48results about How to "Make sure it's tight" patented technology

The invention relates to corrugated paper rolling equipment. The corrugated paper rolling equipment comprises an L-shaped main support, a coiling block device and a rolling device, the coiling block device is installed at the back end of the L-shaped main support, and the rolling device is installed at the bottom of the front end of the L-shaped main support. The corrugated paper rolling equipmentsolves the problems that during rolling and pulling of corrugated paper at present, multiple persons are needed for cooperation to finish the motions, the process is complex, during rolling, the persons need to fix the head of the corrugated paper to a coiling block and then conduct manual rotation, during rotation, the corrugated paper is not prone to being tightly rolled, paper faces are proneto being damaged by manual rolling, labor is wasted by manual work when the corrugated paper is pulled out from the coiling block, the pulling efficiency is influenced by the fact that the corrugatedpaper coiling block is not prone to rotating, in the pulling process, the corrugated paper wound around the coiling block is prone to loosening, tight rolling is not prone to achievement, time wastedin the process is long, the labor intensity is large, and efficiency is low; and the automatic rolling and pulling functions of the corrugated paper can be achieved.

The invention relates to the technical field of bed sheet production and manufacturing, in particular to an automatic folding device for disposable bed sheet production. The automatic folding device for disposable bed sheet production comprises a bottom plate, a supporting frame, an unwinding unit, a limiting unit, a laser cutting unit, a pressing unit, a folding unit and an adsorption moving unit. The automatic folding device for disposable bed sheet production provided by the invention solves the problems that in the existing bed sheet folding process, due to the fact that a bed sheet is made of a flexible material, the surface of the bed sheet is prone to wrinkling due to the lack of appropriate limiting in the folding process, and the folding effect of the bed sheet is affected; and the bed sheet is made of the flexible material, so that the surface of the bed sheet is usually clamped by a clamp to pull the bed sheet in the process of pulling the bed sheet, the surface of the bed sheet is easily damaged, and the later use effect of the bed sheet is influenced. According to the automatic folding device for disposable bed sheet production provided by the invention, the folding effect of the disposable bed sheet is improved, and the surface of the bed sheet is always kept in a flat state in the folding process of the bed sheet.

The invention discloses a method of preventing a connecting part between a concrete structure and a rear filling wall from being cracked. The method is characterized by comprising the following steps: masonry construction of filling wall, plasterering construction of filling wall and construction of pasting anti-cracked woven belt outside the connecting part, wherein the process of the construction of pasting anti-cracked woven belt outside the connecting part comprises grinding and cleaning up the surface of a substrate, snapping a line on the surface of the substrate to determine the gluing scope of the woven belt, coating primer in the gluing scope, gluing the anti-crack woven belt and pressurizing the woven belt to be fully soaked by a scrapping plate, and coarsening or protecting the surface of the anti-crack woven belt after colloid is dried or solidified. The method provided by the invention has the beneficial effects of ensuring that the filling wall and a primary concrete structure are built and squeezed densely by improving and promoting an existing traditional masonry construction process; meanwhile, furthermore anti-cracking or effectively covering can be realized by adopting an effective external enhanced cloth through the combined action of two defense lines, the overall process is simple and the idealistic anti-cracking effect can be realized.

The invention discloses a method for eliminating 1.175 mm high-strength steel oval coiling existing in short-process production. The method comprises the steps of control of tension of strip steel, reduction of pressure of a pinch roll, adjustment of coil diameter tension and adjustment of tension distribution in the strip steel coiling process and clockwise rotation of a coiled steel coil after staying. By means of the method, 1.175 mm high-strength steel oval coiling existing in short-process production can be eliminated.

The invention discloses a tension regulating device for textile production. The tension regulating device comprises a regulating frame, a regulating roller set and a stentering assembly; the regulating frame comprises two fixing blocks, first supporting columns and second supporting columns; the regulating roller set comprises a first regulating roller set and a second regulating roller set whichare located at the left and right ends of a regulating rod set correspondingly; and the stentering assembly is located between the first regulating roller set and the second regulating roller set andcomprises a stentering roller and a mounting frame, regulating pressure springs sleeve the two ends of the stentering roller, and the lower ends of the regulating pressure springs are connected with the mounting frame. The tension regulating device is high in practicality and ingenious and reasonable in structural design, the structural size of the tension regulating device can be regulated according to the conveying requirements of different fabrics or yarns, thus the tension regulating device can be applied to conveying of the fabrics or the yarns with the different requirements, the using range of the tension regulating device is expanded, it is ensured that the fabrics or the yarns always keep a tightening state in the conveying process, and the conveying rate of the fabrics or the yarns are increased more conveniently.

The invention discloses a cutting machine for hardware fitting production. The cutting machine comprises a cutting table and a cutting head set; the cutting table is provided with a positioning module; the positioning module comprises a positioning clamping plate, a slide frame and a positioning staff; a placing table is arranged at the front end of the cutting table, and is hinged with the cutting table; a collecting box is arranged under the placing table; and the cutting head set comprises a vertical adjusting module, a transverse adjusting module, a longitudinal adjusting module and a cutting head. Through a positioning module, the precise positioning between the cutting head and a workpiece cutting position is realized, so that the cutting precision is effectively improved, and the cutting error rate is reduced; the positioning module also can be used for realizing pressing and positioning of workpieces, so that the cutting precision is further improved, and the workpieces are prevented from moving in the cutting process; meanwhile, the cut workpieces can be temporarily placed through the placing table; a rotating cylinder is matched to realize automatic collection of the workpieces; and the workpieces accumulated on the placing table are automatically put in the collecting box for collection, so that the manual operation intensity is effectively relieved.

The invention relates to a coil vertical winding tensioning device and a tensioning method, and belongs to the technical field of transformer manufacture. According to the technical scheme, the coil vertical winding tensioning device comprises a lower chassis (1), an upper cover plate (2), upper necks (3), lower necks (4), rapid clamps (5), screws (7), bolts (8), left sliding blocks and right sliding blocks. The lower necks are formed in the left end and the right end above the lower chassis, the upper necks are formed in the left end and the right end below the upper cover plate, and the lower necks and the upper necks are mutually matched. The left sliding blocks are embedded in the lower chassis and the lower necks at the left end of the upper cover plate, the right sliding blocks are embedded in the lower chassis and the lower necks at the right end of the upper cover plate, the left sliding blocks and the right sliding blocks are same in structure and formed by front sliding blocks (9) and back sliding blocks (10) which are ranked together. The coil vertical winding tensioning device has the advantages that wires are arranged among the upper necks, the lower necks and the sliding blocks, threaded rods are screwed to ensure that the sliding blocks and the necks are stressed to clamp the wires and ensure that the wires are tensioned in the winding process of a coil, the structure is simple, and operation is convenient to conduct.

The invention discloses an intelligent dropper pre-configuration production line. The production line comprises a rack, a copper strand positioning and straightening unit, a robot braiding unit, press-fitting and wire-wrapping units, connecting wire clamp press-fitting units and a servo movement unit, wherein the copper strand positioning and straightening unit, the robot braiding unit, the press-fitting and wire-wrapping units, the connecting wire clamp press-fitting units and the servo movement unit are jointly arranged on the rack. The press-fitting and wire-wrapping units comprise press-fitting pipe press-fitting units and thimble positioning and wire-wrapping units, the copper strand positioning and straightening unit is used for smoothing out and cutting off a copper strand, the robot braiding unit is used for clamping the copper strand of the set length to penetrate through a press-fitting pipe and making the copper strand penetrate back to the press-fitting pipe and penetrate into a connecting wire clamp after the copper strand is wound around the thimble positioning and wire-wrapping units, the connecting wire clamp press-fitting units are used for press-fitting the connecting wire clamp, the servo movement unit is used for driving one set of the press-fitting and wire-wrapping unit to move for a set distance, and the press-fitting pipe press-fitting units are used forpress-fitting the press-fitting pipe. According to the intelligent dropper pre-configuration production line, through the cooperation of all the units, pre-configuration production of droppers can beachieved, thus the production efficiency can be improved, and the labor intensity of workers is effectively lowered.

The invention belongs to the field of material preparation, and particularly relates to a demolding tool and demolding method for a multi-wall box section structure composite part. The demolding toolis used for demolding a plurality of core molds of the multi-wall box section structure composite part and comprises a pressing plate assembly, an ejection mechanism and a stop block assembly, the pressing plate assembly comprises an upper pressing plate and a lower pressing plate, a molded surface formed between the upper pressing plate and the lower pressing plate is consistent with the appearance of the part; the ejection mechanism is mounted on one sides of the small ends of the core molds and used for loosening the core molds to be removed; and the stop block assembly is detachable, is mounted at the large end of the adjacent core molds of the core molds to be removed, and is used for stopping the movement of the adjacent core molds of the core molds to be removed; and the demolding method for the multi-wall box section structure composite part comprises the following step that the multi-wall box section structure composite part with the core molds is placed on a tool, the part ispressed through the pressing plate assembly, the stop block assembly is installed at the large ends of the core molds, and the core molds in the part is ejected out in order through the ejection mechanism. By means of the demolding tool and the formulated demolding method for the multi-wall box section structure composite part, demolding work of the multi-wall box section structure composite partcan be conveniently, reliably and safely achieved.

The invention relates to the technical field of logistics transportation, and particularly discloses a logistics buffering and fixing device. The device comprises a bearing table, a fence is fixed to the top of the bearing table, a shielding plate is fixed to the top of the fence, an extrusion plate is arranged below the shielding plate and vertically connected to the side wall of the fence in a sliding mode, and a first compression spring is fixed between the extrusion plate and the shielding plate; and a feeding port is formed in one side of the fence and hinged to a door plate used for blocking the feeding port, the hinged free end of the door plate is fixedly connected with a first rope, and the end, away from the door plate, of the first rope is fixedly connected to the top of the extrusion plate. The invention aims to provide the logistics buffering and fixing device so as to solve the technical problem that express goods are prone to bumping and damage.

The invention relates to a vehicle wheel hub end face milling device. The device comprises a base, a grinding device, a longitudinal adjusting supporting device, a transverse adjusting supporting device and a clamping device; the upper surface of a first region of the base is internally provided with two convex grooves; the grinding device comprises two grinding assemblies, and each grinding assembly comprises a grinding head, a drive motor and a motor base; the longitudinal adjusting supporting device is used for adjusting the displacement of the grinding device longitudinally and comprises two longitudinal adjusting supporting assemblies; the transverse adjusting supporting device is used for adjusting the displacement of the grinding device transversely and is connected to the two longitudinal adjusting supporting assemblies and the two motor bases are movably mounted on the transverse adjusting supporting device, so that the grinding device moves through the transverse adjusting supporting device relative to the base in the transverse direction; and the clamping device comprises a fixed seat, a driving device and a clamping assembly, and the clamping assembly comprises a longitudinal constraint unit and a transverse constraint unit. In use, the grinding operation is convenient, the grinding quality is good, and wheel hubs are clamped firmly.

The invention discloses a novel crawler car chassis. The novel crawler car chassis comprises a base, a front setting frame, a first-stage support, a second-stage support and a rear setting frame are arranged on the base from left to right, the base jointly formed by the front setting frame, the first-stage support, the second-stage support and the rear setting frame is adopted, a tensioning roller, a first-stage roller and an active roller are arranged on the same horizontal line of the front setting frame, the first-stage support, the second-stage support and the rear setting frame, and the upward supporting action force is provided for a caterpillar band; a supporting mechanism is horizontally arranged on the low positions of the first-stage support and the second-stage support, and canrotatably extrude the caterpillar band, and stable rotation of the caterpillar bands can be ensured; through a first-stage motor and a second-stage motor which are independently arranged, two caterpillar bands can be driven, the caterpillar bands can be conveniently, precisely and rapidly operated, operation is facilitated, stability and operation convenience of the chassis and the caterpillar bands of the crawler car can be improved, and safety in the operation process can be ensured.