Specification for mold installation, debugging and removal

1. Purpose

Standardize the installation, debugging, and removal of molds to ensure the safety of equipment and personnel, and to produce qualified products stably.

2 scope of application

This specification applies to mold installation, debugging and removal operations.

3 Job requirements

Precautions for serial number operation procedure operation method

1 Lower the slider to bottom dead center

A. Switch the travel selector switch to the "inch" position.

B. Use the "two-hand button" to lower the slider to the bottom dead center.

Pay attention to the angle indicator of the crankshaft during operation to ensure that the slider stops at 1 to 2 degrees past the bottom dead center.

2Check the height of the punch

A. Check the clamping height of the mold.

B. Adjust the mold mounting height of the punch to 5-10mm higher than the mold clamping height (if adding a shim, add the shim height).

If the mounting height of the punch is lower than the clamping height of the mold or the sum of the height of the mold and the thickness of the shim, the mold will be easily damaged during the installation and debugging of the mold.

3 Inspection, trimming and cleaning of mold mounting surface

A. Carefully clean up the impurities and iron filings on the bottom surface of the punch slider, the workbench and the die handle hole.

B. Repair the uneven surface of the workbench and shim.

C. Clean the mold surface.

D. Confirm the air cushion device.

A. Pay attention to whether the surface of the workbench is uneven. If it is uneven, use oil stone to trim it.

B. Confirm whether the fixing bolts of the mold handle are in good condition.

C. When using the air cushion, confirm whether the air cushion ejector rod is deformed, whether the placement position is appropriate, whether the length is appropriate, and whether waste is trapped.

4 The mold is placed on the workbench of the punch

A. Use suitable transport tools to transport the mold.

B. Lift the slider to the top dead center and place the mold.

C. Confirm the installation direction, structure and state of the mold.

When moving the mold, lower the fork of the forklift and move the mold.

5 Mold installation

A. The mold is installed in the center of the workbench, and the position and direction are adjusted.

B. Confirm the position of the horn.

C. Press the "Stop" button of the motor. When the stroke speed is about 20 SPM, use the inertia of the flywheel to slowly lower the slider and insert the mold handle into the mold handle hole of the slider.

A. The center line of the feeding direction of the sequential mold should be consistent with the center line of the material.

B. Confirm the position of the blanking hole of the mold to prevent it from being blocked by the shim. And avoid the excessive span between the shim irons, which will cause the mold to deform.

C. Pay attention to the use of "inching" stroke operation!

6 Coarse adjustment of closing height

A. Loosen the die handle bolts completely.

B. Lower the slider so that it is against the surface of the upper mold.

A. Push by hand to check whether the mold is moving.

B must operate at bottom dead center.

C. There are markings, bulletproof bosses, bending, and deep drawing molds that must be placed for debugging.

7 fixed upper die

A. First confirm the mold fixture.

B. Fix the mold at 2 or possibly diagonally.

C. Tighten the mold handle fixing bolts.

A. Pay attention to confirm whether the mold fixing bolts, nuts and pressing plates are damaged.

B. For the upper mold over 100kg, 4 places must be fixed.

C. Lightly tighten the mold handle fixing bolts and then lift the upper mold slightly to tighten it again by gravity.

8Confirm the internal state of the mold

A. Clean the inside of the mold.

B. Check all parts of the mold.

C. Fill the guide post, guide sleeve and other sliding parts with oil.

Inspect each part of the mold for any abnormal phenomena such as damage, wear, and installation errors.

9 fixed lower die

A. Fix the die at the bottom dead center.

B. After fixing the lower die, raise the slider to the top dead center.

A. First tighten the upper and lower mold fixing bolts by hand, and run the slider for 2-3 strokes. If there is no vibration, abnormal noise and other abnormal phenomena, then tighten them alternately from light to heavy; fix the bolts.

B. Install the fixing bolts of the mold as close to the mold as possible.

C. Do not hang under the fixed part of the mold. #p#分页头#e#

D. Pay attention to whether there is any abnormal sound at the guiding part.

10 Fine adjustment of the closing height of the punch (DH value)

A. Adjust the closing height appropriately according to the DH value or the state of the workpiece specified in the operating standard.

B. Put in a piece of paper and check the degree of mold clamping.

A. The clamping depth of the blanking die is preferably 0.2-0.3.

B. When debugging the bending die and deep drawing die, pay attention to the indentation, drawing marks and the changes of angle, depth and shape on the surface of the workpiece.

C. Pay attention to confirm whether there are abnormal phenomena such as uneven gaps and mold gnawing.

11 Adjust the limit screw slider of the tappet to raise to the top dead center, adjust the limit screw to make the tappet reliable contact.

A. Pay attention to fix the brake screw.

B. Check whether the ejector pin, ejector plate, ejector pin and ejector are deformed and stuck.

12 Adjust other processing conditions

A, confirm the stamping oil and its equipment.

B. Confirm whether the feeding gap, pressure, release time, feeding center and height are suitable.

C. Confirm whether the air cushion pressure is appropriate.

D. Confirm whether the stamping stroke speed is appropriate.

The mold adjuster will tell the operator about the operation essentials and precautions.

13 tryout

A. The mold adjustment operation should be carried out carefully to confirm the surrounding conditions.

B. Do the relevant liaison work after adjusting the model.

C. Submit the test molds that have passed the self-inspection for inspection.

A. After commissioning, it needs to be confirmed by the monitor or relevant responsible person; the relevant responsible person shall give necessary guidance.

B. The mold adjuster will tell the operator about the precautions for the stamping operation.

14 Ready for mass production

A. Arrange tools and utensils after the test.

B. Clean up the test mold.

A. During normal operation, it is forbidden to loose tools on the punch and feeder.

B. Clean the test molds on the workbench.

15 Unloading mold

A. Clean up debris and other debris inside the mold.

B. Check the technical status of the mold.

C. Apply oil to the moving parts of the mold, and apply anti-rust oil to the edge of the mold that is not used for a long time.

A. Especially large molds should be carefully cleaned before removal.

B. For the next production, check for repairs. If there is any abnormality, report to the monitor immediately.

C. Keep the final product in the bending and stretching mold.

16 To lower the slider to the bottom dead center, you must use the "two-hand button" to lower the slider to the dead center.

17 Loosen the fixing bolts of the mold. Loosen the fixing bolts of the upper and lower molds and the mold handle.

Pay attention to completely loosen its fixing bolts to prevent the punch slider from lifting the mold and accidents.

18 Lift the slider with "inching" operation, slowly raise the slider to the top dead center.

When the fixing bolts of the mold handle are not completely loosened, the slide block is suddenly lifted and the upper mold is brought up.