53 results about "Block needle" patented technology

The invention mainly discloses a multifunctional lace crochet machine which comprises a power transmission device, a warp yarn mechanism, a weft yarn mechanism, a needle withdrawing mechanism, a needle blocking mechanism and a crossing mechanism. The needle blocking mechanism comprises a swing shaft, a blocking needle, a blocking needle drive arm and a needle blocking cam; one end of the needle blocking drive arm leans against the needle blocking cam driven by the power transmission device, and the other end of the needle blocking drive arm is fixedly connected with the swing shaft which rotates with the swing shaft of the needle blocking drive arm; and the swing shaft is fixedly connected with the blocking need which turns over inwards and outwards at the outer side of a needle bed with the swing shaft. The crossing mechanism comprises a weft yarn shaft, a swing arm, a shift fork and a floret chain transmission device, wherein the weft yarn shaft is mounted on the weft yarn mechanismand fixed with a weft yarn tube; the swing arm is fixedly sleeved on the weft yarn shaft; the shift form shifts the swing arm to swing; the floret chain transmission device supplies power to the shift fork; and a floret chainwheel in the floret chain transmission device is driven by the power transmission device. The multifunctional lace crochet machine disclosed by the invention is suitable for crocheting various flower forms, remarkably shortens the knitting time and has high production efficiency.

The invention relates to the field of glass bottle processing, and particularly relates to a residual heat recycling device. The device comprises a vent pipe, a heat collecting pipe, an ash tank communicated with the vent pipe, an air inlet and an air outlet, wherein the heat collecting pipe is positioned inside the vent pipe; a main filter screen is arranged in the smoke vent; the ash tank is positioned under the vent pipe; a rotary roller opposite to the air inlet is in rotating connection in the ash tank, and is provided with a fan blade; the rotary roller is coaxially connected with a crank shaft; a cleaning mechanism is in sliding connection with the side, far from the heat collecting pipe, of the main filter screen; a connecting rod is connected between the cleaning mechanism and thecrank shaft; two ends of the connecting rod are respectively in rotating connection on the cleaning mechanism and the crank shaft; a secondary filter screen opposite to the air outlet is arranged inthe ash tank; blocking needles are inserted in meshes of the secondary filter screen, and are connected with a press plate which enables the blocking needles to be drawn out from the meshes of the secondary filter screen; and a baffle is in sliding connection with the side, near the heat collecting pipe, of the main filter screen, and can be supported against the press plate.

Disclosed is a semi-conductor conveying device. A switching mechanism is arranged to switch the release of compressed air in a conveying track and perform vacuum pumping operation. Before a pick-up head moves forward to a pick-up position, semi-conductors are absorbed on the conveying track mainly through vacuum and are prevented from falling off; and when the pick-up head moves to a pick-up position, the vacuum absorption force is canceled, the semi-conductors at the front end are blown to a groove of the pick-up head through the compressed air, then the semi-conductors at the back end are absorbed to the conveying track through switching the compressed air to the vacuum absorption, and the pick-up head moves to an original position simultaneously. According to the device, a product blocking needle and a center trigger of the existing device are omitted, parts are saved, falling off waste of the semi-conductors is avoided, the production cost is reduced, simultaneously, operation of the semi-conductors is achieved through the switching function between the compressed air and the vacuum absorption, and the working efficiency is high.

Automatic pin punching equipment comprises a wire feeding mechanism, a wire cutting mechanism, a pin punching mechanism and a wire transferring mechanism, wherein the wire feeding mechanism comprises a wire feeding plate, a tension rod, a first wire clamp and a second wire clamp, and the first wire clamp and the second wire clamp are located under the tension rod at an interval; the wire cutting mechanism comprises an upper wire cutting block, a lower wire cutting block and a wire cutting platform, the upper wire cutting block, the lower wire cutting block and the wire cutting platform are sequentially arranged under the wire feeding mechanism, the lower wire cutting block is arranged between the upper wire cutting block and the wire cutting platform in a sliding mode, the upper wire cutting block and the lower wire cutting block are respectively provided with a through hole, the through holes are communicated with each other, a notch is formed in the communicating portion of the two through holes, and the wire cutting platform is provided with a blanking hole at the finishing point of the sliding route of the lower wire cutting block; the pin punching mechanism comprises a pin punching cylinder, a punching pin and a pin punching platform; the wire transferring mechanism comprises a material collecting tube, a thimble and a moving device, the side faces of the material collecting tube are provided with blocking holes communicated with each other, a blocking needle is arranged in the blocking holes in a sliding mode, and the moving device is in transmission connection with the material collecting tube. According to the automatic pin punching equipment, automatic pin punching of products can be achieved, efficiency is relatively high, quality of the products is good, and cost is low.

The invention provides a test path selection method which includes the first step of forming valid dies and invalid dies on an arranged wafer, the second step of forming a wafer mapping picture, the third step of marking the positions of the valid dies and the invalid dies on the wafer mapping picture according to the positions of the valid dies and the invalid dies, the fourth step of enabling multi-circuit-block needle card pictures to be arranged repeatedly on the dies of the wafer mapping picture and filling the wafer mapping picture, wherein the multi-circuit-block needle card pictures at least comprise a first needle card identification mark and a second needle card identification mark, the fifth step of eliminating the multi-circuit-block needle card pictures fully occupying the invalid dies on the wafer mapping picture and reserving the multi-circuit-block needle card pictures at least occupying one valid die, and the sixth step of enabling the dies corresponding to the first identification marks in each multi-circuit-block needle card picture reserved on the wafer mapping picture to be connected into a straight line, and obtaining a test path. The invention further provides a wafer test method. The test path selection method and the corresponding wafer test method shorten the distance of needle card displacement in the testing process, save needle card displacement time, and improve testing efficiency of wafers.

The invention discloses a method for knitting bath towel cloth and the bath towel cloth which is durable and soft in fabric. The bath towel cloth is knitted by a crochet machine. The method for knitting the bath towel cloth comprises the steps that a plurality of bottom threads are distributed at intervals uniformly and parallelly, a bottom needle and a surface needle pass through three needle tubes on the crochet machine, a blocking needle performs knitting on the bottom threads, the bottom needle is positioned between the two connected bottom threads to perform cross-shaped knitting on the two adjacent bottom threads through the needle tubes, the blocking needle does not move and performs knitting of the surface needle, and the surface needle is wound on the two adjacent bottom threads.

A control method of a stepping motor is used for controlling the stepping motor of a dashboard. The control method of the stepping motor comprises the following steps of enabling the stepping motor to rotate a first angle to the origin of the dashboard through a full torque mode; enabling the stepping motor to rotate a second angle to the origin through a first torque mode, wherein the first torque mode is a first attenuation amount of the full torque mode, and the first attenuation amount is the minimum attenuation amount for continue rotation of the stepping motor; and enabling the stepping motor to rotate a third angle to the origin through a second torque mode, wherein the second torque mode is a second attenuation amount of the first torque mode, and the second attenuation amount is the minimum attenuation amount of continue rotation for the stepping motor. According to the control method of the stepping motor, a failure of returning to zero caused by too big strength of a pointer impacting a block needle and a failure of returning to zero caused by a big pointer reversing when the power is cut off can be avoided, and smooth operation of the pointer can be realized under the condition that the cost is not increased.

The invention relates to an ultrasonic retardation needle with a good developing effect. The ultrasonic retardation needle comprises a puncture needle, a developing core is arranged in the puncture needle in a penetrating manner; a fixing assembly is used for fixing the developing core and the puncture needle together; the developing core is provided with a developing cavity; the inside of the developing cavity is vacuum; the developing core and the puncture needle are fixed together through the fixing assembly, when the puncture needle enters a human body, the developing core enters the human body along with the puncture needle, and due to the fact that sound waves in vacuum cannot be conducted, when the position of the retardation needle is detected through ultrasound, the developing core provided with the developing cavity with the vacuum interior can improve the developing effect of the ultrasound blocking needle; and therefore, the positioning of the ultrasonic retardation needle is more accurate.

The invention discloses a spinning apparatus with a circular extruding function and belongs to the technical field of electrostatic spinning. The spinning apparatus comprises a mounting box; an injection pipe is fixedly communicated with the top center of the mounting box; the bottom of the mounting box is fixedly communicated with a plurality of needles; the top of the mounting box is fixedly connected with cleaning mechanisms corresponding to the needles; the cleaning mechanisms comprises an ejector pin coaxial to the needles, a fixing box and a linear driving device, the fixing boxes are fixedly connected with the top of the mounting box, the linear driving devices comprise a fixed end and a moving end, the fixed ends of the linear driving devices are fixedly connected with the tops ofthe fixing boxes, the ejector pins are positioned in the fixing boxes, the tops of the ejector pins are fixedly connected with the moving ends of the linear driving devices, and the bottoms of the ejector pins are extended into the mounting box. The spinning apparatus has the advantages that the blocked needles can be automatically cleaned; stopping the apparatus during cleaning is not required, so that labor intensity is reduced for workers and production efficiency is improved.

A control method of a stepping motor is used for controlling the stepping motor of a dashboard. The control method of the stepping motor comprises the following steps of enabling the stepping motor to rotate a first angle to the origin of the dashboard through a full torque mode; enabling the stepping motor to rotate a second angle to the origin through a first torque mode, wherein the first torque mode is a first attenuation amount of the full torque mode, and the first attenuation amount is the minimum attenuation amount for continue rotation of the stepping motor; and enabling the stepping motor to rotate a third angle to the origin through a second torque mode, wherein the second torque mode is a second attenuation amount of the first torque mode, and the second attenuation amount is the minimum attenuation amount of continue rotation for the stepping motor. According to the control method of the stepping motor, a failure of returning to zero caused by too big strength of a pointer impacting a block needle and a failure of returning to zero caused by a big pointer reversing when the power is cut off can be avoided, and smooth operation of the pointer can be realized under the condition that the cost is not increased.

The invention discloses a duplication dynamics automatic adjustment structure assembly of a stylus printer. The duplication dynamics automatic adjustment structure assembly of the stylus printer comprises a support and a paper-thickness regulating shaft of an eccentric shaft, wherein one end of the paper-thickness penetrates through the support, and then a paper-thickness slection lever is fixedly installed at a tail end of the paper-thickness regulating shaft. The paper-thickness selection lever is in a sector structure, and a surface of the selection lever is divided into an inner sector shape and an outer sector shape. File position teeth are arranged on one end surface of the inner sector shape along diameter direction of the inner sector. Blocking needles locked in the file position teeth are arranged on the support. A U-shaped photo-electricity sensor is installed on the end surface of the support nearby the paper-thickness selection lever. Blocking slices capable of sheltering beams of the U-shaped photo-electricity sensor are arranged on the paper-thickness selection lever. A duplication dynamics state of the automatic adjustment stylus printer is capable of abandoning a duplication dynamics adjustment manner of manually regulating the duplication dynamics through a panel press button in the traditional technology. The duplication dynamics automatic adjustment structure assembly of the stylus printer is simple in structure, reasonable and compact, saving in bill material and high in printing efficiency.

The invention discloses siphoning type essential oil atomization aromatherapy equipment which comprises an upper cover and a base, wherein a motor is installed inside the upper cover; an air outlet of the motor is connected with an atomization chamber; and a first electromagnetic iron is arranged at the top of the atomization chamber. An essential oil storage device is installed on the base; the lower part of an essential oil tube is positioned inside the essential oil storage device; the upper part of the essential oil tube is positioned in the atomization chamber; and a first anti-block needle is installed at the tail end on the upper part of the essential oil tube in an interference fit mode. By utilizing the siphoning type essential oil atomization aromatherapy equipment, the essential oil is atomized in a siphoning mode, the essential oil components are uniformly diffused, and the purity of the essential oil grains diffused out is ensured to the maximum extent.