CN109573936B - Packaging device and method for bagged springs - Google Patents
Packaging device and method for bagged springs Download PDFInfo
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- CN109573936B CN109573936B CN201811619187.8A CN201811619187A CN109573936B CN 109573936 B CN109573936 B CN 109573936B CN 201811619187 A CN201811619187 A CN 201811619187A CN 109573936 B CN109573936 B CN 109573936B
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- cloth
- welding
- springs
- spring
- packaging
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/063—Spring inlays wrapped or otherwise protected
- A47C27/064—Pocketed springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G9/00—Placing upholstery springs in pockets; Fitting springs in upholstery
Abstract
The invention discloses a packaging device and a packaging method for a bagged spring, wherein the packaging device comprises a cloth feeding mechanism, a cloth conveying mechanism and a packaging mechanism, wherein the cloth feeding mechanism is used for conveying cloth along a preset path; the spring compression conveying mechanism compresses the springs and conveys the compressed springs into the cloth; the welding and packaging mechanism is used for welding the cloth to form forming welding seams to separate and independently package the springs in the cloth, at least one section of each forming welding seam is a slant line or an arc line, and the adjacent forming welding seams are symmetrically distributed and exist in at least partial gap areas; the cloth pulling mechanism pulls out the welded and packaged bagged springs, the forming welding line forms a cavity for accommodating a single spring, the front and rear adjacent springs are separately wrapped in the front and rear cavities, the forming welding line is symmetrically distributed, and the forming welding line of the oblique line or the arc line part forms a larger gap area, so that the using amount of the springs can be saved, the packaged spring string formed after packaging is pulled out, and finally the special-shaped bagged spring string is formed.
Description
Technical Field
The invention relates to the technical field of bagged spring equipment, in particular to a bagged spring packaging device and a method.
Background
The bagged springs are formed by continuously and parallelly wrapping and packaging single springs in a cloth bag, the bagged springs are sequentially connected to form a bagged spring string, and the bagged spring string is arranged and bonded to form a bagged spring bed core. The adjacent spring individuals in the current traditional bagged spring string are packaged in the cloth in a vertical state in a continuous and parallel mode in a wrapping mode, although the bagged spring in the structural form has good supporting performance and comfort, the spring quantity is more, and the production cost is higher.
In order to solve the above problems, patents CN107467966A and CN107518674A disclose arc-shaped bagged spring strings and inclined bagged spring strings, respectively, in the special-shaped bagged spring string with such a structural form, because a gap space exists between adjacent spring units, compared with the conventional bagged spring string, under the condition of the same specification and size, the number of springs used can be effectively reduced, and the cost can be reduced.
However, how to produce the special-shaped bagged spring quickly, efficiently and stably is a technical problem to be solved urgently in the industry.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art and provides a bagged spring packaging device and a method for efficiently and stably packaging a special-shaped bagged spring.
According to a first aspect of the present invention, there is provided a pocket spring packing device comprising a cloth feeding mechanism for feeding a cloth along a predetermined path; the spring compression conveying mechanism compresses the springs and conveys the compressed springs into the cloth; the welding and packaging mechanism is used for welding the cloth to form forming welding seams to separate and independently package the springs in the cloth, at least one section of each forming welding seam is a slant line or an arc line, and the adjacent forming welding seams are symmetrically distributed and exist in at least partial gap areas; and the cloth pulling mechanism is used for pulling out the bagged spring which is welded and packaged.
In some of these embodiments, the welding and packaging mechanism includes an ultrasonic die assembly and a welding knife assembly arranged oppositely, the ultrasonic die assembly and the welding knife assembly act to form two symmetrically distributed forming welding seams on the cloth, and at least one section of the welding seam is overlapped or abutted between adjacent forming welding seams, so that the spring is packaged in the cloth in an inclined or arc state.
In some of these embodiments, the ultrasonic die assembly comprises an ultrasonic welding plane and the welding blade assembly has a welding blade that forms a shaped weld.
In some of these embodiments, the ultrasonic welding device further comprises a first pressure plate arranged between the ultrasonic die assembly and the welding knife assembly, and the first pressure plate is provided with a gap for the welding knife assembly to penetrate through for welding the cloth.
In some embodiments, the ultrasonic probe further comprises a second pressing plate arranged on one side of the ultrasonic die assembly, and the first pressing plate and the second pressing plate form a gap for the cloth and the spring in the cloth to pass through.
In some embodiments, the cloth spreading mechanism includes two cloth spreading rollers disposed opposite to each other, the cloth spreading rollers press the two side edges of the cloth to make the cloth spreading rollers rotate to pull out the pocket springs, and a gap is formed in the middle of the cloth spreading rollers for the cloth and the springs in the cloth to pass through.
In some embodiments, the device further comprises an overturning frame for bearing the cloth feeding mechanism, the welding and packaging mechanism and the cloth pulling mechanism, and an adjustable deflection angle is formed between the overturning frame and the spring compression conveying mechanism.
In some embodiments, the cloth feeding mechanism comprises two cloth folding baffles for folding and conveying the cloth, the spring compression conveying mechanism comprises two conveying baffles with ends extending into the space between the two cloth folding baffles and conveying belts respectively wound outside the conveying baffles, and a deflection angle is formed between the cloth folding baffles and the conveying baffles.
According to a second aspect of the present invention, there is provided a method of packaging a pocketed spring, comprising the steps of: providing a fabric continuously conveyed along a predetermined path; compressing the spring and conveying the spring into the cloth; welding the cloth to form a formed welding seam so as to separate and independently encapsulate the springs in the cloth; wherein at least one section of the formed welding seam is a sloping line or an arc line, and the adjacent formed welding seams are symmetrically distributed and exist in at least partial gap areas; and pulling out the welded and packaged bagged spring.
In some of these embodiments, the symmetrically distributed shaped welds form symmetrically distributed cavities in the cloth that receive the springs, at least one section of the cavity being an arc or an inclined section to enclose the springs in an inclined or arc-like condition within the cloth.
In some embodiments, in the formed welding seams formed by welding the cloth materials, at least one section of the adjacent formed welding seams are overlapped or abutted, so that at least one part of the two adjacent springs is abutted with each other, and the rest parts are relatively far away from each other to form a gap area.
In some embodiments, the ultrasonic die assembly and the welding knife assembly cooperate to form two symmetrically distributed forming welding seams, and the spring is symmetrically encapsulated in the cavity in an inclined or arc state after being expanded.
In some of these embodiments, the spring is delivered into the cloth in a biased compressed state.
Has the advantages that: according to the bagged spring packaging device and the method, the forming welding line is formed on the cloth in a welding mode through the welding packaging mechanism, the forming welding line forms a cavity for containing a single spring, the front spring and the rear spring which are adjacent are packaged in the front cavity and the rear cavity in a separated mode, the forming welding line is symmetrically distributed, the forming welding line of the oblique line or the arc line portion forms a large gap area, the using amount of the springs can be saved, the bagged spring string formed after packaging is pulled out, the special-shaped bagged spring string is finally formed, production operation is simple and rapid, and efficiency is high.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another view according to an embodiment of the present invention;
FIG. 3 is a schematic view of a partial structure of an arc-shaped pocketed spring package according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a welding and packaging mechanism in packaging an arc-shaped pocket spring according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a welding and packaging mechanism for packaging arc-shaped pocket springs according to an embodiment of the present invention, the welding and packaging mechanism having a first pressing plate and a second pressing plate;
FIG. 6 is a schematic view of a configuration of a welding blade assembly and a first pressing plate in an encapsulated arc-shaped pocket spring according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of another view of a welding and packaging mechanism with a first pressing plate and a second pressing plate for packaging arc-shaped pocket springs according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a cloth spreading roller according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of another embodiment of a cloth spreading roller in an embodiment of the present invention;
FIG. 10 is a schematic view of a partial structure of an embodiment of the present invention illustrating the packaging of a tilt pocket spring;
FIG. 11 is a schematic view of the configuration of the cooperation of the welding blade assembly and the first pressing plate for packaging the tilt pocket spring according to the embodiment of the present invention;
FIG. 12 is a schematic view of the pocketed spring packaging method of the present invention for packaging arc-shaped pocketed springs:
FIG. 13 is a schematic view of a method for packaging pocketed springs according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 11, the pocketed spring packaging device according to the embodiment of the present invention is used for packaging and forming irregularly-shaped pocketed springs such as arc-shaped pocketed springs and inclined pocketed springs, and includes a cloth feeding mechanism 10, a spring compression conveying mechanism 20, a welding and packaging mechanism 30, and a cloth pulling mechanism 40.
The cloth is folded in a U shape by the cloth feeding mechanism 10 to form upper and lower layers for continuous conveying, springs in a compressed state are sequentially conveyed between the upper and lower layers of cloth one by the spring compression conveying mechanism 20, the cloth and the springs in the cloth move forwards and are conveyed, after the springs move to a preset position, the welding and packaging mechanism 30 acts to weld the cloth to form a forming welding line 1, the forming welding line 1 separates the springs to independently wrap and package the springs, and the cloth pulling mechanism 40 pulls out bagged spring strings formed by packaging.
It should be noted that the forming weld 1 is a weld wrapping and encapsulating a single spring, and is generally composed of two front and rear welds.
Referring to fig. 4 to 7, the welding and packaging mechanism 30 includes an ultrasonic die head assembly 31, a welding cutter assembly 32, an edge ultrasonic die head assembly 33, and an edge welding cutter assembly 34, which are arranged opposite to each other, the edge ultrasonic die head assembly 33 and the edge welding cutter assembly 34 cooperate to perform welding and packaging on the fabric edge opening folded in a U shape to form a continuous edge weld, and the edge ultrasonic die head assembly 33 and the edge welding cutter assembly 34 are common technical means for performing welding and packaging on the fabric opening edge in the prior art, and will not be described in detail herein.
The ultrasonic die head assembly 31 and the welding knife assembly 32 act in a matched mode, two forming welding lines 1 which are symmetrical front and back can be formed on the cloth in a welding mode, each forming welding line 1 is used for independently wrapping and packaging each spring in a separated mode, at least one section of each forming welding line 1 is oblique lines or arc lines, namely the forming welding lines 1 are in a non-vertical state, each spring is packaged in a non-vertical state, the forming welding lines of the oblique lines or the arc lines form large gap areas 2, the front and back adjacent springs are separated at a certain distance, and therefore the using amount of the springs can be reduced.
In some embodiments, the ultrasonic die assembly 31 is formed by combining a plurality of ultrasonic dies to form an ultrasonic welding plane for welding the cloth, and the welding knife assembly 32 is formed by three welding knives spaced front and back, and the front and back welding knives respectively have welding heads 321 with symmetrical shapes, wherein the middle section of the welding heads 321 is arc-shaped, and the upper and lower edge sections are linear. The middle welding knife also has a welding head 321 with a symmetrical shape, wherein the middle section of the welding head 321 is oval, and the upper and lower edge sections are linear.
The ultrasonic die head assembly 31 and the welding knife assembly 32 can form two symmetrically distributed forming welding seams 1 through each matching action, the front and rear symmetrically distributed forming welding seams 1 can form a shape of "()", the top and the bottom of the inner side welding seam in the front and rear forming welding seams 1 are straight line segments and share one welding seam, namely the welding seams are overlapped, the middle of the inner side welding seam is an arc line segment, and therefore an oval gap area 2 can be formed in the middle area. The middle of the outboard weld abuts the middle of the adjacent outboard weld, where "abutting" is not limited to only abutting contact, but a slight gap may exist.
Each forming welding line 1 forms an arc-shaped cavity on the cloth, a single spring is wrapped and packaged, the spring packaged in the arc-shaped cavity is limited by the arc-shaped cavity and can only be stably fixed in the cloth in an arc-shaped state, and the middle positions of two adjacent springs can be mutually abutted; alternatively, they can abut each other in the top or bottom position. Therefore, even if a gap area 2 exists between adjacent springs, the bagged spring cannot be stretched and deformed, and the size stability of the bagged spring is ensured.
Referring to fig. 10 and 11, of course, the specific shape of the formed weld 1 can also be flexibly adjusted, that is, the specific shape of the welding heads 321 of the three welding knives is changed, for example, the front and rear welding heads 321 are symmetrical, the upper and lower edge sections are linear, and the middle section is oblique; the middle section of the welding head 321 in the middle is in an oblique line shape and is distributed in a splayed shape, and the upper edge section and the lower edge section are in a linear shape. In this way, in the formed weld 1 adjacent to each other in the front-rear direction, the top or the top weld is abutted, and here, "abutting" is not limited to only abutting and contacting, and a slight gap may exist.
Each forming welding seam 1 forms an inclined cavity on the cloth, a single spring is wrapped and packaged, the spring packaged in the inclined cavity is limited by the inclined cavity, the spring packaged in the inclined cavity can only be fixed in the cloth in an inclined state, and the two adjacent springs can abut against each other at the top or the top position. Therefore, even if a gap area 2 exists between adjacent springs, the bagged spring cannot be stretched and deformed, and the size stability of the bagged spring is ensured.
At least one section of the forming welding line 1 is oblique line or arc line, the specific shape, arc curvature, inclination angle and the like of the forming welding line can be selected and changed by technicians in the field according to the shape of the special-shaped bagged spring string, and the forming welding line mainly comprises springs which are wrapped and packaged and are in a non-vertical state and are firmly fixed in cloth, so that front and back adjacent springs are separated by a certain distance, and at least one part of the adjacent springs can be mutually abutted.
The first pressing plate 35 is further arranged between the ultrasonic die head assembly 31 and the welding knife assembly 32, a gap 351 is formed in the first pressing plate 35 in a penetrating mode, a welding head 321 of the welding knife assembly 32 penetrates through the gap 351 to weld the cloth to form a formed welding seam 1, the first pressing plate 35 and the ultrasonic die head assembly 31 clamp the cloth and the springs which are kept in the cloth in a compressed state together, and the springs which are located in the cloth before the bagged spring string is pulled out are prevented from being opened. A second pressing plate 36 is further arranged on one side of the ultrasonic die head assembly 31, the second pressing plate 36 and an ultrasonic vibration plane formed by the ultrasonic die head assembly 31 are located on the same plane, and the first pressing plate 35 and the second pressing plate 36 clamp the cloth and the spring which is kept in the cloth in a compressed state relatively and jointly to prevent the spring from opening.
Referring to fig. 8 and 9, in some embodiments, the spreading mechanism 40 includes two spreading rollers 41 disposed opposite to each other, and the edges of the two spreading rollers 41 are pressed together to clamp the two side edges of the cloth, so that the string of pocketed springs can be continuously pulled out when the spreading rollers rotate, a gap is formed between the two spreading rollers 41, and the cloth and the springs in the cloth pass through the gap. As shown in fig. 8, when the middle area of the upper and lower cloth stretching rollers 41 is large, in order to prevent the spring from expanding, the first pressing plate 35 and the second pressing plate 36 also have a portion extending into the gap between the upper and lower cloth stretching rollers 41 to prevent the spring from expanding at the cloth stretching rollers 41.
The cloth feeding mechanism 10, the welding and packaging mechanism 30 and the cloth pulling mechanism 40 are all arranged on a turnover rack 50, the turnover rack 50 is provided with two bearing disks 51, two bearing supports 52 for supporting the bearing disks 51 are arranged below the turnover rack 50, the bearing disks 51 are driven to rotate through a driving mechanism (not shown), the whole turnover rack 50 can be driven to rotate, and therefore a certain deflection angle is formed between the turnover rack 50 and the spring compression conveying mechanism 20.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A pocketed spring packing apparatus, comprising:
a cloth feeding mechanism for feeding cloth along a predetermined path;
the spring compression conveying mechanism compresses the springs and conveys the compressed springs into the cloth;
the welding and packaging mechanism is used for welding the cloth to form forming welding seams to separate and package the springs in the cloth, at least one section of each forming welding seam is oblique line or arc line, the adjacent forming welding seams are symmetrically distributed and exist in at least partial gap area, the welding and packaging mechanism comprises an ultrasonic die head assembly and a welding knife assembly which are oppositely arranged, the ultrasonic die head assembly and the welding knife assembly act on the cloth to form two symmetrically distributed forming welding seams at one time, the adjacent forming welding seams are overlapped or abutted with at least one section of welding seam to package the springs in the cloth in an inclined or arc state, the ultrasonic die head assembly forms an ultrasonic welding plane, and the welding knife assembly is provided with a welding knife for forming the forming welding seams; and
and the cloth pulling mechanism is used for pulling out the bagged spring which is welded and packaged.
2. The pocketed spring packaging apparatus of claim 1, wherein: the cloth welding device is characterized by further comprising a first pressing plate arranged between the ultrasonic die assembly and the welding knife assembly, and the first pressing plate is provided with a gap for the welding knife assembly to penetrate through for welding the cloth.
3. The pocketed spring packaging apparatus of claim 2, wherein: the cloth material feeding device is characterized by further comprising a second pressing plate arranged on one side of the ultrasonic die assembly, and a gap for the cloth material and a spring in the cloth material to pass through is formed between the first pressing plate and the second pressing plate.
4. The pocketed spring packaging apparatus of claim 1, wherein: the cloth spreading mechanism comprises cloth spreading rollers which are oppositely arranged, the edges of two sides of the cloth are pressed by the cloth spreading rollers, so that the cloth spreading rollers rotate to drive the bagged springs to be pulled out, and a gap for the cloth and the springs in the cloth to pass through is formed in the middle of the cloth spreading rollers.
5. The pocketed spring packaging apparatus of claim 1, wherein: the cloth feeding mechanism is arranged on the frame, the welding and packaging mechanism is arranged on the frame, the cloth pulling mechanism is arranged on the frame, and the spring compression conveying mechanism is arranged on the frame.
6. The pocketed spring packaging apparatus of claim 5, wherein: the cloth feeding mechanism comprises two cloth folding baffles for folding and conveying cloth, the spring compression conveying mechanism comprises two conveying baffles with end parts extending into the space between the two cloth folding baffles and conveying belts wound outside the conveying baffles respectively, and a deflection angle is formed between the cloth folding baffles and the conveying baffles.
7. A method of pocketed spring packing, carried out by the pocketed spring packing apparatus of any of claims 1 to 6, comprising the steps of:
providing a fabric continuously conveyed along a predetermined path;
compressing the spring and conveying the spring into the cloth;
welding the cloth to form a formed welding seam so as to separate and independently encapsulate the springs in the cloth; at least one section of the forming welding line is a slant line or an arc line, the adjacent forming welding lines are symmetrically distributed and exist in at least partial gap area, the symmetrically distributed forming welding lines form symmetrically distributed cavities for accommodating the springs on the cloth, at least one section of the cavity is an arc section or an inclined section so as to encapsulate the springs in the cloth in an inclined or arc state, the ultrasonic die head assembly and the welding knife assembly are matched to act together to form two symmetrically distributed forming welding lines, and the springs are symmetrically encapsulated in the cavities in an inclined or arc state after being opened;
and pulling out the welded and packaged bagged spring.
8. The pocketed spring packaging method of claim 7, wherein: in the formed welding seams formed by welding the cloth, at least one section of the adjacent formed welding seams are overlapped or abutted, so that at least one part of the two adjacent springs is abutted with each other, and the rest parts are relatively far away from each other to form a gap area.
9. The pocketed spring packaging method of claim 7, wherein: the spring is delivered into the cloth in a biased compressed state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619187.8A CN109573936B (en) | 2018-12-27 | 2018-12-27 | Packaging device and method for bagged springs |
| PCT/CN2019/075887 WO2020133665A1 (en) | 2018-12-27 | 2019-02-22 | Pocket spring encapsulation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811619187.8A CN109573936B (en) | 2018-12-27 | 2018-12-27 | Packaging device and method for bagged springs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109573936A CN109573936A (en) | 2019-04-05 |
| CN109573936B true CN109573936B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811619187.8A Active CN109573936B (en) | 2018-12-27 | 2018-12-27 | Packaging device and method for bagged springs |
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| Country | Link |
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| CN (1) | CN109573936B (en) |
| WO (1) | WO2020133665A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170262B (en) * | 2019-10-09 | 2021-05-07 | 广州市联柔机械设备有限公司 | Double-row bagged spring and packaging device, method and manufacturing equipment thereof |
| CN110683125A (en) * | 2019-10-21 | 2020-01-14 | 浙江华剑智能装备股份有限公司 | Production equipment and production method of bagged spring |
| CN112027216B (en) * | 2020-09-24 | 2022-04-05 | 珠海大横琴科技发展有限公司 | Automatic packaging system |
| CN112914298B (en) * | 2021-01-22 | 2023-01-13 | 广州市联柔机械设备有限公司 | Equipment for preparing bagged spring strings |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1344223A (en) * | 1999-03-17 | 2002-04-10 | 弹簧成形技术有限公司 | Method and appts. for mfg. innerspring assemblies |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3429767A (en) * | 1965-06-14 | 1969-02-25 | Us Bedding Co The | Production of cushion and mattress constructions |
| FR2751248B1 (en) * | 1996-07-18 | 1998-10-09 | Oniris Sa | METHOD OF ASSEMBLING A MATTRESS MADE FROM CHAINS OF BAGGED SPRINGS |
| JP2003204844A (en) * | 2002-01-11 | 2003-07-22 | Nishikawa Sangyo Kk | Mattress |
| CN103156439A (en) * | 2013-03-15 | 2013-06-19 | 广州市联柔机械设备有限公司 | Interspersed cloth bag spring cushion |
| CN103950885B (en) * | 2014-04-25 | 2015-08-05 | 广州市联柔机械设备有限公司 | A kind of Novel packaged spring manufactures device and bagged-spring production method |
| US9968202B2 (en) * | 2015-02-13 | 2018-05-15 | L&P Property Management Company | Pocketed spring comfort layer and method of making same |
| CN205273990U (en) * | 2015-11-18 | 2016-06-01 | 广州市联柔机械设备有限公司 | Spring cluster packaging mechanism in bags |
| CN206202802U (en) * | 2016-11-10 | 2017-05-31 | 广州市联柔机械设备有限公司 | A kind of bagged-spring string encapsulates discharging mechanism |
| CN107518674A (en) * | 2017-09-15 | 2017-12-29 | 广州市联柔机械设备有限公司 | A kind of tilting bagged-spring string and bagged spring bed core |
| CN107518675B (en) * | 2017-09-22 | 2020-11-17 | 广州市联柔机械设备有限公司 | Mutually supporting bagged spring bed core |
-
2018
- 2018-12-27 CN CN201811619187.8A patent/CN109573936B/en active Active
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2019
- 2019-02-22 WO PCT/CN2019/075887 patent/WO2020133665A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1344223A (en) * | 1999-03-17 | 2002-04-10 | 弹簧成形技术有限公司 | Method and appts. for mfg. innerspring assemblies |
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| WO2020133665A1 (en) | 2020-07-02 |
| CN109573936A (en) | 2019-04-05 |
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