67results about How to "Avoid breakage etc." patented technology

The invention discloses a buffering device for producing optical cables. The buffering device comprises a machine frame, sliding blocks, a first guide roller, a second guide roller, first magnetic force blocks and second magnetic force blocks, wherein the machine frame is provided with sliding rails; each sliding block is movably matched with the corresponding sliding rail; the first guide roller is rotatably mounted on the machine frame; the second guide roller is rotatably mounted on the sliding blocks; the first magnetic force blocks are mounted on the machine frame; the second magnetic force blocks are mounted on the second guide roller or the sliding blocks; each first magnetic force block is mutually matched with the corresponding second magnetic force block; and through magnetic force, the second guide roller has movement tendency of being away from the first guide roller. According to the buffering device disclosed by the invention, each sliding block is movably matched with the corresponding sliding rail, and the second guide roller is rotatably mounted on the sliding blocks, so that when the tension of a metal belt is changed, the second guide roller can move, the distance between each first magnetic force block and the corresponding second magnetic force block can also be changed, the magnetic force is changed until the magnetic force and the tension are rebalanced, in the process, the stress of the metal belt is slowly changed, and the occurrence of situations of cracking and the like caused by too large instantaneous stress in the prior art can be effectively avoided.

The invention relates to a chip back side drape tin eutectic technology and a loading method thereof. The method comprises the following steps: step (1), carrying out backside silver or backside gold processing on a chip back side; step (2), carrying out tinning or tin alloy work on a backside silver surface or a backside gold surface of a chip which is subjected to the backside silver or backside gold processing in the step (1); step (3), cutting the chip whose backside silver surface or backside gold surface is subjected to the tinning or tin alloy work in the step (2); step (4), employing eutectic technology to install the chip which is cut in the step (3) to a basic island to complete loading. According to the chip back side drape tin eutectic technology and the loading method, there is no requirement to chip dimension, after the chip back side is coated with a layer of tin or tin alloy, since the thickness of the tin or tin alloy can be controlled, the thickness of the tin or tin alloy can effectively absorb different stresses between the chip and the basic island, and lamination and rupture problems of a traditional eutectic chip are solved.

The invention relates to the technical field of film covering processes, in particular to an integrated protective film and an integrated film covering process. The integrated protective film comprises a first covering film body, a second covering film body, a first protective film body and a second protective film body. The first protective film body and the second protective film body are clamped between the first covering film body and the second covering film body and are arranged in a spaced mode. A front-surface integrated film and a back-surface integrated film are included in the integrated film covering process, and the back-surface integrated film is the integrated protective film. The integrated film covering process comprises the steps that the first covering film body of the back-surface integrated film is taken down; the first protective film body and the second protective film body are pasted on the back surface of a to-be-pasted object; a first front-surface covering film body of the front-surface integrated film is taken down, the to-be-pasted object is overturned, and a front-surface protective film body is pasted on the front surface of the to-be-pasted object; and the second covering film body and a second front-surface covering film body are taken down. According to the integrated protective film and the integrated film covering process which are provided by the invention, the technical problems that protective films pasted on touch panels and other products are high in defect rate and human cost in the prior art are solved.

The invention relates to an all-ceramic self-locking bracket and an opening method and locking method thereof and belongs to an orthodontic component. The traditional orthodontic brackets are mostly metal brackets. The metal brackets do not have the invisible effect in use, are not beautiful enough and have insufficient biocompatibility. The color of the ceramic bracket is close to that of the teeth so that it is not easy to notice when used, and the ceramic bracket has good biocompatibility. The ceramic material has low strength, large brittleness and fracture easiness relative to the metal bracket. The all-ceramic self-locking bracket comprises a bracket body, a sliding block and a positioning pin. The positioning pin is disposed on the bracket body. The positioning pin is located in thesliding groove of the sliding block. The sliding block slides so that the bracket is opened and locked. The all-ceramic self-locking bracket is prepared from a tough ceramic material, has a color ofmilky white similar to the human teeth color, and has an invisible function. The locking and opening switching of the bracket body is convenient and smooth. The slip sheet is not easy to break.

The invention relates to an agricultural machine, in particular to a seeder, comprising a frame, a seed box mounted on the top of the frame, a seed carrying assemble mounted under the seed box and a seed distributing assemble mounted at the front end of the frame, wherein a displacement assemble is mounted at the bottom end of the frame, an open for placing the seed is arranged on the seed box, a punching assemble is mounted at the lower end of the frame and connected with a motion assemble, a positioner capable of locking the moving distance of the displacement assemble is mounted at the displacement assemble. In the invetnion, the seed distributing shaft, the seed pushing rod and the seed carrying shaft are imbined, so that the amount of the seeds falling into each cavity can be precisely controlled by the drawing of the seed pushing rod in the sowing process, the seed distributing amount is precise and less.

The invention relates to the technical field of fibers, in particular to a multi-stage drafting device for polyphenylene sulfide fibers. Its technical scheme: a multi-stage drafting device for polyphenylene sulfide fiber, comprising several sets of drafting mechanisms, a drafting hot plate is arranged between adjacent drafting mechanisms, and the drafting mechanism includes a mounting frame, and the mounting frame is rotatably connected There are a first drafting wheel and a second drafting wheel, a rotating driving mechanism is installed on the mounting frame, and the output shaft of the rotating driving mechanism is connected with the rotating shaft of the first drafting wheel; the mounting frame of one of the drafting mechanisms is also installed with The output shaft of the reciprocating driving mechanism is connected with a cam mechanism, and the other end of the cam mechanism is hinged with the rotating shaft of the second drafting wheel. The invention provides a polyphenylene sulfide fiber multi-stage drafting device that can keep the shape of the fiber bundle in the drafting process, and solves the problem that the fiber bundle is extruded into a flat shape or is crushed during the drafting process .

The invention relates to a large-scale steel bending equipment and a bending process, comprising a bottom frame, a guiding mechanism, a bending mechanism and a shaping mechanism. The present invention can solve the following problems in the steel processing process: a. During the bending process of most steel materials, the steel materials are moved and the processing equipment is fixed. For large steel products, the existing equipment is used for processing The required site is large, and the realization process is relatively difficult. b. Most steel materials adopt a one-time forming method during the bending process. The stress generated during the bending process is relatively large, and it is easy to break just now. Insufficient treatment leads to uneven distribution of materials near the bending point, which affects subsequent use.