Spring compression into bag device, bagged spring machine and spring compression into bag method

Abstract

The application provides a spring compression and bagging device, a spring bagging machine and a spring compression and bagging method. The spring compression and bagging device comprises a compression module and a bagging module. The compression module comprises a compression assembly, a first driving assembly and a second driving assembly. The compression assembly comprises a limiting piece and a compression piece. The limiting piece and the compression piece enclose a compression chamber for accommodating a spring. The limiting piece is arranged in the radial direction of the spring. The two compression pieces are arranged opposite to each other in the axial direction of the spring. The axial direction is parallel to the transverse direction. The first driving assembly can drive the compression pieces to move close to or away from each other, so as to compress the spring when the compression pieces move close to each other. The second driving assembly can drive the compression assembly to switch between a compression station and a pushing station. The bagging module comprises a pushing piece and a third driving assembly. The third driving assembly can drive the pushing piece to reciprocate in the longitudinal direction, so as to push the spring downstream. The spring compression and bagging device can improve the stability of the spring compression process and reduce the risk of spring arching or falling off.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of spring string manufacturing, in particular to a spring compression into bag device, a bagged spring machine and a spring compression into bag method. BACKGROUND

[0002] When manufacturing spring strings, the springs need to be sent into cloth bags for packaging after compression. In some related technologies, a gradually narrowing conveying channel is used to convey and compress at the same time. Since the stress direction of the compression surface of the spring is inclined to the axis of the spring at this time, the spring is easily arched or even popped off when the compression speed is too fast. This leads to the phenomenon of spring arching when packaging springs with high compression ratio, even if the length of the conveying channel is lengthened. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a spring compression into bag device, a bagged spring machine and a spring compression into bag method. The spring compression into bag device can improve the stability of the spring compression process and reduce the risk of spring arching or falling off.

[0004] According to the spring compression into bag device provided by the present application, the spring compression into bag device comprises a compression module and a bagging module. The compression module comprises a compression assembly, a first driving assembly and a second driving assembly. The compression assembly comprises a limiting piece and a compression piece. The limiting piece and the compression piece enclose a compression chamber for accommodating a spring. The limiting piece is arranged in the radial direction of the spring, and the two compression pieces are arranged opposite to each other in the axial direction of the spring. The axial direction is parallel to the transverse direction. The first driving assembly can drive the compression pieces to move closer to or away from each other to compress the spring when they are close to each other. The second driving assembly can drive the compression assembly to switch between a compression station and a pushing station. The bagging module comprises a pushing piece and a third driving assembly. The third driving assembly can drive the pushing piece to move reciprocally in the longitudinal direction. In the compression station, the compression chamber is connected with a conveying piece conveying the spring. The spring enters the compression chamber and is compressed by the compression piece. During the compression process, the limiting piece limits the radial deformation of the spring in at least two directions intersecting with each other, or the limiting piece and the conveying piece jointly limit the radial deformation of the spring in at least two directions intersecting with each other. In the pushing station, the spring is located on the movement route of the pushing piece to allow the pushing piece to obtain and push the compressed spring downstream.

[0005] According to the spring compression and bagging device provided in the application, the following technical effects are achieved: on one hand, the spring compression and bagging device compresses the spring to the right position before pushing the spring, thereby avoiding the spring arching phenomenon that may occur when the spring is being conveyed and compressed at the same time; on the other hand, the spring is limited from the at least two directions where the springs intersect with each other when being compressed, thereby fully limiting the freedom of the spring in the radial direction and avoiding the spring arching or falling off during the compression process, so that the spring compression and bagging device can improve the stability of the spring compression process and reduce the risk of spring arching or falling off; in addition, the spring compression and bagging device can also shorten the conveying distance of the spring, which helps to improve the compactness of the structure of the spring compression and bagging device.

[0006] According to some embodiments of the application, the compression chamber has a first opening for receiving the spring, the compression assembly moves along the first opening from the pushing station to the compression station, at the compression station, the conveying member blocks the first opening, and the limiting member and the conveying member jointly limit the spring; the limiting member includes first baffles and second baffles, the first baffles are located on the adjacent sides of the first opening, the two first baffles are oppositely arranged, and the second baffles are located on the opposite sides of the first opening; the compression chamber has a second opening for the pushing member to pass through, the second opening extends along the longitudinal direction, and the second opening only allows the compressed spring to pass through.

[0007] According to some embodiments of the application, the pushing member includes two groups of tines oppositely arranged in the transverse direction, the tines are located at one end of the pushing member close to the downstream, the tines extend in the longitudinal direction, and the tines are used to clamp the compressed spring; the compression member includes an avoidance slot, the avoidance slot is located on the side of the compression member that contacts the spring, the avoidance slot extends in the longitudinal direction and penetrates through the compression member to allow the tines to pass through the avoidance slot and obtain the spring.

[0008] According to some embodiments of the application, the pushing member includes a partition plate arranged between the two groups of tines, the partition plate extends in the longitudinal direction, and the partition plate is used to be inserted between the spring wires of the spring to avoid the spring wires from being entangled when the spring leaves the pushing member and rebounds.

[0009] According to some embodiments of the application, the spring compression and bagging device includes a cloth supporting member, the cloth supporting member extends along the longitudinal direction from the pushing station to a packaging station downstream, the cloth bag is wrapped around the front end of the cloth supporting member, the cloth supporting member defines a bagging channel that extends into the cloth bag, and the pushing member pushes the spring along the bagging channel.

[0010] According to some embodiments of the present application, the spring compression into bag device comprises an edge sealing assembly located on one side of the cloth supporting member, the edge sealing assembly being used to connect two long edges of the cloth to form the cloth bag wrapping the cloth supporting member.

[0011] According to some embodiments of the present application, the spring compression into bag device comprises a packaging module located at a packaging station, the packaging module comprising a packaging assembly capable of clamping the cloth bag in the vertical direction and packaging the single spring into a bagged spring at the packaging station, the packaging assembly being capable of moving in the longitudinal direction to scrape the spring from the pushing member into the cloth bag when clamping the cloth bag and to convey the packaged bagged spring downstream.

[0012] According to some embodiments of the present application, the packaging assembly comprises a welding die and a welding head arranged oppositely, the welding die and the welding head being respectively located on two sides of the cloth bag in the vertical direction, the welding die and the welding head being capable of moving towards or away from each other to clamp and weld the cloth bag when moving towards each other; the packaging assembly further comprises two first clamping members arranged oppositely, the two first clamping members being respectively located on two sides of the cloth bag, the first clamping members following the welding die and the welding head to move towards or away from each other to scrape the spring from the pushing member.

[0013] According to some embodiments of the present application, the packaging module comprises a cloth clamping assembly located upstream of the packaging assembly, the cloth clamping assembly comprising two second clamping members, the two second clamping members being respectively located on two sides of the cloth bag in the vertical direction, the second clamping members being capable of moving towards or away from each other to allow the cloth clamping assembly and the packaging assembly to alternately clamp the cloth bag and limit the spring to be packaged.

[0014] According to some embodiments of the present application, the spring compression into bag device comprises a conveying module, the conveying module comprising an eighth driving assembly and the conveying member, the conveying member adopting a magnetic seat, the conveying member being used to adsorb and fix the spring in the radial direction, the eighth driving assembly being capable of driving the conveying member to move to receive and convey the spring from upstream to the compression module.

[0015] According to some embodiments of the present application, the spring compression into bag device comprises a spring winding device located upstream of the spring compression into bag device, the spring winding device being used to provide the spring.

[0016] According to the spring compression into bag method provided in the application, the spring compression into bag device provided in the application is used, and the spring compression into bag method comprises the following steps: moving a compression assembly to a compression station; a spring enters a compression chamber, the radial deformation of the spring is limited in at least two directions intersecting with each other, and a compression member compresses the limited spring in an axial direction; moving the compression assembly to a pushing station; a pushing member moves in a longitudinal direction from an upstream of the compression assembly to a downstream of the compression assembly, and the pushing member obtains the compressed spring from the compression assembly and pushes the spring downstream.

[0017] According to some embodiments of the application, the spring compression into bag method further comprises that the pushing member pushes the spring to reach a packaging station; defining the spring carried by the pushing member as an n+1th spring, a packaging assembly clamps a cloth bag and moves downstream in a longitudinal direction to package an nth spring as a bagged spring and scrape the n+1th spring from the pushing member into the cloth bag by two first clamping members; the pushing member moves upstream to reset; and the packaging assembly releases the cloth bag and moves upstream to reset.

[0018] According to some embodiments of the application, the cloth clamping assembly and the packaging assembly alternately clamp the cloth bag, and the n+1th spring is limited by the cloth clamping assembly during the process that the packaging assembly releases the cloth bag and moves upstream to reset. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0020] Figure 1 is a structural schematic diagram of a bagged spring machine of an embodiment of the present application;

[0021] Figure 2 is a structural schematic diagram of a spring compression into bag device of an embodiment of the present application;

[0022] Figure 3 is Figure 2 is a local enlarged view of region A in FIG. 8;

[0023] Figure 4 is a local structural schematic diagram of a spring compression into bag device of an embodiment of the present application

[0024] Figure 5 is a schematic diagram of an action process of the spring compression into bag device of an embodiment of the present application when the spring compression into bag device is running;

[0025] Figure 6 is a schematic diagram of an action process of the spring compression into bag device of an embodiment of the present application when the spring compression into bag device is running;

[0026] Figure 7 is a schematic diagram of an action process of the spring compression into bag device of an embodiment of the present application when the spring compression into bag device is running;

[0027] Figure 8 is a schematic diagram of the action process of the spring compression into bag device of the embodiment of the present application during operation;

[0028] Figure 9 is a schematic diagram of the principle of the spring compression into bag device of the embodiment of the present application;

[0029] Figure 10 is a schematic diagram of the principle of the spring compression into bag device of the embodiment of the present application;

[0030] Figure 11 is a schematic diagram of the structure of the embodiment of the present application when the compression assembly compresses the spring;

[0031] Figure 12 is a schematic diagram of the structure of the embodiment of the present application when the pushing member obtains the spring from the compression assembly;

[0032] Figure 13 is a schematic diagram of the local structure of the pushing member of the embodiment of the present application;

[0033] Figure 14 is a schematic diagram of the action process of the packaging module of the embodiment of the present application during operation;

[0034] Figure 15 is a schematic diagram of the action process of the packaging module of the embodiment of the present application during operation;

[0035] Figure 16 is a schematic diagram of the action process of the packaging module of the embodiment of the present application during operation;

[0036] Figure 17 is a schematic diagram of the action process of the packaging module of the embodiment of the present application during operation.

[0037] Reference signs:

[0038] compression module 1000, compression assembly 1100, limiting member 1110, first baffle 1111, second baffle 1112, compression member 1120, avoiding groove 1121, first opening 1131, second opening 1132, third opening 1133, first driving assembly 1200, first eccentric wheel 1210, first connecting rod 1220, second driving assembly 1300, second driver 1310, second eccentric wheel 1320, second connecting rod 1330, rotating shaft 1340,

[0039] bagging module 2000, pushing member 2110, prong 2111, partition plate 2112, push rod 2113, third driving assembly 2200, third driver 2210, transmission belt 2220, first fixed block 2230, guide rail 2310, guide block 2320,

[0040] The packaging module 3000, the packaging assembly 3100, the welding mold 3110, the welding head 3120, the first clamping member 3130, the cloth clamping assembly 3200, the second clamping member 3210, the fourth driving assembly 3300, the fifth driving assembly 3400, the sixth driving assembly 3500, the sixth driver 3510, the rack 3520, the gear 3530,

[0041] The cloth supporting member 4110, the edge sealing assembly 4200,

[0042] The conveying module 5000, the conveying member 5110, the eighth driving assembly 5200,

[0043] The spring winding device 6000,

[0044] The spring 9100, the cloth bag 9200. DETAILED DESCRIPTION

[0045] The embodiments of the present application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are for the purpose of explanation of the present application, and are not to be understood as limiting the present application.

[0046] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and is not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number. If it is described that the first, the second is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0048] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0049] The bagged spring machine is used for sequentially packaging single springs into cloth bags to form spring strings. Since the packaged springs are in a compressed state, the springs need to be compressed before being fed into the cloth bags. High compression springs have the characteristics of large compression amount and easy variability. The conveying mode of conveying and compressing at the same time adopted by some related technologies cannot meet the conveying requirements of high compression springs, and the conveying stability is poor.

[0050] With reference to Figure 1 The bagged spring machine provided by the application comprises a spring winding device 6000 (only the spring winding device 6000 and a downstream butt joint head are schematically shown in the figure) and a spring compression and bagging device. The spring winding device 6000 is located upstream of the spring compression and bagging device. The spring winding device 6000 can wind a spring wire into a spring 9100. The spring compression and bagging device can compress and package the received spring 9100 into a cloth bag 9200.

[0051] With reference to Figure 2 The spring compression and bagging device provided by the first aspect of the application comprises a compression module 1000 and a bagging module 2000. The compression module 1000 is used for receiving a spring 9100. The compression module 1000 comprises a compression assembly 1100, a first driving assembly 1200 and a second driving assembly 1300. The first driving assembly 1200 can drive the compression assembly 1000 to compress the spring 9100. The second driving assembly 1300 can drive the compression assembly 1100 to switch between a compression station and a pushing station. The bagging module 2000 comprises a pushing member 2110 and a third driving assembly 2200. The third driving assembly 2200 can drive the pushing member 2110 to reciprocate in the longitudinal direction. In the pushing station, the spring 9100 is located on the movement route of the pushing member 2110, so as to allow the pushing member 2110 to obtain and push the compressed spring 9100 downstream.

[0052] Further with reference to Figure 3 and Figure 4 The compression assembly 1100 comprises a limiting member 1110 and a compression member 1120. The limiting member 1110 and the compression member 1120 enclose a compression chamber for accommodating the spring 9100. The limiting member 1110 is arranged in the radial direction of the spring 9100. The two compression members 1120 are oppositely arranged in the axial direction of the spring 9100, which is parallel to the transverse direction. The first driving assembly 1200 can drive the compression members 1120 to move close to or away from each other, so as to compress the spring 9100 when moving close to each other. In the compression station, the compression chamber is butt jointed with a conveying member 5110 conveying the spring 9100. The spring 9100 enters the compression chamber and is compressed by the compression members 1120. During the compression process, the limiting member 1110 and the conveying member 5110 jointly limit the radial deformation of the spring 9100 in at least two directions intersecting with each other.

[0053] This application also provides a spring-compression bag-insertion method using a spring-compression bag-insertion device, taking the embodiment of the first aspect as an example, see below. Figure 5 , Figure 6 , Figure 7 and Figure 8 (Limiting component 1110 is hidden in the picture), the spring compression method for inserting the spring into the bag includes the following steps:

[0054] Compression component 1100 moves to the compression station;

[0055] Spring 9100 enters the compression chamber, restricting the radial deformation of spring 9100 in at least two intersecting directions, and compression member 1120 compresses the limited spring 9100 axially.

[0056] Compression component 1100 moves to the push station;

[0057] The pusher 2110 moves longitudinally from upstream of the compression assembly 1100 to downstream of the compression assembly 1100, and the pusher 2110 takes the compressed spring 9100 from the compression assembly 1100 and pushes it downstream.

[0058] Spring compression bag inserters can be applied to Figure 1 The bag-packing spring machine embodiment or other types of bag-packing spring machines are based on the spring compression bagging method. According to the spring compression bagging device provided in this application, on the one hand, by setting the bagging module 2000, the spring compression bagging device first compresses the spring 9100 into place and then pushes the spring 9100, thereby avoiding the arching phenomenon of the spring 9100 that may occur when compressing while conveying; on the other hand, during compression, the spring 9100 is upper-limited from at least two intersecting directions, thereby fully restricting the radial degree of freedom of the spring 9100 and preventing the spring 9100 from arching or falling off during the compression process. The spring compression bagging device can improve the stability of the spring 9100 compression process and reduce the risk of the spring 9100 arching or falling off; in addition, the spring compression bagging device can also shorten the conveying distance of the spring 9100, which helps to improve the structural compactness of the spring 9100 compression bagging device.

[0059] The bag-packing spring machine and the spring compression bag-packing method have the same beneficial effects as the spring compression bag-packing device, which will not be elaborated here.

[0060] In some embodiments, the bag-packing spring machine further includes a conveying module 5000, which includes an eighth drive assembly 5200 and a conveyor 5110. The conveyor 5110 employs a magnetic base and is used to radially attract and fix the springs 9100. The eighth drive assembly 5200 is capable of driving the conveyor 5110 to move between an upstream location and a compression station to receive and convey the springs 9100 from the upstream location to the compression module 1000.Figure 1 、 Figure 2 As shown in FIG. 52, the eighth driving assembly 5200 can employ a conveying line, such as a conveying belt or a conveying chain, and the conveying members 5110 are arrayed on the conveying line to cyclically receive and send out the spring 9100.

[0061] It can be understood that, in the embodiments of the present application, the longitudinal direction corresponds to the front-rear direction, the vertical direction corresponds to the up-down direction, and the lateral direction corresponds to the left-right direction. In other possible embodiments, the corresponding relationship between the directions can be changed according to the difference in the arrangement of the positions, and the route of the reciprocating movement can also be changed, without causing any obstacle to those skilled in the art. Figure 2 The compression chamber needs to have a first opening 1131 for receiving the spring 9100, so as to transfer the spring 9100 from the conveying member 5110 from the upstream to the compression chamber. Exemplarily, the compression assembly 1100 moves along the first opening 1131 from the pushing station to the compression station, and at the compression station, the conveying member 5110 blocks the first opening, and the limiting member 1110 and the conveying member 5110 jointly limit the spring 9100.

[0062] Specifically in the embodiments of the present application, the first opening 1131 is oriented along the radial direction of the spring 9100, the compression assembly 1100 moves along the vertical direction between the compression station and the pushing station, the first opening 1131 is oriented upward, the conveying member 5110 at the compression station is oriented downward and aligned with the first opening 1131, the first opening 1131 is oriented to and gradually approaches the conveying member 5110 during the movement of the compression assembly 1100 from the pushing station to the compression station, and the spring 9100 on the conveying member 5110 just enters the compression chamber from the first opening 1131 when the compression assembly 1100 reaches the compression station, so that the transfer of the spring 9100 is more efficient.

[0063] Figure 3 In some other embodiments, the first opening 1131 can also be designed at other positions and directions, and in addition, the compression assembly 1100 can also limit the spring 9100 in at least two directions perpendicular to the axial direction and intersecting with each other, without the aid of the conveying member 5110, but only by means of the limiting member 1110. Figure 4 Exemplarily, refer to FIG. 52, the eighth driving assembly 5200 can employ a conveying line, such as a conveying belt or a conveying chain, and the conveying members 5110 are arrayed on the conveying line to cyclically receive and send out the spring 9100.

[0064] Exemplarily, refer to FIG. 52, the eighth driving assembly 5200 can employ a conveying line, such as a conveying belt or a conveying chain, and the conveying members 5110 are arrayed on the conveying line to cyclically receive and send out the spring 9100.

[0065] Figure 9 Exemplarily, refer to FIG. 52, the eighth driving assembly 5200 can employ a conveying line, such as a conveying belt or a conveying chain, and the conveying members 5110 are arrayed on the conveying line to cyclically receive and send out the spring 9100.​In the embodiment of the second aspect of the application, the first opening 1131 is oriented along the radial direction, the first opening 1131 is oriented along the longitudinal direction, the compression assembly 1100 moves along the vertical direction between the compression station and the pushing station, and the conveying member 5110 carrying the spring 9100 also moves towards the compression station during the movement of the compression assembly 1100, and the spring 9100 is fed into the compression chamber during the movement.

[0066] For another example, referring to Figure 10 In the embodiment of the third aspect of the application, the first opening 1131 is oriented along the axial direction, the first opening 1131 is oriented along the transverse direction, the compression member 1120 can open and close the first opening 1131, and the compression assembly 1100 moves along the vertical direction between the compression station and the pushing station. At the compression station, the compression assembly 1100 is located on the side of the conveying member 5110 in the transverse direction, the compression member 1120 corresponding to the first opening 1131 first pushes the spring 9100 into the compression chamber in the transverse direction and closes the first opening 1131, and then further moves to compress the spring 9100.

[0067] In summary, as long as the limiting member 1110 can limit the radial deformation of the spring 9100 in at least two directions intersecting with each other, or the limiting member 1110 and the conveying member 5110 can jointly limit the radial deformation of the spring 9100 in at least two directions intersecting with each other, the tendency of the spring 9100 to arch in the radial direction can be sufficiently constrained and limited, the spring 9100 with a high compression ratio can be prevented from arching or even falling off during compression, and the technical effects of the application can be achieved.

[0068] It can be understood that, in the embodiment of the first aspect, the limiting member 1110 and the compression member 1120 are designed in a split type, and in addition, in some other possible embodiments, the limiting member 1110 and the compression member 1120 can also be designed in an integrated type. When the compression members 1120 move away from each other, the limiting member 1110 moves with the compression members 1120, so that the compression chamber is opened to receive the spring 9100, and when the compression members 1120 move close to each other, the limiting member 1110 is folded to re-form the compression chamber to limit the spring 9100 in the compression chamber.

[0069] Without departing from the design idea of the application, the compression assembly 1100 can also have other possible structural forms, which will not be described here.

[0070] The limiting member 1110 can be a limiting plate extending in the axial direction, a limiting rod, or other design forms. For example, referring to Figure 11 and Figure 12The limiting member 1110 can include first stop plates 1111 and second stop plates 1112. The first stop plates 1111 are located on the adjacent sides of the first opening 1131, and the two first stop plates 1111 are oppositely arranged. The second stop plates 1112 are located on the opposite sides of the first opening 1131. The two first stop plates 1111 cooperate to limit the radial deformation of the spring 9100 in the longitudinal direction. The second stop plates 1112 and the opposite conveying member 5110 cooperate to limit the radial deformation of the spring 9100 in the vertical direction, thereby sufficiently restricting the radial movement freedom of the spring 9100.

[0071] After the compression member 1120 compresses the spring 9100 in place, in order to transfer the spring in the compression chamber to the pushing member 2110, the compression chamber also needs to have a second opening 1132 for the pushing member 2110 to pass through, which is in the longitudinal direction. Specifically, in the embodiment of the first aspect, referring to Figure 11 and Figure 12 Since the first opening 1131 is oriented in the vertical direction, the compression chamber has two second openings 1132, which are penetrated in the longitudinal direction. The compression member 1120 compresses and positions the spring 9100 at a position aligned with the second openings 1132. The pushing member 2110 enters the compression chamber from one of the second openings 1132 and exits from the other second opening 1132, thereby pushing the spring 9100 downstream. The second opening 1132 should be designed to allow only the compressed spring 9100 to pass through, but not the spring 9100 that is not compressed in place, so as not to weaken the limiting effect of the limiting member 1110 in the axial direction, causing the spring 9100 to arch out of the second opening 1132 during compression.

[0072] In some embodiments, the compression chamber can also have a third opening 1133 for the compression member 1120 to pass through. The compression member 1120 is penetrated by the third opening 1133 to the outside of the compression chamber, thereby allowing the first drive assembly 1200 to drive the compression member 1120 from the outside.

[0073] Exemplarily, referring to Figure 11 and Figure 12 In the embodiment of the first aspect, the second stop plate 1112 forms the third opening 1133. The first drive assembly 1200 includes a first driver (not shown in the figure), a first eccentric wheel 1210, and a first connecting rod 1220. The first connecting rod 1220 connects the first eccentric wheel 1210 and the compression member 1120. The two first connecting rods 1220 are symmetrically hinged to the first eccentric wheel 1210. The first driver drives the first eccentric wheel 1210 to rotate, thereby causing the two compression members 1120 to synchronously move closer to or away from each other.

[0074] Continuing to refer to Figure 11 and Figure 12The second driving assembly 1300 can include a second driver 1310, two second eccentric wheels 1320 and two second connecting rods 1330. The second driver 1310 is connected to the two second eccentric wheels 1320 through a rotating shaft 1340. The two second eccentric wheels 1320 are connected to the two ends of the compression assembly 1100 in the horizontal direction through the two second connecting rods 1330. The second driver 1310 drives the second eccentric wheels 1320 to rotate, so that the two compression assemblies 1100 reciprocate in the vertical direction.

[0075] The first driving assembly 1200 and the second driving assembly 1300 can also be driven by a linear motor, a connecting rod mechanism, a transmission belt or other driving modes. Those skilled in the art can refer to the existing related technologies, which will not be described here.

[0076] It can be understood that after leaving the compression chamber, the compression of the spring 9100 needs to be maintained by other structures to prevent the spring 9100 from rebounding.

[0077] Exemplarily, the bagging module 2000 can include a retaining member located downstream of the compression assembly 1100. The retaining member forms a retaining passage which is in communication with the compression chamber through the second opening 1132. The spring 9100 leaving the compression chamber enters the retaining passage and is axially limited by the retaining member while being pushed by the pushing member 2110.

[0078] In some embodiments, the retaining member is a limiting plate extending longitudinally. Two retaining members are arranged in parallel and spaced apart in the horizontal direction to form the retaining passage. In the case of conveying the spring 9100 with a high compression ratio, since the retaining member is in a static state, the pressure-bearing surface of the spring 9100 rubs against the retaining member during the conveying of the spring 9100, generating a resistance inclined to the axis of the spring 9100, which easily causes the spring 9100 to deform or even arch.

[0079] In other embodiments, the retaining member is a conveying belt extending longitudinally. Two retaining members are arranged in parallel and spaced apart in the horizontal direction to form the retaining passage. The conveying belt moves longitudinally synchronously with the pushing member 2110, thereby avoiding the spring 9100 from rubbing and deforming. However, the conveying belt needs to be configured with a pulley and a driver, which causes the size of the conveying belt in the horizontal and longitudinal directions to be relatively large, the conveying distance to increase, the structure of the spring compression and bagging device to be not compact enough, and the space utilization to be insufficient.

[0080] Therefore, with reference to Figure 12 and Figure 13In an embodiment of the first aspect, the pushing member 2110 comprises two sets of tines 2111 arranged opposite to each other in the lateral direction, the tines 2111 are located at the end of the pushing member 2110 close to the downstream, the tines 2111 extend in the longitudinal direction, and the tines 2111 are used to clamp the compressed spring 9100. The pushing member 2110 plays a role of keeping the spring 9100 compressed while pushing the spring 9100 through the tines 2111, so that the spring and the tines 2111 are basically kept stationary relative to each other during the movement of the pushing member 2110, and no dynamic friction is generated between the two, thereby avoiding the friction deformation of the spring 9100 during the conveying process, saving the design of the conveying belt which is relatively complex and occupies a large space, helping to shorten the conveying distance and improve the compactness of the spring compression and bagging device structure. More importantly, the shortening of the conveying distance also helps to improve the pushing frequency of the spring 9100, thereby promoting the improvement of the packaging efficiency of the spring 9100.

[0081] With reference to Figure 13 , the pushing member 2110 can further comprise a partition plate 2112 arranged between the two sets of tines 2111, the partition plate 2112 extends in the longitudinal direction, and the partition plate 2112 is used to be inserted between the spring wires of the spring 9100 to avoid the entanglement of the spring wires when the spring 9100 leaves the pushing member 2110 and rebounds.

[0082] The pushing member 2110 can further comprise a push rod 2113, the partition plate 2112 and the tines 2111 are respectively mounted on the push rod 2113, the push rod 2113 extends in the longitudinal direction, and a third driving assembly 2200 is connected to the push rod 2113 to drive the pushing member 2110. Specifically in Figure 13 an embodiment, the third driving assembly 2200 comprises a third driver 2210 and a transmission belt 2220, the push rod 2113 is connected to the transmission belt 2220 through a first fixed block 2230, and reciprocates in the longitudinal direction under the guidance of a guide assembly (here, a longitudinally extending guide rail 2310). The push rod 2113 can avoid interference with the structure downstream of the third driving assembly 2200, but the push rod 2113 may be bent and deformed to affect the accuracy during pushing. Therefore, the guide assembly can further comprise a guide block 2320, the guide block 2320 forms a guide groove, the push rod 2113 passes through the guide groove, and the guide block 2320 supports and guides the push rod 2113.

[0083] The third driving assembly 2200 can also be driven by linear motors, linkage mechanisms, transmission belts and other driving methods. Those skilled in the art can refer to the existing related technologies, which will not be described here.

[0084] It can be understood that the cloth bag 9200 is formed by cloth jointing, and before the spring 9100 is packaged, in order to keep the cloth bag 9200 in a stable shape, the spring compression bagging device further needs to include a cloth supporting piece 4110, which extends along the longitudinal direction from the pushing station to the packaging station downstream, the cloth bag 9200 is wrapped around the front end of the cloth supporting piece 4110, and the cloth supporting piece 4110 defines a bagging channel extending into the cloth bag 9200, and the pushing piece 2110 pushes the spring 9110 along the bagging channel.

[0085] With reference to Figure 1 In some embodiments, the spring compression bagging device further includes an edge sealing assembly 4200 located on one side of the cloth supporting piece 4110, and the edge sealing assembly 4200 is used to connect two long edges of the cloth to form the cloth bag 9200 wrapping the cloth supporting piece 4110. In other words, the cloth bag 9200 is first formed by edge sealing the cloth in the longitudinal direction by the edge sealing assembly 4200, and then the bagged spring is formed by packaging in the transverse direction. In other embodiments, the edge sealing assembly 4200 can also be arranged downstream of the cloth supporting piece 4110, that is, the edge sealing and packaging are performed simultaneously or after the packaging.

[0086] The other specific structural design of the cloth supporting piece 4110 and the edge sealing assembly 4200 can refer to the related prior art, which will not be described here.

[0087] In some embodiments, the spring compression bagging device further includes a packaging module 3000 located at the packaging station, and the packaging module 3000 is used to package the spring 9100 into a bagged spring.

[0088] Exemplarily, in some embodiments, the packaging module 3000 includes a packaging assembly 3100 capable of clamping the cloth bag 9200 in the vertical direction and packaging a single spring 9100 into a bagged spring at the packaging station, and the packaging assembly 3100 is capable of moving in the longitudinal direction to scrape the spring from the pushing piece 2110 into the cloth bag 9200 when clamping the cloth bag 9200, and to convey the packaged bagged spring downstream. That is, the packaging assembly 3100 has a conveying function while performing packaging, which helps to simplify the structure of the spring compression bagging device and ensure the synchronization between the packaging action and the conveying action.

[0089] In order to facilitate the packaging assembly 3100 to scrape the spring 9100 into the cloth bag 9200, in some embodiments, the outlet end of the pushing piece 2110 and the cloth supporting piece 4110 is smaller in size in the vertical direction than the diameter of the spring 9100 to avoid the packaging assembly 3100, and the outlet end of the cloth supporting piece 4110 is open in the vertical direction to allow the packaging assembly 3100 to contact and scrape out the spring 9100.

[0090] The application can realize the packaging of the spring 9100 by welding. For example, refer to Figure 4 In an embodiment of the first aspect, the packaging assembly 3100 can include a welding die 3110 and a welding head 3120 arranged oppositely, the welding die 3110 and the welding head 3120 are respectively located on two sides of the cloth bag 9200 in the vertical direction, and the welding die 3110 and the welding head 3120 can approach or move away from each other to clamp the cloth bag 9200 and weld when approaching each other. Refer to Figure 2 The packaging module 3000 can also include a fourth driving assembly 3300 and a fifth driving assembly 3400, the fourth driving assembly 3300 is used to drive the welding die 3110 and the welding head 3120 to swing in the horizontal direction to repeatedly scrape out the spring 9100, and the fifth driving assembly 3400 is used to drive the welding die 3110 and the welding head 3120 to approach each other for packaging.

[0091] Of course, in some other embodiments, the packaging can also be realized by means other than welding.

[0092] The specific operation principle of various packaging methods can refer to the existing related technology, which will not be described here.

[0093] It should be noted that after the spring 9100 is scraped out and before the spring 9100 is packaged, the spring 9100 loses the constraint of the pushing piece 2110 in the axial direction and rebounds in the cloth bag 9200, which may cause arching. Therefore, in some embodiments, the packaging module 3000 can further include a cloth clamping assembly 3200, the cloth clamping assembly 3200 is located upstream of the packaging assembly 3100, and the cloth clamping assembly 3200 includes two second clamping pieces 3210, the two second clamping pieces 3210 are respectively located on two sides of the cloth bag 9200 in the vertical direction, and the second clamping pieces 3210 can approach or move away from each other to allow the cloth clamping assembly 3200 and the packaging assembly 3100 to alternately clamp the cloth bag 9200 and limit the spring 9100 to be packaged.

[0094] The packaging module 3000 can also include a sixth driving assembly 3500, the sixth driving assembly 3500 is used to drive the second clamping pieces 3210 to approach or move away from each other.

[0095] The sixth driving assembly 3500 is driven by a sixth driver 3510. For example, refer to Figure 4 The two second clamping pieces 3210 are respectively installed on two racks 3520, the two racks 3520 are coupled together through a gear set composed of a plurality of gears 3530, and the sixth driver 3510 drives the gears 3530 to rotate so as to make the second clamping pieces 3210 approach or move away from each other. The second clamping pieces 3210 can be arranged obliquely to make the position of the sixth driving assembly 3500 close to the upstream, so as to facilitate mutual avoidance between various components of the packaging module 3000, and avoid interference.

[0096] The packaging assembly 3100 can scrape the spring 9100 in different ways. For example, in some embodiments, the packaging assembly 3100 scrapes the spring 9100 that needs to be packaged at present from the pusher 2110 into the cloth bag 9200 at each packaging. Alternatively, in other embodiments, the packaging assembly 3100 scrapes the spring 9100 that needs to be packaged next time from the pusher 2110 into the cloth bag 9200 at each packaging.

[0097] Exemplarily, with reference to Figure 14 、 Figure 15 、 Figure 16 and Figure 17 , in the embodiments of the first aspect, the packaging assembly 3100 scrapes the spring 9100 that needs to be packaged next time from the pusher 2110 into the cloth bag 9200 at each packaging, and the packaging assembly 3100 further comprises first clamping members 3130 located on the side of the welding die 3110 and the welding head 3120 close to the upstream, and the two first clamping members 3130 are respectively located on the two sides of the cloth bag 9200 in the vertical direction, and the two first clamping members 3130 are synchronous with the welding die 3110 and the welding head 3120 to open and close (that is, follow the welding die 3110 and the welding head 3120 to approach or move away from each other) to scrape the spring 9100 from the pusher 2110.

[0098] Correspondingly, at this time, the spring compression into bag method further comprises:

[0099] The pusher 2110 pushes the spring 9100 to reach the packaging station;

[0100] Defining the spring 9100 carried by the pusher 2110 as the (n+1)th spring 9100, the packaging assembly 3100 clamps the cloth bag 9200 and moves downstream in the longitudinal direction to package the nth spring 9100 into a bagged spring and scrape the (n+1)th spring 9100 from the pusher 2110 into the cloth bag by the two first clamping members 3130;

[0101] The pusher 2110 moves upstream to reset;

[0102] The packaging assembly 3100 releases the cloth bag 9200 and moves upstream to reset.

[0103] Further, the spring compression into bag method further comprises that the cloth clamping assembly 3200 and the packaging assembly 3100 alternately clamp the cloth bag 9200, and the cloth clamping assembly 3200 limits the (n+1)th spring 9100 during the process that the packaging assembly releases the cloth bag 9200 and moves upstream to reset.

[0104] In the description of the application, reference has been made to descriptive terms including "one embodiment", "some embodiments", "an embodiment", "exemplary embodiment", "example", "specific example" or "some examples" 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 application. The illustrative appearances of the above described terms in various places in the specification are not intended to exclude that the terms so described can be used, to any effect, in other places too, as is apparent to those skilled in the art. Furthermore, description of a particular feature, structure, material, or characteristic in relation to an embodiment or example does not mean that it is included in that embodiment or example only. The specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0105] In some alternative embodiments, the functions / operations described in the block diagrams can not occur in the order presented in the operational illustrations. For example, two blocks shown in succession can in fact be executed substantially concurrently or the blocks can sometimes be executed in the reverse order, depending upon the functionality / operations involved. Also, the embodiments presented in the flow diagrams are provided by way of example only and are not intended to limit the scope of the application. Alternative embodiments are contemplated in which the order of the various operations is changed and in which sub-operations described as part of a larger operation are independently executed.

[0106] While the embodiments of the application have been shown and described, it is to be understood that the embodiments described are only by way of example and are not limiting of the scope of the application. Changes, modifications, substitutions and variations can be made to the embodiments without departing from the spirit of the application as defined by the claims and their equivalents.

Claims

1. A spring compression into bag apparatus, characterized by, The spring compression and bagging device comprises a compression module, an in-bag module, and an encapsulation module. The compression module comprises a compression assembly, a first driving assembly, and a second driving assembly. The compression assembly comprises a limiting piece and two compression pieces. The limiting piece and the two compression pieces enclose a compression chamber for accommodating a spring. The limiting piece is arranged in the radial direction of the spring. The two compression pieces are oppositely arranged in the axial direction of the spring. The axial direction is parallel to the transverse direction.

2. The spring compression-in-bag device of claim 1, wherein The first driving assembly can drive the two compression pieces to approach or move away from each other. When the two compression pieces approach each other, the spring is compressed. The second driving assembly can drive the compression assembly to switch between a compression station and a pushing station. The in-bag module comprises a pushing piece and a third driving assembly. The third driving assembly can drive the pushing piece to reciprocate in the longitudinal direction. In the compression station, the compression chamber is connected with a conveying piece for conveying the spring. The spring enters the compression chamber and is compressed by the two compression pieces. During the compression process, the limiting piece limits the radial deformation of the spring in at least two directions intersecting with each other. Alternatively, the limiting piece and the conveying piece jointly limit the radial deformation of the spring in at least two directions intersecting with each other. In the pushing station, the spring is located on the movement path of the pushing piece to allow the pushing piece to obtain and push the compressed spring downstream. The spring compression and bagging device comprises an encapsulation module. The encapsulation module is located in an encapsulation station. The encapsulation module comprises an encapsulation assembly. The encapsulation assembly comprises a welding die and a welding head oppositely arranged. The welding die and the welding head are respectively located on two sides of a cloth bag in the vertical direction. The welding die and the welding head can approach or move away from each other to clamp and weld the cloth bag when they approach each other. The encapsulation assembly further comprises two first clamping pieces oppositely arranged. The two first clamping pieces are respectively located on two sides of the cloth bag. The first clamping pieces follow the welding die and the welding head to approach or move away from each other to scrape the spring out of the pushing piece. The encapsulation module comprises a cloth clamping assembly located upstream of the encapsulation assembly. The cloth clamping assembly comprises two second clamping pieces. The two second clamping pieces are respectively located on two sides of the cloth bag in the vertical direction. The second clamping pieces can approach or move away from each other to allow the cloth clamping assembly and the encapsulation assembly to alternately clamp the cloth bag and limit the spring to be encapsulated. The compression chamber has a first opening for receiving the spring. The compression assembly moves along the first opening from the pushing station to the compression station. In the compression station, the conveying piece blocks the first opening, and the limiting piece and the conveying piece jointly limit the spring. The limiting piece comprises a first baffle and a second baffle. The first baffles are located on the adjacent sides of the first opening. The two first baffles are oppositely arranged. The second baffle is located on the opposite side of the first opening. The compression chamber has a second opening for the pushing piece to pass through. The second opening penetrates along the longitudinal direction. The second opening only allows the compressed spring to pass through.

3. The spring compression-in-bag device of claim 1, wherein, The pushing member comprises two groups of tines arranged oppositely in the transverse direction, the tines are located at one end of the pushing member close to the downstream, the tines extend in the longitudinal direction, and the tines are used for clamping the compressed spring; the compression member comprises an avoiding slot, the avoiding slot is located on the side of the compression member in contact with the spring, the avoiding slot extends in the longitudinal direction and penetrates through the compression member, so as to allow the tines to pass through the avoiding slot and obtain the spring.

4. The spring compression-in-bag device of claim 3, wherein The pushing member comprises a partition plate arranged between the two groups of tines, the partition plate extends in the longitudinal direction, and the partition plate is used for being inserted between the spring wires of the spring to avoid the spring wires from being entangled when the spring leaves the pushing member and rebounds.

5. The spring compression-in-bag device of claim 1, wherein, The spring compression and bagging device comprises a cloth supporting member, the cloth supporting member extends along the longitudinal direction from the pushing station to the packaging station downstream, the cloth bag is wrapped around the front end of the cloth supporting member, the cloth supporting member defines a bagging channel extending into the cloth bag, and the pushing member pushes the spring along the bagging channel.

6. The spring compression-in-bag device of claim 5, wherein, The spring compression and bagging device comprises an edge sealing assembly located on one side of the cloth supporting member, the edge sealing assembly is used for connecting two long edges of cloth to make the cloth form the cloth bag wrapping the cloth supporting member.

7. The spring compression-in-bag device of claim 5, wherein, At the packaging station, the packaging assembly can clamp the cloth bag in the vertical direction and package the single spring to form a bagged spring, and the packaging assembly can move in the longitudinal direction to scrape the spring from the pushing member into the cloth bag when clamping the cloth bag, and make the packaged bagged spring transported downstream.

8. The spring compression-in-bag device of claim 1, wherein, The spring compression and bagging device comprises a conveying module, the conveying module comprises an eighth driving assembly and the conveying member, the conveying member adopts a magnetic suction seat, the conveying member is used for attracting and fixing the spring in the radial direction, and the eighth driving assembly can drive the conveying member to move to receive the spring from the upstream and convey the spring to the compression module.

9. A pocketed spring machine characterized by, The bagged spring machine comprises the spring compression and bagging device of any one of claims 1 to 8, and further comprises a spring winding device located upstream of the spring compression and bagging device, and the spring winding device is used for providing the spring.

10. A spring compression into bag method, characterized by, The spring compression and bagging method uses the spring compression and bagging device of any one of claims 1 to 8, and comprises the following steps: The compression assembly moves to the compression station; The spring enters the compression chamber, the radial deformation of the spring is limited in at least two directions intersecting with each other, and the compression member compresses the limited spring in the axial direction; The compression assembly moves to the pushing station; The pushing member moves in the longitudinal direction from the upstream of the compression assembly to the downstream of the compression assembly, the pushing member obtains the compressed spring from the compression assembly and pushes it downstream.

11. The spring compression into bag method of claim 10, wherein, The spring compression into bag method further comprises that the pushing member pushes the spring to reach the packaging station; defining the spring carried by the pushing member as the n+1th spring, the packaging assembly clamps the cloth bag and moves downstream in the longitudinal direction to package the nth spring as a bagged spring and scrape the n+1th spring from the pushing member into the cloth bag by the two first clamping members; the pushing member moves upstream to reset; the packaging assembly releases the cloth bag and moves upstream to reset.

12. The spring compression into bag method of claim 11, wherein, The cloth clamping assembly and the packaging assembly alternately clamp the cloth bag, and the n+1th spring is limited by the cloth clamping assembly during the process that the packaging assembly releases the cloth bag and moves upstream to reset.

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