CN2071125U - Vacuum thermo moulding device - Google Patents

Abstract

The utility model relates to a vacuum thermo moulding device. Double-position operations can be realized by using a shuttle type double-clamping frame; a compound moulding device is composed of an upper and a lower mould, a thyristor is used for adjusting temperature, and a movable heater and a lower heater are arranged for heating the upper and the lower surfaces of a workpiece simultaneously. Therefore, when the device is used for producing the inner container of a refrigerator, the work efficiency can be improved by 2 to 4 times, the yearly output of a single machine in a single period can reach 80000. The device can reduce energy consumption, can improve product quality, can save raw material by 30% to 40% in production, and has high automatization. The device which can be produced by plastic boards of 4 mm is suitable for various occasions, and can not be influenced by environmental temperature and outer conditions.

Description

Vacuum thermo moulding device

The utility model belongs to the plastic molding machinery technical field.

This device is made the interior dawn of refrigerator and the shaped device of other plastic products with plastic plate, is refrigerator production and the indispensable equipment of other plastic shaping processing industries.Present domestic this type of approved product that still do not have, each producer uses, and all adopts the simple and easy make-up machine of manual self-control except import equipment, regulates temperature with single-circuit transformer, therefore poor product quality yields poorly, and labour intensity is big, and the percent defective height, high material consumption, energy consumption height.Import equipment has Hungary's six station machines.Liebherr's double machine of West Germany, its volume is all bigger, investment is high, the manufacturing technique requirent height, environment for use requires tight, and main is that these equipment can only be used thicker plastic plate machine-shaping, generally is the plastic plate with 6～8 millimeters, ability machine-shaping becomes the interior dawn of the refrigerator of 4 millimeters thick, so consumable material is bigger.

The purpose of this utility model, being that design is a kind of can save raw material, reduce cost, improve work efficiency, guarantee product quality, reduce labour intensity, and can adapt to the new vacuum thermoforming device of domestic conditions, to satisfy refrigerator production and other demands with the industry of plastic plate manufacturing plastic products.

Double before and after the utility model adopts, heating up and down, full work station register, upper and lower mould composite molding, technologies such as automatic charging and removable totally enclosed frame.In order to improve work efficiency, this device has designed double fastener and has held framework, and shuttle type work in front and back realizes the double operation.With upper heater movably and fixing following heater, when the station of back, the workpiece top and bottom are heated simultaneously, when preceding station, only with traveling heater to heating above the workpiece.Electric heater is provided with the multiple spot thermal source, and each point is all regulated temperature with controllable silicon, can regulate the each point temperature continuously according to workpiece each point district temperature requirement, thereby the plastic products thickness after the assurance moulding is evenly improved the quality of products.This device adopts the upper and lower mould composite molding, thereby has guaranteed inside and outside tolerance dimension of product and fineness.Whole device adopts removable totally enclosed frame and automatic charging device, so be not subjected to the restriction of environment temperature and other conditions in process of production.Charging, the demoulding all adopt vacuum source to finish.The front and back station manipulation moves and hydraulic means and mechanical travel mechanism and mechanical position limitation are all adopted in the lifting of upper and lower mould, and locking discharges, and therefore this plant automation degree and reliability has all been improved.Two station manipulations before and after plastic shaping is divided, before starting working, earlier stacked plastic plate is loaded on the charging supporting plate, the charging hand is arranged above supporting plate, end at the charging hand is equipped with vacuum cup, by charging hand and vacuum cup the plastics plate is delivered in the holding frame, after holding frame is received plate, can be clamped plate automatically.Pulley is housed below the holding frame, contacts with following rail by pulley.Before and after rail divides two sections all liftable (preceding rail is down finished lifting by voltage rise mechanism, lifting is finished by elevating mechanism in back down rail), below the back rail down heater being housed down fixes, be furnished with 32 hot spots on it, every temperature all is to regulate with controllable silicon, is responsible for heating below plastic plate.With parallel the getting on the right track of following rail, get on the right track and run through not segmentation of rear portion from the front portion, movably traveling heater is housed in the above, be furnished with 45 hot spots on it, each thermal source all adopts the controllable silicon temperature adjustment, is responsible for the top heating to plastic plate.According to the shape and the each point temperature requirement of plastic products, every some temperature all can be regulated continuously.Removable heater can move forward and backward (being finished by shift mechanism) along getting on the right track the front and back station is heated.Hanging box is housed below getting on the right track, and hanging box can move forward and backward along getting on the right track, it be used for adorning suspension clamp hold framework in the past station shift to the back station and use.Plastic plate is in the holding frame of back station, carry out top and bottom and be heated to plastic plate simultaneously when softening (sag after plastic plate is softening must not be lower than the lower plane of holding frame), holding frame and traveling heater (upper heater) that softening plastic plate will be housed by travel mechanism move on to anterior station along track together.Removable heater continues the workpiece heating up to requiring to extremely, and at this moment traveling heater moves on to the workpiece that rear portion station heating is newly sent here again.The patrix (die) of anterior station descends along the patrix lifting column simultaneously, and the workpiece pressing pressing plate is drawn onto the die inwall with external vacuum source is air-breathing with workpiece, makes the thick moulding of workpiece.Then counterdie (punch) rises to the top, with vacuum source workpiece is sucked the convex mold face, makes workpiece by finished product requirement moulding (finishing precisive shaped).After the plastic shaping (finishing precisive shaped), patrix rises to very useful air blast workpiece is carried out forced air cooling but, then pulsation is blown in the counterdie, with the air pressure between workpiece and the counterdie once, make workpiece (but finished product) demoulding, counterdie descends, and opens the hold down gag and the sound and light signal of gripper frame simultaneously automatically, and the notifying operation personnel take out product.The voltage rise mechanism action of rail under then, preceding rail is down risen (having holding frame), holding frame is delivered to gone in the following hanging box that gets on the right track, along getting on the right track holding frame is moved on to the rear portion by hanging box, the rail rising receives the holding frame in the hanging box under the back, refills workpiece.At this time another holding frame (workpiece has been housed, and has heated) carries out work along descending rail to move on to anterior station, circulation thus, and two holding frames shuttle back and forth in turn and finish continuous production in the front and back station.

The utility model advantage and since this device adopt before and after double, take turns the station work of shuttle type front and back with two holding frames, operating efficiency is improved greatly, in dawn, the annual production of separate unit split run can reach 80,000 production capacity in producing refrigerator, improves 2～4 times than existing equipment output.This device adopts heating up and down, and full work station temperature adjustment technology promptly adopts controllable silicon to regulate the temperature of each point, avoids the shortcoming of interval temperature adjustment, and therefore both energy savings can improve the quality of product again.Main owing to adopted holding frame and full work station register, can save raw material greatly, for example make the interior dawn of refrigerator, originally can only be processed into the finished product of 4 millimeters thick with the plastic plate more than 6 millimeters, this device can be processed into the finished product of 4 millimeters thick with the plastic plate of 4 millimeters thick, saves the also available plastic plate more than 2 millimeters of material this device of about 30～40%(and is processed into plastic products).Owing to adopt the upper and lower mould composite molding,, improved product surfaces externally and internally fineness and product quality so guaranteed the inside and outside dimensional tolerance of product.This device also adopts automatic charging and mechanical displacement, lifting, automatically locks and technology such as release and vacuum suction, has improved production automation degree and has reduced working strength of workers, helps further adopting microcomputer control, realizes full-automatic.The removable totally enclosed frame of whole device can be simplified production technology, adapts to various occasion productions, is not subjected to environment temperature and other condition effect.

Description of drawings: 12 is support among the figure, rail 16 and voltage rise mechanism 2 under before being equipped with thereon, the back is rail 19 and elevating mechanism 11 down, and patrix 1 and elevating mechanism 3 get on the right track 13, patrix lifting column 17, charging hand 2C, charging supporting plate 15, counterdie elevating mechanism 4, shift mechanism 10, hydraulic system 18 and removable sealing casing 21 etc.Get on the right track 13, station before and after level runs through is equipped with movably traveling heater 5 at this above the track, traveling heater 5 can move on to back station work, station work before also can moving on to, and it moves by shift mechanism 10 and finishes, traveling heater 5 is responsible for heating above the workpiece.Hanging box 7 is housed getting on the right track below 13, can 13 moves along getting on the right track, hanging box 7 is used for adorning suspension clamp and holds framework 6,8, moves on to from anterior station that the rear portion station uses.This device has two holding frames 6,8 to shuttle back and forth in turn in front and back station work, and he is a holding workpiece.The back is rail 19 down, but oscilaltion leans on elevating mechanism 11 to finish, and heater 9 down fixedly is housed below the rail 19 under the back, and it is responsible for heating below workpiece.Before down rail 16 have voltage rise mechanism 2 to finish lifting, there is holding frame 6,8 preceding rail 16 down and back above the rail 19 down, can be from the back rail 19 down, before moving on to down on the rail 16.Patrix (die) 1 is contained on the patrix lifting column 17, and by the effect of patrix elevating mechanism 3, patrix 1 can be along 17 oscilaltions of patrix lifting column.Counterdie elevating mechanism 4 is to drive the counterdie lifting.One end of charging hand 20 is equipped with vacuum cup 14, plastic plate can be delivered to holding frame 6,8 from charging supporting plate 15 and get on.21 is removable sealing casing, and its effect is that the whole device work of protection is not influenced by external condition, as environment temperature, and extraneous dust etc.

Claims (4)

1, a kind of vacuum thermoforming device is by support 12, patrix (die) 1 and elevating mechanism 3, counterdie (punch) and elevating mechanism 4, get on the right track 13, preceding rail 16 down, and voltage rise mechanism 2, the back is rail 19 and elevating mechanism 11 down, holding frame 6,8, hanging box 7, following heater 9, traveling heater 5, charging hand 20, shift mechanism 10, charging supporting plate 15 and hydraulic system 18 are formed, and it is characterized in that the upper and lower mould composite molding, two holding frames 6 are arranged, 8, station before and after shuttling back and forth in turn, following heater 9 be fixed on the back down rail 19 below, traveling heater 5, getting on the right track above 13, can be along getting on the right track 13, the front and back station moves.

2, a kind of vacuum thermoforming device according to claim 1, after it is characterized in that patrix (die) 1 decline workpiece pressing pressing plate, vacuum source in die, carry out air-breathing workpiece is drawn onto in the thick moulding of walled workpieces, counterdie (punch) rising vacuum source sucks the bed die face with workpiece and finishes the upper and lower mould composite molding again.

3, a kind of vacuum thermoforming device according to claim 1 is characterized in that two holding frames 6,8, before down rail 19 moves on to from the back down rail 16 finish by shift mechanism 10 along rail down, holding frame 6,8 in the past down rail 16 move on to back rail 19 down, 13 finish along getting on the right track by hanging box 7.

4, a kind of vacuum thermoforming device according to claim 1, it is characterized in that being furnished with 32 hot spots on the heater 9 down, the each point temperature is the controllable silicon temperature adjustment, below workpiece, heat, traveling heater 5, on be furnished with 45 hot spots, the each point temperature all is that controllable silicon is regulated, to heating above the workpiece.

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