Auxiliary feeding device for side feeding type double-screw extruder

By designing a feeding auxiliary device for a side-feed twin-screw extruder, the problem of insufficient feeding adaptability of the twin-screw extruder was solved, achieving stable feeding and convenient fixing of pipelines and conveyor belts, and improving production efficiency.

CN223972096UActive Publication Date: 2026-03-06SHENZHEN XINGSHENGDI NEW MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing twin-screw extruders lack adaptability during the feeding process, especially in the side feed section, and cannot effectively adapt to both pipeline and conveyor belt conveying methods, resulting in inconvenience in raw material feeding.

Method used

A feeding auxiliary device for a side-feed twin-screw extruder was designed, including a feed pipe, a fixed plate, a rotating plate, a connecting cover, a support rod, and a fixing device. By rotating the rotating plate and the support rod structure, stable feeding of materials into the pipe and conveyor belt is achieved, and the position of the feed pipe is fixed by magnetic blocks and clamping blocks.

Benefits of technology

It achieves compatibility with different conveying equipment, reduces raw material drop, ensures smooth raw material feeding, and facilitates the disassembly and fixing of the feed pipe.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of screw extruders, and particularly relates to a feeding auxiliary device for a side feeding type double-screw extruder, which comprises a machine body and a feeding device, the side wall of the machine body is fixedly connected with a driver, and the side wall of the machine body is fixedly connected with two feeding parts; the feeding device is arranged on the upper surface of the feeding part and comprises a feeding pipe, the bottom end of the feeding pipe is fixedly connected with the upper surface of the feeding part, a fixing plate is fixedly connected to the upper surface of the feeding pipe, a rotating plate is rotatably connected to the surface of the fixing plate, a connecting cover is fixedly connected to the upper surface of the rotating plate, and fixing devices are arranged on the surfaces of the feeding part and the feeding pipe. The fixing device comprises a placing plate, the upper surface of the placing plate is fixedly connected with the bottom end of the feeding pipe, and clamping blocks are fixedly connected to the two sides of the feeding part; by arranging the whole device, different conveying equipment can be conveniently used, and meanwhile, the baffle can block raw materials, so that the raw materials are assisted to fall into the feeding pipe.
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Description

Technical Field

[0001] This utility model relates to the field of screw extruder technology, specifically a feeding auxiliary device for a side-feed twin-screw extruder. Background Technology

[0002] Screw extruders are core equipment in industries such as plastics processing, rubber, food, and building materials. They are mainly used for mixing, plasticizing, conveying, and molding materials. By rationally configuring the screw structure (such as kneading blocks and shearing elements) and process parameters, screw extruders can achieve efficient and precise continuous production, making them an indispensable piece of equipment in the polymer processing field.

[0003] Regarding the above and existing related technologies: When producing some products, twin-screw extruders are required. Some twin-screw extruders use a side feed section for feeding. Since most feed sections lack flexibility in feeding methods, some raw materials need to be transported via pipelines, while others need to be transported via conveyor belts. During production, the feed section may not be able to meet the demand. Therefore, to address the above problems, a feeding auxiliary device for a side-feed twin-screw extruder is proposed. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The side-feeding twin-screw extruder feeding auxiliary device of this utility model includes a machine body and a feeding device. A drive motor is fixedly connected to the side wall of the machine body, and two feeding parts are fixedly connected to the side wall of the machine body. The feeding device is set on the upper surface of the feeding part. The feeding device includes a feeding pipe. The bottom end of the feeding pipe is fixedly connected to the upper surface of the feeding part. A fixing plate is fixedly connected to the upper surface of the feeding pipe. A rotating plate is rotatably connected to the surface of the fixing plate. A connecting cover is fixedly connected to the upper surface of the rotating plate. When the pipe is inserted into the inner surface of the connecting cover, the raw material will enter the feeding pipe through the connecting cover and then enter the feeding part through the feeding pipe. By setting the feeding pipe, fixing plate and rotating plate, the raw material can be conveniently transported by pipe.

[0006] Preferably, the upper surface of the connecting cover is fixedly connected with two fixing rings. The bolts are rotated to the pipe and the inner wall of the fixing rings. The fixing rings can be used to easily fix the position of the pipe.

[0007] Preferably, a baffle is fixedly connected to the upper surface of the fixed plate. The cross-section of the baffle forms a U-shaped structure. The conveyor belt is inserted into the inner surface of the baffle, which can reduce the occurrence of raw materials falling.

[0008] Preferably, support rods are fixedly connected to both sides of the feed section, and a top column is fixedly connected to the upper surface of the support rod. When the rotating plate rotates, the rotating plate will rotate to the surface of the top column on the support rod, and the support rod and the top column can support the rotating plate.

[0009] Preferably, multiple reinforcing rods are fixedly connected to the surfaces of the two support rods. When the support rods are under force, the support rods will transmit the force to the reinforcing rods, which can increase the strength of the two support rods.

[0010] Preferably, the surface of the feeding section and the feeding tube is provided with a fixing device. The fixing device includes a placement plate, the upper surface of which is fixedly connected to the bottom end of the feeding tube. Both sides of the feeding section are fixedly connected with a locking block. The placement plate is sleeved on the surface of the locking block. Two inserts are inserted into the inner walls of the placement plate and the locking block. Pushing the inserts allows them to be inserted into the inner walls of the placement plate and the locking block. By setting the placement plate, the locking block and the inserts, the position of the feeding tube can be fixed.

[0011] Preferably, the side walls of the two insertion posts are fixedly connected with push blocks. When it is necessary to move the insertion posts, push blocks are pushed to move the insertion posts. By setting push blocks, it is convenient to install two insertion posts at the same time.

[0012] Preferably, a magnetic block is fixedly connected to the side wall of the card block, and the side wall of the magnetic block and the side wall of the push block are magnetically attracted to each other. The magnetic block attracts the push block, and the position of the push block can be restricted by setting the magnetic block.

[0013] The advantages of this utility model are:

[0014] 1. When feeding is required, the present invention pushes the rotating plate to rotate on the surface of the fixed plate. The rotating plate will drive the connecting cover to move. The rotating plate will rotate to the surface of the fixed plate, and then the conveying pipe will be inserted into the inner surface of the connecting cover. Then the bolt will be rotated to the inner wall of the conveying pipe and the fixed ring. During material conveying, the raw material will enter the inner surface of the feed pipe through the connecting cover, and then enter the inner surface of the feed section through the feed pipe. When using the conveyor belt to convey the raw material, push the connecting cover to drive the rotating plate to rotate. The rotating plate will rotate to the top column of the support rod. When the support rod is under force, it will transmit the force to the reinforcing rod. Then the conveyor belt will be inserted into the inner surface of the baffle. When the raw material moves, it will fall into the feed pipe. By setting the entire device, different conveying equipment can be used conveniently. At the same time, the baffle can also block the raw material, thereby assisting the raw material to fall into the feed pipe.

[0015] 2. When the feed tube is placed on the feed section, the feed tube will drive the placement plate to move. The placement plate will fit over the surface of the feed section and the card block. Then, push the push block to drive the two insertion pins to move. The two insertion pins will be inserted into the inner wall of the placement plate and the card block. When the push block moves, it will adhere to the magnetic block. The magnetic block will attract the push block. By setting the entire device, the position of the feed tube can be fixed, and the feed tube can also be easily disassembled and assembled. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the machine body in a feeding auxiliary device for a side-feed twin-screw extruder.

[0018] Figure 2 In a side-feed twin-screw extruder, a feeding auxiliary device is used. Figure 1 A schematic diagram of the structure at point A;

[0019] Figure 3 This is a side view of the machine body of a feeding auxiliary device for a side-feed twin-screw extruder.

[0020] Figure 4 This is a bottom view of the machine body in a feeding auxiliary device for a side-feed twin-screw extruder.

[0021] Figure 5 In a side-feed twin-screw extruder, a feeding auxiliary device is used. Figure 4 A schematic diagram of the structure at point B.

[0022] In the diagram: 1. Machine body; 2. Drive motor; 3. Feeding section; 4. Feeding device; 41. Feeding pipe; 42. Fixing plate; 43. Rotating plate; 44. Connecting cover; 45. Fixing ring; 46. Baffle; 47. Support rod; 48. Top column; 49. Reinforcing rod; 5. Fixing device; 51. Placement plate; 52. Locking block; 53. Inserting column; 54. Pushing block; 55. Magnetic block. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] Please see Figure 1-5 As shown, a feeding auxiliary device for a side-feed twin-screw extruder includes a machine body 1 and a feeding device 4. A drive motor 2 is fixedly connected to the side wall of the machine body 1, and two feeding sections 3 are fixedly connected to the side wall of the machine body 1. The feeding device 4 is disposed on the upper surface of the feeding section 3, and the feeding device 4 includes a feeding pipe 41. The bottom end of the feeding pipe 41 is fixedly connected to the upper surface of the feeding section 3, and a fixing plate 42 is fixedly connected to the upper surface of the feeding pipe 41. The surface of the fixing plate 42 is rotatably connected to... There is a rotating plate 43, and a connecting cover 44 is fixedly connected to the upper surface of the rotating plate 43. During operation, the rotating plate 43 is rotated to make the rotating plate 43 rotate on the surface of the fixed plate 42. The rotating plate 43 drives the connecting cover 44 to rotate. After the connecting cover 44 is placed on the fixed plate 42, the pipe is inserted into the inner surface of the connecting cover 44. The raw material will enter the feed pipe 41 through the connecting cover 44, and then enter the feed section 3 through the feed pipe 41. By setting the feed pipe 41, the fixed plate 42 and the rotating plate 43, it is convenient to use the pipe to transport the raw material.

[0025] Two fixing rings 45 are fixedly connected to the upper surface of the connecting cover 44. During operation, the pipe will fit against the surface of the fixing ring 45, and then the bolt will be rotated to the inner wall of the pipe and the fixing ring 45. The fixing ring 45 can be used to fix the position of the pipe.

[0026] A baffle 46 is fixedly connected to the upper surface of the fixed plate 42. The cross-section of the baffle 46 forms a U-shaped structure. During operation, when the conveyor belt is moved to the surface of the fixed plate 42, the conveyor belt will insert into the inner surface of the baffle 46, which can reduce the occurrence of raw materials falling.

[0027] Both sides of the feed section 3 are fixedly connected to support rods 47, and the upper surface of the support rods 47 is fixedly connected to a top column 48. During operation, the rotating plate 43 will rotate to the surface of the top column 48 on the support rods 47, and the support rods 47 and the top column 48 can support the rotating plate 43.

[0028] Multiple reinforcing rods 49 are fixedly connected to the surfaces of the two support rods 47; during operation, the support rods 47 transmit force to the reinforcing rods 49, and the reinforcing rods 49 can increase the strength of the two support rods 47.

[0029] The feed section 3 and the feed tube 41 are provided with a fixing device 5. The fixing device 5 includes a placement plate 51. The upper surface of the placement plate 51 is fixedly connected to the bottom end of the feed tube 41. Both sides of the feed section 3 are fixedly connected with a locking block 52. The placement plate 51 is sleeved on the surface of the locking block 52. Two insertion posts 53 are inserted into the inner walls of the placement plate 51 and the locking block 52. During operation, the feed tube 41 will drive the placement plate 51 to move. The placement plate 51 moves to the surface of the feed section 3 and the locking block 52, and then pushes the insertion posts 53 to insert them into the inner walls of the placement plate 51 and the locking block 52. By setting the placement plate 51, the locking block 52 and the insertion posts 53, the position of the feed tube 41 can be fixed.

[0030] Push blocks 54 are fixedly connected to the side walls of the two insertion posts 53. During operation, the push blocks 54 are pushed to move the insertion posts 53. By setting the push blocks 54, it is convenient to install two insertion posts 53 at the same time.

[0031] A magnetic block 55 is fixedly connected to the side wall of the card block 52, and the side wall of the magnetic block 55 and the side wall of the push block 54 are magnetically attracted. During operation, the push block 54 will fit against the magnetic block 55, and the magnetic block 55 will attract the push block 54. The position of the push block 54 can be restricted by setting the magnetic block 55.

[0032] Working principle: When feeding is required, push the rotating plate 43 to rotate on the surface of the fixed plate 42. The rotating plate 43 will drive the connecting cover 44 to move. The rotating plate 43 will rotate to the surface of the fixed plate 42, and then the conveying pipe will be inserted into the inner surface of the connecting cover 44. Then the bolts will be rotated to the inner wall of the conveying pipe and the fixing ring 45. During material conveying, the raw material will enter the inner surface of the feed pipe 41 through the connecting cover 44, and then enter the inner surface of the feed section 3 through the feed pipe 41. When using the conveyor belt to convey raw materials, push the connecting cover 44 to drive the rotating plate 43 to rotate. The rotating plate 43 will rotate to the upper surface of the top column 48 on the support rod 47. When the support rod 47 is under force, it will transmit the force to the reinforcing rod 49, and then the conveyor belt will be inserted into the feed pipe. The inner surface of the baffle 46 allows the raw material to fall into the feed pipe 41 during movement. By setting up the entire device, different feeding equipment can be used conveniently. At the same time, the baffle 46 can also block the raw material, thereby assisting the raw material to fall into the feed pipe 41. When the feed pipe 41 is placed on the feed section 3, the feed pipe 41 will drive the placement plate 51 to move. The placement plate 51 will fit over the surface of the feed section 3 and the clamping block 52. Then, push the push block 54 to drive the two inserts 53 to move. The two inserts 53 will insert into the inner wall of the placement plate 51 and the clamping block 52. When the push block 54 moves, it will adhere to the magnetic block 55. The magnetic block 55 will attract the push block 54. By setting up the entire device, the position of the feed pipe 41 can be fixed, and the feed pipe 41 can also be easily disassembled and assembled.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An auxiliary feeding device for a side-feeding double screw extruder, comprising a machine body (1) and a feeding device (4), a driving machine (2) is fixedly connected to the side wall of the machine body (1), and two feeding portions (3) are fixedly connected to the side wall of the machine body (1); characterized in that: The feeding device (4) is arranged on the upper surface of the feeding part (3), the feeding device (4) comprises a feeding pipe (41), the bottom end of the feeding pipe (41) is fixedly connected with the upper surface of the feeding part (3), the upper surface of the feeding pipe (41) is fixedly connected with a fixed plate (42), the surface of the fixed plate (42) is rotatably connected with a rotating plate (43), and the upper surface of the rotating plate (43) is fixedly connected with a connecting cover (44).

2. The auxiliary feeding device for a side-fed twin-screw extruder according to claim 1, characterized in that: The upper surface of the connecting cover (44) is fixedly connected with two fixed rings (45).

3. The auxiliary feeding device for a side-fed twin-screw extruder according to claim 1, characterized in that: The upper surface of the fixed plate (42) is fixedly connected with a baffle (46), and the cross section of the baffle (46) forms a "concave" type structure.

4. The auxiliary feeding device for a side-fed twin-screw extruder according to claim 1, characterized in that: The two sides of the feeding part (3) are fixedly connected with supporting rods (47), and the upper surface of the supporting rod (47) is fixedly connected with a top column (48).

5. The auxiliary feeding device for a side-fed twin-screw extruder according to claim 4, characterized in that: The surface of the two supporting rods (47) is fixedly connected with a plurality of reinforcing rods (49).

6. The auxiliary feeding device for a side-fed twin-screw extruder according to claim 1, characterized in that: The surface of the feeding part (3) and the feeding pipe (41) is provided with a fixing device (5), the fixing device (5) comprises a placing plate (51), the upper surface of the placing plate (51) is fixedly connected with the bottom end of the feeding pipe (41), the two sides of the feeding part (3) are fixedly connected with clamping blocks (52), the placing plate (51) is sleeved on the surface of the clamping block (52), and the inner walls of the placing plate (51) and the clamping block (52) are inserted with two inserting columns (53).

7. The auxiliary feeding device for a side-fed twin-screw extruder according to claim 6, characterized in that: The side wall of the two inserting columns (53) is fixedly connected with a push block (54).

8. The auxiliary feeding device for a side-fed twin-screw extruder according to claim 7, characterized in that: The side wall of the clamping block (52) is fixedly connected with a magnetic block (55), and the side wall of the magnetic block (55) is magnetically attracted to the side wall of the push block (54).