136results about How to "No wrinkling" patented technology

The invention discloses a film sticking machine capable of automatically tearing off release paper. According to the film sticking machine, an absorbing device is used for adsorbing an adhesive film and feeding the adhesive film to a platform; the adhesive film is adsorbed and positioned on the platform through the suction hole on the platform; a pusher is used for upwards pushing and supporting a push piece and pushing and supporting an end corner of the release paper stuck above the adhesive film to tilt; and a clamping jaw of a clamping device is used for clamping the tilt part of the end corner to move along a track at a certain horizontal height and tearing off the release paper in a diagonal direction, thereby subsequent film sticking operation can be carried out. Therefore, one end corner of the release paper is lifted by a corner lifting device and a mode of tearing off the release paper by using the clamping jaw at a certain horizontal equal height is used, thereby the surface of the adhesive film is prevented from being touched and the condition that the adhesive film is crinkled is avoided.

The invention discloses a technological method for welding low-alloy high-strength steel, which comprises the following steps: a divided edge is formed, a welding area is polished and cleaned, and the strength of welding material is equivalent to that of steel to be welded; Ar+CO2 mixed gas protective welding is adopted, preheating is performed before welding, and the welding speed is 250-300mm/min; a 800MPa solid welding wire is adopted to perform multilayer multirun welding; the interlayer temperature is kept at 150 DEG C plus or minus 20 DEG C during the welding process, a preheating spray gun is used from time to time for temperature compensation, the welding line energy is 16-18KJ/cm, low temperature aging is performed to the whole after welding, and the temperature is 300-400 DEG C. The welding technological method prevents welding cracks from being generated, eliminates residual stress generated during welding large-sized structural members, and serves the purpose that the tensile strength of weld joins equals the tensile strength of parent metal.

The invention relates to ferritic stainless steel with good wrinkle resistance and a production method thereof. The ferritic stainless steel comprises the following components by weight percentage: less than or equal to 0.02 percent of C, less than or equal to 0.02 percent of N, 0.10-0.50 percent of Si, 0.10-0.50 percent of Mn, less than or equal to 0.03 percent of P, less than or equal to 0.01 percent of S, 16-30 percent of Cr, less than or equal to 1.00 percent of Ni, 0.15-0.40 percent of Nb, less than or equal to 16 percent of Nb/(C+N), less than or equal to 0.010 percent of O, less than or equal to 1.00 percent of Cu and the rest being Fe and inevitable impurity elements. Since the stabilization element Ti which can damage the surface quality of continuous casting and increase the brittle transition temperature is not added, and only the stabilization element Nb is added, the invention can reduce the quantity of casting blank repair and the strip breakage risk, improve the surface quality and overall performance, eliminate the wrinkle of the surface of the ferriticstainless steel cold-rolled plate with a medium and high Cr content, reduce the wear and repair loss during the production process, and decrease the production cost.

The invention relates to a vinyl acetate-acrylate copolymer emulsion, which is prepared by adopting OP-10, SDBS, SVS, water, acrylic acid and a seed emulsion as the bottom water system, taking VAc, BA and AA as the monomer, employing ammonium persulfate as the oxidant, and using sodium bisulfite as the reducing agent. Specifically, the seed emulsion in the bottom water system is prepared by using SDBS, OP-10, AA, sodium carbonate and water as the base solution, adopting VAc, BA and AA as the monomer, employing SDBS, OP-10, sodium carbonate and water as the pre-emulsification system, taking ammonium persulfate as the oxidant, and adopting sodium bisulfite as the reducing agent. The emulsion provided in the invention has a solid content of 40%-45%, viscosity (in terms of a 4-cup application amount) of 20S-26S, bonding peel strength (N/2.5cm) of 1.4-2.5, a surface tension force of 32-37 dyne, and a film contact angle of 25-29 degrees, thus being particularly suitable for application in dry paper-plastic or plastic-plastic composite adhesives. The preparation method of the vinyl acetate-acrylate copolymer emulsion has the characteristics of mild reaction conditions and safety reaction system, thus being conducive to factory mass production.

The invention relates to a structure for a body-side outer panel and a fender piece area of an automobile. The structure comprises the body-side outer panel and the fender piece area; a tail end of a body-side A pillar is closed; the structure is characterized in that a distance (H) between a body-side peak of a fender piece and a welding edge is in contrast with the distance (W) between a line of the fender piece and the tail end of the body-side A pillar; the distance (H) between the body-side peak of the fender piece and the welding edge is less than the distance (W) between the line of the fender piece and the tail end of the body-side A pillar; and transition (G), namely a profile of which is within an area between the line of the fender piece and the tail end of the body-side A pillar, is smooth. In the structure, the distance between the body-side peak of the fender piece and the welding edge and the distance between the line of the fender piece and the tail end of the body-side A pillar are controlled, so that the transition, namely the profile of which is within the area between the line of the fender piece and the tail end of the body-side A pillar, is smooth, thereby being capable avoiding the phenomena of folded materials and corrugation on the body-side welding edge.

The invention discloses a method for punching an arc-shaped surface or an inclined surface of a television rear shell, comprising the processes of punching, stretching, and the like and comprising the steps of first performing stretch forming on blank of the television rear shell; and then, punching the arc-shaped surface or the inclined surface of the television rear shell. The invention also discloses a punching die of the arc-shaped surface or the inclined surface of the television rear shell, comprising an upper die and a lower die. Punching heads which correspond to holes in the quantity and the positions of holes, which are required for punching on the arc-shaped surface or the inclined surface of the television rear shell, are installed on the upper die; and the lower die fixes the television rear shell and contains the punching heads which pass through the television rear shell. With the punching method for first stretching and then punching and the punching die, the wrinkling of the punched television rear shell can be eliminated, and the disadvantages of oval irregular shape stretched from round heat radiating holes, poor appearance and heat radiating effect, high defective rate, and the like can be overcome.

The invention provides an intelligent new textile material cutting device for spinning, belongs to the technical field of textile cutting devices, and aims to solve the problem that when a new textilematerial is cut by the cutting device, the middle of the new textile material is still wrinkled during cutting, so that the cutting quality of the cutting device during cutting is reduced. The cutting device comprises a base; a C-shaped support is fixedly connected to the middle of the upper end face of the base; and a lifting mechanism is arranged at the top of the inner side of the C-shaped support. Through the arrangement of pressing mechanisms, in the cutting process, when a circular cutting blade makes contact with the new textile material, and pressing belts on the two pressing mechanisms make close contact with the upper surface of the new textile material, so that a cutting area of the new textile material is effectively pressed; and when the circular cutting blade moves leftwardsand rightwards, the pressing belts can be driven on the peripheral surfaces of pressing rollers, so that the new textile material cannot be wrinkled during cutting, and the cutting quality of the cutting device during cutting is improved.

The invention discloses a soft laser self-adhesive label film and a preparation method thereof, successively comprising a polyolefin film layer, a polyurethane glue layer, an aluminium coated layer, an imaging layer, a peeling layer, a pressure-sensitive adhesive layer, and a PET silicone paper layer from top to bottom, wherein the longitudinal softness of the polyolefin film layer is 80-110mN, and the horizontal softness of the polyolefin film layer is 60-90 mN. The invention further provides a preparation method of the soft laser self-adhesive label film. Compared with the prior art, the soft laser self-adhesive label film disclosed herein has good softness and high following performance, and is suitable for flexible tubes or bottle bodies that can be extruded to deform.

The invention provides a titanium-based alloy material spinning forming method based on composite heating. The titanium-based alloy material spinning forming method comprises the steps that firstly, ablank, a central spindle and a spinning roller are preheated with a flame gun; and secondly, the blank is heated to the spinning temperature with a follow-up induction heating coil, the temperature is monitored with an infrared thermal imager in the spinning process, and heating and heat preserving are conducted on the blank in a spun area behind the spinning roller with the flame gun. Accordingto the titanium-based alloy material spinning forming method based on composite heating, two heating modes including front-end electromagnetic induction heat source heating and back-end flame source heat compensating are combined, the temperature is monitored with the infrared thermal imager, and then online heating and precise temperature controlling in the spinning forming process are achieved.Embodiment results show that when spinning forming is conducted on a titanium-based alloy through the method, an obtained spun part is uniform in wall thickness, has no cracking phenomenon, is high inquality and can not generate defects such as instability wrinkling in the spinning process.

The invention relates to a feeding template used for the automatic cutting of material and a control method thereof, wherein, a material transmission device that can reciprocate in the longitudinal direction is adopted to control the material to be forwards conveyed accurately to reach a feeding station, and the material can move backwards for a certain distance so as to be detached from being in contact with a cutting knife when being processed through fixed-length cutting, so that the phenomenon that the material wrinkles or deflects caused by the backward reposition of the cutting knife is hindered, and the material can be protected from being abraded. The feeding template mianly comprises a frame, wherein, a front end plate and the cutting knife used for cutting the material transversely are arranged at the front end of the frame. A longitudinal material transmission device is arranged on the rear side of the front end plate; the longitudinal material transmission device is provided with a material transmission plate, at least a group of cylinder components, a pressure plate and a driving cylinder; the material transmission plate can bear upwards and can convey the material in the longitudinal direction; the cylinder components are connected with the rear end of the material transmission plate and can drive the material transmission plate to reciprocate in the longitudinal direction; the pressure plate is arranged above the material transmission plate; and the driving cylinder can drive the pressure plate to swing in the vertical direction. The material can move backwards for a certain distance so as to be detached from being in tight contact with the inner side surface of the cutting knife after being processed through fixed-length cutting.

The invention discloses extruded composite smooth aluminum sleeve cable production equipment and a production method. The production equipment comprises an extruded aluminum sleeve device, a wheel type reducing device, a preheating device, a multi-layer co-extrusion device and a cooling water tank, and the extruded aluminum sleeve device continuously extrudes an aluminum sleeve; the cable coated with the aluminum sleeve passes through a shaft hole, and the aluminum sleeve is tightened to the outer diameter designed by the process by the wheel type reducing device, so that the whole aluminum sleeve is coated on the surface of the cable core; the preheating device is used for heating the aluminum sleeve; the multi-layer co-extrusion device is used for compounding the aluminum sleeve with thehot melt adhesive, a PE sheath, a PVC sheath and a conductive layer together and carrying out cooling molding through the cooling water tank. According to the hot melt adhesive extrusion technology designed by the invention, the hot melt adhesive not only achieves an anti-corrosion effect, but also achieves a bonding effect, so that the PE sheath, the PVC sheath, the conductive layer and the smooth aluminum sheath of the cable are firmly bonded together, and the phenomena of arching or wrinkling cannot be generated during bending, take-up and construction of the cable.

The invention discloses a hot melt adhesive coating device and coating method for composite smooth aluminum sheathed high-voltage cables. The coating device comprises an argon arc welding production line and a plastic extruding machine, wherein the argon arc welding production line comprises a welding gun part and a traction part; the coating device further comprises a first hot melt adhesive coating device and a second hot melt adhesive coating device; the first hot melt adhesive coating device is arranged between the welding gun part and the traction part; the first hot melt adhesive coatingdevice comprises a hot melt adhesive groove, an adhesive blocking die, a drawing die and an electric heating temperature control assembly; the hot melt adhesive groove is filled with hot melt adhesive particles; the hot melt adhesive particles are heated by the electric heating temperature control assembly to become liquid and completely immerse an aluminum sheath; the aluminum sheath enters thefirst hot melt adhesive coating device and is subjected to primary hot melt adhesive coating while being subjected to a drawing process; and the second hot melt adhesive coating device is arranged atthe front side of the inlet of the plastic extruding machine and is structurally similar to the first hot melt adhesive coating device. According to the hot melt adhesive coating device and coating method for the composite smooth aluminum sheathed high-voltage cables of the invention, secondary hot melt adhesive coating is performed in front of the plastic extruding machine, and therefore, the smooth aluminum sheath and an outer sheath are tightly integrated into a whole, and the phenomena of arching or wrinkling can be avoided during cable bending, take-up and construction.

The invention provides a mask and frame assembly of a mask tensioning machine for a deposition process. The mask and frame assembly comprises a frame and a mask, bumps are arranged on the peripheral edge of the frame, and the mask is assembled on the frame and is jacked by the bumps of the frame. The mask and frame assembly has the advantages that the mask is jacked by the bumps of the frame, the surface of the mask is flatly pressed by a roller so as to be easily flattened, accordingly, crinkling of the mask is prevented, and a shadow effect caused by crinkling of the mask is avoided.

PURPOSE: To allow a worker to easily, efficiently and stably sew uniform and beautiful pin-tucks regardless of its skill by improving the stability stitch balancing thread tension, the feeding stability of a sewing matter (cloth), and the visual confirmability of seams in sewing in the formation of pin-tucks by use of a zigzag lock stitch sewing machine. CONSTITUTION: A throat plate 11a comprises a hole 12a located between the lateral needle locating positions 20a and 20b of one needle and extended long in the feeding direction S of a sewing matter 13. A guide plate 10 for freely inserted to the hole 12a from the upper surface side of the throat plate 11a is formed on the lower surface of a presser 8. A feed dog 14a has a U-shaped sectional U-groove 15a in a position opposed to the hole 12a to work a feeding force to a pin-tuck part.

The invention discloses a preparation method of an anti-wrinkle and anti-cracking bamboo floor. Take bamboo slices with a width of 18-25 mm, layer the surface bamboo green and bamboo yellow through a green cutting machine, and plan the bamboo yellow to obtain a thickness of 3. ~6mm bamboo slices, the obtained bamboo slices are dissected again, cut into bamboo strips with a width of 4~6mm, the bamboo strips are degreased and desugared by high temperature and high pressure, and finally the bamboo strips are dried to a moisture content of less than 10% for soaking Glue, soaked bamboo strips are dried again, after curing, the dried bamboo strips are pressed and formed by cold presses and molds, and then cured at high temperature and sliced ​​to obtain slabs that can be used to produce finished flooring. The invention controls the thickness of the bamboo strips by cutting the bamboo slices into strips, can ensure uniform glue application during the glue application process, and at the same time greatly reduces the amount of glue used, shortens the drying time after glue, and reduces the energy consumption. Consumption, the finished board has higher strength, lower moisture absorption expansion rate, no wrinkling, cracking, wire jumping, etc., and the bamboo strips in the entire bamboo floor will not break the silk road.

The invention discloses plant asphalt emulsion and a water emulsion modified plant asphalt waterproof coating using the plant asphalt emulsion. The plant asphalt emulsion is prepared from plant asphalt, deionized water, styrene cis-butadiene diacid, a stabilizer, an initiator, an emulsifier A, a defoamer A and a thickener. The water emulsion modified plant asphalt waterproof coating using the plant asphalt emulsion comprises the following various raw materials: the plant asphalt emulsion, elastic emulsion, talcum powder, deionized water, light calcium carbonate, hydroxy propyl cellulose, short fibers, a dispersing agent, a defoamer B, a water repellent, a preservative, a surfactant and an emulsifier B. An environment of a technological process is clean, water serves as a carrier diluent, and therefore, the plant asphalt emulsion and the water emulsion modified plant asphalt waterproof coating are nontoxic, harmless, environmentally friendly, pollution-free, corrosion-free and combustion-free, and belong to aqueous system non-dangerous products. The products are convenient to construct, excellent in film-forming property and suitable for waterproofing of a roof and underground impermeability.

The invention discloses a packing tape compaction device which comprises a rack, a first cross beam, a guiding mechanism and a compaction mechanism, wherein the rack is mounted on a conveyor line which is used for conveying a packaging box; the first cross beam is mounted on the rack, a hairbrush is arranged on the first cross beam, and a brush head end of the hairbrush leans against the packing tape on the packaging box to brush the packing tape flat; the guiding mechanism forms a guiding channel where the packaging box passes through, and the brush head end of the hairbrush stretches into the guiding channel; and the compaction mechanism comprises a compaction roller and a lifting driving assembly, the hairbrush and the compaction roller are arranged in a spaced manner along a first direction, the first direction is consistent to the conveying direction of the packaging box, and the lifting driving assembly is used for driving the compaction roller to descend to lean against the packing tape so as to compact the packing tape to the packaging box or is used for driving the compaction roller to ascend to be separated from the packing tape. According to the packing tape compaction device, the packing tape on the packaging box is brushed flat and compacted successively without being wrinkled, and seals the packaging box tightly, and the packaging box which is stacked is unlikelyto fall off, so that the safety is high.

The invention belongs to the technical field of PCBs and discloses a manufacturing method of a heat conduction PCB and a PCB. The manufacturing method comprises the following steps that: a mother board is manufactured, and then a heat conductor accommodating groove is formed in the mother board; a micro-viscous film is adhered to the mother board; a heat conductor is placed in the heat conductor accommodating groove and bonded to the micro-viscous film, and the heat conductor is fixedly connected with the mother board through resin, wherein the heat conductor comprises a ceramic layer and a conductive layer; the micro-viscous film is removed, and then the whole board is electroplated; and an outer-layer pattern is manufactured on the surface of the heat conductor and/or other board surfaces. According to the manufacturing method, the heat conductor accommodating groove is manufactured after a pressing process, so that windowing treatment on outer-layer copper foil is not needed beforepressing, and therefore, the good flatness of the outer-layer copper foil can be kept in the pressing process, and the wrinkling phenomenon of the outer-layer copper foil is avoided; the micro-viscousfilm can be used for pre-fixing the heat conductor and also can be used for preventing a large amount of redundant resin from being left on board surfaces; a copper-clad ceramic sheet is used as theheat conductor; a pattern can be also made on the conductive layer on the surface of the heat conductor; and therefore, the overall wiring density of the PCB is improved.

The invention belongs to the technical field of storage bag preparation, and particularly relates to a thin film tension floating adjusting device for storage bag preparation. The device comprises a set of rollers, a floating bracket and a swing guide rod mechanism, wherein, the set of rollers comprises a plurality of fixed rollers and floating rollers which are arranged up and down at equal intervals; the floating bracket is used for mounting and fixing the floating rollers; the swing guide rod mechanism comprises a rotating shaft connected with an output shaft of the driving motor, a rotating rod, a transmission rod, a swing rod, a movable mounting seat, an arc guide rail and an arc sliding block, and one end of the rotating rod is fixedly connected with the rotating shaft. According to the device, by means of the quick-return characteristic of the swing guide rod mechanism, the floating rollers are driven to do downward slow release motion when a thin film machining section is static, the time interval requirements for constant-speed unwinding, thin film tapping, valve welding and the like of an unwinding device are met, and when a thin film is in a stepping state, the floating rollers are driven to do upward quick-return motion meeting the thin film stepping speed, the constant-speed stepping traction requirement that the initial speed of the thin film is zero and is higher than the unwinding speed is met, and it is guaranteed that damage, wrinkling and tensile deformation cannot be generated during stepping traction of the thin film.

The present invention provides an automatic pasting and covering machine for pasting and covering adhesive tapes on a curved panel. The automatic pasting and covering machine comprises a machine framein a frame structure, a rotary plate rotatably arranged relative to the machine frame by a vertical rotation shaft, and a driving motor driving the rotary plate to rotate; a positioning mechanism forpositioning the rotary plate in a plurality of work stations is arranged between the rotary plate and machine frame; the rotary plate is provided with a plurality of workpiece stations; each workpiece station comprises support frames on both sides fixedly connected with the rotary plate, and a rotary frame rotatably arranged between the support frames on the both sides; a rotary motor for drivingthe rotary frame to rotate is arranged on the support frame on one side, and a locking mechanism for locking the rotary frame is arranged between the support frame on the other side and the rotary frame; a workpiece fixing structure used for fixing workpieces is arranged on the rotary frame; and the machine frame is successively provided with a tape pasting work station and a plurality of tape pressing work stations, wherein the outer side of one of the tape pressing stations is provided with an automatic material unloading mechanism. The automatic pasting and covering machine uses a conceptof curve modules to realize the tape pasting and covering of the curved surfaces of the workpieces, and is simple in structure and high in degree of automation.

The invention relates to an adjustable article isolation refrigerated transport carriage. The adjustable article isolation refrigerated transport carriage comprises a carriage body, temporary placingdevices, winding devices and clamping devices, wherein the winding devices are uniformly mounted between the inner walls of the left end and the right end of the carriage body from top to bottom; thetemporary placing devices are uniformly mounted on the inner walls of the left end and the right end of the carriage body; and the clamping devices are symmetrically mounted on the inner walls of theleft end and the right end of the front end of the carriage body. According to the adjustable article isolation refrigerated transport carriage, the following problems existing during existing refrigerated article transportation and isolation can be solved, firstly, partition plates are usually adopted for the refrigerated article transportation, after the partition plates are used for isolating refrigerated articles, the same refrigerated articles need to be manually stacked together, after the partition plates are placed on the refrigerated articles, different refrigerated articles are stacked on the partition plates, so that the labor intensity of workers is increased; and secondly, the refrigerated articles are various in transported goods, so that different types of refrigerated articles need to be assembled and transported by adopting different transport carriages, and if all the refrigerated articles are transported by using a single vehicle, the transportation cost is greatly increased.