A die for an extruder

Abstract

This utility model relates to the field of extruder technology, and in particular to an extruder die head, including a die head body. A driving structure is provided on the top of the die head body, and cleaning structures are fixedly installed on both sides of the outer surface of the die head body. Through the driving structure and the cleaning structure, when the die head body is in use, the driving cylinder drives its telescopic rod to drive the connecting bent rod to push the two mounting frames to slide in the pull-out groove, so that the mounting frame located inside the pull-out groove moves out and moves to the top of the corresponding slide rail. At this time, the mounting frame on the other side enters the pull-out groove for filtration. The mounting frame located at the top of the slide rail is waiting for cleaning in the side box. At this time, by starting the water pump, the connecting pipe connected to the water tank in advance injects water into the water pump and sprays it out through the high-pressure nozzle, thereby washing away the plastic attached to the filter screen and letting it fall into the side box for processing. This achieves the purpose of quickly cleaning the filter screen after it is pushed out.

Description

Technical Field

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

[0002] Extruders are a type of plastic machinery. Based on the angle between the material flow direction at the die head and the screw centerline, extruder heads can be categorized into right-angle heads and angled heads. Screw extruders rely on the pressure and shear force generated by the rotating screw to fully plasticize and uniformly mix materials, which are then formed through a die. Plastic extruders can be broadly classified into twin-screw extruders, single-screw extruders, and less common multi-screw extruders and screwless extruders.

[0003] Existing extruder dies still have certain shortcomings in actual use: existing extruder dies lack a structure for quick cleaning of the internal filter screen. Existing technology uses hydraulic push to achieve the alternating use of two filter screens. When cleaning the filter screen, the hydraulic cylinder needs to be pushed out and then manually cleaned. The cleaning effect is not good and the efficiency is slow. Based on the shortcomings of existing technology, this utility model designs an extruder die. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a die head for an extruder that has the advantage of quickly cleaning the filter screen after it is ejected.

[0005] This utility model provides the following technical solution: a die head for an extruder, comprising a die head body, a driving structure provided on the top of the die head body, and cleaning structures fixedly installed on both sides of the outer surface of the die head body; the driving structure includes a driving cylinder, two slide rails, and two mounting frames, with filter screens fixedly installed inside the two mounting frames; the two cleaning structures include a second fixing frame fixedly installed on one side of the outer surface of the side box, a water pump fixedly installed inside the two second fixing frames, and a high-pressure nozzle fixedly installed at one end of the two water pumps.

[0006] As a preferred embodiment of this utility model, the two mounting frames are fixedly connected, and a connecting bent rod is fixedly installed at one end of the telescopic rod of the drive cylinder, and one end of the connecting bent rod is fixedly connected to a mounting frame.

[0007] As a preferred embodiment of this utility model, a side pipe is fixedly installed on one side of the outer surface of the two water pumps, and a connecting pipe is fixedly installed at one end of the two side pipes.

[0008] As a preferred embodiment of this utility model, a frame structure is fixedly installed inside the main body of the mold head, and the frame structure includes a filter box.

[0009] As a preferred embodiment of this utility model, the filter box has a pull-out groove inside, and the two sides of the filter box are fixedly connected to two slide rails.

[0010] As a preferred embodiment of this utility model, uprights are fixedly installed on both sides of the top of the filter box, and the two sides of the filter box are fixedly connected to two side boxes.

[0011] As a preferred embodiment of this utility model, uprights are fixedly installed on both sides of the top of the filter box, and a first fixing frame is fixedly installed on the top of the two uprights. The first fixing frame is fixedly connected to the drive cylinder.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This extruder die head, through a drive structure and a cleaning structure, allows the die head body to be used. During use, a drive cylinder drives the telescopic rod, which in turn moves the connecting rod to push two mounting frames into a sliding groove. This causes the mounting frame inside the groove to move out and to the top of the corresponding slide rail. Meanwhile, the other mounting frame enters the groove for filtration. The mounting frame at the top of the slide rail awaits cleaning in the side chamber. At this point, a water pump is activated, allowing water to be injected into the pump via a pre-connected water tank and sprayed out through a high-pressure nozzle. This washes away the plastic adhering to the filter screen, causing it to fall into the side chamber for further processing. This achieves the goal of quickly cleaning the filter screen after it is removed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the appearance and structure of this utility model; Figure 2 This is a schematic diagram of the frame structure of this utility model; Figure 3 This is a schematic diagram of the driving structure of this utility model; Figure 4 This is a schematic diagram of the cleaning structure of this utility model; Figure 5 This is a schematic diagram of the high-pressure nozzle structure of this utility model.

[0014] In the diagram: 1. Main body of the mold head; 2. Frame structure; 21. Filter box; 22. Pull-out groove; 23. Upright pole; 24. First fixed frame; 3. Drive structure; 31. Drive cylinder; 32. Slide rail; 33. Connecting bent rod; 34. Mounting frame; 35. Filter screen; 4. Cleaning structure; 41. Side box; 42. Second fixed frame; 43. Water pump; 44. Side pipe; 45. Connecting pipe; 46. High-pressure nozzle; 47. Folding door; 48. Pull handle. 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. 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.

[0016] Please see Figure 1-5 An extruder die head includes a die head body 1, a drive structure 3 is provided on the top of the die head body 1, and cleaning structures 4 are fixedly installed on both sides of the outer surface of the die head body 1; the drive structure 3 includes a drive cylinder 31, two slide rails 32, and two mounting frames 34, and a filter screen 35 is fixedly installed inside the two mounting frames 34; the two cleaning structures 4 include a second fixing frame 42 fixedly installed on one side of the outer surface of the side box 41, a water pump 43 fixedly installed inside the two second fixing frames 42, and a high-pressure nozzle 46 fixedly installed at one end of the two water pumps 43.

[0017] Please see Figure 2-4 Two mounting frames 34 are fixedly connected. A connecting bent rod 33 is fixedly installed at one end of the telescopic rod of the drive cylinder 31, and one end of the connecting bent rod 33 is fixedly connected to a mounting frame 34. Side pipes 44 are fixedly installed on one side of the outer surface of the two water pumps 43, and connecting pipes 45 are fixedly installed at one end of the two side pipes 44. A frame structure 2 is fixedly installed inside the mold head body 1, and the frame structure 2 includes a filter box 21. A pull-out groove 22 is opened inside the filter box 21, and the two sides of the filter box 21 are fixedly connected to two slide rails 32. Uprights 23 are fixedly installed on both sides of the top of the filter box 21, and the two sides of the filter box 21 are fixedly connected to two side boxes 41. Uprights 23 are fixedly installed on both sides of the top of the filter box 21, and a first fixing frame 24 is fixedly installed on the top of the two uprights 23. The first fixing frame 24 is fixedly connected to the drive cylinder 31.

[0018] The mounting frame 34 located at the top of the slide rail 32 is waiting to be cleaned in the side box 41. At this time, by starting the water pump 43, the connecting pipe 45 connected to the water tank in advance injects water into the water pump 43 and sprays it out through the high-pressure nozzle 46, thereby washing off the plastic attached to the filter screen 35 and letting it fall into the side box 41 to wait for processing.

[0019] Please see Figure 4-5 The bottom of the two side boxes 41 is provided with slots for connecting to sewage pipes. A folding door 47 is hinged to one side of the outer surface of the two side boxes 41, and a handle 48 is fixedly installed on one side of the outer surface of the two folding doors 47.

[0020] The bottom of the side compartment 41 is provided with a sewage outlet for guiding the flow. Sewage from cleaning the filter screen 35 can flow into the sewage pipe through the sewage outlet. At the same time, the folding door 47 can be opened by pulling the handle 48 to remove the plastic that has fallen into the side compartment 41 for disposal.

[0021] Working principle: When an extruder die head is in use, firstly, when the die head body 1 is in use, the drive cylinder 31 drives its telescopic rod to drive the connecting bent rod 33 to push the two mounting frames 34 to slide in the pull-out groove 22, so that the mounting frame 34 located inside the pull-out groove 22 moves out and moves to the top of the corresponding slide rail 32. At this time, the other mounting frame 34 enters the pull-out groove 22 for filtration. The mounting frame 34 located at the top of the slide rail 32 is waiting to be cleaned in the side box 41. At this time, by starting the water pump 43, the connecting pipe 45 connected to the water tank in advance injects water into the water pump 43 and sprays it out through the high-pressure nozzle 46, thereby washing off the plastic attached to the filter screen 35 and letting it fall into the side box 41 for processing. Then, the wastewater from cleaning the filter screen 35 can flow into the wastewater pipe through the wastewater outlet. At the same time, by pulling the handle 48, the folding door 47 can be opened to take out the plastic that has fallen into the side box 41 for processing.

[0022] 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.

Claims

1. A die head for an extruder, comprising a die head body (1), characterized in that: The top of the mold head body (1) is provided with a driving structure (3), and cleaning structures (4) are fixedly installed on both sides of the outer surface of the mold head body (1). The drive structure (3) includes a drive cylinder (31), two slide rails (32), and two mounting frames (34). Filter screens (35) are fixedly installed inside the two mounting frames (34). The two cleaning structures (4) include a second fixing frame (42) fixedly installed on one side of the outer surface of the side box (41). Water pumps (43) are fixedly installed inside the two second fixing frames (42). High-pressure nozzles (46) are fixedly installed at one end of the two water pumps (43).

2. The die head for an extruder according to claim 1, characterized in that: The two mounting frames (34) are fixedly connected, and a connecting rod (33) is fixedly installed at one end of the telescopic rod of the drive cylinder (31). One end of the connecting rod (33) is fixedly connected to a mounting frame (34).

3. The die for an extruder according to claim 1, wherein: A side pipe (44) is fixedly installed on one side of the outer surface of the two water pumps (43), and a connecting pipe (45) is fixedly installed at one end of the two side pipes (44).

4. The die for an extruder according to claim 1, wherein: The mold head body (1) is internally fixedly installed with a frame structure (2), which includes a filter box (21).

5. A die for an extruder as claimed in claim 4, wherein: The filter box (21) has a pull-out groove (22) inside, and the two sides of the filter box (21) are fixedly connected to two slide rails (32).

6. The die for an extruder according to claim 4, wherein: The top of the filter box (21) is fixedly mounted with uprights (23) on both sides, and the two sides of the filter box (21) are fixedly connected to two side boxes (41).

7. The die head for an extruder according to claim 4, characterized in that: The filter box (21) has uprights (23) fixedly installed on both sides of the top. The top of the two uprights (23) is fixedly installed with a first fixing frame (24), and the first fixing frame (24) is fixedly connected to the drive cylinder (31).

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