Transfer device and spring machine and method and apparatus for producing pocketed spring strings

Abstract

The application discloses a transfer device, a spring machine, and a production method and production equipment for a bagged spring string. The transfer device comprises a first conveying assembly, a second conveying assembly, and a pushing structure. The first conveying assembly comprises a first conveying piece and a plurality of first adsorption seats. The first conveying piece circulates along a closed loop track. The first adsorption seats are connected with the first conveying piece and are used for adsorbing springs. The second conveying assembly comprises a second conveying piece and a plurality of second adsorption seats. The second conveying piece circulates along a closed loop track. The second adsorption seats are connected with the second conveying piece and are used for adsorbing springs. The pushing structure is used for pushing the springs on the second adsorption seats to the first adsorption seats, thereby increasing the number of springs in the first conveying assembly. The interval between two adjacent first adsorption seats is A, and the interval between two adjacent second adsorption seats is B. B = N*A, and N is a positive integer. The application can be widely applied to the technical field of bagged spring string production and manufacturing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pocketed spring string production and manufacturing, in particular to a transfer device, a spring machine, and a pocketed spring string production method and production equipment. BACKGROUND

[0002] The internal cushion core of an independent pocketed spring bed net is formed by parallel bonding of multiple independent pocketed spring strings. The production equipment of the independent pocketed spring string usually first welds non-woven fabric longitudinally into a cloth bag, then sends the compressed spring into the cloth bag, and encapsulates the spring in the independent pocket by transversely welding the cloth bag, so that multiple continuous independent pocketed springs form a pocketed spring string.

[0003] The spring machine winds the steel wire into a spring and transfers the spring through the transfer device. The steel wire needs to be heated before winding to improve the mechanical properties so that the winding assembly can be wound. Therefore, the temperature of the manufactured spring is also relatively high. To prevent the high-temperature spring from damaging the cloth bag, some manufacturers design a fan to cool the spring, which undoubtedly increases the cost and energy consumption of the equipment, or lengthens the transfer device to increase the conveying time of the spring, thereby increasing the air cooling time of the spring. However, this will result in an increase in the floor space occupied by the transfer device. If the production of springs is to be increased, multiple spring machines of the above type need to be set up in the factory building, which undoubtedly requires the expansion of the factory building and will increase the production cost. SUMMARY

[0004] To solve at least one of the above technical problems, the present application provides a transfer device, a spring machine, and a pocketed spring string production method and production equipment, and the technical solutions adopted are as follows.

[0005] The transfer device provided by the present application comprises a first conveying assembly, a second conveying assembly, and a pushing structure. The first conveying assembly comprises a first conveying member and a plurality of first adsorption seats. The first conveying member circulates along a closed loop track. The first adsorption seats are connected to the first conveying member and are used to adsorb springs. The first adsorption seats are equally spaced along the conveying direction of the first conveying member. The second conveying assembly comprises a second conveying member and a plurality of second adsorption seats. The second conveying member circulates along a closed loop track. The second adsorption seats are connected to the second conveying member and are used to adsorb springs. The second adsorption seats are equally spaced along the conveying direction of the second conveying member. The pushing structure is used to push the springs on the second adsorption seats to the first adsorption seats, so that the springs conveyed by the second conveying assembly converge to the first conveying assembly. The distance between two adjacent first adsorption seats is A, and the distance between two adjacent second adsorption seats carrying springs is B, which satisfies B=N*A, where N is a positive integer.

[0006] In some embodiments of the present application, the first conveying member and the second conveying member have a first flat section in parallel along a conveying direction, the pushing structure is arranged on the first flat section of the second conveying member, the pushing structure is arranged obliquely relative to the first flat section, and the upstream end of the pushing structure is away from the first conveying member, and the downstream end of the pushing structure is close to the first conveying member.

[0007] In some embodiments of the present application, the pushing structure comprises a conveying member that circulates along a closed-loop track, the side surface of the conveying member is used to push the spring, and the conveying member comprises one of a conveying belt, a conveying chain, and a conveying chain plate.

[0008] In some embodiments of the present application, the pushing structure comprises a pushing driver and a pushing member, the pushing member is connected to the pushing driver, and under the driving of the pushing driver, the pushing member pushes the spring on the second adsorption seat.

[0009] In some embodiments of the present application, at most one of the two adjacent second adsorption seats carries a spring, or each second adsorption seat carries a spring.

[0010] In some embodiments of the present application, after the convergence, the first conveying assembly has a first adsorption seat that is empty, or after the convergence, each first adsorption seat carries a spring.

[0011] In some embodiments of the present application, the transfer device comprises an inwardly curved guide structure, and the first conveying member is bent inwardly guided by the guide structure and / or the second conveying member is bent inwardly guided by the guide structure.

[0012] In some embodiments of the present application, the second conveying assembly is provided in two, and the two second conveying assemblies are respectively configured with the pushing structure, one of the second conveying assemblies pushes the spring to the first adsorption seat from one side of the first conveying assembly through the pushing structure, and the other of the second conveying assemblies pushes the spring to the first adsorption seat from the other side of the first conveying assembly through the pushing structure.

[0013] The spring machine provided by the present application comprises a spring winding assembly and a transfer device, wherein the first conveying assembly and the second conveying assembly are respectively configured with the spring winding assembly.

[0014] In some embodiments of the present application, the spring winding assembly comprises a single-wire machine head or a double-wire machine head, and a plurality of rotatable wire racks are used to provide the spring machine with steel wires.

[0015] The spring machine comprises a spring winding assembly and a transfer device, wherein two second conveying assemblies are respectively arranged with the spring winding assembly.

[0016] In some embodiments of the present application, the spring winding assembly comprises a single-wire machine head or a double-wire machine head, and the spring machine is provided with steel wires through a plurality of rotatable wire racks.

[0017] The production equipment for the pocketed spring string comprises a spring machine, a spring compression conveying assembly and a welding assembly, the springs in the first conveying assembly are transferred to the spring compression conveying assembly, the spring compression conveying assembly is used to convey the compressed springs to cloth bags, and the welding assembly is used to weld the cloth bags into pocketed spring strings.

[0018] The production method for the pocketed spring string adopts the production equipment as described above to manufacture the pocketed spring string, when the first conveying assembly and the second conveying assembly convey the springs, the second adsorption seat is aligned with one of the first adsorption seats in the first conveying assembly, and the pushing structure pushes the spring on the second adsorption seat to the first adsorption seat.

[0019] The embodiments of the present application have at least the following beneficial effects: the spring machine is respectively arranged with the first conveying assembly and the second conveying assembly, the spring winding assembly is used to wind the springs, the pushing structure is used to push the springs in the second conveying assembly to the first conveying assembly, the number of the springs in the first conveying assembly is increased, and the production efficiency is improved. The present application can be widely applied to the technical field of pocketed spring string production and manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0020] The aspects and advantages described and / or added by the embodiments of the present application will become apparent and easy to understand in combination with the following drawings. It should be noted that the embodiments embodied in the following drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0021] Figure 1 It is a structural diagram of the production equipment for the pocketed spring string.

[0022] Figure 2 It is a structural diagram of the transfer device, and the first conveying assembly and the second conveying assembly are respectively shown as one.

[0023] Figure 3 It is Figure 2 It is a structural diagram of the transfer device at the first straight section, and the first conveying assembly and the second conveying assembly are respectively arranged with the spring winding assembly.

[0024] Figure 4As a structural diagram of the transfer device at the first straight section, it is shown that the second conveying assembly is two, and both of the conveying assemblies are configured with the coil spring assembly, and the first conveying assembly is not configured with the coil spring assembly.

[0025] Figure 5 As a structural diagram of the spring machine, it is shown that the first conveying assembly and the second conveying assembly are one respectively, and the conveying path of the first conveying assembly is E-shaped.

[0026] Figure 6 As a structural diagram of the production equipment.

[0027] Reference signs:

[0028] 1100, first conveying assembly; 1101, first conveying piece; 1102, first adsorption seat;

[0029] 1200, second conveying assembly; 1201, second conveying piece; 1202, second adsorption seat;

[0030] 1300, pushing structure;

[0031] 1400, guiding structure;

[0032] 2000, coil spring assembly;

[0033] 3000, spring compression conveying assembly;

[0034] 4100, longitudinal welding assembly;

[0035] 4200, transverse welding assembly;

[0036] 5000, wire holder. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described below in conjunction with Figures 1 to 6 The embodiments of the present application are described below in conjunction with

[0038] In the description of the present application, it needs to be understood that if the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the features defined as "first" and "second" can be explicitly or implicitly included one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0039] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] The present application relates to a production equipment of pocketed spring string, the production equipment comprises a spring machine, a spring compression conveying assembly 3000 and a welding assembly, the springs made by the spring machine are transferred to the spring compression conveying assembly 3000, the spring compression conveying assembly 3000 is used for conveying the compressed springs to cloth bags, and the welding assembly is used for welding the cloth bags to make pocketed spring strings.

[0041] Specifically, the welding assembly comprises a longitudinal welding assembly 4100 and a transverse welding assembly 4200, the longitudinal welding assembly 4100 is used for sealing the edges of the non-woven fabric in the longitudinal direction, and the welding forms cloth bags, after the springs enter the cloth bags, the transverse welding assembly 4200 is used for transversely welding the cloth bags to separate the springs in the cloth bags, and the pocketed spring strings are formed.

[0042] Further, in the conveying direction of the pocketed spring string, the transverse welding assembly 4200 can swing to convey the pocketed spring string welded transversely forward.

[0043] It needs to be explained that the longitudinal direction refers to the length direction of the non-woven fabric, and the transverse direction refers to the direction perpendicular to the length of the non-woven fabric on the surface of the non-woven fabric.

[0044] As an embodiment, the production equipment comprises a heat treatment device, which is used for heating the steel wire before the steel wire enters the spring machine, so as to improve the mechanical properties of the steel wire.

[0045] As an implementation, the production equipment comprises a wire rack 5000, the wire rack 5000 is rotatable, and the wire rack 5000 provides the spring machine with steel wires.

[0046] The present application relates to a spring machine, the spring machine comprises a spring winding assembly 2000 and a transfer device, the spring winding assembly 2000 winds steel wires into springs and outputs to the transfer device, and the transfer device transfers and conveys the springs to a spring compression conveying assembly 3000.

[0047] Further, at least two spring winding assemblies 2000 are arranged in the spring machine to form a multi-head structure, thereby increasing the production quantity of springs and improving the production efficiency.

[0048] In some examples, the spring winding assembly 2000 comprises a single-wire head for connecting thin steel wires. In some examples, the spring winding assembly 2000 comprises a double-wire head for connecting a thin steel wire and a thick steel wire. It can be understood that the spring machine comprises at least one of the spring winding assembly 2000 with the single-wire head and the spring winding assembly 2000 with the double-wire head to meet the production requirements of springs of different specifications, and the production equipment provides the spring machine with steel wires through a plurality of rotatable wire racks 5000.

[0049] It should be noted that the so-called "thin steel wire" and "thick steel wire" are relative thicknesses between steel wires of different diameters, and do not necessarily refer to specific sizes.

[0050] The production equipment of the pocketed spring string and other components and operations of the spring machine have been recorded in the related art for those skilled in the art, and will not be described in detail here. The structure of the transfer device will be introduced below.

[0051] The present application relates to a transfer device, the transfer device comprises a first conveying assembly 1100 and a second conveying assembly 1200, the first conveying assembly 1100 and the second conveying assembly 1200 are respectively used for conveying springs made by the spring winding assembly 2000, and the springs in the second conveying assembly 1200 can be merged into the first conveying assembly 1100, thereby increasing the number of springs conveyed by the first conveying assembly 1100. Further, the springs in the first conveying assembly 1100 are transferred to the spring compression conveying assembly 3000 to complete subsequent spring packaging. In order to merge the springs into the first conveying assembly 1100, the transfer device is further designed to comprise a pushing structure 1300, the pushing structure 1300 is used for pushing the springs conveyed on the second conveying assembly 1200 into the first conveying assembly 1100.

[0052] The first conveying assembly 1100 comprises a first conveying member 1101 and a plurality of first adsorption seats 1102. The first conveying member 1101 is configured to circulate along a closed loop track. The first adsorption seats 1102 are connected to the first conveying member 1101. The first adsorption seats 1102 are spaced apart along a conveying direction of the first conveying member 1101. The first adsorption seats 1102 are configured to adsorb springs.

[0053] The second conveying assembly 1200 comprises a second conveying member 1201 and a plurality of second adsorption seats 1202. The second adsorption seats 1202 are connected to the second conveying member 1201. The second conveying member 1201 is configured to circulate along a closed loop track. The second adsorption seats 1202 are spaced apart along a conveying direction of the second conveying member 1201. The second adsorption seats 1202 are configured to adsorb springs.

[0054] It can be understood that, during the conveying process of the second conveying assembly 1200, the pushing structure 1300 pushes the springs on the second adsorption seats 1202 to the first adsorption seats 1102, so that the springs conveyed by the second conveying assembly 1200 are merged into the first conveying assembly 1100.

[0055] Further, during the conveying process of the first conveying assembly 1100 and the second conveying assembly 1200, the positions of the second adsorption seats 1202 can be aligned with the first adsorption seats 1102, so that the springs can be pushed from the second adsorption seats 1202 to the first adsorption seats 1102. It can be understood that the first adsorption seats 1102 are equally spaced apart, and the second adsorption seats 1202 are equally spaced apart. Specifically, the distance between two adjacent first adsorption seats 1102 is A, and the distance between two adjacent second adsorption seats 1202 carrying springs is B, which satisfies B = N*A, where N is a positive integer. In this case, it can be ensured that the first conveying assembly 1100 has the first adsorption seats 1102 corresponding to the second adsorption seats 1202 carrying springs.

[0056] It should be noted that the distance between two adjacent first adsorption seats 1102 refers to the distance between the centers of the two first adsorption seats 1102 with reference to the axis in the length direction of the first adsorption seat 1102. Correspondingly, the distance between two adjacent second adsorption seats 1202 carrying springs refers to the distance between the centers of the two second adsorption seats 1202 with reference to the axis in the length direction of the second adsorption seat 1202. Of course, as an equivalent alternative, the distance can also be determined with reference to the outer side of the first adsorption seat 1102 or the second adsorption seat 1202 in the length direction.

[0057] With reference to the drawings, the second conveying assembly 1200 is configured with a spring winding assembly 2000, and the spring output from the spring winding assembly 2000 is loaded into the second suction seats 1202. It can be understood that whether the first conveying assembly 1100 is configured with the spring winding assembly 2000 depends on the actual production situation.

[0058] As an embodiment, at most one of the two adjacent second suction seats 1202 carries a spring, and the second conveying assembly 1200 has the following situations: in some examples, the spring winding assembly 2000 configured in the second conveying assembly 1200 is not started, and each of the second suction seats 1202 is empty. In some examples, by setting the speed of the spring winding assembly 2000 configured in the second conveying assembly 1200, at least one of the second suction seats 1202 between the two adjacent second suction seats 1202 carrying a spring is empty.

[0059] Of course, it can be understood that by setting the speed of the spring winding assembly 2000 configured in the second conveying assembly 1200, each of the second suction seats 1202 in the second conveying assembly 1200 carries a spring.

[0060] As an embodiment, the first conveying assembly 1100 is not configured with the spring winding assembly 2000, and each of the first suction seats 1102 is empty before merging, and the springs in the first conveying assembly 1100 come from the second conveying assembly 1200.

[0061] As an embodiment, the first conveying assembly 1100 is configured with the spring winding assembly 2000, and the spring winding assembly 2000 is running, and at least part of the first suction seats 1102 carry a spring before merging.

[0062] In some examples, each of the first suction seats 1102 carries a spring before merging, and the first conveying assembly 1100 does not receive a spring from the second conveying assembly 1200.

[0063] In some examples, the first conveying assembly 1100 has some empty first suction seats 1102 before merging, and at least part of the empty first suction seats 1102 are used to receive a spring from the second conveying assembly 1200. In this case, the first conveying assembly 1100 has the following situations after merging: in some examples, each of the first suction seats 1102 carries a spring after merging. In some examples, the first conveying assembly 1100 has empty first suction seats 1102 after merging.

[0064] Of course, it can be understood that if the spring winding assembly 2000 configured in the first conveying assembly 1100 is not running, each of the first suction seats 1102 is empty before merging.

[0065] In one implementation, the first conveying assembly 1100 and the second conveying assembly 1200 are each configured as one unit. In this case, the spring machine is designed such that the first conveying assembly 1100 and the second conveying assembly 1200 are each equipped with a coiling spring assembly 2000. Furthermore, the coiling spring assembly 2000 can be selected as a double-line machine head or a single-line machine head depending on actual production needs. It is understood that a portion of the first suction seat 1102 of the first conveying assembly 1100 is used to carry the springs made by the coiling spring assemblies 2000 configured in the first conveying assembly 1100, and the remaining first suction seat 1102 in the first conveying assembly 1100 is at least partially used to receive springs from the second conveying assembly 1200.

[0066] Specifically, the design N=2, meaning the distance between two adjacent second adsorption seats 1202 is twice the distance between two adjacent first adsorption seats 1102. Understandably, in this case, before the springs on the second conveying assembly 1200 converge onto the first conveying assembly 1100, the first adsorption seats 1102 carrying springs and empty first adsorption seats 1102 on the first conveying assembly 1100 are spaced apart. The empty first adsorption seats 1102 are used to correspond to the second adsorption seats 1202, and the springs from the second adsorption seats 1202 push onto the empty first adsorption seats 1102.

[0067] Of course, if N is greater than 2, before the springs on the second conveying assembly 1200 merge onto the first conveying assembly 1100, there are N-1 empty first suction seats 1102 between two adjacent first suction seats 1102 carrying springs on the first conveying assembly 1100. The second suction seat 1202 aligns with one of these N-1 empty first suction seats 1102 to complete the spring pushing and merging.

[0068] In one implementation, the first conveying component 1100 and the second conveying component 1200 are each configured as one, and the spring mechanism is configured with coil spring components 2000 for the first conveying component 1100 and the second conveying component 1200 respectively. Further, if N=1 is designed, the first adsorption seat 1102 in the first conveying component 1100 and the second adsorption seat 1202 in the second conveying component 1200 can correspond one to one.

[0069] Furthermore, to expand the applicability of the spring machine, the springs conveyed by the second conveying component 1200 are designed to have different specifications than the springs conveyed by the first conveying component 1100 before merging, that is, the coil spring components 2000 configured in the first conveying component 1100 and the second conveying component 1200 are different.

[0070] In this case, depending on the spring specifications required for actual production, either the first conveying assembly 1100 and the configured coiled spring assembly 2000 are activated, or the second conveying assembly 1200 and the configured coiled spring assembly 2000 are activated. It is understood that when activating the second conveying assembly 1200 and the configured coiled spring assembly 2000, the first conveying assembly 1100 needs to be activated simultaneously, but the coiled spring assembly 2000 configured with the first conveying assembly 1100 does not need to be activated.

[0071] It should be noted that the phrase "the spring coil assemblies 2000 configured in the first conveying assembly 1100 and the second conveying assembly 1200 are different" refers to at least the following differences in the spring coil assemblies 2000: In some examples, the two spring coil assemblies 2000 are each equipped with a single-wire head, with one single-wire head connecting to a thin steel wire and the other connecting to a thick steel wire. In some examples, one spring coil assembly 2000 is equipped with a single-wire head and the other with a double-wire head. The steel wire connected to the single-wire head can be of the same specification as the thin steel wire connected to the double-wire head, or it can be of the same specification as the thick steel wire connected to the double-wire head, or the specifications of the three types of steel wires connected to the single-wire head and the double-wire head can be different. In some examples, the two spring coil assemblies 2000 are each equipped with a double-wire head, and the specification of the steel wire connected to the double-wire head is selected according to actual production requirements.

[0072] In one implementation, two second conveying components 1200 are configured, and the spring machine is equipped with a coiling spring assembly 2000 for each of the two second conveying components 1200. The coiling spring assembly 2000 can be selected as a double-line head or a single-line head according to actual production needs. Further, one first conveying component 1100 is configured, and the springs conveyed by the two second conveying components 1200 are all converged to the first conveying component 1100. It can be understood that the two second conveying components 1200 are each equipped with a pushing structure 1300.

[0073] Referring to the accompanying drawings, second conveying components 1200 are respectively provided on both sides of the first conveying component 1100. One of the second conveying components 1200 pushes a spring from one side of the first conveying component 1100 to the first adsorption seat 1102 through a pushing structure 1300, and the other second conveying component 1200 pushes a spring from the other side of the first conveying component 1100 to the first adsorption seat 1102 through the pushing structure 1300.

[0074] In some examples, the first conveying assembly 1100 of the spring machine is not equipped with the coiling spring assembly 2000. In this case, the spring machine has a dual-head structure, and each of the first suction seats 1102 in the first conveying assembly 1100 is used to carry the spring from the second conveying assembly 1200. Referring to the attached figures, with N=2, the first suction seats 1102 in the first conveying assembly 1100 are divided into two groups, with the two groups of first suction seats 1102 spaced apart from each other. The two groups of first suction seats 1102 are used to align with the second suction seats 1202 in the two second conveying assemblies 1200.

[0075] It is understandable that, taking the i-th first adsorption seat 1102 in the first conveying component 1100 as an example, where i is a positive integer, the i-th, i+2-th, ... first adsorption seats 1102 are used to align with the second adsorption seats 1202 in the second conveying component 1200 on one side, the i+1-th, i+3-th, ... first adsorption seats 1102 are used to align with the second adsorption seats 1202 in the second conveying component 1200 on the other side, and so on.

[0076] In some examples, the spring machine is designed with a coiled spring assembly 2000 configured for the first conveyor assembly 1100. In this case, the spring machine has a three-head structure, which significantly improves production efficiency. It is understandable that the coiled spring assembly 2000 configured for the first conveyor assembly 1100 may be a dual-line or single-line head depending on actual production needs.

[0077] Furthermore, with N=3, taking the i-th first adsorption seat 1102 in the first conveying assembly 1100 as an example, i takes a positive integer. The coil spring assembly 2000 configured in the first conveying assembly 1100 outputs a spring to the i-th first adsorption seat 1102. The (i+1)-th and (i+2)-th first adsorption seats 1102 are both empty. The (i+1)-th first adsorption seat 1102 is used to align with the second adsorption seat 1202 in the second conveying assembly 1200 on one side. The (i+2)-th first adsorption seat 1102 is used to align with the second adsorption seat 1202 in the second conveying assembly 1200 on the other side. The (i+3)-th first adsorption seat 1102 is used to carry the spring made by the coil spring assembly 2000 configured in the first conveying assembly 1100, and so on.

[0078] In one embodiment, the first conveying member 1101 and the second conveying member 1201 have parallel first straight sections along the conveying direction. Referring to the accompanying drawings, the first straight sections of the first conveying member 1101 and the second conveying member 1201 are arranged parallel to each other. It is understood that when the first suction seat 1102 on the first conveying member 1101 and the second suction seat 1202 on the second conveying member 1201 enter the first straight section, the second suction seat 1202 aligns with the corresponding first suction seat 1102, so that the spring pushes the second suction seat 1202 to the first suction seat 1102.

[0079] Specifically, the pushing structure 1300 is disposed on the first straight section of the second conveyor 1201, and further, the pushing structure 1300 is disposed at an angle relative to the first straight section. Referring to the accompanying drawings, along the direction of the conveying spring of the second conveyor 1201, the upstream end of the pushing structure 1300 is away from the first conveyor 1101, and the downstream end is close to the first conveyor 1101.

[0080] In this case, when the spring conveyed by the second conveying assembly 1200 approaches the pushing structure, the side of the pushing structure abuts against the end of the spring, and as the second conveying assembly 1200 conveys, the side of the pushing structure gradually applies pressure to the spring so that the spring can be pushed from the second adsorption seat 1202 to the first adsorption seat 1102.

[0081] In some examples, the push structure 1300 includes a conveyor that circulates along a closed-loop trajectory. The side of the conveyor is used to push the spring. It is understood that as the spring in the second conveying assembly 1200 is conveyed forward, the side of the conveyor that abuts against the spring is also conveyed forward to reduce the friction between the side of the conveyor and the end of the spring and prevent displacement of the spring position.

[0082] Understandably, the side of the conveying component that abuts against the spring can be decomposed to obtain a first component velocity along the conveying direction of the second conveying assembly 1200. Furthermore, the first component velocity is consistent with the conveying speed of the conveying spring of the second conveying assembly 1200.

[0083] Considering the high temperature of the spring when it exits from the coil spring assembly 2000, the transmission components, including the transmission chain, are further designed to be made of a high-temperature resistant material. Furthermore, the transmission chain ensures smooth operation when pushing the spring, reducing impact and friction on the spring.

[0084] Of course, as an alternative, the conveyor can also be designed such that, in some examples, the conveyor includes a conveyor chain plate, the surface of which is used to abut against a spring. In some examples, the conveyor includes a conveyor belt.

[0085] Regarding push structure 1300, at least the following alternatives exist.

[0086] In some examples, the push structure 1300 includes multiple rolling elements spaced apart along a direction inclined relative to the first straight section. It is understood that as the second conveying assembly 1200 gradually conveys the spring forward, the sides of each rolling element successively abut against the spring, gradually pushing the spring towards the first suction seat 1102. It is also understood that the push structure 1300 includes a mounting base, to which the rolling elements are hinged, and the mounting base is configured as a mounting plate or mounting bracket.

[0087] Furthermore, the rolling element is configured as a ball, roller, or cylinder. It should be noted that when the rolling element is configured as a ball, the ball array is distributed as follows.

[0088] In some examples, the push structure 1300 includes a baffle, which is fixed in position and is inclined relative to the first straight section. The side of the baffle is used to abut against the spring on the second adsorption seat 1202. The side of the baffle forms a guide surface that is inclined relative to the first straight section. As the second conveying assembly 1200 gradually conveys the spring forward, the side of the baffle gradually pushes the spring toward the first adsorption seat 1102.

[0089] In some examples, the tilt angle of the baffle relative to the first straight section is adjustable. Specifically, the baffle is hinged to the frame of the second conveying assembly 1200 or to the frame of the transfer device. The baffle is connected to a driver capable of pushing the baffle to rotate it about the hinge point. The driver includes a pneumatic or hydraulic cylinder or a motor.

[0090] Understandably, to reduce friction between the baffle and the spring, the side of the baffle used to press against the spring is made as smooth as possible. Specifically, the side of the baffle is polished.

[0091] In some examples, the push structure 1300 includes a push driver and a push member connected to the push driver, which is capable of driving the push member to extend and retract in the direction in which the spring pushes from the second adsorption seat 1202 toward the first adsorption seat 1102. Specifically, the push driver includes a cylinder, a hydraulic cylinder, or a motor, and the push member includes a push block or a push plate. It is understood that when the second adsorption seat 1202 is aligned with the first adsorption seat 1102, the push member, driven by the push driver, pushes the spring on the second adsorption seat 1202, causing the spring to push toward the first adsorption seat 1102.

[0092] It is understood that the push structure 1300 is disposed on the side of the second conveying assembly 1200, and the side of the push structure 1300 is far away from the first conveying assembly 1100. In this case, the push driver and the push member are located at the side edge of the second conveying assembly 1200, which can avoid the transmission of the spring in the second conveying assembly 1200.

[0093] In some examples, when the push structure 1300 is equipped with a push driver and a pusher, the first conveyor 1101 and the second conveyor 1201 can be designed to have parallel first straight sections along the conveying direction. Alternatively, the first conveyor 1101 and the second conveyor 1201 can be designed without parallel first straight sections along the conveying direction. Instead, the first conveyor 1101 and the second conveyor 1201 have positions in the conveying path where the first suction seat 1102 and the second suction seat 1202 are aligned, where the pusher pushes the spring from the second suction seat 1202 towards the first suction seat 1102.

[0094] In one embodiment, the transfer device includes an inwardly curved guide structure 1400, and both the first conveyor 1101 and the second conveyor 1201 are provided with at least one guide structure 1400. Specifically, the guide structure 1400 is curved inward to form an arc shape. The first conveyor 1101 is guided inward by the guide structure 1400, and the second conveyor 1201 is guided inward by the guide structure 1400 to form an inwardly curved conveying path. The first conveyor 1101 and the second conveyor 1201 each have at least one inwardly curved conveying section.

[0095] Specifically, by setting the guide structure 1400, the conveying path formed by the first conveying member 1101 is one of E-shape, F-shape, H-shape, I-shape, L-shape, N-shape, T-shape, U-shape, V-shape, and Z-shape, and the conveying path formed by the second conveying member 1201 is one of E-shape, F-shape, H-shape, I-shape, L-shape, N-shape, T-shape, U-shape, V-shape, and Z-shape.

[0096] It should be noted that the term "inward bending" refers to a conveying path that bends inward, with the area enclosed by the closed-loop trajectory of the first conveying member 1101 or the second conveying member 1201 as a reference, and the area boundary is recessed. Understandably, this extends the conveying path of the spring, increases the cooling time of the spring, and saves space occupied by the first conveying assembly 1100 and the second conveying assembly 1200.

[0097] Of course, as an alternative, it can also be designed such that, in some examples, the first conveyor 1101 is configured with at least one guide structure 1400, while the second conveyor 1201 is not configured with a guide structure 1400.

[0098] In one embodiment, the first adsorption seat 1102 fixes the spring by magnetic adsorption, and the second adsorption seat 1202 fixes the spring by magnetic adsorption. Specifically, the first adsorption seat 1102 is configured as a magnetic seat, and the second adsorption seat 1202 is configured as a magnetic seat.

[0099] Understandably, in this case, during the process of the pushing structure 1300 pushing the spring, the second adsorption seat 1202 can always have an adsorption effect on the spring, and when the spring moves towards the first adsorption seat 1102, the first adsorption seat 1102 can also provide an adsorption effect on the spring in time to ensure that the spring moves smoothly during the pushing process.

[0100] In some examples, the surface of the first adsorption seat 1102 is provided with a limiting groove, and the end of the limiting groove extends to the edge of the first adsorption seat 1102 to form a port. Similarly, the surface of the second adsorption seat 1202 is provided with a limiting groove, and the end of the limiting groove extends to the edge of the second adsorption seat 1202 to form a port. By providing the limiting grooves, it can be ensured that the position of the spring on the first adsorption seat 1102 and the second adsorption seat 1202 does not shift. It is understood that when the second adsorption seat 1202 is aligned with the first adsorption seat 1102, the two limiting grooves are aligned and connected.

[0101] Regarding the adsorption and fixation of the spring by the first adsorption seat 1102 and the second adsorption seat 1202, as an alternative, it can also be designed as follows: the first adsorption seat 1102 and the second adsorption seat 1202 are respectively set as electromagnetic structures, which can generate magnetic attraction when energized.

[0102] Based on the above description of the transfer device, the following will describe the production method of bagged spring strings. It should be noted that the following description is illustrative and not a specific limitation of the present invention.

[0103] This invention relates to a method for producing bagged spring strings, wherein the method uses the production equipment described above to manufacture the bagged spring strings. Specifically, when the first conveying assembly 1100 and the second conveying assembly 1200 convey the springs, the second adsorption seat 1202 aligns with one of the first adsorption seats 1102 in the first conveying assembly 1100, and the pushing structure 1300 pushes the spring on the second adsorption seat 1202 onto the first adsorption seat 1102.

[0104] In some examples, the push structure 1300 gradually pushes the spring on the second adsorption seat 1202 to the corresponding first adsorption seat 1102 in an inclined guiding manner. In some examples, the push structure 1300 pushes the spring from the second adsorption seat 1202 to the first adsorption seat 1102 in a linear pushing manner.

[0105] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

[0107] In the description of this invention, the presence of a comma ("、") in the patent title indicates an "and" relationship, not an "or" relationship. For example, if the patent title is "A and B", it means that the content claimed by this invention includes: the technical solution with the subject matter title A and the technical solution with the subject matter title B.

Claims

1. A transfer device, characterized in that: include The first conveying assembly (1100) includes a first conveying member (1101) and a plurality of first adsorption seats (1102). The first conveying member (1101) runs cyclically along a closed-loop trajectory. The first adsorption seats (1102) are connected to the first conveying member (1101) and are used to adsorb springs. The first adsorption seats (1102) are evenly distributed along the conveying direction of the first conveying member (1101). The second conveying assembly (1200) includes a second conveying member (1201) and a plurality of second adsorption seats (1202). The second conveying member (1201) runs cyclically along a closed-loop trajectory. The second adsorption seats (1202) are connected to the second conveying member (1201) and are used to adsorb springs. The second adsorption seats (1202) are evenly distributed along the conveying direction of the second conveying member (1201). A push structure (1300) is used to push the spring on the second adsorption seat (1202) to the first adsorption seat (1102) so that the spring conveyed by the second conveying component (1200) merges into the first conveying component (1100). Wherein, the first conveyor (1101) and the second conveyor (1201) have parallel first straight sections along the conveying direction, the push structure (1300) is disposed on the first straight section of the second conveyor (1201), the push structure (1300) is inclined relative to the first straight section, the upstream end of the push structure (1300) is away from the first conveyor (1101), and the downstream end is close to the first conveyor (1101); the push structure (1300) includes a conveyor that runs cyclically along a closed-loop trajectory, the side of the conveyor is used to push the spring, the conveyor includes one of a conveyor belt, a conveyor chain, and a conveyor chain plate, or; the push structure (1300) includes a baffle; or, the push structure (1300) includes multiple rolling elements; the distance between two adjacent first adsorption seats (1102) is set as A, and the distance between two adjacent second adsorption seats (1202) carrying springs is set as B, satisfying: B=N*A, where N is a positive integer.

2. The transfer device according to claim 1, characterized in that: At most one of two adjacent second adsorption seats (1202) carries a spring; or, each of the second adsorption seats (1202) carries a spring.

3. The transfer device according to claim 2, characterized in that: After merging, the first conveying assembly (1100) has an empty first adsorption seat (1102); or, after merging, each of the first adsorption seats (1102) carries a spring.

4. The transfer device according to claim 1, characterized in that: The transfer device includes an inwardly curved guide structure (1400), through which the first conveyor (1101) bends inward and / or the second conveyor (1201) bends inward through the guide structure (1400).

5. The transfer device according to any one of claims 1 to 4, characterized in that: Two second conveying components (1200) are configured, and the two second conveying components (1200) are respectively configured with the push structure (1300). One of the second conveying components (1200) pushes the spring from one side of the first conveying component (1100) to the first adsorption seat (1102) through the push structure (1300), and the other second conveying component (1200) pushes the spring from the other side of the first conveying component (1100) to the first adsorption seat (1102) through the push structure (1300).

6. A spring mechanism, characterized in that: include Spring coil assembly (2000); The transfer device as described in any one of claims 1 to 5; The first conveying assembly (1100) and the second conveying assembly (1200) are respectively configured with the coil spring assembly (2000).

7. The spring machine according to claim 6, characterized in that: The coil spring assembly (2000) includes a single-wire head or a double-wire head, which supplies steel wire to the spring machine through multiple rotatable wire frames (5000).

8. A spring mechanism, characterized in that: include Spring coil assembly (2000); The transfer device as described in claim 5; The two second conveying assemblies (1200) are respectively configured with the coil spring assembly (2000).

9. The spring machine according to claim 8, characterized in that: The coil spring assembly (2000) includes a single-wire head or a double-wire head, which supplies steel wire to the spring machine through multiple rotatable wire frames (5000).

10. A production equipment for bagged spring strings, characterized in that: include The spring machine as described in any one of claims 6 to 9; A spring compression conveying assembly (3000) is provided, wherein a spring in the first conveying assembly (1100) is transferred to the spring compression conveying assembly (3000), and the spring compression conveying assembly (3000) is used to compress the spring and convey it to the cloth bag; A welding assembly for welding cloth bags into bag spring strings.

11. A method for producing bagged spring strings, characterized in that: The production method uses the production equipment as described in claim 10 to manufacture bagged spring strings. When the first conveying assembly (1100) and the second conveying assembly (1200) are conveying springs, the second adsorption seat (1202) is aligned with one of the first adsorption seats (1102) in the first conveying assembly (1100), and the pushing structure (1300) pushes the spring on the second adsorption seat (1202) onto the first adsorption seat (1102).

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