30results about How to "Will not cause uneven force" patented technology

The invention discloses a material conveying and pushing method for a prefabricated bag packaging machine and relates to the technical field of packaging machine packaging processes. The material conveying and pushing method includes the steps that materials are conveyed to a to-be-clamped station; the materials conveyed to the to-be-clamped station are conveyed to a to-be-pushed station in a clamped manner; in the process of conveying the materials to the to-be-clamped station or the to-be-pushed station, prefabricated bags are conveyed to a bag opening station and opened on the bag opening station; the prefabricated bags are opened while the materials on the to-be-clamped station are conveyed to the to-be-pushed station in the clamped manner; in the material pushing process, the prefabricated bags and the materials move in the opposite directions; and the materials are pushed into the prefabricated bags moving in the direction opposite to the material pushing direction, and the prefabricated bags containing the materials in a wrapping manner are pushed to the assigned positions in the original material pushing direction. The material conveying and pushing method for the prefabricated bag packaging machine can solve the problems that by means of a prefabricated bag packaging machine in the prior art, the working procedures of a single station are complex, the number of the packaging actions is large, the stroke among different stations is long, the area occupied by equipment is large, material dumping occurs easily and the prefabricated bags are broken easily due to the fact that materials are irregular, the material pushing stroke is long, the packaging effect is poor, and the packaging efficiency is low.

The invention discloses a material packaging method for a prefabricated bag packaging machine, and belongs to the technical field of material packaging. The material packaging method comprises the following steps: material clamping or holding, prefabricated bag expanding, material pushing and prefabricated bag removing, wherein in the material clamping or holding process, a material is clamped or held under the action of a clamping mechanism or a holding mechanism, and conveyed to a to-be-pushed station; in the prefabricated bag expanding process; the left and right sides of the bag mouth of the prefabricated bag are expanded under the action of a bag expanding mechanism; in the material pushing process, the material moves under the action of a material pushing mechanism in the direction of the bag mouth of the prefabricated bag to the bottom of the prefabricated bag, and continues being pushed along with the prefabricated bag; and in the prefabricated bag removing process, after moving to the bottom of the prefabricated bag, the material continues being pushed by the material pushing mechanism, and then is removed from the bag expanding mechanism. By adoption of the material packaging method, the material can be pushed by a material pushing head into the prefabricated bag continuously, and the continuous degree of material conveying and pushing is high. Compared with a conventional packaging method, the material packaging method provided by the invention has the advantages that the conveying and packaging stroke is shorter, and the packaging efficiency is higher.

The invention discloses a prefabricated bag packaging machine, and relates to the technical field of packaging machinery. The prefabricated bag packaging machine adopts the structure that a clamping and conveying device is arranged between a to-be-clamped station and a bag opening station; the clamping and conveying device comprises a clamping mechanism and a translation mechanism; and the translation mechanism drives the clamping mechanism to perform reciprocating motion in the material clamping and conveying direction. The prefabricated bag packaging machine provided by the invention solves a plurality of problems in the prior art, for example, the working procedure at a single station of a conventional prefabricated bag packaging machine is complex; the quantity of packaging actions is large; the strokes among various stations are relatively long; the equipment occupied area is large; materials are irregular, and the possibility of material overturning is high; a prefabricated bag is liable to broken; the material pushing stroke is long; the packaging effect is poor; and the packaging efficiency is low.

The invention relates to the field of English learning tools, particularly relates to an auxiliary device for English listening training. The auxiliary device comprises an adjusting frame and two earmuffs, a first rack and a second rack which are arranged in parallel are slidably connected into the adjusting frame. The ends, located on the outer side of the adjusting frame, of the first rack and the second rack are fixedly connected with arc-shaped frames respectively, telescopic mechanisms are arranged at the lower ends of the two arc-shaped frames, the two earmuffs correspond to the telescopic mechanisms, adjusting boxes are fixed to the upper ends of the earmuffs, and the lower ends of the telescopic mechanisms are arranged in the corresponding adjusting boxes. The auxiliary device forEnglish listening training is suitable for people with different head circumference sizes; when the two earmuffs move, the shapes of the earmuffs are kept unchanged; the adjustable earmuff is simple and convenient to operate, the angle between the earmuff body and the plane where the ears are located is adjusted through the adjusting box, the earmuff body can be parallel to the plane where the ears are located, the earmuff body can be tightly attached to the ears, external noise transmission is reduced, and the hearing training level can be improved.

The embodiment of the invention discloses a chip structure and a packaging method thereof, and electronic equipment. the chip comprises a wafer (DIE) and a circuit substrate, wherein the circuit substrate comprises a first bonding pad (VSS), a second bonding pad (VDDS) and a third bonding pad (VDDM); the wafer (DIE) is arranged on the first bonding pad (VSS), the mapping plane of the wafer (DIE) on the first bonding pad (VSS) is within the frame of the first bonding pad (VSS). Compared with the prior art, in the embodiment of the invention, the wafer (DIE) is arranged on the first bonding pad(VSS), the mapping plane of the wafer (DIE) on the first bonding pad (VSS) is within the frame of the first bonding pad (VSS), the wafer (DIE) does not stretch across two or more pads, the wafer (DIE)is prevented from being subjected to non-uniform stress during a packaging process, and thus loss caused by cracking of the chip is avoided, and the production yield of the chip is ensured.

The invention discloses a prefabricated bag packaging method for a prefabricated bag packaging machine and relates to the technical field of packaging machine packaging processes. The prefabricated bag packaging method includes the steps that prefabricated bags are conveyed to a bag opening station, opened on the bag opening station and arranged on a bag expanding mechanism of the prefabricated bag packaging machine in a sleeving manner; the prefabricated bags move in the direction opposite to the material movement direction along with the bag expanding mechanism of the prefabricated bag packaging machine; and in the process of opposite movement of the prefabricated bags and the materials, under the action of a material pushing mechanism of the prefabricated bag packaging machine, the materials pushed by the material pushing mechanism are contained in the prefabricated bags in a wrapping manner, and the prefabricated bags containing the materials in the wrapping manner are pushed out under the action of the material pushing mechanism. The prefabricated bag packaging method for the prefabricated bag packaging machine can solve the problems that by means of a prefabricated bag packaging machine in the prior art, the working procedures of a single station are complex, the number of the packaging actions is large, the stroke among different stations is long, the area occupied by equipment is large, material dumping occurs easily and the prefabricated bags are broken easily due to the fact that materials are irregular, the material pushing stroke is long, the packaging effect is poor, and the packaging efficiency is low.

The invention discloses a material holding type conveying method for a preformed-bag packer and belongs to the technical field of material packing. The material holding type conveying method is characterized by including the steps of firstly, conveying materials into a holding mechanism; secondly, conveying the materials by a holding way to a to-be-pushed work station and opening preformed bags by a bag opening mechanism; thirdly, pushing the materials by a pushing mechanism while driving the preformed bags to move opposite the materials by the bag opening mechanism. The material holding type conveying method is adaptable to both regular materials in bulk and irregular materials in bulk; the material holding type conveying way is stabler than the material clamping type conveying way and squeezing of the materials is avoided; thus, material conveying efficiency is improved, and efficiency of preformed bag packing is improved.

The invention discloses a lead frame with an inclined bending portion. The lead frame is formed through connection of thirty lead frame units in a single row. The lead frame units are fixedly connected with one another through connecting pieces. Each lead frame unit comprises a positioning hole (3), a cooling fin (4), a substrate (5) and a lead pin, the positioning holes are formed in the connecting piece (2-3), the cooling fins (4) are arranged on the connecting piece, each lead pin comprises a middle lead pin body (6) and a side lead pin body (7), each middle lead pin body (6) is provided with a bonding portion (8), each bonding portion (8) is provided with an inclined section (9), the middle lead pin bodies (6) and the substrates (5) are fixedly connected through the bonding portions (8), the bonding portions (8) are bent, and the middle lead pin bodies (6) and the side lead pin bodies (7) are fixedly connected through the connecting piece (2-2). According to the lead frame, defective products are not prone to being produced in the production process, and product quality meets standards.

A vertical double-hanging clamp is characterized by comprising two symmetrically arranged cross arm angle steel clamping apparatuses (2), two sets of lead screws (1) connected with the cross arm angle steel clamping apparatuses (2) respectively, and a balancing pull rod (3) located in the middle of the two cross arm angle steel clamping apparatuses (2) and connected with the two cross arm angle steel clamping apparatuses (2). The beneficial effects of the invention are that: the vertical double-hanging clamp enables the whole work to be operated conveniently, effectively balances the tensile forces generated by tightening the lead screws to thereby not enable the tower materials to deform, enables the personal injury risk during the tightening process to be reduced effectively, does not need the help of other tools when being installed, can be installed rapidly during the installation process, and enables the working risk to be reduced.