63results about How to "Stable fore and aft" patented technology

The invention discloses a device for continuously adjusting the distance between a diffuser and a spray pipe of a hypersonic speed free jet wind tunnel. The device comprises horizontal distance adjusting mechanisms and a sliding mechanism, and the horizontal distance adjusting mechanisms are installed on a diffuser equal-straight section and evenly distributed in the circumferential direction of the diffuser equal-straight section; and the sliding mechanism is a vertically-installed adjusting rod, the lower end of the adjusting rod is fixed to a diffuser contraction section, the upper end of the adjusting rod is hung on a horizontal guide rail fixed to the upper wall face of a test section, and the adjusting rod moves front and back along a horizontal guide rail to drive the horizontal distance adjusting mechanisms to move front and back to adjust the distance delta d between the diffuser contraction section and the spray pipe. The device for continuously adjusting the distance betweenthe diffuser and the spray pipe of the hypersonic velocity free jet flow wind tunnel is simple in structure and low in manufacturing cost; the use process is convenient, efficient and safe, the adjustment time can be greatly shortened, and the test preparation efficiency is improved; and the distance between the diffuser and the spray pipe is large in adjustment range, and wind tunnel test requirements can be flexibly met.

The invention discloses a conveniently disassembled and assembled bracket for an LED lamp. The bracket comprises a base. The upper surface of the base is fixedly connected to a fixing block; first chutes are formed in two side faces of the fixing block; a first slide block is slidably connected in each first chute; the right side face of each first slide block is fixedly connected to a first movable plate; a sliding wheel is arranged at the bottom of each first movable plate; a squeezing plate is in lap joint with the right side face of each first movable plate; and the right side face of eachsqueezing plate is fixedly connected to the left side face of a fixed plate through a first elastic device. According to the conveniently disassembled and assembled bracket for the LED lamp disclosedby the invention, by cooperation of the first chutes, the first slide blocks, the first movable plates, the squeezing plates, the first elastic devices, second chutes, second slide blocks, clamping slots, a clamping block and a second elastic device, when the bracket is damaged, the bracket is more conveniently detached for maintenance, so that it is unnecessary for people to replace the whole bracket, and therefore, the loss of people is reduced to a certain extent.

The invention discloses a surface layer polishing device for ecological board material production. The device comprises device main outer frames, a motor controller, a shift knob, a first motor and asecond motor. The motor controller is fixedly mounted on the left sides of the bottoms of the device main outer frames, the shift knob is fixedly arranged on the front faces above the left sides of the device main outer frames, hinge rods are hinged to the middle positions of the inner walls of the device main outer frames correspondingly, movable blocks are inserted into the hinge rods, and firstsprings are fixedly mounted above the movable blocks. The bottoms of the left sides and the right sides of bearing boards are hinged to the hinge rods correspondingly, the hinge rods are hinged to the inner walls of the device main outer frames, when ecological boards are put on the bearing boards, the bearing boards sink due to the gravity influence, the hinge rods on the two sides are driven torotate and deflect, clamping blocks mounted above the hinge rods deflect, the ecological boards are clamped, and the situation that the ecological boards skew when bearing force in polishing operation is effectively avoided.

The invention discloses high-precision textile equipment. The bottom end of a base is fixedly connected with a damping pad through bolts, anti-skid lines are arranged at the lower end of the damping pad, two supporting plates are symmetrically and fixedly connected to the upper end of the base, a rotating roller is arranged at the upper end between the two supporting plates, and rotating shafts are fixedly connected to the two ends of the rotating roller. The equipment has the advantages that cloth moving between a limiting roller and the rotating roller is tightly pressed through the limitingroller, so that output of the cloth on the rotating roller is stable, the problem that the cloth wrinkles when the cloth is not consistent after separating from the rotating roller is avoided, and therefore the cutting precision of the cloth on a workbench is improved. A rubber sleeve fixedly sleeving a pressing roller achieves an anti-skid function so that the cloth cannot deviate left and right, therefore the precision of the cloth on the workbench is improved, and the cutting precision is improved. By adjusting the distance between a pressing block and the cloth, the pressing effect of thepressing roller under the pressing block is optimal, and the cutting precision is improved.

The invention discloses an easy-to-use wrinkle-avoiding textile printing-dyeing apparatus, comprising a bottom plate; a vertical plate is fixedly connected to each side of the upper surface of the bottom plate; each of opposing sides of the two vertical plates is provided with a slide groove, the top and bottom of the inner wall of each slide groove are each provided with a limiting groove, a slider and a limiter are slidably connected in each slide groove and the corresponding limiting groove respectively, opposing sides of the four limiters in two paired groups are fixedly connected to the tops and bottoms of two sliders respectively, and the opposing sides of the two sliders are fixedly connected to one sides of two connection plates respectively. The easy-to-use wrinkle-avoiding textile printing-dyeing apparatus has the advantages that by modifying printing-dyeing rollers, it is possible to, when a slide plate is pressed down, for a support rod to push a U-shaped plate to move down; through the downward movement in coordination with the use of rollers, it is possible for the support rod to slide stably on the rollers, so that the support may smoothly drive the printing-dyeing roller nested in a U-shaped plate to move up and down and that cloth can be printed and dyed stably.

The invention relates to a medicine medicament production robot. The robot comprises a bottom plate, a locking telescopic device is installed on the bottom plate, and a placing frame is arranged in the middle of the upper end of the locking telescopic device; two fixed adjusting devices are installed on the locking telescopic device, the two fixed adjusting devices are located on the left side andthe right side of the locking telescopic device in opposite directions, and a movable clamping device is installed on the fixed adjusting device. According to the robot, the problems that in medicinebottle packaging process of an existing pharmacy factory production, medicine bottles filled with medicine are temporarily stored by manual, the medicine bottle needs to be taken out manually, a fixing measure is lacked in a medicine bottle storage and placing process, the medicine bottles collide among one another in a conveying process, and the medicine bottles are easy to be broke, the chemical change of the medicine is prone to be caused in the shaking process of medicine bottle, so that using effect of medicine is influenced, bottle frames with different specifications need to be selected by the medicine bottles of different specifications, the operation is complex, labor intensity is high, stability is poor, working efficiency is low and the like can be solved by the medicine medicament production robot.

The invention discloses a steam oven door anti-deformation supporting structure. The steam oven door anti-deformation supporting structure comprises a supporting structure body. The supporting structure body is located at the bottom of a steam oven. The supporting structure body comprises a supporting frame and an adjustable supporting plate assembly. The adjustable supporting plate assembly is movably clamped on the supporting frame. The adjustable supporting plate assembly comprises a supporting plate and an adjusting plate. The supporting plate is located below the adjusting plate, and theadjusting plate and the supporting plate are adjustably connected. A mounting method includes the steps that a, the supporting frame is assembled; b, the adjustable supporting plate assembly is assembled; c, the adjustable supporting plate assembly and the supporting frame are spliced; and d, the anti-deformation supporting structure and the steam oven are mounted. The bottom face of an oven dooris supported and lifted through the supporting structure when the oven door is in an opened state, thus, bending deformation and the like of the joint of the oven door and an oven body are effectivelyavoided, meanwhile, the supporting structure can be adjusted according to the actual thicknesses of different oven doors, it is guaranteed that the oven door is stably supported, and the applicationrange of the supporting structure is widened.

The invention provides a slidable supporting device used for an optical fiber preform cutting apparatus. The slidable supporting device comprises a frame, a positioning mechanism and sliding mechanisms mounted on the frame, wherein the positioning mechanism is mounted on a slidable supporting platform, and the sliding mechanisms are symmetrically arranged at the left and right ends of the slidable supporting platform; each sliding mechanism comprises a guide rail and two positioning rollers arranged on a same roller support; the guide rail is mounted on the frame through a guide rail supporting seat; two positioning rollers are arranged above and below the guide rail in a correspondence way and are slidable on the guide rail along an axial direction; the slidable supporting platform is mounted on the upper end of the roller support; and the positioning mechanism comprises a supporting assembly and a compressing assembly. According to the invention, the slidable supporting platform can steadily and smoothly move back and forth along the guide rail, so the quality of a cutting section is guaranteed; and through starting of a cylinder, the compressing assembly is driven to compress a an optical fiber preform, six degrees of freedom of the space of the compressing assembly are confined, so movement or rotation of the preform caused by cutting force during cutting is avoided.

The invention discloses a multifunctional apartment bed. The multifunctional apartment bed comprises a bed board, the left side face and the right side face of the bed board are fixedly connected withthe opposite faces of two bed legs respectively, and mosquito net shelves are fixedly connected to the upper surfaces of the two bed legs; the upper surface of the bed board is fixedly connected withthe lower surface of a box body, a through hole is formed in the front surface of the box body, a handle is arranged in the through hole, and the back of the handle is fixedly connected with the front surface of a first desktop; the back of the first desktop is fixedly connected with the back of the inner wall of the box body through a telescopic device, and the lower surface of the first desktopis fixedly connected with the upper surfaces of first slide blocks. According to the multifunctional apartment bed, through the mutual cooperation of a telescopic rod, a first spring, the first desktop, the first slide blocks, first slide grooves, pulleys, a first slide sleeve, a first slide rod, second springs, clamping grooves and the handle, people do not need to get out of the bed to use a computer for study, great convenience is brought to people's life, and people's learning and working efficiency is improved.

In a tensioner (100)having a ratchet mechanism composed of annular teeth (122) on a plunger (120) and an expansible resilient ring (130)disposed in a groove (116)formed in the inner peripheral surface of a plunger-accommodating hole (111)in a tensioner housing, the rear surfaces of the annular teeth have a steep slope (122b), and the front surfaces of the annular teeth (122)have a gradual slope with a convex curvature such that the rate of change of the slope decreases proceeding in the direction of retraction of the plunger (120).

The invention discloses an efficient relining manipulator. The efficient relining manipulator comprises a car frame system, a main beam traveling mechanism, a lining transferring trolley, a hydraulicsystem, a cart drive system, an electrical system and a crane system, wherein the main beam traveling mechanism is arranged at one end of the car frame system; the upper portion of the main beam traveling mechanism is sleeved with the lining transferring trolley; and a crane telescopic rod is arranged at one end of the interior of the main beam traveling mechanism in a penetrating mode. Hydraulictelescopic pumps on the crane system are arranged outside, thereby being convenient to maintain; rolling wheels can drive the crane system and the hydraulic system to be rotated and adjusted by 360 degrees, the second hydraulic telescopic pump can drive a crane to vertically turn over and be adjusted through a hydraulic rod and a connection board, and the third hydraulic telescopic pump and the fourth hydraulic telescopic pump on the crane are matched to extend front and back together, so that the working width and the working adjusting range of the crane on the manipulator are improved, and the working position is adjusted more accurately; and the relining manipulator is high in overload capacity, elaborate in design, flexible in action and capable of meeting operation in various narrow spaces.

The invention discloses a relining manipulator crane span structure. The relining manipulator crane span structure comprises a stand, cantilever beams, a relining trolley, guard bars and side joint frames; the two cantilever beams are arranged in the middle of the stand in parallel; the relining trolley is arranged between the two cantilever beams in a sleeving mode; the guard bars are longitudinally arranged on the upper portions of the middles of the two cantilever beams; the two ends of the two cantilever beams are vertically provided with sleeve clamping bases; and the side joint frames are arranged below the two sleeve clamping bases. The relining manipulator crane span structure has the beneficial effects that a worker puts a lining plate on a lining conveying trolley by standing onthe cantilever beams to convey the lining plate, and when the worker stands on the cantilever beams, the worker leans on or holds extending bars of the guard bars, so that operation safety of the worker on the crane span structure is ensured; and hydraulic pumps below the two ends of the guard bars drive the extending bars to ascend or descend through hydraulic rods, so that the use height of theoverall guard bars is adjusted, it is ensured that workers of different heights can use the guard bars more comfortably and conveniently, and the use flexibility and safety are ensured.

The invention relates to an automatic gear shifting child safety seat which comprises a base and a seat body, a rotary stepping motor is fixedly arranged on the seat body, a rotary large gear disc is rotatably arranged on the seat body in a supporting mode, the rotary stepping motor is connected with a rotary small gear, the rotary small gear is meshed with an inner gear ring of the rotary large gear disc, and a rotary disc seat is supported on the rotary large gear disc. A feeding stepping motor is arranged on the rotating disc seat through a fixing seat, the feeding stepping motor drives a feeding gear, and the feeding gear is meshed with a driving toothed plate arranged in the lower rear portion of the supporting seat body. The automatic gear shifting child safety seat is simple in structure, capable of automatically shifting gears front and back and rotating and convenient to operate.

The invention provides a laser positioning device for blade processing. The device comprises a bottom plate; a vertical plate is fixedly connected with the left side of the top of the bottom plate; ahorizontal plate is fixedly connected with the top of the vertical plate; supporting rods are fixedly connected with the front side of the right side and the right side of the vertical plate; electricextensible rods are fixedly connected with the right sides of the supporting rods; connecting plates fixedly connect the opposite sides of the electric extensible rods; arc-shaped clamping plates arefixedly connected with the opposite sides of the connecting plates; and a motor is fixedly connected with the left side of the horizontal plate. The device has the advantage of multi-directional adjustment of the laser positioning device, and solves the problem that existing laser positioning devices are undiversified in structure and fail to realize multi-directional adjustment of laser positioning lamps in the process of application, so effectively laser positioning of a blade cannot be realized, processing efficiency is thereby affected, and applicability of the laser positioning devices is lowered.

The present invention provides a lens barrel, which can mitigate the vibration generated by an electric drive source (such as a motor or the like) to realize the silence. The lens barrel comprises an electric drive source (31, 32); a first frame (15) served as one of multiple frame parts of the lens barrel (1), a second frame (14) provided with the electric drive source and moving relative to the first frame; a flexible printed substrate arranged between the electric drive source and the first frame to electrically connect the electric drive source with the first frame; and a guide plate (30) provided with a fixed part (30a) and a crimping part (30b) and shaped in a beam shape to be elastic. The lens barrel is internally provided with the flexible printed substrate. One of the first frame and the second frame is fixedly provided with the fixed part, so as to enable the crimping part to abut against the second frame or the first frame.

The invention discloses an irrigation device for planting of fruits and relates to the technical field of planting. The irrigation device comprises a baseplate, a water tank is fixedly connected to the left side of the upper surface of the baseplate, a water pump is arranged in the water tank, the lower surface of the water pump is fixedly connected to the lower surface of the inner wall of the water tank, the upper surface of the water pump is communicated with one end of a water conveying hose, the other end of the water conveying hose penetrates through the upper surface of the water tank and is communicated with a nozzle, and the lower surface of the nozzle is fixedly connected to a movable rod. According to the irrigation device for planting of the fruits, through arrangement of a motor, an output shaft of the motor rotates to drive a movable plate to rotate, and the movable plate drives a rolling wheel to rotate; when the rotating rolling wheel is in lap joint with a connecting plate, the connecting plate is driven to move forward, and the connecting plate drives a gear rod to move forward so that the nozzle can be rotated backward for spraying and circularly spray water to the fruits front and back, the spraying area is increased, the spraying efficiency is improved, and convenience is brought to people when the fruits are irrigated.

The invention particularly relates to a high-voltage shore power centralized monitoring system. The system comprises a shore-side shore power system located on the shore side and shore-side power connection equipment used for being connected to ship-side power connection equipment, and the shore-side shore power system is connected with an original ship power distribution board through the shore-side power connection equipment, the ship-side power connection equipment, a shore power connection power distribution cabinet, a transformer and a shore power access control screen in sequence; the high-voltage shore power centralized monitoring system is connected with a shore power intelligent monitoring system used for monitoring the system state and remote communication; the ship-side power connection equipment comprises a cable winch and a shore power switching-on interlocking mechanism, and the cable winch and the shore power switching-on interlocking mechanism are arranged on the base; and the shore power switching-on interlocking mechanism comprises a machine body, and the machine body is provided with a toggle switch and a secondary protection mechanism. The system has the beneficial effects that: ship power access and shore power access are controlled in a unified manner, switching-on interlocking is realized, the shore power access operation efficiency and stability are improved, meanwhile, the cable winch, the ship power access equipment and the switching-on interlocking mechanism are managed in an integrated manner, and the system is safer and more reliable.

The invention relates to the technical field of lock cylinder machining, in particular to a carrying and positioning mechanism for lock cylinder machining and a working method thereof. The carrying and positioning mechanism comprises a base table, a protection frame, a frame body, a moving assembly, a second hydraulic cylinder and a clamping and fixing assembly, a lock cylinder is clamped through the clamping and fixing assembly to be positioned, the lock cylinder is firmly clamped through a chuck, the lock cylinder can be moved away from a conveying chain through the moving assembly, so that the mechanism can position the lock cylinder more reliably, the use reliability of the mechanism is further improved, the clamping and fixing assembly is installed on the moving assembly, the clamping and fixing assembly can position the lock cylinder to a wider range, more powerful positioning support is provided for other mechanisms to machine the lock cylinder, the compatibility of the mechanism is improved, the situation that the lock cylinder deviates in the conveying process of the conveying chain is avoided through the arrangement of a guide rail, and then it is guaranteed that the mechanism operates more stably, reliably and accurately.

The present invention provides a cage for a coke guiding vehicle, which is supported on the frame of the coke guiding vehicle so that it can move forward and backward relative to the carbonization chamber of the coke oven via wheels, and has: A pair of flat plates guiding the path, and a bracket supporting the pair of flat plates in an upright position substantially parallel to each other are characterized in that a heat insulating material is interposed between each flat plate and the bracket. Accordingly, in this cage for a coke guiding vehicle, the heat transfer from the pair of flat plates directly in contact with the high-temperature coke to the bracket is blocked by the heat insulating material, thereby suppressing deformation of the bracket due to coke heat.

The invention discloses an exercise bicycle. The exercise bicycle comprises a supporting framework, and the supporting framework comprises a triangular frame which is formed by taking a connecting rod for connecting a front supporting leg and a rear supporting leg as a transverse rod, taking an inclined rod of the front supporting leg, a supporting frame of a treading device and a connecting block as an inclined rod and taking a seat stand column as a vertical rod and connecting three components together. The lower end of the inclined rod is fixed to the middle of a horizontal rod of the front supporting leg. The rear end of the connecting rod is fixed to the front side of the middle of a V-shaped rod which forms the rear supporting leg and is provided with a backward opening. A seat supporting device is installed at the top end of the seat stand column. A seat cushion supporting plate is arranged at the top of the seat stand column, a crank shifting device is installed at the front end of the seat cushion supporting plate, a positioning column matched with positioning holes is arranged on a shifting block of the crank shifting device, and a locking torsion spring for fastening the positioning column in one positioning hole is arranged on the crank shifting device. The supporting framework of the exercise bicycle is simple, compact and firm in structure and small in occupied area. The seat supporting device is firm in supporting and convenient to adjust front and back.

The invention relates to the technical field of welding robots, and discloses an automatic welding robot for industrial workshop machining. The automatic welding robot for industrial workshop machining comprises a base, wherein fixing plate are fixedly connected to the left side and the right side of the top of the base; two first sliding rods are fixedly connected between the two fixing plates; sliding blocks sleeve surfaces of the two first sliding rods; a first driving motor is fixedly connected to the bottoms of the sliding blocks; an output shaft of the first driving motor is fixedly sleeved with a gear; gear teeth are arranged at the top of the base; the surfaces of the gear are engaged with the surfaces of the gear teeth; and the top of the sliding blocks is fixedly connected with asecond bearing. According to the automatic welding robot for industrial workshop machining, the gear is driven to rotate together by the rotation of the first driving motor, the gear is engaged withthe gear teeth at the top of the base, and the first driving motor is fixedly connected to the bottom of the sliding blocks, so that the sliding blocks are driven to slide on the surface of the firstsliding rods by the rotation of the gear, and the welding robot is driven to move left and right.

The invention discloses an acquisition mechanism of a high- and low-altitude discharging smoke purification device. The acquisition mechanism comprises a rotation disc, a hanging seat, a pull disc, installation plates, an auxiliary disc and a hydraulic pump, wherein the hanging seat is arranged below the rotation disc, the pull disc is arranged below a middle part of the hanging seat, and the installation plates are arranged at two ends of the pull disc. The acquisition mechanism has the beneficial effects that a pull rod is driven to forwards and backwards move through a gear by a motor in the rotation disc, so that the two installation plates are driven to forwards and backwards move in a reciprocating way; a motor in a matched sleeve block forwards and backwards roll in a groove in a rail plate by a roller, so that an inner electrical plate is driven to forwards and backwards move, the air mobility is improved, and meanwhile, dust impurity acquisition and absorption of the inner electrical plate and a side electrical plate on the mechanism are enabled to more comprehensive and thorough; a turning plate can be buckled and turned over from the bottom of a plate body through pulling a clamping block on the turning plate by a worker and by compression motion of a spring in a clamping frame, dust impurity in the plate body of the inner electrical plate is convenient to clean by the worker, and the application convenience is ensured.

The invention relates to an automatic sewage cleaning system for a pig farm. The automatic sewage cleaning system for the pig farm comprises a house body, wherein a house body ceiling is connected tothe upper portion of the house body; a ventilating window and a ventilating fan are arranged on a side surface of the house body; an electric curtain connected to the outer side surface of the house body is arranged above the ventilating window; a corridor is arranged in the middle of the interior of the house body; a plurality of compartments are arranged on two sides of the corridor; a fan is connected to the upper portion of each compartment; solar panels are laid on the top surface of the house body ceiling; a plurality of electric lamps are connected to the lower portion of the house bodyceiling; an electric heater is also connected to the inner side surface of the house body; a matching room is connected to the outer side of the house body; a material mill and an automatic feeding device are arranged in the matching room; the material mill is connected with the automatic feeding device through a pipeline; a self-waterer is connected to the interior of each compartment; a hole plate is arranged on the bottom surface of each compartment; a groove is formed in the lower portion of each hole plate; a methane tank is arranged at the left end of each groove; and a feces cleaning device capable of moving left and right is arranged in each groove. According to the pig farm, automatic feeding and water drinking of pigs can be realized, and besides, feces of the pigs can be effectively treated, so that the air quality in the pig farm is guaranteed.

The invention discloses a calcining system for nickel-iron alloy production. The calcining system comprises a top plate, a bottom plate and a support, wherein a movable plate is arranged at the bottomof the top plate, and two punching dies are fixed to the lower surface wall of the movable plate; an air cylinder is arranged between the movable plate and the top plate; a fixing frame is fixed to the upper surface wall of the bottom plate; two longitudinally-distributed threaded rods are arranged in the fixing frame; and a lower die base is screwed to the outer parts of the two threaded rods. In the calcining system, the two lower die bases are arranged on the upper surface wall of the fixing frame, a plurality of female dies are formed in the upper surface walls of the lower die bases in the longitudinal direction, the two punching dies are fixed to the lower surface wall of the movable plate, and two products can be punched at a time; and through the arrangement of a first motor, a first belt and the threaded rods, the lower die bases can move in the front-back direction, punching of the multiple products is achieved, and compared with a traditional punching device, the efficiencyis higher.

The invention relates to the technical field of milling tools, in particular to a dry etching lower electrode surface coating milling machining tool and a machining method thereof. First fixing shafts are arranged between two rolling wheels and second sliding blocks, and one end of each first fixing shaft is welded to one side of the corresponding second sliding block. The rolling wheels are rotationally connected to the ends, away from the second sliding blocks, of the first fixing shafts, so that the second sliding blocks and second sliding rails are shielded by the rolling wheels and the first fixing shafts, connection between the second sliding blocks and the second sliding rails is firmer, and the whole dry etching lower electrode surface coating milling tool is more stable when moving front and back. The stability of the dry etching lower electrode surface coating milling machining tool during operation is improved. The rolling wheels roll in tracks of the second sliding rails, so that when a second fixing plate slides on the second sliding rails, the second fixing plate can move front and back more smoothly by increasing rolling of the rolling wheels, and the smoothness of the dry etching lower electrode surface coating milling machining tool moving back and forth is improved.

The invention discloses a tailoring device used for a PV piece, and relates to the technical field of plastic machining. The device comprises a bottom plate, two sliding grooves are formed in the upper surface of the bottom plate, the two sliding grooves are formed in the left side and the right side of the upper surface of the bottom plate correspondingly, sliding blocks are in sliding connectioninto the sliding grooves, a sliding device is fcixedly connected to the upper surfaces of the sliding blocks, one end of the front face of the sliding device and one end of the back face of the sliding device are fixedly connected with baffles, and the lower surfaces of the two baffles are fixedly connected to the upper surface of the bottom plate. According to the tailoring device used for the PV piece, the sliding device, a second sliding rod, a second sliding sleeve, a nut, a screw, a third sliding rod, a third sliding sleeve and a blade are arranged, the blade can tailors the PV piece directly, compared with manual tailoring, the straight-line tailoring standard is mastered, the condition that the tailoring path deviates is avoided, the tailoring effect of the PV piece is ensured, andconvenience is brought to tailoring of PV piece.

The invention relates to the technical field of spring mattress processing, and discloses a hot melt adhesive sprayer for a spring mattress. The hot melt adhesive sprayer comprises a bottom plate, thefour corners of the lower surface of the bottom plate are rotationally connected with the tops of four sets of roller carriers correspondingly, rollers are rotationally connected to the bottoms of the roller carriers, and two sets of first sliding grooves are formed in the left side and the right side of the top of the bottom plate correspondingly; and the interiors of the two sets of first sliding grooves are slidably connected with the bottoms of two sets of sliding blocks correspondingly. According to the hot melt adhesive sprayer for the spring mattress, through the cooperative arrangement of a driving motor, a cam and a spring, a placing plate achieves the effect of front-back circulating movement, so that a fixing frame can uniformly spray hot melt adhesives on a fabric; and throughcooperative arrangement of a hydraulic cylinder and a pressing plate, the fabric can be flatly fixed on the placing plate; the hot melt adhesives in an adhesive storage barrel can be conveyed into anadhesive collection box through the cooperative arrangement of an air blower and an adhesive outlet pipe; and the hot melt adhesives on the fabric can be quickly dried through the cooperative arrangement of an air blowing device and an electric heating wire.