65results about How to "Reduce Occupational Injuries" patented technology

The invention discloses a sinking technology for expanding a pilot well drilled by a raise-boring machine, by using a vertical well heading machine, which comprises the following steps of (a) drilling the pilot well by using the raise-boring machine; (b) drilling by using the vertical well heading machine to enable the pilot well to be enlarged into a vertical well at a desirable diameter in a brushing way; (c) hanging a net on and jetting concrete onto the wall of the vertical well to form a temporary supporting well wall; (d) after enlarging in the brushing way and heading to a lower tunnel by using the vertical well heading machine, gradually removing components of the vertical well heading machine from top to bottom. By the adoption of the technology provided by the invention, in the presence of the pilot well, a vertical well hole at a design diameter is formed through the one-time drilling of the vertical well heading machine; therefore the technology is applicable for the construction of underground mine vertical well holes for coal mining, metal, nonmetal and the like.

The invention discloses a hand-held automatic winding machine and a using method thereof. The hand-held automatic winding machine comprises a handle, a control switch, a transmission box, a motor, a first driven gear, a drive gear, a second driven gear, a winding rotator, a coil, a line clamping mechanism, a first swing arm, a guide block, a knife edge and a second swing arm. The transmission shaft of the motor drives the drive gear to transmit power to the driven gears, the driven gears rotate in same speed and direction and are engaged with the winding rotator, and the transmission shaft of the motor transmits power to the winding rotator; the swing arms rotate in the same speed as the winding rotator; when the line end is led out, the line end is fixedly wound on an object to be wound axially through the guide block, the coil rotates the object to be wound when an operator presses the control switch, and the purpose of winding is achieved. By the aid of the machine, winding intensity of the operator is reduced greatly, and winding efficiency is improved greatly.

The invention relates to the field of decoration equipment, in particular to a hand-pushing type joint beautifying machine which comprises a cart and a joint beautifying agent barrel arranged on the cart and used for containing a joint beautifying agent. Multiple advancing wheels and two guide wheels are arranged at the bottom of the cart at intervals, an agent injection nozzle is arranged at oneend of the joint beautifying agent barrel and positioned between the guide wheels, a piston capable of sliding along the axial direction of the joint beautifying barrel to squeeze the joint beautifying agent out of the agent injection nozzle is arranged in an inner cavity of the joint beautifying agent barrel, the other end of the joint beautifying agent barrel is open, and a synchronous squeezingdevice capable of adjusting sliding speed of the piston in the inner cavity of the joint beautifying agent barrel according to rotating speed of the advancing wheels is arranged at the open end of the joint beautifying agent barrel. The hand-pushing type joint beautifying machine has the advantages of simplicity and convenience in operation method, low labor intensity and uniformity in filling ofthe joint beautifying agent.

The invention provides an industrialized production method of high-purity pemetrexed disodium, comprising the following steps of: (1) adding crude pemetrexed disodium into a reactor, adding water and stirring to dissolve at a temperature of 10-30 DEG C; (2) adding tetrahydrofuran or acetonitrile serving as a dissolvent into the reaction solution of the step (1), dissolving out a part of solids, adding kieselguhr or silica gel and stirring for 5-30 minutes; and (3) filtering the reaction solution of the step (2), adding dissolvent same as the dissolvent added in the step (2) into filtrate, crystallizing for 0.5-10 hours at a temperature of 10-30 DEG C, isolating solids, and drying for 0.5-10 hours at a temperature of 20-40 DEG C to obtain the high-purity pemetrexed disodium. By means of the production method, the shortcomings that in the prior art column chromatography, purification and heating are needed, the product purity is low, the operation is cumbersome and the industrialized production is difficult to realize are overcome; the production method is simple and convenient for operation, is easy to realize the industrialized production and has the advantages of few consumption of dissolvent, energy saving, environmental protection and low labor intensity; and the products have the advantages of white color, high purity, less than 0.05% of impurities in a single product and good stability.

The invention provides an automatic cleaning device for waste yarn of a glass fiber yarn tube. The automatic cleaning device comprises a rack and a horizontal annular slide rail assembly which is fixed through two rolling rollers on the middle portion of the rack; a feeding device, a cutting device and a remnant yarn cleaning device are sequentially connected to one side of the annular slide rail assembly; the feeding device is connected with a feeding conveying belt located on the exterior of the rack; an electrostatic dust removing device, a surface cleaning device and a material taking device are horizontally and sequentially connected to the other side of the annular slide rail assembly; the material taking device is connected with a discharging conveying belt located on the exterior of the rack; and the discharging conveying belt is parallel with the feeding conveying belt. Manual operation is reduced, and work accidental injuries to personnel are reduced.

The invention discloses an energy-saving high-performance dry-process calcium hydroxide production line. The production line comprises a material delivery device, a digestion device, a powder selecting device, a water source supply device and a PLC control system; the material delivery device is connected with the inlet of the digestion device by use of a conveying mechanism; the digestion device is provided with at least three digesters orderly connected with one another, and the outlets and the inlets of the adjacent digesters are orderly communicated with each other; a dust remover and a heat conversion system for digesters are arranged in the water source supply device; the water outlet of the heat conversion system is communicated with the water inlet of the primary digester; the powder selecting device comprises a powder selector and a dust remover for the powder selector; the feeding hole of the powder selector is communicated with the discharge hole of the digestion device via a conveying mechanism; the discharge hole of the powder selector is divided into a powder outlet and a slag outlet; the air outlet of the powder selector is connected with the air inlet of the dust remover for the powder selector; the discharge hole of the dust remover for the powder selector is communicated with a finished product output mechanism. According to the energy-saving high-performance dry-process calcium hydroxide production line, the purity of the finished product is improved, environmental pollution caused by accidental leakage during production can be prevented, the energy is saved, the emission is reduced, the automation degree is high and no production personnel is needed; in short, the production line conforms to the national environmental protection policy intention.

The invention discloses an automatic paint spraying system comprises a circulating conveying device and a paint spraying mechanism which is arranged on one side of the circulating conveying device. The paint spraying mechanism comprises a dynamic spray gun and a static spray gun which are arranged side by side. The dynamic spray gun is driven by a spray gun driving device to do vertically reciprocating motions. The static spray gun is fixed on one side of the circulating conveying device. A workpiece loading seat is mounted on the circulating conveying device and, under driving of a rotation mechanism, rotates when moving on a relative position of the paint spraying mechanism. A paint mist recycling system is arranged on one side of the circulating conveying device. The automatic paint spraying system is simple in structure, convenient to operate, efficient in paint spraying and high in paint use ration. Compared with the manual paint spraying, the automatic paint spraying system has the advantages that work efficiency is improved by 30 times, spray mist discharging is decreased by 70% or above, the paint use ration is increased by 3 times or above, live environment of the paint spraying plants is greatly improved, and occupational damages and skill requirements for the operator are reduced.

The invention discloses an MP3 product shell pressing and assembling device, which is characterized by comprising a product input / output device, a pressing head pressing device and a pressing head, wherein the product input / output device is provided with a fixing base for fixing MP3 products, and a slide platform cylinder which can horizontally move front and back is arranged at the lower end of the fixing base; the pressing head pressing device is arranged at the upper end of the product input / output device; and the pressing head is fixedly connected with a vertical movement mechanism and is driven by the vertical movement mechanism to press and assemble the MP3 products which are not provided with shells in the fixing seat. The MP3 product shell pressing and assembling device disclosed by the invention can greatly improve the assembling efficiency, reduce safety accidents in the assembling process, and ensure the stable quality, uniformity and low reject ratio of the assembled products.

A walking rehabilitation robot system is provided, which includes two robot feet, any robot foot of the sound leg will generate a plurality of motion detection signals by first move so that another robot foot learns to move. A control device is electrically connected to each robot foot and receives the motion detection signals transmitted by the robot foot of first move. The control device calculates a first movement track by using the motion detection signals, and then calculates the required motor torque to generate a second movement track according to the first movement track. The control device controls the movement of the other robot foot based on the second movement track. The present invention designs for a user with an inconvenient mobility. The user uses a normal movement of sound half body so that the other robot foot can move the inconveniently moved part immediately.

The invention relates to a plate turnover machine on a brick pressing machine. The plate turnover machine is composed of a plate turnover rack and rotating arm rods. The number of the rotating arm rods is two. The two ends of each rotating arm rod are symmetrically and consistently provided with deep grooves with the thickness matched with that of a clamp plate. The two rotating arm rods are arranged in parallel, the middles of the two rotating arm rods are fixed to the same plate turnover rotating shaft, and the deep grooves in the same ends of the two rotating arm rods are combined into a dual clamping opening. According to the plate turnover machine, the rotating arm rods are utilized for clamping the empty clamp plate, the two rotating arm rods rotate to reverse the clamp plate, a second conveying line is ingeniously utilized and beaten, and green brick shred residues left on the clamp plate are shaken to fall into the position below the plate turnover rack; and the green brick shred residues left on the empty clamp plate can be automatically cleared away, flying dust is small, the health of operators is facilitated, and occupational diseases are reduced.

The invention provides an automatic feeding and discharging device. According to the device, a support is installed on a rack; a slide carriage is installed above the support; a buffer frame is installed at the middle section of a side wing of the slide carriage; a steering groove is connected to the tail end of the slide carriage; a thickness regulation plate is installed on a side wing of the steering groove, and the bottom surface of the thickness regulation plate is parallel with the vertical plane of the steering groove; a clamp is located under the steering groove, and a middle opening of the clamp right faces a bottom opening of the steering groove; a horizontal movement support is located under the steering groove; an unloading air cylinder is installed at the bottom of the horizontal movement support and fixedly connected with an unloading baffle in the horizontal movement support. The automatic feeding and discharging device is suitable for automatic feeding in the process of machining edge teeth of files and makes the files enter a machining position of a machine tool at a right posture.

The invention relates to a device and method for washing needle cylinders. The device for washing the needle cylinders comprises a lifting mechanism, an autorotation mechanism and a washing mechanism. The autorotation mechanism comprises a motor and a rotating frame connected with the motor. The washing mechanism comprises a lifting rod and an oil gun arranged on the lifting rod. The lifting rod is arranged on the side of the rotating frame. The lifting mechanism comprises a support, a rotating arm, an electric block with a lifting rope and a clamp. The rotating arm is arranged on the support in a rotatable mode, the electric block is arranged on the rotating arm, and the clamp is connected with the lifting rope of the electric block. By means of the device and method for washing the needle cylinders, due to the arrangement of the lifting mechanism, the needle cylinders can be conveniently lifted, moved and released, and the manpower labor intensity can be greatly reduced; due to the fact that the autorotation mechanism and the washing mechanism are arranged in a matched mode, the needle cylinders can be conveniently and automatically washed, an operator can be prevented from being in direct contact with spray gun water, and occupational injuries can be reduced.

The invention provides a human body cold stress fine grading evaluation system in a low-temperature operation environment. The system comprises the following steps of selecting metabolic rate values which accord with actual labor intensity and labor types of human bodies from an established metabolic rate database; selecting dynamic thermal resistance and moisture resistance values of clothes according with the actual environment from the established dynamic thermal and moisture resistance database of clothes and substituting the values into the system; calculating time-varying core temperature, local skin temperature and average skin temperature of human bodies in the low-temperature cold environment through the established human body cold stress partition fine prediction model. Comparedwith index thresholds of different cold stress stages, cold stress level of human bodies is evaluated. Therefore, acceptable longest exposure time for human bodies is determined, measured value is more accurate, predictability is good, guidance is provided for selecting appropriate emergency equipment according to the cold environment and reasonably arranging organization and production strategiesin the cold environment. Theoretical basis and guidance are provided for reduction of occupational injuries in China, personnel cold stress risk is reduced, and personnel life safety is protected.

The invention relates to an intelligent vehicle radioactivity monitoring system. The intelligent vehicle radioactivity monitoring system is characterized by comprising a radioactivity monitoring unit, a vehicle speed detecting unit, a license plate recognizing unit, a video monitoring unit, an LED display unit, a gate control unit and a monitoring platform. According to the intelligent vehicle radioactivity monitoring system provided by the embodiment of the invention, open modularized system layout is adopted, so that real-time data are provided for daily radioactivity monitoring, accident handling and emergency response; automatic release operation is carried out according to a detection result, so that the daily work efficiency is improved, and occupational injuries are reduced; meanwhile, the monitoring platform of the system is integrally designed, so that one or more channels can be simultaneously monitored, and the functions of system configuration, alarm management, data management, video monitoring and the like are combined.

The invention relates to a device for automatic winding adhesive tape on a wire harness. The device comprises a main frame (8), a wire harness fixing component for fixing the wire harness to be wound on the main frame, a tape winding head (5) comprising a rotary motor (52), a rotating body unit (58) driven by the rotary motor (52) to rotate, an adhesive tape mounting rack (59) rotating with the rotating body unit (58), a material placing stopper (510) installed in the center of the rotating body unit (58) and allowing the wire harness to be wound to pass through, and a head displacement component which is installed on the main frame (8) and fixedly connected with the tape winding head (5) and drives the tape winding head (5) to move on the main frame (8) so as to wind adhesive tape on the wire harness to be wound fixed on the main frame (8). Compared with the prior art, the device has the advantages of compact structure, small floor area, high working efficiency and good tape winding quality.

The invention discloses a method and device for sound insulation and noise reduction and relates to the field of tobacco processing, in particular to a sound-insulation noise-reduction system which is mounted on a roll-packing device of a roll-packing workshop of a cigarette factor to serve as a protection door for sound insulation and noise reduction. The sound-insulation noise-reduction system is characterized in that the device is composed of a casing, a rubber coating, a sound-absorbing cloth cover, a sound-absorbing foam metal plate, a fiber sound-absorbing plate, toughened vacuum glass and the like, the rubber coating used for noise reduction coats the inner side of the casing, the sound-absorbing cloth cover, the sound-absorbing foam metal plate, the fiber sound-absorbing plate and the toughened vacuum glass are sequentially mounted on the rubber coating, and then the fiber sound-absorbing plate and the sound-absorbing foam metal plate are mounted. The device is applied to the noise source portion of the roll-packing device of the roll-packing workshop or is used for being produced into the protection door and the like for sound absorption and noise reduction, pollution of the noise source can be controlled, and the effect is obvious.

The invention relates to an automatic stacking device of a brick machine. The automatic stacking device consists of a portal frame, a transverse trolley, a mechanical hand and a stacking transferring device, wherein a rack feeder, a stacking transferring plate and a roller conveying line are arranged in the stacking transferring device; the portal frame stretches across the two sides of the roller conveying line and the two sides of a primary conveying line; the transverse trolley can be driven by a rack in a servo mode to operate on a bridge frame rail of the portal frame back and forth; and an up-down lifting mechanism is arranged on the transverse trolley. The automatic stacking device is high in degree of automatic production; and stacked bricks are orderly, and are not liable to collapse.

The invention discloses a lifting handcart, which is characterized in that the lifting handcart is provided with a portal frame with a base, wheels are arranged on the base of the frame, a handrail is arranged at the upper part of the frame to form a small handcart, a heavy object platform which can swing forwards and backwards is suspended on the internal sides of two stand columns at the middle-to-lower part of the frame at equal height, a transverse rail is arranged at the middle part of the portal frame and a lifting mechanism is arranged at the top of the portal frame. The lifting handcart not only can lift heavy objects to a truck from the ground in an energy-saving way and has a simple structure, but also has the advantages that the price is low, the materials and the parts are easy to obtain, the labor injuries can be reduced by using the handcart and the handcart is of a great help particularly to old people who are at home alone and frequently require to handle some heavy objects such as gas containers, water buckets and water tanks.

The invention provides an office personal health monitoring management device, a system and a method thereof. The office personal health monitoring management device comprises a monitoring probe module, an indicating module, a master control module, a database storage module, a power supply module and a communication module. The monitoring probe module, the indicating module, the database storagemodule and the power supply module are connected with the master control module. The communication module is connected with the master control module and the database storage module. According to thedevice, the user state is monitored through a monitoring probe module, and the monitored user state is compared with a stored state; when a detected user state reaches an alarm threshold or an abnormity occurs, a related indication condition is transmitted through the indicating module, and furthermore a monitoring function and an indicating function can be effectively performed. Based on the functions, network connection with a network server can be realized through a mobile terminal, thereby facilitating remote monitoring and reminding.

The shoe sole making process includes the following steps: making one mold with mold cavity in the shape of shoe sole and at least one hole to outside and flat part around the hole; making one insert; setting the insert into the mold cavity and vacuum pumping the mold cavity through the hole for the insert to contact with the flat part; pouring or injecting plastic material into the mold cavity; curing and demolding to form shoe sole.

The invention discloses a pulse pressing clip for a finger, which is used for treating blood collection of finger ends. The pulse pressing clip for the finger consists of a clip body (1) parallel to a jaw, a spring (2), inner side convex cross grain elastic plastic (3), outer side concave cross grain elastic plastic (4), a finger ring (5) and a rope (6). In the scheme, the inner side convex elastic plastic (3) at the jaw is designed according to finger end vessel anatomy characteristics and can form pressure areas in palmar surface and back surface venous return areas of the finger to effectively prevent peripheral blood return of the finger, so that blood is collected smoothly, the pain of a blood-collected person is reduced, and the physical labor of blood collection personnel is reduced; the friction between an operator and a blood collection extruded finger is reduced by the outer side concave cross grain elastic plastic (4); and the finger ring (5) makes the operator conveniently wear the pulse pressing clip in a hand, so that taking and placing frequencies and pollution are reduced.

A wet etching apparatus is provided. A liquid absorb device is provided on that cover plate of the etching groove in the wet etching apparatus, the etching solution remaining on the cover plate of theetching groove is quickly absorbed, A liquid etch solution remaining on that cover plate of the etching groove is prevented from being sputtered or drip onto the glass substrate, the product abnormality caused by the etching solution remaining on the cover plate of the etching groove is reduced, Improving the Mura on the glass substrate, increasing the yield of the product, and in the maintenanceof the wet etching equipment, the equipment operator does not need to manually clean the residual liquid medicine on the cover plate of the etching tank body, thus reducing the workload of the equipment operator and occupational injury; In addition, since the residual etching solution on the cover plate of the etching groove is reduced, the detection and observation of the inside of the etching groove by the equipment operator can be facilitated, and the accuracy of the process parameter acquisition can be improved.

The invention provides an industrialized production method of high-purity pemetrexed disodium, comprising the following steps of: (1) adding crude pemetrexed disodium into a reactor, adding water and stirring to dissolve at a temperature of 10-30 DEG C; (2) adding tetrahydrofuran or acetonitrile serving as a dissolvent into the reaction solution of the step (1), dissolving out a part of solids, adding kieselguhr or silica gel and stirring for 5-30 minutes; and (3) filtering the reaction solution of the step (2), adding dissolvent same as the dissolvent added in the step (2) into filtrate, crystallizing for 0.5-10 hours at a temperature of 10-30 DEG C, isolating solids, and drying for 0.5-10 hours at a temperature of 20-40 DEG C to obtain the high-purity pemetrexed disodium. By means of the production method, the shortcomings that in the prior art column chromatography, purification and heating are needed, the product purity is low, the operation is cumbersome and the industrialized production is difficult to realize are overcome; the production method is simple and convenient for operation, is easy to realize the industrialized production and has the advantages of few consumptionof dissolvent, energy saving, environmental protection and low labor intensity; and the products have the advantages of white color, high purity, less than 0.05% of impurities in a single product andgood stability.

The invention discloses a counterweight manual desktop lifting device and a counterweight manual desktop lifting method adaptive to sitting and standing alternation. The counterweight manual desktop lifting device and the counterweight manual desktop lifting method are used for solving problems of complicated structures, high energy consumption and maintenance cost and expensiveness or problems of low lifting speeds and time and labor wastage of existing desktop lifting devices. The counterweight manual desktop lifting device comprises a desktop, a counterweight, a drive and a support. The desktop refers to an object required to be lifted, the counterweight refers to an article which is configured to keep balance with the desktop, the drive refers to a portion which is connected with the desktop and the counterweight and is used for transmitting acting force of a user, and the support refers to a structure which supports the desktop, the counterweight and the drive. The counterweight manual desktop lifting device and the counterweight manual desktop lifting method have the advantages that balance states are established between the desktop and the counterweight by the aid of equal or equivalent weight via the drive, so that the desktop can remain at a certain altitude without actions of external force; the user can easily lift the desktop to an appropriate altitude within a few seconds by means of slightly exerting hand power when using the counterweight manual desktop lifting device; the lifting speeds can be obviously increased by the aid of the counterweight manual desktop lifting device, the health level and the work and learning efficiency of sedentary populations such as students, white-collar workers and customers of internet cafes can be improved, expenditures can be reduced relatively, and environments can be beautified relatively.

The invention discloses a metal cutting machine slag-splashing protection and collection device, comprising an air suction splash inlet end, a variable cross-section fan working end, and a splash protection and collection end. The air suction splash inlet end is a rectangular frame-shaped air suction cover whose two ends are open. The splash protection and collection end is formed by a net frame whose one end is open and a fire-resistant rock wool canvas bag whose one end is open. The fire-resistant rock wool canvas bag is arranged in the net frame. The bag opening of the fire-resistant rock wool canvas bag and the opening end of the net frame are fixedly connected with the small section of the variable cross-section fan working end through a clamp connecting device. The device is portable, and is simple in operation, easy in site operation, high in efficiency and good in effect, and is very suitable to be used for protection of field metal cutting. The device removes defects that conventional metal cutting has no protection or protection is simple.

The invention discloses a human body heat stress early warning system based on heart rate monitoring and a labor metabolism prediction method. The system mainly includes a heart rate monitoring device, a metabolic rate calculation module, a PHS prediction module, a thermal stress index HSI calculation module, a thermal stress grading evaluation module and a human body thermal stress warning module. The method mainly includes the steps of 1) monitoring the real-time heart rate under working conditions; 2) calculating the real-time metabolic rate; 3) calculating physiological parameters and human physiological heat production and heat dissipation through a PSH model; 4) calculating and outputting the actual vaporization heat loss Ereq and the maximum vaporization heat loss Emax; 5) outputting the real-time thermal stress index HIS of a tester; 6) predicting and judging the risk level signals; 7) outputting the thermal stress evaluation level and warning signals by a controller. Accordingto the method, convenient safe evaluation guarantee can be provided for labor protection and occupational injury reduction of labor groups in high temperature operation related industries.

The invention relates to a plate turnover machine on a brick pressing machine. The plate turnover machine is composed of a plate turnover rack and rotating arm rods. The number of the rotating arm rods is two. The two ends of each rotating arm rod are symmetrically and consistently provided with deep grooves with the thickness matched with that of a clamp plate. The two rotating arm rods are arranged in parallel, the middles of the two rotating arm rods are fixed to the same plate turnover rotating shaft, and the deep grooves in the same ends of the two rotating arm rods are combined into a dual clamping opening. According to the plate turnover machine, the rotating arm rods are utilized for clamping the empty clamp plate, the two rotating arm rods rotate to reverse the clamp plate, a second conveying line is ingeniously utilized and beaten, and green brick shred residues left on the clamp plate are shaken to fall into the position below the plate turnover rack; and the green brick shred residues left on the empty clamp plate can be automatically cleared away, flying dust is small, the health of operators is facilitated, and occupational diseases are reduced.

The invention discloses an electronic device with an adjustable height, which comprises a display module, a processing device, a fixed component, a connecting component and a positioning component. The fixed component is fixedly connected with the display module and is provided with a first positioning part. The connecting component comprises a connecting part and an articulating part which is articulated with the processing device, and the connecting part is in slip connection with the fixed component and is provided with a plurality of second positioning parts. The positioning component fixes the first positioning part on one of the plurality of the second positioning parts so as to adjust the relative positions of the fixed component and the connecting component.

The invention discloses a multifunctional nursing belt, and relates to the field of medical care. The nursing belt comprises a nursing belt main body with a first side and a second side which are opposite to each other; two nursing belt side belts are arranged on each side, and one end of each nursing belt side belt is connected to the nursing belt main body; magic tapes are respectively arrangedon the four nursing belt side belts; a plurality of carrying handles are arranged on the nursing belt main body; and the nursing belt side belts located on the two opposite sides correspond to each other in pairs, are oppositely arranged, and are approximately located on the same straight line. According to the multifunctional nursing belt, multiple functions of turning over, fixing and transferring are integrated, nursing personnel can conveniently complete the operations on a patient alone, the working efficiency is improved, and potential injuries are reduced.

The invention provides a noddle folding machine and a noddle folding method. The noddle folding machine comprises a first rail extending in an X-axis, a first displacement member is slidingly disposedon the first rail, a second rail extending in a Y-axis is disposed on the first displacement member, a second displacement member is slidingly disposed on the second rail, a third rail extending in aZ-axis is disposed on the second displacement member, a third displacement member is slidingly disposed on the third rail, and the third displacement member is provided with a gripping device for gripping noodles, wherein the X-axis, the Y-axis and the Z-axis are perpendicular to each other. A control unit is electrically connected to the first displacement member, the second displacement member,the third displacement member and the gripping device and is used for controlling the first displacement member, the second displacement member, the third displacement member and the gripping deviceto operate according to predetermined timing.