Punching needle roller
A technology of perforating needles and needle rollers, which is applied in metal processing and other directions, can solve the problems of difficult assembly of perforating needle rollers, and achieve the effects of quick and convenient assembly, saving materials and assembly costs, and protecting personal safety
Pending Publication Date: 2018-01-19
LIPENG PACKING YANTAI CITY
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Problems solved by technology
[0004] The invention provides a perforating needle roller, which solves the disadvantage of difficult assembly of the perforating needle roller in the background technology
Method used
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[0012] In order to better understand and implement, the following is combined with the attached Figure 1-2 The present invention is further described: a punching needle roller, including a shaft 1, a mandrel barrel 2 and a needle roller 3, the shaft 1 is installed in the mandrel barrel 2 through a bearing 9, and the mandrel barrel 2 is located in the needle roller 3 , the mandrel barrel 2 and the needle roller 3 are in clearance fit, the fit gap is 0.05-0.1mm, the two ends of the mandrel barrel 2 are provided with 30︒ inclined-plane steps 8, and the two ends of the needle roller 3 are equipped with O-rings 7 And the inclined pad 5, and then the gland 4 is installed with the screw 6.
[0013] Firstly, the two ends of the mandrel barrel 2 are processed with 30° inclined-plane steps 8, and the original interference fit between the mandrel barrel 2 and the needle roller 3 is changed to a clearance fit. The fit clearance is 0.07mm, and the shaft 1 and the bearing 9 Installed in a...
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The invention provides a punching needle roller comprising a shaft, a core shaft cylinder and a needle roller cylinder. The shaft is mounted in the core shaft cylinder through a bearing, the core shaft cylinder is located in the needle roller cylinder, and the core shaft cylinder and the needle roller cylinder are in clearance fit with each other, wherein the fit gap is 0.05-0.1 mm. The two ends of the core shaft cylinder are provided with oblique plane steps, the two ends of the needle roller cylinder are each provided with an O-shaped ring and an oblique cushion, and then a pressing cap is mounted through screws. Preferably, the oblique plane angle of the oblique plane steps is 30 degrees. The two ends of the core shaft cylinder are arranged to be 30 degrees of the oblique plane steps, interference fit between the core shaft cylinder and the needle roller cylinder is changed into clearance fit, and through tensioning force of the O-shaped rings at the two ends, the core shaft cylinder and the needle roller cylinder are tightly combined together. Owing to the fact that the O-shaped rings belong to soft objects, the needle roller cylinder cannot deform when the O-shaped rings are tensioned on the needle roller cylinder, assembly is rapid and convenient, personnel safety of an operator is protected, the work efficiency is improved, and materials and assembly cost are saved.
Description
technical field [0001] The invention belongs to the technical field of cap making equipment, and in particular relates to a punching needle roller. Background technique [0002] The perforating needle roller is used after assembling the cylinder with needles and the mandrel roller. The wall thickness of the needle roller is relatively thin, generally about 5mm, and cannot be connected by a key. Usually, the needle roller and the mandrel Use interference fit to assemble together. Since the needle roller is full of sharp needles, which are very sharp, it is very easy to touch the needles and injure the hands of the operator during the assembly process. [0003] The wall of the needle roller is very thin, so it cannot be hammered and installed on the mandrel. If the needle is heated by flame, the annealing method will cause the needle to be unusable and must be scrapped. Usually the assembly is to put the needle roller into the oil and assemble it by warm method. Due to the ...
Claims
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Login to View More IPC IPC(8): B26F1/24B26D7/26
Inventor 孙承行郝旭波张文杰仉明亮
Owner LIPENG PACKING YANTAI CITY