Rotation compensation unit for rotary die
A technology of rotating device and rotating mold, which is applied in the field of rotating molds, can solve the problems of bearing replacement, small bearing capacity, and structural design that cannot meet actual requirements, and achieve the effect of meeting speed requirements and improving service life
Inactive Publication Date: 2012-03-28
HUAIAN JINXIN TRANSMISSION MACHINERY
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Problems solved by technology
According to this requirement, the limit speed can meet the speed requirement only if the bearing with a smaller specification is selected in the design, but the bearing capacity is too small for the bearing capacity, and the structural design cannot meet the actual requirements. Therefore, the rotating die currently used, large Most of them can only choose bearings with smaller specifications as far as possible under the premise of ensuring the bearing capacity. In this way, the actual life of the bearings is limited. In addition, the bearings are not properly lubricated, and the bearings will be replaced frequently.
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[0008] Such as figure 1 As shown, the compensating rotation device includes a hollow shaft 7, an intermediate shaft 6, a housing 5, bearings and a pulley 1, and the intermediate shaft 6 is installed outside the hollow shaft 7 through the No. 1 bearing 3, and is installed outside the intermediate shaft 6 through the No. 2 bearing 4. The housing 5 is equipped with a No. 1 cover 2 and a No. 2 cover 8 on both sides of the hollow shaft 7 and the intermediate shaft 6 respectively, and a belt pulley 1 is installed at one end of the hollow shaft 7 .
[0009] When in use, put the rotary mold in the hollow shaft 7 and fix it by the gland 9, insert the steel wire into the mold, and pull the steel wire. Since there are 3-6 helical wires in the mold, the mold and the hollow shaft will follow the steel wire together. According to normal production requirements, the running speed of the steel wire can reach 150-200 m / min, and the speed of the hollow shaft can reach 4500-5500 r / min; at the sa...
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The invention discloses a rotation compensation unit for a rotary die, comprising a hollow shaft (7), an intermediate shaft (6), a housing (1), bearings and a belt pulley (1), wherein, the intermediate shaft (6) is arranged on the hollow shaft (7) through a No.1 bearing (3), the housing (5) is arranged on the intermediate shaft (6) through a No.2 bearing (4), a No.1 cover (2) and a No.2 cover (8) are respectively arranged on the two sides of the hollow shaft (7) and the intermediate shaft (6), and the belt pulley (1) is arranged on the one end of the hollow shaft (7). According to the invention, a design idea of two-speed summation is used; by forcing to co-rotate through the rotation compensation unit, the rotation with an absolute high speed is converted into the rotation with two relative low speeds to divide the actual speed into a summation of two speeds, thus the required working speed is achieved, the requirement of rotating speed of bearings is satisfied, and the service life is prolonged.
Description
technical field [0001] The invention relates to a rotary mold, in particular to a compensation rotation device for the rotary mold. Background technique [0002] As we all know, spiral rib steel wire has been popularized and applied in my country for nearly 20 years. During the production process, the bearings of the passive spiral mold box are easily damaged. The general service life is about one week, and some are even shorter. Therefore, to improve production efficiency, it is necessary to Solve the structural design and practical use problems of the rotary die. In terms of meeting the requirements of use, the rotary mold must not only rotate passively and freely at a speed of 4500-5500 rpm, but also bear a certain axial force. According to this requirement, the limit speed can meet the speed requirement only if the bearing with a smaller specification is selected in the design, but the bearing capacity is too small for the bearing capacity, and the structural design cann...
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IPC IPC(8): B21C3/12
Inventor 董宝山蔡斌
Owner HUAIAN JINXIN TRANSMISSION MACHINERY