Manufacturing Method of Blister Mold

The production method of blister mould is to use the principle of heating and air pressure, and use vacuum forming machine to process plastic sheets into various shapes of blister. This is a practical floor tile mold and process mold production technology. It is widely used, fast in production, small in investment, quick in effect and high in efficiency. 1. Equipment and tools A set of vacuum plastic machine, mold, PVC or polyethylene plastic sheet roll (different thickness sheets can be selected according to the production variety). 2、 Production process (1) Production and processing of blister mould: according to user requirements or sample specifications, blister mould shall be made first. Generally, gypsum is used to make blister molds, but wood carving and metal carving products are also used as molds. After the mold is made, let it completely dry or naturally dry. Then, according to the specific situation of the product surface, use a 1-2mm drill bit to drill many small holes in the low recesses that do not affect the appearance of the product packaging. If it is a packaging box, for such products, you must drill some small holes on the four sides so that the air can be discharged during the production of blister. After the mold is drilled, the plaster mold must be hardened. The hardening method is to use concentrated alum. Immerse in saturated solution and dry. (2) Manufacturing method of blister mould: One. After the blister mold is completely processed and dried, place the blister mold on the upper iron plate of the vacuum chamber, and then load the plastic sheet into the applicable specification according to the mold size, and then put the sheet into the heated wooden frame to make it completely fixed, and then place the wooden cabinet and plastic sheet on the thermostatic furnace for softening treatment. Bay. Put the softened plastic sheet and the wooden cabinet into the vacuum chamber, turn on the air suction switch to clean the air in the vacuum chamber, and after the plastic sheet is cooled, obtain the same suction mould as the mould. C。 Finish machining; The finished products are cut and trimmed, and can be sold after packaging.

2022-11-14

Composition and function of plastic suction machine

1、 Clamping equipment When the plastic sheet is formed, the sheet is fixed on the clamping device. Clamping devices convenient for fixing sheets of various sizes are often used on general and composite hot forming machines for hot forming. Some of the machines are equipped with a set of clamping frames. Clamping devices can be divided into two types: - type is frame type, and - type is split type. The frame type clamping device is composed of upper and lower frames. The sheet is sandwiched between two frames. When the frame is open, the lower frame generally remains fixed. The lower part of the upper frame of various types of single station molding machines is directly fixed on the molding room. When the frame size is large, the manual and semi-automatic molding machines that manually install parison and take out finished products are equipped with safety operating devices within the opening range of the frame. For parison with large forming slip, it is required that the clamping force can be adjusted in a wide range. For this purpose, two rubber covered rollers are used to compress each other with springs and equipped with a pressure regulating device. The clamping of the continuous pull sheet forming machine is the joint action of the zippers on both sides and the front and rear brakes. It is better to adopt automatic control for the clamping device so that it can act quickly and help to improve the quality and efficiency of parts. 2、 Heating equipment One of the main steps in the vacuum forming process of thermoplastic sheets and films is sheet heating. The duration and quality of electric heating depend on the structure of the heater, the thermal inertia of temperature transfer behind the radiant surface, the distance between the sheet and the heater, the radiation energy absorption coefficient, the characteristics of the heater surface and the thermophysical properties of the material. Common heaters include electric heater, crystal radiator and infrared heater.

2022-11-14

Maintenance of automatic plastic suction machine

1. Lubrication: all columns, chains and bearings shall be kept in good lubrication condition. Running without lubrication will seriously damage the machine and cause column deformation. 2. Water filter and oil atomizer: observe and record various indicators, and add oil and change water regularly. 3. Keep the working environment clean and sanitary. Waste materials around the fuselage and oil stains inside the machine need to be treated every shift.

2022-11-14