1. Start mold clamping

1. Start clamping pressure: the initial setting value reference is 25. When the pressure is too small and the speed is too slow, you can try to increase the speed. If the pressure is too small and the speed cannot be increased to the required speed, increase the speed by +5 each time. Try, pay attention, when the pressure is set large, the moving platen will instantly increase the high pressure to change the static state and become moving, so that the moving platen hole and the tie rod will generate huge friction, which will speed up the wear of the machine's moving platen hole and the tie rod for a long time. The decrease in the stability and precision of the movement of the moving template may affect the production of individual molds that require higher precision for the clamping mechanism.

2. Start the mold clamping speed: see the actual situation, but pay attention to the action should not be too fast. The speed should have a continuous movement with the next mold clamping action, instead of obvious pause action switching, it is best to set the speed high and the pressure Set low to control the speed by pressure.

2. Low pressure mold clamping

The mold is pushed by low pressure and low speed, starting from the distance that needs safety protection and ending when the mold is completely closed

1. Low pressure mold clamping speed: According to the actual situation, the speed should be slow. If the speed is too fast, even if low pressure is set, inertial motion still has a huge impact and destructive force. When there is an unexpected hard obstacle such as the position deviation of the sliding speed and the broken thimble, the mold closing action is entered. Under the effective low pressure and slow mold closing protection parameters, the impact damage is greatly reduced.

In fact, you can set the speed to several tens, then do not move it, and then start to adjust the pressure very low, such as 5 for testing, control the speed with pressure, and then step by step to pressurize to a suitable mold clamping protection speed.

2. Low pressure clamping pressure: You can adjust the speed very high first, and adjust the pressure very low, for example, 5 to perform the clamping test. Because the pressure is low, even if the speed is set too high, the support of the pressure will be lost, and the clamping speed will not be very fast. Fast, control the speed with pressure. On the basis of 5, increase it a little bit up to the ideal mold closing protection speed, and close the mold with the lowest pressure.

3. The starting position of low-pressure mold clamping: (that is, the end position of the previous section of mold clamping). This value should be set according to the size and structure of the mold, which is generally between 5-20 cm before the mold is closed. Do it. Many people start to use low pressure when the mold is closed too close. The distance that should be protected by low pressure in advance is impacted by the previous high pressure speed and mold closing, the sliding position is shifted, the ejector pin is broken, and other unexpected hard obstacles occur. , slammed hard, at this time, the low-voltage protection is invalid, and it is late.

4. The low-pressure mold clamping end position (ie the high-pressure mold-clamping start position): This parameter is the position where the mold is just completely closed, that is, the moving template has stopped at the end. When debugging, first adjust the low-pressure pressure and speed, and then adjust the position Set it to 0, and the manual mold closing test with the door closes obtains a value for the fully closed position of the low-pressure mold clamping;

For example, this value is 2.2. The size of this value is affected by the adjustment of the electronic ruler, the tightness of the mold adjustment, and the clamping pressure, and this value will be affected by the machine accuracy and the influence of small debris on the surface of the mold. Each time the mold is closed, it may be affected by There will be small changes, so the end position should be set a little larger, such as adding 0.2 to 2.4 (refer to add 0.1-0.3), and use the lowest position to accurately protect the mold. If the position value obtained by the low-pressure mold clamping test is not used If the setting is larger, 2.2 is used directly. It may often occur that the low pressure clamping position is greater than 2.2, and the low pressure position cannot be completed and cannot be transferred to the high pressure clamping.

However, more people set the mold with a distance of several centimeters or more, and then the low pressure is terminated before it is completely closed, and the high pressure is used, and the low pressure protection is invalid. The material cavity is compressed and deformed.

3. High pressure mode locking

Begin to straighten the closed die lock with the high pressure pusher hinge. Many people start to use high pressure when the mold is not completely closed, and the low pressure protection fails.

1. High-pressure clamping pressure: the initial setting value is 60. When it cannot be satisfied, the pressure is +10 each time. If the pressure is too high, it is not necessary to increase the machine load;

2. High pressure clamping speed: The initial setting value is 25. When it cannot meet the needs, first try to increase the pressure to check. When it fails, try to speed up the speed, +10 each time. The high-voltage mode clamping should not hear excessive noise, the speed is doubled, and the friction loss of the clamping mechanism is increased by N times.

Everyone should pay attention to the difference between mold clamping and mold clamping that I mentioned above, mold clamping = moving template movement, mold clamping = using high-pressure pusher to straighten and lock the closed mold, and low-pressure mold clamping protection settings are actually most people in The start position and end position of low pressure mold clamping are not correct;

First, the mold is too close to the low pressure starting position, the position is too small, and the low pressure protection comes too late, which is affected by the higher and faster pressure and speed of the previous stage (start, fast, high speed).

The second is that the low-voltage termination position ends too early. When the mold is still a few centimeters or more away from closing, the low-voltage protection is terminated and the high-voltage mold clamping is turned to. These two problems generally exist at the same time, which becomes a low-voltage closure. If the mold protection position is too short, the front is threatened by the impact of high pressure and fast mold clamping, and then it is pressed by the high pressure mold clamping pressure on both sides, which is equivalent to the ineffectiveness of the low pressure mold clamping protection.

Under the ineffective low-pressure protection, the following problems may occur when the mold is pressed and crashed: (Clamping the mold at a higher pressure with an obstacle = pressing the mold, and closing the mold at a higher speed with a hard obstacle = hitting the mold)

1. Due to the relatively simple structure of the mold, the clamping pressure is not very large, and the pressure is not damaged.

2. The mold is pressed, which reduces the precision of the mold shape, changes the injection molding conditions, and makes it more difficult to debug the process parameters.

3. The mold is pressed, which reduces the precision of the mold, increases the burr of the formed product, increases the work intensity and workload of the production workers, accelerates the fatigue of the workers, and reduces the output, quality and efficiency of the product. . Work-like enjoyment is declining, and employee turnover may increase slightly as a result.

4. The mold is pressed, which reduces the precision of the mold and increases the burr of the formed product. The originally scheduled personnel have been unable to meet the labor needs of the work, and it is necessary to increase the number of manpower to make labor-intensive production of manufactured products more labor-intensive, increase labor costs, and increase product manufacturing costs.

5. The mold is pressed and bumped, resulting in the mold being damaged and unable to produce, delaying production, and requiring time and expense to repair the mold.

6. The smooth surface of the mold cavity is bumped and crushed. No matter how it is repaired, it is inevitable to leave a patch mark and leave a mark on the formed product. There is a trace of repair on the surface of the smooth product, which is a flaw in the beauty, and the quality and grade of the product may be affected accordingly.

7. The mold is pressed and damaged. Weld and repair bad molds. The quality and performance of the molds decline rapidly, the incidence of mold failures increases, and the cost of mold operation and maintenance increases. With more repairs, more repairs and the gradual decline of precision, the service life of the injection mold will eventually be shortened due to the accidental impact and pressure during production because it is not well protected production.

To sum up, things like stamping and punching, which have a lot of influence on production quality, output, cost, and efficiency, should do something to avoid them from happening.

Wall-Mounted Air Conditioner Mould

1. Air conditioner mould is highly polished.

2. The mould adopts needle valve hot runner to reduce the traces of welding lines.