A feeding mechanism for a plastic extruder

Abstract

The utility model relates to the technical field of plastic extruder, especially a feeding mechanism for plastic extruder, the feeding mechanism for plastic extruder includes feeding hopper, the feeding hopper top is connected with the apron, the inside of feeding hopper is provided with the material passing subassembly, the material passing subassembly one end is provided with the first drive wheel, the first drive wheel is connected with the second drive wheel through the drive belt. Through the rotation of the material passing shaft, the material passing rod and the stirring rod will be driven to rotate in the feeding hopper, the material particles in the feeding hopper are stirred and scattered, preventing a large number of particles from being accumulated and blocked, and the material is pushed to move to the discharge end, improving the smoothness of the discharge, through the linkage of the first drive wheel, the drive belt and the second drive wheel, the rotation of the material passing shaft can be driven by the power of the driving part on the plastic extruder, without separately configuring a driving device, realizing the reasonable distribution and utilization of power, simplifying the equipment structure and improving the overall operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic extruder technology, and in particular to a feeding mechanism for a plastic extruder. Background Technology

[0002] A plastic extruder feeding device is a device that assists in adding materials, namely raw plastic granules, into the plastic extruder. The feeding device can prevent the materials from scattering everywhere when adding them.

[0003] Currently, when plastic granules are poured into the feeding device, a large amount of material is added at once, which can easily cause blockages in the feeding hopper. This requires easy unblocking and affects the material feeding efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that a large amount of material easily gets stuck in the feeding hopper, which requires easy unblocking and affects the material feeding efficiency. The invention provides a feeding mechanism for a plastic extruder that can stir and disperse the material particles in the feeding hopper, prevent a large amount of particles from accumulating and blocking the hopper, and at the same time push the material towards the discharge end to improve the smoothness of the feeding process.

[0005] To achieve the above objectives, this utility model provides a feeding mechanism for a plastic extruder, including a feeding hopper with a cover plate connected above it. A feeding assembly is disposed inside the feeding hopper, and a first drive wheel is disposed at one end of the feeding assembly. The first drive wheel is connected to a second drive wheel via a drive belt. The second drive wheel is mounted on a drive shaft, and a conveying auger is mounted on the drive shaft. One end of the drive shaft is connected to a drive component. The feeding assembly includes a feeding shaft, which is rotatably connected to the feeding hopper via a bearing seat. Multiple feeding rods are connected to the feeding shaft, and each feeding rod is provided with multiple stirring rods.

[0006] As a further description of the above technical solution: a first feeding cylinder and a second feeding cylinder are installed on the cover plate, and a scale plate is provided on both the first feeding cylinder and the second feeding cylinder. A first control valve is provided at the discharge end of both the first feeding cylinder and the second feeding cylinder.

[0007] As a further description of the above technical solution: a second control valve is provided at the discharge end of the feeding hopper, the lower end of the feeding hopper is connected to the feeding pipe through an isolation pipe, and the conveying auger is located inside the feeding pipe.

[0008] As a further description of the above technical solution: a protective pipe is provided outside the isolation pipe, and a heat insulation channel is formed between the isolation pipe and the protective pipe. A water inlet pipe and a water outlet pipe are installed on the protective pipe.

[0009] As a further description of the above technical solution: the cover plate is detachably connected to the feeding hopper by bolts.

[0010] As a further description of the above technical solution: the cover plate is provided with a first discharge port and a second discharge port.

[0011] As a further description of the above technical solution: both the first control valve and the second control valve are electrically controlled valves.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] This invention utilizes the rotation of the feed shaft to drive the feed rod and stirring rod to rotate inside the feeding hopper, stirring and dispersing the material particles in the hopper to prevent large amounts of particles from accumulating and clogging. At the same time, it pushes the material towards the discharge end, improving the smoothness of the discharge. Through the linkage of the first drive wheel, drive belt and second drive wheel, the power of the drive components on the plastic extruder can drive the feed shaft to rotate, eliminating the need for a separate drive device. This achieves reasonable power distribution and utilization, simplifies the equipment structure and improves overall operating efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the feeding mechanism in one embodiment of the present invention;

[0015] Figure 2 This is a cross-sectional view of the feeding mechanism in one embodiment of the present invention;

[0016] Figure 3 for Figure 1 Internal diagram of the central protective tube;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the middle cover plate.

[0018] Legend:

[0019] 1. Feeding hopper; 2. Cover plate; 3. Feeding assembly; 4. First drive wheel; 5. Drive belt; 6. Second drive wheel; 7. Drive shaft; 8. Conveying auger; 9. Drive component; 10. First feeding cylinder; 11. Second feeding cylinder; 12. Scale plate; 13. First control valve; 14. Second control valve; 15. Isolation pipe; 16. Feeding pipe; 17. Protective pipe; 18. Heat insulation channel; 19. Water supply pipe; 20. Water discharge pipe; 21. Bolt; 22. First discharge port; 23. Second discharge port; 31. Feeding shaft; 32. Bearing seat; 33. Feeding rod; 34. Stirring rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1-4 As shown, a feeding mechanism for a plastic extruder according to this utility model includes a feeding hopper 1, a cover plate 2 connected above the feeding hopper 1, a feeding assembly 3 inside the feeding hopper 1, a first drive wheel 4 at one end of the feeding assembly 3, the first drive wheel 4 being connected to a second drive wheel 6 via a drive belt 5, the second drive wheel 6 being mounted on a drive shaft 7, a conveying auger 8 being mounted on the drive shaft 7, and one end of the drive shaft 7 being connected to a drive component 9; the feeding assembly 3 includes a feeding shaft 31, the feeding shaft 31 being rotatably connected to the feeding hopper 1 via a bearing seat 32, and multiple feeding rods 33 connected to the feeding shaft 31, each feeding rod 33 being provided with multiple stirring rods 34.

[0024] In the technical solution of this invention, the rotation of the feed shaft 31 drives the feed rod 33 and the stirring rod 34 to rotate inside the feeding hopper 1, stirring and dispersing the material particles in the feeding hopper 1 to prevent a large number of particles from accumulating and clogging. At the same time, it pushes the material towards the discharge end, improving the smoothness of the discharge. The operation of the drive component 9 drives the drive shaft 7 to rotate, which in turn drives the conveying auger 8 and the second drive wheel 6 to rotate. The second drive wheel 6 drives the first drive wheel 4 and the feed shaft 31 to rotate through the drive belt 5, forming a transmission system to achieve indirect power transmission. Through the linkage of the first drive wheel 4, the drive belt 5 and the second drive wheel 6, the power of the drive component 9 on the plastic extruder can drive the feed shaft 31 to rotate, eliminating the need for a separate drive device. This achieves reasonable power distribution and utilization, simplifies the equipment structure, and improves the overall operating efficiency.

[0025] The drive unit 9 consists of a motor, a transmission wheel, and a transmission belt. The motor drives the transmission wheel to rotate, and the transmission wheel drives the drive shaft 7 to rotate via the transmission belt. This drives the conveying auger 8 to rotate. The conveying auger 8 is located inside the feeding pipe 16. The rotation of the spiral blades pushes the material from the isolation pipe 15 into the extruder, thus achieving continuous material conveying.

[0026] like Figure 1 and Figure 2 As shown, a first feeding cylinder 10 and a second feeding cylinder 11 are installed on the cover plate 2. Both the first feeding cylinder 10 and the second feeding cylinder 11 are equipped with a scale plate 12. The discharge ends of the first feeding cylinder 10 and the second feeding cylinder 11 are equipped with a first control valve 13. Through the channels for material to be poured into the first feeding cylinder 10 and the second feeding cylinder 11, multi-channel feeding can be realized. Different types of plastic granules can be added at the same time or in batches, which improves the feeding flexibility. The volume scale of the feeding cylinder is marked by the scale plate 12, which makes it easy for the operator to accurately control the feeding amount, realize quantitative feeding, and avoid clogging caused by excessive feeding at one time. Through the first control valve 13 installed at the discharge end of the feeding cylinder, the speed and flow rate of the material flowing into the feeding hopper can be adjusted by controlling the valve opening and closing, and precise feeding can be achieved in conjunction with the scale plate 12.

[0027] like Figure 1 and Figure 2 As shown, a second control valve 14 is provided at the discharge end of the feeding hopper 1. The lower end of the feeding hopper 1 is connected to the feeding pipe 16 through the isolation pipe 15. The conveying auger 8 is located inside the feeding pipe 16. The feeding rhythm of the feeding hopper 1 to the isolation pipe can be controlled by the second control valve 14 installed at the discharge end of the feeding hopper. It can be coordinated with the conveying speed adjustment of the conveying auger 8 to avoid material accumulation or material interruption. The isolation pipe 5 connects the feeding hopper and the feeding pipe and serves as a transition channel for material to enter the feeding pipe from the feeding hopper. The conveying auger 8 is installed inside the feeding pipe 16 and is the main channel for conveying material to the extruder.

[0028] like Figure 1 and Figure 3 As shown, a protective pipe 17 is provided outside the isolation pipe 15, and a heat insulation channel 18 is formed between the isolation pipe 15 and the protective pipe 17. A water inlet pipe 19 and a water outlet pipe 20 are installed on the protective pipe 17. The protective pipe 17 is sleeved over the isolation pipe 15, and a heat insulation channel 18 is formed between the two. Cooling water or other heat insulation media are introduced through the water inlet pipe 19 and the water outlet pipe 20. The heat insulation channel 18 can isolate external heat, prevent the heat on the heating pipe on the plastic extruder from being transferred to the feeding hopper 1, prevent the material temperature inside the isolation pipe from becoming too high, prevent the plastic particles from softening prematurely, ensure the physical state of the material during the conveying process, and prevent blockage. The water inlet pipe 19 and the water outlet pipe 20 are used to inject and discharge cooling water into the heat insulation channel. A water tank can be connected for circulating cooling to achieve temperature control of the heat insulation channel and maintain a suitable environment inside the isolation pipe 15.

[0029] like Figure 1 and Figure 4 As shown, the cover plate 2 has a first discharge port 22 and a second discharge port 23. The first discharge port 22 and the second discharge port 23 are opened on the cover plate and correspond to the discharge ends of the first feeding cylinder and the second feeding cylinder, so that the material can fall accurately into the feeding hopper and avoid spillage.

[0030] The cover plate 2 is detachably connected to the feeding hopper 1 by bolts 21; the bolts 21 facilitate the installation and removal of the cover plate 2, and make it convenient to inspect the inside of the feeding hopper 1.

[0031] like Figure 1 and Figure 2 As shown, both the first control valve 13 and the second control valve 14 are electrically controlled valves; the plastic extruder is equipped with an electrical control box that controls the operation of the feeding mechanism. The electrical control box controls the working status of the first control valve 13, the second control valve 14 and the drive component 9 through an integrated electrical control system, so as to realize the automatic adjustment of the feeding amount, stirring speed and conveying speed, and improve the stability and efficiency of the equipment operation.

[0032] Working principle: The rotation of the feed shaft 31 drives the feed rod 33 and the stirring rod 34 to rotate inside the feed hopper 1, stirring and dispersing the material particles in the feed hopper 1 to prevent a large number of particles from accumulating and clogging. At the same time, it pushes the material towards the discharge end, improving the smoothness of the discharge. The operation of the drive component 9 drives the drive shaft 7 to rotate, which in turn drives the conveying auger 8 and the second drive wheel 6 to rotate. The second drive wheel 6 drives the first drive wheel 4 and the feed shaft 31 to rotate through the drive belt 5, forming a transmission system to achieve indirect power transmission. Through the linkage of the first drive wheel 4, the drive belt 5 and the second drive wheel 6, the power of the drive component 9 on the plastic extruder can drive the feed shaft 31 to rotate, eliminating the need for a separate drive device. This achieves reasonable power distribution and utilization, simplifies the equipment structure and improves the overall operating efficiency.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A feeding mechanism for a plastic extruder, characterized in that, Includes a feeding hopper (1), with a cover plate (2) connected above the feeding hopper (1), and a material feeding assembly (3) provided inside the feeding hopper (1). A first drive wheel (4) is provided at one end of the material feeding assembly (3), and the first drive wheel (4) is connected to a second drive wheel (6) via a drive belt (5). The second drive wheel (6) is mounted on a drive shaft (7), and a conveying auger (8) is mounted on the drive shaft (7). One end of the drive shaft (7) is connected to a drive component (9). The feeding assembly (3) includes a feeding shaft (31), which is rotatably connected to the feeding hopper (1) through a bearing seat (32). Multiple feeding rods (33) are connected to the feeding shaft (31), and multiple stirring rods (34) are provided on each feeding rod (33).

2. The feeding mechanism for a plastic extruder according to claim 1, characterized in that: The cover plate (2) is equipped with a first feeding cylinder (10) and a second feeding cylinder (11). Both the first feeding cylinder (10) and the second feeding cylinder (11) are provided with a scale plate (12). Both the first feeding cylinder (10) and the second feeding cylinder (11) are provided with a first control valve (13) at their discharge ends.

3. The feeding mechanism for a plastic extruder according to claim 1, characterized in that: The feeding hopper (1) is equipped with a second control valve (14) at the discharge end. The lower end of the feeding hopper (1) is connected to the feeding pipe (16) through an isolation pipe (15). The conveying auger (8) is located inside the feeding pipe (16).

4. The feeding mechanism for a plastic extruder according to claim 3, characterized in that: The isolation pipe (15) is provided with a protective pipe (17) outside, and a heat insulation channel (18) is formed between the isolation pipe (15) and the protective pipe (17). A water inlet pipe (19) and a water outlet pipe (20) are installed on the protective pipe (17).

5. The feeding mechanism for a plastic extruder according to claim 1, characterized in that: The cover plate (2) is detachably connected to the feeding hopper (1) by bolts (21).

6. The feeding mechanism for a plastic extruder according to claim 1, characterized in that: The cover plate (2) has a first discharge port (22) and a second discharge port (23).

7. The feeding mechanism for a plastic extruder according to claim 2, characterized in that: Both the first control valve (13) and the second control valve (14) are electrically controlled valves.

Images