Bubble eliminating device for plastic products
By using a hot air blower and a stirring device in a plastic product bubble elimination device to double dry plastic particles, the problem of bubble elimination of plastic particles in the continuous injection molding process in the existing technology is solved, and efficient continuous feeding and product quality improvement are achieved.
Patent Information
- Application Number
- CN202422819645.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The existing technology is unable to effectively eliminate bubbles during the continuous injection molding process of plastic particles, and is unable to add or remove dried plastic particles during the processing process.
A bubble elimination device for plastic products was designed. A hot air blower was used to input hot air through the air inlet pipe to perform double drying on the plastic particles in the raw material tank and the drying tube. The particles were stirred by stirring blades and stirring rods to ensure uniform drying. The dried particles were directly fed into the injection molding machine through the feeding mechanism.
It realizes efficient and continuous drying of plastic particles, ensures continuous feeding of injection molding machines, and improves the quality and production efficiency of plastic products.
Smart Images
Figure CN223339774U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of plastic product production, in particular to a bubble elimination device for plastic products. Background Art
[0002] Unless the design effect is to be achieved, bubbles are not allowed in plastic products. Therefore, bubbles in products during injection molding are a common problem that needs to be solved. Excessive water content in plastic raw materials is one of the important reasons for the presence of bubbles in injection molded products. Plastic raw material particles will absorb moisture in the air during storage. In order to ensure the quality of plastic products, the plastic raw material particles need to be dried before entering the injection molding machine to achieve the purpose of defoaming.
[0003] After searching, the patent with announcement number CN220614628U discloses a plastic pellet drying device for plastic production, which uses a motor to drive a bidirectional screw to rotate in a box body, and at the same time, a slider on the outer wall of the bidirectional screw is driven to move left and right. When the slider moves, the gear meshing connection rack connected to the outer wall of the connecting pipe below is driven to operate, so that the agitator rotates and stirs normally, so that the plastic particles are broken up in it to prevent them from agglomerating. At the same time, the blower above dries through the blowing hole of the agitator, completing the drying while stirring, achieving the effect of sufficient drying.
[0004] Although the above solution can fully dry the plastic particles, the device can only dry the plastic particles in batches. It is impossible to add dried plastic particles during the treatment process, or remove the dried plastic particles during the treatment process. The injection molding production of plastic products is mostly continuous, and the plastic particle raw materials need to be continuously fed into the injection molding machine. For this reason, we propose a plastic product bubble elimination device. Utility Model Content
[0005] The purpose of the present invention is to provide a device for eliminating bubbles in plastic products to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] The vents are connected to the top of the hopper and are provided with a cover for conveying air to the hopper, the cover is ...
[0008] As a further solution of the present invention: the portion of the raw material tank located inside the first cover shell is funnel-shaped.
[0009] As a further solution of the present invention: the angle between the central axis of the second air inlet and the central axis of the drying tube is 30-50°.
[0010] As a further solution of the present invention: a first reduction motor is fixedly connected to the top of the cover plate, and the output shaft of the first reduction motor is fixedly connected to a rotating shaft after passing through the cover plate, and the bottom end of the rotating shaft extends from the raw material tank into the drying tube, and the outer wall of the rotating shaft located in the raw material tank is fixedly connected to a plurality of stirring blades, and the outer wall of the rotating shaft located in the drying tube is fixedly connected to a plurality of stirring rods.
[0011] As a further solution of the present invention: the feeding mechanism includes a feeding barrel, and the outer wall of the feeding barrel is respectively provided with a feed port and a discharge port near both ends. The feed port of the feeding barrel is fixedly connected to the bottom end of the drying tube, and an auger is rotatably connected inside the feeding barrel. The end face of the feeding barrel is fixedly connected to a second reduction motor, and the output shaft of the second reduction motor is fixedly connected to one end of the auger.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] In the present invention, after the hot air blower is started to input hot air into the first and second cover shells through the first air inlet pipes and the second air inlet pipes, the hot air in the first cover shell will enter the bottom of the raw material tank through the first air inlet hole to perform hot air drying on the plastic particles in the raw material tank, and the hot air in the second cover shell will enter the drying pipe through the second air inlet hole to perform secondary drying on the plastic particles in the drying pipe, thereby ensuring the drying effect of the plastic particles. The plastic particles output from the drying pipe can be directly input into the injection molding machine by the feeding mechanism, thereby realizing continuous feeding of the injection molding machine and being more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural diagram of a bubble elimination device for plastic products.
[0015] Figure 2 This is a structural diagram of a bubble elimination device for plastic products.
[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0017] Among them, the raw material tank 1, the cover plate 2, the feeding port 3, the blocking cover 4, the first reduction motor 5, the rotating shaft 6, the stirring blade 7, the first cover 8, the first air inlet 9, the first air inlet pipe 10, the drying pipe 11, the stirring rod 12, the second air inlet 13, the second cover 14, the second air inlet pipe 15, the induced draft fan 16, the feed barrel 17, the second reduction motor 18, and the auger 19. DETAILED DESCRIPTION
[0018] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.
[0019] See also Figures 1 to 3 In the embodiment of the present invention, a bubble elimination device for plastic products includes a raw material tank 1, a cover plate 2 is fixedly installed at the top opening of the raw material tank 1, a feeding port 3 is provided on the cover plate 2, a blocking cover 4 is detachably installed at the opening of the feeding port 3, and the feeding port 3 can also be connected to the feeding mechanism through a pipeline, an induced draft fan 16 is fixedly installed on the top of the cover plate 2, the air inlet end of the induced draft fan 16 is located in the raw material tank 1, the outer wall of the raw material tank 1 is fixedly sleeved with a first cover shell 8, and the outer wall of the raw material tank 1 located in the first cover shell 8 is penetrated by a plurality of first cover shells. An air inlet hole 9, a first air inlet pipe 10 is fixedly penetrated on the outer wall of the first cover shell 8, a drying pipe 11 is fixedly connected to the bottom end of the raw material tank 1 after passing through the first cover shell 8, a second cover shell 14 is fixedly sleeved on the outer wall of the drying pipe 11, a plurality of second air inlet holes 13 are penetrated on the outer wall of the drying pipe 11 located in the second cover shell 14, a second air inlet pipe 15 is fixedly penetrated on the outer wall of the second cover shell 14, the air inlet ends of the first air inlet pipe 10 and the second air inlet pipe 15 are connected to the hot air blower through a pipeline, and the bottom end of the drying pipe 11 is connected to a feeding mechanism.
[0020] By adopting the above-mentioned scheme, the present invention is used. After the plastic granules are poured into the raw material tank 1, the hot air blower is started to input hot air into the first cover shell 8 and the second cover shell 14 through the first air inlet pipe 10 and the second air inlet pipe 15. The hot air in the first cover shell 8 will enter the bottom of the raw material tank 1 through the first air inlet hole 9 to perform hot air drying on the plastic granules in the raw material tank 1. The hot air in the second cover shell 14 will enter the drying pipe 11 through the second air inlet hole 13 to perform secondary drying on the plastic granules in the drying pipe 11, thereby ensuring the drying effect of the plastic granules. The plastic granules output from the drying pipe 11 can be directly input into the injection molding machine by the feeding mechanism, thereby realizing continuous feeding of the injection molding machine and being more convenient to use.
[0021] In addition, by setting up the induced draft fan 16, starting the induced draft fan 16 to extract the air in the raw material tank 1 outward, it can play a drainage role on the air in the raw material tank 1, so that the air input into the raw material tank 1 and the drying pipe 11 by the hot air blower can be discharged from the induced draft fan 16, avoiding the hot air from being discharged from the feeding mechanism or the feeding port 3. At the same time, the hot air flowing upward in the drying pipe 11 can enter the raw material tank 1, so as to improve the drying effect of the plastic particles in the raw material tank 1.
[0022] Specific combination Figure 2 In one embodiment of the present invention, the portion of the raw material tank 1 located inside the first cover shell 8 is funnel-shaped to facilitate the flow of plastic particles in the raw material tank 1 into the drying tube 11 .
[0023] Specific combination Figure 3 In one embodiment of the present invention, the angle between the central axis of the second air inlet 13 and the central axis of the drying tube 11 is 30-50 degrees, so as to guide the hot air input into the drying tube 11 and make the hot air flow upward along the drying tube 11 better.
[0024] Specific combination Figure 2 In one embodiment of the present utility model, a first reduction motor 5 is fixedly connected to the top of the cover plate 2, and the output shaft of the first reduction motor 5 passes through the cover plate 2 and is fixedly connected to a rotating shaft 6. The bottom end of the rotating shaft 6 extends from the raw material tank 1 into the drying pipe 11, and the outer wall of the rotating shaft 6 located in the raw material tank 1 is fixedly connected to a plurality of stirring blades 7, and the outer wall of the rotating shaft 6 located in the drying pipe 11 is fixedly connected to a plurality of stirring rods 12.
[0025] Starting the first reduction motor 5 drives the rotating shaft 6 to rotate, which can drive the stirring blade 7 to stir the plastic particles in the raw material tank 1, and at the same time drive the stirring rod 12 to stir the plastic particles in the drying tube 11, so that the plastic particles can be more evenly contacted with the hot air, thereby ensuring the uniformity of the drying of the plastic particles.
[0026] Specific combination Figure 1 and Figure 2 In one embodiment of the present utility model, the feeding mechanism includes a feeding cylinder 17, and the outer wall of the feeding cylinder 17 is respectively provided with a feed port and a discharge port near both ends. The feed port of the feeding cylinder 17 is fixedly connected to the bottom end of the drying tube 11, and an auger 19 is rotatably connected inside the feeding cylinder 17. The end face of the feeding cylinder 17 is fixedly connected to a second reduction motor 18, and the output shaft of the second reduction motor 18 is fixedly connected to one end of the auger 19.
[0027] The second reduction motor 18 is started to drive the auger 19 to rotate, so that the rotating auger 19 can convey the plastic particles entering the feeding cylinder 17 from the feeding port to the discharging port for discharge.
[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A bubble elimination device for plastic products, characterized by: The invention comprises a raw material tank (1), wherein a cover plate (2) is fixedly installed at the top opening of the raw material tank (1), a feeding port (3) is provided on the cover plate (2), a blocking cover (4) is detachably installed at the opening of the feeding port (3), an induced draft fan (16) is fixedly installed on the top of the cover plate (2), an air inlet end of the induced draft fan (16) is located in the raw material tank (1), a first cover shell (8) is fixedly sleeved on the outer wall of the raw material tank (1), a plurality of first air inlet holes (9) are provided through the outer wall of the raw material tank (1) located in the first cover shell (8), and the outer wall of the first cover shell (8) is fixedly sleeved on the outer wall of the raw material tank (1), A first air inlet pipe (10) is provided through the raw material tank (1), and a drying pipe (11) is fixedly connected to the bottom end of the raw material tank (1) after passing through the first cover shell (8). The outer wall of the drying pipe (11) is fixedly sleeved with a second cover shell (14). The outer wall of the drying pipe (11) located in the second cover shell (14) is provided with a plurality of second air inlet holes (13). A second air inlet pipe (15) is fixedly provided through the outer wall of the second cover shell (14). The air inlet ends of the first air inlet pipe (10) and the second air inlet pipe (15) are both connected to a hot air blower through a pipeline. The bottom end of the drying pipe (11) is connected to a feeding mechanism.
2. The bubble elimination device for plastic products according to claim 1, characterized in that: The portion of the raw material tank (1) located inside the first cover shell (8) is funnel-shaped.
3. The bubble elimination device for plastic products according to claim 1, characterized in that: The included angle between the central axis of the second air inlet (13) and the central axis of the drying tube (11) is 30-50°.
4. The bubble elimination device for plastic products according to claim 1, characterized in that: The top of the cover plate (2) is fixedly connected to a first reduction motor (5); the output shaft of the first reduction motor (5) passes through the cover plate (2) and is fixedly connected to a rotating shaft (6); the bottom end of the rotating shaft (6) extends from the raw material tank (1) into the drying tube (11); the outer wall of the rotating shaft (6) located in the raw material tank (1) is fixedly connected to a plurality of stirring blades (7); the outer wall of the rotating shaft (6) located in the drying tube (11) is fixedly connected to a plurality of stirring rods (12).
5. The bubble elimination device for plastic products according to claim 1, characterized in that: The feeding mechanism includes a feeding cylinder (17), and an outer wall of the feeding cylinder (17) is provided with a feeding port and a discharging port near both ends, respectively. The feeding port of the feeding cylinder (17) is fixedly connected to the bottom end of the drying tube (11), and an auger (19) is rotatably connected inside the feeding cylinder (17). The end face of the feeding cylinder (17) is fixedly connected to a second reduction motor (18), and the output shaft of the second reduction motor (18) is fixedly connected to one end of the auger (19).