How to improve the effectiveness of the heat shrink machine

Automatic heat shrink packaging machine wraps the shrink film around the outside of the product or package. After heating, the shrink film can shrink and wrap the product or packaging parts to fully display the appearance of the product, improve the display and sales of the product, and increase the sense of beauty and value. The items packed by the heat shrink machine can be sealed, moisture-proof, anti-pollution, protect the goods from external impact, and have certain buffering, especially when the package is fragile, it can prevent the container from flying when it is broken. In addition, it can reduce the possibility of disassembly and theft of products.

So how to improve the shrinkage effect of heat shrink packaging machine? Generally speaking, it is achieved mainly through the following ways:

(a) the choice of heat shrink film:

The packaging effect of heat shrink packaging should be based on different different quality, materials and packaging effects to choose a different heat shrink film. The choice is also relatively simple. As long as we master the shrinkage rate and medium thickness of the heat shrink film. The shrinkage rate of the heat shrink film directly affects the effect of heat shrink packaging of the product. The higher the shrinkage rate, the better.

(B) heat shrink packaging machine configuration:

Heat shrink packaging machine export method is generally divided into two types, one is the fan blades on both sides of the furnace, the other is the air holes on both sides of the furnace. Heat shrink packaging machine heating method for quartz tube heating and stainless steel tube heating, stainless steel tube inside the circulation of wind, natural internal circulation contraction effect is better.

(3) heat shrink packaging machine performance and wind flow system structure:

When buying a heat shrink packaging machine, we must first choose the right power fan, not the bigger the better, but to adapt to the size of the furnace. At the same time, more attention should be paid to the layout of the hot air circulation ductwork structure. When the fan works, it can evenly blow out the heating temperature to achieve the effect.

The process and characteristics of the heat shrink packaging machine

Heat shrink packaging machine packaging process:

First, set the heating time of the machine.

2. After pressing the manual button, the solenoid valve of the rack cylinder pushes the gear through the electrical output, and the gear drives the chain. At this time, the rear position of the rack cylinder is close to the switch and closed. When the rack cylinder runs to the upper stop, the front proximity switch of the rack cylinder conducts, and the solenoid valve of the oven cylinder energizes the output.

When the oven cylinder runs to the upper stop, the timer starts to delay and the solenoid valve of the rack cylinder is de-energized.

The timer ends and the solenoid valve of the oven cylinder is de-energized.

According to the working method mark position, decide whether to continue the next workflow.

Heat shrink packaging machine features and applications

According to international standards, heat shrink film packaging machine elaborate small heat shrink packaging equipment, easy to operate... Wide range of application . Good sealability. High transparency. Low cost characteristics, suitable for the packaging of small and medium batch products. Heat shrink film machine and labeling machine are used online to form a labeling shrink line, which is widely used in pharmaceuticals. Food. Beverage. Cultural goods. Ceramics. Daily chemical. Auto parts. Needlework. Totally enclosed heat shrink packaging electronic audio and video products, is the back of the packaging line of the set of labels shrink machine.

Heat shrink packaging machine has an important significance

Heat shrink packaging machine is a highly automated equipment, widely used in pharmaceuticals. . In the food, beverage, household chemical and other industries, the application of shrink film packaging machine can greatly reduce the use of the box packaging materials and labor costs, has an important economic significance.

Heat shrink packaging machine is a combination of pneumatic components and mechanical devices, PLC and other external wiring control of automatic packaging equipment. The actuating component of this equipment is the cylinder. It is controlled by two five-way solenoid valves for forward and backward movement. The working position of the cylinders is detected by magnetic switches and proximity switches and fed back to the PLC, which sends control commands to the solenoid valves of the corresponding cylinders through the program, thus controlling the movement of the cylinders.

What are the packaging methods of heat shrink packaging machine

Heat shrink packaging machine according to the different packaging methods, can be broadly divided into the following three packaging forms:

Open at both ends:

Wrap the package in a sleeve with a tube film or flat film, and then perform heat shrink operation. After the packaging is completed, there is a shrinkage opening at both ends of the package.

1. When using cylindrical film, first open the opening of the cylindrical film, then push the product into the cylindrical film with a slide slot, and then cut the film. As shown in Figure 1. This method is more suitable for packaging cylindrical objects, such as batteries. Paper rolls. Packaging of bottles and cans, etc. The advantage of cylindrical film packaging is to reduce the 1~2 seam sealing process, beautiful appearance, the disadvantage is that it can not meet the requirements of product diversification, only suitable for mass production of a single product.

2. Wrapping items with flat film in two ways:single flat film and double flat film. The film should be wider than the item. Use double flat film, i.e. use . The next two films are wrapped, and the two films are sealed and joined while the previous package finishes sealing and cutting, and then the product is pushed into the upright film by machine or by hand. Once in place, the sealing mechanism drops down and seals and cuts the other side of the product. After the film-wrapped product is heat shrunk, the package shrinks at both ends to form an oval opening. When using a single flat film, the flat film is unfolded first and the wrapped product is sent to the middle of the flat film to form a horseshoe shaped wrap and then heat sealed with a lap seal.

Four-sided sealing.

Wrap the product with flat film or cartridge film and seal the seam with a lap seal. For sealed product packaging.

1. Folded film can be sealed in L-shape by using a roll of folded film, pulling the film out to a certain length, placing it in a horizontal position, opening the open end mechanically or manually, and pushing the product to the fold.

2. A single flat film can be packaged with pillow bags. This method is to use a single flat film, first seal the longitudinal seam into a cylindrical shape, push the product into it, and then cut the horizontal seam into a pillow package, or tie the two ends into a cylindrical package with a card.

3. Double flat film sealed packaging on all sides is similar to open packaging on both ends, which can be completed by simply equipping the machine with sealing devices on both sides.

4. If wrapped with cylinder film, it only needs to be sealed when the cylinder film is cut. Puncture holes, followed by heat shrinkage. The sealer often has a piercing needle next to it. When heat sealing, the felting needle pierces the vent hole on the film, and the small hole often seals itself after heat shrinkage.

Open at one end:

Pallet shrink packaging is a typical example. First, the film is made into a large square-bottom bag, then the large bag is placed top to bottom on a stacked pallet of merchandise, which is then heat shrunk. The tray with the product is placed on a conveyor belt over the shrink film bag; the conveyor belt is fed into the heat shrink channel through which the shrink packaging is completed.

The main feature is that the products can be packed firmly in a certain number of units, will not be loosened during transportation, and can be stacked in the open air.