182 results about "Contact pressure" patented technology

The intelligent sensing and pressure self-adaption support pile system comprises a plurality of support pile bodies, a sensor network, a hydraulic servo adjusting system and an intelligent control unit. The support pile body is of a conventional foundation pit support pile structure, is prefabricated by reinforced concrete or is formed by cast-in-place, provides a basic support function and resists soil pressure; the sensor network is embedded into the support pile body and monitors the strain condition of each pile body in real time; the intelligent control unit calculates support parameters according to monitoring data of the sensor network and outputs a control instruction; and the hydraulic servo adjusting system automatically adjusts the contact pressure between the pile and the soil according to the control instruction. The system can monitor the stress state of a pile body in real time and automatically adjust supporting parameters through the hydraulic servo system, so that the safety and reliability of foundation pit engineering are remarkably improved.

The invention discloses a response test method and device for soil layer deformation and tunnel stress in foundation pit excavation, and relates to the technical field of underground engineering tests. The method comprises the following steps: acquiring engineering geology and tunnel structure parameters, and constructing a geological tunnel coupling similarity model embedded with a layered sensing array; step-by-step excavation is adopted to simulate foundation pit construction, and soil layer displacement strain, tunnel stress contact pressure and excavation disturbance parameters are synchronously collected through multiple channels; constructing a deformation stress coupling prediction model and an excavation disturbance quantification model; and constructing a dynamic coupling response model based on the two, and outputting a dynamic coupling curve of soil layer deformation and tunnel stress. The device comprises a model box body, a data processing host and a display terminal, a layered sensing array, a dynamic loading device, a servo excavation mechanism and a multi-channel data acquisition instrument are arranged in the box body, and the whole test process integrated operation can be realized. According to the method, the dynamic coupling rule can be accurately captured, and technical support is provided for safety assessment and parameter optimization of underground engineering construction.

The invention discloses a high-performance cast cold roll evaluation method based on stress of a working layer and a bonding layer, and belongs to the technical field of metallurgical mechanical equipment design and life evaluation, and the method comprises the following steps: calculating the maximum contact pressure between a working roll and a supporting roll and the flattening width of a contact surface; further determining the maximum shear stress in the working roll and the depth position corresponding to the shear stress; according to radius changes of the working roller in different wear stages, the maximum contact pressure and the contact surface flattening width in different wear stages are calculated for multiple times, and then normal stress at the position of a bonding layer in each stage and shear stress derived from the normal stress are calculated; performing simulation verification on calculation data based on a stress field of finite element simulation; comparing the shear stress of the bonding layer obtained after calculation with the total stress level after the residual stress is considered, and the allowable shear stress of the same material; and the risk is judged. The service life of the roller can be prolonged, and the equipment loss cost of cold-rolled strip steel production is reduced.

This invention discloses a grinding and polishing equipment and method for automotive parts, relating to the field of automotive parts processing. It includes a frame, a rotating fixture, a polisher, and a pusher. The frame is equipped with a pressing mechanism, which includes a transmission frame slidably mounted on the frame. One end of the transmission frame has a rotatable transmission screw, and the other end has a rotatable transmission wheel. A downward-moving sleeve is threaded onto the bottom of the transmission screw. This invention solves the problem of radial wobbling and wobble of the gear shaft during high-speed rotation polishing by stably pressing the top of the gear shaft with a positioning seat. This ensures uniform contact pressure between the gear shaft and the polishing wheel, significantly improving polishing quality and finished product yield, and reducing abnormal wear between parts and the polishing wheel. Furthermore, by adjusting the screw and the transmission screw in a synchronized manner, the height of the positioning seat can be quickly and stably adjusted according to gear shafts of different lengths and specifications, adapting to the processing of various types and sizes of gear shafts. The adjustment process is simple and efficient, greatly improving the equipment's versatility and changeover speed.

The invention discloses a functional structure integrated optimization polishing pad capable of uniformly removing materials. The functional structure integrated optimization polishing pad comprises a polishing layer and an elastic layer, the polishing layer is composed of a plurality of protrusions, and the protrusions are arranged in a honeycomb shape. The elastic layer is of a concentric partition structure and comprises a soft area and a hard area. By designing surface patterns of the polishing pad, abrasive particle tracks on the surface of the workpiece are uniformly distributed; by designing the polishing pad structure, the contact pressure on the surface of the workpiece is uniformly distributed. The surface pattern and structure of the polishing pad are subjected to comprehensive optimization design, integrated optimization of the functional structure of the polishing pad is achieved, the abrasive particle motion trail and contact pressure distribution can be cooperatively regulated and controlled, and the material removal uniformity of the surface of a workpiece is improved.

The utility model discloses an anti-collision device based on low-temperature steel cylinder transportation, and relates to the technical field of low-temperature steel cylinder transportation. Comprising a tank body, a protection device is arranged outside the tank body, and an adjusting device is arranged inside the protection device; according to the self-centering closed-loop locking device, the adjusting device is arranged to fix the steel cylinders with different sizes, the inner circular ring is driven to rotate in the circumferential direction to be linked with the top clamping rod set to achieve self-centering closed-loop locking in cooperation with two-way stirring driving of the locking mechanism, the structural integrity of the inner wall is effectively protected, and meanwhile the fixing requirements of the steel cylinders with different specifications can be met; and by arranging a protection device, when the low-temperature steel cylinder is installed and transported, a buffer spring arranged in a protection plate forms a buffer mechanism, and when continuous extrusion loads are coped, the contact pressure can be reduced, the surface of the cylinder body is effectively prevented from generating plastic deformation, and the anti-collision protection effect on the low-temperature steel cylinder in the cylinder body is achieved.

A reduction gear comprises a housing, a carrier, a crankshaft, a rocker gear, and a transmission gear assembly. The teeth 30a, 40a of the at least one gear element from a pair of meshing gear elements in the transmission gear assembly have a crowned section 50 along the tooth line direction. The equivalent radius R in the tooth line direction of the crowned section 50 satisfies formulas (1) and (2). The maximum Hertzian contact pressure in the meshing section of the meshing gear elements is set to 1500 MPa or less. R ≤ = 952.88 * e ( 0.0174 * crankPCR ) 1 / R = 1 / R 1 + 1 / R 2 where crankPCR denotes the pitch circle radius of the central axis position of the crankshaft, centered around the central axis of the support, R1 denotes a radius in the tooth line direction in the meshing section of one of the meshing gear elements, and R2 denotes a radius in the tooth line direction in the meshing section of the other meshing gear elements.

The utility model discloses a pushing and assembling mechanism and an assembling device. The pushing and assembling mechanism is used for pushing and assembling a to-be-assembled object to a designated position of target equipment. The push-loading mechanism comprises a clamping assembly, an adjusting assembly and a driving assembly. The clamping assembly, the adjusting assembly and the driving assembly are sequentially arranged in the first direction. The clamping assembly is used for clamping an object to be assembled. The adjusting assembly is used for sensing the contact pressure between the to-be-assembled object and the target equipment. The adjusting assembly comprises an adjusting base and a pressure sensing piece. The adjusting base is connected with the clamping assembly and the driving assembly. The pressure sensing piece is arranged between the adjusting base and the clamping assembly and makes contact with the adjusting base and the clamping assembly at the same time. The driving assembly is used for driving the adjusting assembly and the clamping assembly to synchronously move in the first direction when the contact pressure is out of the preset range, and then it is guaranteed that the contact pressure is within the proper range.

The utility model provides a hanger lock head which comprises a first lock shell provided with a first semi-arc groove and a second lock shell provided with a second semi-arc groove. When the first lock shell and the second lock shell are spliced and locked, the first semi-arc groove and the second semi-arc groove are spliced to form a lock hole for clamping a hanging rod; a rubber pad is further arranged between the first lock shell and the second lock shell. When the first lock shell and the second lock shell are locked, pressure is generated between the rubber pad and the hanging rod. The elastic characteristic of the rubber pad enables the rubber pad to automatically generate contact pressure with the hanging rod when the lock shell is closed, the small size difference of the hanging rod can be adapted, it can be guaranteed that the lock head is kept in a stable clamping state in different use scenes, and reliability is enhanced.

The utility model provides a drill-bit-shaped tungsten alloy test piece. The drill-bit-shaped tungsten alloy inlaid test piece comprises a bottom plate; the supporting frame is fixedly connected to the top of the bottom plate, the top of the supporting frame is fixedly connected with a test board, and two mounting plates are mounted at the top of the test board. According to the test piece inlaid with the drill-bit-shaped tungsten alloy, through the design, the contact area is large, uniform contact pressure can be provided, contact resistance can be remarkably reduced through large-area contact, the stability of signal transmission is guaranteed, signal reflection or loss is reduced, the finger-shaped process is simple, the production cost is relatively low, and the test piece is suitable for popularization and application. Benefited from the drill-bit-shaped tungsten alloy head which is similar to a triangular structure and is stable, more stable strength is achieved in repeated tests, poor contact caused by breakage of the head tungsten alloy is avoided, and therefore the more stable and reliable contact effect is achieved.

The application discloses a high-strength corrosion-resistant hydraulic oil cylinder aluminum alloy piston casting core-pulling device and relates to the casting technical field. In the core-pulling process, the end face of the material is not tightly limited, the position of the material and the moving direction of the core-pulling are inclined, extrusion deformation appears between the material and the core, the quality of the core-pulling is affected, the top block and the top disc are matched, the top block first contacts the material when contacting the end face of the material, then the top block is compressed by the arc sliding plate under the contact pressure to deform the elastic pad ring, the top block slides in the inner wall of the top disc, the end face of the material is contacted by the top disc, the material is limited in the core-pulling process, the auxiliary fixing mechanism limits the material in the core-pulling process, and after the end face is contacted by the top disc, the contact area is increased, the contact position pressure is prevented from being large due to the small contact area in the core-pulling process, and the material is prevented from being deformed.

Agricultural harvester (10), having a frame or a framework (12) on which a chassis (14) and / or an attachment device for receiving on a carrier vehicle engages, having working units (17) which, in a working position of the harvester, are supported via supporting devices (20) on a ground surface, having ground relief devices (21, 24) via which, in the working position of the harvester, a contact force or a contact pressure of the working units (17) on the ground surface is settable, having sensors (22) which are configured to measure for each working unit (17) a working weight thereof or a weight of the crops situated thereon or a contact force according to this, or a contact pressure according to this, of the respective working unit (17) on the ground surface, and having a control unit (23) which is configured to control the ground relief devices (21, 24) according to the measurement variables of the sensors (22) in order to influence the contact forces or contact pressures of the working units (17). FIG. 1

The invention relates to the field of conductive block grinding, in particular to a slip ring conductive block intelligent grinding machine which comprises a base support, an arc-shaped cover plate is arranged on the primary side surface of the base support, and seat frames are fixedly installed on the two sides of the upper surface of the base support through bolts. Through rigid transmission of a convex gear of the turning assembly and a linkage structure of a multi-stage swing rod and a crank, the slipping problem in the movement process is effectively avoided, the swing track of the polishing rod is consistent, and the dull polish rod always keeps a surface contact state with the surface of the conductive block through the angle self-adaptive compensation function of a universal shaft sleeve; after grinding, the surface roughness of the conductive block is obviously reduced, the touch feeling is fine and uniform, the effective contact area is increased, the contact resistance fluctuation is reduced, the high precision requirement on the conductive performance is met, meanwhile, a dynamic tension structure formed by the tension spring is matched with the angle compensation design of the U-shaped connecting handle, so that the contact pressure in the grinding and polishing process is stabilized in a suitable range, and the grinding effect is good. And self-adaptive adjustment can be carried out according to different materials of the conductive blocks.

An actuator for vibrating an optical element, which is capable of improving durability of a fulcrum portion that is a rotation fulcrum of a movable body holding the optical element, even if the optical element is continuously vibrated at a relatively high frequency. In the actuator (1), a fulcrum portion (6) that is a fulcrum of rotation of a movable body (3) with respect to a fixed body (4) is provided with a ball (11) made of ceramic, a ball holding member (12) mounted on the movable body and used for holding the ball, and a ball support member (13) mounted on the fixed body. The ball is arranged on an inner peripheral side of a cylindrical portion of the ball holding member formed in a bottomed cylindrical shape, and a through hole is formed in a bottom portion of the ball holding member for arranging a part of the ball arranged on the inner peripheral side of the cylindrical portion outside the ball holding member. A concave curved surface-shaped contact surface formed on the ball support member is in contact with a part of the ball arranged outside the ball holding member at a prescribed contact pressure.

The application discloses a circumferential deflectable driving drill pipe for automatic screwing and unscrewing of a drilling machine, a deflection structure is designed in the driving drill pipe, deflection of a working drill pipe structure is converted into bending deformation of the driving drill pipe, and coaxiality error is compensated; and extrusion stress between threads can be effectively released and relieved, local contact pressure between thread engagement tooth surfaces is avoided from being too large, and thread wear speed is delayed. Meanwhile, since automatic connection of the drill pipe exists frequent screwing and unscrewing processes, an effective coaxiality adjusting method is provided, drill pipe damage and construction delay caused by thread jamming are avoided, and actual engineering application is met. The application of the patent structure and method weakens the influence of coaxiality error on drill pipe joint centering difference, thread rotation jamming and thread wear, and is suitable for large-scale use and popularization in industry.

The utility model discloses a municipal water supply pipeline blocking device. The municipal water supply pipeline blocking device comprises a base, a driving mechanism, a sealing module and an adjusting assembly. The base is disc-shaped and is provided with an annular groove and a through hole; the driving mechanism is composed of a lead screw and a hand wheel and used for pushing the base to move. The sealing module comprises a flexible sealing ring and an arc-shaped pressing plate and is fixed to the base through bolts. The adjusting assembly is composed of a telescopic rod and an adjusting nut and used for adjusting the contact pressure between the sealing ring and the inner wall of the pipeline. The sealing performance is improved through the annular protrusions on the surface of the flexible sealing ring and lubricating grease, the adjusting flexibility is guaranteed through the telescopic rod and the spherical hinge, and the stability is enhanced through the positioning pin and the arc-shaped pressing plate. The pipe plugging device solves the problems that an existing pipe plugging device is not tight in sealing and complex in operation, plugging reliability and construction efficiency are improved, and the pipe plugging device has high practical value.

To generate contact pressure while minimizing the increase in the number of parts. [Solution] The male tab-shaped first busbar connection portion 12 of the first busbar 10 has a plurality of ribs 13 that bulge out from one plane 12a and extend in a direction perpendicular to the direction in which the second busbar 110 is fitted into the U-shaped second busbar connection portion 112. The second busbar connection portion has a notched portion 113 that is cut along the U shape into which the first busbar connection portion is fitted, a U-shaped first contact portion 114 that contacts the other plane 12b of the first busbar connection portion when the assembly of the first terminal block 1 and the second terminal block 101 is completed, and a U-shaped second contact portion 115 that contacts the plurality of ribs of the first busbar connection portion when the assembly is completed.

The present application relates to a kind of rectification eccentric drill and correction method of running deviation, belong to geological core drilling technical field.The technical scheme is: if running deviation occurs in the process of drilling, replace rectification eccentric drill and drill;When rectification eccentric drill rotates, the centrifugal force, contact pressure and fluid dynamic effect generated are uneven in the circumferential direction of borehole, can balance the running deviation radial force exerted by borehole wall to rectification eccentric drill, promote borehole trajectory to be gradually corrected.The present application has beneficial effects: applied in wire-line coring drilling, both can prevent drill running deviation, and can correct the running deviation of drill, actively offset or balance deflection force, inhibit running deviation, improve the stability of drill in easy running deviation stratum drilling, inhibit the unexpected change of azimuth angle and inclination.

The piston rod rapid polishing device comprises a base supporting frame, a workbench is arranged at the upper end of the base supporting frame, a clamping set and a rotary driving set are arranged at the two ends of the upper surface of the workbench, and the clamping set and the rotary driving set are correspondingly arranged; by means of the piston rod polishing device, operations such as clamping, rotating, height adjusting and abrasive belt driving can be completed, manual intervention is reduced, the production efficiency is improved, the rotating driving set ensures that the piston rod rotates evenly in the polishing process, and the polishing quality is improved. The abrasive belt is matched with the moving set to achieve accurate movement of the abrasive belt in the length direction of the piston rod, so that it is guaranteed that the whole surface is subjected to consistent grinding treatment, the telescopic air cylinder can accurately control the contact pressure between the grinding abrasive belt and the piston rod, it is guaranteed that the workpiece surface cannot be damaged due to too large pressure, and the poor grinding effect cannot be caused due to insufficient pressure.

The invention belongs to the technical field of ship propulsion system bearing structure design and vibration control, and discloses an isobaric expansion type stern bearing based on a negative Poisson's ratio topological lining structure, and a negative Poisson's ratio topological layer is composed of geometric topological units and generates tangential expansion deformation under the action of radial load. Through the negative Poisson's ratio effect, the radial compression load of the shaft system is converted into circumferential expansion response, isobaric expansion of a shaft-lining contact area is achieved, the effective bearing area is increased, and contact pressure distribution is homogenized. The topology lining is divided into a head end topology area, a transition area, a middle topology area, a transition area and a stern end topology area in the axial direction, and all the areas are matched with non-uniform distribution of shaft system bending, unbalance loading and lubricating states under the low-speed and heavy-load working conditions by regulating and controlling topological unit geometric parameters, equivalent Poisson ratios and negative Poisson ratio topological layer thicknesses. According to the invention, edge high pressure and local wear can be obviously reduced, water film stability is improved, bearing capacity and vibration and noise reduction performance of the stern bearing are improved, and service life is prolonged.

The invention relates to a method for monitoring the contact pressure of two corrugating rollers (100, 102) for producing corrugated cardboard, having the steps of: – determining, by means of a sensor, a vibration frequency spectrum of at least one of two corrugating rollers pressed against one another with an adjustable contact pressure, the corrugating rollers being configured to produce a corrugated cardboard laminated on at least one side, – determining at least one measured value for characterizing the vibration frequency spectrum, – determining a need for an adjustment of the contact pressure using a logic for predicting the at least one measured value on the basis of the contact pressure, and – outputting the need for an adjustment of the contact pressure. The proposed solution additionally also comprises a device for monitoring the contact pressure of two corrugating rollers for producing corrugated cardboard, a machine for producing corrugated cardboard laminated on at least one side, and a computer program product.

The invention relates to an inchworm piezoelectric linear motion platform and a pre-tightening installation method thereof. The inchworm piezoelectric linear motion platform comprises a base, a linear guide rail, a movable platform, a wear-resistant ceramic chip and two driving foot compliant mechanisms. By designing a structure capable of realizing controllable adjustment of the contact pressure between the clamping force adjusting part and the mover part, the situation that the contact pressure of the clamping force adjusting part and the mover part is reduced or separated due to deformation of a rhombic displacement amplification mechanism when the pretightening force of the piezoelectric ceramic actuator is adjusted is avoided, and the clamping force is not influenced when the piezoelectric ceramic actuator extends is avoided. The upper half portion of the rhombic displacement amplification mechanism is not fixed, so that displacement amplification loss is caused, the problem that in the prior art, due to contact pressure adaptability deficiency, the driving force performance is unstable is solved, the reliability of the driving force performance of the whole precise positioning platform is improved, and the comprehensive performance requirement of the micro-nano operation field is met.

The invention relates to the technical field of ship propulsion systems, and particularly discloses a texturing-self-lubricating synergistically reinforced hub joint surface structure and a wear depth prediction method. The joint surface structure comprises a propeller hub and a crank pin disc, and the joint surface of the propeller hub adopts a partition micro-texture design: the periphery is a groove type micro-texture for guiding oil and discharging chips; and the inner side is a pit-shaped micro-texture and is used for storing oil and lubricating. A gradient nanocrystalline strengthening layer is formed on the combined surface of the crank pin disc through ultrasonic rolling treatment, and a self-lubricating material column is embedded in the combined surface in an interference pressing mode, so that solid lubrication and high bearing capacity are achieved. The wear prediction method comprises the following steps: calibrating a wear coefficient K through a fretting wear experiment; establishing a finite element model to simulate and obtain the distribution of the contact pressure P and the inching slip amplitude S; and substituting the P and S field data and the K value into an Archard model to calculate the wear depth, and generating a visual prediction cloud picture. Through the synergistic effect of the texture and the self-lubricating material, the boundary lubricating state is remarkably improved, the wear rate is reduced, wear distribution can be accurately predicted, a basis is provided for condition-based maintenance, and the service life of the controllable-pitch propeller is prolonged.

Method for operating a roller press (1) for compacting or briquetting material, wherein the roller press (1) has two counter-rotating press rollers (2) between which a roller gap (W) is formed and at least one of the roller surfaces is provided with a profile, wherein the material (M) in the roller gap (W) between the roller surfaces is pressed into a briquette (3) or into briquettes or a briquette strand, wherein the rollers (2) are preferably cooled during operation, characterized in that that during operation at least one characteristic parameter is continuously determined which depends on the formation of deposits (7) of the material (M) on the profiled roller surface or on the profiled roller surfaces and that one or more operating parameters of the press are changed depending on at least one determined characteristic value in order to reduce caking (7), that the operating parameter(s) are changed by means of a control system in such a way that a deviation of a determined actual value (I) of the characteristic parameter(s) from a target value (S) of the characteristic parameter(s) is minimized, where the press (1) is operated with a variable pressure (P) as an operating parameter and the pressure (P) is changed by a control system depending on the determined characteristic value. and / or the press (1) with variable cooling and / or variable temperature (T) and / or variable feed temperature (T) A ) is operated as an operating parameter and the cooling and / or the temperature (T) and / or the input temperature (T) A) is changed by a control system depending on the determined parameter and / or the press (1) is operated with a variable feed of the input material, namely with a variable quantity flow or mass flow of the supplied input material as an operating parameter, and the supplied quantity of material or the quantity flow or mass flow (m) of the supplied input material is changed by a control system depending on the determined characteristic value and / or the press (1) is operated with a variable rotational speed as an operating parameter and the rotational speed is changed by a control system depending on the determined characteristic value, and whereby A vibration value is determined as a characteristic value by a measurement using a vibration sensor (8). or A fluctuation value is used as a characteristic value, which is determined from fluctuations of a machine parameter, wherein the fluctuation value is determined from fluctuations in the gap width of the roller gap or from fluctuations in the contact pressure of one or both press rollers or from fluctuations in the motor current or motor torque of one or both drives of the press rollers.

The invention relates to a method and a system for testing rolling load performance of a moving surface layer. The method comprises the following steps: fixing a moving surface layer sample to be tested on a test base and determining a rolling test area; a rolling load spectrum comprising a plurality of test periods is constructed, at least one different rolling load parameter is set in different test periods, and the parameters comprise one or more of normal load, contact pressure, rolling speed, reciprocating stroke, rolling path width and cycle index; driving a roller assembly to apply a reciprocating rolling load to the test area according to the load spectrum, and collecting multiple types of test data; performing time synchronization, de-noising and feature extraction on the data to obtain a damage feature set of residual indentation, rigidity attenuation, wear rate, dusting, peeling and the like; generating a rolling load performance score and / or grade determination; and when the two adjacent test periods meet the termination conditions such as the damage threshold, the score threshold or the maximum period number and the like, terminating and outputting a result.

This invention discloses a piercing clamp for improving stress distribution and creep compensation, comprising an upper and lower housing clamped by torque bolts, a piercing blade arranged in a mounting groove in the lower housing, and cable management structures at both ends of the piercing area. The cable management structures consist of an upper clamp, a lower clamp, a lead screw, an ear plate, a fixing plate, and a compression spring. Through synchronous adjustment on both sides, they provide circumferential clamping and axial guidance of the conductor, aligning the inlet and outlet axes and providing elastic compensation at the end clamping level. A butterfly-shaped washer is provided in the torque bolt clamping path to continuously compensate for the overall clamping force of the housing; a wave spring is arranged in the mounting seat at the bottom of the piercing blade to ensure more uniform contact pressure between the blade teeth and the conductor. This structure improves the piercing force distribution during installation, slows down preload decay during operation, reduces contact resistance and heat generation risk, and improves the long-term safety and reliability of the line connection.

The anti-leakage structure comprises a supporting plate, the top end of the supporting plate is fixedly connected with a fixing plate, the inner wall of the fixing plate is fixedly connected with an inclined plate, the inner wall of the fixing plate is rotationally connected with a blanking plate, the inner wall of the blanking plate is rotationally connected with a pair of flexible bent plates, and the flexible bent plates are fixedly connected with the top end of the supporting plate. A guide plate is fixedly connected to the upper surface of the blanking plate, a controller is fixedly connected to the surface of the fixing plate, and a blanking protection mechanism is arranged on the lower surface of the blanking plate. Stamped materials are blocked and stored by the pair of tough bending plates, after stamping parts with certain weight are stacked on the tough bending plates, the tough bending plates deform under the action of pressure and make contact with the pressure sensor, at the moment, the output end of the electric telescopic rod drives the driving plate to move, the pair of gears rotate oppositely, and the stamping parts are stored. And meanwhile, the guide plate can prevent the parts from sliding off from the blanking plate and side leakage is caused when the parts are packaged.

The utility model discloses a system (500) for monitoring a plurality of draft units (100) of a fabric spinning machine (1), which includes hoses, monitoring units and a control system. The hoses (L1, L2, L3, L4, R1, R2, R3, R4) are configured to receive an inert fluid in order to maintain a desired contact pressure between the top roller (9) and the bottom roller (10). The monitoring units (31, 32, 33, 34, 35, 36, 37, 38) are mounted on each hose and comprise a sensor (13), an identification tag storing the position of each sensor and a microcontroller. The sensor continuously senses the pressure of the fluid and generates a signal in real time. The monitoring unit detects the faulty hose based on the comparison of the sensed signal with predetermined limits. The control system is in electronic communication with each monitoring unit to identify and locate the faulty hose and to stop the operation of the top arm assembly (11) corresponding to the faulty hose.