CN104162613A - Feeding device for spring machine - Google Patents
Feeding device for spring machine Download PDFInfo
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- CN104162613A CN104162613A CN201410354429.0A CN201410354429A CN104162613A CN 104162613 A CN104162613 A CN 104162613A CN 201410354429 A CN201410354429 A CN 201410354429A CN 104162613 A CN104162613 A CN 104162613A
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- gear
- turning cylinder
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- roller
- pillar
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Abstract
The invention discloses a feeding device for a spring machine. The device comprises a first base body, an adjustment guiding frame, a material cylinder, a guiding frame, a transmission mechanism and multiple turning wheels, wherein the turning wheels are arranged on the first base body, the material cylinder is installed on the turning wheels, the transmission mechanism is arranged in the first base body and is connected with the material cylinder, and the adjustment guiding frame and the guiding frame are arranged on the first base body. The device has the advantages that cost can be reduced, sensitivity can be improved, the structure is simple, maintenance is convenient, accidents are avoided, time is saved, invested cost of equipment is reduced, occupied on-site space is narrowed, inertia force can be buffered, the load generated during instant starting of a motor is reduced, and the service life of parts of a transmission system is prolonged.
Description
[technical field]
The present invention relates to the technical field of the pay-off of the technical field of coiling machine, particularly a kind of coiling machine.
[background technology]
Coiling machine, in making the process of spring, must have a device continuously to coiling machine steel conveying, requires feeding speed and materials speed to be consistent, and requires the steel wire tension in course of conveying all to keep at any time constant and suitable.But materials length and the time of a spring of every making are not linear functional relations, but a discontinuous curve, so feeding motor speed just needs frequent variations and start-stop.So need to detect steel wire tension, provide the various signals of telecommunication, thereby control motor movement normality, the most approximately meet feeding speed and materials speed is consistent.Of the prior art, detect the conventional slide rail dolly of steel wire tension and promote to control travel switch, complex structure, sliding-frictional resistance is large, has reduced sensitivity, also easily wearing and tearing, service life is short, increases cost.
Pay-off is by bearing, barrel, motor, the parts such as transmission mechanism form, because motor and transmission mechanism are arranged in bearing, bearing top is provided with again barrel, the bottom of barrel is that steel plate and many gussets are welded together to form, the bottom of barrel is connected with transmission mechanism, thereby barrel is by bearing top shutoff, when motor or transmission mechanism break down need to keep in repair time, need hanging device that whole pay-off is sling, maintenance personal stands in the below of pay-off and keeps in repair, thereby maintenance is inconvenient, easily there is security incident, barrel due to barrel is integral design with the cylinder end again, in the time of in front of pay-off transported to steel wire coil by fork truck, can not directly steel wire coil be placed in barrel, also need hanging device that steel wire coil is hung in barrel, thereby lose time, increased equipment investment cost, increased on-the-spot space hold.
The barrel transmission of part pay-off is to be provided with driven gear by the end at barrel, motor connects reduction box, the output shaft of reduction box is provided with driving gear, driving gear and driven gear engaged transmission complete transmission, because the weight of spring coil of strip is large, motor is large at startup momentary load, the inertia producing in rotation is large, again because coiling machine is in making the process of spring, during pay-off can be shut down frequently or starts according to the situation of coiling machine materials, the parts damage that inertia force causes transmission system frequent impact is also more severe than normal wear, thereby easily there is feeding burn-down of electric motor, the phenomenon of damaging, reduced the service life of the parts of transmission system.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, proposes a kind of pay-off of coiling machine, not only can reduce costs, improve sensitivity, and simple in structure, also can be easy to maintenance, avoid occurring security incident, save time, reduce equipment investment cost, reduce taking of site space, can also cushion inertia force, reduce the load of motor moment startup, extend the service life of the parts of transmission system.
For achieving the above object, the present invention proposes a kind of pay-off of coiling machine, comprise the first pedestal, adjust leading truck, barrel, leading truck, transmission mechanism and some runners, on described the first pedestal, be shelved with runner, on described runner, barrel is installed, in described the first pedestal, be provided with transmission mechanism, described transmission mechanism is connected with barrel, described the first pedestal is provided with adjusts leading truck and leading truck, described adjustment leading truck comprises base, pillar, air spring, pole, roller, the first gauge tap, the second gauge tap, spring and guide bracket, the front portion of described base is provided with pillar, described pillar is provided with pole, spring and guide bracket, the top of described pole is provided with guide bracket, the below of described pole is provided with spring, the other end of described spring is connected with pole, described pole is provided with roller, described roller is shelved on base, the rear portion of described base is provided with air spring, the piston rod of described air spring is connected with pillar, described base is provided with the first gauge tap and the second gauge tap, the place ahead of described roller is provided with the first gauge tap, the rear of described roller is provided with the second gauge tap, described barrel comprises cylindrical shell and support body, in the inner bottom surface of described cylindrical shell, be shelved with support body, described cylindrical shell comprises axle sleeve, some gussets and barrel, described axle sleeve is provided with gusset, on described gusset, barrel is installed, the installing rack of described runner is fixedly connected with gusset, described support body comprises base plate, bearing and wear spool, the bottom of described base plate is provided with bearing, described base plate is provided with wears spool, described transmission mechanism comprises motor, decelerator, shaft coupling, power transmission shaft, the first gear, the first turning cylinder, the second gear, the second turning cylinder, the second pedestal, the 3rd gear, the 4th gear and the 3rd turning cylinder, described motor is connected with decelerator, the output shaft of described decelerator is connected with power transmission shaft, described the second pedestal bottom is provided with power transmission shaft, the front and rear of described power transmission shaft is equipped with the first gear, the front and rear of described the second pedestal is equipped with the first turning cylinder and the second turning cylinder, the top of described the first turning cylinder is provided with the second turning cylinder, the 3rd gear and the first gear on the lower end of described the first turning cylinder are intermeshing, the upper end of described the first turning cylinder is connected with the lower end of the second turning cylinder by shaft coupling, the bottom of described barrel is connected with the 3rd turning cylinder, the bottom of described the 3rd turning cylinder is provided with the second gear, the 4th gear and the second gear on the top of described the second turning cylinder are intermeshing.
As preferably, described guide bracket comprises body, bearing, the first runner, the second runner and fastening nut, the upper and lower of described body is equipped with bearing, the first runner is installed on described bearing, the side of described bearing is provided with the second runner, described body is provided with fastening nut, and described body is nested on pillar and by fastening nut and is fixedly mounted on pillar.
As preferably, also comprise touching bar, described pole is provided with touching bar, and described touching bar is corresponding with the wheel shaft on pole, and described wheel shaft is provided with roller, and described roller is ball bearing.
As preferably, described axle sleeve is provided with six gussets, described six gussets are evenly distributed on axle sleeve, described gusset and axle sleeve are welded together, on described every three gussets, a barrel is installed, described barrel comprises three main pillars and at least two connecting rods, top and the centre of described main pillar are equipped with connecting rod, described connecting rod is semicircular in shape, described main pillar is the pipe of two ends shutoff, described gusset is provided with the groove matching with main pillar, and described main pillar inserts groove.
As preferably, described base plate is round-shaped, and the bottom of described base plate is provided with at least two bearings, and described bearing adopts the hollow pipe that cross-sectional area is rectangular shape.
As preferably, described in wear spool bottom be provided with screw rod, the centre of described base plate is provided with the nut coordinating with screw rod.
As preferably, described the first gear and the 3rd gear all adopt bevel gear, and described the first gear is that flat key is connected with power transmission shaft.
As preferably, described shaft coupling is safety coupling.
As preferably, described the first pedestal is provided with two leading trucks, and described leading truck consists of the H type roller that on bracing frame and bracing frame, two be arranged in parallel.
As preferably, described the second gear and the 4th gear all adopt roller gear, and the gearratio of described the second gear and the 4th gear is 25:50.
Beneficial effect of the present invention: the present invention is by being provided with pole by pillar, pole is provided with roller, by roller, replace traditional slideway, cylindrical shell and support body be design separately, when needs carry out maintenance to motor or transmission mechanism, support body is shifted out and can be keeped in repair in cylindrical shell, steel wire coil is placed on support body, facilitate fork truck to transport, when needs material loading, gusset is provided with the groove matching with main pillar, main pillar inserts groove, make the barrel can be for convenience detach from gusset, fork truck can directly be shelved on the support body that is placed with steel wire coil in cylindrical shell, bearing prevents that in transportation, support body turns over, the front and rear of power transmission shaft is equipped with the first gear, the front and rear of the first pedestal is equipped with the first turning cylinder and the second turning cylinder, replace traditional single-drive, and the power that traditional parts bear adopts two identical parts to bear now, thereby transmission is effective, reduce the holding capacity of parts, elongated component service life, the upper end of the first turning cylinder 56 is connected with the lower end of the second turning cylinder by shaft coupling, compared with prior art, not only can reduce costs, improve sensitivity, and simple in structure, also can be easy to maintenance, avoid occurring security incident, save time, reduce equipment investment cost, reduce taking of site space, can also cushion inertia force, reduce the load of motor moment startup, extend the service life of the parts of transmission system.
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the pay-off of a kind of coiling machine of the present invention;
Fig. 2 is the structural representation of guide bracket;
Fig. 3 is the structural representation of adjusting leading truck;
Fig. 4 is the structural representation of barrel;
Fig. 5 is the structural representation of support body;
Fig. 6 is the structural representation of barrel;
Fig. 7 is the structural representation of transmission mechanism.
In figure: 1-the first pedestal, 2-adjusts leading truck, 3-barrel, 4-leading truck, 5-transmission mechanism, 6-runner, 21-base, 22-pillar, 23-air spring, 24-pole, 25-roller, 26-the first gauge tap, 27-the second gauge tap, 28-spring, 29-guide bracket, 210-touches bar, 291-body, 292-bearing, 293-the first runner, 294-the second runner, 295-fastening nut, 31-cylindrical shell, 32-support body, 311-axle sleeve, 312-gusset, 313-barrel, 321-base plate, 322-bearing, 323-wears spool, the main pillar of 3131-, 3132-connecting rod, 51-motor, 52-decelerator, 53-shaft coupling, 54-power transmission shaft, 55-the first gear, 56-the first turning cylinder, 57-the second gear, 58-the second turning cylinder, 59-the second pedestal, 510-the 3rd gear, 511-the 4th gear, 512-the 3rd turning cylinder.
[specific embodiment]
Consult Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the pay-off of a kind of coiling machine of the present invention, comprise the first pedestal 1, adjust leading truck 2, barrel 3, leading truck 4, transmission mechanism 5 and some runners 6, on described the first pedestal 1, be shelved with runner 6, on described runner 6, barrel 3 is installed, in described the first pedestal 1, be provided with transmission mechanism 5, described transmission mechanism 5 is connected with barrel 3, described the first pedestal 1 is provided with adjusts leading truck 2 and leading truck 4, described adjustment leading truck 2 comprises base 21, pillar 22, air spring 23, pole 24, roller 25, the first gauge tap 26, the second gauge tap 27, spring 28 and guide bracket 29, the front portion of described base 21 is provided with pillar 22, described pillar 22 is provided with pole 24, spring 28 and guide bracket 29, the top of described pole 24 is provided with guide bracket 29, the below of described pole 24 is provided with spring 28, the other end of described spring 28 is connected with pole 24, described pole 24 is provided with roller 25, described roller 25 is shelved on base 21, the rear portion of described base 21 is provided with air spring 23, the piston rod of described air spring 23 is connected with pillar 22, described base 21 is provided with the first gauge tap 26 and the second gauge tap 27, the place ahead of described roller 25 is provided with the first gauge tap 26, the rear of described roller 25 is provided with the second gauge tap 27, described barrel 3 comprises cylindrical shell 31 and support body 32, in the inner bottom surface of described cylindrical shell 31, be shelved with support body 32, described cylindrical shell 31 comprises axle sleeve 311, some gussets 312 and barrel 313, described axle sleeve 311 is provided with gusset 312, on described gusset 312, barrel 313 is installed, the installing rack of described runner 6 is fixedly connected with gusset 312, described support body 32 comprises base plate 321, bearing 322 and wear spool 323, the bottom of described base plate 321 is provided with bearing 322, described base plate 321 is provided with wears spool 323, described transmission mechanism 5 comprises motor 51, decelerator 52, shaft coupling 53, power transmission shaft 54, the first gear 55, the first turning cylinder 56, the second gear 57, the second turning cylinder 58, the second pedestal 59, the 3rd gear 510, the 4th gear 511 and the 3rd turning cylinder 512, described motor 51 is connected with decelerator 52, the output shaft of described decelerator 52 is connected with power transmission shaft 54, described the second pedestal 59 bottoms are provided with power transmission shaft 54, the front and rear of described power transmission shaft 54 is equipped with the first gear 55, the front and rear of described the second pedestal 59 is equipped with the first turning cylinder 56 and the second turning cylinder 58, the top of described the first turning cylinder 56 is provided with the second turning cylinder 58, the 3rd gear 510 and the first gear 55 on the lower end of described the first turning cylinder 56 are intermeshing, the upper end of described the first turning cylinder 56 is connected with the lower end of the second turning cylinder 58 by shaft coupling 53, the bottom of described barrel 3 is connected with the 3rd turning cylinder 512, the bottom of described the 3rd turning cylinder 512 is provided with the second gear 57, the 4th gear 511 and the second gear 57 on the top of described the second turning cylinder 58 are intermeshing, described guide bracket 29 comprises body 291, bearing 292, the first runner 293, the second runner 294 and fastening nut 295, the upper and lower of described body 291 is equipped with bearing 292, the first runner 293 is installed on described bearing 292, the side of described bearing 292 is provided with the second runner 294, described body 291 is provided with fastening nut 295, described body 291 is nested on pillar 22 and by fastening nut 295 and is fixedly mounted on pillar 22, also comprise touching bar 210, described pole 24 is provided with touching bar 210, described touching bar 210 is corresponding with the wheel shaft on pole 24, described wheel shaft is provided with roller 25, described roller 25 is ball bearing, described axle sleeve 311 is provided with six gussets 312, described six gussets 312 are evenly distributed on axle sleeve 311, described gusset 312 is welded together with axle sleeve 311, on described every three gussets 312, a barrel 313 is installed, described barrel 313 comprises three main pillars 3131 and at least two connecting rods 3132, the top of described main pillar 3131 and centre are equipped with connecting rod 3132, described connecting rod 3132 is semicircular in shape, described main pillar 3131 is the pipe of two ends shutoff, described gusset 312 is provided with the groove matching with main pillar 3131, described main pillar 3131 inserts groove, described base plate 321 is round-shaped, the bottom of described base plate 321 is provided with at least two bearings 322, described bearing 322 adopts the hollow pipe that cross-sectional area is rectangular shape, described bottom of wearing spool 323 is provided with screw rod, the centre of described base plate 321 is provided with the nut coordinating with screw rod, described the first gear 55 and the 3rd gear 510 all adopt bevel gear, described the first gear 55 and power transmission shaft 54 are connected for flat key, described shaft coupling 53 is safety coupling 53, described the first pedestal 1 is provided with two leading trucks 4, described leading truck 4 consists of the H type roller that on bracing frame and bracing frame, two be arranged in parallel, described the second gear 57 and the 4th gear 511 all adopt roller gear, the gearratio of described the second gear 57 and the 4th gear 511 is 25:50.
The course of work of the present invention:
The pay-off of a kind of coiling machine of the present invention in the course of the work, steel wire coil is placed on support body 32, by forklift transport near unwinding device, from gusset 312, remove barrel 313, fork truck is placed on the support body 32 that is placed with steel wire coil on gusset 312, barrel 313 is being plugged on gusset 312 again, one end of steel wire is pulled out through the guide bracket of leading truck 4 and the guide bracket of adjustment leading truck 2, enter coiling machine, pillar 22 is provided with pole 24, pole 24 is provided with roller 25, by roller 25, replace traditional slideway, cylindrical shell 31 and separately design of support body 32, when needs carry out maintenance to motor or transmission mechanism, support body 32 is shifted out and can be keeped in repair in cylindrical shell 31, steel wire coil is placed on support body 32, facilitate fork truck to transport, when needs material loading, gusset 312 is provided with the groove matching with main pillar 3131, main pillar 3131 inserts groove, make the barrel 313 can be for convenience detach from gusset 312, fork truck can directly be shelved on the support body 32 that is placed with steel wire coil in cylindrical shell 31, bearing 322 prevents that in transportation, support body 32 turns over, the front and rear of power transmission shaft 54 is equipped with the first gear 55, the front and rear of the first pedestal 59 is equipped with the first turning cylinder 56 and the second turning cylinder 58, replace traditional single-drive, and the power that traditional parts bear adopts two identical parts to bear now, thereby transmission is effective, reduce the holding capacity of parts, elongated component service life, the upper end of the first turning cylinder 56 is connected with the lower end of the second turning cylinder 58 by shaft coupling 53, compared with prior art, not only can reduce costs, improve sensitivity, and simple in structure, also can be easy to maintenance, avoid occurring security incident, save time, reduce equipment investment cost, reduce taking of site space, can also cushion inertia force, reduce the load of motor moment startup, extend the service life of the parts of transmission system.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (10)
1. the pay-off of a coiling machine, it is characterized in that: comprise the first pedestal (1), adjust leading truck (2), barrel (3), leading truck (4), transmission mechanism (5) and some runners (6), on described the first pedestal (1), be shelved with runner (6), barrel (3) is installed on described runner (6), in described the first pedestal (1), be provided with transmission mechanism (5), described transmission mechanism (5) is connected with barrel (3), described the first pedestal (1) is provided with adjusts leading truck (2) and leading truck (4), described adjustment leading truck (2) comprises base (21), pillar (22), air spring (23), pole (24), roller (25), the first gauge tap (26), the second gauge tap (27), spring (28) and guide bracket (29), the front portion of described base (21) is provided with pillar (22), described pillar (22) is provided with pole (24), spring (28) and guide bracket (29), the top of described pole (24) is provided with guide bracket (29), the below of described pole (24) is provided with spring (28), the other end of described spring (28) is connected with pole (24), described pole (24) is provided with roller (25), described roller (25) is shelved on base (21), the rear portion of described base (21) is provided with air spring (23), the piston rod of described air spring (23) is connected with pillar (22), described base (21) is provided with the first gauge tap (26) and the second gauge tap (27), the place ahead of described roller (25) is provided with the first gauge tap (26), the rear of described roller (25) is provided with the second gauge tap (27), described barrel (3) comprises cylindrical shell (31) and support body (32), in the inner bottom surface of described cylindrical shell (31), be shelved with support body (32), described cylindrical shell (31) comprises axle sleeve (311), some gussets (312) and barrel (313), described axle sleeve (311) is provided with gusset (312), barrel (313) is installed on described gusset (312), the installing rack of described runner (6) is fixedly connected with gusset (312), described support body (32) comprises base plate (321), bearing (322) and wear spool (323), the bottom of described base plate (321) is provided with bearing (322), described base plate (321) is provided with wears spool (323), described transmission mechanism (5) comprises motor (51), decelerator (52), shaft coupling (53), power transmission shaft (54), the first gear (55), the first turning cylinder (56), the second gear (57), the second turning cylinder (58), the second pedestal (59), the 3rd gear (510), the 4th gear (511) and the 3rd turning cylinder (512), described motor (51) is connected with decelerator (52), the output shaft of described decelerator (52) is connected with power transmission shaft (54), described the second pedestal (59) bottom is provided with power transmission shaft (54), the front and rear of described power transmission shaft (54) is equipped with the first gear (55), the front and rear of described the second pedestal (59) is equipped with the first turning cylinder (56) and the second turning cylinder (58), the top of described the first turning cylinder (56) is provided with the second turning cylinder (58), the 3rd gear (510) on the lower end of described the first turning cylinder (56) is intermeshing with the first gear (55), the upper end of described the first turning cylinder (56) is connected with the lower end of the second turning cylinder (58) by shaft coupling (53), the bottom of described barrel (3) is connected with the 3rd turning cylinder (512), the bottom of described the 3rd turning cylinder (512) is provided with the second gear (57), the 4th gear (511) on the top of described the second turning cylinder (58) is intermeshing with the second gear (57).
2. the pay-off of a kind of coiling machine as claimed in claim 1, it is characterized in that: described guide bracket (29) comprises body (291), bearing (292), the first runner (293), the second runner (294) and fastening nut (295), the upper and lower of described body (291) is equipped with bearing (292), the first runner (293) is installed on described bearing (292), the side of described bearing (292) is provided with the second runner (294), described body (291) is provided with fastening nut (295), described body (291) is nested in pillar (22) and goes up and pass through fastening nut (295) and be fixedly mounted on pillar (22).
3. the pay-off of a kind of coiling machine as claimed in claim 1, it is characterized in that: also comprise touching bar (210), described pole (24) is provided with touching bar (210), described touching bar (210) is corresponding with the wheel shaft on pole (24), described wheel shaft is provided with roller (25), and described roller (25) is ball bearing.
4. the pay-off of a kind of coiling machine as claimed in claim 1, it is characterized in that: described axle sleeve (311) is provided with six gussets (312), described six gussets (312) are evenly distributed on axle sleeve (311), described gusset (312) is welded together with axle sleeve (311), a barrel (313) is installed on described every three gussets (312), described barrel (313) comprises three main pillars (3131) and at least two connecting rods (3132), the top of described main pillar (3131) and centre are equipped with connecting rod (3132), described connecting rod (3132) is semicircular in shape, described main pillar (3131) is the pipe of two ends shutoff, described gusset (312) is provided with the groove matching with main pillar (3131), described main pillar (3131) inserts groove.
5. the pay-off of a kind of coiling machine as claimed in claim 1, it is characterized in that: described base plate (321) is for round-shaped, the bottom of described base plate (321) is provided with at least two bearings (322), and described bearing (322) adopts the hollow pipe that cross-sectional area is rectangular shape.
6. the pay-off of a kind of coiling machine as claimed in claim 1, is characterized in that: described in wear spool (323) bottom be provided with screw rod, the centre of described base plate (321) is provided with the nut coordinating with screw rod.
7. the pay-off of a kind of coiling machine as claimed in claim 1, is characterized in that: described the first gear (55) and the 3rd gear (510) all adopt bevel gear, and described the first gear (55) and power transmission shaft (54) are connected for flat key.
8. the pay-off of a kind of coiling machine as claimed in claim 1, is characterized in that: described shaft coupling (53) is safety coupling (53).
9. the pay-off of a kind of coiling machine as claimed in claim 1, it is characterized in that: described the first pedestal (1) is provided with two leading trucks (4), described leading truck (4) consists of the H type roller that on bracing frame and bracing frame, two be arranged in parallel.
10. as claimed in any one of claims 1-9 wherein, it is characterized in that: described the second gear (57) and the 4th gear (511) all adopt roller gear, described the second gear (57) is 25:50 with the gearratio of the 4th gear (511).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354429.0A CN104162613B (en) | 2014-07-23 | 2014-07-23 | A kind of pay-off of coiling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354429.0A CN104162613B (en) | 2014-07-23 | 2014-07-23 | A kind of pay-off of coiling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104162613A true CN104162613A (en) | 2014-11-26 |
| CN104162613B CN104162613B (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410354429.0A Expired - Fee Related CN104162613B (en) | 2014-07-23 | 2014-07-23 | A kind of pay-off of coiling machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN104162613B (en) |
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| CN104801638A (en) * | 2015-04-13 | 2015-07-29 | 张家港江苏科技大学产业技术研究院 | Unwinding mechanism |
| CN105371800A (en) * | 2015-11-26 | 2016-03-02 | 重庆开明弹簧有限公司 | Spiral spring feeding device with metering function |
| CN114589277A (en) * | 2022-04-29 | 2022-06-07 | 广东铨力睡眠科技有限公司 | Spiral wire spring processingequipment for mattress |
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| CN114589277B (en) * | 2022-04-29 | 2024-03-29 | 广东铨力睡眠科技有限公司 | Spiral steel wire spring processingequipment for mattress |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104162613B (en) | 2016-02-24 |
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