Multi-layer co-extrusion equipment for high-strength and high-toughness PET (Polyethylene Terephthalate) sheets

Abstract

The utility model discloses high-strength and high-toughness PET (Polyethylene Terephthalate) sheet multi-layer co-extrusion equipment, which belongs to the technical field of extruder instruments and comprises a main body, the upper end of the main body is connected with a plurality of uniformly distributed bearing frames, the upper ends of the bearing frames are connected with an extruder, one end of the extruder is communicated with an extrusion die head, a cavity is formed in the extruder, and an extrusion assembly is arranged in the extruder. A feeding assembly is arranged at the upper end of the peripheral side of the extruder, a cleaning mechanism is arranged at the end, close to the extrusion die head, of the extruder and comprises a C-shaped plate connected to the extruder, a guide hole is formed in the outer end of the C-shaped plate, a spring is connected to the outer end of the C-shaped plate, a movable plate is connected to the spring, and a guide column is connected to the end, close to the spring, of the movable plate and connected with a movable column. And screw rods are in threaded connection with the interiors of the moving column, the guide column and the moving plate. According to the utility model, the inner wall of the extrusion die head which is used for a long time can be cleaned, the phenomenon that the extrusion die head is blocked after the machine is stopped for a period of time is prevented, and the extrusion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion machinery, in particular to a multi-layer co-extrusion device for high-strength and high-toughness PET sheets. Background Technique

[0002] The extruder is an important device for PET sheet processing. With the development of engineering plastics towards high quality, high performance and low cost, the common extruders are single-screw extruders and twin-screw extruders.

[0003] In the existing technology, the die head that has been used for a long time will have the problem of blockage, which will cause the subsequent material discharge to be stuck, and finally lead to the damage of the die head and the reduction of production efficiency. Therefore, we propose a multi-layer co-extrusion device for high-strength and high-toughness PET sheets. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-layer co-extrusion device for high-strength and high-toughness PET sheets to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A multi-layer co-extrusion device for high-strength and high-toughness PET sheets, including a main body. A plurality of evenly distributed support brackets are connected to the upper end of the main body. An extruder is connected to the upper end of the support bracket. One end of the extruder is communicated with an extrusion die head. A cavity is formed in the extruder. An extrusion component is arranged in the extruder. A feeding component is arranged on the upper peripheral side of the extruder. A cleaning mechanism is arranged at one end of the extruder close to the extrusion die head. The cleaning mechanism includes a C-shaped plate connected to the extruder. A guide hole is formed in the outer end of the C-shaped plate. A spring is connected to the outer end of the C-shaped plate. The spring is connected to a moving plate. A guide post is connected to the moving plate close to the spring end. The guide post is connected to a moving column. Screws are threadedly connected in the moving column, the guide post and the moving plate. A cleaning component is connected to the end of the screw far away from the moving plate.

[0006] Preferably, the extrusion component includes a stepping motor connected to the end of the extruder far away from the extrusion die head. The output end of the stepping motor is connected to a rotating shaft. A spiral extrusion plate is connected to the outer peripheral side of the rotating shaft.

[0007] Preferably, the feeding component includes a feeding pipe communicated with the extruder. A plug seat is slidably connected to the feeding pipe.

[0008] Preferably, a rotating handle is connected to the end of the screw far away from the cleaning component. The rotating handle is arranged outside the moving plate.

[0009] Preferably, the rotating shaft is rotatably connected to the extruder through a bearing.

[0010] Preferably, cleaning hairs are provided on the outer peripheral side of the cleaning assembly, and the outer diameter of the cleaning assembly is smaller than the inner diameter of the extrusion die head.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The main body, the supporting bracket, the extruder, the cavity, the extrusion die head, the cleaning mechanism and the feeding assembly are provided. When the extruder stops for a period of time, the rotating handle can be rotated. At this time, the rotating handle drives the screw rod to rotate, thereby driving the cleaning assembly to rotate and move. Then, the moving plate is pulled. At this time, the moving plate drives the spring to perform reciprocating stretching and compressing actions. At this time, the moving plate drives the guide post and the moving column to move. At this time, the guide post and the moving plate drive the screw rod and the cleaning assembly to move. At this time, the cleaning assembly can clean the inner wall of the extrusion die head. The utility model realizes the cleaning of the inner wall of the extrusion die head that has been used for a long time, prevents the extrusion die head from being blocked after stopping for a period of time, and improves the extrusion efficiency.

[0013] 2. The extrusion assembly is provided. When the extruder is running, the stepping motor can be powered. At this time, the output end of the stepping motor drives the rotating shaft to rotate, thereby driving the spiral extrusion plate to rotate. The spiral extrusion plate extrudes the material in the cavity, improving the efficiency. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the overall structure of the present utility model;

[0016] Figure 3 It is a schematic diagram of the cleaning mechanism structure of the present utility model;

[0017] Figure 4 It is a schematic diagram of the extrusion assembly structure of the present utility model.

[0018] In the figure: 1, main body; 2, supporting bracket; 3, extruder; 4, cavity; 5, extrusion assembly; 501, stepping motor; 502, rotating shaft; 503, spiral extrusion plate; 6, extrusion die head; 7, cleaning mechanism; 701, C-shaped plate; 702, guide hole; 703, spring; 704, moving plate; 705, guide post; 706, moving column; 707, cleaning assembly; 708, screw rod; 709, rotating handle; 8, feeding assembly; 801, feeding pipe; 802, plug seat. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 , the present utility model provides a technical solution: a multi-layer co-extrusion device for high-strength and high-toughness PET sheets, including a main body 1, a plurality of evenly distributed support brackets 2 are connected to the upper end of the main body 1, an extruder 3 is connected to the upper end of the support bracket 2, an extrusion die head 6 is communicated with one end of the extruder 3, a cavity 4 is opened in the extruder 3, an extrusion assembly 5 is arranged in the extruder 3, a feeding assembly 8 is arranged on the upper outer peripheral side of the extruder 3, and a cleaning mechanism 7 is arranged at one end of the extruder 3 close to the extrusion die head 6. The cleaning mechanism 7 includes a C-shaped plate 701 connected to the extruder 3, a guide hole 702 is opened at the outer end of the C-shaped plate 701, a spring 703 is connected to the outer end of the C-shaped plate 701, the spring 703 is connected to a moving plate 704, a guide post 705 is connected to the end of the moving plate 704 close to the spring 703, the guide post 705 is connected to a moving column 706, screw rods 708 are threadedly connected in the moving column 706, the guide post 705 and the moving plate 704, and a cleaning assembly 707 is connected to the end of the screw rod 708 away from the moving plate 704.

[0021] Specifically, the extrusion assembly 5 includes a stepping motor 501 connected to the end of the extruder 3 away from the extrusion die head 6, a rotating shaft 502 is connected to the output end of the stepping motor 501, and a spiral extrusion plate 503 is connected to the outer peripheral side of the rotating shaft 502; the feeding assembly 8 includes a feeding pipe 801 communicated with the extruder 3, and a plug seat 802 is slidably connected to the feeding pipe 801; a rotating handle 709 is connected to the end of the screw rod 708 away from the cleaning assembly 707, and the rotating handle 709 is arranged outside the moving plate 704; the rotating shaft 502 is rotatably connected to the extruder 3 through a bearing; cleaning hairs are arranged on the outer peripheral side of the cleaning assembly 707, and the outer diameter dimension of the cleaning assembly 707 is smaller than the inner diameter dimension of the extrusion die head 6.

[0022] Working principle: When the extrusion operation is carried out, the seat 802 can be unplugged at this time. Next, the material is continuously added into the feeding pipe 801. Then, the stepping motor 501 is powered. At this time, the output end of the stepping motor 501 drives the rotating shaft 502 to rotate, thereby driving the spiral extrusion plate 503 to rotate. The spiral extrusion plate 503 extrudes the material in the cavity 4. When the extruder 3 stops for a period of time, the rotating handle 709 can be rotated at this time. At this time, the rotating handle 709 drives the screw rod 708 to rotate, thereby driving the cleaning assembly 707 to rotate and move. At this time, the moving plate 704 is pulled and drawn. At this time, the moving plate 704 drives the spring 703 to perform reciprocating stretching and compressing actions. At this time, the moving plate 704 drives the guide post 705 and the moving column 706 to move. At this time, the guide post 705 and the moving plate 704 drive the screw rod 708 and the cleaning assembly 707 to move. At this time, the cleaning assembly 707 cleans the inner wall of the extrusion die head 6. This utility model realizes the cleaning of the inner wall of the extrusion die head 6 that has been used for a long time, prevents the extrusion die head 6 from being blocked after stopping for a period of time, and improves the extrusion efficiency.

[0023] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength and high-toughness PET sheet multi-layer co-extrusion device, comprising a main body (1), characterized in that: The upper end of the main body (1) is connected to a plurality of evenly distributed support frames (2), the upper end of the support frame (2) is connected to an extruder (3), one end of the extruder (3) is connected to an extrusion die (6), a cavity (4) is provided in the extruder (3), an extrusion assembly (5) is arranged in the extruder (3), a feeding assembly (8) is arranged at the upper end of the outer peripheral side of the extruder (3), a cleaning mechanism (7) is arranged at one end of the extruder (3) close to the extrusion die (6), the cleaning mechanism (7) comprises a C-shaped plate (701) connected to the extruder (3), the C A guide hole (702) is provided at the outer end of the C-shaped plate (701); a spring (703) is connected to the outer end of the C-shaped plate (701); the spring (703) is connected to a movable plate (704); an end of the movable plate (704) close to the spring (703) is connected to a guide post (705); the guide post (705) is connected to a movable post (706); a screw rod (708) is threadedly connected inside the movable post (706), the guide post (705) and the movable plate (704); and an end of the screw rod (708) away from the movable plate (704) is connected to a cleaning component (707).

2. A high-strength and high-toughness PET sheet multi-layer co-extrusion equipment according to claim 1, characterized in that: The extrusion assembly (5) comprises a stepper motor (501) connected to an end of the extruder (3) away from the extrusion die head (6), the output end of the stepper motor (501) is connected to a rotating shaft (502), and the outer peripheral side of the rotating shaft (502) is connected to a spiral extrusion plate (503).

3. A high-strength and high-toughness PET sheet multi-layer co-extrusion equipment according to claim 1, characterized in that: The feeding assembly (8) comprises a feeding pipe (801) connected to the extruder (3), and the feeding pipe (801) is slidably connected to a plug seat (802).

4. The high-strength and high-toughness PET sheet multi-layer co-extrusion equipment according to claim 1, characterized in that: One end of the screw rod (708) away from the cleaning assembly (707) is connected to a rotating handle (709), and the rotating handle (709) is arranged outside the movable plate (704).

5. The high-strength and high-toughness PET sheet multi-layer co-extrusion equipment according to claim 2, characterized in that: The rotating shaft (502) is rotatably connected to the extruder (3) via a bearing.

6. The high-strength and high-toughness PET sheet multi-layer co-extrusion equipment according to claim 1, characterized in that: Cleaning bristles are arranged on the outer peripheral side of the cleaning component (707), and the outer diameter of the cleaning component (707) is smaller than the inner diameter of the extrusion die head (6).

Images