Sealing device for material discharging opening of mixing machine
A sealing device and mixer technology, applied in mechanical equipment, pipes/pipe joints/fittings, pipe elements, etc., can solve problems such as material leakage, and achieve the effect of simple sealing structure, saving raw materials, and protecting and cleaning.
Inactive Publication Date: 2013-10-30
ZHANGJIAGANG BEIER MACHINERY
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Problems solved by technology
[0003] In order to overcome the deficiencies in the sealing device of the discharge port of the existing mixer, the present invention provides a sealing device for the discharge port of the mixer, in which the pressing end face of the sealing gland flange is made into a form with overflow gaps, And a tapered annular sealing ring is installed at the root of the pressing end face of the gland flange, which completely solves the problem of material leakage at the discharge port of the mixer
Method used
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[0012] exist figure 1 Among them, the end face of the sealing gland flange (5) is uniformly processed into 4 overflow notches (2) and 4 centering ribs (1) along the circumference, and the outer circumference of the centering ribs (1) is connected with the discharge channel ( 3) The inner hole at the outlet of the outlet is matched to center the piston plug (6) connected to the sealing gland flange (5). When the sealing gland flange (5) is subjected to the When the force F is greater, the sealing gland flange (5) drives the piston plug (6) into the discharge port along the central axis of the discharge channel (3), and the plastic stuck on the outer circumference of the piston plug (6) The raw material is scraped to the inner end face of the sealing gland flange (5) and overflows from the 4 overflow gaps (2), and the sealing gland flange (5) continues to drive the piston plug without the hindrance of retained raw material (6) Insert along the central axis of the discharge chan...
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The invention discloses a sealing device for a material discharging opening of a mixing machine. A pressing end face of a sealing gland flange is made into a structure with material overflow gaps, and an annular sealing ring with a taper is arranged at the root of the pressing end face of the gland flange; when accumulated materials at the outer circumference of a piston type plug is scrapped towards the pressing end face of the sealing gland flange, all of the accumulated materials can overflow from four large-size material overflow gaps in the pressing end face; the forward movement of the gland flange is not stopped until the gland flange is in place. The annular sealing ring with the taper at the root of the pressing end face of the gland flange is completely in compact fit with a sharp ridge at a step opening of a material discharging channel of the mixing machine, so that very reliable sealing is formed, and therefore, the problem of material leakage caused by a clearance between the outer circumference of the piston type plug and an inner hole of the material discharging channel is effectively solved.
Description
technical field [0001] The invention relates to a sealing device for a discharge port of a mixer used when raw materials of plastic products are mixed before being processed into plastic products, in particular to a sealing device with simple structure and reliable sealing. Background technique [0002] At present, the sealing device of the discharge port of the known plastic mixer is to fix an annular rectangular sealing ring on the pressing end face of the sealing gland flange. After the outside of the sealing gland flange is under pressure, the rectangular sealing ring and the mixer The steps on the discharge channel are closely fitted to achieve the effect of sealing the discharge channel of the mixer during the mixing process. However, in the long-term use process, due to the residual amount of Material accumulation, the rectangular sealing ring is buried, and the thickness of the accumulation material is often different along the compression end face of the sealing gla...
Claims
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IPC IPC(8): B29B7/80F16L55/132
Inventor 何德方孙奕君
Owner ZHANGJIAGANG BEIER MACHINERY