CN220374921U - Bagging equipment for bagged springs and spring string production line - Google Patents

Abstract

The utility model provides a bagging-off spring goes into bagging-off equipment and spring cluster production line, including first sewing module, second sewing module and spring clamp send the module, first sewing module includes first sewing machine, the second sewing module is located the low reaches of first sewing module, the second sewing module includes clamping piece and second sewing machine, the clamping piece forms the dodge groove that extends in horizontal, two paired clamping pieces are vertical upper interval arrangement, the clamping piece can move in order to clamp the cloth, the second sewing machine can be in dodging the regional internal motion that the groove prescribes a limit to, the spring clamp send the module to be located the upper reaches of first sewing module, the spring clamp send the module can carry and compress the spring in horizontal. The spring clamping and conveying module compresses the springs transversely and conveys the springs, the step of flattening the springs before packaging and poking the springs transversely after packaging is omitted, accordingly production efficiency of the bagged springs can be improved, the clamping piece is used for clamping cloth, and the second sewing machine can be used for sewing the cloth conveniently.

Description

Bagging equipment for bagged springs and spring string production line

Technical Field

The application relates to the field of automatic production of bagged springs, in particular to bagged spring bagging equipment and a spring string production line.

Background

The bagged springs are widely applied to products such as mattresses, sofas and the like, and the common mode is that a plurality of bagged springs are connected into a spring string, and then the plurality of spring strings are bonded side by side to form a cushion core. The main stream of spring strings in the related art is manufactured by longitudinally welding non-woven fabrics into a cloth bag, compressing the springs, then sending the compressed springs into the cloth bag, and transversely welding the cloth bag to seal the springs in independent bag chambers to form independent bagged spring strings.

The wrapping material of the pocket spring is limited by a welding process, and generally adopts non-woven fabrics made of polypropylene fiber, and no method is available for using natural fiber cloth such as cotton, hemp, wool, silk and the like. To overcome the above-mentioned drawbacks, a scheme of manufacturing a stitch pocket spring has been proposed in the related art.

In the manufacturing scheme of the suture bagged spring, the spring is generally required to be flattened vertically and then fed between an upper layer of cloth and a lower layer of cloth, the flattened spring is packaged in an independent bag chamber through the longitudinal and transverse sewing cloth, the spring in the bag chamber is required to be turned over in a stirring mode after sewing, and the spring is enabled to be turned to be transverse and rebound, so that the production efficiency of the suture bagged spring is low, the problem that the spring is blocked in the cloth bag and cannot be turned over or is incomplete is easily caused, and the product yield is reduced.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a pocket spring goes into bagging equipment and spring cluster production line, and pocket spring goes into bagging equipment can improve pocket spring's production efficiency.

According to the pocket spring pocket entering equipment provided by the application, the pocket entering equipment comprises a first sewing module, a second sewing module and a spring clamping and conveying module, wherein the first sewing module comprises a first sewing machine, the first sewing machine is used for being arranged at a cloth abutting joint so as to stitch the cloth in the longitudinal direction to form a cloth pocket, the second sewing module is located at the downstream of the first sewing module, the second sewing module comprises a clamping piece and a second sewing machine, the clamping piece forms an avoidance groove extending in the transverse direction, the two clamping pieces in pairs are arranged at intervals in the vertical direction, the clamping piece can move so as to clamp the cloth between the two clamping pieces, the second sewing machine can move in an area defined by the avoidance groove, the second sewing machine is used for being stitched the cloth in the transverse direction to form an independent chamber, the spring clamping and conveying module is located at the upstream of the first sewing module and used for being abutted to the cloth pocket mouth of the cloth pocket, and the spring clamping and conveying module can convey and transversely compress the spring pocket into the cloth pocket.

According to the pocket spring pocket entering equipment provided by the application, the pocket spring pocket entering equipment has at least the following technical effects: the pocket spring pocket feeding equipment uses the first sewing module and the second sewing module to stitch, so that usable materials of cloth are expanded; the spring clamping and conveying module transversely compresses the springs and conveys the springs, so that the springs are conveyed into the cloth bag in a transverse posture with the pressure bearing surface, cloth between two adjacent springs is clamped by the clamping piece, the second sewing machine is enabled to sew along the transverse direction, the steps of flattening the springs before packaging and poking the springs to the transverse direction after packaging are omitted, the springs are prevented from being clamped in the cloth bag in the poking process, and the product quality is improved; the second sewing modules are used for carrying out sewing and pulling the spring strings to convey forwards, and the two groups of second sewing modules are alternately carried out, so that the production efficiency of the bagged springs is improved.

According to some embodiments of the application, the two clamping members of a pair can be moved closer to or farther from each other in the vertical direction to clamp or release the cloth; the clamping piece comprises flanges which extend in the transverse direction, the two flanges are arranged at intervals, and the avoidance groove is formed between the two flanges; when the two clamping pieces are combined to clamp the cloth, the second sewing machine can transversely move in the avoidance groove to stitch the cloth, and when the second sewing machine exits from the avoidance groove, the two clamping pieces are opened to release the cloth.

According to some embodiments of the application, the distance between the outer surfaces of the two flanges is set from wide to narrow in the direction towards the cloth.

According to some embodiments of the application, the cross section of the avoidance groove is arranged from wide to narrow along the direction towards the cloth.

According to some embodiments of the present application, the second sewing module includes a second driving assembly including a second driver respectively connected to the two clamping members in pairs to simultaneously drive the two clamping members to vertically move relative to each other.

According to some embodiments of the present application, the second driving assembly is driven by one of the following means: the second driving assembly comprises a first rotary table, the first rotary table is arranged at the output end of the second driver, and hinge points at two sides of the rotation center of the first rotary table are respectively and rotatably connected with the two clamping pieces through two first connecting rods so that the two clamping pieces move relatively along the second guide rail along with the second sliding blocks; the second driving assembly comprises a second belt wheel and a second driving belt, the two second belt wheels are vertically arranged at intervals, one second belt wheel is installed at the output end of the second driver, the second driving belt is wound between the two second belt wheels, the second driving belt forms a first side edge and a second side edge which extend between the two second belt wheels and synchronously move reversely, and the two clamping pieces are respectively connected with the first side edge and the second side edge, so that the two clamping pieces respectively move along the second guide rail along with the second sliding block.

According to some embodiments of the application, the second sewing module comprises a plurality of the second sewing machines, each of the second sewing machines being arranged in sequence in a longitudinal direction, the second sewing module comprising a plurality of pairs of the clamping members corresponding to the number of the second sewing machines.

According to some embodiments of the present application, the second sewing module includes a third driving assembly, where the third driving assembly is configured to drive the clamping member and the second sewing machine to reciprocate in the longitudinal direction, so that the second sewing machine performs a cloth sewing operation simultaneously when the clamping member clamps and drives the cloth to be conveyed downstream.

According to some embodiments of the present application, the second sewing modules are arranged in two groups and are oppositely arranged along the transverse direction, and the distance between each group of the clamping pieces when being opened up and down is larger than the height of the second sewing machine, when one group of the second sewing modules clamps the cloth and carries out sewing while the other group of the second sewing modules opens the clamping pieces to move backwards across the previous group of the second sewing modules, so that the two groups of the second sewing modules alternately clamp and pull the cloth to carry out sewing.

According to some embodiments of the present application, the third driving assembly includes a third driver, a third pulley and a third belt, two of the third pulleys are arranged at intervals in the longitudinal direction, one of the third pulleys is mounted at an output end of the third driver, the third belt is wound between the two third pulleys, and the clamping member and the second sewing machine are connected with the third belt.

According to some embodiments of the present application, the second sewing module includes a plurality of the second sewing machines and a corresponding plurality of pairs of the clamping members, each of the second sewing machines and the corresponding clamping members being sequentially arranged in a longitudinal direction.

According to some embodiments of the present application, the spring clamping and conveying module comprises conveying members, two conveying members are arranged oppositely in the transverse direction, a conveying channel for conveying the springs is formed between the two conveying members, the conveying channel comprises a compression section, the distance between the two conveying members in the compression section is set from wide to narrow along the conveying direction of the springs, the compression section is used for compressing the springs while conveying, the conveying channel comprises a retaining section, the retaining section is located at the downstream of the compression section, in the retaining section, the two conveying members are parallel to each other, and the outlet end of the retaining section stretches into the mouth of the cloth bag.

According to the spring string production line that this application provided, including the pocket spring bagging apparatus that this application provided.

The spring string production line that this application provided uses the pocket spring of this application to go into bag equipment, consequently correspondingly has the beneficial effect that pocket spring goes into the bag equipment provided, and is not repeated here.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic diagram of a spring string production line according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a second sewing module according to an embodiment of the present application when clamping and sewing a fabric;

FIG. 3 is a schematic structural view of a second sewing module according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a second sewing module according to an embodiment of the present application;

fig. 5 is a schematic structural view of a second sewing module according to an embodiment of the present application.

FIG. 6 is a schematic structural view of a pocketed spring bagging apparatus according to an embodiment of the present application;

FIG. 7 is a schematic structural view of a pocketed spring bagging apparatus according to an embodiment of the present application;

FIG. 8 is a schematic structural view of a pocketed spring bagging apparatus according to an embodiment of the present application;

reference numerals:

first sewing module 1000, first sewing machine 1100,

Second sewing module 2000, second sewing machine 2100, clamping piece 2200, flange 2210, avoidance groove 2300, first pulley 2410, first belt 2420, first mount 2510, first rail 2520, second driver 2610, first reel 2620, first link 2630, second pulley 2640, second belt 2650, second mount 2710, second rail 2720, second slider 2730, adapter block 2740, adapter rod 2750, third driver 2810, third pulley 2820, third belt 2830, third mount 2910, third rail 2920,

Cloth folding module 3000,

A conveying member 4100, a conveying passage 4200, a compression section 4210, a holding section 4220,

Spring coiling machine 7000, spring transfer device 8000,

Cloth 9100, springs 9200.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that references to orientation descriptions such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., are based on the orientation or positional relationship shown in the drawings, are for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, the meaning of a number is one or more, the meaning of a number is two or more, greater than, less than, exceeding, etc. are understood to not include the present number, and the meaning of a number above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed 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 application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.

The spring string production line is used for manufacturing the bagged spring string, and the spring string production line sends the springs into the cloth bags through the bagged spring bagging equipment and encapsulates the springs. In the related art for manufacturing a string of springs by sewing, the springs are generally flattened in a vertical direction, and then the flattened springs are fed between two layers of cloth while maintaining a flattened state, and the cloth is sewn in a horizontal and vertical direction by a sewing machine to encapsulate the springs into pockets. After the packaging is completed, the spring is turned into a transverse direction and rebounded through the material stirring structure.

Because the spring is required to be flattened and then rebounded through special steps in the manufacturing process, the spring string is manufactured in more procedures, and the production efficiency of the suture bagging spring is low. On the other hand, when the spring is stirred, the problem that the spring is clamped in the cloth bag and cannot be overturned or the overturning is incomplete easily occurs, so that the yield of the product is reduced.

The pocket spring bagging apparatus and the spring string production line provided by the present application are described below with reference to fig. 1 and 2.

Referring to fig. 1, a spring string production line provided herein includes a pocket spring bagging apparatus provided herein.

The pocket spring pocket feeding apparatus includes a first sewing module 1000, a second sewing module 2000, and a spring pinch module. The first sewing module 1000 includes a first sewing machine 1100, the first sewing machine 1100 is configured to be disposed at a junction of the cloth 9100 to stitch the cloth 9100 in a longitudinal direction to form a cloth bag, the second sewing module 2000 is disposed downstream of the first sewing module 1000, the second sewing module 2000 includes a second sewing machine 2100, the second sewing machine 2100 is configured to stitch the cloth 9100 in a lateral direction to form an independent pocket, a pinch module is disposed upstream of the first sewing module 1000, the pinch module is configured to be in junction with a mouth of the cloth bag, and the pinch module is configured to convey and compress the spring 9200 in the lateral direction to feed the spring 9200 into the cloth bag.

Referring to fig. 2 in combination, the second sewing module 2000 further includes a clamping member 2200, the clamping member 2200 forming a dodging groove 2300 extending in a lateral direction, the pair of two clamping members 2200 being spaced apart in a vertical direction, the clamping member 2200 being movable to clamp the cloth 9100 located between the two clamping members 2200, the second sewing machine 2100 being movable within an area defined by the dodging groove 2300.

It is understood that, in the present application, the longitudinal direction refers to the conveying direction of the cloth 9100, that is, the length direction of the cloth 9100 and the spring string, the transverse direction is perpendicular to the longitudinal direction, the transverse direction refers to the width direction of the cloth, and the direction in which the compression surface of the spring 9200 in the spring string faces, and the vertical direction refers to the direction perpendicular to the transverse direction and the longitudinal direction.

In a conventional layout of a spring string production line, the vertical direction corresponds to the vertical direction of the absolute coordinate system, i.e. the Z-direction, but it is not excluded that among other possible layouts the longitudinal, transverse and vertical directions correspond to the absolute coordinate system in other ways.

On the one hand, the pocket spring pocket feeding equipment uses the first sewing module 1000 and the second sewing module 2000 to stitch, thereby expanding the available materials of the cloth 9100; on the other hand, the spring clamping and conveying module compresses the springs 9200 in the transverse direction and conveys the springs 9200, so that the springs 9200 are conveyed into the cloth bags in the transverse direction of the pressure bearing surface and are packaged, the step of flattening the springs 9200 before packaging and poking the springs 9200 to the transverse direction after packaging is omitted, and therefore the production efficiency of the bagged springs can be improved. The spring string production line has the beneficial effects provided by the pocket spring pocket-filling equipment correspondingly.

It will be appreciated that the second sewing module 2000 further includes a first drive assembly including a first driver for driving the second sewing machine 2100 to reciprocate in a lateral direction to effect lateral sewing. For example, referring to fig. 3, the first driving assembly includes a first pulley 2410 and a first belt 2420, the two first pulleys 2410 are arranged in a lateral direction, the first belt 2420 is wound on the first pulley 2410, the second sewing machine 2100 is connected to the first belt 2420, and a first driver (not shown) is connected to the first pulley 2410 and drives the second sewing machine 2100 to move.

The first sewing module 1000 may be an embodiment in which two pieces of cloth 9100 are sewn to form a cloth bag, or an embodiment in which one piece of cloth 9100 folded in half is sewn to form a cloth bag. For the latter embodiment, referring to fig. 1, the pocket spring pocket feeding apparatus may include a cloth folding module 3000, the cloth folding module 3000 being located upstream of the first sewing module 1000, the cloth 9100 being fed into the first sewing module 1000 through the cloth folding module 3000, the cloth folding module 3000 folding the cloth 9100 in half and attaching both sides so that the first sewing module 1000 performs sewing.

In the related art, since the spring 9200 is flattened, the space between the two cloth layers 9100 in the vertical direction is small, and the second sewing machine 2100 may perform sewing without the clamp 2200 clamping the cloth 9100, but in this application, since the spring 9200 is fed in a lateral direction, the spring 9200 may spread the two cloth layers 9100. This application is through addding clamping piece 2200 and cliies cloth 9100, can reduce the distance that is located between two-layer cloth 9100 that dodges the region that groove 2300 is located to form the interval that is suitable for the sewing up on dodging cloth 9100, so that second sewing machine 2100 sews up cloth 9100 in this interval, has guaranteed the realizability of pocket spring income bag equipment.

Here, the "pinching" does not necessarily require that the clamp 2200 completely clamp the cloth 9100 so that the two layers of cloth 9100 vertically are in contact, as long as the clamp 2200 reduces the interval between the two layers of cloth to within the interval at which the second sewing machine 2100 can perform sewing. The complete clamping of the cloth 9100 has an advantage in that it can ensure that the cloth 9100 and the clamping member 2200 remain relatively stationary during sewing, improving sewing quality. The second sewing machine 2100 performs sewing while clamping, and the clamp 2200 releases the cloth 9100 after sewing is completed to avoid conveyance of the cloth 9100. The clamp 2200 may be switched between clamping and releasing in different ways.

For example, in some embodiments, the pair of two clamp members 2200 reciprocate in a lateral direction to clamp the cloth 9100 or release the cloth 9100 offset from the cloth 9100. Or in other embodiments, the two clamping members 2200 of a pair can be vertically moved closer to or farther from each other to clamp or release the cloth 9100. When the two clamping members 2200 are combined to clamp the cloth 9100, the second sewing machine 2100 can laterally move in the escape groove 2300 to stitch the cloth 9100, and when the second sewing machine 2100 exits the escape groove 2300, the two clamping members 2200 are opened to release the cloth 9100. The second sewing module 2000 may include a second driving assembly including a second driver 2610, the second driver 2610 driving the clamping member 2200 to move.

Since the cloth 9100 has been sewn longitudinally into a cloth bag in the first sewing module 1000, that is, the two layers of cloth 9100 in the vertical direction have been substantially connected together, it is necessary to make the pair of clamping members 2200 clamp the cloth 9100 as symmetrically as possible at the time of performing the transverse sewing so as to avoid the occurrence of wrinkles. To accomplish the above, in some embodiments, the second driver 2610 is connected to the pair of two clamping members 2200, respectively, and the second driver 2610 is capable of driving the two clamping members 2200 to vertically move relative to each other at the same time. The second driver 2610 drives both clamping members 2200 simultaneously by means of a mechanical connection, thereby ensuring synchronous movement of the clamping members 2200.

Fig. 3, 4 and 5 illustrate exemplary mechanical coupling of two second drivers 2610 to the clamp 2200.

Referring to fig. 3 and 4, in some embodiments, the second driving assembly includes a first rotating disc 2620, the first rotating disc 2620 is mounted at an output end of the second driver 2610, and hinge points symmetrically disposed at both sides of a rotation center of the first rotating disc 2620 are rotatably connected to the two clamping members 2200 through two first links 2630, respectively. That is, a crank block mechanism is formed between the first rotating disk 2620, the first link 2630, and the clamping member 2200, thereby converting the rotation of the first rotating disk 2620 into the vertical movement of the clamping member 2200.

The two clamping members 2200 may move along the second guide rail together with the second slider, respectively, so that the movement is smoother. Specifically, the second sewing module 2000 further includes a second mounting base 2710, a second rail 2720, and a second slider 2730, the second rail 2720 being mounted on the second mounting base 2710, the second rail 2720 extending in a vertical direction, two clamping members 2200 being respectively mounted on the second rail 2720 through two second sliders 2730, and two first links 2630 being respectively connected to the two second sliders 2730. Since the connection positions of the two first links 2630 and the first rotating disk 2620 are symmetrical to each other, when the first rotating disk 2620 rotates, the speeds of the two connection positions are the same and opposite, thereby achieving the synchronous movement of the clamping member 2200. The second sewing module 2000 further includes a first mounting base 2510 and a first guide rail 2520, the first guide rail 2520 extends laterally, the first mounting base 2510 is mounted on the second mounting base 2710, the first guide rail 2520 is mounted on the first mounting base 2510, and the second sewing machine 2100 is mounted on the first guide rail 2520 through a first slider. In the embodiment of fig. 3, the first pulley 2410 is also mounted on the first mount 2510.

The two clamping members 2200 may share one second guide rail 2720, or may use different second guide rails 2720, so that in order to stagger the motion trajectories of the two first connecting rods 2630, the second sewing module 2000 further includes a switching block 2740 and a switching rod 2750, the switching block 2740 is also installed on the second guide rail 2720, the switching rod 2750 is connected between the switching block 2740 and the corresponding second sliding block 2730, and the first connecting rod 2630 is indirectly connected with the second sliding block 2730 through the switching block 2740, so that the layout position of the first connecting rod 2630 is changed, and an effect of avoiding interference is achieved.

Of course, other manners commonly used in the related art such as guide sleeves and guide posts may be used to guide the movement of the clamping member 2200, which will not be described herein.

Referring to fig. 5, in further embodiments, the second driving assembly includes a second pulley 2640 and a second transmission belt 2650, the two second pulleys 2640 are vertically spaced apart, one of the second pulleys 2640 is mounted at an output end of the second driver 2610, the second transmission belt 2650 is wound between the two second pulleys 2640, the second transmission belt 2650 forms a first side and a second side extending between the two second pulleys 2640 and moving in opposite directions in synchronization, and the two clamping members 2200 are connected to the first side and the second side, respectively.

Specifically, the first side is connected to one of the second sliders 2730, and the second side is connected to the adapter 2740, which in turn is connected to the other second slider 2730.

Of course, the second sewing module 2000 can also drive the two clamping members 2200 in a synchronized manner by other possible means. The movement of the clamping member 2200 is not limited to the movement, and for example, the clamping member 2200 may clamp or release the cloth 9100 by swinging.

Continuing with the description of the clamp 2200, referring to fig. 2 and 3, the clamp 2200 includes a flange 2210, the flange 2210 extending in a lateral direction, the flanges 2210 being spaced apart to form the relief groove 2300 between the flanges 2210.

In fig. 2, the distance between the outer surfaces of the two flanges 2210 is set from wide to narrow along the direction facing the cloth 9100, and correspondingly, the cross section of the avoiding groove 2300 is set from wide to narrow along the direction facing the cloth 9100 (for example, the hourglass shape of fig. 2), so that the design reduces the size of the cloth 9100 pressed by the clamping member 2200, avoids the spring 9200 in the cloth bag from deviating from the original position when the clamping member 2200 pushes the cloth bag during transverse stitching, and simultaneously enlarges the accommodating space of the avoiding groove 2300 from wide to narrow, and avoids the needle of the second sewing machine 2100 from interfering with the clamping member 2200.

Referring to fig. 6, 7 and 8, one or more second sewing machines 2100 may be provided in the second sewing module 2000, and in the case of having a plurality of second sewing machines 2100, the respective second sewing machines 2100 are sequentially arranged in the longitudinal direction so as to perform lateral sewing at different positions, respectively. Correspondingly, the second sewing module 2000 further includes a plurality of pairs of clamping members 2200 corresponding to the number of the second sewing machines 2100.

In some embodiments, the second sewing module 2000 includes a third driving assembly for driving the clamping member 2200 and the second sewing machine 2100 to reciprocate in the longitudinal direction so that the clamping member 2200 clamps the cloth 9100 while driving the cloth 9100 to be conveyed downstream. That is, the second sewing module 2000 integrates sewing and conveying functions, contributing to simplification of the construction of the pocket spring pocket-feeding apparatus.

It will be appreciated that suturing and delivery may be performed in parallel or sequentially. In the parallel scheme, the clamping member 2200 clamps the cloth 9100 and drives the cloth 9100 to be conveyed downstream, and the second sewing machine 2100 simultaneously moves downstream along the clamping member 2200 in the longitudinal direction and moves in the transverse direction to perform the cloth sewing action. After the clamp 2200 moves to the end of the stroke, the cloth 9100 is released and the clamp returns to the beginning of the stroke for the next stitch and delivery.

To further improve the efficiency of the cloth 9100 conveyance, two or more sets of second sewing modules 2000 may be provided, each set of second sewing modules 2000 alternately conveying the cloth 9100 such that the cloth 9100 is continuously conveyed downstream.

The sets of second sewing modules 2000 may be arranged in different ways.

Taking two sets of second sewing modules 2000 as an example, in the embodiment of fig. 7 and 8, the two sets of second sewing modules 2000 are disposed opposite to each other in the lateral direction, and the strokes of the clamping members 2200 of the two sets of second sewing modules 2000 are at least partially overlapped, so that the second sewing modules 2000 need to be set such that the clamping members 2200 of one set allow the clamping members 2200 of the other set to pass over the second sewing machine 2100 in the longitudinal direction when the cloth 9100 is released, for example, it may be set such that the distance between the upper and lower opening of each set of clamping members 2200 is greater than the height of the second sewing machine 2100. When one of the second sewing modules 2000 clamps the cloth 9100 while being sewn while being conveyed, the other second sewing module 2000 opens the clamp 2200 (i.e., releases the cloth 9100) to move back across the previous second sewing module, so that the two second sewing modules alternately clamp and pull the cloth 9100 for sewing. In order to avoid interference, the third driving assemblies of the two sets of second sewing modules 2000 are respectively disposed at both sides of the conveying path of the cloth 9100 in the lateral direction.

Or in another embodiment, two sets of second sewing modules 2000 are sequentially arranged in the longitudinal direction, in which the strokes of the clamping members 2200 of the two sets of second sewing modules 2000 are not overlapped, dividing the portion to be sewn on the cloth 9100 into a plurality of first and second sections alternately, and the two sets of second sewing modules 2000 are used to stitch the first and second sections, respectively. When the first group of second sewing modules 2000 clamp the first section of the cloth 9100 while being transported and sewn, the second group of second sewing modules 2000 release the second section of the cloth 9100 and move back; when the second group of second sewing modules 2000 clamp the second section of the cloth 9100 while being transported and sewn, the first group of second sewing modules 2000 release the first section of the cloth 9100 and move back, so that the two groups of second sewing modules alternately clamp and pull the cloth 9100 for sewing.

The third driving assembly may move the clamping member 2200 by different means, for example, referring to fig. 4, the third driving assembly includes a third driver 2810, a third pulley 2820 and a third driving belt 2830, the two third pulleys 2820 are spaced apart in a longitudinal direction, one of the third pulleys 2820 is installed at an output end of the third driver 2810, the third driving belt 2830 is wound between the two third pulleys 2820, and the clamping member 2200 and the second sewing machine 2100 are connected with the third driving belt 2830.

Specifically, the second sewing module 2000 may include a third mount 2910 and a third rail 2920, the third rail 2920 being mounted on the third mount 2910, the third rail 2920 extending in a longitudinal direction, the second mount 2710 being mounted on the third rail 2920, the third belt 2830 indirectly connecting the clamp 2200 and the second sewing machine 2100 through the second mount 2710.

In addition, a linear motor may be used as the third driver 2810, the third driver 2810 is mounted on the third mount 2910, and the second mount 2710 is directly mounted on the mover of the linear motor, so that the third driver 2810 has both functions of carrying and driving.

Referring to fig. 6 to 8, in some embodiments, the spring clamping module includes a conveying member 4100, two sets of conveying members 4100 are disposed opposite each other in a lateral direction, a conveying passage 4200 for conveying the spring 9200 is formed between the two sets of conveying members 4100, the conveying passage 4200 includes a compression section 4210, and in the compression section 4210, a pitch of the two sets of conveying members 4100 is set from wide to narrow in a conveying direction of the spring 9200, and the compression section 4210 is used to compress the spring 9200 while conveying.

The transport channel 4200 further includes a holding section 4220, the holding section 4220 being located downstream of the compression section 4210, in the holding section 4220, two sets of transport members 4100 being parallel to each other, the outlet end of the holding section 4220 extending into the mouth of the cloth bag. That is, the first sewing machine 1100 is positioned upstream of the outlet end of the holding section 4220, the first sewing machine 1100 is longitudinally sewn to form a cloth bag, and then the spring 9200 is released from the conveying path 4200.

The specific structure of the spring clamping module can refer to the related art in the field, and will not be described herein.

Returning to FIG. 1, in some embodiments, the spring string production line further includes a spring coiler 7000 for coiling the wire into springs 9200 and a spring transfer device 8000 for receiving springs 9200 from the spring coiler and transporting to the spring pinch module.

The specific structure of spring coiler 7000 and spring transfer 8000 may be referred to in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A pocketed spring bagging apparatus, comprising:

a first sewing module including a first sewing machine for being disposed at a cloth-abutting place to stitch the cloth in a longitudinal direction to form a cloth bag;

a second sewing module downstream of the first sewing module, the second sewing module including a clamp forming a relief groove extending in a lateral direction, a pair of two of the clamp being vertically spaced apart, the clamp being movable to clamp the cloth between the two clamps, the second sewing module being movable within an area defined by the relief groove, and a second sewing machine for sewing the cloth in the lateral direction to form an independent pocket;

and the spring clamping and conveying module is positioned at the upstream of the second sewing module and is used for extending into the mouth of the cloth bag, and the spring clamping and conveying module can convey and transversely compress the spring so as to convey the spring into the cloth bag.

2. A pocket spring bagging apparatus as claimed in claim 1, wherein pairs of two said clamps are movable toward and away from each other in said vertical direction to clamp or release said cloth; the clamping piece comprises flanges which extend in the transverse direction, the two flanges are arranged at intervals, and the avoidance groove is formed between the two flanges; when the two clamping pieces are combined to clamp the cloth, the second sewing machine can transversely move in the avoidance groove to stitch the cloth, and when the second sewing machine exits from the avoidance groove, the two clamping pieces are opened to release the cloth.

3. The pocket spring bagging apparatus of claim 2, wherein the distance of the outer surfaces of the two flanges is set from wide to narrow in a direction toward the cloth.

4. The pocket spring bagging apparatus of claim 2, wherein the cross section of the relief groove is disposed from wide to narrow in a direction toward the cloth.

5. The pocket spring bagging apparatus of claim 2, wherein the second sewing module includes a second drive assembly including a second drive respectively connected to pairs of two of the clamps to simultaneously drive the two clamps for vertical relative movement.

6. The pocket spring bagging apparatus of claim 5, wherein the second drive assembly is driven by one of:

the second driving assembly comprises a first rotary table, the first rotary table is arranged at the output end of the second driver, and hinge points at two sides of the rotation center of the first rotary table are respectively and rotatably connected with the two clamping pieces through two first connecting rods so that the two clamping pieces move relatively along the second guide rail along with the second sliding blocks;

the second driving assembly comprises a second belt wheel and a second driving belt, the two second belt wheels are vertically arranged at intervals, one second belt wheel is installed at the output end of the second driver, the second driving belt is wound between the two second belt wheels, the second driving belt forms a first side edge and a second side edge which extend between the two second belt wheels and synchronously move reversely, and the two clamping pieces are respectively connected with the first side edge and the second side edge, so that the two clamping pieces respectively move along the second guide rail along with the second sliding block.

7. The pocket spring bagging apparatus of claim 1, wherein the second sewing module includes a third driving assembly for driving the clamping member and the second sewing machine to reciprocate in the longitudinal direction so that the second sewing machine simultaneously performs a cloth sewing action when the clamping member clamps and drives the cloth to be conveyed downstream.

8. The pocket spring pocket-filling apparatus as defined in claim 7, wherein said second sewing modules are arranged in two groups and are disposed opposite each other in a lateral direction, and a distance between each of said two groups of said clamping members when opened up and down is larger than a height of said second sewing machine, and when one of said two groups of said second sewing modules clamps said cloth while being transported and sewn, the other group of said second sewing modules moves back across the previous group of said second sewing modules, so that said two groups of said second sewing modules alternately clamp and pull said cloth to be sewn.

9. The pocket spring bagging apparatus of claim 7, wherein the third drive assembly includes a third driver, a third pulley and a third belt, two of the third pulleys being spaced apart in the longitudinal direction, one of the third pulleys being mounted at an output end of the third driver, the third belt being wound between the two third pulleys, the clamp and the second sewing machine being connected to the third belt.

10. The pocket spring bagging apparatus of claim 1, wherein said second sewing module includes a plurality of said second sewing machines and a corresponding plurality of said pairs of clamping members, each of said second sewing machines and corresponding said clamping members being disposed in sequence in a longitudinal direction.

11. A pocket spring bagging apparatus as claimed in claim 1, wherein the spring clamping and conveying module comprises conveying members, two sets of conveying members being arranged opposite each other in a transverse direction, a conveying passage for conveying the springs being formed between the two sets of conveying members, the conveying passage comprising a compression section in which a distance between the two sets of conveying members is set from wide to narrow in a conveying direction of the springs, the compression section being for compressing the springs while conveying, the conveying passage comprising a holding section downstream of the compression section, in which the two sets of conveying members are parallel to each other, an outlet end of the holding section extending into a mouth of the cloth bag.

12. A spring string production line, characterized in that the spring string production line comprises a pocket spring bagging apparatus as claimed in any one of claims 1 to 11.