News-Zhanwang Machinery_Pneumatic hydraulic mechanical parts

Connecting structure of piston rod and piston and how to choose piston rod

Piston rods offer significant advantages in practical applications, and the connecting rod structure of the piston is also unique. When used in combination, it is essential to carefully select hydraulic cylinders that demonstrate good operating and production performance. Such products will be highly reliable. The connection structure between the piston rod and piston, and the manufacturing method of the hydraulic cylinder with this piston rod, are essentially the same.

2020

What does the mold pull rod spacing mean in the injection molding machine parameters?

The actual usable area of the template: the greater the distance between the ejector rods, the greater the actual width and height of the grinding tools that can be accommodated. Because injection molding machines need to install plastic injection molds between the moving template and the fixed template, plastic products can be processed. If the mold is to be installed between the two templates, it must pass through two adjacent ejector rods, so the shape of the mold must be smaller than the spacing between the ejector rods.

2020

A Brief Discussion on the Methods and Principles of Rectifying Piston Rod Deformation

After nitriding, the piston rod sometimes deforms. At this point, the finished size requirements have been met, and the surface hardness is very high. It cannot be refined by machining methods. Only straightening methods can control the deformation to a reasonable level. Within the range. Commonly used pressure straightening machines, whether hot or cold, have straightening accuracy that is artificially influenced and can reach 1 to 2 millimeters.

2020

What are the causes of ejection rod breakage?

Fatigue failure. The working process of the ejector rod is a process of alternating stress, so any factor that causes stress concentration may lead to fatigue failure. For example: 1) Steps with large changes in shaft diameter. 2) The transition part has no fillet, undercut, etc. 3) Surface scratches or accidental damage to the shaft surface during threading. 4) The surface roughness of the thread is too large. 5) The thread has been compressed for a long time, and the surface is damaged due to insufficient surface strength (at the die adjusting nut). 6) Improper heat treatment of the threaded surface can lead to stress concentration. 7) Material defects.

2020

Ejection Rods: The relevant function of ejector pins in injection molds

The sprue puller, also known as the ejector pin in an injection mold, plays a crucial role. In thermoplastic injection molds, there's typically a cold material well. Its function is to store cold material at the nozzle tip during the injection interval, preventing it from entering the cavity and affecting the quality of the plastic parts. However, after opening the mold, the cold material stored in the cold well must be ejected along with the plastic part via the sprue puller to facilitate injection molding in the next cycle.

2020

What to do if the Corinthian column balance fails? Are there any solutions?

Tie bars are rod-like components installed in machinery or buildings that provide a pulling function. The principle is to balance the sliding of the template and withstand the tension caused by clamping. They are an important component of the injection molding industry. In clamping machines, the performance of tie bars directly affects the rigidity and stability of the system. Only by improving the structural characteristics of tie bars can the rigidity and stability of the system be effectively improved.

2020

Correcting the Gollin column: How to correct the Gollin column of an injection molding machine

For adjustments to the Gollin column, if it's a self-adjustment, suitable molds are usually installed on the machine. After locking, a percentage gauge is used to measure the distance between the four columns, and then the mold is opened to adjust the nuts on the top plate to achieve adjustment. However, this method is suitable for major repairs of the Gollin column. Second-hand machines will have some error traces.

2020

The importance and methods of Corin column maintenance

The maintenance methods for Colin columns are very important, but if the methods are incorrect, there will still not be much effect. In other words, only reasonable maintenance can help extend the service life of the Colin column. Even simple oiling requires very specific methods. A Colin column is a rod-like component installed on machinery or buildings, playing a traction role. The principle is to balance the sliding of the template and withstand the tension caused by clamping. It is an important component of the injection molding industry.

2020

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Contact Information

Dongguan Zhanwang Machinery Co., Ltd.

Add.: Building 3, No. 6, Henger Road, Liangbian Village, Liaobu Town, Dongguan City, Guangdong Province, China
Tel: +86-769-83283962 / 83326059
Fax: +86-769-83280127
Contact: Mr. Zhang
Mobile: +86-136 0967 5106
Email：506376694@qq.com

Anhui Weiye Machinery Co., Ltd.

Add.: Industrial Park, Funan County, Anhui Province, China
Tel: +86-558-6038888 / 6666952
Fax: +86-558-6666951
Email：506376694@qq.com
Contact: Miss Zhang
Mobile: +86-18681037811

Anhui Daliang Machinery Co., Ltd.

Add.: Industrial Park, Funan County, Anhui Province, China
Tel: +86-558-6038888 / 6666952
Fax: +86-558-6666951
Email：506376694@qq.com
Contact: Miss Zhang
Mobile: +86-18681037811

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