An injection mold slider is a tool used in the injection molding process. It helps create uniformity and consistency in the final product.

Without it, the process would become more difficult and time-consuming.This blog post will discuss what an injection mold slider is and its role in the plastic injection molding process!

A slider is a mold component that injection mold slides perpendicular to or at a certain angle to the opening and closing direction of the injection molds during the opening and closing action.

The injection molding slider is used when the product structure makes it impossible to mold release direction without the use of the slider. The slider material itself has the appropriate hardness and wear resistance to withstand the friction of the movement.

The hardness of the cavity or core part of the slider should be the same level as the rest of the cavity and core.

Injection mold slider design

The slider is an important part of the plastic injection mold to complete the side core extraction, it is mainly connected with the molding core and driven by the inclined guide column for core extraction.

Generally, it is combined with the lateral core to form the side slider core, which is called the combined side slider.

If the side core is simple and easy to process, the side slider and side core can also be made into one piece, called an integral side slider.

The slanting hole of the slider is matched with the slanting guide pillar, and it should be made with a clearance of 0.5MM on one side at the same time, so that there is a small empty stroke at the moment of mold opening direction to make the injection molding sliders and the movable core to force the plastic products out of the concave or convex mold before pumping, and to make the locking block detach from the slider first, and then to pump the core.

The structure of the slider depends on the structure of the mold and the size of the side core pulling force.

To make the slider drive the core to draw the core smoothly and accurately, there must be a guide slot on the fixed or moving mold plate, and the slider and the guide slot must be well matched and guided.

After the slider completes the action, it still stays in the guide slot, and the length of the slider staying in the guide slot should not be less than 2/3 of the full length of the slider. There are two common structural forms of guide slots, rectangular guide slots, and dovetail guide slots.

The design principle of the inner slider

The role of the slider is to solve the mold that can not be directly formed. At its most basic level, the slider is used to turn the vertical movement of the mold opening or closing into horizontal motion. Slide mechanisms are typically composed of a few basic components including a forming surface, slider body,guide pin, wedge , press block, and wear plate.

Generally, when you can’t design the side slider and slant top mechanism, you will consider designing the inner slider mechanism, which is not common when we design the mold.

• First of all, the inner slider body will be designed, note that the inner slider is driven to the inner side of the product, and the direction of the backhoe bit is opposite to the direction of the inclined guide column of the common slider mechanism.
• The direction of decoupling between the inner slider and the mold kernel must avoid hollow, which is convenient for the inner slider to draw the core.
• The inner slider needs to be spring-loaded to prevent the slider from going backward without closing the mold and being pressed by the pressure wear plate.
• To facilitate the processing of the front mold, make a wear-resistant block with the inner slider with friction, drive the slider core extraction and reset.
• If a slider width is larger than 60 mm, deployment of 2 angle pins needs to be considered; if the width exceeds 80mm, a guide bar needs to be placed under the slider in middle. If the injection mold sliders is too high, the starting point of the angle pin hole needs to be lowered, so as to ensure smooth travel of the slider.

What is the specific difference between the lifter and the slider on the injection mold?

The difference in meaning

It is a mechanism used to shape the barbs inside the product in the mold design, which is suitable for the simple barbs.

The slider is a mold component that can slide in the mold opening and closing direction or at a certain angle to the opening and closing direction.

Sliders are used when the structure of the product is such that the mold cannot be released properly without the use of sliders. The material itself has the appropriate hardness, wear resistance, and enough to withstand the friction of the movement.

The difference in application

Mold slant top is mainly used in the main mold electrical processing equipment for copper-based, iron-based powder products; mechanical parts, tool materials and products easy to heat parts, etc.; rubber molding mold pressure rubber mold, extrusion mold, injection mold. Rubber tire mold, “O” seal rubber mold, etc.; plastic products forming plus yellow rock process (thermosetting and thermoplastic molding plastic).

Slider is widely used in spraying equipment, CNC machine tools, machining centers, electronics, automation machinery, textile machinery, automotive, medical equipment, printing machinery, packaging machinery, woodworking machinery, mold opening, injection molding machine, and many other fields.

The difference in mechanical mechanism

The mechanical common ejecting mechanism of mold lifter is pushing block ejecting mechanism, using molding parts ejecting mechanism, multi-component integrated ejecting mechanism, air pressure ejecting mechanism, slanting slider ejecting mechanism.

The mechanism to pull out the movable core and then eject the injection molded part from the mold when the molded part is released is called the core pulling mechanism.

How can I determine if an injection mold slider is the best choice to meet your specific application needs?

To determine if an injection mold slide is the best choice for your specific application, you need to consider several factors.

The first is the size of the part you wish to produce. Sliders are typically only used for smaller parts because the mold needs to be able to open and close for the slider to function properly.

The second factor is the material you want to mold. Injection molding slides are not usually used for softer materials because they can cause sticking and uneven cooling.

Finally, you will need to consider the production volume of your part. Sliders can wear out over long production runs and can be expensive. If the product is large, you will need to make spare sliders to prevent wear and tear that can affect your production schedule.

If you consider all of these factors, you should be able to determine if an injection-molded slider is the best choice for your particular application.