What is blister packing machine?
Blister packaging machine, also called
thermoforming blister packaging machine, is a machine that sucks the heated plasticized PVC, PE, and other thermoplastic plastic coils into various shapes of high-class packaging boxes, frames, and other products.
Blister molding, also called thermoplastic molding, mainly uses the vacuum suction produced by the vacuum pump to make the heated and softened PVC, PET, PETG, APTT, PP, PE, PS, and so on. It is divided into daily necessities blister packaging, small hardware blister packaging, automotive products blister packaging, etc.
Working principle of blister packing machine
The principle of blister machine refers to the technology of using the vacuum suction generated by the vacuum pump to soften the heated and softened PVC, PET, PETG, APTT, PP, PE, PS, and other thermoplastic plastic sheets into various shapes of vacuum covers, blister trays, blisters and so on, through the mold suction mold.
Structure of blister packing machine
The main structure of blister packaging machine is composed of feeding, pulling, upper and lower electric heating furnace, lower gate, multifunctional adjustable size, lower mold plate, upper mold, upper gate, knife gate, slicing, releasing, and equipped with a vacuum device, etc.; the pneumatic device is the main power source, and the pulling and feeding of the slices are made by electric power, speed reducer, time relays, intermediate relays, travel switches, and other electrical appliances. Full-automatic control system.
The requirements of the control system of the blister sealing machine are to ensure easy operation, high precision of mechanical action and temperature control, short production time, and to save the power consumption of the machinery as far as possible under the same production conditions.
Working process of blister packing machine
a. Putting in the material. Staff put the blister into the mold of the blister-forming machine the turntable rotated one station (90 degrees).
b. Moving in. The staff puts the material in the middle and puts the paper card on the blister board, then the turntable rotates one station (90 degrees).
c. High frequency melting. Lower the nozzle of the blister packaging machine - pre-pressure - melting and applying - pressurization - cooling and holding pressure -The nozzle rises - turntable 1 station (90 degrees).
d. Receiving station. The automatic chuck of the automatic blister packing machine robot will grab the packaged product, and then the turntable will rotate 1 station (90 degrees) to enter "Feed 1".
Technical parameter of blister packing machine
| Power source | 1P 230V |
| Maximum power | 2.1KW |
| Size of the whole machine | W 680mm x L 1120mm |
| Table height | 920mm |
| Weight of legs | 15kg |
| Machine weight | 71kg |
| Edge sealing range | W 320mm x L 460mm |
| Maximum product height | 200mm |
| Sealing and cutting method | Bottom blade |
| Maximum outer diameter of film roll | DIA 250mm x W 470mm |
| Output | 4-6 pcs/min |
Feature of blister packing machine
a. The feeding drive system adopts frequency conversion technology to control the pulling of the film. This is not only powerful but also accurate pulling length (accurate to ±2mm). The feed drive system is combined with a needle chain drive so that high-speed operation can still ensure its accuracy and stability. The machine is equipped with a width-adjustable device, which greatly reduces the width of the clamped sheet so that JULO machinery can make use of the film and reduce waste.
b. The temperature control system adopts far-infrared ceramic heating bricks with an independent control switch, even temperature control, and built-in thermal insulation material, which reduces heat dissipation to a lower limit. This system makes the machine energy-saving significantly, power saving is 40% higher than ordinary machines.
c. The automatic slicing adopts a rodless cylinder to drive the blade reciprocating slicing, so the slicing is easy without vibration. Electric synchronous adjustment of the upper mold.
d. Vibration molding can be adjusted arbitrarily between 0~11 times. Two times on the mold can protect the molded products from deformation and cracks during demolding. This machine is a better choice for products that are easy to be brittle and difficult to de-molded.
e. Equipped with chiller and spray air cooling system fast cooling device, no vibration and residual air, so it can speed up the production speed.
f. Built-in secondary vacuum makes it easier to mold difficult products, reduces scrap rate, and improves product quality.
g. The central integrated control system makes the fully automatic continuous blister molding work, such as feeding→heating→blistering→cooling→debonding→cutting. The machine adopts imported components, which improves the control performance of the whole machine and especially ensures the quality and quality of the whole machine.
h. Equipped with product quantity setting device, and full board alarm device, suitable for batch products or each roll of film production statistics.
i. The electric furnace is made of stainless steel, avoiding similar models made of iron plate to produce iron oxide under the action of high temperature.
Type of blister packing machine
a. Single-anodic molding. Single-positive molding is also known as convex molding, bending molding, or vertical molding. It is a molding method in which a heated and softened plastic sheet is molded into a certain shape using machinery.
b. Single negative molding. Single-negative molding is also known as concave molding.
c. Three-pair molding. A pair of molds, consisting of a male mold, a female mold, a fixture, and other accessories.
d. Composite molding.
Application of blister packing machine
a. Plastic packaging industry (blister packaging, plastic, batteries, toys, gifts, hardware, home appliances, electronics, stationery, decoration).
b. Food packaging industry (fast food boxes, fruit trays, biscuit boxes).
c. Pharmaceutical industry (pill packaging, tablet packaging).
d. Cooling towers, cooling water, deflector plates, etc. for the industry.
e. Decorative three-dimensional relief patterns, plastic ceilings, wall panels, automotive materials, sanitary equipment, and other manufacturing industries.
f. Suitable for the production of various colored sheets: polyethylene PS, polyvinyl chloride PVC, plexiglass, ABS, polymethyl methacrylate; flocked sheets; environmentally friendly sheets APET, PET, PP, etc.; photodegradable materials; biodegradable materials and other plastic products.
Use of blister packing machine
a. Maintain cleanliness and hygiene. After stopping the machine should remove the surrounding debris and dirt inside the machine.
b. Each sliding guide column, bearing, and sprocket must be kept in good lubrication condition, and often refueled and lubricated.
c. The water filter in the air circuit should be drained once every work shift, and the oil mist should be refueled frequently to ensure the normal use of solenoid valves and cylinders.
d. Every work shift should first inspect the oil level of the vacuum pump (the oil should not be lower than the oil level line); the vacuum pump oil should be put into exchange once a month.
e. Operators need to frequently observe the oil mist oil volume, and adjust the size of the oil volume at the right time. The role of the new machine to adjust some of the larger (about 3 days 1 bottle of oil) can be reduced after a week of use to ensure that the various pneumatic components have sufficient lubrication.
Precaution of blister packing machine
a. The power supply must be cut off when the hand reaches under the guide rail for operation, and there should not be any accidental connection of the power supply.
b. When the machine is using the second mold loading function, please do not touch the cooling products with your hands inside the molding area to prevent your hands from being crushed when the second mold loading is coming down.
c. In the heating area, please do not touch the heating device with your hands, or baked goods. The heating furnace should be raised during shutdown.
d. When the length of the product is lower than 800mm, the upper gate and the upper mold action must be synchronous. When adjusting the machine partially, the upper gate should be opened first, and then the upper mold.
e. In the local adjustment of the machine, such as the use of solenoid valve power for debugging, the operator should pay attention to whether the power outage will cause injury.
f. When receiving the slices by hand and feeding them into the knife gate and adjusting the position of the slices, the knife gate should be closed, and the hand should not be put into the knife gate cabinet in the automatic state.
Fault resolution of blister packing machine
| Fault | Resolution |
| Machine does not start | Input wire does not work, the power cord is reversed, and the voltage is not enough. |
| Inaccurate temperature measurement | Thermocouple, temperature controller is installed incorrectly and damaged. |
| The working vacuum is not coming up | The gas circuit is impassable, the hand valve or solenoid valve is not closed, the vacuum pump motor belt is loose, and the vacuum gauge is damaged. |
| Main power switch tripped | Heating box top input wire leakage, power distribution box leakage, outside the wire on the equipment, motor leakage, etc. |
| Film suction is not in place | Vacuum degree is not enough, leakage, temperature is not enough, the film is too thin, the workpiece pasted other materials, the concave depth of the workpiece is more than the film's pull-up, suction coating time is too short, the film did not pull-up, the workpiece is too close. |
| The surface of the laminated workpiece has folds and is not smooth or the corners cannot be wrapped. | Membrane is not straightened, the membrane quality is not good, the workpiece is not well polished, the glue is sprayed too much, and the workpiece below the touch plate is too low. |
| Membrane pulls down when not suctioning | Solenoid valve or hand valve is open. |
| Suction breakage phenomenon | The temperature is too high, the heating time is too long, the quality of the film is not good, no heating. |
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