51results about How to "Guaranteed to be tight" patented technology

The invention discloses a tensioning and feeding mechanism and an ink jet printer. The tensioning and feeding mechanism comprises a rotatable material discharging roller unit and a material receivingroller unit. A tensioning unit is arranged between the material discharging roller unit and the material receiving roller unit and comprises a main roller and an auxiliary roller. The main roller is rotatably arranged to drive material conveying. Resistance members are arranged at intervals on the main roller and exert resistance to hinder materials from traveling. The tensioning and feeding mechanism and the ink jet printer ensure that the materials can be always kept tensioned and tight in the conveying process without wrinkling, skidding or deviating.

The invention relates to an automatic-feeding lathe tailstock mechanism. The automatic-feeding lathe tailstock mechanism comprises a frame body and a driving mechanism and a pushing mechanism which are installed on the frame body; the driving mechanism and the pushing mechanism are linked through pushing fork rods, the driving mechanism is driven by a power device and drives a drill bit to act, and the driving mechanism can drive a driving gear to conduct forward rotation and reverse rotation; the pushing mechanism comprises a pushing rod which is arranged in a sliding mode, and the two pushing fork rods are located on the out sides of the two ends of the driving gear respectively; one end of a driving shaft is provided with a screw, and a thread sleeve connected with a curved rod is connected to the screw in a sleeving mode; an oscillating rod is connected with the pushing rod through a first rotating shaft and connected with a chain rod through a second rotating shaft, and the oscillating rod rotates through a third rotating shaft; the two ends of a chain are connected with the free end of the chain rod and the free end of the curved rod, and the free end of the chain rod and the free end of the curved rod can be in butt joint; one end of a first spring is fixedly connected to the portion, located on the position of the second rotating shaft, of the oscillating rod, and the other end of the first spring is fixedly connected to a fixing block; the pushing rod is further provided with a protruding block, and the protruding block is linked with a stopping mechanism.

The invention belongs to the technical field of material screening, and particularly relates to a vibration sieve and a method for adopting thick glue to compress and tighten a screen. A sieve frame,a screen, a screen frame and a vibration body are included. Locking discs are arranged on the edge of the sieve frame and the edge of the vibration body. The screen is laid on the screen frame, and the edge of the screen is tightly pressed below the sieve frame locking disc. The sieve frame, the screen frame, the screen and the vibration body are fixed together at the outer portion through fasteners. The vibration sieve and the method for adopting the thick glue to compress and tighten the screen are characterized in that elastic pieces with upper and lower elasticity are further included, andthe elastic pieces are arranged below the part, above the vibration body locking disc, of the screen. According to the vibration sieve and the method, the screen can be tightened directly through locking of the fasteners at the outer portion, and operation is simple and convenient.

The invention discloses a movement speed and displacement integrated testing device and method of a cable arranging device. The testing device comprises a supporting seat, a coil spring, a rope storing drum, a supporting shaft, a testing gear and a two-way hall switch, wherein the supporting shaft is mounted on a bracket, and the rope storing drum is mounted on the supporting shaft through a bearing; one end of the coil spring is fixedly connected with the bracket, and the other end of the coil spring is fixed to the rope storing drum; the testing gear which is coaxially fixedly mounted on the rope storing drum; the two-way hall switch corresponding to the testing gear is mounted on the bracket, and an axis of the two-way hall switch passes through the center of the gear; a steel wire rope end head locking device corresponding to the rope storing drum is arranged on the bracket. According to the testing device, the movement speed and displacement are measured in a way of pulling a coiling drum to test the contact mode of a steel wire rope, so that the measurement moving range is wide; a vortex type coil spring is arranged and can provide a certain tensioning force and returning force so as to ensure that the testing steel wire rope is tensioned as well as avoid disordering of the rope, and as a result, the tracking measuring accuracy is high.

The invention discloses an automatic metal surface treatment device which comprises a left vertical plate, a right vertical plate, a beam plate, a carrier plate, a base plate, a clamp base, a pressing-down mechanism and an abrasive belt. The left vertical plate and the right vertical plate are arranged in parallel. The beam plate is in bridging connection with the left vertical plate and the rightvertical plate. An output shaft of a motor is provided with a driving wheel, the driving wheel is in transmission connection with a driving auxiliary wheel through a belt, an air cylinder is vertically installed on the front surface of an installation plate, a piston rod of the air cylinder is fixedly connected with a pressing-down plate, a middle shaft is sleeved with a left fixing ring and a right fixing ring from the two ends of a supporting sleeve, the left fixing ring and the right fixing ring make close contact with the two end faces of the supporting sleeve correspondingly, and the supporting sleeve is sleeved with a circular pipe which is fixed through the left fixing ring and the right fixing ring. Straight wiredrawing operation of the metal surface can be automatically achieved,wiredrawing straightness, wire flow uniformity and wiredrawing efficiency are improved, the wiredrawing quality of the metal circular pipe is ensured, and the rate of finished products is improved.

The invention discloses and provides a glue overflowing wire automatic glue wiping machine after gluing of a mobile terminal equipment display module, which is simple in structure, excellent in wipingstability, excellent in effect and high in wiping efficiency. The machine comprises a carrier module and a glue wiping module; the carrier module comprises a carrier, and a vertical rotating shaft cooperating with the carrier; the glue wiping module comprises a mounting plate aslant arranged; the mounting plate is downwards aligned to the carrier; a glue wiping wheel is arranged at the tail end of the mounting plate; a winding wheel and an unwinding wheel are arranged on the two sides of the mounting plate; a strip is connected between the winding wheel and the unwinding wheel, and is bypassed through the glue wiping wheel; and the glue wiping module further comprises a transverse rotating shaft cooperating with the mounting plate. The machine can be applied to the technical field of gluewiping machines.

The invention discloses a wire fixing jig, and relates to the technical field of wire processing molds. The wire fixing jig comprises a wire guide assembly and a wire clamp assembly. The wire guide assembly and the wire clamp assembly are connected with each other, the wire guide assembly comprises a wire guide base plate, the wire clamp assembly comprises a wire clamp base plate, and one end of the wire guide base plate is connected with an end of the wire clamp base plate; a slider is slidably mounted at the other end of the wire guide base plate, the sliding direction of the slider is consistent with the extending direction of the wire guide base plate, a clamp portion which is used for clamping a wire distributor for wires is arranged on the slider, and at least two wire distributing columns are arranged in the middle of the wire guide base plate; two wire clamp plates are respectively hinged to two ends of the wire clamp base plate, and the wires can be clamped between the wire clamp base plate and the wire clamp plates by the two wire clamp plates. The wire fixing jig has the advantages that the wire fixing jig is simple in structure and convenient to use, and the wires can be reliably fixed by the aid of the wire fixing jig and can be prevented from being damaged; the wire fixing jig is suitable for assembly line work, and the production efficiency of products can be effectively improved.

The invention discloses silk cloth ironing equipment with a compensation function for garment production, and belongs to the technical field of garment processing equipment. The silk cloth ironing equipment comprises a workbench, a rack, an ironing device, a discharging roller and a receiving roller, wherein the receiving roller, the rack and the discharging roller are sequentially mounted on the outer wall of the top of the workbench; the inner wall of the top of the rack is fixedly connected with the ironing device through an electric telescopic rod; and a compensation device is arranged on the outer wall of the left side of the rack. In the device, air in an air bag is extruded, so that the air bag is raised and drives a guide roller to move downwards; the guide roller continues to apply pressure to drooping cloth, so that it is guaranteed that the drooping cloth continues to be tightened; and the extending cloth is compensated, so that the situation that the cloth below the ironing device cannot be moved away by the receiving roller according to the specified time due to the fact that the cloth extends and droops is avoided, the cloth ironing time is prevented from being prolonged, and the probability that the silk cloth is damaged is reduced.

The invention particularly relates to a reinforced concrete steam turbine platform beam bolt casing pipe top template construction method which is characterized by including (1) a step of installing a steam turbine platform beam bottom template, (2) a step of manufacturing a circular template, (3) a step of flicking lines and lofting, (4) a step of fixing the circular template, (5) a step of conducting platform beam steel bar and template construction, installing longitudinal steel bar and transverse steel bars by avoiding the circular template according to a position of the installed circular template in the process of installation of the steel bars, installing a side template of a platform beam and an edge template of a reserved opening after installation of the steel bars are examined and received, (6) a step of installing bolt casing pipes, (7) a step of pouring concrete, (8) a step of vibrating and pounding the concrete, and (9) a step of removing the templates, and then removing the steam turbine platform beam side template and the bottom template after strength grade of the concrete meets requirements of the design, wherein the circular template can automatically drop along with the bottom template and the bolt casing pipes are communicated. The circular template is simple in structure, convenient to manufacture and install, low in cost and convenient to construct. The bolt casing pipes are high in installation accuracy.

The invention discloses a belt cutting machine. The belt cutting machine comprises a belt releasing disc, a first belt collecting disc, a second belt collecting disc and a cutter with teeth, wherein the belt releasing disc is located at a feeding end of a machine frame, the first belt collecting disc and the second belt collecting disc are located at a discharging end of the machine frame and jointly utilize the same rotation shaft, and the cutter with the teeth is fixed to the machine frame in a rotary mode through a transmission shaft. According to the belt cutting machine, the two belt collecting discs are used for recycling cut wrapping belts, so that the wrapping belts are guaranteed to be always tensioned before and after being cut. In addition, the cutter with the teeth is used for cutting materials, so that the cutter with the teeth can smoothly cut the wrapping belts, and the edges of the materials are guaranteed to be flat after the materials are cut.

The invention discloses a device with a well tightened conveyor belt. The device comprises a conveyor belt body (1); a first roller (2), a second roller (3) and a third roller (4) are mounted at the top of the conveyor belt body (1); the first roller (2), the second roller (3) and the third roller (4) are arranged triangularly; the first roller (2) and the second roller (3) are located in the same straight line of the horizontal plane and under the third roller (4); the third roller (4) is capable of moving up and down. Due to such a structure, the device is capable of guaranteeing that the conveyor belt is still in the tightened state after being used repeatedly, thereby ensuring the conveying speed of the conveyor belt.

The invention discloses an embroidery machine for spinning and a using method in the technical field of textile equipment. The embroidery machine comprises a shell, wherein a sliding groove is formedin the transverse center axis of the top end of an inner cavity of the shell, a supporting bearing is arranged at the upper end of the longitudinal center axis of the left side face of the inner cavity of the shell, a threaded rod is installed in an inner cavity of the supporting bearing, the right end of the threaded rod penetrates through the upper portion of a right side panel of the shell to the right side of the shell, a rotating bearing is arranged on the upper portion of the central axis of the right side panel of the shell, the inner ring of the rotating bearing is connected with the threaded rod in a sleeving mode, a disc is arranged at the right end of the threaded rod, a rocker is arranged on the upper end face of the disc, a sleeve sleeves the left side of the outer portion ofthe threaded rod, a sliding block is arranged on the upper end face of the sleeve, the sliding block is arranged on the left side of an inner cavity of the slide groove, a driving motor is arranged inthe middle of a left side panel of the inner cavity of the shell, a belt wheel is arranged in the middle of a motor shaft of the driving motor, and a driving gear is movably connected to the front end face and the rear end face of the inner cavity of the shell. The embroidering machine is simple in structure and convenient to operate, the embroidering efficiency can be effectively improved, and the embroidering quality of textile fabrics can be improved.

The invention discloses a hydraulic control system of a low-density material transportation semitrailer. The rear door opening and closing oil cylinder is used for controlling a rear door opening and closing of the low-density material transportation semitrailer, the roller hydraulic motor is used for controlling a discharging roller of the low-density material transportation semitrailer to rotate, the winch hydraulic motor is used for controlling a discharging push plate of the low-density material transportation semitrailer to return, and the oil cylinder is used for controlling the rear door opening and closing. The hydraulic oil pump and the hydraulic oil tank are used for providing power for the whole hydraulic control system. The hydraulic system has the advantages of simplicity in control, low manufacturing cost and capability of well solving the problems of heating and system faults of the hydraulic system.