Modular screw extrusion device

Abstract

The utility model is suitable for screw extrusion equipment technical field provides a modularization screw extrusion device, include: undercarriage, fixed connection in the undercarriage top surface one side's bottom cavity, rotation is connected on the bottom cavity's upper cavity, the dismounting mechanism that assembles on the bottom cavity, the dismounting mechanism is used for the quick dismounting of modularization screw, installs the discharge gate in the bottom cavity discharge side, installs the feed port in the upper cavity upside. The modularization screw extrusion device provided by the scheme has solved the problems of complicated dismounting and maintenance, difficult replacement of screw assembly, poor sealing of cavity, uneven material conveying of existing device, through the cooperation of closed cavity, thread rod and fixed nut locking and dismounting mechanism, realizes the quick dismounting of screw, stable sealing and continuous uniform extrusion of cavity, improves the operation convenience, maintenance efficiency and production continuity.

Description

Technical Field

[0001] This utility model belongs to the technical field of screw extrusion equipment, and in particular relates to a modular screw extrusion device. Background Technology

[0002] Screw extruders are mechanical devices used for the continuous conveying, compression, and plasticization of materials. The core component is a screw or screw blade, which drives the material to be axially propelled along the cavity through rotation, achieving uniform extrusion and mixing. This equipment is widely used in industries such as plastics, chemicals, and food. Its modular design allows for quick screw replacement and maintenance, improving production efficiency and operational flexibility.

[0003] However, existing screw extrusion devices typically use fixed or welded connections, making the disassembly and maintenance of the upper and lower chambers and screw assembly complex. The screw assembly cannot be replaced quickly, resulting in uneven stress on the material during extrusion, unstable conveying, cumbersome operation steps, and poor flexibility, thus limiting the efficient continuous production of the equipment. Utility Model Content

[0004] This utility model provides a modular screw extrusion device, which aims to solve the problems of existing screw extrusion devices that usually use fixed or welded connections, have complicated disassembly and maintenance of the upper and lower cavities and screw assembly, and cannot quickly replace the screw assembly, resulting in uneven force on the material during extrusion, unstable conveying, cumbersome operation steps and poor flexibility, thus limiting the efficient and continuous production of the equipment.

[0005] This utility model is implemented as follows: a modular screw extrusion device includes: a base frame; a bottom cavity fixedly connected to one side of the top surface of the base frame; an upper cavity rotatably connected to the bottom cavity; a disassembly mechanism assembled on the bottom cavity, the disassembly mechanism being used for quick disassembly of the modular screw; a discharge port installed on the discharge side of the bottom cavity; and a feed port installed on the upper side of the upper cavity.

[0006] Preferably, the disassembly mechanism includes: an extension frame fixedly connected to one end of the bottom cavity, a rotating shaft being fitted into one side of the extension frame, one side of the rotating shaft being connected to the output end of a motor, a groove being formed on one side of the surface of the rotating shaft, a rotating rod being fitted into the groove, a spiral blade being mounted on the surface of the rotating rod, and the rotating shaft and the rotating rod being rigidly connected to each other by bolts; and a threaded rod fixedly connected to the opposite side of the bottom cavity, with a fixing nut threaded onto the surface of the threaded rod.

[0007] Preferably, the bottom cavity and the upper cavity form a closed circular cavity, and the upper cavity and the bottom cavity form a mutually rotating structure.

[0008] Preferably, the surface of the threaded rod extends through the upper cavity, and two sets of threaded rods are provided in the lower cavity, which are symmetrically distributed.

[0009] Preferably, one side of the fixing nut is in contact with the outer edge of the upper cavity, and the bottom cavity and the upper cavity form a rigid closed structure through the threaded rod and the fixing nut.

[0010] Preferably, the main body of the spiral blade is disposed in a closed cavity between the bottom cavity and the upper cavity, and the spiral blade and the rotating rod rotate synchronously.

[0011] Preferably, the main body of the motor is supported on the bottom cavity, and the rotating shaft forms a mutually rotating structure with the extension frame through the motor.

[0012] Preferably, the radial diameter of the groove matches the radial diameter of the rotating rod, and the rotating rod rotates synchronously with the rotating shaft via bolts.

[0013] Compared with related technologies, the modular screw extrusion device provided by this utility model has the following advantages: The device forms a closed circular cavity through the bottom cavity and the upper cavity, and uses a threaded rod and a fixing nut to achieve a tight lock of the cavity. This ensures that the material is subjected to uniform force when the screw blades rotate, effectively preventing material leakage and unstable conveying. At the same time, the disassembly mechanism works with the rotating shaft, rotating rod and screw blades to quickly loosen the cavity, separate the upper and lower cavities, and remove or replace the screw assembly as a whole without complicated tools. This achieves modular operation, improves maintenance efficiency, and effectively overcomes the shortcomings of traditional screw extrusion devices, such as cumbersome disassembly, difficult maintenance and unstable extrusion quality. Attached Figure Description

[0014] Figure 1 This is a side view of the appearance structure of this utility model; Figure 2 This is a partial unfolded side view of the various parts and corresponding components of this utility model during assembly. Figure 3 This is an exploded side view of the various parts and corresponding components of this utility model. Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0015] In the diagram: 1. Base frame; 2. Bottom cavity; 3. Upper cavity; 4. Disassembly mechanism; 401. Extension frame; 402. Threaded rod; 403. Rotating shaft; 404. Fixing nut; 405. Motor; 406. Groove; 407. Rotating rod; 408. Spiral blade; 409. Bolt; 5. Discharge port; 6. Inlet port. Detailed Implementation

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] A preferred embodiment of the modular screw extrusion device provided by this utility model is, for example... Figures 1 to 5 As shown: A modular screw extrusion device includes: a base frame 1; a bottom cavity 2 fixedly connected to one side of the top surface of the base frame 1; an upper cavity 3 rotatably connected to the bottom cavity 2; a disassembly mechanism 4 assembled on the bottom cavity 2, the disassembly mechanism 4 being used for quick disassembly of the modular screw; a discharge port 5 installed on the discharge side of the bottom cavity 2; and a feed port 6 installed on the upper side of the upper cavity 3.

[0019] In this embodiment, when the motor 405 is powered on and started, its output end drives the connected rotating shaft 403 to rotate continuously. The groove 406 on the surface of the rotating shaft 403 and the internally fitted rotating rod 407 form a stable fitted connection structure. The two are rigidly fixed by bolts 409, so that the power of the motor 405 can be efficiently transmitted to the rotating rod 407, thereby driving the spiral blade 408 installed on the surface of the rotating rod 407 to rotate synchronously. The spiral blade 408 is located in the closed circular cavity formed between the bottom cavity 2 and the upper cavity 3. When its spiral pushing surface rotates, it generates axial extrusion force on the material entering the cavity, so that the material is gradually pushed along the inside of the cavity to achieve uniform extrusion. After the material enters the upper cavity 3 through the feed port 6, it is discharged into the bottom cavity 2 along the spiral flow channel under the continuous pushing and compression action of the spiral blade 408. The screw moves laterally and is eventually output to the subsequent process through the discharge port 5. During operation, the upper cavity 3 and the lower cavity 2 are tightly fitted together by the threaded rod 402 and the fixing nut 404, forming a stable rigid closed structure to ensure the sealing and uniform force distribution inside the cavity. When it is necessary to replace or maintain the modular screw, the disassembly mechanism 4 can be activated. The operator loosens the fixing nut 404 to disengage the threaded rod 402 from the upper cavity 3, thereby opening the upper cavity 3. Then, by loosening the bolt 409 between the rotating rod 407 and the rotating shaft 403, when the bolt 409 is completely loosened, the rotating rod 407 together with the spiral blade 408 can be disassembled from the groove 406, and can be taken out or replaced as a whole. This realizes the modular and rapid disassembly and assembly of the screw assembly, which is convenient for maintenance and improves the flexibility and continuity of extrusion production.

[0020] In a further preferred embodiment of this utility model, the disassembly mechanism 4 includes: an extension frame 401 fixedly connected to one end of the bottom cavity 2, a rotating shaft 403 fitted on one side of the extension frame 401, one side of the rotating shaft 403 being connected to the output end of the motor 405, a groove 406 being provided on one side of the surface of the rotating shaft 403, a rotating rod 407 being fitted inside the groove 406, a spiral blade 408 being installed on the surface of the rotating rod 407, and the rotating shaft 403 and the rotating rod 407 being rigidly connected to each other by bolts 409; and a threaded rod 402 fixedly connected to the opposite side of the bottom cavity 2, with a fixing nut 404 threadedly connected to the surface of the threaded rod 402.

[0021] In this embodiment, the disassembly mechanism 4 serves to quickly disassemble and assemble the screw assembly and separate the cavity. Through the cooperation of the extension frame 401 set on one side of the bottom cavity 2 with the rotating shaft 403 and the motor 405, when it is necessary to replace or maintain the internal spiral blade 408 and rotating rod 407, the operator can untighten the fixing nut 404 and the upper cavity 3 to release the locking state of the fixing nut 404 and the upper cavity 3, so that the bottom cavity 2 and the upper cavity 3 can be quickly separated and opened. After that, by loosening and removing the bolt 409 between the rotating rod 407 and the rotating shaft 403, it is easy to remove or replace the internal components as a whole, which improves the maintenance efficiency of the device and the convenience of screw replacement, while ensuring the sealing and structural stability when the cavity is closed.

[0022] In a further preferred embodiment of the present invention, the bottom cavity 2 and the upper cavity 3 form a closed circular cavity, and the upper cavity 3 and the bottom cavity 2 form a mutually rotating structure.

[0023] In this embodiment, the closed structure of the bottom cavity 2 and the upper cavity 3 is used to form a sealed extrusion cavity to ensure that the material is subjected to uniform force and continuous conveying when the spiral blade 408 rotates. The rigid closure and reliable sealing of the cavity are achieved by the locking fit between the threaded rod 402 and the fixing nut 404, which prevents material leakage and maintains stable extrusion pressure.

[0024] In a further preferred embodiment of the present invention, the surface of the threaded rod 402 extends through the upper cavity 3, and two sets of threaded rods 402 are provided in the bottom cavity 2 and are symmetrically distributed.

[0025] In this embodiment, the threaded rod 402 serves to connect and lock the two cavities. It enables the upper cavity 3 to open quickly through threaded transmission. During operation, the threaded rod 402 ensures that the upper cavity 3 and the bottom cavity 2 are stably fitted together to form a sealed cavity. It can be quickly loosened during disassembly, realizing the separation of the cavities and the convenient replacement of the modular screw.

[0026] In a further preferred embodiment of the present invention, one side of the fixing nut 404 is in contact with the outer edge of the upper cavity 3, and the bottom cavity 2 and the upper cavity 3 form a rigid closed structure through the threaded rod 402 and the fixing nut 404.

[0027] In this embodiment, the fixing nut 404 is used to lock the upper cavity 3 and the lower cavity 2. It achieves the sealing and fixing of the cavity through the threaded engagement with the threaded rod 402. It prevents the cavity from loosening or leaking material in the working state. It can be quickly loosened during disassembly to separate the upper and lower cavities, which facilitates the maintenance and replacement of the screw assembly.

[0028] In a further preferred embodiment of the present invention, the main body of the spiral blade 408 is disposed in the closed cavity between the bottom cavity 2 and the upper cavity 3, and the spiral blade 408 and the rotating rod 407 rotate synchronously.

[0029] In this embodiment, the spiral blade 408 is mounted on the surface of the rotating rod 407 and is used to push and squeeze the material in the closed cavity. It rotates synchronously with the rotating rod 407 and continuously transports the material entering through the feed port 6 along the axial direction of the cavity to the discharge port 5, realizing stable extrusion and mixing of the material. It is the core component of the device to realize the extrusion function.

[0030] In a further preferred embodiment of the present invention, the main body of the motor 405 is supported on the bottom cavity 2, and the rotating shaft 403 forms a mutually rotating structure with the extension frame 401 through the motor 405.

[0031] In this embodiment, the motor 405 provides power to the entire extrusion system. Its output end drives the rotating shaft 403 to rotate, and the power is transmitted to the rotating rod 407 and the spiral blade 408 through the bolt 409 to realize the continuous pushing and extrusion of materials.

[0032] In a further preferred embodiment of the present invention, the radial diameter of the groove 406 matches the radial diameter of the rotating rod 407, and the rotating rod 407 rotates synchronously with the rotating shaft 403 via bolts 409.

[0033] In this embodiment, the groove 406 and the rotating rod 407 form a stable interlocking transmission structure. The groove 406 is used to limit the radial position of the rotating rod 407 to ensure its rotational coaxiality accuracy. The two are rigidly connected by bolts 409, so that the rotational power output by the motor 405 is efficiently transmitted to the spiral blade 408, ensuring the smoothness and continuity of the material extrusion process.

[0034] In summary, the device drives the rotating shaft 403 to rotate via the motor 405. The rotational power is transmitted to the rotating rod 407 through the groove 406 and bolt 409, thereby driving the spiral blade 408 to rotate in the closed cavity, realizing the pushing and extrusion of materials. The material enters through the feed port 6, is continuously conveyed by the spiral blade 408, and is discharged through the discharge port 5. The upper and lower cavities are sealed and locked by the threaded rod 402 and the fixing nut 404. The disassembly mechanism 4 can quickly loosen the structure, realizing the rapid replacement and maintenance of the screw module.

[0035] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0036] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A modular screw extrusion device, characterized in that, include: Base frame (1); A bottom cavity (2) is fixedly connected to one side of the top surface of the base frame (1); Rotate the upper cavity (3) connected to the bottom cavity (2); A disassembly mechanism (4) is mounted on the bottom cavity (2), the disassembly mechanism (4) being used for the quick disassembly of the modular screw; The discharge port (5) is installed on the discharge side of the bottom cavity (2); The feed inlet (6) is installed on the upper side of the upper cavity (3).

2. The modular screw extrusion device as described in claim 1, characterized in that, The disassembly mechanism (4) includes: An extension frame (401) is fixedly connected to one end of the bottom cavity (2). A rotating shaft (403) is fitted into one side of the extension frame (401). One side of the rotating shaft (403) is connected to the output end of the motor (405). A groove (406) is provided on one side of the surface of the rotating shaft (403). A rotating rod (407) is fitted into the inside of the groove (406). A spiral blade (408) is installed on the surface of the rotating rod (407). The rotating shaft (403) and the rotating rod (407) are rigidly connected to each other by bolts (409). A threaded rod (402) is fixedly connected to the positive side of the bottom cavity (2), and a fixing nut (404) is threadedly connected to the surface of the threaded rod (402).

3. The modular screw extrusion device as described in claim 1, characterized in that, The bottom cavity (2) and the upper cavity (3) form a closed circular cavity, and the upper cavity (3) and the bottom cavity (2) form a mutually rotating structure.

4. The modular screw extrusion device as described in claim 2, characterized in that, The surface of the threaded rod (402) extends through the upper cavity (3), and two sets of the threaded rod (402) are provided in the bottom cavity (2) and are symmetrically distributed.

5. The modular screw extrusion device as described in claim 2, characterized in that, One side of the fixing nut (404) is in contact with the outer edge of the upper cavity (3), and the bottom cavity (2) and the upper cavity (3) form a rigid closed structure through the threaded rod (402) and the fixing nut (404).

6. The modular screw extrusion device as described in claim 2, characterized in that, The main body of the spiral blade (408) is set in a closed cavity between the bottom cavity (2) and the upper cavity (3), and the spiral blade (408) and the rotating rod (407) rotate synchronously.

7. The modular screw extrusion device as described in claim 2, characterized in that, The main body of the motor (405) is supported on the bottom cavity (2), and the rotating shaft (403) forms a mutually rotating structure with the extension frame (401) through the motor (405).

8. The modular screw extrusion device as described in claim 2, characterized in that, The radial diameter of the groove (406) matches the radial diameter of the rotating rod (407), and the rotating rod (407) rotates synchronously with the rotating shaft (403) through bolts (409).

Images