54results about How to "Uniform force balance" patented technology

A producing method of a shuttlecock includes the following steps: step a, molding a flocking frame provided with a group of flocking bars and a group of flocking tubes integrated with the flocking bars; step b, arranging the flocking frame at a fixed ball head; and step c, flocking flocked ends of a group of feathers into corresponding flocking tubes to produce the shuttlecock. According to the producing method, machines are used for operation, therefore the producing efficiency of the shuttlecocks is improved; and the produced shuttlecock is provided with molded flocking frames, therefore the shuttlecock has good uniformity, and the quality of the shuttlecock is guaranteed.

The invention discloses a manufacturing method of badmintons. The method comprises the following steps of: (a) molding a flocking shelf with a group of flocking rods and a group of flocking tubes, wherein each flocking tube is respectively and integrally formed at one end of a corresponding flocking rod; (b) installing the flocking shelf at a fixed ball head; and (c) respectively implanting the inserting heads of a group feather blades into corresponding flocking tubes; or after inserting the feather blades into the flocking shelf, the flocking shelf with the feather blades is installed on the ball head. The method further comprises a step (d) that natural feather is cut according to the demands of a cutting model to obtain the feather blades. According to the method, machines are engaged to operate, the production efficiency of the badminton is improved, and the manufactured badminton has a molded flocking shelf, so that stable and accordant conical degree is formed for the badmintons, and the badminton quality is ensured.

The invention discloses a traction/locking element, a traction/locking set, an orthodontic bracket, an orthodontic bracket system and a tooth orthodontic method. The traction/locking element comprises a strip-shaped nail body, wherein the area of the cross section of the nail body is 0.06-2.5 square millimeters, and the length of the nail body is 0.8-4.5 millimeters; the front end of the nail body is a first fixed end, and the rear end of the nail body is a first screwing end; the first fixed end is provided with a connecting external thread, and the external diameter of the connecting external thread is 0.2-1.6 millimeters; and at least the end position of the first screwing end is provided with a first force application surface. The invention aims at overcoming the defects of the prior art; the traction/locking element can be used for carrying out traction in time according to the traction opportunity of tooth orthodontics, thereby reducing the discomfort of the oral cavity; and the traction/locking element is very convenient to install and disassemble and is very reliable in traction of teeth.

The compressed packer has one seat sealing mechanism comprising one locking sleeve, one locking ring, one locking ring seat and one central pipe. Inside the locking ring seat, there are wedged locking blocks with outer surface matching the inner conic surface of the locking ring, locking block support sleeve to hold the locking blocks inside the holes of the locking ring seat, return springs, and limit stops. The central pipe has steps for pushing the limit stops to shift upwards. The compressed packer has rigid wedged locking block to replace elastic support pawls, and possesses stable and reliable seat sealing, flexible smooth and reliable locking block desterilizing, and flushing path between the central pipe and the locking block support sleeve for flushing job.

The invention relates to the technical field of a mechanical shock absorption device, in particular to a pneumatic rubber shock absorption spring. The pneumatic rubber shock absorption spring comprises a spring body, compression units and an installing hole, wherein the spring body is connected in series for forming an integral structure by the compression units, the installing hole is positioned in the axis of the spring body, and an air bag and an air passage are arranged in each compression unit. The air bag and the air passage are respectively arranged in each compression unit, air is stored in each air bag, during the shock absorption, the smoothness is good, a good energy absorption buffer effect can be achieved, support plates arranged at the two ends of the spring body can realize the uniform and balanced stress, and the shock absorption effect is greatly improved.

The invention provides a main and auxiliary multi-top injection molding top mold mechanism, which includes a movable template, an ejection cylinder, a support rod, an ejector plate, and an ejector rod, and the ejector plate is connected with an ejector rod passing through the movable template , characterized in that: the movable template is provided with ribs, the ribs are parallel to the main body of the movable template, the ejector plate is located between the ribs and the main body of the movable template, the support rod passes through the ejector plate, The two ends are fixedly connected to the rib plate and the main body of the movable formwork respectively. The ejection cylinder includes a main ejection cylinder and an auxiliary ejection cylinder. The main ejection cylinder is directly connected to the rib plate, and its piston rod is connected to the ejector plate. connected, the auxiliary ejector cylinder is installed on the main body of the movable template, and its piston rod is also connected with the ejector plate. The ejector mold mechanism has sufficient strength and rigidity, and the ejection force is large and uniform, so that the force on the mold is evenly balanced, which can prolong the service life of the mold and effectively improve production efficiency and product qualification rate.

The invention discloses a blast furnace replacement large sleeve drawing device. The device comprises a car body moving mechanism, a support base, a support beam, a length adjusting mechanism, handles, hook heads, a fixed rod, a spiral press and a mobile hook head support mechanism; a mounting platform is formed on the top surface of the car body moving mechanism; the support base is arranged on the mounting platform; the length adjusting mechanism is connected with the tail ends of the hook heads, and can adjust the length in the horizontal direction; two handles are respectively arranged on the outer sides of two hook heads; one end of the fixed rod is connected with the tail part of the length adjusting mechanism, and the other end penetrates through empty areas of the handles; the spiral press is positioned between the support beam and the mobile support base; the mobile hook head support mechanism is slidingly arranged between rod parts of two hook heads; and the two hook heads are connected with the length adjusting structure after penetrating through holes in the support beam and the support base in sequence. The blast furnace replacement large sleeve drawing device has the advantages of small size, long service life, flexible adjustment and low cost.

The invention discloses an improved structure of a clamping device. The clamping device comprises an outer ring and an inner ring, the inner ring is located in the outer ring, and the outer ring and the inner ring are concentric rings. The outer ring and the inner ring are fixedly connected through connecting rods. The inner ring is provided with at least one threaded through hole, and a bolt is arranged in each threaded through hole in a matched mode. The outer ring is provided with a through hole, one end of a cover plate is hinged to the inner wall of the through hole, a protruding piece is arranged at the other end of the cover plate and provided with a fixing through hole, the outer ring is provided with a groove matched with the protruding piece, and a threaded hole matched with the fixing through hole is formed in the bottom of the groove. The cover plate is fixed to the outer ring through matching of a bolt I and the threaded hole, and the through hole corresponds to the bolts. By means of the improved structure of the clamping device, the problem that an existing clamping structure is not convenient to operate.

The invention discloses a method for reducing overflow in injection molding of an IPM (Intelligent Power Module) and a DBC substrate. The method changes an island design on the DBC substrate and enables the DBC substrate to be balanced in stress in the injection molding process. In addition, a wedge-shaped table structure is designed on a DBC back copper layer at the back of the DBC substrate, a buffer table for the flow rate of an injection molding material at the back of the DBC substrate is formed, and the injection molding material overflowed towards the back of the DBC substrate is reduced under a condition that the DBC substrate is uneven. According to the invention, the method of reducing the overflow through changing the DBC design idea is adopted to replace a laser burr removing process, the production efficiency is improved, and the production cost and technological input are reduced.

The invention provides a vibration absorber for a precise mechanical equipment, which comprises four groups of flexible units in cross layout. An upper plate and a lower plate are respectively connected with an upper contact surface and a lower contact surface of the four groups of flexible units to form an interlayer structure; the flexible unit comprises four pressure bearing blocks, a plurality of rubber blocks and two double bevel connecting blocks in X-shape layout. Therefore, due to simple structure, average and balanced stress for the symmetric structure of two layers, stable rigidity for the cross arrangement structure for the flexible unit, the invention has excellent vibration isolation effect in six directions.

The invention relates to the field of building construction, in particular to an overhang structure support system. The system comprises supporting columns arranged on the two sides of a building body, overhang beams are fixedly arranged on the sides, close to each other, of the two supporting columns, a supporting assembly is arranged between the two overhang beams, and the supporting assembly comprises a fixing block, supporting rods and abutting blocks. The two supporting rods and the two abutting blocks are in one-to-one correspondence, the ends, close to each other, of the two supporting rods are inserted into the fixing block, the two abutting blocks are fixedly arranged at the ends, away from each other, of the two supporting rods respectively and tightly abut against the two overhang beams respectively, and the fixing block is rotatably connected with a gear. The two supporting rods are located on the two sides of the gear respectively, racks are fixedly arranged on the sides, close to the gear, of the two supporting rods, the length direction of the racks is the same as that of the supporting rods, and the racks are meshed with the gear. The support system has the advantage that a supporting structure is more convenient to mount and demount.

The invention belongs to the technical field of electronic component manufacturing, and particularly discloses a steady resistance wire clamping device. The steady resistance wire clamping device comprises a left chuck, a right chuck and a left chuck cylinder, the right chuck and the left chunk are connected through one end of a same rotation shaft, the other end of the rotation shaft is provided with a balancing weight, and the weight of the balancing weight is equal to the total weight of the left chunk and the right chunk. Through design of the balancing weight, the stress of the two ends of the rotation shaft is balanced and uniform; when the rotating rotation shaft drives the resistance wire clamping device to move, the resistance wire clamping device is stresses uniformly, and deviation cannot be caused; meanwhile, the stress of the rotation shaft is uniform, and the working life of the device is prolonged.

The invention discloses a multistage heat pump compressor. The multistage heat pump compressor comprises a closed shell, a separation assembly, a driver and at least two pressurizing mechanisms, the separation assembly is arranged in the closed shell and separates the closed shell into a first chamber and a second chamber which are mutually separated, and the first chamber is formed in the second chamber; the driver includes a body and a transmission shaft penetrating through the body, the body is accommodated in the first chamber, and the transmission shaft penetrates into the second chamber; and each of the pressurizing mechanisms is accommodated in the second chamber and is connected with the transmission shaft, and the pressurizing mechanisms are formed at two sides of the body to be driven by the driver to rotate. The bearing of the transmission shaft is uniform, so the rotation stability of the transmission shaft is improved and the noise is reduced, thereby the work efficiency of the compressor is enhanced.

The invention discloses a multi-protection interlocking mechanism for an inflatable cabinet, which belongs to the technical field of switch cabinets and comprises a cabinet body, an operation panel, an interlocking mechanism and a cabinet door. A load switch operating shaft rotates, and the interlocking mechanism drives a grounding switch shielding plate to keep away from or shield the grounding switch operating shaft. The grounding switch operating shaft rotates, and the load switch shielding plate is driven by the interlocking mechanism to avoid or shield the load switch operating shaft; andthe operation panel is provided with a load switch operation hole and a grounding switch operation hole, and the operation panel is provided with a shielding lock catch assembly for shielding or avoiding the load switch operation hole and the grounding switch operation hole. The shielding lock catch assembly shields or avoids the load switch operation hole and the grounding switch operation hole,achieves two-layer protection, guarantees the operation reliability and safety of the gas insulated switchgear, and effectively avoids the problems of frequent faults and even personal and equipmentsafety accidents. The structure is simple, operation is convenient, and implementation is easy.