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Crate Mould(FURNITUREMOULD) tool ejection systems vary greatly in complexity and design. The primary function of any injector system must be to remove the molded part from the mold when opened, thereby allowing the press to be recirculated. Once exiting the crate mould, the assembly is free to fall into the molding area under gravity or otherwise removed, for example. Through the robot. Typically located in the core portion of the mold, the ejection system can be actuated by the opening act of the molding machine or mold.

Some of the most commonly encountered spray components are listed and described below.

(a) Ejector Prohibition: The spray bar mechanically connects the mold injection system to the mechanical interface of the molding machine. The rod can be attached to the mold (for example by means of a thread) or used as a door knocker without any mechanical connection between the mould or machine.

(b) Ejection plate: The ejection lever transmits the ejection force as a single point load to the center of the ejection plate. The applied load is distributed to various components that are attached or contained within the panel assembly. The spray plates must be rigid structures to withstand the relatively high cyclic loads imposed on them during use. If the plate is bent or bent under load, tool wear may occur, which may significantly shorten the life of the mold.

(c) Support column and parallel block: These components pass the clamping force through the die back plate and directly to the core plate around the ejector plate groove. The struts are also used as guides for positioning the ejector plate assembly. The amount of jet stroke available is primarily determined by the total height of the two components.

Thimble and blade: These head components are trapped between the ejector plates. The thimble and the blade are typically located within the core assembly, are located in the reaming hole and are grounded flush with the top plate, and the top plate is fully retracted. Due to the continuous friction within the core, components such as these are prone to wear during use. Most pins and blades mounted on modern molds are standard components, usually produced in large quantities, and catalogs are also ordered. Thimbles and inserts are good examples of standardized applications that reduce tool maintenance and construction costs.

Peeling plate: The use of the peeling plate enables the applied ejection force to be transmitted to the periphery of the molded part, thereby producing a more advantageous spraying method than the pin or the blade. They are often used in thin-walled molded parts to avoid damage. The release panel is located in front of the core panel, above the extended core, which is also used to position the panel, typically a tapered fit. The peeling plate is guided over the main position of the mold. The pop-up force can be applied to the board in a variety of ways, for example, (i) by the opening act of the press; (ii) directly by the jack; (iii) the top board is indirectly pushed through the putter.

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xiu Mar 25 '19 · Tags: crate mould, dustbin mould

Improper care is the main cause of damage to Crate Mould(FURNITUREMOULD). Using a metal screwdriver to remove the jammed parts can result in scratching the surface of the cavity. This scratching results in a cosmetic defect on the molded part, but may also affect a particular size and cause it to out of tolerance.

It may also act as an undercut and cause subsequent parts to hang without popping or at least breaking. Failure to lubricate moving parts (such as slides and cams or guide pin bushings) will cause the sliding parts to wear out, eventually causing the parts to get stuck.

Crate mould that use an improper rag to wipe the cavity surface can also cause minor, significant damage to highly polished surfaces. Improper processing can cause serious damage, such as when the technician uses too much injection pressure at the start-up and flashes the mold. The flash can be between the guide pin and the bushing, or between the pinholes of the ejector, or between vertical separations, and can force the side walls to move outward or around the sliding mechanism and cam. This locks the mold in place when trying to open it.

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xiu Mar 20 '19 · Tags: crate mould, dustbin mould

The so-called barrel temperature control refers to how the plastic in the barrel is uniformly heated from the raw material to the plastic viscous fluid, that is, how to configure the temperature of the barrel. The barrel temperature adjustment should ensure that the plastic is well plasticized and can be injected smoothly without causing decomposition. This requires that we do not consciously lower the plasticizing temperature because of the sensitivity of the plastic to temperature and forcibly filling the Crate Mould(FURNITUREMOULD) with injection pressure or injection speed. The melting temperature of plastics primarily affects processability, but also affects surface quality and color.

The control of the material temperature is related to the crate mould. The parts are large and simple, and the part weight and injection volume are close to each other, requiring higher baking temperatures, thin walls, complicated shapes, and high baking temperatures. For thick-walled parts, some of which require additional operations, such as mounting inserts, can be used to lower the temperature of the oven. To determine if the temperature of the plastic solution is appropriate, use a jog operation to observe the low pressure air and observe the appropriate temperature. The material should be sprayed vigorously, vigorously, without foam, without curling, and with continuous illumination.

The material temperature is generally configured in ascending order from the feed portion to the discharge portion, but the excessive exposure of the plastic to prevent decomposition and the change in the color of the part may also be slightly lower than the middle portion. The incorrectly configured material temperature may sometimes result in the card's screw. Fault, the screw will not rotate or idle. It is also possible that the injection pressure is too high or the screw check ring (meson) does not allow the thin molten material at the front of the cartridge to flow back into the feed zone.

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xiu Mar 18 '19 · Tags: crate mould, dustbin mould
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