Spring mattress production equipment

Abstract

The invention discloses a spring mattress production device, which belongs to the field of mattress processing, and comprises a frame, a first former and a second former, wherein the first former comprises a first fixed plate and a first coil spring assembly, a guide rod is fixed in the middle of the first coil spring assembly, the guide rod comprises a guide straight rod perpendicular to the first fixed plate and an arc guide rod fixed at the end of the guide straight rod; the second former comprises a second fixed plate and a second coil spring assembly, a through hole is opened in the middle of the second fixed plate, a second cutting knife is arranged at the starting coil spring position of the second spring, a first cutting knife is arranged between the first fixed plate and the second fixed plate, and the cutting position of the first cutting knife is adjustable. The spring mattress production device realizes one-step processing and forming of double springs, avoids manual or mechanical sleeve processes, reduces production difficulty, and also saves production time.

Description

Technical Field

[0001] The invention relates to the technical field of mattress processing, and in particular to a spring mattress production device. Background Art

[0002] With the continuous development of spring mattresses, more and more types of pocketed double springs have appeared on the market. For example, Chinese patent CN213605502U discloses a mattress spring, including a mother spring and a child spring arranged in the mother spring through an elastic ring; Chinese patent CN219460733U discloses a double spring structure and a mattress, including an outer spring unit and an inner spring unit arranged inside the outer spring unit; Chinese patent CN205432981U discloses a new spring mattress, including a first spring, a second spring and an inner spring, the first spring and the second spring are alternately arranged to form a rectangular spring array, and each first spring and each second spring is provided with an inner spring.

[0003] At present, the existing bagged double springs are first processed separately and then manually or mechanically sleeved, which undoubtedly increases the production cost and difficulty. Summary of the invention

[0004] The present invention provides a spring mattress production device, aiming to solve the defects existing in the above-mentioned prior art.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A spring mattress production equipment includes a spring forming device, the spring forming device includes a frame, a first former for forming a first spring and a second former for forming a second spring, the first spring and the second spring have the same feeding height and the same discharging direction, the first former includes a first fixed plate fixed to the frame and a first coil spring assembly fixed to the first fixed plate, a guide rod is fixed to the middle of the first coil spring assembly, the guide rod includes a guide straight rod perpendicular to the first fixed plate and an arc guide rod fixed to the end of the guide straight rod; the second former includes a second fixed plate fixed to the frame and a second coil spring assembly fixed to the second fixed plate for forming a second spring, the second fixed plate is provided with a through hole in the middle of the second coil spring assembly for the guide straight rod and the first spring to pass through, a second cutter that can be lifted and lowered is provided at the starting coil spring position of the second spring, the first fixed plate and the second fixed plate are arranged in parallel and a first cutter that can be lifted and lowered is provided between the two, the cutting position of the first cutter is adjustable, and the cutting position of the first cutter is close to the second fixed plate.

[0007] Furthermore, the spring forming device includes a tool adjustment assembly, which includes a driving mechanism, a first rotating mechanism and a second rotating mechanism. The driving mechanism is fixed on the frame, the first rotating mechanism is driven to rotate by the driving mechanism, the second rotating mechanism can rotate relative to the first rotating mechanism, and the first cutting knife can be lifted and lowered on the second rotating mechanism.

[0008] Furthermore, the first rotating mechanism includes a first rotating frame and a first screw mounted on the first rotating frame, and a sliding plate is mounted on the first screw; the second rotating mechanism includes a second rotating frame, a second fixed frame, a lifting assembly and a fastener, an arc-shaped hole is provided on the second rotating frame, a threaded groove is provided on the sliding plate, the fastener passes through the arc-shaped hole and is screwed into the threaded groove, the second fixed frame is fixed on the second rotating frame, the lifting assembly is mounted on the second fixed frame, and the first cutting knife is fixed at the bottom of the lifting assembly.

[0009] Furthermore, the driving mechanism includes a mounting frame, an elliptical plate, a chain, a driving source, a transmission sprocket and a positioning gear, the mounting frame is fixed on the frame, the elliptical plate is fixed on the mounting frame, the elliptical edge of the elliptical plate is provided with serrations, the driving source is used to drive the transmission sprocket, the transmission sprocket is arranged above the elliptical plate, the chain is driven by the transmission sprocket and rotates along the serrations on the elliptical plate, the positioning gear is fixed on the mounting frame and arranged on one side of the transmission sprocket, the first rotating frame is provided with a clamping member for fixing on the chain, the end of the first rotating frame is fixed to the elliptical plate by a first rotating shaft, the elliptical plate is also provided with a guide groove, the first rotating frame is provided with a guide block, and when the first rotating frame rotates, the guide block slides along the guide groove.

[0010] Furthermore, the spring forming device also includes a straightener, a first conveyor, a first feeder, a second feeder, a second conveyor and a feeding piece fixed on the frame in sequence, the straightener includes three rows of straightening wheels arranged in parallel and can allow two steel wires to pass through, the first conveyor and the second conveyor are used to transport the two steel wires respectively, the first feeder and the second feeder are arranged in parallel between the first conveyor and the second conveyor and are used to drive the two steel wires respectively, and the rear end of the feeding piece is provided with the first former and the second former in parallel.

[0011] Further, the first conveyor includes a screw rod A, a first fixed seat, and two upper and lower rows of first conveying wheels arranged on the first fixed seat, one end of the screw rod A is installed on the frame, and the other end is spirally connected to the first fixed seat, the first fixed seat is arranged on the frame, the first conveying wheels in the lower row are fixed on the first fixed seat, and the first conveying wheels in the upper row can be lifted and fixed on the first fixed seat, the first conveying wheels in the upper row and the first conveying wheels in the lower row are arranged alternately up and down, and each of the first conveying wheels is provided with two first conveying rails, and the first conveying rails are used to convey the first steel wire or the second Steel wire; the second conveyor includes a screw rod B, a second fixed seat and two upper and lower rows of second conveying wheels arranged on the second fixed seat, one end of the screw rod B is installed on the frame, and the other end is spirally connected to the second fixed seat, the second fixed seat is arranged on the frame, the second conveying wheels in the lower row are fixed on the second fixed seat, the second conveying wheels in the upper row can be raised and lowered and fixed on the second fixed seat, the second conveying wheels in the upper row and the second conveying wheels in the lower row are staggered up and down, each of the second conveying wheels is provided with two second conveying rails, and the second conveying rails are used to convey the first steel wire or the second steel wire.

[0012] Furthermore, the first feeder includes a first feeding screw, a first feeding frame, and two upper and lower rows of first feeding wheels arranged on the first feeding frame, one end of the first feeding screw is installed on the frame, and the other end is spirally connected to the first feeding frame, the first feeding frame is arranged on the frame, the first feeding wheels in the lower row are fixed on the first feeding frame, and the first feeding wheels in the upper row are fixed on the first feeding frame in a liftable manner, the upper and lower rows of the first feeding wheels are aligned, and each of the first feeding wheels is provided with a first feeding rail for driving the first steel wire or the second steel wire; the second feeder includes a second feeding A feeding screw, a second feeding rack and two upper and lower rows of second feeding wheels arranged on the second feeding rack, one end of the second feeding screw is installed on the frame, and the other end is spirally connected to the second feeding rack, the second feeding rack is arranged on the frame, the second feeding wheels in the lower row are fixed on the second feeding rack, and the second feeding wheels in the upper row are fixed on the second feeding rack in a liftable manner, the upper and lower rows of the second feeding wheels are aligned, and each of the second feeding wheels is provided with a second feeding rail for driving the first steel wire or the second steel wire; the second feeding wheel is arranged on the side of the second feeding rack facing the first feeding wheel.

[0013] Furthermore, it also includes a feeding device, which includes a rotating disk and a plurality of feeding units evenly arranged in a ring along the rotating disk, the feeding unit includes a fixed rod, a sleeve spring rod and two elastic claws, the fixed rod is installed on the rotating disk through a fixing piece, a second rotating shaft is provided at the bottom of the sleeve spring rod, the sleeve spring rod is rotatably arranged at the top of the fixed rod through the second rotating shaft, a first extrusion spring is fixed between the bottom of the sleeve spring rod and the inner wall of the fixed rod, two elastic claws are symmetrically arranged at the top of the sleeve spring rod, a second extrusion spring is fixed between the two elastic claws, one of the elastic claws can rotate relative to the sleeve spring rod and approach the other elastic claw when rotating, and the elastic claw can contact the bottom of the arc guide rod.

[0014] Furthermore, the elastic force of the second pressing spring is smaller than the elastic force of the first pressing spring.

[0015] Furthermore, a limiting ring is fixed on the top of the fixing rod; and a double spring structure is defined between the elastic claw and the limiting ring.

[0016] The beneficial effects of the present invention are:

[0017] 1. By setting the first former and the second former, the first spring is continuously input into the second spring along the guide straight rod, so that the double spring structure of various sizes for mattresses can be formed in one step, avoiding the manual or mechanical sleeve setting process, reducing the production difficulty, and also saving production time;

[0018] 2. The guide rod can offset part of the gravity of the first spring. In addition, the first spring itself has a certain forming elastic force, and the starting coiling position of the second spring can be controlled by the second cutting knife. Therefore, the first spring will not deviate under the guiding action of the guide rod and can smoothly enter the interior of the second spring to realize a double spring structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the spring forming device and the driving mechanism in the present invention;

[0020] Figure 2 It is a structural schematic diagram of the spring forming device in the present invention;

[0021] Figure 3 It is a schematic structural diagram of the first former and the feeding member in the present invention;

[0022] Figure 4 It is a schematic structural diagram of the second former and the feeding member in the present invention;

[0023] Figure 5 It is a structural schematic diagram of the tool adjustment assembly in the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the first rotating mechanism and the second rotating mechanism in the present invention;

[0025] Figure 7 It is a structural schematic diagram of the feeding device in the present invention;

[0026] Figure 8 It is a schematic structural diagram of the feeding unit in the present invention in a non-stressed state;

[0027] Fig. 9 It is a schematic structural diagram of the feeding unit in the present invention under a stress state;

[0028] Fig.10 It is an overall front view of the spring forming device and the feeding device in the present invention.

[0029] In the figure: 100, spring forming device; 1, frame; 2, first former; 21, first fixed plate; 22, first coil spring assembly; 221, first forming telescopic mold; 222, first pitch device; 223, arc-shaped shaping block; 23, guide rod; 231, guide straight rod; 232, arc-shaped guide rod; 3, second former; 31, second fixed plate; 32, second coil spring assembly; 321, second forming telescopic mold; 322, second pitch device; 33, through hole; 4, first Second cutting blade; 5. First cutting blade; 6. Driving mechanism; 61. Mounting frame; 62. Elliptical plate; 63. Chain; 64. Driving source; 65. Transmission sprocket; 66. Positioning gear; 67. Guide groove; 7. First rotating mechanism; 71. First rotating frame; 72. First screw rod; 73. Sliding plate; 74. Clamping member; 75. First rotating shaft; 76. Guide block; 8. Second rotating mechanism; 81. Second rotating frame; 82. Second fixed frame; 83. Lifting assembly; 84 , fastener; 85, arc hole; 9, straightener; 91, straightening wheel; 10, first conveyor; 101, screw A; 102, first fixing seat; 103, first conveyor wheel; 104, first conveyor rail; 11, first feeder; 111, first feed screw; 112, first feed rack; 113, first feed wheel; 12, second feeder; 121, second feed screw; 122, second feed rack; 123, second feed wheel; 13, second conveyor; 13 1. Second transmission wheel; 132. Second transmission rail; 133. Screw rod B; 134. Second fixed seat; 14. Feeding member; 20. First spring; 30. Second spring; 40. First steel wire; 50. Second steel wire; 60. Feeding device; 610. Rotating disk; 620. Feeding unit; 621. Fixed rod; 622. Spring rod; 623. Elastic claw; 624. Second rotating shaft; 625. First extrusion spring; 626. Second extrusion spring; 627. Limiting ring. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the invention more clearly understood, the invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Example 1

[0032] like Figures 1 to 4 As shown, this embodiment provides a spring mattress production equipment, including a spring forming device 100, the spring forming device 100 includes a frame 1, a first former 2 for forming a first spring 20 and a second former 3 for forming a second spring 30, the first spring 20 and the second spring 30 have the same feeding height and the same discharging direction, the first former 2 includes a first fixing plate 21 fixed to the frame 1 and a first coil spring assembly 22 fixed to the first fixing plate 21, a guide rod 23 is fixed to the middle of the first coil spring assembly 22, the guide rod 23 includes a guide straight rod 231 perpendicular to the first fixing plate 21 and a guide straight rod 231 fixed to the guide straight rod 23 1; the second former 3 comprises a second fixed plate 31 fixed on the frame 1 and a second coil spring assembly 32 fixed on the second fixed plate 31 for forming the second spring 30, the second fixed plate 31 is provided with a through hole 33 for the guide straight rod 231 and the first spring 20 to pass through in the middle of the second coil spring assembly 32, a liftable second cutting knife 4 is provided at the starting coil spring position of the second spring 30, the first fixed plate 21 and the second fixed plate 31 are arranged in parallel and a liftable first cutting knife 5 is provided therebetween, the cutting position of the first cutting knife 5 is adjustable, and the cutting position of the first cutting knife 5 is close to the second fixed plate 31.

[0033] During the production process, the first spring 20 and the second spring 30 are gradually formed, and the first spring 20 is continuously input into the second spring 30 along the guide straight rod 231 to form a double spring structure. During the transportation of the first spring 20, the guide straight rod 231 can offset part of the gravity of the first spring 20. In addition, the first spring 20 itself has a certain forming elastic force, and the starting coiling position of the second spring 30 is controllable. Therefore, under the guidance of the guide straight rod 231, the first spring 20 will not deviate and can smoothly enter the second spring 30 to achieve a double spring structure.

[0034] If the coil diameters of the first spring 20 and the second spring 30 are not much different, then during production, the second cutting knife 4 needs to be pressed downward against the second steel wire 50 to adjust the starting coiling position of the second spring 30 so that the starting coiling position of the second spring 30 is slightly lower than the starting coiling position of the first spring 20 while ensuring that the second cutting knife 4 does not actually cut the second steel wire 50, so that the first spring 20 can be smoothly inserted into the second spring 30.

[0035] To prevent the first spring 20 from slipping out of the second spring 30 during transportation, the diameter of the second spring 30 at the starting end is controlled so that the diameter of the second spring 30 at the starting end is smaller than or slightly larger than the diameter of the first spring 20 at the starting end.

[0036] Specifically, the first coil spring assembly 22 includes two first forming telescopic molds 221, a first pitcher 222 and an arc-shaped shaping block 223. The arc-shaped shaping block 223 is located in the middle and is arranged at the bottom of the guide rod 23. The two first forming telescopic molds 221 and the first pitcher 222 are sequentially arranged at the periphery of the arc-shaped shaping block 223. The second coil spring assembly 32 includes at least two second forming telescopic molds 321 and a second pitcher 322. The second forming telescopic molds 321 and the second pitcher 322 are sequentially arranged at the periphery of the through hole 33. The contact position of at least one second forming telescopic mold 321 with the steel wire is arc-shaped.

[0037] The spring forming device 100 includes a tool adjustment assembly, which includes a driving mechanism 6, a first rotating mechanism 7 and a second rotating mechanism 8. The driving mechanism 6 is fixed on the frame 1, the first rotating mechanism 7 is driven to rotate by the driving mechanism 6, the second rotating mechanism 8 can rotate relative to the first rotating mechanism 7, and the first cutting knife 5 can be lifted and lowered on the second rotating mechanism 8.

[0038] The tool adjustment assembly is used to adjust the cutting position of the first cutting knife 5. The first cutting knife 5 should cut the first steel wire 40 vertically downward to ensure successful cutting. When the first rotating mechanism 7 rotates relative to the frame 1, the first cutting knife 5 on the second rotating mechanism 8 will also rotate accordingly. Therefore, it is necessary to adjust the second rotating mechanism 8 to rotate relative to the first rotating mechanism 7 so as to adjust the vertical cutting direction of the first cutting knife 5 on the second rotating mechanism 8. The position of the first cutting knife 5 is adjustable so as to cut first springs 20 of different sizes.

[0039] refer to Figure 5 and Figure 6 The first rotating mechanism 7 includes a first rotating frame 71 and a first screw 72 installed on the first rotating frame 71, and a sliding plate 73 is installed on the first screw 72; the second rotating mechanism 8 includes a second rotating frame 81, a second fixed frame 82, a lifting assembly 83 and a fastener 84, an arc hole 85 is opened on the second rotating frame 81, a threaded groove is opened on the sliding plate 73, the fastener 84 passes through the arc hole 85 and is screwed into the threaded groove, the second fixed frame 82 is fixed on the second rotating frame 81, the lifting assembly 83 is installed on the second fixed frame 82, and the first cutting knife 5 is fixed at the bottom of the lifting assembly 83.

[0040] By adjusting the fastening position of the fastener 84 in the arc hole 85, the second rotating frame 81 can be rotated relative to the sliding plate 73, and the sliding plate 73 can drive the second rotating frame 81 to move on the first screw rod 72, thereby driving the first cutting knife 5 to move up and down, thereby adjusting the initial position of the first cutting knife 5.

[0041] refer to Figure 5 The driving mechanism 6 includes a mounting frame 61, an elliptical plate 62, a chain 63, a driving source 64, a transmission sprocket 65 and a positioning gear 66. The mounting frame 61 is fixed on the frame 1, the elliptical plate 62 is fixed on the mounting frame 61, and the elliptical edge of the elliptical plate 62 is provided with saw teeth. The driving source 64 is used to drive the transmission sprocket 65, and the transmission sprocket 65 is arranged above the elliptical plate 62. The chain 63 is driven by the transmission sprocket 65 and rotates along the saw teeth on the elliptical plate 62. The transmission sprocket 65 is connected to the transmission On the inner side of the chain 63, a positioning gear 66 is fixed on the mounting frame 61 and is arranged on one side of the transmission sprocket 65, and is transmission-connected to the outer side of the chain 63. A clamping member 74 for fixing on the chain 63 is provided on the first rotating frame 71. The end of the first rotating frame 71 is fixed to the elliptical plate 62 through a first rotating shaft 75. A guide groove 67 is also provided on the elliptical plate 62. A guide block 76 is provided on the first rotating frame 71. When the first rotating frame 71 rotates, the guide block 76 slides along the guide groove 67.

[0042] The driving source 64 drives the transmission sprocket 65 to rotate, and the transmission sprocket 65 drives the chain 63 to rotate on the elliptical plate 62. The positioning gear 66 ensures the stability of the rotation of the chain 63. The chain 63 drives the first rotating frame 71 to rotate, and then the first rotating frame 71 rotates relative to the frame 1, thereby coarsely adjusting the position of the first cutting knife 5. The guide block 76 and the guide groove 67 cooperate with each other to increase the rotation stability of the first rotating frame 71.

[0043] The elliptical plate 62 may be an irregular elliptical shape, for example, it may be a symmetrical arc shape at both ends and a straight line shape at the top and bottom. Figure 5 .

[0044] The spring forming device 100 also includes a straightener 9, a first conveyor 10, a first feeder 11, a second feeder 12, a second conveyor 13 and a feeding piece 14 fixed on the frame 1 in sequence. The straightener 9 includes three rows of straightening wheels 91 arranged in parallel and can allow two steel wires to pass through. The first conveyor 10 and the second conveyor 13 are used to transport the two steel wires respectively. The first feeder 11 and the second feeder 12 are arranged in parallel between the first conveyor 10 and the second conveyor 13 and are used to drive the two steel wires respectively. The rear end of the feeding piece 14 is provided with a first former 2 and a second former 3 arranged in parallel.

[0045] The structures of the first conveyor 10 and the second conveyor 13 are similar. The first conveyor 10 includes a screw rod A101, a first fixed seat 102, and two upper and lower rows of first conveyor wheels 103 arranged on the first fixed seat 102. One end of the screw rod A101 is installed on the frame 1, and the other end is spirally connected to the first fixed seat 102. The first fixed seat 102 is arranged on the frame 1 and can slide on the frame 1. At the same time, a guide rail can be provided at the bottom to ensure the moving direction. The lower row of first conveyor wheels 103 are fixed on the first fixed seat 102, and the upper row of first conveyor wheels 103 can be fixed on the first fixed seat 102 in a lifting manner. The upper row of first conveyor wheels 103 and the lower row of first conveyor wheels 103 are staggered up and down, and each first conveyor wheel 103 is provided with two first conveyor rails 104. The first conveyor rails 104 are used to convey the first conveyor wheels 103. A steel wire 40 or a second steel wire 50; the second conveyor 13 includes a screw rod B133, a second fixed seat 134, and two upper and lower rows of second conveying wheels 131 arranged on the second fixed seat 134, one end of the screw rod B133 is installed on the frame 1, and the other end is spirally connected to the second fixed seat 134, the second fixed seat 134 is arranged on the frame 1, the lower row of second conveying wheels 131 are fixed on the second fixed seat 134, the upper row of second conveying wheels 131 can be raised and lowered and fixed on the second fixed seat 134, the upper row of second conveying wheels 131 and the lower row of second conveying wheels 131 are staggered up and down, each second conveying wheel 131 is provided with two second conveying rails 132, and the second conveying rails 132 are used to convey the first steel wire 40 or the second steel wire 50.

[0046] The first feeder 11 includes a first feeding screw 111, a first feeding frame 112, and two upper and lower rows of first feeding wheels 113 arranged on the first feeding frame 112. One end of the first feeding screw 111 is installed on the frame 1, and the other end is spirally connected to the first feeding frame 112. The first feeding frame 112 is arranged on the frame 1, and the lower row of first feeding wheels 113 are fixed on the first feeding frame 112. The upper row of first feeding wheels 113 can be lifted and fixed on the first feeding frame 112. The upper and lower rows of first feeding wheels 113 are aligned, and each first feeding wheel 113 is provided with a first feeding rail for driving the first steel wire 40 or the second steel wire 50; the second feeder 12 includes a second feeding screw 111 21. A second feeding rack 122 and two upper and lower rows of second feeding wheels 123 arranged on the second feeding rack 122, one end of the second feeding screw 121 is installed on the frame 1, and the other end is spirally connected to the second feeding rack 122, the second feeding rack 122 is arranged on the frame 1, the lower row of second feeding wheels 123 is fixed on the second feeding rack 122, the upper row of second feeding wheels 123 can be lifted and fixed on the second feeding rack 122, the upper and lower rows of second feeding wheels 123 are aligned, and each second feeding wheel 123 is provided with a second feeding rail for driving the first steel wire 40 or the second steel wire 50; the second feeding wheel 123 is arranged on the side of the second feeding rack 122 facing the first feeding wheel 113.

[0047] The distances between the upper and lower wheels in the first conveyor 10, the first feeder 11, the second feeder 12 and the second conveyor 13 are adjusted to accommodate various steel wires of different thicknesses.

[0048] The feeding member 14 is used for transitioning and conveying the first steel wire 40 and the second steel wire 50 .

[0049] In the double spring structure, different feeders are used to convey the first steel wire 40 and the second steel wire 50 respectively, and the conveying speeds of the first steel wire 40 and the second steel wire 50 are controlled respectively, thereby controlling the forming speeds of the first spring 20 and the second spring 30, so that different types of double spring structures can be produced.

[0050] Example 2

[0051] like Figures 1 to 10 As shown, on the basis of Example 1, this embodiment provides a feeding device 60, which includes a rotating disk 610 and a plurality of feeding units 620 evenly arranged along the rotating disk 610, the feeding unit 620 includes a fixed rod 621, a sleeve spring rod 622 and two elastic claws 623, the fixed rod 621 is installed on the rotating disk 610 through a fixing member, the bottom of the sleeve spring rod 622 is provided with a second rotating shaft 624, and the sleeve spring rod 622 is rotatably arranged on the fixed rod 621 through the second rotating shaft 624 At the top, a first extrusion spring 625 is fixed between the bottom of the sleeve spring rod 622 and the inner wall of the fixed rod 621, two elastic claws 623 are symmetrically arranged on the top of the sleeve spring rod 622, and a second extrusion spring 626 is fixed between the two elastic claws 623, one of the elastic claws 623 can rotate relative to the sleeve spring rod 622 and approach the other elastic claw 623 when rotating, the elastic claw 623 can resist the bottom of the arc guide rod 232, and the elastic force of the second extrusion spring 626 is less than the elastic force of the first extrusion spring 625.

[0052] When the feeding unit 620 is subjected to a thrust, the second extrusion spring 626 is more likely to overcome the elastic force than the first extrusion spring 625 , and the second extrusion spring 626 is preferentially extruded and deformed. The rotating disk 610 drives multiple feeding units 620 to rotate together. When a feeding unit 620 gradually approaches the arc guide rod 232 until it hits the bottom of the arc guide rod 232, the arc guide rod 232 squeezes one elastic claw 623 to move closer to the other elastic claw 623, and the distance between the two elastic claws 623 becomes smaller. The first cutting knife 5 cuts off the first spring 20, and the second cutting knife 4 immediately cuts off the second spring 30. At this time, the double spring structure is sleeved on the sleeve spring rod 622 along the arc guide rod 232. The rotating disk 610 rotates continuously, driving the sleeve spring rod 622 to further squeeze the first squeezing spring 625, and the sleeve spring rod 622 rotates relative to the fixed rod 621. When it rotates to a certain angle, the elastic claw 623 gradually breaks away from the impact of the arc guide rod 232, and the positions of the two elastic claws 623 are restored, limiting the double spring structure on the sleeve spring rod 622. Under the limit of the elastic claw 623, the double spring structure will not escape from the sleeve spring rod 622.

[0053] The claw arm of the elastic claw 623 gradually expands outward from bottom to top, and the claw arm has a certain expansion arc. While ensuring that the position of the double spring structure can be limited, the claw arm itself has a certain elasticity. When the rotational thrust reaches a certain level, the claw arm can smoothly escape the resistance of the arc guide rod 232, avoiding problems such as the claw arm breaking.

[0054] A limiting ring 627 is fixed to the top of the fixing rod 621 ; the double spring structure is defined between the elastic claw 623 and the limiting ring 627 .

[0055] The double spring structure is gradually conveyed under the rotation of the feeding device 60, and the spring claws are squeezed by the clamping device, etc. Under the action of gravity, the double spring structure is put into the next process for heat treatment, cooling and bagging.

[0056] The present invention realizes the one-step processing and forming of double springs, avoids manual or mechanical sleeve setting process, reduces production difficulty, and also saves production time. Of course, the present invention can also realize the processing and forming of a single spring, and only needs to operate the first former 2 or the second former 3.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims

1. A spring mattress production equipment, characterized in that: The invention comprises a spring forming device (100), the spring forming device (100) comprising a frame (1), a first former (2) for forming a first spring (20) and a second former (3) for forming a second spring (30), the first spring (20) and the second spring (30) having the same feeding height and the same discharging direction, the first former (2) comprising a first fixing plate (21) fixed to the frame (1) and a first coil spring assembly (22) fixed to the first fixing plate (21), a guide rod (23) being fixed at the middle of the first coil spring assembly (22), the guide rod (23) comprising a guide straight rod (231) perpendicular to the first fixing plate (21) and an arc-shaped guide rod (231) fixed to the end of the guide straight rod (231). The second former (3) comprises a second fixing plate (31) fixed to the frame (1) and a second coil spring assembly (32) fixed to the second fixing plate (31); the second fixing plate (31) is provided with a through hole (33) in the middle of the second coil spring assembly (32) for the guide straight rod (231) and the first spring (20) to pass through; a second cutter (4) which can be lifted and lowered is provided at the starting coil spring position of the second spring (30); the first fixing plate (21) and the second fixing plate (31) are arranged in parallel and a first cutter (5) which can be lifted and lowered is provided between the two; the cutting position of the first cutter (5) is adjustable, and the cutting position of the first cutter (5) is close to the second fixing plate (31); The invention also comprises a feeding device (60), the feeding device (60) comprising a rotating disk (610) and a plurality of feeding units (620) uniformly arranged in an annular shape along the rotating disk (610), the feeding units (620) comprising a fixing rod (621), a sleeve spring rod (622) and two elastic claws (623), the fixing rod (621) being mounted on the rotating disk (610) via a fixing member, the sleeve spring rod (622) having a second rotating shaft (624) at its bottom, the sleeve spring rod (622) being rotatably arranged on the fixing rod (621) via the second rotating shaft (624). A first extrusion spring (625) is fixed between the top of the fixed rod (621), the bottom of the sleeve spring rod (622) and the inner wall of the fixed rod (621); the two elastic claws (623) are symmetrically arranged on the top of the sleeve spring rod (622); a second extrusion spring (626) is fixed between the two elastic claws (623); one of the elastic claws (623) can rotate relative to the sleeve spring rod (622) and approach the other elastic claw (623) when rotating; the elastic claw (623) can contact the bottom of the arc-shaped guide rod (232).

2. The spring mattress production equipment according to claim 1, characterized in that: The spring forming device (100) comprises a tool adjustment assembly, the tool adjustment assembly comprising a driving mechanism (6), a first rotating mechanism (7) and a second rotating mechanism (8), the driving mechanism (6) being fixed on the frame (1), the first rotating mechanism (7) being driven to rotate by the driving mechanism (6), the second rotating mechanism (8) being rotatable relative to the first rotating mechanism (7), and the first cutting knife (5) being liftably arranged on the second rotating mechanism (8).

3. The spring mattress production equipment according to claim 2, characterized in that: The first rotating mechanism (7) comprises a first rotating frame (71) and a first screw rod (72) mounted on the first rotating frame (71), and a sliding plate (73) is mounted on the first screw rod (72); the second rotating mechanism (8) comprises a second rotating frame (81), a second fixed frame (82), a lifting assembly (83) and a fastener (84); an arc-shaped hole (85) is provided on the second rotating frame (81), a thread groove is provided on the sliding plate (73), the fastener (84) passes through the arc-shaped hole (85) and is screwed into the thread groove, the second fixed frame (82) is fixed on the second rotating frame (81), the lifting assembly (83) is mounted on the second fixed frame (82), and the first cutting knife (5) is fixed at the bottom of the lifting assembly (83).

4. The spring mattress production equipment according to claim 3, characterized in that: The driving mechanism (6) comprises a mounting frame (61), an elliptical plate (62), a chain (63), a driving source (64), a transmission sprocket (65) and a positioning gear (66); the mounting frame (61) is fixed to the frame (1); the elliptical plate (62) is fixed to the mounting frame (61); the elliptical edge of the elliptical plate (62) is provided with saw teeth; the driving source (64) is used to drive the transmission sprocket (65); the transmission sprocket (65) is arranged above the elliptical plate (62); the chain (63) is driven by the transmission sprocket (65) and moves along the elliptical plate (66); 2), the positioning gear (66) is fixed on the mounting frame (61) and arranged on one side of the transmission sprocket (65), the first rotating frame (71) is provided with a clamping member (74) for fixing on the chain (63), the end of the first rotating frame (71) is fixed to the elliptical plate (62) through a first rotating shaft (75), the elliptical plate (62) is also provided with a guide groove (67), the first rotating frame (71) is provided with a guide block (76), and when the first rotating frame (71) rotates, the guide block (76) slides along the guide groove (67).

5. The spring mattress production equipment according to claim 1, characterized in that: The spring forming device (100) further comprises a straightener (9), a first conveyor (10), a first feeder (11), a second feeder (12), a second conveyor (13) and a feeding piece (14) which are fixed to the frame (1) in sequence. The straightener (9) comprises three rows of straightening wheels (91) arranged in parallel and through which two steel wires can pass. The first conveyor (10) and the second conveyor (13) are used to transport the two steel wires respectively. The first feeder (11) and the second feeder (12) are arranged in parallel between the first conveyor (10) and the second conveyor (13) and are used to drive the two steel wires respectively. The rear end of the feeding piece (14) is provided with the first former (2) and the second former (3) arranged in parallel.

6. The spring mattress production equipment according to claim 5, characterized in that: The first conveyor (10) comprises a screw rod A (101), a first fixed seat (102), and two upper and lower rows of first conveying wheels (103) arranged on the first fixed seat (102); one end of the screw rod A (101) is mounted on the frame (1), and the other end is spirally connected to the first fixed seat (102); the first fixed seat (102) is arranged on the frame (1); the first conveying wheels (103) in the lower row are fixed on the first fixed seat (102); the first conveying wheels (103) in the upper row are fixed on the first fixed seat (102) in a liftable manner; the first conveying wheels (103) in the upper row and the first conveying wheels (103) in the lower row are arranged alternately up and down; each of the first conveying wheels (103) is provided with two first conveying rails (104); the first conveying rails (104) are used to convey the first steel wire (40) or the second steel wire (50); The second conveyor (13) comprises a screw rod B (133), a second fixed seat (134), and two upper and lower rows of second conveying wheels (131) arranged on the second fixed seat (134); one end of the screw rod B (133) is mounted on the frame (1), and the other end is spirally connected to the second fixed seat (134); the second fixed seat (134) is arranged on the frame (1); the second conveying wheels (131) in the lower row are fixed on the second fixed seat (134); the second conveying wheels (131) in the upper row are fixed on the second fixed seat (134) in a movably movable manner; the second conveying wheels (131) in the upper row and the second conveying wheels (131) in the lower row are arranged alternately up and down; each of the second conveying wheels (131) is provided with two second conveying rails (132); the second conveying rails (132) are used to convey the first steel wire (40) or the second steel wire (50).

7. The spring mattress production equipment according to claim 5, characterized in that: The first feeder (11) comprises a first feeding screw (111), a first feeding frame (112), and two upper and lower rows of first feeding wheels (113) arranged on the first feeding frame (112); one end of the first feeding screw (111) is mounted on the frame (1), and the other end is spirally connected to the first feeding frame (112); the first feeding frame (112) is arranged on the frame (1); the first feeding wheels (113) in the lower row are fixed on the first feeding frame (112); the first feeding wheels (113) in the upper row are fixed on the first feeding frame (112) in a movably movable manner; the upper and lower rows of the first feeding wheels (113) are aligned; each of the first feeding wheels (113) is provided with a first feeding rail for driving the first steel wire (40) or the second steel wire (50); the second feeder (12) comprises a second feeding screw (12 1), a second feeding rack (122) and two upper and lower rows of second feeding wheels (123) arranged on the second feeding rack (122), one end of the second feeding screw (121) is mounted on the frame (1), and the other end is spirally connected to the second feeding rack (122), the second feeding rack (122) is arranged on the frame (1), the second feeding wheels (123) in the lower row are fixed on the second feeding rack (122), and the second feeding wheels (123) in the upper row are fixed on the second feeding rack (122) in a liftable manner, the upper and lower rows of the second feeding wheels (123) are aligned, and each of the second feeding wheels (123) is provided with a second feeding rail for driving the first steel wire (40) or the second steel wire (50); the second feeding wheel (123) is arranged on a side of the second feeding rack (122) facing the first feeding wheel (113).

8. The spring mattress production equipment according to claim 1, characterized in that: The elastic force of the second pressing spring (626) is smaller than the elastic force of the first pressing spring (625).

9. The spring mattress production equipment according to claim 1, characterized in that: A limiting ring (627) is fixed to the top of the fixing rod (621); and a double spring structure is defined between the elastic claw (623) and the limiting ring (627).

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