Pre-plasticizing shaft supporting and connecting device
A technology for supporting connecting devices and pre-plastic shafts, which is applied to the rigid brackets of bearing components, bearing components, shafts and bearings, etc., can solve the problems of weak structure, unreliability, short service life, etc., and avoid the leakage of lubricating oil. and the effect of dust entering
Inactive Publication Date: 2014-02-12
ZHEJIANG UNIV
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[0003] The purpose of the present invention is to address the above problems, to provide a pre-plastic shaft support connection device; to solve the technical problems of the existing technology such as weak structure, unreliable, short service life and so on
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[0019] Such as Figure 1-5 As shown, a pre-molding shaft supporting connection device includes a pre-molding table 1, a bearing seat 2 fixed on the pre-plasticizing table 1, a pre-plastic shaft 3 passing through the bearing seat 2, and the bearing seat 2 Front deep groove ball bearings 16 and rear deep groove ball bearings 17 are arranged at both ends of the inner cavity, and thrust bearings 15 are arranged between the front deep groove ball bearings 16 and rear deep groove ball bearings 17, and the pre-molded shaft 3 is installed on the front In the deep groove ball bearing 16, the rear deep groove ball bearing 17 and the thrust bearing 15, the two ends of the bearing seat 2 are provided with a front bearing cap 6 and a rear bearing cap 9, and the pre-molded shaft 3 and the front bearing cap 6 and the rear bearing cap 9 A front sealing ring 8 and a rear sealing ring 11 are arranged at the joint, and the front sealing ring 8 and the rear sealing ring 11 are respectively embedd...
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The invention discloses a pre-plasticizing shaft supporting and connecting device which belongs to the technical field of injection molding and solves the technical problems of unfirm and unreliable structure, short service life and the like in the prior art. The pre-plasticizing shaft supporting and connecting device comprises a pre-plasticizing platform, a bearing base fixed on the pre-plasticizing platform, and a pre-plasticizing shaft arranged in the bearing base in a penetrating manner, wherein a front deep groove ball bearing and a rear deep groove ball bearing are arranged at two ends of an inner cavity of the bearing base, a thrust bearing is arranged between the front deep groove ball bearing and the rear deep groove ball bearing, the pre-plasticizing shaft is arranged in the front deep groove ball bearing, the rear deep groove ball bearing and the thrust bearing in a penetrating manner, a front bearing cover and a rear bearing cover are arranged at the two ends of the bearing base, a front sealing ring and a rear sealing ring are arranged at the connecting part of the pre-plasticizing shaft and the front bearing cover and the connecting part of the pre-plasticizing shaft and the rear bearing cover, and the front sealing ring and the rear sealing ring are respectively embedded in the front bearing cover and the rear bearing cover. The pre-plasticizing shaft supporting and connecting device is capable of ensuring that an injection molding machine realizes functions of pre-plasticizing and injecting, and enables the injection molding machine to have long-time, firm and stable performances.
Description
technical field [0001] The invention belongs to the technical field of injection molding, and relates to an injection molding machine, in particular to a premolded shaft support connection device. Background technique [0002] The plastic screw has a variety of movement modes at different stages of the working process, and needs to apply a variety of forces. In the pre-plastic stage, the screw rotates and retreats at a slow speed, and torque and backward pulling force need to be applied to the screw; in the injection stage, the screw does not rotate, but advances forward, and a huge forward thrust needs to be applied to the screw; In the first stage, the screw does not rotate, nor advances and retreats, but to keep applying pressure to the plastic melt, it is necessary to apply a huge forward thrust to the screw. Injection molding machines have strict requirements on the movement speed and force of the screw, among which the forward thrust value is huge. High-quality inject...
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IPC IPC(8): B29C45/17F16C35/08F16C33/72
CPCB29C45/1775F16C33/7806F16C35/12
Inventor 李凌丰陈豪张振然管灵波
Owner ZHEJIANG UNIV