A driving mechanism of a motorized formwork for two-platen injection molding
A technology of driving mechanism and moving platen, which is applied in the field of injection molding machines, can solve problems such as shearing, drive failure, lead screw and lead screw nut cannot be lubricated, etc., and achieve the effect of not easy to loosen, improve service life, and rotate smoothly and flexibly
Active Publication Date: 2017-04-12
NINGBO SHUANGMA MASCH IND CO LTD
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Problems solved by technology
[0002] At present, the movable platen in the injection molding machine is usually driven by hydraulic pressure + linkage mechanism, but this driving method is not sensitive enough, has a high failure rate, and pollutes the working environment. Therefore, motor + screw drive is also used instead of hydraulic drive.
However, the current motor + lead screw drive method usually uses screws to directly connect the lead screw nut to the motor shaft, which makes the screws easy to loosen or even cut due to direct shear when the motor is working, resulting in drive failure. , in addition, there is no lubrication between the screw and the screw nut
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[0010] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.
[0011] As shown in the figure, a driving mechanism of a two-plate injection motorized mold plate includes a fixed mold plate 1, a movable mold plate 2, a motor 3, a screw 4 and a screw nut 5. The motor 3 is fixedly installed on the movable mold plate 2, and the fixed mold plate 1 A screw connection seat 11 is fixed on the upper part, one end of the screw 4 is fixedly connected to the screw connection seat 11, the screw nut 5 is screwed with the screw 4, and the screw nut 5 is connected to the screw through a plurality of evenly distributed positioning pins 6 The rotating shaft 31 of the motor 3 is positioned and connected, and the screw nut 5 is respectively sleeved with a thrust bearing 51 and a compression sleeve 7. The compression sleeve 7 and the screw nut 5 are sealed and connected by a sealing ring, and the compression sleeve 7 and the motor 3 The ho...
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The present invention discloses a double plate injection molding machine movable template driving mechanism, which comprises a fixed template, a movable template, a motor, a lead screw and a lead screw nut, wherein the motor is fixedly arranged on the movable template, one end of the lead screw is fixedly connected with the fixed template, and the lead screw nut and the lead screw form a screw connection. The double plate injection molding machine movable template driving mechanism is characterized in that the lead screw nut and the rotation shaft of the motor form a positioned connection through a positioning pin, a pushing force bearing and a pressing sleeve are respectively sleeved on the lead screw nut, the pressing sleeve and the lead screw nut are sealedly connected and the pressing sleeve and the housing of the motor are fixed so as to press the lead screw nut to make the lead screw nut and the rotation shaft of the motor be fixed, and the pressing sleeve and the lead screw nut are respectively provided with radial lubrication holes. The double plate injection molding machine movable template driving mechanism of the present invention has the following advantages that: with the fixed connection between the lead screw nut and the rotation shaft of the motor, the connection safety and reliability is ensured, and the loose is not easily generated;; and the pressing sleeve and the lead screw nut are respectively provided with the radial lubrication holes, such that the lubricating oil can be injected between the lead screw and the lead screw nut so as to make the lead screw nut smoothly and flexibly rotate and increase the service life.
Description
Technical field [0001] The invention relates to an injection molding machine, in particular to a driving mechanism of a two-plate injection motor template. Background technique [0002] At present, the movable platen in the injection molding machine is usually driven by a hydraulic + linkage mechanism, but this driving method is not sensitive enough, and has a high failure rate, which pollutes the working environment. Therefore, a motor + screw drive is also used to replace the hydraulic drive. . However, the current motor + screw drive method usually uses screws to directly connect the screw nut to the motor shaft, which makes the screws easy to loose or even cut due to direct shear when the motor is working, resulting in drive failure , In addition, there is no lubrication between the screw and the screw nut. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a drive mechanism of a two-plate injection motorized template ...
Claims
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IPC IPC(8): B29C45/66
CPCB29C45/66
Inventor 邓俊钧丁凡吴歆陈炽辉王海燕
Owner NINGBO SHUANGMA MASCH IND CO LTD