Chinese injection mold essentials
- Injection mold making
- 500USD Minimum Only
- 15 days
- Product description: Essentials of China injection mold making company, for screw, thickness, locating pin and ring, bushing, groove, sleeve, cooling, pipe, and slider.
- Injection mold design essentials in China company
- The Injection Mold making Plane View Should be Labeled Part
- Thickness, screw, and template of China Injection Mold
- Locating pin and ring, gate bushing of Injection Molding Design
- Groove, Sleeve Key Point of Injection Mold in China
- Injection Mold Cooling, Pipe, and Silver
Injection mold making design essentials in China company
- Use the standard mold base structure set of the injection mold base.
- Use is steel or the same specification standard plastic molding parts, accessories.
- All the GUIDE PIN, GUIDE PIN), BUSHING (BUSHING) must be convex type in the end.
- All china injection mold design drawings paper sizes should be unified use full size, and after approval, to begin to make.
- The plastic mold on the finished part processing should be in the finished product figure size tolerance of half value for machining tolerance, tolerance of finished product on the drawing shall be used for processing.
- All units of measurement will be subject to the imperial use mm in length, use kg weight, temperature using (C).
7. For the unit with the imperial PSI pressure, 1 PSI = 1 pound per square inch = 14.2 kg/cm2.
- Confirm the injection mold thickness, clamping plate, ejection stroke.
- Cavities and four sides die hole position, “A” “B” plate on both sides of each adjacent at least one die, other templates at least one side have Die.
- A, in the four-pin eccentric, must make it, not with the other three symmetrical, to prevent cavities, reverse plastic mold clamping.
- Print specifications and hardness of steel in mould kernel underside.
- Detailed material table and marking material specifications and surface treatment, electric heater wattage, and labeled size specifications and voltage.
- Print, number all the plastic mold making parts.
- Molding two sides, should with packing before with iron bands, in order to avoid the plastic injection mold making surface.
- The same cavity finished with more than one hole, should be numbered consecutively in order to identify the cavity.
- Need to have one hanging on the mold base and mold center of gravity position, in order to avoid a punching die mold tilt, and determined the thread and the degree of deep enough load mode.
- In addition to the cavities with the large steps on broken, all should device die locking block (PARTING LINE LOCKS).
- Rib depth more than 5 mm, should be at the bottom of the rib and gas on the pin or to insert plastic packing.
- To pin when doing printed on the top of the pin should be extended into steel and avoid the pressure loss of the top of the pin or deformation.
- The finished product important place, should be a bit reserved size, avoid processing size that is too large and cause repair welding.
- The cavities repair welding is not allowed without permission.
- Under special circumstances to repair welding to repair the mold. We should choose the mold with the material welding, so as to avoid material of different influence on product appearance and leave a mark.
- The assembly group shall indeed control tolerance, cannot have hit the traces left.
- All of the templates in addition to the parting surface, the rest of the corner should be chamfer.
- The use of the mold of the electric heater must be attached circuit diagram so that production units correct connection.
- The mold should be textured processing, need at least a 2-degree draft Angle above, texture depth is 0.001 per deep “need to add 1-degree draft Angle, for example: when the depth of 0.003 with 5 degrees of draft Angle, the textured cavity surface must be at least with # 300 sandpaper before polishing.
- Confirm cavity, mold base strength is enough.
- Mold design should conform to the requirements of the finished product drawings notes.
- Provide all do not belong to standard parts detailed drawings.
- Cavities surface after plating treatment should be heated mould kernel to 500 f to 1-inch thickness heat for 1 hour, to prevent cavities embrittlement.
- The thickness and adhesion strength of chrome, special attention should be paid not peeling off after use.
- Chinese ejection rod drawing of plastic machine, main ingredient head-end barb is designed, and the three-piece or the use of shell plate mold its design must be designed barb please pull rod.
Key points of mold assembly drawing make cavities [a] plane view should be labeled part
1.1) The pattern master all the basic dimensions.
1.2) The label template, cavities, mould kernel hole size, location.
1.3)Mark fixed screw, dowel pin position.
1.4) Label die groove size and location.
1.5) Mark gas gap, facing the actual contact area size, location.
1.6) Mark pin, slider, hydraulic cylinder position.
1.7) Mark the pipe loop size, location.
1.8) Labeling is expected to ditch, into the gate, hot nozzle position, and size.
1.9) Mark surface fixed block size.
1.10) Try to use section express part need to make it more clear.
1.11) Tooling corners pry china mold size of 45 degrees X 6 mm deep.
The Injection Mold making Plane View Should be Labeled Part
- Ejection system all basic dimensions.
- Roof length and width size.
- The screw position.
- Mark out on the bottom hole size, and location.
- Marking on the ejector plate screw, dowel pin position.
- Mark the pipe loop size, location.
- Marking Die groove size, location.
- Male die surface thimble position.
- Mark template, cavities, mould kernel hole size, and location.
- Mark pin, slider, hydraulic cylinder size, and location.
- Mark surface fixed block size, location.
- Mark ejection system size, location.
- Mark into the gate size and location.
- Mark returns pin size and location.
- Roof hanging Die minimal size 10 mm – 16 x2 holes.
- As far as possible use of 50 mm diameter of the male columns, such as mold length is used when more than 500 mm, 70 mm diameter of the support column, in order to make the male template reserved stress, middle support column height should be 0.05 mm high position than other columns.  section view part
Thickness, screw, and template of China Injection Mold
- The thickness size label template.
- Mark the pipe loop size, location.
- The minimum use of M12 hex socket screws or larger fixed template.
- cavities hole by the parting surface is at least 12 mm to 20 mm depth of tight fit.
- Injection mold making cavities should be higher than the template 1 mm (minimum) to 0.5 mm (maximum).
- The guide pin length is longer than the male face high at least 20 mm.
- The view should be labeled mold total length, total width.
- The figure should be marked on all cavities, the top piece, pin, slider, hydraulic cylinder size, and location. C. material head BUSHING (SPRUE BUSHING), LOCATING pin (LOCATING RING)
Locating pin and ring, gate bushing of Injection Molding making Design
- Use the China mold same size head BUSHING, LOCATING pin.
- The marking head the ball size for the opening size and 20 r.
- The locating ring diameter is 100 mm in diameter.
- Gate bushing length with less than 75 mm advisable, such as A plate thickness of more than 75 mm, the gate bushing should be inside the template, make material head bushing within 75 mm in length.
- Use the M6-20 screws or 6 mm diameter dowel fixed gate bushing. D. groove (RUNNER), into the GATE (GATE).
GROOVE, SLEEVE KEY POINT OF INJECTION MOLD in China
- As far as possible, using a circular groove.
- The label material groove, into the gate, groove, and into the gate gap size.
- The separation materials plate (RUNNER BARS) needs heat treatment.
- The grooved ends should be COLD material groove (COLD SLUGS).
- Express product was into rubber, in order to prevent affecting the appearance and product assembly.
- Using dot into the gate, such as mold structure should allow cavities in the use of the shell plate to ensure that the main ingredient from the head.
- Into the gate and is expected to ditch all needs polishing.
- In the gully, the end should be combined with gas.
- The design of various gates with reference to the conventional mold design specification.
Injection mold used in gate types:
- The disc type (DIAPHRAGM)
- The small dot (PIN)
- The feeding head straight irrigation type (SPORE)
- The form of FAN (FAN)
- Convex plate (TAB)
- DIAPHRAGM (FILM)
- Press the knife type (EDGE)
- Latent type (SUBMARINE)
- Needle POINT (PINPOINT)
- Roof trip distance dimensions.
- Mark roof pad button BUTTONS (STOP), roof area for each roof cushion increasing area of 200 square button on the back.
- The larger size mold adopts four convex type guide pin and bushing, the narrow length of less than 300 mm in the width of the roof available two convex type guide pin and bushing guided ejection system.
- Use at least four return pins, the plastic mould length of more than 600 mm need to use return pin 6.
- A fixed number of screws, thimble flat, and roof per 200 square millimeters a screw is calculated.
- Tapping on the back to match the roof production molding machine plunger, 200 under the machine tapping M10, more than 200 machines M16.
- When the plunger plays around half the level in the finished product, should cooperate with the roof early return a device, in order to avoid thimble hit the button mold surface, when the product material is ABS, PC, HIPS, use 6 mm (minimum) thimble, material for PP, PE with 10 mm thimble, materials for PVC. KRATON uses a 12 mm thimble.
- When using sleeve ejector, heart clamp pin application by the male die pressure and fixed on the back of the base plate, thimble casing heart pin should use standard specifications.
- The finished product on the hollow cylindrical, all need to casing ejection.
- As far as possible, avoid using positioning thimble, use as far as possible when you must use D shape head-fixed thimble. All the plunger and plunger sleeve shall be numbered, in order to identify, assembly.
- Finish the top number, the thimble required can be calculated by the formula, with reference to the conventional mold design specification. E. cooling pay part
INJECTION MOLD DESIGN OF COOLING, PIPE, AND SLIDER
- To plane, section view marking cooling loop size, location. Unless otherwise specified, all water pipe diameter of 10 mm with NPT pipe teeth (PT) of non-public, and cooperate with the commonly used specifications fast connection, hole distance should be finished at least 12 mm, at least 6 mm away from the top of the pinhole.
- Male, cavities have to cooling loop, unless otherwise specified, should not only be cooling in the template but beryllium copper benevolence in addition to outside.
- Print the “IN”, “OUT” marked and numbered IN pipes into, export position.
- Label all O – RING and plug head size, location.
- O – RING is only applicable to the hole of the vertical joint, the joint shall not be used for horizontal holes.
- Mark loop in the inland waters flows direction.
- The Loop separator used copper or stainless steel sheet, and at the top of the chamfering and assembly.
- When using a full type hot glue system, it cannot be used in cavities side cooling circuit O – RING.
- The pipe channel position must rely on the finished wall thickness thicker and projection location. The center distance between pipe and pipe was not less than 30 mm. 11. When using commonly used specifications of bushing cooling suite cooling core, must confirm the joint positions for use check drainage belt, and lock position.
- All pipe circuits must pass through 60 air pressure tests, check whether there is a leakage phenomenon.
- Die sulcus avoids water connection.
- Avoid pipe joint position at the top of the mold surface position, if you can’t avoid, in the top of the pipe and the parting surface drains must do 12 mm.
- Any straight pipe length shall not be too long, processing difficulties.
- The pipe joint and the pipe joint can be adopted silver welding.
- Any conduit shall not exceed 15 turning points in the circuit, (when using the barrier with a total of four turning points).
- The baffle plate and the hole at the top have a hole diameter clearance shall be maintained.
- Water pipes and joints of screw tooth cooperate closely, tapping depth, tap size, and check discharge must be carefully chosen, close your dead end of the plug head also shall not be leakage.
- Standard cooling circuit design, mold cooling calculation formula of pipe mouth specifications, and O – RING device design of conventional mold design specification. F. mobile insert, slider part
- The action of the slider friction surface all needs to do X type surface butter.
- Use the pin, shall determine the slider in the mould surface after separating began to slip, pin specifications should be adopted.
- The sliding block should be equipped with a positioning bead and spring, and to ensure the slide after the open position.
- The slides should be installed at the bottom of the wear plate heat treatment.
- Use a clamp fixed guide slide block.
- The slider design should strive to tear open outfit is easy, so on the machine maintenance.
- When clamping, thimble collision with the slide block by using a previous return device.
- The slider volume compared to the finished product size below, all the sons of the slider have an independent cooling loop.
- The slider move travel, mobile than the actual finished product needs a 3 mm distance. 30. The Angle pin for 10 to 25 degrees, unless specified.
- When closing the slider should be cant lock block lock, in order to ensure that the slider position.
- Cant lock block cant Angle should be larger than the Angle pin 5 degrees.
- When using hydraulic cylinder drives the slide block, the hydraulic cylinder under pressure to a minimum of 2000 PSL (140 kg/square kg)
- The slider and pin design, refer to the standardization of mold design.