A wire winding device for processing stainless steel spring wire

Abstract

A wire winding device for processing stainless steel spring wire, which relates to the technical field of spring wire processing, includes: a wire feeding mechanism, a wire winding mechanism, a taking mechanism, a packaging mechanism, and a wire cutting mechanism; this device can automatically feed the stainless steel spring wire, effectively saving labor; this device can wind the automatic spring wire into a coil and achieve uniform winding, and moreover, effectively avoid the generation of tension when winding the spring wire, which causes the spring wire to not be tightly wound, improving work efficiency; this device can automatically bundle and fix the wound spring wire coil, improving the utilization rate of the device; this device can automatically cut the spring wire, saving labor and improving efficiency at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of spring wire processing, and particularly relates to a wire winding device for processing stainless steel spring wire. Background Art

[0002] A stainless steel spring refers to a spring that can work in weak corrosive media such as electronics, air, steam, water, and chemical corrosive media such as acids, alkalis, and salts. The stainless steel spring is an elastic element that requires corrosion resistance, medium temperature resistance, and non-magnetic use in many industries such as chemical machinery and electronics. When the stainless steel spring is loaded, it can produce a large elastic deformation, converting mechanical work or kinetic energy into deformation energy. After unloading, the deformation of the stainless steel spring disappears and returns to its original state, converting the deformation energy into mechanical work or kinetic energy.

[0003] In the production process of stainless steel spring wire, it is necessary to wind the spring wire for subsequent use. In the existing wire winding equipment, the outside of the wound spring wire coil is not pushed in time, resulting in the loosening of the wound spring wire coil. Moreover, most of the existing equipment requires manual bundling after wire winding, which is time-consuming and laborious.

[0004] Therefore, a wire winding device for processing stainless steel spring wire is needed. This device can automatically feed the stainless steel spring wire, effectively saving manpower; it can wind the automatic spring wire into a coil and achieve uniform winding. Moreover, it can effectively avoid the generation of tension during spring wire winding, making the spring wire unable to be tightly wound, and improving work efficiency; it can automatically bundle and fix the wound spring wire coil, improving the utilization rate of the equipment; it can automatically cut the spring wire, saving manpower and improving efficiency at the same time. Summary of the Invention

[0005] In view of the above technical problems, the present invention provides a wire winding device for processing stainless steel spring wire to solve the above problems.

[0006] The technical solution adopted by the present invention is: a wire winding device for processing stainless steel spring wire, including: a wire feeding mechanism, a wire winding mechanism, a taking mechanism, a packaging mechanism, and a wire cutting mechanism; the support frame I of the wire feeding mechanism is fixedly installed in a predetermined installation area on the ground, and the wire feeding mechanism is used for the transfer of stainless steel spring wire; the workbench of the wire winding mechanism is fixedly installed on the ground, and the wire winding mechanism is used for the winding of stainless steel spring wire; the conveyor belt of the taking mechanism is fixedly installed on the ground through a rod, and the taking mechanism is used for the taking and transfer of the spring wire coil after winding; there are two packaging mechanisms, and the frames of the screw slider groups III of the two packaging mechanisms are fixedly installed on the ground through a rod, and the packaging mechanism is used for the bundling and packaging of the spring wire coil; the support frame III of the wire cutting mechanism is fixedly installed on the side of the support frame I, and the wire cutting mechanism is used for the cutting of stainless steel spring wire;

[0007] The described wire winding mechanism further includes: telescopic rods, push plates, winding tables, bevel gear I, motor II, cross, disc II, motor III, electric cylinder I, top plate; there are four telescopic rods, which are respectively fixedly installed on four plates on the workbench, and the piston rod ends of the four telescopic rods are fixedly connected to the rear sides of the four push plates; the lower end face of the winding table is rotatably installed on the upper end face of the workbench, and the lower end shaft of the winding table passes through the middle circular hole of the workbench; bevel gear I is rotatably installed on the lower end face of the workbench, and bevel gear I is fixedly connected to the lower end shaft of the winding table; motor II is fixedly installed on the lower end face of the workbench, and one of its motor shafts is fixedly connected to a bevel gear, and this bevel gear meshes with bevel gear I; the cross is fixedly installed on the winding table, and there are cruciform slot holes on the cross; disc II is rotatably installed on the lower end face of the cross, there are four symmetrically arranged inclined slots on disc II, and there is a ring of teeth on the periphery of disc II; motor III is fixedly installed on the cross, and its motor shaft is fixedly connected to a gear, and this gear meshes with the teeth on the periphery of disc II; there are four top plates, small rods are fixedly installed at the lower ends of the four top plates, and the small rods slide in the corresponding slot holes on the cross, and the small rods at the lower ends of the top plates slide in the corresponding inclined slots on disc II; the cylinder part of electric cylinder I is fixedly installed on the plate on the cross, and the piston rod end of electric cylinder I is fixedly connected to an electric clamp.

[0008] Preferably, a spring is installed on the periphery of the telescopic rod, one end of the spring is connected to the plate on the workbench, and the other end of the spring is connected to the outside of the push plate.

[0009] Preferably, the wire feeding mechanism further includes: a gear set, a wire supporting disc, a wire shifting disc, a vertical frame, a disc I, a limiting frame, a small gear I, a motor I; the shafts of the two gears in the gear set are respectively rotatably installed in two circular holes on the plate on the support frame I; the shaft of the wire supporting disc is fixedly installed on the side of the lower gear in the gear set, and the periphery of the wire supporting disc is in contact with the spring wire; the shaft of the wire shifting disc is fixedly installed on the side of the upper gear in the gear set; the vertical frame is fixedly installed on the side of the support frame I, and there is a groove on the inner side of the vertical frame; the limiting frame is slidably installed in the groove on the inner side of the vertical frame, there is a horizontal groove on the limiting frame, and a limiting rod is fixedly installed on the side of the limiting frame, and the stainless steel spring wire is wound around the limiting rod on the side of the limiting frame before winding; the shaft of disc I is rotatably installed in the circular hole on the side of the vertical frame, a small rod is fixedly installed on the side of disc I, and the small rod slides in the horizontal groove on the limiting frame, and a large gear is fixedly installed on the rear side of disc I; small gear I is rotatably installed in the circular hole on the side plate of the support frame I, and small gear I meshes with the large gear on the rear side of disc I; motor I is fixedly installed on the support frame I, its motor shaft is fixedly connected to the shaft of a gear in the gear set, and the shaft of motor I is connected to the shaft of small gear I through a synchronous belt.

[0010] Preferably, a raised block is fixedly installed on the side surface of the wire transfer disc. The periphery of the raised block has a matte texture, and the raised block is in clearance contact with the spring wire.

[0011] Preferably, the taking mechanism includes: a conveyor belt, a lead screw slider group I, a support plate I, a clamping frame, a lead screw II, and a motor IV; the conveyor belt is fixedly installed on the ground through a rod; the lead screw slider group I includes a frame, a lead screw, a motor, and a slider. The frame is fixedly installed in a predetermined installation area on the ground through a rod. The lead screw is rotatably installed in the frame. The motor is fixedly installed on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The slider is slidably installed in the frame. The threaded hole on the slider is in threaded cooperation with the lead screw. A multi-stage electric cylinder is fixedly installed at the lower end of the slider, and the piston rod end of the multi-stage electric cylinder is fixedly connected to the upper end surface of the support plate I; there are two clamping frames, and the two clamping frames are respectively fixedly installed at the lower end of the support plate I; the lead screw II is rotatably installed in the circular hole inside the clamping frame. One end of the lead screw II is fixedly connected to the shaft of the motor fixedly installed on the side surface of the clamping frame. The lead screw inside the lead screw II has threads with opposite directions from the middle to both ends. The two sliders on the lead screw II are respectively installed on the threads with opposite directions of the lead screw; there are two motor IVs, and the two motor IVs are slidably installed on the clamping frame, and the upper ends of the two motor IVs are respectively connected to the lower ends of the two sliders on the lead screw II.

[0012] Preferably, the encapsulation mechanism includes: a lead screw slider group III, a support frame II, a transition ring, a cross plate, a wire taking column, a motor V, a lead screw slider group IV, a disc III, a motor VI, a support plate II, and a rectangular block; the structure of the lead screw slider group III is the same as that of the lead screw slider group I, and the frame of the lead screw slider group III is fixedly installed on the ground through a rod; the support frame II is fixedly connected to the upper end surface of the slider in the lead screw slider group III; the transition ring is fixedly installed on the support frame II, and through holes are provided on both the upper and lower sides of the transition ring; the cross plate is slidably installed in the slot on the side of the support frame II, and the upper end surface of the cross plate contacts the lowermost iron wire placed in the support frame II; the wire taking column is rotatably installed inside the transition ring, a horizontal small hole is provided on the periphery of the wire taking column, and only one iron wire is allowed to enter this small hole. This small hole on the wire taking column is intermittently aligned with the upper and lower through holes of the transition ring; the motor V is fixedly installed on the side of the transition ring, and its motor shaft is fixedly connected to the side of the transition ring; the lead screw slider group IV includes a frame, a lead screw, and a slider. The frame is fixedly installed in a predetermined installation area on the ground through a rod, the lead screw is rotatably installed inside the frame, one end of the lead screw is fixedly connected to one end of the lead screw in the lead screw slider group III through a synchronous belt, the slider is slidably installed inside the frame, and the threaded hole on the slider is in threaded cooperation with the lead screw; the disc III is rotatably installed in the lower circular hole of the slider in the lead screw slider group IV, a circle of teeth is provided on the periphery of the disc III, the lower end of the disc III is fixedly connected to an electric cylinder, and the piston rod end of this electric cylinder is fixedly connected to the upper end surface of the support plate II. Two grooves are provided on the lower end surface of the support plate II, and a small plate is fixedly installed at the middle position of the lower end of the support plate II; the motor VI is fixedly installed on the side of the slider in the lead screw slider group IV, and its motor shaft is fixedly connected to a gear, and this gear meshes with the teeth on the periphery of the disc III; there are two rectangular blocks, and the two rectangular blocks are respectively fixedly and slidably installed in the two grooves on the lower end surface of the support plate II. Springs are installed inside the two rectangular blocks, and the other ends of the springs are respectively connected to both sides of the lower plate on the lower end surface of the support plate II. An electric clamp is fixedly installed at the lower end of the rectangular block.

[0013] Preferably, springs are installed on both sides of the cross plate, and the other ends of the springs are respectively connected to the plates on both sides of the transition ring.

[0014] Preferably, the wire cutting mechanism further includes: an auxiliary plate, a U-shaped plate, and an electric cylinder II; there are two auxiliary plates, the inner end shafts of the two auxiliary plates are respectively rotatably installed in two circular holes on the side of the support frame III, a Z-shaped groove is provided on the auxiliary plate, and a blade is fixedly installed at the outer end of the auxiliary plate; small rods are respectively fixedly installed on the sides of the two end parts of the encapsulation mechanism 0 and the taking mechanism, and the small rods slide in the Z-shaped grooves on the two auxiliary plates respectively; the cylinder part of the electric cylinder II is fixedly installed on the support frame III, and the piston rod end of the electric cylinder II is fixedly connected to the side of the U-shaped plate.

[0015] The beneficial effects of the present invention compared with the prior art are:

[0016] 1. The present invention is started by Motor I, which drives the gear set to rotate. The gear set drives the wire support plate and the wire transfer plate to rotate towards each other simultaneously. When the wire transfer plate rotates to contact the spring wire, it will drive the spring wire to move forward a certain distance, realizing the transfer of the spring wire and saving manpower.

[0017] 2. The present invention is started by Motor II, which drives the bevel gear I to rotate. The bevel gear I drives the winding table to rotate, and the winding table drives the cross to rotate. At this time, the spring wire is wound around the periphery of the four top plates. At this time, the four push plates hold the outside of the stainless steel spring wire being wound, preventing the tension generated during the winding of the spring wire from making the spring wire unable to be wound tightly.

[0018] 3. The present invention is started by Motor VI, which drives the disc III to rotate. The disc III drives the support plate II to rotate, and the support plate II drives the two rectangular blocks to rotate while clamping both ends of the iron wire, so that the iron wire twists the spring wire. Due to the iron wire being twisted, the two ends of the iron wire will gradually shorten. At this time, the springs in the two rectangular blocks will be compressed synchronously, ensuring that the iron wire successfully binds the spring wire roll and improving the equipment utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the first angle of the overall part of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the second angle of the overall part of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the first angle of the wire feeding mechanism of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the second angle of the wire feeding mechanism of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the first angle of the wire winding mechanism of the present invention.

[0024] Figure 6 It is a schematic structural diagram of the second angle of the wire winding mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of the taking mechanism of the present invention.

[0026] Figure 8 It is a partial structural schematic diagram of the taking mechanism of the present invention.

[0027] Figure 9 It is a schematic diagram of the encapsulation mechanism of the present invention.

[0028] Figure 10 It is a partial structural schematic diagram of the encapsulation mechanism of the present invention.

[0029] Figure 11Schematic diagram of the wire cutting mechanism of the present invention.

[0030] Reference numerals: 1, wire feeding mechanism; 2, wire winding mechanism; 3, taking mechanism; 4, encapsulation mechanism; 5, wire cutting mechanism; 101, support frame I; 102, gear set; 103, wire supporting disc; 104, wire shifting disc; 105, vertical frame; 106, disc I; 107, limiting frame; 108, pinion I; 109, motor I; 201, workbench; 202, telescopic rod; 203, push plate; 204, winding table; 205, bevel gear I; 206, motor II; 207, cross; 208, disc II; 209, motor III; 210, electric cylinder I; 211, top plate; 301, conveyor belt; 302, lead screw slider group I; 303, support plate I; 304, clamping frame; 305, lead screw II; 306, motor IV; 401, lead screw slider group III; 402, support frame II; 404, transition ring; 405, cross plate; 406, material taking column; 407, motor V; 408, lead screw slider group IV; 409, disc III; 410, motor VI; 411, support plate II; 412, rectangular block; 501, support frame III; 502, auxiliary plate; 503, U-shaped plate; 504, electric cylinder II. Detailed implementation manners

[0031] The technical solutions of the present invention will be further specifically described below through embodiments in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0032] It should be noted that in this article, some connection methods, such as "fixed connection, fixed installation", refer to the fixation of two components including but not limited to welding, screw and nut fixation, adhesion, riveting, interference fit, etc. between two components.

[0033] In an alternative embodiment of the present invention, as Figures 1 - 11As shown in the figure, a wire winding device for processing stainless steel spring wire includes: a wire feeding mechanism 1, a wire winding mechanism 2, a picking mechanism 3, a packaging mechanism 4, and a wire cutting mechanism 5; the support frame I 101 of the wire feeding mechanism 1 is fixedly installed in a predetermined installation area on the ground, and the wire feeding mechanism 1 is used for the transfer of stainless steel spring wire; the workbench 201 of the wire winding mechanism 2 is fixedly installed on the ground, and the wire winding mechanism 2 is used for the winding of stainless steel spring wire; the conveyor belt 301 of the picking mechanism 3 is fixedly installed on the ground through a rod, and the picking mechanism 3 is used for the picking and transfer of the spring wire coil after winding; there are two packaging mechanisms 4, and the frames of the lead screw slider groups III 401 of the two packaging mechanisms 4 are fixedly installed on the ground through a rod, and the packaging mechanism 4 is used for the bundling and packaging of the spring wire coil; the support frame III 501 of the wire cutting mechanism 5 is fixedly installed on the side of the support frame I 101, and the wire cutting mechanism 5 is used for the cutting of stainless steel spring wire;

[0034] As Figure 5 , Figure 6As shown in the figure, the wire winding mechanism 2 further includes: a telescopic rod 202, a push plate 203, a winding table 204, a bevel gear Ⅰ 205, a motor Ⅱ 206, a cross 207, a disc Ⅱ 208, a motor Ⅲ 209, a linear cylinder Ⅰ 210, and a top plate 211; there are four telescopic rods 202, and the four telescopic rods 202 are respectively fixedly installed on four plates on the workbench 201. The piston rod ends of the four telescopic rods 202 are fixedly connected to the rear sides of the four push plates 203. The push plate 203 can hold the outside of the stainless steel spring wire being wound to prevent the tension generated during the winding of the spring wire from making the spring wire unable to be wound tightly; the lower end surface of the winding table 204 is rotatably installed on the upper end surface of the workbench 201, and the lower shaft of the winding table 204 passes through the middle circular hole of the workbench 201; the bevel gear Ⅰ 205 is rotatably installed on the lower end surface of the workbench 201, and the bevel gear Ⅰ 205 is fixedly connected to the lower shaft of the winding table 204; the motor Ⅱ 206 is fixedly installed on the lower end surface of the workbench 201, and a bevel gear is fixedly connected to its motor shaft. This bevel gear meshes with the bevel gear Ⅰ 205; specifically, when the motor Ⅱ 206 is started, it drives the bevel gear Ⅰ 205 to rotate, and the bevel gear Ⅰ 205 drives the winding table 204 to rotate; the cross 207 is fixedly installed on the winding table 204, and the cross 207 is provided with a cross-shaped slot; the disc Ⅱ 208 is rotatably installed on the lower end surface of the cross 207. The disc Ⅱ 208 is provided with four centrally symmetric inclined slots, and a ring of teeth is provided on the periphery of the disc Ⅱ 208; the motor Ⅲ 209 is fixedly installed on the cross 207, and its motor shaft is fixedly connected to a gear. This gear meshes with the teeth on the periphery of the disc Ⅱ 208; specifically, when the motor Ⅲ 209 is started, it drives the disc Ⅱ 208 to rotate; there are four top plates 211. Small rods are fixedly installed at the lower ends of the four top plates 211. The small rods slide in the corresponding slots on the cross 207, and the small rods at the lower ends of the top plates 211 slide in the inclined slots on the corresponding disc Ⅱ 208; the cylinder part of the linear cylinder Ⅰ 210 is fixedly installed on the plate on the cross 207, and the piston rod end of the linear cylinder Ⅰ 210 is fixedly connected to an electric clamp. This electric clamp can hold the end of the stainless steel spring wire to assist the equipment in winding the wire;Specifically, when the stainless steel spring wire is wound, first, the end of the transferred spring wire is clamped by the electric clamp at the piston rod end of the electric cylinder I 210, and the transferred spring wire is located between a corresponding top plate 211 and a push plate 203. Then, the motor III 209 is started to drive the disc II 208 to rotate, and the disc II 208 drives the four top plates 211 to move outward at the same time to adjust the inner diameter of the spring wire to be wound. After the adjustment is completed, the motor II 206 is started to drive the bevel gear I 205 to rotate, and the bevel gear I 205 is rotated. Gear I 205 drives the winding table 204 to rotate, and the winding table 204 drives the cross 207 to rotate. At this time, the spring wire is wound around the periphery of the four top plates 211. At this time, the four push plates 203 support the outer side of the stainless steel spring wire being wound to prevent the tension generated when the spring wire is wound from making the spring wire unable to be tightly wound. After the spring wire is wound, the electric clamp at the piston rod end of the electric cylinder I 210 releases the clamped end of the spring wire, and then the electric cylinder I 210 contracts to avoid affecting the completed spring wire winding. ;

[0035] In an optional embodiment of the present invention, Figure 5 As shown, a spring is installed on the periphery of the telescopic rod 202 , one end of the spring is connected to the plate on the workbench 201 , and the other end of the spring is connected to the outer side of the push plate 203 .

[0036] In an optional embodiment of the present invention, Figure 3 , Figure 4As shown in the figure, the wire feeding mechanism 1 further includes: a gear set 102, a wire supporting disc 103, a wire shifting disc 104, a vertical frame 105, a disc Ⅰ 106, a limiting frame 107, a pinion Ⅰ 108, and a motor Ⅰ 109; the shafts of the two gears in the gear set 102 are respectively rotatably installed in two round holes on the board of the support frame Ⅰ 101; the shaft of the wire supporting disc 103 is fixedly installed on the side of the lower gear in the gear set 102, and the periphery of the wire supporting disc 103 contacts the spring wire and supports the spring wire; the shaft of the wire shifting disc 104 is fixedly installed on the side of the upper gear in the gear set 102; the vertical frame 105 is fixedly installed on the side of the support frame Ⅰ 101, and a groove is provided inside the vertical frame 105; the limiting frame 107 is slidably installed in the groove inside the vertical frame 105, a horizontal groove is provided on the limiting frame 107, a limiting rod is fixedly installed on the side of the limiting frame 107, and the stainless steel spring wire passes through the limiting rod on the side of the limiting frame 107 before winding, and the limiting rod on the side of the limiting frame 107 controls the position of the spring wire; the shaft of the disc Ⅰ 106 is rotatably installed in the round hole on the side of the vertical frame 105, a small rod is fixedly installed on the side of the disc Ⅰ 106, the small rod slides in the horizontal groove on the limiting frame 107, and a large gear is fixedly installed on the rear side of the disc Ⅰ 106; specifically, when the disc Ⅰ 106 rotates, it drives the cross 207 to move up and down, and further drives the spring wire to move up and down; the pinion Ⅰ 108 is rotatably installed in the round hole on the side panel of the support frame Ⅰ 101, and the pinion Ⅰ 108 meshes with the large gear on the rear side of the disc Ⅰ 106; the motor Ⅰ 109 is fixedly installed on the support frame Ⅰ 101, its motor shaft is fixedly connected to the shaft of a gear in the gear set 102, and the shaft of the motor Ⅰ 109 is connected to the shaft of the pinion Ⅰ 108 through a synchronous belt; specifically, when transferring the stainless steel spring wire, first, manually pass one end of the spring wire through the middle position of the wire supporting disc 103 and the wire shifting disc 104, and at the same time, manually pass the spring wire through the limiting rod on the side of the limiting frame 107, and move the end of the spring wire to the electric clamp at the piston rod end of the electric cylinder Ⅰ 210, so that the electric clamp clamps the spring wire. Then, the motor Ⅰ 109 is started to drive the gear set 102 to rotate, and the gear set 102 drives the wire supporting disc 103 and the wire shifting disc 104 to rotate towards each other at the same time. When the wire shifting disc 104 rotates to contact the spring wire, it will drive the spring wire to move forward a certain distance to realize the transfer of the spring wire; the motor Ⅰ 109 also drives the pinion Ⅰ 108 to rotate, and the pinion Ⅰ 108 drives the large gear on the rear side of the disc Ⅰ 106 to rotate slowly, and then drives the disc Ⅰ 106 to rotate. The disc Ⅰ 106 drives the cross 207 to move up and down slowly, and further drives the spring wire to move up and down slowly, increasing the winding amount while avoiding the spring wire only winding to one place, realizing the uniform winding of the spring up and down.

[0037] In an alternative embodiment of the present invention, as Figure 3As shown in the figure, a convex block is fixedly installed on the side of the wire shifting disc 104. The periphery of the convex block is frosted. The convex block is in clearance contact with the spring wire. When the wire shifting disc 104 rotates to contact the spring wire, it will drive the spring wire to move forward a certain distance.

[0038] In an alternative embodiment of the present invention, as Figure 7 、 Figure 8 shown in the figure, the taking mechanism 3 includes: a conveyor belt 301, a lead screw slider group I 302, a support plate I 303, a clamping frame 304, a lead screw II 305, and a motor IV 306; the conveyor belt 301 is fixedly installed on the ground through a rod, and the conveyor belt 301 can move the wound spring wire coil out of the equipment; the lead screw slider group I 302 includes a frame, a lead screw, a motor, and a slider. The frame is fixedly installed in a predetermined installation area on the ground through a rod. The lead screw is rotatably installed in the frame. The motor is fixedly installed on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The slider is slidably installed in the frame. The threaded hole on the slider is in threaded cooperation with the lead screw. A multi-stage electric cylinder is fixedly installed at the lower end of the slider. The piston rod end of the multi-stage electric cylinder is fixedly connected to the upper end surface of the support plate I 303; there are two clamping frames 304, and the two clamping frames 304 are respectively fixedly installed at the lower end of the support plate I 303; the lead screw II 305 is rotatably installed in the round hole inside the clamping frame 304. One end of the lead screw II 305 is fixedly connected to the shaft of the motor fixedly installed on the side of the clamping frame 304. The lead screw inside the lead screw II 305 has threads with opposite directions from the middle to both ends. The two sliders on the lead screw II 305 are respectively installed on the threads with opposite directions of the lead screw; there are two motors IV 306, and the two motors IV 306 are slidably installed on the clamping frame 304, and the upper ends of the two motors IV 306 are respectively connected to the lower ends of the two sliders on the lead screw II 305. The two motors IV 306 moving inward can clamp the spring wire coil; specifically, when the spring wire is wound, the multi-stage electric cylinder at the lower end of the slider in the lead screw slider group I 302 extends, pushing the support plate I 303 downward, and then driving the two clamping frames 304 downward. The two clamping frames 304 respectively drive the two motors IV 306 corresponding to them downward until the two motors IV 306 are respectively located on both sides of the spring wire coil. Then, the motor on the side of the clamping frame 304 starts, driving the corresponding lead screw II 305 to rotate, and then driving the two motors IV 306 to move, so that the two motors IV 306 clamp the spring wire coil. Then, the multi-stage electric cylinder at the lower end of the slider in the lead screw slider group I 302 contracts and returns to its original position, driving the support plate I 303 to move upward and return to its original position. Then, the spring wire coil clamped by the motor IV 306 moves upward. Then, the lead screw slider group I 302 works, driving the support plate I 303 to move, so that the support plate I 303 moves to the position between the two lead screw slider groups III 401. At this time, the spring wire coils clamped by the motor IV 306 are both directly above the two transition rings 404, which is convenient for the equipment to bundle the spring wire coils.

[0039] In an alternative embodiment of the present invention, as Figure 9 , Figure 10As shown in the figure, the encapsulation mechanism 4 includes: a lead screw slider group III 401, a support frame II 402, a transition ring 404, a horizontal plate 405, a material taking column 406, a motor V 407, a lead screw slider group IV 408, a disc III 409, a motor VI 410, a support plate II 411, and a rectangular block 412; the structure of the lead screw slider group III 401 is the same as that of the lead screw slider group I 302, and the frame of the lead screw slider group III 401 is fixedly installed on the ground through a rod; the support frame II 402 is fixedly connected to the upper end surface of the slider in the lead screw slider group III 401, and multiple iron wires for bundling spring wire coils are placed inside the support frame II 402; the transition ring 404 is fixedly installed on the support frame II 402, and through holes are provided on both the upper and lower sides of the transition ring 404; the horizontal plate 405 is slidably installed in the slot on the side of the support frame II 402, and the upper end surface of the horizontal plate 405 is in contact with the lowermost iron wire placed inside the support frame II 402. Specifically, when the uppermost iron wire inside the support frame II 402 is taken away, the spring on the horizontal plate 405 contracts, causing the horizontal plate 405 to push the iron wire upward, facilitating the material taking column 406 to pick up the next iron wire; the material taking column 406 is rotatably installed inside the transition ring 404, and a horizontal small hole is provided on the periphery of the material taking column 406, and only one iron wire is allowed to enter this small hole. This small hole on the material taking column 406 is intermittently aligned with the upper and lower through holes of the transition ring 404; the motor V 407 is fixedly installed on the side of the transition ring 404, and its motor shaft is fixedly connected to the side of the transition ring 404; the lead screw slider group IV 408 includes a frame, a lead screw, and a slider. The frame is fixedly installed in a predetermined installation area on the ground through a rod, the lead screw is rotatably installed inside the frame, one end of the lead screw is fixedly connected to one end of the lead screw in the lead screw slider group III 401 through a synchronous belt, the slider is slidably installed inside the frame, and the threaded hole on the slider is in threaded cooperation with the lead screw; the disc III 409 is rotatably installed in the lower circular hole of the slider in the lead screw slider group IV 408, a circle of teeth is provided on the periphery of the disc III 409, the lower end of the disc III 409 is fixedly connected to an electric cylinder, and the piston rod end of this electric cylinder is fixedly connected to the upper end surface of the support plate II 411. Two grooves are provided on the lower end surface of the support plate II 411, and a small plate is fixedly installed at the middle position of the lower end of the support plate II 411; the motor VI 410 is fixedly installed on the side of the slider in the lead screw slider group IV 408, and its motor shaft is fixedly connected to a gear, and this gear meshes with the teeth on the periphery of the disc III 409; specifically, when the motor VI 410 is started, it drives the disc III 409 to rotate; there are two rectangular blocks 412, and the two rectangular blocks 412 are respectively fixedly and slidably installed in the two grooves on the lower end surface of the support plate II 411. Springs are installed inside the two rectangular blocks 412, and the other ends of the springs are respectively connected to both sides of the lower plate on the lower end surface of the support plate II 411. An electric clamp is fixedly installed at the lower end of the rectangular block 412, and the electric clamp can pick up the iron wire for bundling the spring wire coil;Specifically, when bundling the spring wire coil, a wire needs to be taken. When taking the wire, the motor Ⅴ 407 starts, driving the material taking column 406 to rotate. When the horizontal small hole on the material taking column 406 contacts the uppermost end of the support frame Ⅱ 402, the horizontal small hole on the material taking column 406 takes away the uppermost wire in the support frame Ⅱ 402. Then, the material taking column 406 continues to rotate. When the horizontal small hole on the material taking column 406 aligns with the upper through hole of the transition ring 404, the electric cylinder at the lower end of the disc Ⅲ 409 extends, driving the support plate Ⅱ 411 to move downward. The support plate Ⅱ 411 drives the rectangular block 412 to move downward, so that the electric clamp at the lower end of the rectangular block 412 clamps the wire used to bundle the spring wire coil. Then, the electric cylinder at the lower end of the disc Ⅲ 409 contracts and returns to its original position, driving the support plate Ⅱ 411 to move upward and return to its original position, and further driving the support plate Ⅱ 411 to move upward. The support plate Ⅱ 411 drives the electric clamp on the rectangular block 412 to clamp both ends of the wire and move upward to a suitable position, while the lower end of the wire is located at the lower end of the spring wire coil. At this time, the wire is in a U shape. When bundling the spring wire coil, the motor Ⅵ 410 starts, driving the disc Ⅲ 409 to rotate. The disc Ⅲ 409 drives the support plate Ⅱ 411 to rotate. The support plate Ⅱ 411 drives the two rectangular blocks 412 to clamp both ends of the wire and rotate, so that the wire twists the spring wire coil. Due to the twisting of the wire, both ends of the wire will gradually shorten. At this time, the springs in the two rectangular blocks 412 will be compressed synchronously, ensuring that the wire successfully bundles the spring wire coil, saving manpower and improving work efficiency.

[0040] In an alternative embodiment of the present invention, as Figure 10 shown, springs are installed on both sides of the cross plate 405, and the other ends of the springs are respectively connected to the plates on both sides of the transition ring 404.

[0041] In an alternative embodiment of the present invention, as Figure 11As shown in the figure, the wire cutting mechanism 5 further includes: an auxiliary plate 502, a U-shaped plate 503, and an electric cylinder II 504. There are two auxiliary plates 502. The inner end shafts of the two auxiliary plates 502 are respectively rotatably installed in two circular holes on the side of the support frame III 501. The auxiliary plate 502 is provided with a Z-shaped groove. A blade is fixedly installed at the outer end of the auxiliary plate 502, and the blade can cut the stainless steel spring wire. Small rods are respectively fixedly installed on the sides of the two ends of the taking mechanism 3 of the packaging mechanism 40, and the small rods slide in the Z-shaped grooves on the two auxiliary plates 502 respectively. The cylinder part of the electric cylinder II 504 is fixedly installed on the support frame III 501, and the piston rod end of the electric cylinder II 504 is fixedly connected to the side of the U-shaped plate 503. Specifically, when the electric cylinder II 504 contracts, the electric cylinder II 504 drives the U-shaped plate 503 to move leftward, and the U-shaped plate 503 drives the blades at the outer ends of the two auxiliary plates 502 to open. When the electric cylinder II 504 extends, the electric cylinder II 504 pushes the U-shaped plate 503 to move outward, and the U-shaped plate 503 drives the blades at the outer ends of the two auxiliary plates 502 to close, cutting the stainless steel spring wire.

[0042] Working principle: The device can automatically feed the stainless steel spring wire, effectively saving manpower; the device can wind the automatic spring wire into a coil and achieve uniform winding. Moreover, it can effectively avoid the generation of tension when winding the spring wire, making the spring wire unable to be tightly wound, and improving work efficiency; the device can automatically bundle and fix the wound spring wire coil, improving the utilization rate of the device; the device can automatically cut the spring wire, saving manpower and improving efficiency at the same time.

[0043] When winding the stainless steel spring wire, first, the spring wire needs to be transferred. When transferring the stainless steel spring wire, first, manually pass one end of the spring wire through the middle position of the wire supporting disc 103 and the wire transferring disc 104. At the same time, manually pass the spring wire through the limiting rod on the side of the limiting frame 107, and move the end of the spring wire to the electric clamp at the piston rod end of the electric cylinder I 210, so that the electric clamp clamps the spring wire. Then, the motor I 109 is started, driving the gear set 102 to rotate. The gear set 102 drives the wire supporting disc 103 and the wire transferring disc 104 to rotate towards each other simultaneously. When the wire transferring disc 104 rotates to contact the spring wire, it will drive the spring wire to move forward a certain distance, realizing the transfer of the spring wire.

[0044] The transferred spring wire is clamped at its end by the electric clamp at the piston rod end of the electric cylinder Ⅰ210, and the transferred spring wire is located between a corresponding top plate 211 and a push plate 203. Then, the motor Ⅲ209 is started to drive the disk Ⅱ208 to rotate. The disk Ⅱ208 drives the four top plates 211 to move outward simultaneously to adjust the inner diameter of the spring wire coil to be wound. After the adjustment is completed, the motor Ⅱ206 is started to drive the bevel gear Ⅰ205 to rotate. The bevel gear Ⅰ205 drives the winding table 204 to rotate, and the winding table 204 drives the cross 207 to rotate. At this time, the spring wire is wound around the periphery of the four top plates 211. At this time, the four push plates 203 hold against the outer side of the stainless steel spring wire being wound to prevent the tension generated during the winding of the spring wire from making the spring wire unable to be wound tightly. At this time, when the motor Ⅱ206 is started for winding, the motor Ⅰ109 still feeds the wire to assist in winding, avoiding a large spring wire tension during the winding of the equipment, effectively protecting the equipment and increasing the service life of the equipment. At the same time, the motor Ⅰ109 drives the pinion Ⅰ108 to rotate, and the pinion Ⅰ108 drives the large gear at the rear of the disk Ⅰ106 to rotate slowly, thereby driving the disk Ⅰ106 to rotate. The disk Ⅰ106 drives the cross 207 to move up and down slowly, thereby driving the spring wire to move up and down slowly, increasing the winding amount while avoiding the spring wire being wound only in one place, realizing the uniform up and down winding of the spring; after the spring wire winding is completed, the electric clamp at the piston rod end of the electric cylinder Ⅰ210 releases the spring wire end it clamps. Then, the electric cylinder Ⅰ210 contracts to avoid affecting the completed spring wire coil.

[0045] When the spring wire winding is completed, the multi-stage electric cylinder at the lower end of the slider in the lead screw slider group Ⅰ302 extends to push the support plate Ⅰ303 downward, thereby driving the two clamping frames 304 downward. The two clamping frames 304 respectively drive the two motors Ⅳ306 corresponding to them downward until the two motors Ⅳ306 are respectively located on both sides of the spring wire coil. Then, the motor on the side of the clamping frame 304 is started to drive the corresponding lead screw Ⅱ305 to rotate, thereby driving the two motors Ⅳ306 to move so that the two motors Ⅳ306 clamp the spring wire coil. Then, the multi-stage electric cylinder at the lower end of the slider in the lead screw slider group Ⅰ302 contracts and returns, thereby driving the support plate Ⅰ303 to move upward and return, and then the spring wire coil clamped by the motor Ⅳ306 moves upward. Then, the lead screw slider group Ⅰ302 works to drive the support plate Ⅰ303 to move so that the support plate Ⅰ303 moves to the position between the two lead screw slider groups Ⅲ401. At this time, the spring wire coils clamped by the motors Ⅳ306 are both directly above the two transition rings 404, facilitating the equipment to bundle the spring wire coils.

[0046] When bundling the spring wire coil, a wire needs to be taken. When taking the wire, the motor V407 starts, driving the material taking column 406 to rotate. When the horizontal small hole on the material taking column 406 contacts the uppermost end of the support frame II402, the horizontal small hole on the material taking column 406 takes away the uppermost wire in the support frame II402. Then, the material taking column 406 continues to rotate. When the horizontal small hole on the material taking column 406 rotates to align with the upper through hole of the transition ring 404, the electric cylinder at the lower end of the disk III409 extends, driving the support plate II411 to move downward. The support plate II411 drives the rectangular block 412 to move downward, so that the electric clamp at the lower end of the rectangular block 412 clamps the wire used to bundle the spring wire coil. Then, the electric cylinder at the lower end of the disk III409 contracts and returns to its original position, driving the support plate II411 to move upward and return to its original position. Further driving the support plate II411 to move upward, the support plate II411 drives the electric clamp on the rectangular block 412 to clamp the two ends of the wire and move upward to a suitable position, while the lower end of the wire is located at the lower end of the spring wire coil. At this time, the wire is in a U shape. When bundling the spring wire coil, the motor VI410 starts, driving the disk III409 to rotate. The disk III409 drives the support plate II411 to rotate. The support plate II411 drives the two rectangular blocks 412 to clamp the two ends of the wire and rotate, so that the wire twists the spring wire coil. Due to the wire being twisted, the two ends of the wire will gradually shorten. At this time, the springs in the two rectangular blocks 412 will be compressed synchronously to ensure that the wire successfully bundles the spring wire coil. Then, the lead screw slider group I302 works again, driving the support plate I303 to move directly above the conveyor belt 301. At this time, the motor IV306 moves outward at the same time, placing the bundled spring wire coil on the conveyor belt 301. The conveyor belt 301 moves the spring wire coil out of the equipment, saving manpower and improving work efficiency.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winding device for stainless steel spring wire processing, characterized in that: include: A wire feeding mechanism (1), a wire winding mechanism (2), a picking mechanism (3), a packaging mechanism (4), and a wire cutting mechanism (5); the support frame I (101) of the wire feeding mechanism (1) is fixedly mounted on a predetermined installation area on the ground, and the wire feeding mechanism (1) is used for transferring the stainless steel spring wire; the workbench (201) of the wire winding mechanism (2) is fixedly mounted on the ground, and the wire winding mechanism (2) is used for winding the stainless steel spring wire; the conveyor belt (301) of the picking mechanism (3) is fixedly mounted on the ground through a rod, and the picking mechanism (3) is used for picking up and transferring the spring wire coil after winding is completed; there are two packaging mechanisms (4), and the frames of the two screw slider groups III (401) of the packaging mechanisms (4) are fixedly mounted on the ground through a rod, and the packaging mechanisms (4) are used for Bundling package of spring wire coils; the support frame III (501) of the wire cutting mechanism (5) is fixedly mounted on the side of the support frame I (101), and the wire cutting mechanism (5) is used for cutting the stainless steel spring wire; the wire winding mechanism (2) further comprises: a telescopic rod (202), a push plate (203), a winding table (204), a bevel gear I (205), a motor II (206), a cross (207), a disc II (208), a motor III (209), an electric cylinder I (210), and a top plate (211); there are four telescopic rods (202), and the four telescopic rods (202) are respectively fixedly mounted on four plates on the workbench (201), and the piston rod ends of the four telescopic rods (202) are connected to the four push plates (203). The lower end surface of the rolling platform (204) is rotatably mounted on the upper end surface of the workbench (201), and the lower end shaft of the rolling platform (204) passes through the middle circular hole of the workbench (201); the bevel gear I (205) is rotatably mounted on the lower end surface of the workbench (201), and the bevel gear I (205) is fixedly connected to the lower end shaft of the rolling platform (204); the motor II (206) is fixedly mounted on the lower end surface of the workbench (201), and its motor shaft is fixedly connected to a bevel gear, and the bevel gear and the bevel gear I (205) are meshed with each other; the cross (207) is fixedly mounted on the rolling platform (204), and the cross (207) is provided with a cross-shaped slot; the disc II (208) is rotatably mounted on the lower end surface of the cross (207), and the disc II (208) is fixedly mounted on the lower end surface of the cross (207). The disk II (208) is provided with four centrally symmetrical oblique grooves, and the outer periphery of the disk II (208) is provided with a circle of gear teeth; the motor III (209) is fixedly mounted on the cross (207), and its motor shaft is fixedly connected to a gear, and the gear meshes with the gear teeth on the outer periphery of the disk II (208); there are four top plates (211), and small rods are fixedly mounted on the lower ends of the four top plates (211), and the small rods slide in the corresponding slots on the cross (207), and the small rods at the lower ends of the top plates (211) slide in the corresponding oblique grooves on the disk II (208); the cylinder body of the electric cylinder I (210) is fixedly mounted on the plate on the cross (207), and the piston rod end of the electric cylinder I (210) is fixedly connected to an electric clamp; The packaging mechanism (4) comprises: a screw slider group III (401), a support frame II (402), a transition ring (404), a horizontal plate (405), a material taking column (406), a motor V (407), a screw slider group IV (408), a disc III (409), a motor VI (410), a support plate II (411), and a rectangular block (412); the structure of the screw slider group III (401) is the same as that of the screw slider group I (302), and the frame of the screw slider group III (401) is fixedly mounted on the ground by a rod; the support frame II (402) is fixedly connected to the upper end surface of the slider in the screw slider group III (401); the transition ring (404 ) is fixedly mounted on the support frame II (402), and through holes are provided on the upper and lower sides of the transition ring (404); the horizontal plate (405) is slidably mounted in the slot on the side of the support frame II (402), and the upper end surface of the horizontal plate (405) contacts the lowest iron wire placed in the support frame II (402); the material taking column (406) is rotatably mounted on the inner side of the transition ring (404), and a small horizontal hole is provided on the outer periphery of the material taking column (406), and this small hole only allows one iron wire to enter, and this small hole on the material taking column (406) is intermittently aligned with the upper and lower through holes of the transition ring (404); the motor V (407) is fixedly mounted on the side of the transition ring (404), and its motor shaft is fixedly mounted on the side of the transition ring (404). The screw slider group IV (408) comprises a frame, a screw and a slider. The frame is fixedly mounted on a predetermined mounting area on the ground through a rod. The screw is rotatably mounted in the frame. One end of the screw is fixedly connected to one end of the screw in the screw slider group III (401) through a synchronous belt. The slider is slidably mounted in the frame. The threaded hole on the slider matches the thread of the screw. The disk III (409) is rotatably mounted in the lower end circular hole of the slider in the screw slider group IV (408). The outer periphery of the disk III (409) is provided with a circle of gear teeth. The lower end of the disk III (409) is fixedly connected to an electric cylinder. The piston rod end of the electric cylinder is fixedly connected to the upper end surface of the support plate II (411). The support plate II The lower end surface of the support plate II (411) is provided with two grooves, and a small plate is fixedly installed in the middle position of the lower end of the support plate II (411); the motor VI (410) is fixedly installed on the side of the slider in the lead screw slider group IV (408), and its motor shaft is fixedly connected to a gear, and the gear is meshed with the gear teeth on the outer periphery of the disc III (409); there are two rectangular blocks (412), and the two rectangular blocks (412) are respectively slidably installed in the two grooves of the lower end surface of the support plate II (411), and springs are installed on the inner sides of the two rectangular blocks (412), and the other ends of the springs are respectively connected to the two sides of the lower plate of the lower end surface of the support plate II (411), and an electric clamp is fixedly installed at the lower end of the rectangular block (412).

2. A wire winding device for processing stainless steel spring wire according to claim 1, characterized in that: A spring is installed on the periphery of the telescopic rod (202), one end of the spring is connected to the plate on the workbench (201), and the other end of the spring is connected to the outer side of the push plate (203).

3. A wire winding device for processing stainless steel spring wire according to claim 1, characterized in that: The wire feeding mechanism (1) further comprises: a gear set (102), a wire support disk (103), a wire transfer disk (104), a vertical frame (105), a disc I (106), a limiting frame (107), a small gear I (108), and a motor I (109); the shafts of the two gears in the gear set (102) are respectively rotatably mounted in two circular holes on a plate on the support frame I (101); the shaft of the wire support disk (103) is fixedly mounted on the side of the lower gear in the gear set (102), and the outer periphery of the wire support disk (103) is in contact with the spring wire; the shaft of the wire transfer disk (104) is fixedly mounted on the side of the upper gear in the gear set (102); the vertical frame (105) is fixedly mounted on the side of the support frame I (101), and a groove is provided on the inner side of the vertical frame (105); the limiting frame (107) is slidably mounted in the groove on the inner side of the vertical frame (105), and the limiting frame A horizontal groove is provided on the support frame (107), a limit rod is fixedly installed on the side of the limit frame (107), and the stainless steel spring wire roll passes through the limit rod on the side of the limit frame (107) before winding; the disc I (106) is rotatably installed in the circular hole on the side of the vertical frame (105), a small rod is fixedly installed on the side of the disc I (106), and the small rod slides in the horizontal groove on the limit frame (107), and a large gear is fixedly installed on the rear side of the disc I (106); the small gear I (108) is rotatably installed in the circular hole of the side panel of the support frame I (101), and the small gear I (108) and the large gear on the rear side of the disc I (106) are meshed with each other; the motor I (109) is fixedly installed on the support frame I (101), and its motor shaft is fixedly connected to the shaft of a gear in the gear set (102), and the shaft of the motor I (109) is connected to the shaft of the small gear I (108) through a synchronous belt.

4. A wire winding device for processing stainless steel spring wire according to claim 3, characterized in that: A protruding block is fixedly mounted on the side of the wire transfer disk (104), the outer periphery of the protruding block is frosted, and the protruding block is in intermittent contact with the spring wire.

5. A wire winding device for processing stainless steel spring wire according to claim 1, characterized in that: Springs are installed on both sides of the transverse plate (405), and the other ends of the springs are respectively connected to the plates on both sides of the transition ring (404).

6. A wire winding device for processing stainless steel spring wire according to claim 1, characterized in that: The thread cutting mechanism (5) further comprises: an auxiliary plate (502), a U-shaped plate (503), and an electric cylinder II (504); there are two auxiliary plates (502), the inner end shafts of the two auxiliary plates (502) are rotatably mounted in two circular holes on the side of the support frame III (501), the auxiliary plates (502) are provided with Z-shaped grooves, and the outer ends of the auxiliary plates (502) are fixedly mounted with blades; small rods are fixedly mounted on the side surfaces of the two ends of the U-shaped plate (503), and the small rods slide in the Z-shaped grooves on the two auxiliary plates (502); the cylinder body of the electric cylinder II (504) is fixedly mounted on the support frame III (501), and the piston rod end of the electric cylinder II (504) is fixedly connected to the side surface of the U-shaped plate (503).

7. A wire winding device for processing stainless steel spring wire according to claim 1, characterized in that: The picking mechanism (3) comprises: a conveyor belt (301), a screw slider group I (302), a support plate I (303), a clamping frame (304), a screw II (305), and a motor IV (306); the conveyor belt (301) is fixedly mounted on the ground via a rod; the screw slider group I (302) comprises a frame, a screw, a motor, and a slider; the frame is fixedly mounted on a predetermined mounting area on the ground via a rod; the screw is rotatably mounted in the frame; the motor is fixedly mounted on the frame; its motor shaft is fixedly connected to one end of the screw; the slider is slidably mounted in the frame; the threaded hole on the slider matches the thread of the screw; a multi-stage electric cylinder is fixedly mounted on the lower end of the slider; the piston rod end of the multi-stage electric cylinder is fixedly connected to the upper end surface of the support plate I (303) There are two clamping frames (304), and the two clamping frames (304) are respectively fixedly mounted on the lower ends of the support plate I (303); the lead screw II (305) is rotatably mounted in the circular hole inside the clamping frame (304), one end of the lead screw II (305) is fixedly connected to the shaft of the motor fixedly mounted on the side of the clamping frame (304), the lead screw inside the lead screw II (305) is provided with threads in opposite directions from the middle to both ends, and the two sliders on the lead screw II (305) are respectively mounted on the threads in opposite directions of the lead screw; there are two motors IV (306), the two motors IV (306) are slidably mounted on the clamping frame (304), and the upper ends of the two motors IV (306) are respectively connected to the lower ends of the two sliders on the lead screw II (305).

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