Feeding mechanism for plastic particles

Abstract

The utility model discloses a plastic particle feeding mechanism which comprises a hopper and a material pipe, a feeding structure is arranged in the material pipe, the feeding structure is suitable for reducing the falling speed of plastic particles in the material pipe, an opening is formed in the area above the material pipe, an air duct is transversely arranged at the opening, and the air duct is provided with an air outlet. An air source is arranged on the outer side of the air channel, and the air source blows air towards the air channel and acts on the plastic particles with the falling speed slowed down. The arranged feeding structure can effectively reduce the falling speed of the plastic particles, and the plastic particles are beneficial to uniform discharging after being decelerated, so that uniform feeding is ensured; and on the other hand, the feeding structure slows down the falling speed of the plastic particles so that the retention time of the plastic particles in the material pipe can be prolonged, meanwhile, the air source and the air channel can blow away burrs, chippings and dust, and attachments on the surfaces of the plastic particles are reduced.

Description

Technical Field

[0001] This application relates to the field of plastic processing equipment technology, and in particular to a feeding mechanism for plastic granules. Background Technology

[0002] Plastics are materials made from high molecular polymers, characterized by their lightweight, durability, and high plasticity. They are widely used in daily life and industrial fields, such as packaging, containers, electronic products, and building materials. Plastic raw materials undergo key steps such as polymerization and granulation to transform into a granular form, greatly improving the smoothness of the production process. This form not only reduces the risk of blockages and adhesions in production, ensuring the continuous and efficient operation of the production line, but also facilitates quality control, guaranteeing the uniformity and stability of product quality. Furthermore, plastic granules optimize storage and reduce transportation costs, improving ease of use and production efficiency. Therefore, plastics are often used in the form of plastic granules in various processes of transportation and production.

[0003] In some production processes, plastic granules need to be fed. However, due to friction during transportation and the presence of burrs, some impurities may be trapped in the production process. Excessive impurities can affect the quality of the finished product. Therefore, we propose a feeding mechanism for plastic granules that can reduce the adhesion of impurities to a certain extent. Summary of the Invention

[0004] The purpose of this application is to provide a feeding mechanism for plastic granules.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a feeding mechanism for plastic granules, including a hopper and a feed pipe, wherein a feeding structure is provided inside the feed pipe, the feeding structure being adapted to slow down the falling speed of the plastic granules inside the feed pipe, an opening is provided in the upper region of the feed pipe, and an air duct is provided laterally at the opening, an air source is provided outside the air duct, the air source blowing air in the direction of the air duct and acting on the plastic granules whose falling speed has been slowed down.

[0006] As a preferred embodiment, the opening is provided with a baffle, which is arc-shaped and smoothly connected to the inner wall of the feed tube. The orthographic projection of the baffle is circular. The baffle includes a circular outer shell and a plurality of reinforcing ribs disposed inside the outer shell. Multiple reinforcing ribs are horizontally spaced at the top inside the circular outer shell, and one or two are vertically disposed inside the circular outer shell, so as to leave a gap that is smaller at the top and larger at the bottom inside the circular outer shell. The baffle is located in the upper middle part of the feed tube, corresponding to the upper middle part of the feeding structure.

[0007] As a preferred embodiment, the feeding structure is configured as a spiral feeding section, which is either in contact with the inner wall of the material tube or has a gap smaller than the diameter of the plastic particles, and the spiral feeding section does not contact the baffle.

[0008] As a preferred embodiment, a collection box is provided on the outer side of the air duct, the outer side of the collection box has an openable and closable door, and the middle or bottom of the collection box is provided with air vents for ventilation.

[0009] As a preferred embodiment, the bottom of the collection box is hollowed out and a filter screen is installed, and the area where the filter screen is located forms the air vent.

[0010] As a preferred embodiment, the hopper is located in the upper middle part of the material pipe, and is connected to the side of the material pipe for feeding.

[0011] As a preferred embodiment, the feeding mechanism for plastic granules further includes a mounting frame and a fixing part, wherein the mounting frame is provided with multiple mounting parts at intervals, and the multiple mounting parts fix the material tube.

[0012] As a preferred embodiment, the fixing part is located on the outside of the mounting frame, and the fixing part is detachably connected to the wall or other processing equipment.

[0013] As a preferred embodiment, the air source is a fan, which is mounted on the mounting bracket, and the air duct is fixedly installed between the mounting bracket and the material pipe.

[0014] As a preferred embodiment, the feed inlet of the feed pipe is vertically downward, and the air duct is inclined upward, with an inclination angle ranging from 5° to 30°.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] In addition to its basic feeding function, the feeding structure effectively reduces the falling speed of plastic granules. This deceleration promotes uniform discharge, ensuring even feeding. Furthermore, plastic granules are prone to burrs, debris, and other contaminants during production and transportation, which can negatively impact their quality. Since some of these contaminants originate from the transportation stage, the feeding structure's ability to slow the falling speed prolongs the granules' residence time within the feed tube. Simultaneously, the inclusion of an air source and duct allows for direct airflow through the duct, extending the residence time and thus the time the granules are exposed to airflow. This effectively removes burrs, debris, and dust, reducing surface contaminants. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of one embodiment of this application.

[0018] Figure 2 yes Figure 1 The top view in the image.

[0019] Figure 3 yes Figure 2 Sectional view at point AA.

[0020] Figure 4 yes Figure 3 A schematic diagram of the middle part of the structure.

[0021] Figure 5 yes Figure 3 A schematic diagram of the lower half.

[0022] Figure 6 yes Figure 4 Projected view of the central mesh.

[0023] In the diagram: 1. Motor; 2. Hopper; 3. Fixing part; 4. Material pipe; 5. Collection box; 6. Air duct; 7. Mounting part; 8. Screw feeder; 9. Fan; 10. Plastic granules; 11. Debris; 12. Baffle; 13. Outer shell; 14. Reinforcing rib. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] Example:

[0029] Reference Figures 1 to 6 This application proposes a feeding mechanism for plastic granules, including a hopper 2 and a feed pipe 4. A feeding structure is provided inside the feed pipe 4, which is adapted to slow down the falling speed of the plastic granules 10 inside the feed pipe 4 (i.e., the feed pipe 4 is designed to face downwards). An opening is provided in the upper region of the feed pipe 4, and an air duct 6 is horizontally arranged at the opening. An air source is provided outside the air duct 6, blowing air towards the air duct 6 and acting on the plastic granules 10 whose falling speed has been slowed down. When the hopper 2 and feed pipe 4 directly cooperate to feed the plastic granules 10, it is difficult to directly control the feeding speed, which can easily lead to uneven feeding. The feeding structure, in addition to having basic feeding functions, can also effectively reduce the falling speed of the plastic granules 10. The decelerated plastic granules 10 are conducive to uniform discharge, thereby ensuring uniform feeding. On the other hand, plastic granules 10 are prone to generating burrs, fine debris, and other attachments during the production process, and are also prone to generating dust and impurities during transportation. These attachments will affect the quality of plastic granules 10 to some extent, and some of these attachments come from the transportation stage. At this time, the feeding structure set up to slow down the falling speed of plastic granules 10 can prolong the residence time of plastic granules 10 in the feed pipe 4. At the same time, an air source and an air duct 6 are set up. The air duct 6 ventilates and blows the falling plastic granules 10 directly. The plastic granules 10 with extended residence time can be subjected to air flow for a longer period of time, thereby blowing away some burrs, debris, and dust, and reducing the attachments on the surface of plastic granules 10.

[0030] like Figure 3 and Figure 6 As shown, an opening is provided with a baffle 12. The baffle 12 is arc-shaped and smoothly connected to the inner wall of the feed tube 4. The orthographic projection of the baffle 12 is circular. The baffle 12 includes a circular outer shell 13 and several reinforcing ribs 14 disposed inside the outer shell. Multiple reinforcing ribs 14 are horizontally spaced at the top inside the circular outer shell 13, and one or two are vertically arranged inside the circular outer shell 13, leaving a gap inside the circular outer shell 13 that is smaller at the top and larger at the bottom. The baffle 12 is located in the upper middle part of the feed tube 4, corresponding to the upper middle position of the feeding structure. The baffle 12 is not directly disposed at the top of the feeding structure, as... Figure 3 , Figure 4As shown, the feeding structure is configured as a spiral feeding section 8. The spiral feeding section 8 is either in contact with the inner wall of the material pipe 4 or has a gap smaller than the diameter of the plastic particles 10. The spiral feeding section 8 does not contact the baffle 12. The baffle 12 is positioned at the gap between the first set of impellers of the spiral feeding section 8. Above the spiral feeding section 8, due to the feeding from the hopper 2, ... Figure 4 As shown, there are many accumulated plastic particles 10, so the plastic particles 10 are distributed relatively densely. When the air duct 6 is set in this area, the removal effect of impurities is poor due to the accumulation of materials when the air flows. However, the material accumulation in the impeller gap below is limited. Therefore, when the air duct 6 is designed here, the air flow can have better contact with the plastic particles 10, thereby ensuring the removal effect of impurities.

[0031] To facilitate waste collection, a collection box 5 is installed on the outer side of the air duct 6. The collection box 5 has an openable and closable door on its outer side, and ventilation holes are provided in the middle or bottom of the collection box 5. Preferably, the bottom of the collection box 5 is hollowed out and fitted with a filter screen, with the area where the filter screen is located forming the ventilation holes. The door is used to open and close for waste removal, while the ventilation holes ensure unobstructed airflow in the air duct 6, and the filter screen is used to intercept impurities. The filter screen is preferably located at the bottom rather than on the side of the collection box 5, so that the collected impurities can accumulate at the bottom of the collection box 5 through airflow.

[0032] like Figure 3 As shown, the preferred hopper 2 is positioned above the middle of the feed pipe 4, and the feed is connected to the side of the feed pipe 4. The feeding mechanism for the plastic granules 10 also includes a mounting frame and a fixing part 3. The mounting frame is provided with multiple mounting parts 7 at intervals, and the multiple mounting parts 7 fix the feed pipe 4. The motor 1 is positioned above the mounting frame, and the output shaft of the motor 1 is connected to the screw feeder 8, thereby causing the screw feeder 8 to rotate and feed the material.

[0033] The fixing part 3 is located on the outside of the mounting frame. The fixing part 3 can be detachably connected to the wall or other processing equipment, which facilitates the installation of this feeding mechanism.

[0034] The preferred air source is fan 9, which is mounted on the mounting frame, and the air duct 6 is fixedly installed between the mounting frame and the material pipe 4.

[0035] The feed pipe 4 is positioned vertically, with its discharge port pointing downwards. The air duct 6 is angled upwards, with an angle ranging from 5° to 30°. This slight angle of the air duct 6 allows for better contact between the airflow and the plastic particles 10. Figure 3 As shown, this allows impurities to move slightly to the upper right and be expelled simultaneously, preventing them from accumulating in areas like... Figure 3 The bottom of the first impeller gap shown in the image affects the dust removal effect to some extent. For the removal of debris 11, please refer to... Figure 4 .

[0036] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for plastic granules, characterized in that, The device includes a hopper and a feed pipe. The feed pipe is equipped with a feeding structure that is adapted to slow down the falling speed of plastic particles inside the feed pipe. An opening is provided in the upper area of ​​the feed pipe, and an air duct is provided horizontally at the opening. An air source is provided outside the air duct, and the air source blows air in the direction of the air duct and acts on the plastic particles whose falling speed has been slowed down.

2. The feeding mechanism for plastic granules as described in claim 1, characterized in that, The opening is equipped with a baffle, which is arc-shaped and smoothly connected to the inner wall of the material tube. The orthographic projection of the baffle is circular. The baffle includes a circular outer shell and several reinforcing ribs disposed inside the outer shell. Several reinforcing ribs are horizontally spaced at the top inside the circular outer shell, and one or two are vertically disposed inside the circular outer shell, so as to leave a gap that is smaller at the top and larger at the bottom inside the circular outer shell. The baffle is located in the upper middle part of the material tube, corresponding to the upper middle part of the feeding structure.

3. The feeding mechanism for plastic granules as described in claim 2, characterized in that, The feeding structure is configured as a spiral feeding part, which is either in contact with the inner wall of the material tube or has a gap smaller than the diameter of the plastic particles, and the spiral feeding part does not contact the baffle.

4. The feeding mechanism for plastic granules as described in claim 3, characterized in that, A collection box is provided on the outside of the air duct, and the collection box has an openable and closable door on the outside. The middle or bottom of the collection box is provided with air vents for ventilation.

5. The feeding mechanism for plastic granules as described in claim 4, characterized in that, The bottom of the collection box is hollowed out and a filter screen is installed, and the area where the filter screen is located forms the air vent.

6. The feeding mechanism for plastic granules as described in claim 1, characterized in that, The hopper is located in the upper middle part of the material pipe and is connected to the side of the material pipe for feeding.

7. The feeding mechanism for plastic granules as described in claim 1, characterized in that, It also includes a mounting bracket and a fixing part, wherein the mounting bracket is provided with multiple mounting parts at intervals, and the multiple mounting parts fix the material tube.

8. The feeding mechanism for plastic granules as described in claim 7, characterized in that, The fixing part is located on the outside of the mounting frame, and the fixing part is detachably connected to the wall or other processing equipment.

9. The feeding mechanism for plastic granules as described in claim 8, characterized in that, The air source is a fan, which is mounted on the mounting frame, and the air duct is fixedly installed between the mounting frame and the material pipe.

10. The feeding mechanism for plastic granules as described in claim 1, characterized in that, The material pipe has a vertically downward-facing discharge port, and the air duct is inclined upwards with an angle ranging from 5° to 30°.

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