Multi-layer co-extrusion film blowing machine with die head convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of film blowing machines, and discloses a multi-layer co-extrusion film blowing machine convenient for dismounting and mounting a die head, which comprises a bracket, a machine body fixedly connected to the upper surface of the bracket, an extruder fixedly connected to the upper surface of the machine body, a discharge pipe fixedly connected to the outer wall of the extruder, an adapter block fixedly connected to one end of the discharge pipe, and a die head fixedly connected to the adapter block. A quick release assembly is arranged on one side of the outer wall of the adapter block; and the quick release assembly comprises a first fixing block and a third fixing block, the outer wall of the first fixing block and the outer wall of the third fixing block are both arranged on one side of the outer wall of the adapter block, the outer wall of the first connecting pipe is fixedly connected with a second connecting block, the outer wall of the first connecting pipe is attached to the third fixing block, and the first connecting block is convenient to detach. The packing auger is driven by the output end of the motor and used for pushing raw materials to advance, the third fixing block is matched with the spring, so that the third fixing block and the first fixing block are matched in a sliding connection mode to achieve rapid assembly and disassembly of the die head module, and the operation process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a multi-layer co-extrusion blown film machine that is easy to disassemble and assemble. Background Technology

[0002] Multilayer co-extrusion blown film technology is widely used in the preparation of high-performance packaging materials. Through the synergistic effect of different materials, it endows films with excellent barrier properties, mechanical strength, and heat-sealing performance. To achieve multilayer co-extrusion, blown film equipment is typically equipped with multiple extruders and a complex multilayer co-extrusion die. As a key component controlling the melt distribution and composite quality of each layer, the structural precision of the die directly affects the film material's performance.

[0003] A search revealed that CN206623391U discloses a three-layer co-extrusion blown film machine without edge material, including a conveying unit, a hot-melt unit, a die, an air inlet, a lifting roller, a guide roller group, a cutting blade, and a receiving unit. The cutting blade includes a connected handle and a cutting head, wherein the cutting head extends into the film material from both sides of the flat film material to cut the film material in half. The three-layer co-extrusion blown film machine provided by this utility model has a good forming effect. It forms a three-layer co-extrusion film structure through the die head, and uses air to blow the cylindrical film material into a film bubble to adjust the thickness. The film material with adjusted thickness is then blown to the next process. In the film bubble storage stage, the film is cut into two layers by a cutting knife and stored separately. This achieves a high degree of automation and produces no edge material, thus avoiding resource waste. In contrast, the die head in this application is fixedly installed, which means that the die head assembly is connected to the main body of the equipment. This results in a long downtime operation when the equipment is maintained, the die head is replaced, or it is cleaned, which affects production efficiency and increases the labor intensity of workers. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-layer co-extrusion blown film machine that facilitates the disassembly and assembly of the die head, aiming to improve the problem that existing equipment has a fixed die head structure, which leads to long downtime for die head cleaning and replacement.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer co-extrusion blown film machine that facilitates die head disassembly and assembly, comprising a support frame, a machine body fixedly connected to the upper surface of the support frame, an extruder fixedly connected to the upper surface of the machine body, a discharge pipe fixedly connected to the outer wall of the extruder, a transition block fixedly connected to one end of the discharge pipe, and a quick-release assembly provided on one side of the outer wall of the transition block;

[0006] The quick-release assembly includes a fixing block one and a fixing block three. The outer walls of fixing block one and fixing block three are both located on one side of the outer wall of the adapter block. A connecting pipe one is fixedly connected to the outer wall of the adapter block. A connecting block two is fixedly connected to the outer wall of the connecting pipe one. The outer wall of the connecting pipe one fits against the fixing block three, facilitating the removal of the connecting block one. The outer wall of the connecting pipe one is slidably connected to the fixing block two. One end of the connecting pipe one is fixedly connected to the connecting pipe two. The outer wall of the connecting pipe two is fixedly connected to the fixing block three. The outer wall of the fixing block three is slidably connected to the fixing block one. A rotating shaft one is fixedly connected to the outer wall of the fixing block one. A spring is sleeved on the outer wall of the rotating shaft one. The outer wall of the connecting pipe one is provided with the connecting block one. One end of the connecting pipe two is fixedly connected to a mold head.

[0007] Furthermore, a second column is fixedly connected to the lower surface of the mold head, which is mainly used to push the mold head to move up and down. A first column is slidably connected to the outer wall of the second column. A base is fixedly connected to the lower surface of the second column. A first bevel gear is provided inside the first column. A handle is fixedly connected to one end of the first bevel gear. A second bevel gear is meshed with the outer wall of the first bevel gear. A lead screw is fixedly connected to the upper surface of the second bevel gear. A second rotating shaft is threaded to the outer wall of the lead screw. A limit plate is provided inside the second rotating shaft. The limit plate is mainly used to restrict the vertical movement of the lead screw. The upper surface of the lead screw is fixedly connected to the inner wall of the second column.

[0008] Furthermore, a motor is fixedly connected to the upper surface of the machine body, and an auger is fixedly connected to the output end of the motor, which drives the material to move to the discharge pipe.

[0009] Furthermore, a funnel is fixedly connected to the upper surface of the extruder, and the outer wall of the auger is disposed inside the extruder.

[0010] Furthermore, the lower surface of the bevel gear is fixedly connected to the upper surface of the base, and one end of the limiting plate is fixedly connected to the upper surface of the base.

[0011] Furthermore, the spring is disposed inside the connecting block one, and one end of the spring is fixedly connected to the outer wall of the fixing block one.

[0012] Furthermore, the outer wall of the second connecting block is fixedly connected to the outer wall of the second fixed block, and the outer wall of the second connecting pipe is slidably connected to the first connecting block.

[0013] Furthermore, one side of the outer wall of the handle is located inside the first column, and the handle is mainly used to drive the first bevel gear to rotate. The limiting plate is located inside the first column.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, an auger is driven by the output end of a motor. The auger is located inside the extruder and is used to propel the raw material forward. A funnel is provided on the upper surface of the extruder for adding the raw material. A discharge pipe is fixedly connected to the outer wall of the extruder, and one end of the discharge pipe is connected to an adapter block. A quick-release assembly is provided on one side of the outer wall of the adapter block. This assembly, through the cooperation of a fixed block three and a spring, allows the fixed block three and fixed block one to be slidably connected, and achieves automatic reset and clamping functions with the help of a rotating shaft one and a spring. Connecting pipe one and connecting pipe two are connected in sequence, and the end is connected to the die head mold. The quick-release assembly enables the quick assembly and disassembly of the die head module, simplifying the operation process.

[0016] 2. In this utility model, a second column is fixedly connected to the lower surface of the die head mold. The outer wall of the second column is slidably fitted with the first column. A base is fixedly connected to the lower end of the first column to support the die head. A first bevel gear and a second bevel gear are provided inside the first column. The first bevel gear is driven by a handle and meshes with the second bevel gear. The second bevel gear drives a lead screw to rotate. The lead screw and the rotating shaft are threaded together, allowing for vertical adjustment of the first column. The upper surface of the lead screw is fixed to the inner wall of the second column for height control. This adjustment structure helps to accurately align with the extruder's outlet, improving equipment adaptability and efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a multi-layer co-extrusion blown film machine that facilitates die head disassembly and assembly, as proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the extruder of a multi-layer co-extrusion blown film machine that facilitates die head disassembly and assembly, as proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the extruder outer wall structure of a multi-layer co-extrusion blown film machine that facilitates die head disassembly and assembly, as proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of a portion of the connecting block of a multi-layer co-extrusion blown film machine that facilitates the assembly and disassembly of the die head, as proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of a portion of the column structure of a multi-layer co-extrusion blown film machine that facilitates die head disassembly and assembly, as proposed in this utility model.

[0022] Legend:

[0023] 1. Support frame; 2. Machine body; 3. Motor; 4. Funnel; 5. Extruder; 6. Discharge pipe; 7. Adapter block; 8. Die head; 9. Column 1; 10. Handle; 11. Base; 12. Screw; 13. Connecting pipe 1; 14. Connecting block 1; 15. Rotating shaft 1; 16. Connecting block 2; 17. Spring; 18. Fixing block 1; 19. Fixing block 2; 20. Fixing block 3; 21. Bevel gear 1; 22. Bevel gear 2; 23. Rotating shaft 2; 24. Lead screw; 25. Column 2; 26. Limiting plate; 27. Connecting pipe 2. Detailed Implementation

[0024] 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 protection scope of the present utility model.

[0025] Reference Figures 1-5 The present invention provides an embodiment of a multi-layer co-extrusion blown film machine that is easy to assemble and disassemble, including a support 1. The support 1 mainly serves to fix and support the machine body 2, and the machine body 2 is fixedly connected to the upper surface of the support 1. The extruder 5 is fixedly connected to the upper surface of the machine body 2. The extruder 5 is mainly used to heat the material and stir it inside. The outer wall of the extruder 5 is fixedly connected to a discharge pipe 6, and one end of the discharge pipe 6 is fixedly connected to a transition block 7. A quick-release component is provided on one side of the outer wall of the transition block 7.

[0026] The quick-release assembly includes a fixing block 18 and a fixing block 3 20. The outer walls of both fixing blocks 18 and 3 20 are located on one side of the outer wall of the adapter block 7. A connecting pipe 13 is fixedly connected to the outer wall of the adapter block 7. A connecting block 2 16 is fixedly connected to the outer wall of the connecting pipe 13. The outer wall of the connecting pipe 13 fits against the fixing block 3 20, facilitating the removal of the connecting block 14. A fixing block 2 19 is slidably connected to the outer wall of the connecting pipe 13. A connecting pipe 2 27 is fixedly connected to one end of the connecting pipe 13. The connecting pipe 2 27 and... The mold head and mold 8 are connected to each other and play a role in fixing and conveying. The outer wall of the connecting pipe 27 is fixedly connected to the fixing block 3 20. The outer wall of the fixing block 3 20 is slidably connected to the fixing block 18. The fixing block 18 is mainly used to slide from the outer wall of the fixing block 3 20 and play a role in fixing and disassembling. The outer wall of the fixing block 18 is fixedly connected to the rotating shaft 15. The outer wall of the rotating shaft 15 is fitted with a spring 17. The outer wall of the connecting pipe 13 is provided with the connecting block 14. One end of the connecting pipe 27 is fixedly connected to the mold head and mold 8.

[0027] Reference Figures 1-5Another embodiment of this utility model: A second column 25 is fixedly connected to the lower surface of the mold head 8. The second column 25 mainly serves as a fixed support, allowing the mold head 8 to move up and down and adjust its position. The second column 25 is mainly used to push the mold head 8 up and down. A first column 9 is slidably connected to the outer wall of the second column 25. A base 11 is fixedly connected to the lower surface of the first column 9. A bevel gear 21 is provided inside the first column 9. A handle 10 is fixedly connected to one end of the bevel gear 21. The handle 10 is mainly used to drive the bevel gear 21 to rotate. A second bevel gear 22 is meshed with the outer wall of the first bevel gear 21. A lead screw 24 is fixedly connected to the upper surface of the second bevel gear 22. The lead screw 24 is mainly used to push out the second column 25, making it move vertically upward. A second rotating shaft 23 is threadedly connected to the outer wall of the lead screw 24. A limit plate 26 is provided inside the second rotating shaft 23. The limit plate 26 is mainly used to limit the vertical movement of the lead screw 24. The upper surface of the lead screw 24 is fixedly connected to the inner wall of the second column 25. A motor 3 is fixedly connected to the upper surface of body 2, and an auger 12 is fixedly connected to the output end of motor 3. The auger 12 is mainly used to drive the material to tumble and stir, and to make it enter the discharge port. The auger 12 drives the material to move to the discharge pipe 6. A funnel 4 is fixedly connected to the upper surface of extruder 5. The outer wall of auger 12 is set inside extruder 5. The lower surface of bevel gear 22 is fixedly connected to the upper surface of base 11. One end of limit plate 26 is fixedly connected to the upper surface of base 11. Spring 17 is set inside connecting block 14. The spring 17 is fixedly connected to the outer wall of the first fixed block 18 at one end, and the outer wall of the second connecting block 16 is fixedly connected to the outer wall of the second fixed block 19. The second fixed block 19 is mainly used to slide on the first connecting tube 13. When it is in contact with the third fixed block 20, it is easy for the first fixed block 18 to slide out. The outer wall of the second connecting tube 27 is slidably connected to the first connecting block 14. One side of the outer wall of the handle 10 is set inside the first column 9. The handle 10 is mainly used to drive the bevel gear 21 to rotate. The limiting plate 26 is set inside the first column 9.

[0028] Working Principle: When a multi-layer co-extrusion blown film machine with easy die head assembly and disassembly is needed, the operator feeds the raw material into the extruder 5 through the funnel 4. The motor 3 drives the auger 12 to rotate, pushing, heating, and melting the raw material inside the extruder 5. After melting, the material enters the transfer block 7 through the discharge pipe 6 and is finally conveyed to the die head mold 8 for blown film forming. During the assembly and disassembly of the die head, the quick-release assembly set on one side of the outer wall of the transfer block 7 is used for operation. When it is necessary to connect pipe 13 and connecting pipe 27, the connecting block 14 is slid horizontally, so that the fixing block 18 inside slides in through the cooperation between it and the spring 17. Below the fixing block 3 20, fix it. When it is necessary to separate the connecting pipe 2 27 from the connecting pipe 1 13, slide the connecting block 1 14 horizontally, so that the fixing block 1 18 inside is affected by the tension of the spring 17 and slides into the right side of the fixing block 2 19. After the fixing block 2 19 slides horizontally along the connecting pipe 1 13 and comes into contact with the fixing block 3 20, the fixing block 1 18 can slide out, so that the connecting block 1 14 and the connecting pipe 2 27 can be quickly separated from the connecting pipe 1 13 to achieve stable fixing and quick release of the mold head 8. The mold head can be disassembled and assembled without the use of tools, which effectively improves the replacement efficiency and maintenance convenience.

[0029] In addition, to facilitate the disassembly and assembly of the die head mold 8, and to ensure the adjustability and stability of the die head position height, a second column 25 is fixedly connected to the lower surface of the die head mold 8. The outer wall of the second column 25 is slidably connected to the first column 9, allowing the die head to move up and down along the column axis. The lower end of the first column 9 is fixedly connected to the base 11. The operator can drive the first bevel gear 21 to rotate through the handle 10. The first bevel gear 21 meshes with the second bevel gear 22, causing the second bevel gear 22 to rotate synchronously. The upper surface of the second bevel gear 22 is fixedly connected to the lead screw 24. When rotating, the lead screw 24 rotates, causing the second rotating shaft 23, which is threaded to it, to move axially, causing the first column 9 to slide up and down as a whole, realizing the position adjustment of the die head mold 8. This ensures the safety and structural stability of the adjustment mechanism. The handle 10 is located inside the first column 9 for easy operation and helps to accurately align with the extruder outlet 5, improving assembly efficiency.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layer co-extrusion blown film machine that facilitates die head assembly and disassembly, comprising a support frame (1), characterized in that: The upper surface of the bracket (1) is fixedly connected to the body (2), the upper surface of the body (2) is fixedly connected to the extruder (5), the outer wall of the extruder (5) is fixedly connected to the discharge pipe (6), one end of the discharge pipe (6) is fixedly connected to the adapter block (7), and a quick-release assembly is provided on one side of the outer wall of the adapter block (7). The quick-release assembly includes a first fixing block (18) and a third fixing block (20). The outer walls of the first fixing block (18) and the third fixing block (20) are both located on one side of the outer wall of the adapter block (7). The outer wall of the adapter block (7) is fixedly connected to a first connecting pipe (13). The outer wall of the first connecting pipe (13) is fixedly connected to a second connecting block (16). The outer wall of the first connecting pipe (13) fits against the third fixing block (20) to facilitate the removal of the first connecting block (14). The outer wall of the first connecting pipe (13) is slidably connected to a second fixing block (19). One end of the connecting pipe 1 (13) is fixedly connected to the connecting pipe 2 (27), the outer wall of the connecting pipe 2 (27) is fixedly connected to the fixing block 3 (20), the outer wall of the fixing block 3 (20) is slidably connected to the fixing block 1 (18), the outer wall of the fixing block 1 (18) is fixedly connected to the rotating shaft 1 (15), the outer wall of the rotating shaft 1 (15) is sleeved with a spring (17), the outer wall of the connecting pipe 1 (13) is provided with the connecting block 1 (14), and one end of the connecting pipe 2 (27) is fixedly connected to the mold head (8).

2. The multi-layer co-extrusion blown film machine with easy die head disassembly and assembly according to claim 1, characterized in that: The lower surface of the mold head (8) is fixedly connected to a second column (25), which is mainly used to push the mold head (8) to move up and down. The outer wall of the second column (25) is slidably connected to a first column (9), and the lower surface of the first column (9) is fixedly connected to a base (11). The first column (9) is provided with a first bevel gear (21), and one end of the first bevel gear (21) is fixedly connected to a handle (10). The outer wall of the first bevel gear (21) is meshed with a second bevel gear (22), and the upper surface of the second bevel gear (22) is fixedly connected to a lead screw (24). The outer wall of the lead screw (24) is threadedly connected to a second rotating shaft (23), and the second rotating shaft (23) is provided with a limit plate (26). The limit plate (26) is mainly used to restrict the vertical movement of the lead screw (24), and the upper surface of the lead screw (24) is fixedly connected to the inner wall of the second column (25).

3. A multi-layer co-extrusion blown film machine with easy die head disassembly and assembly according to claim 1, characterized in that: A motor (3) is fixedly connected to the upper surface of the machine body (2), and an auger (12) is fixedly connected to the output end of the motor (3). The auger (12) drives the material to move to the discharge pipe (6).

4. A multi-layer co-extrusion blown film machine with easy die head disassembly and assembly according to claim 3, characterized in that: The upper surface of the extruder (5) is fixedly connected to a funnel (4), and the outer wall of the auger (12) is set inside the extruder (5).

5. A multi-layer co-extrusion blown film machine for easy die head disassembly and assembly according to claim 2, characterized in that: The lower surface of the bevel gear (22) is fixedly connected to the upper surface of the base (11), and one end of the limiting plate (26) is fixedly connected to the upper surface of the base (11).

6. A multi-layer co-extrusion blown film machine with easy die head disassembly and assembly according to claim 1, characterized in that: The spring (17) is located inside the connecting block (14), and one end of the spring (17) is fixedly connected to the outer wall of the fixing block (18).

7. A multi-layer co-extrusion blown film machine for easy die head disassembly and assembly according to claim 1, characterized in that: The outer wall of the second connecting block (16) is fixedly connected to the outer wall of the second fixing block (19), and the outer wall of the second connecting pipe (27) is slidably connected to the first connecting block (14).

8. A multi-layer co-extrusion blown film machine with easy die head disassembly and assembly according to claim 2, characterized in that: The handle (10) is located inside the column (9) on one side of its outer wall. The handle (10) is mainly used to drive the bevel gear (21) to rotate. The limiting plate (26) is located inside the column (9).

Images