so that the plastic particles can roll more smoothly on the upper inclined plate.
[0018] 4. A sliding plate is arranged below the lowermost through opening. The entire blanking pipe is blocked by the sliding plate and the baffle, so that the hot air will not enter the interior of the plastic mixer downward. Due to gravity, the plastic particles will finally fall onto the sliding plate. As the plastic particles accumulate more and more, the gravity becomes greater, causing the sliding plate to slide down and finally expose the gap, enabling the plastic particles to fall smoothly. Description of the Drawings
[0019] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention.
[0021] Figure 2 It is a top view of the device of the present invention.
[0022] Figure 3 It is a schematic diagram of the internal structure principle of the device of the present invention.
[0023] Figure 4 It is a schematic diagram of the structure of the trapezoidal box in the present invention.
[0024] Figure 5 It is a cross-sectional view of the trapezoidal box in the present invention.
[0025] The labels in the figure are: 101, blanking pipe; 102, connecting part; 103, feed inlet; 104, discharge outlet; 105, air inlet pipe; 106, trapezoidal box; 107, upper inclined plate; 108, jet micropores; 109, connection port; 120, baffle; 121, sliding plate; 122, support plate; 123, return spring.
[0026] Specific embodiments and principles
[0027] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the following further details the present invention in combination with specific embodiments.
[0028] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meaning understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not represent any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0029] In the first aspect of the present utility model, as Figure 1 and Figure 2 shown, before the plastic particles enter the plastic mixer, they need to be dried. In order to efficiently and quickly dry the plastic particles and avoid the situation where the plastic particles are in a high-temperature environment for a long time, resulting in an increase in viscosity or even the release of some harmful gases. In this solution, the original feed pipe of the plastic mixer is transformed into a feeding pipe 101 with a square middle and semi-circular sides on both sides.
[0030] Specifically, a connecting part 102 communicating with the inside of the mixer is provided at the bottom of the feeding pipe 101. The top of the feeding pipe 101 is the feed inlet 103, and the bottom of the connecting part 102 is the discharge outlet 104, and the discharge outlet 104 leads directly to the inside of the plastic mixer. After the plastic particles enter the feeding pipe 101 through the feed inlet 103, hot air is blown in the feeding pipe 101 to dry the plastic particles, which is fast and efficient and does not affect the feeding of the feeding pipe 101. Finally, the dried plastic particles enter the plastic mixer through the discharge outlet 104.
[0031] As Figure 3 shown, a component for drying plastic particles is provided inside the feeding pipe 101. Specifically, a number of trapezoidal boxes 106 are provided in the feeding pipe 101. The trapezoidal boxes 106 are fixedly connected to the inner wall of the feeding pipe 101, and a through port for the material to fall is provided between the outer end of the trapezoidal box 106 and the inner wall of the feeding pipe 101. Since the trapezoidal boxes 106 are arranged at equal intervals from top to bottom and staggered, the upper and lower adjacent through ports are respectively located on the left and right sides inside the feeding pipe 101. The upper plate of the trapezoidal box 106 is set as the upper inclined plate 107, and the inclination angle of the upper inclined plate 107 is inclined downward towards the outer end of the trapezoidal box 106, while the lower plate of the trapezoidal box 106 is a flat plate. In this way, when the plastic particles fall, they will roll back and forth on the upper inclined plate 107 of the trapezoidal box 106, which not only allows the plastic particles to contact the hot air more fully, but also increases the drying time of the plastic particles to ensure the drying effect.
[0032] Among them, as Figure 4 and Figure 5 shown, the hot air source is that an air inlet pipe 105 is fixedly connected to the side wall of the feeding pipe 101. The outer end of the air inlet pipe 105 is communicated with an external air pump and a heater, and the inner end of the air inlet pipe 105 is communicated with the inner cavity of the trapezoidal box 106 through a connection port 109. Then, a number of jet micropores 108 are provided on the upper inclined plate 107, and the jet micropores 108 are also communicated with the inner cavity of the trapezoidal box 106.
[0033] Therefore, after the external air pump blows air and heats it, it enters the inner cavity of the trapezoidal box 106 through the air inlet pipe 105. Finally, the hot air is ejected through the jet micropores 108 one by one. By ejecting hot air through these jet micropores 108, the hot air is more dispersed, and thus the plastic particles can contact the hot air more fully.
[0034] Preferably, as Figure 5 shown, the orientation of the jet micropores 108 is perpendicular to the upper inclined plate 107. Therefore, the orientation of the jet micropores 108 is not vertically upward, but obliquely upward, so that the direction of the hot air blown out is not vertically upward, but obliquely upward. These obliquely upward hot air makes the plastic particles not accumulate or stay on the upper inclined plate 107, so that the plastic particles can fall on the upper inclined plate 107 more smoothly.
[0035] On the other hand, as Figure 3 shown, in order to ensure that as little heat as possible is transferred to the plastic mixer. A slide plate 121 is arranged below the lowermost through port, and a baffle 120 is fixedly connected to the bottom of the lowermost trapezoidal box 106. The slide plate 121 is slidably connected to the side wall of the blanking pipe 101, and at the same time, the slide plate 121 is also slidably connected to the baffle 120.
[0036] Preferably, the parts where the slide plate 121 and the baffle 120 are in corresponding contact are both set as arc surfaces inclined downward.
[0037] The entire blanking pipe 101 is blocked by the slide plate 121 and the baffle 120, so that the hot air will not enter the interior of the plastic mixer downward, and the plastic particles will finally fall on the slide plate 121 due to gravity, resulting in more and more plastic particles accumulating. Therefore, the gravity received by the slide plate 121 will become larger and larger, causing the slide plate 121 to slide down and finally separate from the baffle 120, exposing a gap, so that the plastic particles can fall smoothly.
[0038] Among them, if the plastic particles fall in batches periodically, the slide plate 121 will be periodically pressed down to separate from the baffle 120, exposing a gap. If the plastic particles fall continuously, the slide plate 121 will always be pressed in a state of being separated from the baffle 120. Therefore, it is preferred to use batch periodic blanking. Specific implementation manner
[0039] When putting the plastic particles to be mixed and other raw materials into the plastic mixer, put the plastic particles into it through the blanking pipe 101, and it is preferably to use batch periodic blanking.
[0040] Before blanking, first turn on the external air pump and heater. After the external air pump blows air and is heated, it enters the inner cavity of the trapezoidal box 106 through the air inlet pipe 105, and finally the hot air is ejected through the jet micropores 108 one by one. Then start blanking. After the plastic particles enter the blanking pipe 101 through the feed port 103, the material particles will roll back and forth on the upper inclined plate 107 of the trapezoidal box 106 when they fall (not on the upper inclined plate 107 of the same trapezoidal box 106, but on the upper inclined plates 107 of different trapezoidal boxes 106). Also, because the hot air ejected through the jet micropores 108 is very dispersed, it not only allows the plastic particles to come into more sufficient contact with the hot air, but also increases the drying time of the plastic particles to ensure the drying effect.
[0041] After the plastic particles fall onto the slide plate 121 through the lowermost through hole, more and more plastic particles accumulate. Therefore, the gravity received by the slide plate 121 will become greater and greater, causing the slide plate 121 to slide down and finally separate from the baffle 120, exposing a gap to allow the plastic particles to fall smoothly. Finally, the dried plastic particles enter the plastic mixer through the discharge port 104.
[0042] Based on the above, the utility model transforms the original feed pipe of the plastic mixer into a blanking pipe 101 with a square middle and semi-circular sides on both sides, and dries the plastic particles by blowing hot air in the blanking pipe 101, which is fast and efficient and does not affect the blanking of the blanking pipe 101. By arranging a number of trapezoidal boxes 106 in the blanking pipe 101, the trapezoidal boxes 106 are arranged at equal intervals and staggered from top to bottom, and the upper plate of the trapezoidal box 106 is set as the upper inclined plate 107, and a number of jet micropores 108 are provided on the upper inclined plate 107, and the orientation of the jet micropores 108 is perpendicular to the upper inclined plate 107. Hot air is ejected through these jet micropores 108, making the hot air more dispersed, and the plastic particles will roll back and forth on the upper inclined plate 107 of the trapezoidal box 106 when they fall, and finally fall onto the slide plate 121. This process enables the plastic particles to come into more sufficient contact with the hot air and improves the drying effect. At the same time, the direction of the hot air blowing is obliquely upward, so that the plastic particles can roll more smoothly on the upper inclined plate 107. A slide plate 121 is arranged below the lowermost through hole, and the entire blanking pipe 101 is blocked by the slide plate 121 and the baffle 120. Therefore, the hot air will not enter the interior of the plastic mixer downward, and the plastic particles will finally fall onto the slide plate 121 due to gravity. As more and more plastic particles accumulate, the gravity becomes greater and greater, causing the slide plate 121 to slide down and finally expose a gap, enabling the plastic particles to fall smoothly.
[0043] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present utility model is limited to these examples; under the concept of the present utility model, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present utility model as described above, and for the sake of brevity, they are not provided in detail.
[0044] The present utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A material drying mechanism for a plastic mixer, characterized in that: The invention comprises a feed pipe (101) for conveying materials into a mixer, wherein a connection portion (102) communicating with the interior of the mixer is provided at the bottom of the feed pipe (101), and the drying mechanism further comprises: A trapezoidal box (106) is arranged in the feeding tube (101), wherein a plurality of the trapezoidal boxes (106) are provided and are fixedly connected to the inner wall of the feeding tube (101), and a through hole for the material to fall is provided between the outer end of the trapezoidal box (106) and the inner wall of the feeding tube (101); A slide plate (121) is arranged below the lowest opening, and the slide plate (121) is slidably connected to the side wall of the feed tube (101). A baffle plate (120) is fixedly connected to the bottom of the lowest trapezoidal box (106), and the slide plate (121) is slidably connected to the baffle plate (120).
2. The material drying mechanism of a plastic mixer according to claim 1, characterized in that: The middle of the feed tube (101) is square, and the left and right sides are semicircular. The narrow end of the trapezoidal box (106) is the outer end. The trapezoidal boxes (106) in the feed tube (101) are arranged equidistantly from top to bottom, and the upper and lower adjacent openings are respectively located on the left and right sides of the inside of the feed tube (101).
3. A material drying mechanism for a plastic mixer according to claim 1 or 2, characterized in that: The upper plate of the trapezoidal box (106) is set as an upper inclined plate (107), the upper inclined plate (107) is inclined downward toward the outer end of the trapezoidal box (106), and the lower plate of the trapezoidal box (106) is a flat plate.
4. The material drying mechanism of a plastic mixer according to claim 3, characterized in that: The upper inclined plate (107) is provided with a plurality of air-injection micro-holes (108), the air-injection micro-holes (108) are communicated with the inner cavity of the trapezoidal box (106), and the directions of the air-injection micro-holes (108) are perpendicular to the upper inclined plate (107).
5. The material drying mechanism of a plastic mixer according to claim 4, characterized in that: An air intake pipe (105) is fixedly connected to the side wall of the feed pipe (101), the outer end of the air intake pipe (105) is connected to an external air pump, and the inner end of the air intake pipe (105) is connected to the inner cavity of the trapezoidal box (106) through a connecting port (109).
6. The material drying mechanism of a plastic mixer according to claim 1, characterized in that: A support plate (122) is fixedly connected to the inner wall of the connecting portion (102), the sliding plate (121) is located on the support plate (122), and a return spring (123) is connected between the sliding plate (121) and the support plate (122).