Production equipment of aluminum-plastic composite pipe

Abstract

The invention discloses production equipment of an aluminum-plastic composite pipe, and relates to the technical field of aluminum-plastic composite pipe production, in the production equipment, an aluminum strip sequentially passes through a vertical forming module and a horizontal forming module to be gradually formed into an aluminum pipe; the forming cavity is formed, the plastic inner pipe can penetrate into the forming cavity, conveying is carried out through friction force among the upper forming wheel, the aluminum strip and the plastic inner core layer, in the process that the aluminum strip is gradually formed into the aluminum pipe, the aluminum strip can gradually wrap the plastic inner core layer, and then the aluminum strip and the plastic inner core layer are matched to form the aluminum-plastic composite pipe. Therefore, the production efficiency is improved.

Claims

1. A production equipment for aluminum-plastic composite pipes, characterized in that: include: An aluminum tube forming unit, wherein a plastic inner core forming unit and an aluminum strip conveying unit are arranged in parallel at the input end of the aluminum tube forming unit, wherein the plastic inner core forming unit is used to form a plastic inner core layer (1) in a tubular shape and convey it to the aluminum tube forming unit, and the aluminum strip conveying unit is used to convey the aluminum strip to the aluminum tube forming unit; The aluminum tube forming unit is provided with a passing channel (2) and a forming chamber (3); the passing channel (2) is used for allowing the plastic inner core layer (1) to pass through; the forming chamber (3) is used for allowing the aluminum strip to pass through and drive the aluminum strip to deform and gradually form into an aluminum tube; the passing channel (2) is connected to the forming chamber (3), and the ends of the passing channel (2) and the forming chamber (3) gradually overlap, so that the aluminum strip gradually wraps around the plastic inner core layer (1) during the deformation process of forming into the aluminum tube.

2. The production equipment of an aluminum-plastic composite pipe according to claim 1, characterized in that: The plastic inner core molding unit comprises: A plastic extruder (4), the plastic extruder (4) being used to extrude a plastic inner core layer (1) in a tubular shape; A plastic pipe vacuum shaping box (5), the plastic pipe vacuum shaping box (5) being arranged on one side of the plastic extruder (4) and used for shaping the plastic inner core layer (1) into a tube shape; A first cooling water tank (6), the first cooling water tank (6) being arranged on one side of the plastic pipe vacuum shaping box (5) and being used for cooling the plastic inner core layer (1); A hot air dryer (7), the hot air dryer (7) being arranged on one side of the first cooling water tank (6) and being used for blowing air on the surface of the plastic inner core layer (1) to dry water stains on the surface.

3. The production equipment of an aluminum-plastic composite pipe according to claim 2, characterized in that: A glue coating machine (8) and a second cooling water tank (9) are also provided between the plastic inner core forming unit and the aluminum tube forming unit. The glue coating machine (8) is provided at the output end of the hot air dryer (7) and is used to coat glue on the surface of the plastic inner core layer (1). The second cooling water tank (9) is provided at the output end of the glue coating machine (8) and is used to cool the glue on the surface of the plastic inner core layer (1) to form an inner glue layer (10) after the plastic inner core layer (1) coated with glue on the surface enters the second cooling water tank (9).

4. The production equipment of an aluminum-plastic composite pipe according to claim 3 is characterized in that: A first traction machine (11) is provided on one side of the second cooling water tank (9), and the first traction machine (11) is used to pull the molded plastic inner core layer (1) forward.

5. The production equipment of an aluminum-plastic composite pipe according to claim 1, characterized in that: The aluminum strip conveying unit comprises: An unwinding machine (12), the unwinding machine (12) being used to place the aluminum strip coil; A belt press (13), wherein the belt press (13) is used to press the aluminum belt; A tape splicing machine, which is used for splicing aluminum tapes; A tension control system is provided, wherein the tension control system is used to control the tension of the aluminum strip during conveying.

6. The production equipment of an aluminum-plastic composite pipe according to claim 1, characterized in that: The aluminum tube forming unit comprises a vertical forming module and a horizontal forming module, and the aluminum strip passes through the vertical forming module and the horizontal forming module in sequence to be formed into an aluminum tube.

7. The production equipment of an aluminum-plastic composite pipe according to claim 6, characterized in that: The vertical forming module comprises a plurality of pairs of vertical forming wheels, each pair of the vertical forming wheels comprises an upper forming wheel (33) and a lower forming wheel (34), a gap is provided between the upper forming wheel (33) and the lower forming wheel (34) for the aluminum strip to pass through, the gap constituting a passing channel (2) of the vertical forming module, an inner tube groove (35) is provided on the wheel surface of the upper forming wheel (33), and the space between the inner tube groove (35) and the lower forming wheel (34) constitutes a forming chamber (3) of the vertical forming module.

8. The production equipment of an aluminum-plastic composite pipe according to claim 7, characterized in that: The outer wall of the lower forming wheel (34) is provided with an extrusion groove (36), the upper forming wheel (33) is adapted to fit within the extrusion groove (36), the through channel (2) is located between the extrusion groove (36) and the upper forming wheel (33), the width of the extrusion groove (36) of each lower forming wheel (34) decreases successively along the forming direction, and the width of the outer edge of each upper forming wheel (33) decreases successively along the forming direction.

9. The production equipment of an aluminum-plastic composite pipe according to claim 6, characterized in that: The horizontal forming module comprises a plurality of pairs of horizontal forming wheels (38), each of the horizontal forming wheels (38) being provided with an extrusion groove (37) on its outer wall, and the extrusion grooves (37) between each pair of horizontal forming wheels (38) being arranged relative to each other to form a passing channel (2) and a forming chamber (3) of the horizontal forming module.

10. The production equipment of aluminum-plastic composite pipe according to claim 6, characterized in that: The bottoms of the extrusion grooves (37) of each pair of the horizontal forming wheels (38) are of the same height, and the upper end of the forming chamber (3) of the horizontal forming module is provided with a closing opening, which decreases in size along the forming direction.

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