90results about How to "Wrinkle free" patented technology

The invention relates to the technical field of current transformers, in particular to a winding device for a primary coil of a current transformer and a winding method thereof.The winding device comprises a base and a vertical seat, the vertical seat is vertically mounted on the base, a ring seat is rotatably mounted on the vertical seat, and a mounting ring is arranged on the outer side of the ring seat; a rectangular seat is mounted on the outer side of the mounting ring through a bolt, a gear ring is mounted on the inner side of the ring seat, notches are formed in the ring seat, the mounting ring, the rectangular seat and the gear ring, and a rotating plate is rotationally mounted in the notch of the rectangular seat; in the winding process, a first pneumatic cylinder works to achieve movement of a right-angle seat, the horizontal section of the right-angle seat makes contact with the silk wrapping belt on the top side of the rectangular seat, the vertical section of the right-angle seat makes contact with the silk wrapping belt on the side wall of the rectangular seat, the silk wrapping belt on the top side of the rectangular seat is flattened through a horizontally-moving wheel seat and a horizontally-moving pressing wheel, and automatic flattening is achieved; and each layer of silk wrapping tape is ensured to be tightly attached and free of wrinkles.

The cutting device comprises a machining platform, two limiting baffles, a flat pressing assembly, a driven assembly, a cutting assembly and a material pressing assembly, the two limiting baffles are arranged on the top wall of the machining platform respectively, the flat pressing assembly is rotationally arranged on the machining platform, and the driven assembly is arranged on the top wall of the machining platform. The flat pressing assembly comprises a rotating shaft rod, an outer baffle, a movable support and a flat pressing mechanism, the rotating shaft rod is rotationally arranged on the machining platform, the outer baffle is arranged on the rotating shaft rod, the movable support is arranged on the outer baffle, the flat pressing mechanism is movably arranged on the movable support, and the driven assembly is rotationally arranged on the machining platform. The driven assembly comprises a driving shaft and a push rod. Therefore, the joint strip type film is placed on the machining platform to be automatically limited, the joint strip type film is pressed, fixed and limited in the cutting process, wrinkles are effectively taken out and tensioned, the smoothness of the cutting end face is guaranteed, and the quality of a finished film product is improved.

The present invention relates to the technical field of current transformers, and in particular to a winding device for a primary coil of a current transformer and a winding method thereof, comprising a base and a stand, wherein the stand is vertically mounted on the base, a ring seat is rotatably mounted on the stand, a mounting ring is arranged on the outer side of the ring seat, a rectangular seat is bolted to the outer side of the mounting ring, a gear ring is mounted on the inner side of the ring seat, notches are provided on the ring seat, the mounting ring, the rectangular seat and the gear ring, a rotating plate is rotatably mounted in the notch of the rectangular seat; and during the winding process, the right-angle seat is moved by operating a first pneumatic cylinder, the horizontal section of the right-angle seat is contacted with the silk tape on the top side of the rectangular seat, the vertical section of the right-angle seat is contacted with the silk tape on the side wall of the rectangular seat, the silk tape on the top side of the rectangular seat is flattened by a translational wheel seat and a pressure wheel, automatic flattening is achieved, and each layer of the silk tape is ensured to be tightly fitted and wrinkle-free.

The present invention discloses a flexible rolling device suitable for a square-shell lithium battery coating machine. The flexible rolling device of the square-shell lithium battery coating machine of the present invention has concave-shaped covers at both ends of the roller, a layer of elastic lining is wrapped on the surface of the rigid roller, the lining is flush with the concave-shaped cover, a layer of modified nylon mesh is stretched between the covers at both ends, and a layer of silicone foam layer is coated on the outer layer of the nylon mesh. Through the structural form of the flexible roller itself, the battery shell and the flexible roller are closely fitted, and the force is evenly applied, so that the flexible silicone foam layer can be closely fitted on the coated battery, fully squeezing the blue film and the battery aluminum shell, and the gas between the two is rolled out, and finally the battery coating is free of bubbles and wrinkles.

The invention discloses a preparation method of graphene composite high-entropy nitride ceramic. The preparation method comprises the steps of dispersing graphene, synthesizing high-entropy powder, mixing the graphene, sintering the ceramic and the like. Graphene is dispersed in a solution formed by PVP and absolute ethyl alcohol through a strong stirring method, efficient dispersion of graphene is achieved, and finally the composite ceramic with uniform components is obtained. Energy can be effectively dissipated by an intrinsic toughening mode (namely sliding and bending of the graphene and wrapping of crystal grains) introduced by the graphene and a non-intrinsic toughening mode (pulling-out of the graphene and crack deflection, bridging and forking caused by the graphene), and the fracture toughness and bending strength of the ceramic are improved. When the addition amount of the graphene is 2.5 wt.%, the Vickers hardness, the fracture toughness and the bending strength of the composite ceramic respectively reach 18.36 GPa, 383 MPa and 4.78 MPa.m < 1 / 2 >, and the fracture toughness is improved by 63.1%.

The utility model discloses a pair of anti-wrinkle casual pants, which belongs to the field of clothes, comprises a pants body and is characterized in that the pants body is provided with an adjusting part and a pull rope, one side of the adjusting part is provided with a plurality of adjusting threads, and the other side of the adjusting part is provided with a plurality of positioning rubber rings which can be abutted against the adjusting threads. When the pair of trousers is used, if a user wants to adjust the pair of trousers into small-leg trousers, the user only needs to pull out the fixing piece, step on the fixing piece and pull the blocking piece by hand, the pull rope can be pulled, the pull rope drives the adjusting line to enable the adjusting line and the rubber ring to slide, and when the needed trouser leg width is adjusted, the adjusting line is connected with the rubber ring in series. When the user releases the blocking piece, the rubber ring and the adjusting line are abutted and positioned, so that the adjusting line and the rubber ring do not slide, and the decorative piece is hung on the pull rope, so that the decorative piece can pull the pull rope to slide downwards, and the trousers which are originally wrinkled when the pull rope is pulled are stretched open, so that the appearance of the trousers is not affected by wrinkles.

The present invention discloses a cloth drying device with a vibrator, which relates to the technical field of cloth drying, and comprises a bracket, glass plates are fixedly installed on both sides of the top of the bracket, a heat preservation cover is fixedly installed on the top of the two glass plates, drying tubes are evenly fixedly installed on the edges of the opposite sides of the two glass plates and located at the bottom of the heat preservation cover, and an extrusion and smoothing mechanism is fixedly installed on one end of the top of the bracket and located outside the heat preservation cover. The present invention arranges an extrusion and smoothing mechanism and a lower pressure roller at one end of the bracket. During the process of conveying and drying the cloth, the third rotating shaft and the spiral plate rotate to scrape the cloth from the middle to both sides, so that the cloth can be smoothly moved between the upper pressure roller and the lower pressure roller, thereby squeezing water from the cloth smoothly, and then the cloth is smoothly entered into the heat preservation cover, and the cloth is wrinkle-free throughout the whole process, so that the drying is more uniform, and it is also convenient to roll up the cloth later.

The present invention discloses a phosphorus-containing epoxy curing agent and a preparation method thereof. After the epoxy curing agent and epoxy resin are cured into a polymer, the flame retardant effect can be improved because the phosphorus is in the main chain. The epoxy curing agent has multiple functions, a simple preparation process, high product purity, a non-toxic and harmless production process, and is easy to carry out large-scale production.

The present invention discloses a curing blanket laying device used for river slope protection, and relates to the field of engineering construction auxiliary technology. It comprises a frame, a shell is welded and fixed at the upper end of the inner side of the frame, an inclined frame is welded and fixed at the lower end of the inner side of the frame, a crossbeam is arranged at the lower end of the inclined frame on the inner side of the frame, and a connector is arranged on one side of the frame. Through the provided shell assembly structure, multiple groups of curing blankets can be automatically unloaded in an orderly manner, thereby improving the laying efficiency and reducing the time consumed by workers to frequently add curing blankets. Through the provided inclined frame and crossbeam assembly structure, the automatic laying of the curing blanket can be completed. During the process, one end of the curing blanket will be automatically clamped first, and then its gravity will be used for unwinding and laying, so that the curing blanket is covered flatly and without wrinkles. Through the provided connector assembly structure, it can automatically shovel up uncleaned large stone impurities in the river slope protection and collect them, thereby reducing the workload of manual cleaning.

Provided is a polyvinyl alcohol-based water-soluble film which has excellent followability to a mold during molding and which can be molded into a package having an excellent appearance. The water-soluble film is characterized in that the water-soluble film contains a polyvinyl alcohol-based resin (A), and the initial elastic modulus obtained by a tensile creep test using a dynamic viscoelasticity measurement device is 2.5-10 MPa.

This invention belongs to the field of semiconductor materials technology and discloses a method for preparing transferable layered bismuth oxide selenide semiconductor thin films by heterolayer interface control. The method includes: 1) activating and growing a substrate; 2) depositing an interface-controlled heterolayer, which is a two-dimensional material or a water-soluble oxide; 3) CVD growing a Bi₂O₂Se thin film on the heterolayer; and 4) using a polymer support film to assist wet peeling, separating the film from the substrate and transferring it to a target substrate. This invention solves the problem of non-destructive transfer due to excessively strong adhesion between the film and substrate by introducing a heterolayer with weak interfacial interactions, and is applicable to fields such as flexible electronics and silicon-based integration.

This application discloses a foreign fiber removal device for cotton web, relating to the field of textile machinery and equipment. It includes a frame and a feeding conveyor belt, a foreign fiber detection component, and a spray valve assembly mounted on the frame. An impurity collection channel is fixedly provided at the feeding end of the feeding conveyor belt. The impurity collection channel has an upper opening as its inlet and a lower opening as its outlet, with the inlet plane located below the conveying surface of the feeding conveyor belt. The foreign fiber detection component and the spray valve assembly are located above the feeding conveyor belt and the impurity collection channel, with the detection end of the foreign fiber detection component and the ejection end of the spray valve assembly both facing the inlet of the impurity collection channel. This device can perform online foreign fiber detection and positioning on the cotton web output from the carding machine, and spray airflow to accurately eject foreign fibers. Combined with the fan and impurity collection channel, it quickly guides foreign fibers away from the production line, thereby effectively removing foreign fiber impurities from the cotton web and achieving online removal of foreign fibers from the cotton web.

The invention relates to the technical field of water filtration, in particular to a processing method of a membrane module for water treatment, which can effectively improve the working efficiency during cutting, enable the edge of a material to be cut more tidily, avoid the influence on the subsequent processing quality and improve the practicability, a filter membrane, grid cloth and flow guide cloth are respectively cut into a plurality of pieces by using cutting equipment, and the cutting efficiency of the filter membrane, the grid cloth and the flow guide cloth is improved. A cut filtering membrane is folded along the center line, a cut grid cloth piece is placed in the folded filtering membrane, a filtering unit is obtained, four sets of supporting legs are fixedly arranged at the bottom end of the machining table, and a plurality of sets of sliding blocks are installed on an I-shaped cross beam in a sliding mode through cooperation of T-shaped grooves and the I-shaped cross beam. Two sets of T-shaped sliding rods are symmetrically and fixedly arranged at the top end of the fixing frame, the two sets of T-shaped sliding rods are slidably installed on the two sets of supporting plates respectively, a pressing roller is rotationally installed on the fixing frame, the two sets of T-shaped sliding rods are sleeved with springs, and the two ends of the springs are fixedly connected with the supporting plates and the fixing frame respectively.

This invention relates to the field of lithium-ion battery manufacturing technology, specifically providing a full-tab battery cell for large cylindrical batteries, its preparation method, and applications. This invention innovatively employs a "winding-fixing-laser axial cutting-graded flattening" process flow, changing the traditional "cut-then-winding" process long used in the industry, achieving a breakthrough in the precision of tab forming. Specifically, after the bare cell is wound, the blank areas of each current collector layer have formed a stable stacked structure, which is precisely fixed using a special fixture and simultaneously cut along the axial direction by laser, completing the high-precision forming of multiple tabs in one step. This method fundamentally eliminates the problem of accumulated deviations caused by step-by-step operations in traditional winding processes, stably controlling the tab alignment accuracy within 0.1mm, effectively solving the long-standing problem of alignment consistency in existing technologies.

The utility model discloses full-automatic straight paper cup processing equipment which comprises a bottom plate, a plurality of rollers are rotatably connected to the inner surface of the bottom plate, a paper conveying belt is rotatably connected to the outer walls of the rollers, a supporting frame is fixedly connected to the upper surface of the bottom plate, a hydraulic rod is fixedly connected to the lower surface of the supporting frame, and a lifting frame is fixedly connected to the lower end of the hydraulic rod. A cover shell is fixedly connected to the lower surface of the lifting frame, two sliding grooves are formed in the cover shell, sliding blocks are connected to the inner surfaces of the two sliding grooves in a sliding mode, through the components, the edge of paper can be flattened, the paper can be wound and attached to be made into the paper cup subsequently, the flat edge can guarantee that all parts of the paper cup are attached tightly in the forming process, and the paper cup forming quality is improved. The paper cup is simple in structure and free of wrinkles and gaps, so that the overall quality of the paper cup is improved, and the situation that paper scraps are clamped between the edges of the paper when the paper is wound and attached, and the paper cannot be completely and tightly attached together can be prevented.

The utility model relates to the technical field of live broadcast background management, discloses a digital human live broadcast background management device, and solves the problem that a curtain is not firm and flat enough during installation. During installation, the upper end of the curtain is fixed through mutual attraction of a magnetic plate B and a magnetic plate C, then a motor A is used for driving a lead screw A to rotate, a lifting block moves downwards along a lifting frame, a smoothing plate is used for being matched with the magnetic plate A to abut against one face of a curtain body and smoothing the face, and it is guaranteed that the surface of the curtain body is not wrinkled after installation is completed; the magnetic plate D and the magnetic plate A are used for fixing, flatness and stable fixing of the curtain are guaranteed, air blowing is carried out through extrusion in the moving process, dust on the surface of the curtain is removed, and finally the purposes of dust removal and background display effect guaranteeing while firm installation and flatness are guaranteed are achieved.

The invention discloses an oversized raw material discharging device and die cutting production equipment applying the oversized raw material discharging device, the die cutting production equipment comprises the oversized raw material discharging device, the die cutting equipment and a material collecting roller set which are arranged in sequence, a material roller and a guide roller are rotationally installed in a rack of the oversized raw material discharging device, a press-fit die is installed in the die cutting equipment, and the material collecting roller set is connected with the oversized raw material discharging device. The press-fit die comprises a press-fit plate and a bearing plate, and the press-fit plate and the bearing plate are installed in a working area of the die cutting equipment in an up-down alignment mode. According to the die-cutting production equipment, oversized materials are restrained through the customized storage table, the positions of the materials are accurately positioned, a stable die-cutting foundation is provided for subsequent procedures, smooth fitting of the materials can be guaranteed through the pressing die and the positioning opposite-fitting structure, meanwhile, the oversized materials are free of wrinkles, bubbles and other defects after fitting, and smooth production is guaranteed.

The utility model discloses an unwinding control system for composite spunlace cloth production, which relates to the technical field of spunlace non-woven fabric production equipment and comprises a controller, an unwinding platform, a drawing machine, a first web outlet curtain, a long conveying curtain, an inclined curtain, a second web outlet curtain, a web conveying curtain, a spunlace machine, an unwinding machine and a carding machine. A tension roller, a cloth guide roller I, a cloth guide roller II and a cloth guide roller III are arranged between the unreeling machine and the carding machine, a tension sensor is arranged on the tension roller, a drafting roller set is arranged above the inclined curtain, a pressing roller is arranged behind the second web outlet curtain, and the controller is in control connection with the infrared sensor, the tension sensor and the motor. And the tension roller, the cloth guide roller I, the cloth guide roller II, the cloth guide roller III, the pressing roller and a driving mechanism of the spunlace machine are respectively in control connection with the tension roller, the cloth guide roller I, the cloth guide roller II, the cloth guide roller III, the pressing roller and the spunlace machine, so that the problems that in the prior art, when composite spunlace cloth is produced, a coiled material is prone to wrinkling, breaking and stacking, the coiled material and a cotton web are instable during compositing, and the product quality is affected are solved.

The utility model relates to the technical field of battery manufacturing, in particular to a dry-method electrode rolling film-forming production line. The dry electrode rolling film forming production line comprises an extension mechanism, the extension mechanism comprises a driving roller and a plurality of extension rollers matched with the driving roller, the driving roller and the extension rollers are oppositely arranged, the driving roller and the extension rollers are arranged in parallel, and the total length of the extension rollers is smaller than that of the driving roller, the extension rollers and the driving roller which are used for extending a non-coating area of a material belt. Due to the fact that the material belt firstly passes through the extension mechanism to enable the non-coating area to be stretched, and then the coating area is calendered, the non-coating area is calendered and stressed in advance to release stress in advance, when the coating area of the material belt is calendered, the reverse acting force borne by the non-coating area is reduced, and then the flat material belt is obtained. And the non-coating area of the pole piece does not wrinkle after being stretched.

The application discloses a 46120 type cylindrical battery shell drawing process, which comprises the following steps: drawing a blank with a diameter of 145mm-150mm and a thickness of 0.6mm±0.06mm, the drawing coefficient ranges from 0.54 to 0.56, the first concave die entering mode radius ranges from 7mm to 10mm, the first convex die radius ranges from 7mm to 10mm, the edge pressing mode is flat edge pressing, the edge pressing force ranges from 2.5T to 3.0T, and a hollow cylindrical first semi-finished product is formed after drawing. The 46120 type cylindrical battery shell drawing process can realize the forming of the cylindrical battery shell through four drawing processes, and greatly improves the drawing efficiency.

The invention discloses a yardage roll stacking and storing device and belongs to the technical field of yardage roll stacking, the device comprises a frame, a Y-axis displacement assembly, an X-axis displacement assembly, a Z-axis displacement assembly and a clamping assembly, and the clamping assembly comprises a first clamping plate and a second clamping plate which are used for clamping a yardage roll from the radial direction of the yardage roll. The clamping assembly clamps the yardage roll in the radial direction of the yardage roll, and the side pushing assembly pushes the yardage roll in the axial direction of the yardage roll, so that stacking and storage of the yardage roll can be completed, and the yardage roll stacking device is suitable for stacking frames and goods shelves with upper openings or side openings and is wide in application range; on the premise that parts of the clamping assembly and the side pushing assembly do not need to enter the goods shelf, the cloth roll is placed on the goods shelf, and the cloth roll can be placed in the storage compartment with the diameter close to that of the cloth roll; and the adaptability to the installation environment is good, and various cloth rolls can be stored in a classified and shelf-divided mode at the same time.

The invention discloses automatic packaging equipment for optical protective film production, and relates to the technical field of optical protective film packaging, and the automatic packaging equipment comprises an optical protective film limiting conveying module, a packaging module and an auxiliary overturning module; the optical protective film limiting conveying module comprises a base, a linear motion module is installed at the upper end of the base, a main drive turnover mechanism is installed above the output end of the linear motion module, and limiting assemblies are symmetrically installed on the left side and the right side of the main drive turnover mechanism. The auxiliary turnover module comprises a mounting frame, an auxiliary turnover mechanism and a control assembly are mounted on the mounting frame, and the control assembly is used for driving a turnover roller set on the auxiliary turnover mechanism to be attached to the side portion of the optical protective film roll. According to the automatic packaging equipment for optical protective film production, through limiting, main and auxiliary cooperative overturning and automatic winding packaging, high-precision, lossless, efficient and full-automatic packaging of optical film rolls of different specifications is achieved, slipping, eccentricity and wrinkles are effectively prevented, and the clean and flat packaging requirements of high-end optical materials are met.

The invention relates to an aviation sheet metal heat shield part forming die and a forming method, and belongs to the technical field of aviation manufacturing sheet metal forming. The invention discloses an aviation sheet metal heat shield part forming die and a forming method. The forming die comprises a drawing die and a hydraulic die. The drawing die is used for forming a semi-finished product part and comprises a female die, a male die, a blank holder, an ejector block, an upper die plate and a lower die plate, the female die and the ejector block are respectively connected with the upper die plate, the male die and the blank holder are respectively connected with the lower die plate, a part combination blank is arranged between the male die and the ejector block, and the blank holder tightly presses the part combination blank. The hydraulic die is used for forming a final part finished product and comprises a hydraulic female die, a hydraulic male die and a cover plate, during hydraulic forming, the cover plate presses the web face of a semi-finished part, the semi-finished part is completely attached to the hydraulic female die and the hydraulic male die, and the final part finished product is obtained after trimming. The invention has the following advantages: the production efficiency of parts is improved; the qualified rate of parts is high; and the production efficiency is obviously improved.

The present invention relates to a composite film quality detection device for high-temperature sterilization and sealing, comprising: a frame provided with a table, a controller connected to the frame, a visual detection system, a medium container arranged at the lower side of the table, a sample bottle arranged between the table and the medium container, a transfer and steering device for clamping the sample bottle, a quantitative sampler for cutting and testing composite film samples, a heat sealing device for heat-sealing the composite film samples on the mouth of the sample bottle, a metering filling device for filling the sample bottle with contents, and a composite film sample shifting device for moving the composite film sample from the quantitative sampler to the heat sealing device; the visual detection system is connected to the lower end of the table. The composite film quality detection device for high-temperature sterilization and sealing can prevent the product from being scrapped after filling by detecting the quality of the composite film in advance.

The invention discloses an FFS film production and manufacturing process, and relates to the technical field of FFS film manufacturing. The FFS film production and manufacturing process is completed through cooperation of a testing table, a supporting column, an ejector rod, a fixed pressing plate, a self-paving mechanism and a multi-direction pulling testing mechanism, a placing plate is fixedly connected to the upper end face of the supporting column, an L-shaped plate is fixedly connected to the upper end face of the testing table, and the ejector rod is slidably connected to the lower end face of the transverse section of the L-shaped plate through an electric telescopic rod; the direction adjusting assembly comprises a rectangular ring rail which is fixedly connected to the containing plate through a connecting rod and arranged outside the supporting column in a sleeving mode, a rectangular guide groove is formed in the upper end face of the rectangular ring rail, and a guide column slidably connected into the rectangular guide groove is fixedly connected to the lower end face of the C-shaped frame. Intermittent automatic adjustment of the self-clamping assembly is achieved through combination of the rectangular guide grooves and the guide columns, tensile testing is conducted on the FFS film from multiple directions to more accurately simulate multi-direction stress in actual use, tearing strength data closer to the real environment are provided, and therefore the accuracy of the testing result is improved.

The utility model provides a gift box L-shaped sealing and cutting machine structure capable of improving heat shrinkage uniformity, and belongs to the technical field of sealing and cutting machines, the gift box L-shaped sealing and cutting machine structure capable of improving heat shrinkage uniformity comprises a sealing and cutting base, a pressing cover frame, an adjusting baffle assembly, a heating wire assembly and a cutter assembly, the press-fit cover frame is located over the sealing and cutting base, the sealing and cutting base and the press-fit cover frame are correspondingly arranged in the vertical direction, the short edge of one side of the press-fit cover frame is connected with the corresponding short edge of the sealing and cutting base through a hinge structure, and a rotating shaft of the hinge structure is parallel to the straight line where the short edge of the sealing and cutting base is located. The adjusting baffle assembly is installed in the sealing and cutting base, the heating wire assembly is arranged around the adjusting baffle assembly, the cutter assembly is installed at the corresponding position of the sealing and cutting base and the pressing cover frame, and the problems that heating elements in a traditional sealing and cutting machine are unreasonable in layout and uneven in stress are solved.

The subject of the present invention is to provide a new photocurable composition for imprinting. The solution is a photocurable composition for imprinting, which is a photocurable composition for imprinting comprising the following (a) component, the following (b) component, the following (c) component, and the following (d) component, wherein, relative to 100 parts by weight of the total amount of compounds having ethylenically unsaturated groups contained in the composition, the (a) component is 10 to 40 parts by weight, the (b) component is 10 to 50 parts by weight, the (c) component is 1 to 10 parts by weight, and the (d) component is 0.1 to 5 parts by weight. (a): silica particles having a primary particle size of 1 nm to 100 nm and surface-modified with functional groups having ethylenically unsaturated groups (b): monofunctional (meth)acrylate compound having ethylenically unsaturated groups (c): polyrotaxane having ethylenically unsaturated groups (d): photoradical initiator.

The utility model discloses an auxiliary use mechanism of self-adhesive conductive foam, which comprises a protection mechanism, a material ejecting assembly and a material pressing assembly, and is characterized in that the protection mechanism comprises an outer cover shell, a positioning shaft and a feeding plate, and the positioning shaft is arranged in the outer cover shell; the feeding plate is arranged on the outer cover shell; the material ejecting assembly is arranged on the outer cover shell and comprises an outer shell, a rotating shaft, an outer sleeve, a material ejecting plate and a positioning screw rod, and the outer shell is arranged on the outer cover shell; the rotating shaft is rotationally arranged in the outer shell; the outer sleeve sleeves the rotating shaft; the ejector plate is arranged on the outer sleeve; the positioning screw rod is arranged in the outer shell, and the rotating shaft is in threaded connection with the positioning screw rod; the material pressing assembly is arranged on the outer cover shell. Therefore, the conductive foam is laid without being held by hands, the base material is pushed to be flat in the laying process, and the quality of a formed part is guaranteed while the laying efficiency is improved.

The utility model discloses a double-motor slub yarn production device which comprises an unwinding operation rack, a gauze unwinding machine roller is installed on the unwinding operation rack, a yarn covering operation rack is installed on one side of the unwinding operation rack, a yarn covering operation machine roller is installed on the yarn covering operation rack, and a yarn covering machine roller is installed on the other side of the unwinding operation rack. A fixed conveying machine roller is installed on one side of the yarn covering operation machine roller, an adjusting conveying machine roller is installed on the other side of the yarn covering operation machine roller, the yarn covering operation machine frame is connected with a rotating support through a fixed shaft rod, and a fixed clamping groove is formed in the upper end of the rotating support. The two ends of the adjusting conveyor roller are connected with the fixing clamping grooves through fixing clamping shafts. According to the bunchy yarn covering machine, the unrolling operation rack and the yarn covering operation rack which are convenient to assemble are installed, automatic unrolling and yarn covering operation can be conveniently conducted on bunchy yarn, meanwhile, the adjusting conveyor roller capable of being rotationally adjusted is arranged and can be used for controlling the installation distance and angle between the adjusting conveyor roller and the yarn covering operation roller, and the production efficiency is improved. The yarn covering tension of the bunchy yarn can be conveniently adjusted and controlled.

The utility model discloses an all-in-one machine testing device, and relates to the technical field of all-in-one machine testing devices. The device comprises a working table, supporting legs are fixedly connected to the bottom of the working table, a supporting ring and a supporting column are fixedly connected to the top of the working table, a clamping plate and a limiting ring are arranged above the working table, a sliding rod is fixedly connected to the inner wall of the supporting ring, and a supporting lug is slidably connected to the outer surface of the sliding rod. According to the utility model, the pull rods are arranged, specifically, sheet articles for friction testing are placed on the surface of the bearing platform, the pull rods on the surface of the bearing platform are sequentially pulled, the first spring is stressed through the pull rods, and meanwhile, the clamping plate is fixed with the pull rods, so that the clamping plate upwards extrudes the second spring to apply acting force to the limiting block; the thin sheets are sequentially placed at the bottom of the clamping plate to be clamped and fixed with the bearing platform, so that the thin sheets are in a stable plane in a friction test project subsequently, wrinkles are avoided, and measured data are real and reliable.