A feed mechanism for a melt extruder

Abstract

The utility model relates to extruder technical field, and disclose a kind of feeding mechanism of melt extruder, including extrusion cylinder, the top of extrusion cylinder is connected with the blanking tube, the top of blanking tube is connected with feed hopper, the hopper wall of feed hopper is slidably connected with concave cylinder, the right side of feed hopper is provided with adjusting assembly.The utility model can adjust the height of feed hopper by setting adjusting assembly, so as to adjust the amount of raw materials in feed hopper, increase the storage capacity of feed hopper, reduce the number of users to feed hopper, reduce the labor intensity, by the setting of dredging component, the raw materials can be dredged when the raw materials enter the extrusion cylinder from the feed hopper, so as to avoid the situation of blockage, improve the effect of feeding, so that the material can be smoothly conveyed to the extruder for processing, without dredging the feed hopper by artificial method, which facilitates operation.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a feeding mechanism of a melting extruder. Background Art

[0002] In plastic extrusion molding equipment, a plastic extruder is usually referred to as the main machine, while the subsequent plastic extrusion molding machine配套 with it is called the auxiliary machine. The plastic extruder can be matched with various plastic molding auxiliary machines such as pipes, films, rods, monofilaments, flat filaments, packing tapes, wire meshes, plates, profiled materials, granulation, and cable coating to form various plastic extrusion molding production lines for producing various plastic products. The molding principle of the plastic extruder is: by heating and pressurizing, the material continuously passes through the honeycomb plate in a flowing state, which is also called "extrusion molding".

[0003] Inside the extruder, the raw materials are heated and melted by a heating device, and then under the pressure of the screw, the raw materials can be extruded from the extrusion nozzle. During the operation process, the raw materials are transported from the feed hopper to the inside of the extruder, but blockage is likely to occur. At the same time, the existing feed hopper has a limited material storage capacity, resulting in the user needing to frequently add materials, increasing the workload. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a feeding mechanism of a melting extruder to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A feeding mechanism of a melting extruder includes an extrusion barrel. The top of the extrusion barrel is connected with a feeding pipe. The top of the feeding pipe is connected with a feed hopper. A concave barrel is slidably connected to the wall of the feed hopper. An adjusting component is arranged on the right side of the feed hopper. A dredging component is arranged in the inner cavity of the feeding pipe. A first motor is fixedly connected to the left side of the extrusion barrel. The output shaft of the first motor penetrates through the extrusion barrel and is fixedly connected with a spiral extrusion rod. The right side of the extrusion barrel is connected with an extrusion nozzle. An extrusion head is threadedly connected to the inner cavity of the extrusion nozzle.

[0006] By adopting the above technical solution, through the setting of the adjusting component, the height of the feed hopper can be adjusted, so that the quantity of raw materials stored in the feed hopper can be adjusted, increasing the storage capacity of the feed hopper, reducing the number of times the user adds materials to the feed hopper, and reducing the labor intensity. Through the setting of the dredging component, when the raw materials enter the extrusion barrel from the feed hopper, the feeding raw materials can be dredged, thus avoiding blockage, improving the feeding effect, and further enabling the materials to be smoothly transported to the extruder for processing without dredging the feed hopper manually, which facilitates the operation.

[0007] Preferably, the adjusting assembly includes a second motor fixedly installed at the bottom right side of the feed hopper, the output shaft of the second motor is fixedly connected to a threaded rod, the surface of the threaded rod is threadedly connected to a threaded sleeve, and the left side of the threaded sleeve is fixedly connected to a concave cylinder.

[0008] By adopting the above technical solution, the height of the feed hopper can be adjusted, thereby adjusting the amount of raw materials that can be held in the feed hopper, increasing the storage capacity of the feed hopper, reducing the number of times the user needs to add materials into the feed hopper, and reducing the workload.

[0009] Preferably, the unblocking assembly includes a driving gear and a driven gear. Both sides of the inner cavity of the feed pipe are movably connected to unblocking rods via bearings. The left side of the unblocking rod passes through the feed pipe and meshes with the driven gear. A third motor is fixedly connected to the left side of the top of the extrusion cylinder. The output shaft of the third motor is fixedly connected to the driving gear, and the driving gear meshes with the driven gear.

[0010] By adopting the above technical solution, the raw material can be unblocked when it enters the extrusion cylinder from the feed hopper, thereby avoiding blockage and improving the feeding effect. This allows the material to be smoothly transported to the extruder for processing without the need for manual unblocking of the feed hopper, which simplifies the operation.

[0011] Preferably, the inner cavity of the extrusion nozzle is provided with an internal thread, and the outer surface of the extrusion head is provided with an external thread that mates with the internal thread.

[0012] By adopting the above technical solution, the extrusion head can be easily replaced according to the extrusion requirements of different diameters.

[0013] Preferably, the feed hopper has grooves on both sides, and a slider is slidably connected to the inner cavity of the groove. The end of the slider away from the groove is fixedly connected to the concave cylinder.

[0014] By adopting the above technical solution, the concave cylinder can be limited and guided to move, increasing the stability when the threaded rod drives the threaded sleeve to move upward, and thus increasing the stability when the concave cylinder is adjusted upward.

[0015] Preferably, a limiting block is fixedly connected to the top of the threaded rod.

[0016] By adopting the above technical solution, the upward movement of the threaded sleeve can be limited.

[0017] Preferably, the inner wall of the extrusion cylinder is provided with a heating block.

[0018] By adopting the above technical solution, the raw materials inside the extrusion cylinder can be thermally melted.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention, by incorporating an adjustment component, allows for height adjustment of the feed hopper, thereby regulating the amount of raw material held in the hopper. This increases the hopper's capacity, reduces the frequency of adding material, and lowers labor intensity. Furthermore, the unblocking component clears blockages as the raw material enters the extruder, preventing clogging and improving feeding efficiency. This ensures the material is smoothly transported to the extruder for processing, eliminating the need for manual hopper clearing and simplifying operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0023] Figure 3 This is a perspective view of the concave cylinder in the structure of this utility model;

[0024] Figure 4 The structure of this utility model Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 5 The structure of this utility model Figure 2 A magnified view of a section at point B in the middle;

[0026] Figure 6 The structure of this utility model Figure 2 A magnified view of a section at point C.

[0027] In the diagram: 1. Extrusion cylinder; 2. Feed pipe; 3. Feed hopper; 4. Concave cylinder; 5. Adjustment component; 501. Second motor; 502. Threaded rod; 503. Threaded sleeve; 6. Unblocking component; 601. Drive gear; 602. Driven gear; 603. Unblocking rod; 604. Third motor; 7. First motor; 8. Spiral extrusion rod; 9. Extrusion nozzle; 10. Extrusion head; 11. Internal thread; 12. External thread; 13. Slide groove; 14. Slider; 15. Limiting block; 16. Heating block. Detailed Implementation

[0028] 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.

[0029] Example 1:

[0030] Reference Figure 1-6 A feeding mechanism for a melt extruder includes an extrusion cylinder 1, a discharge pipe 2 connected to the top of the extrusion cylinder 1, a feeding hopper 3 connected to the top of the discharge pipe 2, a concave cylinder 4 slidably connected to the wall of the feeding hopper 3, an adjustment assembly 5 provided on the right side of the feeding hopper 3, the adjustment assembly 5 including a second motor 501 fixedly installed at the bottom right side of the feeding hopper 3, a threaded rod 502 fixedly connected to the output shaft of the second motor 501, a threaded sleeve 503 threadedly connected to the surface of the threaded rod 502, the left side of the threaded sleeve 503 fixedly connected to the concave cylinder 4, a clearing assembly 6 provided in the inner cavity of the discharge pipe 2, the clearing assembly 6 including a driving gear 601 and a driven gear 602, clearing rods 603 movably connected to both sides of the inner cavity of the discharge pipe 2 via bearings, the left side of the clearing rods 603 penetrating the discharge pipe 2 and meshing with the driven gear 602, a third motor 604 fixedly connected to the left side of the top of the extrusion cylinder 1, the output of the third motor 604... The shaft is fixedly connected to the drive gear 601, which meshes with the driven gear 602. A first motor 7 is fixedly connected to the left side of the extrusion cylinder 1. The output shaft of the first motor 7 passes through the extrusion cylinder 1 and is fixedly connected to the spiral extrusion rod 8. An extrusion nozzle 9 is connected to the right side of the extrusion cylinder 1. An extrusion head 10 is threadedly connected to the inner cavity of the extrusion nozzle 9. By setting the adjustment component 5, the height of the feed hopper 3 can be adjusted, thereby adjusting the amount of raw material held in the feed hopper 3, increasing the storage capacity of the feed hopper 3, reducing the number of times the user adds material to the feed hopper 3, and reducing the workload. By setting the unblocking component 6, the raw material can be unblocked when it enters the extrusion cylinder 1 from the feed hopper 3, thereby avoiding blockage and improving the feeding effect. This allows the material to be smoothly transported to the extruder for processing without the need for manual unblocking of the feed hopper 3, which facilitates operation.

[0031] Example 2:

[0032] Reference Figure 2 , Figure 5 and Figure 6The extrusion nozzle 9 has an internal thread 11 in its inner cavity, and the extrusion head 10 has an external thread 12 on its outer surface that mates with the internal thread 11. This allows for easy replacement of the extrusion head 10 according to different extrusion diameter requirements. Both sides of the feed hopper 3 have a sliding groove 13, and a slider 14 is slidably connected to the inner cavity of the sliding groove 13. The end of the slider 14 away from the sliding groove 13 is fixedly connected to the concave cylinder 4, which can limit and guide the movement of the concave cylinder 4, increasing the stability when the threaded rod 502 drives the threaded sleeve 503 to move upward, thereby increasing the stability when the concave cylinder 4 is adjusted upward. A limit block 15 is fixedly connected to the top of the threaded rod 502, which can limit the upward movement of the threaded sleeve 503. A heating block 16 is provided on the inner wall of the extrusion cylinder 1, which can perform heat melting processing on the raw material in the extrusion cylinder 1.

[0033] The working principle is as follows:

[0034] In use, the second motor 501 is started first to drive the threaded rod 502 to rotate. The threaded rod 502 drives the threaded sleeve 503 to move upward, which in turn drives the concave cylinder 4 to move upward. At this time, the height of the feed hopper 3 can be adjusted, thereby adjusting the amount of raw materials held in the feed hopper 3, increasing the storage capacity of the feed hopper 3, reducing the number of times the user adds materials into the feed hopper 3, and reducing the workload.

[0035] Simultaneously, the third motor 604 is started to drive the drive gear 601 to rotate. The drive gear 601 drives the driven gear 602 to rotate, and the driven gear 602 drives the unblocking rod 603 in the feed pipe 2 to rotate. This unblocks the feed material as it enters the extrusion cylinder 1 from the feed hopper 3, thus preventing blockages and improving the feeding efficiency. This allows the material to be smoothly transported to the extruder for processing without the need for manual unblocking of the feed hopper 3, simplifying operation. At this time, the heating block 16 inside the extrusion cylinder 1 heats and melts the incoming raw material. Finally, the first motor 7 is started to drive the spiral extrusion rod 8 to rotate, which extrudes the heat-melted raw material.

[0036] In summary, the feeding mechanism of this melt extruder, by setting the adjusting component 5, can adjust the height of the feeding hopper 3, thereby adjusting the amount of raw material held in the feeding hopper 3, increasing the storage capacity of the feeding hopper 3, reducing the number of times the user needs to add material into the feeding hopper 3, and reducing labor intensity. By setting the unblocking component 6, the raw material can be unblocked when it enters the extrusion cylinder 1 from the feeding hopper 3, thereby avoiding blockage and improving the feeding efficiency. In this way, the material can be smoothly transported to the extruder for processing without the need for manual unblocking of the feeding hopper 3, which facilitates operation.

[0037] All standard parts used in this application can be purchased from the market, and 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. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for a melt extruder, comprising an extrusion cylinder (1), characterized in that: The top of the extrusion cylinder (1) is connected to the feed pipe (2), the top of the feed pipe (2) is connected to the feed hopper (3), the wall of the feed hopper (3) is slidably connected to the concave cylinder (4), the right side of the feed hopper (3) is provided with an adjustment component (5), the inner cavity of the feed pipe (2) is provided with a clearing component (6), the left side of the extrusion cylinder (1) is fixedly connected to the first motor (7), the output shaft of the first motor (7) passes through the extrusion cylinder (1) and is fixedly connected to the spiral extrusion rod (8), the right side of the extrusion cylinder (1) is connected to the extrusion nozzle (9), and the inner cavity of the extrusion nozzle (9) is threadedly connected to the extrusion head (10).

2. The feeding mechanism of a melt extruder according to claim 1, characterized in that: The adjustment assembly (5) includes a second motor (501) fixedly installed at the bottom right side of the feed hopper (3). The output shaft of the second motor (501) is fixedly connected to a threaded rod (502). The surface of the threaded rod (502) is threadedly connected to a threaded sleeve (503). The left side of the threaded sleeve (503) is fixedly connected to the concave cylinder (4).

3. The feeding mechanism of a melt extruder according to claim 1, characterized in that: The unblocking assembly (6) includes a drive gear (601) and a driven gear (602). Both sides of the inner cavity of the feed pipe (2) are movably connected to the unblocking rod (603) through bearings. The left side of the unblocking rod (603) passes through the feed pipe (2) and meshes with the driven gear (602). A third motor (604) is fixedly connected to the left side of the top of the extrusion cylinder (1). The output shaft of the third motor (604) is fixedly connected to the drive gear (601). The drive gear (601) meshes with the driven gear (602).

4. The feeding mechanism of a melt extruder according to claim 1, characterized in that: The inner cavity of the extrusion nozzle (9) is provided with an internal thread (11), and the outer surface of the extrusion head (10) is provided with an external thread (12) that cooperates with the internal thread (11).

5. The feeding mechanism of a melt extruder according to claim 1, characterized in that: The feed hopper (3) has a sliding groove (13) on both sides. A slider (14) is slidably connected to the inner cavity of the sliding groove (13). The end of the slider (14) away from the sliding groove (13) is fixedly connected to the concave cylinder (4).

6. The feeding mechanism of a melt extruder according to claim 2, characterized in that: The top of the threaded rod (502) is fixedly connected to a limiting block (15).

7. The feeding mechanism of a melt extruder according to claim 1, characterized in that: The inner wall of the extrusion cylinder (1) is provided with a heating block (16).

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