31results about How to "Avoid product quality defects" patented technology

The invention discloses an automatic painting robot for shipbuilding coating. The automatic painting robot for shipbuilding coating comprises a painting movement mechanism, a PLC and a spray gun; the painting movement mechanism comprises a side-to-side movement mechanism, a front-to-back movement mechanism and a rotational movement mechanism; the side-to-side movement mechanism comprises a first shell, a sliding block and a first motor, the first motor drives the sliding block to move from side to side, the spray gun is fixedly arranged on the sliding block, and the first shell is provided with a distance measuring sensor; the front-to-back movement mechanism comprises a second shell, an inner shell and a second motor, and the inner shell moves back and forth in the second shell; the rotational movement mechanism comprises a support plate, a third motor and a fixed gear wheel, the side-to-side movement mechanism and the support plate are connected with the inner shell through a bearing, the third motor drives the side-to-side movement mechanism to rotate around the bearing, and the distance measuring sensor, the first motor, the second motor and the third motor are electrically connected with the PLC. According to the automatic painting robot for shipbuilding coating, the work efficiency is improved, the labor cost is reduced, the construction period is shortened, the evenness of a paint coating is good, and the quality of the paint coating is improved.

The invention provides a preparation method of a fine-sand-shaped raw material, and aims to overcome the defects of unstable preparation and mixing as well as poor uniformity in the fine-sand raw material for additive manufacturing equipment. According to the preparation method of the fine-sand-shaped raw material, a butterfly valve type switch component is arranged on a hardware component, and hardware actions are controlled through software in order to realize accurate control of the adding amount. In the preparation method of the fine-sand-shaped raw material, a reasonable stirring structure is provided, and the stirring time is controlled, so that the mixing uniformity is realized, thereby ensuring the accuracy of raw material preparation and the mixing uniformity, and guaranteeing theproduction of qualified products.

The invention relates to a preparation method of an ultra-light multi-feature skin-free skeleton type composite material shell. The preparation method comprises the following steps of automatically winding linear trajectory planning by arranging an end socket guiding and positioning device capable of freely moving, achieving accurate groove entering numerical control automatic winding of 'non-geodesic line 'equidistant spiral ribs and annular rib hot melting prepreg filaments and alternate proceeding of framework ribs and multi-feature structure laying are. Aiming at a multi-feature skin-free skeleton type structure, uniform and effective connection of side wall flanges, end frames and skeleton ribs is realized through balanced interactive coupling layering structure design, accurate calculation of a skeleton rib hot-melt prepreg filament winding cycle number, balanced interactive coupling rib winding-end frame-opening reinforcing area layering structure, rib scattering and the like, and the overall rigidity and stability of the product are ensured. By optimizing the design of a framework rib R-angle mold, a pre-compaction control technology and a reasonable curing process, the problems of poor rib size precision, rib defects and product quality defects caused by the problem of multi-feature structure curing pressurization interference due to edge overflow of a skin-free framework rib are solved, high-quality and high-dimensional-precision integrated forming of the ultra-light multi-feature skin-free framework composite material shell is achieved, the weight is reduced by 30% or above compared with a traditional skin structure, and the requirement for light weight of spaceflight models is met.

The invention discloses an automatic painting robot for shipbuilding painting, which includes a painting movement mechanism, a PLC and a spray gun; the painting movement mechanism includes a left and right movement mechanism, a front and rear movement mechanism and a rotation movement mechanism; The first motor, the first motor drives the slide block to move left and right, the spray gun is fixed on the slide block, the first shell is provided with a distance sensor; The internal movement of the motor moves back and forth; the rotary motion mechanism includes a support plate, a third motor and a fixed gear, the left and right motion mechanism and the support plate are connected to the inner shell through a bearing, the third motor drives the left and right motion mechanism to rotate around the bearing, the distance measuring sensor, the first motor , the second motor and the third motor are respectively electrically connected to the PLC. The invention improves work efficiency, saves labor cost, shortens construction period, has good uniformity of paint coating, and improves the quality of paint coating.

The invention discloses a water-based ink cooling device for gravure printing, which comprises a cooling water tower, a main water inlet pipe, a main water outlet pipe, a high-pressure resistant water inlet cooling pipe, a high-pressure resistant water outlet cooling pipe, a cooling water bucket and a cooling copper pipe; The copper pipe is fixedly arranged on the inner side wall of the cooling bucket through the water inlet joint and the water outlet joint, and the high pressure resistant water inlet cooling pipe and the high pressure resistant water outlet cooling pipe are connected with the water inlet joint and the water outlet respectively. The water outlet is connected by a joint, the main water inlet pipe and the main water outlet pipe are respectively connected to the cooling water tower, the high pressure resistant water inlet cooling pipe is connected to the main water inlet pipe, the high pressure resistant water outlet cooling pipe is connected to the Main outlet connection. The device can effectively reduce the temperature of the gravure water-based ink, and control it within the temperature range required by the process, reduce the influence of the temperature of the gravure water-based ink on the pH value and viscosity of the ink, and make the printing suitability of the ink more stable. Solve product quality defects caused by ink temperature rise.

The invention discloses a gravure water-based ink constant temperature control device, which comprises a cooling water tower, a main water inlet pipe, a main water outlet pipe, a high pressure resistant water inlet cooling pipe, a high pressure resistant water outlet cooling pipe, a cooling water bucket, a cooling copper pipe and an adjustable thermal expansion valve; the cooling copper pipe is fixedly arranged on the inner side wall of the cooling bucket through the water inlet joint and the water outlet joint, and the high pressure resistant water inlet cooling pipe and the high pressure resistant water outlet cooling pipe respectively The water inlet joint is connected with the water outlet joint, the main water inlet pipe and the main water outlet pipe are respectively connected with the cooling water tower, the high pressure resistant water inlet cooling pipe is connected with the main water inlet pipe, and the water resistant The high-pressure water outlet cooling pipe is connected to the main water outlet pipe, and the adjustable thermal expansion valve is arranged in the middle of the high-pressure resistant water outlet cooling pipe. The device can effectively reduce the temperature of the gravure water-based ink, and control it within the temperature range required by the process, so that the printability of the gravure water-based ink is more stable.

The invention provides a molding mold of a plum blossom-shaped united-row-type plastic pin. The molding mold comprises an upper fixing plate, a front mold, a rear mold, a support plate, a material pushing plate and a lower fixing plate. The molding mold is characterized in that the front mold is fixed to the upper fixing plate, the front mold and the rear mold are closed and form a plum blossom-shaped cavity, the support plate is arranged between the material pushing plate and the rear mold, the material pushing plate is connected to two mold feet, the lower fixing plate is fixedly connected to the two mold feet and a rear mold middle plate, an upper ejector plate is fixed to the rear mold middle plate by bolts, the rear mold middle plate and the upper ejector plate are located between the two mold feet, a return pin is fixedly connected to the rear mold middle plate, the return pin goes through the upper ejector plate and is connected to the rear mold, the outer side of the rear mold is fixedly connected to a limiting block by bolts, the outer side of the front mold is fixedly connected to a T-type limiting guide rail by bolts, and in mold operation, the limiting block can vertically move along the limiting guide rail. Through the structure of the molding mold, ejection motion is smooth. The molding mold provides an energy saving and reliable ejection method.

The invention discloses a preparation method of insulating cardboard. Firstly, the thickness and quantity of the single board are selected according to the thickness of the insulating cardboard, and then humidified, stacked, placed, and molded, and then the wet cardboard on the mold is cold-pressed and hot-pressed. Finally cut to shape. The invention can effectively remove the defects caused by the adhesive in the preparation of the insulating cardboard with a thickness of 10 mm to 50 mm, and improve the overall quality and production efficiency of the insulating cardboard.

The invention discloses a method for designing a tooth profile contour line of a spinning roller during spinning forming of an internal and external tooth part, which comprises the following steps of: firstly, determining a tooth number ratio between a core mold and the spinning roller and the tooth number of the spinning roller, and then obtaining a primary shape of the tooth profile contour line of the spinning roller by adopting a generation method according to an external contour shape of the internal and external tooth part; and according to the contact and friction conditions between each deformed part of the blank and the core mold or the spinning roller in the spinning forming process and the generated non-uniform deformation, the initial shape of the tooth profile of the spinning roller is adjusted by combining the wall thickness requirement of the internal and external tooth part, so that the tooth profile line of the spinning roller is obtained. The defects in the prior art are overcome.

The invention discloses a device for online wear detection of a self-piercing riveting gun mold. The device is characterized in that an image acquisition platform is provided for a riveting gun mold on a piercing riveting production line; an image acquisition device for obtaining a mold image is mounted on the image acquisition platform; an image acquisition signal of the image acquisition device is used as an output signal; a computer is used for analyzing the output signal so as to judge the wear degree of a mold. The device provided by the invention can timely monitor the wear state of the mold in an online detection manner, avoids product quality defects, also avoids tediousness brought by disassembly process and the influence on the normal process section, effectively improves the production efficiency, and ensures the product quality.

The invention relates to a control method for utilizing a roller diameter difference to achieve automatic pressing zeroing of an aluminum cold rolling mill. The method comprises the steps of determining given roller gap values by determining the parameters of contact rolling force and squeezin rolling force of roller systems and utilizing the roller diameter difference, wherein the given roller gap values are calculated by calculating the roller diameter difference of the new and old roller systems before roller replacement, and the two roller gap values including the initial roller gap valueand the secondary roller gap value are given by stages; conducting automatic pressing on the basis of the calculation parameters. By means of the method, the production efficiency and finished productratio of the rolling mill are increased, and the occurrence of product quality defects caused by pressing is avoided.

The invention provides an automatic panel stacking adjusting device and a control method. The automatic panel stacking adjusting device is characterized by comprising a stacking trolley, a panel storage tray, two groups of beaters and at least four laser range finders; the panel storage tray is placed on a platform of the top of the stacking trolley, and the edge of the panel storage tray is parallel to a working datum line; the at least four laser range finders are correspondingly arranged on the periphery of the stacking trolley and are aligned with the panel storage tray; the two groups ofbeaters are correspondingly mounted through fixing beams; the fixing beams are parallel to the working datum line and have a moving degree of freedom perpendicular to the working datum line; the beaters have the degree of freedom of translation on the fixing beams; each fixing beam and each beater are correspondingly driven by a motor and are connected with an encoder; and the motor, the laser range finders, the encoder and the beaters are correspondingly connected with a controller. The production efficiency of a shearing line is improved, and the time for manually adjusting the positions ofthe panel storage tray and the beaters is shortened.

The invention overcomes the disadvantages of unstable configuration and mixing of fine sand-like raw materials in additive manufacturing equipment and poor uniformity, and provides a batching method of fine sand-like raw materials. The batching method of the fine sand-like raw material is achieved by setting a butterfly valve switch component on the hardware component and controlling the hardware action through software, thereby realizing accurate control of the amount added; the batching method of the fine sand-like raw material is achieved by setting a reasonable stirring structure And the control of mixing time realizes the uniformity of mixing, thus ensuring the accuracy of raw material configuration and uniformity of mixing, and then providing guarantee for the production of qualified products.

The invention relates to an automatic straightening device of a reed and belongs to the field of automobile part manufacture equipment. The automatic straightening device comprises a quenching furnace (1) and is characterized in that one side of the quenching furnace (1) is fixedly provided with a work table (2), the upper plane of the work table (2) is provided with a reed conveying device and a reed straightening device side by side, a support frame (3) is supported and fixed above the reed conveying device and the reed straightening device, and a control device is arranged on the support frame (3) and is connected with a motive power device (9) arranged at one side of a reed extrusion device. The automatic straightening device of the reed has the advantages that the automatic straightening of the reed can be realized, the work efficiency is improved, the labor and the materials are saved, the product quality is improved, meanwhile, a control system is simple, the machine halt caused by part damage can be effectively prevented, and in addition, the work is safer.

The invention relates to a deformed cigarette packet detecting and removing device and method and a cigarette packet conveying device. The deformed cigarette packet detecting and removing device comprises a deformed cigarette packet detection mechanism and a deformed cigarette packet removing mechanism, wherein the deformed cigarette packet detection mechanism is arranged on a cigarette packet conveying passageway and detects arrival of deformed cigarette packets through exterior outline extrusion force of the deformed cigarette packets, and the deformed cigarette packet removing mechanism is arranged on the downstream portion of the conveying passageway of the deformed cigarette packet detection mechanism and removes the deformed cigarette packets from the conveying passageway. According to the deformed cigarette packet detecting and removing device and method and the cigarette packet conveying device, the situation that the thicknesses of the cigarette packets are increased after deformation is taken into consideration, whether the deformed cigarette packets arrive or not can be detected by detecting the exterior outline extrusion force of the deformed cigarette packets through the system, and therefore the deformed cigarette packets can be removed out of the conveying passageway on the downstream portion of the conveying passageway after arrival of the deformed cigarette packets is detected, the deformed cigarette packets are prevented from flowing into the next procedure, damage which is caused by the deformed cigarette packets to downstream devices is avoided, and product quality defects caused when the deformed cigarette packets flow into finished products are avoided.

The invention relates to a transfer platform of a carrier. The transfer platform comprises a base, a transfer mechanism and a carrying mechanism, wherein the carrying mechanism is movably installed onlinear guide rails fixedly arranged on the two sides of the base through sliding blocks fixedly arranged on the two sides of the bottom surface, the transfer mechanism is fixedly arranged on the bottom surface of the carrying mechanism, and the transfer mechanism provides driving force for the the carrying mechanism to carry out reciprocating motion along the linear guide rails. According to thetransfer platform of the carrier, the carrier on the carrying mechanism can be accurately positioned, the position accuracy of the carrier in the packaging process can be improved further due to the positioning accuracy of the transfer mechanism, and the it is avoided that a ceramic plate is damaged due to poor positioning. In addition, the problems of site limitation and insufficient moving rangein the mechanical arm packaging process can be solved.

The invention discloses a lead-acid battery grid casting device, which comprises a movable mold, a fixed mold, an ejector rod arranged in the fixed mold to push out the grid in the mold cavity, and a movable mold guide rod fixedly connected to the fixed mold. It includes a frame and a power device, the fixed mold frame of the fixed mold is fixedly connected to the frame, the end of the push-pull rod connected with the power device is connected to both sides of the movable mold, and the push rod connected with the power device is located on the fixed mold The back side corresponds to the ejector rod set by the fixed mold. The invention utilizes the existing guide post and guide sleeve type grid mold for the cast plate machine, and does not need to make a purely manual grid mold with positioning pins, which has the advantages of saving cost and time. The invention uses the air cylinder to automatically open and close the grid mold and push out the grid at the same time, which not only improves the production efficiency, but also overcomes the product quality defect caused by manual tearing of the grid.

The invention relates to a method for machining a hot-mounted dam roller. The method for machining the hot-mounted dam roller comprises the steps of machining of a roller cylinder, machining of spindle heads and assembling of the roller cylinder and the spindle heads; assembling of the roller cylinder and the spindle heads comprises the following steps that the spindle heads and the roller cylinder are in interference fit to obtain the dam roller; unbalance amount of the dam roller is detected, center offset amount and the offset direction of the dam roller are calculated, when the unbalance amount is larger than 10 g based on a balance amount, a double-four-jaw chunk clamping device on a lathe is adopted to conduct eccentric borrowing on the dam roller, outer circle turning is conducted to remove the unbalance amount; and finish turning is conducted on a second outer circle of the roller cylinder and eighth outer circles, ninth outer circles and tenth outer circles of the spindle heads by adopting a numerical control lathe turning. The method for machining the hot-mounted dam roller has the advantage of high balance precision.