Compact type rotation molding production line

Abstract

The invention relates to a compact type rotation molding production line. The compact type rotation molding production line comprises a machine frame and a rotation molding mold, and is characterized in that a manual operation station, a waiting station, a rotation molding station, a discharging and reversing station, and a cooling station are arranged on the machine frame in rectangular layout; the manual operation station, the waiting station, the discharging and reversing station, and the cooling station are sequentially distributed at four corners of the rectangle; the rotation molding station is arranged between the waiting station and the discharging and reversing station; and a rotation molding machine is mounted at the rotation molding station. The compact type rotation molding production line disclosed by the invention has the advantages that the rectangular layout is adopted; the arrangement of the stations is reasonable; the rotation molding process route is realized; and besides, the structure is compact, and the process route is reasonable, so that the shortening of a production cycle is facilitated.

Description

technical field [0001] The invention relates to a rotational molding machine, in particular to a compact rotational molding production line. Background technique [0002] Rotational molding is a multi-purpose process for manufacturing various hollow plastic parts, and it is widely used in the production of small products such as polyvinyl chloride plastic balls and containers. The principle is to use heating and rotation along two axes to produce a hollow single part, inject molten plastic into a rotating mold, and centrifugal force forces the molten plastic to stick to the inner wall of the mold. Through the heating of the mold and the vertical and horizontal rolling and rotation, the material is evenly filled and melted in the inner cavity of the mold by its own gravity and centrifugal force, and the hollow product is obtained after being demoulded after cooling. [0003] In the production process of traditional spherical products, there are many process steps, and most o...

AI Technical Summary

Problems solved by technology

[0006] (1) The working room of the rotomolding machine, which is the core part of the rotomolding machine, is set on one side of the circulating assembly line, and it is necessary to set up a special mold entry and exit station to send the mold to the In the working room, there are many stations, which increases the floor area of ​​the equipment and the manufacturing cost of the equipment; secondly, the mold needs to move twice between the working station and the working room, and when there are molds in the working room, The next mold can only wait at the first transfer station, which affects the running smoothness of the entire assembly line, so the production efficiency is affected;

[0007] (2) In order to smoothly realize the transfer of the mold between each station, the effective stroke of the first driving cylinder is longer, which makes the overall length of the first driving cylinder longer Large, the length even exceeds the working edge of the equipment, and corresponding guide components need to be equipped at the same time, further increasing the manufacturing cost;

[0008] (3) Due to the space limitation between each station and the first driving cylinder, the first driving cylinder cannot be installed under the station, but can only be installed on the roller On the outer edge of the molding machine, further increasing the size of the equipment;

[0009] (4) During the rotary molding process of the rotomolding mold in the working room of the rotomolding machine, a locking mechanism is required to lock the mold seat to avoid being thrown out during the overturning process At present, most of the known locking mechanisms require manual locking or unlocking, which affects the production efficiency of rotational molding. Some of them use actuators such as cylinders and motors to achieve automatic locking. , the service life is greatly affected, and frequent maintenance is required; at the same time, the size of the studio will be further increased, which is not conducive to miniaturization and compact design

Images