Plastic extruder filter screen fixing device
A technology of fixing device and machine filter, applied in the field of fixing device of plastic extruder filter
Inactive Publication Date: 2012-06-27
ZHANGJIAGANG LIANDA MACHINERY
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Problems solved by technology
[0002] At present, the general plastic extruder is usually equipped with a filter screen at the junction of the fuselage and the head, and the filter screen filters out the impurities in the melt At the same time, the filtered melt enters the machine head evenly. However, the installation method and structure of the filter screen are different at present. In some cases, the filter screen is directly placed in the filter sleeve without fixing, and the filter screen in this way is easy to float. And crimping, which affects the filtering effect, some press the filter screen through a series of components such as the pressure sleeve and tighten it with screws, etc., the structure is slightly complicated and the installation is troublesome
Method used
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[0013] The present invention will be described in further detail below through specific examples.
[0014] A plastic extruder screen fixing device, such as figure 1 , figure 2 As shown, it includes a filter sleeve 2, the shape of which is cylindrical, and the filter sleeve 2 is provided with a sleeve cavity 23 for installing the filter screen 3, and the bottom of the sleeve cavity 23 is provided with an extraction hole 21, and the fixing device It also includes a filter presser 1, the filter presser 1 includes a presser body that is pressed on the upper edge of the filter sleeve 2, and the lower end of the presser body is provided with several holes extending into the sleeve cavity 23 to compress the filter screen 3 Pressing claw 11, the outer periphery of described pressing claw 11 is provided with wedge-shaped block 12, and the peripheral wall of described filter sleeve 2 is provided with the clamping hole 22 that cooperates with wedge-shaped block 12, and described press...
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The invention discloses a plastic extruder filter screen fixing device with a simple structure and a good fixing effect. The fixing device is easy to assemble. The plastic extruder filter screen fixing device comprises a filtering sleeve which is provided with a sleeve cavity used for arranging a filter screen. A leading-out hole is arranged on the bottom of the sleeve cavity. The fixing device also comprises a filter screen pressing piece. The filter screen pressing piece comprises a pressing piece body pressed on the upper rim of the filtering sleeve. A plurality of pressing teeth are arranged on a lower end of the pressing piece body. The pressing teeth extend into the sleeve cavity, and firmly press the filtering sleeve. Wedge-shaped snapping blocks are arranged on the peripheral of the pressing teeth. Snapping holes coupled with the wedge-shaped snapping blocks are arranged on the peripheral wall of the filtering sleeve.
Description
technical field [0001] The invention relates to a filter screen fixing device, in particular to a filter screen fixing device for a plastic extruder. Background technique [0002] At present, the general plastic extruder is usually equipped with a filter screen at the junction of the fuselage and the machine head, and the filter screen filters out the impurities in the melt, and at the same time, the filtered melt enters the machine head evenly. However, at present, the installation methods and structures of the filter screen are different. Some of the filter screens are directly placed in the filter sleeve without fixing. The filter screen in this way is easy to float and curl, which affects the filtering effect. A series of parts are pressed against the filter screen and fixed by screws, etc., the structure is slightly complicated and the installation is troublesome. Contents of the invention [0003] The technical problem to be solved by the present invention is to pr...
Claims
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IPC IPC(8): B29C47/68
Inventor 郑勇
Owner ZHANGJIAGANG LIANDA MACHINERY