An extruder nozzle structure

Abstract

This utility model relates to the field of extruders and discloses an extruder nozzle structure, including an extrusion barrel, an extrusion head rotatably connected to the lower end of the extrusion barrel, a fixed bracket fixedly connected to the upper end of the extrusion barrel, a guide tube eccentrically arranged on one side inside the extrusion barrel fixedly connected to the fixed bracket, a fixed disk fixedly connected inside the extrusion head, the fixed disk having multiple mounting holes evenly arranged in a circular array and cooperating with the guide tube, and extrusion nozzles with different extrusion flow rates fixedly connected to the mounting holes respectively; an adjusting plate slidably connected to the upper end of the fixed disk inside the extrusion head, a connecting pipe for connecting the guide tube and the extrusion nozzles fixedly connected to the adjusting plate, the number of connecting pipes being the same as the number of extrusion nozzles; and an adjusting mechanism for driving the adjusting plate to slide up and down. The advantage of this utility model compared to the prior art is that it can quickly adjust different extrusion flow rates according to production needs, adapting to production requirements.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to an extruder nozzle structure. Background Technology

[0002] Extruders are the most widely used equipment in polymer processing. After the polymer is mixed with various additives, it is fed into the extruder to melt and further mix evenly. Finally, it is extruded through the extrusion nozzle. However, the size of the extrusion nozzle used in existing extruders is fixed. It is necessary to replace the extrusion head through a cumbersome disassembly process, making it difficult to adjust different extrusion flow rates according to production needs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide an extruder nozzle structure that can quickly adjust different extrusion flow rates according to production needs and adapt to production requirements.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an extruder nozzle structure, including an extrusion cylinder, an extrusion head rotatably connected to the lower end of the extrusion cylinder, a fixed bracket fixedly connected to the upper end of the extrusion cylinder, a guide tube eccentrically arranged on one side inside the extrusion cylinder fixedly connected to the fixed bracket, a fixed disk fixedly connected inside the extrusion head, the fixed disk having a plurality of mounting holes evenly arranged in a circular array and cooperating with the guide tube, and extrusion nozzles with different extrusion flow rates fixedly connected to the mounting holes respectively; an adjusting plate slidably connected to the upper end of the fixed disk inside the extrusion head, a connecting pipe for connecting the guide tube and the extrusion nozzles fixedly connected to the adjusting plate, the number of the connecting pipes being the same as the number of extrusion nozzles, and an adjusting mechanism for driving the adjusting plate to slide up and down on the extrusion head.

[0005] As an improvement, the adjustment mechanism includes an adjustment block fixedly connected to one side of the adjustment plate, an adjustment sliding hole that cooperates with the adjustment block on the extrusion head, a guide sleeve fixedly connected to the upper end of the fixed plate, a guide block that is slidably inserted into the guide sleeve fixedly connected to the bottom surface of the adjustment plate, and a support spring fixedly connected to the bottom surface of the guide block.

[0006] As an improvement, an adjustment ring is fixedly connected to the outer wall of the adjustment block and slidably sleeved on the outer wall of the extrusion head.

[0007] As an improvement, a rotating sleeve is fixedly connected to the upper end of the extruder head, the lower end of the extruder cylinder is rotatably connected to the rotating sleeve, an annular rotating ring is fixedly connected to the outer wall of the extruder cylinder, and an annular groove that mates with the annular rotating ring is provided on the inner wall of the rotating sleeve.

[0008] As an improvement, the lower end of the extrusion cylinder is provided with the same number of movable slots as the extrusion nozzles and evenly arranged in a circular array. A movable column is slidably inserted into the movable slot, and a positioning spring that cooperates with the movable column is fixedly connected in the movable slot. A positioning ball is fixedly connected to the bottom surface of the movable column. The upper end of the extrusion head is located on one side of the extrusion nozzle and has a positioning slot that cooperates with the positioning ball.

[0009] The advantages of this utility model compared with the prior art are as follows: by rotating and adjusting the extrusion head along the lower end of the extrusion cylinder, the guide tube is aligned with different extrusion nozzles. The adjustment mechanism drives the adjustment plate to slide up and down, so that the lower end of the connecting tube is inserted into the guide tube, and the guide tube is connected to the extrusion nozzle below. Thus, the extrusion nozzles with different extrusion flow rates can be adjusted according to production needs. Attached Figure Description

[0010] Figure 1 This is an exploded view of the extruder nozzle structure of this utility model.

[0011] Figure 2 This is a three-dimensional view of the extruder nozzle structure of this utility model.

[0012] Figure 3 This is a cross-sectional view of the extruder nozzle structure of this utility model.

[0013] Figure 4 This is an enlarged view of part A of the extrusion nozzle structure of an extruder according to this utility model.

[0014] As shown in the figure: 1. Extrusion cylinder; 2. Extrusion head; 3. Feed guide tube; 4. Extrusion nozzle; 5. Fixed bracket; 6. Fixed plate; 7. Mounting hole; 8. Adjusting plate; 9. Connecting pipe; 10. Adjusting block; 11. Adjusting ring; 12. Adjusting slide hole; 13. Movable column; 14. Positioning spring; 15. Positioning ball; 16. Positioning groove; 17. Rotating sleeve; 18. Annular groove; 19. Annular rotating ring; 20. Guide block; 21. Guide sleeve; 22. Support spring; 23. Movable groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 4As shown, an extruder nozzle structure includes an extrusion cylinder 1, an extrusion head 2 rotatably connected to the lower end of the extrusion cylinder 1, a rotating sleeve 17 fixedly connected to the upper end of the extrusion head 2, the lower end of the extrusion cylinder 1 rotatably connected inside the rotating sleeve 17, an annular rotating ring 19 fixedly connected to the outer wall of the extrusion cylinder 1, an annular groove 18 provided on the inner wall of the rotating sleeve 17 that mates with the annular rotating ring 19, and movable grooves 23, the same number as the extrusion nozzles 4 and evenly arranged in an annular array, provided at the lower end of the extrusion cylinder 1. Movable columns 13 are slidably inserted into the movable grooves 23, and movable columns 13 are fixedly connected to the movable grooves 23. The movable column 13 is fitted with a positioning spring 14. A positioning ball 15 is fixedly connected to the bottom surface of the movable column 13. A positioning groove 16 is located on one side of the extrusion nozzle 4 at the upper end of the extrusion head 2 and is fitted with the positioning ball 15. A fixed bracket 5 is fixedly connected to the upper end of the extrusion cylinder 1. A guide tube 3 is fixedly connected to the fixed bracket 5 and is located eccentrically arranged on one side inside the extrusion cylinder 1. A fixed disk 6 is fixedly connected inside the extrusion head 2. The fixed disk 6 is provided with a plurality of mounting holes 7 evenly arranged in a circular array and fitted with the guide tube 3. Extrusion nozzles 4 with different extrusion flow rates are fixedly connected to the mounting holes 7 respectively.

[0017] An adjusting plate 8 is slidably connected to the upper end of the fixed disk 6 inside the extrusion head 2. A connecting pipe 9 for connecting the guide tube 3 and the extrusion nozzle 4 is fixedly connected to the adjusting plate 8. The number of connecting pipes 9 is the same as the number of extrusion nozzles 4. The upper end of the connecting pipe 9 can be slidably inserted into the inner wall of the guide tube 3, and the lower end can be slidably inserted into the inner wall of the extrusion nozzle 4 to achieve a sealed connection between the guide tube 3 and the extrusion nozzle 4. The extrusion head 2 is provided with an adjusting mechanism for driving the adjusting plate 8 to slide up and down. The adjusting mechanism includes an adjusting block 10 fixedly connected to one side of the adjusting plate 8. The extrusion head 2 is provided with an adjusting sliding hole 12 that cooperates with the adjusting block 10. A guide sleeve 21 is fixedly connected to the upper end of the fixed disk 6. A guide block 20 is fixedly connected to the bottom surface of the adjusting plate 8 and slidably inserted into the guide sleeve 21. A support spring 22 is fixedly connected to the bottom surface of the guide block 20. An adjusting ring 11 that is slidably sleeved on the outer wall of the adjusting block 10 is fixedly connected to the outer wall of the extrusion head 2.

[0018] In practical use, when it is necessary to adjust the extrusion nozzles with different flow rates, the adjusting ring 11 is turned to drive the adjusting block 10 to slide downwards. The adjusting block 10 drives the adjusting plate 8 to slide downwards, causing the guide block 20 to slide into the guide sleeve 21. The extrusion support spring 22 undergoes compression deformation. At the same time, the adjusting plate 8 drives the upper end of the connecting pipe 9 to extend from the lower end of the feed pipe 3. The extrusion head 2 is rotated, causing the extrusion head 2 to slide along the bottom surface of the extrusion cylinder 1. During the rotation of the extrusion head 2, the extrusion positioning ball 15 slides out from the positioning groove 16, and at the same time drives the movable column 13 to slide into the movable groove 23. The extrusion positioning spring 14 undergoes compression deformation. When the positioning ball 15 rotates to another positioning groove 16, the restoring force of the positioning spring 14 pushes the positioning ball 15 to slide into the positioning groove 16. Each different extrusion nozzle corresponds to a different positioning ball 15. Therefore, after the positioning ball 15 is inserted into a new positioning groove 16, the feed pipe 3 rotates to be directly above a new extrusion nozzle 4.

[0019] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An extruder nozzle structure, comprising an extrusion barrel (1), wherein an extrusion head (2) is rotatably connected to the lower end of the extrusion barrel (1), characterized in that: A fixed bracket (5) is fixedly connected to the upper end of the extrusion cylinder (1). A guide tube (3) located eccentrically arranged on one side inside the extrusion cylinder (1) is fixedly connected to the fixed bracket (5). A fixed disk (6) is fixedly connected inside the extrusion head (2). The fixed disk (6) is provided with a plurality of mounting holes (7) evenly arranged in a ring array and cooperating with the guide tube (3). Extrusion nozzles (4) with different extrusion flow rates are fixedly connected to the mounting holes (7). An adjusting plate (8) is slidably connected inside the extrusion head (2) at the upper end of the fixed plate (6). A connecting pipe (9) for connecting the feed guide pipe (3) and the extrusion nozzle (4) is fixedly connected to the adjusting plate (8). The number of connecting pipes (9) is the same as the number of extrusion nozzles (4). An adjusting mechanism for driving the adjusting plate (8) to slide up and down is provided on the extrusion head (2).

2. The extruder nozzle structure according to claim 1, characterized in that: The adjustment mechanism includes an adjustment block (10) fixedly connected to one side of the adjustment plate (8), an adjustment sliding hole (12) that cooperates with the adjustment block (10) on the extrusion head (2), a guide sleeve (21) fixedly connected to the upper end of the fixed plate (6), a guide block (20) that is slidably inserted into the guide sleeve (21) fixedly connected to the bottom surface of the adjustment plate (8), and a support spring (22) fixedly connected to the bottom surface of the guide block (20).

3. The extruder nozzle structure according to claim 2, characterized in that: The outer wall of the adjusting block (10) is fixedly connected to an adjusting ring (11) that is slidably sleeved on the outer wall of the extrusion head (2).

4. The extruder nozzle structure according to claim 1, characterized in that: The upper end of the extrusion head (2) is fixedly connected to a rotating sleeve (17), the lower end of the extrusion cylinder (1) is rotatably connected to the rotating sleeve (17), the outer wall of the extrusion cylinder (1) is fixedly connected to an annular rotating ring (19), and the inner wall of the rotating sleeve (17) is provided with an annular rotating groove (18) that cooperates with the annular rotating ring (19).

5. The extruder nozzle structure according to claim 4, characterized in that: The lower end of the extrusion cylinder (1) is provided with the same number of movable grooves (23) as the extrusion nozzles (4) and evenly arranged in a circular array. Movable columns (13) are slidably inserted into the movable grooves (23). Positioning springs (14) that cooperate with the movable columns (13) are fixedly connected in the movable grooves (23). Positioning balls (15) are fixedly connected to the bottom surface of the movable columns (13). The upper end of the extrusion head (2) is located on one side of the extrusion nozzles (4) and has a positioning groove (16) that cooperates with the positioning balls (15).

Images