Feeding device for extruder

Abstract

The utility model discloses a feeding device for an extruder, which relates to the technical field of extruder accessories and comprises a feeding hopper, an auxiliary structure is arranged on the outer side of the feeding hopper, a bottom frame is arranged at the bottom end of the feeding hopper, and a material distributing structure is arranged at the lower end of the inner side of the bottom frame. According to the feeding device for the extruder, the motor assembly drives the rotary drum to rotate, the rotary drum drives the screening and filtering frame at the front end of the placement frame to rotate, and the screening and filtering frame is set to change the angle through rotation, so that when materials enter the feeding hopper, the screening and filtering frame is rotated, the screening and filtering effect is improved, and the feeding efficiency is improved. And the materials are filtered through the surface of the screening and filtering frame, when large-particle materials are retained on the surface of the screening and filtering frame, the screening and filtering frame is rotated again, the materials on the surface of the screening and filtering frame enter the bottom end of the feeding hopper again, the materials can be conveniently guided in batches, and the interior of the feeding hopper is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder accessories, in particular to a feeding device for an extruder. Background Art

[0002] An extruder is a device that continuously extrude materials (such as plastics, rubber, metals, etc.) into shapes by extrusion. It is widely used in the fields of plastic processing, food processing, building materials manufacturing, etc. The following is the basic structure and working principle of an extruder:

[0003] Basic composition:

[0004] hopper:

[0005] It is used to store the material to be extruded and feed the material into the screw of the extruder at a constant rate.

[0006] Screw and barrel:

[0007] Screw: Mainly responsible for pushing the material forward, while heating and plasticizing the material. The design of the screw (such as pitch, screw depth, etc.) affects the performance of the extruder and the quality of the final product.

[0008] Barrel: Works with the screw to form a closed heating chamber, allowing the material to move forward and plasticize under the push of the screw.

[0009] Heating and Cooling Systems:

[0010] Heating system: usually includes electric heater or oil heater, which is used to heat the barrel and material to reach the temperature required for plasticization.

[0011] Cooling system: Mainly used to cool the screw and barrel to prevent excessive temperature from causing material degradation or screw jamming.

[0012] Mould:

[0013] The shaping tool determines the shape and size of the final product through the orifice of the mold.

[0014] Traction and cutting system:

[0015] The extruded material needs to be pulled to make it evenly discharged, and then cut or other subsequent processing is required.

[0016] Working principle:

[0017] Add ingredients:

[0018] Raw materials are added to a hopper and enter the barrel by gravity or a forced feeding device such as a feed screw.

[0019] Plasticizing and mixing:

[0020] When the screw rotates, the raw materials are plasticized under the combined action of shear stress and heat between the screw and the barrel. The structure of the screw allows the materials to be further mixed during the movement.

[0021] Extrusion:

[0022] The plasticized molten material is extruded through the die under the continuous push of the screw and is shaped into a semi-finished product or finished product of the desired shape.

[0023] Cooling and setting:

[0024] The extruded material is cooled by air, water or other cooling methods to quickly set and maintain its shape.

[0025] Traction and post-processing:

[0026] The shaped products are pulled out by the traction device to maintain continuous production. Finally, the products are cut, surface treated or further processed as needed.

[0027] Application areas:

[0028] Plastic processing: such as pipes, sheets, films, profiles, etc.

[0029] Food processing: such as noodles, candies, pet food, etc.

[0030] Building materials manufacturing: such as PVC pipes, aluminum-plastic composite materials, etc.

[0031] Rubber processing: such as rubber sealing strips, rubber hoses, etc.

[0032] The specific design and operating parameters of the extruder will vary depending on the application and the characteristics of the processed material.

[0033] Application CN202211229011.8, the feeding device for the plastic extruder and the plastic extruder thereof, comprises: a vertical housing; a feeding port, the feeding port is opened at the side end of the vertical housing near the top position; a feeding port, the feeding port is opened at the bottom end of the vertical housing; a stirring unit, the stirring unit is installed in the vertical housing; a liquid adding unit, the liquid adding unit is installed on the vertical housing. Plastic particles are fed into the vertical housing from the feeding port, the liquid adding unit adds the additive liquid into the plastic particles, and the stirring unit evenly stirs the plastic particles, but the device cannot pre-treat the material when it is in use.

[0034] Therefore, in view of this, research and improvement are conducted to the existing deficiencies, and a feeding device for an extruder is proposed. Utility Model Content

[0035] The purpose of the utility model is to provide a feeding device for an extruder to solve the problems raised in the above background technology.

[0036] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a feeding device for an extruder, comprising: a feeding hopper, an auxiliary structure is arranged on the outer side of the feeding hopper;

[0037] A bottom frame is arranged at the bottom end of the feed hopper, and a material dividing structure is arranged at the lower end of the inner side of the bottom frame.

[0038] Furthermore, the auxiliary structure includes a screening frame, a placement frame, a rotating drum and a motor assembly. The outer side of the feed hopper is penetrated by a rotating drum, one end of the rotating drum is provided with a screening frame, the front end of the outer side of the rotating drum is provided with a placement frame, and the other end of the rotating drum is provided with a motor assembly. The rotating drum and the feed hopper are fixedly connected to prevent the rotating drum from falling off.

[0039] Furthermore, the inner diameter of the placement frame is larger than the diameter of the drum, so as to prevent the drum from rotating in disorder.

[0040] Furthermore, the rotating drum and the filter frame are snap-fitted to facilitate replacement and cleaning of the filter frame.

[0041] Furthermore, the basic shape of the screen frame is a rectangle, and the design of the screen frame shape can be changed according to the shape of the inside of the feed hopper, which is convenient for designing the shape of the screen frame and also for changing the quality of material introduction according to the area inside the screen frame.

[0042] Furthermore, the material dividing structure includes a material guide cylinder, a clamping ring, a first guide outlet and a second guide outlet. The material guide cylinder is arranged at the upper end of the inner side of the bottom frame, the lower end of the material guide cylinder is arranged at the outer side, the second guide outlet is arranged on one side of the interior of the material guide cylinder, and the first guide outlet is arranged on the other side of the interior of the material guide cylinder. The diameter of the second guide outlet is larger than that of the first guide outlet, so as to facilitate the distinction between material piles of different sizes.

[0043] Furthermore, the diameter of the material guide cylinder is equal to the diameter of the bottom end of the feed hopper to prevent material leakage.

[0044] Compared with the prior art, the beneficial effects of the utility model are:

[0045] 1. The utility model drives the drum to rotate through the motor assembly, and the drum drives the screen frame at the front end of the placement frame to rotate. The screen frame changes the angle setting after rotation, so that when the material enters the feed hopper, the surface of the screen frame filters the material. When there are large particles of material retained on the surface of the screen frame, the screen frame is rotated again, and the material on the surface of the screen frame enters the bottom end of the feed hopper again, which is convenient for introducing materials in batches and preventing the inside of the feed hopper from being blocked;

[0046] 2. The utility model allows materials to enter the guide barrel from the feed hopper, and the guide barrel guides the materials into the second guide outlet and the inner side of the first guide outlet, so that the second guide outlet and the first guide outlet can roughly divide the materials into two parts, which is convenient for staff to collect the weights. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic diagram of the first appearance structure of the utility model;

[0048] Figure 2 This is a schematic diagram of the second appearance structure of the utility model;

[0049] Figure 3 This is a schematic diagram of the third appearance structure of the utility model;

[0050] Figure 4 This is a schematic diagram of the feed hopper and auxiliary structure of the first part of the utility model;

[0051] Figure 5 This is a schematic diagram of the feed hopper and auxiliary structure of the second part of the utility model;

[0052] Figure 6 This is a schematic diagram of the auxiliary structure of the utility model;

[0053] Figure 7 It is a schematic diagram of the material dividing structure of the utility model.

[0054] In the figure: 1. feed hopper; 2. auxiliary structure; 201. screening frame; 202. placement frame; 203. rotating drum; 204. motor assembly; 3. bottom frame; 4. material distribution structure; 401. material guide cylinder; 402. clamping ring; 403. first guide outlet; 404. second guide outlet. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0056] like Figure 1-Figure 2 As shown, a feeding device for an extruder comprises: a feeding hopper 1, an auxiliary structure 2 is arranged on the outer side of the feeding hopper 1;

[0057] A bottom frame 3 is provided at the bottom end of the feed hopper 1 , and a material dividing structure 4 is provided at the lower end of the inner side of the bottom frame 3 .

[0058] like Figure 1-Figure 7 As shown, a feeding device for an extruder, the auxiliary structure 2 includes a screen frame 201, a placement frame 202, a drum 203 and a motor assembly 204, the outer side of the feed hopper 1 is penetrated by a drum 203, one end of the drum 203 is provided with a screen frame 201, the front end of the outer side of the drum 203 is provided with a placement frame 202, the other end of the drum 203 is provided with a motor assembly 204, the drum 203 and the feed hopper 1 are fixedly connected, the motor assembly 204 is opened, the motor assembly 204 drives the drum 203 to rotate, and the placement frame 202 is provided. The sieve frame 201 at one end of the inner side of the frame 202 rotates with the drum 203, and the angle of the sieve frame 201 to receive the material is adjusted. At this time, the material gradually passes through the sieve frame 201, and the material with smaller particles continues to enter the inner bottom layer of the feed hopper 1, and the material with larger particles stays at the top of the sieve frame 201. When a part of the material is finished pouring, the sieve frame 201 rotates again, and the remaining particles on the surface of the sieve frame 201 enter the inner bottom layer of the feed hopper 1. At this point, the material is processed by the sieve frame 201 and the material separation work is completed:

[0059] This brings the following effects and advantages:

[0060] Automated screening:

[0061] The motor assembly 204 drives the drum 203 to rotate, driving the screening frame 201 to move, thereby realizing automatic screening, reducing manual intervention and significantly improving screening efficiency.

[0062] Fine material division:

[0063] Through the mesh of the screening frame 201 , materials with smaller particles can pass smoothly and enter the inner bottom layer of the feed hopper 1 , while larger particles are blocked on the surface of the screening frame 201 to achieve fine material separation.

[0064] Material uniformity ensures:

[0065] Since coarse and fine particles are effectively separated, the raw materials entering the next processing step are more uniform, thus improving the consistency and quality of the product.

[0066] Flexible adjustment:

[0067] By adjusting the angle of the screening frame 201, the screening requirements of materials with different characteristics can be met, thereby improving the versatility and adaptability of the equipment.

[0068] Reduce equipment burden:

[0069] Large particles are screened out before entering the feed hopper 1, thus avoiding blockage and wear of subsequent equipment such as extruders and mixers, and extending the service life of the equipment.

[0070] Improved production efficiency:

[0071] The automated and precise screening process improves the efficiency of the entire production line, thereby increasing productivity and economic benefits.

[0072] Low cost maintenance:

[0073] Since the screening process is carried out automatically, the loss and maintenance cost of equipment are reduced, and the labor intensity of operators is reduced.

[0074] The auxiliary structure 2 drives the drum 203 and the screening frame 201 through the motor assembly 204 to realize automatic screening and material separation, improve efficiency, product quality and equipment life, and have high adaptability and flexibility. This improvement not only simplifies the production process, but also reduces the operation and maintenance costs, so it has important value in practical applications.

[0075] like Figure 1-Figure 7 As shown, a feeding device for an extruder, the material distribution structure 4 includes a guide barrel 401, a clamping ring 402, a first guide outlet 403 and a second guide outlet 404, the upper end of the inner side of the bottom frame 3 is provided with a guide barrel 401, the lower end of the guide barrel 401 is provided with a clamping ring 402 on the outer side, one side of the inner side of the guide barrel 401 is provided with a second guide outlet 404, the other side of the inner side of the guide barrel 401 is provided with a first guide outlet 403, the diameter of the second guide outlet 404 is greater than the diameter of the first guide outlet 403, the material enters the guide barrel 401 inside the bottom frame 3 from the bottom end of the feed hopper 1, and the second guide outlet 404 and the first guide outlet 403 inside the guide barrel 401 divide the material into two strands for export:

[0076] This design brings the following effects and advantages:

[0077] Efficient material distribution:

[0078] The design of the material guide cylinder 401 allows the material to be effectively divided into two parts after entering the inner side of the bottom frame 3. The material is diverted to different paths through the first guide port 403 and the second guide port 404, thereby improving the material division efficiency.

[0079] Material Control:

[0080] Since the diameter of the second outlet 404 is greater than that of the first outlet 403 , materials of different particle sizes or quantities can be diverted through different outlets, thereby achieving regulation of the material flow rate.

[0081] Reduce clogging:

[0082] The design of two outlets helps to reduce the blockage problem that may occur in a single path and improves the operating stability and continuity of the equipment.

[0083] Flexible use:

[0084] By adjusting the use of the two outlets, different processing requirements can be flexibly met. For example, small-sized particles can pass through the smaller first outlet 403, and large-sized particles can pass through the larger second outlet 404.

[0085] Increased processing power:

[0086] Dual-path diversion reduces the burden on a single outlet, improves overall processing capacity, and enables the equipment to handle a larger material flow, thereby improving production efficiency.

[0087] Optimize the burden on downstream equipment:

[0088] By pre-diverting the material, downstream equipment such as conveyor belts, screening machines or processing equipment can obtain a more uniform and appropriate material flow, reduce wear and load, and improve the service life and working efficiency of downstream equipment.

[0089] This material distribution structure 4 realizes efficient material diversion, flow control and reduces blockage problems through the design of the material guide cylinder 401 and its two outlets, the first outlet 403 and the second outlet 404, and at the same time improves the overall processing capacity and production efficiency of the equipment. This structure can significantly improve the quality and efficiency of material processing and reduce equipment maintenance costs in practical applications, and has high practical value.

[0090] Working principle: When using the feeding device for the extruder, first install the feed hopper 1 and the bottom frame 3 on the outside of the equipment. At this time, the staff pours the material into the feed hopper 1 and turns on the motor assembly 204. The motor assembly 204 drives the drum 203 to rotate, and the screen frame 201 at one end of the inner side of the placement frame 202 rotates with the drum 203. The angle of the screen frame 201 to receive the material is adjusted. At this time, the material gradually passes through the screen frame 201, and the material with smaller particles continues to enter the inner bottom layer of the feed hopper 1, and the material with larger particles stays on the screen frame 201. At the top of the frame 201, when a part of the material is finished pouring in, the screening frame 201 rotates again, and the remaining particles on the surface of the screening frame 201 enter the inner bottom layer of the feed hopper 1. At this point, the material is processed by the screening frame 201 and the material separation work is completed. The material enters the guide barrel 401 on the inner side of the bottom frame 3 from the bottom end of the feed hopper 1. The second outlet 404 and the first outlet 403 on the inner side of the guide barrel 401 divide the material into two streams for outlet, which is convenient for the staff to collect in batches. This is the working principle of the feeding device for the extruder.

[0091] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A feeding device for an extruder, comprising: A feed hopper (1), characterized in that an auxiliary structure (2) is provided on the outer side of the feed hopper (1); A bottom frame (3) is provided at the bottom end of the feed hopper (1), and a material distribution structure (4) is provided at the lower end of the inner side of the bottom frame (3).

2. A feeding device for an extruder according to claim 1, characterized in that: The auxiliary structure (2) comprises a screening frame (201), a placement frame (202), a rotating drum (203) and a motor assembly (204); the rotating drum (203) is arranged through the outer side of the feed hopper (1); one end of the rotating drum (203) is provided with a screening frame (201); the front end of the outer side of the rotating drum (203) is provided with a placement frame (202); the other end of the rotating drum (203) is provided with a motor assembly (204); and the rotating drum (203) and the feed hopper (1) are fixedly connected.

3. A feeding device for an extruder according to claim 2, characterized in that: The basic shape of the screening frame (201) is a rectangle, and the design of the shape of the screening frame (201) can be changed according to the shape of the interior of the feed hopper (1).

4. A feeding device for an extruder according to claim 2, characterized in that: The rotating drum (203) and the screening frame (201) are connected by snap-fitting.

5. A feeding device for an extruder according to claim 2, characterized in that: The inner diameter of the placement frame (202) is larger than the diameter of the rotating drum (203).

6. A feeding device for an extruder according to claim 1, characterized in that: The material distribution structure (4) comprises a material guide cylinder (401), a clamping ring (402), a first guide outlet (403) and a second guide outlet (404); the material guide cylinder (401) is arranged at the upper end of the inner side of the bottom frame (3); the material guide cylinder (401) is arranged at the lower end with a clamping ring (402) arranged on the outer side; the second guide outlet (404) is arranged on one side of the inner side of the material guide cylinder (401); the first guide outlet (403) is arranged on the other side of the inner side of the material guide cylinder (401); and the diameter of the second guide outlet (404) is greater than the diameter of the first guide outlet (403).

7. A feeding device for an extruder according to claim 6, characterized in that: The diameter of the material guide cylinder (401) is equal to the diameter of the bottom end of the feed hopper (1).

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