CN201151174Y

CN201151174Y - Improved structure of casting roller

Info

Publication number: CN201151174Y
Application number: CNU2007200565074U
Authority: CN
Inventors: 张春华
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-04
Filing date: 2007-09-04
Publication date: 2008-11-19
Anticipated expiration: 2017-09-04

Abstract

The utility model relates to an improved structure of a casting roller that is a crucial part in the plastic membrane production craftwork, which comprises an inner core, an outer cylinder, an outer-cylinder reinforced plate, a close board, an inner-core reinforced plate, a first spindle head, a second spindle head and an intermediate flow passage, wherein, the outer cylinder is connected with the first and the second spindle heads through the outer-cylinder reinforced plate; the inner core is connected with the first and the second spindle heads through the inner-core reinforced plate; the intermediate flow passage is arranged between the inner core and the outer cylinder; a helical line on the flow passage divides the flow passage into a plurality of equal flow passages; the lead of the helical line is about 900 minus or plus 10 mm; the diameter of a main cool roller is 1200 mm; and the length of the roller surface is 3500 mm; the wall of the outer cylinder is thin and the wall of the inner core is thick. Adopting the technical proposal hereinabove, the casting roller ensures that the cooling water passes through the cooling roller at an appropriate time, so as to remove the heat of the roller surface, thereby realizing the best effect of the heating exchange.

Description

The structure-improved of casting roller

Technical field

The utility model relates to the casting films plastics machinery of making plastic sheeting, refers in particular to the structure-improved of the critical component casting roller in the plastic film production process.

Background technology

In the casting films production process, the plastics under the molten condition are extruded from flat-die head lip and are poured into the chill roll surface, and the cooling back forms film rapidly, chill roll relies on water quench, in order to improve output and film quality simultaneously, must improve cooling effect, reduce the chill roll surface temperature.

Summary of the invention:

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of structure-improved of rational in infrastructure, casting roller that cooling effect is preferable is provided.

For achieving the above object, the technical scheme that the utility model provides is: the structure-improved of casting roller, include inner core, urceolus, the urceolus stiffener, shrouding, the inner core stiffener, first spindle nose, second spindle nose, intermediate flow channel, urceolus is by the urceolus stiffener and first spindle nose, second spindle nose connects, inner core is by the inner core stiffener and first spindle nose, second spindle nose connects, it between the inner/outer tube intermediate flow channel, spiral curve on the runner is divided into impartial a plurality of passages to runner, about 900 ± the 10mm of the helical pitch of spiral curve, main cold roller diameter is φ 1200mm, the long 3500mm of roll surface, outer tube wall is thin, the inner core wall thickness.

After the utility model adopts technique scheme, guaranteed that cooling water passes through chill roll with the suitable time, taken away the heat of roll surface, allowed heat exchange reach optimum efficiency simultaneously.

Description of drawings:

Fig. 1 is the utility model structural representation.

The specific embodiment:

Below just specify with reference to the structure and the operation principle of 1 pair of cold roller of master of accompanying drawing:

Present embodiment includes inner core 1, urceolus 2, urceolus stiffener 3, shrouding 4, inner core stiffener 5, first spindle nose 6, second spindle nose 7, intermediate flow channel 8, urceolus 2 is by the urceolus stiffener 3 and first spindle nose 6, second spindle nose 7 connects, inner core 1 is by the inner core stiffener 5 and first spindle nose 6, second spindle nose 7 connects, it between the inner/outer tube intermediate flow channel 8, six spiral curves on the runner are divided into six impartial passages to runner, the about 900mm of the helical pitch of spiral curve, guarantee that cooling water passes through cold roller with the suitable time, take away the roll surface heat, main cold roller diameter is φ 1200mm, the long 3500mm of roll surface, outer tube wall is thin, the inner core wall thickness.

The utility model operation principle is: cooling water is entered from first spindle nose 6, the circular hole of circumference uniform distribution on spindle nose enters the passage between urceolus stiffener 3 and the shrouding 4, enters six helical flow paths between the inner/outer tube then, cold roller urceolus 2 walls are thin, more help heat exchange; Inner core 1 wall thickness has stiffener to be connected with spindle nose again, and the intensity and the rigidity of roller are strengthened, for the minimizing of urceolus wall thickness provides safeguard; Roller diameter is big, and roll surface is long, and film-cooled heat greatly increases; The given suitable helical pitch of spiral curve allows heat exchange reach optimum efficiency simultaneously.Main cold roller is rotated counterclockwise under synchronizing wheel drives, and spiral curve dextrorotation, under centrifugal action, cooling water is close to outer tube wall all the time and is flowed, and takes away more heats.

Claims

1, the structure-improved of casting roller, include inner core (1), urceolus (2), urceolus stiffener (3), shrouding (4), inner core stiffener (5), first spindle nose (6), second spindle nose (7), intermediate flow channel (8), it is characterized in that: urceolus (2) is by urceolus stiffener (3) and first spindle nose (6), second spindle nose (7) connects, inner core (1) is by inner core stiffener (5) and first spindle nose (6), second spindle nose (7) connects, between the inner/outer tube intermediate flow channel (8), spiral curve on the runner is divided into impartial a plurality of passages to runner, helical pitch 900 ± the 10mm of spiral curve, main cold roller diameter is φ 1200mm, the long 3500mm of roll surface, outer tube wall is thin, the inner core wall thickness.