44results about How to "Neat fracture" patented technology

The invention relates to a wide zero-speed material replacing and splicing system capable of reliably splicing a wide material of 600-1100 mm in a high-speed state and a replacing and splicing method. The wide zero-speed material replacing and splicing system comprises material splicing devices, material cutting devices and material pressing devices which are all formed by combining an inner air cylinder, an outer air cylinder, two linear bearings and a guide rod, wherein the guide rod is connected with a pressing plate through a floating joint, and the material splicing devices, the material cutting devices and the material pressing devices are symmetrically arranged. The invention has the advantages that: (1) a material cutting mode is carried out by pressing the pressing plate on the front and the back of the material, cutting the material from the middle with a cutter and wrapping rubber at the front end of the pressing plate to be pressed more compactly so as to easily cut different materials and have neat fractures; (2) all actions in the splicing process are finished by the air cylinders, an electromagnetic valve is controlled to switch on or off by a PLC (Programmable Logic Controller) so as to rapidly finish the whole splicing process and meet the need for high-speed production; and (3) the system is convenient to operate and good in safety, and the wide material can be spliced in the high-speed state.

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 discloses a paper breaking and rewinding method for a rewinder. Its main feature is that when the core tube is just pressed against the rewinding upper roll, the rewinding upper roll is prevented from driving the core tube to roll, so that the paper The paper at the end of the roll is stretched and broken. After the paper is broken, the barrier is removed, so that the paper head formed after the paper is broken is wound on the rolling core tube to form a new paper roll. The invention also discloses a rewinder capable of realizing the above method. The rewinder is provided with a core tube damping mechanism at the entrance of the core tube channel. The advantage of the present invention is that only after the paper at the tail of the paper roll is broken, the core tube pressed against the rewinding upper roller can roll along the core tube channel, thereby ensuring that the paper at the tail of the paper roll can be reliably broken, and at the same time It avoids the uneven stress on the paper at the end of the paper roll caused by the rolling of the core tube, and the paper breaks are neat.

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 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 relates to a combined container comprising a plurality of individual containers (11), each of which is formed from a plastic sheet (L) comprising at least one layer of PET (polyethylene terephthalate) Each independent storage box (11) is connected by a connecting bridge (12), and an upper pre-cutting line (13) and a lower pre-cutting line (14) for disconnecting the connecting bridge are arranged on the connecting bridge. The upper pre-cutting line (13) and the lower pre-cutting line (14) are horizontally parallel and spaced laterally, and are spaced from each other in the vertical direction, so as to avoid changes in the properties of the PET layer when the heat of compression is too high. Rotating the holding box at the upper and lower pre-cut lines can neatly disconnect the connecting bridge. The invention also provides a device for manufacturing the combined storage box.

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 discloses a metal sheet cutting machine, which includes an automatic feeding part and a cutting part. The automatic feeding part is driven by a servo motor through a synchronous wheel and a synchronous belt to drive the feeding rubber roller and the pressing roller to rotate precisely according to the feeding length; The metal flakes in the middle are accurately conveyed forward under the guidance of the feeding guide assembly to complete the automatic feeding function of the cutting machine. The cutting parts are powered by the motor, and after being driven by the synchronous wheel and synchronous belt, the eccentric wheel on the transmission shaft is driven to rotate, and the eccentric The movement acts on the frame body through the bearing transmission, and at the same time, under the guidance of the guide assembly, it finally drives the cutter to move up and down in a straight line, thereby cutting off the metal sheet. The invention can automatically feed and cut a plurality of thin metal strips at the same time, has high working efficiency, easy installation of knives, high length precision after cutting, and neat fractures.

The invention provides a cable mandrel cutting machine, belonging to the field of cutting and aiming to solve the problem of inaccurate cutting precision of the existing cable mandrel. The cable mandrel cutting machine comprises a stand, a conveying structure, a control system and a cutting structure; the cutting structure comprises electrodes, a first air cylinder, a second air cylinder, a first crowbar and a second crowbar; the first air cylinder and the second air cylinder are arranged on two sides of the electrodes; the electrodes comprise an upper electrode and a lower electrode; and the lower electrode is fixedly connected on the stand. Due to the arrangement of the cutting structure of the cable mandrel cutting machine, the cable mandrel can be cut by fusing by the instantaneous high current, good cable mandrel cutting effect can be achieved, and the fracture of the cable mandrel is neat without burrs. The cable mandrel cutting machine is convenient to use and has high precision.