Flow channel structure of double-cavity die for pointed-head product
A cavity and product technology, applied in the field of product mold structure, can solve problems such as easy generation of air bubbles, inconsistent product density, change of flow rate, etc., to achieve the effect of consistent density, quality assurance, and not easy air bubbles
Inactive Publication Date: 2013-11-27
WUXI CITY NEW DISTRICT WEICHUANGLI MOLD FACTORY
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Existing pointed tubular products are all formed in the injection mold. Currently, the runner structure of the double-cavity mold is generally applicable, which flows through the vertical runner to the horizontal runner, and the two ends of the horizontal runner are connected to each other. In the middle of the cavity, because the product is a pointed tubular product, the wall thickness of the cavity is excessive, the flow direction of the material in the flow channel is unstable after entering the cavity, and the flow velocity changes suddenly, which makes the density of the product inconsistent and easy Bubbles are generated, so that the quality of injection molding products cannot be guaranteed
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0007] See figure 1 , which includes front mold 1, rear mold (not shown in the figure, which belongs to the existing mature structure), A board 2, B board (not shown in the figure, which belongs to the existing mature structure), front mold 1, and rear mold There is a cavity 3 in between, and there are two cavity 3, the vertical flow channel 4 is connected to the first-level horizontal flow channel 5 in the lower part, and the first-level horizontal flow channel 5 is connected to the first-level longitudinal flow channel 6 located on one side of the cavity. The two ends of the primary longitudinal flow channel 6 are respectively connected to the secondary longitudinal flow channel 8 through the respective secondary horizontal flow channels 7, and the two ends of the secondary longitudinal flow channel 8 are respectively connected to the corresponding paired third-level inlet flow channels 9, and the paired The tertiary inlet runners 9 respectively communicate with the two ends...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a flow channel structure of a double-cavity die for a pointed-head product. With the flow channel structure, density of a material at all the parts of an injection product is identical, bubbles are hardly generated, and product quality is ensured. The flow channel structure comprises a front mold, a rear mold, a plate A and a plate B, wherein cavities are located between the front mold and the rear mold, and the number of the cavities is two. The flow channel structure is characterized in that the lower part of a vertical flow channel is communicated with a first-level horizontal flow channel, the first-level horizontal flow channel is communicated with a first-level vertical flow channel located at one side of the cavities, two ends of the primary vertical flow channel are communicated with second-level vertical flow channels through second-level horizontal flow channels, respectively, two ends of each of the second-level vertical flow channels are connected with corresponding paired third-level inlet flow channels, and the paired third-level inlet flow channels are communicated with two ends of one side of the cavities, respectively.
Description
technical field [0001] The invention relates to the structural technical field of product molds, in particular to a runner structure of a double-cavity mold for pointed products. Background technique [0002] Existing pointed tubular products are all formed in the injection mold. Currently, the runner structure of the double-cavity mold is generally applicable, which flows through the vertical runner to the horizontal runner, and the two ends of the horizontal runner are connected to each other. In the middle of the cavity, because the product is a pointed tubular product, the wall thickness of the cavity is excessive, the flow direction of the material in the flow channel is unstable after entering the cavity, and the flow velocity changes suddenly, which makes the density of the product inconsistent and easy Bubbles are generated, so that the quality of injection molded products cannot be guaranteed. Contents of th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B29C45/27B29C45/32
Inventor 吕应军
Owner WUXI CITY NEW DISTRICT WEICHUANGLI MOLD FACTORY