Spray cap molds are used in the molds for producing insecticide shells. They are made in accordance with the shape of the insecticide cover required. They are injection molded with plastic and processed into insecticide shell parts through various processes. The principle of the spray tank is that the liquid is pressed out of the valve by using air pressure. The liquid can be sprayed evenly. The direction and dose can be controlled. Any content can be easily put in and easy to use.

Most of the plastic flip top caps mould are designed with two-time ejection structure. The core is pushed out two times. The stripper plate and the ejector sleeve in the middle of the product are pushed out together to 14mm, and then the stripper plate push out continually until the flip top caps drops.

Cap size: ø90.7 X 93 X 25mm Cap weight: 36gm Material: HDPE Mold: 4 cavities The thread part of this cap is designed with thread rotation off, and the motor device is used to drive the gear to rotate. The cap must be designed with a stop device to prevent the product from following the rotation when the thread rotates, resulting in the scratch of the cap thread. After the thread part of the cap is separated, use the ejector plate to eject. Compared with thread strength and thread rotation, thread rotation is more difficult to make, which requires high-precision processing equipment, high installation accuracy and accurate positioning between plates, otherwise it is easy to cause the problem of parts stuck and motor or oil cylinder not moving.

Each cavity of this cap mold is designed with separate inserts, so that each cavity product in the process of injection molding maintain the same injection molding pressure, clamping force and other molding conditions, so that the product quality is more stable and reliable. Moreover, the independent insert design can make the life of the mold longer. If there is any problem with the parts, the parts can be directly replaced without affecting the production schedule.

This double color oil cap is applied for automobile lubricants, which is made by double color rotary injection molding process. The mold is composed by two different molds, one for making first color with customer's logo, the second mold is for making outer color. This kind of double color injection is better then single color or screen printing, meanwhile, the logo is not easy to be faked which is the best solution to rise company image up.

The unscrewing device of this cap mold is hydraulic motor. The ejecting sequence of this cap mold is to let the upper press plate open the mold first, and rely on the I-shaped block to drive the cavity slider to slide away. The mold is opened to a certain stroke, and the caps will be unscrewed by hydraulic unscrewing motor. The left and right thimble plates are performed simultaneously. The spring is pushed out of the barrel by the force of the spring, so that the product is firmly in the core part. After opening the mold, the oil cylinder pushes the rack, drives the central drive shaft, drives 4 product threaded shafts backward to disengage the product, and then relies on the 2 ejector rods on the outside of the machine, and the ejection plate pushes caps off from mold.

This double color cosmetic cap is not only two colors, but also the caps have to be demoulded out from mold by unscrew device instead of conventional forced ejection. The mold structure is more complicate than other double color mold and mold dimension is bigger. Moreover, the steel of unscrew device shall be high-end quality with heat treatment in order to avoid wearing and tearing in short time of movement.

Flip top shampoo cap is one-time use of large-scale production product. Normally, after injecting, there is no more surfaces processing, and it can directly enter the subsequent automatic packaging. Therefore, the appearance of the flip top shampoo cap is required to be high, and there are no obvious molding defects.

The cap of salt shaker is combined with lid and cover. There are two holes on lid for fixture of cover, which lid mold shall be designed with lifters. The neck of lid is necessary to design sliders before being ejected out from cavities. This design is to protect the thread of lid and avoid damage by force ejecting. Briefly, the lid looks simple and common plastic part, the mold design is more complicate.