Double-screw extruder with limiting function
By designing the cylinder drive limit frame and elastic telescopic parts in the twin-screw extruder, and adjusting the diameter of the guide plate to adapt to the feeding box of different sizes, the problems of insufficient material spilling and equipment flexibility are solved, and higher applicability is achieved and security.
Patent Information
- Application Number
- CN202421094250.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-20
AI Technical Summary
When used in existing twin screw extruders, if the diameter of the feeding box is equal to or smaller than the diameter of the feeding port, the material is prone to spilling, resulting in waste and equipment damage. The equipment flexibility and applicability are insufficient, and the feeding of a specific size is required. Box, adding cost and complexity.
A twin screw extruder with limit function was designed, using cylinder to drive the limit frame to move downward, limit ring drives the limit rod to flip, guide keys displace within the guide frame, and the diameter of the guide plate is adjusted to adapt to different sizes. The feeding box is clamped with elastic telescopic parts and oblique blocks to ensure material drainage and stability.
Effectively preventing materials from spilling, increasing the equipment's adaptability and flexibility to feeding boxes of different sizes, reducing the risks of waste and equipment damage, and improving the versatility and safety of the use process.
Smart Images
Figure CN222271202U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of twin-screw extruders, in particular to a twin-screw extruder with a limiting function. Background Art
[0002] Twin-screw extruder is a kind of equipment developed on the basis of single-screw extruder. It has excellent feeding performance, mixing and plasticizing performance, exhaust performance and extrusion stability, so it is widely used in the molding processing of extruded products. A twin-screw extruder with a limit function is an advanced manufacturing equipment. It adds a limit function on the basis of the traditional twin-screw extruder to improve the accuracy and safety of the production process.
[0003] However, when the current twin-screw extruder is in use, the material processed by the extruder passes through a cooling device and a cutting device and then falls out of the discharge port. When the diameter of the receiving box is equal to or smaller than the diameter of the discharge port, the material will fall outside the receiving box. This situation may cause material waste, work environment pollution and possible equipment damage. The existing extruder can only be used for a receiving box with a diameter larger than the discharge port, which limits its flexibility and applicability during use. This may require users to purchase or customize a receiving box of a specific size, increasing costs and complexity.
[0004] Therefore, it is necessary to provide a new twin-screw extruder with a limiting function to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a twin-screw extruder with a limiting function.
[0006] The twin-screw extruder with a limiting function provided by the utility model comprises: a twin-screw extruder body, the outer wall of the twin-screw extruder body is fixedly connected with a support plate, the upper end of the support plate is provided with a conveying device, the conveying device is provided with a plurality of positioning grooves, the twin-screw extruder body is provided with a discharge port at one end above the conveying device, and a material guide device is installed at the bottom of the discharge port;
[0007] The material guiding device includes a cylinder, a limit frame, a plurality of limit rings and a plurality of limit rods. The top surface of the cylinder is fixedly connected to the bottom surface of the discharge port, the bottom surface of the cylinder is fixedly connected to the limit frame, the inner wall of the limit frame is hinged to the plurality of limit rings, the plurality of limit rings are sleeved on the plurality of limit rods, the top surfaces of the plurality of limit rods are hinged to the bottom surface of the discharge port, and the plurality of limit rods are hinged with guide plates.
[0008] Preferably, a guide rod is fixedly connected to the bottom surface of the discharge port, a limit hole is provided on the limit frame, and the guide rod passes through the limit hole.
[0009] Preferably, the guide plate comprises a guide key and a guide frame, and the guide key is fixedly connected to the guide frame.
[0010] Preferably, the guide key is an inclined right-angled trapezoidal structure, the guide frame is a right-angled trapezoidal structure with a thickness greater than the guide key and a bottom side length less than the guide key, the guide key and the oblique sides of the guide frame are fixedly connected to the guide rod, and the guide frame is provided with a groove adapted to the guide key on the side away from the guide rod.
[0011] Preferably, a plurality of elastic telescopic members are arranged in the positioning groove.
[0012] Preferably, the elastic telescopic member includes a fixing groove, a spring and an inclined block, the bottom surface of the fixing groove is fixedly connected to the inner wall of the positioning groove, the inner bottom wall of the positioning groove is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the inclined block.
[0013] Compared with the related art, the twin-screw extruder with limiting function provided by the utility model has the following beneficial effects:
[0014] The utility model provides a twin-screw extruder with a limiting function. When a material receiving box with a diameter smaller than a material outlet is used, a material guide plate can be adjusted according to the diameter of the material receiving box, a cylinder drives the limiting frame to move downward, the limiting frame drives the limiting ring, the limiting ring applies a force to the limiting rod, so that the limiting rod is flipped inward, the angle of the limiting rod is changed, the distance between multiple limiting rods is changed, a guide key is displaced in another guide frame, so that the diameter surrounded by multiple guide plates is adjusted to adapt to the diameter of the material receiving box, which can effectively prevent the problem of material spilling. The arrangement of the device enables the extruder to adapt to material receiving boxes of more sizes, thereby increasing the versatility and flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a twin-screw extruder with a limiting function provided by the utility model;
[0016] Figure 2 A schematic diagram of the structure of the material guiding device provided by the utility model;
[0017] Figure 3 A schematic diagram of the guide plate structure provided by the utility model;
[0018] Figure 4 This is a schematic diagram of the positioning groove structure provided by the utility model.
[0019] Numbers in the figure: 1. Twin-screw extruder body; 2. Support plate; 3. Conveying device; 4. Positioning groove; 5. Discharge port; 6. Cylinder; 7. Limit frame; 8. Limit ring; 9. Limit rod; 10. Guide plate; 11. Guide rod; 12. Guide key; 13. Guide frame; 14. Fixed groove; 15. Spring; 16. Bevel block. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0021] Please refer to Figure 1-Figure 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a twin-screw extruder with a limiting function provided by the utility model; Figure 2 A schematic diagram of the structure of the material guiding device provided by the utility model;
[0022] Figure 3 A schematic diagram of the guide plate structure provided by the utility model; Figure 4 This is a schematic diagram of the positioning groove structure provided by the utility model.
[0023] In the specific implementation process, Figure 1-Figure 4As shown, a twin-screw extruder with a limiting function includes a twin-screw extruder body 1, an outer wall of the twin-screw extruder body 1 is fixedly connected to a support plate 2, a conveying device 3 is arranged on the upper end of the support plate 2, and a plurality of positioning grooves 4 are arranged on the conveying device 3, a discharge port 5 is arranged at one end of the twin-screw extruder body 1 located above the conveying device 3, a material guiding device is installed at the bottom of the discharge port 5, and the material guiding device includes a cylinder 6, a limiting frame 7, a plurality of limiting rings 8 and a plurality of limiting rods 9, and the top surface of the cylinder 6 is connected to the discharge port 5 is fixedly connected, the bottom surface of the cylinder 6 is fixedly connected to the limit frame 7, the inner wall of the limit frame 7 is hinged with multiple limit rings 8, the multiple limit rings 8 are sleeved on multiple limit rods 9, the top surfaces of the multiple limit rods 9 are hinged with the bottom surface of the discharge port 5, the multiple limit rods 9 are hinged with guide plates 10, the bottom surface of the discharge port 5 is fixedly connected with a guide rod 11, a limit hole is provided on the limit frame 7, the guide rod 11 passes through the limit hole, and the guide rod 11 ensures that the limit frame 7 can move along a predetermined path under the drive of the cylinder 6 The guide plate 10 includes a guide key 12 and a guide frame 13, which are fixedly connected to the guide frame 13. The guide key 12 is a right-angled trapezoidal structure arranged obliquely, and the guide frame 13 is a right-angled trapezoidal structure whose thickness is greater than the guide key 12 and whose bottom side length is less than the guide key 12. The guide key 12 and the guide frame 13 are both fixedly connected to the guide rod 11 on their oblique sides, and a groove adapted to the guide key 12 is provided on the side of the guide frame 13 away from the guide rod 11. The interlacing between the guide key 12 and the guide frame 13 can form a "funnel" structure to drain the material. A plurality of elastic telescopic parts are arranged in the positioning groove 4, and the elastic telescopic parts include a fixed groove 14, a spring 15 and an inclined block 16. The bottom surface of the fixed groove 14 is fixedly connected to the inner wall of the positioning groove 4, and the inner bottom wall of the positioning groove 4 is fixedly connected to one end of the spring 15, and the other end of the spring 15 is fixedly connected to the inclined block 16. The inclined block 16 slopes upward, so that the placement of the receiving box is more convenient.
[0024] The working principle provided by the utility model is as follows: when using material receiving boxes with different calibers for receiving materials, the material receiving box is placed on the positioning groove 4, the inclined block 16 and the spring 15 work together to clamp the material receiving box, and the material guide plate is adjusted according to the caliber of the material receiving box. The cylinder 6 drives the limit frame 7 to move downward, and the limit frame 7 drives the limit ring 8. The limit ring 8 applies a force to the limit rod 9 to make the limit rod 9 flip inward, the angle of the limit rod 9 changes, the distance between multiple limit rods 9 changes, and a guide key 12 is displaced in another guide frame 13, so as to adjust the caliber surrounded by multiple guide plates 10 to adapt to the caliber of the material receiving box, thereby improving the flexibility and adaptability of the equipment.
[0025] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A twin-screw extruder with a limiting function, characterized in that: include: A twin-screw extruder body (1), wherein the outer wall of the twin-screw extruder body (1) is fixedly connected to a support plate (2), a conveying device (3) is arranged at the upper end of the support plate (2), a plurality of positioning grooves (4) are arranged on the conveying device (3), a discharge port (5) is arranged at one end of the twin-screw extruder body (1) located above the conveying device (3), and a material guide device is installed at the bottom of the discharge port (5); The material guiding device comprises a cylinder (6), a limit frame (7), a plurality of limit rings (8) and a plurality of limit rods (9); the top surface of the cylinder (6) is fixedly connected to the bottom surface of the material outlet (5); the bottom surface of the cylinder (6) is fixedly connected to the limit frame (7); the inner wall of the limit frame (7) is hinged to the plurality of limit rings (8); the plurality of limit rings (8) are sleeved on the plurality of limit rods (9); the top surfaces of the plurality of limit rods (9) are hinged to the bottom surface of the material outlet (5); and the plurality of limit rods (9) are hinged with guide plates (10).
2. The twin-screw extruder with a limiting function according to claim 1, characterized in that: A guide rod (11) is fixedly connected to the bottom surface of the discharge port (5), a limit hole is provided on the limit frame (7), and the guide rod (11) passes through the limit hole.
3. The twin-screw extruder with a limiting function according to claim 2, characterized in that: The guide plate (10) comprises a guide key (12) and a guide frame (13), and the guide key (12) and the guide frame (13) are fixedly connected.
4. The twin-screw extruder with a limiting function according to claim 3, characterized in that: The guide key (12) is a right-angled trapezoidal structure that is tilted, and the guide frame (13) is a right-angled trapezoidal structure that is thicker than the guide key (12) and has a shorter bottom side than the guide key (12). The guide key (12) and the guide frame (13) have oblique sides that are fixedly connected to the guide rod (11), and a groove that is adapted to the guide key (12) is provided on the side of the guide frame (13) that is away from the guide rod (11).
5. The twin-screw extruder with a limiting function according to claim 4, characterized in that: A plurality of elastic telescopic parts are arranged in the positioning groove (4).
6. The twin-screw extruder with a limiting function according to claim 5, characterized in that: The elastic telescopic member comprises a fixing groove (14), a spring (15) and an inclined block (16); the bottom surface of the fixing groove (14) is fixedly connected to the inner wall of the positioning groove (4); the inner bottom wall of the positioning groove (4) is fixedly connected to one end of the spring (15); and the other end of the spring (15) is fixedly connected to the inclined block (16).