Introduction
Shenghe Machinery stands at the forefront of innovation in plastic container production, offering a variety of cutting-edge blow molding machines. The article delves into the bottle making process, emphasizing the importance of safety regulations, regular maintenance and the working principles of a fully automatic plastic bottle blowing machine.
Details
About the new bottle blowing machines used by bottle blowing machine manufacturers
We use a lot of plastic bottles in our lives, not only when we drink drinks, but also in other industries and fields, many plastic bottles or plastic containers are also used. Plastic containers are not only lightweight and easy to carry, but are also widely respected by the public. However, these plastic containers are all blow molded by bottle blowing machine manufacturers. A bottle blowing machine is a device that converts plastic particles into hollow containers through a blow molding process. Currently, the machines commonly used by bottle blowing machine manufacturers include one-step hollow extrusion blow molding machines using pp and pe, two-step injection stretch blow molding machines using pet, pc or pp, as well as newly developed multi-layer hollow extrusion blow molding and Stretch blow molding. Most bottle blowing machine manufacturers still use two-step blow molding machines, that is, plastic raw materials must be made into preforms before blowing. Nowadays, environmentally friendly plastics made of PET are widely used.
Therefore, many bottle blowing machine manufacturers have improved their original blow molding machines, which are hydraulic bottle blowing machines. The tubular plastic parison obtained by the hydraulic bottle blowing machine through extrusion or injection molding of thermoplastic resin is hot (or heated to a softened state) and placed in a separate mold. Immediately after closing the mold, compressed air is introduced into the parison, causing the plastic parison to expand and cling to the inner wall of the mold. After cooling and demoulding, various hollow products are obtained. The existing bottle blowing machine has a complex structure, poor stability, inconvenience for operators, and low controllability, which is not conducive to the promotion and application of bottle blowing machines in the market.
In order to solve the above problems, our bottle blowing machine manufacturer has adopted a brand new bottle blowing machine, including a safety protection device installed outside the bottle blowing machine. The safety protection device is equipped with a raw material conveying device, a heating device, a forming device, a turning device and Storage device; the raw material conveying device includes a moving frame with a moving shaft, a driving device that drives the moving shaft to rotate, and a preform moving base. The preform moving base includes a pair of clamping arms forming an arc-shaped cutting part, and the lower part of the clamping arm is fixed A support plate is provided; the heating device includes a heating cover and an electric heater, and the heating cover is arranged above the forming device; the electric heater includes a heating motor and a heating tube; a plurality of heating tubes are arranged in parallel in the heating cover. A heating cover sealing plate is provided at the end of the heating cover body, and an intermediate sealing plate is provided in the gap between the two heating cover sealing plates.
By using the blow molding machine of our blow molding machine manufacturer, the main effects are reflected in the following aspects: by setting up a mobile frame fixedly installed in the raw material conveying device, and setting a moving shaft on the moving frame to rotate and drive the preform moving seat on the moving shaft Mobile and high stability. The clamping arm arranged in the preform moving seat can reasonably and effectively clamp the preform in the middle to prevent the preform from moving or shaking during the movement. The slide rail is fixedly installed on the moving frame, and a moving slide block that cooperates with the slide rail is provided under the support plate, so that the preform has higher stability during movement.
Shenghe Machinery talks about the production and process flow of plastic bottle blowing machines used by bottle blowing machine manufacturers.
A bottle blowing machine is a device that converts plastic particles and plastic preforms into hollow containers through a blow molding process. The more common machines include pp and pe one-step hollow extrusion blow molding machines, pet, pc or pp two-step stretch blow molding machines, and newly developed multi-layer hollow extrusion blow molding and stretch blow molding. At present, the bottle blowing machines used by bottle blowing machine manufacturers generally use a pressure-driven method to close the mold. The pressure is unstable and the mold closing force is low, which can easily make the parting line on the bottle body thicker and affect the impression. This makes many bottle blowing machine manufacturers have low production efficiency and poor product appearance.
To this end, our bottle blowing machine manufacturer has proposed a new plastic bottle blowing machine, which includes a frame and a preform discharging mechanism. The frame is fixedly equipped with a mold frame, a preform turning mechanism and a finished product turning mechanism; the frame is equipped with a The endless chain is connected in turn between the preform turning mechanism, the mold base and the finished product turning mechanism; the billet feeding mechanism transports the billet to the billet turning mechanism, and the billet turning mechanism flips the billet to the supporting gear of the ring chain, and the billet is transferred by the ring chain The conveyor passes through six groups of blank heating modules, mold frames and finished product turning mechanisms in sequence to complete preheating, bottle blowing and finished product unloading. It includes a mold frame fixing frame, and a middle bracket is fixedly installed at the top center of the fixing frame; a left rocker fixing bracket and a right rocking rod fixing bracket are respectively fixed on both sides of the middle bracket; the right rocking rod is fixedly connected to the right rotating shaft and fixed The top of the frame is provided with a right hole below the right rocker. The bottom end of the right rocker is hinged with a right connecting rod that passes through the right hole. The bottom end of the right connecting rod is hinged with a right pressure lever. The right pressure lever is hinged with a pair of The right support rod is arranged on both sides of the right pressure rod. A lifting cylinder is fixedly installed below the frame mold frame, and the inflation needle passing through the top of the frame is fixedly connected to the telescopic rod of the lifting cylinder; the lifting cylinder drives the inflation needle to be inserted into the mold cavity. Parallel slide rails are fixedly installed at the inner bottom of the fixed frame, and slide blocks matching the parallel slide rails are fixedly installed at the bottoms of the left and right mold mounting plates. The bottom ends of the left pressure rod and the right pressure rod are fixedly connected with linear guide rods, and the linear guide rods are slidably matched with the bottom of the fixed frame.
Regarding the bottle making process of our bottle blowing machine manufacturer, it mainly includes the following steps: (1) The preform discharging mechanism sets the preform so that the bottle body is transported downward to the preform turning mechanism; (2) The preform turning mechanism transfers the preform to It is flipped and transported to the supporting gear of the annular chain; (3) The preforms transported by the annular chain pass through six groups of preform heating modules and mold frames in sequence; (4) The left servo motor and the right servo motor drive the left and right templates to close the mold , seal the preform in the mold cavity; (5) The lifting cylinder drives the inflation needle to insert into the mold cavity from the mouth of the preform, and the inflation needle inflates the preform to complete the bottle blowing and obtain the finished product; (6) The ring chain continuously transports the finished product To the finished product turning mechanism, the finished product turning mechanism clamps and turns the finished product to complete the finished product blanking.
Compared with the existing technology, the beneficial effects of the plastic bottle blowing machine provided by our bottle blowing machine manufacturer are: novel structure, using a T-shaped support structure, providing stable pressure during mold closing, improving the mold closing force, and reducing the parting line of the finished product. Improve the appearance and performance of finished products.
Shenghe Machinery teaches you how to extend the life of the bottle blowing machine
Generally speaking, when using a bottle blowing machine, you should operate it according to its safe operating regulations. If you use the bottle blowing machine correctly, the damage to the bottle blowing machine will be minimized. So what are the safe operating regulations for the bottle blowing machine?
1. Before starting each shift, lubricating oil must be added to each moving part. (Robot, robot guide rail, opening and closing mold guide rail)
2. The arm swing can be added once every (3-4) days. The large and small chains of the heating machine can be used once a month. Always check whether the main engine reducer and heating machine reducer are short of oil. The main engine bearings can be added once (2-3) months.
3. Before production, check whether the moving parts are firm, whether the screws are loose and fall off, especially where the impact force is strong, and whether the belt transmission part is abnormal.
4. Check whether the high-pressure air source, low-pressure air source, power supply, and water source are normal.
5. Check whether the emergency stop switch, safety door switch, and protection device detection switch are normal.
6. Check whether the embryo feeding and embryo removing parts of the heating head are working properly. If the embryo insertion is not in place, the nut of the embryo pressing device can be adjusted.
7. Check whether the lamp is damaged or broken. Replace in time.
8. Check whether each pneumatic component is leaking and whether the action is sensitive.
9. Check whether the triplet is abnormally leaking, whether it is blocked, and whether the water cup is too full.
10. When the solenoid valve of the bottle blowing machine encounters an abnormality, it must be cleaned in time (cleaned once every 3.5 million bottles).
11. The bottle blowing mold must be cleaned and polished regularly.
12. When turning on the high and low pressure air source switch, you must move slowly to prevent the air source from flowing too fast and dirt blowing into the solenoid valve. At the same time, open the exhaust valve for 30 seconds to ensure that the air is clean.
Working principle of the entire system of Shenghe fully automatic plastic bottle blowing machine
The working principle of the entire system of Shenghe fully automatic plastic bottle blowing machine is relatively simple. Since only the stretching cylinder and pre-blowing air are required, the installation structure is also very convenient. It is worth noting the balance between the recycled air volume and the consumed air volume. Therefore, The relationship between supply and demand should be grasped when producing bottles of different capacities.
Although this system only provides recycled air to the stretching and pre-blowing parts, which seems to be a bit of a fly in the ointment, its investment is small (taking SBO10/14 as an example, it only costs about 20,000, depending on the price of accessories), and the return is large (years Cost savings of RMB 160,000 to RMB 200,000), strong independence (in case of failure or other reasons, the original air supply system can be used), high flexibility (simple and convenient installation), which is in line with the basic principles of our technical transformation project, making the product more Have market competitiveness.
When the machine is idling but not blowing bottles, the low-pressure air passes through the solenoid valve of the original pipeline to the air storage pipe of the stretching cylinder. The recovery air storage pipe and the air storage pipe of the stretching cylinder are isolated by a one-way valve. There is no low-pressure air in the recovery air storage pipe. The entire stretching air path system and pre-blowing system remain in their original state before modification.
When the equipment starts to blow the bottle, the high-pressure gas in the bottle passes through the exhaust pipe of the three-way valve 10 and enters the recovery gas storage pipe 6 through the one-way valve 12. When the equipment runs for one cycle and recovers enough gas, use the manual solenoid valve 1 to close the original puller. Stretch the low-pressure air inlet and pre-blow air inlet pipelines. At this time, the stretching cylinder and pre-blow air are supplied by the recycled air storage pipe. Since the volumes of bottles produced are different (0.6L, 1.25L, 2.0L, etc.), we can appropriately Open the exhaust valve 9 to discharge the excess air from the muffler to maintain a balance between the recovered air volume and the consumed air volume. If there is still residual air in the recovered air storage pipe, it will be discharged through the 15bar safety valve 4, so the safety valve must have enough The flow rate allows excess gas to be discharged. When the bottle blowing is stopped, the manual solenoid valve is opened to supply air from the original low-pressure and pre-blow pipelines.
What are the characteristics of Shenghe fully automatic bottle blowing machine?
The fully automatic bottle blowing machine is a packaging technology that puts items into an airtight container and then evacuates the container before sealing it, so that there is basically no air in the sealed container. Fully automatic bottle blowing machine technology originated in the 1940s. In 1950, polyester polyethylene plastic film was successfully used in plastic bottle blowing machines. Since then, plastic bottle blowing machines have developed rapidly.
In fact, vacuum should be understood as a space in which gas is thinner. In a designated space, the gas state below one atmospheric pressure is collectively called a vacuum. The rarefaction degree of gas in a vacuum state is called degree of vacuum, which is usually expressed as a pressure value. Therefore, the plastic bottle blowing machine is not actually a complete vacuum. The vacuum degree in food containers packaged with plastic bottle blowing machine technology is usually 600-1333Pa. Therefore, the plastic bottle blowing machine is also called decompression packaging or exhaust packaging.
The characteristics of Xianglong fully automatic plastic bottle blowing machine are as follows:
1. Part of the air (oxygen) in the packaging container is eliminated, which can effectively prevent food from spoiling.
2. The use of packaging materials with excellent barrier properties (air tightness) and strict sealing technology and requirements can effectively prevent the exchange of packaging contents, which can avoid food weight loss and taste loss, and prevent secondary pollution.
3. The gas inside the container of the fully automatic bottle blowing machine has been eliminated, which accelerates the conduction of heat, which can improve the efficiency of thermal sterilization and avoid the rupture of the packaging container due to the expansion of gas during heating sterilization.
In the food industry, fully automatic bottle blowing machines are widely used in various cooked products such as chicken legs, hams, sausages, etc.; pickled products such as various pickles, soy products, preserved fruits and other foods that need to be kept fresh are becoming more and more popular. Use plastic bottle blowing machines. The food that has passed through the plastic bottle blowing machine has a long shelf life, greatly extending the shelf life of the food.
