Bagged spring manufacturing equipment, spring mattress production line and bagged spring manufacturing method

Abstract

The present application provides a bagged spring manufacturing device, a spring bed net production line, and a bagged spring manufacturing method. The bagged spring manufacturing device includes a spring feeding module, a sewing module, and a fabric conveying module. The spring feeding module is used to compress the spring vertically and feed the spring. The sewing module is located downstream of the spring feeding module. The sewing module includes at least one sewing assembly. The sewing assembly includes a sewing machine and a first driving member. The first driving member is used to drive the sewing machine to continuously sew two layers of fabric longitudinally and transversely. The fabric conveying module is located downstream of the spring feeding module. The fabric conveying module includes a fabric feeding assembly, a first holding assembly, and a fabric tensioning assembly. The fabric feeding assembly includes conveying members arranged in pairs vertically; the first holding assembly includes a first limiting member, and the first limiting member forms a first limiting channel for pressing the spring; the fabric tensioning assembly is used to tension the fabric. The bagged spring manufacturing device can improve production efficiency and sewing quality.

Description

Technical Field

[0001] The present application relates to the field of manufacturing of pocket springs, particularly to a pocket spring manufacturing device, a spring bed net production line, and a pocket spring manufacturing method. Background Art

[0002] Pocket springs are widely used in the production of mattresses and sofas. The mainstream pocket spring string production equipment usually first longitudinally welds non-woven fabric into a cloth bag, then compresses the spring and feeds it into the cloth bag, and encapsulates the spring in an independent bag chamber by transversely welding the cloth bag. The covering material of this kind of pocket spring is restricted by the welding process and generally uses non-woven fabric made of polypropylene fiber, and it is impossible to use fabrics made of natural fibers such as cotton, linen, wool, and silk.

[0003] In the related art, an automated manufacturing device for stitched pocket springs is proposed, which includes a first sewing mechanism and a second sewing mechanism. First, the first sewing mechanism longitudinally stitches the fabric to form a cloth bag, then the spring is fed into the cloth bag, and then the second sewing mechanism transversely stitches the fabric to encapsulate the spring in an independent bag chamber. The stitched pocket spring uses the sewing method to replace the welding process, thus overcoming the limitations of the covering material.

[0004] In the above automated manufacturing device, the first sewing mechanism can only longitudinally stitch one side edge of the fabric, that is, the other side edge of the fabric can only be a folded edge or a pre-stitched edge, and it is impossible to stitch both sides simultaneously for the case where the upper and lower layers of the fabric are separate fabrics; the stitching trajectory of the second sewing mechanism is discontinuous, and the second sewing mechanism needs to stop each time it stitches transversely, and then starts again when it reaches the position of the next transverse stitching. Therefore, the problem of continuous stitching is not solved, which results in the production efficiency and applicability of the device being difficult to be further improved.

[0005] In addition, the problem of fabric tensioning is not solved in the related art. When the fabric is longitudinally pulled forward, the fabric itself will produce lateral displacement and lateral shrinkage, and the uneven fabric is prone to produce wrinkles during sewing, affecting the product quality. Summary of the Invention

[0006] The present application aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present application provides a pocket spring manufacturing device, a spring bed net production line, and a pocket spring manufacturing method, and the pocket spring manufacturing device can improve the production efficiency and quality of stitched pocket springs.

[0007] The bagged spring manufacturing equipment provided by the present application includes a spring feeding module, a sewing module, and a fabric conveying module. The spring feeding module is used to compress the spring vertically and push the spring between two layers of fabrics that are opposite in the vertical direction. The sewing module is located downstream of the spring feeding module in the longitudinal direction. The sewing module includes at least one sewing component, and the sewing component includes a sewing machine and a first driving member. The first driving member is used to drive the sewing machine to move horizontally. The sewing machine is used to continuously sew the two layers of fabrics in the longitudinal and horizontal directions, so that the fabrics form a plurality of independent cloth bags arranged in parallel in the longitudinal direction, and at the same time, each spring is encapsulated in the cloth bag to form a string of bagged springs. The fabric conveying module is located downstream of the spring feeding module in the longitudinal direction. The fabric conveying module includes a fabric feeding component, a first holding component, and a fabric tensioning component. The fabric feeding component includes conveying members arranged in pairs in the vertical direction, and the conveying members are used to clamp the fabric and convey it downstream. The first holding component includes a first limiting member, and the first limiting member forms a first limiting channel for pressing the spring in the two layers of fabrics. The fabric tensioning component is used to pull the fabric horizontally to tension the fabric.

[0008] The bagged spring manufacturing equipment provided by the present application has at least the following technical effects: on the one hand, by using a sewing machine that can move horizontally and integrating the sewing of fabrics in the longitudinal and horizontal directions, the sewing machine can continuously sew the fabrics, thereby avoiding the negative impact of frequent start and stop of the sewing machine on production efficiency and improving production efficiency; on the other hand, the sewing module is located downstream of the spring feeding module, and the sewing machine sews the fabric longitudinally after the spring is fed, thereby reducing the influence of spring feeding on the sewing effect of the fabric, and tensioning the fabric during conveying and sewing through the fabric tensioning component, reducing or even eliminating the wrinkles of the fabric, and thus improving the sewing quality.

[0009] According to some embodiments of the present application, the first limiting member includes a limiting plate and a second rolling body. The second rolling body is installed on the limiting plate, and the second rolling body is used to contact the surface of the fabric to reduce the friction force when the fabric is conveyed.

[0010] According to some embodiments of the present application, the fabric tensioning component includes at least one group of first rolling bodies. One group of the first rolling bodies includes at least two first rolling bodies arranged in cooperation in the vertical direction to jointly clamp the edge of the fabric. The first rolling bodies are used to limit the displacement of the fabric in the horizontal direction to tension the fabric.

[0011] According to some embodiments of the present application, the fabric has a folded edge on one side in the transverse direction, and the fabric tensioning assembly includes a tensioning rod and at least one set of limiting wheels, the tensioning rod extends from the feed folding port of the fabric in the longitudinal direction to the downstream of the sewing machine to support the folded edge, a set of limiting wheels includes at least two limiting wheels arranged in cooperation in the vertical direction, the limiting wheels are used to clamp the folding edge or the tensioning rod, and the limiting wheels are used to limit the deformation or displacement of the fabric in the transverse direction to tension the fabric.

[0012] According to some embodiments of the present application, the sewing module includes two groups of sewing components, and the two groups of sewing components are respectively used to sew two sides of the cloth.

[0013] According to some embodiments of the present application, the position of the sewing machine in the longitudinal direction is adjustable.

[0014] According to some embodiments of the present application, the cloth conveying module includes a plurality of first holding components, each of which is spaced apart in the longitudinal direction, and a sewing area for avoiding the sewing machine is formed between adjacent first holding components.

[0015] According to some embodiments of the present application, the spring loading module includes a compression assembly and a pushing assembly, the compression assembly is used to compress the spring, the pushing assembly is located on the side of the compression assembly away from the first retaining assembly, and the pushing assembly is used to push the spring toward the first limiting channel of the first retaining assembly.

[0016] According to some embodiments of the present application, the compression assembly includes a pressing member and a third driving member, the two pressing members are arranged opposite to each other in the vertical direction, the third driving member is used to drive the pressing member to compress the spring, and the pushing assembly includes a first pushing member and a fourth driving member, the fourth driving member is used to drive the first pushing member to push the spring.

[0017] According to some embodiments of the present application, the first pushing member includes a positioning block, the positioning block is formed with a positioning surface matching the shape of the spring, and the positioning surface is used to contact the spring.

[0018] According to some embodiments of the present application, the spring loading module includes a second retaining assembly, the second retaining assembly includes a second limiting member, the second limiting member forms a second limiting channel, one end of the second limiting channel is connected to the compression assembly, and the other end of the second limiting channel extends between the two layers of fabric located in the first limiting channel.

[0019] According to some embodiments of the present application, the second holding component includes a fifth driving member for driving the second limiting member to approach or move away from the first limiting member. The first pushing member advances the compressed spring into the second limiting channel and, together with the second limiting member, feeds the spring between two layers of the fabric located in the first limiting channel. After the second limiting member retracts first, the first pushing member then exits the first limiting channel.

[0020] According to some embodiments of the present application, the spring feeding module includes a calibration component, which includes a second pushing member and a sixth driving member. The second pushing member is longitudinally upstream of the first limiting member, and the sixth driving member is used to drive the second pushing member to move longitudinally to adjust the position of the spring.

[0021] The spring bed net production line provided by the present application includes the bagged spring manufacturing equipment provided by the present application.

[0022] According to the bagged spring manufacturing method provided by the present application, using the bagged spring manufacturing equipment provided by the present application, the bagged spring manufacturing method includes the following steps:

[0023] The fabric conveying module conveys the fabric longitudinally.

[0024] The spring feeding module acquires and compresses the spring vertically.

[0025] The spring feeding module pushes the spring between two layers of the fabric located in the first limiting channel.

[0026] The sewing machine stitches the fabric longitudinally and transversely to stitch the fabric into a cloth bag with multiple bag chambers.

[0027] The spring bed net production line provided by the present application includes the bagged spring manufacturing equipment, and the bagged spring manufacturing method provided by the present application uses the bagged spring manufacturing equipment. Therefore, the spring bed net production line and the bagged spring manufacturing method correspondingly have the beneficial effects provided by the bagged spring manufacturing equipment, which will not be elaborated here.

[0028] According to some embodiments of the present application, the spring feeding module pushing the spring between two layers of the fabric located in the first limiting channel includes:

[0029] The first pushing member moves towards the first limiting member and pushes the compressed spring into the second limiting channel of the second limiting member.

[0030] The second limiting member continues to move along with the first pushing member so that the spring reaches the set position in the first limiting channel under the limitation of the second limiting channel.

[0031] The first pushing member is stationary, and the second limiting member moves away from the first limiting member to transfer the spring to the first limiting channel.

[0032] The first pushing member moves away from the first limiting member.

[0033] According to some embodiments of the present application, when the spring feeding module pushes the spring between two layers of the fabric located in the first limiting channel, it further includes:

[0034] The second pushing member moves towards the first limiting member in the longitudinal direction to adjust the position of the spring, and further adjust the spacing between adjacent springs in the longitudinal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present application will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1 is a schematic diagram of the stitching structure of a pocket spring manufactured by the pocket spring manufacturing equipment using the embodiments of the present application;

[0037] Figure 2 is a schematic layout diagram of the pocket spring manufacturing equipment according to the embodiments of the present application;

[0038] Figure 3 is a schematic layout diagram of the pocket spring manufacturing equipment according to the embodiments of the present application;

[0039] Figure 4 is a partial structural schematic diagram of the sewing component of the pocket spring manufacturing equipment according to the embodiments of the present application;

[0040] Figure 5 is a partial structural schematic diagram of the fabric conveying module of the pocket spring manufacturing equipment according to the embodiments of the present application;

[0041] Figure 6 is Figure 2 a partial enlarged view of area A in;

[0042] Figure 7 is Figure 2 a partial enlarged view of area B in;

[0043] Figure 8 is a structural schematic diagram of the fabric tensioning component of the pocket spring manufacturing equipment according to the embodiments of the present application;

[0044] Figure 9 is a partial structural schematic diagram of the material pushing component of the pocket spring manufacturing equipment according to the embodiments of the present application;

[0045] Figure 10It is a partial structural schematic diagram of the spring feeding module of the bagged spring manufacturing equipment according to an embodiment of the present application;

[0046] Figure 11 It is a partial structural schematic diagram of the spring feeding module of the bagged spring manufacturing equipment according to an embodiment of the present application;

[0047] Figure 12 It is Figure 11 A partial enlarged view of area C in

[0048] Reference numerals:

[0049] The first holding component 1100, the first limiting member 1110, the limiting plate 1111, the second rolling body 1112, the seventh driving member 1120, the first rolling body 1210, the tension rod 1220, the limiting wheel 1230, the second mounting seat 1300, the conveying member 1410, the eighth driving member 1420, the ninth driving member 1430, the movable shaft 1440, the fixed shaft 1450, the conveyor belt 1460, the pressing plate 1470, the spring dialing component 1500, the dialing plate 1510, the cloth guiding component 1600,

[0050] The compression component 2100, the pressing member 2110, the bottom plate 2111, the guiding plate 2112, the pressing plate 2113, the third driving member 2120, the pushing component 2200, the first pushing member 2210, the positioning block 2211, the guide rod 2212, the third mounting seat 2213, the fourth driving member 2220, the second holding component 2300, the second limiting member 2310, the fifth driving member 2320, the fourth mounting seat 2410, the calibration component 2500, the second pushing member 2510, the sixth driving member 2520, the transfer component 2600,

[0051] The sewing component 3100, the sewing machine 3110, the first driving member 3120, the second driving member 3130, the first mounting seat 3140, the first screw rod seat 3150,

[0052] The spring production equipment 8000, the spring 9100, the cloth 9200, the sewing thread 9300. Detailed implementation manners

[0053] The embodiments of the present application are described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0054] In the description of this application, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application.

[0055] In the description of this application, the meaning of "several" is one or more, the meaning of "multiple" is more than two. Understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, and understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0056] In the description of this application, unless otherwise clearly defined, words such as "set", "install", "connect", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in this application in combination with the specific content of the technical solution.

[0057] It can be understood that in this application, two layers of fabric 9200 are sewn to form a cloth bag with multiple independent chambers, and the springs 9100 are encapsulated in the chambers to form pocket springs, and multiple pocket springs are connected in series to form a spring string.

[0058] Refer to Figure 1 , in this application, the longitudinal direction refers to the conveying direction of the fabric 9200, that is, the length direction of the formed spring string, the X direction, the transverse direction refers to the width direction of the fabric 9200, that is, the direction where the compression surface of the spring string is located, the Y direction, and the vertical direction refers to the thickness direction of the fabric 9200, that is, the direction perpendicular to the longitudinal and transverse directions. Generally speaking, the vertical direction of the pocket spring manufacturing equipment is parallel to the vertical direction in the absolute coordinate system, that is, the Z direction. However, in some embodiments, according to different layout methods, the vertical direction may also be parallel to other directions in the absolute coordinate system.

[0059] Refer to Figure 2 , Figure 3 , Figure 4 and Figure 5, The bagged spring manufacturing equipment provided by the present application includes a spring feeding module, a sewing module, and a fabric conveying module. The spring feeding module is used to compress the spring 9100 vertically and push the spring 9100 between two layers of fabric 9200 that are opposite to each other vertically. The sewing module is located downstream of the spring feeding module longitudinally. The sewing module includes at least one sewing component 3100. The sewing component 3100 includes a sewing machine 3110 and a first driving member 3120. The first driving member 3120 is used to drive the sewing machine 3110 to move horizontally. The sewing machine 3110 is used to continuously sew the two layers of fabric 9200 longitudinally and horizontally, so that the fabric 9200 forms a plurality of independent cloth bags arranged in parallel longitudinally, and at the same time encapsulates each spring 9100 in the cloth bag to form a string of bagged springs. The fabric conveying module is located downstream of the spring feeding module longitudinally. The fabric conveying module includes a fabric feeding component, a first holding component 1100, and a fabric tensioning component. The fabric feeding component includes conveying members 1410 arranged in pairs vertically. The conveying members 1410 are used to hold the fabric 9200 and convey it downstream. The first holding component 1100 includes a first limiting member 1110. The first limiting member 1110 forms a first limiting channel for pressing the spring 9100 in the two layers of fabric 9200. The fabric tensioning component is used to pull the fabric 9200 horizontally to tension the fabric 9200.

[0060] The present application also provides a method for manufacturing bagged springs. The method for manufacturing bagged springs uses the bagged spring manufacturing equipment provided by the present application. The method for manufacturing bagged springs includes the following steps:

[0061] Step S100: The fabric conveying module conveys the fabric longitudinally.

[0062] Step S200: The spring feeding module obtains and compresses the spring vertically.

[0063] Step S300: The spring feeding module pushes the spring between the two layers of fabric located in the first limiting channel.

[0064] Step S400: The sewing machine sews the fabric longitudinally and horizontally to sew the fabric into a cloth bag with multiple chambers.

[0065] The present application also provides a spring bed net production line. The spring bed net production line includes the bagged spring manufacturing equipment provided by the present application.

[0066] In the related art, a horizontal sewing machine and a vertical sewing machine are respectively responsible for sewing horizontal stitches and vertical stitches. Therefore, the horizontal stitches are not continuous. In the present application, referring to Figure 1The pocket spring manufacturing equipment uses a sewing machine 3110 that can move in the horizontal direction, and integrates the longitudinal and transverse stitching of the fabric 9200, that is, the transverse stitches and longitudinal stitches separated in the related art are integrated into a continuous stitch 9300, so that the sewing machine 3110 can sew the fabric 9200 continuously, thereby avoiding the negative impact of frequent start-up and stop of the sewing machine 3110 on production efficiency and improving production efficiency.

[0067] In the related art, the fabric 9200 is first sewn into a bag using longitudinal stitching, and then the spring 9100 is loaded from the bag opening. To ensure stability when the bag is inserted, the two layers of fabric 9200 must be stretched apart when the spring 9100 is loaded, resulting in poor stitching quality at the bag opening. Wrinkles generated during fabric transportation can also negatively impact stitching quality. In the present application, the stitching module is located downstream of the spring loading module, and the original transverse and longitudinal stitching are integrated. After the spring 9100 is loaded, the sewing machine 3110 stitches the fabric 9200 longitudinally. The first retaining assembly 1100 limits the spring 9100 to prevent it from stretching the fabric 9200. The fabric tensioning assembly further tensions the fabric 9200 during transport and stitching, reducing or even eliminating wrinkles in the fabric 9200. This reduces the impact of the spring 9100 loading on the fabric stitching effect, thereby improving stitching quality.

[0068] Furthermore, because the related art both performs longitudinal stitching and pocketing of the spring 9100 at the pocket opening, the longitudinal sewing machine can only longitudinally stitch one side of the fabric 9200. That is, the other side of the fabric 9200 can only be a folded edge (i.e., the two layers of fabric 9200 are integrated) or a pre-stitched edge. If the two layers of fabric 9200 are separate fabrics, it is not possible to sew both sides simultaneously. In the present application, however, the spring 9100 loading and the pocketing are performed separately, so the pocket spring manufacturing equipment can sew one or both sides of the fabric 9200. This allows for both integrated and separate fabrics, improving the applicability of the pocket spring manufacturing equipment.

[0069] The pocket spring manufacturing method uses the pocket spring manufacturing equipment, and the spring bed net production line includes the pocket spring manufacturing equipment, so it has the corresponding beneficial effects brought by the pocket spring manufacturing equipment, which will not be repeated here.

[0070] It can be understood that for the fabric 9200 with one side being the folding edge, the stitching module includes a set of sewing components 3100, and for two separate layers of fabric 9200, the stitching module includes two sets of sewing components 3100, and the two sets of sewing components 3100 are respectively used to stitch the two sides of the fabric 9200 in the transverse direction. Generally speaking, only one stitch line 9300 is needed on one side of the fabric 9200, so only one sewing component 3100 is needed in one set. In some other cases, for reinforcement or other considerations, multiple stitch lines 9300 may be needed on one side of the fabric 9200, and correspondingly, multiple sewing components 3100 are included in one set at this time.

[0071] The present application can integrate the separated transverse stitch lines and longitudinal stitch lines in the related technology in different ways. In other words, the stitch line 9300 of the sewing machine 3110 in the present application can adopt different designs. Figure 1 Two possible designs of the stitch line 9300 are shown and different stitch lines 9300 are distinguished by different dashed lines. Refer to Figure 1 , in some embodiments, the two stitch lines 9300 are respectively located on the two sides of the fabric 9200; in some embodiments, one side of the fabric 9200 is the folding edge and there is only one stitch line on the fabric 9200. In addition, the stitch line 9300 can also adopt design methods such as crossing or staggering.

[0072] In some embodiments, the position of the sewing machine 3110 in the longitudinal direction is adjustable. For example, the sewing component 3100 may include a second driving member 3130, and the second driving member 3130 is used to drive the sewing machine 3110 to move in the longitudinal direction. The second driving member 3130 can adjust the distance between the sewing machine 3110 and the spring feeding module or the distance between two sewing machines 3110, so that the stitch line 9300 can match different springs 9100.

[0073] For example, refer to Figure 4 , in Figure 4 's embodiment, the sewing component 3100 further includes a first mounting base 3140. A guide rail slider mechanism extending in the transverse direction is mounted on the first mounting base 3140. The sewing machine 3110 is movably mounted on the first mounting base 3140 through the guide rail slider mechanism. The first driving member 3120 adopts a rotary motor. The first driving member 3120 is mounted on the first mounting base 3140 and is connected to the sewing machine 3110 through belt transmission to drive the sewing machine 3110 to move in the transverse direction. The first mounting base 3140 is mounted on the frame of the pocket spring manufacturing equipment (not shown in the figure). The second driving member 3130 adopts a first lead screw extending in the longitudinal direction. The first lead screw is mounted on the frame through a first lead screw seat 3150. The first lead screw is provided with a hand wheel, and the position of the sewing machine 3110 is adjusted by manually rotating the first lead screw.

[0074] The first driving member 3120 and the second driving member 3130 can also drive the sewing machine 3110 in a manner commonly used in related technologies in the art.

[0075] To further reduce the influence of the spring 9100 on the sewing quality, in some embodiments, the fabric conveying module includes a plurality of first holding components 1100, and the first holding components 1100 are arranged at intervals in the longitudinal direction, and a sewing area for avoiding the sewing machine 3110 is formed between adjacent first holding components 1100. At this time, referring to Figure 3 , since the springs 9100 on both sides of the sewing machine 3110 are limited by the first holding components 1100, the fabric 9200 before and after sewing will not be overly stretched, which helps to improve the sewing quality. At the same time, in embodiments having a plurality of sewing machines 3110, each sewing machine 3110 is located in a different sewing area, and the sewing area can also improve the consistency of the sewing effects of different sewing machines 3110.

[0076] In some embodiments, the distance between the two first limiting members 1110 is adjustable to adapt to products of different specifications.

[0077] For example, referring to Figure 5 , in some embodiments, the fabric conveying module includes a second mounting seat 1300, one of the first limiting members 1110 is fixedly installed on the second mounting seat 1300, and the other first limiting member's 1110 is installed on the second mounting seat 1300 through a seventh driving member 1120. The seventh driving member 1120 uses a second screw rod with a handwheel, and the second screw rod extends vertically. The distance between the two first limiting members 1110 is adjusted by manually rotating the second screw rod. Of course, in other embodiments, the distance between the two first limiting members 1110 can also be adjusted in an electric manner.

[0078] Continuing to refer to Figure 5 , in some embodiments, the first limiting member 1110 includes a limiting plate 1111 and a second rolling body 1112. The second rolling body 1112 is installed on the limiting plate 1111, and the second rolling body 1112 is used to contact the surface of the fabric 9200, so as to reduce the friction when the fabric 9200 is conveyed and reduce the resistance when the fabric 9200 is conveyed. The second rolling body 1112 can adopt a rolling body design commonly used in related technologies such as rollers, balls, and needle rollers. In some embodiments, the limiting plate 1111 is also provided with inclined guiding portions at both longitudinal ends, so that the spring 9100 is gradually compressed or released during the process of entering and leaving.

[0079] In some embodiments, the conveying member 1410 may be a roller, and the cloth feeding assembly further includes an eighth driving member 1420. The eighth driving member 1420 drives the conveying member 1410 to rotate, so as to convey the cloth 9200 through frictional force. The eighth driving member 1420 may drive the paired conveying members 1410 to rotate synchronously and reversely through gear transmission. Of course, the cloth feeding assembly may also adopt other common cloth feeding designs in related technologies. For example, the conveying member 1410 may be a conveyor belt, and the eighth driving member 1420 drives the conveyor belt to move in a cycle through a pulley, and drives the cloth 9200 to move through the frictional force on the surface of the conveyor belt.

[0080] In some embodiments, the paired two conveying members 1410 can approach or move away from each other, so as to adjust the acting force when conveying the cloth 9200. For example, continue to refer to Figure 5 , the cloth feeding assembly further includes a ninth driving member 1430, a movable shaft 1440 and a fixed shaft 1450. The fixed shaft 1450 and the movable shaft 1440 are installed on the second mounting seat 1300. The fixed shaft 1450 is fixed vertically, and the movable shaft 1440 can move vertically. The paired two conveying members 1410 are respectively installed on the fixed shaft 1450 and the movable shaft 1440. The ninth driving member 1430 is connected to the movable shaft 1440, and the ninth driving member 1430 can drive the movable shaft 1440, so as to adjust the distance between the fixed shaft 1450 and the movable shaft 1440.

[0081] In some embodiments, the cloth tensioning assembly includes at least one set of first rolling bodies 1210. The first rolling bodies 1210 are used to pull the cloth 9200 in the transverse direction to tension the cloth 9200. The first rolling bodies 1210 can roll along with the conveying of the cloth 9200, so it will not affect the normal conveying of the cloth 9200.

[0082] The first rolling bodies 1210 can pull the cloth 9200 in the transverse direction in different ways. One set of first rolling bodies 1210 includes at least two first rolling bodies 1210 arranged vertically in cooperation to jointly clamp the edge of the cloth. For example, refer to Figure 6 , in some embodiments, multiple first rolling bodies 1210 are respectively located on both sides of the cloth 9200 vertically, and the multiple first rolling bodies 1210 are arranged staggeredly. The first rolling bodies 1210 adopt pinwheels, and the surface of the pinwheel has needle-shaped protrusions. The protrusions penetrate into the cloth 9200, so that a binding force is generated between the pinwheel and the cloth 9200. By adjusting the position of the pinwheel in the transverse direction, the cloth 9200 can be tensioned.

[0083] Specifically, when starting the bagged spring manufacturing equipment, first debug the position of the first rolling bodies 1210 to make the tension condition of the cloth 9200 meet the requirements, and then fix the first rolling bodies 1210 in the transverse direction to ensure that the tension force remains consistent during the subsequent production process.

[0084] In some other embodiments, a friction wheel can also be used for tensioning. Since there is no interference between the friction wheels, the first rolling bodies 1210 on both sides of the fabric 9200 can be arranged in pairs. Two paired friction wheels clamp the fabric 9200, and the friction force of the friction wheels on the fabric 9200 is controlled by adjusting the clamping force. Of course, the friction wheels can also be arranged in a staggered manner.

[0085] The fabric tensioning assembly can use two groups of first rolling bodies 1210 for tensioning. The two groups of first rolling bodies 1210 are respectively located on both sides of the fabric 9200 in the transverse direction. For the fabric 9200 with one side being a folded edge, the characteristics of the folded edge can also be utilized, and a method other than the first rolling body 1210 can be used to tension the side where the folded edge is located.

[0086] For example, in some embodiments, referring to Figure 6 and Figure 7 , the fabric tensioning assembly includes a tensioning rod 1220. The tensioning rod 1220 extends longitudinally from the inlet folding opening of the fabric 9200 (i.e., the bag mouth) to the downstream of the sewing machine 3110. The tensioning rod 1220 is used to support the folded edge, and the first rolling body 1210 is used to pull the other side of the fabric 9200. On the one hand, the tensioning rod 1220 plays a tensioning role, and on the other hand, it can also keep the crease lines of the fabric 9200 consistent, improving the product quality. The fabric tensioning assembly further includes at least one group of limiting wheels 1230. One group of limiting wheels 1230 includes at least two limiting wheels 1230 arranged in cooperation in the vertical direction, so as to clamp the folded edge and the tensioning rod 1220, thereby preventing the tensioning rod 1220 from being bent by force, further restricting the deformation or displacement of the fabric 9200 in the transverse direction, and tensioning the fabric 9200.

[0087] Figure 8 From another perspective, it shows the scenario where the first rolling body 1210, the tensioning rod 1220, and the limiting wheels 1230 act together on the fabric 9200. Referring to Figure 8 , on the side where the non-folded edge of the fabric 9200 is located, the first rolling body 1210 limits the non-folded edge of the fabric 9200 through the protrusions piercing into the fabric 9200. On the side where the folded edge of the fabric 9200 is located, the limiting wheel 1230 can be provided with a limiting groove. The limiting wheel 1230 clamps the tensioning rod 1220 through the limiting groove, and then limits the folded edge of the fabric 9200. The limiting wheel 1230 can also directly clamp the fabric 9200, thereby jamming the tensioning rod 1220, and then limiting the folded edge of the fabric 9200. The combined action on both sides keeps the fabric 9200 in a tensioned state.

[0088] In some embodiments, referring to Figure 9, the fabric conveying module includes a spring dialing component 1500. The spring dialing component 1500 is arranged downstream of the first holding component 1100. The spring dialing component 1500 includes a rotatable dial 1510 which is used to dial the spring 9100 encapsulated in the cloth bag, so as to turn the spring axis from vertical to horizontal. The dial 1510 can adopt the common design in the related technology.

[0089] In some embodiments, the cloth feeding component includes a conveyor belt 1460 and a pressing plate 1470. The conveyor belt 1460 presses the fabric 9200 against the pressing plate 1470 and conveys the fabric 9200 by rotation. At the same time, the positions of the conveyor belt 1460 and the pressing plate 1470 are paired with the position of the spring dialing component 1500. The conveyor belt 1460 and the pressing plate 1470 clamp the fabric 9200 to prevent the spring 9100 from moving horizontally when the spring is dialed.

[0090] Back to Figure 2 , in some embodiments, the fabric conveying module includes a fabric guiding component 1600. The fabric guiding component 1600 is located upstream of the first holding component 1100. The fabric guiding component 1600 is used to guide the folding and conveying direction of the fabric 9200, and also plays a role in supporting the fabric 9200. The fabric guiding component 1600 can adopt the common design in the related technology and will not be elaborated here.

[0091] In the related technology, the spring 9100 is generally fed by clamping with two relatively arranged conveyor belts. Since the conveyor belt needs to be driven by a pulley, the size of the conveyor belt in the vertical direction is relatively large, and enough space needs to be left between two layers of fabric 9200 to ensure that the end of the conveyor belt can extend in.

[0092] In some embodiments of the present application, the spring feeding module includes a compression component 2100 and a pushing component 2200. The position of the compression component 2100 is paired with the first holding component 1100. The compression component 2100 is used to compress the spring 9100. The pushing component 2200 is located on the side of the compression component 2100 away from the first holding component 1100. The pushing component 2200 is used to push the spring 9100 towards the first holding component 1100. By adopting pushing feeding instead of clamping feeding with a conveyor belt, the compression component 2100 only responsible for compressing the spring 9100 helps to reduce the size of the opening between two layers of fabric when the spring 9100 is fed.

[0093] It can be understood that in the related technology, the spring 9100 is sewn longitudinally first and then fed, so the spring 9100 can only be fed from the bag mouth (that is, fed longitudinally). In the bagged spring manufacturing equipment of the present application, when the spring 9100 is fed, the two layers of fabric 9200 are not sewn yet. Therefore, the pushing component 2200 can push the spring 9100 into the first holding component 1100 longitudinally, or as Figure 10 andFigure 11 As shown, the spring 9100 is pushed horizontally into the first holding component 1100.

[0094] Referring to Figure 10 and Figure 11 , in some embodiments, the compression component includes a pressing member 2110 and a third driving member 2120. The two pressing members 2110 are arranged opposite to each other vertically. The third driving member 2120 is used to drive the pressing member 2110 to compress the spring 9100. The pushing component 2200 includes a first pushing member 2210 and a fourth driving member 2220. The fourth driving member 2220 is used to drive the first pushing member 2210 to push the spring 9100.

[0095] The pressing member 2110 can adopt a common pressing design. When pressing, it can be that the third driving member 2120 drives the two pressing members 2110 to move together, or it can also be that one of the pressing members 2110 is stationary and the third driving member 2120 drives the other pressing member 2110 to move.

[0096] For example, in Figure 10 and Figure 11 , one of the pressing members 2110 includes a bottom plate 2111, and the other pressing member 2110 includes a pressing plate 2113. The compression component 2100 includes a fourth mounting seat 2410. The pressing member 2110 with the bottom plate 2111 is fixedly installed on the fourth mounting seat 2410. The third driving member 2120 adopts a rotating motor and is connected to the pressing member 2110 with the pressing plate 2113 through a linkage mechanism, so as to drive the pressing plate 2113 to press reciprocally against the bottom plate 2111 to compress the spring 9100. The fixed pressing member 2110 plays a positioning role, ensuring that the spring 9100 is in the same position after each compression, and improving the repeated precision of feeding. The fourth driving member 2220 can also adopt a rotating motor and is connected to the first pushing member 2210 through a linkage mechanism, so as to drive the first pushing member 2210 to feed reciprocally. The third driving member 2120 and the fourth driving member 2220 can be coupled together through a control method, so that the compression action and the feeding action are coordinated.

[0097] To ensure that the first pushing member 2210 can accurately push the spring 9100 into place, in some embodiments, the first pushing member 2210 includes a positioning block 2211. The positioning block 2211 is formed with a positioning surface that matches the shape of the spring 9100. The positioning surface is used to contact the spring 9100. In Figure 12 embodiments, the positioning block 2211 is provided with a trapezoidal groove. At this time, the inclined surface corresponding to the groove is the positioning surface. The two positioning surfaces face each other, achieving the effect of positioning and centering the spring 9100. In some other embodiments, the positioning block 2211 can also be provided with an arc-shaped groove. At this time, the arc surface corresponding to the groove is the positioning surface.

[0098] In order to ensure that the first pusher 2210 can stably push the spring 9100, the first pusher 2210 can be guided by a guide structure. Figure 11 In some embodiments, the pressing member 2110 having a base plate 2111 further includes a guide plate 2112, which is mounted on the base plate 2111. A guide groove is formed between the guide plate 2112 and the base plate 2111. The first pushing member 2210 includes a guide rod 2212, a positioning block 2211 mounted on one end of the guide rod 2212, and the guide rod 2212 is inserted into the guide groove. The first pushing member 2210 further includes a third mounting seat 2213, the other end of the guide rod 2212 mounted on the third mounting seat 2213, and the third mounting seat 2213 is mounted on the fourth mounting seat 2410 via a guide rail slider mechanism. The guide groove and the guide rail slider mechanism jointly guide the first pushing member 2210, ensuring stable operation. Of course, the first pushing member 2210 can also be guided by other commonly used guide structures.

[0099] Since the clamping member 2110 needs to move vertically and interfere with the fabric 9200, if the spring 9100 is directly transferred from the compression assembly 2100 to the first retaining assembly 1100, the clamping member 2110 needs to first close the compression spring, then approach and extend between the two layers of fabric 9200. After the loading is completed, the clamping member 2110 moves away and opens. The compression assembly 2100 has many action steps and cannot be performed in parallel, which is not conducive to improving the loading efficiency.

[0100] To this end, in some embodiments, the spring loading module includes a second retaining assembly 2300, which includes a second limiting member 2310. The second limiting member 2310 forms a second limiting channel. One end of the second limiting channel is connected to the compression assembly 2100, and the other end of the second limiting channel extends between the two layers of fabric 9200 located in the first limiting channel. The first pushing member 2210 first pushes the spring 9100 into the second limiting channel and then into the first limiting channel. The provision of the second retaining assembly 2300 helps improve loading efficiency.

[0101] In addition, refer to Figure 11 and Figure 12 The guide groove is located on the fixedly installed pressing member 2110, so after the spring 9100 enters the second limiting channel, the other pressing member 2110 can be opened to prepare for the next compression without affecting the movement of the first pushing member 2210.

[0102] exist Figure 11 In the embodiment, the second limiting member 2310 defines a second limiting channel running through the second limiting member 2310. In other embodiments, two second limiting members 2310 may be vertically arranged opposite to each other to form a second limiting channel between the two second limiting members 2310.

[0103] In some embodiments, the outlet of the second limiting channel is located on one side of the set position of the spring 9100 in the fabric 9200, and the first pushing member 2210 pushes the spring 9100 out of the second limiting channel so that the spring 9100 reaches the set position. When the spring 9100 transfers from the second limiting channel to the first limiting channel, the friction between the spring 9100 and the fabric 9200 easily causes the fabric 9200 to wrinkle, affecting the finished product quality of the bagged spring. For this reason, in some embodiments, the second holding component 2300 includes a fifth driving member 2320, and the fifth driving member 2320 is used to drive the second limiting member 2310 to approach or move away from the first limiting member 1110.

[0104] Correspondingly, in some embodiments, the step S300 of the method for manufacturing a bagged spring includes:

[0105] Step S310: The first pushing member 2210 moves towards the first limiting member 1110 and pushes the compressed spring 9100 into the second limiting channel of the second limiting member 2310.

[0106] Step S320: The second limiting member 2310 continues to move along with the first pushing member 2210 so that the spring 9100 reaches the set position of the first limiting channel under the limitation of the second limiting channel.

[0107] Step S330: The first pushing member 2210 stops, and the second limiting member 2310 moves away from the first limiting member 1110 to transfer the spring 9100 to the first limiting channel.

[0108] Step S340: The first pushing member 2210 moves away from the first limiting member 1110.

[0109] In other words, when loading the spring 9100, first move the spring 9100 and the second limiting member 2310 to the set position, and then transfer the spring 9100 to be limited by the first limiting member 1110 by removing the second limiting member 2310. During the movement to the set position, the second limiting member 2310 contacts the fabric 9200, and the elastic force of the spring 9100 is borne by the second limiting member 2310. The pressure exerted by the second limiting member 2310 on the fabric 9200 is small, so the fabric 9200 is not likely to wrinkle. During the process of removing the second limiting member 2310, the spring 9100 contacts the fabric 9200, and the spring 9100 is abutted and limited by the first pushing member 2210, so that the spring 9100 does not displace or hardly displaces in its own radial direction, so the fabric 9200 is also not likely to wrinkle. Thus, the risk of the fabric 9200 wrinkling during the feeding process of the spring 9100 is reduced.

[0110] In Figure 11In an embodiment, the second limiting member 2310 is mounted on the fourth mounting seat 2410 through a guide rail slider mechanism to ensure smooth and accurate movement.

[0111] Returning to Figure 2 , in some embodiments, the spring feeding module further includes a transfer component 2600. The transfer component 2600 is docked with an external spring production device 8000 (such as a spring coiling machine) to transfer the produced springs 9100 to the compression component 2100. The transfer component 2600 can adopt a common design in related technologies, such as a circulating conveyor line. In Figure 2 the embodiment, the direction in which the transfer component 2600 feeds the springs 9100 into the compression component 2100 is opposite to the direction in which the first pushing member 2210 pushes out the springs 9100. In other words, the transfer component 2600 runs clockwise.

[0112] It can be understood that, on the one hand, the center distances required for springs 9100 with different waist diameters (that is, the distances between adjacent springs 9100) are different, and on the other hand, the first pushing member 2210 can only push the springs 9100 in its own movement direction. For example, in Figure 10 and Figure 11 the embodiment, the compression component 2100 is located on one side of the first holding component 1100 in the transverse direction, and the first pushing member 2210 moves in the transverse direction to feed the springs 9100. Therefore, it can only control the position of the springs 9100 in the transverse direction, and the distance between adjacent springs 9100 after feeding may be different from the ideal distance.

[0113] For this reason, in some embodiments, referring to Figure 12 , the spring feeding module includes a calibration component 2500. The calibration component 2500 includes a second pushing member 2510 and a sixth driving member 2520. The second pushing member 2510 is located upstream of the first limiting member 1110 in the longitudinal direction, and the sixth driving member 2520 is used to drive the second pushing member 2510 to move in the longitudinal direction to adjust the position of the springs 9100.

[0114] Correspondingly, in some embodiments, step S300 of the method for manufacturing bagged springs further includes:

[0115] Step S350: The second pushing member 2510 moves in the longitudinal direction towards the first limiting member 1110 to adjust the position of the springs 9100, thereby adjusting the distance between adjacent springs 9100 in the longitudinal direction.

[0116] The first pusher 2210 controls the position of the spring 9100 in the transverse direction, and the second pusher 2510 controls the position of the spring 9100 in the longitudinal direction, so that the spring 9100 is accurately positioned. The second pusher 2510 also has a positioning surface to position the spring 9100. The sixth driver 2520 can drive the second pusher 2510 through a rack and pinion mechanism, thereby improving the positioning accuracy and making the center distance of each spring 9100 meet the set value.

[0117] In some other embodiments, the second pusher 2510 may not be adopted, but the pushing assembly 2200 is driven to move in the longitudinal direction to drive the spring 9100 to adjust its position. For example, in some embodiments, the sixth driver 2520 is connected to the fourth mounting seat 2410, and the sixth driver 2520 drives the fourth mounting seat 2410 to move in the longitudinal direction, so that the compression assembly 2100, the pushing assembly 2200, and the second holding assembly 2300 are adjusted in position in the longitudinal direction, and further the position of the spring 9100 is controlled in the longitudinal direction. However, in such an embodiment, additional designs are required to ensure that the transfer assembly 2600 smoothly transfers the spring 9100 to the compression assembly 2100.

[0118] In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0119] In some alternative embodiments, the functions / operations mentioned in the block diagrams may not occur in the order mentioned in the operation diagrams. For example, depending on the functions / operations involved, two consecutive blocks shown can actually be executed substantially simultaneously or the blocks can sometimes be executed in the reverse order. In addition, the embodiments presented and described in the flowcharts of the present application are provided by way of example for the purpose of providing a more comprehensive understanding of the technology. The disclosed methods are not limited to the operations and logical flows presented herein. Alternative embodiments are foreseeable, in which the order of various operations is changed and the sub-operations described as part of a larger operation are executed independently.

[0120] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A bag spring manufacturing device, characterized in that: include: a spring feeding module, the spring feeding module being used to compress the spring in the vertical direction and push the spring between two layers of fabric that are opposite in the vertical direction; a sewing module, the sewing module being located downstream of the spring feeding module in the longitudinal direction, the sewing module comprising at least one sewing assembly, the sewing assembly comprising a sewing machine and a first driving member, the first driving member being used to drive the sewing machine to move in the transverse direction, the sewing machine being used to continuously sew two layers of the fabric in the longitudinal and transverse directions, so that the fabric forms a plurality of independent fabric pockets arranged in parallel along the longitudinal direction, and each of the springs is encapsulated in the fabric pocket to form a pocketed spring string; A cloth conveying module, which is located downstream of the spring feeding module in the longitudinal direction, and includes a cloth feeding assembly, a first holding assembly and a cloth tensioning assembly. The cloth feeding assembly includes conveying members arranged in pairs in the vertical direction, and the conveying members are used to clamp the cloth and convey it downstream; the first holding assembly includes a first limiting member, and the first limiting member forms a first limiting channel for compressing the springs in the two layers of cloth; the cloth tensioning assembly is used to pull the cloth in the transverse direction to tension the cloth.

2. The bagged spring manufacturing equipment according to claim 1, characterized in that: The first limiting member includes a limiting plate and a second rolling body. The second rolling body is mounted on the limiting plate. The second rolling body is used to contact the surface of the cloth to reduce friction when the cloth is transported.

3. The bagged spring manufacturing equipment according to claim 1, characterized in that: The cloth tensioning assembly includes at least one group of first rolling bodies, and the group of first rolling bodies includes at least two first rolling bodies arranged in cooperation in the vertical direction to jointly clamp the edge of the cloth. The first rolling bodies are used to limit the displacement of the cloth in the lateral direction to tension the cloth.

4. The bagged spring manufacturing equipment according to claim 1 or 3, characterized in that: The cloth has a folded edge on one side in the transverse direction, and the cloth tensioning assembly includes a tensioning rod and at least one set of limiting wheels. The tensioning rod extends from the feeding and folding port of the cloth to the downstream of the sewing machine in the longitudinal direction to support the folded edge. A set of limiting wheels includes at least two limiting wheels arranged in cooperation in the vertical direction. The limiting wheels are used to clamp the folded edge or the tensioning rod, and the limiting wheels are used to limit the deformation or displacement of the tensioning rod in the transverse direction to tension the cloth.

5. The bagged spring manufacturing equipment according to claim 1, characterized in that: The sewing module includes two groups of sewing components, and the two groups of sewing components are respectively used to sew two sides of the cloth.

6. The bagged spring manufacturing equipment according to claim 1 or 5, characterized in that: The position of the sewing machine in the longitudinal direction is adjustable.

7. The bagged spring manufacturing equipment according to claim 1 or 5, characterized in that: The cloth conveying module includes a plurality of first holding components, each of which is spaced apart in the longitudinal direction, and a sewing area for avoiding the sewing machine is formed between adjacent first holding components.

8. The bagged spring manufacturing equipment according to claim 1, characterized in that: The spring loading module includes a compression component and a pushing component. The compression component is used to compress the spring. The pushing component is located on the side of the compression component away from the first retaining component. The pushing component is used to push the spring toward the first limiting channel of the first retaining component.

9. The bagged spring manufacturing equipment according to claim 8, characterized in that: The compression assembly includes a pressing member and a third driving member, the two pressing members are arranged opposite to each other in the vertical direction, the third driving member is used to drive the pressing member to compress the spring, and the pushing assembly includes a first pushing member and a fourth driving member, the fourth driving member is used to drive the first pushing member to push the spring.

10. The bagged spring manufacturing equipment according to claim 9, characterized in that: The first pushing member includes a positioning block, wherein the positioning block is formed with a positioning surface matching the shape of the spring, and the positioning surface is used to contact the spring.

11. The bagged spring manufacturing equipment according to claim 9, characterized in that: The spring feeding module includes a second retaining assembly, the second retaining assembly includes a second limiting member, the second limiting member forms a second limiting channel, one end of the second limiting channel is connected to the compression assembly, and the other end of the second limiting channel extends between the two layers of fabric located in the first limiting channel.

12. The bagged spring manufacturing equipment according to claim 11, characterized in that: The second retaining assembly includes a fifth driving member, which is used to drive the second limiting member to move closer to or away from the first limiting member. The first pushing member pushes the compressed spring into the second limiting channel and, together with the second limiting member, sends the spring between the two layers of fabric located in the first limiting channel. After the second limiting member retracts first, the first pushing member exits the first limiting channel.

13. The bagged spring manufacturing equipment according to claim 9, characterized in that: The spring loading module includes a calibration component, which includes a second pusher and a sixth drive member. The second pusher is located upstream of the first limit member in the longitudinal direction, and the sixth drive member is used to drive the second pusher to move in the longitudinal direction to adjust the position of the spring.

14. A spring bed net production line, characterized in that: The spring bed net production line includes the pocket spring manufacturing equipment according to any one of claims 1 to 13.

15. A method for manufacturing a bagged spring, characterized in that: The bagged spring manufacturing method uses the bagged spring manufacturing equipment according to any one of claims 1 to 13, and the bagged spring manufacturing method includes the following steps: The fabric conveying module conveys the fabric in the longitudinal direction; The spring feeding module obtains and vertically compresses the spring; The spring feeding module pushes the spring into between the two layers of fabric located in the first limiting channel; The sewing machine sews the cloth in the longitudinal and transverse directions to sew the cloth into a cloth bag having a plurality of pockets.

16. The method for manufacturing a bagged spring according to claim 15, wherein: The spring feeding module pushes the spring into between the two layers of fabric located in the first limiting channel, including: The first pushing member moves toward the first limiting member to push the compressed spring into the second limiting channel of the second limiting member; the second limiting member continues to move along with the first pushing member, so that the spring reaches the set position of the first limiting channel under the limitation of the second limiting channel; The first pushing member is stationary, and the second limiting member is away from the first limiting member to transfer the spring to the first limiting channel; The first pushing member is away from the first limiting member.

17. The method for manufacturing a bagged spring according to claim 16, wherein: The spring feeding module pushes the spring into between the two layers of fabric located in the first limiting channel, and further includes: The second pushing member moves toward the first limiting member in the longitudinal direction to adjust the position of the spring, thereby adjusting the distance between adjacent springs in the longitudinal direction.

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