44results about How to "Neat fracture" patented technology

The invention relates to a tool for cutting and breaking an ampule. The tool comprises a body (1), grinding wheels (4), a screw (2), a rubber gasket (3) and a rubber cover plate (5), wherein a plurality of grinding wheels (4) with center holes are fixed in a groove of the body (1), and the inside cutting edges of the grinding wheels (4) are exposed in the position of an inner hole (a) of the body (1); the rubber gasket (3) and the rubber cover plate (5) are propped against upper planes and lower planes of the grinding wheels (4) respectively; one circular truncated cone-shaped breaking hole (b) used for breaking the ampule is formed between every two grinding wheels; the body (1) can be held by a hand and rotates by one third of a circumference, and then full circular arc cutting of the ampule at angle of 360 degrees is realized; and the ampule breaking holes are used for breaking the ampule, so that the ampule can be broken easily, and the condition that fingers of a nurse are scratched by broken glass pieces when the nurse breaks the ampule with hands is avoided. Two actions of scratching and breaking of the ampule can be continuously finished, the operation is simple, the use is safe, time and labor are saved, and the labor intensity of the nurse is reduced.

The invention discloses a winding device for improving the appearance of a cast film. The winding device sequentially comprises an extruder, a melt filter, a die head, a cooling roller, a transition roller, a thickness gauge, a side cutting station, a corona device, a storage mechanism, a tensioning roller, a sliding cutter, a winding compression roller, a film winding shaft and a winding shaft frame from left to right. The cooling roller is located under the die head, the linear speed of the cooling roller is the same as that of the transition roller, and tension sensors are arranged at the two ends of the storage mechanism. By improving the operation method of a winding system of a cast film production line, the aims that the effect that a wound pipe bottom film is free of lotus leaf edges, wrinkles and bubbles is achieved, the winding quality is improved, the film quality is improved, and waste of the pipe bottom film is reduced are achieved.

The invention discloses a metal sheet cutting off machine which comprises an automatic feeding component and a cutting off component, wherein the automatic feeding component is transmitted through a synchronous wheel synchronous belt by a servo motor, and a feeding rubber roll and a press roll are driven to precisely rotate according to the feeding length; metal sheet strips pressed between the feeding rubber roll and the press roll are precisely transported forwards under the guidance of a feeding guide component, so that the automatic feeding function of the cutting off machine is achieved; a motor provides powder for the cutting off component; under the transmission of a circle-arc tooth synchronous belt and a transmission shaft side circle-arc tooth synchronous wheel, an eccentric wheel on a transmission shaft is driven to rotate to perform eccentric motion, and a bearing drives and acts on a frame body; and finally, a cutter is driven to perform rectilinear motion up and down under the guidance function of the guide component, so that the metal sheet strips are cut off. According to the metal sheet cutting off machine, a plurality of metal sheet strips can be automatically fed and cut off at the same time, the working efficiency is high, the cutter is easy to mount, the length accuracy is high after cutting, and the fracture is neat.

The invention discloses a toothed blade rotary cable cutting mechanism, which comprises a frame, an upper support frame is fixed on the top surface of the top plate of the frame, and vertical screw rods are arranged on both sides of the top plate of the upper support frame. The bottom end of the screw rod is hinged on the top plate of the frame, the top end of the vertical screw rod is hinged on the top plate of the upper support frame, the bottom end of the vertical screw rod is hinged on the top plate of the frame, and the two driving motors are fixed on the top plate of the upper support frame On both sides of the top surface, the output shaft of the driving motor is a spline shaft, and the spline shaft is inserted into the spline hole at the top of the vertical screw rod. The lifting plate is between the two vertical screw rods. A connecting block is fixed on the side, and the connecting block is screwed into the corresponding vertical screw. Two limiting blocks are fixed in the middle of the top surface of the lifting plate. There is a cutting through groove between the two limiting blocks. The middle part has threading through holes corresponding to the front and back. The invention can automatically cut the electric wires and cables, the fracture is neat, convenient for manual packaging and use, and has good effect.

The invention discloses a cut-off device of a metal sheet cut-off machine. The cut-off device of the metal sheet cut-off machine comprises a cut-off power driving assembly, a cut-off guiding part and a cut-off execution assembly; a motor provides power for the cut-off device integrally; an eccentric wheel on a driving shaft is driven to rotate through driving of synchronous wheels and a synchronous belt; eccentric movement acts on a framework through bearing driving; meanwhile, under the guiding action of the guiding part, a cutter is finally driven to perform vertical linear cut-off movement. By means of the cut-off device of the metal sheet cut-off machine, multiple metal sheets can be cut off at the same time; the cutter is convenient to mount; the work efficiency and cut-off size accuracy are high; cut notches are neat; manual assistance is not needed during cut-off action; control is simple; the cost is low.

The invention relates to a re-reeling machine capable of reliably and tidily cutting paper. The re-reeling machine comprises an upper re-reeling roller, a bottom re-reeling roller and a paper-pressing roller, which all rotate by clamping a paper scroll, wherein a cylindrical surface of the upper re-reeling roller and a fixed curved surface are close to each other, so as to form a core tube channel, and the cylindrical surface of the upper re-reeling roller is provided with a plurality of circles of smooth surfaces which are slightly protruded from a friction surface of a roller body. The re-reeling machine capable of reliably and tidily cutting paper has the advantages that a core tube cannot be immediately driven to roll by the upper re-reeling roller when the upper re-reeling roller is just pressed by the core tube, so that the paper sheet at the tail of the paper scroll can be reliably broken, the uneven stress on the paper sheet at the tail of the paper scroll caused by the rolling of the core tube is avoided, the fractures of the paper sheet are tidily, and furthermore, when the upper re-reeling roller, the bottom re-reeling roller and the paper-pressing roller all rotate by clamping the paper scroll, the friction surface of the upper re-reeling roller still can be in sufficient contact with the surface of the paper scroll and is not influenced by the smooth surfaces, so that the upper re-reeling roller can reliably rotate at high speed by clamping the paper scroll together with the bottom re-reeling roller and the paper-pressing roller.

The invention discloses a spent fuel rod cutting device and method. The spent fuel rod cutting device comprises a pipe cutter, a flow guiding cover, a pipe sleeve, a filter, a low-pressure blower and an ejector rod. Two holes are formed in the side wall of the flow guiding cover. The pipe cutter is arranged in the flow guiding cover. The flow guiding cover is connected with the pipe sleeve. The ejector rod and the flow guiding cover holes are on the same horizontal line. The filter is arranged between the flow guiding cover and the low-pressure blower. The spent fuel rod cutting method comprises the following steps that (1) all the components are connected, and the position height is adjusted; (2) the pipe cutter and a spent fuel rod are arranged in suitable positions; (3) cutting is conducted; and (4) a cutting port is sleeved with a protective sleeve. According to the spent fuel rod cutting device and method provided by the invention, remote operation can be conducted, the structure is simple, the occupied space is small, the reliability is high, cutting environment radioactive substance pollution diffusion can be effectively controlled, and the hot chamber operation cost is reduced.

The invention relates to processing equipment of jujun grass seedlings, and belongs to the technical field of animal husbandry machinery. A cutting mechanism is arranged on one side of a feeding mechanism, saw blades on the cutting mechanism are arranged between two material guiding discs arranged on the feeding mechanism, saw teeth of the saw blades at least stretch into the bottoms of material guiding grooves formed in the material guiding discs or coincide with the bottom edges of the material guiding grooves, the rotating direction of the saw blades is reverse to that of the material guiding discs, and the feeding mechanism feeds the jujun grass seedlings which are cut into segments into a material collecting groove through the cutting mechanism or outputs the jujun grass seedlings through a conveying mechanism. According to the jujun grass seedling preparing machine, the structure is simple, the processed jujun grass seedlings are uniform in fracture and identical in length, and mechanized planting is convenient; the processing labor intensity is low, and the efficiency is high; equipment safety protection is complete, and operation is safe and convenient. The jujun grass seedling preparing machine also can be used for processing seedlings of other rhizome plants and has the great application prospect.

The invention discloses a mining stemming machine convenient for material cutting. The machine comprises a machine body and a bearing plate. A machine base is arranged at the bottom end of the machinebody and fixedly connected with the machine body, a motor is arranged at the right end of the upper part of the machine base and fixedly connected with the machine base in a threaded connection manner, a speed reducer is arranged on the left side of the motor, and the speed reducer is fixed to the machine base in a screw joint manner. An installation base can move on the bearing plate through a sliding groove formed in the bearing plate, a return spring is arranged above a stemming cutting blade; after the stemming cutting blade is pressed downwards to cut off stemming, the return spring canautomatically retract the cutting blade, then the stemming cutting blade is more convenient to use, the cut of the stemming is more orderly after the stemming cutting blade passes through the stemming, a graduated bar is arranged on the bearing plate, stemming can be cut into sections more evenly through the graduated bar, the production quality and the production efficiency of the stemming are improved, and a user can cut the stemming into sections more conveniently.

The invention provides a conducting glass edge breaking device which comprises a first plugging board and a second plugging board, wherein the first plugging board and the second plugging board are arranged at the front and the back and are independent from each other, the first plugging board comprises a first plugging part, the second plugging board comprises a second plugging part, a first plugging slot for communicating the front end face and the rear end face of the first plugging part is formed in the first plugging part, a second plugging slot for communicating the front end face and the rear end face of the second plugging part is formed in the second plugging part, the second plugging slot corresponds to the first plugging slot, and after the to-be-broken conducting glass is plugging into the first plugging slot and the second plugging slot, when one scratch on the conducting glass is level with the rear end face of the first plugging part, the second plugging board is brokendownwards or upwards relative to the first plugging plate, and then the conducting glass is broken from the scratch. The device has the advantages of being convenient to use, and being capable of rapidly breaking the conducting glass into two parts, wherein the fracture is smooth and a conducting film is not damaged.

The invention relates to a combined containing box. The box comprises a plurality of independent containing boxes (11), each independent containing box is formed by a plastic plate (L) containing at least one PET layer (polyethylene glycol terephthalate), the independent containing boxes (11) are connected through a connecting bridge (12), and the connecting bridge is provided with an upper pre-cutting line (13) and a lower pre-cutting line (14) which are used for disconnecting the connecting bridge. The upper pre-cutting line (13) and the lower pre-cutting line (14) are parallel in the horizontal direction, are transversely spaced and are mutually spaced in the vertical direction, so that the situation that the characteristics of the PET layer are changed when the compression heat is toohigh is avoided, and meanwhile, the connecting bridge can be tidily disconnected by rotating the containing box at the positions of the upper pre-cutting line and the lower pre-cutting line. The invention further provides a device for manufacturing the combined containing box.