A production line for processing pipettes with dovetail grooves at intervals

Abstract

The invention discloses a production line for processing dovetail groove pipe heads and straws in intervals, which includes a frame (1), a feeding device (2), a heating device (3), and an extrusion mold ( 4), vacuum defoaming device (5), cooling and shaping device (6) and cutting and blanking device (7); cooling and shaping device (6) includes a cooling box (8) fixedly connected with the frame, cooling box ( The two ends of 8) are respectively provided with a sealed feed inlet (9) and a sealed outlet (10) with the same height; a partition (11) is provided in the cooling box (8), and a seal is provided on the partition (11). The transition port (12), the sealing transition port (12) has the same height as the sealing feed port (9). The invention not only can be operated conveniently, but also has the advantages of low cost, uniform coloring, high work efficiency and good product quality.

Description

technical field [0001] The invention relates to straw production equipment, in particular to a production line for processing straws with dovetail grooves at intervals. Background technique [0002] At present, the production of common straws on the market is generally to heat and melt the plastic particles before extrusion molding, and to cool and shape the shaped straws, and finally to cut the strip-shaped straws into finished products; while the existing The cooling and shaping device of the company directly sends cold water into the cooling box of a certain length, so that the extruded straw is cooled and shaped by the cold water in the cooling box; due to the large temperature difference in different seasons, the extruded straw needs The cooling time is different. In the existing cooling and shaping device, the straw needs to go through a fixed cooling length every time. In winter, after the straw passes through a certain length in the cooling box, the straw has been co...

AI Technical Summary

Problems solved by technology

[0002] At present, the production of common straws on the market is generally to heat and melt the plastic particles before extrusion molding, and to cool and shape the shaped straws, and finally to cut the strip-shaped straws into finished products; while the existing The cooling and shaping device of the company directly sends cold water into the cooling box of a certain length, so that the extruded straw is cooled and shaped by the cold water in the cooling box; due to the large temperature difference in different seasons, the extruded straw needs The cooling time is different. In the existing cooling and shaping device, the straw needs to go through a fixed cooling length every time. In winter, after the straw passes through a certain length in the cooling box, the straw has been cooled and shaped, and it has reached the time for subsequent cutting. Appropriate temperature, neither too soft nor too hard; excess cooling water in the cooling water tank will continue to cool the straw, which will lead to poor final cooling effect of the straw, making the straw too hard to be suitable for subsequent cutting; therefore, When the temperature difference between winter and summer is relatively large, it is inconvenient to replace cooling boxes of different lengths; or put the equipment in a constant temperature environment, and the constant temperature environment requires air conditioning to adjust, which consumes a lot of energy

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