Same-direction conical double-screw extruder

Abstract

The utility model belongs to the technical field of extruders, and discloses a co-rotating conical double-screw extruder which comprises a machine bin, a hopper screen mechanism is arranged at the top of the machine bin, anti-blocking mechanisms are arranged at the four corners of the top of the hopper screen mechanism correspondingly, a matched extrusion pipe is arranged on one side of the outer wall of the machine bin, and mounting frames which are evenly distributed are arranged on the outer wall of the extrusion pipe; an extrusion groove is formed in the matched extrusion pipe in a penetrating mode, an extrusion mechanism is arranged on the side, away from the matched extrusion pipe, of the machine bin in a penetrating mode, and an anti-blocking mechanism is arranged on the side, away from the matched extrusion pipe, of the machine bin through the synergistic effect of a top supporting rod, a top mounting plate, an anti-blocking driving motor, a linkage rod, a fixing circular ring and a conical threaded stirring rod; according to the co-rotating conical double-screw extruder, the functions of effective stirring and blocking prevention of raw materials in the feeding hopper are achieved, the operation stability and production efficiency of the co-rotating conical double-screw extruder can be remarkably improved, and the hopper screen mechanism achieves efficient screening and stable conveying of the raw materials through the synergistic effect of the feeding hopper, the hydraulic telescopic rod and the folding through pipe.

Description

Technical Field

[0001] This application relates to the field of extruder technology, and more specifically, to a co-rotating conical twin-screw extruder. Background Technology

[0002] Extruders are frequently used in the processing of plastic granules. Extruders are divided into single-screw, twin-screw, and multi-screw extruders. Twin-screw extruders can be further divided into co-rotating twin-screw and counter-rotating twin-screw extruders. Co-rotating twin-screw extruders are more widely used because their conical shape allows for better and stronger extrusion. Extruders typically consist of an extrusion screw and an external barrel. The barrel can be integral or modular.

[0003] When existing extruders are in operation, the feeding into the hopper can easily cause blockage, affecting the overall production efficiency.

[0004] To address the aforementioned problems, this application provides a co-rotating conical twin-screw extruder. Utility Model Content

[0005] This application provides a co-rotating conical twin-screw extruder with the following technical solution:

[0006] A co-rotating conical twin-screw extruder includes a housing, a bucket screen mechanism at the top of the housing, anti-clogging mechanisms at the four corners of the top of the bucket screen mechanism, a matching extrusion tube on one side of the outer wall of the housing, mounting frames evenly distributed on the outer wall of the extrusion tube, an extrusion groove penetrating through the matching extrusion tube, an extrusion mechanism penetrating through the side of the housing away from the matching extrusion tube, and a stabilizing base mechanism at the bottom of both the housing and the mounting frames.

[0007] Furthermore, the extrusion mechanism extends through the machine chamber into the matching extrusion tube, and the lower half of the anti-clogging mechanism extends into the bucket screen mechanism, with the lower half of the anti-clogging mechanism located between the inner walls of the bucket screen mechanism.

[0008] Furthermore, the hopper screen mechanism includes a feeding hopper, and hydraulic telescopic rods are provided at the four bottom corners of the feeding hopper. The bottom of each hydraulic telescopic rod is fixed to the top of the machine compartment. The conical bottom of the feeding hopper is provided with a folded pipe, and the feeding hopper is connected to the machine compartment through the folded pipe.

[0009] Furthermore, the anti-clogging mechanism includes a top support rod, with a top mounting plate positioned opposite each other on the top of the top support rod. An anti-clogging drive motor is positioned on the top of the top mounting plate, and the output end of the anti-clogging drive motor extends through the top mounting plate to the bottom of the top mounting plate. A linkage rod is positioned at the bottom of the top mounting plate, and the output end of the anti-clogging drive motor is connected to the linkage rod. A fixed ring is positioned at the bottom of the linkage rod, and a conical spiral agitator is positioned at the bottom of the fixed ring, with the conical spiral agitator positioned opposite each other on the inner wall of the feed hopper.

[0010] Furthermore, the extrusion mechanism includes a mounting base, on the side of the mounting base away from the machine compartment, there are mutually symmetrical extrusion drive motors, and the output end of the extrusion drive motor extends through the mounting base into the machine compartment. On the side of the mounting base away from the extrusion drive motor, there are mutually symmetrical extrusion rods, and the extrusion rods are connected to the output end of the extrusion drive motors. The outer wall of each extrusion rod is provided with a circumferential thread in the same direction.

[0011] Furthermore, the stabilizing base mechanism includes a base, the bottom of which is provided with a grid-shaped reinforcing rib, and a base pad is provided at the bottom intersection of the reinforcing ribs.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The anti-clogging mechanism, through the coordinated action of the top support rod, top mounting plate, anti-clogging drive motor, linkage rod, fixed ring, and conical threaded agitator, effectively stirs and prevents clogging of the raw materials in the feed hopper. This significantly improves the operational stability and production efficiency of the co-rotating conical twin-screw extruder. The hopper screen mechanism, through the coordinated action of the feed hopper, hydraulic telescopic rod, and folding pipe, achieves efficient screening and stable transmission of raw materials, ensuring that the raw materials can smoothly and continuously enter the machine chamber and provide strong support for the subsequent extrusion process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the bucket screen mechanism structure of this application;

[0016] Figure 3 This is a schematic diagram of the extrusion mechanism structure of this application;

[0017] Figure 4 This is a schematic diagram of the stable base mechanism of this application.

[0018] Explanation of the labels in the diagram:

[0019] 1. Machine compartment; 2. Bucket screen mechanism; 201. Feed hopper; 202. Hydraulic telescopic rod; 203. Folding pipe; 3. Anti-clogging mechanism; 301. Top support rod; 302. Top mounting plate; 303. Anti-clogging drive motor; 304. Linkage rod; 305. Fixing ring; 306. Tapered thread stirring rod; 4. Extrusion mechanism; 401. Mounting base; 402. Extrusion drive motor; 403. Extrusion rod; 404. Co-directional thread; 5. Matching extrusion pipe; 6. Mounting frame; 7. Extrusion groove; 8. Stable base mechanism; 801. Base; 802. Reinforcing rib; 803. Base pad. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Example:

[0024] This application discloses a co-rotating conical twin-screw extruder. Please refer to [link / reference]. Figures 1-4The equipment includes a machine compartment 1, a bucket screen mechanism 2 on the top of the machine compartment 1, anti-clogging mechanisms 3 at the four corners of the top of the bucket screen mechanism 2, a matching extrusion pipe 5 on one side of the outer wall of the machine compartment 1, a uniformly distributed mounting frame 6 on the outer wall of the extrusion pipe 5, an extrusion groove 7 passing through the matching extrusion pipe 5, an extrusion mechanism 4 passing through the side of the machine compartment 1 away from the matching extrusion pipe 5, a stabilizing base mechanism 8 at the bottom of the machine compartment 1 and the mounting frame 6, the extrusion mechanism 4 extending through the machine compartment 1 into the matching extrusion pipe 5, and the lower half of the anti-clogging mechanism 3 extending into the bucket screen mechanism 2, with the lower half of the anti-clogging mechanism 3 located between the inner walls of the bucket screen mechanism 2. The main body of the equipment is the machine compartment 1, with the bucket screen mechanism 2 designed on its top. The bucket screen mechanism not only handles the initial feeding of raw materials but also promotes uniform distribution through its special structure, ensuring efficient extrusion. To address potential material blockage, anti-blocking mechanisms 3 are installed at the four top corners of the bucket screen mechanism 2, effectively preventing material accumulation and blockage during the feeding process and ensuring the continuity and stability of the extrusion process. The lower part of the anti-blocking mechanism extends deep into the bucket screen mechanism, precisely targeting areas prone to blockage, achieving a synergistic anti-blockage effect. An extrusion mechanism 4 is located on the side of the machine chamber 1 away from the matching extrusion pipe 5. This mechanism, through its design of penetrating the machine chamber and extending into the matching extrusion pipe 5, achieves efficient material extrusion. The matching extrusion pipe 5 contains an extrusion groove 7, further guiding and optimizing the extrusion process. To enhance the overall stability and ease of installation, stable base mechanisms 8 are installed at the bottom of both the machine chamber 1 and the mounting frame 6. These bases not only effectively distribute the weight of the equipment and reduce pressure on the ground but also ensure the stability and reliability of the equipment during operation through their robust structural design.

[0025] The bucket screen mechanism 2 includes a feed hopper 201. Hydraulic telescopic rods 202 are provided at the four corners of the bottom periphery of the feed hopper 201, and the bottoms of the hydraulic telescopic rods 202 are fixed to the top of the machine compartment 1. A folded pipe 203 is provided at the conical bottom of the feed hopper 201, and the feed hopper 201 is connected to the machine compartment 1 through the folded pipe 203. Through the synergistic action of the feed hopper 201, the hydraulic telescopic rods 202, and the folded pipe 203, the bucket screen mechanism 2 achieves efficient screening and stable transmission of raw materials, ensuring that the raw materials can smoothly and continuously enter the machine compartment and provide strong support for the subsequent extrusion process. It can adapt to the processing needs of raw materials of different types or states.

[0026] The anti-clogging mechanism 3 includes a top support rod 301, with a top mounting plate 302 positioned opposite each other on the top of the top support rod 301. An anti-clogging drive motor 303 is mounted on the top of the top mounting plate 302, and its output end extends through the top mounting plate 302 to below it. A linkage rod 304 is positioned at the bottom of the top mounting plate 302, and the output end of the anti-clogging drive motor 303 is connected to the linkage rod 304. A fixing ring 305 is positioned at the bottom of the linkage rod 304, and a conical spiral agitator 306 with a conical spiral shape is positioned at the bottom of the fixing ring 305. The conical spiral agitator 306 is located opposite each other on the inner wall of the feed hopper 201 and is the core component of the anti-clogging mechanism. Its conical spiral design allows the agitator to generate a strong stirring effect when rotating, effectively dispersing and agitating the raw materials in the feed hopper, preventing blockage or accumulation. Meanwhile, the conical design of the stirring rod facilitates its penetration into the bottom and corners of the feed hopper, ensuring comprehensive and uniform mixing. The fixing ring 305 is installed at the bottom of the linkage rod 304, serving to fix and support the conical thread stirring rod 306. It ensures that the stirring rod maintains a stable posture and position during rotation. The anti-clogging drive motor 303, installed on the top of the top mounting plate 302, is the power source for the entire anti-clogging mechanism. Its output end passes through the top mounting plate 302 and extends downwards, transmitting power to the linkage rod 304 through a mechanical connection, thereby driving the conical thread stirring rod 306 to rotate. The anti-clogging mechanism 3, through the synergistic action of the top support rod 301, the top mounting plate 302, the anti-clogging drive motor 303, the linkage rod 304, the fixing ring 305, and the conical thread stirring rod 306, achieves effective mixing and anti-clogging functions for the raw materials in the feed hopper 201.

[0027] The extrusion mechanism 4 includes a mounting base 401. Symmetrically arranged extrusion drive motors 402 are located on the side of the mounting base 401 away from the machine compartment 1, and the output ends of the extrusion drive motors 402 extend through the mounting base 401 into the machine compartment 1. Symmetrically arranged extrusion rods 403 are located on the side of the mounting base 401 away from the extrusion drive motors 402, and the extrusion rods 403 are connected to the output ends of the extrusion drive motors 402. The outer walls of each extrusion rod 403 are provided with circumferential, unidirectional threads 404. Through the synergistic action of the mounting base 401, the extrusion drive motors 402, the extrusion rods 403, and the unidirectional threads 404, the extrusion mechanism 4 achieves efficient extrusion of raw materials, ensuring that the raw materials remain uniform and stable during the extrusion process, thereby producing high-quality products. Simultaneously, the stability and durability of the extrusion mechanism 4 are fully guaranteed, meeting the needs of long-term continuous production.

[0028] The stabilizing base mechanism 8 includes a base 801. The bottom of the base 801 is provided with grid-shaped reinforcing ribs 802. A base pad 803 is provided at each intersection of the bottom of the reinforcing ribs 802. The base 801, as the main body of the stabilizing base mechanism 8, is in direct contact with the ground and bears the weight of the entire extruder. Its design must consider load-bearing capacity, stability, and corrosion resistance to ensure the safe and stable operation of the equipment during long-term operation. The grid-shaped reinforcing ribs 802 are provided at the bottom of the base 801 to improve its strength and rigidity and prevent deformation or damage under load. These reinforcing ribs, through reasonable layout and connection, form a stable support structure, effectively distributing the pressure on the base and enhancing its overall stability. Base pads 803 are provided at each intersection of the bottom of the reinforcing ribs 802. The base pads 803 are typically made of wear-resistant and non-slip materials, such as rubber or polyurethane. They not only increase the friction between the base and the ground, preventing the equipment from sliding or shifting during operation, but also reduce the vibration and noise generated during operation, improving the smoothness and comfort of the equipment's operation.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A co-rotating conical twin-screw extruder, comprising a housing (1), characterized in that: The top of the machine compartment (1) is provided with a bucket screen mechanism (2), and the top four corners of the bucket screen mechanism (2) are provided with anti-blocking mechanisms (3). A matching extrusion pipe (5) is provided on one side of the outer wall of the machine compartment (1). A uniformly distributed mounting frame (6) is provided on the outer wall of the extrusion pipe (5). An extrusion groove (7) is provided through the matching extrusion pipe (5). An extrusion mechanism (4) is provided through the side of the machine compartment (1) away from the matching extrusion pipe (5). A stable base mechanism (8) is provided at the bottom of both the machine compartment (1) and the mounting frame (6). The hopper screen mechanism (2) includes a feeding hopper (201). The four corners of the bottom of the feeding hopper (201) are provided with hydraulic telescopic rods (202), and the bottom of the hydraulic telescopic rods (202) is fixed to the top of the machine compartment (1). The conical bottom of the feeding hopper (201) is provided with a folding pipe (203), and the feeding hopper (201) is connected to the machine compartment (1) through the folding pipe (203). The anti-clogging mechanism (3) includes a top support rod (301), a top mounting plate (302) is provided between the top of the top support rod (301), an anti-clogging drive motor (303) is provided at the top of the top mounting plate (302), and the output end of the anti-clogging drive motor (303) extends through the top mounting plate (302) to the bottom of the top mounting plate (302). A linkage rod (304) is provided at the bottom of the top mounting plate (302), and the output end of the anti-clogging drive motor (303) is connected to the linkage rod (304). A fixed ring (305) is provided at the bottom of the linkage rod (304), and a conical spiral agitator (306) is provided at the bottom of the fixed ring (305), and the conical spiral agitator (306) is located between the inner walls of the feed hopper (201).

2. The co-rotating conical twin-screw extruder according to claim 1, characterized in that: The extrusion mechanism (4) extends through the machine compartment (1) into the matching extrusion tube (5), and the lower half of the anti-blocking mechanism (3) extends into the bucket screen mechanism (2), with the lower half of the anti-blocking mechanism (3) located between the inner walls of the bucket screen mechanism (2).

3. The co-rotating conical twin-screw extruder according to claim 1, characterized in that: The extrusion mechanism (4) includes a mounting base (401). On the side of the mounting base (401) away from the machine compartment (1), there are symmetrical extrusion drive motors (402). The output end of the extrusion drive motor (402) extends through the mounting base (401) into the machine compartment (1). On the side of the mounting base (401) away from the extrusion drive motor (402), there are symmetrical extrusion rods (403). The extrusion rods (403) are connected to the output end of the extrusion drive motor (402). The outer wall of the extrusion rods (403) is provided with circumferential threads (404).

4. The co-rotating conical twin-screw extruder according to claim 1, characterized in that: The stable base mechanism (8) includes a base (801), the bottom of which is provided with a grid-shaped reinforcing rib (802), and a base pad (803) is provided at the bottom intersection of the reinforcing ribs (802).

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